JP2013235658A - Joint connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily connect an electric wire, and save a space.SOLUTION: A joint connector 100 comprises: plural plate-like bus bars 10, 20 that connect plural harnesses 50 having plural electric wires 51, 52, that connect the electric wires 51, 52 of each harness 50 for each electric wire in a group, and on which recesses 11, 21 and protrusions 12, 22 are alternately formed; and a housing 110 holding the bus bars 10, 20. Hole sections 14, 24 connected to connection terminals 53, 54 provided at tips of the electric wires 51, 52 are formed on the protrusions 12, 22 of the bus bars 10, 20, and the plural bus bars 10, 20 are arranged in mounting holes 111, 112 of the housing 110 in a multi-stage manner so that the protrusions 12, 22 and the recesses 21, 11 are overlaid in an insertion direction of the connection terminals 53, 54.

Description

  The present invention relates to a joint connector that groups and connects a plurality of electric wires.

  A joint connector having a bus bar is used to connect a plurality of wires having a plurality of wires, such as twisted wires, grouped for each wire (see Patent Document 1). In this joint connector, as shown in FIG. 11, a plurality of bus bars 1 and 2 are arranged along the arrangement direction of the electric wires 4 and 5, and the electric wires 4 and 5 to be grouped are pulled out from the twisted wires 3. , 2 are connected.

JP 2010-102952 A

  However, in the conventional joint connector disclosed in Patent Document 1, a plurality of bus bars 1 and 2 are arranged in the arrangement direction of the electric wires 4 and 5 to be grouped, so that the number of electric wires to be grouped is increased. In this case, the connection positions of the electric wires 4 and 5 to the bus bars 1 and 2 are separated. For this reason, the length which unwinds the twist wire 3 becomes long, and there exists a problem that the connection operation | work of an electric wire becomes complicated and it is hard to attain space saving.

  An object of the present invention is to provide a joint connector that solves the above-described problems caused by the prior art and can easily connect electric wires and save space.

  A joint connector according to the present invention is a joint connector for connecting a plurality of harnesses having a plurality of electric wires and grouping and connecting the wires of each harness for each electric wire, and a plate in which concave portions and convex portions are alternately formed. A plurality of shaped bus bars and a housing for holding the bus bars, and the convex portion is formed with a terminal connection portion to which a connection terminal provided at a distal end portion of the electric wire is connected. The housing is arranged in multiple stages in the housing such that the convex portion of one bus bar and the concave portion of another bus bar overlap each other in the insertion direction of the connection terminal.

  According to the joint connector according to the present invention, the plurality of plate-like bus bars in which the concave portions and the convex portions are alternately formed, and the terminal connection portions are formed on the convex portions, the convexity of one bus bar is formed in the insertion direction of the connection terminals. The housing is arranged in multiple stages so that the recesses of the other bus bars overlap. For this reason, the arrangement space of the bus bar can be reduced, and the plurality of electric wires can be grouped and connected to the bus bar in a simply arranged state without being unwound, so that the connection work can be easily performed.

  In one embodiment of the present invention, the housing is formed in a cylindrical shape, and the plurality of bus bars are formed in an arc shape corresponding to the shape of the housing.

  In another embodiment of the present invention, the terminal connection portion is a hole into which the connection terminal is inserted and connected, and the connection terminal is inserted into the hole and connected to the bus bar.

  In still another embodiment of the present invention, the hole includes an elastic conductive member that elastically contacts the connection terminal on an inner peripheral side thereof.

  In still another embodiment of the present invention, the housing has partition walls that respectively isolate the connection terminals introduced from the terminal introduction port.

  According to the present invention, electric wires can be easily connected and space saving can be achieved.

It is a disassembled perspective view which shows the joint connector which concerns on one Embodiment of this invention. It is A-A 'sectional drawing of FIG. It is B-B 'sectional drawing of FIG. It is C-C 'sectional drawing of FIG. It is sectional drawing which shows the other example of the connecting terminal of the joint connector. It is a perspective view which shows the structure of the bus bar of the joint connector which concerns on other embodiment of this invention. It is sectional drawing for demonstrating the connection state of the connecting terminal and bus bar in the joint connector. It is a disassembled perspective view which shows the joint connector which concerns on other embodiment of this invention. It is a perspective view which shows the joint connector. It is a perspective view which shows the use condition of the joint connector. It is the schematic of the conventional joint connector.

  Hereinafter, a joint connector according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is an exploded perspective view showing a joint connector according to an embodiment of the present invention. 2 is a cross-sectional view taken along line A-A 'of FIG. 1, FIG. 3 is a cross-sectional view taken along line B-B' of FIG. 1, and FIG. 4 is a cross-sectional view taken along line C-C 'of FIG. As shown in FIG. 1, the joint connector 100 connects a plurality of harnesses 50 having a plurality of electric wires 51 and 52 such as twisted wires, and can be used for network communication such as CAN.

