WO2014112524A1 - Connecteur - Google Patents

Connecteur Download PDF

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Publication number
WO2014112524A1
WO2014112524A1 PCT/JP2014/050575 JP2014050575W WO2014112524A1 WO 2014112524 A1 WO2014112524 A1 WO 2014112524A1 JP 2014050575 W JP2014050575 W JP 2014050575W WO 2014112524 A1 WO2014112524 A1 WO 2014112524A1
Authority
WO
WIPO (PCT)
Prior art keywords
female terminal
housing
terminal
fitting
terminal fitting
Prior art date
Application number
PCT/JP2014/050575
Other languages
English (en)
Japanese (ja)
Inventor
尚一 長坂
Original Assignee
矢崎総業株式会社
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 矢崎総業株式会社 filed Critical 矢崎総業株式会社
Publication of WO2014112524A1 publication Critical patent/WO2014112524A1/fr

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42Securing in a demountable manner
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/533Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure

Definitions

  • the present invention relates to a connector.
  • Patent Document 1 and Patent Document 2 disclose a technique for preventing the backlash of the terminal fitting in the connector.
  • the housing 100 that houses the female terminal fitting 110 includes a resin terminal housing member 120 that houses and holds the female terminal fitting 110, and the And a resin case 130 into which the terminal accommodating member 120 can be inserted and removed.
  • the terminal receiving member 120 is provided with a terminal locking lance 123 on the upper wall 122 in which the terminal receiving hole 121 into which the female terminal fitting 110 is inserted is defined.
  • the terminal locking lance 123 is an elastic piece that can be bent and deformed in a direction (arrow Y1 direction in FIG. 18) orthogonal to the insertion / extraction direction of the female terminal fitting 110 with respect to the terminal receiving hole 121 (arrow X1 direction in FIG. 18).
  • the terminal locking lance 123 in Patent Document 1 the terminal locking projection 123b is engaged with the step portion 111 of the female terminal fitting 110, so that the female terminal fitting 110 is prevented from coming off. Further, when the terminal accommodating member 120 is inserted into the case 130, the terminal locking lance 123 is elastically deformed toward the female terminal fitting 110 side by the backlash projection 123c being pressed and urged by the upper wall 131 of the case 130. It will be in the state. At this time, the terminal accommodating member 120 is rattled by the elastic reaction force acting on the upper wall 131 from the ratchet projection 123c.
  • the backlash prevention technology disclosed in Patent Document 2 below includes a flexible band portion facing the outer surface of the female terminal fitting in the housing, and an outer surface of the female terminal fitting protruding from the flexible band portion. And a position regulating protrusion for applying a pressing force in a direction orthogonal to the insertion / extraction direction of the female terminal fitting. That is, in Patent Document 2, the female terminal fitting in the housing is directly applied with a pressing force in a direction orthogonal to the insertion / extraction direction, thereby preventing the female terminal fitting from being loose.
  • Patent Document 1 has a problem that the housing for accommodating the female terminal fitting is an assembly structure of the terminal accommodating member 120 and the case 130, and the number of housing components increases.
  • the purpose of the present invention is to solve the above-mentioned problems, and without causing problems such as an increase in the number of components and deterioration of the insertion / extraction of the terminal fitting, suppressing the play of the terminal fitting in a vibration environment, It is an object of the present invention to provide a connector capable of maintaining stable electrical connection performance.
  • a first housing having a female terminal accommodating portion for holding a female terminal fitting, and a male terminal fitting having a tongue-shaped terminal tip fitted to the female terminal fitting
  • a second housing to be fitted and connected
  • the female terminal accommodating portion is connected to the female terminal accommodating hole for accommodating the female terminal fitting, the female terminal accommodating hole is opened at the distal end surface of the female terminal accommodating portion, and the tongue-shaped terminal distal end portion is
  • a male terminal insertion hole that can be inserted, a restriction piece insertion hole that communicates with one side of the female terminal accommodation hole and extends in parallel with the female terminal accommodation hole and opens at a distal end surface of the female terminal accommodation portion
  • the second housing includes a cylindrical portion in which the female terminal accommodating portion is fitted, and the terminal tip portion is fitted in the female terminal fitting in the female terminal accommodating portion fitted in the cylindrical portion.
  • the male terminal accommodating portion that holds the male terminal fitting, and the cylindrical shape that faces the distal end surface of the female terminal accommodating portion so as to be inserted into the restriction piece insertion hole of the female terminal accommodating portion fitted into the cylindrical portion.
  • a backlash regulating piece projecting on the inner bottom surface of the part, In a state in which the first housing and the second housing are fitted and connected, the backlash restricting piece presses and urges one surface of the female terminal fitting in the female terminal housing portion, and the female terminal fitting has a backlash. Connector that suppresses
  • the female terminal receiving portion elastically displaces outward of the female terminal receiving hole due to interference with the female terminal fitting during the insertion of the female terminal fitting, and an elastic restoring force is obtained when the insertion of the female terminal fitting is completed.
