EP0859431A2 - Ressort de contact d'une seule piece - Google Patents

Ressort de contact d'une seule piece Download PDF

Info

Publication number
EP0859431A2
EP0859431A2 EP97121864A EP97121864A EP0859431A2 EP 0859431 A2 EP0859431 A2 EP 0859431A2 EP 97121864 A EP97121864 A EP 97121864A EP 97121864 A EP97121864 A EP 97121864A EP 0859431 A2 EP0859431 A2 EP 0859431A2
Authority
EP
European Patent Office
Prior art keywords
spring
contact
arm
arms
contact spring
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.)
Granted
Application number
EP97121864A
Other languages
German (de)
English (en)
Other versions
EP0859431B1 (fr
EP0859431A3 (fr
Inventor
Hans-Jost Heimüller
Joris Dobbelaere
Dimitri Meulemeester
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.)
TE Connectivity Solutions GmbH
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0859431A2 publication Critical patent/EP0859431A2/fr
Publication of EP0859431A3 publication Critical patent/EP0859431A3/fr
Application granted granted Critical
Publication of EP0859431B1 publication Critical patent/EP0859431B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H01R4/185—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion

Definitions

  • the invention relates to a one-piece contact spring a box-shaped contact part, on which one Bottom wall and a top wall is molded from which each have a spring arm in the Contact part inside is bent back, the spring arms run towards each other and at their ends with free resilient contact tips are provided, and with a molded on opposite side of the connector.
  • Contact springs are used, for example, on a large scale Connectors used in automotive technology and have often over two parts to be manufactured separately, namely a base spring and one over the base spring too slipping over spring or also called locking sleeve.
  • the base spring has the plug side of the contact spring facing end of two spring arms, on the plug side the contact spring remote end in one piece a connector is molded for an electrical conductor.
  • the basic spring is preferably a stamped and bent part and exists because of necessary good electrical property preferably from galvanized brass, galvanized copper or so-called Feather bronze.
  • the over-spring to be put over the base spring essentially has the function of the spring force of the Increase contact spring and by training with or several locking tongues a releasable locking of the Contact spring in a contact chamber of a housing To enable insulation material.
  • the releasable locking of the Contact spring through such latches is also called Primary locking designated.
  • the spring is in the Usually made of a material with good spring properties and can also be manufactured as a stamped and bent part. As Material is suitable for example sheet metal.
  • one-piece Contact springs become known.
  • Such a one-piece Contact springs show the two documents US-A-4,152,042 and FR-A-2,157,490. In both documents are described box-shaped contact parts of a contact spring, which have spring arms bent back into the interior of the box.
  • FR-A-2,157,490 describes a box-shaped contact part a contact spring, either of each of the four Sidewalls bent back spring arms or only in each case has two spring arms bent back opposite.
  • the four in the spring arms bent back inside the box lie above them a relatively long area on the associated Side wall on flat, then diagonally over the remaining length to be bent obliquely inwards.
  • Spring arms are approximately V-shaped and lie with their ends again on the associated inner walls of the side walls on. The opposing spring arms are relatively far apart.
  • US-A-4,152,042 there is an improved contact spring for this described.
  • the contact spring is characterized by two of two opposite side walls into the box interior spring arms bent back.
  • the spring arms are outgoing bent back by 180 ° from the attached side walls, and then converge towards each other in an arc.
  • the free ends these spring arms are relatively narrow opposite contact tips provided, which also with Inserting a small plug contact is a safe one Allow plug connection.
  • To relieve the bending of the Both spring arms are the spring arms in the area of the bend provided with a recess on the inside. This will achieved a greater elasticity of the bend.
  • the spring arms run in an arc from the bend towards each other. This inevitably leads to the introduction of one Plug contact in the contact spring and the associated Pushing apart the ends of the spring arms so that the Bending is relatively heavily loaded. This can U. even to damage or break the Guide the contact spring at the bending points.
  • the invention is therefore based on the object to develop such contact spring so that this one has greater strength and thus even with repeated Inserting an appropriate plug contact does no damage takes.
  • each of the two spring arms is supported on a support device to relieve the bending of the respective spring arm, and that this support device from the front end of the bending directed to the plug side by about two to five times the thickness the bottom wall or ceiling wall is set back into the inside of the box.
  • Such a design of the contact spring can be a very inexpensive, reliable and robust miniature socket contact, also suitable for so-called mat seals, e.g. B. for a plug contact size 0.63 mm x 0.63 mm, with crimp or IDC cable connection.
  • Such a contact spring can be secured in position in a simple manner by means of a latching hook suitable for this purpose within a plug housing.
  • the whole certain predetermined location of the contact spring on the ground or Ceiling wall is to be arranged in one piece Relieving molded spring arms can even with multiple insertion of a plug contact an effective Breakage protection can be achieved at the bending points.
  • the support device is according to the invention from the front end the bend by about two to five times the thickness of the Floor or ceiling wall set back inside the box arranged. This arrangement of the support device optimal relief of the bending point of the Reach the spring arm.
  • the support device can be in different ways and Way to be realized.
  • the two spring arms in each of the above Area shortly after the 180 ° bend with a kink provided with which they are on the bottom wall or Support the top wall of the contact part, so that in their Relieve 180 ° bend affecting strength.
