U.S. patent application number 14/643309 was filed with the patent office on 2016-01-21 for shielding connector.
The applicant listed for this patent is LOTES CO., LTD. Invention is credited to Zhi Lin Chen, Ted Ju.
Application Number | 20160020537 14/643309 |
Document ID | / |
Family ID | 52772799 |
Filed Date | 2016-01-21 |
United States Patent
Application |
20160020537 |
Kind Code |
A1 |
Ju; Ted ; et al. |
January 21, 2016 |
SHIELDING CONNECTOR
Abstract
A shielding connector includes an electrical connector body and
a shielding casing. The electrical connector body includes a main
body for being mounted onto a circuit board, and a mating portion
extending from the main body and used for mating with a mating
connector. The shielding casing wraps the periphery of the main
body, and has a mounting portion fixed onto the circuit board. The
mounting portion includes a first soldering portion for being fixed
to a solder pad on a surface of the circuit board in a surface
mounting manner, and a second soldering portion. The second
soldering portion has an insertion portion for being soldered into
a soldering hole on the circuit board, and a contact portion for
being soldered to a solder plate surrounding the soldering hole on
the surface of the circuit board. The contact portion and the first
soldering portion are connected.
Inventors: |
Ju; Ted; (Keelung, TW)
; Chen; Zhi Lin; (Keelung, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
LOTES CO., LTD |
Keelung |
|
TW |
|
|
Family ID: |
52772799 |
Appl. No.: |
14/643309 |
Filed: |
March 10, 2015 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
62024728 |
Jul 15, 2014 |
|
|
|
Current U.S.
Class: |
439/83 |
Current CPC
Class: |
H01R 24/60 20130101;
H01R 24/00 20130101; H01R 12/707 20130101; H01R 2107/00 20130101;
H01R 13/6594 20130101; H01R 13/6477 20130101; H01R 12/00 20130101;
H01R 24/78 20130101; B29C 63/00 20130101; H01R 43/18 20130101; H01R
12/712 20130101; H01R 13/6585 20130101 |
International
Class: |
H01R 12/71 20060101
H01R012/71; H01R 12/70 20060101 H01R012/70; H01R 13/6594 20060101
H01R013/6594 |
Claims
1. A shielding connector, comprising: an electrical connector body,
comprising a main body for being mounted onto a circuit board, and
a mating portion extending from the main body for mating with a
mating connector; and a shielding casing, wrapping a periphery of
the main body, and having a mounting portion for being fixed onto
the circuit board, the mounting portion comprising: a first
soldering portion, for being fixed to a solder pad on a surface of
the circuit board in a surface mounting manner; and a second
soldering portion, having an insertion portion for being soldered
and fixed into a soldering hole provided on the circuit board, and
a contact portion for being soldered and fixed to a solder plate
surrounding the soldering hole on the surface of the circuit board,
the contact portion and the first soldering portion being
connected.
2. The shielding connector of claim 1, wherein the mounting portion
is disposed at a plate edge of the shielding casing.
3. The shielding connector of claim 1, wherein the shielding casing
comprises at least one first side wall extending toward the circuit
board along a side wall of the main body, and the mounting portion
is disposed at a plate edge of the first side wall that is close to
the circuit board.
4. The shielding connector of claim 3, wherein a plurality of first
soldering portions are disposed at the plate edge of the first side
wall, and one second soldering portion is disposed at each of two
opposite ends of each of the first soldering portions.
5. The shielding connector of claim 3, wherein the shielding casing
further comprises at least one second side wall extending toward
the circuit board, the second side wall and the first side wall are
adjacent and jointly wrap the side wall of the main body, and a
third soldering portion used for being fixed onto the surface of
the circuit board in the surface mounting manner is formed at a
plate edge of the second side wall close to the circuit board.
6. The shielding connector of claim 3, wherein the first side wall
extends along the side wall of the main body to encircle the entire
main body, and the mounting portion encircles the periphery of the
main body.
7. The shielding connector of claim 1, wherein a reserved portion
is depressed from the mounting portion toward a direction away from
the circuit board, and a gap exists between the reserved portion
and the circuit board to reserve a space for a conducting circuit
on the circuit board.
8. The shielding connector of claim 1, wherein the mounting portion
further comprises a fourth soldering portion for being fixed onto
the surface of the circuit board in the surface mounting manner,
and the fourth soldering portion is connected to neither the first
soldering portion nor the second soldering portion.
