JP2016213108A - Joint connector and wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly reliable compact joint connector which couples a pair of bus bar members, accommodated in a pair of semi-cylindrical bodies, by fitting and contacting the bus bar members and prevents the coupled portion from projecting an outer peripheral surface of a connector housing.SOLUTION: A joint connector is provided with a bus bar 25 in which a connector housing 21, a plurality of female terminals 24, and a plurality of male terminals 26 are integrally formed with each other. The connector housing 21 is composed of a pair of semi-cylindrical bodies 31, 32 which are hinge-coupled to each other at one circumferential ends thereof and cylindrically closed. The bus bar 25 is composed of a first bus bar member 51 held by either one of the pair of semi-cylindrical bodies 31, 32 and a second bus bar member 52 held by either the other of the pair of semi-cylindrical bodies 31, 32. Both bus bar members 51, 52 are provided with fitting contact portions 55 fitted and conducted to each other on the other end sides of the semi-cylindrical bodies 31, 32 when the semi-cylindrical bodies 31, 32 are cylindrically closed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a joint connector and a wire harness, and more particularly to a cylindrical joint connector and a wire harness including the same.

  Some wire harnesses mounted on vehicles such as automobiles use joint connectors for short-circuiting or splicing a plurality of electric wires.

  In addition, as a joint connector, multiple sets of male and female terminals are held in parallel in the housing extending in the circumferential direction of the wire bundle of the wire harness, thereby enlarging those connected portions even if the number of wires to be connected is large. In addition, there is one that can suppress the number of parts.

  As this type of conventional joint connector, for example, a cylindrical shape surrounding each wire bundle and one and the other connector housings facing each other in the axial direction of the wire bundle, and a comb shape curved so as to extend in the circumferential direction of the wire bundle. And a bus bar member for projecting the tooth-shaped portion axially from one connector housing, and a plurality of female terminals housed in the other connector housing so as to be fitted to the plurality of tooth-shaped male terminal portions of the bus bar member. Is known (see, for example, Patent Document 1). In this joint connector, one connector housing has a pair of semi-cylindrical bodies each housing a bus bar member hinged at one end in the circumferential direction, and a snap lock type locking mechanism is provided at the other end in the circumferential direction. The joint connector, which is configured in a non-locked state and is packaged on the wire bundle, is closed and locked in a cylindrical shape surrounding the wire bundle.

  Further, each of the pair of semi-cylindrical bodies of the connector housing having the female terminal insertion hole on one end side accommodates a comb-like bus bar member having a plurality of male terminals so as to protrude from the inner bottom portion of the female terminal insertion hole. In addition, by providing a coupling portion that integrally couples the bus bar members in the pair of semi-cylindrical bodies in the vicinity of the hinge coupling portion between the semi-cylindrical bodies of the connector housing, the number of terminals that can be electrically connected is increased. It is known (see, for example, Patent Document 2).

JP 2000-173352 A Japanese Patent Laying-Open No. 2015-2151

  However, the former former joint connector and wire harness, in which a pair of semi-cylindrical bodies each containing a bus bar member are hinge-joined at one end in the circumferential direction, can be opened and closed. Although the mounting workability is good, the number of conductive male terminals is limited for each bus bar member and is small. For this reason, there is an unsolved problem that the number of connections such as splice connections is limited.

  Further, in the conventional latter joint connector and wire harness that provide a coupling portion that couples a pair of bus bar members together in the vicinity of the hinge coupling portion between the semi-cylindrical bodies of the connector housing, the pair of bus bar members Since the coupling part protrudes radially outward from the outer peripheral surface of the connector housing and is exposed to the outside, an insulation treatment with an insulating tape or the like is required to ensure reliability, and the connection part is not compact. There was a problem to be solved.

  The present invention has been made to solve such a conventional problem, and not only has good workability in mounting on a bundle of wires, but also combines a pair of bus bar members housed in a pair of semi-cylindrical bodies. An object of the present invention is to provide a highly reliable and compact joint connector and wire harness in which the connecting portion is not protruded from the outer peripheral surface of the connector housing while the number of connections is sufficiently secured.

