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WO2019035332A1 - Connector - Google Patents

Connector Download PDF

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Publication number
WO2019035332A1
WO2019035332A1 PCT/JP2018/028016 JP2018028016W WO2019035332A1 WO 2019035332 A1 WO2019035332 A1 WO 2019035332A1 JP 2018028016 W JP2018028016 W JP 2018028016W WO 2019035332 A1 WO2019035332 A1 WO 2019035332A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
terminal fitting
terminal
fitting
conductive member
Prior art date
Application number
PCT/JP2018/028016
Other languages
French (fr)
Japanese (ja)
Inventor
新史 野崎
康雄 大森
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2019035332A1 publication Critical patent/WO2019035332A1/en

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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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement

Definitions

  • the present invention relates to a connector.
  • Patent Document 1 discloses a connector for connecting a female terminal fitting attached to a female housing and a male terminal fitting attached to a male housing.
  • the female terminal fitting has a rectangular cylindrical electrical connection portion, and the elastic contact piece is accommodated in the electrical connection portion.
  • the first invention has been completed in consideration of the above circumstances, and has an object to miniaturize it.
  • the female terminal fitting and the male terminal fitting that constitute the above connector are connected to the end of the electric wire, the crimped portion for connecting the electric wire and the terminal connection portion connected to the mating terminal metal fitting And are formed as separate sites, so the structure is complicated.
  • the second and third inventions are completed in consideration of the above circumstances, and their object is to simplify the shape.
  • the connector of the first invention is A first housing, A first terminal fitting attached to the first housing; A second housing mateable with the first housing; A second terminal fitting attached to the second housing; An elastic conductive member is provided between the first terminal fitting and the second terminal fitting, the elastic conductive member being substantially parallel to the fitting direction of the first housing and the second housing.
  • the conductive path with a terminal of the second invention is A covered electric wire in which a core wire is surrounded by an insulation coating, and a terminal fitting connected to the front end of the covered electric wire;
  • the terminal fitting is characterized in that the terminal fitting encloses the core wire in a tightened state, and the outer surface has a tubular connection portion that functions as a connection means with a mating terminal.
  • the terminal fitting of the third invention is A terminal fitting that constitutes a conductive path with a terminal by being connected to the front end of a coated wire in which a core wire is surrounded by an insulating coating, It is characterized in that the core wire is enclosed in a tightened state, and the outer surface has a cylindrical connection portion that functions as a connection means with the opposite terminal.
  • the first terminal fitting and the second terminal fitting are electrically connected via the elastic conductive member.
  • the first terminal fitting and the second terminal fitting do not have a connection form in which one is inserted into the other, so the dimension in the direction intersecting with the fitting direction of both housings can be reduced.
  • the cylindrical connection portion since the cylindrical connection portion has both the function of adhering to the core wire and the function of connecting to the mating terminal, the shape of the terminal fitting can be simplified. it can.
  • the elastic conductive member may be held by the first housing so as to face the second housing. According to this configuration, since the elastic conductive member can be handled integrally with the first housing, handling and fitting work of both the housings are easy.
  • the elastic conductive member may have a form in which a flexible conductor is embedded in an elastic body. According to this configuration, since the conductor is not exposed, it is possible to prevent damage or the like of the conductor due to the interference of other members.
  • the plurality of first terminal fittings and the plurality of second terminal fittings are arranged in parallel, and the elastic body includes the first terminal fittings and the second terminals.
  • the plurality of conductors may be arranged to correspond to the plurality of first terminal fittings and the plurality of second terminal fittings in a shape elongated in the parallel direction of the metal fittings. According to this configuration, the plurality of first terminal fittings and the plurality of second terminal fittings can be conducted separately by one elastic conductive member.
  • the first terminal fitting and the second terminal fitting may have the same shape. According to this configuration, the number of types of parts can be reduced.
  • the first terminal fitting and the second terminal fitting are connected to a front end portion of a covered electric wire in which a core wire is surrounded by an insulation coating.
  • a cylindrical connection portion may be formed which surrounds the core wire in a tightened state and whose outer surface functions as a connection means with the elastic conductive member.
  • the second and third inventions are provided with a coating surrounding portion connected to the rear end of the cylindrical connection portion and surrounding the region of the coated electric wire in which the insulating coating surrounds the core wire in a tightened state May be According to this configuration, since the coated wire and the terminal fitting are fixed in a tightened state at both the tubular connection portion and the coating surrounding portion, the bonding strength between the coated wire and the terminal fitting is high.
  • the covering surrounding portion includes a pair of slits extending axially forward from the rear end of the covering surrounding portion, and aft along the slits.
  • a pair of retaining portions may be formed extending in a cantilever shape and expanding radially outward toward the rear. According to this configuration, the terminal fitting inserted into the housing is retained by locking the retaining portion to the housing.
  • the retaining portion has a simple shape because it extends in a cantilever shape along the slit.
  • a covering fastening part for fastening the outer periphery of the insulating covering is formed in a region on the front side of the retaining part in the covering surrounding part It is also good. According to this configuration, when the diameter of the covering tightening portion is reduced and the outer periphery of the insulation coating is tightened, the diameter of the outer side of the covering tightening portion moves radially outward as the locking portion moves rearward. It is deformed to extend to Therefore, the process of tightening the insulating coating at the coating tightening portion and the process of expanding the retaining portion radially outward can be performed in one step.
  • the connector of the present embodiment includes a female connector F and a male connector M which can be fitted and separated from each other.
  • the right side in FIGS. 2, 4 and 5 is defined as the front
  • FIGS. We define the left side in as the front.
  • the directions appearing in FIGS. 1 to 12 and 15 to 21 are defined as upper and lower as they are.
  • the directions appearing in FIGS. 6-9, 11-14, 16, 17, 20 are defined as left and right as they are.
  • the female connector F includes a first housing 10 made of synthetic resin, one front holder 19, a plurality of (three in this embodiment) elastic conductive members 23, and a plurality of terminal fittings 26 (claims) And the first terminal fitting).
  • the first housing 10 is formed with a housing recess 11 in which the front end surface (the surface facing the second housing 40 when the two connectors F and M are fitted) is recessed.
  • a pair of guide grooves 12 extending in the vertical direction (a direction orthogonal to the fitting direction of the two housings 10 and 40) is formed on both left and right inner side surfaces of the housing recess 11.
  • the guide groove 12 is open to the lower surface of the first housing 10.
  • a locking hole 13 opened in the outer side surface of the first housing 10 is formed in a substantially central portion in the vertical direction of the two guide grooves 12.
  • a plurality of first terminal accommodation chambers 14 elongated in the front-rear direction are formed in upper and lower three stages. In each of the upper, middle, and lower stages, the plurality of first terminal accommodation chambers 14 are arranged in parallel at a constant pitch in the left-right direction.
  • the front end side area of each first terminal accommodating chamber 14 is a first small diameter accommodating portion 15 which is elongated in the front-rear direction.
  • the cross-sectional shape of the first small diameter housing portion 15 when cut at a right angle to the axis is circular.
  • the front end of the first small diameter housing portion 15 is open to the housing recess 11.
  • each first terminal storage chamber 14 is a first large diameter storage portion 16 coaxially connected to the rear end of the first small diameter storage portion 15.
  • the cross-sectional shape of the first large-diameter storage portion 16 when cut at a right angle to the axis is generally circular, and more specifically, it has an oblong shape in which the upper and lower dimensions are slightly larger than the left and right dimensions.
  • the left and right dimensions of the first large diameter accommodation portion 16 are larger than the inner diameter of the first small diameter accommodation portion 15. Due to this dimensional difference, the first front stop 17 is formed at the front end of the first large diameter accommodation portion 16.
  • the rear end of the first large diameter accommodation portion 16 is open at the rear end surface of the first housing 10.
  • On the inner periphery of the rear end portion of the first large diameter accommodation portion 16 a pair of left and right symmetrical first retaining projections 18 in which the upper surface portion thereof protrudes radially inward (downward) are formed.
  • the front holder 19 is made of synthetic resin, and as a whole, has a flat plate shape in which the thickness direction is in the front-rear direction.
  • a pair of left and right locking projections 20 are formed on left and right side edge portions of the front holder 19.
  • the front holder 19 is attached to the inside of the housing recess 11 from below the first housing 10. At the time of attachment, the left and right side edge portions of the front holder 19 are fitted in the guide grooves 12 and the front holder 19 is slid and accommodated in the accommodation recess 11.
  • the front holder 19 is held in a positioned state on the front surface of the first housing 10 by the locking projection 20 being fitted and locked in the locking hole 13.
  • the front holder 19 is formed with a plurality of through holes 22 individually corresponding to the plurality of first terminal accommodation chambers 14.
  • the plurality of through holes 22 are divided into upper, middle, and lower three stages, and are arranged in the corresponding holding grooves 21 among the upper, middle, and lower.
  • Each through hole 22 penetrates the front holder 19 in the front-rear direction.
  • the opening shape (cross-sectional shape) of the through hole 22 is circular, and the inner diameter of the through hole 22 is equal to or slightly smaller than the inner diameter of the first small diameter accommodating portion 15.
  • the elastic conductive member 23 is a single member in which an elastic body 24 such as silicone rubber capable of elastic deformation and a plurality of conductors 25 embedded in the elastic body 24 are integrated.
  • the elastic conductive member 23 and the elastic body 24 have a rectangular columnar shape elongated in the left-right direction, and are fitted in the holding groove 21 of the front holder 19 so as to be positioned.
  • the conductor 25 is made of an elongated metal wire, and has flexibility such that it can be bent and deformed freely in the direction intersecting the length direction. As a material of the conductor 25, it is possible to use a gold-plated brass or the like.
  • the conductor 25 is embedded in the elastic body 24 so as to extend linearly in the front-rear direction (the direction parallel to the fitting direction of the two housings 10 and 40).
  • the plurality of conductors 25 are arranged at predetermined pitches in the vertical and horizontal directions.
  • the pitch of the adjacent conductors 25 is set to be smaller than the minimum outer diameter of the cylindrical connection portion 27 of the terminal fitting 26 described later.
  • the front end portion of the conductor 25 is exposed in a slightly projecting state on the front surface of the elastic body 24.
  • the front end portions of the plurality of conductors 25 are disposed in one through hole 22.
  • the rear end portion of the conductor 25 is exposed in the state of slightly projecting on the rear surface of the elastic body 24.
  • the terminal fitting 26 is formed into a substantially cylindrical shape whose axis is directed in the front-rear direction as a whole by subjecting a cylindrical member made of metal to pressing, caulking, or the like.
  • the terminal fitting 26 is conductively fixed to the front end portion of the coated wire 34.
  • the coated wire 34 has a known form in which a conductive core wire 35 is surrounded by an insulating coating 36. At the front end of the coated wire 34, the front end of the insulating coating 36 is removed, and the front end of the core wire 35 is exposed.
  • a terminal-attached conductive path 37 is configured.
  • the terminal fitting 26 is a unitary member having a substantially cylindrical shape as a whole, including a cylindrical connection portion 27 constituting the front end side area and a covering surrounding portion 30 constituting the rear end side area.
  • the maximum outer diameter of the cylindrical connection portion 27 is equal to or slightly smaller than the inner diameter of the first small diameter housing portion 15.
  • a tapered contact portion 28 in the form of a diameter reduced toward the front is formed at the foremost end of the cylindrical connection portion 27.
  • a core wire tightening portion 29 which is crimped so as to reduce in diameter is formed in a long region of the cylindrical connection portion 27 on the rear side of the tapered contact portion 28.
  • the covering surrounding portion 30 is coaxially connected to the rear end of the cylindrical connection portion 27.
  • the minimum outer diameter of the covering portion 30 is larger than the maximum outer diameter of the cylindrical connection portion 27.
  • a front end side area of the covering surrounding portion 30 is a covering tightening portion 31.
