EP2243146B1 - Ressort de contact - Google Patents

Ressort de contact Download PDF

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Publication number
EP2243146B1
EP2243146B1 EP09710138A EP09710138A EP2243146B1 EP 2243146 B1 EP2243146 B1 EP 2243146B1 EP 09710138 A EP09710138 A EP 09710138A EP 09710138 A EP09710138 A EP 09710138A EP 2243146 B1 EP2243146 B1 EP 2243146B1
Authority
EP
European Patent Office
Prior art keywords
contact
spring
metal contact
bend
lamellae
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
EP09710138A
Other languages
German (de)
English (en)
Other versions
EP2243146A1 (fr
Inventor
Christian Dandl
Michael Wollitzer
Armin MAIWÄLDER
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.)
Rosenberger Hochfrequenztechnik GmbH and Co KG
Original Assignee
Rosenberger Hochfrequenztechnik GmbH and Co KG
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.)
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Publication date
Application filed by Rosenberger Hochfrequenztechnik GmbH and Co KG filed Critical Rosenberger Hochfrequenztechnik GmbH and Co KG
Publication of EP2243146A1 publication Critical patent/EP2243146A1/fr
Application granted granted Critical
Publication of EP2243146B1 publication Critical patent/EP2243146B1/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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point
    • H01R13/2492—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point multiple contact points
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H01H1/10—Laminated contacts with divided contact surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/18—End pieces terminating in a probe

