U.S. patent application number 15/171257 was filed with the patent office on 2017-01-19 for cable connection structure and cable arranging part.
This patent application is currently assigned to JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED. The applicant listed for this patent is JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED. Invention is credited to Daisuke HIRAO, Hiroyasu KOIZUMI, Shuichi MASUYAMA, Tatsuya SHIODA, Tetsuya TAKEBE.
Application Number | 20170018864 15/171257 |
Document ID | / |
Family ID | 57749591 |
Filed Date | 2017-01-19 |
United States Patent
Application |
20170018864 |
Kind Code |
A1 |
MASUYAMA; Shuichi ; et
al. |
January 19, 2017 |
CABLE CONNECTION STRUCTURE AND CABLE ARRANGING PART
Abstract
A cable arranging part of the present invention has a fixed
shape and comprises a position determining portion, a plurality of
cable through holes, and an opening. In a state in which the
position determining portion is secured to a position reference
portion, the cable arranging part is in a predetermined position on
a substrate. The cable through holes become perpendicular to a line
of the electrodes and parallel to the substrate in the
predetermined position. The opening is provided somewhere midway
through the cable through holes and a ground cable through hole. As
for the sizes of the cable through holes in a perpendicular
direction to the substrate in the predetermined position, the size
of the cable through hole on the side where the electrodes are
located relative to the opening is greater than the size of the
cable through hole on the side opposite to the electrodes.
Inventors: |
MASUYAMA; Shuichi; (Tokyo,
JP) ; SHIODA; Tatsuya; (Tokyo, JP) ; HIRAO;
Daisuke; (Tokyo, JP) ; TAKEBE; Tetsuya;
(Tokyo, JP) ; KOIZUMI; Hiroyasu; (Tokyo,
JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED |
Tokyo |
|
JP |
|
|
Assignee: |
JAPAN AVIATION ELECTRONICS
INDUSTRY, LIMITED
Tokyo
JP
|
Family ID: |
57749591 |
Appl. No.: |
15/171257 |
Filed: |
June 2, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H05K 2201/10356
20130101; H05K 3/3405 20130101; H01R 12/598 20130101; H05K 1/18
20130101 |
International
Class: |
H01R 12/53 20060101
H01R012/53; H05K 1/18 20060101 H05K001/18; H01B 11/18 20060101
H01B011/18 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 15, 2015 |
JP |
2015-141528 |
Claims
1. A cable connection structure comprising: a cable arranging part
for connecting a ground cable and N coaxial cables to electrodes on
a substrate in a state in which the ground cable and the N coaxial
cables are arranged in a plane parallel to the substrate, wherein N
is an integer greater than or equal to 2, the substrate comprises N
electrodes arranged in a line, a band-like ground electrode placed
in parallel to the line of the electrodes, and a position reference
portion serving as a reference with respect to which a positional
relationship on the substrate is determined, the cable arranging
part has a fixed shape, the cable arranging part comprises a
position determining portion which causes the cable arranging part
to be in a predetermined position on the substrate in a state in
which the position determining portion is secured to the position
reference portion, N cable through holes into which the coaxial
cables are to be inserted, the N cable through holes becoming
perpendicular to the line of the electrodes and parallel to the
substrate in the predetermined position, a ground cable through
hole into which the ground cable is to be inserted, the ground
cable through hole becoming perpendicular to the line of the
electrodes and parallel to the substrate in the predetermined
position, and an opening provided somewhere midway through the N
cable through holes and the ground cable through hole, as for sizes
of the cable through holes in a perpendicular direction to the
substrate in the predetermined position, a size of the cable
through hole on a side where the electrodes are located relative to
the opening is greater than a size of the cable through hole on a
side opposite to the electrodes, the N coaxial cables are in a
state in which the N coaxial cables are fixed with an adhesive
injected from the opening in a state in which the N coaxial cables
are inserted into the cable through holes from the side opposite to
the electrodes in the predetermined position and passed
therethrough, the ground cable is in a state in which the ground
cable is fixed with the adhesive injected from the opening in a
state in which the ground cable is inserted into the ground cable
through hole from a side opposite to the ground electrode in the
predetermined position and passed therethrough, and in a state in
which the cable arranging part is placed in the predetermined
position, external conductors of the coaxial cables are connected
to the ground electrode, each of central conductors of the coaxial
cables is connected to any one of the N electrodes, and a conductor
wire of the ground cable is connected to the ground electrode.
2. A cable connection structure comprising: a cable arranging part
for connecting M signal cables, each being a coated single-core
conductor wire, to electrodes on a substrate in a state in which
the M signal cables are arranged in a plane parallel to the
substrate, wherein M is an integer greater than or equal to 2, the
substrate comprises M electrodes arranged in a line, and a position
reference portion serving as a reference with respect to which a
positional relationship on the substrate is determined, the cable
arranging part has a fixed shape, the cable arranging part
comprises a position determining portion which causes the cable
arranging part to be in a predetermined position on the substrate
in a state in which the position determining portion is secured to
the position reference portion, M cable through holes into which
the signal cables are to be inserted, the M cable through holes
becoming perpendicular to the line of the electrodes and parallel
to the substrate in the predetermined position, and an opening
provided somewhere midway through the M cable through holes, as for
sizes of the cable through holes in a perpendicular direction to
the substrate in the predetermined position, a size of the cable
through hole on a side where the electrodes are located relative to
the opening is greater than a size of the cable through hole on a
side opposite to the electrodes, the M signal cables are in a state
in which the M signal cables are fixed with an adhesive injected
from the opening in a state in which the M signal cables are
inserted into the cable through holes from the side opposite to the
electrodes in the predetermined position and passed therethrough,
and in a state in which the cable arranging part is placed in the
predetermined position, each of the conductor wires of the signal
cables is connected to any one of the M electrodes.
3. The cable connection structure according to claim 1, wherein M
is an integer greater than or equal to 2, the substrate further
comprises M second electrodes arranged in a line parallel to the
line of the N electrodes, on a surface opposite to a surface on
which the N electrodes are arranged, and a second position
reference portion serving as a reference with respect to which a
positional relationship on the substrate is determined, the cable
connection structure further comprises a second cable arranging
part for connecting M signal cables, each being a coated
single-core conductor wire, to the second electrodes by arranging
the M signal cables in a plane parallel to the substrate on a
surface opposite to a surface of the substrate to which the coaxial
cables are connected, the second cable arranging part has a fixed
shape, the second cable arranging part comprises a second position
determining portion which causes the second cable arranging part to
be in a second predetermined position on the substrate in a state
in which the second position determining portion is secured to the
second position reference portion, M signal cable through holes
into which the signal cables are to be inserted, the M signal cable
through holes becoming perpendicular to the line of the second
electrodes and parallel to the substrate in the second
predetermined position, and a second opening provided somewhere
midway through the M signal cable through holes, the M signal
cables are in a state in which the M signal cables are fixed with
an adhesive injected from the second opening in a state in which
the M signal cables are inserted into the signal cable through
holes from a side opposite to the second electrodes in the second
predetermined position and passed therethrough, and in a state in
which the second cable arranging part is placed in the second
predetermined position, each of the conductor wires of the signal
cables is connected to any one of the M second electrodes.
4. The cable connection structure according to claim 1, wherein the
position reference portion is a hole provided in the substrate, and
the position determining portion is a protrusion which is inserted
into the position reference portion and a height of the protrusion
is lower than a thickness of the substrate.