  In order to achieve the above object, the joint connector according to the present invention has a connector housing that extends in the circumferential direction of the wire bundle and has both edge portions opposed to the circumferential direction, and the circumferential direction while extending in the axial direction of the wire bundle. A plurality of female terminals arranged in parallel so as to be separated from each other, and a bus bar in which a plurality of male terminals held by the connector housing to be connected to the plurality of female terminals are integrally formed in a comb shape. The connector housing includes a pair of semi-cylindrical bodies that are hinged to each other at one end side in the circumferential direction and closed in a cylindrical shape, and the bus bar is any of the pair One bus bar member held by one semi-cylindrical body and the other bus bar member held by the other semi-cylindrical body of the pair And the one and the other busbar members are arranged on the other end side in the circumferential direction of the pair of semi-cylindrical bodies when the pair of semi-cylindrical bodies are closed in the cylindrical shape. A fitting contact portion for fitting and conducting is provided.

  With this configuration, in the joint connector of the present invention, the connector housing and the bus bar can be in an open state in which the connector housing and the bus bar can be easily mounted on the wire bundle, and the mounting workability is good. In addition, when the connector housing is in a cylindrical closed state, the pair of bus bar members are engaged with each other at the fitting contact portion and are electrically connected, thereby providing an electrically integrated bus bar. Therefore, the number of male terminals connected to each other can be increased to ensure the number of connections such as splice connections. Further, the fitting contact portions of the one and the other bus bar members do not protrude radially outward from the outer peripheral surface of the connector housing.

  In the joint connector of the present invention, the one bus bar member includes a plurality of one-side male terminals that are separated from each other in the circumferential direction, and one semi-annular portion that integrally couples the one-side male terminals; A fitting convex portion integrally supported by the one semicircular ring portion on the other end side in the circumferential direction of the one semicylindrical body, and the other bus bar member is arranged in the circumferential direction. A plurality of male terminals on the other side that are spaced apart from each other; the other semi-annular portion that integrally couples the male terminals on the other side; and the other semi-cylindrical body at the other end in the circumferential direction of the other A fitting recess that is integrally supported by the semi-annular portion, and when the pair of semi-cylindrical bodies are closed in the cylindrical shape, the fitting projection is fitted into the fitting recess. Good.

  In this way, when the pair of semi-cylindrical bodies of the connector housing are closed in a cylindrical shape, the fitting convex portion of one semi-annular portion is fitted into the fitting concave portion of the other semi-annular portion. Thus, a reliable conductive contact state is ensured. Therefore, in addition to the fitting contact portion not projecting radially outward from the outer peripheral surface of the connector housing, the reliability of the joint connector is enhanced. In addition, it is good to make a fitting convex part and a fitting recessed part contact with predetermined contact pressure by elastic interference fitting or pinching fitting.

  In the joint connector of the present invention, the one and the other bus bar members are each composed of a conductive metal plate, and the plurality of one-side male terminals and the other-side male terminals are in the axial direction of the wire bundle. And the fitting convex part and the fitting concave part may have a plate surface orthogonal to the plurality of one-side male terminals and the other-side male terminal.

  If it does in this way, the easy and reliable fitting in the fitting contact part of one and the other bus-bar member and ensuring of the stable contact surface pressure will be attained.

  The wire harness which concerns on this invention is a wire harness provided with the joint connector comprised as mentioned above, Comprising: A 1st electric wire is a part of several said female terminal among the several electric wires which comprise the said wire bundle. A plurality of second female wires connected to the first female terminal and constituting the wire bundle are a plurality of second female wires corresponding to the first female terminal among the plurality of female terminals. Is connected to the terminal.

  With this configuration, in the wire harness of the present invention, the bus bar is moved in the axial direction of the wire bundle and fitted to the plurality of female terminals held in the connector housing around the wire bundle. At the same time as closing the cylindrical body, one and the other bus bar members can be brought into contact with each other to be conducted, and the first electric wire and the plurality of second electric wires can be spliced. Therefore, it becomes a low-cost and highly reliable wire harness capable of sufficiently saving the connecting portion.

