EP2812949B1 - Connecteur électrique enfichable pour établir une liaison électrique par soudage par ultrasons - Google Patents

Connecteur électrique enfichable pour établir une liaison électrique par soudage par ultrasons Download PDF

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Publication number
EP2812949B1
EP2812949B1 EP13718104.6A EP13718104A EP2812949B1 EP 2812949 B1 EP2812949 B1 EP 2812949B1 EP 13718104 A EP13718104 A EP 13718104A EP 2812949 B1 EP2812949 B1 EP 2812949B1
Authority
EP
European Patent Office
Prior art keywords
leg
plug connector
electrical plug
connection portion
electrical
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
EP13718104.6A
Other languages
German (de)
English (en)
Other versions
EP2812949A1 (fr
Inventor
Till Beck
Peter BEDNARCZYK
Stefan Schulz
Wolfgang Langhoff
Danica Holley
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.)
Amphenol Tuchel Electronics GmbH
Original Assignee
Amphenol Tuchel Electronics GmbH
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
Priority claimed from DE201210002910 external-priority patent/DE102012002910B4/de
Priority claimed from DE202012001446U external-priority patent/DE202012001446U1/de
Application filed by Amphenol Tuchel Electronics GmbH filed Critical Amphenol Tuchel Electronics GmbH
Publication of EP2812949A1 publication Critical patent/EP2812949A1/fr
Application granted granted Critical
Publication of EP2812949B1 publication Critical patent/EP2812949B1/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
    • 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
    • H01R4/02—Soldered or welded connections
    • H01R4/023—Soldered or welded connections between cables or wires and terminals
    • 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
    • H01R4/02—Soldered or welded connections
    • H01R4/029—Welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
    • H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
    • 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
    • H01R13/04—Pins or blades for co-operation with sockets

