U.S. patent number 3,670,294 [Application Number 05/081,847] was granted by the patent office on 1972-06-13 for multiple contact electrical connector.
This patent grant is currently assigned to Sylvania Electric Products Inc.. Invention is credited to Thomas E. Gannoe, Gordon L. Johnson.
United States Patent |
3,670,294 |
Johnson , et al. |
June 13, 1972 |
MULTIPLE CONTACT ELECTRICAL CONNECTOR
Abstract
An electrical connector assembly consisting of a connector block
of insulative material having a plurality of connector pins
established therein. The pin receiving openings in the block each
have a cylindrical shape portion which extends into the block a
predetermined distance until it interconnects and aligns with a
rectangular shaped portion which extends on through to the opposing
surface of the block. The connector pins for this assembly each
consist of a cylindrical shaped male end, a centrally located
retaining portion, and a rectangular shaped wirewrap end.
Inventors: |
Johnson; Gordon L. (Jamestown,
NY), Gannoe; Thomas E. (Warren, PA) |
Assignee: |
Sylvania Electric Products Inc.
(N/A)
|
Family
ID: |
22166783 |
Appl.
No.: |
05/081,847 |
Filed: |
October 19, 1970 |
Current U.S.
Class: |
439/697; 439/888;
439/751 |
Current CPC
Class: |
H01R
13/41 (20130101) |
Current International
Class: |
H01R
13/41 (20060101); H01R 13/40 (20060101); H01r
013/50 (); H01r 009/08 () |
Field of
Search: |
;339/17R,17C,18R,18B,18C,150,156,198R,198C,198E,198K,221,275,276A |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Leppink; James A.
Assistant Examiner: Staab; Lawrence J.
Claims
We claim:
1. An electrical connector assembly comprising:
an insulating body having a plurality of pin receiving openings
located therein and positioned on a first surface of said
insulating body, each of said pin receiving openings having a
common axis substantially perpendicular to said first surface of
said body, a substantially cylindrical receiving portion extending
a predetermined distance into said insulating body along said
common axis, and a substantially rectangular receiving portion
extending a predetermined distance into said insulating body
substantially perpendicular to a second surface of said insulating
body, said second surface opposing and substantially parallel to
said first surface, whereby each of said rectangular receiving
portions interconnect and align with each of said cylindrical
receiving portions thereby sharing said common axis; and
a plurality of connector pins of electrically conductive material
established within said pin receiving openings of said insulating
body, each of said connector pins having a horizontal axis, said
horizontal axis being coaxial with said common axis of said pin
receiving openings, a substantially cylindrical shaped male end, a
centrally located retaining portion, and a substantially
rectangular shaped wirewrap end, said centrally located retaining
portion comprising a rectangular straight member having at least
two retention portions, each of said retention portions having a
plurality of protruding flat-walled members extending from each
edge of said rectangular straight member into corresponding corners
of said substantially rectangular receiving portions, each of said
flat-walled members having two outstanding edges, each of said
outstanding edges contacting an internal wall of said substantially
rectangular receiving portions of said pin receiving openings at
substantially equal distances from said corresponding corners of
said openings, thereby providing an eight point restricting
contact.
2. The electrical connector assembly according to claim 1 in which
each of said substantially cylindrical shaped male ends of said
connector pins is joined to each of said centrally located
retaining portions of said connector pins by welding.
3. The electrical connector assembly according to claim 1 in which
said retention portions of said centrally located retaining
portions of said connector pins are spaced a predetermined distance
apart along said rectangular straight member, thereby substantially
preventing movement of said connector pins transverse to said
horizontal axis of said pins when said pins are established within
said pin receiving openings of said insulating body.
4. A connector pin of electrically conductive material for
insertion into a pin receiving opening located within an insulating
body, said pin receiving opening having a substantially rectangular
receiving portion, said connector pin comprising:
a substantially cylindrical shaped male end, a centrally located
retaining portion, and a substantially rectangular shaped wirewrap
end, said centrally located retaining portion comprising a
rectangular straight member having at least two retention portions,
each of said retention portions having a plurality of protruding
flat-walled members extending from each edge of said rectangular
straight member into corresponding corners of said substantially
rectangular receiving portions, each of said flat-walled members
having two outstanding edges, each of said outstanding edges
contacting an internal wall of said substantially rectangular
receiving portions of said pin receiving openings at substantially
equal distances from said corresponding corners of said openings,
thereby providing an eight point restricting contact.
Description
BACKGROUND OF THE INVENTION
This invention relates to electrical connectors and more
particularly to multiple contact electrical connectors. The better
known connectors of this type consist of a connector block of
insulative material having a plurality of connector pins of
electrically conductive material located within a corresponding
number of pin receiving openings within the block. These openings
are usually established according to a designated pattern. To
assure ease of repair for this type of connection, it is desirable
to design the connector pins so that their removal from the
corresponding pin receiving openings is accomplished without
difficulty.
Connector pins of the prior art have usually been manufactured of a
dual gage strip material which is consequently rolled and formed to
the desirable configuration. While this process has resulted in an
elaborate pin design, the value of such a design, when compared to
the cost for its manufacture, remains questionable. One particular
reason for this is that castings which will accept these pins
usually require mold designs with intricately shaped core pins for
each half of the mold. These core pins in turn, must approach from
opposing sides of the casting and meet approximately near the
center of the cavity in order that the pin receiving openings
conform to the basic configuration of the connector pins.
