EP2195886B1 - Kontaktclip - Google Patents

Kontaktclip Download PDF

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Publication number
EP2195886B1
EP2195886B1 EP08783465A EP08783465A EP2195886B1 EP 2195886 B1 EP2195886 B1 EP 2195886B1 EP 08783465 A EP08783465 A EP 08783465A EP 08783465 A EP08783465 A EP 08783465A EP 2195886 B1 EP2195886 B1 EP 2195886B1
Authority
EP
European Patent Office
Prior art keywords
contact
clip
elastic strips
male
clip according
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
EP08783465A
Other languages
English (en)
French (fr)
Other versions
EP2195886A1 (de
Inventor
Georges HÄNGÄRTNER
Pierre Lehmann
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.)
Preci Dip SA
Original Assignee
Preci Dip SA
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 Preci Dip SA filed Critical Preci Dip SA
Publication of EP2195886A1 publication Critical patent/EP2195886A1/de
Application granted granted Critical
Publication of EP2195886B1 publication Critical patent/EP2195886B1/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
    • 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
    • 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
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section

Definitions

  • the present invention relates to a contact clip intended to be inserted inside a female-type contact piece in order to complete the latter, said contact clip making it possible to ensure electrical contact between said female contact piece and a corresponding contact piece of the male type.
  • the invention also relates to a contact piece equipped with such a contact clip as well as a connector provided with at least one such contact piece.
  • EP-1107378 discloses a female type contact piece equipped with a contact clip, intended to be installed on a multi-contact connector.
  • the disadvantage of the contact clips as described in this document is that the contact surface that they have with the male contact piece when the latter is introduced, is relatively limited, which implies a relatively high contact resistance, limiting therefore the value of the current that can be passed through such a set of contacts to prevent a prohibitive heating of the set of contacts.
  • a contact clip respectively a contact piece having the desired characteristics. Since such contact pieces are generally arranged in multi-contact connectors or on printed circuit boards, their dimensions must be very small since, for example on a connector, the distance between the axes of two successive contact pieces can be less than 1 / 10th of an inch (2.54 mm). Moreover, the male and female contact parts can often be connected or disconnected, which implies that the elasticity of the contact clip remains sufficient to continue to ensure good contact after many connections and disconnections and ensure the constancy of forces insertion and extraction of the male contact piece in the corresponding female part. On the other hand, preferably the contact clip must have no edge or roughness likely to injure the outer surface of contact of the male part during its introduction or its extraction.
  • a first object of the invention is therefore to provide an improved contact clip with respect to those known from the prior art.
  • Another object of the invention is to provide a contact clip adapted to allow the transit of a current higher than the known contact clips, this without excessive heating of the contact parts.
  • Another object of the invention is to provide a contact clip whose mechanical properties do not deteriorate after many uses and over time.
  • Yet another object of the invention is to provide a female-type contact piece equipped with such a contact clip, adapted to cooperate with a male-type contact piece, without injuring the contact surface thereof.
  • Another object of the invention is to provide a connector provided with at least one female-type contact piece comprising a contact clip as defined above.
  • the contact clip 1, as shown in FIG. figure 1 is of substantially tubular shape, comprising, in the direction of the length and from left to right on the embodiment of the figure 1 , a fixing portion 10, a contact portion 11 and an end portion 12.
  • the fixing portion 10 consists of a cylindrical annular portion intended to fix the clip 1 in a corresponding portion of a contact piece, as will be seen below.
  • the significant dimensional dimension of this fastening portion 10 is therefore its outside diameter.
  • a frustoconical portion 13 allows to connect the diameters.
  • the end portion 12 arranged, in the embodiment shown, at the opposite end of the clip, consists of a cylindrical tubular portion intended to be inserted into a corresponding guide portion of a contact piece, as we will see below.
  • the important dimensional dimension is its outside diameter.
  • each cutout 14, respectively each elastic strip 15 is shaped in the longitudinal direction of the clip 1.
  • the two elastic strips 15 have been deformed being slightly folded in the direction of the longitudinal central axis 100 of the clip 1.
