WO2019082816A1 - Borne femelle - Google Patents

Borne femelle

Info

Publication number
WO2019082816A1
WO2019082816A1 PCT/JP2018/039038 JP2018039038W WO2019082816A1 WO 2019082816 A1 WO2019082816 A1 WO 2019082816A1 JP 2018039038 W JP2018039038 W JP 2018039038W WO 2019082816 A1 WO2019082816 A1 WO 2019082816A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
elastic contact
contact pieces
elastic
terminal
Prior art date
Application number
PCT/JP2018/039038
Other languages
English (en)
Japanese (ja)
Inventor
基泰 安藤
Original Assignee
住友電装株式会社
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 住友電装株式会社 filed Critical 住友電装株式会社
Publication of WO2019082816A1 publication Critical patent/WO2019082816A1/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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • 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
    • H01R13/18—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with the spring member surrounding the socket

Definitions

  • the technology disclosed by the present specification relates to a female terminal.
  • the female terminal As an example of the conventional female terminal, the female terminal described in Japanese Patent Application Laid-Open No. 207-142986 (Patent Document 1 below) is known.
  • the female terminal includes a terminal body and a separate cover attached to the outer peripheral surface of the terminal body.
  • the terminal body is formed by pressing a plate made of copper alloy or the like, and includes a wire connection portion connected to a wire and a terminal connection portion connected to a male terminal.
  • the terminal body is generally plated.
  • the core wire of the wire is connected to the wire connection portion.
  • the cover is formed by pressing a plate made of a stainless steel plate or the like, and is mounted on the outer peripheral surface of the front end portion of the terminal connection portion.
  • Patent Document 1 Japanese Patent Application Publication No. 207-142986
  • the terminal disclosed in the specification includes a cylindrical base extending in the front-rear direction, a plurality of elastic contact pieces projecting forward from the front end of the base and provided so as to be elastically displaceable in the radial direction of the base; A spring capable of coming into contact with the plurality of elastic contact pieces from a direction in which the elastic displacement of the plurality of elastic contact pieces is prevented and capable of being elastically displaced in the direction of elastic displacement of the elastic contact pieces;
  • the elastic contact piece includes a region where plating is applied and a region where the base of the elastic contact piece is exposed, the elastic contact piece, the spring, and The position of the contact portion at which the contact is in the area where the base is exposed.
  • the entire female terminal is ultrasonically vibrated, and conventionally, the spring and the plating applied to the elastic contact piece are adhered by ultrasonic vibration.
  • the position of the contact portion where the elastic contact piece and the spring contact is in the area where the base of the elastic contact piece is exposed (in the area not plated). Therefore, the plating and the spring can be prevented from adhering due to ultrasonic vibration.
  • the spring is mounted so as to surround the outer peripheral surface of the plurality of elastic contact pieces, and the outer peripheral surface of the spring is provided with a plurality of pressing portions projecting inward in the radial direction, and the pressing portions are
  • the contact portion on the spring side may be configured.
  • the spring may be made of stainless steel. As a result, it is not necessary to plate the spring for rust prevention. Therefore, using stainless steel (SUS) as the material of the spring is suitable for the technology disclosed herein.
  • SUS stainless steel
  • the female terminal 10 is formed by processing a metal plate material made of copper alloy with a press or the like, and as shown in FIGS. 1 and 7, the terminal body 20 and the outer peripheral surface of the terminal body 20 are separately attached.
  • a body spring 40 is provided.
  • the fitting direction of the female terminal 10 will be described as the front.
  • the terminal body 20 has a wire connection portion 23 connected to the wire 50, a terminal connection portion 21 connected to a male terminal, and the terminal connection portion 21 and the wire connection portion 23 in the front-rear direction. It comprises and comprises the connection part 22 to connect.
  • the wire connection portion 23 has a plate-like connection surface 23A, and the core 51 of the wire 50 is connected to the connection surface 23A by ultrasonic connection. Thereby, the electric wire 50 and the female terminal 10 are electrically connected.
  • the terminal connection portion 21 has a generally cylindrical shape as a whole as shown in FIGS. 1 and 7, and is provided on a base portion 24 and a base portion 24 connected to the front of the wire connection portion 23 via a connecting portion 22.
  • a plurality of (three in the present embodiment) elastic contact pieces 25 are provided.
  • the base portion 24 is formed in a slightly long cylindrical shape in the front-rear direction in which the side end edges 24A of the metal plate members are butted by bending so as to round the metal plate members.
  • Each elastic contact piece 25 is formed in a cantilever shape slightly inclined toward the axial center of the terminal connection portion 21 toward the front which is the fitting direction with the male terminal from the front end edge of the base portion 24, It can be elastically displaced in the radial direction about a base end portion which is a root portion of the contact piece 25 as a supporting point.
  • each elastic contact piece 25 is formed in an arc shape in a front view centering on the axial center of the terminal connection portion 21, and the plurality of elastic contact pieces 25 in the terminal connection portion 21 are A pair of adjacent contact pieces 26 which are elastic contact pieces 25 disposed on both sides of the side edge 24A of the base 24; and an upper part where the side edge 24A of the base 24 is arranged bordering on the axial center of the terminal connection portion 21; Are constituted by a total of three elastic contact pieces 25 with non-adjacent contact pieces 27 which are elastic contact pieces 25 arranged at the lower part on the opposite side.
  • the terminal connection portion 21 on the front side of the base portion 24 is formed in a substantially cylindrical shape which is slightly tapered toward the front. Then, male terminals can be fitted from the front between the pair of adjacent contact pieces 26 and the non-adjacent contact pieces 27.