5. The cable connection structure according to claim 2, wherein the
position reference portion is a hole provided in the substrate, and
the position determining portion is a protrusion which is inserted
into the position reference portion and a height of the protrusion
is lower than a thickness of the substrate.
6. The cable connection structure according to claim 1, wherein in
the predetermined position, distances between inner surfaces of the
cable through holes, the inner surfaces close to the substrate, and
the substrate are fixed, and, as for the inner surface away from
the substrate, the inner surface of the cable through hole on a
side where the electrodes are located relative to the opening is
farther away from the substrate than the cable through hole on a
side opposite to the electrodes.
7. The cable connection structure according to claim 2, wherein in
the predetermined position, distances between inner surfaces of the
cable through holes, the inner surfaces close to the substrate, and
the substrate are fixed, and, as for the inner surface away from
the substrate, the inner surface of the cable through hole on a
side where the electrodes are located relative to the opening is
farther away from the substrate than the cable through hole on a
side opposite to the electrodes.
8. The cable connection structure according to claim 1, wherein as
for sizes of the cable through holes in a parallel direction to the
substrate in the predetermined position, a size of the cable
through hole on a side where the electrodes are located relative to
the opening is smaller than a size of the cable through hole on a
side opposite to the electrodes.
9. The cable connection structure according to claim 2, wherein as
for sizes of the cable through holes in a parallel direction to the
substrate in the predetermined position, a size of the cable
through hole on a side where the electrodes are located relative to
the opening is smaller than a size of the cable through hole on a
side opposite to the electrodes.
10. The cable connection structure according to claim 1, wherein
the opening is formed in a direction of the cable through holes
from a side away from the substrate in the predetermined position
and is not formed in a position closer to the substrate than inner
surfaces of the cable through holes, the inner surfaces close to
the substrate.
11. The cable connection structure according to claim 2, wherein
the opening is formed in a direction of the cable through holes
from a side away from the substrate in the predetermined position
and is not formed in a position closer to the substrate than inner
surfaces of the cable through holes, the inner surfaces close to
the substrate.
12. A cable arranging part for connecting a ground cable and N
coaxial cables to electrodes on a substrate in a state in which the
ground cable and the N coaxial cables are arranged in a plane
parallel to the substrate, wherein N is an integer greater than or
equal to 2, the substrate comprises N electrodes arranged in a
line, a band-like ground electrode placed in parallel to the line
of the N electrodes, and a position reference portion serving as a
reference with respect to which a positional relationship on the
substrate is determined, the cable arranging part has a fixed
shape, the cable arranging part comprises a position determining
portion which causes the cable arranging part to be in a
predetermined position on the substrate in a state in which the
position determining portion is secured to the position reference
portion, N cable through holes into which the coaxial cables are to
be inserted, the N cable through holes becoming perpendicular to
the line of the N electrodes and parallel to the substrate in the
predetermined position, a ground cable through hole into which the
ground cable is to be inserted, the ground cable through hole
becoming perpendicular to the line of the N electrodes and parallel
to the substrate in the predetermined position, and an opening
provided somewhere midway through the N cable through holes, and as
for sizes of the cable through holes in a perpendicular direction
to the substrate in the predetermined position, a size of the cable
through hole on a side where the electrodes are located relative to
the opening is greater than a size of the cable through hole on a
side opposite to the electrodes.
13. A cable arranging part for connecting M signal cables, each
being a coated single-core conductor wire, to electrodes on a
substrate in a state in which the M signal cables are arranged in a
plane parallel to the substrate, wherein M is an integer greater
than or equal to 2, the substrate comprises M electrodes arranged
in a line, and a position reference portion serving as a reference
with respect to which a positional relationship on the substrate is
determined, the cable arranging part has a fixed shape, the cable
arranging part comprises a position determining portion which
causes the cable arranging part to be in a predetermined position
on the substrate in a state in which the position determining
portion is secured to the position reference portion, M cable
through holes into which the signal cables are to be inserted, the
M cable through holes becoming perpendicular to the line of the
electrodes and parallel to the substrate in the predetermined
position, and an opening provided somewhere midway through the M
cable through holes, and as for sizes of the cable through holes in
a perpendicular direction to the substrate in the predetermined
position, a size of the cable through hole on a side where the
electrodes are located relative to the opening is greater than a
size of the cable through hole on a side opposite to the
electrodes.
14. The cable arranging part according to claim 12, wherein in the
predetermined position, distances between inner surfaces of the
cable through holes, the inner surfaces close to the substrate, and
the substrate are fixed, and, as for the inner surface away from
the substrate, the inner surface of the cable through hole on a
side where the electrodes are located relative to the opening is
farther away from the substrate than the cable through hole on a
side opposite to the electrodes.
15. The cable arranging part according to claim 13, wherein in the
predetermined position, distances between inner surfaces of the
cable through holes, the inner surfaces close to the substrate, and
the substrate are fixed, and, as for the inner surface away from
the substrate, the inner surface of the cable through hole on a
side where the electrodes are located relative to the opening is
farther away from the substrate than the cable through hole on a
side opposite to the electrodes.
16. The cable arranging part according to claim 12, wherein as for
sizes of the cable through holes in a parallel direction to the
substrate in the predetermined position, a size of the cable
through hole on a side where the electrodes are located relative to
the opening is smaller than a size of the cable through hole on a
side opposite to the electrodes.
17. The cable arranging part according to claim 13, wherein as for
sizes of the cable through holes in a parallel direction to the
substrate in the predetermined position, a size of the cable
through hole on a side where the electrodes are located relative to
the opening is smaller than a size of the cable through hole on a
side opposite to the electrodes.
18. The cable arranging part according to claim 12, wherein the
opening is formed in a direction of the cable through holes from a
side away from the substrate in the predetermined position and is
not formed in a position closer to the substrate than inner
surfaces of the cable through holes, the inner surfaces close to
the substrate.
19. The cable arranging part according to claim 13, wherein the
opening is formed in a direction of the cable through holes from a
side away from the substrate in the predetermined position and is
not formed in a position closer to the substrate than inner
surfaces of the cable through holes, the inner surfaces close to
the substrate.
Description
TECHNICAL FIELD
[0001] The present invention relates to a cable connection
structure and a cable arranging part which are used in connecting a
plurality of coaxial cables to a substrate.
BACKGROUND ART
[0002] As a method of arranging a plurality of coaxial cables, the
techniques, for example, described in Japanese Patent Applications
Laid Open Nos. 2011-86460 (hereinafter referred to as "Patent
Literature 1"), 2014-103130 (hereinafter referred to as "Patent
Literature 2"), and 2008-166251 (hereinafter referred to as "Patent
Literature 3") are known. In FIG. 1, FIG. 1 of Patent Literature 1
is depicted. The abstract of Patent Literature 1 states that "A
terminal processed cable array according to the present invention
is a terminal processed cable array including a plurality of cables
and a terminal holding member formed of molded thermoset resin
which is not thermally hardened, in which the cables are arranged
at particular pitch intervals with the terminals thereof being
aligned, terminal-side conductors forming the cables are exposed,
and the exposed conductors are fixed at the particular pitch
intervals by the terminal holding member".
[0003] In FIG. 2, FIG. 1 of Patent Literature 2 is depicted. The
abstract of Patent Literature 2 states that "A cable connection
structure includes a positioning unit 11 for positioning central
conductors 3 in a state in which internal insulators 4 of
multi-conductor coaxial cables 2 are fixed between signal
electrodes 8 and a ground electrode 9 of a substrate 7 having the
signal electrodes 8 to which the central conductors 3 of the
multi-conductor coaxial cable 2 are connected and the ground
electrode 9 to which external conductors 5 of the multi-conductor
coaxial cable 2 are connected. The positioning unit 11 is formed of
an adhesive nonconducting material which is hardened after placing
the positions of the internal insulators 4 fixed to the positioning
unit 11 in alignment".
