EP2533374A1 - Verbinderanordnung mit magnetischer Befestigung - Google Patents

Verbinderanordnung mit magnetischer Befestigung Download PDF

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Publication number
EP2533374A1
EP2533374A1 EP11004567A EP11004567A EP2533374A1 EP 2533374 A1 EP2533374 A1 EP 2533374A1 EP 11004567 A EP11004567 A EP 11004567A EP 11004567 A EP11004567 A EP 11004567A EP 2533374 A1 EP2533374 A1 EP 2533374A1
Authority
EP
European Patent Office
Prior art keywords
connector
contacts
connectors
connector assembly
magnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11004567A
Other languages
English (en)
French (fr)
Inventor
Ulrich Mense
Hasan Karaca
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novero GmbH
Original Assignee
Novero GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Novero GmbH filed Critical Novero GmbH
Priority to EP11004567A priority Critical patent/EP2533374A1/de
Publication of EP2533374A1 publication Critical patent/EP2533374A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/6205—Two-part coupling devices held in engagement by a magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs

Definitions

  • the present invention relates to a connector assembly with the features according to the preamble of claim 1.
  • Connector assemblies of the kind in question serve to electrically connect a first electrical or electronic item, such as an electrical or electronic circuit, e.g. an electricity consumer like a laptop, to a second electrical or electronic item, such as a power supply or an associated cord or cable.
  • a first electrical or electronic item such as an electrical or electronic circuit, e.g. an electricity consumer like a laptop
  • second electrical or electronic item such as a power supply or an associated cord or cable.
  • the connection between the two items may be temporary or permanent.
  • a connector assembly is disclosed in US 7,311,526 B2 which forms the starting point of the present invention.
  • the known connector assembly includes two connectors, preferably a plug and a receptacle.
  • the plug and the receptacle each have a plurality of contacts of an electrically conductive material.
  • the contacts of each of the connectors are electrically connected to an electrical or electronic item and electrically insulated from each other.
  • the contacts of the plug mate the contacts of the receptacle.
  • the plug and the receptacle each have a magnetic element. The contacts of the plug are maintained in an electrically conductive relationship with the contacts of the receptacle by magnetic attraction between both magnetic elements.
  • Magnetically coupling the plug and the receptacle enables a comfortable handling and avoids damage of the connector assembly and in particular the associated electric items, because the connectors are not required to have an interference fit with each other to maintain both electrical and mechanical connection. Instead, establishing and releasing an electrical and magnetic connection between the plug and the receptacle basically requires positioning the connectors on a face side against or away from each other. The magnetic connection allows the coupled connectors to break away from each other without damage when inadvertently torn apart from each other by a non-axial force.
  • the connectors of the known connector assembly each comprise two axes of symmetry such that the connectors couple together in only two orientations relative to each other. Furthermore, when coupling the plug and the receptacle, the contacts of the plug have to be aligned with the contacts of the receptacle. Such an alignment may require several iterations of repositioning of the connectors.
  • the object of the present invention is to improve the known connector assembly with regard to the handling.
  • a connector assembly comprising the features of the preamble of claim 1 together with the features of the characterizing part of claim 1.
  • the contacts of one of the two connectors of the connector assembly according to the present invention are concentric tracks. These concentric tracks offer a large contact surface, while the concentric tracks can have a very small axial extension. This feature is especially advantageous for electronic devices for which the axial connector extension is subject to more severe restrictions than lateral extension of the connector.
  • the contacts of the other of the connectors are prevented from being damaged by being jammed in, for example, a recess or slot, at a wrong angle or by being fitted into imperfectly fitting cavities.
  • a substantially flat design of the contacts of one of the connectors provides advantages in terms of electrical characteristics, such as issues related to Hertzian stresses around a contact point and issues related to contact asperities.
  • the concentric tracks combined with the coupling of the connectors by magnetic force enable a high durability of the connector assembly in terms of many coupling/decoupling cycles.
  • the contacts of the other of the connectors are positioned such that in a coupled state of the connector assembly each single contact of the other connector abuts on a different contact of the one connector.
  • each contact pair establishes a separate electrical path in a coupled state of the connector assembly. This arrangement is essential to avoid short-circuiting.
  • the two connectors can, in principle, be coupled in more than two angular positions (orientations) relative to each other and to a central axis common to the concentric tracks. This feature simplifies the handling of the inventive connector assembly, especially the coupling process. Potentially, the connectors can be coupled in many different orientations. This feature allows an easy and rapid coupling of the connectors.