  • the inner diameter dimension of the front end opening constituted by the three elastic contact pieces 25 of the pair of adjacent contact pieces 26 and the non-adjacent contact piece 27 is that the pair of adjacent contact pieces 26 and the non-adjacent contact pieces 27 are elastically displaced In the natural state, the diameter is set to be slightly smaller than the outer diameter of the male terminal. Then, when the male terminal is inserted between the pair of adjacent contact pieces 26 and the non-adjacent contact pieces 27 and reaches a normal fitting state, the pair of adjacent contact pieces 26 and the non-adjacent contact pieces 27 are male terminals As a result, the terminal connection portion 21 elastically contacts the male terminal by being elastically displaced radially outward by being pressed. Thereby, the male terminal and the female terminal 10 are electrically connected.
  • the terminal body 20 is plated with tin-nickel alloy.
  • the area S of the front outer peripheral surface of the elastic contact piece 25 (for example, the hatched portion in FIG. 1) is previously subjected to the masking process before the plating process, and is not subjected to the plating process. Accordingly, in the region S, the copper alloy which is the base of the elastic contact piece 25 is exposed.
  • the spring 40 is formed by processing a plate made of a stainless steel (SUS) plate which is a metal plate having a rigidity higher than that of the terminal main body 20 by a press or the like. Since the material of the spring 40 is SUS, the spring 40 need not be plated for rust prevention. As shown in FIG. 3, the spring 40 is provided on the outer peripheral surface of the biasing portion 41 mounted on the outer peripheral surface of the front end portion of the terminal connection portion 21 and the outer peripheral surface of the base end portion 27A of the nonadjacent contact piece 27 of the terminal connection portion 21. It comprises and comprises a fixed piece 42 to be mounted, and a plurality of connecting parts 43 connecting the biasing part 41 and the fixed piece 42.
  • SUS stainless steel
  • the biasing portion 41 has a substantially cylindrical shape with a C-shape in a front view opening upward, and is elastically displaceable so as to expand in diameter. Further, the biasing portion 41 is configured to be tapered along the tip outer peripheral surface of the terminal connection portion 21 so that the inner diameter dimension is slightly larger than the outer diameter dimension of the tip outer peripheral surface of the terminal connection portion 21. A plurality of pressing portions 44 contacting the outer peripheral surface of the terminal connection portion 21 are provided on the inner surface of the biasing portion 41.
  • the pressing portion 44 is provided so as to protrude at three locations on both sides of the upper end opening and the lower end portion of the upper end opening of the biasing portion 41.
  • the clearance between the tip outer peripheral surface and the inner peripheral surface of the biasing portion 41 is set to be substantially the same.
  • the pressing portion 44 is provided in the biasing portion 41 so as to surround the terminal connection portion 21 from three sides, and the pair of adjacent contact pieces 26 and the non-adjacent contact pieces 27 of the terminal connection portion 21 are radially outward.
  • the three pressing portions 44 urge the pair of adjacent contact pieces 26 and the non-adjacent contact pieces 27 from the radially outer side to the inner side in the direction that prevents the elastic displacement. .
  • the contact load to the male terminal of each elastic contact piece 25 is secured, and the connection reliability between the female terminal 10 and the male terminal is secured.
  • the position of the pressing portion 44 is in the non-plated area S.
  • the fixed piece 42 is provided at the rear of the biasing portion 41 via three connecting portions 43 extending rearward from three portions of the central portion at the rear end edge of the biasing portion 41 and the both ends thereof.
  • the fixed piece 42 covers the proximal end 27A of the non-adjacent contact piece 27 from the outside as shown in FIG. 3 and wraps the both side edges of the proximal end 27A of the non-adjacent contact piece 27 from both sides There is.
  • a pair of holding pieces 28 protruding outward in the circumferential direction is provided at substantially central portions in the front-rear direction at both side edges of the non-adjacent contact pieces 27.
  • the core wire 51 of the electric wire 50 When the core wire 51 of the electric wire 50 is placed on the connection surface 23A of the wire connection portion 23 and the connection surface 23A and the core wire 51 are applied to the ultrasonic vibration portion of the ultrasonic bonding apparatus, the core wire 51 and the connection surface 23A are ultrasonically vibrated It adheres. At this time, the entire female terminal 10 ultrasonically vibrates, and the pressing portion 44 of the spring 40 and the elastic contact piece 25 rub against each other by the ultrasonic vibration. However, since the position of the pressing portion 44 is in the non-plating region S of the elastic contact piece 25 and SUS, which is the material of the spring 40, is a material that is difficult to adhere, the pressing portion 44 of the spring 40 and the elastic contact piece 25 does not adhere.
  • the entire female terminal 10 is ultrasonically vibrated, and conventionally, the spring 40 and the elastic contact piece 25 are used.
  • the applied plating was adhered by ultrasonic vibration.
  • the position of the contact point where the elastic contact piece 25 and the spring 40 contact is in the area S where the base of the elastic contact piece 25 is exposed (the area not plated) Because it is inside, it is possible to prevent adhesion between the plating and the spring 40 due to ultrasonic vibration.
  • the pressing part 44 in the spring 40 by comprising in this way, the position of the contact part of the elastic contact piece 25 and the spring 40 becomes clear. Further, by clarifying the position of the contact portion, the region S where the base of the elastic contact piece 25 is exposed can be further limited.
  • the spring 40 does not have to be plated for rust prevention. Therefore, using stainless steel (SUS) as the material of the spring 40 is suitable for the female terminal 10 of the present embodiment.
  • SUS stainless steel
  • the resilient contact piece 25 is urged radially inward from the outer side in the radial direction by the three pressing portions 44 of the spring 40, but the biasing portion of the spring is the inner side of the resilient contact piece.
  • the resilient contact piece may be biased from the radially inner side to the outer side by a pressing portion disposed in the biasing portion and projecting radially outward.
  • the terminal connection portion of the mating terminal has a cylindrical shape that covers the elastic contact piece 25 at the time of fitting, and the pressing portion of the elastic contact piece presses the inner surface of the cylindrical terminal connection portion.
  • the number of elastic contact pieces 25 is three in the above embodiment, the number of elastic contact pieces may be two or four or more.
  • the area S on the front outer peripheral surface of the elastic contact piece 25 is not plated, only the peripheral portion of the pressing portion 44 on the elastic contact piece 25 is plated in a spot manner Alternatively, the entire outer surface of the elastic contact piece 25 may not be plated.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

