CN203165738U

CN203165738U - Illuminating press key apparatus and electrical equipment

Info

Publication number: CN203165738U
Application number: CN 201320023582
Authority: CN
Inventors: 朱清泉
Original assignee: Hisense Broadband Multimedia Technology Co Ltd
Current assignee: Hisense Broadband Multimedia Technology Co Ltd
Priority date: 2013-01-16
Filing date: 2013-01-16
Publication date: 2013-08-28
Anticipated expiration: 2023-01-16

Abstract

The utility model discloses an illuminating press key apparatus and electrical equipment. The illuminating press key apparatus comprises a press key and a light guide assembly, wherein the press key comprises a keycap and a contact head which is rigidly connected with the keycap, and the contact head moves along the direction of the force applied on a front end face of the keycap when the front end face of the keycap is pressed; the light guide assembly comprises a first light guide column and a light guide column support rack, and the light guide column support rack is arranged at the periphery of the first light guide column and is used for fixing the first light guide column; the first light guide column accommodates the keycap; and a rear end face of the first light guide column is close to an illuminating device in the electrical equipment and is used for conducting light emitted by the illuminating device. The illuminating press key apparatus is characterized in that the light emitted by the current illuminating device in the electrical equipment is conducted through the light guide column to the front end face of the light guide column, and then the press key is enabled to illuminate to fulfill an indicating function. The illuminating press key apparatus is advantaged by low production cost and simplified lines of the electrical equipment.

Description

Light-emitting key device and electrical equipment

Technical Field

The utility model relates to an electrical equipment field especially relates to a luminous button device and use device's electrical equipment.

Background

At present, electrical equipment such as an IPTV (interactive network television), a set-top box, a television, a DVD, and the like can quickly position a power key to illuminate the power key in order to display a working state or in a dark state, so as to achieve an indication effect. The principle that the power supply key of the existing electrical equipment can emit light is as follows: special light-emitting electronic devices are arranged around the corresponding position of the power key or close to the position of the power key, and meanwhile, a special circuit is arranged on a circuit board in the electrical equipment to control the switch of the light-emitting electronic devices. When the power key is pressed, the circuit of the electrical equipment is connected, the special light-emitting electronic device emits light, and the power key emits light. However, the cost of the special light-emitting electronic device is high, so that the production cost of the electrical equipment is increased, the batch production of the electrical equipment is not facilitated, and the market share of the electrical equipment is reduced. And because the circuit board in the electrical equipment is provided with a special circuit to control the switch of the light-emitting electronic device, the circuit of the electrical equipment is also complicated.

Accordingly, there is a need for a light-emitting key device that can be manufactured at a low cost and simplify the wiring of electrical equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a manufacturing cost is lower, can simplify the luminous button device of electrical equipment circuit.

The utility model discloses a utility model aims at still providing an electrical equipment who uses above-mentioned luminous button device.

According to an embodiment of the present invention, there is provided a light-emitting key device, comprising a key and a light guide member, wherein,

the key comprises a keycap and a contact rigidly connected with the keycap, and the contact moves along the direction of stress of the front end face of the keycap when the front end face of the keycap is pressed;

the light guide assembly comprises a first light guide column and a light guide column bracket,

the light guide column bracket is arranged at the periphery of the first light guide column and used for fixing the first light guide column;

the first light guide column accommodates the keycap, and the rear end face of the first light guide column is close to the light emitting device inside the electrical equipment and used for conducting light emitted by the light emitting device.

Furthermore, the key also comprises a supporting plate, a first elastic bracket and a second elastic bracket, wherein,

the first elastic support and the second elastic support are arranged at two ends of the supporting plate and are vertical to the supporting plate, and the upper connecting ends of the first elastic support and the second elastic support are respectively fixedly connected with two sides of the rear end face of the keycap;

the first elastic support and the second elastic support are different in thickness, and the thickness of the first elastic support is smaller than that of the second elastic support.

And the mounting position of the contact is close to the joint of the upper connecting end of the first elastic support and the keycap.