  • a terminal locking lance that returns to the state protruding into the female terminal receiving hole and prevents the female terminal fitting from coming off, and the inside of the restricting piece insertion hole allows space for elastic displacement of the terminal locking lance.
  • the backlash restricting piece provided in the housing enters the restricting piece insertion hole of the first housing. Then, the backlash restricting piece that has entered the restricting piece insertion hole of the first housing presses and urges one surface of the female terminal fitting in the first housing to suppress the play of the female terminal fitting.
  • the rattling of the female terminal fitting is performed by the backlash restricting piece projecting on the inner bottom surface of the cylindrical portion of the second housing, and the second housing itself is a single unit. Since only one part is required, the number of components does not increase.
  • the backlash restricting piece provided in the second housing does not participate in the insertion / extraction of the male terminal fitting to / from the second housing, and does not participate in the insertion / extraction of the female terminal fitting in the first housing.
  • the backlash restricting piece does not contact any of the terminal fittings when inserting or removing the terminal fittings in the respective housings, so that a large operating force is not required for inserting or removing the terminal fittings. Therefore, the problem of deterioration of the insertion / extraction of the terminal fitting is not caused.
  • the backlash regulating piece of the second housing entering the regulating piece insertion hole is bent and protrudes into the regulating piece insertion hole. It collides with the terminal locking lance which is present, and the mutual fitting of the housing cannot be completed. That is, the backlash regulating piece functions as a half-fitting detection mechanism that detects the half-fitted state of the female terminal fitting, and can prevent oversight of the half-fitted state of the female terminal fitting.
  • the backlash restricting piece protrudes further forward than the tip of the terminal tip, external equipment or the like enters the cylindrical part during storage or transportation of the second housing.
  • the contact between the tongue-shaped terminal tip of the male terminal fitting and the external equipment is prevented by the backlash regulating piece. That is, the backlash regulating piece protects the terminal tip of the male terminal fitting, and can prevent deformation and breakage of the terminal tip.
  • FIG. 1 is a perspective view of a connector according to an embodiment of the present invention in a state where a first housing and a second housing are fitted and connected.
  • FIG. 2 is a longitudinal sectional view of the connector shown in FIG.
  • FIG. 3 is a perspective view of the upper surface portion side of the female terminal fitting shown in FIG. 4 is a perspective view of the bottom surface side of the female terminal fitting shown in FIG.
  • FIG. 5 is a perspective view of the first housing shown in FIG.
  • FIG. 6 is an essential part enlarged perspective view showing a terminal metal fitting retaining structure in the first housing shown in FIG.
  • FIG. 7 is an enlarged longitudinal sectional view of the terminal metal fitting retaining structure shown in FIG.
  • FIG. 8 is a perspective view of the upper surface side of the male terminal fitting shown in FIG. FIG.
  • FIG. 9 is a perspective view of the bottom surface portion side of the male terminal fitting shown in FIG.
  • FIG. 10 is a perspective view of the second housing shown in FIG.
  • FIG. 11 is a front view of the second housing shown in FIG.
  • FIG. 12 is a partially broken perspective view showing the structure in the cylindrical portion of the second housing shown in FIG.
  • FIG. 13 is a longitudinal sectional view of the second housing shown in FIG.
  • FIG. 14 is an enlarged cross-sectional view of a main part in the fitting state of the housings shown in FIG.
  • FIG. 15 is an enlarged cross-sectional view of a main part showing a half-fitted state of the female terminal fitting in the first housing of the embodiment.
  • FIG. 16 is a longitudinal cross-sectional view of a main part showing a fitting state between the first housing and the second housing in which the female terminal fitting is in a half-fitted state.
  • FIG. 17 is an enlarged view of a main part of FIG.
  • FIG. 18 is a longitudinal sectional view of a main part of a conventional connector.
  • FIGS. 1 to 17 show an embodiment of a connector according to the present invention.
  • the connector 1 of this embodiment is a first housing for holding a female terminal fitting 10 as shown in FIGS. 20, and a second housing 40 fitted and connected to the first housing 20 while holding the male terminal fitting 30 fitted to the female terminal fitting 10.
  • the female terminal fitting 10 is a press-molded product made of a metal plate, and as shown in FIGS. 3 and 4, a rectangular tube-like terminal fitting portion into which a tongue-like terminal tip portion 31 of the male terminal fitting 30 is fitted. 11, a core wire crimping piece 12 for crimping the core wire of the electric wire 51 (see FIG. 2), and a covering crimping piece 13 that is crimped on the covering portion of the electric wire 51 to fix the electric wire 51. .
  • a lance engaging portion 15 and a lance fitting hole 16 are provided on the bottom surface portion 11 a of the terminal fitting portion 11.
  • the lance engaging portion 15 has a structure that protrudes downward (upward in FIG. 4) from the bottom surface portion 11a of the terminal fitting portion 11, and engages with a terminal locking lance 213 in the first housing 20 described later. , Will be retained.
