CN205620940U - Be applied to button device and keyboard device of keyboard - Google Patents
Be applied to button device and keyboard device of keyboard Download PDFInfo
- Publication number
- CN205620940U CN205620940U CN201620205706.6U CN201620205706U CN205620940U CN 205620940 U CN205620940 U CN 205620940U CN 201620205706 U CN201620205706 U CN 201620205706U CN 205620940 U CN205620940 U CN 205620940U
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- China
- Prior art keywords
- depressed part
- light receiver
- receiver end
- control circuit
- resistance
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Abstract
An embodiment of the utility model provides a be applied to button device and keyboard device of keyboard, the button device includes frame construction, frame construction has at least one and accepts the depressed part that the finger was pressed, arbitrary depressed part installation light emission end and light receiving terminal, light receiving terminal connection control circuit is pressed when the finger during the depressed part, the unable quilt of light of light emission end transmission the light receiving terminal is received, the light receiving terminal triggers control circuit changes control circuit's voltage output holds the voltage of exporting. The utility model discloses long service life, low cost, the operation of being convenient for.
Description
Technical field
The utility model relates to keyboard technique field, particularly relates to a kind of key device being applied to keyboard and key board unit.
Background technology
With the development of technology, the electronic product such as panel computer and mobile phone more and more enters the life of people.Due to the needs of product competition, the configuration design of electronic product is more and more frivolous small and exquisite.For the profile collocation with electronic product, the external connection keyboard supporting with it is also more and more thinner.
But, ultra-thin keyboard is limited by key journey, and thickness is difficult to decline, and button operation can cause the aging of button frequently, breaks down, and shortens the life-span of keyboard.
Therefore, how to extend the service life of ultra-thin keyboard, become prior art is needed badly and solve the technical problem that.
Content of the invention
In view of this, the utility model provides a kind of key device being applied to keyboard and key board unit, and its service life is long, with low cost, it is simple to operation.
The utility model provides a kind of key device being applied to keyboard, including frame structure, described frame structure has at least one depressed part accepting finger pressing, described arbitrary depressed part installs light transmitting terminal and light receiver end, described light receiver end connects control circuit, when finger presses described depressed part, the light that described light transmitting terminal is launched cannot be received by described light receiver end, described light receiver end triggers described control circuit, changes the voltage that the voltage output end of described control circuit is exported.
In the utility model one specific embodiment, described light transmitting terminal is arranged on a side of described depressed part, and described light receiver end is arranged on the relative side of described depressed part.
In the utility model one specific embodiment, described light transmitting terminal and light receiver end are photodiode.
In the utility model one specific embodiment, described depressed part outer cover one covers the spring-mounted shielding portion of external environment light.
In the utility model one specific embodiment, described control circuit includes at least one control electronic circuit, the logic high of described control electronic circuit connects one end of one first resistance, the other end of described first resistance connects one end of the light receiver end of a depressed part and the grid of a MOS switch triode respectively, the other end of described light receiver end is grounded the source electrode with described MOS switch triode respectively, the drain electrode of described MOS switch triode connects one end and the voltage output end of the second resistance respectively, the other end of described second resistance connects the other end of described first resistance and described logic high respectively.
The utility model also provides a kind of key board unit, including button and the shell on the back being combined with button, described button includes frame structure, described frame structure has at least one depressed part accepting finger pressing, described arbitrary depressed part installs light transmitting terminal and light receiver end, described light receiver end connects control circuit, when finger presses described depressed part, the light that described light transmitting terminal is launched cannot be received by described light receiver end, described light receiver end triggers described control circuit, changes the voltage that the voltage output end of described control circuit is exported.
In the utility model one specific embodiment, described light transmitting terminal is arranged on a side of described depressed part, and described light receiver end is arranged on the relative side of described depressed part.
In the utility model one specific embodiment, described light transmitting terminal and light receiver end are photodiode.
In the utility model one specific embodiment, described depressed part outer cover one covers the spring-mounted shielding portion of external environment light.