  According to the present invention, not only the mounting workability to the electric wire bundle is good, but also the pair of bus bar members housed in the pair of semi-cylindrical bodies are coupled to ensure a sufficient number of connections, the coupling portion thereof Thus, it is possible to provide a highly reliable and compact joint connector and wire harness that does not protrude from the outer peripheral surface of the connector housing.

It is a perspective view which shows the open state of the joint connector which concerns on one embodiment of this invention. It is a principal part top view of the wire harness which concerns on one embodiment of this invention. It is a top view which shows the open state of the connector housing and bus bar in the joint connector which concerns on one embodiment of this invention. FIG. 4 is a view in the direction of arrow A in FIG. 3. It is a principal part cross-sectional view of the wire harness which concerns on one embodiment of this invention. It is BB arrow sectional drawing of FIG. Fig.7 (a) is a principal part front view which shows the state before the fitting contact of the one and other bus-bar members in the joint connector which concerns on one embodiment of this invention, FIG.7 (b) is both bus-bars It is a principal part front view which shows the state after the fitting contact of a member. Fig.8 (a) is explanatory drawing of the fitting form of the fitting contact part seen in the arrow C direction in Fig.7 (a) and FIG.7 (b), FIG.8 (b) is FIG. It is DD sectional view taken on the line in b). FIG. 9A is a partially enlarged plan view of the joint connector in an open state corresponding to the vicinity of the upper left end portion of the joint connector shown in FIG. 3, and FIG. 9B is a view taken along line E- in FIG. It is E arrow sectional drawing. FIG. 10A is a partially enlarged plan view of the joint connector in an open state corresponding to the vicinity of the upper right end portion of the joint connector shown in FIG. 3, and FIG. 10B is an F− in FIG. It is F arrow sectional drawing.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  1 to 10 show an embodiment of a joint connector and a wire harness according to the present invention. The wire harness of the present embodiment is mounted on a vehicle such as an automobile, and a part of a plurality of electric wires constituting the electric wire bundle is spliced.

  First, the configuration of the present embodiment will be described.

  As shown in FIGS. 1 and 2, the wire harness 1 according to the present embodiment includes an electric wire bundle 10 that is a bundle of electric wires including a plurality of electric wires 11 and 12, and an exterior material that is sheathed by the electric wire bundle 10. And a joint connector 14 for splice connection attached to the outer periphery of the corrugated tube 13.

  The electric wire bundle 10 is a unit obtained by attaching connectors or the like to both ends of the electric wires 11, 12 etc., not shown, and is configured so that electric equipment mounted on the vehicle can be connected to a power source, control equipment, etc. Has been.

  The electric wire bundle 10 includes a plurality of electric wires 11 and 12 bundled with an insulating tape, for example, at a predetermined interval, or a wire in which an insulating tape is roughly wound spirally, or discrete wires whose path is restricted by a corrugated tube 13. One of the groups.

  Each of the plurality of electric wires 11 and 12 is a known insulation-coated electric wire, and its conductor is constituted by a circular stranded wire formed by twisting a plurality of annealed copper wires, for example.

  The corrugated tube 13 is made of synthetic resin such as polypropylene, and is formed by alternately connecting the annular convex portions 13a and the annular concave portions 13b in the axial direction (see FIG. 10), and is flexible so as to be freely three-dimensionally bent. Has become a sex bellows tube. The corrugated tube 13 is a known one, and may have a vertical slit or may not have a vertical slit.

  As shown in FIGS. 2 and 5, when no slit is provided, the corrugated tube 13 is separated into a corrugated tube 13 </ b> L on one side and a corrugated tube 13 </ b> R on the other side in the vicinity of the joint connector 14.

  The first electric wire 11 out of the plurality of electric wires 11 and 12 extends from one end side (the left end side in FIG. 2) of the wire harness 1 to the vicinity of the joint connector 14, and on the splice side in the vicinity of the joint connector 14. The connection end portion 11a is drawn out of the corrugated tube 13 from between the corrugated tubes 13L and 13R.

  In addition, a plurality of, for example, three second wires 12 out of the plurality of wires 11, 12 extend from the vicinity of the joint connector 14 to the other end side (the right end side in FIG. 2) of the wire harness 1, An end 12a on the splice side is drawn out of the corrugated tube 13 from between the corrugated tubes 13L and 13R.

