JPH0521218Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a switch circuit device, and more specifically, a switch circuit device using bus bar terminals used in circuits with large currents such as automobile power window switches. Regarding.

(Prior Art) An example of a switch circuit device using conventional bus bar terminals is shown in FIG.

Reference numeral 11 denotes a bus bar terminal formed by punching out a plate of conductive material that has been treated with silver plating, etc. The shape is processed into a roughly L-shape, Z-shape, etc. according to a predetermined circuit, and the head part has a terminal as described below. A round hole 11a into which a seesaw switch terminal is inserted is provided.

3 is a seesaw switch which has a seesaw knob 3a on its upper surface and six terminals 3b on its lower surface, which are inserted into the round holes 11a of the bus bar 11 and soldered.

Reference numeral 4 is a case made of synthetic resin, and the upper surface thereof is provided with a movable knob portion 4a that engages with the seesaw knob 3a of the seesaw switch 3.
A square hole 4b for engaging a case B, which will be described later, is provided at that location.

15 is a box-shaped case B made of synthetic resin.
A boss 15a for positioning the bus bar terminal 11 is provided on the inner bottom surface, and a projection 15b for engaging with the square hole 4b of the case A4 is provided on the upper outer side surface.

Next, a method of assembling the switch circuit device having the above configuration will be explained.

First, the seesaw switch 3 is inserted into the case A4, and the seesaw switch 3 is fixed with screws or the like (not shown) at a position where the seesaw knob 3a and the knob operating portion 4a of the case A4 are aligned.

Next, the fixed seesaw switch 3 terminal 3b
The round holes 11a of the bus bar terminals 11 are aligned and inserted one by one and fixed by soldering.
Similarly, the above operation is repeated for the number of bus bar terminals.

Further, the soldered bus bar terminals 11 have a structure in which a portion thereof intersects three-dimensionally.

Next, the case B15 is combined with the case A4, and the engagement protrusion 15b of the case B15 is attached to the case A4.
is engaged with the square hole 4b. Therefore, when the assembly is completed, the three-dimensionally intersecting bus bars 11 are positioned by the bosses 15a of the case B15 so as not to shoot each other.
If deformation or the like occurs due to some influence on the busbars 11, there is a risk that the busbars 11 will shoot each other.

In other conventional examples, a method (not shown) has been used in which bus bar terminals are integrally molded by insert molding or the like and then incorporated.

(Problem to be solved by the invention) However, in the conventional example described above, the busbar terminals must be soldered to the terminals of the seesaw switch one by one, which takes time and effort and does not allow the busbar terminals to be assembled into the case. However, there was a drawback that it would shoot out if the busbar terminals were deformed.

Although other integrally molded busbar terminals solve the above-mentioned drawbacks, they require a mold for integral molding, which increases the price.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to eliminate the above-mentioned drawbacks and provide an inexpensive switch circuit device.

(Means for Solving the Problem) Therefore, the switch circuit device according to the present invention includes a plurality of bus bar terminals processed into a predetermined circuit pattern shape, a switch to which the bus bar terminals are fixed, and a switch circuit device on the top of the switch. A case A that is provided with an operating knob and has a freely movable knob operating portion that engages with the operating knob of the switch, and the case A.
A switch circuit device comprising a case B that is engaged with a case B and houses the busbar terminal therein, wherein the busbar terminal is provided with attachment means to an insulating plate, and the attachment means allows the busbar terminal to be attached to the insulating plate. The switch is fixed to an appropriate position on the board, and the switch is arranged on one side of the insulating plate to which the bus bar terminal is fixed to form a predetermined circuit, and the case B is attached to the other side of the insulating plate. It is something that

(Function) Therefore, according to the present invention, by fixing the bus bar terminals to the insulating plate in advance by the above-mentioned means, the bus bar terminals can be integrated into the switch and can be soldered at the same time.

Furthermore, by arranging the busbar terminals on both sides of the insulating plate, there is no possibility that the busbars cross each other, and therefore there is no fear of the busbars being shot.

(Example) The details of an example of the present invention are shown in Figures 1 to 4 below.
This will be explained based on the diagram.

1 is a bus bar terminal punched out of a plate of conductive material that has been treated with silver plating, etc. The shape is processed into a roughly L-shape, Z-shape, etc. according to a predetermined circuit, and the head has a seesaw, which will be described later. A round hole 1a is provided into which a terminal 3b of the switch 3 is inserted, and a V-shaped protrusion 1b is provided in a part thereof for fixing to an insulating plate 2, which will be described later.