  The joint connector 100 connects the electric wires 51 and 52 of each harness 50 in groups for each electric wire. The joint connector 100 according to the present embodiment includes a plurality of bus bars 10 and 20 made of a plate-like metal member, and a housing 110 made of a resin molded member that holds the bus bars 10 and 20.

  The housing 110 has, for example, a rectangular outer shape, and is formed in the front surface portion 110b and slit-shaped mounting holes 111 and 112 formed in the upper surface portion 110a for mounting the bus bars 10 and 20 on the housing 110. In addition, a terminal introduction port 113 for introducing the connection terminals 53 and 54 attached to the distal ends of the electric wires 51 and 52 of the harness 50 into the housing 110 is provided.

  As shown in FIG. 4, terminal housing chambers 115 extending from the terminal introduction port 113 are formed inside the housing 110, and the terminal housing chambers 115 are partitioned by the partition walls 114 so as to ensure mutual insulation. It has been. Thereby, the connection terminals 53 and 54 inserted from the terminal introduction port 113 are connected to the bus bars 10 and 20 without short-circuiting each other, and the connection systems can be reliably grouped.

  Although the housing 110 of this example is formed of an integrally molded member, it may be constituted by a plurality of members as a structure that can be divided, and each member may be locked by a known lock mechanism or the like to be used as one housing 110. . As the locking mechanism, for example, an engagement piece provided with an engagement hole and an engagement portion provided with an engagement protrusion that engages with the engagement hole of the engagement piece are engaged and locked. Is mentioned.

  On the other hand, the bus bars 10 and 20 each have a comb-like outer shape in which concave portions 11 and 21 and convex portions 12 and 22 are alternately formed in a straight line via connecting portions 13 and 23, respectively. Hole portions 14 and 24 into which the connection terminals 53 and 54 are inserted and connected are formed in the convex portions 12 and 22 of the bus bars 10 and 20.

  The bus bars 10, 20 are mounted in the mounting holes 111, 112 of the housing 110, so that the projections 12, 22 and the recesses 21, 11 in the insertion direction of the connection terminals 53, 54 into the terminal introduction port 113 are provided. Are arranged in multiple stages in the insertion direction of the connection terminals 53, 54. In addition, in the vicinity of both ends of the bus bars 10 and 20 in the longitudinal direction, for example, a predetermined distance is provided in the vicinity of the inner wall surfaces of both ends of the mounting holes 111 and 112 in order to prevent the bus bars 10 and 20 from being accidentally detached from the mounting holes 111 and 112. Protrusions 10a and 20a that are hooked with a pressure of 2 are formed. In addition, when the bus bars 10 and 20 are mounted in a state where they do not fall off the mounting holes 111 and 112 due to press-fitting or the like, the protrusions 10a and 20a may not be provided.

  On the other hand, the connection terminals 53 and 54 include connection portions 53a and 54a inserted and fitted into the holes 14 and 24 of the bus bars 10 and 20, respectively, and core wire crimping portions 53b and 54b to which the core wires of the electric wires 51 and 52 are crimped. And electric wire holding portions 53c and 54c for holding the electric wires 51 and 52. The connection terminals 53 and 54 may be of a general structure, but the connection portions 53a and 54a of the connection terminals 53 and 54 and the holes 14 and 24 have a predetermined contact pressure during insertion fitting. It is designed to be fitted and connected by surface contact.

  In the joint connector 100 configured as described above, the group of the electric wires 51 of each harness 50 is connected by the bus bar 10, and the group of the electric wires 52 is connected by the bus bar 20. The electric wires 51 and 52 can be grouped in a state where they are arranged in a line by simply inserting the connection terminals 53 and 54 into the terminal introduction ports 113 provided every other one and connecting them to the bus bars 10 and 20. Therefore, the electric wires 51 and 52 of the harness 50 can be connected without unraveling as in the prior art, and the electric wire connecting work can be facilitated. Further, since the distance in the arrangement direction between the bus bars 10 and 20 can be shortened, the joint connector 100 can be reduced in size, and the installation space and the like can be saved.

  The connection terminals 53 and 54 may have a structure as shown in FIG. That is, the connection terminals 53 and 54 are hooked on the opening peripheral portions of the hole portions 14 and 24 by the connection portions 53a and 54a inserted and fitted into the hole portions 14 and 24 of the convex portions 12 and 22, respectively, and are prevented from coming off. Therefore, the wings 53d and 54d may be further provided. The wings 53d and 54d are formed in an umbrella shape or a hook shape, for example. In this way, the connection between the connection terminals 53 and 54 and the bus bars 10 and 20 can be further ensured.

