JPH0141184Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to a bulb socket circuit in an automobile lamp.

<Prior Art> Many conventional valve socket circuits of this type have been proposed using flexible printed circuit boards. However, flexible printed circuit boards are relatively expensive, resulting in high costs, and the printed circuit's current capacity is small, making it impossible to use valves with large wattage, and the problem is that it is difficult to use valve sockets or electrical connections with valves. There was a problem with poor reliability, and attempts to improve the reliability resulted in a complicated structure, poor assembly workability, and at the same time, increased costs.

<Divisions that the invention aims to solve> This invention was made in view of these conventional problems, and aims to reduce costs without using flexible printed circuit boards and with good assembly workability. It is an object of the present invention to provide a bulb socket circuit for an automobile lamp, which can improve the reliability of electrical connection with the bulb socket.

<Means for Solving the Problems> The bulb socket device of the present invention which achieves the above object has a plurality of conductors placed on a resin film in parallel at appropriate intervals on the inner surface of the lamp body to which the bulb socket is attached. A conductive plate is installed in which the conductive plates are arranged in parallel, and of the plurality of conductive bodies, the positive conductor contacts the positive contact of the valve socket, and the ground conductor contacts the ground contact of the socket. A plurality of socket insertion holes are formed in between, and a plurality of cuts are formed to connect and cut the positive conductor that contacts the positive contact of the valve socket and the selected other positive conductor. to form a connection part on each positive conductor, and also form a conductive piece insertion hole in the lamp body at a position corresponding to the above cut, and select the conductive piece insertion hole as the connection part of the positive conductor. This feature is characterized in that a conductive piece is inserted and installed to electrically connect the connecting portion of the other positive conductor to each other.

<Example> Hereinafter, an example of implementing the present invention will be described based on the drawings.

In the figure, A is a conductive plate, which is installed in an overlapping manner on the inner surface of the lamp body B for mounting and supporting the bulb socket 4.

The conductive plate A includes a plurality of conductors 2 and 3 formed in a thin strip shape using a conductive material such as a copper plate on the upper surface of a long strip-shaped flexible elastic resin film 1.
a, 3b, 3c, . . . are arranged parallel to each other along the longitudinal direction of the resin film 1 at appropriate intervals. That is, a grounding conductor 2 that is in electrical contact with the grounding contact 4a of the valve socket 4 is installed, for example, along the edge of the resin film 1, and the grounding conductor 2 is placed parallel to the grounding conductor 2 at appropriate intervals.
A first positive conductor 3a is placed in electrical contact with the positive contact (not shown) of the valve socket 4 at _L1 , and is further parallel to the first positive conductor 3a at an appropriate interval. 2nd, 3rd, 4th... positive conductors 3b, 3c after L ₂ ,
... are sequentially arranged in parallel on a resin film 1, and when used, they are cut to a required length as shown in FIG. In addition, the distance L ₁ between the grounding conductor 2 and the first positive conductor 3a is:
The width is set so that the positive contact (not shown) of the valve socket 4 can simultaneously contact the first positive conductor 3a while the ground contact 4a of the valve socket 4 is in contact with the earth conductor 2, and each positive The spacing _L2 between the conductors 3a, 3b, 3c, . . . is set as narrow as possible.

This conductive plate A has a plurality of socket insertion holes 5a, 5 for inserting the valve socket 4.
b, 5c, ... and each positive conductor 3a, 3b,
3c, . . . are cut at the required locations, and the connection portions 3'a, 3'a, 3c, .
A plurality of cuts 6a, for forming 3'b,...
Openings 6b, 6c, . . . are formed.

The socket insertion holes 5a, 5b, . A plurality of openings are formed at appropriate intervals along the longitudinal direction of the conductive plate A.

