JPH059830Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention has been improved so that the connection work between an automotive instrument unit installed in the interior of a car and electrical components can be made easier and more reliable. It relates to electrical connection devices.

[Prior Art] Fig. 3 shows a conventional electrical connection device of this type, in which 1 is an on-vehicle meter unit, 2 is an electrical component in which a plurality of fuses 3 are arranged; Electrical connection between the meter unit 1 and the electrical equipment 2 was made using a wire harness 4 and connectors 5 and 6.

[Problem to be solved by the invention] Therefore, in such a conventional electrical connection device, a printed circuit board (not shown) provided inside the meter unit 1 is attached to the back of the meter unit 1. Since a connector 6 is provided to be connected to the connector 6, and a wire harness 4 is connected to the connector 5 and the electrical component 2 that are fitted correspondingly to the connector 6, the connection between the printed circuit board and the connector 6 is Connections, wire harness and connectors 5
A large number of connections, such as connections with bus bars provided in the electrical equipment 2, are generated, and electrical troubles related to these connections are likely to occur. Furthermore,
There is a problem that the reliability of the electrical connection decreases as the number of connection parts increases. Another problem was that the use of connectors, wire harnesses, etc. significantly increased costs.

[Means for Solving the Problems] The present invention was made by focusing on such conventional problems, and it is possible to directly connect the meter unit 1 and the electrical component 2 and to connect the electrical circuits of both of them. An electrical connection device that enables connection through a connector and eliminates the wire harness 4 used in conventional examples, reducing costs, improving connection reliability, and improving assembly workability. Our goal is to provide the following.

[Example] The present invention will be explained in detail below based on the example shown in FIGS. 1 and 2.

Reference numeral 11 denotes a meter unit attached to the vehicle body, and this meter unit 11 has an upper housing 12 and a lower housing 13. Inside these housings, meters and other indicators (not shown) are installed. has been done. Also lower housing 1
A flexible printed wiring board 15 having a circuit pattern 14 connected to the above-mentioned meters and indicators is attached to the back side of 3. Furthermore, this flexible printed wiring board 15 is integrally formed with a tongue piece 15' extending downward from the lower edge thereof and extending from the circuit pattern 14 as well.

16 is an electrical component in which a fuse (not shown) and a bus bar 17 are installed;
has a recess 1 into which an end connector to be described later is fitted.
8 is formed. Also, inside this recess 18,
The terminal piece 19 integrally formed with the bus bar 17 is positioned in an exposed state, and the tongue piece 15' of the flexible printed wiring board 15 is wrapped around. In addition, the above-mentioned meter unit 11,
The electrical components 16 are integrally assembled with screws. 20 is an end connector fitted into the recess 18, and this end connector 20 includes a circuit pattern 14 of a tongue piece 15' and a terminal piece 19.
An end piece 21 for connecting the ends is attached. Note that the electrical equipment 16 is connected to, for example, a connector or a wire harness (not shown),
It goes without saying that it is connected to other electrical circuits (electrical equipment).

As mentioned above, in this embodiment, the flexible printed wiring board attached to the meter unit 11 is provided with the tongue piece 1 having the circuit pattern 14 that is wrapped around the recess 18 formed in the electrical component 16.
5', and in the recess 18, a terminal piece 19 of a bus bar connected to a fuse or the like is exposed. and terminal piece 1
9, it is possible to omit the wire harness and the connectors and other parts connected to this wire harness as described in the conventional example, which not only reduces the cost of the electrical connection device, but also reduces the cost of the electrical connection device. In addition, the reliability of the connection is improved because the number of electrical connection points can be significantly reduced. Furthermore, the circuit pattern on the meter unit 11 side and the connector on the electrical component side can be connected with one touch, improving the ease of connection.

[Effects of the invention] As described above, the present invention adds a printed wiring board 15 that is electrically connected to the meters to the meter unit 11 that houses instruments such as an automobile speedometer and an engine tachometer. , a recess 18 is provided in the printed wiring board 15 into which the tongue piece 15' formed by the circuit pattern 14 formed on the printed wiring board 15 is inserted, and an electrical component 16 incorporating a fuse block bus bar or the like is disposed near the meter unit 11; One end of the bus bar terminal of the electrical component 16 is extended, the extended end 19 is placed in the recess 18, and an end connector is fitted into the recess 18 to connect the extended end 19 of the bus bar terminal to the circuit. Since this is an electrical connection device connected to the pattern 14, it is possible to omit the wire harness and parts such as connectors connected to this wire harness as described in the conventional example, and thereby the electrical connection device is Not only is the cost reduced, but the number of electrical connection points can be significantly reduced, which improves the reliability of the connection. Furthermore, the circuit pattern on the meter unit 11 side and the connector on the electrical component side can be connected with one touch, thereby improving the ease of connection.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the electrical connection device according to the present invention, Fig. 2 is an explanatory cross-sectional view showing a fitted state of a meter unit and electrical components, and Fig. 3 is an explanatory view of a conventional example. It is. 11...Meter unit, 12...Upper housing, 13...Lower housing, 14...Circuit pattern, 15, 15'...Flexible printed wiring board, 16...Electrical equipment, 17...Bus bar, 18... Recessed portion, 19...terminal piece, 20...terminal connector, 21...terminal piece.

Claims (1)

[Scope of utility model registration request] A printed wiring board 15 electrically connected to the meters is attached to a meter unit 11 housing instruments such as an automobile speedometer and an engine tachometer, and a circuit pattern 14 is formed on the printed wiring board 15. A recess 18 is provided for the forming tongue piece 15' to be wrapped around, and an electrical component 16 incorporating a fuse block bus bar or the like is disposed near the meter unit 11, and one end of the bus bar terminal of the electrical component 16 is extended. , an electrical connection characterized in that the extended end 19 of the bus bar terminal is disposed within the recess 18 and an end connector is fitted into the recess 18 to connect the extended end 19 of the bus bar terminal and the circuit pattern 14. Device.