EP2690716B1 - Elément de raccordement électrique - Google Patents

Elément de raccordement électrique Download PDF

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Publication number
EP2690716B1
EP2690716B1 EP12177673.6A EP12177673A EP2690716B1 EP 2690716 B1 EP2690716 B1 EP 2690716B1 EP 12177673 A EP12177673 A EP 12177673A EP 2690716 B1 EP2690716 B1 EP 2690716B1
Authority
EP
European Patent Office
Prior art keywords
contact
spring
connection element
electrical connection
arm
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.)
Active
Application number
EP12177673.6A
Other languages
German (de)
English (en)
Other versions
EP2690716A1 (fr
Inventor
Karl Wirth
Oliver Gugutzer
Jürgen Lausch
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to EP12177673.6A priority Critical patent/EP2690716B1/fr
Priority to US13/926,463 priority patent/US9011186B2/en
Priority to KR1020130084181A priority patent/KR101989442B1/ko
Priority to CN201310310379.1A priority patent/CN103579806B/zh
Publication of EP2690716A1 publication Critical patent/EP2690716A1/fr
Application granted granted Critical
Publication of EP2690716B1 publication Critical patent/EP2690716B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • 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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • 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
    • H01R13/18—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding the socket
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles

Definitions

  • the present invention relates to an electrical connection element having a base body with at least one connection section and at least one socket section, which has at least one contact arm for contacting a plug-in contact insertable into the socket section.
  • connection elements serve to create a releasable electrical connection between the plug contact and the connection element, and are used for example in motor vehicles.
  • the connectors must be able to withstand strong vibrations as well as extreme temperatures and at the same time be able to conduct high currents.
  • a secure electrical connection between the connection element and the plug contact must be ensured over the entire service life of the connection element.
  • Electrical connection elements with over springs to increase the contact force are, for example, from EP 1 291 979 A1 , of the FR 2 844 105 and the US 2011/0076901 A1 known. Electrical connection elements according to the preamble of claim 1 are known from US Pat. No. 6,402,571 B1 and the US 5,938,485 known.
  • the invention has for its object to provide an electrical connection element which allows a permanent and secure contact of a plug-in contact and at the same time allows a smooth insertion of the plug contact.
  • the electrical connection element comprises a base body with at least one connection section and at least one socket section.
  • the connection section is intended to to connect the terminal with an electrical line, while the socket portion serves to receive a plug contact and to contact by means of a contact arm, in this way to establish an electrical connection between the plug contact and the electrical line.
  • the contact arm In a contact area provided for contacting the inserted plug contact, the contact arm is divided into at least two subcontacts. The reliability of the contact formation between plug contact and contact arm is increased in this way, since usually a single sub-contact would be sufficient for a contact, according to the invention, but to some extent a redundant contact is made.
  • the base body is surrounded by an over-spring, which has at least one over-spring arm, which cooperates with the contact arm at least in the region of the contact surface, so that the contact arm can be deflected counter to a restoring force of the over-spring arm.
  • the over-spring arm creates a spring support for the contact arm.
  • the over-spring for example, made of stainless steel, preferably made of a spring steel.
  • the over-spring arm is part of the over-spring, so that it can be produced with a minimum amount of material.
  • the over-spring arm is elastically movable over a wide range, without being plastically deformed.
  • the quality and reliability of the electrical contact between contact arm and plug contact is determined by the over-spring arm and an optionally additionally existing inherent elasticity of the contact arm greatly increased.
  • the risk of relaxation of the contact normal force, ie the contact force when inserted plug contact is greatly minimized by the over-spring.
  • the contact arm can be manufactured from a less expensive material, for example a copper wrought alloy with lower strength, whereby the connection element as a whole can be produced with lower economic outlay.
  • the or each over-spring arm is bent inward in the region of an insertion opening for the plug-in contact.