In addition, the cuts 6a, 6b, 6c, ... are the first cuts described above.
The positive conductor 3a and the other selected second, third, ... positive conductors 3b, 3c, ... are formed in a continuous manner to form each positive conductor 3a, 3.
Connecting portions 3'a, 3'b, . . b, 3c, . . . are formed. That is, the first positive conductor 3a and the second positive conductor 3b adjacent thereto are cut together to form a first notch 6a, and the first positive conductor 3a is cut. and the third positive conductor 3c are cut together to form a second notch 6b, and further connected to the first positive conductor 3a and the fourth positive conductor 3c. cutting both together to form a third notch 6c;
Each positive conductor 3a, 3b, cut together
3c, . . . connecting portions 3'a, 3'b, . . . are formed. At this time, each cut 6a, 6b, 6c,
... are each positive conductor 3a cut together,
3b, 3c, . . . Connecting portions 3'a, 3'b, .
The connecting portions 3'a, 3'b, . . . of 3c, . . . are brought into electrical contact with conductive pieces 7a, 7b, 7c, .

Then, the conductive plate A is placed on the inner surface of the lamp body B, and the bulb socket 4 is inserted from the socket insertion holes 5a, 5b, 5c, . . . of the conductive plate A to the socket support holes 8a, 8b, . At the same time, insert the conductive pieces 7a, 7b, 7c, ... into the conductive piece insertion holes 9a, 9b, 9c, ... of the lamp body B from the notches 6a, 6b, 6c, ... of the conductive plate A. An electric circuit for each valve socket 4 is configured. That is, the socket insertion holes 5a, 5b, 5c, formed in the conductive plate A
...and the socket support holes 8a, 8b, 8c, ... in the lamp body B in correspondence with the notches 6a, 6b, 6c, ...
... and conductive piece insertion holes 9a, 9b, 9c, ... are formed as openings, and the conductive plate A is placed overlappingly on the inner surface of the lamp body B, and each bulb socket 4 is inserted into the socket insertion hole 5a of the conductive plate A. , 5b, 5c, . . . into the socket support holes 8a, 8b, 8c, . and the positive contact of the valve socket 4 (not shown).
electrically contact the first positive conductor 3a, and insert the conductive pieces 7a, 7b into the conductive piece insertion holes 9a, 9b, 9c,... of the lamp body B from the respective notches 6a, 6b, 6c, . , 7c, . . . and the conductive pieces 7a, 7b, 7c, . 3'c (for example,
The connecting portion 3'a of the first positive conductor 3a and the connecting portion 3'b of the second positive conductor 3b are connected to each other via the conductive piece 7a, and the first positive conductor 3'a is connected to the connecting portion 3'b of the second positive conductor 3b via the conductive piece 7b. The electrical circuit of each valve socket 4 is constructed by electrically connecting the connecting portion 3'a of the conductor 3a and the connecting portion 3'c of the third positive conductor 3c. Therefore, all the ground sides of each valve socket 4 are electrically connected to the ground conductor 2 through the ground contacts 4a, and all the positive sides are electrically connected to the first positive conductor 3a through the positive contacts (not shown). However, in the case of the valve socket 4 installed in the second socket insertion hole 5b, the first positive conductor 3a is electrically connected to the second positive conductor 3b via the conductive piece 7a, and the third socket is electrically connected to the second positive conductor 3b. In the case of the valve socket 4 installed in the insertion hole 5c, the first positive conductor 3a
from the third positive conductor 3 via the conductive piece 7b.
It becomes conductive to c. In addition, the connection parts 3'a, 3'b,... of each positive conductor 3b, 3b,... are as follows:
Conductive pieces 7a, 7b,... are placed inside the cuts 6a, 6b,...
When inserting the conductive pieces, they are folded into the conductive piece insertion holes 9a, 9b, 9c, . . . (with your finger or the conductive pieces 7a, 7b, 7c, .

The grounding conductor 2 and positive conductors 3a, 3b, . . . of the conductive plate A are electrically connected to the connector D via the printed circuit 9 of the flexible printed circuit board C. That is, the tip A' of the conductive plate A and the tip C' of the flexible printed circuit board C are installed so as to face into the groove 10 of the lamp body B, and the ground conductor of the conductive plate A is placed in the groove 10. 2 and each positive conductor 3a, 3b, . The part C'' is inserted into the connector connection part 13 of the lamp body B, and the connector D is attached to the connector connection part 13 (see FIG. 4).

