JPH0143825Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a device for interconnecting printed circuit boards in an electronic unit housing a plurality of printed circuit boards mounted with desired electronic components in a unit case. .

[Conventional technology]

An electronic unit is generally removably attached to a junction block (hereinafter referred to as "JB") used for electrical wiring in an automobile.

To explain this with the help of drawings, in FIGS. 3 and 4, 1 is a JB, and an electronic unit 3 is inserted and locked into a receiving box 2 provided on one side of the JB. 4 is a locking arm thereof, and 5 is a locking hole. Electronic unit 3
The unit case 6 has a guide groove (not shown) on the inner surface of its side wall, and has a structure in which a plurality of (two in the figure) printed circuit boards 7, 7' can be freely inserted and removed. Each board is equipped with resistors, capacitors, transistors, ICs, and other desired electronic components 8, but electrical connections between the boards 7 and 7' are made by running jumper wires 9 between the mutual circuits. I am passing it on. The electronic unit 3 is connected to the outside by protruding a female connector 10 fixed to a printed circuit board from an opening 12 of a case cover 11, and fitting a male connector 13 provided on a wire harness W into the female connector 10.

[Problem that the invention attempts to solve]

In the prior art, jumper wires are used to connect printed circuit boards within an electronic unit. Therefore, even if only a part of the printed circuit board breaks down, the entire printed circuit board must be removed and replaced, resulting in a problem of time consuming and high maintenance costs.

[Means for solving problems]

The purpose of the present invention is to solve the above-mentioned problems and provide an interconnection device in which the built-in printed circuit boards can be taken out individually, making it easy to replace them and reduce maintenance costs. ,
The solution consists of an electronic unit in which a plurality of printed circuit boards loaded with desired electronic components can be inserted and removed freely in a unit case, and a receiver box for the electronic unit. A conductive member having a pair of male or female terminals is fixed, and a coupling coupler is provided at the bottom of the unit case that is electrically connected to the desired circuit of the printed circuit board and has female or male terminals for the conductive member, and the receiver of the electronic unit is connected to the conductive member. The present invention is characterized in that the printed circuit boards are connected to each other via a conductive member when inserted into the box.

Hereinafter, the above means will be specifically explained with reference to the drawings. Note that the same parts as in the conventional example will be described using the same reference numerals.

In FIGS. 1 and 2, reference numeral 20 denotes a conductive member for connecting printed circuit boards, and a pair of male terminals 22 facing each other at both ends of a board portion 21 are connected in an upright U-shape. Reference numeral 23 is a holding plate made of a synthetic resin insulator, and has a plurality of through holes 24 for the male terminals 22 arranged in parallel, and pin holes 25 on both side edges. The male terminal 22 is inserted into the through hole 24 of the holding plate 23 and positioned, and is fixed to the bottom 27 of the J.B1 with a pin 26 with the male terminal 22 facing the insertion side of the electronic unit.

On the other hand, in the electronic unit 3, an internal circuit (not shown) is provided on the insertion end side of the printed circuit boards 7, 7'.
A female terminal 28 is provided which is electrically conductive with the female terminal 28 and which receives the male terminal 22. A housing 29 is fixed to the bottom wall of the unit case 6 to accommodate and partition the female terminal 28. forms a coupling coupler 30 to the conductive member 20.

[Effect]

According to the present invention, when the electronic unit 3 is inserted into the receiving box 2 of the J.B. 1, the female terminal 28 inside the coupling coupler 30
receives the male terminal 22 of the conductive member 20, and the printed circuit boards 7 and 7' are interconnected.

The printed circuit boards 7 and 7' are electrically connected only after the coupling coupler 30 and the conductive member 20 are coupled together when the printed circuit boards 7 and 7' are inserted into the receiving box 2. Since it can be inserted and removed, replacement is easy and maintenance costs are low.

[Embodiment]

1 and 2 show representative examples of the device of the present invention, in which the male terminal 22 of the conductive member 20 may be replaced with a female terminal, and the female terminal 28 of the coupling coupler 30 may be replaced with a male terminal. In addition, the receiver box 2 into which the electronic unit 3 is inserted and locked is
It can be provided not only in J.B1 but also in any desired location such as inside the car body or on the back side of the dash board. Furthermore, it is also possible to freely connect the conductive member 20 to the circuit or connection terminal in J.B1.

Furthermore, the printed circuit boards 7 and 7' have functional circuits common to all automobiles on one side, such as a key illumination timer function, a seatbelt fastening alarm function, and a door ajar alarm function, and on the other side, circuits such as the car model, grade, etc. By forming circuits for different functions, such as a wiper control unit, a room lamp control unit, and a defogger control unit, the applications can be expanded.

[Effect of idea]

As explained above, according to the device of the present invention, the printed circuit board housed in the unit case can be easily replaced and maintenance costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an example of the device of the present invention;
This figure is an exploded perspective view of the main parts of the same as above, FIG. 3 is a general perspective view of a junction block and electronic unit showing a conventional example, and FIG. 4 is a sectional view showing an assembled state of the same. 2... Receiving box, 3... Electronic unit, 4... Unit case, 7, 7'... Printed circuit board, 20...
... Conductive member, 22 ... Male terminal, 23 ... Holding plate,
28...Female terminal, 29...Housing, 30...
Coupling coupler.

Claims (1)

[Scope of utility model registration request] It consists of an electronic unit in which a plurality of printed circuit boards with desired electronic components are housed in a unit case so that they can be inserted and removed freely, and a receiver box for the electronic unit, and a pair of male or A conductive member having a female terminal is fixed, and a coupling coupler is provided at the bottom of the unit case that is electrically connected to the desired circuit of the printed circuit board and has a female or male terminal for the conductive member, and the electronic unit is inserted into the receiving box. 1. An interconnection device for printed circuit boards in an electronic unit, characterized in that the printed circuit boards are sometimes connected to each other via a conductive member.