  • a pair of left and right symmetrical slits 32 are formed in a region of the covering surrounding portion 30 behind the covering tightening portion 31. The slits 32 are notched so as to extend in the axial direction forward from the rear end of the terminal fitting 26 (cover surrounding portion 30).
  • a vertically symmetrical pair of retaining portions 33 is formed in a region of the covering surrounding portion 30 behind the covering tightening portion 31.
  • the pair of retaining portions 33 is cantilevered rearward, and slightly extends radially outward (upward or downward) rearward. That is, the retaining portion 33 is oblique to the axis of the terminal fitting 26.
  • the retaining portion 33 can be elastically deformed in the vertical direction with the front end portion as a fulcrum.
  • the region of the covering surrounding portion 30 behind the covering tightening portion 31 has a configuration in which a pair of slits 32 and a pair of retaining portions 33 are alternately arranged in the circumferential direction.
  • the outer diameter of the region of the covering surrounding portion 30 where the covering tightening portion 31, the slit 32, and the retaining portion 33 are not formed is the same as or slightly smaller than the left-right dimension of the first large diameter accommodation portion 16. It is set to the dimensions. Further, the maximum upper and lower dimensions (the distance between the rear ends of the pair of retaining portions 33) of the covering surrounding portion 30 are set to be larger than the upper and lower dimensions of the first large diameter accommodation portion 16.
  • a method of manufacturing the terminal-equipped conductive path 37 will be described.
  • a wire insertion step, a diameter reduction step and a tightening step are performed.
  • the front end portion of the covered wire 34 is inserted into the forming material 38 of the terminal fitting 26.
  • the molding material 38 has a generally cylindrical shape as shown in FIG.
  • a pair of left and right slits 32 are formed in the rear end portion of the forming material 38 so as to be cut in parallel with the axis from the rear end edge of the forming material 38 forward.
  • the area in which the slits 32 are formed in the axial direction is a range covering approximately 1 ⁇ 4 of the entire length of the molding material 38.
  • the front end portion of the covered wire 34 is inserted from the rear into the forming material 38.
  • the area of the core wire 35 from which the insulation coating 36 is removed and exposed is accommodated in the area on the front end side of the molding material 38.
  • the front end of the exposed area of the core wire 35 is located slightly behind the front end (the tapered contact portion 28) of the cylindrical connection portion 27 formed in the diameter reduction step.
  • the rear end (the front end of the insulating coating 36) of the exposed area of the core wire 35 is located slightly behind the rear end of the cylindrical connection portion 27. Therefore, only the exposed region of the core wire 35 from which the insulating coating 36 is removed is accommodated in the cylindrical connection portion 27.
  • the inner diameter of the molding material 38 in the state before the tubular connection portion 27 is formed is larger than the outer diameter of the core wire 35.
  • the rear end portion of the exposed area of the core wire 35 and the front end portion of the insulating coating 36 are accommodated in the coating surrounding portion 30 formed in the diameter reducing step.
  • the outer diameter of the insulating coating 36 is equal to or slightly smaller than the inner diameter of the coating surrounding portion 30.
  • a diameter reduction process is performed on the forming material 38.
  • the front end side area of the forming material 38 is plastically deformed so as to be reduced in diameter.
  • the cylindrical connecting portion 27 and the tapered contact portion 28 are formed by this diameter reducing step, the cylindrical connecting portion 27 is crimped to the outer periphery of the exposed area of the core wire 35.
  • the region between the position slightly behind the rear end of the tapered contact portion 28 in the cylindrical connection portion 27 and the position slightly forward of the rear end of the cylindrical connection portion 27 is further contracted It is plastically deformed to form a core tightening portion 29.
  • the core wire tightening portion 29 is further strongly crimped to the outer periphery of the core wire 35.
  • the cylindrical connection portion 27 (the molding material 38) and the core wire 35 can be electrically connected, and fixed in a state in which the relative displacement in the axial direction and the circumferential direction is restricted.
  • a tightening step is performed on the forming material 38.
  • a diameter of a part of the coating surrounding portion 30 is deformed to form the covering tightening portion 31.
  • the formation area of the covering tightening portion 31 ranges from a position slightly behind the front end of the covering surrounding portion 30 to a position slightly ahead of the front end of the slit 32.
  • the coated fastening portion 31 is strongly crimped to the outer periphery of the front end portion of the insulating coating 36 in the coated electric wire 34.
  • the covering tightening portion 31 (forming material 38) and the insulating covering 36 are fixed in a state in which the relative displacement in the axial direction and the circumferential direction is restricted.
  • a pair of upper and lower retaining portions 33 is formed.
  • the region of the forming material 38 corresponding to the slit 32 in the front-rear direction is substantially parallel to the axis of the forming material 38.
  • the formation area of the covering tightening portion 31 is in front of the slit 32 and in the vicinity of the front end of the slit 32. Therefore, when the diameter of the formation region of the covering tightening portion 31 in the covering surrounding portion 30 is reduced, the region behind the covering tightening portion 31 in the covering surrounding portion 30 is opposite to the diameter reduction direction, that is, the radial direction It deforms outward (vertically).
  • the front end portion (terminal fitting 26) of the terminal-attached conductive path 37 is inserted into the first terminal accommodation chamber 14 from the rear of the first housing 10.
  • the upper and lower retaining portions 33 are elastically deformed radially inward.
  • the terminal fitting 26 is inserted to the normal position of the first terminal accommodating chamber 14, the front end of the covering surrounding portion 30 abuts on the first front stop 17 to restrict further inserting operation of the terminal fitting 26. Be done.
  • the upper retaining portion 33 passes through the first retaining protrusion 18 and elastically returns upward, and is engaged with the left and right pair of first retaining protrusions 18. By this locking, the terminal fitting 26 is held in the retaining state.
  • the tapered contact portion 28 of the terminal fitting 26 abuts against the rear surface of the elastic conductive member 23 and is exposed on the rear surface of the elastic body 24.
  • a conductive contact is made with the rear end portions of the plurality of conductors 25.
  • the conductor 25 is also deformed as the elastic body 24 is elastically deformed, but since the plurality of conductors 25 are separately embedded in the elastic body 24 at intervals, the conductor 25 is deformed. However, there is no contact with other conductors 25. Therefore, there is no short circuit between the adjacent terminal fittings 26.
  • the male connector M includes a second housing 40 made of synthetic resin and a plurality of terminal fittings 26 (second terminal fittings described in the claims).
  • the terminal fitting 26 constituting the male connector M is the same member as the terminal fitting 26 constituting the female connector F. Therefore, the detailed description is omitted.
  • the second housing 40 is a single member having a housing body portion 41 for housing the terminal fitting 26 and a hood portion 42 extending forward in a square tube shape from the housing body portion 41.
  • a plurality of second terminal accommodation chambers 43 elongated in the front-rear direction are formed to individually face the plurality of first terminal accommodation chambers 14. That is, the plurality of second terminal accommodation chambers 43 are divided into upper and lower three stages, and arranged in parallel at a constant pitch in the left-right direction in each of the upper, middle, and lower stages.
  • the front end side area of each second terminal accommodation chamber 43 is a second small diameter accommodation portion 44 elongated in the front-rear direction.
  • the cross-sectional shape of the second small diameter housing portion 44 when cut at a right angle to the axis is circular.
  • the front end of the second small diameter housing portion 44 is open at the front surface of the housing body 41.
  • each second terminal storage chamber 43 is a second large diameter storage portion 45 coaxially connected to the rear end of the second small diameter storage portion 44.
  • the cross-sectional shape of the second large-diameter storage portion 45 when cut at a right angle to the axis is substantially circular, and more specifically, it has an oblong shape in which the upper and lower dimensions are slightly larger than the left and right dimensions.
  • the left and right dimensions of the second large diameter accommodation portion 45 are larger than the inner diameter of the second small diameter accommodation portion 44, and a second front stop 46 is formed at the front end of the second large diameter accommodation portion 45 due to this dimensional difference.
  • the rear end of the second large diameter accommodation portion 45 is open at the rear end surface of the second housing 40.
  • a pair of laterally symmetrical second retaining projections 47 in which the upper surface portion thereof protrudes radially inward (downward) are formed.
  • the first housing 10 and the second housing 40 When fitting the female connector F and the male connector M, the first housing 10 and the second housing 40 are approached so that their front surfaces face each other, and the hood portion of the second housing 40 Insert into 42.
  • the tapered contact portion 28 of the terminal fitting 26 attached to the second housing 40 is accommodated in the through hole 22 of the front holder 19 and the front end face of the elastic conductive member 23 It contacts to bite in a conductive manner, and is in conductive contact with the front end portions of the plurality of conductors 25 exposed on the front surface of the elastic body 24.
  • the conductor 25 is also deformed as the elastic body 24 is elastically deformed, but since the plurality of conductors 25 are separately embedded in the elastic body 24 at intervals, the conductor 25 is deformed. However, there is no contact with other conductors 25. Therefore, there is no short circuit between the adjacent terminal fittings 26 in the second housing 40.
  • the plurality of terminal fittings 26 attached to the first housing 10 and the plurality of terminal fittings 26 attached to the second housing 40 are the conductors 25 of the elastic conductive member 23.
  • the elastic conductive member 23 is sandwiched between the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 in parallel with the fitting direction of the two housings 10 and 40. That is, the terminal fitting 26 of the first housing 10, the elastic conductive member 23, and the terminal fitting 26 of the second housing 40 are aligned parallel to the fitting direction of the two housings 10 and 40.
  • a conductor 25 for electrically connecting the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 is embedded in an elastic body 24 elastically deformed by the biting of the two terminal fittings 26. Accordingly, the rear end portion of the conductor 25 elastically abuts against the terminal fitting 26 of the first housing 10 by the elastic restoring force of the elastic body 24, and the front end portion of the conductor 25 is the terminal fitting 26 of the second housing 40.
  • the ten terminal fittings 26 and the terminal fittings 26 of the second housing 40 are connected with high reliability through the conductor 25 (elastic conductive member 23).
  • the connector according to the first embodiment includes a first housing 10, a second housing 40 that can be fitted to the first housing 10, a terminal fitting 26 attached to the first housing 10 and the second housing 40, and an elastic conductive member 23 And have.
  • the elastic conductive member 23 is sandwiched between the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 substantially in parallel with the fitting direction of the two housings 10 and 40.
  • the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 are electrically connected via the elastic conductive member 23.
  • the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 do not have a connection form in which one terminal fitting 26 is inserted into the other terminal fitting 26. Therefore, the connector of the first embodiment can reduce the dimension in the direction (vertical direction or horizontal direction) intersecting with the fitting direction of both the housings 10 and 40.
  • the elastic conductive member 23 is held by the first housing 10 so as to face the second housing 40 by being attached to the front holder 19. Thereby, the elastic conductive member 23 and the first housing 10 can be handled integrally. Therefore, the operation when handling the elastic conductive member 23 and the first housing 10 or when fitting the two housings 10 and 40 is easy. Further, since the elastic conductive member 23 has a form in which the flexible conductor 25 is embedded in the elastic body 24, most of the conductor 25 is not exposed. Therefore, the conductor 25 can be prevented from being damaged due to the interference of other members.
  • the terminal fittings 26 of the first housing 10 and the terminal fittings 26 of the second housing 40 are arranged in parallel in the left-right direction. Focusing on this arrangement, the elastic body 24 (elastic conductive member 23) is formed into a long shape in the parallel direction of the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40, The terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 are arranged to correspond to each other. According to this configuration, the plurality of terminal fittings 26 of the first housing 10 and the plurality of terminal fittings 26 of the second housing 40 can be separately conducted by one elastic conductive member 23. Further, since the terminal fitting 26 attached to the first housing 10 and the terminal fitting 26 attached to the second housing 40 have the same shape, the number of types of parts is reduced.
