CN204130394U - A kind of keyboard switch - Google Patents
A kind of keyboard switch Download PDFInfo
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- CN204130394U CN204130394U CN201420557972.6U CN201420557972U CN204130394U CN 204130394 U CN204130394 U CN 204130394U CN 201420557972 U CN201420557972 U CN 201420557972U CN 204130394 U CN204130394 U CN 204130394U
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Abstract
The utility model discloses a kind of keyboard switch, comprise base, upper cover, button, back-moving spring, this upper cover is installed on base and forms an accommodation space, this back-moving spring is located in accommodation space, this button contacts at back-moving spring and slidably stretches out upper cover, be provided with one group of reflective light sensation components and parts in described accommodation space, these reflective light sensation components and parts are made up of light-emitting component and photo detector, and the button of correspondence is provided with light barrier; Under not pushing button and pushing button two states, can according to needing to set the reverberation that photo detector receives (maybe can not receive) light barrier, to export high/low level; By this, only need to adopt reflective luminescence unit and light receiving unit whether to turn on/off by inductive switch, completely not with key contact, simplicity of design, long service life.
Description
Technical field
The utility model relates to keyboard switch art.
Background technology
Existing mechanical switch, be pure mechanical structure, whether contact control circuit by sheet metal during depresses button whether to connect, loose contact is caused because Metal Contact sheet is easy to oxidation, therefore the mechanical switch life-span is all shorter, majority only has millions of times, as keyboard and other use the electronic product of mechanical switch to use a period of time after there is bad phenomenon, when showing as by mechanical switch button once-through operation equipment, respective action has more several times or no reaction, have a strong impact on user operation or cause operation inconvenience to user, reduce product quality and damage brand image.
For above-mentioned defect, known improvement means do quality-improving to Metal Contact sheet material and electrodeposited coating, and just improve the anti oxidation time of Metal Contact sheet on a small quantity, there is a certain amount of increase in the life-span but is no more than at most 1,000 ten thousand times.
Utility model content
In view of this, the utility model is for the disappearance of prior art existence, and its main purpose is to provide a kind of keyboard switch, whether it adopts reflective luminescence unit and light receiving unit inductive switch to turn on/off, to export high/low level, completely not with key contact, simplicity of design, long service life.
For achieving the above object, the utility model adopts following technical scheme:
A kind of keyboard switch, comprise base, upper cover, button, back-moving spring, this upper cover is installed on base and forms an accommodation space, this back-moving spring is located in accommodation space, this button contacts at back-moving spring and slidably stretches out upper cover, be provided with one group of reflective light sensation components and parts in described accommodation space, these reflective light sensation components and parts are made up of light-emitting component and photo detector, and the button of correspondence is provided with light barrier; When not pushing button, the light of this light-emitting component irradiates after light barrier, reflexes on photo detector and forms reflected light path; When a key is pressed, the light of this light-emitting component irradiates after light barrier, reflects photo detector and forms offset light road outward.
As a kind of preferred version, described light-emitting component adopts light-emitting diode or laser diode, and described photo detector adopts photodiode or phototriode.
As a kind of preferred version, described light-emitting component and photo detector are positioned at same level, and the light barrier of described button is positioned at directly over both this light-emitting component and photo detector center line.
As a kind of preferred version, described upper cover is provided with a LED, and the pin of this LED stretches to below base through base.
As a kind of preferred version, described upper cover and base buckle-type are assembled, and the both sides of this base are provided with back-off, and the both sides of the upper cover of correspondence are provided with button hole, and this button hole is fastened on back-off.
As a kind of preferred version, described keyboard switch is noiseless without feel switch, and this button is integral structure.
As a kind of preferred version, described keyboard switch noiselessly has feel switch, and this button is integral structure, be provided with contact position in button, in accommodation space, be provided with an arch shrapnel, this arch shrapnel is positioned at by the side of button, by during with resilience under this button, contact position conflict arch shrapnel.
As a kind of preferred version, described keyboard switch soundly has feel switch; This button has press section and the touch part of separate type, between this press section and touch part, there is high low head, contact position is set on touch part, one arch shrapnel is installed in accommodation space, this arch shrapnel is positioned at by the side of button, this press section compression reseting spring contacts with touch part is sound, and synchronously presses down the contact position conflict arch shrapnel of touch part.