Preferably, the supporting plate is provided with a baffle:

the baffle is arranged on the upper surface of the supporting plate and is vertical to the upper surface of the supporting plate; the front end face of the baffle and the front end face of the supporting plate are on the same vertical face.

Preferably, the supporting plate is further provided with a positioning groove:

the locating slot is a U-shaped hole and is used for locating when the supporting plate is installed.

Furthermore, a second light guide column and a third light guide column are arranged on the light guide column bracket,

the second light guide column and the third light guide column are arranged on the rear end face of the light guide column support, and the first light guide column, the second light guide column and the third light guide column are arranged in parallel.

Preferably, the light guide pole bracket is provided with a light isolation hole,

the light isolation hole is located between two sides of the first light guide column and the second light guide column and between the second light guide column and the third light guide column and used for preventing light rays emitted by a plurality of light emitting devices in the electrical equipment from carrying out light ray interference on the first light guide column, the third light guide column and the second light guide column.

Preferably, the light guide post bracket is provided with a positioning plate,

the positioning plates are arranged on two sides of the light guide column support and used for positioning the installation position of the light guide column support inside the electrical equipment.

Preferably, the key cap is a circular key cap, and the first light guide column is an annular light guide column.

Preferably, the cross-section of the contact is cross-shaped.

According to another aspect of the present invention, there is also provided an electrical apparatus, comprising an upper casing, a lower casing and a circuit board disposed in the lower casing, wherein the circuit board is provided with a light emitting device and a light touch switch for controlling the circuit to be conducted, the electrical apparatus further comprises a fixing plate and a light emitting button device,

the fixing plate is fixed on the inner surface of the lower shell of the electrical equipment and used for fixing the light-emitting key device;

the light-emitting key device comprises a key and a light guide component,

the key comprises a keycap and a contact, the keycap is rigidly connected with the contact, and the contact moves to the light-touch switch along the direction of the stress of the front end face of the keycap when the front end face of the keycap is pressed;

the first light guide column accommodates the keycap, and the rear end face of the first light guide column is close to the light emitting device on the circuit board and used for conducting light emitted by the light emitting device.

Furthermore, the key in the light-emitting key device also comprises a support plate, a first elastic bracket and a second elastic bracket, wherein the fixing plate is provided with a positioning rib,

the supporting plate is provided with a positioning groove, and the positioning groove is sleeved on the positioning rib and used for fixing the light guide assembly in the front and back directions;

Preferably, the installation position of the contact is close to the position where the upper connecting end of the first elastic support is connected with the keycap.

Furthermore, a baffle plate is arranged on the supporting plate,

Furthermore, a second light guide column and a third light guide column are arranged on the rear end surface of the light guide column bracket, a first light emitting diode, a second light emitting diode and a remote control emitting head are arranged on the circuit board, wherein,

the first light emitting diode is arranged opposite to the first light guide column; the second light guide column is opposite to the second light emitting diode; the third light guide column is opposite to the remote control transmitting head.

Furthermore, the light guide pole bracket is provided with a light isolation hole,

the light isolation hole is located between two sides of the first light guide column and the second light guide column and between the second light guide column and the third light guide column and used for preventing light rays emitted by a plurality of light emitting devices in the electrical equipment from carrying out light ray interference on the first light guide column, the second light guide column and the third light guide column.

Furthermore, the light guide post bracket is provided with a positioning plate, the electrical equipment is internally provided with a clamping hook,

the locating plate sets up in the both sides of leaded light post support, the trip with the locating plate block for realize that leaded light subassembly is fixed in left and right directions.

Preferably, the upper shell further comprises a blocking rib,

the blocking rib is arranged at the rear end of the keycap, fixed at the top of the upper shell and used for stopping when the keycap is pressed into a certain stroke.

