EP2147481B1 - Elektrische verbindungen - Google Patents

Elektrische verbindungen Download PDF

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Publication number
EP2147481B1
EP2147481B1 EP08762958.0A EP08762958A EP2147481B1 EP 2147481 B1 EP2147481 B1 EP 2147481B1 EP 08762958 A EP08762958 A EP 08762958A EP 2147481 B1 EP2147481 B1 EP 2147481B1
Authority
EP
European Patent Office
Prior art keywords
contact
groove
band
border
projections
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
EP08762958.0A
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English (en)
French (fr)
Other versions
EP2147481A2 (de
Inventor
Stefan Panzner
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.)
Safran Electrical Components UK Ltd
Original Assignee
Zodiac Interconnect UK Ltd
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Filing date
Publication date
Application filed by Zodiac Interconnect UK Ltd filed Critical Zodiac Interconnect UK Ltd
Publication of EP2147481A2 publication Critical patent/EP2147481A2/de
Application granted granted Critical
Publication of EP2147481B1 publication Critical patent/EP2147481B1/de
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
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4881—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a louver type spring
    • 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
    • H01R13/17—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member on the pin
    • 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

  • This invention relates to electrical connections.
  • the invention is concerned in particular with electrical connections of the kind in which two contact-parts of the connection are interconnected electrically via an intermediate, resilient contact-band carried by one of the contact-parts. Electrical connections of this kind are used especially where currents of high magnitude are to pass between the two contact-parts, and are known, for example, from US-A-5,261,840 .
  • the resilient contact-band used in electrical connections of the above-specified kind may be of a unitary strip-metal structure having a multiplicity of closely-spaced and mutually-parallel lamella-elements which extend between border-regions of the band that interconnect the lamella-elements along opposite sides of the strip-metal.
  • Each lamella-element has a central head-portion with two shoulder-portions through which the head-portion is linked to the two border-regions respectively, and is twisted between the shoulder-portions and the border-regions to give resilience with the head-portion inclined upwardly and the shoulder-portions inclined downwardly from the border-regions.
  • Each border-region has outwardly-extending projections that are used for retaining the band within a surface-groove of one of the contact-parts with the shoulder-portions of the lamella-elements abutting the floor of the groove of the band-carrying part.
  • the contact-band may as an alternative comprise an elongate base-structure that carries a multiplicity of individual contact-elements which have head- and shoulder-portions corresponding to those of the lamella-elements referred to above, for establishing the multiplicity of parallel current paths between the two contact-parts.
  • the base-structure carrying the contact-elements includes border-regions on either side of the contact-band for interconnecting the contact-elements and providing the outwardly-extending projections for retaining the band in its groove.
  • the groove in which the contact-band is located has a dovetail cross-section in that opposite walls of the groove are inclined inwardly towards one another so that its width reduces upwardly of the groove.
  • the contact-band is retained in the groove by engagement of outwardly-extending projections on both sides of the band under the inwardly-inclined walls, and although this is capable of ensuring secure retention of the band directly within the groove, it requires the band to be installed by feeding it lengthwise into the groove. This requirement adds to the cost and difficulty of manufacturing the electrical connection with its upwardly-narrowing groove of dovetail cross-section, not only in assembly of the connection initially, but also during replacement of the band for repair.
  • a two-part electrical connection in which first and second contact-parts of the connection are interconnected electrically via an intermediate, resilient contact-band that extends lengthwise within a surface-groove of the first contact-part and has projections which extend outwardly from each of two opposite border-regions of the band, wherein the projections from each border-region extend into a respective one of two laterally-spaced slots in the floor of the groove that run lengthwise of the groove, the projections of each border-region extending into the respective slot to engage resiliently with an outermost wall with the groove in retention of the contact-band in the groove, characterised in that the outermost walls with which the projections engage resiliently are the outside walls of the two slots respectively, and that the outermost wall of each slot is inclined to the floor of the groove (for example at substantially 60 degrees) such that the lateral spacing between the outermost walls of the two slots increases with increasing slot-depht.
  • the two-part electrical connection of this aspect of the invention has the advantage that retention of the contact-band in the groove does not require the walls of the groove to have a dovetail or other entry-limiting cross-section for engagement by the outwardly-extending projections, since it is engagement of the projections within the slots that is used for retention. Consequently, the cross-section of the groove may be chosen to admit the contact-band directly into the groove simply by pressing it down into the groove. Entry of the projections into the slots as the contact-band is pressed down into the groove, may be facilitated by the resilience of the projections themselves and to a lesser extent possibly by a degree of lateral resilience of the contact-band when out of the groove.
