JPH0549139A - Method of forming circuit by bus bar - Google Patents

Abstract

PURPOSE:To form a new circuit by a bus bar to be supplied to a circuit board. CONSTITUTION:Two types of bus bars Y1, Y2 to be supplied to the same bus bar circuit board are coupled by a coupling piece y1 having substantially the same width as that of a tab terminal y2 of the bars, the piece is cut to separate the bars Y1, Y2, and the piece y1 is bent to provide tab terminals y1', y1'' at any one of the two types of the bars.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus bar which constitutes an internal circuit in an electric junction box or the like used for interconnecting wire harnesses, and a circuit forming method using the bus bar.

[0002]

2. Description of the Related Art Connection point groups 3B and 3 shown in FIG.
Two busbars having C and connection point groups 3D and 3E are used, and either of the busbars is connected to the connection point 3A to the specified wire harness to connect the A circuit or the B circuit.
In forming a circuit (FIGS. 4A and 4B), the bus bar 5A has a three-branch configuration having the connection points 3A, 3B, 3C, and the bus bar 5B has the connection points 3A, 3D, 3.
Busbars 5 each formed in a three-branch configuration with E
Connection points 3A are provided on both A and 5B.
A tab-shaped contact portion 6 is erected at each connection point of the bus bars 5A, 5B and the like to form each connection point and is connected to the relay 4 or the wire harness 2.

When forming the A circuit, the connecting portion of the connecting point 3A of the bus bar 5B is cut (cut at the position 7'in the figure), and the bus bar 5A and the connecting point 3A are cut to form a joint box. 1 to form the A circuit of FIG. 4 (A).

When forming the B circuit, the connection point 3A of the bus bar 5A is cut (cut at the position 7'in the drawing), and the bus bar 5B and the connection point 3A are cut and arranged in the joint box. Installed, Figure 4
The circuit B of (B) is formed.

In the above circuit forming method, two common connection point groups are respectively connected by two busbars, and one of the two busbars is connected to another specific connection point to form two types of circuits. In forming A and B, the same bus bars 5A and 5B each having two connection point groups 3B, 3C and 3D, 3E and a specific connection point 3A are used, and a part thereof is cut to have the same configuration. Different circuit A for joint box 1
Alternatively, the circuit B is alternatively formed (Japanese Patent Laid-Open No. 61-6).
6386).

[0006]

In the above prior art, since two types of bus bars that are independent from the beginning among the bus bar wiring boards of the same layer are used, the bus bars are collectively put on the wiring board. There is a problem in the manufacturing process that the mounting method cannot be used, and either of the bus bars 5A or 5B must be combined later, which causes problems such as an increase in equipment cost and a long combination work time.

In view of the above points, the present invention is to provide a desired circuit by supplying the above two kinds of bus bars on the bus bar wiring board in a connected state.

[0008]

In order to achieve the above-mentioned object, in the present invention, two kinds of bus bars supplied on the same bus bar wiring board are provided with connecting pieces having substantially the same width as the tab terminals of the bus bar. It is characterized in that a tab terminal is provided on either one of the two kinds of bus bars by connecting them, cutting the connecting piece portion to separate the two kinds of bus bars, and bending the connecting piece.

[0009]

A plurality of busbars can be simultaneously supplied onto the busbar mounting plate in a connected state, and a new circuit can be formed by separating the connecting portion and providing tab terminals on either busbar.

[0010]

FIG. 1 shows an electric junction box X in which bus bars Y are arranged on each of the laminated wiring boards x, and tab terminals y bent from each bus bar Y are connected to fuse insertion portions P,
The relay insertion portion Q, the connector insertion portion R, and other various insertion portions are projected.

[0011] Figure 2 shows a state in which the bus bar Y ₁ and bus bar Y ₂ is supplied onto the wiring board in a state of being connected by a connecting piece y _1, connecting piece y ₁ in bus bar Y _1, Y ₂ It has the same width as the tab terminal y ₂ which has already been erected. In the above description, the connecting piece y ₁ is cut along the dotted line L ₁ to separate the bus bar Y ₁ and the bus bar Y _2, and the connecting piece y ₁ is bent along the dotted line L ₂ portion to thereby form the tab terminal y _{1 at the} bus bar Y ₂ . '(Fig. 2
(B)).

On the other hand, the connecting piece y ₁ is cut at the dotted line L ₃ portion to separate the bus bar Y ₁ and the bus bar Y ₂ and the connecting piece y ₁ is bent at the dotted line L ₂ portion so that the bus bar Y ₁ is bent.
A tab terminal y ₁ ″ is formed at (2C).

[0013]

As described above, the present invention has at least 2
Two kinds of bus bars are connected by a connecting piece having a width substantially the same as the tab terminal of the bus bar, the connecting piece portion is cut to separate the two kinds of bus bars, and the connecting piece is bent to form two kinds of bus bars. Since the tab terminal is provided on either one of the busbars, a plurality of busbars can be simultaneously supplied on the same wiring board, and by separating the busbars, a new circuit can be formed for the busbars.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of an electric junction box.

FIG. 2A is a perspective view of a plurality of bus bars supplied on a mounting plate in a connected state, FIG. 2B is a perspective view of a state in which tab terminals are formed on one bus bar separately, and FIG. FIG. 3 is a perspective view showing a state where tab terminals are formed separately on the other bus bar.

FIG. 3 is a perspective view of a bus bar used for forming a circuit of a conventional example.

4A and 4B show separate circuits configured using the bus bar shown in FIG.

[Explanation of symbols]

Y ₁ , Y ₂ bus bar y ₁ connecting piece y ₂ tab terminal y ₁ ′, y ₁ ″ tab terminal

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[Procedure amendment]

[Submission date] December 26, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

When forming the A circuit, the connecting portion of the connecting point 3A of the bus bar 5B is cut (cut at the position of 7 "in the figure), and the bus bar 5B and the connecting point 3A are cut to form a joint box. 1 to form the A circuit of FIG. 4 (A).

Claims (1)

[Claims] 1. At least two types of busbars are joined together with a connecting piece having substantially the same width as a tab terminal of the busbar, and the connecting piece portion is cut to separate the two types of busbars and the connecting piece is folded. A circuit forming method using a bus bar, wherein a tab terminal is provided on one of the two types of bus bars by bending.