U.S. patent number 3,641,482 [Application Number 05/049,656] was granted by the patent office on 1972-02-08 for plug connector for flat conductor strip line.
This patent grant is currently assigned to Kabel- und Metallwerke Gutehoffnungshutte Aktiengesellschaft. Invention is credited to Klaus Bretting.
United States Patent |
3,641,482 |
Bretting |
February 8, 1972 |
PLUG CONNECTOR FOR FLAT CONDUCTOR STRIP LINE
Abstract
A terminal connector for a flat conductor strip line having its
conductor strips in spaced-parallel arrangement, the terminal
portion of the strip being received in a flat connector
construction in which contacts are arranged for conductive
engagement with the respective conductors of the strip.
Inventors: |
Bretting; Klaus (Heroldsberg,
DT) |
Assignee: |
Kabel- und Metallwerke
Gutehoffnungshutte Aktiengesellschaft (Hannover,
DT)
|
Family
ID: |
5738468 |
Appl.
No.: |
05/049,656 |
Filed: |
June 25, 1970 |
Foreign Application Priority Data
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|
|
|
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Jul 1, 1969 [DT] |
|
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P 19 33 229.7 |
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Current U.S.
Class: |
439/499; 439/596;
439/460 |
Current CPC
Class: |
H01R
12/777 (20130101) |
Current International
Class: |
H01R
12/24 (20060101); H01R 12/00 (20060101); H01r
033/74 () |
Field of
Search: |
;339/17F,176F,195M,196M,208,210 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Champion; Marvin A.
Assistant Examiner: Staab; Lawrence J.
Claims
I claim:
1. A connector for a flat multiple conductor strip, said connector
comprising a pair of opposed plate members, means for detachably
interconnecting said plate members, means on said plate members for
receiving a terminal portion of said strip therebetween, a
plurality of contact members, means on said plate members for
locating said contact members in respective alignment with the
terminal ends of said conductors, and means on said plate members
for retaining said contact members against movement relative
thereto, said last-mentioned means comprising a series of
projections extending from the inner face of one plate member and a
series of projections extending from the inner face of the other
plate member, each of said contact members being formed with a
recess, said projections on said plate members being located
whereby each projection on one plate member in paired relation to a
projection on the other plate member is received in and fills the
recess of a contact member.
Description
BACKGROUND OF THE INVENTION
Flat conductor strip lines are known in the art; the same being
made up of a plurality of flat rolled conductors of copper or other
suitable metal or alloy. Such conductor strips have high
flexibility, good heat conduction and excellent current
conductivity. The conductor strips are insulated from each other
and maintained in parallel relation by dielectric foil in enclosing
relation to the spaced strips.
Such lines must be provided with terminal connectors of either the
plug or socket type. In the case of conventional wire conductors of
circular cross section, each wire is individually soldered, welded
or gripped by the respective connector elements of a conventional
connector plug or socket. This procedure can also be applied to the
flat conductor strip lines, although with the usual large number of
strips in such conductor lines, production costs are excessive.
Further, with such strip lines, each conductor must have terminal
portions of insulation removed to expose the conductor. This
requires insulation stripping devices having heated knives for
cutting the insulation, followed by peeling the insulating foil.
Since residual insulation is left on the conductors, the same is
removed by dipping in a bath of phosphoric acid at a temperature of
about 100.degree. C. Such technique requires special care inasmuch
as harmful chemicals are involved and production rates are
relatively slow and expensive.
Accordingly, an object of this invention is to provide an improved
connector for flat conductor strip lines, which can be assembled
with the terminal end portion of the line in a relatively simple
manner, with high rates of production at reduced production
costs.
Another object of this invention is to provide a connector of the
character described, which is flat and of minimal thickness so as
to have dimensions close to the dimensions of the terminal portion
of the strip line.
A further object of this invention is to provide a connector of the
character described, wherein assembly of the same with the terminal
portion of the strip line is facilitated and the contact elements
of the connector are readily joined to the respective conductors of
the strip line.