Definitions

  • the present invention relates to a contact spring having a free contact end for producing an electrical contact between the free contact end and a contact surface, wherein the contact spring of N contact plates and N-1 spacer elements is formed with N ⁇ 2, wherein the contact spring plates in a clamping region, each with a Distance element between two adjacent contact plates are kept fixed, are spaced apart in a spring range, free spring parallel to each other to the free contact end and ends at the free contact end in a common plane, wherein the contact spring plates in the spring region at least one kink, each with a predetermined angle between the longitudinal axis of the contact spring plates in front of the bend and the longitudinal axis of the contact spring plates have after the kink, according to the preamble of claim 1.
  • an electrical contact in which a contact part is brought into contact with a plurality of leaf-shaped contact springs.
  • This spring packs are provided with a plurality of mutually parallel individual springs are mounted in a holder.
  • This arrangement requires a blade contact, which is introduced perpendicular to the spring pacts and deflects the individual springs of the spring assemblies perpendicular to a longitudinal axis of the individual springs. Therefore, the contact arrangement is not suitable for contacting a contact surface on a printed circuit board.
  • the generic DE 100 24 165 A1 relates to a Greiersystem with a first contact element and a second contact element, which are made of a resilient and at the same time conductive material.
  • the contact elements are each composed of a male part, an associated spring arm and a contact tip connected thereto, the spring arms having the contact tip at one end and the male part at the other end.
  • the spring arm is angled relative to the associated male part by an angle of approximately 80 °.
  • the contact tips are angled relative to the respective spring arm by an angle of about 120 °.
  • the contact tips serve in conjunction with the spring arms for contacting an electrical connection of an electronic component.
  • the two insertion parts of the contact elements are arranged in a receiving device with a printed circuit board arranged therebetween.
  • the spring arms are spaced apart in a region between the male parts and the contact tips, said distance being substantially smaller than a thickness of the printed circuit board which spaces the two male parts of the contact elements. This has the disadvantage that only a very small travel for the spring arms is
  • the brush comprises copper slats, wherein between adjacent copper slats very elastic metal springs are arranged. These metal springs press the copper lamellae with a constant pressure against a contact surface.
  • the package of copper fins and metal springs is clamped in a central area. From this central region, the copper lamellae extend with interposed metal springs with a kink and with increasing distance from one another to a contact plane.
  • the invention is based on the object, a contact spring of o.g. To improve the type of contact resistance and current transfer capacity.
  • the contact spring plates are spaced apart in the spring region by the thickness of the spacer elements and starting from the free contact end at least one of the contact spring plates each having at least one slot.
  • the common plane of the free contact end is arranged perpendicular to a longitudinal axis of the contact spring plates and spacer elements in the clamping region.
  • the contact spring plates expediently have two, three or four kinks in the spring region.
  • the contact spring plates in the spring region have at least one slot, adjoining the slot are mutually independent resilient contact tongues and multiply the free contact end free resilient contact elements, so that multiply the contact points accordingly.
  • the at least one slot extends over at least one bend of the contact spring plates and preferably runs parallel to a longitudinal axis of the contact spring plates.
  • the contact spring plates and spacer elements are, for example, riveted and / or screwed together in the clamping area.
  • the spacer elements extend over a part of the clamping region or over the entire length of the clamping region.
  • the predetermined angle between the longitudinal axis of the contact spring plates in front of the kink and the longitudinal axis of the contact spring plates after the kink is identical for all kinks.
  • a substantially zigzag-shaped design of the spring region is achieved in that, in the spring region, the predetermined angle between the longitudinal axis of the contact spring plates before the kink and the longitudinal axis of the contact spring plates after the kink, starting from the clamping region in the direction of the contact end, increases for a first kink 90 ° and for each additional bend is less than or equal to 90 °.
  • the sum of the angle 28 of two successive bends 24 is equal to or greater than 180 °.
  • a contact spring comprises a free contact end 10 for making electrical contact with a more or less flat contact surface (not shown).
  • the contact spring plates 12 are held fixed in a clamping region 16, each with a spacer element 14 between two adjacent contact plates 12.
  • the spacer elements 14 extend only over the clamping region 16.
  • the contact spring plates 12 extend beyond the clamping region 16 and form a spring region 20 between the clamping region 16 and the contact end 10.
  • the contact spring plates 12 are spaced apart from each other by the thickness of the spacer elements 14 and thus spring freely and independently of each other, as long as they do not abut each other due to the spring travel. Furthermore, the contact spring plates 12 are formed such that they extend over the entire length of the spring region 20 between the contact end 10 and the clamping region 16 parallel to each other. At the free contact end 10, the contact spring plates 12 end in a common plane, which is aligned perpendicular to a longitudinal axis 22 of the contact spring plates 12 in the clamping region 16.
  • the space between the contact sheets 12 is empty, that is, no spacer 14 is provided, as in particular from Fig. 3 and 4 seen. This free space is used for compressing the contact spring in the direction of the longitudinal axis 22nd
  • the contact spring plates 12 in the spring region 20 at least one kink 24 each having a predetermined angle 26, 28 between the longitudinal axis 22 and 23 of the contact spring plates 12 in front of the kink 24 and the longitudinal axis 23 of the contact spring plates 12 after the kink 24.
  • all longitudinal axes are designated by a kink 24 by the reference numeral 23.
  • angle is meant between two longitudinal axes 23 of the respective smaller of the two complementary angles at a kink 24, as in the Fig. 3 and 4 shown.
  • the contact spring plates 12 are each provided with a slot 30.
  • the spring travel of the contact spring according to the invention is with the thickness the spacer elements 14 set.
  • the hardness of the spring is adjusted by the thickness and width of the contact spring plates 12 and by the number of contact spring plates 12.
  • the high-current contact spring according to the invention is characterized by a very low contact resistance with a sufficiently large material cross-section and low spring stiffness.
  • the contact spring is preferably suitable for touching (contact) on flat surfaces, such as pads or contact surfaces of printed circuit boards.
  • the contact spring shown by way of example in the figures has eleven contact spring plates 12 and ten spacer elements or intermediate plates 14. Through the central slot 30, the resulting through the slot 30 left and right contact spring half spring independently. As a result, both spring halves contact securely on the contact surface. The contact spring remains but laterally stable. Depending on the application, two, three or more slots 30 may also be provided, resulting in a corresponding tripling, quadrupling or multiplication of the independently spring-loaded contact spring halves.
  • the spacers or intermediate plates 14 provide the necessary flexibility in compression by ensuring a sufficiently large gap 32 between the contact plates 12.
  • the many independently resilient contact points form the basis for a low contact resistance, since the contact pressure at each contact point is uniformly high.
  • the contact spring according to the invention comprises a block of S-shaped bent contact spring plates or individual springs 12, wherein the resilient geometry is identical in all contact springs or individual springs 12 of the block.
  • individual contact plates 12 may have additional cross sections (attachments). It results in an advantageous manner, a low contact resistance, a rigid contact perpendicular to the working and contacting plane as well as a soft spring with a larger material cross-section and a compact overall dimension.
  • the spring stiffness is essentially determined by the material thickness and the number of contact spring plates or individual springs 12.
  • Fig. 5 and 6 show a contacting element 34 which has a plurality of contact springs according to the invention to produce a plurality of mutually separate electrical contacts in parallel.