  • each slot of the two-part connection of the invention may include an inwardly-projecting lip or rim such that retention of the contact-band in the groove is in part by resilient engagement of the outwardly-extending projections of each border-region under the lip or rim of the respective slot.
  • Foot-extremities of the projections may be configured to engage under the lip or rim, or more especially substantially conformally with the underside of the lip or rim, to enhance retention of the contact-band further.
  • a method of assembly of a two-part electrical connection in which first and second contact-parts of the connection are interconnected electrically via an intermediate, resilient contact-band which has projections that extend outwardly from each of two opposite border-regions of the contact-band
  • the method comprises the steps of locating the contact-band aligned lengthwise with, but spaced above, a surface-groove of the first contact-part, and pressing the contact-band down into the groove for entry of the projections of each border-region into a respective one of two laterally-spaced slots in the floor of the groove that run lengthwise of the groove, for retention of the contact-band in the groove by resilient engagement of the outwardly-extending projections of each border-region with an outermost wall within the groove, and bringing the first and second contact-parts together into electrical interconnection via the contact-band squeezed resiliently between them, characterised in that the outermost walls with which the projections engage resiliently are the outside walls of the two slots respectively, and that the outermost
  • the method of assembly may be applied during manufacture or repair of the two-part connection.
  • the resilient contact-band 1 used in the example of electrical connection to be described is of a unitary strip-metal structure having a multiplicity of closely-spaced and mutually-parallel lamella-elements 2 which extend between border-regions 3 of the band 1 that interconnect the elements 2 along opposite sides of the strip-metal.
  • Each lamella-element 2 has a central head-portion 4 with two shoulder-portions 5 that link the head-portion 4 to the two border-regions 3 respectively, and is twisted between each shoulder-portion 5 and its adjoining border-region 3 to give resilience to the element 2 with the head-portion 4 inclined upwardly and the shoulder-portions 5 inclined downwardly from the border-regions 3.
  • Each border-region 3 has outwardly-extending projections in the form of resilient legs 6 spaced apart from one another along the length of the band 1.
  • the contact-band 1 is used for electrical interconnection of two contact-parts 10 and 11 of a two-part electrical connection.
  • the band 1 is located within a surface-groove 12 (more clearly shown in Figure 3 ) of the contact-part 10 with areas of the shoulder-portions 5 of each lamella-element 2 abutting the floor 13 of the groove 12, and the head-portion 4 abutting a surface 14 of the other contact-part 11 of the connection.
  • the contact-parts 10 and 11 may be cooperating contact-plates or -blades of a bus-bar form of connection; examples of such a form are illustrated in, and are described with reference to, Figure 1 of US-A-5, 261, 840 and Figure 1 of US-A-5, 360, 355 .
  • connection may be of a plug-and-socket form in which the contact-part 10 is a cylindrical plug and the contact-part 11 provides the plug-receiving socket(the section of Figure 2 in this case being taken axially of the plug and socket), or vice versa, and the groove 12 is circumferential externally or internally of the plug and socket respectively, with the band 1 having the form of a ring occupying the full circumference (the cross-section of the cylindrical plug and socket will normally be circular but may be otherwise).
  • plug-and-socket forms of two-part connections where one of the contact-parts is a cylindrical plug and the other has a plug-receiving socket are illustrated in, and are described with reference to, Figure 7 of US-A-5,261,840 and Figures 6 and 7 of US-A-6,547,607 ;
  • Figure 10 of US-A-5,261,840 illustrates an example of an alternative form of plug-and-socket connection.
  • the band 1 is retained in the groove 12 of the contact-part 10 by means of the legs 6. More particularly, the legs 6 of each border-region 3 of the band 1 are engaged in a respective one of two laterally-spaced slots 15 in the floor 13 of the groove 12.
  • the legs 6 of each border-region 3 extend into the respective slot 15 to engage resiliently against the outermost wall 16 of that slot 15.
  • each slot 15 Owing to the outward inclination with depth, of each slot 15, the engagement of the legs 6 of the respective border-region 3 with the slot 15 is 'under' its outermost wall 16 to the extent that any tendency for withdrawal of any of the legs 6 from that slot 15 is opposed resiliently by the remainder of the band 1.
  • the contact-band 1 can be engaged in the groove 12 during assembly of the electrical connection by initially entering the legs 6 of both border-regions 3 into the mouths of the respective slots 15 with the band 1 aligned lengthwise with, but straddling, the groove 12, as illustrated in Figure 5(a) . Entry of the legs 6 into the mouths of the slots 15 in this way may be eased where, as in this example, the walls 16 of the slots 15 are co-terminus with walls 17 of the surface-groove 12, by bevelling the edges of the walls 17; the walls 17 may bevelled for example as illustrated in Figure 4 at an angle of 50 degrees. Bevelling of the edges of the walls of the surface-groove in this way in electrical connections of the prior art is not a practical possibility since it would militate against secure retention of the contact-band.
  • Figures 6(a) and (b) illustrate a modification that may be used to enhance retention. This involves the provision, as shown in Figure 6(a) , of an inwardly-projecting lip or rim 20 to the outermost wall 16 of each slot 15, and, as shown in Figure 6(b) , an upwardly-slanted or turned-up foot-extremity 21 to each leg 6 of the contact-band 1.
  • contact-band 1 is of a unitary form this is not essential to the invention.