Definitions

  • the invention relates to an electrical connector according to the preamble of claim 1.
  • the invention particularly relates to an electrical connector designed as a contact pin for electrical connection to a cable by means of ultrasonic welding.
  • Electrical connectors are intended, via their connector pairs, thus on their female parts and connector parts z. B. between an electrical line and another electrical line or an electrical unit to produce a re-releasable electrical connection.
  • solder joints In addition to screw crimps, solder joints, press-fit or piercing and other connection techniques are known, such as form-fitting connections, in particular welded joints.
  • the document DE 198 00 451 A1 discloses an electrical connector according to the preamble of claim 1.
  • Object of the present invention is to provide an electrical connector or a contact pin for electrical connection by means of an ultrasonic welding process, which overcomes the aforementioned problems and in particular with respect to the space has an optimized geometry.
  • the object is to provide such a contact pin, which is universal and inexpensive and can be used in many applications.
  • a plug connector in particular in the form of a solid contact pin has the following namely a contact portion, which is preferably connected via a transition portion with a connection portion, wherein the connection portion is formed for electrical connection to an electrical line by means of ultrasonic welding and therefore in this region, preferably in the transition region between the connection section and the adjoining transition or contact section, a breakwater unit or a geometric breakwater element is arranged for refracting the ultrasonic waves.
  • breakwater element The technical operation of the breakwater element can be seen in the fact that cracks and damage occur in the region of the connection section, in particular at its transition region, to the contact section or the intermediate transition section when energy is introduced by ultrasonic welding, in particular by the occurring waves.
  • Such transition sections are zones that are particularly stressed during ultrasonic welding.
  • connection section To prevent damage, it is therefore necessary to provide a suitably designed breakwater element, preferably a correspondingly formed bead, on the connection section.
  • an electrical connector which has a contact section, a transition section adjoining the contact section and a connection section adjoining the transition section, wherein the connection section is for electrical connection to an electrical line is formed by ultrasonic welding and wherein the connecting portion is formed via at least one geometric breakwater element, preferably a protruding bead for breaking waves during ultrasonic welding.
  • connection section has a bearing surface, preferably a flat contact surface for a line to be connected or the contact end of a line to be connected.
  • the connecting portion is formed as an L-shaped connecting portion and that of a first leg and a substantially orthogonally oriented second leg, wherein each leg is part of the connecting portion.
  • the two legs are thus oriented substantially perpendicular to each other in connection and form the L-shaped terminal section shape.
  • Such a geometry is therefore space-optimized and simultaneously provides a stop for the cable, which is provided by the first leg and a support surface for the cable, which is provided by the second leg.
  • the first leg is arranged at the transition section.
  • the second leg is advantageously connected in an orientation orthogonal to the first leg with this leg to form an L-shaped connection section, which is integrally formed either in its overall orientation in the insertion direction with the transition section or perpendicular to the insertion direction at the transition section.
  • a preferred embodiment of the invention in the form of an elongated connector in which the first leg is arranged at the transition portion in the insertion direction so that the second leg substantially in the extension direction and thus in the insertion direction the contact pin is arranged.
  • the support surface of the second leg has a transition surface which is connected to the leg inner surface formed by the first leg and extends directly into it.
  • half a "half pipe” is approximately formed in which the bearing surface of the second leg forms the bottom and the curved transition surface with the inner side surface of the leg represents the rounding of the "half pipe" laterally.
  • the inner surfaces i. H. the surfaces facing the other leg connected to each other via a curved transition surface.
  • the curved transition surface substantially corresponds approximately to a segment of the inner circumference of a hollow cylinder of about 70 ° to 90 ° radians.
  • the radius of curvature of the curved transition surface is advantageously constant over the entire transition surface, wherein the geometric breakwater element protrudes from the transition surface.
  • the geometric element is formed as a bulge which also protrudes outwardly from the transition surface and which is also curved along the curvature.
  • the bead extends in its course over the entire curved surface over the entire height of the first leg and extends with its other end into the flanks or in the surface of the second leg inside.
  • the bead is located approximately in the middle of the transition surface with respect to the side edges of the connection section formed by the L.
  • the projection of the bead is oriented parallel to the insertion direction of the contact pin.
  • the forming in the contact pin longitudinal ultrasonic waves are thus broken by the In longltudinaler orientation formed breakwater element and inhibited in their effect, so that the contact pin can be connected without damage by means of ultrasonic welding with a line.
  • connection portion and the geometric breakwater element that is, preferably the bead, materially formed of a material, preferably made of pure copper or a copper alloy.
  • the use of copper or a copper alloy with a high copper content is preferably used because of the particularly good electrical conductivity.
