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Publication numberUS3144527 A
Publication typeGrant
Publication dateAug 11, 1964
Filing dateSep 13, 1961
Priority dateSep 13, 1961
Publication numberUS 3144527 A, US 3144527A, US-A-3144527, US3144527 A, US3144527A
InventorsTolegian Manuel J
Original AssigneeTolegian Manuel J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Magnetic electrical coupling
US 3144527 A
Abstract  available in
Images(1)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Aug. 11, 1964 M. .1. TOLEGIAN MAGNETIC ELECTRICAL COUPLING Filed Sept. 13, 1961 INVENIOR MANUEL. J To LEG-HAN M ATTORNEYS United States Patent 3,144,527 MAGNETIC ELECTRICAL COUPLING Manuel J. Tolegian, 396i Glenridge Drive, Sherman Oaks, Calif. Filed Sept. 13, 1961, Ser. No. 137,819 6 Claims. (13]. Nil-51.09)

This invention relates in general to new and useful improvements in electrical fittings, and more specifically to a novel magnetic electrical connector.

This invention particularly relates to an electrical connector which is suitable for remote coupling. One of the major disadvantages of existing types of connectors is the fact that the connectors must be aligned in advance before they may be assembled. There are many places where it is difiicult to accomplish this. This is particularly true in installations wherein the elements of a connector cannot be assembled by hand, but must be manipulated with mechanical devices. An example of this is radioactive rooms and the like.

In view of the foregoing, it is the primary object of this invention to provide an electrical connector which is of a construction wherein the two halves thereof are automatically alignable so that it is merely necessary to move the two halves into engagement with each other, at which time the halves align with each other and provide the necessary electrical connection.

Another object of this invention is to provide a novel electrical connector of the type wherein the connection between the receptacle and plug of the connector is accomplished by means of magnets, and the receptacle includes normally electrically isolated contacts, which contacts are recessed within the fitting of the receptacle so as to prevent accidental touching of the contacts.

Still another object of this invention is to provide an electrical connector of the type wherein magnets are employed for connecting together the two halves of the connector, the connector further utilizing one of the magnets for moving contacts into engagement with one another 'so as to energize normally electrically isolated contacts to complete the electric circuit as the two halves of the connector are moved together.

A further object of this invention is to provide a novel magnetic electrical connector wherein the receptacle and plug of the connector are provided with magnets, each of the magnets having a single north pole and a single south pole and the magnets being securely connected to the fittings thereof wherein the magnets are operable to align the plug and receptacle of which the magnets are parts to assure proper alignment of the contacts of the connector.

i A still further object of this invention is to provide anovel magnetic electrical connector having safety features incorporated therein to prevent the accidental energization of exposed contacts, the receptacle of the connector including normally electrically isolated contacts and. electrically energizedv contacts underlying the normally electrically isolated contacts for movement'intoengagement therewith, and a magnet operable to move the two sets of contacts into engagement with one anotherto complete the circuits between the sets of contacts, and there being a magnet attractive plateremote from the contacts normally holding the magnet in an inoperative position until the magnet is attracted to an operable position by a like magnet in the plug half of the electrical connector.

With the above and other objects in view that will hereinafter appear, the nature of-the invention will be more clearly understood by reference to the following detailed description, the appended claims and the several views illustrated in the accompanying drawing:

' In the drawing:

FIGURE 1 is a perspective view of an electrical connector in accordance with the invention, with the plug and receptacle thereof disassembled.

FIGURE 2 is an enlarged vertical sectional view taken through the electrical connector of FIGURE 1 and shows the specific details thereof.

FIGURE 3 is an enlarged fragmentary horizontal sectional view taken along the line 33 of FIGURE 2, and shows the specific mounting of the magnet of the receptacle to permit movement thereof without rotation.

FIGURE 4 is an enlarged fragmentary vertical sectional view of an electrical connector wherein the plug element is in the form of a light bulb, the two parts of the connector being separated.

Referring now to the drawings in detail, it will be seen that there is illustrated in FIGURES 1 and 2 the details of an electrical connector, generally referred to by the numeral 5, for the purpose of connecting together two cables. The electrical connector includes a receptacle, generally referred to by the numeral 6, and a plug, generally referred to by the numeral 7.

