U.S. patent number 3,760,336 [Application Number 05/127,609] was granted by the patent office on 1973-09-18 for miniature connector-modular.
This patent grant is currently assigned to The Bunker-Ramo Corporation. Invention is credited to James Joseph Cerwin.
United States Patent |
3,760,336 |
Cerwin |
September 18, 1973 |
MINIATURE CONNECTOR-MODULAR
Abstract
A miniature connector of which each main part includes a
dielectric insert made up of a plurality of modules in the form of
blocks, each having an individual arrangement for mounting pin
contacts and socket contacts, respectively, the different modules
accommodating different sized contacts and the modules being
individually and selectively positionable within the respective
connector parts, whereby to enable special make-up of a connector
according to specific local and immediate requirements as to the
size or other characteristics of the contacts.
Inventors: |
Cerwin; James Joseph (Oak Park,
IL) |
Assignee: |
The Bunker-Ramo Corporation
(Oak Brook, IL)
|
Family
ID: |
22430984 |
Appl.
No.: |
05/127,609 |
Filed: |
March 24, 1971 |
Current U.S.
Class: |
439/363 |
Current CPC
Class: |
H01R
13/514 (20130101) |
Current International
Class: |
H01R
13/514 (20060101); H01r 013/54 () |
Field of
Search: |
;339/121,132-134,136-142,176M,184R,184M,191M,192R,196M,206,210,92 |
References Cited
[Referenced By]
U.S. Patent Documents
Other References
Aviation Week, "Existing Connection Methods," August,
1966..
|
Primary Examiner: Champion; Marvin A.
Assistant Examiner: Staab; Lawrence J.
Claims
I claim:
1. A miniature connector comprising,
a pair of elongated connector assemblies movable in connecting
direction to interfitted position, each connector assembly having a
shell envelope including a back plate and a front shell with
longitudinally extending end flanges for securing them together,
and with a space between the back plate and front shell at a
position between the end flanges, of significant dimension in said
connecting direction,
the front shell having a tubular portion extending in connecting
direction,
insert means in the shell envelope including a plurality of modules
disposed in end-to-end relation together extending at least nearly
the longitudinal extent of the tubular portion,
the modules having base portions disposed in said space between the
back plate and front shell and extending laterally beyond the
tubular portion, and having body portions extending into the
tubular portion,
the modules having aligned grooves in the base portions receiving
the adjacent edges of the tubular portion and the latter serving to
confine the modules against transverse displacement, said edges of
the tubular portion and the back plate clamping the modules
therebetween, and
the modules in the two connector assemblies being adapted for
mounting therein of pin contacts and socket contacts respectively,
and being of such pattern of distribution of the contacts that the
contacts in the mating modules are respectively aligned in the
position of the connector assemblies when interfitted.
2. A miniature connector according to claim 1 wherein the modules
project through the back plate, and the back plate and modules
having interlocking conformations confining the modules against
longitudinal displacement.
3. A miniature connector according to claim 2 wherein said
interlocking conformations include such on opposite sides of each
of the modules, and those on the opposite sides are of different
dimensions, whereby to predeterminedly position the modules in
side-to-side relation.
4. A miniature connector according to claim 3, wherein the
interfitting of the connector assemblies is accomplished by
frictionally telescoping the front shells in inner and outer
relation, and
the modules in the connector assembly having the inner front shell
extend to adjacent the front end of that front shell, and the
modules in the other connector assembly extend thereinto but to a
substantially lesser extent whereby to effect substantial
interengagement of the modules in the two connector assemblies in
the telescoping interfitting of the connector assemblies.
Description
FIELD OF THE INVENTION
The invention relates to miniature connectors which usually include
a large number of contacts, and quite often, and most often, the
same kind of connector may be used in a large number of
applications, justifying the necessary substantial costs for
tooling up for a specific kind of connector. However, there are
also many instances in which there is a great need for special
kinds of connectors, but not in such great numbers, and in such
cases it is not always justifiable to invest the great sums needed
for tooling up. Additionally, if such connectors were to be made by
hand tooling, the cost in that case also would be exhorbitant.
OBJECTS OF THE INVENTION
A broad object of the invention is to provide a miniature connector
of the foregoing overall character, which overcomes the objections
referred to above.
