WO2018076538A1 - Connecteur de prise électrique - Google Patents

Connecteur de prise électrique Download PDF

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Publication number
WO2018076538A1
WO2018076538A1 PCT/CN2016/113545 CN2016113545W WO2018076538A1 WO 2018076538 A1 WO2018076538 A1 WO 2018076538A1 CN 2016113545 W CN2016113545 W CN 2016113545W WO 2018076538 A1 WO2018076538 A1 WO 2018076538A1
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WO
WIPO (PCT)
Prior art keywords
contact
terminal
arms
spring
frame
Prior art date
Application number
PCT/CN2016/113545
Other languages
English (en)
Chinese (zh)
Inventor
于增亮
江伟国
Original Assignee
德尔福中央电气（上海）有限公司
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 德尔福中央电气（上海）有限公司 filed Critical 德尔福中央电气（上海）有限公司
Publication of WO2018076538A1 publication Critical patent/WO2018076538A1/fr

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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket

Definitions

  • the present invention generally relates to an electrical receptacle connector, and more particularly to a receptacle connector having a contact spring disposed within a cylindrical electrical receptacle terminal, the cylindrical electrical receptacle terminal receiving a cylindrical electrical plug terminal and Configured to improve electrical contact therebetween.
  • Contact springs have been used in high current electrical connectors, such as connectors in electric vehicles or hybrid electric vehicles, in order to increase the contact force between the terminals in the connector. While these contact springs beneficially increase the contact force, they also increase the terminal insertion force, which can cause ergonomic problems during mating connector assembly when the mating connector exceeds the specified criteria. Tools or coordination features may be required to address these insertion force issues. Therefore, it is still desirable to provide a contact spring that has an increased contact force without exceeding the insertion force limit.
  • an electrical receptacle connector in accordance with an embodiment of the present invention, includes a cylindrical receptacle terminal configured to receive a cylindrical plug terminal and a contact spring disposed within the receptacle terminal.
  • the contact spring includes a cylindrical frame that contacts the inner sidewall of the receptacle terminal, a plurality of first contact arms that form a cantilever beam longitudinally disposed within the frame, and a plurality of second contact arms that form a fixed beam longitudinally disposed within the frame. Only one end of each of the first contact arms is attached to the cylindrical frame. Two ends of each of the second contact arms Attached to the cylindrical frame.
  • the contact springs can be configured such that each first contact arm is adjacent to the two second contact arms.
  • the frame may define a plurality of first contact bumps adjacent the attachment ends of each of the first contact arms. The first contact bump protrudes from the frame toward the socket terminal.
  • the frame may also define a plurality of second contact bumps adjacent the ends of each of the second contact arms. The second contact bump also protrudes from the frame toward the socket terminal.
  • each of the first contact arms can define a contact pad that is configured to forcibly contact the inner sidewall of the receptacle terminal when the cylindrical plug terminal is disposed within the contact spring.
  • Each first contact arm can be characterized as having an arcuate shape with a first apex. The first apex of the first contact arm projects toward the inner side wall of the receptacle terminal.
  • Each of the first vertices of the first contact arm can define an embossed ridge that projects away from the inner sidewall of the receptacle terminal. When the cylindrical plug terminal is disposed within the contact spring, the embossed ridge is in compressive contact with the inner sidewall of the receptacle terminal.
  • Each second contact arm is characterized as having a three-arc shape with a first vertex, a second vertex, and a third vertex.
  • a first apex of the second contact arm projects toward the inner sidewall of the receptacle terminal, wherein the second apex and the third apex of the second contact arm protrude away from the inner sidewall of the receptacle terminal.
  • the first vertex of the second contact arm is intermediate the second vertex and the third vertex of the second contact arm.
  • the first apex of the second contact arm is in compressive contact with the inner sidewall of the receptacle terminal when the cylindrical plug terminal is disposed within the contact spring.
  • FIG. 1 is an exploded perspective view of an electrical connector assembly including a plug connector and a receptacle connector in accordance with an embodiment of the present invention
  • FIG. 2 is a cross-sectional side view of the receptacle connector of FIG. 1 in accordance with an embodiment of the present invention
  • FIG. 3 is an enlarged cross-sectional side view of a contact spring in the receptacle connector of FIG. 2, in accordance with an embodiment of the present invention
  • FIG. 4 is a perspective view of the contact spring of FIG. 3 in accordance with an embodiment of the present invention.
  • FIG. 5 is an isolated perspective view of the first spring arm and the second spring arm of the contact spring of FIG. 4, in accordance with an embodiment of the present invention.
  • an electrical receptacle connector having a cylindrical receptacle that is configured to receive a corresponding cylindrical plug connector.
  • the receptacle connector is configured to provide a high current electrical connection, i.e., greater than 50 amps, such as may be used in an electric vehicle or a hybrid electric vehicle.
  • the receptacle connector includes a cylindrical contact spring that is configured to increase the contact force between the plug and the receptacle to provide a more reliable electrical connection.
  • FIG. 1 shows a non-limiting example of an electrical receptacle connector 100 that includes a cylindrical receptacle terminal 102 configured to receive a cylindrical plug terminal 200 and an attachment configured to attach to a cable Part 104.