  • the terminal-attached conductive path 37 of the first embodiment includes the covered electric wire 34 in which the core 35 is surrounded by the insulating coating 36, and the terminal fitting 26 connected to the front end of the covered electric wire 34.
  • the terminal fitting 26 has a cylindrical connecting portion 27 that surrounds the core wire 35 in a tightened state, and a tapered contact portion 28 is formed at the front end of the cylindrical connecting portion 27.
  • the outer surface of the tapered contact portion 28 of the terminal fitting 26 attached to the first housing 10 functions as a means for connecting to the terminal fitting 26 of the second housing 40 through the elastic conductive member 23.
  • the outer surface of the tapered contact portion 28 of the terminal fitting 26 attached to the second housing 40 functions as a means for connecting to the terminal fitting 26 of the first housing 10 through the elastic conductive member 23.
  • the cylindrical connection portion 27 has the function of fixing to the core wire 35 and the function of connecting to the elastic conductive member 23 (function to connect to the mating terminal fitting 26 through the elastic conductive member 23). Therefore, as compared with the case where these two functions are formed separately, it is possible to simplify the shape of the terminal fitting 26 of this embodiment.
  • a pair of slits 32 extending in the axial direction from the rear end of the covering surrounding portion 30, and extending in a cantilever shape along the slits 32 in a backward direction
  • a pair of retaining portions 33 expanded toward the side is formed. According to this configuration, the terminal fitting 26 inserted into the housing 10, 40 is prevented from being removed by locking the retaining portion 33 to the housing 10, 40.
  • the retaining portion 33 has a simple shape because it extends in a cantilever shape along the slit 32.
  • a covering tightening portion 31 for tightening the outer periphery of the insulating covering 36 is formed.
  • the retaining portion 33 interlocks with the diameter reduction deformation of the covering tightening portion 31 along with the tightening process. It is deformed to expand radially outward toward the rear. Therefore, the process of tightening the insulating coating 36 by the covering tightening portion 31 and the process of expanding the retaining portion 33 radially outward can be performed in one step.
  • the elastic conductive member is held by the first housing, but the elastic conductive member may be held by the second housing. Either of the first housing and the second housing may be used. It may be a form not held.
  • the elastic conductive member has a form in which a plurality of conductors are embedded in one elastic body, but the elastic conductive member may have a form in which one conductor is embedded in one elastic body. Good.
  • the elastic conductive member has a form in which a flexible conductor is embedded in an elastic body, but the elastic conductive member is a spring member (such as a disc spring or a compression coil spring) in an exposed form It is also good.
  • the terminal fitting (first terminal fitting) attached to the first housing and the terminal fitting (second terminal fitting) attached to the second housing have the same shape, but the first terminal fitting And the second terminal fitting may have different shapes.
  • only the area of the core wire from which the insulation coating has been removed is accommodated in the cylindrical connection portion of the terminal fitting, but in the cylindrical connection portion, the area not surrounded by the insulation coating And a part of the area surrounded by the insulating coating.
  • the covering enclosure is formed in the terminal fitting, the terminal fitting may not have the covering enclosure.
  • the retaining portion is formed to expand radially outward by forming a slit, but the retaining portion does not form a slit, and is cut and raised or struck. It may be formed by extrusion or the like.
  • the retaining portion is formed in the covering encircling portion, the retaining portion may be formed in a tubular connection portion.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The present invention achieves connector size reduction. This connector is provided with: a terminal fitting (26) attached to a first housing (10); a second housing (40) that can fit together with the first housing (10); a terminal fitting (26) attached to the second housing (40); and an elastic conductive member (23) that is sandwiched between the terminal fitting (26) of the first housing (10) and the terminal fitting (26) of the second housing (40), roughly in parallel with the fitting direction of the housings (10, 40). When the housings (10, 40) are fit together, the terminal fitting (26) of the first housing (10) and the terminal fitting (26) of the second housing (40) are conductively connected via the elastic conductive member (23). The terminal fitting (26) of the first housing (10) and the terminal fitting (26) of the second housing (40) are not connected by insertion of one into the interior of the other, so the dimension in a direction intersecting the fitting direction of the housings (10, 40) can be made smaller.

Description

コネクタconnector
　本発明は、コネクタに関するものである。 The present invention relates to a connector.
　特許文献１には、雌側ハウジングに取り付けた雌端子金具と、雄側ハウジングに取り付けた雄端子金具を接続するコネクタが開示されている。雌端子金具は角筒状の電気接続部を有しており、電気接続部内には弾性接触片が収容されている。両端子金具を接続する際には、雄端子金具の先端のタブを電気接続部内に挿入し、タブに対して弾性接触片を弾性的に接触させる。 Patent Document 1 discloses a connector for connecting a female terminal fitting attached to a female housing and a male terminal fitting attached to a male housing. The female terminal fitting has a rectangular cylindrical electrical connection portion, and the elastic contact piece is accommodated in the electrical connection portion. When connecting both terminal fittings, the tab at the tip of the male terminal fitting is inserted into the electrical connection portion, and the resilient contact piece is elastically brought into contact with the tab.
特開２０１６－２２５２２２号公報JP, 2016-225222, A
　上記のコネクタでは、電気接続部の内部に弾性接触片とタブが収容されるので、弾性接触片の弾性変形方向において電気接続部の寸法が大きくなる。そのため、コネクタを小型化することには限界がある。第１の発明は上記事情を勘案して完成されたものであって、小型化を図ることを目的とする。 In the above connector, since the resilient contact piece and the tab are accommodated inside the electrical connection portion, the size of the electrical connection portion increases in the elastic deformation direction of the resilient contact piece. Therefore, there is a limit to miniaturizing the connector. The first invention has been completed in consideration of the above circumstances, and has an object to miniaturize it.
　また、上記のコネクタを構成する雌端子金具と雄端子金具は、電線の端末部に接続されるのであるが、電線を接続するための圧着部と、相手側端子金具に接続される端子接続部とが、別々の部位として形成されているため、構造が複雑である。第２及び第３の発明は上記事情を勘案して完成されたものであって、形状の簡素化を図ることを目的とする。 In addition, although the female terminal fitting and the male terminal fitting that constitute the above connector are connected to the end of the electric wire, the crimped portion for connecting the electric wire and the terminal connection portion connected to the mating terminal metal fitting And are formed as separate sites, so the structure is complicated. The second and third inventions are completed in consideration of the above circumstances, and their object is to simplify the shape.
　第１の発明のコネクタは、
　第１ハウジングと、
　前記第１ハウジングに取り付けた第１端子金具と、
　前記第１ハウジングと嵌合可能な第２ハウジングと、
　前記第２ハウジングに取り付けた第２端子金具と、
　前記第１端子金具と前記第２端子金具との間で、前記第１ハウジングと前記第２ハウジングの嵌合方向と略平行に挟まれる弾性導電部材とを備えていることを特徴とする。 The connector of the first invention is
A first housing,
A first terminal fitting attached to the first housing;
A second housing mateable with the first housing;
A second terminal fitting attached to the second housing;
An elastic conductive member is provided between the first terminal fitting and the second terminal fitting, the elastic conductive member being substantially parallel to the fitting direction of the first housing and the second housing.
　第２の発明の端子付き導電路は、
　芯線を絶縁被覆で包囲した被覆電線と、前記被覆電線の前端部に接続された端子金具とを備え、
　前記端子金具は、前記芯線を締付け状態で包囲し、外面が相手側端子との接続手段として機能する筒状接続部を有していることを特徴とする。 The conductive path with a terminal of the second invention is
A covered electric wire in which a core wire is surrounded by an insulation coating, and a terminal fitting connected to the front end of the covered electric wire;
The terminal fitting is characterized in that the terminal fitting encloses the core wire in a tightened state, and the outer surface has a tubular connection portion that functions as a connection means with a mating terminal.
　第３の発明の端子金具は、
　芯線を絶縁被覆で包囲した被覆電線の前端部に接続されることで端子付き導電路を構成する端子金具であって、
　前記芯線を締付け状態で包囲し、外面が相手側端子との接続手段として機能する筒状接続部を有していることを特徴とする。 The terminal fitting of the third invention is
A terminal fitting that constitutes a conductive path with a terminal by being connected to the front end of a coated wire in which a core wire is surrounded by an insulating coating,
It is characterized in that the core wire is enclosed in a tightened state, and the outer surface has a cylindrical connection portion that functions as a connection means with the opposite terminal.
　第１の発明によれば、第１ハウジングと第２ハウジングを嵌合すると、第１端子金具と第２端子金具は弾性導電部材を介して導通可能に接続される。第１端子金具と第２端子金具は、一方を他方の内部に挿入する接続形態とはならないので、両ハウジングの嵌合方向と交差する方向の寸法を小さくできる。
　また、第２及び第３の発明によれば、筒状接続部が、芯線に固着する機能と、相手側端子に接続する機能とを兼ね備えているので、端子金具の形状を簡素化することができる。 According to the first invention, when the first housing and the second housing are fitted, the first terminal fitting and the second terminal fitting are electrically connected via the elastic conductive member. The first terminal fitting and the second terminal fitting do not have a connection form in which one is inserted into the other, so the dimension in the direction intersecting with the fitting direction of both housings can be reduced.
Further, according to the second and third inventions, since the cylindrical connection portion has both the function of adhering to the core wire and the function of connecting to the mating terminal, the shape of the terminal fitting can be simplified. it can.
実施例１のコネクタの分解状態をあらわす斜視図The perspective view showing the disassembled state of the connector of Example 1 雌側コネクタの側断面図Side cross section of female connector 雄側コネクタの側断面図Side cross section of male connector 雌側コネクタと雄側コネクタの嵌合状態をあらわす側断面図Side sectional view showing the fitted state of the female connector and the male connector 第１コネクタの分解状態をあらわす側断面図Side sectional view showing the disassembled state of the first connector 第１ハウジングの正面図Front view of the first housing 第１ハウジングの背面図Rear view of the first housing 第１ハウジングの部分拡大背面図Partially enlarged rear view of the first housing 第１ハウジングに端子金具を挿入した状態をあらわす部分拡大背面図Partially enlarged rear view showing a state in which the terminal fitting is inserted into the first housing 第２ハウジングの側断面図Side sectional view of the second housing 第２ハウジングの背面図Rear view of the second housing フロントホルダ背面図Front holder rear view 弾性導電部材の部分拡大正面図Partially enlarged front view of elastic conductive member 図１３のＸ－Ｘ線断面図XX sectional view of FIG. 13 端子金具を被覆電線に接続した状態をあらわす側面図Side view showing the terminal fitting connected to the coated wire 端子金具を被覆電線に接続した状態をあらわす正面図Front view showing the terminal fitting connected to the coated wire 図１５のＹ－Ｙ線断面図The YY sectional view of FIG. 15 端子金具を被覆電線に接続した状態をあらわす側断面図Side sectional view showing a state in which the terminal fitting is connected to the coated wire 端子金具の成形前の状態をあらわす側面図Side view showing the state before molding of the terminal fitting 端子金具の成形前の状態をあらわす背面図Rear view showing the condition before molding of the terminal fitting 被覆電線を接続せずに端子金具の筒状接続部を形成した状態をあらわす側面図Side view showing a state in which the cylindrical connection portion of the terminal fitting is formed without connecting the coated wire
　第１の発明は、請求項２に記載のように、前記弾性導電部材が前記第２ハウジングと対向するように前記第１ハウジングに保持されていてもよい。この構成によれば、弾性導電部材を第１ハウジングと一体的に取り扱うことができるで、取り扱いや両ハウジングの嵌合作業が容易である。 According to a first aspect of the present invention, the elastic conductive member may be held by the first housing so as to face the second housing. According to this configuration, since the elastic conductive member can be handled integrally with the first housing, handling and fitting work of both the housings are easy.
