JPS5854808Y2 - Connection branch box for electrical wiring - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electrical wiring junction branch box (hereinafter abbreviated as JB) used in a wire harness system (wire assembly system) to which a large number of electrical components are connected.

For example, in automobile wiring harnesses, one to several JBs are used for the purpose of simplifying wiring.

Conventional JB is a connector with electric wires connected and various electrical parts (relays, fuses, circuit breakers, etc.).
It was installed in the JB, and branch connections were made to the electric circuit using the bus bar inside the JB.

The present invention changes the circuit configuration within this JB from the busbar configuration of the conventional JB to a configuration that also uses some electric wires, which reduces costs, reduces the difficulty of circuit design, and increases electrical reliability. It is aimed at the effect of

The invention will be explained below with reference to the illustrative drawings.

Figure 1 is an external perspective view of the JB according to the present invention, and Figure 2 is the
FIG. 3 is a circuit configuration diagram of the JB of the present invention shown in the figure.

Note that FIG. 3 is a diagram showing the circuit configuration inside the JB using only conventional bus bars.

In Fig. 1 showing the above-mentioned present invention, 1 is the JB main body, 2 and 2' are electric wires (covered electric wires), 3 is a connector, 4.4', 4
” is a socket for electrical parts.

In Fig. 2, 2' is a direct connection electric wire, 6 is a bus bar, 7 is the bottom plate or insulating plate of the JB main body, 8 is a female terminal at the end of the electric wire 2' (see Fig. 4), and 9 is a bus bar 6. These terminals are male terminals (see Fig. 5), and the A portions of these terminals 8 and 9 are for the electrical component socket 4 of Fig. 1, and the B portions are for the electrical component socket 4' of Fig. 1. The C portions respectively form sockets 4'' for electrical components shown in FIG.

Also, the D portion of the terminal 9 forms a terminal for the connector 3 of the electric wire 2 in FIG.

The conventional JB branch connection circuit diagram is shown in Figure 3. In the figure, 6 is a bus bar, the first layer bus bar is shown with diagonal lines, and the second layer bus bar is shown with dots. ing.

7 is an insulating plate. Further, 9 is a male terminal at the end of the bus bar 6, and the A part of the terminal 9 corresponds to the socket 4 for electrical parts shown in FIG. 1, and the B part corresponds to the socket 4' for electrical parts shown in FIG. A socket with a C portion corresponding to the electrical component socket 4'' of FIG. 1 is formed, respectively.

Also, the D portion of the terminal 9 serves as a terminal for a wire connector.

Now, in the present invention, as shown in Fig. 2 and Figs. 4 and 5, in a circuit without branches in which one electric wire is connected to one electric component terminal, the electric wire and the component terminal are directly connected. Connected.

In addition, in circuits with branches in which electric wires, electrical component terminals, or both are connected so that three or more locations have the same potential (in terms of branches, one or more), or circuits that connect electrical component terminals, each The electric wires and component terminals are connected via bus bars.

That is, FIG. 4 and FIG. 5 are perspective views showing the electric wire direct connection and the bus bar branch connection applied in the above-mentioned present invention, and the second
The terminal 9 in part C of the figure has a female-to-female terminal 9 shown in FIG.
' is inserted and connected to the electrical component terminal 10.

In addition, E is a branching part, and the same code|symbol as FIG. 1 and 2 shows the same part.

The JB according to the present invention as described above has a simpler web bar configuration than the conventional JB, so it is possible to reduce the bus bar material cost and processing cost, and the number of pins on the wire side connector is also reduced, so the cost of the connector is also reduced. .

Furthermore, as can be seen from FIGS. 2 and 3, it may be possible to reduce the number of busbar layers, which greatly reduces the difficulty of busbar circuit design.

Furthermore, as part of the bus bar is abolished, the number of electrical contact points in the entire JB is reduced, which increases electrical reliability, and the number of parts is reduced, making it possible to reduce JB assembly costs.

Note that the present invention is not limited to automobile wire harnesses, but can of course be applied to other uses, such as wiring within equipment control devices in factories and the like.

[Brief explanation of the drawing]

Figure 1 is an external perspective view of the electrical wiring junction box of the present invention;
Figure 2 is a plan view showing the internal circuit configuration of the connection branch box of the present invention shown in Figure 1, Figure 3 is a plan view showing the internal circuit configuration of the conventional connection branch box, and Figure 4 is the connection branch of the present invention. FIG. 5 is a perspective view illustrating a direct connection between electric wires and electrical components constituting an internal circuit in a box, and FIG. There is. 1... Connection branch box body for electrical wiring, 2.2'.
...Wire, 3...Connector, 4.4', 4
”... Socket for electrical components, 6... Bus bar, 7... Connection branch box main body bottom plate or insulating plate, 8... Electric wire end terminal, 9... Terminal at one end of the bus bar, 10... Electrical component terminal.

Claims (3)

[Scope of utility model registration request] (1) Connections for interconnecting or branching electric wires, electric components, or a plurality of both; in branch boxes, in circuits without branches where one electric wire is connected to one electric component terminal; In circuits with branches where the wires and component terminals are directly connected and three or more wires, electrical component terminals, or both are connected so that they have the same potential, or in circuits that connect electrical component terminals. A connection branch box for electrical wiring, characterized in that each electric wire and component terminal is connected via a bus bar. (2) One end of the bus bar to be connected to the electric wire or electric component terminal is arranged to match the terminal arrangement within the electric wire connection connector or the electric component terminal arrangement so that it can be fitted and connected to the electric wire connection connector or the electric component terminal, and A connection branch box for electrical wiring according to claim (1) of the utility model registration, which forms connection terminals. (3) Utility model registration request for connecting the wire and the electrical component by fixing the mating terminal that fits into the electrical component terminal to the end of the wire in the part where the wire is directly connected to the electrical component terminal. A junction branch box for electrical wiring as described in scope item (1).