  • the first and/or the second connector has or have at least one guide.
  • the guide according to the present invention fulfils a different task in a different state of the connector assembly, namely in a coupled state of the connector assembly.
  • the guide according to the present invention is arranged such that in a coupled state of the connector assembly it prevents a displacement of the connectors relative to each other which would result in a loss of the electrically conductive relationship of the contacts of the first connector with the corresponding contacts of the second connector.
  • Fig. 1 illustrates a first embodiment of the present invention in an uncoupled state in a perspective view.
  • the present invention provides a connector assembly 1 for electrically connecting a first electrical or electronic item (not shown) to a second electrical or electronic item (not shown).
  • the proposed connector assembly 1 connects a portable device like a laptop, a tablet PC or a portable display to a power supply, so that a rechargeable battery of the mobile device can be recharged.
  • the proposed connector assembly 1 connects household appliances like an electric iron, a kettle or a toaster to a power supply.
  • the proposed connector assembly 1 electrically connects a loudspeaker of a loudspeaker set of a home entertainment system to another loudspeaker of the loudspeaker set.
  • many other examples are within the scope of the present invention.
  • the connector assembly 1 comprises a first connector 2, positioned on the left in Fig. 1 , having a first magnetic assembly 3 with at least one magnetic element.
  • the first connector 2 has at least two contacts 4, namely in fact the contacts 4',4", of an electrically conductive material.
  • the contacts 4 are electrically connected to the first electrical or electronic item (not shown) and electrically insulated from each other by an insulating material, which is, for example, made of plastics.
  • the connector assembly I further comprises a second connector 5, positioned on the right in Fig. 1 , having a second magnetic assembly 6 with at least one magnetic element.
  • the second connector 5 has at least two contacts 7, namely in fact also three contacts 7, of an electrically conductive material.
  • the contacts 7 are electrically connected to the second electrical or electronic item (not shown) and electrically insulated from each other by an insulating material, which is, for example, made of plastics.
  • the contacts 4 of the first connector 2 are maintained in electrically conductive relationship with the contacts 7 of the second connector 5 by magnetic attraction between the first and second magnetic assembly 3,6.
  • the magnetic attraction is configured to be sufficiently strong to reliably complete an electrical or electronic circuit by the contacts 4 and the contacts 7 and to ensure a rugged connection of the two connectors 2,5.
  • the magnetic attraction is configured to be small enough so that the resulting magnetic field does not interfere with the connected electrical or electronic items, e.g. a power supply, or electromagnetic elements thereof.
  • the magnetic attraction force between the connectors 2,5 can be configured as desired for a specific implementation.
  • the connector assembly 1 is designed such that in a coupled state it is resistant to vibration, water or other contaminants, and pressure to a certain extent. Furthermore, the connector assembly 1 assures protection against electric shock.
  • the connector assembly 1 has a low contact resistance between the contacts 4,7 and high insulation value outside the area of the contacts 4,7.
  • Fig. 1 shows a first characterizing feature of the present invention, namely that the contacts 4 of the one connector 2 are designed as concentric tracks 4.
  • the concentric tracks 4 are at least substantially flat with an axial extension below 10 mm, especially preferred below 5 mm.
  • the maximum distance between the perimeter of the outermost concentric track 4 and a common centre of the concentric tracks 4 is preferably below 20 mm, particularly preferred below 10 mm.
  • the concentric tracks 4 are preferably made of electrically conductive materials like brass, copper, silver, palladium or gold. Especially preferred are concentric tracks 4 with gold plating.
  • the contacts 7 of the other connector 5 are positioned such that in a coupled state of the connector assembly 1 each single contact 7 of the other connector 5 abuts on a different contact 4 of the one connector 2. Thus, each contact pair establishes a separate electrical path in a coupled state of the connector assembly 1.
  • the two connectors 2,5 can, in principle, be coupled in more than two angular positions relative to each other and to a central axis 8 common to the concentric tracks 4.
  • the connector assembly 1 is designed such that coupling the connectors 2,5 in a different angular position results in the same pairs of contacts being in electrically conductive relationship.
  • the pairs of contacts do not require cumbersome alignment during the coupling process.
  • the geometric shape of a concentric track 4 is not necessarily circular or round. In fact, it is essential that it fulfils two criteria.