[0004] FIG. 1(A) of Patent Literature 3 is depicted in FIG. 3A, and
FIG. 1(B) of Patent Literature 3 is depicted in FIG. 3B. The
abstract of Patent Literature 3 states that "In a multi-conductor
cable harness 10, coaxial cables 11 for signal transmission, cables
11A for power supply, and a ground cable 40 having a central
conductor 44, an external conductor 42 placed on the outer
periphery of the central conductor 44, and an outer sheath 41
placed on the outer periphery of the external conductor 42 are
arranged in parallel, the outside diameter of an outer sheath 12 of
each coaxial cable 11 and the outside diameter of an outer sheath
41 of the ground cable 40 are approximately equal to each other,
the outside diameter of an external conductor 13 of each coaxial
cable 11, the outside diameter of an external conductor 13A of each
cable 11A, and the outside diameter of the external conductor 42 of
the ground cable 40 are approximately equal to one another, and the
external conductors 13 of the coaxial cables 11, the external
conductors 13A of the cables 11A, and the external conductor 42 of
the ground cable 40 are conductively connected to common ground
bars 20 and 30".
SUMMARY OF THE INVENTION
[0005] The techniques described in Patent Literatures 1 and 2 are
techniques of arranging a plurality of cables covered with coatings
in a plane (performing the arrangement of cables) and performing
terminal processing collectively thereon. However, since a
sheet-like object (a polyimide sheet in Patent Literature 1 and a
laminated tape in Patent Literature 2) is used in arranging the
cables, the above techniques have the drawbacks of, for example,
difficulty in determining a cable arrangement pitch (a space
between one cable and another) accurately and difficulty in
handling the sheet-like object while maintaining the planar state
because of the flexibility of the sheet-like object. The techniques
described in Patent Literature 3 are not techniques of arranging a
plurality of cables in a plane (performing the arrangement of
cables) and performing terminal processing collectively thereon,
but a technique of connecting external conductors of coaxial cables
individually subjected to terminal processing and a ground cable
and a technique of positioning central conductors.
[0006] In view of the circumstances described above, an object of
the present invention is to provide a cable connection structure
and a cable arranging part which facilitate processing from a
process of arranging a plurality of cables covered with coatings in
a plane to a process of connecting the cables to electrodes on a
substrate.
[0007] A first cable connection structure of the present invention
is a cable connection structure comprising a cable arranging part
for connecting a ground cable and N (N is an integer greater than
or equal to 2) coaxial cables to electrodes on a substrate in a
state in which the ground cable and the N coaxial cables are
arranged in a plane parallel to the substrate. The substrate
comprises N electrodes, a ground electrode, and a position
reference portion. The N electrodes are arranged in a line. The
ground electrode is placed in parallel to the line of the
electrodes and has a band-like shape. The position reference
portion is a portion serving as the reference with respect to which
the positional relationship on the substrate is determined.
[0008] The cable arranging part has a fixed shape and comprises a
position determining portion, N cable through holes, a ground cable
through hole, and an opening. In a state in which the position
determining portion is secured to the position reference portion,
the cable arranging part is in a predetermined position on the
substrate. The N cable through holes become perpendicular to the
line of the electrodes and parallel to the substrate in the
predetermined position and are holes into and through which the
coaxial cables are to be inserted and passed. The ground cable
through hole becomes perpendicular to the line of the electrodes
and parallel to the substrate in the predetermined position and is
a hole into and through which the ground cable is to be inserted
and passed. The opening is provided somewhere midway through the N
cable through holes and the ground cable through hole.
[0009] As for the sizes of the cable through holes in a
perpendicular direction to the substrate in the predetermined
position, the size of the cable through hole on the side where the
electrodes are located relative to the opening is greater than the
size of the cable through hole on the side opposite to the
electrodes. The N coaxial cables are in a state in which the N
coaxial cables are fixed with an adhesive injected from the opening
in a state in which the N coaxial cables are inserted into the
cable through holes from the side opposite to the electrodes in the
predetermined position and passed therethrough. The ground cable is
in a state in which the ground cable is fixed with the adhesive
injected from the opening in a state in which the ground cable is
inserted into the ground cable through hole from the side opposite
to the ground electrode in the predetermined position and passed
therethrough. In a state in which the cable arranging part is
placed in the predetermined position, external conductors of the
coaxial cables are connected to the ground electrode, each of
central conductors of the coaxial cables is connected to any one of
the N electrodes, and a conductor wire of the ground cable is
connected to the ground electrode.
[0010] A second cable connection structure of the present invention
is a cable connection structure comprising a cable arranging part
for connecting M (M is an integer greater than or equal to 2)
signal cables, each being a coated single-core conductor wire, to
electrodes on a substrate by arranging the M signal cables in a
plane parallel to the substrate. The substrate comprises M
electrodes and a position reference portion. The M electrodes are
arranged in a line with a space left therebetween, the space
previously set for each of the M electrodes. The position reference
portion is a portion serving as the reference with respect to which
the positional relationship on the substrate is determined.
[0011] The cable arranging part has a fixed shape and comprises a
position determining portion, M cable through holes, and an
opening. In a state in which the position determining portion is
secured to the position reference portion, the cable arranging part
is in a predetermined position on the substrate. The M cable
through holes are holes into and through which the signal cables
are to be inserted and passed, and the M cable through holes become
perpendicular to the line of the electrodes and parallel to the
substrate in the predetermined position. The opening is provided
somewhere midway through the M cable through holes.
[0012] As for the sizes of the cable through holes in a
perpendicular direction to the substrate in the predetermined
position, the size of the cable through hole on the side where the
electrodes are located relative to the opening is greater than the
size of the cable through hole on the side opposite to the
electrodes. The M signal cables are in a state in which the M
signal cables are fixed with an adhesive injected from the opening
in a state in which the M signal cables are inserted into the cable
through holes from the side opposite to the electrodes in the
predetermined position and passed therethrough. In a state in which
the cable arranging part is placed in the predetermined position,
each of the conductor wires of the signal cables is connected to
any one of the M electrodes.
[0013] With the cable connection structure and the cable arranging
part of the present invention, since the cable arranging part has a
fixed shape, it is possible to perform terminal processing
operations such as inserting and passing the coaxial cables or the
signal cables into and through the cable arranging part and
removing coatings with ease. Moreover, by securing the position
determining portion to the position reference portion, it is
possible to determine the position of the cable arranging part on
the substrate. Furthermore, as for the sizes of the cable through
holes in a perpendicular direction to the substrate in the
predetermined position, the size of the cable through hole on the
side where the electrodes are located relative to the opening is
greater than the size of the cable through hole on the side
opposite to the electrodes, which makes it easy to perform
insertion of the coaxial cables or the signal cables even when the
opening is provided. Therefore, processing from a process of
arranging a plurality of cables covered with coatings in a plane to
a process of connecting the cables to the electrodes on the
substrate becomes easier than the existing processing.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] FIG. 1 is FIG. 1 of Patent Literature 1.
[0015] FIG. 2 is FIG. 1 of Patent Literature 2.
[0016] FIG. 3A is FIG. 1(A) of Patent Literature 3.