  • the over-spring arm thus contributes to a limitation of the insertion opening, which is located in the region of a front end of the bushing section and thus lies opposite the connection section situated in the rear region of the connection element.
  • the or each over-spring arm comprises at least two support tongues, which cooperate in each case with one of the partial contacts.
  • the support tongues can not touch the plug contact touch the sub-contacts or alternatively have a small distance to the sub-contacts. If the subcontacts are pressed outward during the insertion of a plug contact, the support tongues and thus the overfed arm are thereby also deflected in order to generate a restoring force, which press the part contacts to the plug contact. If the subcontacts and the support tongues are arranged at a distance from each other, a restoring force is only generated by the support tongues when the subcontacts have been moved so far outward that they touch the support tongues.
  • a separate support tongue is provided for each subcontact, the subcontacts can be moved independently of each other at least in certain areas.
  • the support by the support tongues is also independent.
  • the contact security is further increased by this redundant structure.
  • asymmetrically shaped plug contacts can be contacted with the connection element, since the sub-contacts and the support tongues supporting them can be deflected differently far and thus can adapt to the shape of an asymmetrical plug contact.
  • the support tongues extend in the direction of the insertion opening for the plug contact.
  • the support tongues extend in opposite directions to the over-spring arm, which extends forwards and thus from the insertion opening to the rear.
  • the support tongues preferably emerge from support sections of the over-spring arm.
  • the support portions may be formed over a larger area than the support tongues in order to increase the mechanical stability of the over-spring arm.
  • the support sections can be connected to one another by a web, which is advantageously tapered with respect to the support sections in order to achieve in this way a partial mechanical decoupling of the support sections.
  • the support sections can be moved against each other within certain limits.
  • the one by one Support tongues acting on a support portion forces are thus only partially transmitted to the other support portion. Consequently, the sub-contacts can be moved by the respective associated support tongues and support portions partially independently of each other, as already mentioned, to increase the reliability of the contact formation of the connection element.
  • the support portions are each connected by means of a connecting portion with an outer wall of the over-spring.
  • the connecting portions may emerge in the region of the insertion opening from an outer wall of the over-spring and be bent inwards.
  • the base body has two mutually opposite contact arms and the over-spring two opposing over-spring arms, which cooperate with one of the contact arms.
  • a plug contact can thus be inserted between mirror-inverted opposing contact arms and be contacted on both sides of the contact arms.
  • the contact arms are each supported by an over-spring arm. Due to the double, two-sided contacting with a total of four sub-contacts, on the one hand a contact area between the contact arms and the plug-in contact is doubled and, on the other hand, the contact reliability is further increased.
  • the over-spring in the region of the insertion opening for the plug contact at least one inwardly bent guide tab, which overlaps on the inside with an end portion of the contact arms.
  • the guide plate thus fulfills a threefold function: for the first it defines the insertion opening for the plug-in contact, so that, for example, improperly shaped or too large plug contacts are not in the insertion can be inserted.
  • the guide lug forms a protection against an insertion of the plug contact behind the contact arm by the inside receptacle of a contact. It can thus be prevented that the plug contact between the contact arm and an inner wall of the over-spring is inserted.
  • the plug contact is passed through the guide tab in the insertion, whereby the insertion of the plug contact is facilitated.
  • the size of a pin of the plug contact may vary, with preferred pin dimensions in the range of 0.8 mm x 4.8 mm to 0.8 mm x 6.3 mm.
  • the guide tab biases the contact arm outward.
  • the contact arm thus provides the plug-in contact with the insertion of the plug-in contact in the socket portion a reduced counterforce, thereby reducing the applied during mating plug-in contact and connection element insertion force.
  • the guide plate protrudes from an outer wall of the over-spring, from which also the over-spring arm emerges.
  • the guide tab can emerge from a central region of the outer wall of the over-spring, whereas the over-spring arm emerges from edge regions of the outer wall of the over-spring, i. the guide tab is disposed between the connecting portions of the over-spring arm.
