U.S. patent number 3,810,258 [Application Number 05/270,803] was granted by the patent office on 1974-05-07 for quick connect electrical coupler.
Invention is credited to William R. Mathauser.
United States Patent |
3,810,258 |
Mathauser |
May 7, 1974 |
QUICK CONNECT ELECTRICAL COUPLER
Abstract
A unique quick connect electrical coupler, comprising a female
coupling half having electrical contact means, magnet means and
tapered recess means therein. A male coupling half having
electrical contact means and magnet means therein and tapered
projecting means adapted to be received in said recess means in
said female coupling half to automatically align said male and
female coupling halves relative to one another, said electrical
contact means and said magnet means in said male and female
coupling halves being in contacting alignment with one another when
said coupling halves are coupled together, and said tapered
projecting means and recess means preventing lateral displacement
of the coupling halves relative to one another when they are
coupled together.
Inventors: |
Mathauser; William R. (Sun
Valley, ID) |
Family
ID: |
23032866 |
Appl.
No.: |
05/270,803 |
Filed: |
July 11, 1972 |
Current U.S.
Class: |
439/39; 439/377;
439/289; 439/246 |
Current CPC
Class: |
H01R
13/6205 (20130101) |
Current International
Class: |
H01R
13/62 (20060101); H01r 011/30 () |
Field of
Search: |
;339/12R,12V,12L,12G,64R,64M,65,27,46,47R,47C,48,222 ;335/205,285
;248/26A |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Novosad; Stephen J.
Assistant Examiner: Hafer; Robert A.
Attorney, Agent or Firm: Shoemaker and Mattare
Claims
1. A quick connect, self-aligning electrical coupler comprising a
male coupler half and a female coupler half, ring shaped magnet
means in each coupler half, said magnet means in one coupler half
aligned with the magnet means in the other coupler half and
operable to releasably hold the coupler halves together, said
magnet means comprising the only means to hold the halves together,
a first electrical contact means in each coupler half, a conical
projection on said first electrical contact means in one coupler
half and a complementary, cone shaped recess in the first
electrical contact means in the other coupler half to receive the
projection and align the coupler halves relative to one another,
and second, aligned, ring shaped electrical contact means in the
coupler halves spaced radially outwardly from the first electrical
contact means, said ring shaped electrical contact means and ring
shaped magnet means enabling said coupler halves to be operatively
connected together in any
2. A quick connect electrical coupler as in claim 1, wherein each
coupler half has a front and back face and opposite edge portions,
said back face
3. A quick connect electrical coupler as in claim 2, wherein said
first electrical contact means in each coupler half comprises a
cylindrically shaped member extending from the front face to the
back face of the
4. A quick connect electrical coupler as in claim 3, wherein
insulating
5. A quick connect electrical coupler as in claim 4, wherein said
electrical contact means in each coupler half comprises said magnet
means.
6. A quick connect electrical coupler as in claim 4, wherein the
magnet means comprises an annular ring shaped magnet between the
cylindrical and
7. A quick connect electrical coupler comprising a male coupler
half and a female coupler half, each coupler half comprising an
elongate, rectangularly shaped member, at least three aligned,
spaced apart, electrical contact means in each coupler half spaced
along the length thereof and aligned with the contact means in the
other coupler half, said contact means comprising magnet means to
hold the coupler halves together, said magnet means comprising the
only means holding the coupler halves together, insulating means
between the spaced apart contact means in each half insulating the
contact means in each half from one another, and indexing means on
each coupler half including conically shaped projection means on
the contact means in one half and complementary, conically shaped
recess means in the contact means of the other half to receive
the
8. A quick connect electrical coupler comprising a first,
rectangularly shaped coupler half and a second rectangularly shaped
coupler half, each coupler half having a front and back face and
opposite edge portions, an insulating material on said back face
and opposite edge portion of each coupler half, a plurality of
aligned, parallel, cylindrically shaped electrical contact means in
each coupler half extending from the front face to the back face
thereof, a conical projection on the contact means in one coupler
half and a conical recess in the contact means on the other coupler
half of substantially the same size and shape as the projection to
receive the projection and index and align the coupler halves
together, insulating means between the contact means of each half
insulating the contacts of each half from one another, and aligned
magnet means in the coupler halves operable to releasably hold the
coupler halves together,
9. A quick connect electrical coupler comprising a first,
rectangularly shaped coupler half and a second rectangularly shaped
coupler half, each coupler half having a front and back face and
opposite edge portions, an insulating material on said back face
and opposite edge portion of each coupler half, a plurality of
aligned, parallel, cylindrically shaped electrical contact means in
each coupler half extending from the front face to the back face
thereof, a conical projection on the contact means in one coupler
half and a conical recess in the contact means on the other coupler
half of substantially the same size and shape as the projection to
receive the projection and index and align the coupler halves
together, insulating means between the contact means of each half
insulating the contacts of each half from one another, and aligned
magnet means in the coupler halves operable to releasably hold the
coupler halves together, said insulating means between the contact
means comprising the magnet means.