[0017] FIG. 3B is FIG. 1(B) of Patent Literature 3.
[0018] FIG. 4 is a perspective view of a cable arranging part of a
first embodiment.
[0019] FIG. 5A is a rear view for depicting the structure of the
cable arranging part of the first embodiment in detail.
[0020] FIG. 5B is a plan view for depicting the structure of the
cable arranging part of the first embodiment in detail.
[0021] FIG. 5C is a front view for depicting the structure of the
cable arranging part of the first embodiment in detail.
[0022] FIG. 5D is a bottom view for depicting the structure of the
cable arranging part of the first embodiment in detail.
[0023] FIG. 5E is a left-side view for depicting the structure of
the cable arranging part of the first embodiment in detail.
[0024] FIG. 6A is a diagram for depicting the shapes of cable
through holes of the cable arranging part and a position in which
an opening is formed, the diagram depicting a first example of the
shapes of the cable through holes.
[0025] FIG. 6B is a diagram for depicting the shapes of the cable
through holes of the cable arranging part and a position in which
the opening is formed, the diagram depicting a second example of
the shapes of the cable through holes.
[0026] FIG. 7 is a diagram depicting the procedures of a cable
connecting method.
[0027] FIG. 8A is a rear view for depicting a state in which
coaxial cables and ground cables are attached to the cable
arranging part and coatings, external conductors, and internal
insulating layers are removed.
[0028] FIG. 8B is a plan view for depicting the state in which the
coaxial cables and the ground cables are attached to the cable
arranging part and the coatings, the external conductors, and the
internal insulating layers are removed.
[0029] FIG. 8C is a front view for depicting the state in which the
coaxial cables and the ground cables are attached to the cable
arranging part and the coatings, the external conductors, and the
internal insulating layers are removed.
[0030] FIG. 8D is a bottom view for depicting the state in which
the coaxial cables and the ground cables are attached to the cable
arranging part and the coatings, the external conductors, and the
internal insulating layers are removed.
[0031] FIG. 8E is a left-side view for depicting the state in which
the coaxial cables and the ground cables are attached to the cable
arranging part and the coatings, the external conductors, and the
internal insulating layers are removed.
[0032] FIG. 9 is a perspective view depicting a state in which the
coaxial cables and the ground cables are attached to the cable
arranging part and subjected to terminal processing.
[0033] FIG. 10 is a perspective view depicting a state in which the
cable arranging part in the state depicted in FIG. 9 is attached to
a substrate.
[0034] FIG. 11A is a plan view for depicting the state in which the
cable arranging part in the state depicted in FIG. 9 is attached to
the substrate.
[0035] FIG. 11B is a rear view for depicting the state in which the
cable arranging part in the state depicted in FIG. 9 is attached to
the substrate.
[0036] FIG. 11C is a bottom view for depicting the state in which
the cable arranging part in the state depicted in FIG. 9 is
attached to the substrate.
[0037] FIG. 11D is a right-side view for depicting the state in
which the cable arranging part in the state depicted in FIG. 9 is
attached to the substrate.
[0038] FIG. 12A is a diagram depicting how a position determining
portion is secured to a position reference portion when the cable
arranging part is attached to the substrate, the diagram depicting
a state before the attachment of the cable arranging part to the
substrate.
[0039] FIG. 12B is a diagram depicting how the position determining
portion is secured to the position reference portion when the cable
arranging part is attached to the substrate, the diagram depicting
a state after the attachment of the cable arranging part to the
substrate.
[0040] FIG. 13A is a rear view for depicting the structure of a
cable arranging part of a second embodiment in detail.
[0041] FIG. 13B is a plan view for depicting the structure of the
cable arranging part of the second embodiment in detail.
[0042] FIG. 13C is a front view for depicting the structure of the
cable arranging part of the second embodiment in detail.
[0043] FIG. 14A is a left-side view depicting a state in which
signal cables and power-supply cables (which are coated single-core
conductor wires) are fixed with an adhesive in a state in which the
signal cables and the power-supply cables are inserted into and
passed through the cable arranging part and the signal cables and
the power-supply cables are attached to the substrate after being
subjected to terminal processing.
[0044] FIG. 14B is a plan view depicting a state in which the
signal cables and the power-supply cables (which are coated
single-core conductor wires) are fixed with an adhesive in a state
in which the signal cables and the power-supply cables are inserted
into and passed through the cable arranging part and the signal
cables and the power-supply cables are attached to the substrate
after being subjected to terminal processing.
[0045] FIG. 15A is a plan view for depicting the structure of a
cable arranging part of a third embodiment.
[0046] FIG. 15B is a front view for depicting the structure of the
cable arranging part of the third embodiment.
[0047] FIG. 15C is a bottom view for depicting the structure of the
cable arranging part of the third embodiment.
[0048] FIG. 15D is a left-side view for depicting the structure of
the cable arranging part of the third embodiment.
[0049] FIG. 16A is a diagram depicting how an attaching step which
is performed in forming a cable arranging structure of the third
embodiment is performed, the diagram depicting a state before the
attachment of the cable arranging parts to the substrate.
[0050] FIG. 16B is a diagram depicting how the attaching step which
is performed in forming the cable arranging structure of the third
embodiment is performed, the diagram depicting a state after the
attachment of the cable arranging parts to the substrate.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0051] Hereinafter, embodiments of the present invention will be
described in detail. Incidentally, component elements having the
same function will be identified with the same numeral and
overlapping explanations will be omitted.
First Embodiment
[0052] In FIG. 4, a perspective view of a cable arranging part of a
first embodiment is depicted. FIGS. 5A to 5E are diagrams depicting
the structure of the cable arranging part of the first embodiment
in detail. FIGS. 6A and 6B are diagrams for depicting the shapes of
cable through holes of the cable arranging part and a position in
which an opening is formed. FIG. 6A is a diagram depicting a first
example of the shapes of the cable through holes, and FIG. 6B is a
diagram depicting a second example of the shapes of the cable
through holes. FIG. 7 is a diagram depicting the procedures of a
cable connecting method. FIGS. 8A to 8E are diagrams depicting a
state in which coaxial cables and ground cables are attached to the
cable arranging part and coatings, external conductors, and
internal insulating layers are removed. FIG. 9 is a perspective
view depicting a state in which the coaxial cables and the ground
cables are attached to the cable arranging part and subjected to
terminal processing. FIG. 10 is a perspective view depicting a
state in which the cable arranging part in the state depicted in
FIG. 9 is attached to a substrate, and FIGS. 11A to 11D are
diagrams depicting the state in which the cable arranging part in
the state depicted in FIG. 9 is attached to the substrate. FIGS.
12A and 12B are diagrams depicting how a position determining
portion is secured to a position reference portion when the cable
arranging part is attached to the substrate. FIG. 12A is a diagram
depicting a state before the attachment of the cable arranging part
to the substrate, and FIG. 12B is a diagram depicting a state after
the attachment of the cable arranging part to the substrate. In
order to explain the orientation of the drawings depicted in FIGS.
5A to 5E, FIGS. 8A to 8E, and FIGS. 11A to 11D, a face of the cable
arranging part close to the ends of the coaxial cables and the
ground cables (a face close to electrodes when the cable arranging
part is attached to the substrate) is regarded as a front face. In
this case, FIG. 5A is a rear view, FIG. 5B is a plan view, FIG. 5C
is a front view, FIG. 5D is a bottom view, and FIG. 5E is a
left-side view. FIG. 8A is a rear view, FIG. 8B is a plan view,
FIG. 8C is a front view, FIG. 8D is a bottom view, and FIG. 8E is a
left-side view. FIG. 11A is a plan view, FIG. 11B is a rear view,
FIG. 11C is a bottom view, and FIG. 11D is a right-side view.
