U.S. patent number 3,671,918 [Application Number 04/819,903] was granted by the patent office on 1972-06-20 for intraconnector wiring change module.
This patent grant is currently assigned to Hughes Aircraft Company, Culver City, CA. Invention is credited to John E. Mitchell.
United States Patent |
3,671,918 |
|
June 20, 1972 |
INTRACONNECTOR WIRING CHANGE MODULE
Abstract
The module is provided with input and output electrical contacts
which are arranged to receive conventional cable terminations. The
input and output contacts are respectively brought out from the
interior of the module body to exposed connection pins. There are
as many exposed connection pins as there are input and output
contacts. Connections are made between or among the several
connection pins by conventional means in order to change the scheme
or arrangement of wiring connections in an electronic apparatus to
another connection scheme. An insulating and sealing cover or
permanent potting may be placed over the pins to protect the newly
made connections.
Inventors: |
John E. Mitchell (Culver City,
CA) |
Assignee: |
Hughes Aircraft Company, Culver
City, CA (N/A)
|
Family
ID: |
25229390 |
Appl.
No.: |
04/819,903 |
Filed: |
April 28, 1969 |
Current U.S.
Class: |
439/49; 439/651;
439/189 |
Current CPC
Class: |
H01R
31/00 (20130101) |
Current International
Class: |
H01R
31/00 (20060101); H01r 029/00 () |
Field of
Search: |
;339/18,17,94,154,176 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Marvin A. Champion
Assistant Examiner: Terrell P. Lewis
Attorney, Agent or Firm: James K. Haskell Lewis B.
Sternfels
Claims
1. An intraconnector wiring change module comprising a body having
input and output electrical contacts at opposed ends of said body
said input and output contacts being arranged in layers, each said
layer being progressively removed from the preceeding layer in a
direction away from the axis of said body, said input and output
contacts being shaped and arranged to receive electrical equipment
terminals, said body comprising a plurality of sections secured
together each said section having a plurality of exposed connection
pins arranged in a row and extending from said body substantially
at right angles to the axis thereof to form with the others of said
sections a plurality of pin rows extending parallel to each other
one-half of said pins having connections to said input contacts and
the other one-half of said pins having connections to said output
contacts, said pin rows axially furthest from said contacts having
their connections to said layers of said contacts closest to the
axis of said body and said pin rows axially closest to said
contacts having their connections to said layers of said contacts
furthest from the axis of said body, means for connecting at least
one of said pins with any selected other one
2. An intraconnector wiring change module comprising a body having
male and female contacts at opposed ends of said body for mating
connection with cables and a plurality of exposed separate
connecting pins extending from said body at an angle to said
contacts, one-half of said pins being connected to and equal in
number to said female contacts and the other one-half of said pins
being connected to and equal in number to said male
3. A module as in claim 2 further including a removable collar
placed about
4. A module as in claim 2 wherein said contacts are arranged in
rectangular configuration for mating with rectangular wire
connectors of said cables.
5. A module as in claim 2 wherein said contacts are arranged in
circular
6. A module as in claim 2 wherein said contacts are arranged in
substantially flat configuration for mating with flat ribbon
cable
7. A module as in claim 2 comprising a plurality of sections
secured together, each said section having at least one of said
pins and at least one connection from said one of said pins to at
least one of said
8. A module as in claim 7 wherein said sections include
polarization keying
9. A module as in claim 2 further including a permanent potting
compound
10. An intraconnector wiring change module adapted to connect first
and second electric devices comprising a body having first contact
means couplable to the first electric device and extending in a
first direction, second contact means couplable to the second
electric device and extending in a second direction other than the
first direction, and intermediate individual connection means,
one-half of said connection means being secured to and equal in
number to said first contact means and the other one-half of said
connection means being secured to and equal in number to said
second contact means, and interconnection means coupling any one
and more of said connection means among any two and more of others
of said connection means for selective interconnection among said
first and second
11. In an electronic apparatus requiring intermediate electrical
interconnections between electrical terminals, a module having
first contacts couplable to first ones of the terminals, second
contacts couplable to second ones of the terminals, said first
contacts having ends and said second contacts having ends, said
ends being independent and free from coupling with each other and
being exposed at the exterior of said module, and means coupling at
least one of said exposed first contact ends with any selected
number of said exposed second and other first contact
12. A method for making a change in an electrical connection scheme
in an electronic apparatus having a plurality of first terminals
connected to a plurality of second terminals according to the
connection scheme comprising the steps of: utilizing a module
having a plurality of input contacts mateable with the first
terminals, a plurality of output contacts mateable with the second
terminals, a plurality of exposed separate and independent first
lead ends, each of said first lead ends connected to each of said
input contacts, and a plurality of exposed separate and independent
second lead ends, each of said second lead ends connected to each
of said output contacts, and connecting at least some of said
exposed first lead ends to at least some of said exposed second
and/or other first lead ends to effect the change.