Description
BACKGROUND OF THE INVENTION
This invention relates to quick connect electrical couplers, and
more particularly, relates to a quick connect coupler for low
voltage electrical current, wherein magnet means is used to
maintain the coupler in connected relationship.
Conventional electrical couplers require matching or fitting of
male or female parts on the coupler sections, as for example, the
spaced slots and spaced projections on the receptacle and plug,
respectively, of a typical household electrical outlet fitting.
Such conventional couplers require careful hand and eye
coordination in order to properly match or fit the interfitting
projection and recess means thereon, and they are subject to damage
due to blows, pulls or other forces exerted thereon laterally or in
a direction other than normal to the axis of insertion of the
projections into the recesses. Further, the conventional couplings
must be provided with a substantial mechanical interlock between
the coupling halves to insure that the couplers or connectors do
not become disconnected; and, accordingly, excessive force is
frequently required in order to connect and/or disconnect the
couplings.
With the present invention, an economical and easy to use quick
connect electrical coupler is provided which eliminates all of the
aforementioned problems found in conventional electrical
couplers.
With the present invention, a pair of coupling halves or members
are provided, each having magnet means and electrical contact means
therein and with one of the members having a projection which
interfits into a recess in the other coupling member. The magnet
means in the coupling halves serve to securely hold the halves
together without requiring any mechanical interlock or the like,
and the interfitting projection and recess means automatically
aligns or indexes the coupling halves relative to one another so
that very little hand and eye coordination is required in order to
properly align and mate the coupling halves. In fact, when the
coupling halves are positioned in close proximity to one another,
the magnet means actually urge the coupling halves together and
into properly assembled relationship with a quick "snap"
action.
Further, in accordance with the present invention, the magnet means
may comprise either a permanent magnet or an electromagnet and may
be used as both the means for holding the coupling halves together
and as the electrical contact means in the coupling halves.
Moreover, the interfitting projection and recess means in the
coupling halves requires the coupling halves to be separated from
one another with a straight, axial pull and thus the surfaces must
be parted in a direction normal to each other and not with a shear
or lateral motion and the holding power of the magnets in the
coupling halves is accordingly substantially increased, thus
rendering the electrical coupler highly reliable in environments
where conventional electrical couplers might become dislodged due
to vibration or the like. Further, the self-indexing and magnetic
attraction between the coupling halves makes the coupler highly
desirable where simplicity and ease of coupling and uncoupling the
electrical connector is required. One example of use of the present
invention would be in a space vehicle or the like, wherein economy,
compactness, reliability and ease of operability are important
considerations in the design of all of the components in the space
craft, and particularly of connections in control circuits and the
like.
OBJECTS OF THE INVENTION
It is an object of this invention to provide a quick connect
electrical coupler wherein magnet means is used in the coupling
halves to hold the coupling halves together and interfitting
tapered projection and recess means are on the coupling halves to
automatically align the coupling halves relative to one another and
to prevent separation thereof by other than an axial pull or
movement therebetween.
Another object of this invention is to provide a quick connect
electrical coupler, wherein a pair of coupling members each having
magnet means and electrical contact means therein are held together
solely by the attraction between the magnets in the coupling halves
and wherein the coupling halves are automatically aligned relative
to one another by tapered interfitting projection and recess means
on the coupling halves.