The receptacle 6 includes a fitting 8 which is illustrated as being formed of an insulating material, such as plastic. The upper end of the fitting 8, as illustrated in FIGURE 2, is of a tubular construction. A disk 9 of insulating material extends across the upper portion of the fitting 8 in recessed relation. The disk 9 carries a plurality of contacts 10, 11 and 12 which are disposed in insulated electrically isolated relation. I

A contact 13 underlies the contact 10 and is intended to be engaged with the contact 10 to electrically connect the contact 10 in an electrical circuit of which the receptacle 6 is a part. The contact 13 is carried by a resilient conductor 14 which extends down through the fitting 8 and has a terminal 15 connected thereto. The terminal 15 serves to connect a conductor 16 of a cable (not shown) to the conductor 14 and the contact 13. Another conductor 17 underlies the contact 12 and is resil iently mounted for movement toward and away from the contact 12. The contact 17 is carried by a resilient conductor 18 which is embedded in the fitting 8 remote from the conductor 14 and which terminates in a terminal 19 to which a conductor 20 is connected. The conductor 20 is part of the same cable as the conductor 16.

A central rod 21 extends through the center of the fitting 8 and is vertically movable. The rod 21, as is best shown in FIGURE 3, is of a key construction so that rotation thereof is prevented. The upper end of the rod 21 is provided with a contact 22 which underlies the contact 11 and is movable into engagement therewith, as is shown in FIGURE 2 A fastener 23 connects the lower end of the rod 21 to a resilient conductor 24. The opposite end of the conductor 24 is provided with a terminal 25 to which there is connected a conductor 26. The conductor 26 is part of the same cable as are the conductors 16 and 20.

' The contacts 13, 17 and 22 are normally spaced below the respective ones of the contacts 10, 11 and 12. A magnet 27 is carried by the upper part of the rod 21 and is vertically movable to move the rod 21 upwardly so that the contact 22 engages the contact 11. The upward movement of the magnet 27 also results in the upward movement of the contacts 13 and 17 to engage the contacts 10 and 12, respectively, as is shown in FIGURE 2.

The magnet 27 is normally in a retracted position with the result that the contacts 10, 11 and 12 are not engaged by other contacts and are electrically isolated. In order to assure the retracted position of the magnet 27 when the connector 5 is not assembled, a magnet attractive plate 28 is suitably mounted within the fitting 8 beneath the magnet 27. In the unconnected condition of the coupling 8, the magnet 27 is attracted to the plate 28 and releases the contacts 13, 22 and 17 from their respective one of the isolated contacts 10, 11 and 12.

The plug 7 includes a housing 29 in which there is positioned a'fitt'ing 30 formed of electrically insulating material. A magnet 31 corresponding to the magnet 27 is positioned in the lower portion of the fitting 30. A plurality of contacts 32, '33 and 34 open through the bottom face of the magnet 31. .Suitable conductors 35 of a cable 36 are connected to the contacts '32, 33 and 34. I

In use, the plug 7 would normally be suspended by the cable 36. It is then merely necessary to manipulate the receptacle 6 so that it is generally aligned with the plug 7. Each of the magnets 27 and 31 has a Single north pole and a single south pole. As the magnets 27 and 31 approach one another, the entire plug 29 will rotate about the axis of the cable 36 with the result that the plug 7 'will be properly oriented with respect to the receptacle 6 so that the contacts 32, 33 and '34 will engage the contacts 10, 11 and 12, respectively. It will thus be seen that it is merely necessary to generally align the receptacle 6 in an axial direction with respect to the plug 7, at which time the plug 7 will be properly oriented with respect to the receptacle 6and the two parts moved together by'the attractive'forces of the magnets 27 and 31. The two halves of the connector will be retained in the assembled position of FIGURE 2 by the forces of the magnets 27 and 31.

It is to be understood that the magnets 27 and 31 are ceramic magnets and thus are formed of 'an insulating material.

In FIGURE 4, there is illustrated a modified fornrof connector, which is generally referred to by the numeral 37. The connector 37 includes a receptacle 38 which is identical with the receptacle 6 with the exception that the contact 17, the conductor 18, the terminal 19 and the conductor 20 are eliminated, only two wires being necessaryfor the receptacle 38.

The other part of the connector 37 is in the form of a lightbulb 39 which includes a base 40 having a magnet 41 therein. The magnet 41 is provided with a pair of contacts 42 and 43 which are engageablewith respective contacts of the receptacle 38. The operation of the connector 37 is identical with that of the connector 5 and need not be described in'more detail.