A kind of keyboard switch, comprise base, upper cover, button, back-moving spring, this upper cover is installed on base and forms an accommodation space, this back-moving spring is located in accommodation space, this button contacts at back-moving spring and slidably stretches out upper cover, be provided with one group of reflective light sensation components and parts in described accommodation space, these reflective light sensation components and parts are made up of light-emitting component and photo detector, and the button of correspondence is provided with light barrier; When not pushing button, the light of this light-emitting component irradiates after light barrier, reflects photo detector and forms offset light road outward; When a key is pressed, the light of this light-emitting component irradiates after light barrier, reflexes on photo detector and forms reflected light path.
The utility model compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution, it mainly arranges reflective light sensation components and parts in keyboard switch, because these reflective light sensation components and parts are made up of light-emitting component and photo detector, coordinates the light barrier be located on button, thus when not pushing button, the light of this light-emitting component irradiates after light barrier, reflexes on photo detector and forms reflected light path, and photo detector exports high level; When a key is pressed, the light of this light-emitting component irradiates after light barrier, reflects photo detector and forms offset light road outward, and photo detector does not have illumination and output low level; By this, sensing element does not need contact button just can sense switch whether on/off completely, simplicity of design, long service life.
For more clearly setting forth architectural feature of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the assembling schematic perspective view of first embodiment (noiseless without feel switch) of the utility model, and the button in figure is not depressed;
Fig. 2 is the state diagram after depressing button in first embodiment of the utility model;
Fig. 3 is the exploded view of first embodiment of the utility model;
Fig. 4 is the cutaway view after cutting along LED of first embodiment of the utility model, and the button in figure is not depressed;
Fig. 5 is the state diagram after depressing button in Fig. 4;
Fig. 6 is the cutaway view after cutting along reflective light sensation components and parts of first embodiment of the utility model, and the button in figure is not depressed;
Fig. 7 is the state diagram after depressing button in Fig. 6;
Fig. 8 is the schematic diagram that in first embodiment of the utility model, reflective light sensation components and parts coordinate with button, and the button in figure is not depressed and presented reflected light path;
Fig. 9 presents skew light path after the button pressure of Fig. 8;
Figure 10 is the assembling schematic perspective view of second embodiment (noiseless without feel switch) of the utility model, and the button in figure is not depressed;
Figure 11 is the state diagram after depressing button in second embodiment of the utility model;
Figure 12 is the exploded view of second embodiment of the utility model;
Figure 13 is the cutaway view after cutting along LED of second embodiment of the utility model, and the button in figure is not depressed;
Figure 14 is the state diagram after depressing button in Figure 13;
Figure 15 is the assembling schematic perspective view of the 3rd embodiment (sound have feel switch) of the utility model, and the button in figure is not depressed;
Figure 16 is the vertical view of the 3rd embodiment of the utility model;
Figure 17 is the exploded view of the 3rd embodiment of the utility model;
Figure 18 is the cutaway view at A-A place in Figure 16;
Figure 19 is the cutaway view at B-B place in Figure 16;
Figure 20 is the index path before the button of the 4th embodiment of the utility model is not pressed;
Figure 21 is that the button of the 4th embodiment of the utility model presses rear index path.
Accompanying drawing identifier declaration:
10, base 11, back-off
20, upper cover 21, button hole
30, button 31, light barrier
32, position 33, press section is contacted
34, touch part 40, back-moving spring
50, reflective light sensation components and parts 51, light-emitting component
52, photo detector 53, reflected light path
54, light path 60, LED is offset
70, arch shrapnel.
Embodiment
Please refer to shown in Fig. 1 to Fig. 9, that show the concrete structure of first embodiment of the utility model, be the keyboard switch of a kind of " noiseless without feel ", its structure comprises base 10, upper cover 20, button 30, back-moving spring 40.This upper cover 20 is installed on base 10 and forms an accommodation space, and this back-moving spring 40 is located in accommodation space, and this button 30 is integral structures, and button 30 contacts at back-moving spring 40 and slidably stretches out upper cover 20.
Hold, be provided with one group of reflective light sensation components and parts 50 in described accommodation space, these reflective light sensation components and parts 50 are made up of light-emitting component 51 and photo detector 52, and the button 30 of correspondence is provided with light barrier 31; When not pushing button 30, back-moving spring 40 in the raw time, the light of this light-emitting component 51 irradiates after light barrier 31, reflexes on photo detector 52 and forms reflected light path 53; When pushing button 30, back-moving spring 40 is when being in compressive state, and the light of this light-emitting component 51 irradiates after light barrier 31, reflects that photo detector 52 is outer forms offset light road 54.