A still further object of the invention is to provide a quick
connect electrical coupler which has magnet means therein to hold
the coupling halves together and wherein the coupling halves may be
connected together in any rotational position relative to one
another.
Yet another object of the invention is to provide a quick connect
electrical coupler wherein magnet means is used in the coupling
halves to hold the coupler together and wherein a plurality of
electrical contact means are provided in each of the coupling
halves for interconnecting a plurality of electrical circuits.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded perspective view of a first form of
electrical coupler in accordance with the invention.
FIG. 2 is an enlarged sectional exploded view of the coupler of
FIG. 1.
FIG. 3 is a front plan view of the male half of the coupler seen in
FIG. 2 and is taken along line 3--3.
FIG. 4 is an exploded perspective view of a second form of quick
connect electrical coupler in accordance with the invention.
FIG. 5 is a sectional end view of the coupler of FIG. 4.
FIG. 6 is a side sectional view of the coupler seen in FIG. 4.
FIG. 7 is an enlarged exploded sectional view of a third form of
quick connect electrical coupler, and;
FIG. 8 is a front plan view of the male coupler half taken along
line 8--8 in FIG. 7.
DETAILED DESCRIPTION OF THE INVENTION
In the drawings, wherein like reference numerals indicate like
parts throughout the several views, a first form of quick connect
electrical coupler is indicated generally at 10 in FIG. 1 and
comprises a generally circular, disc shaped male coupling half 11
and a generally circular, disc shaped female coupling half 12.
The male coupling half 11 has an annular, ring shaped magnet 13 and
an annular, ring shaped insulating spacer 14 disposed immediately
radially inwardly of the annular magnet 13 and in abutting contact
therewith. The magnet 13 has front and rear annular faces 13a and
13b, respectively, and the spacer 14 similarly has front and rear
faces 14a and 14b, respectively, lying in the same planes on the
face of magnet 13. A cylindrically shaped magnet 15 is disposed
radially inwardly of the insulating spacer 14 and in contact
therewith and has a forwardly projecting conical tip 16 thereon
extending beyond the plane of the front faces 13a and 14a of magnet
13 and spacer 14.
The female coupling half 12 is similarly constructed, and has a
magnet 13' and spacer 14' identical to the magnet 13 and spacer 14
in the male coupling half, except that the magnets 13 and 13' have
opposite polarity. Further, the female coupling half 12 has a
magnet 17 in the center thereof fitted within the insulating spacer
14 and has a conical recess 18 therein of substantially the same
size and shape as the conical tip 16 on the magnet 15 in the male
coupling half 11.
A pair of lead wires or cables 19 and 20 are connected with the
magnet 15 and magnet 13, respectively, in the male coupling half 11
and lead to a suitable point of use, or source of electrical
energy, as desired. A similar pair of wires or the like 21 and 22
are connected with the magnets 17 and 13' in the female coupling
half 12 and lead to a suitable point of use or to a source of
electrical energy.
The outer marginal edge and the rear face of the male coupler half
11, and the wires 19 and 20, are encased in a suitable insulating
material 23 such as plastic or the like. The outer marginal edge
and rear face of the female coupling half 12, and the wires 21 and
22, are also similarly encased in a suitable insulating material 24
such as plastic or the like. A radially outwardly extending flange
25 is provided on the radial marginal edge of the female coupling
half for connecting the female coupling half in an opening O or the
like in a suitable housing means, wall, partition, or the like 26
by means of rivets or the like 27 extended through the flange 25
and an adjacent portion of the housing or wall or the like 26.
A modified form of the invention is illustrated in FIGS. 4 through
6, wherein a multiple type coupler 28 is provided. The multiple
type coupler 28 comprises a male coupler half 29 and a female
coupler half 30. Both the male and female coupler halves are
elongate, rectangularly shaped members and the male coupling half
comprises a plurality of parallel, aligned magnets 31, each having
a conical, forwardly projecting tip 32 thereon. The magnets 31 are
embedded in an insulating material 33 with the conical tips 32
projecting from the front face of the insulating material 33 and
the opposite ends of the magnets 31 flush with the opposite or rear
face of the insulating material. Each magnet 31 has a wire 34
embedded in the rear end thereof and extending at a right angle
therefrom along the rear face of the male coupler half 29 for
connecting the magnets 31 with either a point of use of electricity
or with a suitable source of electricity, as desired. The top,
bottom and opposite end edges and rear face of the male coupler
half 29, and the wires 34 are encased or covered with a suitable
insulating material 35 such as plastic or rubber or the like.