According to the above technical scheme, because the utility model provides a light-emitting key device is through the light conduction that first leaded light post sent the inside current light emitting device of electrical equipment to the preceding terminal surface of first leaded light post so that the button is luminous, reaches the indicative function, consequently the utility model discloses owing to do not need set up special light-emitting electron device alright realize the button is luminous around the button, and avoided setting up special circuit on the inside circuit board of electrical equipment in order to control corresponding light-emitting electron device, consequently the utility model has the advantages of low in production cost can simplify the electrical equipment circuit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art further embodiments and drawings can be derived from the embodiments shown in the drawings.

Fig. 1 shows a schematic structural view of a light-emitting key device in embodiment 1;

FIG. 2 is a schematic view showing the structure of a key in embodiment 1;

FIG. 3 is a front view showing a key in embodiment 1;

fig. 4 shows a schematic structural view of a light guide member in embodiment 1;

fig. 5 shows a schematic structural view of a light guide member in embodiment 2;

fig. 6 shows an external structural diagram of an electric device;

FIG. 7 is a schematic view showing a structure of an unpacked circuit board inside an electric device;

FIG. 8 is a schematic view showing a structure of a built-in circuit board inside an electric device;

fig. 9 shows a partial structural view of the upper case.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

The utility model discloses a thinking does: the periphery of the key cap is provided with the light guide column, one end of the light guide column, which extends into the electrical equipment, is adjacent to the light emitting device in the electrical equipment, and the light guide column emits light by conducting the light of the light emitting device.

The structure and the operation principle of the present invention will be explained in detail by the following embodiments.

Example 1:

fig. 1 shows a schematic structural diagram of the light-emitting key device in the present embodiment. As shown in fig. 1, the light-emitting key device includes two parts, a key 1 and a light guide member 2. The light guide component 2 is sleeved on the periphery of the key.

Fig. 2 shows a schematic structural diagram of a key.

Fig. 3 shows a front view of the key.

As shown in fig. 2 and 3, the key 1 includes a support plate 11, a circular key cap 12, a first elastic support 13, a second elastic support 14, and a contact 15.

The supporting plate 11 is a horizontal supporting plate for supporting the whole key structure.

The first and second

elastic brackets

13 and 14 are provided at both ends of the support plate 11 and are perpendicular to the support plate 11. The upper connecting ends of the first elastic support 13 and the second elastic support 14 are respectively fixedly connected with two sides of the rear end face of the keycap 12. The first elastic support 13 and the second elastic support have different thicknesses, wherein the thickness of the first elastic support 13 is smaller than the thickness of the second elastic support. The utility model discloses in not injecing the shape of first elastic support 13 and second elastic support 14, as long as both can support the key cap and simultaneously thickness between them varies, wherein one side elastic support compare in the earlier shape that takes place deformation of opposite side elastic support when the key cap is pressed all can be used to realize the utility model discloses.

The contact 15 is rigidly connected to the rear end face of the key cap 12 and is vertically fixed to the rear end face of the key cap 12, and the mounting position of the contact is close to the connection position of the upper connection end of the first elastic support 13 and the key cap 12. When the front end face of the keycap 12 is pressed, the contact 15 moves along the direction of the force applied to the front end face of the keycap 12 to contact a tact switch which is conducted by a control circuit in the electrical equipment. Preferably, in this embodiment, the cross-section of the contact 15 is "cross-shaped". The shape of the contact 15 is cross-shaped, which is beneficial to increase the contact area with the tact switch. The shape of the contact 15 is only exemplary, the shape of the contact 15 is not limited to the cross shape, and the shape of the contact 15 that increases the contact area of the light touch switch can be used to realize the present invention.

Further, a baffle 16 and a positioning slot 17 are arranged on the supporting plate 11. Baffle 16 sets up in the upper surface of backup pad 11 and perpendicular with the upper surface of backup pad 11, and baffle 16 preceding terminal surface and the preceding terminal surface of backup pad 11 are at same vertical face for when the button is installed in electrical equipment inside with the internal surface laminating of electrical equipment casing, wherein, the preceding terminal surface of baffle and the preceding terminal surface of backup pad are just to the terminal surface of reader in the button elevation view of figure 3, the terminal surface relative with preceding terminal surface is the rear end face. The positioning groove 17 is a U-shaped hole for positioning when the support plate 11 is installed.