Another and broad object is to provide a miniature connector of the
character just referred to which utilizes components very similar
to components in miniature connectors heretofore known, and in the
case of at least certain of those components, they are made of
modular construction and mated in the main parts of the connector,
and function in precisely the same manner as corresponding elements
of miniature connectors heretofore made, whereby to enable a
manufacturer by selecting certain ones of the modules for
incorporation in a connector, and further wherein such modules and
the other components of the connectors can be made in large numbers
whereby to reduce tooling costs therefor, and additionally whereby
a manufacturer can make up special connectors in relative small
numbers at low costs similar to those involved in making miniature
connectors of the kind heretofore known.
Still another and more specific object is to provide a miniature
connector of the foregoing character which utilizes pin contacts
and socket contacts of kinds heretofore known and used as well as
other constructional features such as a shell member and a back
plate, identical with or similar to corresponding components used
in previously known connectors, in this way additionally minimizing
costs of manufacture.
Still another object is to provide a miniature connector of the
foregoing character in which the modules are in the form of inserts
which hold the pin contacts and socket contacts and in which the
connector includes novel construction for locating the modules in
proper position, and accurately aligning them so that the pin
contacts and socket contacts in the two main parts of the connector
are properly aligned.
Still another object is to provide a miniature connector of the
foregoing character having physical construction providing novel
interlocking arrangement between the parts making up the connector,
and including means for preventing distortion of the components
confining the modules and thereby preventing displacement or
misalignment of the modules which might otherwise be occasioned
because of their modular and hence small dimensions.
DESCRIPTION OF A PREFERRED EMBODIMENT
In the drawings:
FIG. 1 is a side elevational view of a connector incorporating the
features of the present invention, with the main parts fitted
together;
FIG. 2 is an end view of the connector of FIG. 1;
FIG. 3 is a side view of the connector but with the main parts
separated;
FIG. 4 is a view from the right of FIG. 3;
FIG. 5 is a view taken at line 5--5 of FIG. 3;
FIG. 6 is a perspective view of modules or module inserts;
FIG. 7 is a fragmentary face view, on a large scale, oriented
according to FIG. 5;
FIG. 8 is a large scale view taken at line 8--8 of FIG. 3;
FIG. 9 is a large scale sectional view taken at line 9--9 of FIG.
3; and
FIG. 10 is a sectional view of the parts shown in FIG. 9 but with
the parts interconnected.
Referring in detail to the accompanying drawings, a connector 10
made according to the present invention is shown in connected
relation, while the same connector is shown in FIG. 3 with the main
parts separated, these main parts being a socket connector assembly
12 and a pin connector assembly 14. These two assemblies are
closely similar in construction, -- the socket connector assembly
12 includes a front shell 16 and a back plate 18, these two
components forming a shell envelope confined within which is
dielectric insert means 20 made up of a plurality of modules 20a.
The front shell 16 and back plate 18 have mating flanges 22, 24
respectively, provided with apertures 26 (FIG. 5) through which
suitable securing means such as rivets, bolts, etc. are inserted
for securing the two components 16, 18 together, this securing
means being indicated diagrammatically by the dotdash line 26a.
The connector assembly 14 includes a front shell 28 and a back
plate 30 between which is confined insert means 32 made up of a
plurality of modules 32a. The components 28, 30 are provided with
flanges 34, 36 respectively, having apertures for securing means
similarly being diagrammatically indicated by the dot-dash line
38.
The front shells 16, 28 (except for the flanges 22, 34) are
generally tubular in form although elongated and narrow (FIG. 5)
and the front shell 16 fits into the front shell 28 with a friction
fit, aiding in securing the two main parts or assemblies 12, 14
together. The shells are preferably nonrectangular in plan, to
orient them in predetermined position.
The two back plates 18, 30 are identical in construction, or
substantially so and are referred to again hereinbelow in
connection with the insert means 20, 30.
As indicated above the insert means 20, 30 are made up of a
plurality of modules and attention is directed particularly to FIG.