  • the spring arms of the contact spring by one from the bottom wall and the top wall bent out support arm, which is preferably at its distal End has a chamfer to enlarge the contact surface, supported.
  • the overall length of the box-shaped Not unnecessarily enlarge contact part and on the other hand the greatest possible elastic deflection of the spring arms reach, the support is provided by the support arms not at the contact point itself, i.e. in the Contact tip area of the spring arms, but at least about almost in the middle of the spring arms.
  • the spring arms are like this designed that this with heavy load on the inner walls bump the bottom wall and ceiling wall and thus protect yourself against bending.
  • Fig. 1 are different views of a first Embodiment of a one-piece contact spring after presented the invention.
  • Fig. 1a shows the one-piece Contact spring with a view from above of the inside of the here exemplary U-shaped connector 3, which has a U-shaped connecting web 9 with a box-shaped Contact part 1 is integrally connected.
  • the whole Contact spring consists of a stamped sheet metal part that 5 bent in a special way according to the explanation of FIG becomes.
  • FIG. 1b and 1c show the top views from behind the contact spring or from the front onto the contact spring.
  • Fig. 1d is a side view and in FIG. 1e a sectional view along the section line A-A of Fig. 1a of the contact spring shown.
  • the connector is as Crimp connection formed. However, it could be another Connection part, e.g. B. a so-called IDC connection, here be provided.
  • IDC connection a so-called IDC connection, here be provided.
  • points the crimp connection a rear insulation claw 5 and one adjoining conductor wire claw 7 in the plugging direction.
  • the conductor wire claw 7 is above that already mentioned Connecting web 9 to the box-shaped contact part 1 molded.
  • the box-shaped contact part has a bottom wall 11 and a top wall 15 which has a first side wall 17 are connected to each other. On the bottom wall 11 a second closes parallel to the side wall 17 Side wall 13, one at its upper end orthogonally in the direction of opposite side wall 17 jumping box rag 19. This box cloth 19 engages over the top wall 15 and thus serves for one secure clamping of the box-shaped contact part 1.
  • this box flap 19 does not quite reach to the front end of the box-shaped contact part. Of the Box flap 19 is shorter.
  • the side wall 13 has an L-shaped in the front region recess 47, into which a projection 45, which is molded onto the ceiling wall 15, lies flat.
  • the recess 47 thus serves as a stop for the projection 45.
  • the stop is identified by reference numeral 43 in FIG. 2 designated.
  • the box flap 19, which, as mentioned, only about half Middle of the ceiling 15 is enough, not only serves secure clamping of the box-shaped contact part 1, but thanks to its design it can also be used as Serve polarization. Unless a case in which this Insert the contact spring, a corresponding one Has inner wall is only a right-sided Ensure that the contact spring is inserted.
  • FIG. 2 additionally shows one in the side wall 13 incorporated hole 41, which also can be formed as an embossing.
  • This perforation 41 serves as a stop for a bending process in connection with Fig. 5 will be explained.
  • the one-piece contact spring shows how special the sectional view of Fig. 1e clearly shows two spring arms 25, 27, which are integral with the bottom wall 11 or Ceiling 15 molded and by 180 ° bend in the Are bent back inside the box.
  • the two spring arms 25, 27 run towards each other with their distal ends and are at their ends with freely springy contact tips 31st Mistake.
  • the two contact tips 31 are proportionate close to each other so that even when introducing small Contact pins secure contacting is guaranteed.
  • At least the two spring arms 25, 27 are in the contact tip area preferably with a metallization layer, e.g. B. one Gold or tin plating 39 provided, so that an even better Contacting an inserted contact pin possible is.
  • Support arms 21 and 23 incorporated. These support arms 21, 23 are bent inside the box and support the spring arms 25, 27 approximately in the middle and thus clearly spaced from Contact area. For a good support of the spring arms 25, 27 on the support arms 21, 23 ensure that Support arms 21, 23 chamfered at their front end.
  • the support arms 21, 23 serve to limit the bending stress. Since the support arms 21, 23 are self-resilient, a much longer travel with the same contact force ensured.
  • FIG. 3 is based on a detailed view the front end of the contact part 1, the formation of the mentioned support 29 and the dimensioning of Spring arms 25, 27 and the support arms 21, 23 explained in more detail.
  • the detailed view shown in Fig. 3 is only sections of the bottom wall 11, the support arm 21 and the Spring arm 25 shown.
  • the dimensioning of the support arm 23 and the associated spring arm 27 is similar.
  • a recess 37 can be provided, which by a Tapering of the sheet metal part is formed at this point.
  • the 6 is box-shaped Contact part 1 if not yet completely between the Contact springs inserted contact pin 51 shown.
  • the Bottom wall 11 and ceiling wall 15 have relief the support arms 21, 23 each have a stiffening bead 35 on.
  • the spring arms 25, 27 can be completely inserted contact pin 51 with its distal ends support this stiffening beads 35 and are thus in front protected from overbending.
  • the Sheet metal part has an approximately rectangular area that adjacent sections for the top wall 15, a side wall 17, a bottom wall 11, another Has side wall 13 and a box flap 19.
  • the Section of the ceiling wall 15 are already incisions for a support arm 23 and 11 incisions in the bottom wall a support arm 21 incorporated.
  • From the front section of the Top wall 15 and from the front portion of the bottom wall 11 extend two elongated metal strips, which for Formation of the two spring arms 25, 27 are provided.
  • the Side wall 13 has already an embossing 41 inserted as a stop during the bending process for the upper box section serves.
  • the spring arm 27 is still bent further so that it is bent back by 180 °.
  • the bottom wall 11 remains flat lie on a mat.
  • the Spring arm 25 bent back 180 ° and then that box-shaped contact part completely closed by the Box flap 19 engages over the top wall 15 (see FIG. 5a).