　第１の発明は、請求項３に記載のように、前記弾性導電部材は、可撓性を有する導体を弾性体内に埋設した形態であってもよい。この構成によれば、導体が剥き出しにならないので、他部材の干渉に起因する導体の破損等を防止できる。 In a first invention according to the third aspect, the elastic conductive member may have a form in which a flexible conductor is embedded in an elastic body. According to this configuration, since the conductor is not exposed, it is possible to prevent damage or the like of the conductor due to the interference of other members.
　第１の発明は、請求項４に記載のように、前記第１端子金具と前記第２端子金具が複数ずつ並列配置されており、前記弾性体は、前記第１端子金具及び前記第２端子金具の並列方向に長い形状であり、複数の前記導体が、複数の前記第１端子金具及び複数の前記第２端子金具と対応して並ぶように配されていてもよい。この構成によれば、１つの弾性導電部材によって複数の第１端子金具と複数の第２端子金具を個別に導通させることができる。 According to a first aspect of the present invention, as described in claim 4, the plurality of first terminal fittings and the plurality of second terminal fittings are arranged in parallel, and the elastic body includes the first terminal fittings and the second terminals. The plurality of conductors may be arranged to correspond to the plurality of first terminal fittings and the plurality of second terminal fittings in a shape elongated in the parallel direction of the metal fittings. According to this configuration, the plurality of first terminal fittings and the plurality of second terminal fittings can be conducted separately by one elastic conductive member.
　第１の発明は、請求項５に記載のように、前記第１端子金具と前記第２端子金具が同一形状であってもよい。この構成によれば、部品の種類数を減らすことができる。 In the first invention, as described in claim 5, the first terminal fitting and the second terminal fitting may have the same shape. According to this configuration, the number of types of parts can be reduced.
　第１の発明は、請求項６に記載のように、前記第１端子金具と前記第２端子金具は、芯線を絶縁被覆で包囲した被覆電線の前端部に接続されており、前記第１端子金具及び前記第２端子金具には、前記芯線を締付け状態で包囲し、外面が前記弾性導電部材との接続手段として機能する筒状接続部が形成されていてもよい。この構成によれば、筒状接続部が、芯線に固着する機能と、弾性導電部材に接続する機能とを兼ね備えているので、第１端子金具及び第２端子金具の形状を簡素化することができる。 According to a first aspect of the present invention, the first terminal fitting and the second terminal fitting are connected to a front end portion of a covered electric wire in which a core wire is surrounded by an insulation coating. In the metal fitting and the second terminal metal fitting, a cylindrical connection portion may be formed which surrounds the core wire in a tightened state and whose outer surface functions as a connection means with the elastic conductive member. According to this configuration, since the cylindrical connection portion has both the function of fixing to the core wire and the function of connecting to the elastic conductive member, the shapes of the first terminal fitting and the second terminal fitting can be simplified. it can.
　（ａ）第２及び第３の発明は、前記筒状接続部内には、前記芯線のうち前記絶縁被覆を除去した領域のみが収容されていてもよい。この構成によれば、筒状接続部の外径を小さくすることができる。 (A) In the second and third inventions, only the region of the core wire from which the insulating coating is removed may be accommodated in the cylindrical connection portion. According to this configuration, the outer diameter of the tubular connection portion can be reduced.
　（ｂ）第２及び第３の発明は、前記筒状接続部の後端に連なり、前記被覆電線のうち前記絶縁被覆が前記芯線を包囲する領域を締付け状態で包囲する被覆包囲部を備えていてもよい。この構成によれば、被覆電線と端子金具が、筒状接続部と被覆包囲部の両方において締付け状態で固着されるので、被覆電線と端子金具との固着強度が高い。 (B) The second and third inventions are provided with a coating surrounding portion connected to the rear end of the cylindrical connection portion and surrounding the region of the coated electric wire in which the insulating coating surrounds the core wire in a tightened state May be According to this configuration, since the coated wire and the terminal fitting are fixed in a tightened state at both the tubular connection portion and the coating surrounding portion, the bonding strength between the coated wire and the terminal fitting is high.
　（ｃ）第２及び第３の発明は、（ｂ）において、前記被覆包囲部には、前記被覆包囲部の後端から軸線方向前方へ延びる一対のスリットと、前記スリットに沿うように後方へ片持ち状に延出し且つ後方に向かうほど径方向外方へ拡がった一対の抜止め部とが形成されていてもよい。この構成によれば、ハウジングに挿入した端子金具は、抜止め部をハウジングに係止させることによって抜止めされる。抜止め部は、スリットに沿うように片持ち状に延出した形態なので、形状がシンプルである。 (C) In the second and third inventions, in (b), the covering surrounding portion includes a pair of slits extending axially forward from the rear end of the covering surrounding portion, and aft along the slits. A pair of retaining portions may be formed extending in a cantilever shape and expanding radially outward toward the rear. According to this configuration, the terminal fitting inserted into the housing is retained by locking the retaining portion to the housing. The retaining portion has a simple shape because it extends in a cantilever shape along the slit.
　（ｄ）第２及び第３の発明は、（ｃ）において、前記被覆包囲部のうち前記抜止め部より前方の領域には、前記絶縁被覆の外周を締め付ける被覆締付部が形成されていてもよい。この構成によれば、被覆締付部を縮径変形させて絶縁被覆の外周を締め付け加工すると、被覆締付部の縮径変形に連動して、抜止め部が後方に向かうほど径方向外方へ拡がるように変形する。したがって、絶縁被覆を被覆締付部で締め付ける加工と、抜止め部を径方向外方へ拡げる加工とを、１工程で行うことができる。 (D) In the second and third inventions, in (c), a covering fastening part for fastening the outer periphery of the insulating covering is formed in a region on the front side of the retaining part in the covering surrounding part It is also good. According to this configuration, when the diameter of the covering tightening portion is reduced and the outer periphery of the insulation coating is tightened, the diameter of the outer side of the covering tightening portion moves radially outward as the locking portion moves rearward. It is deformed to extend to Therefore, the process of tightening the insulating coating at the coating tightening portion and the process of expanding the retaining portion radially outward can be performed in one step.
　＜実施例１＞
　以下、本発明を具体化した実施例１を図１～図２１を参照して説明する。本実施例のコネクタは、互いに嵌合・離脱が可能な雌側コネクタＦと雄側コネクタＭとを備えている。尚、以下の説明において、雌側コネクタＦの前後の方向については、図２，４，５における右方を前方と定義し、雄側コネクタＭの前後の方向については、図３，４，１０における左方を前方と定義する。上下の方向については、図１～１２，１５～２１にあらわれる向きを、そのまま上方、下方と定義する。左右の方向については、図６～９，１１～１４，１６，１７，２０にあらわれる向きを、そのまま左方、右方と定義する。 Example 1
A first embodiment of the present invention will be described below with reference to FIGS. 1 to 21. The connector of the present embodiment includes a female connector F and a male connector M which can be fitted and separated from each other. In the following description, regarding the front and back direction of the female connector F, the right side in FIGS. 2, 4 and 5 is defined as the front, and for the front and back direction of the male connector M, FIGS. We define the left side in as the front. With regard to the upper and lower directions, the directions appearing in FIGS. 1 to 12 and 15 to 21 are defined as upper and lower as they are. Regarding the left and right directions, the directions appearing in FIGS. 6-9, 11-14, 16, 17, 20 are defined as left and right as they are.
　雌側コネクタＦは、合成樹脂製の第１ハウジング１０と、１つのフロントホルダ１９と、複数（本実施例では３つ）の弾性導電部材２３と、複数の端子金具２６（請求項に記載の第１端子金具）とを備えて構成されている。 The female connector F includes a first housing 10 made of synthetic resin, one front holder 19, a plurality of (three in this embodiment) elastic conductive members 23, and a plurality of terminal fittings 26 (claims) And the first terminal fitting).
　第１ハウジング１０には、その前端面（両コネクタＦ，Ｍが嵌合するときに第２ハウジング４０と対向する面）を凹ませた形態の収容凹部１１が形成されている。収容凹部１１の左右両内側面には、上下方向（両ハウジング１０，４０の嵌合方向と直交する方向）に延びる一対のガイド溝１２が形成されている。ガイド溝１２は、第１ハウジング１０の下面に開放されている。両ガイド溝１２の上下方向略中央部には、第１ハウジング１０の外側面に開口する係止孔１３が形成されている。 The first housing 10 is formed with a housing recess 11 in which the front end surface (the surface facing the second housing 40 when the two connectors F and M are fitted) is recessed. A pair of guide grooves 12 extending in the vertical direction (a direction orthogonal to the fitting direction of the two housings 10 and 40) is formed on both left and right inner side surfaces of the housing recess 11. The guide groove 12 is open to the lower surface of the first housing 10. A locking hole 13 opened in the outer side surface of the first housing 10 is formed in a substantially central portion in the vertical direction of the two guide grooves 12.
　第１ハウジング１０の内部には、前後方向に細長い複数の第１端子収容室１４が上下３段に分かれて形成されている。上中下の各段において、複数の第１端子収容室１４が左右方向に一定ピッチで並列して配置されている。各第１端子収容室１４の前端側領域は、前後方向に細長い第１小径収容部１５となっている。第１小径収容部１５の軸線と直角に切断したときの断面形状は、円形である。第１小径収容部１５の前端は収容凹部１１に開口している。 Inside the first housing 10, a plurality of first terminal accommodation chambers 14 elongated in the front-rear direction are formed in upper and lower three stages. In each of the upper, middle, and lower stages, the plurality of first terminal accommodation chambers 14 are arranged in parallel at a constant pitch in the left-right direction. The front end side area of each first terminal accommodating chamber 14 is a first small diameter accommodating portion 15 which is elongated in the front-rear direction. The cross-sectional shape of the first small diameter housing portion 15 when cut at a right angle to the axis is circular. The front end of the first small diameter housing portion 15 is open to the housing recess 11.
　各第１端子収容室１４の後端側領域は、第１小径収容部１５の後端に同軸状に連なった第１大径収容部１６となっている。第１大径収容部１６の軸線と直角に切断したときの断面形状は、概ね円形であり、詳細には上下寸法が左右寸法より僅かに大きい長円形をなしている。第１大径収容部１６の左右寸法は第１小径収容部１５の内径よりも大きく、この寸法差により、第１大径収容部１６の前端部には第１前止まり部１７が形成されている。第１大径収容部１６の後端は、第１ハウジング１０の後端面に開口している。第１大径収容部１６の後端部内周には、その上面部を径方向内側（下方）へ突出させた形態の左右対称な一対の第１抜止め突起１８が形成されている。 The rear end side region of each first terminal storage chamber 14 is a first large diameter storage portion 16 coaxially connected to the rear end of the first small diameter storage portion 15. The cross-sectional shape of the first large-diameter storage portion 16 when cut at a right angle to the axis is generally circular, and more specifically, it has an oblong shape in which the upper and lower dimensions are slightly larger than the left and right dimensions. The left and right dimensions of the first large diameter accommodation portion 16 are larger than the inner diameter of the first small diameter accommodation portion 15. Due to this dimensional difference, the first front stop 17 is formed at the front end of the first large diameter accommodation portion 16. There is. The rear end of the first large diameter accommodation portion 16 is open at the rear end surface of the first housing 10. On the inner periphery of the rear end portion of the first large diameter accommodation portion 16, a pair of left and right symmetrical first retaining projections 18 in which the upper surface portion thereof protrudes radially inward (downward) are formed.
