JPH05205557A - Light emitting type switch - Google Patents

Abstract

PURPOSE:To enable a switch operation indication to be clearly recognized, size to be small as a whole, and assembly to be easy by lightening directly the push-button of a light emitting type switch. CONSTITUTION:A light emitting type switch 10 is fitted to a switch holder 12 holding a switch main body 16, and is provided with a push-button 20 operating the operating piece 14 of the switch main body 16. The push-button 20 is molded and formed of transparent resin so as to embed a chip type light emitting element 50 in the push-button 20. The chip type light emitting element 30 is connected to an external electric circuit via a read piece 32 a coil spring 18 and a read terminal 34. The light emitting element 30 passes through in the push-button 20 directly so as to lighten the push-button 20 directly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push button switch used in various office automation equipment and the like, and more particularly, it can illuminate the push button in conjunction with the push operation of the push button to indicate that the push button is in operation. The present invention relates to a light emitting switch that can be used.

[0002]

2. Description of the Related Art A push button switch is required to illuminate the push button in order to indicate that the push button switch is operating.

The prior art illumination means used for a push button switch is, for example, arranged independently of the push button in the depression of the push button so as not to interfere with the depression of the push button, and electrically connected to the wiring board. It consists of a mechanically mounted illumination lamp (eg.
41791).

[0004]

However, in this prior art push button switch, since the illumination lamp is provided independently of the push button, the light emitted from the illumination lamp illuminates the push button evenly. Therefore, the visibility of the operation display of the switch is low, and a space for incorporating the illumination lamp is required. Therefore, there is a drawback that the switch becomes large as a whole.

It is an object of the present invention to provide a light-emitting switch capable of directly illuminating a push button so as to illuminate the switch evenly so that the operation display of the switch can be clearly recognized.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a switch holder, a switch body provided in the switch holder, and a push button attached to the switch holder for operating the switch body. And a light emitting means for emitting light so as to illuminate the push button, the light emitting means comprising a chip-type light emitting element electrically connected and mounted on a conductive thin plate, and the push button is a thin conductive plate. Is formed by molding with a plastic resin so that a part of the switch is exposed and the chip type light emitting element is embedded.The switch holder is attached to the switch holder and partly exposed inside the switch holder. And a lead button for the light emitting element, and electrically connects between the exposed portion of the conductive thin plate of the push button and the inside exposed portion of the lead terminal for the light emitting element. And a light-emitting switch, characterized in that yl spring is provided.

[0007]

As described above, when the light emitting means is composed of the chip type light emitting element and the chip type light emitting element is embedded in the push button, the push button is directly illuminated so as to irradiate light evenly. The switch operation display can be clearly recognized.

Further, when the chip type light emitting element which is the light emitting means is embedded in the push button, it is not necessary to install a special space for arranging the light emitting source in the switch, and the size of the switch is reduced as a whole. be able to. Further, since the light emitting means and the push button can be formed at the same time, the assemblability of the switch is improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, an embodiment of the present invention will be described in detail. FIG. 1 shows an embodiment of a light emitting switch 10 according to the present invention. The light emitting switch 10 is an insulating switch holder. 12, a switch body 16 provided in the switch holder 12 and having an operator 14, a translucent push button 20 attached to the switch holder 12 and pushing down the actuator 14 of the switch body 16 against the spring 18. A light emitting means 22 for emitting light so as to illuminate the push button 20 is provided.

The switch body 16 is, in the illustrated embodiment,
As shown in FIG. 3, the switch body 16 is shown to be in the form of a push-button type switch. However, the switch body 16 is in the form of a micro switch as shown in FIG. 4 or a movable contact activation type as shown in FIG. It may be in the form of a switch.
The contacts of any of the form field switch bodies 16 are closed by pressing the push button 14A, the push rod 14B, or the movable contact holder 14C, which are the operating elements 14.

This switch body 16 is shown in FIGS.
As shown in FIG. 3, the switch holder 12 is inserted into and held by a holding wall 24 which rises from the bottom surface of the switch holder 12, and the holding wall 24 elastically engages with a through hole 16a which extends through the lower side of the switch body 16. An engaging protrusion 24a for entering is provided. Therefore, the switch body 16 is attached to the holding wall 2
4 is inserted from below and reaches the position shown in Fig. 1,
Since the protrusion 24 a is engaged with the through hole 16 a of the switch body 16, the switch body 16 is fixedly held in the switch holder 12.

The push button 20 is provided on both sides thereof with retaining projections 2 which are engaged with the elongated holes 12a of the switch holder 12 facing each other.
0a, the push button 20 is normally biased upward by the coil spring 18 so that the retaining projection 20a engages with the upper edge of the elongated hole 12a, and the switch body 16 normally opens the contact. Holds like you are.

The light emitting means 22 is a chip type light emitting device 30 electrically connected to and mounted on a pair of conductive thin plates 28.
Made of. This chip type light emitting device (LED) 30
Are integrally embedded in the push button 24. In the illustrated embodiment, the chip-type light emitting device 30 is in the form of two terminals, so the conductive thin plate 28 has two lead pieces 32 respectively connected to the two terminals.
The conductive thin plate 28 is used for a large number of chip type light emitting devices 3.
It is composed of a metal lead frame having a large number of pairs of lead pieces 32 for soldering 0, and a large number of these chip type light emitting elements 30 are separated for each corresponding pair of lead pieces so that each chip type light emitting element 30 with a lead piece is independent. To form.

