CN203521251U

CN203521251U - Multidirectional light guide key structure

Info

Publication number: CN203521251U
Application number: CN201320531467.XU
Authority: CN
Inventors: 钟伟奇; 杨守卫; 张华彬; 钟启兴
Original assignee: Huizhou Desay SV Automotive Co Ltd
Current assignee: Huizhou Desay SV Automotive Co Ltd
Priority date: 2013-08-29
Filing date: 2013-08-29
Publication date: 2014-04-02
Anticipated expiration: 2023-08-29

Abstract

The utility model relates to a multidirectional light guide key structure, at least comprising an encoder, a key support, keycap assemblies, and backlight LEDs. The key support is fixed on a hollow position of the encoder. The keycap assemblies are separably fixed on the top end of the key support, and a plurality of dividing strips which are distributed uniformly and used to separate the keycap assemblies are integrally disposed on the top of the key support in a raising manner. Through combining the dividing strips and the key support, the multidirectional light guide key structure can effectively prevent pressing a wrong keycap, and effectively saves die-opening cost. The key support is made of a transmitting material, backlight emitted from a gap of the keycap would directly illuminate the key support and a trim strip on the top end, so that the backlight effect of whole key structure is more gorgeous and layered, and meanwhile a problem that the gap of the keycap leaks light is solved.

Description

A kind of multi-direction light guide key structure

Technical field

The utility model relates to on-vehicle acoustic apparatus field, particularly a kind of multi-direction light guide key structure.

Background technology

At present, Multi-aspect key assembly on on-vehicle acoustic apparatus comprises a plurality of key supports, a plurality of ornamental strips and a circle codification device being fixed on circuit board, wherein, a plurality of key switches are separately fixed on circuit board and are positioned at the hollow position place of circle codification device, key support be positioned at circle codification device hollow position directly over, and setting corresponding to key switch respectively, key support is generally black light-proof material and makes, for key switch provides guiding and supporting role, ornamental strip is fixed in the front capping of controller, often be distributed between button cap, play decoration and separate in addition the effect of all directions button cap, because be subject to the size restrictions of circle codification device, a plurality of buttons that are positioned at its hollow position place spacing is each other very little, thereby directly affect the distribution of LED backlight, because button assembly overall structure is too compact, the problem that often there will be wrong button cap, and the gap location of button often there will be the phenomenon of light leak, thereby accuracy and the whole visual effect of button are carried out in impact.

Summary of the invention

The purpose of this utility model is to provide a kind of multi-direction light guide key structure.

The present invention solves the problems of the technologies described above adopted technical scheme: a kind of multi-direction light guide key structure, comprise the encoder that is arranged on PCB circuit board top, be fixed on the key support at encoder hollow position place, be arranged on the keycap assembly at key support top, and be positioned at LED backlight and the key switch of described key support tail end below, described keycap assembly comprises that first keycap that is positioned at encoder hollow position top and a plurality of uniform ring are around being distributed in the first keycap the second keycap around, the top one of described key support is protruded and is formed with a plurality of dividers that are evenly distributed, described the second keycap and described divider are tight adjacent setting.

In a preferred embodiment, it is cylindric that described key support is roughly, its inside comprises that one for holding first passage and a plurality of second channel around described first passage of described the first keycap, described second channel is used for holding described the second keycap, and described divider is arranged on the intersection of two adjacent second channels.

In a preferred embodiment, the tail end of described the first keycap and the second keycap is formed with respectively the first buckle and second buckle that can be fastened with described key support, and the tail end of described key support is formed with the 3rd buckle that can be fastened with described encoder.

In a preferred embodiment, on the top surface of described the first keycap and the second keycap, be respectively arranged with the character of light-permeable; The light source that described key support sends the LED backlight that is arranged on its tail end below enters to derive.

The beneficial effect of the multi-direction light guide key structure of the utility model is:

1. by divider and key support are integrated, can effectively avoid pushing the wrong keycap, and effectively save die sinking cost;

2. key support adopts light transmissive material to make, therefore from the meeting backlight of sending between keycap gap, directly illuminate the ornamental strip on key support and top thereof, make the backlight effect of whole press-key structure better gorgeous, the sense that more has levels, also can cover the problem of keycap gap light leak simultaneously.