6 showing such modules in perspective. The modules of both kind are
identical or similar in their outer shape, but differ in depth
(FIGS. 9 and 10) and differ in the cavities therein according to
whether the pin contacts or the socket contacts are to be
accommodated. Each module 20, 32 is in the form of a block (FIG. 6)
square or nearly square in cross section and each having which for
convenience are termed end surfaces 40, and side surfaces 42, as
well as an upper or inner end surface 41 and a lower or outer end
surface 43. The modules are placed in the shell envelopes in such a
manner that the upper or inner end surfaces 41 interface when the
connector parts are fitted together (FIGS. 9 and 10) and the low or
outer end surfaces 43 extend outwardly from each other. On the side
surfaces are locking elements or cleats 44 each having an upturned
rib 46 defining a groove 48 with the corresponding side surface 42.
Locating and holding fins 50, 52 extend downwardly from the cleats
to the bottom edge of the block. One fin is shown in FIG. 6 and
both fins are shown well in FIG. 8 and also included in FIGS. 9 and
10. These two fins 50, 52, are of different width for use in
positioning the modules as referred to again hereinbelow.
The modules 20, 32 are provided with apertures 54 for fitting
therein of socket contacts 56 and pin contacts 58 (FIGS. 9 and 10).
This placement of apertures and contacts therein is known. These
contacts are shown semi-diagrammatically, it being understood of
course that conductors lead therefrom. Reference may be made to
Yopp, U.S. Pat. No. 3,101,229, dated Aug. 20, 1963 for further
details of contacts and conductors, as well as other details that
do not enter into the modular concept of the present invention.
In making up the insert means 20, 32, the desired number of modules
or module inserts (in accordance with requirements as referred to
hereinbelow) are fitted together in end-to-end relation with the
end surfaces 40 in mutually abutting relation. These are fitted in
the assembly in the desired order, such for example as fitting them
in the back plate 18. This back plate includes parallel
longitudinal members 60 having flanges 62 extending in the
direction of the axis of the aperture 54 and inturned flanges 64
having notches therein 66, 68 on opposite sides and of different
sizes for receiving the fins 50, 52 in the modules.
In so fitting the modules in position, as in the back plate, the
cleats 44 rest against the inturned flanges 64, and when the front
shell 16 is fitted in place, the inner edges of that shell
indicated at 70 (FIGS. 9 and 10) fit into the grooves 48 in the
modules. Then upon putting the securing means 26 in position, the
two main components of the connector assembly are held together and
the modules are gripped therebetween. The same steps are followed
in making up both connector assemblies 12, 14.
The contacts and the conductors connected thereto are put in place
in the modules in a known manner, and the connector assemblies are
interconnected according to their ultimate use, also in a known
manner. It is also practical to provide blanks or spaces for use
when a lesser number of apertured modules are desired, for a given
size of shell envelope is utilized, and even to use an apertured
module without contacts as such spacers.
The interconnection between the fins 50, 52 in the notches 66, 68
confines the modules against longitudinal movement, and the
engagement of the marginal edges 70 of the front shell in the
grooves 48 together with the lateral engagement by the side strips
of the back plate with the modules retain the modules against
displacement transversely.
FIG. 7 shows a slightly modified form of modules, in this case
having tongue and groove interconnections 72 on their end surfaces
40.
The modules 20, 32 are provided with the desired individual
patterns of apertures 54 according to the size and capacity of the
socket contacts and pin contacts desired, as represented in FIG. 5.
The range of characteristics of such contacts is great, and the
modular inserts, as indicated above are all of the same exterior
conformation and therefore they can be selected according to any
desired combination of contacts necessary for any given connection.
Even with a small number of modules illustrated, in the present
case, five, a 120 combination can be achieved. Tooling need be made
for each of the modules independently and it is not necessary to
tool up for any combination of modules. Therefore a large number of
each of the individual modules may be stocked with a minimum of
tooling, and only those modules required in any particular
connector, are selected, and they are arranged in the particular
order combination according to the characteristics of the intended
connector.
As indicated above, there are many instances in which a miniature
connector of special characteristics is needed, but only in small
numbers, and therefore the manufacturer can make up such a special
connector out of the modules, and the other components of the
connector which are standard or only slightly modified. For example
the front shells 16, 28 are standard items, and the back plates 18,
30 are very similar to back plates heretofore utilized in standard
connectors, and the tooling required for producing them is minimal,
with the further advantage that any cost of tooling therefor is
distributable over all of the special connectors assembled having
any of the various combinations of modules. A great advantage is
realized where such special connectors are to be used in a
commercial project, although in small numbers, and also in
developement and research where usually even a small number would
be required.
* * * * *