9. The shielding connector of claim 1, wherein one second soldering
portion is disposed at each of two opposite ends of the first
soldering portion, and each of the second soldering portions has
one contact portion connected to the first soldering portion.
10. The shielding connector of claim 1, wherein the second
soldering portion comprises two contact portions located
respectively at two opposite sides of the insertion portion, and
each of the contact portions is connected to one first soldering
portion.
11. The shielding connector of claim 1, further comprising: a metal
casing sheathed on the mating portion; and a shielding sheet
disposed on an outer side surface of the mating portion,
comprising: an elastic sheet bending from one end of the shielding
sheet and entering a mating cavity to contact a metal housing of
the mating connector, wherein the mating cavity is formed in the
mating portion for the mating connector to be inserted therein; and
an arm portion bending from another end of the shielding sheet
toward the metal casing and elastically urging the metal
casing.
12. The shielding connector of claim 11, wherein the elastic sheet
comprises an opening at a middle portion thereof, and the opening
widens gradually from a root portion of the elastic sheet toward a
free end of the elastic sheet.
13. The shielding connector of claim 11, wherein the electrical
connector body comprises: an insulating seat, having a plurality of
reserved slots running through a surface thereof; and a plurality
of conducting terminals disposed in the insulating seat, each
having a conducting portion bending from one end thereof for
electrically connecting the mating connector, wherein the reserved
slots correspond to free ends of the conducting portions, and the
shielding sheet comprises a through-hole corresponding to the
reserved slots.
14. The shielding connector of claim 13, further comprising an
insulating sheet covering an outer side of the shielding sheet, the
insulating sheet correspondingly covering the through-hole of the
shielding sheet.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims priority to and the benefit of,
pursuant to 35 U.S.C. .sctn.119(e), U.S. provisional patent
application Ser. No. 62/024,728, filed Jul. 15, 2014, entitled
"ELECTRICAL CONNECTOR," by Ted Ju, which is incorporated herein in
its entirety by reference.
[0002] Some references, if any, which may include patents, patent
applications and various publications, may be cited and discussed
in the description of this invention. The citation and/or
discussion of such references, if any, is provided merely to
clarify the description of the present invention and is not an
admission that any such reference is "prior art" to the invention
described herein. All references listed, cited and/or discussed in
this specification are incorporated herein by reference in their
entireties and to the same extent as if each reference was
individually incorporated by reference.
FIELD OF THE INVENTION
[0003] The present invention relates to an electrical connector,
and more particularly to a shielding connector that can effectively
improve the shielding effect.
BACKGROUND OF THE INVENTION
[0004] An electrical connector in the related art generally
includes an insulating body, conducting terminals disposed in the
insulating body, and a shielding casing wrapping the insulating
body. In order to conduct an electromagnetic interference signal of
a conducting terminal to a grounding path to shield electromagnetic
interference, the shielding casing is generally provided with one
or more soldering pins soldered to a solder pad of a circuit board.
The soldering pins of a DIP type are generally soldered alternately
into through-holes of the circuit board in a through hole
technology and conducted to the solder pad; or soldering pins of a
surface mounting technology (SMT) type bend on the shielding
casing, and are soldered to the solder pad of the circuit board in
a surface mounting manner; or soldering pins of both the DIP type
and the SMT type are used. In the foregoing structure, multiple
soldering pins of the DIP type are spaced from each other, multiple
soldering pins of the SMT type are also spaced by a distance, and
the soldering pins of the DIP type and the soldering pins of the
SMT type are also disposed independently from each other.
[0005] However, when the electrical connector of this structure is
soldered to the circuit board, since the soldering pins are spaced
from each other or spaced by a distance or are independent from
each other, multiple gaps exist at a position where the shielding
casing and the circuit board are connected, causing electromagnetic
interference signals to leak from these gaps, so that the shielding
effect of the shielding casing deteriorates.
[0006] Therefore, a heretofore unaddressed need exists in the art
to address the aforementioned deficiencies and inadequacies.
SUMMARY OF THE INVENTION
[0007] In one aspect, the present invention is directed to a
shielding connector that can effectively improve the shielding
effect.