Accompanying drawing explanation

Fig. 1 is the decomposing schematic representation of multi-direction light guide key structure in an embodiment.

Embodiment

Below in conjunction with specific embodiment and accompanying drawing, the multi-direction light guide key structure of the utility model is described in further detail.

Refer to Fig. 1, a kind of multi-direction light guide key structure, it at least comprises encoder 30, key support 10, keycap assembly 20 and LED40 backlight, wherein, encoder 30 and LED40 backlight are all arranged on PCB circuit board (figure does not look), the tail end of key support 10 passes the hollow position 31 of encoder 30 and makes key support 10 be fixed on this hollow position place 31, the separable top that is fixed on key support 10 of keycap assembly 20.

Keycap assembly 20 comprise one roughly cylindrical the first keycap 21 and a plurality of uniform ring around being arranged on the first keycap 21 the second keycap 22 around, whole keycap assembly 20 present take centered by the first keycap 21, multi-direction structure that a plurality of the second keycap 22 is different directions.

Preferably, the top of key support 10 and protrude and to be formed with a divider 14 being evenly distributed more towards the position of described keycap assembly 20 one, the second keycap 22 is tight adjacent setting with this divider 14, so that divider 14 is effectively separated a plurality of the second keycaps 22.

It is cylindric that key support 10 is roughly, its inside comprises that one for holding first passage 11 and a plurality of second channel 12 around this first passage 11 of the first keycap 21, wherein second channel 12 is for holding the second keycap 22, and divider 14 is arranged on the intersection of two adjacent second channels 12.

The tail end of the first keycap 21 and the second keycap 22 is formed with respectively the first buckle 211 and second buckle 221 that can be fastened with key support 10, and the tail end of key support 10 is formed with the 3rd buckle 13 that can be fastened with encoder 30.

On the top surface of the first keycap 21 and the second keycap 22, be respectively arranged with the character of light-permeable, the light that LED backlight sends can be derived by this character.

Key support 10 adopts light transmissive material to make, and for the light source that the LED backlight that is arranged on its tail end below is sent, enters to derive.

To sum up, the multi-direction light guide key structure of the utility model, by divider and key support are integrated, can effectively avoid pushing the wrong keycap, and effectively save die sinking cost; And key support adopts light transmissive material to make, from the meeting backlight of sending between keycap gap, directly illuminate the ornamental strip on key support and top thereof, thereby the backlight effect that makes whole press-key structure is better gorgeous, the sense that more has levels, also can cover the problem of keycap gap light leak simultaneously.

Although description of the present utility model is carried out in conjunction with above specific embodiment,, those skilled in the art can carry out many replacements, modifications and variations, be apparent according to above-mentioned content.Therefore, all such substituting, improve and change are all included in the spirit and scope of attached claim.

Claims

1. a multi-direction light guide key structure, comprise the encoder that is arranged on PCB circuit board top, be fixed on the key support at encoder hollow position place, be arranged on the keycap assembly at key support top, and be positioned at LED backlight and the key switch of described key support tail end below, described keycap assembly comprises that first keycap that is positioned at encoder hollow position top and a plurality of uniform ring are around being distributed in the first keycap the second keycap around, it is characterized in that, the top one of described key support is protruded and is formed with a plurality of dividers that are evenly distributed, described the second keycap and described divider are tight adjacent setting.

2. multi-direction light guide key structure according to claim 1, it is characterized in that, described key support is cylindric, its inside comprises that one for holding first passage and a plurality of second channel around described first passage of described the first keycap, described second channel is used for holding described the second keycap, and described divider is arranged on the intersection of two adjacent second channels.

3. multi-direction light guide key structure according to claim 2, it is characterized in that, the tail end of described the first keycap and the second keycap is formed with respectively the first buckle and second buckle that can be fastened with described key support, and the tail end of described key support is formed with the 3rd buckle that can be fastened with described encoder.

4. according to the multi-direction light guide key structure described in claim 1-3 any one, it is characterized in that, on the top surface of described the first keycap and the second keycap, be respectively arranged with the character of light-permeable; The light source that described key support sends the LED backlight that is arranged on its tail end below enters to derive.