  • the geometric shapes of the concentric tracks 4 have to share the same centre of gravity (condition for concentricity).
  • the common centre of gravity is the penetration point of the central axis 8 and the concentric tracks 4.
  • the geometric shapes of the concentric tracks 4 have to allow the two connectors 2,5 to be coupled in more than two angular positions relative to each other and to the central axis 8.
  • Possible shapes fulfilling this criterion are, for example, regular polygons with more than two edges, such as a regular hexagon.
  • a regular polygon with n edges has rotational symmetry of order n and therefore n possible angular positions for coupling the connectors 2,5, wherein the central axis 8 is the axis of rotational symmetry.
  • Suitable regular polygon shapes can be convex or star-shaped.
  • the first connector 2 has at least one guide 9 and/or the second connector 5 has at least one guide 10 which are arranged such that in a coupled state of the connector assembly 1 they prevent a displacement of the connectors 2,5 relative to each other which would result in a loss of the electrically conductive relationship of a contact 4 of the first connector 2 with the corresponding contact 7 of the second connector 5.
  • This feature is essential to ensure that a certain contact pair is not electrically separated in a coupled state of the connector assembly 1.
  • the guide 9 is shown to protrude from the first connector 2 like a lip, whereas the second connector 5 does not have a separate guide, because its outer surface defines the corresponding guide 10.
  • the guide 9 of the first connector 2 can also be designed as a recess which is engaged with the guide 10 of the second connector 5. It will be appreciated by a person skilled in the art that a number of guiding techniques can be used to prevent unwanted displacement.
  • the concentric tracks 4 are designed as circular rings 4' and a central circle 4".
  • the concentric tracks 4 comprise one central circle 4" at most.
  • the contacts 4 of the one of the connectors 2,5 comprises at least one circular ring 4', if any.
  • a circular ring 4' is here defined as the area between the circumferential lines of two concentric circles.
  • the connector assembly 1 is preferably designed such that in a coupled state of the connector assembly 1 the two connectors 2,5 are rotatable about the central axis 8 in opposite directions relative to each other.
  • the connector assembly 1 is designed such that in a coupled state of the connector assembly 1 the two connectors 2,5 are rotatable about the central axis 8 in opposite directions relative to each other through an angle of 360° (in fact without limitation).
  • any force in a slanting direction e.g. when the connector assembly 1 is inadvertently exposed to a non-axial force, is transformed into a rotational force leading to a rotation of the connectors 2,5 relative to each other and to the central axis 8.
  • Fig. 3 schematically illustrates a second embodiment of the present invention in a front view of the connector 2 of the proposed connector assembly 1.
  • at least one of the circular rings 4' is laterally divided into at least two circular sectors 4"', which are electrically connected to the one of the electrical or electronic items 11 and electrically insulated from each other.
  • dividing the circular rings 4' into circular sectors 4'" decreases the contact area of the corresponding contact pairs and the angle through which the connectors 4' can potentially be rotated in opposite directions relative to each other in a coupled state of the connector assembly 1.
  • one of the electrical or electronic items 11 can be a printed circuit board.
  • the two connectors 2,5 can be connected to other electrical or electronic items.
  • Fig. 3 it can be seen that the outermost circular ring 4' is divided into three sectors 4"' which are separated by insulators 12.
  • the connector assembly 1 can be designed such that in a coupled state of the connector assembly 1 the two connectors 2,5 are rotatable about the central axis 8 in opposite directions relative to each other through an angle of approximately 85°.
  • other embodiments e.g. with a circular ring 4' divided into two semi-circular sectors 4"', are possible and within the scope of the present invention.
  • the contacts 7 of the other of the connectors 5 are positioned such that the sum of the distances between each pair of contacts 7 reaches its maximum, wherein in a coupled state of the connector assembly 1 the contacts 7 of the other of the connectors 5 centrally abut on the concentric tracks 4 of the one connector 2.
  • the distance between a pair of contacts 7 is defined here as the length of the shortest straight line connecting the perimeters of two respective contacts 7.
  • FIG. 1, 2 and 4 Preferred embodiments according to this feature are shown in Fig. 1, 2 and 4 .
  • Fig. 2 three contacts 7 are illustrated.
  • the outermost of the contacts 7 is not positioned on the left side of the other of the connectors 5, but on the right side, so as to be as far as possible away from the leftmost of the contacts 7 in Fig. 2 .