[0008] In one embodiment, a shielding connector includes an
electrical connector body and a shielding casing. The electrical
connector body includes a main body used for being mounted onto a
circuit board, and a mating portion extending from the main body
and used for mating with a mating connector. The shielding casing
wraps the periphery of the main body, and has a mounting portion
fixed onto the circuit board. The mounting portion includes a first
soldering portion and a second soldering portion. The first
soldering portion is used for being fixed to a solder pad on a
surface of the circuit board in a surface mounting manner. The
second soldering portion has an insertion portion used for being
soldered and fixed into a soldering hole provided on the circuit
board, and a contact portion used for being soldered and fixed to a
solder plate surrounding the soldering hole on the surface of the
circuit board. The contact portion and the first soldering portion
are connected.
[0009] In one embodiment, the mounting portion is disposed at a
plate edge of the shielding casing.
[0010] In one embodiment, the shielding casing includes at least
one first side wall extending toward the circuit board along a side
wall of the main body. The mounting portion is disposed at a plate
edge of the first side wall close to the circuit board. Multiple
first soldering portions are disposed at the plate edge of the
first side wall. One second soldering portion is disposed at each
of two opposite ends of each of the first soldering portions.
[0011] In one embodiment, the shielding casing further includes at
least one second side wall extending toward the circuit board. The
second side wall and the first side wall are adjacent and jointly
wrap the side wall of the main body, and a third soldering portion
used for being fixed onto the surface of the circuit board in the
surface mounting manner is formed at a plate edge of the second
side wall close to the circuit board.
[0012] In one embodiment, the first side wall extends along the
side wall of the main body to encircle the entire main body, and
the mounting portion encircles the periphery of the main body.
[0013] In one embodiment, a reserved portion is depressed from the
mounting portion toward a direction away from the circuit board,
and a gap exists between the reserved portion and the circuit board
to reserve a space for a conducting circuit on the circuit
board.
[0014] In one embodiment, the mounting portion further includes a
fourth soldering portion used for being fixed onto the surface of
the circuit board in the surface mounting manner, and the fourth
soldering portion is connected to neither the first soldering
portion nor the second soldering portion.
[0015] In one embodiment, one second soldering portion is disposed
at each of two opposite ends of the first soldering portion, and
each of the second soldering portions has one contact portion
connected to the first soldering portion.
[0016] In one embodiment, the second soldering portion includes two
contact portions separately located at two opposite sides of the
insertion portion, and each of the contact portions is connected to
one first soldering portion.
[0017] In one embodiment, the mating portion is sheathed in a metal
casing. A mating cavity for the mating connector to be inserted
therein is formed in the mating portion. A shielding sheet is
disposed on an outer side surface of the mating portion. An elastic
sheet bends from one end of the shielding sheet and enters the
mating cavity to contact a metal housing of the mating connector.
An arm portion bends from another end of the shielding sheet toward
the metal casing and elastically urges the metal casing. An opening
is provided at a middle portion of the elastic sheet, and the
opening widens gradually from a root portion of the elastic sheet
toward a free end of the elastic sheet.
[0018] The electrical connector body includes an insulating seat
and multiple conducting terminals disposed in the insulating seat.
Each conducting terminal has a conducting portion bending from one
end thereof and used for electrically connecting the mating
connector. Multiple reserved slots are provided through a surface
of the insulating seat and correspond to free ends of the
conducting portions. A through-hole is provided at a position of
the shielding sheet corresponding to the reserved slots. An outer
side of the shielding sheet is covered with an insulating sheet,
and the insulating sheet correspondingly covers the through-hole of
the shielding sheet.
[0019] Compared with the related art, in certain embodiments of the
present invention, a first soldering portion of a surface mounting
type and a second soldering portion of a DIP type are disposed on a
mounting portion of a shielding casing and connected, and the two
are coherently soldered to a circuit board, and therefore a gap
between the mounting portion of the shielding casing and the
circuit board can be effectively reduced, so as to reduce the risk
of leaking electromagnetic interference signals, and improve the
shielding effect.
[0020] These and other aspects of the present invention will become
apparent from the following description of the preferred embodiment
taken in conjunction with the following drawings, although
variations and modifications therein may be effected without
departing from the spirit and scope of the novel concepts of the
disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings illustrate one or more embodiments
of the invention and together with the written description, serve
to explain the principles of the invention. Wherever possible, the
same reference numbers are used throughout the drawings to refer to
the same or like elements of an embodiment.
