CN207183131U - Key lighting device - Google Patents
Key lighting device Download PDFInfo
- Publication number
- CN207183131U CN207183131U CN201721079577.1U CN201721079577U CN207183131U CN 207183131 U CN207183131 U CN 207183131U CN 201721079577 U CN201721079577 U CN 201721079577U CN 207183131 U CN207183131 U CN 207183131U
- Authority
- CN
- China
- Prior art keywords
- key
- flexible pcb
- keycap
- lighting device
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a kind of key lighting device, including a switch key, flexible PCB, LED, dome switch, supporting plate.Dome switch and LED are realized by LED by the bending of flexible PCB by the application, dome switch is separately fixed at the two sides of supporting plate, push action is acted with illuminated push button and be independent of each other, improve the uniformity of illumination.
Description
Technical field
The utility model is related to the technical field of key illumination, more specifically, be related to a kind of key lighting device and its
Application process.
Background technology
Button is a kind of common application in the intelligent terminals such as mobile phone, PAD, automatic navigator, in the prior art generally
It is the side that lighting device is arranged on to button, key illumination is realized by light guide plate, this implementation is filled due to illumination
The position put is arranged on side, illumination unevenness easily occurs, and shade can be produced in button.
Therefore, how to ensure the Uniform Illumination of button turns into the problem to be solved in current key illumination field.
The content of the invention
In view of the above problems, the purpose of this utility model is to provide a kind of key lighting device, and having solved keyboard can not obtain
The problem of obtaining Uniform Illumination.
The utility model provides a kind of key lighting device, and wherein described device includes pressing switch key, it is characterised in that：
The switch key has upper shell, key hole is offered on the upper shell, a keycap is arranged in the key hole, described
Keycap is a hollow structure, and inner surface one accommodation space of formation of supporting plate, the supporting plate and keycap, institute are provided with it
The height for stating accommodation space is H, and supported hole is provided with the supporting plate, and the switch key also has a flexible PCB,
One end of the flexible PCB is provided with LED, one end of the flexible PCB with LED is lived by the supported hole
It is arranged on dynamicly in accommodation space, the flexible PCB forms a fixed connection with the keycap；On described flexible PCB
Dome switch is additionally provided with, is coordinated with being arranged on fixed contact on flexible PCB and being formed；Flexible PCB bending makes its two sides
The two sides of support plate is separately positioned on, one projection is set in the underface of dome switch, for pressing dome switch.
By the technical scheme of the application, it will be arranged between lighting device below keycap, without the complicated knot such as light guide plate
The setting of structure with allowing for maintaining uniform illumination illuminated push button.
Brief description of the drawings
Fig. 1 is the structure of the key lighting device in embodiment
Embodiment
That part lighting device that present embodiment provides can be applied on the intelligent terminal with physical button, such as hand
Machine, PAD, in-vehicle navigation apparatus etc., key lighting device provided by the invention will be illustrated by taking mobile phone as an example below,
Other have the intelligent terminal of physical button similarly.
As shown in figure 1, switch key 1 has upper shell 2, offer key hole 3 on upper shell 2, a keycap 4 be arranged on by
In keyhole 3, keycap 4 is a hollow structure, and supporting plate 5 is provided with it, and the inner surface formation one of supporting plate and keycap is accommodating
Space, the height of accommodation space is H, and supported hole 5A is provided with supporting plate 5, and switch key also has a flexible PCB 8,
One end of flexible PCB is provided with LED7, with LED7 flexible PCB 8 one end be arranged on by supported hole 5A it is accommodating
In space, flexible PCB 8 bends the two sides for making its two sides be separately positioned on support plate 5, is formed and is set with what supporting plate 5 configured
Put, flexible PCB 8 forms a fixed connection with keycap 4.Dome switch 6 is additionally provided with flexible PCB 8, with being arranged on flexibility
Fixed contact 10, which is formed, on circuit board 8 coordinates.When pressing keycap 4, flexible PCB 8 can contact support plate 5, LED7 position
Adjustably it can be arranged in accommodation space.
In order to ensure that key lighting device can be pressed smoothly in pressing, can also be set in the underface of dome switch 6
A projection 19 is put, for pressing dome switch.When key lighting device moves downward, the projection 9 being arranged below can
Dome switch 6 is set to be contacted with fixed contact 10, while LED7 lights, and realizes key illumination.
Claims (2)
1. a kind of key lighting device, wherein described device include pressing switch key, it is characterised in that：The switch key has
Upper shell, key hole is offered on the upper shell, a keycap is arranged in the key hole, and the keycap is a hollow knot
Structure, inner surface one accommodation space of formation of supporting plate, the supporting plate and keycap, the height of the accommodation space are provided with it
Degree is H, supported hole is provided with the supporting plate, the switch key also has a flexible PCB, in the flexible circuit
One end of plate is provided with LED, and one end of the flexible PCB with LED is movably arranged as housing by the supported hole
In space, the flexible PCB forms a fixed connection with the keycap；Dome is additionally provided with described flexible PCB to open
Close, coordinate with being arranged on fixed contact on flexible PCB and being formed；Flexible PCB bending makes its two sides be separately positioned on supporting
The two sides of plate, one projection is set in the underface of dome switch, for pressing dome switch.
2. key lighting device as claimed in claim 1, it is characterised in that the keycap is transparent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721079577.1U CN207183131U (en) | 2017-08-23 | 2017-08-23 | Key lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721079577.1U CN207183131U (en) | 2017-08-23 | 2017-08-23 | Key lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207183131U true CN207183131U (en) | 2018-04-03 |
Family
ID=61739140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721079577.1U Expired - Fee Related CN207183131U (en) | 2017-08-23 | 2017-08-23 | Key lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207183131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346037A (en) * | 2018-04-06 | 2019-10-18 | 沈瑜正 | The eye-catching beans of electronics and float for fishing stratiform FPCB formula illuminance sensing device |
-
2017
- 2017-08-23 CN CN201721079577.1U patent/CN207183131U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346037A (en) * | 2018-04-06 | 2019-10-18 | 沈瑜正 | The eye-catching beans of electronics and float for fishing stratiform FPCB formula illuminance sensing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20180823 |