[0053] A cable connection structure of the first embodiment is a
cable connection structure having a cable arranging part 100 for
connecting ground cables 240.sub.1 and 240.sub.2 and N (N is an
integer greater than or equal to 2 and n is an integer greater than
or equal to 1 but smaller than or equal to N) coaxial cables
220.sub.1, . . . , 220.sub.N to electrodes 320.sub.1, . . . ,
320.sub.N and 340 on a substrate 310 in a state in which the ground
cables 240.sub.1, and 240.sub.2 and the N coaxial cables 220.sub.1,
. . . , 220.sub.N are arranged in a plane parallel to the substrate
310. The substrate 310 comprises the N electrodes 320.sub.1, . . .
, 320.sub.N, the ground electrode 340, and position reference
portions 316.sub.1, and 316.sub.2. The N electrodes 320.sub.1, . .
. , 320.sub.N are arranged in a line with spaces left therebetween,
each of the spaces previously set. The space left between the
electrodes is determined by the characteristics of circuits to be
formed on the substrate with consideration given to the type of a
signal, for example, and the electrodes do not have to be spaced
uniformly. The ground electrode 340 is placed in parallel to the
line of the electrodes 320.sub.1, . . . , 320.sub.N and has a
band-like shape. The position reference portions 316.sub.1, and
316.sub.2 are portions serving as the reference with respect to
which the positional relationship on the substrate 310 is
determined. In the example depicted in FIGS. 11A to 11D and FIGS.
12A and 12B, the position reference portions 316.sub.1, and
316.sub.2 are holes provided in the substrate 310.
[0054] The cable arranging part 100 has a fixed shape and comprises
position determining portions 160, and 160.sub.2, N cable through
holes (110.sub.1, 120.sub.1), . . . , (110.sub.N, 120.sub.N),
ground cable through holes (130.sub.1, 140.sub.1) and (130.sub.2,
140.sub.2), and an opening 150. Having "the fixed shape" means that
the cable arranging part 100 maintains a fixed shape in a series of
processes of attaching the coaxial cables 220.sub.1, . . . ,
220.sub.N and the ground cables 240, and 240.sub.2 without being
deformed by gravity when the orientation of the cable arranging
part 100 is changed. In a state in which the position determining
portions 160.sub.1 and 160.sub.2 are secured to the position
reference portions 316.sub.1 and 316.sub.2, the cable arranging
part 100 is in a predetermined position on the substrate 310. In
the example depicted in FIGS. 5A to 5E, FIGS. 8A to 8E, FIGS. 11A
to 11D, and FIGS. 12A and 12B, the position determining portions
160.sub.1 and 160.sub.2 are protrusions which are inserted into the
position reference portions 316.sub.1 and 316.sub.2 and the height
of the protrusions is lower than the thickness of the substrate
310. As depicted in FIGS. 12A and 12B, as a result of the position
determining portions 160.sub.1 and 160.sub.2 being inserted into
the position reference portions 316.sub.1 and 316.sub.2, the cable
arranging part 100 is in the predetermined position on the
substrate 310.
[0055] The N cable through holes (110.sub.1, 120.sub.1), . . . ,
(110.sub.N, 120.sub.N) are holes into and through which the coaxial
cables 220.sub.1, . . . , 220.sub.N are to be inserted and passed,
and the N cable through holes (110.sub.1, 120.sub.1), . . . ,
(110.sub.N, 120.sub.N) become perpendicular to the line of the
electrodes 320.sub.1, . . . , 320.sub.N and parallel to the
substrate 310 in the predetermined position. "In the predetermined
position" means being in a state in which the position determining
portions 160.sub.1 and 160.sub.2 are secured to the position
reference portions 316.sub.1 and 316.sub.2. The N cable through
holes (110.sub.1, 120.sub.1), . . . , (110.sub.N, 120.sub.N) are
formed with spaces left therebetween, the spaces previously set for
each of the spaces, in such a way as to correspond to the N
electrodes 320.sub.1, . . . , 320.sub.N. The cable through holes
(110.sub.n, 120.sub.n) each have a diameter which is slightly
greater than the diameter of the coaxial cable 220.sub.n such that
the coaxial cable 220.sub.n can be inserted into and passed through
the cable through holes (110.sub.n, 120.sub.n), and, as depicted in
FIGS. 4, 5A, and 5C, for example, the cable through holes
(110.sub.n, 120.sub.n) may be joined to the adjacent cable through
holes (110.sub.n-1, 120.sub.n-1) and (110.sub.n+1,
120.sub.n+1).
[0056] The ground cable through holes (130.sub.1, 140.sub.1) and
(130.sub.2, 140.sub.2) become perpendicular to the line of the
electrodes 320.sub.1, . . . , 320.sub.N and parallel to the
substrate 310 in the predetermined position and are holes into and
through which the ground cables 240.sub.1 and 240.sub.2 are to be
inserted and passed. The opening 150 is provided somewhere midway
through the N cable through holes (110.sub.1, 120.sub.1), . . . ,
(110.sub.N, 120.sub.N) and the ground cable through holes
(130.sub.1, 140.sub.1) and (130.sub.2, 140.sub.2).
[0057] As for the sizes of the cable through holes (110.sub.1,
120.sub.1), . . . , (110.sub.N, 120.sub.N) in a perpendicular
direction to the substrate 310 in the predetermined position, the
size of the cable through hole on the side where the electrodes
320.sub.1, . . . , 320.sub.N are located relative to the opening
150 is greater than the size of the cable through hole on the side
opposite to the electrodes 320.sub.1, . . . , 320.sub.N. In FIGS. 4
and 5A to 5E, in the predetermined position, the cable through hole
120.sub.n is on the side where the electrode 320.sub.n is located
relative to the opening 150 and the cable through hole 110.sub.n is
on the side opposite to the electrode 320.sub.n. FIGS. 6A and 6B
are diagrams for depicting the shapes of the cable through holes of
the cable arranging part and a position in which the opening is
formed. FIGS. 6A and 6B are diagrams of the cable through holes
(110.sub.n, 120.sub.n) viewed from the side (the side where the
cable through hole 110.sub.n is located) opposite to the electrode
320.sub.n relative to the opening 150, and a lower side is a side
close to the substrate 310. In these drawings, the adjacent cable
through holes (110.sub.n-1, 120.sub.n-1) and (110.sub.n+1,
120.sub.n+1) are omitted. FIG. 6A is a diagram depicting a first
example of the shapes of the cable through holes (110.sub.n,
120.sub.n). In the predetermined position, the distances between
the inner surfaces of the cable through holes (110.sub.n,
120.sub.n), the inner surfaces (the lower side in the drawing)
close to the substrate 310, and the substrate 310 are fixed
(equal), and, as for the inner surface (an upper side in the
drawing) away from the substrate 310, the inner surface of the
cable through hole 120.sub.n, on the side where the electrode
320.sub.n is located relative to the opening 150 is farther away
from the substrate 310 than the inner surface of the cable through
hole 110.sub.n on the side opposite to the electrode 320.sub.n.
That is, the cable through hole 120, is longer than the cable
through hole 110.sub.n in a perpendicular direction (with respect
to the substrate 310).
