JP2001268745A - Junction box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lead out an ECU connector from the original direction of an electric circuit even when the direction of placement of the ECU connector accommodated within a junction box is converted in the right-angle direction. SOLUTION: An internal circuit consisting of a wire and a pressure contact connected to the wire and an electronic control unit (ECU) are accommodated within the junction box, the ECU connector connected to conductors of ECU is mounted on a board, the internal circuit and ECU conductors are connected via the ECU connector, many wires are laid in parallel in the X direction on the insulated board located at the upper part of the ECU, the ECU connectors are located in parallel in the X direction and the wires in the Y direction is cross-wired on the insulated board, the wires in the Y direction are welded or caulked at the position crossing the wires in the X direction, the wires in the Y direction are connected with the ECU connector via the pressure-contact terminal, and thereby the ECU connector is connected with the wires in the X direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shunt box connected to a wire harness for an automobile, and more particularly, to a connection position between a conductor of an electronic control unit housed in a junction box and an electric wire forming an internal circuit. It is intended to be able to set the required orientation.

[0002]

2. Description of the Related Art In recent years, a junction box connected to a wire harness for an automobile sometimes contains an electronic control unit (hereinafter referred to as an ECU) inside. For example, as shown in FIG. 5, an electric wire (single-core wire) 4 is provided between an upper case 1 and a lower case 2 with an insulating plate 3 interposed therebetween.
And a bus bar (not shown) containing the pressure contact terminal 5 to be pressed against the electric wire, an ECU 7 mounted on one side of the case, and a conductor (printed circuit) of the ECU and the insulating plate 3. When connecting the electric wires 4 which are wired in parallel with each other, an ECU connector 8 connected to a conductor is arranged on a substrate 7a of the electric wire ECU 7 in a direction orthogonal to the wiring direction X of the electric wires 4, and the electric wires 4 are connected to the ECU. The connector 8 is connected via a press contact terminal 9.

[0003]

The ECU connector 8 is connected to the electric wire 4 as shown by a dashed line in FIG.
May be required to be arranged in parallel with the wiring direction X.

In this case, in order to connect the ECU 8 and the electric wire 4 in the X direction, it is necessary to provide an L-shaped electric wire 4 'as shown in FIG. However, when wiring an L-shaped wire, an automatic wiring machine can easily perform a straight parallel wiring, but an L-shaped wiring requires re-setting of the automatic wiring machine, and is very difficult. It gets complicated. As a result, there is a problem that the cost is increased even if the wiring is performed in the L shape.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and does not provide an L-shaped electric wire, but uses an electric wire laid in the X direction by arranging a linear electric wire, and a wire parallel to the electric wire. It is an object of the present invention to enable connection with an arranged ECU connector.

[0006]

In order to solve the above-mentioned problems, according to the present invention, there is provided a box including an upper case and a lower case, in which an internal circuit including an electric wire and a press contact terminal pressed against the electric wire is housed. A junction box in which an electronic control unit (ECU) is housed, an ECU connector connected to a conductor of the ECU is mounted on a board, and the internal circuit and the conductor of the ECU are connected via the ECU connector. A large number of wires are wired in parallel in the X direction on an insulating plate disposed above or below the ECU, and the ECU connectors are disposed in parallel in the X direction. The wiring in the Y direction is welded or caulked at the intersection with the electric wire in the X direction, and the electric wire in the Y direction is connected to the ECU core. A junction box is provided in which the ECU connector is connected to an electric wire in the X direction by connecting the ECU connector to a connector via an insulation displacement terminal.

[0007] As described above, the wires in the Y direction orthogonal to the wires laid in the X direction are cross-wired and connected at the crossing positions, and the wires in the Y direction are connected to the ECU connector via the press contact terminals. Thereby, the electric wire in the X direction and the ECU connector arranged in parallel with the electric wire can be connected without wiring the electric wire bent in the L direction.

[0008] While the X-direction electric wire extends over the entire length of the insulating plate, the Y-direction electric wire extends from one edge of the insulating plate to an intersection with the X-direction electric wire.
One end of the insulating plate is connected to the ECU connector via the press contact terminal.

The connection at the intersections of the wires in the X and Y directions is performed by stripping the insulation coating of these wires, superposing the exposed core wires, and performing resistance welding, ultrasonic welding, soldering welding or caulking connection. ing. When the electric wires are connected to each other in this way, no connecting parts are required, the number of parts can be reduced, the space required for the connecting parts can be eliminated, and the junction box can be reduced in size and weight.
Needless to say, the connection may be made by a press contact terminal having a press contact blade in the orthogonal direction.