　フロントホルダ１９は、合成樹脂製であり、全体として板厚方向を前後方向に向けた平板状をなす。フロントホルダ１９の左右両側縁部には、左右一対の係止突起２０が形成されている。フロントホルダ１９は、第１ハウジング１０の下方から収容凹部１１内に取り付けられている。取り付けに際しては、フロントホルダ１９の左右両側縁部をガイド溝１２に嵌合し、フロントホルダ１９をスライドさせて収容凹部１１に収容する。正規の位置に収容されると、係止突起２０が係止孔１３に嵌合して係止することにより、フロントホルダ１９は第１ハウジング１０の前面部に位置決めされた状態で保持される。 The front holder 19 is made of synthetic resin, and as a whole, has a flat plate shape in which the thickness direction is in the front-rear direction. A pair of left and right locking projections 20 are formed on left and right side edge portions of the front holder 19. The front holder 19 is attached to the inside of the housing recess 11 from below the first housing 10. At the time of attachment, the left and right side edge portions of the front holder 19 are fitted in the guide grooves 12 and the front holder 19 is slid and accommodated in the accommodation recess 11. When housed in the proper position, the front holder 19 is held in a positioned state on the front surface of the first housing 10 by the locking projection 20 being fitted and locked in the locking hole 13.
　フロントホルダ１９の後面には、左右方向に長い３本の保持溝２１が、上下３段に分かれて並列するように形成されている。上中下の各段の保持溝２１は、夫々、上中下の各段の第１端子収容室１４と対応する高さに配されている。フロントホルダ１９には、複数の第１端子収容室１４と個別に対応する複数の貫通孔２２が形成されている。複数の貫通孔２２は、上中下の３段に分かれ、上中下のうち対応する保持溝２１に配されている。各貫通孔２２は、フロントホルダ１９を前後方向に貫通している。貫通孔２２の開口形状（断面形状）は円形であり、貫通孔２２の内径は、第１小径収容部１５の内径と同じか、それよりも僅かに小さい寸法である。 On the rear surface of the front holder 19, three holding grooves 21 long in the left-right direction are formed so as to be divided into upper and lower three stages and arranged in parallel. The holding grooves 21 of the upper, middle, and lower stages are disposed at the heights corresponding to the first terminal receiving chambers 14 of the upper, middle, and lower stages, respectively. The front holder 19 is formed with a plurality of through holes 22 individually corresponding to the plurality of first terminal accommodation chambers 14. The plurality of through holes 22 are divided into upper, middle, and lower three stages, and are arranged in the corresponding holding grooves 21 among the upper, middle, and lower. Each through hole 22 penetrates the front holder 19 in the front-rear direction. The opening shape (cross-sectional shape) of the through hole 22 is circular, and the inner diameter of the through hole 22 is equal to or slightly smaller than the inner diameter of the first small diameter accommodating portion 15.
　弾性導電部材２３は、シリコンゴム等の弾性変形が可能な弾性体２４と、弾性体２４内に埋設した複数本の導体２５とを一体化した単一部材である。弾性導電部材２３及び弾性体２４は、左右方向に細長い角柱状をなしており、フロントホルダ１９の保持溝２１内に収容されて位置決めされた状態で嵌合している。導体２５は、細長い金属線材からなり、長さ方向と交差する方向へ自在に湾曲変形し得る可撓性を有している。導体２５の材料としては、金メッキ処理を施した真鍮等を用いることができる。 The elastic conductive member 23 is a single member in which an elastic body 24 such as silicone rubber capable of elastic deformation and a plurality of conductors 25 embedded in the elastic body 24 are integrated. The elastic conductive member 23 and the elastic body 24 have a rectangular columnar shape elongated in the left-right direction, and are fitted in the holding groove 21 of the front holder 19 so as to be positioned. The conductor 25 is made of an elongated metal wire, and has flexibility such that it can be bent and deformed freely in the direction intersecting the length direction. As a material of the conductor 25, it is possible to use a gold-plated brass or the like.
　導体２５は前後方向（両ハウジング１０，４０の嵌合方向と平行な方向）に直線状に延びた向きで弾性体２４内に埋設されている。弾性導電部材２３を前面及び後面から視ると、複数の導体２５が上下左右に所定ピッチで間隔を空けて配置されている。隣り合う導体２５のピッチは、後述する端子金具２６の筒状接続部２７の最小外径よりも小さい寸法に設定されている。導体２５の前端部は、弾性体２４の前面において僅かに突出した状態で露出している。１つの貫通孔２２には、複数本の導体２５の前端部が配されている。導体２５の後端部は、弾性体２４の後面において僅かに突出した状態で露出している。弾性体２４が弾性変形すると、導体２５は断線することなく弾性体２４に追従して変形するようになっている。 The conductor 25 is embedded in the elastic body 24 so as to extend linearly in the front-rear direction (the direction parallel to the fitting direction of the two housings 10 and 40). When the elastic conductive member 23 is viewed from the front and rear, the plurality of conductors 25 are arranged at predetermined pitches in the vertical and horizontal directions. The pitch of the adjacent conductors 25 is set to be smaller than the minimum outer diameter of the cylindrical connection portion 27 of the terminal fitting 26 described later. The front end portion of the conductor 25 is exposed in a slightly projecting state on the front surface of the elastic body 24. The front end portions of the plurality of conductors 25 are disposed in one through hole 22. The rear end portion of the conductor 25 is exposed in the state of slightly projecting on the rear surface of the elastic body 24. When the elastic body 24 is elastically deformed, the conductor 25 follows the elastic body 24 and is deformed without disconnection.
　端子金具２６は、金属製の筒状部材にプレス加工やカシメ付け加工等を施すことで、全体として軸線を前後方向に向けた略円筒形に成形されたものである。端子金具２６を成形する過程では、端子金具２６が被覆電線３４の前端部に導通可能に固着される。被覆電線３４は導電性を有する芯線３５を絶縁被覆３６で包囲した周知形態のものである。被覆電線３４の前端部においては、絶縁被覆３６の前端部が除去されて芯線３５の前端部が露出した状態となっている。被覆電線３４の前端部に端子金具２６を接続することで、端子付き導電路３７が構成されている。 The terminal fitting 26 is formed into a substantially cylindrical shape whose axis is directed in the front-rear direction as a whole by subjecting a cylindrical member made of metal to pressing, caulking, or the like. In the process of forming the terminal fitting 26, the terminal fitting 26 is conductively fixed to the front end portion of the coated wire 34. The coated wire 34 has a known form in which a conductive core wire 35 is surrounded by an insulating coating 36. At the front end of the coated wire 34, the front end of the insulating coating 36 is removed, and the front end of the core wire 35 is exposed. By connecting the terminal fitting 26 to the front end portion of the coated wire 34, a terminal-attached conductive path 37 is configured.
　端子金具２６は、その前端側領域を構成する筒状接続部２７と、後端側領域を構成する被覆包囲部３０とから構成され、全体として概ね円筒状をなす単一部材である。筒状接続部２７の最大外径は、第１小径収容部１５の内径と同じか、それよりも僅かに小さい寸法である。筒状接続部２７の最前端部には、前方に向かって縮径した形態のテーパ状接触部２８が形成されている。筒状接続部２７のうちテーパ状接触部２８より後方の長い領域には、縮径するようにカシメ変形させた芯線締付部２９が形成されている。 The terminal fitting 26 is a unitary member having a substantially cylindrical shape as a whole, including a cylindrical connection portion 27 constituting the front end side area and a covering surrounding portion 30 constituting the rear end side area. The maximum outer diameter of the cylindrical connection portion 27 is equal to or slightly smaller than the inner diameter of the first small diameter housing portion 15. A tapered contact portion 28 in the form of a diameter reduced toward the front is formed at the foremost end of the cylindrical connection portion 27. A core wire tightening portion 29 which is crimped so as to reduce in diameter is formed in a long region of the cylindrical connection portion 27 on the rear side of the tapered contact portion 28.
　被覆包囲部３０は、筒状接続部２７の後端に同軸状に連なっている。被覆包囲部３０の最小外径は筒状接続部２７の最大外径よりも大きい寸法とされている。被覆包囲部３０のうち前端側領域は、被覆締付部３１となっている。被覆包囲部３０のうち被覆締付部３１より後方の領域には、左右対称な一対のスリット３２が形成されている。スリット３２は、端子金具２６（被覆包囲部３０）の後端から前方へ軸線方向に延びるように切欠された形態である。 The covering surrounding portion 30 is coaxially connected to the rear end of the cylindrical connection portion 27. The minimum outer diameter of the covering portion 30 is larger than the maximum outer diameter of the cylindrical connection portion 27. A front end side area of the covering surrounding portion 30 is a covering tightening portion 31. A pair of left and right symmetrical slits 32 are formed in a region of the covering surrounding portion 30 behind the covering tightening portion 31. The slits 32 are notched so as to extend in the axial direction forward from the rear end of the terminal fitting 26 (cover surrounding portion 30).
　被覆包囲部３０のうち被覆締付部３１より後方の領域には、上下対称な一対の抜止め部３３が形成されている。一対の抜止め部３３は、後方へ片持ち状に延出した形態であり、後方に向かって径方向外方（上方又は下方）へ僅かに拡がっている。つまり、抜止め部３３は、端子金具２６の軸線に対して斜めをなしている。抜止め部３３は、その前端部を支点として上下方向に弾性変形し得るようになっている。被覆包囲部３０のうち被覆締付部３１より後方の領域は、一対のスリット３２と一対の抜止め部３３が周方向に交互に配された形態となっている。 A vertically symmetrical pair of retaining portions 33 is formed in a region of the covering surrounding portion 30 behind the covering tightening portion 31. The pair of retaining portions 33 is cantilevered rearward, and slightly extends radially outward (upward or downward) rearward. That is, the retaining portion 33 is oblique to the axis of the terminal fitting 26. The retaining portion 33 can be elastically deformed in the vertical direction with the front end portion as a fulcrum. The region of the covering surrounding portion 30 behind the covering tightening portion 31 has a configuration in which a pair of slits 32 and a pair of retaining portions 33 are alternately arranged in the circumferential direction.
　被覆包囲部３０のうち被覆締付部３１、スリット３２及び抜止め部３３が形成されていない領域の外径は、第１大径収容部１６の左右寸法と同じか、それよりも僅かに小さい寸法に設定されている。また、被覆包囲部３０の最大上下寸法（一対の抜止め部３３の後端同士の距離）は、第１大径収容部１６の上下寸法より大きい寸法に設定されている。 The outer diameter of the region of the covering surrounding portion 30 where the covering tightening portion 31, the slit 32, and the retaining portion 33 are not formed is the same as or slightly smaller than the left-right dimension of the first large diameter accommodation portion 16. It is set to the dimensions. Further, the maximum upper and lower dimensions (the distance between the rear ends of the pair of retaining portions 33) of the covering surrounding portion 30 are set to be larger than the upper and lower dimensions of the first large diameter accommodation portion 16.
　次に、端子付き導電路３７の製造方法を説明する。この製造方法においては、電線挿入工程と縮径工程と締付工程が実行される。電線挿入工程では、端子金具２６の成形素材３８に被覆電線３４の前端部が挿入される。成形素材３８は、図１９に示すように、全体として円筒形をなす。成形素材３８の後端部には、成形素材３８の後端縁から前方へ軸線と平行に切欠した形態の左右一対のスリット３２が形成されている。軸線方向におけるスリット３２形成領域は、成形素材３８の全長の概ね１／４に亘る範囲である。 Next, a method of manufacturing the terminal-equipped conductive path 37 will be described. In this manufacturing method, a wire insertion step, a diameter reduction step and a tightening step are performed. In the wire insertion step, the front end portion of the covered wire 34 is inserted into the forming material 38 of the terminal fitting 26. The molding material 38 has a generally cylindrical shape as shown in FIG. A pair of left and right slits 32 are formed in the rear end portion of the forming material 38 so as to be cut in parallel with the axis from the rear end edge of the forming material 38 forward. The area in which the slits 32 are formed in the axial direction is a range covering approximately 1⁄4 of the entire length of the molding material 38.