Claims (15)

  1. Zweiteilige elektrische Verbindung, in der erste und zweite Kontaktteile (10, 11) der Verbindung über ein elastisches Zwischenkontaktband (1), das sich längs in einer Oberflächennut (12) des ersten Kontaktteils (10) erstreckt und Vorsprünge (6) hat, die sich von jeder von zwei entgegengesetzten Grenzregionen (3) des Bands (1) auswärts erstrecken, elektrisch miteinander verbunden sind, wobei die Vorsprünge (6) von jeder Grenzregion (3) sich in einen jeweiligen von zwei seitlich beanstandeten Schlitzen (15) in dem Boden (13) der Nut (12) erstrecken, welche längs der Nut (12) verlaufen, wobei die Vorsprünge (6) jeder Grenzregion (3) sich in den jeweiligen Schlitz (15) erstrecken, um mit einer äußersten Wand (16) in der Nut (12) unter Beibehaltung des Kontaktbands (1) in der Nut (12) elastisch einzugreifen, dadurch gekennzeichnet, dass die äußersten Wände, mit denen die Vorsprünge (6) elastisch eingreifen, jeweils die Außenwände (16) der zwei Schlitze (15) sind, und dass die äußerste Wand (16) jedes Schlitzes (15) zu dem Boden (13) der Nut (12) derart geneigt ist, dass der seitliche Abstand zwischen den äußersten Wänden (16) der zwei Schlitze (15) mit zunehmender Schlitztiefe zunimmt.
  2. Zweiteilige elektrische Verbindung nach Anspruch 1, wobei das Kontaktband (1) mehrere dicht beabstandete und wechselseitig parallele Lamellenelemente (2) aufweist, von denen jedes einen zentralen Kopfabschnitt (4) zum elastischen Lagern in elastischem Kontakt mit dem zweiten Kontaktteil (11) und zwei Absatzabschnitte (5), durch welche der Kopfabschnitt (4) jeweils mit den zwei Grenzregionen (3) verknüpft ist und welche in elektrischem Kontakt mit dem Boden (13) der Nut (12) lagern, hat.
  3. Zweiteilige elektrische Verbindung nach Anspruch 2, wobei das Kontaktband (1) eine einheitliche Metallstreifenstruktur ist.
  4. Zweiteilige elektrische Verbindung nach einem der Ansprüche 1 bis 3, wobei die äußerste Wand (16) jedes Schlitzes (15) im Wesentlichen 60 Grad zu dem Boden (13) der Nut (12) geneigt ist.
  5. Zweiteilige elektrische Verbindung nach einem der Ansprüche 1 bis 4, wobei die äußerste Wand (16) jedes Schlitzes (15) eine einwärts vorstehende Lippe oder einen Rand (20) umfasst, und das Halten des Kontaktbands (1) in der Nut (12) teilweise durch einen elastischen Eingriff der sich auswärts erstreckenden Vorsprünge (6) jeder Grenzregion (3) unter der Lippe oder dem Rand (20) des jeweiligen Schlitzes (15) erfolgt.
  6. Zweiteilige elektrische Verbindung nach Anspruch 5, wobei jeder Vorsprung (6) eine nach oben gedrehte Fußextremität (21) zum Eingreifen unter der Lippe oder dem Rand (20) des jeweiligen Schlitzes (15) hat.
  7. Zweiteilige elektrische Verbindung nach einem der Ansprüche 1 bis 6, wobei die Wände (17) der Oberflächennut (12) angeschrägte Ränder haben.
  8. Zweiteilige elektrische Verbindung nach einem der Ansprüche 1 bis 7, wobei die ersten und zweiten Kontaktteile (1 0, 11) Kontaktplatten oder Kontaktblätter einer Busscliienenverbindung sind.
  9. Zweiteilige elektrische Verbindung nach einem der Ansprüche 1 bis 7, wobei die ersten und zweiten Kontaktteile (10, 11) eine Steckverbindung miteinander bilden.