  • the lance insertion hole 16 is an opening into which the outer surface side of the terminal locking lance 213 engaged with the lance engaging portion 15 can be immersed.
  • the first housing 20 includes a female terminal accommodating portion 21 that holds the female terminal fitting 10, and a lock arm 22 provided on the upper surface of the female terminal accommodating portion 21.
  • the female terminal accommodating portion 21 includes a female terminal accommodating hole 211 that accommodates the female terminal fitting 10, a male terminal insertion hole 212, a terminal locking lance 213, and a restriction piece insertion hole 214. (See FIG. 7).
  • the female terminal receiving hole 211 is opened at the rear end of the first housing 20, and the female terminal fitting 10 is inserted from the rear of the first housing 20.
  • the male terminal insertion hole 212 is a hole opened in the distal end surface of the female terminal accommodating portion 21 and communicates with the female terminal accommodating hole 211.
  • the male terminal insertion hole 212 is a hole through which the tongue-shaped terminal tip 31 of the male terminal fitting 30 described later can be inserted.
  • the terminal locking lance 213 is provided on the bottom surface of the female terminal receiving hole 211 facing the bottom surface portion 11 a of the female terminal fitting 10.
  • the terminal locking lance 213 is an elastic piece that extends along the insertion direction of the female terminal fitting 10 into the female terminal accommodating hole 211.
  • the terminal locking lance 213 is elastically displaced toward the outer side of the female terminal receiving hole 211 (arrow Y2 side in FIG. 7) due to interference with the bottom surface portion 11a of the female terminal fitting 10 while the female terminal fitting 10 is being inserted.
  • the restriction piece insertion hole 214 is a hole that communicates with one side (bottom surface side) of the female terminal accommodation hole 211 and that extends in parallel with the female terminal accommodation hole 211.
  • the restricting piece insertion hole 214 is opened at the distal end surface of the female terminal accommodating portion 21, and a play restricting piece 43 of the second housing 40 described later is inserted therethrough.
  • the terminal locking lance 213 is arranged so that the inside of the restricting piece insertion hole 214 is a space that allows elastic displacement of the terminal locking lance 213.
  • the lock arm 22 provided in the first housing 20 has an engagement protrusion 222 protruding from a flexible arm 221 extending from the front end side of the female terminal accommodating portion 21 toward the rear end. Structure.
  • the lock arm 22 locks the connection state between the housings by engaging the engaging protrusions 222 with the locking protrusions (lock beaks) 411 of the second housing 40.
  • the male terminal fitting 30 is a press-molded product made of a metal plate. As shown in FIGS. 8 and 9, as shown in FIGS. 8 and 9, a tongue-shaped terminal distal end portion 31 and a rectangular tube-shaped terminal intermediate portion connected to the proximal end of the terminal distal end portion 31. A portion 32, a core wire crimping piece 33 for crimping the core wire of the electric wire 52 (see FIG. 2), and a covering crimping piece 34 that is crimped on the covering portion of the electric wire 52 to fix the electric wire 52. Yes.
  • the bottom surface portion 32 a of the terminal intermediate portion 32 has the same structure as the bottom surface portion 11 a of the terminal fitting portion 11 of the female terminal fitting 10, and the lance engaging portion 35 and the lance fitting hole. 36.
  • the lance engaging portion 35 has a structure protruding downward (upward in FIG. 9) from the bottom surface portion 32a of the terminal intermediate portion 32, and engages with a terminal locking lance 421a in the second housing 40 described later. , Will be retained.
  • the lance insertion hole 36 is an opening in which the outer surface side of the terminal locking lance 421a engaged with the lance engagement portion 35 can be immersed.
  • the second housing 40 includes a cylindrical part 41 into which the female terminal accommodating part 21 is fitted, a male terminal accommodating part 42 connected to the base end of the cylindrical part 41, and a cylindrical shape.
  • a backlash restricting piece 43 protruding into the portion 41.
  • the cylindrical portion 41 is a rectangular tube shape that accommodates the female terminal accommodating portion 21.
  • a locking projection 411 protrudes from the inner surface on the distal end side of the cylindrical portion 41. As shown in FIG. 2, the locking protrusion 411 engages with the lock arm 22 on the female terminal accommodating portion 21 inserted into the cylindrical portion 41 to lock the connection state between the housings.
  • the male terminal accommodating part 42 has the male terminal accommodating hole 421 in which the male terminal metal fitting 30 is inserted, as shown in FIG.
  • a terminal locking lance 421a is provided on one side surface (upper side surface in FIG. 13) of the male terminal accommodation hole 421.
  • the clamp mounting part 423 is provided in the outer surface of the male terminal accommodating part 42.
  • the clamp mounting portion 423 is used when the second housing 40 is clamped to the vehicle body or the like.
  • the terminal locking lance 421a is provided on the upper surface of the male terminal receiving hole 421 facing the bottom surface portion 32a of the male terminal fitting 30, as shown in FIG.
  • the terminal locking lance 421a is an elastic piece extending along the insertion direction of the male terminal fitting 30 into the male terminal accommodating hole 421.
  • This terminal locking lance 421a is elastically moved to the outer side of the male terminal receiving hole 421 (in the direction of arrow Y3 in FIG. 13) due to interference with the bottom surface portion 32a of the male terminal fitting 30 during the insertion of the male terminal fitting 30.