  • the decisive factor for the technical effect of the contact according to the invention is the suitable design of a breakwater element between or at the connection section for the transition of the transition or contact section.
  • a further preferred embodiment is an electrical connector according to one or more of the preceding features, wherein the contact pin consists of a metallic material and wherein the contact pin is a galvanic Surface coating and the transition section has a support surface which has no surface coating and no other applied coating.
  • a further preferred embodiment is an electrical connector according to one or more of the preceding features, wherein that the connecting portion has a preferably flat bearing surface for an electrical line to be connected.
  • a further preferred embodiment is an electrical connector according to one or more of the preceding features wherein the metallic material of the contact pin is made of copper or a copper alloy with a high copper content and / or the galvanic coating of the contact pin made of silver or gold or tin.
  • Fig. 1 is the electrical connector 1 in the form of a contact pin 2 is formed.
  • the contact pin 2 is subdivided into the sections A, B and C.
  • the section C represents the contact section 3 of the contact pin 2.
  • the contact section 3 is used for contacting with a corresponding mating connector.
  • a transition section 4 is divided. Between the transition section 4 and the contact section 3, a latching contour 8 is arranged for latching with a latching element on the mating connector.
  • the connection section 5 At the transition section 4 closes in part A of the contact pin 2, the connection section 5 at.
  • connection section 5 of the contact pin 2 serves for the electrical and mechanical connection to a cable or a line 100 to be connected.
  • the connection section 5 is formed as an L-shaped connection section, part of the L-form being part of the transition section.
  • the L-shape of the connection section 5 results from a first leg 50 and a second leg 51 arranged orthogonally to it.
  • the leg 50 is connected directly to the transition section 4 with this.
  • the leg 50 On the opposite side of the connection, the leg 50 has a leg surface 40, which is formed substantially horizontally and curved in its further course with a radius of curvature R and opens into a bearing surface 10 of the second leg 51 and merges into it.
  • the second leg 51 is formed as a substantially flat leg, which is arranged in the axial direction of the contact pin 2 and that at its end. The bottom and thus the support surface 10 opposite side of the second leg 51 is also advantageously flat to achieve a minimum space.
  • the contact portion 3 and the transition portion 4 are formed with a first diameter D1, substantially as cylindrical portions.
  • the connection section 5 protrudes with a projection 11 over the outer contour and thus over the enveloping shape of the cylindrical outer shell of the contact pin 2 formed by the contact section 3 and the transition section 4.
  • the projection 11 of the connector holds a mechanical abutment against, for example, a housing to ensure that the contact pin 2 can be brought with its contact section 3 in the correct insertion position.
  • the course of the support surface 10 is formed by the second leg 51 to the leg surface 40 of the first leg 50 as a curved surface.
  • the curvature follows substantially in the form of half of a "half pipe". Ie. the bottom surface is formed by the support surface 10, while the half-pipe side surfaces are formed by the curved leg surface 40.
  • the breakwater 41 is formed in the present embodiment as a bead and that a curved bead, whose projection, as in Fig. 2 it can be seen extending in the axial direction S or plug-in direction S of the contact pin 2.
  • the bead 41 extends from the support surface 10 along the axial direction over the curvature of the curved leg surface 40 up to the end 53 and approximately to the upper end of the projection 11th
  • the hump formed in this way serves as a breakwater 41 in the connection section 5, in order in particular to break longitudinal waves.
  • a stripped end of a cable 100 is to be applied to the support surface 10 and by means of ultrasonic waves, ie by means of ultrasonic welding, an ultrasonic welding connection between the cable 100 and the contact pin 2 and its connecting portion 5 are formed.
  • the occurring longitudinal waves and ultrasonic waves are refracted by the breakwater 41 at the "critical" transition to the transition section 5, so that the energy of the ultrasonic waves, in particular in the region of the transition from the connection section 5 to the transition section 4, leads to any dysfunctional disturbances or material damage.
  • Fig. 2 it can be seen that the projection or the bead 41 are arranged substantially in the middle between the side edges 42 of the legs 50, 51.
  • two parallel breakwaters 41, d. H. two humps or two beads 41 may be arranged side by side in the transition region, the geometric formation of which causes the refraction of ultrasonic waves.
  • connection portion 5 has at its bearing surface 10 no surface coating, so that a contact takes place directly with the material of the contact pin 2.
  • the material of the contact pin 2 is formed as a copper material or a copper alloy with a high copper content.
  • the contact section 3 can be advantageously provided with a surface coating, so that the electrical connector according to the invention can be provided inexpensively over partial coatings and is suitable in a favorable Welse for ultrasonic welding.
  • the length of the second leg 51 With regard to the heat input, it has proven to be advantageous to provide the length of the second leg 51 with its length of about 25% to 40% of the total length of the contact pin 2.
  • the first leg 50 is located approximately in one third of the total length of the contact pin 2 spaced from the end of the connection portion 5. Two thirds of the length of the contact pin 2 are formed by the transition section 4 and the contact portion. 3
  • Fig. 3 is a perspective view of the contact pin 2 similar to the embodiment of Fig. 1 and Fig. 2 shown