In addition to increased manufacturing costs for casting the block
to accept these connector pins, ease of repair of the assembled
corrector is also reduced by the difficulty this elaborate design
creates in removing the pin from the block.
It is, therefore, believed that a multiple contact electrical
connector having a connector pin of simple design which promotes
ease of removal of the pin from the connector block, as well as
facilitating reduced manufacturing costs in production of the
blocks to accept these pins, would be an advancement in the
art.
OBJECTS AND SUMMARY OF THE INVENTION
Consequently, it is an object of this invention to provide an
improved multiple contact electrical connector.
It is a further object of this invention to provide an improved
multiple contact electrical connector employing an insulating body
having a plurality of connector pins established therein.
It is still a further object of this invention to provide an
electrical connector which is simpler to fabricate and can be
produced at less cost than those connectors known in the prior
art.
In accordance with one aspect of this invention, there is provided
a multiple contact electrical connector consisting of an insulating
body having a plurality of connector pins of electrically
conductive material located therein. These pins, which consist of a
cylindrical male end, a centrally located retaining portion, and an
elongated wirewrap end, are located within a plurality of
corresponding pin receiving openings established in a designated
pattern within the insulating body. To provide a means for
maintaining the pins in proper alignment within their respective
openings, the centrally located retaining portions are each
provided with at least two retention portions, these portions
having a plurality of protruding flat walled members which mate
with the internal walls of the rectangular shaped portion of the
pin receiving openings.
For a better understanding of the present invention, together with
other and further objects, advantages, and capabilities thereof,
reference is made to the following specification and appended
claims in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a partial elevational view, in section, of the present
invention, as taken along the lines 2--2 in FIG. 1;
FIG. 3 is a sectional view taken along the line 3--3 in FIG. 2
showing the relative position of the retention portion of the
connector pin as it is positioned within the pin receiving opening;
and
FIG. 4 is an isometric view of the connector pin of the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
As previously mentioned, there is provided an electrical connector
assembly comprising an insulating body having a plurality of pin
receiving openings formed therein. Within each of these openings is
located a connector pin, this pin having a cylindrical male end, a
central retaining portion, and an elongated rectangular wirewrap
end. To more fully illustrate the previously described connector, a
detailed description of the drawings is provided.
Referring first to FIG. 1, there is shown the assembled multiple
contact connector 11, in accordance with the present invention.
Connector 11 comprises an insulating body 13, a plurality of pin
receiving openings 15, and a corresponding number of connector pins
17. Holes 19 are provided to assist in aligning the insulating body
with a corresponding connector block for a multi-circuit electrical
hookup. These holes may also be used to align the insulating body,
with contacts intact, to an automatic wiring machine, thereby
providing a much faster means for completing the multiple circuit
connections.
In FIG. 2 can be seen a partial cross-sectional view of one of the
connector pins 17 as it is in position within pin receiving opening
15 in the insulating body 13. Pin receiving opening 15 consists of
a substantially cylindrical shaped portion 21 which extends into
the insulating body 13 from upper surface 14 along axis 18 until it
interconnects with substantially rectangular shaped portion 23
which, in turn, extends on through to opposing parallel surface 16.
Axis 18, which is substantially perpendicular to upper surface 14,
as well as lower opposing surface 16, is common to both cylindrical
shaped portion 21 and rectangular shaped portion 23, and also
serves as the axis for connector pin 17.
Connector pin 17 comprises a substantially cylindrical shaped male
end 25, a centrally located retaining portion 27, and a
substantially rectangular shaped wire-wrap end 29.
The pin is firmly established within pin receiving opening 15 by
the two retention portions 31 and 31', respectively. These
retention portions are spaced a predetermined distance apart on the
rectangular straight member 33 which, in turn, assures proper
alignment of the pin along axis 18.
FIG. 3 shows, in cross-section, the position of the retention
portion 31 as it is within the substantially rectangular shaped
portion 23 of pin receiving opening 15. Portion 31 comprises a
plurality of protruding flat-walled members 37 which extend from
rectangular straight member 33 into the corresponding corners 24 of
substantially rectangular shaped portion 23 of opening 15. As can
be seen in FIG. 3, these flat-walled members 37 extend to the
corners at a prescribed angle in order that each of their two
leading edges 39 contact the internal walls 22 at approximately
equal distances from the corner 24. This will assure a steady,
reliable fit between the connector pin 17 and the insulating body
13.
In FIG. 4 can be seen an isometric view of one of the connector
pins 17. Substantially cylindrical shaped male end 25 is joined to
centrally located retaining portion 27 at jointure 35. Although
other alternatives are possible, welding is the preferred method of
making this connection. Protruding flat-walled members 37 and 37'
of retention portions 31 and 31' respectively, are more clearly
shown in this view. Substantially rectangular shaped wirewrap end
29 has an angled nose portion 30 which is formed in such a manner
so as to more readily accept the wire terminal ends to which it
will be joined.
While there have been shown and described what are presently
considered the preferred embodiments of this invention, it is
obvious to those skilled in the art that various changes and
modifications may be made therein without departing from the scope
of the invention as defined by the following claims.
* * * * *