Moreover, FIG. 5 shows another embodiment of the present invention, and the first
The same reference numerals as in the embodiment described in FIGS. 4 to 4 indicate the same constituent members. In this embodiment, a grounding conductor 2 and a plurality of positive conductors 3a, 3
b, .
b, . …
This embodiment differs from the previous embodiment in that it is composed of a core wire with a round cross section, and the grounding conductor 2 and each positive conductor 3a, 3b, ... are electrically connected to the connector connection part 13 with a lead wire 14. . In the figure, reference numeral 15 denotes a pad for ensuring electrical contact between the positive and ground contacts 4a of the valve socket 4 and the ground conductor 2 and the first positive conductor 3a of the conductive plate A, respectively.

In addition, the embodiment shown in FIGS. 6 and 7 has a flexible printed circuit board C on the outside of the lamp body B.
is arranged and electrically connected to the bulb socket 4, and a box-shaped connector connection part 13 is formed on the lamp body B in the mold removal direction in the same body,
The connecting tongue portion _C1 of the flexible printed circuit board C is inserted into the connector connecting portion 13 and electrically connected to the connector D. The connector D and the connector connecting portion 13 are formed with an engaging protrusion 15a and an engaging recess 15b that engage with each other. According to this embodiment, the connector will not accidentally fall off from the connector connection part, and since the connector connection part is molded in the same body as the light body wall in the direction of mold removal, manufacturing is easy and the shape is easy. It will be possible to simplify the process and reduce costs.

<Effects of the invention> Since the valve socket device of the present invention is constructed in this way, it can be assembled with almost the same specifications as a flexible printed circuit board without using an expensive flexible printed circuit board, and has good assembly workability. Cost reduction can be achieved. That is, since the conductive plate according to the present invention can be used by cutting a continuous plate to a required length, the cost can be reduced due to the mass production effect.

Moreover, since the electrical circuit of the valve socket can be constructed by simply inserting a conductive piece into the socket, assembly work efficiency is improved.

In addition, since the electrical circuit uses a conductor made of a thin copper plate, etc., the electrical connection with the contacts of the valve socket is ensured, improving reliability, and the current capacity is lower than that of the printed circuit of the flexible printed circuit board. Since it is possible to increase the number of watts, it is also possible to use valves with a large wattage.

Therefore, the intended purpose can be achieved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the conductive plate according to the present invention, Fig. 2 is an exploded perspective view showing an example of the implementation of the invention, Fig. 3 is an enlarged perspective view of the cut portion, and Fig. 4 is a conductive plate. 5 is an exploded perspective view showing another embodiment of the invention; FIG. 6 is a perspective view showing still another embodiment of the invention; FIG. is a view taken along the X arrow in FIG. In the figure, A is a conductive plate, B is a lamp body, 1 is a resin film, 2 is a ground conductor, 3a, 3b, 3c are positive conductors, 4 is a bulb socket, 4a is a ground contact, 5a, 5b , 5c, are socket insertion holes, 6a, 6b, 6c are notches, 7a, 7
b and 7c are conductive pieces.

Claims (1)

[Scope of utility model registration request] On the inner surface of the lamp body where the bulb socket is installed,
A conductive plate is installed in which a plurality of conductors are arranged parallel to each other at appropriate intervals on a resin film, and a positive conductor of the plurality of conductors contacts the positive contact of the valve socket on the conductive plate. A plurality of socket insertion holes are formed between the conductor and the ground conductor that comes into contact with the ground contact of the socket, and a plurality of socket insertion holes are formed between the conductor and the ground conductor that is selected as the positive conductor that comes into contact with the positive contact of the valve socket. Forming a plurality of notches that connect and disconnect other positive conductors to form a connection part in each positive conductor, and forming a conductive piece insertion hole in the lamp body at a position corresponding to the notch, A conductive piece is inserted into the conductive piece insertion hole to electrically connect the connecting part of the positive conductor and the selected other positive conductor to each other. Bulb socket circuit for automotive lighting equipment.