U.S. patent number 3,864,000 [Application Number 05/367,926] was granted by the patent office on 1975-02-04 for mating contact connector housing assembly.
This patent grant is currently assigned to AMP Incorporated. Invention is credited to Robert Franklin Cobaugh, James Ray Coller.
United States Patent |
3,864,000 |
Coller , et al. |
February 4, 1975 |
MATING CONTACT CONNECTOR HOUSING ASSEMBLY
Abstract
A mating contact connector housing assembly having a plurality
of contacts housed therein, the contacts including contact blade
portions and terminal portions and being mounted within the housing
in a cantilever manner such that they are restrained from moving
within longitudinally extending planes yet are permitted to undergo
flexural movement within laterally extending planes, whereby the
contact members accomodate and compensate for contact misalignment
with mating contact members. The housing is also provided with
additional aligning pins to properly align the housing relative to
a mating housing and is further provided with a dependent skirt
which serves to additionally promote the alignment between the
mating housing as well as protect the contact members against
structural damage.
Inventors: |
Coller; James Ray
(Mechanicsburg, PA), Cobaugh; Robert Franklin
(Elizabethtown, PA) |
Assignee: |
AMP Incorporated (Harrisburg,
PA)
|
Family
ID: |
23449184 |
Appl.
No.: |
05/367,926 |
Filed: |
June 7, 1973 |
Current U.S.
Class: |
439/246; 439/79;
439/629 |
Current CPC
Class: |
H01R
12/716 (20130101); H01R 12/724 (20130101); H01R
12/737 (20130101) |
Current International
Class: |
H01H
1/32 (20060101); H01H 1/12 (20060101); H01R
13/08 (20060101); H01R 13/14 (20060101); H01R
13/10 (20060101); H01R 13/04 (20060101); H01R
13/40 (20060101); H01R 27/00 (20060101); H01R
27/02 (20060101); H01R 33/76 (20060101); H01R
13/46 (20060101); H01R 13/62 (20060101); H01r
021/28 () |
Field of
Search: |
;339/64,65,17LC,206,207,208,209,210 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Frazier; Roy D.
Assistant Examiner: Hafer; Robert A.
Attorney, Agent or Firm: Kita; Gerald K.
Claims
What is claimed as new and desired to be secured by Letters Patent
of the United States:
1. An electrical connnector having a plurality of electrical
terminals mounted in rows within a housing of dielectric material,
comprising:
first and second rows of apertures in said housing receiving said
terminals,
said housing having a first end portion and a second end
portion,
each aperture having a relatively large first portion extending
through said first end portion of said housing and an adjacent
relatively narrow second portion extending through said second end
portion of said housing,
each terminal having a relatively enlarged wide portion received in
a corresponding first portion of a corresponding aperture and
protruding from said first end portion of said housing,
each terminal having a relatively narrow portion received in a
corresponding second portion of a corresponding aperture,
said housing defining a seating portion between the first and
second portions of each aperture,
each terminal engaging and seating against a corresponding seating
portion,
said housing second end portion defining first and second anvil
surfaces,
said first row of terminals having the second portions thereof
extended outwardly of said first row of apertures and bent to
overlie against said first anvil surface and to project outwardly
of said housing, and
said second row of terminals having said second portions thereof
extended outwardly of said second row of apertures and bent to
overlie against said second anvil surface and to project outwardly
of said housing.
2. The structure as recited in claim 1, wherein, said second end
portion of said housing includes a plurality of slots adjacent said
first and second anvil surfaces for receiving said second end
portions of said terminals which overlie against said first and
second anvil surfaces.
3. The structure as recited in claim 1, wherein, each first portion
of a corresponding aperture includes opposite converging sidewalls,
and
a corresponding second portion of a corresponding terminal is
capable of resilient cantilever deflection in a space between said
opposite converging sidewalls.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to electrical contact
housings, and more particularly to a housing which readily permits
the rapid and positive connection of the contacts housed therein
with mating contacts housed within mating contact housings.
2. Description of the Prior Art
Current electronic assembly techniques, particularly in the field
of computers, utilize banks of removable printed circuit boards in
modules whereby the printed circuits may be connected to and
disconnected from associated circuitry. In order to facilitate such
connections between the various circuits and the associated
circuitry, contact housings are employed whereby mating contacts
serve to connect the leads of the associate circuitry with the
leads of the printed circuits.