[0058] Moreover, FIG. 6B is a diagram depicting a second example of
the shapes of the cable through holes (110.sub.n, 120.sub.n). In
this example, the size in a horizontal direction with respect to
the substrate 310 is changed from the size in FIG. 6A. In the
example of FIG. 6B, in the predetermined position, the size of the
cable through hole 120, in a parallel direction to the substrate
310, the cable through hole 120.sub.n on the side where the
electrode 320.sub.n is located relative to the opening 150, is
smaller than the size of the cable through hole 110.sub.n on the
side opposite to the electrode 320.sub.n. In both of FIGS. 6A and
6B, insertion of the coaxial cable 220.sub.n is performed in such a
way that the coaxial cable 220.sub.n is first inserted into the
cable through hole 110.sub.n, and, since the opening 150 is present
somewhere midway through the cable through holes (110.sub.n,
120.sub.n), when the coaxial cable 220.sub.n is inserted into the
cable through hole 120, after being passed through the opening 150,
it is impossible to insert the coaxial cable 220.sub.n smoothly by
holding the end thereof. This makes it more difficult to perform
insertion into the cable through hole 120.sub.n, than insertion
into the cable through hole 110.sub.n. Furthermore, in an attaching
step (S140) which will be described later, a high degree of
accuracy of vertical positioning of the substrate 310 is not
particularly required because press is performed to solder a
central conductor 221.sub.n to the electrode 320.sub.n. On the
other hand, horizontal positioning of the substrate 310 is required
to be performed with accuracy. Therefore, the shapes depicted in
FIGS. 6A and 6B are suitable in order to make it easy to perform
insertion into the cable through hole 120.sub.n while maintaining
the accuracy of horizontal positioning.
[0059] The cable arranging part 100 is placed in the position of an
arranging part attaching portion 317 of the substrate 310. Thus, it
is necessary simply to provide a recessed portion 170 in a part of
the cable arranging part 100 in which the cable arranging part 100
makes contact with the arranging part attaching portion 317 and
adjust the distance between the cable through holes (110.sub.1,
120.sub.1), . . . , (110.sub.N, 120.sub.N) and the ground cable
through holes 140.sub.1 and 140.sub.2 and the substrate 310. This
adjustment of the distance makes it possible to adjust clearance
between external conductors 223.sub.1, . . . , 223.sub.N of the
coaxial cables 220.sub.1, . . . , 220.sub.N and conductor wires
241.sub.1 and 241.sub.2 of the ground cables 240.sub.1 and
240.sub.2 and the ground electrode 340 in the predetermined
position. This clearance simply has to be set to clearance suitable
to soldering.
[0060] A method of forming the cable connection structure has, as
depicted in FIG. 7, a cable inserting and passing step (S110), a
bonding step (S120), a terminal processing step (S130), and an
attaching step (S140). In the cable inserting and passing step
(S110), the coaxial cables 220.sub.1, . . . , 220.sub.N are
inserted into and passed through the cable through holes
(110.sub.1, 120.sub.1) . . . , (110.sub.N, 120.sub.N) of the cable
arranging part 100 from the side where the cable through holes
110.sub.1, . . . , 110.sub.N are located. Moreover, the ground
cables 240.sub.1 and 240.sub.2 are inserted into and passed through
the ground cable through holes (130.sub.1, 140.sub.1) and
(130.sub.2, 140.sub.2) from the side where the ground cable through
holes 130.sub.1 and 130.sub.2 are located.
[0061] In the bonding step (S120), an adhesive is injected from the
opening 150 in a state in which the ground cables 240.sub.1 and
240.sub.2 and the N coaxial cables 220.sub.1, . . . , 220.sub.N are
passed through the ground cable through holes (130.sub.1,
140.sub.1) and (130.sub.2, 140.sub.2) and the cable through holes
(110.sub.1, 120.sub.1), . . . , (110.sub.N, 1 20.sub.N),
respectively, whereby the ground cables 240.sub.1 and 240.sub.2 and
the N coaxial cables 220.sub.1, . . . , 220.sub.N are fixed.
Incidentally, since the ground cables 240.sub.1 and 240.sub.2 and
the N coaxial cables 220.sub.1, . . . , 220.sub.N are held by a
housing or the like which houses the substrate 310, fixation by the
adhesive only has to have strength which is required during an
assembly process. Thus, the area of a plane in which the adhesive
makes contact with the ground cables 240.sub.1 and 240.sub.2 and
the N coaxial cables 220.sub.1, . . . , 220.sub.N only has to be an
area with which strength which is required during an assembly
process can be maintained. For example, the depth of the opening
150, which is formed from the upper side of FIGS. 6A and 6B, may be
a depth to a line a (the inner surfaces of the cable through holes
110.sub.n and 120.sub.n, the inner surfaces close to the substrate
310) of FIGS. 6A and 6B, a depth to a line b (about 1/3 from the
inner surface of the cable through hole 110.sub.n, the inner
surface close to the substrate 310), or a depth to a line c (half
of the cable through hole 110.sub.n). In other words, the opening
150 is formed in a direction of the cable through holes 110.sub.n
and 120.sub.n from the side away from the substrate 310 in the
predetermined position and is not formed in a position closer to
the substrate 310 than the inner surfaces of the cable through
holes 110.sub.n, and 120.sub.n, the inner surfaces close to the
substrate 310. As a result, the effect of preventing a reduction in
the strength of the cable arranging part 100 as a result of the
side of the cable arranging part 100 closer to the substrate 310
than the cable through holes 110, and 120, becoming too thin is
also obtained.
[0062] In the terminal processing step (S130), terminal processing
of the ground cables 240.sub.1 and 240.sub.2 and the coaxial cables
220.sub.1, . . . , 220.sub.N is performed by irradiation with
laser, for example. FIGS. 8A to 8E are diagrams depicting a state
in which the coaxial cables 220.sub.1, . . . , 220.sub.N and the
ground cables 240.sub.1 and 240.sub.2 are attached to the cable
arranging part 100 and coatings 224.sub.1, . . . , 224.sub.N and
242.sub.1 and 242.sub.2 of the coaxial cables 220.sub.1, . . . ,
220.sub.N and the ground cables 240.sub.1 and 240.sub.2, the
external conductors 223.sub.1, . . . , 223.sub.N of the coaxial
cables 220.sub.1, . . . , 220.sub.N, and internal insulating layers
222.sub.1, . . . , 222.sub.N of the coaxial cables 220.sub.1, . . .
, 220.sub.N are removed. In the state depicted in FIGS. 8A to 8E,
central conductors 221.sub.1, . . . , 221.sub.N of the coaxial
cables 220.sub.1, 220.sub.N are in a straight state. In the
terminal processing step (S130), as depicted in FIG. 9, the central
conductors 221.sub.1, . . . , 221 .sub.N are curved so as to be
closer to the substrate 310 to the same extent as the external
conductors 223.sub.1, . . . , 223.sub.N. As a result of the central
conductors 221.sub.1, . . . , 221.sub.N being curved in this way,
the conductor wires 241.sub.1 and 241.sub.2 of the ground cables
240.sub.1 and 240.sub.2 and the external conductors 223.sub.1, . .
. , 223.sub.N and the central conductors 221.sub.1, . . . ,
221.sub.N of the coaxial cables 220.sub.1, . . . , 220.sub.N are in
a state in which the conductor wires 241.sub.1 and 241.sub.2 of the
ground cables 240.sub.1 and 240.sub.2 and the external conductors
223.sub.1, . . . , 223.sub.N and the central conductors 221.sub.1,
. . . , 221.sub.N of the coaxial cables 220.sub.1, . . . ,
220.sub.N are in contact with almost the same plane.