In this embodiment, the supporting plate 11, the key cap 12, the first elastic support 13, the second elastic support 14 and the contact 15 of the key are made of transparent materials. The front end face of the keycap 12 is painted, and the paint color is silver or other colors. The key cap 12 central authorities mark the power symbol, and the power symbol adopts radium carving mode sculpture. Since the key cap 12 is made of transparent material, when the light emitting diode inside the electrical appliance emits light, the power source symbol on the key cap 12 emits light. The power source symbol marked in the center of the key cap 12 is merely exemplary, and the symbol marked in the center of the key cap 12 may be changed according to the needs of the user. Carving different symbols in the center of the keycap 12 in a laser carving mode is prior art and is not described herein.

Fig. 4 shows a schematic structural diagram of a light guide assembly in embodiment 1. As shown in fig. 4, the light guide assembly 2 includes a first light guide 21 and a light guide holder 22.

In this embodiment, the first light guide pillar 21 is an annular light guide pillar. The front end face (set up in the terminal surface of electrical equipment surface) of first light guide column 21 is in same vertical face with the preceding terminal surface of key cap 12, and the rear end face (the terminal surface that extends into electrical equipment inside) of first light guide column 21 extends to electrical equipment inside and is close to with the emitting diode on the electrical equipment internal circuit board, and first light guide column 21 is used for the preceding terminal surface of light-emitting diode's the light-emitting through the rear end face conduction of first light guide column 21 to first light guide column 21 is luminous. Wherein,

the light guide pillar support 22 is disposed on two sides of the first light guide pillar 21, and a supporting surface thereof is attached to and fixedly connected with an outer surface of the first light guide pillar 21 for supporting the first light guide pillar 21. The axis of the first light guide 21 is perpendicular to the light guide holder 22.

In this embodiment, the first light guide pillar 21 is annular to match the circular key cap 12. But first leaded light post 21 sets up to the annular just exemplarily, all can set up in keycap 12 periphery and can realize the leaded light post of leaded light arbitrary shape and all can be used for realizing the utility model discloses.

Further, the light guide post bracket 22 is further provided with a light isolation hole 23 and a positioning plate 24.

The light isolation holes 23 are located on two sides of the first light guide column 21 and used for preventing light rays emitted by a plurality of light emitting diodes arranged on an internal circuit board of the electrical equipment from interfering with the first light guide column 21.

Positioning plates 24 are disposed on both sides of light guide bar support 22. When the light guide post bracket 22 is installed inside the electrical equipment, the installation position of the light guide post bracket 22 can be quickly positioned by the positioning plate 24.

The working principle of the present invention will be explained in detail below.

When the front end face of the keycap 12 is pressed hard, the first elastic support 13 with smaller thickness is deformed first because the thickness of the first elastic support 13 is different from that of the second elastic support 14, so that the contact close to the first elastic support 13 extends forwards to close the tact switch for switching on the control circuit, and the circuit of the electrical equipment is switched on. After the electrical equipment circuit switched on, the emitting diode that sets up on its inside circuit board worked, because the utility model provides a first leaded light post 21 is adjacent with the rear end face with emitting diode, and first leaded light post 21 is with the light conduction that emitting diode sent to the preceding terminal surface of first leaded light post 21, then luminous around key cap 12 to reach the indicative function.

Example 2:

the structure of the light-emitting key device in this embodiment is similar to that of the light-emitting key device in embodiment 1, and the difference is that the structure of the light guide assembly is different. Fig. 5 shows a schematic structural diagram of the light guide member 2 in embodiment 2. As shown in FIG. 5, the light guide assembly 2 further includes a second light guide 26 and a third light guide 25. The second light guide column 26 and the third light guide column 25 are both disposed on the rear end face of the light guide column support 22, and the first light guide column 21, the third light guide column 25 and the second light guide column 26 are disposed in parallel. Light isolation holes 23 are formed on two sides of the first light guide column 21 and between the second light guide column 26 and the third light guide column 25.