  In addition, when the corrugated tube 13 has a slit, the connection ends 11a and 12a on the splice connection side of the plurality of electric wires 11 and 12 are drawn out of the corrugated tube 13 through the slit.

  The joint connector 14 includes a connector housing 21 extending in the outer circumferential direction and the axial direction of the wire bundle 10 with the corrugated tube 13 mounted thereon, a plurality of female terminals 24 housed and held in the connector housing 21, and a plurality of female terminals. A plurality of male terminals 26 connected to 24 include a bus bar 25 integrally formed in a comb shape. The numbers of the plurality of female terminals 24 and the plurality of male terminals 26 are, for example, 12, respectively, but may be other numbers.

  The connector housing 21 is configured by a substantially cylindrical curved wall 22 that extends in the outer circumferential direction of the wire bundle 10 and can be opened and closed at a specific location in the circumferential direction. Both end edges 22a and 22b are opposed to each other in the outer circumferential direction.

  As shown in FIGS. 3 to 5, the connector housing 21 is a pair of semi-cylindrical bodies 31 and 32 that are hinge-coupled by a thin hinge portion 33 at one end in the circumferential direction. Both end edges 22a and 22b are formed on the other end side in the circumferential direction of 31 and 32, respectively. The connector housing 21 can be disposed in the vicinity of the outer periphery of the corrugated tube 13 in an open state in which the other end sides of the pair of semicylindrical bodies 31 and 32 are spaced apart from each other. As shown in FIG. , 32 in a closed state in which the other end sides are close to each other, a cylindrical shape surrounding the outer periphery of the wire bundle 10 is obtained. The closed state of the pair of semi-cylindrical bodies 31, 32 is a snap-fit coupling type lock comprising a hook-like locking claw 34 a and a locking recess 34 b that are integrally attached to both edge portions 22 a, 22 b of the curved wall 22. It is held by the mechanism 34.

  As shown in FIGS. 2 and 6, the plurality of female terminals 24 are respectively attached to the connection ends 11 a and 12 a on the splice connection side of the plurality of electric wires 11 and 12. The plurality of female terminals 24 are arranged in parallel in the curved wall 22 so as to extend in the axial direction of the wire bundle 10 and be spaced apart at equal intervals in the outer peripheral direction of the wire bundle 10. Further, the plurality of female terminals 24 are prevented from coming off by being locked to the locking claws 22d in the plurality of female terminal storage holes 22c formed in the curved wall 22. Further, the plurality of female terminals 24 are abutted against inner wall surfaces 22e of the plurality of female terminal storage holes 22c of the curved wall 22 at their distal ends.

  The bus bar 25 is a conductive metal plate having a thickness that allows power supply connection, and the plurality of comb-shaped male terminals 26 are spaced apart in the circumferential direction at the same pitch as the plurality of female terminals 24. The plurality of male terminals 26 are integrally connected to arch-shaped connecting portions 27A and 27B (a pair of semicircular annular portions) extending in the outer peripheral direction of the wire bundle 10 and are formed in a comb shape.

  More specifically, the bus bar 25 includes a first bus bar member 51 held by one of the pair of semi-cylindrical bodies 31 and a first bus bar member 51 held by the other half-cylindrical body 32 of the pair. 2 bus bar members 52. The first bus bar member 51 has an arcuate shape that integrally couples a plurality of male terminals 26A arranged in parallel so as to be separated from each other in the circumferential direction of the wire bundle 10 and the male terminals 26A on the one side. It has a connecting portion 27A (the other semi-annular portion). The second bus bar member 52 includes a plurality of other male terminals 26B arranged in parallel so as to be separated from each other in the circumferential direction, and an arch-shaped connecting portion 27B that integrally couples the other male terminals 26B. One semi-annular portion).

  Further, on the rotation end side (the other end side in the circumferential direction of the semi-cylindrical bodies 31 and 32) of the arch-shaped connecting portions 27A and 27B that approach each other when the pair of semi-cylindrical bodies 31 and 32 are closed, A fitting contact portion 55 for fitting and contacting the first bus bar member 51 and the second bus bar member 52 with each other is provided.