[0010]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a junction box 10 connected to a wire harness for an automobile. Inside a case composed of an upper case 11 and a lower case 12, an ECU 13 is housed in a recess provided in the lower case 12, , An insulating plate 16 for a single core wire is arranged,
The single core wire 18 is wired in parallel in the X direction over the entire length of the upper surface of the insulating plate 16. The single core wire 18 is made of an electric wire in which a single core wire is insulated and coated.

An ECU connector 19 for connecting an external electric wire to be connected to a terminal connector of the wire harness W / H is mounted at one end in the X direction on the board 15 of the ECU 13. The single core wire 18 to be wired to the insulating plate 16 and the ECU 13
The ECU connector 20 for connecting to the conductor 14 is mounted on the edge of the substrate 15 of the ECU 13 parallel to the wiring direction X, and accommodates the female terminal 17 connected to the conductor 14.

To connect the ECU connector 20 and the upper single-core wire 18 in the X direction, as shown in FIGS. 2 and 3, on the insulating plate 16 disposed above the upper single core wire 18 in the X direction. The single core wire 21 in the Y direction is wired in parallel,
The core wire 21a exposed to the terminal in the direction is resistance welded to the core wire 18a exposed by peeling the single core wire 18 in the X direction in the middle.

The other end of the single core wire 21 in the Y direction is shown in FIG.
As shown in FIG. 2, the press contact blade 22a at the upper end of the press contact terminal 22 arranged in the vertical direction is connected by press contact, and the press contact terminal 22 protrudes downward through the insertion hole 16a provided in the insulating plate 16, and is inserted into the ECU connector 20. To fit and connect to the female terminal 17.

With the above configuration, the ECU connector 20 arranged in parallel with the single core wire 18 can be connected via the single core wire 21 which is orthogonally wired to the single core wire 18, and the conventional L-shaped single core wire can be connected. There is no need to wire. Therefore,
There is no need to redo the settings of the automatic wiring machine, and wiring can be performed easily.

[0015]

As is apparent from the above description, according to the present invention, in the case of a different direction arrangement in which the direction of the ECU connector is arranged in parallel with the single core wire to be connected, the parallel wiring is performed without bending the single core wire. Can be easily connected to a single core wire. Therefore, wiring becomes easy and workability can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a junction box according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of an ECU connector, an insulating plate, and a single core wire.

FIG. 3 is a schematic diagram showing a welding state of a single core wire in the XY directions.

FIG. 4 is a drawing showing a connection state between an ECU connector and a single core wire.

FIG. 5 is an exploded perspective view of a conventional junction box.

FIG. 6 is a schematic diagram when the ECU connectors are arranged in different directions.

FIG. 7 is a schematic diagram showing a problem when the ECU connectors are arranged in different directions.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Junction box 11 Upper case 12 Lower case 13 ECU 14 Conductor 15 Substrate part 16 Insulating plate 17 Female terminal 18 Single core wire in X direction 20 ECU connector 21 Single core wire in Y direction 22 Pressure contact terminal

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor: Yuki Saito, 1-114, Nishisuehirocho, Yokkaichi, Mie Prefecture Inside Sumitomo Wiring Systems, Ltd. (72) Inventor: Nobushi Kobayashi, 1-14, Nishisuehirocho, Yokkaichi, Mie Prefecture No. Sumitomo Wiring Systems, Inc. F-term (reference) 4E352 AA02 AA03 AA09 AA16 BB02 BB15 CC02 DD02 DD05 GG12 5G361 BA04 BB01 BC03

Claims (2)

[Claims] 1. A box comprising an upper case and a lower case accommodates an internal circuit composed of an electric wire and a press contact terminal pressed against the electric wire, and an electronic control unit (ECU). A junction box in which an ECU connector connected to the conductor is mounted on a substrate, and the internal circuit and the conductor of the ECU are connected via the ECU connector, wherein an electric wire is provided on an insulating plate disposed above or below the ECU. Are wired in parallel in the X direction, and the EC
A U connector is arranged in parallel with the X direction, a Y direction wire is cross-wired to the insulating plate, and the Y direction wire is welded or swaged at the intersection with the X direction wire, and the Y direction wire is connected. A junction box in which the above-mentioned electric wire and the above-mentioned ECU connector are connected via an insulation displacement terminal and the above-mentioned ECU connector is connected to the electric wire in the X direction. 2. The electric wire in the X direction extends over the entire length of the insulating plate, while the electric wire in the Y direction extends from one edge of the insulating plate to a crossing point with the electric wire in the X direction. 3. The junction box according to claim 1, wherein one end of the junction box is connected to an ECU connector via the press contact terminal.