  • a male portion 2 of a contact piece visible in section on the figure 3 but not shown in the other figures, was introduced in the clip 1, it is pressed by the two resilient lamellae 15 each applying a radial force to the male portion 2, pressing it against the inner cylindrical surface portion 110 opposite the resilient lamellae 15, of the contact portion 11.
  • the longitudinal axis 20 of the male portion 2 is offset relative to the longitudinal axis 100 of the clip 1, thereby increasing the surfaces of the male portion 2 and the clip 1 in electrical contact, these surfaces comprising essentially the inner cylindrical surface portion 110 mentioned above as well as the two inner surfaces 150 of the elastic lamellae 15.
  • the contact surface also depends on the length of the contact portion 11, parameter which is not generally considered in the clips of this type according to the prior art. These contact surfaces are therefore much larger than the corresponding surfaces of the contact clips of the prior art.
  • each elastic strip 15 is slightly bent outwardly of the clip 1 so as not to injure the external contact surface of the male portion 2 when it is inserted into the clip 1.
  • each elastic strip 15 is directed towards the front of the clip 1, in the direction of the fixing portion 1, whereas in the embodiment of the clip 1 shown in FIG. figure 2 , the free end 151 of each elastic strip 15 is directed towards the bottom of the clip 1, either towards the end portion 12.
  • the slats 15 are of different lengths, which allows on the one hand to reduce the insertion force of the male part 2 and on the other hand to better distribute the bearing force of the male part 2 on the portion inner cylindrical surface 110 for contacting the clip 1.
  • the material used for such contact clips is preferably an alloy of copper and beryllium known for its good electrical and mechanical qualities.
  • the manufacture of such clips is preferably by cutting stamping and rolling, from strips of the material constituting the clips.
  • the figure 4 shows a section of a connector portion 4 comprising a female-type contact piece 3, provided with a contact clip 1, ready to receive a portion of a male contact piece 2.
  • the portion of the contact piece 3 intended to receive the clip 1 is substantially cylindrical in shape and comprises an axial blind bore comprising, in the embodiment shown, a first attachment surface 30, intended to receive the fixing portion 10 clip, a central seat 31 for receiving the contact portion 11 of the clip and the end portion 12 of the clip.
  • the bearing surfaces 30 and 31 have different diameters.
  • the introduction of the clip 1 in the axial housing of the contact piece 3 is made by first introducing the end portion 12, then the contact portion 11 through the opening of the housing, these two portions easily passing through the attachment span 30 of larger diameter.
  • the outside diameter of the fixing portion of the clip corresponds to the inside diameter of the attachment surface 30 of the contact piece 3, in such a way that the clip 1 remains fixed in the part 3 after insertion and driving, crimping or fixing by any known means, the fastening portion 10 in the attachment span 30.
  • the electrical contact respectively the passage of the electric current between the contact clip 1 and the female-type contact piece 3 is essentially by the uncut portion of the contact portion 11 corresponding to the surface portion 110 seen previously and the end portion 12 with the central bearing 31.
  • the rest of the contact piece 3, just sketched on the figure 4 can be of any known type for this kind of contact parts, and may comprise for example a portion in which a wire can be crimped, screwed or welded, or a fixing portion on a connector or a printed circuit or a second portion in the form of a female contact, to form a transition contact piece, etc.
  • the figure 4 shows the portion of the contact piece 3 described above mounted on an insulating plate 40 of a connector 4 of which only a portion is shown here.
  • the contact piece 3 Since by the construction described above, the mechanical stresses, in particular those of elasticity, are transferred to the contact clip 1, the contact piece 3 will preferably be made of a material of reduced cost, for example made of brass, this being an additional advantage of this type of construction. If necessary, only the contact clip 1 will undergo a surface treatment improving its electrical contact qualities.
  • each clip 1 could comprise a number of elastic strips 15 different from two, it being understood that the positioning of these strips 15 on the periphery of the contact portion 11 is important. since these strips must each exert a radial force such that the component of the sum of these radial forces applied to the male part 2 shifts its longitudinal axis 20 and presses said male part 2 against a surface portion internal cylindrical 110 without elastic lamella 15. These resilient lamellae 15 will therefore be arranged unevenly on the periphery of the contact portion 11. It will be chosen to have at least two elastic lamellae 15 in order to have a stable positioning of the male part 2 inside the clip 1.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)

Claims (11)