Although a multitude of such housings are currently being employed
in conventional electronic systems, there is a substantial need for
example, for electrical contacts which may be simply and
economically produced and easily and quickly assembled within the
contact housings, and concomitantly therewith, there is in addition
a substantial need for contact housings which in turn facilitate
the rapid and positive interconnection between the various
circuits. Throughout the service life of a particular piece of
electronic equipment, for example, the circuit boards housed
therein may be exchanged an unaccountable number of times, and an
often resulting occurrence within such systems is an improper
condition, due to, for example, misaligned contact pins within the
connector housings. Such an occurrence could of course result in
damage to the contact pins, as well as to the housings and possibly
the equipment, aside from the fact that the equipment will fail to
operate properly within all phases of its operation, such of course
necessitating operative delays and repairs.
Accordingly, it is desirable to provide mating contact housings,
coupled with the associate circuitry to be electrically
interconnected which overcome the aforementioned disadvantages. In
this manner, the circuit contacts may be quickly and easily
assembled within the separate housings, whereupon the contacts and
housings may be subsequently rapidly and properly mated so as to
interconnect the associate circuitry when and as desired. One such
type of housing is disclosed within the co-pending and commonly
assigned application entitled "Preloaded Contact and Latchable
Housing Assembly," and the present application is consequently
directed toward the mating contact housing.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide an
improved mating electrical contact connector housing assembly which
may be simply and economically manufactured.
Another object of the present invention is to provide an improved
mating electrical contact connector housing assembly wherein the
contacts may be rapidly inserted therein and the housing and
contacts may subsequently be quickly secured relative to a
particular printed circuit board.
Still another object of the present invention is to provide an
improved mating electrical contact connector housing assembly which
facilitates the rapid interconnection with a mating housing and
contact assembly coupled withh associate electronic circuitry.
Yet another object of the present invention is to provide an
improved mating electrical contact connector housing assembly which
automatically facilitates proper alignment with another mating
assembly upon interconnection therebetween.
A further object of the present invention is to provide an improved
mating electrical contact connector housing assembly wherein the
contact components are permitted to flex within predetermined
limits so as to facilitate proper and positive contact with the
mating contact components.
A yet further object of the present invention is to provide an
improved mating electrical contact connector housing assembly
wherein the contact components are protected against mechanical
damage.
A still further object of the present invention is to provide an
improved mating electrical contact connector housing assembly
wherein the contact members are secured within the housing without
the use of separate fastening components.
The foregoing objects are achieved according to this invention
through the provision of a mating electrical contact housing
assembly including a substantially rectangular housing having two
rows of contacts housed therein, the contacts including contact
blade portions and terminal portions interconnected by bevelled
sections which mate with corresponding wall portions of the housing
whereupon the contact blades are permitted to undergo lateral
flexural movement in planes transverse to the longitudinal axis of
the housing, but are restrained from any lateral movement in planes
extending longitudinally of the housing, such flexural movement
assuring proper contact blade alignment with the mating contact
members. The bevelled portions also assure proper seating of the
contacts within the housing after which the contacts may be secured
to associate circuitry within a printed circuit board. The housing
is also provided with skirt means for protecting the contact blades
against mechanical damage, and independent alignment pins for
facilitating proper alignment between the mating housings.