　電線挿入工程では、成形素材３８に対し後方から被覆電線３４の前端部が挿入される。被覆電線３４を挿入した状態では、芯線３５のうち絶縁被覆３６が除去されて露出している領域が、成形素材３８の概ね前端側領域内に収容される。詳細には、芯線３５の露出領域の前端は、縮径工程で形成される筒状接続部２７の前端（テーパ状接触部２８）より少し後方に位置する。芯線３５の露出領域の後端（絶縁被覆３６の前端）は、筒状接続部２７の後端より少し後方に位置する。したがって、筒状接続部２７には、芯線３５のうち絶縁被覆３６が除去された露出領域のみが収容される。筒状接続部２７が形成される前の状態の成形素材３８の内径は、芯線３５の外径より大きい。縮径工程で形成される被覆包囲部３０内には、芯線３５の露出領域の後端部と、絶縁被覆３６の前端部とが収容される。絶縁被覆３６の外径は被覆包囲部３０の内径と同じか、それよりも僅かに小さい寸法である。 In the wire insertion step, the front end portion of the covered wire 34 is inserted from the rear into the forming material 38. When the coated wire 34 is inserted, the area of the core wire 35 from which the insulation coating 36 is removed and exposed is accommodated in the area on the front end side of the molding material 38. Specifically, the front end of the exposed area of the core wire 35 is located slightly behind the front end (the tapered contact portion 28) of the cylindrical connection portion 27 formed in the diameter reduction step. The rear end (the front end of the insulating coating 36) of the exposed area of the core wire 35 is located slightly behind the rear end of the cylindrical connection portion 27. Therefore, only the exposed region of the core wire 35 from which the insulating coating 36 is removed is accommodated in the cylindrical connection portion 27. The inner diameter of the molding material 38 in the state before the tubular connection portion 27 is formed is larger than the outer diameter of the core wire 35. The rear end portion of the exposed area of the core wire 35 and the front end portion of the insulating coating 36 are accommodated in the coating surrounding portion 30 formed in the diameter reducing step. The outer diameter of the insulating coating 36 is equal to or slightly smaller than the inner diameter of the coating surrounding portion 30.
　電線挿入工程の後、成形素材３８に対して縮径工程が実行される。縮径工程では、成形素材３８の概ね前端側領域が縮径変形するように塑性変形させられる。この縮径工程により、筒状接続部２７とテーパ状接触部２８が成形されると同時に、筒状接続部２７が芯線３５の露出領域の外周にカシメ付けられる。この縮径工程では、筒状接続部２７のうちテーパ状接触部２８の後端より少し後方の位置と、筒状接続部２７の後端より少し前方の位置との間の領域が、更に縮径するように塑性変形させられ、芯線締付部２９が形成される。芯線締付部２９は、芯線３５の外周に対し更に強くカシメ付けられる。これにより、筒状接続部２７（成形素材３８）と芯線３５とが導通可能に且つ軸線方向及び周方向への相対変位を規制された状態に固着される。 After the wire insertion process, a diameter reduction process is performed on the forming material 38. In the diameter reduction step, the front end side area of the forming material 38 is plastically deformed so as to be reduced in diameter. At the same time as the cylindrical connecting portion 27 and the tapered contact portion 28 are formed by this diameter reducing step, the cylindrical connecting portion 27 is crimped to the outer periphery of the exposed area of the core wire 35. In this diameter reduction step, the region between the position slightly behind the rear end of the tapered contact portion 28 in the cylindrical connection portion 27 and the position slightly forward of the rear end of the cylindrical connection portion 27 is further contracted It is plastically deformed to form a core tightening portion 29. The core wire tightening portion 29 is further strongly crimped to the outer periphery of the core wire 35. As a result, the cylindrical connection portion 27 (the molding material 38) and the core wire 35 can be electrically connected, and fixed in a state in which the relative displacement in the axial direction and the circumferential direction is restricted.
　縮径工程の後、成形素材３８に対して締付工程が実行される。締付工程では、被覆包囲部３０の一部が縮径変形させられることで、被覆締付部３１が形成される。被覆締付部３１の形成領域は、被覆包囲部３０の前端より少し後方の位置から、スリット３２の前端より少し前方の位置に至る範囲である。被覆締付部３１は、被覆電線３４のうち絶縁被覆３６の前端部の外周に対し強くカシメ付けられる。これにより、被覆締付部３１（成形素材３８）と絶縁被覆３６とが軸線方向及び周方向への相対変位を規制された状態に固着される。 After the diameter reducing step, a tightening step is performed on the forming material 38. In the tightening process, a diameter of a part of the coating surrounding portion 30 is deformed to form the covering tightening portion 31. The formation area of the covering tightening portion 31 ranges from a position slightly behind the front end of the covering surrounding portion 30 to a position slightly ahead of the front end of the slit 32. The coated fastening portion 31 is strongly crimped to the outer periphery of the front end portion of the insulating coating 36 in the coated electric wire 34. As a result, the covering tightening portion 31 (forming material 38) and the insulating covering 36 are fixed in a state in which the relative displacement in the axial direction and the circumferential direction is restricted.
　また、被覆包囲部３０に被覆締付部３１を形成すると同時に、上下一対の抜止め部３３が形成される。被覆締付部３１を形成する前の状態では、成形素材３８のうち前後方向においてスリット３２と対応する領域は、成形素材３８の軸線と概ね平行をなす。被覆締付部３１の形成領域は、スリット３２より前方であり且つスリット３２の前端の近傍である。したがって、被覆包囲部３０のうち被覆締付部３１の形成領域を縮径変形させると、被覆包囲部３０のうち被覆締付部３１より後方の領域が縮径方向と反対側、即ち、径方向外方（上下方向）へ変形する。これにより、後方に向かって径方向外方へ拡がるように傾斜した上下一対の抜止め部３３が形成される。以上により、端子金具２６の成形が完了すると同時に、端子金具２６と被覆電線３４の接続が完了し、端子付き導電路３７が製造される。 At the same time as forming the covering tightening portion 31 in the covering surrounding portion 30, a pair of upper and lower retaining portions 33 is formed. In a state before forming the covering tightening portion 31, the region of the forming material 38 corresponding to the slit 32 in the front-rear direction is substantially parallel to the axis of the forming material 38. The formation area of the covering tightening portion 31 is in front of the slit 32 and in the vicinity of the front end of the slit 32. Therefore, when the diameter of the formation region of the covering tightening portion 31 in the covering surrounding portion 30 is reduced, the region behind the covering tightening portion 31 in the covering surrounding portion 30 is opposite to the diameter reduction direction, that is, the radial direction It deforms outward (vertically). As a result, a pair of upper and lower retaining portions 33 inclined so as to expand radially outward toward the rear is formed. As described above, at the same time when the formation of the terminal fitting 26 is completed, the connection between the terminal fitting 26 and the coated wire 34 is completed, and the terminal-attached conductive path 37 is manufactured.
　端子付き導電路３７の前端部（端子金具２６）は、第１ハウジング１０の後方から第１端子収容室１４に挿入される。挿入過程の終盤では上下両抜止め部３３が径方向内方へ弾性変形させられる。端子金具２６が第１端子収容室１４の正規位置まで挿入されると、被覆包囲部３０の前端部が第１前止まり部１７に当接することにより、端子金具２６のそれ以上の挿入動作が規制される。これと同時に、上側の抜止め部３３が、第１抜止め突起１８を通過し終わって上方へ弾性復帰し、左右一対の第１抜止め突起１８に係止する。この係止により、端子金具２６は抜止め状態に保持される。 The front end portion (terminal fitting 26) of the terminal-attached conductive path 37 is inserted into the first terminal accommodation chamber 14 from the rear of the first housing 10. At the end of the insertion process, the upper and lower retaining portions 33 are elastically deformed radially inward. When the terminal fitting 26 is inserted to the normal position of the first terminal accommodating chamber 14, the front end of the covering surrounding portion 30 abuts on the first front stop 17 to restrict further inserting operation of the terminal fitting 26. Be done. At the same time, the upper retaining portion 33 passes through the first retaining protrusion 18 and elastically returns upward, and is engaged with the left and right pair of first retaining protrusions 18. By this locking, the terminal fitting 26 is held in the retaining state.
　第１端子収容室１４に端子金具２６が正規挿入された状態では、端子金具２６のテーパ状接触部２８が、弾性導電部材２３の後面に食い込むように当接し、弾性体２４の後面に露出する複数本の導体２５の後端部と導通可能に接触する。このとき、弾性体２４が弾性変形するのに伴って導体２５も変形するが、複数本の導体２５は弾性体２４の内部で互いに間隔を空けて個別に埋設されているので、導体２５は変形しても他の導体２５と接触することはない。したがって、隣り合う端子金具２６間が短絡することはない。 In a state where the terminal fitting 26 is properly inserted into the first terminal accommodating chamber 14, the tapered contact portion 28 of the terminal fitting 26 abuts against the rear surface of the elastic conductive member 23 and is exposed on the rear surface of the elastic body 24. A conductive contact is made with the rear end portions of the plurality of conductors 25. At this time, the conductor 25 is also deformed as the elastic body 24 is elastically deformed, but since the plurality of conductors 25 are separately embedded in the elastic body 24 at intervals, the conductor 25 is deformed. However, there is no contact with other conductors 25. Therefore, there is no short circuit between the adjacent terminal fittings 26.
　抜止め状態の端子金具２６を第１端子収容室１４から抜き取る際には、左右両第１抜止め突起１８の間に治具（図示省略）を差し込んで上側の抜止め部３３を下方へ変位させる。これにより、抜止め部３３と第１抜止め突起１８との係止状態が解除されるので、被覆電線３４を摘んで端子付き導電路３７を後方へ引っ張ればよい。 When removing the terminal fitting 26 in the retaining state from the first terminal accommodating chamber 14, a jig (not shown) is inserted between the left and right first retaining protrusions 18 to displace the upper retaining portion 33 downward. Let As a result, the locked state between the retaining portion 33 and the first retaining projection 18 is released, so it is sufficient to pinch the coated wire 34 and pull the conductive path with terminal 37 rearward.
　雄側コネクタＭは、合成樹脂製の第２ハウジング４０と、複数の端子金具２６（請求項に記載の第２端子金具）とを備えて構成されている。雄側コネクタＭを構成する端子金具２６は、雌側コネクタＦを構成する端子金具２６と同一部材である。したがって、詳細な説明は省略する。 The male connector M includes a second housing 40 made of synthetic resin and a plurality of terminal fittings 26 (second terminal fittings described in the claims). The terminal fitting 26 constituting the male connector M is the same member as the terminal fitting 26 constituting the female connector F. Therefore, the detailed description is omitted.
　第２ハウジング４０は、端子金具２６を収容するハウジング本体部４１と、ハウジング本体部４１から前方へ角筒状に延出したフード部４２とを有する単一部材である。ハウジング本体部４１内には、前後方向に細長い複数の第２端子収容室４３が、複数の第１端子収容室１４と個別に対向するように形成されている。即ち、複数の第２端子収容室４３は、上下３段に分かれて配され、上中下の各段において左右方向に一定ピッチで並列して配置されている。各第２端子収容室４３の前端側領域は、前後方向に細長い第２小径収容部４４となっている。第２小径収容部４４の軸線と直角に切断したときの断面形状は、円形である。第２小径収容部４４の前端はハウジング本体部４１の前面に開口している。 The second housing 40 is a single member having a housing body portion 41 for housing the terminal fitting 26 and a hood portion 42 extending forward in a square tube shape from the housing body portion 41. In the housing main body portion 41, a plurality of second terminal accommodation chambers 43 elongated in the front-rear direction are formed to individually face the plurality of first terminal accommodation chambers 14. That is, the plurality of second terminal accommodation chambers 43 are divided into upper and lower three stages, and arranged in parallel at a constant pitch in the left-right direction in each of the upper, middle, and lower stages. The front end side area of each second terminal accommodation chamber 43 is a second small diameter accommodation portion 44 elongated in the front-rear direction. The cross-sectional shape of the second small diameter housing portion 44 when cut at a right angle to the axis is circular. The front end of the second small diameter housing portion 44 is open at the front surface of the housing body 41.