The front end surfaces of the second light guide column 26 and the third light guide column 25 and the front end surface of the first light guide column 21 (defined as the same as the front end surface of the first light guide column) are located on the same vertical plane, and the rear end surfaces of the second light guide column 26 and the third light guide column 25 are respectively close to different light emitting diodes or other light emitting devices inside the electrical equipment.

The operating principle of the light-emitting key device in this embodiment is the same as that in embodiment 1, and when the front end surface of the keycap 12 is pressed hard, the contact extends forward to close the tact switch for conducting the control circuit, so that the circuit of the electrical equipment is conducted. After the internal circuit of the electrical equipment is switched on, the light emitting diode or other light emitting devices emit light, and the first light guide column 21, the second light guide column 26 and the third light guide column 25 all emit light, so that the indicating function is achieved.

Since the light-emitting key device in this embodiment has a plurality of light guide posts, the light-emitting key device in this embodiment is suitable for electrical equipment with a plurality of indication functions.

Because the utility model provides a light-emitting key device is through the light conduction that first leaded light post 21 sent the inside current light emitting device of electrical equipment to the preceding terminal surface of first leaded light post 21 so that the button is luminous, reaches indicative function, consequently the utility model discloses owing to need not set up special light-emitting electron device around the button alright realize that the button is luminous, and avoided setting up special circuit on the inside circuit board of electrical equipment in order to control corresponding light-emitting electron device, consequently the utility model has the advantages of low in production cost can simplify the electrical equipment circuit.

According to the utility model discloses an on the other hand provides an use the utility model discloses an electrical equipment of luminous button device.

Fig. 6 shows an external configuration diagram of the electric appliance.

Fig. 7 is a schematic view showing a structure of an electrical appliance in which a circuit board is not mounted.

Fig. 8 is a schematic view showing a structure of a built-in circuit board inside an electric appliance.

As shown in fig. 6, 7 and 8, the electric apparatus includes a lower case 30, an upper case 31, a light-emitting key device 32 and a circuit board 33. The light-emitting key device 32 has the structure of the light-emitting key device 32 in embodiment 2. The second light guide 26 and the third light guide 25 on the light guide holder 22 in the light-emitting key device 32 can be used as indicators for other functions. If the electric appliance has only one light-emitting key device 32 and no other indicator light, the structure of the light-emitting key device 32 in embodiment 1 is adopted.

As shown in fig. 7, the electrical apparatus is provided with a fixing plate 34, a positioning rib 35 and a hook 36. The fixing plate 34 is fixed to the inner surface of the lower case 30 of the electric appliance. The positioning ribs 35 are fixed to the upper surface of the fixing plate 34 and are perpendicular to the fixing plate 34. The supporting plate 11 is fixed in the front-back direction (referring to the front view of the electrical equipment) by the positioning groove 17 sleeved on the positioning rib 35.

The hook 36 is disposed on the inner surface of the front housing of the electrical device, and is used to clamp the positioning plates 24 on both sides of the light guide pillar bracket 22, so as to fix the light guide pillar bracket 22 in the left-right direction (refer to the direction of the front view of the electrical device).

The light-emitting key device 32 can be firmly fixed inside the electrical apparatus by the fixing plate 34, the positioning rib 35 and the hook 36.

As shown in fig. 8, a touch switch 37, a first light emitting diode 38, a second light emitting diode 39, and a remote control emitting head 40 are disposed on the circuit board 33 of the electrical apparatus. The contact 15 is opposite to the tact switch 37; the first light emitting diode 38 is arranged opposite to the annular first light guide column 21; the third light guide pillar 25 is opposite to the remote control transmitting head 40; the second light guide 26 is opposite to the second light emitting diode 39. When the key cap 12 is pressed down, the contact 15 touches the tact switch 37 to conduct the circuit of the electrical equipment, and then the first light emitting diode 38, the second light emitting diode 39 and the remote control emitting head 40 emit light, so that the annular first light guide column 21, the annular third light guide column 25 and the annular second light guide column 26 emit light, and the indicating function is achieved. The positions of the first led 38, the second led 39, and the remote control emitting head 40 shown in fig. 8 are only exemplary, and all the installation positions that enable the annular first light guide column 21, the annular third light guide column 25, and the annular second light guide column 26 to guide light all fall into the protection scope of the present invention.