  • the terminal tip portion 31 protrudes into the tubular portion 41 so that the terminal tip portion 31 fits into the female terminal fitting 10 in the female terminal housing portion 21 fitted into the tubular portion 41.
  • the male terminal fitting 30 is held in the state where it is made.
  • the backlash regulating piece 43 protrudes from the inner bottom surface 41 b of the cylindrical portion 41 that faces the front end surface of the female terminal accommodating portion 21.
  • the play restricting piece 43 protrudes from the inner bottom surface 41b along the fitting direction of the female terminal accommodating portion 21 so as to be inserted into the restricting piece insertion hole 214 of the female terminal accommodating portion 21 fitted to the cylindrical portion 41.
  • the backlash regulating piece 43 protrudes further forward than the tip of the terminal tip 31 as shown in FIG.
  • the play restricting piece 43 enters the restricting piece insertion hole 214 of the first housing 20, and presses and urges one surface (the lower surface in FIG. 14) of the female terminal fitting 10 in the female terminal accommodating portion 21. Suppress backlash.
  • the female terminal fitting 10 accommodated in the first and second housings 20 and 40 respectively.
  • the male terminal fitting 30 and the male terminal fitting 30 are fitted, while the backlash restricting piece 43 provided in the second housing 40 enters the restricting piece insertion hole 214 of the first housing 20.
  • the backlash restricting piece 43 that has entered the restricting piece insertion hole 214 of the first housing 20 presses and urges one surface (the lower surface in FIG. 14) of the female terminal fitting 10 in the first housing 20, thereby Suppresses 10 rattles.
  • the rattling of the female terminal fitting 10 is performed by the backlash regulating piece 43 protruding from the inner bottom surface 41b of the cylindrical portion 41 of the second housing 40, and the second housing Since 40 itself may be a single component, the number of components does not increase.
  • the backlash restricting piece 43 provided in the second housing 40 is not involved in the insertion / extraction of the male terminal fitting 30 to / from the second housing 40 and is used for the insertion / extraction of the female terminal fitting 10 to / from the first housing 20. Also not involved. That is, the backlash restricting piece 43 does not contact any of the male and female terminal fittings 10 and 30 when the male and female terminal fittings 10 and 30 are inserted and removed from the first and second housings 20 and 40, respectively. , 30 does not require a large operating force. Therefore, the problem of deterioration of the insertion / extraction of the male and female terminal fittings 10 and 30 does not occur.
  • the rattling of the male and female terminal fittings 10 and 30 in a vibration environment is suppressed without causing problems such as an increase in the number of components and the deterioration of the insertion / extraction characteristics of the terminal fittings. Connection performance can be maintained.
  • the backlash restricting piece 43 functions as a half-fitting detection mechanism that detects the half-fitted state of the female terminal fitting 10 and can prevent the half-fitted state of the female terminal fitting 10 from being overlooked.
  • the backlash restricting piece 43 protrudes further forward than the tip of the terminal tip 31, so that the second housing 40 can be stored or transported. Even if an external device or the like enters the cylindrical portion 41, contact between the tongue-shaped terminal tip portion 31 of the male terminal fitting 30 and the external device or the like is prevented by the backlash regulating piece 43. That is, the play restricting piece 43 protects the terminal tip portion 31 of the male terminal fitting 30 and can prevent the terminal tip portion 31 from being deformed or damaged.
  • the female terminal accommodating portion (21) communicates with the female terminal accommodating hole (211) for accommodating the female terminal fitting (10), and the female terminal accommodating hole (211).
  • the second housing (40) includes a cylindrical part (41) into which the female terminal accommodating part (21) is fitted, and a female terminal accommodating part (21) fitted into the cylindrical part (41).
  • a male terminal housing (42) for holding the male terminal fitting (30) so that the terminal tip (31) is fitted to the female terminal fitting (10), and a fitting to the tubular part (41).
  • the inner bottom surface (41b) of the tubular portion (41) facing the tip surface of the female terminal housing portion (21) so as to be inserted into the restriction piece insertion hole (214) of the female terminal housing portion (21).
  • the connector (1) according to [1] above, The female terminal accommodating portion (21) is elastically displaced outward of the female terminal accommodating hole (211) due to interference with the female terminal fitting (10) during the insertion of the female terminal fitting (10), When the insertion of the female terminal fitting (10) is completed, the terminal locking lance (213) that returns to the state protruding into the female terminal receiving hole (211) by elastic restoring force and prevents the female terminal fitting (10) from coming off. And the terminal locking lance (213) is arranged so that the inside of the restricting piece insertion hole (214) is a space allowing the elastic displacement of the terminal locking lance (213). .
  • the connector according to the present invention without causing problems such as an increase in the number of components and a deterioration in the insertion / removability of the terminal fitting, the looseness of the terminal fitting in a vibration environment is suppressed and stable electrical connection performance is maintained. be able to.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