13. A method for making a change in an electrical connection scheme
in an electronic apparatus having a plurality of first terminals
connected to a plurality of second terminals according to the
connection scheme comprising the steps of: utilizing a module
having a plurality of input contacts mateable with the first
terminals, a plurality of output contacts mateable with the second
terminals, a plurality of separate and independent first lead ends,
each connected to each of said input contacts, and a plurality of
separate and independent second lead ends, each connected to each
of said output contacts; connecting at least some of said first
lead ends to at least some of said second and/or other first lead
ends to effect the change; and placing a protective cover over said
lead ends in sealing engagement with said module.
Description
The present invention relates to an apparatus and method for
changing the scheme or arrangement of wiring connections in an
electronic apparatus to another connection scheme.
Electrical connections among electronic components are generally
made by use of multiple wire cables being in such shapes or
arrangements as radial, flat ribbon, and harness. Because such
cables contain a plurality of leads, once the wiring design has
been formulated and the wires have been connected among components,
wiring changes cannot be readily made.
Nevertheless, during various stages of design, testing, prototype,
production retrofit, evolutionary development or development of a
family of wiring schemes, previously produced cabling, harness
systems, and/or wiring connection schemes usually require changes.
Such changes have been conventionally accomplished by cutting,
rearranging, and/or splicing the wires or by removing and replacing
the entire cable with a newly designed cable containing the desired
wiring changes. Special devices, such as the so-called "patch
panel" have also been utilized. Regardless of the particular
changing method used, all schemes are inefficient and wasteful.
Cutting and/or splicing does not provide for a neat connection, and
replacement of cables is expensive in that the old cable is
discarded. In addition, considerable time is lost implementing the
changes.
The present invention overcomes these and other problems by
utilization of a special module provided with input and output
electrical contacts which are arranged to receive conventional
cable termination male and female pins and sockets. Both the input
and output contacts are housed within a dielectric body and
preferably open at opposed ends thereof. The input contacts are
brought out from the interior of the body to wire-wrap or other
exposed connection pins which extend from the side of the module
and, similarly, the output contacts at the other end of the module
are brought out to connection pins also on the side of the module.
There are as many connection, wire-wrap and the like pins as there
are contacts and there are as many input and output contacts as
there are respective cable wires.
Connections are made between or among the several wire-wrap pins by
conventional automatic or manually operated or wire-wrap tools to
effect the desired wiring connections in the new scheme. Alternate
methods of making connections such as sliding sleeve, welding,
crimping, or soldering operations can also be used in this scheme.
An insulating and sealing cover may then be placed over the pins to
protect the newly made connections, or permanent potting may be
used.
The inventive module is useful for connecting two sections of cable
or to connect a section of cable and the device into which the
cable normally plugs. This connection may be a simple plugging
together or may additionally utilize key and lock, screw
attachments, and the like.
It is, therefore, an object of the present invention to provide for
a simple and lightweight wiring change method and device.
Another object is the provision of bringing out any cable conductor
to any connector contact.
Another object is to provide for making repeated changes in wiring
schemes.
Another object is the provision of a method and device for
readdressing and reterminating cable connections without removal of
the cable from its location or position.
Another object is to provide a device which can be removed from its
interim interface position in a harness or cable, revised to
readdress the interface remotely, and reinstalled in the same
harness interface to effect wiring changes.
Another object is the provision of a device which can accept any
electrical termination, such as wire-wrap, sliding sleeve, crimp,
solder, or welded interim terminations, either in its cable or
harness interface position or at a location remote therefrom.
Another object is to provide a device which, when introduced
between interface connectors, mates with both connector halves and
exposes each end of each mating contact for interim wiring
changes.