[0022] FIG. 1 is a schematic three-dimensional view of a first
embodiment according to the present invention.
[0023] FIG. 2 is a schematic exploded view of FIG. 1.
[0024] FIG. 3 is a schematic view of elements in FIG. 2 viewed from
another angle and a partial enlarged view thereof.
[0025] FIG. 4 is a schematic further exploded view of the elements
in FIG. 2 and a partial enlarged view thereof.
[0026] FIG. 5 is a sectional view of FIG. 1.
[0027] FIG. 6 is a schematic view of a circuit board.
[0028] FIG. 7 is a schematic three-dimensional exploded view of a
second embodiment according to the present invention and a partial
enlarged view thereof.
DETAILED DESCRIPTION OF THE INVENTION
[0029] The present invention is more particularly described in the
following examples that are intended as illustrative only since
numerous modifications and variations therein will be apparent to
those skilled in the art. Various embodiments of the invention are
now described in detail. Referring to the drawings, like numbers
indicate like components throughout the views. As used in the
description herein and throughout the claims that follow, the
meaning of "a", "an", and "the" includes plural reference unless
the context clearly dictates otherwise. Also, as used in the
description herein and throughout the claims that follow, the
meaning of "in" includes "in" and "on" unless the context clearly
dictates otherwise. Moreover, titles or subtitles may be used in
the specification for the convenience of a reader, which shall have
no influence on the scope of the present invention.
[0030] It will be understood that when an element is referred to as
being "on" another element, it can be directly on the other element
or intervening elements may be present therebetween. In contrast,
when an element is referred to as being "directly on" another
element, there are no intervening elements present. As used herein,
the term "and/or" includes any and all combinations of one or more
of the associated listed items.
[0031] Furthermore, relative terms, such as "upper" and "lower,"
"top" and "bottom," "front" and "rear," "left" and "right," may be
used herein to describe one element's relationship to another
element as illustrated in the Figures. It will be understood that
relative terms are intended to encompass different orientations of
the device in addition to the orientation depicted in the Figures.
For example, if the device in one of the figures is turned over,
elements described as being on the "lower" side of other elements
would then be oriented on "upper" sides of the other elements. The
exemplary term "lower", can therefore, encompasses both an
orientation of "lower" and "upper," depending of the particular
orientation of the figure. Similarly, if the device in one of the
figures is turned over, elements described as "below" or "beneath"
other elements would then be oriented "above" the other elements.
The exemplary terms "below" or "beneath" can, therefore, encompass
both an orientation of above and below.
[0032] As used herein, "around", "about" or "approximately" shall
generally mean within 20 percent, preferably within 10 percent, and
more preferably within 5 percent of a given value or range.
Numerical quantities given herein are approximate, meaning that the
term "around", "about" or "approximately" can be inferred if not
expressly stated.
[0033] As used herein, the terms "comprising", "including",
"carrying", "having", "containing", "involving", and the like are
to be understood to be open-ended, i.e., to mean including but not
limited to. The description will be made as to the embodiments of
the present invention in conjunction with the accompanying drawings
in FIGS. 1-7. In accordance with the purposes of this invention, as
embodied and broadly described herein, this invention, in one
aspect, relates to a shielding connector.
[0034] As shown in FIG. 1 and FIG. 2, a shielding connector of a
first embodiment of the present invention includes an electrical
connector body 1, a shielding casing 2, and a metal casing 3. The
electrical connector body 1 includes a main body 10 used for being
mounted onto a circuit board 4, and a mating portion 11 extending
from the main body 10 and used for mating with a mating connector
(not shown). The periphery of the main body 10 is wrapped with the
shielding casing 2, and the periphery of the mating portion 11 is
wrapped with the metal casing 3.
[0035] Referring to FIG. 2 and FIG. 6, the circuit board 4 includes
multiple solder pads 40 in a strip shape, multiple soldering holes
41 located on extension lines of the solder pads 40, solder plates
42 each surrounding one of the soldering holes 41, and two rows of
solder pads 43 (including signal solder pads and grounding solder
pads) disposed at the center of the surface of the circuit board 4.
A copper foil is disposed in each soldering hole 41. Each of the
solder plate 42 is in communication with the corresponding solder
pad 40. Both the solder plate 42 and the solder pad 40 are
grounded. The two rows of solder pads 43 are used for electrically
connecting the electrical connector body 1.