In the utility model one specific embodiment, described control circuit includes at least one control electronic circuit, the logic high of described control electronic circuit connects one end of one first resistance, the other end of described first resistance connects one end of the light receiver end of a depressed part and the grid of a MOS switch triode respectively, the other end of described light receiver end is grounded the source electrode with described MOS switch triode respectively, the drain electrode of described MOS switch triode connects one end and the voltage output end of the second resistance respectively, the other end of described second resistance connects the other end of described first resistance and described logic high respectively.
From above technical scheme, frame structure described in the utility model embodiment has at least one depressed part accepting finger pressing, and described arbitrary depressed part installs light transmitting terminal and light receiver end, and described light receiver end connects control circuit.When finger presses described depressed part, the light that described light transmitting terminal is launched cannot be received by described light receiver end, and described light receiver end triggers described control circuit, changes the voltage that the voltage output end of described control circuit is exported.Therefore, the utility model is realized the operating experience of similar pressing by pressing the geometry of depressed part.The utility model is long for service life, with low cost, it is simple to operation.
Brief description
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, the accompanying drawing of required use in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments described in the utility model, for those of ordinary skill in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of key device being applied to keyboard of the utility model；
Fig. 2 be the key device of the applied keyboard of the utility model schematic appearance；
Fig. 3 is the circuit diagram of the control circuit of a kind of key device being applied to keyboard of the utility model.
Detailed description of the invention
Frame structure described in the utility model embodiment has at least one depressed part accepting finger pressing, and described arbitrary depressed part installs light transmitting terminal and light receiver end, and described light receiver end connects control circuit.When finger presses described depressed part, the light that described light transmitting terminal is launched cannot be received by described light receiver end, and described light receiver end triggers described control circuit, changes the voltage that the voltage output end of described control circuit is exported.Therefore, the utility model is realized the operating experience of similar pressing by pressing the geometry of depressed part.The utility model is long for service life, with low cost, it is simple to operation.
Certainly, all advantages that arbitrary technical scheme of the present utility model must be not necessarily required to reach above simultaneously are implemented.
For the technical scheme making those skilled in the art be more fully understood that in the utility model, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, every other embodiment that those of ordinary skill in the art are obtained, all should belong to the scope of the utility model protection.
Further illustrate the utility model below in conjunction with the utility model accompanying drawing to implement.
Seeing Fig. 1 and Fig. 2, the utility model one specific embodiment provides a kind of key device being applied to keyboard, including frame structure 1.Described frame structure 1 has at least one depressed part 2 accepting finger pressing, and described depressed part 2 installs light transmitting terminal 3 and light receiver end 4, and described light receiver end 4 connects control circuit.
In the application one implements, described light transmitting terminal 3 is arranged on a side of described depressed part 2, and described light receiver end 4 is arranged on the relative side of described depressed part 2.
Specifically, described light transmitting terminal 3 may be installed the left-hand end of described depressed part 2, and described light receiver end 4 is arranged on the right-hand end of described depressed part 2.Or, described light transmitting terminal 3 may be installed the right-hand end of described depressed part 2, and described light receiver end 4 is arranged on the left-hand end of described depressed part 2.
Owing to photodiode is as light-sensitive element, it has different impedances under different light, and described light transmitting terminal 3 and light receiver end 4 are photodiode.
When finger presses described depressed part 2, the light that described light transmitting terminal 3 is launched cannot be received by described light receiver end 4, and described light receiver end 4 triggers described control circuit, changes the voltage that the voltage output end of described control circuit is exported.
Therefore, the utility model is realized the operating experience of similar pressing by pressing the geometry of depressed part.The utility model is long for service life, with low cost, it is simple to operation.
In order to avoid the impact on described light transmitting terminal 3 and light receiver end 4 for the ambient, described depressed part 2 outer cover one covers the spring-mounted shielding portion of external environment light.
