JPH0621179U - Connection parts for wire harness - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a connection part for a wire harness, which has a good connection workability and a compact connection part. A printed circuit board 22 is formed on an inner surface of a protector 21 that accommodates a required portion of the wire harness, and a connection end portion of the printed circuit board 22 is taken out of the protector 21 to form the wire harness. The desired electric wire is connected to the printed circuit board 22 from the outside of the protector 21 and electrically connected.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connecting part for branching and connecting electric wires constituting an automobile wire harness.

[0002]

[Prior art]

 Conventionally, the mutual branch connection of the electric wires constituting the automobile wire harness has been performed by the following means, for example. 1) As shown in FIG. 6, the core of the electric wire 1a is peeled off to expose the core wire, the branch wire 1b is connected thereto by the connecting terminal 2, and then the insulating tape 3 is wound to protect the insulation ( Splice connection method). 2) When the twisted wires are interconnected in the middle, the above splice connection method cannot be used. Therefore, for example, when connecting four units 4 as shown in FIG. 7 with a twist wire 5, as shown in FIG. 8, a bus bar 6 having four connection ends and a twist wire 5 are provided. A joint connector in which the four terminals 7 crimped and connected by the connector 8 are connected is used. As shown in FIG. 9, such a pair of connectors 8 is fixed to the wire harness 10 with the tape 9 and is housed inside the protector 11 made of synthetic resin.

[0003]

[Problems to be solved by the device]

 However, there are the following problems in the conventional method for connecting the wires that make up the wire harness to each other. That is, 1) In the splice connection method shown in FIG. 6, the work of stripping the middle part of the wire, crimping the connection terminal, and winding the insulating tape is performed, and the workability is poor. 2) In the twisted wire connecting means shown in FIGS. 8 and 9, since the protector is used, the connecting portion is enlarged, and the cost and weight are increased.

[0004]

The present invention provides a connection part for a wire harness that solves the above-mentioned problems, and a printed circuit board is formed on the inner surface of a protector that houses a required part of the wire harness. The connection end of the printed circuit board is taken out to the outside of the protector, and a desired electric wire forming the wire harness is connected to the printed circuit board from the outside of the protector and electrically connected. It is characterized by that. In this way, when the printed circuit board having the desired circuit is formed on the inner surface of the protector and the connecting end of the printed circuit board is taken out to the outside of the protector, the desired electric wire can be fed from the outside of the protector to the printed circuit board. And can be electrically connected to each other, and the connection part can be made compact.

[0005]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. Example 1. 1 (a) and 1 (b) are a perspective view and an AA cross-sectional view of an embodiment of a connection component for a wire harness according to the present invention. In the figure, 21 is a protector for accommodating a required part of the wire harness, and 22 is a molded printed circuit circuit board integrally formed on the inner surface of the protector when the protector 21 is molded. A desired connection circuit is formed on the molded printed circuit board 22. A wire harness connecting portion 23 is provided outside the protector 21, and the wire harness connecting portion 23 and the molded printed circuit circuit board 22 are connected via a connecting pin 24 penetrating the protector 21. There is. FIG. 2 is a perspective view showing a state in which the wire harness 26 is mounted on the wire harness connection component 25. The wire harness 26 is fixed to the protector 21 by winding a tape 27 around the protruding end 31 of the protector 21. The electric wire 28 of the wire harness 26 to be connected is drawn out and connected to the wire harness connecting end 29, and the wire harness connecting end 29 is connected to the wire harness connecting part 23. In such a wire harness connecting part 25, since only the wire harness 26 is housed in the protector 21 and the wire harness connecting part 23 is outside the protector 21, the wire harness connecting part 25 becomes smaller. . In the present embodiment, as shown in FIG. 3, the electronic component 30 may be incorporated on the circuit of the molded printed circuit board 22 so that the protector 21 has an electronic unit function. Example 2. 4 and 5 are a perspective view and a BB sectional view of another embodiment of the present invention, respectively. In this embodiment, the flexible printed circuit board 32 is attached to the inner surface of the protector 21, and both ends of the flexible printed circuit board 32 are bent to the outside of the protector 21 to form the wire harness connection portion 33. Reference numeral 34 is a wire harness connecting end fixing portion for fixing the wire harness connecting end portion 29. The circuit pattern of the printed circuit board is not limited to the above embodiment.

[0006]

[Effect of device]

 As described above, according to the present invention, the printed circuit board is formed on the inner surface of the protector that houses the required portion of the wire harness, and the connection end of the printed circuit board is taken out to the outside of the protector. Since a desired electric wire forming a wire harness is electrically connected to the printed circuit board from the outside of the protector, there is an excellent effect that the connecting portion can be made compact.

[Brief description of drawings]

1A and 1B are a perspective view and an AA cross-sectional view of an embodiment of a connection component for a wire harness according to the present invention.

FIG. 2 is a perspective view showing a state in which the wire harness is mounted on the above-described embodiment.

FIG. 3 is a perspective view showing a state in which an electronic component is incorporated in the above embodiment.

FIG. 4 is a perspective view of another embodiment of the present invention.

FIG. 5 is a sectional view taken along line BB of the above embodiment.

FIG. 6 is an explanatory diagram of a method for branching and connecting electric wires forming a conventional wire harness.

FIG. 7 is a connection system diagram using a twisted wire.

FIG. 8 is an exploded explanatory view of a twisted wire connection portion of the connection system.

FIG. 9 is an explanatory diagram of a connection part of the connection system.

[Explanation of symbols]

1a, 1b, 28 Electric wire 2 Connection terminal 3, 9, 27 Tape 4 Unit 5 Twist wire 6 Busbar 7 Terminal 8 Connector 10, 26 Wire harness 11, 21 Protector 22 Molded printed circuit board 23, 33 Wire harness connection part 24 Connection Pin 25 Connection part for wire harness 29 Wire harness connection end 30 Electronic component 31 Projection end 32 Flexible printed circuit circuit board 34 Wire harness connection end fixed part

Claims (1)

[Scope of utility model registration request] 1. A printed circuit board is formed on an inner surface of a protector for accommodating a required portion of a wire harness, and a connection end portion of the printed circuit board is taken out to the outside of the protector to form a desired wire harness. The electric wire is connected to the printed circuit board from the outside of the protector, and is electrically connected.