[0036] As shown in FIG. 2 and FIG. 4, the electrical connector body
1 includes an insulating seat 5 and multiple conducting terminals 6
disposed in the insulating seat 5.
[0037] Referring to FIG. 4 and FIG. 5, the multiple conducting
terminals 6 are disposed in an upper row and a lower row, and fixed
to an insulating member 60 in an insert molding manner to form an
upper terminal group and a lower terminal group. Each conducting
terminal 6 has a conducting portion 61 bending from a front end
thereof, and a soldering pin 62 formed at a rear end thereof and
connected to one of the solder pads 43 on the surface of the
circuit board 4. More specifically, the front ends of the upper row
of conducting terminals 6 bend downward to form the conducting
portions 61, and free ends of the upper row of conducting terminals
6 are warped upward. The front ends of the lower row of conducting
terminals 6 bend upward to form the conducting portions 61, and
free ends of the lower row of conducting terminals 6 are extended
downward. After being snap-fit together using positioning
structures disposed on respective insulating members 60, the upper
terminal group and the lower terminal group are mounted into the
insulating seat 5.
[0038] As shown in FIG. 4 and FIG. 5, the insulating seat 5
includes a base 50 and an accommodating portion 51 extending
forward from the base 50 and perpendicular to the base 50. The base
50 is roughly rectangular, and includes a front end surface, an
upper side wall, a lower side wall, a left side wall and a right
side wall. The accommodating portion 51 is in a cylinder shape, and
is formed with a mating cavity 52 for the mating connector to be
inserted therein. To further shield an interference signal at the
mating portion 11, a groove 53 is depressed from each of an upper
surface and a lower surface of the accommodating portion 51, and a
shielding sheet 7 made of metal is mounted in the groove 53.
Multiple elastic sheets 70 bend from a front end of the shielding
sheet 7, and multiple through-holes are provided at corresponding
positions on the accommodating portion 51 and are provided for the
elastic sheets 70 to enter the mating cavity 52 to contact a metal
housing (not shown) of the mating connector. An opening 71 is
provided at a middle portion of each of the elastic sheets 70, so
as to enhance elasticity of the elastic sheet 70. The opening 71
widens gradually from a root portion of the elastic sheet 70 toward
a free end of the elastic sheet 70, so as to disperse a stress
existed when the elastic sheet 70 is pressed. An arm portion 72
bends from a rear end of the shielding sheet 7 toward the metal
casing 3, and elastically urges the metal casing 3, so that the
shielding sheet 7 and the metal casing 3 form a conducted grounding
line. Multiple reserved slots 54 are further depressed from each
groove 53 toward the mating cavity 52. The reserved slot 54 runs
through a surface of the accommodating portion 51, is in
communication with the mating cavity 52, and is used for the free
ends of the corresponding conducting portion 61 to correspondingly
enters when the conducting portion 61 contacts the mating
connector, so as to ensure that the conducting portion 61 can
elastically move freely.
[0039] To reserve space for the conducting portion 61, and prevent
the shielding sheet 7 and the conducting portion 61 from being
short-circuited, a through-hole 73 is provided at the center of the
shielding sheet 7 corresponding to the reserved slot 54. The outer
side of the shielding sheet 7 is covered with an insulating sheet
8. The insulating sheet 8 correspondingly covers the through-hole
73 of the shielding sheet 7, and is used for isolating the
conducting portion 61, so as to prevent the conducting portion 61
and the metal casing 3 from being short-circuited.
[0040] As shown in FIG. 2 and FIG. 4, the metal casing 3 is sleeved
over the accommodating portion 51, and the metal casing 3 is made
by punching a metal plate material. The metal casing 3 is in a
cylinder shape corresponding to the accommodating portion 51. The
metal casing 3 includes two opposite arc-shaped walls 31, two
opposite plate walls 32 connected to the two arc-shaped walls 31,
and a fixing sheet 33 bends and extends from a rear end of the
plate wall 32. The plate wall 32 elastically urges the arm portion
72 of the shielding sheet 7, and the fixing sheet 33 is fixed to
the shielding casing 2 in a spot welding manner, so as to ensure a
good connection between the metal casing 3 and the shielding casing
2 while shielding the mating portion 11 of the electrical connector
body 1. In other embodiments, the metal casing 3 and the shielding
casing 2 may be integrally formed. In one embodiment, the
accommodating portion 51 is not required to be sheathed with the
metal casing 3. For example, the accommodating portion 51 may be
covered by the metal housing of the mating connector when the
mating connector is inserted into the accommodating portion 51. The
present invention is not limited thereto.