Wherein, described light-emitting component 51 adopts light-emitting diode or laser diode, and described photo detector 52 adopts photodiode or phototriode.Described light-emitting component 51 and photo detector 52 are positioned at same level, and the light barrier 31 of described button 30 is positioned at directly over both this light-emitting component 51 and photo detector 52 center line.Therefore, when button 30 is not depressed, by light-emitting component 51 to light barrier 31, then form reflected light path 53 by between light barrier 31 to photo detector 52, photo detector 52 is owing to having light to irradiate thus exporting high level; And after button 30 is depressed, then change the distance of throw light, the light of reflection is made to depart from outside photo detector 52, photo detector 52 is due to dull thread irradiation, export the change signal of telecommunication with time pressure and level difference of height, become output low level from high level, whether connect with this sense switch.
Upper cover 20 described in the present embodiment and base 10 buckle-type are assembled, and the both sides of this base 10 are provided with back-off 11, and the both sides of the upper cover 20 of correspondence are provided with button hole 21, and this button hole 21 is fastened on back-off 11.In addition, described upper cover 20 is provided with a LED 60, and the pin of this LED 60 stretches to below base 10 through base 10.
Please refer to shown in Figure 10 to Figure 14, that show the concrete structure of second embodiment of the utility model, it is the keyboard switch of a kind of " noiseless have feel ", this type of switch is substantially identical with " noiseless without the feel " construction of switch described in the first embodiment, difference is: described button 30 is integral structures, contact position 32 is provided with in button 30, one arch shrapnel 70 is installed in accommodation space, this arch shrapnel 70 is positioned at by the side of button 30, when this button is pressed with resilience for 30 times, conflict arch shrapnel 70 in contact position 32, thus when making pressing keys 30, there is feel.
Please refer to shown in Figure 15 to Figure 19, that show the concrete structure of the 3rd embodiment of the utility model, it is the keyboard switch of a kind of " sound have feel ", this type of switch is substantially identical with " noiseless without the feel " construction of switch described in the first embodiment, difference is: described button 30 has press section 33 and the touch part 34 of separate type, between this press section 33 and touch part 34, there is high low head, contact position 32 is set on touch part 34, one arch shrapnel 70 is installed in accommodation space, this arch shrapnel 70 is positioned at by the side of button 30, this press section 33 compression reseting spring 40 contacts with touch part 34 is sound, the arch shrapnel 70 and conflict in the contact position 32 synchronously pressing down touch part 34, thus press press section 33 when contacting with touch part 34, the sound of " rattling away " can be sent, and arch shrapnel 70 provides finger allodynia when pressing.
Please refer to shown in Figure 20 to Figure 21, that show the concrete structure of the 4th embodiment of the utility model, this 4th embodiment is substantially identical with the design of the first embodiment, and difference is to have converted its control mode.In the present embodiment, see Figure 20, when not pushing button, the light of this light-emitting component irradiates after light barrier, reflects photo detector and forms offset light road outward, now photo detector output low level; See Figure 21, when a key is pressed, the light of this light-emitting component irradiates after light barrier, reflexes on photo detector and forms reflected light path, and now photo detector exports high level.Certainly, if button continue under by until when light barrier is affixed on light-emitting component and photo detector surperficial, can be not enough due to reflective distance, make photo detector receive reverberation, thus output low level.
In sum, design focal point of the present utility model is, it mainly arranges reflective light sensation components and parts 50 in keyboard switch, because these reflective light sensation components and parts 50 are made up of light-emitting component 51 and photo detector 52, coordinate the light barrier 31 that is located on button 30, thus when do not push button 30 time, the light of this light-emitting component 51 irradiates after light barrier 31, reflex on photo detector 52 and form reflected light path 53, photo detector 52 exports high level; When push button 30 time, the light of this light-emitting component 51 irradiates after light barrier 31, reflects that photo detector 52 is outer forms offset light road 54, and photo detector 52 does not have illumination and output low level; By this, sensing element does not need contact button 30 just can sense switch whether on/off completely, simplicity of design, long service life.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, therefore every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a keyboard switch, comprise base, upper cover, button, back-moving spring, this upper cover is installed on base and forms an accommodation space, this back-moving spring is located in accommodation space, this button contacts at back-moving spring and slidably stretches out upper cover, it is characterized in that: be provided with one group of reflective light sensation components and parts in described accommodation space, these reflective light sensation components and parts are made up of light-emitting component and photo detector, and the button of correspondence is provided with light barrier; When not pushing button, the light of this light-emitting component irradiates after light barrier, reflexes on photo detector and forms reflected light path; When a key is pressed, the light of this light-emitting component irradiates after light barrier, reflects photo detector and forms offset light road outward.