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Indoor Wiring (AREA)
EP97121864A 1997-02-13 1997-12-11 Ressort de contact d'une seule piece Expired - Lifetime EP0859431B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19705509 1997-02-13
DE19705509A DE19705509C2 (de) 1997-02-13 1997-02-13 Einstückige Kontaktfeder

Publications (3)

Publication Number Publication Date
EP0859431A2 true EP0859431A2 (fr) 1998-08-19
EP0859431A3 EP0859431A3 (fr) 1999-05-06
EP0859431B1 EP0859431B1 (fr) 2001-03-21

Family

ID=7820139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121864A Expired - Lifetime EP0859431B1 (fr) 1997-02-13 1997-12-11 Ressort de contact d'une seule piece

Country Status (5)

Country Link
US (1) US5941741A (fr)
EP (1) EP0859431B1 (fr)
JP (1) JPH10233251A (fr)
KR (1) KR100503824B1 (fr)
DE (2) DE19705509C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011067632A1 (fr) * 2009-12-03 2011-06-09 Fci Automotive Holding Borne de connexion électrique
EP2719022B1 (fr) * 2011-06-13 2019-05-08 TE Connectivity Corporation Contact de prise et procede d'insertion d'un contact complémentaire en cela.

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JP2014160545A (ja) * 2013-02-19 2014-09-04 Sumitomo Wiring Syst Ltd 雌端子金具
JP2014170709A (ja) * 2013-03-05 2014-09-18 Sumitomo Wiring Syst Ltd 雌端子金具
CN104348009A (zh) * 2013-07-25 2015-02-11 凡甲电子(苏州)有限公司 电源连接器
JP2015099717A (ja) * 2013-11-20 2015-05-28 株式会社オートネットワーク技術研究所 雌端子
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Publication number Priority date Publication date Assignee Title
WO2011067632A1 (fr) * 2009-12-03 2011-06-09 Fci Automotive Holding Borne de connexion électrique
US8827756B2 (en) 2009-12-03 2014-09-09 Delphi International Operations Luxembourg S.A.R.L. Electrical terminal
EP2719022B1 (fr) * 2011-06-13 2019-05-08 TE Connectivity Corporation Contact de prise et procede d'insertion d'un contact complémentaire en cela.

Also Published As

Publication number Publication date
US5941741A (en) 1999-08-24
EP0859431B1 (fr) 2001-03-21
JPH10233251A (ja) 1998-09-02
DE19705509C2 (de) 1999-04-29
KR100503824B1 (ko) 2005-10-26
EP0859431A3 (fr) 1999-05-06
DE19705509A1 (de) 1998-08-20
KR19980071317A (ko) 1998-10-26
DE59703185D1 (de) 2001-04-26

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