  • the receptacle connector 100 includes a cylindrical terminal contact spring, hereinafter referred to as a terminal contact spring 106, disposed within a circumferential recess 108 in the cylindrical bore 110 of the receptacle terminal 102, as best shown in FIG.
  • the terminal contact spring 106 is formed from a sheet of electrically conductive material, such as stainless steel, phosphor bronze or beryllium copper, which is stamped and formed using conventional sheet metal processing techniques. As shown in FIG. 2, the terminal contact spring 106 includes a cylindrical frame that is in contact with the inner sidewall 114 of the receptacle terminal 102, hereinafter referred to as a frame 112.
  • the frame 112 has a first strap 116 and a second strap 118 that is generally parallel to the first strap 116.
  • the frame 112 defines a longitudinal gap 120 that allows the terminal contact spring 106 to be compressed such that when the terminal contact spring 106 is inserted into the bore 110 of the receptacle terminal 102, the diameter of the terminal contact spring 106 can be reduced.
  • the terminal contact spring 106 is configured to return to its original diameter once in the circumferential groove 108.
  • a plurality of first contact arms 122 extend longitudinally from the first belt 116 to form a cantilever beam longitudinally disposed within the frame 112.
  • a plurality of second contact arms 124 extend longitudinally from the first belt 116 to the second belt 118 to form a fixed beam longitudinally disposed within the frame 112.
  • each first contact arm 122 has a fixed end 126 that is joined to the first strap 116 and a free end 128 that is not coupled to the second strap 118. Only one end of the first contact arm 122 has a fixed end 126 that is joined to the first strap 116 of the frame 112.
  • Each first contact arm 122 can be characterized as having an arcuate shape with a first apex 130. The first apex 130 of the first contact arm 122 protrudes away from the inner sidewall 114 of the receptacle terminal 102. Each first apex 130 of the first contact arm 122 defines an embossed ridge 132 that projects toward the inner sidewall 114 of the receptacle terminal 102.
  • each of the first contact arms 122 further defines a contact pad 134 that is configured to forceally contact the inner sidewall 114 when the cylindrical plug terminal 200 is disposed within the terminal contact spring 106 .
  • each of the second contact arms 124 can be characterized as having a three arcuate shape or a serpentine shape with a first apex 136, a second apex 138, and a third apex 140.
  • the first apex 136 and the third apex 140 of the second contact arm 124 protrude toward the center of the inner sidewall 114 of the receptacle terminal 102.
  • the second apex 138 of the second contact arm 124 projects away from the inner sidewall 114 of the receptacle terminal 102.
  • the second apex 138 of the second contact arm 124 is intermediate the first apex 136 and the third apex 140 of the second contact arm 124.
  • the second apex 138 of the second contact arm 124 is in compressive contact with the inner sidewall 114 of the receptacle terminal 102.
  • the gap 120 is defined between two adjacent second contact arms 124.
  • the terminal contact springs 106 are configured such that each first contact arm 122 is adjacent to the two second contact arms 124.
  • the first strip 116 of the frame 112 defines a plurality of first contact bumps 142 adjacent the fixed ends 126 of each of the first contact arms 122, the first contact bumps at the fixed ends 126 142 is attached to the first belt 116.
  • the first contact bump 142 is away from the first strip 116 of the frame 112 and protrudes toward the inner sidewall 114 of the receptacle terminal 102.
  • the first strap 116 and the second strap 118 of the frame 112 further define a plurality of second contact lugs 144 located on the first strap 116 and the second strap 118 adjacent to such a position, i.e., the second contact at the location
  • the ends of each of the arms 124 are joined to the first strap 116 and the second strap 118.
  • the second contact bump 144 also protrudes from the first strap 116 and the second strap 118 of the frame 112 and toward the inner sidewall 114 of the receptacle terminal 102.
  • first contact arm and the second contact arm can be arranged differently.
  • first contact arm and the second contact arm may be arranged such that there are two second contact arms between each two first contact arms or two first contact arms between each two second contact arms .
  • These variations in the arrangement of the first contact arm and the second contact arm may increase the contact force of the contact spring or reduce the insertion force of the contact spring.
  • an electrical receptacle connector 100 having a cylindrical receptacle terminal 102 configured to receive a cylindrical plug terminal 200 and a terminal disposed within the receptacle terminal 102 Contact spring 106.
  • the electrical receptacle connector 100 has at least the following advantages over the prior art:
  • the combination of the two contact arm designs can provide a lower insertion force while providing a higher contact force between the terminal contact spring 106 and the receptacle terminal and the plug terminal. It has been found that a particular embodiment has an insertion force of 66 Newtons (N) while having a contact force of 83 N;
  • first strap 116 and the second strap 118 and the first spring arm and the second spring arm provide features for forming additional contact points between the plug terminal and the receptacle terminal;
  • the contact points of the first spring arm and the second spring arm are at different insertion depths of the insertion contacts, thereby reducing the insertion force of the insertion contacts and ensuring better contact between the plug terminals and the socket terminals.
  • first, second, etc. does not denote any order of importance, but the terms first, second, etc. are used to distinguish one element from another.
  • first-order does not denote a limitation of quantity, but rather means that there is at least one item mentioned.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