Another object is the provision of a means and method for obtaining
complete changeability of connector interfaces and allowing
multiple commoning of conductors as required.
A further object is to provide a means and method for facilitating
the design, prototype, and testing stages or the temporary and
evolutionary changes of an electronic apparatus.
Another object is the provision of a means and method for
retrofitting production wiring changes into previously produced
cabling or harness systems without changing existing cabling or
harness configurations.
Another object is to provide a means and method for retaining the
physical identity of the cable or harness system while the wiring
scheme is changed.
Another object is to facilitate the wiring or rewiring of an
electronic apparatus without the requirement of special
tooling.
Another object is to quickly implement wiring changes into an
established design during development, production, or maintenance
stages without disturbing the basic wiring scheme, cable or
harness.
Other aims and objects, as well as a more complete understanding of
the present invention will appear from the following explanation of
exemplary embodiments and the accompanying drawings thereof, in
which:
FIGS. 1a, b, and c are respectively side, end, and top views of one
embodiment of the present invention configured for use with a
rectangular style connector;
FIGS. 1d and e are perspective views of the embodiment depicted in
FIG. 1 in exploded position and in assembled position;
FIGS. 2a, b, and c are respectively side elevational partly in
cross-section, exploded perspective, and assembled perspective
views of a second embodiment of the present invention for use with
conventional round style connectors;
FIGS. 3a, b, and c are respectively side elevation, bottom, and
assembled views of a third embodiment of the present invention with
FIG. 3c additionally showing this embodiment secured to a
conventional connector; and
FIGS. 4a, b, and c are perspective views of the illustrative third
embodiment depicted in FIG. 3 illustrating a means by which a
wiring change may be accomplished.
Accordingly, with respect to FIGS. 1a-e an intraconnector wiring
change module 10 comprises a body 12 of suitable dielectric
material which may be formed from several sections 14 including end
sections 16 and 18 although, if desired, the body may comprise a
single unsectionalized structure. Section 16 contains a plurality
of female contacts 20 arranged in layers 20a, 20b, and 20c while
section 18 is provided with a plurality of male contacts 22
arranged in layers 22a, 22b, and 22c. Each layer is progressively
removed a greater distance than the succeeding layer from body axis
23 towards the surface of the body, the a layers being closest to
axis 23 and the c layers being furthest from axis 23. Contacts 20
and 22 are configured to mate with well-known male and female
terminals conventionally secured to the ends of electronic
apparatus or harness or other type cables. Extending from the top
and bottom sides of body 12 are a plurality of rows 24, 26, 28, 30,
32, and 34 of exposed connecting pins 35. Pins 35 may comprise any
desired form such as "wire-wrap" pins, taper pins, "TERMAPOINT"
(Trademark of Amp Inc.), etc.
As best shown in FIG. 1d, each row 24-34 of pins 35 is connected to
individual intermediate connectors, such as connectors 36 secured
to pins 30 and connectors 38 secured to pins 32. For pins 30, which
are furthest removed in an axial direction from contacts 22,
connectors 36 are placed closer to the center of sections 14 than
connectors 38 whose pins 32 are not as axially removed from
contacts 22 as pins 30. Connectors 36 extend through holes 40 in
neighboring sections 14 and are connected to and terminate at
contact layer 22a. Likewise, connectors 38 extend through holes 41
in a neighboring section 14 and are connected to and terminate at
contact layer 22b.
In addition, as best shown in FIG. 1c, rows 24, 26, and 28 of
exposed connecting pins 35 are connected to individual female
contacts 20 while pins 35 of rows 30, 32, and 34 are connected to
individual male contacts 22, that is, row 24 being connected to
contact layer 20c, row 26 being connected to contact layer 20b, and
so forth. Thus, each male and female contact 20 and 22 has its own
individual exposed connecting pin 35. To prevent crowding of the
wire-wrap pins, the pins extend from the top and bottom sides of
body 12; however, the pins may be formed to extend about the entire
periphery of the body. In order to rigidly assemble sections 14
into a unitary body 12, holes 42 in each of the sections are
disposed to receive bolts and nuts, not shown. However, module 10
may be molded in a single piece, screw attached (see FIGS. 2a-c),
or otherwise secured in any appropriate manner. A semi-permanent
cam connectable type cover 44 and gasket 46 or a permanent potting
protection may be placed over connected pins 35, as illustrated in
FIG. 1c.