　各第２端子収容室４３の後端側領域は、第２小径収容部４４の後端に同軸状に連なった第２大径収容部４５となっている。第２大径収容部４５の軸線と直角に切断したときの断面形状は、概ね円形であり、詳細には上下寸法が左右寸法より僅かに大きい長円形をなしている。第２大径収容部４５の左右寸法は第２小径収容部４４の内径よりも大きく、この寸法差により、第２大径収容部４５の前端部には第２前止まり部４６が形成されている。第２大径収容部４５の後端は、第２ハウジング４０の後端面に開口している。第２大径収容部４５の後端部内周には、その上面部を径方向内側（下方）へ突出させた形態の左右対称な一対の第２抜止め突起４７が形成されている。 The rear end side area of each second terminal storage chamber 43 is a second large diameter storage portion 45 coaxially connected to the rear end of the second small diameter storage portion 44. The cross-sectional shape of the second large-diameter storage portion 45 when cut at a right angle to the axis is substantially circular, and more specifically, it has an oblong shape in which the upper and lower dimensions are slightly larger than the left and right dimensions. The left and right dimensions of the second large diameter accommodation portion 45 are larger than the inner diameter of the second small diameter accommodation portion 44, and a second front stop 46 is formed at the front end of the second large diameter accommodation portion 45 due to this dimensional difference. There is. The rear end of the second large diameter accommodation portion 45 is open at the rear end surface of the second housing 40. On the inner periphery of the rear end portion of the second large diameter accommodation portion 45, a pair of laterally symmetrical second retaining projections 47 in which the upper surface portion thereof protrudes radially inward (downward) are formed.
　雌側コネクタＦと雄側コネクタＭを嵌合する際には、第１ハウジング１０と第２ハウジング４０をその前面同士が対向するように接近させ、第１ハウジング１０を第２ハウジング４０のフード部４２内に嵌入する。両ハウジング１０，４０が正規嵌合すると、第２ハウジング４０に取り付けられている端子金具２６のテーパ状接触部２８が、フロントホルダ１９の貫通孔２２に収容され、弾性導電部材２３の前端面に対して食い込むように当接し、弾性体２４の前面面に露出する複数本の導体２５の前端部と導通可能に接触する。 When fitting the female connector F and the male connector M, the first housing 10 and the second housing 40 are approached so that their front surfaces face each other, and the hood portion of the second housing 40 Insert into 42. When the two housings 10 and 40 are properly fitted, the tapered contact portion 28 of the terminal fitting 26 attached to the second housing 40 is accommodated in the through hole 22 of the front holder 19 and the front end face of the elastic conductive member 23 It contacts to bite in a conductive manner, and is in conductive contact with the front end portions of the plurality of conductors 25 exposed on the front surface of the elastic body 24.
　このとき、弾性体２４が弾性変形するのに伴って導体２５も変形するが、複数本の導体２５は弾性体２４の内部で互いに間隔を空けて個別に埋設されているので、導体２５は変形しても他の導体２５と接触することはない。したがって、第２ハウジング４０において隣り合う端子金具２６間が短絡することはない。 At this time, the conductor 25 is also deformed as the elastic body 24 is elastically deformed, but since the plurality of conductors 25 are separately embedded in the elastic body 24 at intervals, the conductor 25 is deformed. However, there is no contact with other conductors 25. Therefore, there is no short circuit between the adjacent terminal fittings 26 in the second housing 40.
　両ハウジング１０，４０が嵌合すると、第１ハウジング１０に取り付けられている複数の端子金具２６と、第２ハウジング４０に取り付けられている複数の端子金具２６とが、弾性導電部材２３の導体２５を介すことにより個別に導通可能に接続される。このとき、弾性導電部材２３は、第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６との間で、両ハウジング１０，４０の嵌合方向と平行に挟み付けられる。つまり、第１ハウジング１０の端子金具２６と弾性導電部材２３と第２ハウジング４０の端子金具２６が、両ハウジング１０，４０の嵌合方向と平行に並んだ状態となる。 When the two housings 10 and 40 are fitted, the plurality of terminal fittings 26 attached to the first housing 10 and the plurality of terminal fittings 26 attached to the second housing 40 are the conductors 25 of the elastic conductive member 23. Are individually conductively connected by means of. At this time, the elastic conductive member 23 is sandwiched between the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 in parallel with the fitting direction of the two housings 10 and 40. That is, the terminal fitting 26 of the first housing 10, the elastic conductive member 23, and the terminal fitting 26 of the second housing 40 are aligned parallel to the fitting direction of the two housings 10 and 40.
　第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６を導通させる導体２５は、両端子金具２６の食い込みによって弾性変形する弾性体２４の内部に埋設されている。したがって、弾性体２４の弾性復元力により、導体２５の後端部が第１ハウジング１０の端子金具２６に対して弾性的に当接するとともに、導体２５の前端部が第２ハウジング４０の端子金具２６に対して弾性的に当接する。これにより、第１ハウジング１０の端子金具２６と導体２５とが所定の接触圧で接触するとともに、導体２５と第２ハウジング４０の端子金具２６とが所定の接触圧で接触するので、第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６とは、導体２５（弾性導電部材２３）を介すことにより高い信頼性で接続される。 A conductor 25 for electrically connecting the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 is embedded in an elastic body 24 elastically deformed by the biting of the two terminal fittings 26. Accordingly, the rear end portion of the conductor 25 elastically abuts against the terminal fitting 26 of the first housing 10 by the elastic restoring force of the elastic body 24, and the front end portion of the conductor 25 is the terminal fitting 26 of the second housing 40. Contact elastically against As a result, the terminal fitting 26 of the first housing 10 contacts the conductor 25 at a predetermined contact pressure, and the conductor 25 contacts the terminal fitting 26 of the second housing 40 at a predetermined contact pressure. The ten terminal fittings 26 and the terminal fittings 26 of the second housing 40 are connected with high reliability through the conductor 25 (elastic conductive member 23).
　本実施例１のコネクタは、第１ハウジング１０と、第１ハウジング１０と嵌合可能な第２ハウジング４０と、第１ハウジング１０及び第２ハウジング４０に取り付けた端子金具２６と、弾性導電部材２３とを備えている。弾性導電部材２３は、第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６との間で、両ハウジング１０，４０の嵌合方向と略平行に挟まれている。両ハウジング１０，４０を嵌合すると、第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６は弾性導電部材２３を介して導通可能に接続される。第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６は、一方の端子金具２６を他方の端子金具２６の内部に挿入する接続形態とはならない。したがって、本実施例１のコネクタは、両ハウジング１０，４０の嵌合方向と交差する方向（上下方向又は左右方向）の寸法を小さくできる。 The connector according to the first embodiment includes a first housing 10, a second housing 40 that can be fitted to the first housing 10, a terminal fitting 26 attached to the first housing 10 and the second housing 40, and an elastic conductive member 23 And have. The elastic conductive member 23 is sandwiched between the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 substantially in parallel with the fitting direction of the two housings 10 and 40. When the two housings 10 and 40 are fitted, the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 are electrically connected via the elastic conductive member 23. The terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 do not have a connection form in which one terminal fitting 26 is inserted into the other terminal fitting 26. Therefore, the connector of the first embodiment can reduce the dimension in the direction (vertical direction or horizontal direction) intersecting with the fitting direction of both the housings 10 and 40.
　また、弾性導電部材２３は、フロントホルダ１９に取り付けられることにより第２ハウジング４０と対向するような形態で第１ハウジング１０に保持されている。これにより、弾性導電部材２３と第１ハウジング１０を一体的に取り扱うことができる。したがって、弾性導電部材２３と第１ハウジング１０を取り扱う場合や、両ハウジング１０，４０を嵌合する際の作業が容易である。また、弾性導電部材２３は、可撓性を有する導体２５を弾性体２４内に埋設した形態なので、導体２５の大部分は剥き出しにならずに済んでいる。したがって、他部材の干渉に起因して導体２５が破損したりすることを防止できる。 Further, the elastic conductive member 23 is held by the first housing 10 so as to face the second housing 40 by being attached to the front holder 19. Thereby, the elastic conductive member 23 and the first housing 10 can be handled integrally. Therefore, the operation when handling the elastic conductive member 23 and the first housing 10 or when fitting the two housings 10 and 40 is easy. Further, since the elastic conductive member 23 has a form in which the flexible conductor 25 is embedded in the elastic body 24, most of the conductor 25 is not exposed. Therefore, the conductor 25 can be prevented from being damaged due to the interference of other members.
　また、第１ハウジング１０の端子金具２６と第２ハウジング４０の端子金具２６が複数ずつ左右方向に並列配置されている。この配置に着目し、弾性体２４（弾性導電部材２３）を、第１ハウジング１０の端子金具２６及び第２ハウジング４０の端子金具２６の並列方向に長い形状とした上で、複数の導体２５を、第１ハウジング１０の端子金具２６及び第２ハウジング４０の端子金具２６と対応して並ぶように配した。この構成によれば、１つの弾性導電部材２３によって第１ハウジング１０の複数の端子金具２６と第２ハウジング４０の複数の端子金具２６とを個別に導通させることができる。また、第１ハウジング１０に取り付けられる端子金具２６と第２ハウジング４０に取り付けられる端子金具２６を、同一形状としたので、部品の種類数が削減されている。 Further, the terminal fittings 26 of the first housing 10 and the terminal fittings 26 of the second housing 40 are arranged in parallel in the left-right direction. Focusing on this arrangement, the elastic body 24 (elastic conductive member 23) is formed into a long shape in the parallel direction of the terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40, The terminal fitting 26 of the first housing 10 and the terminal fitting 26 of the second housing 40 are arranged to correspond to each other. According to this configuration, the plurality of terminal fittings 26 of the first housing 10 and the plurality of terminal fittings 26 of the second housing 40 can be separately conducted by one elastic conductive member 23. Further, since the terminal fitting 26 attached to the first housing 10 and the terminal fitting 26 attached to the second housing 40 have the same shape, the number of types of parts is reduced.
　また、本実施例１の端子付き導電路３７は、芯線３５を絶縁被覆３６で包囲した被覆電線３４と、被覆電線３４の前端部に接続された端子金具２６とを備えている。端子金具２６は、芯線３５を締付け状態で包囲する筒状接続部２７を有し、筒状接続部２７の前端部にはテーパ状接触部２８が形成されている。第１ハウジング１０に取り付けた端子金具２６のテーパ状接触部２８の外面は、弾性導電部材２３を介して第２ハウジング４０の端子金具２６と接続するための手段として機能する。第２ハウジング４０に取り付けた端子金具２６のテーパ状接触部２８の外面は、弾性導電部材２３を介して第１ハウジング１０の端子金具２６と接続するための手段として機能する。 In addition, the terminal-attached conductive path 37 of the first embodiment includes the covered electric wire 34 in which the core 35 is surrounded by the insulating coating 36, and the terminal fitting 26 connected to the front end of the covered electric wire 34. The terminal fitting 26 has a cylindrical connecting portion 27 that surrounds the core wire 35 in a tightened state, and a tapered contact portion 28 is formed at the front end of the cylindrical connecting portion 27. The outer surface of the tapered contact portion 28 of the terminal fitting 26 attached to the first housing 10 functions as a means for connecting to the terminal fitting 26 of the second housing 40 through the elastic conductive member 23. The outer surface of the tapered contact portion 28 of the terminal fitting 26 attached to the second housing 40 functions as a means for connecting to the terminal fitting 26 of the first housing 10 through the elastic conductive member 23.
　このように筒状接続部２７は、芯線３５に固着する機能と、弾性導電部材２３に接続する機能（弾性導電部材２３を介して相手側の端子金具２６と接続する機能）とを兼ね備えているので、これら２つの機能を別々に形成する場合に比べると、本実施例の端子金具２６は、形状を簡素化することが可能となっている。 Thus, the cylindrical connection portion 27 has the function of fixing to the core wire 35 and the function of connecting to the elastic conductive member 23 (function to connect to the mating terminal fitting 26 through the elastic conductive member 23). Therefore, as compared with the case where these two functions are formed separately, it is possible to simplify the shape of the terminal fitting 26 of this embodiment.