[0041] Referring to FIG. 1, FIG. 2 and FIG. 4, the shielding casing
2 is formed by punching a metal plate material, and wraps the
periphery of the main body 10. More specifically, the shielding
casing 2 is sleeved over the base 50 of the insulating seat 5, and
includes a front wall 20 wrapping a front end surface of the base
50, and two first side walls 21 extending along an upper side wall
and a lower side wall of the base 50 toward the circuit board 4,
and two second side walls 22 extending along a left side wall and a
right side wall of the base 50 toward the circuit board 4. The
first side walls 21 and the second side walls 22 are adjacent and
jointly wrap four side walls of the base 50, so as to shield the
entire main body 10.
[0042] As shown in FIG. 2 and FIG. 3, a plate edge of the first
side wall 21 close to the circuit board 4 is formed with a mounting
portion 23 for being fixed onto the circuit board 4. The mounting
portion 23 includes a first soldering portion 231 and a second
soldering portion 232. The first soldering portion 231 is fixed to
the solder pad 40 on the surface of the circuit board 4 in a
surface mounting manner. The second soldering portion 232 has an
insertion portion 2320 used for being soldered and fixed into the
soldering hole 41 provided on the circuit board 4, and a contact
portion 2321 used for being soldered and fixed to the solder plate
42 surrounding the soldering hole 41 on the surface of the circuit
board 4. The contact portion 2321 and the first soldering portion
231 are connected. In this embodiment, plate edge of each first
side wall 21 has two first soldering portions 231 not adjacent to
each other. Each of the two opposite ends of each first soldering
portion 231 is disposed with one second soldering portion 232. The
mounting portion 23 further has a reserved portion 233 depressed
toward a direction away from the circuit board 4. A gap exists
between the reserved portion 233 and the circuit board 4 to reserve
a space for conducting circuit (not shown) on the circuit board 4.
The mounting portion 23 further includes a fourth soldering portion
234 used for being fixed to the surface of the circuit board 4 in
the surface mounting manner. The fourth soldering portion 234 does
not connect the first soldering portion 231 or the second soldering
portion 232.
[0043] A plate edge of the second side wall 22 close to the circuit
board 4 has a third soldering portion 220, for being fixed to the
surface of the circuit board 4 in the surface mounting manner.
Therefore, the rear end of the shielding casing 2 can wrap the main
body 10 hermetically as much as possible, and the gap at the
position where the second side wall 22 and the circuit board 4 are
soldered is reduced, so as to reduce the risk of leaking
electromagnetic interference signals, and improve the shielding
effect.
[0044] As shown in FIG. 7, as a second embodiment of the present
invention, it is different from the first embodiment in that: the
shielding casing 2 may be formed in a manner of metal die-casting
molding or powder metallurgy molding. Therefore, the first side
wall 21 of the shielding casing 2 extends to encircle the entire
main body 10 along the side wall of the main body 10, and the
mounting portion 23 encircles the periphery of the main body 10.
The mounting portion 23 includes multiple first soldering portions
231 and multiple second soldering portions 232, and the first
soldering portions 231 and the second soldering portions 232 are
sequentially connected to encircle the periphery of soldering pins
62 of multiple conducting terminals 6. Some second soldering
portions 232 include two contact portions 2321 separately located
at two opposite sides of the insertion portion 2320, and each of
the contact portions 2321 is separately connected to one of the
first soldering portions 231. Such a structure can make the
shielding casing 2 wrap the main body 10 seamlessly, and the
mounting portion 23 is in a consecutive ring shape as much as
possible, so that the gap between the mounting portion 23 and the
surface of the circuit board 4 can be further reduced, so as to
strengthen the shielding effect.
[0045] Certain embodiments of the present invention, among other
things, have the following beneficial advantages.
