JPH08315677A - Electric switch - Google Patents

Abstract

PURPOSE: To provide an electric switch which has a degree of freedom in design of shape of the equipment itself and is simple of assembly of the case and besides is inexpensive and further operates surely. CONSTITUTION: A push button 22 is made in one body with a case 20, and a base 50 lies under the said case 20, and this case 20 and the base 50 form the case of equipment. A sheet 70 is arranged at the downside of the push button 20 that the case 20 makes, and the sheet 70 is provided with a continuity part 72 and an insulation part 74, and a wiring board 40 is arranged on the downside of this sheet 70, and a spacer 76 to separate the said sheet 70 and the wiring board 40 from each other is provided at one part between both.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch having electric contacts.

[0002]

2. Description of the Related Art An emboss type push button switch uses a membrane switch and a method of arranging a tact switch under an emboss sheet.

FIGS. 4 and 5 show one of the membrane switches.
The remote control device of the electric equipment which mounts an example is shown. FIG. 5 is a side sectional view of FIG. In FIGS. 4 and 5, the lead wires 12 are provided from the respective switch parts 11 on the membrane switch 10.
The membrane switch 10 is attached to the upper surface of the case 20, and the lead wire is attached to the lower surface of the case 20.
There is a wiring board 40 having terminals 42 for connecting 12 and a display section 30 and a display section connector 32 are arranged between the case 20 and the wiring board 40. The wiring board 40, the display section 30, and the display section. The connector 32 is arranged in the space formed by the case 20 and the base 50 arranged below the case 20. In the above, a plurality of switch parts 11 of the membrane switch 10 are provided, and if the electric equipment becomes highly functional, this number is required to be ten to several tens.

FIG. 6 shows a side sectional view of a remote control device having a tact switch under an embossed type. In FIG. 6, the membrane switch of the remote control device of FIGS. 4 and 5 is shown.
10 as the embossed sheet 14 and the switch section 11 as the wiring board 40
The tact switch 15 is arranged above, and the lead wire 12 is omitted. The embossed sheet 14 has a switch portion 11
The tact switch 15 is arranged below this, and the tact switch 15 operates in accordance with the movement of the switch section 11. Since the other parts are the same as or equivalent to those described above, the description thereof will be omitted.

[0005]

In the former example of the prior art, the membrane switch 10 itself is expensive,
Further, the cost of the terminal 42 and the labor cost for connecting with the wiring board 40 are high, resulting in high cost. Further, at the time of manufacturing, it is necessary to connect the terminal 42 and the lead wire 12, and especially in the case of a small electric device, this work is complicated.

In the latter example, the tact switches 15 are required for the desired number of switches, and especially when a large number of switch parts 11 and tact switches 15 are required, not only the cost becomes high, but also the entire device. Can not be miniaturized. That is, since the dimension between the wiring board 40 and the embossed sheet 11 is determined by the height of the tact switch 15, not only downsizing cannot be realized, but also a desired product design is hindered.

In view of the above problems, it is an object of the present invention to provide an electric switch which has flexibility in designing the shape of the device itself, is simple and inexpensive to assemble a case, and operates reliably.

[0008]

In order to solve the above problems, according to the present invention, a push button 22 is formed integrally with a case 20, and a base 50 is provided below the case 20. 50 forms a casing of the device, and in the space inside the casing, a sheet 70 is arranged on the lower surface of the push button 22 formed by the case 20, and the sheet 70 has a conducting portion 72 and an insulating portion. 74 is provided, the wiring board 40 is arranged on the lower surface of the sheet 70, and a spacer 76 for separating the two is provided in a part between the sheet 70 and the wiring board 40.

[0009]

In the above structure, when the push button 22 is not pushed, the sheet 70 and the wiring board 40 are separated by the spacer 76. Conversely, when the push button 22 is pushed,
By pressing the lower surface of the push button 22, a part of the sheet 70 changes a part of the pattern of the wiring board 40 from the conductive state to the insulating state or from the insulating state to the conductive state. The operation of conduction and insulation serves as the operation of the electric switch, and the desired device control is realized.