BRIEF DESCRIPTION OF THE DRAWINGS
Various other objects, features, and attendant advantages of the
present invention will be more fully appreciated as the same
becomes better understood from the following detailed description
when considered in connection with the accompanying drawings, in
which like reference characters designate like or corresponding
parts throughout the several views, and wherein:
FIG. 1 is an exploded perspective view partially in section, of an
entire mating housing assembly and the associated circuitry,
including the assembly constructed according to the present
invention and showing its cooperative parts;
FIG. 2 is a partial view of FIG. 1 showing the entire mating
housing assembly prior to interconnection of the mating housings
and contact members;
FIG. 3 is a cross-section view of the entire mating housing
assembly, subsequent to interconnection of the mating housings and
contact members, taken along the plane 3--3 of FIG. 2;
FIG. 4 is a cross-section view of the mating housing assembly of
the present invention, taken along the line 4--4 of FIG. 3;
FIG. 5 is a partial view of FIG. 3 showing the assembly of an
electrical contact member within the mating housing of the present
invention; and
FIG. 6 is a view similar to FIG. 3 showing the interconnection of
the mating housings and contact members, the housing and contact
member of the present invention being shown in dotted line prior to
interconnection with the mating housing and contact member, and
being shown in solid line subsequent to the interconnection with
the mating housing and contact member.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
Referring now to the drawings, and more particularly to FIGS. 1 and
2 thereof, there is shown the entire mating housing assembly,
including the housing and contact members of the present invention,
generally indicated by the reference characters 10 and 12,
respectively, as well as the housing and contact members of the
co-pending and commonly assigned application, noted heretofore,
generally indicated by the reference characters 14 and 16,
respectively. The one-piece housing 10 is substantially rectangular
in shape and may be inexpensively manufactured from suitable
plastic material, such as for example, by means of any one of the
conventional molding processes. Similarly, in manufacturing the
electrical contacts of the present invention, a suitable metal
sheet may be subjected to a stamping process whereby a serial array
of the longitudinal contacts 12, including the dependent contact
blade portions 18 and the integral supporting terminal portions 20,
as well as a carrier strip 22, may be simply and economically
produced, the strip 22 being integrally connected to each of the
contact members 12 along the lower planar surface of the blade
portions 18, as particularly seen in FIG. 1. It will be noted that
the diametrical extent of the terminal portions 20 is less than
that of the blade portions 18 of the contacts 12, and that the
integral connection therebetween includes bevelled portions 21
which are disposed upon only two of the planar surfaces of contacts
12 and which serve a unique purpose which will be more fully
apparent hereinafter.
Since the stamped contacts are simple in structure and integral
with each other requiring no folding parts, they may be placed in a
very close spatial relationship so as to facilitate storage. For
example, the carrier strip 22, along with contacts 12, may be
rolled upon a spool, not shown, and may also be provided with a
plurality of apertures 24 which are adapted to cooperate, in
sprocket wheel fashion, with pins provided upon appropriate
automatic machinery, also not shown, which serves to unwind the
strip and contacts from the storage spool when it is desired to
insert the contacts within housing 10. The contacts may all be
simultaneously inserted within housing 10 while still attached to
carrier strip 22 after which the strip may be removed by
appropriately severing the connection between the strip and each
contact member 18, either by cutting, bending, or the like.
Referring now to FIGS. 1, 2, and 3, it will be seen that the
housing 10 is provided with two parallel rows of equally-spaced
vertically extending apertures which form receptacles for the
contacts 12, each of the apertures 26 within one row being
co-planar with a corresponding aperture 28 within the other row. In
addition, the housing portions 30, 32, and 34 defining the
apertures 26 and 28 therebetween, respectively, are of
progressively shorter height, and consequently, the housing 10 has
a step-like configuration in cross-section, as particularly seen in
FIG. 3, whereby the apertures 26 are seen to extend substantially
the entire height of the housing while the apertures 28 extend only
approximately one-half the height of the housing. In this manner,
subsequent to insertion of the contacts 12 within the housing
apertures 26 and 28, the housing portions 32 and 34 serve as
anvil-type means about which the terminal portions 20 of contacts
12 may be bent so as to extend in co-planar fashion, and laterally
of the housing 10, whereupon such portions 20 may subsequently be
secured within a printed circuit board 36 by any conventional
means, such as for example, solder 37. A pair of upstanding lugs 39
are integrally provided at each end of the housing through which
suitable fastening means may of course be passed in order to firmly
secure the PC board to housing 10, and to additionally support
board 36 relative to the housing, housing section 34 is integrally
provided with laterally extending flange means 41, board 36 being
supported upon the upper planar surface thereof.
In order to facilitate the entrance and retention of the contacts
12 within the housing 10, the housing portions 30, 32, and 34
defining the apertures 26 and 28, are respectively provided with
pairs of relatively convergent and parallel sidewall portions 38
and 40, when viewed perpendicular to a plane transverse to the
longitudinal axis of the housing, as seen in FIG. 3, the
diametrical extent of terminal portion 20 of contact 12 being
slightly less than that of aperture 26 defined between wall
portions 40, while the distance between wall portions 38 is
substantially greater than the diametrical extent of blade portions
18 of contacts 12.
The remaining pairs of sidewall portions of housing 10, defining
apertures 26 and 28, when viewed perpendicular to plane which
extends longitudinally of the housing 10, are seen to be quite
unlike sidewall portions 38 and 40, and include relatively parallel
sidewall portions 42 and 44 which correspond to, and have
diametrical extents slightly greater than, blade portions 18 and
terminal portions 20 of contacts 12, and a bevelled portion 46
interposed between portions 42 and 44 which of course corresponds
to the bevelled portion 21 of contacts 12, as seen in FIG. 4.