Landscapes

  • Contacts (AREA)
  • Measuring Leads Or Probes (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

L’invention concerne un ressort de contact doté d’une extrémité de contact libre (10), pour réaliser un contact électrique entre l’extrémité de contact libre (10) et une surface de contact, sachant : que le ressort de contact est constitué de N tôles élastiques de contact (12) et de N-1 éléments écarteurs (14), avec N ≥ 2 ; que les tôles élastiques de contact (12), dans une zone de serrage (16), sont maintenues fixées par un élément écarteur respectif (14) entre deux tôles élastiques de contact voisines (12) ; et que, dans une zone de ressort (20), elles sont mutuellement distantes de l’épaisseur des éléments écarteurs (14), elles s’étendent parallèlement entre elles jusqu’à l’extrémité de contact libre (10) en étant librement élastiques, et elles se terminent dans un plan commun à l’extrémité de contact libre (10). Selon l’invention, les tôles élastiques de contact (12) présentent, dans la zone de ressort (20), au moins une inflexion (24) avec chaque fois un angle prédéfini (26, 28) entre l’axe longitudinal (22, 23) des tôles élastiques de contact (12) avant l’inflexion (24) et l’axe longitudinal (23) des tôles élastiques de contact (12) après l’inflexion (24).

Claims (11)

  1. Ressort de contact comprenant une extrémité de contact libre (10) pour établir un contact électrique entre l'extrémité de contact libre (10) et une surface de contact, ledit ressort de contact étant réalisé à partir de N tôles de ressort de contact (12) et N-1 éléments d'écartement (14) tels que N ≥ 2, de sorte que les tôles de ressort de contact (12) sont maintenues dans une zone de serrage (16) en étant fixées avec un élément d'écartement respectif (14) entre deux tôles de ressort de contact (12) voisines, sont écartées les unes des autres dans une zone de ressort (20), s'étendent parallèlement les unes aux autres jusqu'à l'extrémité de contact libre (10) avec effet ressort, et se terminent à l'extrémité de contact libre (10) dans un plan commun, dans lequel les tôles de ressort de contact (12) présentent dans la zone de ressort (20) au moins un pli (24) avec respectivement un angle prédéterminé (26, 28) entre l'axe longitudinal (22, 23) des tôles de ressort de contact (12) avant le pli (24) et l'axe longitudinal (23) des tôles de ressort de contact (12) après le pli (24),
    caractérisé en ce que les tôles de ressort de contact (12) sont écartées les unes des autres, dans la zone de ressort (20), à raison de l'épaisseur des éléments d'écartement (14) et présentent respectivement au moins une fente (30) en partant de l'extrémité de contact libre (10) de l'une au moins des tôles de ressort de contact (12).
  2. Ressort de contact selon la revendication 1, caractérisé en ce que le plan commun de l'extrémité de contact libre (10) est agencé perpendiculaire à un axe longitudinal (22) des tôles de ressort de contact et des éléments d'écartement dans la zone de serrage (16).
  3. Ressort de contact selon la revendication 1 ou 2, caractérisé en ce que les tôles de ressort de contact (12) comportent deux, trois ou quatre coudes (24) dans la zone de ressort (20).
  4. Ressort de contact selon l'une au moins des revendications précédentes, caractérisé en ce que, partant de l'extrémité de contact libre (10), toutes les tôles de ressort de contact (12) comportent respectivement au moins une fente (30).
  5. Ressort de contact selon l'une au moins des revendications précédentes, caractérisé en ce que ladite au moins une fente (30) s'étend au-delà d'au moins un pli (24) des tôles de ressort de contact (12).
  6. Ressort de contact selon l'une au moins des revendications précédentes, caractérisé en ce que ladite au moins une fente (30) s'étend parallèlement à un axe longitudinal (23) des tôles de ressort de contact (12) dans la zone de ressort (20).
  7. Ressort de contact selon l'une au moins des revendications précédentes, caractérisé en ce que les tôles de ressort de contact (12) et les éléments d'écartement (14) sont rivetées et/ou vissées ensemble dans la zone de serrage (16).
  8. Ressort de contact selon l'une au moins des revendications précédentes, caractérisé en ce que les éléments d'écartement (14) s'étendent sur une partie de la zone de serrage (16) ou sur la totalité de la longueur de la zone de serrage (16).
  9. Ressort de contact selon l'une au moins des revendications précédentes, caractérisé en ce que l'angle prédéterminé (26, 28) entre l'axe longitudinal (22, 23) des tôles de ressort de contact (12) avant le pli (24) et l'axe longitudinal (23) des tôles de ressort de contact (12) après le pli (24) est identique pour tous les plis (24).
  10. Ressort de contact selon l'une au moins des revendications précédentes, caractérisé en ce que, dans la zone de ressort (20), l'angle prédéterminé (26, 28) entre l'axe longitudinal (22, 23) des tôles de ressort de contact (12) avant le pli (24) et l'axe longitudinal (23) des tôles de ressort de contact (12) après le pli (24), partant de la zone de serrage (16) vue en direction de l'extrémité de contact (30), est plus grand que 90° pour un premier pli (24) et est plus petit ou égal à 90° pour chaque pli suivant (24).
  11. Ressort de contact selon l'une au moins des revendications précédentes, caractérisé en ce que la somme des angles (26, 28) de deux plis mutuellement successifs (24) est égale ou supérieure à 180°.
EP09710138A 2008-02-14 2009-01-21 Ressort de contact Active EP2243146B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008001997U DE202008001997U1 (de) 2008-02-14 2008-02-14 Kontaktfeder
PCT/EP2009/000351 WO2009100807A1 (fr) 2008-02-14 2009-01-21 Ressort de contact