The push button 20 is formed by molding a plastic resin so that only the pair of lead pieces 32 of the conductive thin plate 28 of the light emitting means 22 is exposed and the chip type light emitting element 30 is embedded. As shown in FIGS. 1 and 6, the pair of lead pieces 32 are exposed in a spring holding hole 20b that is opened in the lower surface of the push button 20.

The switch holder 12 includes a pair of light-emitting element lead terminals 34, 3 which include internal ends 34a, 34'a exposed on the inner surface thereof and which are led out of the switch holder 12.
The coil spring 18 for an operator has a lead piece 32 exposed through the spring holding hole 20b of the push button 20 and the inner ends 34a, 34 'of the light emitting element lead terminals 34, 34'. It is provided by being compressed between a and a.

The push button 20 is molded from a translucent resin in which the chip type light emitting element 30 is embedded, and the light from the light emitting element 30 is simply emitted from the push button 20 to the outside when the switch body 16 is operated. However, the push button 20 has a non-translucent resin portion 21 (see a dotted line in FIG. 1) covering the translucent resin so that a display such as a character or a pattern is exposed on the surface of the push button 20. Good.

Next, referring to the usage state of the light emitting switch 10 of the present invention, the light emitting switch 10 includes a lead terminal 17 of the switch body 16 and a light emitting element lead terminal 3.
4, 34 'are connected to a wiring circuit of a wiring board of a device (not shown) by soldering or the like to be used as an open / close switch for a predetermined circuit of the device, and at the same time, depending on the operation of the switch body 16, between lead terminals 34, 34'. To electrically energize the light emitting element 30.

The push button 20 normally pushes up the push button 20 by the spring 18 to open the contact of the switch body 16. When the push button 20 is pushed down against the spring 18, the operating element 14 of the switch body 16 is pushed down, and thus the contacts of the switch body 16 are closed.

For this reason, the device performs a predetermined operation, but in this case, since the chip type light emitting element 30 is electrically energized as already mentioned, the light emitting element 30 emits light and this light is pushed. It passes through the button 20 and is emitted to the outside. Therefore, it is displayed that the light emitting switch 10 is in operation.

Particularly, the light emitting means 22 is the chip type light emitting element 3.
Since the chip type light emitting element 30 is made up of 0 and is embedded in the push button 20, the light emitted from the light emitting element 30 directly illuminates the push button 20, so that the push button 20 is evenly illuminated. , The switch operation display can be clearly recognized.

Further, since the chip type light emitting element 30 which is the light emitting means 22 is embedded in the push button 20, there is no need to install a special space for arranging the light emitting source in the switch 10, and the switch 10 as a whole. It can be seen that the size can be made smaller.

In the above embodiment, the case where the two-terminal (single color type) chip type light emitting device 30 is used is described.
It is possible to use a chip-type light emitting element having a multicolor of two or more colors and having three or more terminals. In this case, the number of lead pieces 32 of the conductive thin plate 28 is equal to the number of terminals of the chip type light emitting element. Provided accordingly.

[0022]

According to the present invention, as described above, the light emitting means is composed of the chip type light emitting element, and the chip type light emitting element is formed so as to be embedded in the push button. Since it can be directly illuminated, the light is evenly transmitted through the push button, and the operation display of the switch can be clearly recognized. Further, since the chip-type light emitting element which is the light emitting means is embedded in the push button and both are integrated, there is no need to install a special space for arranging the light emitting means in the switch, and the switch can be configured as a whole. The size of the switch can be further reduced, and the formation of the light emitting means and the formation of the push button can be performed at the same time.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a light emitting switch according to the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of a switch holder that holds a switch body.

FIG. 3 is a perspective view of an example of a switch body used in the present invention.

FIG. 4 is a perspective view of another example of the switch body used in the present invention.

FIG. 5 is a perspective view of still another example of the switch body used in the present invention.

FIG. 6 is an enlarged rear view of the push button used in the present invention.

FIG. 7 is a perspective view of a part of a lead frame having a chip type light emitting device used in the present invention.

[Explanation of symbols]

 10 Light-Emitting Switch 12 Switch Holder 12a Long Hole 14 Operator 16 Switch Body 16a Through Hole 17 Lead Terminal 18 Spring 20 Push Button 20a Retaining Protrusion 20b Retaining Hole 22 Light-Emitting Means 24 Retaining Wall 24a Engaging Protrusion 28 Conductive Thin Plate 30 Chip Type light emitting element 32 lead piece 34 light emitting element lead terminal

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[Procedure amendment]

[Submission date] December 7, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

[Correction content]

[Figure 5]

Claims (1)

[Claims] 1. A switch holder, a switch main body provided in the switch holder, a push button attached to the switch holder for operating the switch main body, and a light emitting means for emitting light so as to illuminate the push button. The light emitting means comprises a chip type light emitting element electrically connected to and attached to a conductive thin plate, and the push button has a chip type light emitting element embedded in which a part of the conductive thin plate is exposed. Is formed by molding with a plastic resin so that the switch holder has a lead terminal for a light emitting element that is attached to the switch holder and has a part exposed in the switch holder and is led out to the outside. A coil spring for electrically connecting between the exposed portion of the conductive thin plate of the push button and the internal exposed portion of the lead terminal for the light emitting device. A light-emitting switch that is provided with a ridge.