  • Fig. 4 shows a preferred positioning of the contacts 7 according to the lastly defined feature in case of five contacts 7.
  • the lastly defined feature is fulfilled if the contacts 7 of the connector 5 are positioned in a straight line.
  • the contacts 7 can be differently positioned than in a straight line.
  • the contacts 7 of the other connector 5 are designed as pins, which preferably are spring-loaded, particularly loaded by springs 13.
  • the springs 13 arc engaged with a bottom side of the pins.
  • the tops of the pins are preferably pointed.
  • the springs 13 can be made of an electrically conductive material. In this case, the springs 13 can be connected by wires 14 to the associated electrical or electronic item (not shown in Fig. 4 ).
  • the pins are preferably located in passages or slots in an insulator 15. Typically, this apparatus will be manufactured by injection-molding around the pins.
  • the pins of the connector 5, but also the contacts 7 in general, and the corresponding magnetic assembly 6 can be protected by a non-conductive shell 16.
  • the pins protrude all other components of the other of the connectors 5, e.g. the insulator 15, the magnetic assembly 6 or the shell 16, in an uncoupled state of the connector assembly 1.
  • the pins When coupling the two connectors 2,5, the pins are pushed into the passages or slots by the concentric tracks 4, as the springs 13 are compressed.
  • the springs 13 When releasing the two connectors 2,5, the springs 13 expand and the pins are pushed back again.
  • the pins Neither in a coupled state nor in an uncoupled state of the connector assembly 1, the pins have to abut on a common plane, so, for example, they can have different heights.
  • the concentric tracks 4 preferably are recessed relative to each other and the central axis 8. According to the design of the concentric tracks 4, the tops of the pins of the other connector 5 are designed to fit in a corresponding recess formed by the concentric tracks 4. Thus, protection against electric shock and insulation of the contacts 7 against each other are improved.
  • the concentric track 4 connected to a live wire can be designed as central circle 4", which has the greatest axial recess
  • the concentric track 4 connected to a neutral wire can be designed as circular ring 4', which has an axial recess smaller than the recess of the central circle 4"
  • the third concentric track 4, preferably the outermost concentric track 4 can be designed as circular ring 4', which is not recessed and which provides electrical earthing of the connector assembly 1.
  • the magnetic assemblies 3,6 are positioned such that they abut on each other in a coupled state of the connector assembly 1, This arrangement enables a simple construction of the connector assembly 1 and a rugged connection of the two connectors 2,5.
  • the magnetic assembly 3 of the one connector 2 comprises one magnetic element which is designed as circular ring surrounding the contacts 4 of the one connector 2 and/or the magnetic assembly 6 of the other connector 5 comprises one magnetic element which is designed as hollow cylinder surrounding the contacts 7 of the other connector 5.
  • This arrangement is one example allowing the two connectors 2,5 being rotatable about the central axis 8 in opposite directions relative to each other through an angle of 360° or practically without limitation.
  • the magnetic elements of both magnetic assemblies 3,6 are preferably designed as magnets, particularly as permanent magnets, arranged such that the magnetic assemblies 3,6 magnetically attract each other.