[0063] In the attaching step (S140), the position determining
portions 160.sub.1 and 160.sub.2 are secured to the position
reference portions 316.sub.1 and 316.sub.2. Then, soldering of the
conductor wires 241.sub.1 and 241.sub.2 of the ground cables
240.sub.1 and 240.sub.2 and the external conductors 223.sub.1, . .
. , 223.sub.N and the central conductors 221.sub.1, . . . , 221
.sub.N of the coaxial cables 220.sub.1, . . . , 220.sub.N is
performed. More specifically, the conductor wires 241.sub.1 and
241.sub.2 of the ground cables 240.sub.1 and 240.sub.2 and the
external conductors 223.sub.1, ..., 223.sub.N of the coaxial cables
220.sub.1, . . . , 220.sub.N are soldered to the ground electrode
340, and the central conductor 221.sub.n of the coaxial cable
220.sub.n is soldered to the electrode 320.sub.n. As a result of
such processing, in a state in which the cable arranging part 100
is placed in the predetermined position, the external conductors
223.sub.1, . . . , 223.sub.N of the coaxial cables 220.sub.1, . . .
, 220.sub.N are connected to the ground electrode 340, each of the
central conductors 221.sub.1, . . . , 221.sub.N of the coaxial
cables 220.sub.1, . . . , 220.sub.N is connected to any one of the
N electrodes 320.sub.1, . . . , 320.sub.N, and the conductor wires
241.sub.1 and 241.sub.2 of the ground cables 240.sub.1 and
240.sub.2 are connected to the ground electrode 340.
[0064] With the cable connection structure of the first embodiment,
since the cable arranging part 100 has a fixed shape, it is
possible to perform terminal processing operations such as
inserting and passing the coaxial cables 220.sub.1, . . . ,
220.sub.N into and through the cable arranging part 100 and
removing the coatings 224.sub.1, . . . , 224.sub.N with ease.
Moreover, by securing the position determining portions 160.sub.1
and 160.sub.2 to the position reference portions 316.sub.1 and
316.sub.2, it is possible to determine the position of the cable
arranging part 100 on the substrate 310. Furthermore, as for the
sizes of the cable through holes (110.sub.n, 120.sub.n) in a
perpendicular direction to the substrate 310 in the predetermined
position, the size of the cable through hole 120.sub.n on the side
where the electrode 320.sub.n is located relative to the opening
150 is greater than the size of the cable through hole 110.sub.n on
the side opposite to the electrode 320.sub.n, which makes it easy
to perform insertion of the coaxial cables 220.sub.1, . . . ,
220.sub.N even when the opening 150 is provided. Therefore,
processing from a process of arranging the plurality of coaxial
cables 220.sub.1, . . . , 220.sub.N covered with the coatings
224.sub.1, . . . , 224.sub.N in a plane to a process of connecting
the coaxial cables 220.sub.1, . . . , 220.sub.N to the electrodes
320.sub.1, . . . , 320.sub.N on the substrate 310 becomes easier
than the existing processing.
Second Embodiment
[0065] The first embodiment deals with a coaxial cable. In a second
embodiment, a cable connection structure having a cable arranging
part for arranging M (M is an integer greater than or equal to 2
and m is an integer greater than or equal to 1 but smaller than or
equal to M) signal cables, each being a coated single-core
conductor wire, in a plane parallel to a substrate and connecting
the signal cables to electrodes on the substrate will be described.
FIGS. 13A to 13C are diagrams depicting the structure of the cable
arranging part of the second embodiment in detail. FIGS. 14A and
14B are diagrams depicting a state in which the signal cables and
power-supply cables (which are coated single-core conductor wires)
are fixed with an adhesive in a state in which the signal cables
and the power-supply cables are inserted into and passed through
the cable arranging part and the signal cables and the power-supply
cables are attached to the substrate after being subjected to
terminal processing. Incidentally, the power-supply cables may not
be provided or any one of the signal cables may be used as a power
or grounding cable. In order to explain the orientation of the
drawings depicted in FIGS. 13A to 13C and FIGS. 14A and 14B, a face
of the cable arranging part close to the ends of the signal cables
and the power-supply cables (a face close to the electrodes when
the cable arranging part is attached to the substrate) is regarded
as a front face. In this case, FIG. 13A is a rear view, FIG. 13B is
a plan view, and FIG. 13C is a front view. FIG. 14A is a left-side
view and FIG. 14B is a plan view. Incidentally, a signal cable
420.sub.m is a conductor wire 421.sub.m coated with a coating
422.sub.m. Power-supply cables 440.sub.1 are a conductor wire
441.sub.1 coated with a coating 442.sub.1. Power-supply cables
440.sub.2 are also a conductor wire coated with a coating.
[0066] A substrate 310 comprises M electrodes 325.sub.1, . . . ,
325.sub.M, a power-supply electrode 345, and position reference
portions 318.sub.1 and 318.sub.2. The M electrodes 325.sub.1, . . .
, 325.sub.M and the power-supply electrode 345 are arranged in a
line with spaces left therebetween, the spaces previously set for
each of the spaces. The position reference portions 318.sub.1 and
318.sub.2 are portions serving as the reference with respect to
which the positional relationship on the substrate 310 is
determined.
[0067] A cable arranging part 500 has a fixed shape and comprises
position determining portions 560.sub.1 and 560.sub.2, M cable
through holes (510.sub.1, 520.sub.1), . . . , (510.sub.M,
520.sub.M), power-supply cable through holes 530.sub.1 and
530.sub.2, and an opening 550. In a state in which the position
determining portions 560.sub.1 and 560.sub.2 are secured to the
position reference portions 318.sub.1 and 318.sub.2, the cable
arranging part 500 is in a predetermined position on the substrate
310. Incidentally, as in the case of the first embodiment, it is
necessary simply to provide the position reference portions
318.sub.1 and 318.sub.2 as holes provided in the substrate 310,
provide the position determining portions 560.sub.1 and 560.sub.2
as protrusions which are inserted into the position reference
portions 318.sub.1 and 318.sub.2, and make the height of the
protrusions lower than the thickness of the substrate 310.
[0068] The M cable through holes (510.sub.1, 520.sub.1), . . . ,
(510.sub.M, 520.sub.M) are holes into and through which the signal
cables 420.sub.1, . . . , 420.sub.M are to be inserted and passed,
and the M cable through holes (510.sub.1, 520.sub.1), . . . ,
(510.sub.M, 520.sub.M) become perpendicular to the line of the
electrodes 325.sub.1, . . . , 325.sub.M and parallel to the
substrate 310 in the predetermined position. The power-supply cable
through holes 530.sub.1 and 530.sub.2 are holes into and through
which the power-supply cables 440.sub.1 and 440.sub.2 are to be
inserted and passed. The opening 550 is provided somewhere midway
through the M cable through holes (510.sub.1, 520.sub.1), . . . ,
(510.sub.M, 520.sub.M).
