JP2007123135A - Joint connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To connect a plurality of electric wires by improving reliability in electrical connection and reducing the number of components. <P>SOLUTION: A belleville spring-shaped connection section 2a elastically sandwiched by sidewalls 1a of a bus bar 1, a connection section 2b, and conductor crimping section 2c and a coating crimping section 2d are provided at the front end, center, and rear end of a connection terminal 2, respectively. The conductor of the electric wire 3 is connected to the conductor crimping section 2c and a coating 3b is connected to the coating crimping section 2d in the connection terminal 2 in use. The connection section 2b of the connection terminal 2 is inserted into a notching 1b in the bus bar 1, and the connection section 2a is held elastically between the sidewalls 1a of the bus bar 1, thus allowing the bus bar 1 to make continuity with the electric wire 3 via the connection terminal 2 and allowing the electric wires 3 of the connection terminal 2 to conduct electricity one another simultaneously. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a joint connector having a simple structure.

  Conventionally, many types of joint connectors for branching one electric wire into a plurality of power sources have been disclosed. For example, in order to branch a plurality of branch lines from the trunk line of a harness circuit, a splice joint method is generally used in which the intermediate part of the trunk line is stripped and the branch line is crimped and branched, for branching the circuit at the trunk end A joint connector system is used in which connectors are provided and both main and branch lines are branched using connectors and crimp terminals.

  With the splice joint method described above, it is necessary to move to the dedicated process once in the middle of the harness production line and perform joint processing, and once processed, production efficiency cannot be accommodated. Is bad. In addition, there is a problem in the reliability of electrical connection, such as the standard method for handling insulation by taping.

  In the joint connector system, the use of crimp terminals ensures the same electrical connection reliability as a general-purpose connector, and since multiple joint patterns can be set in advance, ensuring pattern setting margins and improving harness assembly Although realized, there is a problem of an increase in the amount of electric wires used due to an increase in the number of components and an increase in circuit length. Furthermore, since the terminal crimping process is performed on the branch wire terminal in the initial stage of the harness manufacturing, it is not necessary to move to another process in the middle of the harness manufacturing line, so the production efficiency is good. Since the number of components such as connectors and terminals increases, there is a problem in cost.

  An object of the present invention is to provide a simple joint connector that improves the reliability of electrical connection and reduces the number of parts.

  The technical feature of the joint connector according to the present invention for achieving the above-mentioned object comprises a metal bus bar and a connection terminal, the bus bar having a U-shaped cross section, and provided with cuts on both side walls, and the connection The terminal includes a connecting portion that fits into the notch of the bus bar, and a spring portion that is provided at a front end and is sandwiched between the side walls, and electrically connects the connection terminal and the bus bar via the spring portion that is sandwiched between the side walls. There is.

  According to the joint connector according to the present invention, it is possible to easily connect using the spring portion of the connection terminal and the metal bus bar.

  The present invention will be described in detail based on the embodiments shown in the drawings.

  The joint connector of the first embodiment is composed of a bus bar 1 shown in FIG. 1 and a connection terminal 2 shown in FIG. 2, and the metal bus bar 1 has a U-shaped cross section and a plurality of side walls 1a on both sides. A cut 1b is provided.

  Also, a disc spring-like connection portion 2a elastically sandwiched between the side walls 1a of the bus bar 1 is provided at the front end of the connection terminal 2, a connecting portion 2b is provided at the central portion, a core crimping portion 2c, and a covering crimping portion 2d are provided at the rear end. It has been.

  The plate thickness of the bus bar 1 is larger than the plate thickness of the connection terminal 2, but each metal plate is punched and bent.

  In use, the electric wire 3 is connected to the connection terminal 2 by connecting the core wire 3a to the core wire crimping portion 2c and connecting the coating 3b to the coating crimping portion 2d as shown in FIG. Then, as shown in FIG. 4, the connecting portion 2 b of the connection terminal 2 is inserted into the notch 1 b of the bus bar 1, and the connection portion 2 a is elastically sandwiched between the side walls 1 a of the bus bar 1.

  As a result, the bus bar 1 is electrically connected to the electric wire 3 via the connection terminal 2, and at the same time, the electric wires 3 of the connection terminal 2 are electrically connected to each other. Further, this connection mode can be easily changed by inserting / removing the connection portion 2 a of the connection terminal 2 with respect to the bus bar 1.

  Further, this connection state can be protected by attaching a cover 4 as shown in FIG.

  FIG. 6 is a perspective view of the connection state of the second embodiment. The bus bar 11 is provided with a side wall 11a and a notch 11b as in the first embodiment, and further at one end of the bus bar 11 is provided with a core wire crimping portion 11c and a covering crimping portion 11d as with the connection terminal 2. For example, two wires 13 and 14 are integrally connected to the core wire crimping part 11c and the covering crimping part 11d.

  Then, the connection terminal 2 can be fitted into the notch 11b of the bus bar 11 as in the first embodiment, and the connection portion 2a can be sandwiched in the side wall 11a.

  In the second embodiment, the trunk wires 13 and 14 can be branched into the branch wires 3, but the number of wires connected to the bus bar 11 may be one or more various. Also in the second embodiment, it is preferable to attach a cover.

  In addition, in Example 1, 2, although the connection part 2a was made into the disk spring shape, it is good also as another shape, for example, a cross-sectional V-shaped, U-shaped leaf | plate spring.

3 is a perspective view of a bus bar according to Embodiment 1. FIG. It is a perspective view of a connection terminal. It is a perspective view of a connection terminal in the state where an electric wire was connected. It is a perspective view of the state which connected the connecting terminal to the bus bar. It is a perspective view in the state where a cover was attached. It is a perspective view of the state where the connection terminal was fitted in the bus bar of Example 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 11 Bus bar 1a, 11a Side wall 1b, 11b Cut 2 Connection terminal 2a Connection part 2b Connection part 2c, 2d, 11c, 11d Crimp part 3, 13, 14 Electric wire

Claims (4)

  The bus bar is made of a metal bus bar and a connection terminal. The bus bar has a U-shaped cross section and is provided with cuts on both side walls. The connection terminal is provided at the front end and between the side wall and the connecting part. A joint connector, wherein the connection terminal and the bus bar are electrically connected through the spring portion sandwiched between the side walls.   The joint connector according to claim 1, wherein the spring portion is a disc spring.   The joint connector according to claim 1, wherein a crimp portion is provided at a rear portion of the connection terminal, and an electric wire is connected to the crimp portion.   The joint connector according to claim 1, wherein a crimp portion is provided on the bus bar, and an electric wire is connected to the crimp portion.

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