Sidewalls 44 extend the entire height of housing 10 so as to define
transversely extending slot means 47 (See FIGS. 1 and 2) which
serve to guide the laterally extending portions of terminals 20 and
maintain the same in co-planar alignment so as to facilitate proper
interconnection with printed circuit board 36.
Consequently, upon insertion of the contacts 12 within the housing
10, the contact blades 18 will be firmly seated and restrained from
any lateral movement in a longitudinal plane within housing 10 due
to the interengagement between bevelled portion 21 of contacts 12
and bevelled seating portion 46 of housing 10 as well as between
the blade 18 and wall portions 42, while concomitantly therewith,
lateral flexural movement of the contact blade portions 18 within a
transverse plane is permitted due to the location of wall portions
38 relative to the blades, as seen in FIG. 5, it being further
appreciated that terminal portions 20 are restrained from any
lateral movement due to the presence of wall portions 40 and 44.
The contacts are also restrained from any longitudinal movement
relative to housing 10 due to the interengagement between bevelled
portion 21 of contacts 12 and bevelled seating portion 46 of
housing 10, as well as the interengagement between terminal
portions 20 of contacts 12 and the upper planar surfaces 48 and 50
of housing portions 32 and 34, respectively, subsequent to the
bending of terminals 20.
Referring now to FIGS. 1, 2, 3 and 6 the significance of the
lateral flexural movement of the contact blades 18 within the
housing 10 of the present invention will now become apparent. In
order to insure that the mating contact members 12 and 16 within
the housings 10 and 14 will be relatively properly aligned, a pair
of dependent aligning pins 52 disposed along the longitudinal axis
of the housing, project downwardly from each end of housing 10, and
corresponding apertures 54 are provided within the end portions 56
of housing 14, whereupon insertion of pins 52 within apertures 54
serves to initially align housings 10 and 14 relative to one
another. In addition, housing 10 is further provided with dependent
skirt means 58 integrally formed with housing sections 30 and 34
such that the outer surfaces of skirts 58 are in effect
continuations of the outer surfaces of sections 30 and 34 while the
lateral extent between the skirt portions is slightly greater than
the lateral dimension of the central recessed section 60 of
substantially I-shaped housing 14, as particularly seen in FIG. 3,
whereby proper seating and alignment between the housings is
further facilitated, although some play therebetween is
nevertheless permitted as seen in FIG. 6 at 61. It will be noted
that the skirt does not extend the entire length of housing 10 and
in this manner the end portions 62 of housing 10 may be supported
upon the end sections 56 of housing 14, and similarly, the depth to
which skirt 58 extends is slightly greater than that to which
contact members 12 extend when firmly seated within housing 10
whereby skirt 58 additionally serves to protect the contact members
from structural damage.
Although the housings 10 and 14 may consequently be properly
supported and aligned relative to one another, as noted heretofore,
throughout the service life of a particular piece of electronic
equipment, the circuit boards housed therein may be exchanged an
unaccountable number of times wherein misaligned contact members
within the connector housings is a common occurence. However, as
particularly seen in FIG. 6, upon mating of the housings 10 and 14,
if the contact blades 18 should be out of alignment with the
corresponding apertures 64 and contact receptacles formed by
contact members 16 of housing 14, the upper bevelled portions
associated with apertures 64 will tend to deflect the contact
blades 18 so as to in fact become axially aligned within the
contact receptacles formed by contact members 16. Correspondingly,
since contact blades 18 are in effect mounted within housing 10 in
a cantilever fashion and are permitted to flex within a lateral
plane, within predetermined limits defined by wall portions 38, the
blades are able to be aligned with the mating contact members 16
without undergoing any structural damage, deformation or
fatique.
Thus, it may be seen that the mating contact connector housing
assembly of the present invention has important advantages over the
known prior art structures in that the connector housing
facilitates the rapid assembly therein of the mating contact
members and in turn the rapid assembly and interconnection with
mating housings and associate circuitry. In addition, the connector
housing includes various means to insure proper support and
alignment between such housing and mating housings as well as
between the mating housing contact members whereby the operational
mode of the particular electronic equipment is unimpeded.
Obviously, many modifications and variations of the present
invention are possible in light of the above teachings. It is to be
understood therefore that within the scope of the appended claims
the present invention may be practiced otherwise than as
specifically described herein.
* * * * *