[0046] 1. A first soldering portion 231 of a surface mounting type
and a second soldering portion 232 of a DIP type are disposed on a
mounting portion 23 of a shielding casing 2 and connected to each
other, and the two are coherently soldered to a surface of a
circuit board 4, and therefore a gap between the mounting portion
23 of the shielding casing 2 and the circuit board 4 can be
effectively reduced, so as to reduce the risk of leaking
electromagnetic interference signals, and improve the shielding
effect.
[0047] 2. The mounting portion 23 is disposed at a plate edge of
the shielding casing 2, and therefore it is convenient to form the
first soldering portion 231 and the second soldering portion 232
connected to each other, and the shielding casing 2 can be mounted
onto the circuit board 4 hermetically as much as possible, so as to
reduce the gap at a position where the plate edge of the shielding
casing 2 and the circuit board 4 are connected, and improve the
shielding effect.
[0048] 3. A second side wall 22 and a first side wall 21 are
adjacent and jointly wrap a side wall of a main body 10, and
therefore the rear end of the shielding casing 2 can wrap the main
body 10 hermetically as much as possible, so as to prevent
interference signals in the main body 10 from leaking A third
soldering portion 220 is disposed at a plate edge of the second
side wall 22 and used for being fixed to the surface of the circuit
board 4 in a surface mounting manner, and therefore the gap between
the second side wall 22 and the circuit board 4 can be reduced, so
as to reduce the risk of leaking electromagnetic interference
signals, and improve the shielding effect.
[0049] 4. The first side wall 21 extends to encircle the entire
main body 10 along the side wall of the base 50, and the mounting
portion 23 encircles the periphery of the main body 10, and
therefore the plate edge of the entire shielding casing 2 is fixed
to the circuit board 4 by using the first soldering portion 231 and
the second soldering portion 232 which are sequentially connected.
In such a structure, the shielding casing 2 can wrap the main body
10 seamlessly, the mounting portion 23 is in a consecutive ring
shape as much as possible, and the gap between the mounting portion
23 and the surface of the circuit board 4 can be further reduced,
so as to strengthen the shielding effect.
[0050] 5. A shielding sheet 7 is added onto an accommodating
portion 51, an elastic sheet 70 is disposed at one end of the
shielding sheet 7 to enter a mating cavity 52 to contact a metal
housing of a mating connector, and an arm portion 72 extends from
another end and urges the shielding casing 2. Therefore the
shielding effect at a mating portion 11 can be enhanced, and a
complete grounding path is formed between the shielding connector
and the mating connector, so as to strengthen the shielding effect
of the shielding connector and the mating connector.
[0051] 6. An opening 71 is provided at a middle portion of the
elastic sheet 70 at the front end of the shielding sheet 7, and
elasticity of the elastic sheet 70 can be enhanced, so as to ensure
stable contact between the elastic sheet 70 and the metal housing
of the mating connector.
[0052] 7. The reserved slot 54 runs through a surface of the
accommodating portion 51, is in communication with the mating
cavity 52, and can be reserved for a free end of the conducting
portion 61 to enter correspondingly when the conducting portion 61
contacts the mating connector, so as to ensure that the conducting
portion 61 can elastically move freely, prevent fatigue of a
conducting terminal 6, and ensure good contact.
[0053] 8. A through-hole 73 provided at a position at the center of
the shielding sheet 7 corresponding to the reserved slot 54 can
reserve the conducting portion 61 of the conducting terminal 6, so
as to prevent the shielding sheet 7 and the conducting portion 61
of the conducting terminal 6 from being short-circuited.
[0054] 9. The insulating sheet 8 correspondingly covers the
through-hole 73 of the shielding sheet 7, and is used for isolating
the conducting portion 61 of the conducting terminal 6, so as to
prevent the conducting portion 61 and the metal casing 3 from being
short-circuited.
[0055] The foregoing description of the exemplary embodiments of
the invention has been presented only for the purposes of
illustration and description and is not intended to be exhaustive
or to limit the invention to the precise forms disclosed. Many
modifications and variations are possible in light of the above
teaching.
[0056] The embodiments are chosen and described in order to explain
the principles of the invention and their practical application so
as to activate others skilled in the art to utilize the invention
and various embodiments and with various modifications as are
suited to the particular use contemplated. Alternative embodiments
will become apparent to those skilled in the art to which the
present invention pertains without departing from its spirit and
scope. Accordingly, the scope of the present invention is defined
by the appended claims rather than the foregoing description and
the exemplary embodiments described therein.
* * * * *