　また、筒状接続部２７内には、芯線３５のうち絶縁被覆３６を除去した領域（芯線３５の露出部分）のみが収容されているので、筒状接続部２７の外径を小さくすることができる。また、筒状接続部２７の後端には、被覆電線３４のうち絶縁被覆３６が芯線３５を包囲する領域を締付け状態で包囲する被覆包囲部３０が連なっている。この構成によれば、被覆電線３４と端子金具２６が、筒状接続部２７と被覆包囲部３０の両方において締付け状態で固着されるので、被覆電線３４と端子金具２６との固着強度が高い。 In addition, only the region of the core wire 35 from which the insulating coating 36 is removed (the exposed portion of the core wire 35) is accommodated in the cylindrical connection portion 27, so the outer diameter of the tubular connection portion 27 can be reduced. it can. In addition, at the rear end of the cylindrical connection portion 27, a covering surrounding portion 30 in a state where the insulating covering 36 encloses the core wire 35 in a tightened state is connected in a row. According to this configuration, since the coated wire 34 and the terminal fitting 26 are fixed in a tightened state in both the cylindrical connection portion 27 and the coating surrounding portion 30, the bonding strength between the coated wire 34 and the terminal fitting 26 is high.
　また、被覆包囲部３０には、被覆包囲部３０の後端から軸線方向前方へ延びる一対のスリット３２と、スリット３２に沿うように後方へ片持ち状に延出し且つ後方に向かうほど径方向外方へ拡がった一対の抜止め部３３とが形成されている。この構成によれば、ハウジング１０，４０に挿入した端子金具２６は、抜止め部３３をハウジング１０，４０に係止させることによって抜止めされる。抜止め部３３は、スリット３２に沿うように片持ち状に延出した形態なので、形状がシンプルである。 Further, in the covering surrounding portion 30, a pair of slits 32 extending in the axial direction from the rear end of the covering surrounding portion 30, and extending in a cantilever shape along the slits 32 in a backward direction A pair of retaining portions 33 expanded toward the side is formed. According to this configuration, the terminal fitting 26 inserted into the housing 10, 40 is prevented from being removed by locking the retaining portion 33 to the housing 10, 40. The retaining portion 33 has a simple shape because it extends in a cantilever shape along the slit 32.
　また、被覆包囲部３０のうち抜止め部３３より前方の領域には、絶縁被覆３６の外周を締め付ける被覆締付部３１が形成されている。この構成によれば、被覆締付部３１を縮径変形させて絶縁被覆３６の外周を締め付け加工すると、締付け加工に伴い、抜止め部３３が、被覆締付部３１の縮径変形に連動して後方に向かうほど径方向外方へ拡がるように変形する。したがって、絶縁被覆３６を被覆締付部３１で締め付ける加工と、抜止め部３３を径方向外方へ拡げる加工とを、１工程で行うことができる。 Further, in a region on the front side of the retaining portion 33 in the covering surrounding portion 30, a covering tightening portion 31 for tightening the outer periphery of the insulating covering 36 is formed. According to this configuration, when the diameter of the covering tightening portion 31 is reduced and the outer periphery of the insulation coating 36 is tightened, the retaining portion 33 interlocks with the diameter reduction deformation of the covering tightening portion 31 along with the tightening process. It is deformed to expand radially outward toward the rear. Therefore, the process of tightening the insulating coating 36 by the covering tightening portion 31 and the process of expanding the retaining portion 33 radially outward can be performed in one step.
　＜他の実施例＞
　本発明は上記記述及び図面によって説明した実施例に限定されるものではなく、例えば次のような実施例も本発明の技術的範囲に含まれる。
　（１）上記実施例では、弾性導電部材が第１ハウジングに保持されているが、弾性導電部材は、第２ハウジングに保持される形態としてもよく、第１ハウジングと第２ハウジングのいずれにも保持されない形態としてもよい。
　（２）上記実施例では、弾性導電部材が、複数の導体を１つの弾性体に埋設した形態であるが、弾性導電部材は、１つの弾性体に１つの導体を埋設した形態であってもよい。
　（３）上記実施例では、弾性導電部材が、可撓性を有する導体を弾性体内に埋設した形態であるが、弾性導電部材は露出形態のバネ部材（皿バネや圧縮コイルバネ等）であってもよい。
　（４）上記実施例では、第１ハウジングに取り付けた端子金具（第１端子金具）と第２ハウジングに取り付けた端子金具（第２端子金具）を同一形状のものとしたが、第１端子金具と第２端子金具は互いに異なる形状としてもよい。
　（５）上記実施例では、端子金具の筒状接続部に、芯線のうち絶縁被覆が除去された領域のみを収容したが、筒状接続部に、芯線のうち絶縁被覆で包囲されていない領域と、絶縁被覆で包囲されている領域の一部を収容してもよい。
　（６）上記実施例では、端子金具に被覆包囲部が形成されているが、端子金具は被覆包囲部を有しないものであってもよい。
　（７）上記実施例では、抜止め部は、スリットを形成することによって径方向外方へ拡開する形態となっているが、抜止め部は、スリットを形成せずに、切り起こしや叩き出し等によって形成してもよい。
　（８）上記実施例では、抜止め部を被覆包囲部に形成したが、抜止め部は筒状接続部に形成してもよい。 Other Embodiments
The present invention is not limited to the embodiments described above with reference to the drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the elastic conductive member is held by the first housing, but the elastic conductive member may be held by the second housing. Either of the first housing and the second housing may be used. It may be a form not held.
(2) In the above embodiment, the elastic conductive member has a form in which a plurality of conductors are embedded in one elastic body, but the elastic conductive member may have a form in which one conductor is embedded in one elastic body. Good.
(3) In the above embodiment, the elastic conductive member has a form in which a flexible conductor is embedded in an elastic body, but the elastic conductive member is a spring member (such as a disc spring or a compression coil spring) in an exposed form It is also good.
(4) In the above embodiment, the terminal fitting (first terminal fitting) attached to the first housing and the terminal fitting (second terminal fitting) attached to the second housing have the same shape, but the first terminal fitting And the second terminal fitting may have different shapes.
(5) In the above embodiment, only the area of the core wire from which the insulation coating has been removed is accommodated in the cylindrical connection portion of the terminal fitting, but in the cylindrical connection portion, the area not surrounded by the insulation coating And a part of the area surrounded by the insulating coating.
(6) In the above-mentioned embodiment, although the covering enclosure is formed in the terminal fitting, the terminal fitting may not have the covering enclosure.
(7) In the above embodiment, the retaining portion is formed to expand radially outward by forming a slit, but the retaining portion does not form a slit, and is cut and raised or struck. It may be formed by extrusion or the like.
(8) In the above embodiment, although the retaining portion is formed in the covering encircling portion, the retaining portion may be formed in a tubular connection portion.
　１０…第１ハウジング
　２３…弾性導電部材
　２４…弾性体
　２５…導体
　２６…端子金具（第１端子金具，第２端子金具）
　２７…筒状接続部
　３４…被覆電線
　３５…芯線
　３６…絶縁被覆
　４０…第２ハウジング DESCRIPTION OF SYMBOLS 10 ... 1st housing 23 ... Elastic conductive member 24 ... Elastic body 25 ... Conductor 26 ... Terminal fitting (1st terminal fitting, 2nd terminal fitting)
27 ... cylindrical connection part 34 ... coated electric wire 35 ... core wire 36 ... insulation coating 40 ... second housing

Claims (6)

  1. 　第１ハウジングと、
    　前記第１ハウジングに取り付けた第１端子金具と、
    　前記第１ハウジングと嵌合可能な第２ハウジングと、
    　前記第２ハウジングに取り付けた第２端子金具と、
    　前記第１端子金具と前記第２端子金具との間で、前記第１ハウジングと前記第２ハウジングの嵌合方向と略平行に挟まれる弾性導電部材とを備えていることを特徴とするコネクタ。     A first housing,
    A first terminal fitting attached to the first housing;
    A second housing mateable with the first housing;
    A second terminal fitting attached to the second housing;
    A connector comprising: an elastic conductive member sandwiched between the first terminal fitting and the second terminal fitting substantially in parallel with the fitting direction of the first housing and the second housing.
  2. 　前記弾性導電部材が前記第２ハウジングと対向するように前記第１ハウジングに保持されていることを特徴とする請求項１記載のコネクタ。 The connector according to claim 1, wherein the elastic conductive member is held by the first housing so as to face the second housing.
  3. 　前記弾性導電部材は、可撓性を有する導体を弾性体内に埋設した形態であることを特徴とする請求項１又は請求項２記載のコネクタ。 The connector according to claim 1 or 2, wherein the elastic conductive member has a form in which a flexible conductor is embedded in an elastic body.
  4. 　前記第１端子金具と前記第２端子金具が複数ずつ並列配置されており、
    　前記弾性体は、前記第１端子金具及び前記第２端子金具の並列方向に長い形状であり、
    　複数の前記導体が、複数の前記第１端子金具及び複数の前記第２端子金具と対応して並ぶように配されていることを特徴とする請求項３記載のコネクタ。     The plurality of first terminal fittings and the plurality of second terminal fittings are arranged in parallel,
    The elastic body has a shape elongated in the parallel direction of the first terminal fitting and the second terminal fitting,
    The connector according to claim 3, wherein the plurality of conductors are arranged to correspond to the plurality of first terminal fittings and the plurality of second terminal fittings.
  5. 　前記第１端子金具と前記第２端子金具が同一形状であることを特徴とする請求項１ないし請求項４のいずれか１項に記載のコネクタ。 The connector according to any one of claims 1 to 4, wherein the first terminal fitting and the second terminal fitting have the same shape.
  6. 　前記第１端子金具と前記第２端子金具は、芯線を絶縁被覆で包囲した被覆電線の前端部に接続されており、
    　前記第１端子金具及び前記第２端子金具には、前記芯線を締付け状態で包囲し、外面が前記弾性導電部材との接続手段として機能する筒状接続部が形成されていることを特徴とする請求項５記載のコネクタ。     The first terminal fitting and the second terminal fitting are connected to a front end portion of a coated wire in which a core wire is surrounded by an insulating coating,
    The first terminal fitting and the second terminal fitting are characterized in that a cylindrical connection portion is formed which surrounds the core wire in a tightened state and whose outer surface functions as a connection means with the elastic conductive member. The connector according to claim 5.
PCT/JP2018/028016 2017-08-16 2018-07-26 Connector WO2019035332A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109818183A (en) * 2019-04-01 2019-05-28 哈尔滨工业大学 A kind of film contacts part and the connector using the contact

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123581U (en) * 1982-02-17 1983-08-23 株式会社井上ジャパックス研究所 connection device
JPS6130979U (en) * 1984-07-30 1986-02-25 エスエムケイ株式会社 Multi-core cable connection device
JPH11135181A (en) * 1997-10-31 1999-05-21 Nec Corp Separable connector
JP2004241246A (en) * 2003-02-05 2004-08-26 Sumitomo Wiring Syst Ltd Terminal metal and connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58123581U (en) * 1982-02-17 1983-08-23 株式会社井上ジャパックス研究所 connection device
JPS6130979U (en) * 1984-07-30 1986-02-25 エスエムケイ株式会社 Multi-core cable connection device
JPH11135181A (en) * 1997-10-31 1999-05-21 Nec Corp Separable connector
JP2004241246A (en) * 2003-02-05 2004-08-26 Sumitomo Wiring Syst Ltd Terminal metal and connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109818183A (en) * 2019-04-01 2019-05-28 哈尔滨工业大学 A kind of film contacts part and the connector using the contact

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