See Fig. 3, described control circuit 5 includes at least one control electronic circuit 51, the logic high of described control electronic circuit connects one end of one first resistance R1, the other end of described first resistance R1 connects one end of the light receiver end 4 (photodiode) of a depressed part 2 and the grid of a MOS switch triode respectively, the other end of described light receiver end 4 (photodiode) is grounded the source electrode with described MOS switch triode respectively, the drain electrode of described MOS switch triode connects one end and the voltage output end of the second resistance R2 respectively, the other end of described second resistance R2 connects the other end of described first resistance R1 and described logic high respectively.
When finger does not presses described depressed part 2, the light that described light transmitting terminal 3 is launched is received by described light receiver end 4 (photodiode), described light receiver end 4 (photodiode) resistance is less, the voltage of described light receiver end 4 (photodiode) dividing potential drop is relatively low, described MOS switch triode ends, and described voltage output end obtains high voltage.
When finger presses described depressed part 2, the light that described light transmitting terminal 3 is launched cannot be received by described light receiver end 4 (photodiode), described light receiver end 4 (photodiode) resistance becomes huge, the voltage of described light receiver end 4 (photodiode) dividing potential drop is very high, described MOS switch triode ON, described voltage output end obtains low-voltage.
The utility model also provides a kind of key board unit, including button and the shell on the back being combined with button.
Seeing Fig. 1 and Fig. 2, described key device includes frame structure 1.Described frame structure 1 has at least one depressed part 2 accepting finger pressing, and described depressed part 2 installs light transmitting terminal 3 and light receiver end 4, and described light receiver end 4 connects control circuit.
In the application one implements, described light transmitting terminal 3 is arranged on a side of described depressed part 2, and described light receiver end 4 is arranged on the relative side of described depressed part 2.
Specifically, described light transmitting terminal 3 may be installed the left-hand end of described depressed part 2, and described light receiver end 4 is arranged on the right-hand end of described depressed part 2.Or, described light transmitting terminal 3 may be installed the right-hand end of described depressed part 2, and described light receiver end 4 is arranged on the left-hand end of described depressed part 2.
Owing to photodiode is as light-sensitive element, it has different impedances under different light, and described light transmitting terminal 3 and light receiver end 4 are photodiode.
When finger presses described depressed part 2, the light that described light transmitting terminal 3 is launched cannot be received by described light receiver end 4, and described light receiver end 4 triggers described control circuit, changes the voltage that the voltage output end of described control circuit is exported.
Therefore, the utility model is realized the operating experience of similar pressing by pressing the geometry of depressed part.The utility model is not necessarily to rubber key, and its service life is long, with low cost, it is simple to operation.
In order to avoid the impact on described light transmitting terminal 3 and light receiver end 4 for the ambient, described depressed part 2 outer cover one covers the spring-mounted shielding portion of external environment light.
See Fig. 3, described control circuit 5 includes at least one control electronic circuit 51, the logic high of described control electronic circuit connects one end of one first resistance R1, the other end of described first resistance R1 connects one end of the light receiver end 4 (photodiode) of a depressed part 2 and the grid of a MOS switch triode respectively, the other end of described light receiver end 4 (photodiode) is grounded the source electrode with described MOS switch triode respectively, the drain electrode of described MOS switch triode connects one end and the voltage output end of the second resistance R2 respectively, the other end of described second resistance R2 connects the other end of described first resistance R1 and described logic high respectively.
When finger does not presses described depressed part 2, the light that described light transmitting terminal 3 is launched is received by described light receiver end 4 (photodiode), described light receiver end 4 (photodiode) resistance is less, the voltage of described light receiver end 4 (photodiode) dividing potential drop is relatively low, described MOS switch triode ends, and described voltage output end obtains high voltage.
When finger presses described depressed part 2, the light that described light transmitting terminal 3 is launched cannot be received by described light receiver end 4 (photodiode), described light receiver end 4 (photodiode) resistance becomes huge, the voltage of described light receiver end 4 (photodiode) dividing potential drop is very high, described MOS switch triode ON, described voltage output end obtains low-voltage.