Publications (2)

Publication Number Publication Date
EP2243146A1 EP2243146A1 (fr) 2010-10-27
EP2243146B1 true EP2243146B1 (fr) 2012-06-27

Family

ID=39265537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09710138A Active EP2243146B1 (fr) 2008-02-14 2009-01-21 Ressort de contact

Country Status (9)

Country Link
US (1) US8021168B2 (fr)
EP (1) EP2243146B1 (fr)
KR (1) KR101520347B1 (fr)
CN (1) CN101952919B (fr)
CA (1) CA2714938C (fr)
DE (1) DE202008001997U1 (fr)
HK (1) HK1153568A1 (fr)
TW (1) TWM360449U (fr)
WO (1) WO2009100807A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3012299C (fr) * 2016-01-31 2022-05-31 Mediwound Ltd. Composition de debridement destinee au traitement des plaies
DE102022116188A1 (de) 2022-06-29 2024-01-04 Harting Electric Stiftung & Co. Kg Kontaktfederbaugruppe für elektrische Kontaktvorrichtungen

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DE886616C (de) 1943-08-21 1953-08-17 Lorenz C Ag Elektrischer Kontakt
DE863685C (de) 1951-04-18 1953-01-19 Siemens Ag Stufenschalter fuer hohe Stromstaerken, insbesondere Schweissstromregler
NL277542A (fr) * 1957-01-23
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DE3625864A1 (de) * 1986-07-31 1988-02-04 Multi Contact Ag Elektrische kontaktvorrichtung
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CH694478A5 (de) * 2000-01-20 2005-01-31 Multi Holding Ag Kontaktelement.
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Also Published As

Publication number Publication date
WO2009100807A1 (fr) 2009-08-20
CA2714938C (fr) 2016-09-27
CN101952919A (zh) 2011-01-19
CA2714938A1 (fr) 2009-08-20
TWM360449U (en) 2009-07-01
HK1153568A1 (en) 2012-03-30
KR101520347B1 (ko) 2015-05-14
US8021168B2 (en) 2011-09-20
DE202008001997U1 (de) 2008-04-03
US20110028053A1 (en) 2011-02-03
KR20100125319A (ko) 2010-11-30
EP2243146A1 (fr) 2010-10-27
CN101952919B (zh) 2013-01-02

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