  The fitting contact portion 55 includes any one of the first bus bar member 51 and the second bus bar member 52, for example, a fitting convex portion 53 integrally supported by the second bus bar member 52, the first bus bar member 51, and It is comprised by the other one of the 2nd bus-bar members 52, for example, the fitting recessed part 54 supported by the 1st bus-bar member 51 integrally.

  7 and 8, when the pair of semi-cylindrical bodies 31 and 32 are closed in a cylindrical shape, for example, the fitting provided integrally with the arch-shaped connecting portion 27B of the second bus bar member 52 The mating convex portion 53 is inserted into the fitting concave portion 54 provided integrally with the arch-shaped connecting portion 27 </ b> A of the first bus bar member 51.

  By the way, the first bus bar member 51 and the second bus bar member 52 are each composed of a conductive metal plate, and the plurality of male terminals 26A on the one side and male terminals 26B on the other side are arranged in the axial direction of the wire bundle 10, respectively. It is extended. The conductor metal plate referred to here has conductivity equivalent to that of the plurality of female terminals 24, and also has elasticity (spring property) to the extent that the contact pressure at the fitting contact portion 55 can be stably maintained. .

  As shown in FIGS. 8 (a) and 8 (b), the arch-shaped connecting portions 27A and 27B of the first bus bar member 51 and the second bus bar member 52 and the fitting convexes integrally attached to these end portions. The portion 53 and the fitting recess 54 have plate surfaces 28a and 28b that are orthogonal to the male terminal 26A on one side and the male terminal 26B on the other side, respectively. Mating contact with contact pressure.

  The fitting convex portion 53 extends either one of the first bus bar member 51 and the second bus bar member 52, for example, the end of the arch-shaped connecting portion 27B in the second bus bar member 52 by a predetermined length. The projecting piece is projected from the other semi-cylindrical body 32 and has the same thickness as that of the conductive metal plate.

  The other semi-cylindrical body 32 has a substantially U-shaped protection and guide protrusion 32p surrounding the fitting convex portion 53 from the outer side in the radial direction and both sides in the axial direction. It is provided with a slightly larger protruding height. Further, the other semi-cylindrical body 32 is formed with a concave surface 32f that slightly recedes from the position of the end surface 32e around the protrusion 32p.

  As shown in FIGS. 6 and 7, the fitting recess 54 is formed at the other end of the first bus bar member 51 and the second bus bar member 52, for example, at the end of the arch-shaped connecting portion 27 </ b> A in the first bus bar member 51. A projecting piece projecting in the plate width direction is provided, and the projecting piece is folded back into a substantially U shape whose inner width is narrower than the thickness of the fitting convex portion 53.

  In addition, on the inlet side of the fitting concave portion 54 into which the fitting convex portion 53 can be fitted, the opposite directions of the plate thickness direction to each other so that the inlet width of the fitting concave portion 54 is larger than the thickness of the fitting convex portion 53. Inclined guide portions 54a and 54b are provided.

  Further, the one semi-cylindrical body 31 is formed with a recess 31g capable of accommodating the protrusion 32p of the other semi-cylindrical body 32 and a bending process for forming the fitting recess 54 of the first bus bar member 51. A pair of guide inner projecting wall portions 31v are provided which project from the inner bottom wall surface of the recess 31g substantially in parallel while being close to the portion. When the fitting recess 54 can be elastically deformed so as to widen the inner width when the fitting projection 53 is fitted, the fitting recess 54 and the inner fitting projection 53 are formed by the pair of inner projecting wall portions 31v. Are guided in a predetermined fitting posture. In addition, one semi-cylindrical body 31 is formed with a convex surface 31f protruding slightly in the closing direction from the position of the end surface 32e so as to form an end surface side opening edge of the concave portion 31g.

  The first bus bar member 51 is held by one semi-cylindrical body 31 at and near the coupling portion between at least the arch-shaped connecting portion 27A and the plurality of male terminals 26A, and the second bus bar member 52 is The other semi-cylindrical body 32 is held at least near the coupling portion between the arcuate connecting portion 27B and the plurality of other male terminals 26B.