  1. Kontaktclip (1), der dazu bestimmt ist, in ein Kontaktteil weiblichen Typs (3) inkorporiert zu sein, um einen elektrischen Kontakt zwischen dem Kontaktteil weiblichen Typs und einem Kontaktteil männlichen Typs (2) zylindrischer Form, das dort eingeführt ist, sicherzustellen, der vor allem einen Kontaktabschnitt (11) und einen Befestigungsabschnitt (10) umfasst, die längs nacheinander angeordnet sind, wobei mindestens zwei längliche elastische Lamellen (15) in zwei länglichen Ausschnitten (14) des Kontaktabschnitts (11) ausgebildet sind, dadurch gekennzeichnet, dass die elastischen Lamellen (15) imstande sind, das Kontaktteil männlichen Typs (2) gegen einen inneren Flächenabschnitt (110) des Kontaktabschnitts (11) zu pressen, der den elastischen Lamellen gegenüberliegt und dass die Lamellen verschieden lang sind.
  2. Kontaktclip nach Anspruch 1, dadurch gekennzeichnet, dass die elastischen Lamellen (15) ungleichmäßig auf dem Umfang des Clips angeordnet sind, um einen inneren Flächenabschnitt (110) ohne elastische Lamelle zu lassen, wobei der innere Flächenabschnitt (110) die elektrische Hauptkontaktfläche zwischen dem männlichen Abschnitt (2) und dem Clip (1) bildet.
  3. Kontaktclip nach Anspruch 2, dadurch gekennzeichnet, dass die elastischen Lamellen (15) den männlichen Abschnitt (2) durch Verlagern der Längsachse (20) des männlichen Abschnitts (2) der Längsachse (100) des Clips (1) gegen den inneren Flächenabschnitt (110) pressen.
  4. Kontaktclip nach einem der vorangehenden Ansprüche, dadurch 'gekennzeichnet, dass der Befestigungsabschnitt von einem ringförmigen Abschnitt (10) gebildet wird, der zur Befestigung in einem zylindrischen Bereich (30) einer hohlen axialen Aufnahme des Kontaktteils (3) vorgesehen ist.
  5. Kontaktclip nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass er ferner einen Endabschnitt (12) umfasst, der auf der anderen Seite des Kontaktabschnitts (11) als der Befestigungsabschnitt angeordnet ist, der von einem zylindrischen Abschnitt gebildet wird, der imstande ist, in einen Führungsbereich (31) der hohlen axialen Aufnahme des Kontaktteils (3) eingeführt zu sein.
  6. Kontaktclip nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die elastischen Lamellen (15) zu dem Abschnitt ausgerichtet sind, der dem Befestigungsabschnitt (10) gegenüberliegt.
  7. Kontaktclip nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die elastischen Lamellen (15) zum Befestigungsabschnitt (10) ausgerichtet sind.
  8. Kontaktclip nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Enden (151) der elastischen Lamellen (15) abgerundet und nach außen gebogen sind.
  9. Kontaktclip nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass er aus einer Legierung aus Kupfer und Beryllium hergestellt ist.
  10. Kontaktteil weiblichen Typs (3), dadurch gekennzeichnet, dass es eine axiale Aufnahme (30, 31) umfasst, die einen Kontaktclip (1) nach einem der vorangehenden Ansprüche enthält.
  11. Verbinder, der mindestens ein Kontaktteil weiblichen Typs nach Anspruch 10 umfasst.
EP08783465A 2007-09-05 2008-09-03 Kontaktclip Active EP2195886B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01384/07A CH704749B1 (fr) 2007-09-05 2007-09-05 Clip de contact.
PCT/CH2008/000365 WO2009030057A1 (fr) 2007-09-05 2008-09-03 Clip de contact

Publications (2)

Publication Number Publication Date
EP2195886A1 EP2195886A1 (de) 2010-06-16
EP2195886B1 true EP2195886B1 (de) 2013-02-13

Family

ID=40260785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08783465A Active EP2195886B1 (de) 2007-09-05 2008-09-03 Kontaktclip

Country Status (6)

Country Link
US (1) US8303352B2 (de)
EP (1) EP2195886B1 (de)
JP (1) JP5148706B2 (de)
CN (1) CN101821907B (de)
CH (1) CH704749B1 (de)
WO (1) WO2009030057A1 (de)

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Also Published As

Publication number Publication date
JP5148706B2 (ja) 2013-02-20
CH704749B1 (fr) 2012-10-15
CN101821907B (zh) 2013-09-11
EP2195886A1 (de) 2010-06-16
WO2009030057A1 (fr) 2009-03-12
US8303352B2 (en) 2012-11-06
JP2010538430A (ja) 2010-12-09
US20110028039A1 (en) 2011-02-03
CN101821907A (zh) 2010-09-01

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