From the foregoing, it will be apparent that there have been devised novel electrical connectors for accomplishing the desired end. Although only two embodiments of theinvention have been illustrated, it is to 'be understood that other modifications may be made therein within the spirit and scope of the invention, as defined in the appended claims.

I claim:

1. An electrical connector of the two-part type, comprising a first connector fitting having a tubular body portion, an outwardly directed contact plate carried by said tubular body portion, said contact plate being of nonconductive material and having a pluralityof electrically isolated current carrying first contacts extending therethrough, a plurality of electrically isolated second contacts positioned inwardly of said contact plate, each of said second contactsbeing in substantial alignment with one of said first contacts and being movable toward and away from said contact plate into and out of engagement with its corresponding first contact, each of. said second contacts being adapted'to be connected to an electrical conductor, a first magnet in 'said tubular body portion disposed inwardly of said plurality of said second contacts and movable toward and away from said contact plate, said econd contacts being between said first magnet and said contact plate, whereby when said magnet is moved toward said contact plate, said second contacts will be moved into electrical engagement with said first contacts to energize the same, said first magnet having its magnetic axis extending transversely of the direction of movement of said second contacts and said first magnet, a second connector fitting engageable with the contact plate of said first fitting, said second connector fitting having a plurality of exposed contacts positioned for electrical engagement with said first contacts when said fittings are engaged, a second magnet carried by said second connector fitting, said second magnet having its magnetic axis disposed substantially parallel to the magnetic axis of said first magnet, and means for preventing the rotation of each of said magnets relative to its respective fitting.

2. An electrical connector of the two-part type comprising, a firstconnector fitting having a tubular body portion, an outwardly directed contact plate carried'by said tubular body portion, said contact plate being of non-conductive material and having a plurality of electrically isolated current carrying first contacts extending therethrough, a plurality of electrically isolated second contacts positioned inwardly of said contact plate, each of said second contacts being in substantial alignment with one of said first contacts and being movable toward and away from said contact plate into and out of engagement with its corresponding first contact, each of said second contacts being adapted to be connected to an electrical conductor, a first magnet in said tubular body portion disposed inwardly of said plurality of said second contacts and movable toward and away from said contact plate, saidsecond contacts being between said magnet and said contactplate, whereby when said first magnet is moved toward said contact'plate, said second contacts will be moved into electrical engagement with said first contacts to energize the same, amagnetic attractive plate positioned in said tubular body inwardly of said first magnet to-normally retain said first magnet in a retracted position to prevent the accidental energization of said first contacts, a secondconnector fitting .engageable with the contact plate of said first fitting, said second connector fitting having a-pluralityof exposed contacts positioned for electrical engagement with said first contacts when said fittings are'engaged, and a second magnet car ried by said second connector fitting.

3. An electrical connector as set forth in claim 2, wherein said contact plateis recessed Within said first connector fitting and the outer end of said second fitting is received in said recessin said first fitting.

4..An electrical connector. as set forth in claim 2, wherein each of said first and second magnets has its magnetic axis extending transversely of the direction of movement of said second contacts and said first magnet, and wherein means is provided for preventing rotation of each of said magnets relative to its respective fitting.

5. An electrical connector as set .forth in claim 1, wherein the exposed contacts of one of said fittings are disposed in a recess in said one of said fittings and the portion of said other of said fittings carrying its exposed contacts is received in said recess.

6. An electrical connector as set forth in clairn 1, said first and second magnets being circular and of ceramic magnetic material.