  That is, the plurality of male terminals 26 of the bus bar 25 are connected to the plurality of female terminals 24 housed in the connector housing 21 with at least arch-shaped connecting portions 27A and 27B and one side and the other side male terminals 26A. , 26B and is integrally held by the connector housing 21 in the vicinity of the connecting portion. This integral holding is achieved, for example, by insert molding the first bus bar member 51 and the second bus bar member 52 into one semi-cylindrical body 31 and the other semi-cylindrical body 32, respectively. .

  As shown in FIG. 6, the curved wall 22 is formed with a plurality of through holes 22h through which the plurality of male terminals 26 penetrate so as to protrude into the plurality of female terminal storage holes 22c. The plurality of through holes 22h are open at the center of the inner back portions of the corresponding female terminal storage holes 22c, and the plurality of male terminals 26 protruding into the plurality of female terminal storage holes 22c The plurality of female terminals 24 accommodated in the female terminal accommodation holes 22c are electrically connected to the fitting portions 24a having elasticity while being fitted with a predetermined contact pressure.

  Of the plurality of female terminals 24 housed in the curved wall 22, the first female terminal 24 attached to the first electric wire 11 is connected to a part of the plurality of male terminals 26 of the bus bar 25. Among the plurality of female terminals 24 accommodated in the curved wall 22, the plurality of second female terminals 24 attached to the second electric wire 12 are a plurality of the plurality of male terminals 26 of the bus bar 25, for example, 3 Two male terminals 26 are connected.

  Thereby, the joint connector 14 replaces the first electric wires 11 extending from the one end side of the wire harness 1 in the vicinity of the joint connector 14 among the plural electric wires 11 and 12 constituting the electric wire bundle 10 with the plural female terminals 24 and The bus bar 25 is spliced to a plurality of second electric wires 12 extending from the vicinity of the joint connector 14 to the other end of the wire harness 1. Here, for convenience of explanation, the case where three second electric wires 12 are spliced to one first electric wire 11 has been described, but an arbitrary corresponding to one first electric wire 11 is used. A plurality of second electric wires 12 may be spliced. A plurality of first electric wires 11 and a plurality of second electric wires 12 corresponding to the first electric wires 11 may be provided.

  Further, on the inner surface side of the pair of semi-cylindrical bodies 31 and 32 of the connector housing 21, it engages with any one of the annular recesses 13 b and the adjacent pair of annular projections 13 a of the corrugated tube 13. A pair of arc-shaped positioning ribs 31 s and 32 s that restrict relative movement of the tube 13 in the axial direction are provided.

  Further, the first bus bar member 51 and the second bus bar member 52 are either one of the fitting convex portion 53 forming the fitting contact portion 55 and the arch-shaped connecting portions 27A and 27B in the vicinity of the fitting concave portion 54, or Both may be provided with a stepped bending portion or the like.

  For example, as indicated by a dotted line on the lower side of FIG. 8A, the position of the fitting convex portion 53 in the thickness direction is adjusted between the arch portion 27r of the arch-shaped connecting portion 27B and the fitting convex portion 53. You may have a stepped bending part. Of course, as shown by a dotted line on the upper side of FIG. 8A, the arch portion 27r of the arch-shaped connecting portion 27B and the fitting convex portion 53 may form a straight integral connection shape.

  Next, the operation will be described.

  In the joint connector 14 of the present embodiment configured as described above, the pair of semi-cylindrical bodies 31 and 32 and the first and second bus bars that the connector housing 21 and the bus bar 25 can be easily attached to the wire bundle 10 are provided. An open state with the members 51 and 52 can be taken. Therefore, the workability of attaching the joint connector 14 to the wire bundle 10 is good.

  Further, when the connector housing 21 is in a cylindrical closed state, the first bus bar member 51 and the second bus bar member 52 are engaged with each other by the fitting contact portion 55 to be electrically connected, so that the electrically integrated bus bar 25 is configured. To do. Therefore, the number of terminals that are electrically connected to each other in the plurality of male terminals 26 can be increased, and the number of connections such as splice connections can be ensured.