Reference numeral 2 denotes an insulating plate made of a phenol laminate or the like, and inside thereof, a square hole 2b for inserting the V-shaped protrusion 1b of the bus bar 1 is provided at a predetermined position, and a round hole for inserting the terminal 3b of the seesaw switch 3, which will be described later. 2a
is provided at a predetermined position.

3 is a seesaw switch which has a seesaw knob 3a on its upper surface and six terminals 3b on its lower surface. Reference numeral 4 denotes a case A made of synthetic resin or the like, which has dimensions such that the insulating plate 2 can be housed therein, and a freely movable knob operating portion 4a that engages with the seesaw knob 3a is formed on the top surface. .

Further, four square holes 4b are provided in the lower side of the case A4 to engage a case B5, which will be described later.

5 is a box case B made of synthetic resin, etc.
The structure is such that the case A4 is engaged with the case A4 to cover the lower side of the insulating plate, and the square hole 4 of the case A4 is engaged with the case A4.
4 on the upper side of case B5 to be engaged with case B5.
Engaging protrusions 5b are provided at several locations.

Next, a method of assembling the switch circuit device having the above configuration will be explained.

First, the V-shaped protrusion 1b of the bus bar terminal 1 is inserted into the square hole 4b of the insulating plate 2, and the tip of the V-shaped protrusion 1b is spread and fixed from the opposite side of the insulating plate 2 (not shown). Next, the same operation is performed for other bus bar terminals 1 inserted from the opposite side of the insulating plate 2.

In this embodiment, the above work is performed simultaneously on both sides using a simple jig.

In addition, when the bus bar terminal 1 and the insulating board 2 are fixed (hereinafter referred to as a circuit board), the bus bar terminal 1
The positions of the round hole 1a and the round hole 2a of the insulating plate 2 have the same dimensions.

Next, the seesaw switch 3 is inserted into the circuit board, and the terminals 3b are simultaneously soldered to the circuit board.
Next, put the circuit board on which the seesaw switch is attached into the case A4 and insert the operation part 4a and the seesaw knob 3a.
The engaging protrusions 5b of the case B5 are aligned with the square holes 4b of the case A4 from the bottom surface, and the assembly is completed.

Therefore, according to the embodiment described above, the work of assembling the bus bar terminals 1 can be carried out at one time, and there is no need to cross over the bus bar terminals.

(Effects of the invention) As described above, the present invention includes a plurality of busbar terminals processed into a predetermined circuit pattern shape, a switch to which the busbar terminals are fixed, and an operation knob provided on the top of the switch. In a switch circuit device comprising a case A having a freely movable knob operating portion that engages with an operation knob of a switch, and a case B that is engaged with the case A and stores the busbar terminal therein, the busbar terminal is A means for attaching to the insulating plate is provided, and the attaching means fixes the busbar terminal at an appropriate position on both sides of the insulating plate, and the switch is disposed on one side of the insulating plate to which the busbar terminal is fixed. By forming a predetermined circuit and attaching the case B to the other side of the insulating plate, the busbar terminals can be integrated and assembled in advance, making assembly work easier. This interposition has the effect of preventing shorts between the bus bars. On the other hand, since there is no need for molding to integrate the bus bar terminals, no mold is required, and an inexpensive switch circuit device can be provided.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing one embodiment of the present invention, Fig. 2 is an exploded perspective view of the main part of Fig. 1, and Fig. 3 is an exploded perspective view of the main part of Fig. 1.
4 is an assembled plan view, FIG. 4 is a cross-sectional view taken along line AA in FIG. 3, and FIG. 5 is an exploded perspective view of the conventional example. 1...Busbar terminal, 1a...Round hole, 1b...
V-shaped protrusion, 2...Insulating plate, 2a...Round hole, 2b
...Square hole, 3...Seesaw switch, 3a...Seesaw knob, 3b...Terminal, 4...Case A,
4a...knob operation section, 4b...square hole, 5...case B, 5b...engaging protrusion.

Claims (1)

[Claims for Utility Model Registration] A plurality of busbar terminals processed into a predetermined circuit pattern shape, a switch to which the busbar terminals are fixed, an operation knob provided on the top of the switch, and an operation knob of the switch. A switch circuit device comprising a case A having a movable knob operating portion that engages with the case A, and a case B that engages with the case A and stores the busbar terminal therein, wherein the busbar terminal is provided with an insulating plate. mounting means are provided, and the mounting means allows the bus bar terminal to
The switch is fixed to an appropriate position on both sides of the insulating plate, the switch is disposed on one side of the insulating plate to which the bus bar terminal is fixed, and a predetermined circuit is formed, and the case B is attached to the other side of the insulating plate. A switch circuit device characterized in that it is formed so that it can be attached to the switch circuit device.