La présente invention concerne un connecteur de prise électrique (100), comprenant une borne de prise cylindrique (102) conçue pour recevoir une borne de fiche cylindrique (200), et un ressort de contact de borne cylindrique (106) disposé à l'intérieur de la borne de prise cylindrique (102). Le ressort de contact de borne (106) comprend un cadre cylindrique (112) ayant une première bande et une seconde bande en contact avec la borne de prise (102) ; une pluralité de premiers bras de contact (122) agencés longitudinalement à l'intérieur du cadre (112), chacun des premiers bras de contact (122) ayant une extrémité fixe (126) en contact avec la première bande (116) et une extrémité libre (128) qui n'est pas en contact avec la seconde bande (118) ; et une pluralité de seconds bras de contact (124) agencés longitudinalement à l'intérieur du cadre (112), chacun des seconds bras de contact (124) ayant une extrémité fixe en contact avec la première bande (116) et une seconde extrémité fixe en contact avec la seconde bande (118). Une extrémité de chaque premier bras de contact (122) est fixée au cadre cylindrique (112), et les deux extrémités de chaque second bras de contact (124) sont fixées au cadre cylindrique (112).
PCT/CN2016/113545 2016-10-26 2016-12-30 Connecteur de prise électrique WO2018076538A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610947032.1A CN107994375A (zh) 2016-10-26 2016-10-26 一种高载流能力端子弹簧
CN201610947032.1 2016-10-26

Publications (1)

Publication Number Publication Date
WO2018076538A1 true WO2018076538A1 (fr) 2018-05-03

Family

ID=62023024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/113545 WO2018076538A1 (fr) 2016-10-26 2016-12-30 Connecteur de prise électrique

Country Status (2)

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CN (1) CN107994375A (fr)
WO (1) WO2018076538A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03291874A (ja) * 1990-04-10 1991-12-24 Amp Japan Ltd リセプタクル型コンタクト
JPH09259963A (ja) * 1996-03-21 1997-10-03 Yazaki Corp 雌端子
CN202633582U (zh) * 2012-06-12 2012-12-26 常州市莱肯电连接技术有限公司 大电流双冠带插孔
JP2013187169A (ja) * 2012-03-12 2013-09-19 Furukawa Electric Co Ltd:The コネクタ端子用接触ばね、並びに、雌端子、雄端子、雌コネクタ、及び、雄コネクタ
CN105720405A (zh) * 2014-12-17 2016-06-29 丰田自动车株式会社 连接器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52690U (fr) * 1975-06-23 1977-01-06
US4606599A (en) * 1981-12-17 1986-08-19 Texas Instruments Incorporated Low insertion force connector
CN201408866Y (zh) * 2009-02-27 2010-02-17 比亚迪股份有限公司 一种片簧插套
CN202405473U (zh) * 2012-01-13 2012-08-29 东莞中探探针有限公司 一种冠簧及冠簧连接器
DE202012008961U1 (de) * 2012-09-17 2012-10-12 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Kontaktelement
JP6278024B2 (ja) * 2014-12-17 2018-02-14 トヨタ自動車株式会社 コネクタ
CN204481189U (zh) * 2015-04-08 2015-07-15 德尔福连接器系统（南通）有限公司 一种具有高接触面积的端子弹簧弹性机构
CN206135002U (zh) * 2016-10-26 2017-04-26 德尔福中央电气（上海）有限公司 高载流能力端子弹簧

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03291874A (ja) * 1990-04-10 1991-12-24 Amp Japan Ltd リセプタクル型コンタクト
JPH09259963A (ja) * 1996-03-21 1997-10-03 Yazaki Corp 雌端子
JP2013187169A (ja) * 2012-03-12 2013-09-19 Furukawa Electric Co Ltd:The コネクタ端子用接触ばね、並びに、雌端子、雄端子、雌コネクタ、及び、雄コネクタ
CN202633582U (zh) * 2012-06-12 2012-12-26 常州市莱肯电连接技术有限公司 大电流双冠带插孔
CN105720405A (zh) * 2014-12-17 2016-06-29 丰田自动车株式会社 连接器

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