France Feb. 29, 1960

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2234982 *Apr 7, 1939Mar 18, 1941Ross Donald SFlush floor electric outlet
US2573920 *Apr 25, 1949Nov 6, 1951William McleodCoupling actuated magnetic switch
US2767278 *Jun 29, 1951Oct 16, 1956Douglas CollinsMagnetic lock switch for starter and ignition circuits
FR1226943A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3200320 *Nov 13, 1962Aug 10, 1965Mallory & Co Inc P RCharging means with magnetic contacts for battery operated appliances
US3447249 *May 5, 1966Jun 3, 1969Intertrading Corp EstablishmenElectronic building set
US3521216 *Jun 19, 1968Jul 21, 1970Tolegian Manuel JerairMagnetic plug and socket assembly
US3583304 *Sep 16, 1968Jun 8, 1971Polaroid CorpPhotographic camera
US3706882 *Feb 23, 1971Dec 19, 1972Eby George WEmergency signal light with magnetic contacts
US4156265 *Feb 22, 1977May 22, 1979Rose Manning ISafety sockets and loads
US4719334 *Jul 12, 1985Jan 12, 1988Geka-Werk Reinhold Klein AgConnection installation for a cordless electric appliance
US4844582 *Dec 9, 1987Jul 4, 1989Giannini Gabriel MHybrid electro-optical connectors
US4966556 *Jun 13, 1989Oct 30, 1990General Datacomm, Inc.Electrical connector for direct connection to plated through holes in circuit board
US5154509 *Jan 15, 1992Oct 13, 1992291, Inc.Low voltage magnetic track light system
US5215471 *May 27, 1992Jun 1, 1993General Datacomm, Inc.Electrical connectors having tapered spring contact elements for direct mating to holes
US5256073 *May 27, 1992Oct 26, 1993General Datacomm, Inc.Electrical connectors for direct connection to plated through holes in circuit board
US5366380 *Mar 29, 1993Nov 22, 1994General Datacomm, Inc.Spring biased tapered contact elements for electrical connectors and integrated circuit packages
US5401175 *Jun 25, 1993Mar 28, 1995M/A-Com, Inc.Magnetic coaxial connector
US5425649 *Oct 26, 1993Jun 20, 1995General Datacomm, Inc.Connector system having switching and testing functions using tapered spring contact elements and actuators therefor
US7497693 *Nov 30, 2007Mar 3, 2009Hon Hai Precision Ind. Co., Ltd.Electrical interconnection system using magnetic retention
US7566224 *Nov 2, 2007Jul 28, 2009Hon Hai Precision Ind. Co., Ltd.Electrical connector assembly with magnetic retention device
US7901216Oct 16, 2009Mar 8, 2011Apple Inc.Magnetic connector for electronic device
US8087939Feb 15, 2011Jan 3, 2012Apple Inc.Magnetic connector for electronic device
US8177560Dec 13, 2011May 15, 2012Apple Inc.Magnetic connector for electronic device
US8348678Jan 11, 2010Jan 8, 2013Automotive Industrial Marketing Corp.Magnetic cable connector systems
US8382486 *Dec 22, 2010Feb 26, 2013Research In Motion LimitedSelf-orienting electrical connector
US8435042Mar 16, 2012May 7, 2013Apple Inc.Magnetic connector for electronic device
US8454372 *Nov 11, 2011Jun 4, 2013Fu Tai Hua Industry (Shenzhen) Co., Ltd.Electrical connector with power plug and power socket
US8497753Dec 8, 2009Jul 30, 2013Apple Inc.Electromagnetic connector for electronic device
US8535088Oct 20, 2009Sep 17, 2013Apple Inc.Magnetic connector having a unitary housing
US8582791Apr 7, 2011Nov 12, 2013Audiotoniq, Inc.Hearing aid and circuit for detecting a connector
US8690582Sep 14, 2012Apr 8, 2014Apple Inc.Magnetic connector for electronic device
US8702316Oct 22, 2010Apr 22, 2014Apple Inc.Magnetic connector with optical signal path
US8770857Sep 15, 2012Jul 8, 2014Apple Inc.Magnetic connector with optical signal path
US8888500Oct 3, 2011Nov 18, 2014Apple Inc.Robust magnetic connector
US8970332Jul 29, 2013Mar 3, 2015Apple Inc.Electromagnetic connector for electronic device
US9065205Apr 27, 2012Jun 23, 2015Apple Inc.Connector insert having a cable crimp portion with protrusions and a receptacle having label in the front
US9112304Mar 18, 2014Aug 18, 2015Apple Inc.Magnetic connector for electronic device
US9225126 *Apr 9, 2013Dec 29, 2015Magno Plug Products Inc.Magnetically actuated AC power connector