Although having been described for preferred embodiment of the present utility model, but those skilled in the art once know basic creative concept, then can make other change and modification to these embodiments.So, claims are intended to all changes and the modification being construed to include preferred embodiment and fall into the utility model scope.Obviously, those skilled in the art can carry out various change and modification without deviating from spirit and scope of the present utility model to the utility model.So, if these modifications of the present utility model and modification belong to the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these changes and modification.
Claims (10)
1. it is applied to a key device for keyboard, including frame structure, it is characterised in that described framework
Structure have at least one accept finger pressing depressed part, described arbitrary depressed part install light transmitting terminal and
Light receiver end, described light receiver end connects control circuit, when finger presses described depressed part, institute
The light stating the transmitting of light transmitting terminal cannot be received by described light receiver end, and described light receiver end touches
Send out control circuit described, change the voltage that the voltage output end of described control circuit is exported.
2. device according to claim 1, it is characterised in that described light transmitting terminal is arranged on institute
Stating a side of depressed part, described light receiver end is arranged on the relative side of described depressed part.
3. device according to claim 2, it is characterised in that described light transmitting terminal and light connect
Receiving end is photodiode.
4. device according to claim 3, it is characterised in that outside described depressed part outer cover one covers
The spring-mounted shielding portion of boundary's ambient light.
5. device according to claim 3, it is characterised in that described control circuit includes at least
Control electronic circuit, the logic high of described control electronic circuit connects one end of one first resistance, and described the
The other end of one resistance connects one end and MOS switch three pole of the light receiver end of a depressed part respectively
The grid of pipe, the other end of described light receiver end is grounded the source with described MOS switch triode respectively
Pole, the drain electrode of described MOS switch triode connects one end and the voltage output end of the second resistance respectively,
The other end of described second resistance connects the other end of described first resistance and described logic high respectively.
6. a key board unit, including button and the shell on the back being combined with button, it is characterised in that described
Button includes frame structure, and described frame structure has at least one depressed part accepting finger pressing, described
Arbitrary depressed part installs light transmitting terminal and light receiver end, and described light receiver end connects control circuit,
When finger presses described depressed part, the light that described light transmitting terminal is launched cannot be by described light receiver
End is received, and described light receiver end triggers described control circuit, and the voltage changing described control circuit is defeated
Go out the exported voltage of end.
7. device according to claim 6, it is characterised in that described light transmitting terminal is arranged on institute
Stating a side of depressed part, described light receiver end is arranged on the relative side of described depressed part.
8. device according to claim 7, it is characterised in that described light transmitting terminal and light connect
Receiving end is photodiode.
9. device according to claim 8, it is characterised in that outside described depressed part outer cover one covers
The spring-mounted shielding portion of boundary's ambient light.
10. device according to claim 7, it is characterised in that described control circuit includes at least
One control electronic circuit, the logic high of described control electronic circuit connects one end of one first resistance, described
The other end of the first resistance connects one end and a MOS switch three of the light receiver end of a depressed part respectively
The grid of pole pipe, the other end of described light receiver end is grounded and described MOS switch triode respectively
Source electrode, the drain electrode of described MOS switch triode connects one end and the voltage output end of the second resistance respectively,
The other end of described second resistance connects the other end of described first resistance and described logic high respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620205706.6U CN205620940U (en) | 2016-03-17 | 2016-03-17 | Be applied to button device and keyboard device of keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620205706.6U CN205620940U (en) | 2016-03-17 | 2016-03-17 | Be applied to button device and keyboard device of keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205620940U true CN205620940U (en) | 2016-10-05 |
Family
ID=57030950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620205706.6U Expired - Fee Related CN205620940U (en) | 2016-03-17 | 2016-03-17 | Be applied to button device and keyboard device of keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205620940U (en) |
-
2016
- 2016-03-17 CN CN201620205706.6U patent/CN205620940U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170721 Granted publication date: 20161005 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200721 Granted publication date: 20161005 |
|
| 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: 20161005 Termination date: 20170317 |