La borne femelle 10 selon la présente invention comprend : une partie de base cylindrique 24 s'étendant dans la direction longitudinale ; une pluralité de pièces de contact élastiques 25 faisant saillie vers l'avant à partir de l'extrémité avant de la partie de base 24, les pièces de contact élastiques 25 étant disposées de manière à pouvoir se déplacer élastiquement dans la direction radiale de la partie de base 24 ; un ressort 40 en contact avec la pluralité de pièces de contact élastiques 25 à partir de la direction de blocage de la déformation élastique de la pluralité de pièces de contact élastiques 25, le ressort 40 étant apte à se déplacer élastiquement dans la direction de déplacement élastique des pièces de contact élastiques 25 ; et un placage appliqué à la pluralité de pièces de contact élastiques 25. Les pièces de contact élastiques 25 ont une région dans laquelle un placage est appliqué et une région S dans laquelle le substrat des pièces de contact élastiques 25 est exposé. La position d'une partie de contact au niveau de laquelle les pièces de contact élastiques 25 et le ressort 40 sont en contact se trouve à l'intérieur de la région S dans laquelle le substrat est exposé.
PCT/JP2018/039038 2017-10-24 2018-10-19 Borne femelle WO2019082816A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017205046A JP2019079668A (ja) 2017-10-24 2017-10-24 雌端子
JP2017-205046 2017-10-24

Publications (1)

Publication Number Publication Date
WO2019082816A1 true WO2019082816A1 (fr) 2019-05-02

Family

ID=66246871

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/039038 WO2019082816A1 (fr) 2017-10-24 2018-10-19 Borne femelle

Country Status (2)

Country Link
JP (1) JP2019079668A (fr)
WO (1) WO2019082816A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002231356A (ja) * 2001-02-05 2002-08-16 Sumitomo Wiring Syst Ltd 端子金具
JP2009054374A (ja) * 2007-08-24 2009-03-12 Auto Network Gijutsu Kenkyusho:Kk ソケット端子
JP2010113962A (ja) * 2008-11-06 2010-05-20 Autonetworks Technologies Ltd ソケット端子
US8317552B2 (en) * 2010-08-27 2012-11-27 Souriau Female electrical contact, connector unit, and process for production
JP2015207540A (ja) * 2014-04-23 2015-11-19 日本航空電子工業株式会社 ソケットコンタクト

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002231356A (ja) * 2001-02-05 2002-08-16 Sumitomo Wiring Syst Ltd 端子金具
JP2009054374A (ja) * 2007-08-24 2009-03-12 Auto Network Gijutsu Kenkyusho:Kk ソケット端子
JP2010113962A (ja) * 2008-11-06 2010-05-20 Autonetworks Technologies Ltd ソケット端子
US8317552B2 (en) * 2010-08-27 2012-11-27 Souriau Female electrical contact, connector unit, and process for production
JP2015207540A (ja) * 2014-04-23 2015-11-19 日本航空電子工業株式会社 ソケットコンタクト

Also Published As

Publication number Publication date
JP2019079668A (ja) 2019-05-23

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