2. a kind of keyboard switch according to claim 1, is characterized in that: described light-emitting component adopts light-emitting diode or laser diode, and described photo detector adopts photodiode or phototriode.
3. a kind of keyboard switch according to claim 1, is characterized in that: described light-emitting component and photo detector are positioned at same level, and the light barrier of described button is positioned at directly over both this light-emitting component and photo detector center line.
4. a kind of keyboard switch according to claim 1, is characterized in that: described upper cover is provided with a LED, and the pin of this LED stretches to below base through base.
5. a kind of keyboard switch according to claim 1, is characterized in that: described upper cover and base buckle-type are assembled, and the both sides of this base are provided with back-off, and the both sides of the upper cover of correspondence are provided with button hole, and this button hole is fastened on back-off.
6. a kind of keyboard switch according to claim 1, is characterized in that: described keyboard switch is noiseless without feel switch, and this button is integral structure.
7. a kind of keyboard switch according to claim 1, it is characterized in that: described keyboard switch noiselessly has feel switch, this button is integral structure, contact position is provided with in button, one arch shrapnel is installed in accommodation space, this arch shrapnel is positioned at by the side of button, by during with resilience under this button, and contact position conflict arch shrapnel.
8. a kind of keyboard switch according to claim 1, is characterized in that: described keyboard switch soundly has feel switch; This button has press section and the touch part of separate type, between this press section and touch part, there is high low head, contact position is set on touch part, one arch shrapnel is installed in accommodation space, this arch shrapnel is positioned at by the side of button, this press section compression reseting spring contacts with touch part is sound, and synchronously presses down the contact position conflict arch shrapnel of touch part.
9. a keyboard switch, comprise base, upper cover, button, back-moving spring, this upper cover is installed on base and forms an accommodation space, this back-moving spring is located in accommodation space, this button contacts at back-moving spring and slidably stretches out upper cover, it is characterized in that: be provided with one group of reflective light sensation components and parts in described accommodation space, these reflective light sensation components and parts are made up of light-emitting component and photo detector, and the button of correspondence is provided with light barrier; When not pushing button, the light of this light-emitting component irradiates after light barrier, reflects photo detector and forms offset light road outward; When a key is pressed, the light of this light-emitting component irradiates after light barrier, reflexes on photo detector and forms reflected light path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557972.6U CN204130394U (en) | 2014-09-26 | 2014-09-26 | A kind of keyboard switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557972.6U CN204130394U (en) | 2014-09-26 | 2014-09-26 | A kind of keyboard switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204130394U true CN204130394U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420557972.6U Active CN204130394U (en) | 2014-09-26 | 2014-09-26 | A kind of keyboard switch |
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Cited By (14)
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|---|---|---|---|---|
| CN104966636A (en) * | 2015-06-16 | 2015-10-07 | 郝小妮 | Split-type light-guide key switch and mechanical keyboard |
| CN105097342A (en) * | 2015-08-11 | 2015-11-25 | 东莞市长资实业有限公司 | Photoelectric control integrated input device switch module capable of generating twice touch click sounds |
| CN105374599A (en) * | 2015-08-31 | 2016-03-02 | 东莞市长资实业有限公司 | Leveraged input device micro switch key |
| CN105375913A (en) * | 2015-11-24 | 2016-03-02 | 东莞市高特电子有限公司 | Reflection-type opto-mechanical keyboard switch |