  • the over-spring comprises at least one outwardly extending primary detent spring, which is arranged in particular in a recess of an outer wall of the over-spring.
  • the primary detent spring serves to secure or latch the connection element in a housing. Manufacturing technology is thus a fast construction of an arrangement of several connection elements by inserting and locking the connection elements in the housing possible.
  • the primary detent spring is arranged protected, whereby damage to the primary detent spring can be prevented.
  • the main body and the over-spring form separate components, wherein the over-spring is positively connected to the base body.
  • the main body and overspring can thus be produced separately.
  • the joining of the main body and overspring is simplified by the positive engagement of the components.
  • the base body of a particularly electrically conductive material and the over-spring made of a material having a particularly high mechanical elasticity can be produced.
  • the base body and / or the over-spring is formed as a stamped and bent part.
  • the electrical connection element according to the invention is thus in a simple manner and also inexpensive to produce.
  • Fig. 1 shows an electrical connection element 10 with a socket portion 12 and a connection portion 14. By crimping in the region of the connection portion 14, the connection element 10 can be connected to an (not shown) electrical line.
  • the connecting element 10 has a base body 15, which is formed in one piece from a copper wrought alloy in the form of a stamped and bent part. In the area of the bushing section 12, the base body 15 has two contact arms 28.
  • the base body 15 is further surrounded by an over-spring 16, which is formed substantially cuboid.
  • the over-spring 16 is manufactured in one piece from a spring steel by means of a stamping bending process.
  • the over-spring 16 on opposite outer walls 17 each have a primary detent spring 18, which protrudes out of a recess 22 of the outer wall 17 of the over-spring 16 to the outside.
  • the primary detent springs 18 merge in a front region of the over-spring 16 in each case into a guide lug 24 which is bent into the over-spring 16 are and define an insertion opening 26 for an inserted into the socket portion 12 plug contact.
  • the inwardly bent guide tabs 24 act as in Fig. 2 shown, inside together with end portions of the contact arms 28 and bias the contact arms 28 to the outside, ie they spread something, so that between contact surfaces 30 of the contact arms 28 results in a contact gap 31, which reduces the force required to insert the plug contact.
  • the contact arms 28 run apart to the rear until they rest on opposite inner surfaces of the over-spring 16.
  • the contact arms 28 each comprise two spacers 33 on each side, which emerge laterally from the contact arms 28 and are bent substantially at right angles, so that the spacers 33 of one contact arm 28 rest on the spacers 33 of the other contact arm 28.
  • Each pair of spacers 33 defines between them a locking opening 20.
  • Side tabs 46 of the over-spring 16 engage in the locking openings 20 and thus fix the over-spring 16 in a form-fitting manner to the base body 15th
  • the contact arms 28 are articulated in a front region in two sub-contacts 32. Specifically, the sub-contacts 32 of each contact arm 28 are separated by a gap 36 (see. Fig. 3 ), resulting in a certain independent mobility of the sub-contacts 32 against each other.
  • Each subcontact 32 has, in a region facing the insertion opening 26, a contact surface 30, with which it is in contact with the inserted plug contact. The plug contact is thus at a total of four contact surfaces 30 with the four sub-contacts 32 in conjunction.
  • each contact arm 28 cooperates with an over-spring arm 34 of the over-spring 16.
  • Each over-spring arm 34 has two connecting portions 38, which emerge in the region of the insertion opening 26 from edge regions of the outer wall 17 of the over-spring 16 and are bent inward.
  • the connecting portions 38 taper inwardly and go into support portions 40 which are plate-shaped.
  • the support portions 40 are connected by a waisted web 42 together, resulting in a certain mobility of the support portions 40 against each other.
  • each sub-contacts 32 is associated with a support tongue 44 which cooperates in the region of the contact surface 30 with the respective sub-contact 32, more precisely pushes them in the direction of the contact gap 31.
  • a plug-in contact If a plug-in contact is inserted into the insertion opening 26, it presses the partial contacts 32 outwards.
  • the subcontacts 32 thereby in turn deflect the support tongues 44 and thus the over-spring arms 34, resulting in a restoring force exerted by the subcontacts 32 and the support tongues 44 on the plug contact, which ensures secure contacting of the plug contact in the connection element 10.