  FIG. 6 is a perspective view showing a structure of a bus bar of a joint connector according to another embodiment of the present invention. Moreover, FIG. 7 is sectional drawing for demonstrating the connection state of the connecting terminal in a joint connector, and a bus bar. As shown in FIGS. 6 and 7, in the joint connector according to the present embodiment, the holes 14 and 24 of the bus bars 10 and 20 are connected to the connection portions 53 a and 54 a of the connection terminals 53 and 54 on the inner peripheral side thereof. It is formed so as to have a so-called push nut structure or speed nut structure provided with elastic pieces 14a, 24a that are in elastic contact. With such a structure, the connection terminals 53 and 54 are more reliably connected to the holes 14 and 24 of the bus bars 10 and 20 with a predetermined contact pressure, and the wings 53d and 54d as described above are connected. It is not necessary to form the portions 53a and 54a.

  FIG. 8 is an exploded perspective view showing a joint connector according to still another embodiment of the present invention. FIG. 9 is a perspective view showing the joint connector, and FIG. 10 is a perspective view showing a use state of the joint connector. Hereinafter, the same reference numerals are given to the parts that have already been described, and description thereof will be omitted. As shown in FIGS. 8 and 9, the joint connector 100 according to the present embodiment is formed in an arc shape to be mounted in a cylindrical housing 110A having a separable structure and mounting grooves 111a and 112a of the housing 110A. In addition, a plurality of bus bars 10A and 20A having a multi-partition structure are provided.

  The bus bars 10A and 20A are configured in an annular shape in accordance with the shape of the housing 110A by connecting arc-shaped portions by connecting portions 15 and 25 in the mounting grooves 111a and 112a, respectively. A plurality of terminal introduction ports 113 are formed so as to be arranged in a circle according to the cylindrical shape of the housing 110A.

  The housing 110 </ b> A is formed such that one end side of the divided portion is connected by a hinge portion 90 and the other end side can be fixed by a lock portion including an engagement piece 91 and an engagement hole 92. Accordingly, when the bus bars 10A and 20A are mounted in the mounting grooves 111a and 112a with the housing 110A open as shown in FIG. 8 and the housing 110A is closed as shown in FIG. 9, the housing 110A has a central hole 119. The joint connector 100 according to the embodiment can be formed.

  As shown in FIG. 10, the joint connector 100 having such a structure can achieve the same effects as the joint connector, and can pass another harness 59 through the center hole 119 of the housing 110 </ b> A. The degree of freedom of installation of the joint connector 100 can be improved. Moreover, since it can connect by the circular shape match | combined with the external shape of the harness (not shown) which has the electric wires 51 and 52, it can connect without complicating the wiring form of the electric wires 51 and 52 from a harness. It becomes possible.

  In the above-described embodiment, a joint connector in which two bus bars in which concave portions and convex portions are alternately formed are arranged in two stages so that the convex portions and concave portions of each bus bar overlap in the insertion direction of the connection terminal. The twisted wires that bundled two wires are grouped into two for each wire. However, when multiple harnesses that bundle three or more wires are grouped for each wire, If you use a joint connector that is arranged in multiple stages so that the bus bars with alternating parts are grouped together, the convex part of one bus bar and the concave part of the other bus bar overlap in the insertion direction of the connection terminal Good. More specifically, when a harness having n wires (n is 3 or more) is grouped for each wire, the width of the concave portion of each bus bar is set to n-1 times or more the width of the convex portion, and a plurality of bus bars May be arranged in multiple stages so that one convex portion and n−1 concave portions overlap in the insertion direction of the connection terminal.

10, 10A, 20, 20A Bus bar 10a, 20a Protrusion part 11, 21 Concave part 12, 22 Convex part 13, 23 Connection part 14, 24 Hole part 14a, 24a Elastic piece 15, 25 Connection part 50 Harness 51, 52 Electric wire 53, 54 Connection terminal 53a, 54a Connection part 53b, 54b Core wire crimping part 53c, 54c Electric wire holding part 53d, 54d Wing part 100 Joint connector 110, 110A Housing 111, 112 Mounting hole 111a, 112a Mounting groove 113 Terminal inlet 114 Joint connector 115 Terminal accommodation room

Claims (5)

It is a joint connector for connecting a plurality of harnesses having a plurality of electric wires and grouping and connecting the electric wires of each harness for each electric wire,
A plurality of plate-shaped bus bars in which concave and convex portions are alternately formed;
A housing for holding the bus bar,
The convex portion is formed with a terminal connection portion to which a connection terminal provided at a tip portion of the electric wire is connected,
The plurality of bus bars are arranged in multiple stages on the housing such that the convex portion of one bus bar and the concave portion of another bus bar overlap in the insertion direction of the connection terminal. The joint connector according to claim 1, wherein the housing is formed in a cylindrical shape, and the plurality of bus bars are formed in an arc shape corresponding to a shape of the housing. The joint connector according to claim 1, wherein the terminal connection portion is a hole into which the connection terminal is inserted and connected, and the connection terminal is inserted into the hole and connected to the bus bar. The joint connector according to claim 3, wherein the hole includes an elastic conductive member that elastically contacts the connection terminal on an inner peripheral side thereof. The joint connector according to any one of claims 1 to 4, wherein the housing includes partition walls that respectively isolate connection terminals introduced from the terminal introduction port.

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