  Furthermore, the fitting contact portions 55 of the first bus bar member 51 and the second bus bar member 52 do not protrude radially outward from the outer peripheral surface of the connector housing 21, and the plurality of male terminals 26 are connected to the connector housing 21. The connector housing 21 is housed in a state of being connected to the plurality of female terminals 24 therein. Therefore, the joint connector 14 is highly reliable and compact.

  In addition, in the joint connector 14 of the present embodiment, when the pair of semi-cylindrical bodies 31 and 32 of the connector housing 21 are closed in a cylindrical shape, the end of the arch-shaped connecting portion 27B of the second bus bar member 52 is provided. The provided fitting convex portion 53 is fitted into the fitting concave portion 54 provided at the end of the arch-shaped connecting portion 27 </ b> A of the first bus bar member 51, so that reliable conduction contact at the fitting contact portion 55 is achieved. State is secured. Therefore, the fitting contact portion 55 does not protrude radially outward from the outer peripheral surface of the connector housing 21. Moreover, since the fitting convex part 53 will be in the state clamped and fitted to the fitting recessed part 54 with the elastic deformation of the fitting recessed part 54, the fitting convex part 53 and the fitting recessed part 54 are sufficient predetermined contact. Contact is possible with the pressure Fs (see FIG. 8A).

  Moreover, in this embodiment, the fitting convex part 53 and the fitting recessed part 54 provided in the edge part of the arch-shaped connection part 27A, 27B of the 1st and 2nd bus-bar members 51 and 52 are the male terminals on one side. 26A and the radial plate surfaces 28a and 28b orthogonal to the male terminal 26B on the other side, the radial positions of the fitting convex portion 53 and the fitting concave portion 54 vary or change. In the specific region where the pair of plate surfaces 28a in the fitting recess 54 face in parallel, the pair of plate surfaces 28a, 28b facing the fitting projection 53 and the fitting recess 54 are fitted with a predetermined contact pressure. Make contact. Therefore, easy and reliable fitting at the fitting contact portion 55 and stable contact surface pressure and conduction can be ensured.

  In the wire harness 1 of this embodiment including such a joint connector 14, the bus bar 25 is simply moved in the axial direction of the wire bundle 10 and fitted to the plurality of female terminals 24 held in the connector housing 21. The first and second bus bar members 51 and 52 can be brought into contact with each other and can be made conductive at the same time as the pair of semi-cylindrical bodies 31 and 32 are closed in a cylindrical shape. The second electric wire 12 can be spliced. Therefore, the wire harness 1 is low in cost and high in reliability, which can sufficiently save the connecting portion.

  As described above, in the present embodiment, not only the workability to attach to the wire bundle 10 is good, but also the number of connections by combining the pair of bus bar members 51 and 52 housed in the pair of semi-cylindrical bodies 31 and 32. It is possible to provide a highly reliable and compact joint connector 14 and the wire harness 1 in which the coupling portion is not protruded from the outer peripheral surface of the connector housing 21 while ensuring sufficient.

  In this embodiment, since the bus bar 25 is integrally held by insert molding in the connector housing 21, the plurality of female terminals 24 are inserted into the plurality of female terminal storage holes 22 c of the connector housing 21 at appropriate times. The retaining claws 22d can be retained and locked and can be securely fitted to the plurality of male terminals 26. Therefore, the splice connection work is easy, and the splice connection portion can be sufficiently saved.

  In the above-described embodiment, the single connector housing 21 accommodates and holds both the bus bar 25 and the plurality of female terminals 24. However, the connector housing 21 includes the plurality of female terminals 24. The first housing segment on one side in the axial direction for storing and holding and the second housing segment on the other side in the axial direction for storing and holding the bus bar 25 may be divided, and the first housing segment and the second housing segment may be divided. Both segments may be coupled by fitting the bus bar 25 and the plurality of female terminals 24 while fitting on the opposite end sides.

  In the embodiment, the first bus bar member 51 and the second bus bar member 52 have plate surfaces 28a and 28b orthogonal to the male terminal 26A on one side and the male terminal 26B on the other side. The arch-shaped connecting portions 27A and 27B for connecting the plurality of male terminals 26 of the bus bar 25 are parallel to the axial direction of the wire bundle 10 in the same manner as the male terminal 26A on one side and the male terminal 26B on the other side. It may have.