Referring to FIGS. 2a-c, a second embodiment of the present
invention discloses an interconnector wiring change module 50.
Module 50 comprises a plurality of sections 52, 54, 56, 58, and 60
from which radiate a plurality of rows 62, 64, 66, 68, 70, and 72
of exposed connecting pins 73. Section 54 is a separator section
without any connecting pins to provide insulation between the
connector pins and includes a key 74 which cooperates with a slot
in section 52. Other sections have similar keys and slots to afford
polarization and alignment knowledge of electrical and mechanical
natures. Sections 52 and 60 to terminate respectively in female
contacts 75 and male contacts 76 both of which are configured in a
concentric circular fashion so as to be mateable with conventional
round style cable connectors and which comprise contact layers 75a,
75b, 75c for contacts 75 and contact layers 76a, 76b, and 76c for
contacts 76. The arrangement of pin rows 62-72 and sections 52-60
are similar to that disclosed with respect to the embodiment of
FIGS. 1a-e with the exception that the wire-wrap pins are
distributed about the entire periphery of module 50 and radiate
from the axis thereof. Also, pin row 62 is connected to contact
layer 75c, pin row 64 is connected to contact layer 75b, etc.
After connections have been made among the several wire-wrap pins
to readdress the wiring scheme, a hermetically sealed collar 78
[FIG. 2a] is installed over the module to protect the newly made
connections. If the changes made are to be permanent, the
interconnecting area of the readdressed pins may be potted instead
of being protected as by hermetically sealed collar 78. Such a
collar or plotting cover is illustrative as useful for all
embodiments of the invention. Mating housings 80 and 82 are placed
over the ends of the assembled sections. A collar 84 is provided
with a flange 86 to engage housing 80 and with threads 88 to engage
cooperating threads 90 on housing 82.
Now referring to FIGS. 3a-c, an intraconnector wiring change module
100 is configured to accept an edge-card connector. Module 100
comprises a body 102 having a plurality of female contacts 104 and
a plurality of male contacts 106 which are disposed for mating with
flat ribbon cable connectors. Rows 108, 110, 112, and 114 of
exposed connecting pins 116 extend from body 100, rows 108 and 110
being secured to female contacts 104 and rows 112 and 114 being
connected to male contacts 106. Although shown to extend from one
side of module 100, the wire-wrap pins may be made to extend from
both sides if so desired. After electrical connections have been
made among the several pins 116, the pins are protected by a cam
connectable type cover 117 and seal gasket 118 or potted, if the
protection is to be permanent.
The use of the present invention is described with reference to
FIGS. 4a- c utilizing the particular embodiment depicted in FIGS.
3a- c. FIG. 4a shows a flat ribbon cable 120 terminating in an
edge-card connector 122 which facilitates ease of connection of the
cable. Conventionally, connector 122 is secured to a mating socket
124 so as to establish a particular wiring scheme.
To change the wiring scheme, the contacts are relabelled from the
existing connector contact coordinates to a new male to female
coordinate system by use of an intraconnector wiring change module
126 as depicted in FIG. 4b. Module 126 is then placed in-between
connector 122 and socket 124. The male contacts 128 of connector
122 are plugged into female contacts 130 of module 126 and, in
turn, the male contacts 132 of module 126 are plugged into female
contacts 134 of socket 124. Wire-wrap pins 136 of module 126 are
then interconnected according to the desired new wiring scheme with
the aid of the new coordinate system, such as illustrated by
connection 138, and the whole may be potted or enclosed by a
collar, such as collar 78 of FIGS. 2a- c to seal and protect the
newly formed interconnections. If such a collar and seal are
utilized, they may be later removed without disturbing the assembly
to allow further wiring changes as needed or desired.
Modules 10, 50, 100 and 126, although previously described for use
in wiring scheme changes, are as adaptable to joining further
cables and apparatus to existing cables and attaching test,
checkout, programming and circuit analyzing equipment to the
existing apparatus.
Although the invention has been described with reference to
particular embodiments thereof, it should be realized that various
changes and modifications may be made therein without departing
from the spirit and scope of the invention.
* * * * *