Further, the upper case 31 of the electrical apparatus is further provided with a rib 41. Fig. 9 is a partial schematic structural view of the upper case 31, as shown in fig. 9. The barrier rib 41 is fixed to the top of the upper case 31. The utility model discloses in, keep off muscle 41 and set up in the rear end of key cap 12, can withstand fender muscle 41 after the user presses into certain stroke when key cap 12, realize ending the position, avoid leading to luminous button device 32 to damage because the user excessively hard.

The utility model provides an electrical equipment can be electrical equipment such as IPTV, STB, TV, DVD.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A luminous key device is characterized by comprising a key and a light guide component, wherein,

2. The illuminated key device according to claim 1, wherein said key further comprises a support plate, a first resilient support, a second resilient support, wherein,

the thickness of the first elastic support is smaller than that of the second elastic support.

3. The illuminated key device according to claim 1, wherein said contact is mounted near a junction of an upper connection end of said first resilient support and said key cap.

4. The illuminated key device according to claim 2, wherein said support plate is provided with a baffle:

5. The illuminated push-button device according to claim 2 or 4, wherein said supporting plate is further provided with positioning grooves:

6. The illuminated key device according to claim 1, wherein a second light guide and a third light guide are further provided on said light guide holder,

7. The illuminated key device according to claim 6, wherein said light guide pillar support is formed with a light blocking hole,

8. The illuminated key device according to claim 1, 6 or 7, wherein a positioning plate is provided on said light guide pillar support,

9. The illuminated key device of claim 1, wherein the key cap is a circular key cap and the first light guide is an annular light guide.

10. The illuminated key device according to claim 1 or 3, wherein said contact has a cross-section.

11. An electrical equipment, comprising an upper shell, a lower shell and a circuit board arranged in the lower shell, wherein the circuit board is provided with a light-emitting device and a light-touch switch for controlling the conduction of a circuit, and is characterized in that the electrical equipment also comprises a fixing plate and a light-emitting key device,

the light-emitting key device comprises a key and a light guide component,

the key comprises a keycap and a contact rigidly connected with the keycap, and the contact moves to the light-touch switch along the direction of the stress of the front end face of the keycap when the front end face of the keycap is pressed;

the first light guide column accommodates the keycap, and the rear end face of the first light guide column is adjacent to the light emitting device on the circuit board and used for conducting light emitted by the light emitting device.

12. The electrical equipment of claim 11, wherein the key of the light-emitting key device further comprises a support plate, a first elastic support, and a second elastic support, and the fixing plate is provided with positioning ribs, wherein,

13. The electrical apparatus of claim 11, wherein the contact is mounted proximate to where the upper connection end of the first resilient support is coupled to the keycap.

14. The electrical apparatus of claim 12, wherein the support plate further comprises a baffle plate,

15. The electrical apparatus of claim 11, wherein the rear end surface of the light guide post holder is provided with a second light guide post and a third light guide post, and the circuit board is provided with a first light emitting diode, a second light emitting diode, and a remote control emitter, wherein,

16. The electrical apparatus of claim 15, wherein the light guide post holder is formed with a light blocking hole,

the light isolation hole is located between the two sides of the first light guide column and the third light guide column and between the third light guide column and the second light guide column and used for preventing light rays emitted by a plurality of light emitting devices in the electrical equipment from carrying out light ray interference on the first light guide column, the second light guide column and the third light guide column.

17. The electrical equipment of claim 11 or 16, wherein the light guide pillar support is provided with a positioning plate, the electrical equipment is internally provided with a hook,

18. The electrical apparatus of claim 11, wherein the upper shell further comprises a retaining rib,