US9281612Sep 17, 2013Mar 8, 2016Apple Inc.Magnetic connector having a unitary housing
US9461403Nov 17, 2014Oct 4, 2016Apple Inc.Robust magnetic connector
US9500350 *Oct 25, 2013Nov 22, 2016Nthdegree Technologies Worldwide Inc.Methods and apparatus for providing modular functionality in a lighting assembly
US9634428Mar 2, 2015Apr 25, 2017Apple Inc.Electromagnetic connector for electronic device
US9651202Mar 21, 2013May 16, 2017Te Connectivity Nederland BvContact element, clamping element, base and arrangement for holding and contacting an LED
US9660376May 18, 2015May 23, 2017Apple Inc.Connector insert having a cable crimp portion with protrusions and a receptacle having a label in the front
US9689527Mar 13, 2014Jun 27, 2017Lee Christopher FranklinMounting apparatus
US9711893Aug 17, 2015Jul 18, 2017Apple Inc.Magnetic connector for electronic device
US20090117783 *Nov 2, 2007May 7, 2009Hon Hai Precision Ind.Co., Ltd.Electrical connector assembly with magnetic retention device
US20090239392 *Oct 13, 2008Sep 24, 2009Kabushiki Kaisha ToshibaElectronic Apparatus
US20100035441 *Oct 16, 2009Feb 11, 2010Apple Inc.Magnetic connector for electronic device
US20100087071 *Dec 8, 2009Apr 8, 2010Apple Inc.Electromagnetic connector for electronic device
US20110084474 *Jun 24, 2009Apr 14, 2011Paden David BHigh retention magnetic coupling device for conduit attachment
US20110092081 *Oct 20, 2009Apr 21, 2011Apple Inc.Magnetic connector having a unitary housing
US20110136351 *Feb 15, 2011Jun 9, 2011Apple Inc.Magnetic connector for electronic device
US20110143556 *Dec 8, 2010Jun 16, 2011Delta Eletronics, Inc.Connecting mechanism for connecting power adapter and electronic device
US20110171837 *Jan 11, 2010Jul 14, 2011AUTOMOTIVE INDUSTRIAL MARKETING CORP., dba AIMCOMagnetic cable connector systems
US20110189863 *Jan 11, 2011Aug 4, 2011Thales Avionics, Inc.Break-away connection for in-flight entertainment system
US20120164849 *Dec 22, 2010Jun 28, 2012Research In Motion LimitedSelf-orienting electrical connector
US20120309210 *Nov 11, 2011Dec 6, 2012Hon Hai Precision Industry Co., Ltd.Electrical connector with power plug and power socket
US20140049971 *Oct 25, 2013Feb 20, 2014The Procter & Gamble CompanyMethods and apparatus for providing modular functionality in a lighting assembly
US20140049972 *Oct 25, 2013Feb 20, 2014The Procter & Gamble CompanyStemmed lighting assembly with disk-shaped illumination element
US20140302691 *Apr 9, 2013Oct 9, 2014Arash JanfadaMagnetically actuated ac power connector
US20160003270 *Jul 8, 2015Jan 7, 2016L. Christopher FranklinMounting apparatus
US20160336695 *Dec 27, 2015Nov 17, 2016Arash JanfadaMagnetically actuated ac power connector
CN102664321B *Aug 11, 2006Jun 10, 2015苹果公司Connector plug, connector receptacle and method for forming multiple electric paths
CN102810777A *Jun 1, 2011Dec 5, 2012富泰华工业(深圳)有限公司Power supply plug and power supply socket matched with power supply plug
CN102810777B *Jun 1, 2011Feb 4, 2015富泰华工业(深圳)有限公司Power supply plug and power supply socket matched with power supply plug
EP0177464A2 *Oct 3, 1985Apr 9, 1986Fabio AngeliImprovement in safety electric and magnetic caps for electric bulbs
EP0177464A3 *Oct 3, 1985Jan 20, 1988Fabio AngeliImprovement in safety electric and magnetic caps for electric bulbs
EP2290756A3 *Aug 11, 2006Apr 27, 2011Apple Inc.Electromagnetic connector for electronic device
EP2648289A1 *Apr 2, 2012Oct 9, 2013Tyco Electronics Nederland B.V.Contact element, clamping element, base and arrangement for holding and contacting an LED
WO1997014198A1 *Sep 28, 1996Apr 17, 1997Achim BullingerHolder for an electric light source
WO2005104304A1 *Apr 25, 2005Nov 3, 2005Mark WellsteadLight bulb fitting
Classifications
U.S. Classification200/51.9, 439/38, 335/136, 335/202
International ClassificationH01R13/62, H01R33/05, H01R33/18, H01J5/54, H01J5/00
Cooperative ClassificationH01R13/6205, H01J5/54, H01R33/18
European ClassificationH01J5/54, H01R33/18, H01R13/62A