  10. Verfahren zur Montage einer zweiteiligen elektrischen Verbindung, in der erste und zweite Kontaktteile (10, 11) der Verbindung über ein elastisches Zwischenkontaktband (1), das Vorsprünge (6) hat, die sich von jeder von zwei entgegengesetzten Grenzregionen (3) des Kontaktbands (1) auswärts erstrecken, elektrisch miteinander verbunden sind, wobei das Verfahren die Schritte des Anordnens des Kontaktbands (1) das längs mit einer Oberflächennut (12) des ersten Kontaktteils (10) ausgerichtet, aber darüber beabstandet ist, und des Drückens des Kontaktbands (1) nach unten in die Nut (12) für den Eintritt der Vorsprünge (6) jeder Grenzregion (3) in einen jeweiligen von zwei seitlich beabstandeten Schlitzen (15) in dem Boden (13) der Nut (12), welche längs der Nut (12) verlaufen, für das Halten des Kontaktbands (1) in der Nut (12) durch einen elastischen Eingriff der sich nach außen erstreckenden Vorsprünge (6) jeder Grenzregion (3) mit einer äußersten Wand (16) in der Nut. (12) und des Zusammenbringens der ersten und zweiten Kontaktteile (10, 11) über das elastische Einquetschen des Kontaktbands (1) zwischen ihnen in eine elektrische Verbindung aufweist, dadurch gekennzeichnet, dass die äußersten Wände, mit denen die Vorsprünge (6) elastisch eingreifen, jeweils die Außenwände (16) der zwei Schlitze (15) sind, und dass die äußerste Wand (16) jedes Schlitzes (15) zu dem Boden (13) der Nut (12) derart geneigt ist, dass der seitliche Abstand zwischen den äußersten Wänden (10) der zwei Schlitze (15) mit zunehmender Schlitztiefe zunimmt.
  11. Verfahren nach Anspruch 10, wobei das Kontaktband (1) mehrere dicht beabstandete und wechselseitig parallele Lamellenelemente (2) aufweist, von denen jedes einen zentralen Kopfabschnitt (4) zum elastischen Lagern in elastischem Kontakt mit dem zweiten Kontaktteil (11) und zwei Absatzabschnitte (5), durch welche der Kopfabschnitt (4) jeweils mit den zwei Grenzregionen (3) verknüpft ist und welche in elektrischem Kontakt mit dem Boden (13) der Nut (12) lagern, hat.
  12. Verfahren nach Anspruch 10 oder Anspruch 11, wobei die äußerste Wand (16) jedes Schlitzes (15) eine einwärts vorstehende Lippe oder einen Rand (20) umfasst, und das Halten des Kontaktbands (1) in der Nut (12) teilweise durch einen elastischen Eingriff der sich auswärts erstreckenden Vorsprünge (6) jeder Grenzregion (3) unter der Lippe oder dem Rand (20) des jeweiligen Schlitzes (15) erfolgt.
  13. Verfahren nach Anspruch 12, wobei jeder Vorsprung (6) beim Festhalten des Kontaktbands (1) in der Nut (12) eine nach oben gedrehte Fußextremität (21) zum Eingreifen unter der Lippe oder dem Rand (20) des jeweiligen Schlitzes (15) hat.
  14. Verfahren nach einem der Ansprüche 10 bis 13, wobei die Wände (17) der Oberflächennut (12) angeschrägte Ränder haben, um den Eintritt der Vorsprünge in die Nut (12) zu erleichtern.
  15. Verfahren nach einem der Ansprüche 10 bis 14, wobei die ersten und zweiten Kontaktteile (10, 11) Platten sind oder eine Steckverbindung miteinander bilden.
EP08762958.0A 2007-04-04 2008-04-04 Elektrische verbindungen Active EP2147481B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0706517A GB0706517D0 (en) 2007-04-04 2007-04-04 Electrical connections
PCT/IB2008/001649 WO2008122895A2 (en) 2007-04-04 2008-04-04 Electrical connections