[0069] As for the sizes of the cable through holes (510.sub.m,
520.sub.m) in a perpendicular direction to the substrate 310 in the
predetermined position, the size of the cable through hole
520.sub.m on the side where the electrode 325.sub.m is located
relative to the opening 550 is greater than the size of the cable
through hole 510.sub.m on the side opposite to the electrode
325.sub.m. Incidentally, as described in the first embodiment by
using FIGS. 6A and 6B, a configuration only has to be adopted in
which, in the predetermined position, the distances between the
inner surfaces of the cable through holes (510.sub.m, 520.sub.m),
the inner surfaces close to the substrate 310, and the substrate
310 are fixed, and, as for the inner surface away from the
substrate 310, the inner surface of the cable through hole
520.sub.m on the side where the electrode 325.sub.m is located
relative to the opening 550 is farther away from the substrate 310
than the inner surface of the cable through hole 510.sub.m on the
side opposite to the electrode 325.sub.m. Furthermore, as for the
sizes of the cable through holes (510.sub.m, 520.sub.m) in a
parallel direction to the substrate 310 in the predetermined
position, the size of the cable through hole 520.sub.m on the side
where the electrode 325.sub.m is located relative to the opening
550 may be made smaller than the size of the cable through hole
510.sub.m on the side opposite to the electrode 325.sub.m. The
reason why such a shape is suitable is the same as that described
in the first embodiment. Moreover, the description given in the
first embodiment about the depth of the opening 150 which is
adopted in the formation thereof applies to the depth of the
opening 550 which is adopted in the formation thereof.
[0070] The procedures of the cable connecting method are the same
as the procedures of the first embodiment (FIG. 7). Therefore, the
M signal cables 420.sub.1, . . . , 420.sub.M are in a state in
which the M signal cables 420.sub.1, . . . , 420.sub.M are fixed
with an adhesive injected from the opening 550 in a state in which
the M signal cables 420.sub.1, . . . , 420.sub.M are inserted into
the cable through holes 510.sub.1, . . . , 510.sub.M on the side
opposite to the electrodes 325.sub.1, . . . , 325.sub.M and passed
therethrough in the predetermined position. In a state in which the
cable arranging part 500 is placed in the predetermined position,
the conductor wires 421.sub.m of the signal cables 420.sub.m are
connected to the electrode 325.sub.m.
[0071] A recessed portion 570 plays the same role as the recessed
portion 170 of the first embodiment. A portion of the cable
connection structure of the second embodiment, the portion which
has not been described above, is the same as that of the
counterpart of the first embodiment. Since the cable connection
structure of the second embodiment has the above-described
configuration, as in the case of the first embodiment, processing
from a process of arranging the plurality of signal cables
420.sub.1, . . . , 420.sub.M covered with the coatings 422.sub.1, .
. . , 422.sub.M in a plane to a process of connecting the signal
cables 420.sub.1, . . . , 420.sub.M to the electrodes 325.sub.1, .
. . , 325.sub.M on the substrate 310 becomes easier than the
existing processing.
Third Embodiment
[0072] A third embodiment is an embodiment obtained by combining
the first embodiment and the second embodiment. In FIGS. 15A to
15D, the structure of a cable arranging part of the third
embodiment is depicted. FIGS. 16A and 16B are diagrams depicting
how an attaching step (S140) which is performed in forming the
cable arranging structure of the third embodiment is performed.
FIG. 16A is a diagram depicting a state before the cable arranging
parts 100 and 500 are attached to the substrate 310, and FIG. 16B
is a diagram depicting a state after the cable arranging parts 100
and 500 are attached to the substrate 310. In order to explain the
orientation of the drawings depicted in FIGS. 15A to 15D, a face of
the cable arranging part close to the ends of the coaxial cables
and the ground cables (a face close to the electrodes when the
cable arranging part is attached to the substrate) is regarded as a
rear face (it is to be noted that a front face and a rear face are
opposite in direction to the front face and the rear face in the
description of the first and second embodiments). FIG. 15A is a
plan view, FIG. 15B is a front view, FIG. 15C is a bottom view, and
FIG. 15D is a left-side view.
[0073] The third embodiment differs from the first and second
embodiments in that fitting holes 180.sub.1 and 180.sub.2 are also
formed in the cable arranging part 100 and fitting protrusions
181.sub.1 and 181.sub.2 are also formed in the cable arranging part
500. The cable arranging parts 100 and 500, the coaxial cables
220.sub.1, . . . , 220.sub.N, the ground cables 240.sub.1 and
240.sub.2, the signal cables 420.sub.1, . . . , 420.sub.M, and the
power-supply cables 440.sub.1 and 440.sub.2 are the same as those
of the first and second embodiments.
[0074] In the substrate 310, position reference portions 316.sub.1
and 316.sub.2 and position reference portions 318.sub.1 and
318.sub.2 are formed, and the cable arranging part 100 and the
cable arranging part 500 are placed on different surfaces of the
substrate 310. A surface on which electrodes 320.sub.1, . . . ,
320.sub.N and 340 are formed is different from a surface on which
electrodes 325.sub.1, . . . , 325.sub.M and a power-supply
electrode 345 are formed. In the example of FIGS. 16A and 16B, the
position reference portions 316.sub.1, 316.sub.2, 318.sub.1, and
318.sub.2 are holes formed in the substrate 310. Position
determining portions 160.sub.1, 160.sub.2, 560.sub.1, and 560.sub.2
are protrusions which are inserted into the position reference
portions 316.sub.1, 316.sub.2, 318.sub.1, and 318.sub.2,
respectively, and the height of the protrusions is lower than the
thickness of the substrate 310. Therefore, the position determining
portions 160.sub.1, 160.sub.2, 560.sub.1, and 560.sub.2 do not
become hindrances when the substrate 310 is sandwiched between the
cable arranging part 100 and the cable arranging part 500.
Moreover, sandwiching the substrate 310 between the cable arranging
part 100 and the cable arranging part 500 causes not only the
position determining portions 160.sub.1, 160.sub.2, 560.sub.1, and
560.sub.2 to be inserted into the position reference portions
316.sub.1, 316.sub.2, 318.sub.1, and 318.sub.2, but also the
fitting holes 180.sub.1 and 180.sub.2 and the fitting protrusions
181.sub.1 and 181.sub.2 to fit together, and fixation is completed.
Then, soldering is performed, whereby a cable connection structure
of the third embodiment is formed.
[0075] A portion of the cable connection structure of the third
embodiment, the portion which has not been described above, is the
same as that of the counterparts of the first and second
embodiments. Since the cable connection structure of the third
embodiment has the above-described configuration, as in the case of
the first and second embodiments, processing from a process of
arranging the plurality of coaxial cables 220.sub.1, . . . ,
220.sub.N covered with the coatings 224.sub.1, . . . , 224.sub.N in
a plane and a process of arranging the plurality of signal cables
420.sub.1, . . . , 420.sub.M covered with the coatings 422.sub.1,
422.sub.M in a plane to a process of connecting the coaxial cables
220.sub.1, . . . , 220.sub.N and the signal cables 420.sub.1, . . .
, 420.sub.M to the electrodes 320.sub.1, . . . , 320.sub.N and the
electrodes 325.sub.1, . . . , 325.sub.M, respectively, on the
substrate 310 becomes easier than the existing processing.
[0076] The foregoing description of the embodiments of the
invention has been presented for the purpose of illustration and
description. It is not intended to be exhaustive and to limit the
invention to the precise form disclosed. Modifications or
variations are possible in light of the above teaching. The
embodiment was chosen and described to provide the best
illustration of the principles of the invention and its practical
application, and to enable one of ordinary skill in the art to
utilize the invention in various embodiments and with various
modifications as are suited to the particular use contemplated. All
such modifications and variations are within the scope of the
invention as determined by the appended claims when interpreted in
accordance with the breadth to which they are fairly, legally, and
equitably entitled.
* * * * *