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Claims (16)

  1. Connecteur électrique enfichable (1) de la conformation d'un contact mâle (2) massif, qui comporte ce qui suit :
    A) un tronçon de contact (3),
    B) un tronçon de transition (4) se raccordant sur le tronçon de contact (3) et
    C) un tronçon de raccordement (5) se raccordant sur le tronçon de transition (4), pour la liaison électrique par soudage aux ultrasons avec un conduit (100) électrique, le tronçon de raccordement (5) disposant d'au moins un élément brise-ondes (41) géométrique pour briser les ondes lors du soudage aux ultrasons, caractérisé en ce que l'élément brise-ondes (41) géométrique est conçu en tant qu'un bourrelet curviligne saillant vers l'extérieur à partir de la surface de transition (52).
  2. Connecteur électrique enfichable (1) selon la revendication 1, caractérisé en ce que le tronçon de raccordement (5) dispose d'une surface d'appui (10) de préférence plane pour un conduit électrique (100) à raccorder.
  3. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le tronçon de raccordement (5) est constitué d'une première branche (50) et d'une deuxième branche (51).
  4. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la première branche (50) est placée sur le tronçon de transition (4).
  5. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le tronçon de raccordement (5) est conçu en tant que tronçon de raccordement en forme de L, à savoir par la première branche (50) et par la deuxième branche (51) orientée de manière sensiblement orthogonale par rapport à celle-ci.
  6. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la surface d'appui (10) de la deuxième branche (51) est reliée via une surface de transition (52) curviligne avec une surface interne (40) de branche formée par la première branche (50), respectivement forme avec celle-ci une surface commune.
  7. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que l'élément brise-ondes (41) géométrique est placé dans la région de la surface de transition (52) curviligne, et saillit hors de celle-ci.
  8. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que par sa position et donc dans son trajet, le bourrelet s'étend sur toute la hauteur de la première branche (50) et par l'une (53) de ses extrémités, arrive jusqu'à la deuxième branche (51).
  9. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le tronçon de raccordement (5) et l'élément brise-ondes (41) géométrique sont conçus par liaison par matière en une matière cuivrée pure.
  10. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le contact mâle (2) dispose d'un revêtement de surface partiel.
  11. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que dans la région de la surface d'appui (10) n'est appliqué aucun revêtement de surface du tronçon de raccordement (5) et dans cette région, la matière de contact pour le soudage aux ultrasons est constituée de la matière de l'élément de contact.
  12. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le contact mâle (2) est constitué d'une matière métallique et le contact mâle (2) comportant un revêtement de surface galvanique et le tronçon de transition (4) disposant d'une surface d'appui (10) qui ne comporte aucun revêtement de surface ni aucun revêtement appliqué d'une autre manière.
  13. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le tronçon de raccordement (5) dispose d'un surface d'appui (10) de préférence plane, pour un conduit électrique (100) à raccorder.
  14. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le tronçon de raccordement (5) est conçu en tant que tronçon de raccordement en forme de L, à savoir par la première branche (50) et par la deuxième branche (51) orientée de manière sensiblement orthogonale par rapport à celle-ci.
  15. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que la matière métallique du contact mâle (1) est constituée de cuivre ou d'un alliage de cuivre à fraction élevée en cuivre.
  16. Connecteur électrique enfichable (1) selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que le revêtement galvanique du contact mâle (3) est constitué d'argent ou d'or ou d'étain.
EP13718104.6A 2012-02-11 2013-02-08 Connecteur électrique enfichable pour établir une liaison électrique par soudage par ultrasons Active EP2812949B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE201210002910 DE102012002910B4 (de) 2012-02-11 2012-02-11 Elektrischer Steckverbinder zur elektrischen Verbindung mittels Ultraschallschweißen
DE202012001446U DE202012001446U1 (de) 2012-02-11 2012-02-11 Elektrischer Kontaktpin für Ultraschallschweißen
PCT/EP2013/000374 WO2013117339A1 (fr) 2012-02-11 2013-02-08 Connecteur électrique enfichable pour établir une liaison électrique par soudage par ultrasons

Publications (2)

Publication Number Publication Date
EP2812949A1 EP2812949A1 (fr) 2014-12-17
EP2812949B1 true EP2812949B1 (fr) 2016-04-20

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EP13718104.6A Active EP2812949B1 (fr) 2012-02-11 2013-02-08 Connecteur électrique enfichable pour établir une liaison électrique par soudage par ultrasons

Country Status (6)

Country Link
US (1) US9281573B2 (fr)
EP (1) EP2812949B1 (fr)
JP (1) JP6097769B2 (fr)
CN (1) CN104115333B (fr)
ES (1) ES2575401T3 (fr)
WO (1) WO2013117339A1 (fr)

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DE102022202850A1 (de) * 2022-03-23 2023-09-28 Yamaichi Electronics Deutschland Gmbh Kontaktelement, Kontaktelementsystem und Steckverbinder

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Also Published As

Publication number Publication date
JP2015511375A (ja) 2015-04-16
EP2812949A1 (fr) 2014-12-17
WO2013117339A1 (fr) 2013-08-15
CN104115333A (zh) 2014-10-22
US9281573B2 (en) 2016-03-08
US20140378010A1 (en) 2014-12-25
JP6097769B2 (ja) 2017-03-15
CN104115333B (zh) 2016-11-09
ES2575401T3 (es) 2016-06-28

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