The female coupler half 30 is similarly constructed, except that a
plurality of magnets 31' each having a conical recess 32' in the
forward end thereof, of substantially the same size and shape as
the conical tips 32 on the magnets 31 in the male coupling half,
are provided so that the male and female coupling halves may be
mated together.
Additionally, the female coupling half 30 includes an outwardly
directed flange 36 on the top and bottom and opposite end edges
thereof formed integrally with the coating or covering material 34,
for mounting the female coupling half 30 in an opening or the like
O in a wall, partition, or housing, or the like 26, by means of a
plurality of rivets or the like 27 extended through the flange 36
and an adjacent portion of the wall or partition or the like
26.
Further, in the invention illustrated in FIGS. 4 through 6, either
the insulating means 33 or the contact means 31 may comprise the
magnet means, as desired.
In FIGS. 7 and 8, a still further form of coupler 37 is
illustrated, and it is similar in shape and appearance to the form
of the invention illustrated in FIGS. 1 through 3. In this form of
the invention, however, the magnet means for holding the male and
female coupling halves 38 and 39 together comprises an annular,
ring shaped magnet 40 interposed between a center electrical
contact 41 of metal or the like and having a conical tip 42
thereon, and a peripheral electrical contact 43 of metal or the
like. The magnet 40 and peripheral contact 43 each have parallel
front and rear faces 40a and 40b, and 43a and 43b, respectively,
terminating in common, parallel planes. A pair of wires 44 and 45
are connected with the peripheral contact and the center contact,
respectively, for establishing communication between the contacts
and a suitable point of use or source of electrical energy, as
desired.
As in the previous embodiments of the invention, the peripheral
marginal edge and the rear face or surface of the male coupler half
and the wires 44 and 45 are encased in a suitable insulating
material 46 such as plastic or rubber or the like. The insulating
material also includes a pair of forwardly projecting, radially
spaced, annular walls 47 and 48 extending forwardly between the
metal contacts and magnet to insulate them from one another.
The female coupling half 39 is formed substantially identically to
the male coupling half, except that the center electrical contact
41' has a conical recess 42' therein of substantially the same size
and shape as the conical tip 42 on the center contact 41 of the
male coupling half. Additionally, the female coupling half 39
includes an annular, radially outwardly extending flange 49 on the
marginal peripheral portion thereof formed integrally with the
cover or case 46 for connecting or mounting the female coupling
half in a suitable opening O in a wall, partition, or housing 26 or
the like by means of a plurality of rivets or the like 27 extended
through the annular flange 49 and an adjacent portion of the wall
or partition or the like 26.
In all of the above forms of the invention, the magnets may
comprise permanent magnets or electromagnets as desired, and may
consist of any suitable magnet material such as Alnico, or a
ceramic type magnet, or the like.
Further, the size and particular shape of the couplers may be
varied without departing from the scope of the invention and as
many separate electrical contacts and/or magnets in each coupler
half may be provided, as desired, and the electrical contacts may
be suitably plated or coated with a suitable material to prevent or
retard corrosion.
Basically, the invention provides a quick connect electrical
coupler, wherein the male and female coupler halves are brought
into close proximity with one another, and the magnets in each of
the halves will then forcibly attract or draw the halves together
with a "snap" action and the tapered, interfitting recess and
projecting means automatically aligns the coupling halves with one
another and without requiring close hand and eye coordination to
connect the electrical coupler together. Further, the coupling
halves are prevented from being separated in a lateral direction,
and in at least two forms of the invention, the coupler halves may
be assembled together in any relative rotational position
therebetween.
As this invention may be embodied in several forms without
departing from the spirit or essential characteristics thereof, the
present embodiment is therefore illustrative and not restrictive,
since the scope of the invention is defined by the appended claims
rather than by the description preceding them, and all changes that
fall within the metes and bounds of the claims or that form their
functional as well as conjointly cooperative equivalents, are
therefore intended to be embraced by those claims.
* * * * *