[0010]

1 is a sectional view of a remote control device for electric equipment showing an embodiment of the present invention, FIG. 2 is a partial sectional view showing an essential portion of FIG. 1, and FIG. 3 is an exploded perspective view of FIG. 1, 2, and 3, a plurality of switch portions 11 are integrally formed on the embossed sheet 14.

The embossed sheet 14 is attached to the upper surface of the case 20. The switch portion 11 of this case 20
A push button 22 is provided at a portion where is touched.
The push button 22 is formed integrally with the case 20 and operates in conjunction with the operation of the switch unit 11.

Below the case 20, there is a base 50,
The case 20 and the base 50 form a housing for the device, and a seat 70 and a display unit 3 described later are provided in a space inside the housing.
0, the display connector 32, and the wiring board 40 are stored.

A seat 70 is arranged on the lower surface of the push button 22 formed by the case 20. As shown in FIG. 3, the sheet 70 has a conducting portion 72 and an insulating portion 74. A wiring board 40 is arranged on the lower surface of the sheet 70, and a wiring pattern is printed on the wiring board 40.
It is 44. A spacer 76 is provided at a part between the sheet 70 and the wiring board 40 so as to separate the two.

When the switch portion 11 is pressed in the above structure, the lower surface of the push button 22 holds the sheet 70 on the wiring board.
The desired signal is transmitted to the wiring board 40 by pressing it against the wiring board 40.

In the present embodiment, the conducting portion 72 and the substrate conducting portion 44 are provided at the portions where the lower surface of the push button 22 abuts, and the other portion is the insulating portion 74. It is also possible to reverse the arrangement of the insulating portion and to transmit a signal of the insulating state when the push button 22 is pressed. Further, in this embodiment, as an example, an electric switch on a remote control device for electric equipment is used, but it goes without saying that it can be used as a switch for other electric equipment. Further, in this embodiment, the embossed sheet 14 is used due to the shape of the product.
However, if there is a push button integrally formed with the case 20, the same effect can be obtained even if the embossed sheet 14 is omitted.

[0016]

With the above structure, a large number of switch parts 11 can be provided without using a conventionally expensive membrane switch or a plurality of tact switches. Further, since the switch has a simple structure, it can be easily assembled at the manufacturing stage, and the degree of freedom in designing the device is increased.

Since the push button 22 is formed integrally with the case 20, there is no need to specially form the push button 22 as a separate part. When the push button 22 is configured as a single unit, an expensive mold is required at the manufacturing stage, and the manufacturing cost increases, but in the present invention, since the push button 22 is integrally molded with the case 20 as described above, the manufacturing cost is low. It can be reduced.

[Brief description of drawings]

FIG. 1 is a side sectional view of a remote control device equipped with an electric switch according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing a main part of FIG.

FIG. 3 is an exploded perspective view of FIG.

FIG. 4 is an exploded perspective view of a remote control device equipped with a conventional electric switch.

5 is a side sectional view of FIG.

FIG. 6 is a side sectional view of a remote control device equipped with another conventional electric switch.

[Explanation of symbols]

 In the drawings, the same reference numerals indicate the same or corresponding parts. 11 Switch Part 14 Embossing Sheet 20 Case 22 Push Button 40 Wiring Board 44 Board Conducting Part 50 Base 70 Sheet 72 Conducting Part 74 Insulating Part 76 Spacer

Claims (1)

[Claims] 1. A push button is formed integrally with a case, a base is provided below the case, and the case and the base form a housing of a device. A sheet is arranged on the lower surface of the push button formed by the case, a conductive portion and an insulating portion are provided on the sheet, and a wiring board is arranged on the lower surface of the sheet, and a portion between the sheet and the wiring board is disposed. The electrical switch has a spacer that separates the two.