Publications (2)

Publication Number Publication Date
EP2147481A2 EP2147481A2 (de) 2010-01-27
EP2147481B1 true EP2147481B1 (de) 2019-05-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08762958.0A Active EP2147481B1 (de) 2007-04-04 2008-04-04 Elektrische verbindungen

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EP (1) EP2147481B1 (de)
GB (2) GB0706517D0 (de)
WO (1) WO2008122895A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102244944A (zh) * 2011-04-06 2011-11-16 中山市格普斯纳米电热科技有限公司 微晶/陶瓷电热板的导线固定方法
US8764495B2 (en) 2012-07-31 2014-07-01 Rockwell Automation Technologies, Inc. Power circuit electrical connection system and method
CN103199368A (zh) * 2013-03-29 2013-07-10 苏州智绿环保科技有限公司 冠簧

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH595686A5 (de) * 1976-02-06 1978-02-28 Bbc Brown Boveri & Cie
DE59206463D1 (de) * 1991-06-27 1996-07-11 Sotax Ag Kontaktorgan und Verfahren zur Herstellung des Kontaktorgans
FR2810463B1 (fr) * 2000-06-14 2004-03-05 Alstom Connecteur electrique
FR2850493B1 (fr) * 2003-01-29 2005-10-21 Alstom Procede de fabrication de bandes de contacts pour connecteurs d'appareillages electriques, et bande de contacts pour de tels connecteurs

Also Published As

Publication number Publication date
GB2449153B (en) 2011-06-08
GB0706517D0 (en) 2007-05-09
EP2147481A2 (de) 2010-01-27
WO2008122895A3 (en) 2009-04-02
WO2008122895A2 (en) 2008-10-16
GB0806204D0 (en) 2008-05-14
GB2449153A (en) 2008-11-12

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