  • one of the magnetic assemblies 3,6 is composed of at least one magnet, preferably a permanent magnet, and the other of the magnetic assemblies 6,3 is composed of a magnetic material, preferably a ferromagnetic material, particularly custom grade steel.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP11004567A 2011-06-06 2011-06-06 Verbinderanordnung mit magnetischer Befestigung Withdrawn EP2533374A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11004567A EP2533374A1 (de) 2011-06-06 2011-06-06 Verbinderanordnung mit magnetischer Befestigung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11004567A EP2533374A1 (de) 2011-06-06 2011-06-06 Verbinderanordnung mit magnetischer Befestigung

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EP2533374A1 true EP2533374A1 (de) 2012-12-12

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CN103441394A (zh) * 2013-08-29 2013-12-11 苏州萤火虫贸易有限公司 用于电热水壶的底座
CN103441396A (zh) * 2013-08-29 2013-12-11 苏州萤火虫贸易有限公司 安全型电热水壶
CN103441397A (zh) * 2013-08-29 2013-12-11 苏州萤火虫贸易有限公司 电热水壶
CN103457129A (zh) * 2013-09-03 2013-12-18 乐清市华尊电气有限公司 防水帽和电水壶底座
KR101391112B1 (ko) 2013-12-19 2014-04-30 백예은 플러그용 회전 접속형 콘센트
US9179793B2 (en) 2012-05-08 2015-11-10 Willis Electric Co., Ltd. Modular tree with rotation-lock electrical connectors
WO2015181230A1 (de) * 2014-05-27 2015-12-03 Rheinmetall Defence Electronics Gmbh Vorrichtung zur elektrischen kontaktierung
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CN105514681A (zh) * 2016-01-18 2016-04-20 普联技术有限公司 磁吸式连接器及其移动电子设备
WO2016119001A1 (de) * 2015-01-30 2016-08-04 Flechl Christian Steckverbindung und verfahren zum verbinden von insbesondere elektrischen leitungen
US9441823B1 (en) 2011-12-09 2016-09-13 Willis Electric Co., Ltd. Modular lighted artificial tree
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US9671074B2 (en) 2013-03-13 2017-06-06 Willis Electric Co., Ltd. Modular tree with trunk connectors
US9677749B2 (en) 2011-11-14 2017-06-13 Willis Electric Co., Ltd. Conformal power adapter for lighted artificial tree
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US9839315B2 (en) 2015-03-27 2017-12-12 Polygroup Macau Limited (Bvi) Multi-wire quick assemble tree
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US9883566B1 (en) 2014-05-01 2018-01-30 Willis Electric Co., Ltd. Control of modular lighted artificial trees
US9883706B2 (en) 2011-05-20 2018-02-06 Willis Electric Co., Ltd. Multi-positional, locking artificial tree trunk
US9894949B1 (en) 2013-11-27 2018-02-20 Willis Electric Co., Ltd. Lighted artificial tree with improved electrical connections
US10206530B2 (en) 2012-05-08 2019-02-19 Willis Electric Co., Ltd. Modular tree with locking trunk
CN109547890A (zh) * 2019-01-05 2019-03-29 深圳市韶音科技有限公司 磁吸接头、磁吸接头组件及骨传导扬声装置
US10566734B1 (en) 2018-08-02 2020-02-18 Roboteq, Inc System for facilitating electrical connection of a first electrical unit comprised in a first object with a second electrical unit comprised in a second object
US10683974B1 (en) 2017-12-11 2020-06-16 Willis Electric Co., Ltd. Decorative lighting control
US10765245B2 (en) 2009-07-14 2020-09-08 Belgravia Wood Limited Power pole for artificial tree apparatus with axial electrical connectors
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US10973355B2 (en) 2009-07-14 2021-04-13 Belgravia Wood Limited Power pole for artificial tree apparatus with axial electrical connectors
US11083319B2 (en) 2009-07-14 2021-08-10 Belgravia Wood Limited Power pole for artificial tree apparatus with axial electrical connectors
WO2021204813A1 (de) * 2020-04-07 2021-10-14 Arfaoui Faisel Verbindungssystem zur herstellung einer lösbaren elektrisch leitenden verbindung, und steckverbinder
US11374351B2 (en) 2018-04-06 2022-06-28 Fischer Connectors Holding S.A. Multipolar connector
US11491884B2 (en) 2017-01-19 2022-11-08 Curtis Instruments Inc. Magnetic charger connector for wheelchair
WO2022262138A1 (zh) * 2021-06-30 2022-12-22 贺书琴 可收纳平行连接磁吸式电子连接器
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WO2024108247A1 (de) 2022-11-25 2024-05-30 Facc Ag Kabinenausstattungseinheit und verfahren zum zusammensetzen der kabinenausstattungseinheit
RU2827555C1 (ru) * 2023-09-24 2024-09-30 Михаил Дмитриевич Любарский Электрический разъем для транспортных средств

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US10973355B2 (en) 2009-07-14 2021-04-13 Belgravia Wood Limited Power pole for artificial tree apparatus with axial electrical connectors
US11712126B2 (en) 2009-07-14 2023-08-01 Belgravia Wood Limited Power pole for artificial tree apparatus with axial electrical connectors
US11096511B2 (en) 2009-07-14 2021-08-24 Belgravia Wood Limited Power pole for artificial tree apparatus with axial electrical connectors
US11096512B2 (en) 2009-07-14 2021-08-24 Belgravia Wood Limited Power pole for artificial tree apparatus with axial electrical connectors
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