Dans l'invention, la section (21) d'accueil de borne femelle d'un premier logement (20) comporte un trou (211) d'accueil de borne femelle se connectant d'un côté et un trou d'insertion (214) de pièce limitatrice s'étendant parallèlement à et s'ouvrant vers la surface d'extrémité de la section (21) d'accueil de borne femelle. Une pièce (43) limitant le cliquetis est disposée de manière à pénétrer dans le trou d'insertion (214) de pièce limitatrice sur la surface inférieure intérieure (41b) d'une partie cylindrique (41) dans laquelle la section (21) d'accueil de borne femelle s'engrène. Quand les logements sont mutuellement connectés de manière engrenée, la pièce (43) limitant le cliquetis appuie sur une surface d'une fixation (10) de borne femelle à l'intérieur de la section (21) d'accueil de borne femelle et supprime le cliquetis dans la fixation (10) de borne femelle.
PCT/JP2014/050575 2013-01-15 2014-01-15 Connecteur WO2014112524A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-004857 2013-01-15
JP2013004857A JP2014137866A (ja) 2013-01-15 2013-01-15 コネクタ

Publications (1)

Publication Number Publication Date
WO2014112524A1 true WO2014112524A1 (fr) 2014-07-24

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ID=51209613

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/050575 WO2014112524A1 (fr) 2013-01-15 2014-01-15 Connecteur

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JP (1) JP2014137866A (fr)
WO (1) WO2014112524A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107112678A (zh) * 2015-01-14 2017-08-29 住友电装株式会社 连接器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5813678U (ja) * 1981-07-17 1983-01-28 住友電装株式会社 コネクタ
JPS60115473U (ja) * 1984-01-13 1985-08-05 住友電装株式会社 コネクタ
JPH08306424A (ja) * 1995-05-01 1996-11-22 Kansei Corp 電気コネクタ
JP2004319155A (ja) * 2003-04-14 2004-11-11 Sumitomo Wiring Syst Ltd コネクタ
JP2011048945A (ja) * 2009-08-25 2011-03-10 Sumitomo Wiring Syst Ltd コネクタ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5813678U (ja) * 1981-07-17 1983-01-28 住友電装株式会社 コネクタ
JPS60115473U (ja) * 1984-01-13 1985-08-05 住友電装株式会社 コネクタ
JPH08306424A (ja) * 1995-05-01 1996-11-22 Kansei Corp 電気コネクタ
JP2004319155A (ja) * 2003-04-14 2004-11-11 Sumitomo Wiring Syst Ltd コネクタ
JP2011048945A (ja) * 2009-08-25 2011-03-10 Sumitomo Wiring Syst Ltd コネクタ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107112678A (zh) * 2015-01-14 2017-08-29 住友电装株式会社 连接器
CN107112678B (zh) * 2015-01-14 2019-04-02 住友电装株式会社 连接器

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