Landscapes

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

Claims (11)

  1. Élément de raccordement électrique (10), comprenant
    un corps de base (15) pourvu d'au moins une portion de raccordement (14) et d'au moins une portion femelle (12), qui comprend au moins un bras de contact (28) pour venir en contact avec un contact mâle pouvant être introduit dans la portion femelle (12),
    dans lequel le bras de contact (28) est subdivisé en au moins deux contacts partiels (32) dans une zone de contact dans laquelle s'effectue la mise en contact du contact mâle introduit, et
    un ressort superposé (16) qui entoure le corps de base (15) dans la zone de la portion femelle (12) et qui présente au moins une patte de guidage (24) recourbée vers l'intérieur dans la zone d'une ouverture d'enfichage (26) pour le contact mâle, patte qui vient en chevauchement du côté intérieur avec une zone d'extrémité du bras de contact (28) et qui vient précontraindre le bras de contact (28) vers l'extérieur,
    caractérisé en ce que
    le ressort superposé (16) comprend au moins un bras de ressort superposé (34) qui coopère avec le bras de contact (28) au moins dans la zone de contact, de telle sorte que celui-ci peut se débattre à l'encontre d'une force de rappel du bras de ressort superposé (34), le ou chaque bras de ressort superposé (34) étant recourbé vers l'intérieur dans la zone de l'ouverture d'enfichage (26) pour le contact mâle.
  2. Élément de raccordement électrique (10) selon la revendication 1,
    caractérisé en ce que
    le ou chaque bras de ressort superposé (34) comprend au moins deux languettes d'appui (44) qui coopèrent chacune avec l'un des contacts partiels (32).
  3. Élément de raccordement électrique (10) selon la revendication 2,
    caractérisé en ce que
    les languettes d'appui (44) s'étendent en direction d'une ouverture d'enfichage (26) pour le contact mâle.
  4. Élément de raccordement électrique (10) selon la revendication 2,
    caractérisé en ce que
    les languettes d'appui (44) sont issues de portions d'appui (40) du bras de contact superposé (34).
  5. Élément de raccordement électrique (10) selon la revendication 4,
    caractérisé en ce que
    les portions d'appui (40) sont reliées par une barrette (42) qui va en particulier en rétrécissement par rapport aux portions d'appui (40).
  6. Élément de raccordement électrique (10) selon la revendication 4 ou 5,
    caractérisé en ce que
    les portions d'appui (40) sont reliées chacune à une paroi extérieure (17) du ressort superposé (16) au moyen d'une portion de liaison (38).
  7. Élément de raccordement électrique (10) selon l'une des revendications précédentes,
    caractérisé en ce que
    le corps de base (15) comprend deux bras de contact mutuellement opposés (28) et le ressort superposé (16) comprend deux bras de ressort superposé (34) qui coopèrent chacun avec l'un des bras de contact (28).
  8. Élément de raccordement électrique (10) selon l'une des revendications précédentes,
    caractérisé en ce que
    la patte de guidage (24) est issue d'une paroi extérieure (17) du ressort superposé (16) depuis lequel est également issu un bras de ressort superposé (34).
  9. Élément de raccordement électrique (10) selon l'une des revendications précédentes,
    caractérisé en ce que
    le ressort superposé (16) comprend au moins un ressort d'enclenchement primaire (18) qui s'étend vers l'extérieur et qui est agencé en particulier dans un renfoncement (22) d'une paroi extérieure (17) du ressort superposé (16).
  10. Élément de raccordement électrique (10) selon l'une des revendications précédentes,
    caractérisé en ce que
    le corps de base (15) et le ressort superposé (16) constituent des composants séparés, le ressort superposé (16) étant relié par coopération de formes au corps de base (15).
  11. Élément de raccordement électrique (10) selon l'une des revendications précédentes,
    caractérisé en ce que
    le corps de base (15) est réalisé sous forme de pièce poinçonnée pliée et/ou le ressort superposé (15) est réalisé sous forme de pièce poinçonnée pliée et sensiblement en forme parallélépipédique.
EP12177673.6A 2012-07-24 2012-07-24 Elément de raccordement électrique Active EP2690716B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP12177673.6A EP2690716B1 (fr) 2012-07-24 2012-07-24 Elément de raccordement électrique
US13/926,463 US9011186B2 (en) 2012-07-24 2013-06-25 Electrical connection element
KR1020130084181A KR101989442B1 (ko) 2012-07-24 2013-07-17 전기 단자 요소
CN201310310379.1A CN103579806B (zh) 2012-07-24 2013-07-23 电端子元件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12177673.6A EP2690716B1 (fr) 2012-07-24 2012-07-24 Elément de raccordement électrique