Other objects of this invention will in part be obvious and in part
hereinafter pointed out.
DESCRIPTION OF THE DRAWING
FIG. 1 is a plan view showing the assembly of a multiconductor
strip of the flat type and a connector therefor embodying the
invention;
FIG. 2 is a side elevational view of the connector in its open
condition.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
As shown in the drawing and particularly, FIGS. 1 and 2, 10
designates a flat connector plug embodying the invention. The same
provides connector terminal means for a flat conductor strip
generally indicated at 11. Strip 11 comprises a plurality of thin,
flat conductors, formed of rolled copper or other suitable
conductive metal or material. For the purpose of illustration, four
such conductors are shown at 12, 13, 14 and 15; although there
actually may be as many as 15 or more such conductors.
The conductors 12-15 are arranged in parallel, and insulated from
each other by dielectric foils 16, 17, all in a manner known in the
art. When strip 11 is to be assembled with connector 10, the
terminal portion 18 of said strip 11 is cut transversely in a
precise straight line, as by suitable punching or cutting devices,
which also exposes the ends of conductors 12-15.
Connector 10 comprises a pair of molded synthetic resin plates 19,
20 of rectangular shape and interconnected by hinge members 21, for
movement from a separated, open condition, to an opposed, closed
condition, with terminal portion 18 of strip 11 engaged
therebetween.
Connector plate 19 is recessed on its inner face, as at 22, and
plate 20 is recessed on its inner face, as at 23, to thereby
receive in the opposed recesses the terminal portion 18 of strip
11. The plates 19, 20 are held together in their closed condition
by studs 24 on plate 19 which are frictionally received in
registering recesses 25 on plate 20.
The strip 11 is formed with openings 26 located between conductors
12, 13; and 14, 15; plate 20 having projections 27 on its inner
face for registering with said openings 26 in strip 11, to thereby
locate the strip and retain the same against longitudinal
movement.
Blade contacts 12A-15A are located between plates 19, 20 in
respective alignment with conductors 12-15. Plate 19 is recessed at
28 and plate 20 is recessed at 29, to receive in the paired,
opposed recesses, the blade contacts 12A-15A. Each of the blade
contacts 12A-15A is formed with a rectangular notch 30 along one
edge thereof.
Plate 19 is formed with projections 31 receivable in notches 30 of
blade contacts 12A-15A and incompletely filling said notches. Plate
20 is formed with projections 32 located to be received in the
remainder of incompletely filled notches 30, when the plates 19, 20
are in their closed condition. Thus, each pair of projections 31,
32 serves to locate and retain the respective blade contacts
12A-15A against movement.
The contacts 12A-15A may be preassembled with conductors 12-15,
before assembly with connector 10. To this end, the contacts
12A-15a and conductors 12-15 of terminal portion 18 of strip 11,
are arranged in a suitable jig, not shown, with proper spacing of
the conductors 12-15 and contacts 12A-15A corresponding to the
spacing in connector 10. Also, each of the contacts are in abutting
end relation to the forward ends of the conductors.
At this time, strip 11 may be formed with openings 26 in the
dielectric foils 16, 17, between the paired conductors 12, 13 and
14, 15. The formation of openings 26 also exposes small portions of
said conductors at the rim of said openings. This allows welding
electrodes, not shown, to be inserted therein for electrical
contact with the conductors. The other electrodes of the welding
means, not shown, are applied to contact blades 12A-15A, so that
suitable current impulses are effective to weld each of conductors
12, 15 to the corresponding contact blades 12A-15A.
The completed preassembly of conductors and contact blades, may now
be disposed between plates 19, 20, as described above; the plates
then being closed and retained in a closed condition by the studs
24 received in openings 25.
It is understood that the conductors 12-15 and blades 12A-15A may
be interconnected or welded by other known procedures, in which the
openings 26 in strip 11 are not involved. In lieu of locking studs
24, the hinges 21 may be spring loaded to retain the plates 19, 20
in their closed condition.
* * * * *