  Furthermore, in one embodiment, the connector housing 21 is in a closed state and has a cylindrical shape, but may be a polygonal cylindrical shape or a flat cross-sectional shape.

  As described above, the present invention has good workability to the wire bundle, and the bus bar members housed in the pair of semi-cylindrical bodies are coupled together by fitting to ensure a sufficient number of connections. It is possible to provide a highly reliable joint connector and wire harness in which the coupling portion is not protruded from the outer peripheral surface of the connector housing. The present invention as described above is useful for a tubular joint connector and a wire harness including the same.

DESCRIPTION OF SYMBOLS 1 Wire harness 10 Wire bundle 11 1st electric wire (plural electric wires)
12 Second wire (multiple wires)
14 Joint connector 21 Connector housing 22a, 22b Both-ends edge part 22c Female terminal accommodation hole 24 Several female terminals (1st female terminal, 2nd female terminal)
25 Busbar 26 Multiple Male Terminals 26A Multiple Male Terminals (Male Terminal on One Side)
26B Multiple male terminals (male terminals on the other side)
27A Arch-shaped connecting part (the other semi-annular part, a pair of semi-annular parts)
27B Arch-shaped connecting part (one semi-annular part, a pair of semi-annular parts)
28a, 28b Plate surface 31 One semi-cylindrical body (a pair of semi-cylindrical bodies)
31g Concave portion 31v Inner protruding wall portion 32 The other semi-cylindrical body (a pair of semi-cylindrical bodies)
32p Protruding portion 33 Hinge portion 51 First bus bar member (the other bus bar member, a pair of bus bar members)
52 second bus bar member (one bus bar member, a pair of bus bar members)
53 Fitting convex part 54 Fitting concave part 55 Fitting contact part

Claims (4)

A connector housing that extends in the circumferential direction of the wire bundle and has both edge portions facing each other in the circumferential direction, and a plurality of female terminals that are arranged in parallel so as to be spaced apart from each other in the circumferential direction while extending in the axial direction of the wire bundle. And a bus bar in which a plurality of male terminals held by the connector housing to be connected to the plurality of female terminals are integrally formed in a comb-teeth shape,
The connector housing is constituted by a pair of semi-cylindrical bodies that are hinged to each other at one end side in the circumferential direction and closed in a cylindrical shape,
The bus bar is configured by one bus bar member held by one of the pair of semi-cylindrical bodies and the other bus bar member held by the other semi-cylindrical body of the pair. ,
The one and the other bus bar members are fitted and electrically connected to each other on the other end side in the circumferential direction of the pair of semi-cylindrical bodies when the pair of semi-cylindrical bodies are closed in the cylindrical shape. A joint connector characterized in that a mating contact portion is provided. The one bus bar member includes a plurality of male terminals on one side that are spaced apart from each other in the circumferential direction, one semi-annular portion that integrally couples the male terminals on the one side, and the one semi-cylindrical body. A fitting convex part integrally supported by the one semi-annular part on the other end side in the circumferential direction,
The other bus bar member includes a plurality of male terminals on the other side that are separated from each other in the circumferential direction, the other semi-annular portion that integrally couples the male terminals on the other side, and the other semi-cylindrical body. A fitting recess integrally supported by the other semi-annular portion on the other end side in the circumferential direction,
The joint connector according to claim 1, wherein when the pair of semi-cylindrical bodies are closed in the cylindrical shape, the fitting convex portion is fitted into the fitting concave portion. The one bus bar member and the other bus bar member are each composed of a conductive metal plate,
The male terminal on the one side and the male terminal on the other side each extend in the axial direction of the wire bundle,
The joint according to claim 2, wherein the fitting convex part and the fitting concave part have plate surfaces orthogonal to the one-side male terminal and the other-side male terminal. connector. A wire harness comprising the joint connector according to any one of claims 1 to 3,
The first electric wire among the plurality of electric wires constituting the electric wire bundle is connected to the first female terminal among the plurality of female terminals,
Of the plurality of wires constituting the wire bundle, a plurality of second wires are connected to a plurality of second female terminals corresponding to the first female terminals of the plurality of female terminals. Wire harness.

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