Publications (2)

Publication Number Publication Date
EP2690716A1 EP2690716A1 (fr) 2014-01-29
EP2690716B1 true EP2690716B1 (fr) 2018-05-02

Family

ID=46548331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12177673.6A Active EP2690716B1 (fr) 2012-07-24 2012-07-24 Elément de raccordement électrique

Country Status (4)

Country Link
US (1) US9011186B2 (fr)
EP (1) EP2690716B1 (fr)
KR (1) KR101989442B1 (fr)
CN (1) CN103579806B (fr)

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JP2014160545A (ja) * 2013-02-19 2014-09-04 Sumitomo Wiring Syst Ltd 雌端子金具
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TW201941505A (zh) 2018-03-16 2019-10-16 美商Ｆｃｉ美國有限責任公司 高密度電連接器
WO2019237046A1 (fr) 2018-06-07 2019-12-12 Royal Precision Products, Llc Système de connecteur électrique avec composant de ressort interne et ses applications
CN113508498A (zh) 2019-01-21 2021-10-15 皇家精密制品有限责任公司 具有无螺栓汇流排系统的配电组件
CN112350092B (zh) * 2019-08-08 2023-07-18 上海莫仕连接器有限公司 连接器及端子
DE112020003846T5 (de) 2019-09-09 2022-05-12 Royal Precision Products Llc Verbinderaufzeichnungssystem mit lesbaren und aufzeichenbarenkennzeichnungen
US11721942B2 (en) 2019-09-09 2023-08-08 Eaton Intelligent Power Limited Connector system for a component in a power management system in a motor vehicle
US10992073B1 (en) * 2019-12-20 2021-04-27 Lear Corporation Electrical terminal assembly with increased contact area
US11069999B2 (en) * 2019-12-20 2021-07-20 Lear Corporation Electrical terminal assembly with connection retainer
TWI744854B (zh) 2020-04-07 2021-11-01 大陸商東莞立訊技術有限公司 電連接器
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EP4080687A1 (fr) 2021-04-21 2022-10-26 Rosenberger Hochfrequenztechnik GmbH & Co. KG Agencement de connecteur enfichable et connecteur enfichable
CN113258372B (zh) 2021-05-26 2022-12-02 宣城立讯精密工业有限公司 电性连接套件及电性连接器
CN113258352B (zh) 2021-05-26 2022-11-29 宣城立讯精密工业有限公司 电性连接套件及电连接器

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Also Published As

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KR20140013939A (ko) 2014-02-05
CN103579806A (zh) 2014-02-12
EP2690716A1 (fr) 2014-01-29
US9011186B2 (en) 2015-04-21
CN103579806B (zh) 2016-08-17
US20140030934A1 (en) 2014-01-30
KR101989442B1 (ko) 2019-09-30

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