| CN105429620A (en) * | 2015-12-18 | 2016-03-23 | 东莞市高特电子有限公司 | Modular photoelectric switch keyboard button |
| CN105450208A (en) * | 2015-02-27 | 2016-03-30 | 东莞市长资实业有限公司 | Photoelectric-integrated mechanical shaft keyboard switch module |
| WO2017028702A1 (en) * | 2015-08-19 | 2017-02-23 | 东莞市凯华电子有限公司 | Keyboard switch |
| CN107180718A (en) * | 2017-07-11 | 2017-09-19 | 东莞市高特电子有限公司 | A kind of heavy template die group optoelectronic switch and keyboard |
| CN110989778A (en) * | 2019-12-13 | 2020-04-10 | 义乌辛璟电子商务有限公司 | Notebook computer key convenient to remove dust and radiate based on photoresistor principle |
| US10637470B2 (en) | 2018-01-05 | 2020-04-28 | Darfon Electronics Corp. | Optical keyswitch |
| US11018667B2 (en) | 2018-01-05 | 2021-05-25 | Darfon Electronics Corp. | Optical keyswitch |
| US11721500B2 (en) | 2021-04-07 | 2023-08-08 | Darfon Electronics Corp. | Keyswitch assembly and support mechanism thereof |
| US11735379B2 (en) | 2021-04-07 | 2023-08-22 | Darfon Electronics Corp. | Keyswitch assembly |
| US11770123B2 (en) | 2018-01-05 | 2023-09-26 | Darfon Electronics Corp. | Optical keyswitch comprising a keycap having a light transmission area and a keycap projection area projected on a circuit board |
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2014
- 2014-09-26 CN CN201420557972.6U patent/CN204130394U/en active Active
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| TWI618105B (en) * | 2015-02-27 | 2018-03-11 | Photoelectric integrated mechanical axis keyboard switch module | |
| CN105450208B (en) * | 2015-02-27 | 2019-03-26 | 东莞市长资实业有限公司 | A kind of photoelectric integral type mechanical axis keyboard switch mould group |
| CN105450208A (en) * | 2015-02-27 | 2016-03-30 | 东莞市长资实业有限公司 | Photoelectric-integrated mechanical shaft keyboard switch module |
| CN104966636A (en) * | 2015-06-16 | 2015-10-07 | 郝小妮 | Split-type light-guide key switch and mechanical keyboard |
| CN105097342A (en) * | 2015-08-11 | 2015-11-25 | 东莞市长资实业有限公司 | Photoelectric control integrated input device switch module capable of generating twice touch click sounds |
| JP2018525788A (en) * | 2015-08-19 | 2018-09-06 | 東莞市凱華電子有限公司Ｄｏｎｇｇｕａｎ Ｋａｉｈｕａ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．， Ｌｔｄ | Keyboard switch |
| WO2017028702A1 (en) * | 2015-08-19 | 2017-02-23 | 东莞市凯华电子有限公司 | Keyboard switch |
| CN105374599B (en) * | 2015-08-31 | 2019-02-01 | 东莞市长资实业有限公司 | A kind of lever-type input equipment microswitch key |
| CN105374599A (en) * | 2015-08-31 | 2016-03-02 | 东莞市长资实业有限公司 | Leveraged input device micro switch key |
| CN105375913A (en) * | 2015-11-24 | 2016-03-02 | 东莞市高特电子有限公司 | Reflection-type opto-mechanical keyboard switch |
| CN105429620A (en) * | 2015-12-18 | 2016-03-23 | 东莞市高特电子有限公司 | Modular photoelectric switch keyboard button |
| CN107180718A (en) * | 2017-07-11 | 2017-09-19 | 东莞市高特电子有限公司 | A kind of heavy template die group optoelectronic switch and keyboard |
| US11770123B2 (en) | 2018-01-05 | 2023-09-26 | Darfon Electronics Corp. | Optical keyswitch comprising a keycap having a light transmission area and a keycap projection area projected on a circuit board |
| US11855624B2 (en) | 2018-01-05 | 2023-12-26 | Darfon Electronics Corp. | Optical switch comprising a movable member to rotate in response to movement of a support mechanism to change the intensity of received optical signal |
| US10637470B2 (en) | 2018-01-05 | 2020-04-28 | Darfon Electronics Corp. | Optical keyswitch |
| US11018667B2 (en) | 2018-01-05 | 2021-05-25 | Darfon Electronics Corp. | Optical keyswitch |
| US11108393B2 (en) | 2018-01-05 | 2021-08-31 | Darfon Electronics Corp. | Optical keyswitch triggered by support mechanism having at least one rotatable frame enable a protrusion to move along with a key cap |
| CN110989778B (en) * | 2019-12-13 | 2021-04-02 | 韩春燕 | Notebook computer key convenient to remove dust and radiate based on photoresistor principle |
| CN110989778A (en) * | 2019-12-13 | 2020-04-10 | 义乌辛璟电子商务有限公司 | Notebook computer key convenient to remove dust and radiate based on photoresistor principle |
| US11735379B2 (en) | 2021-04-07 | 2023-08-22 | Darfon Electronics Corp. | Keyswitch assembly |
| US11721500B2 (en) | 2021-04-07 | 2023-08-08 | Darfon Electronics Corp. | Keyswitch assembly and support mechanism thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |