CN111599621A - Novel noise-free clean mechanical optical axis key with double springs - Google Patents
Novel noise-free clean mechanical optical axis key with double springs Download PDFInfo
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- CN111599621A CN111599621A CN202010317529.1A CN202010317529A CN111599621A CN 111599621 A CN111599621 A CN 111599621A CN 202010317529 A CN202010317529 A CN 202010317529A CN 111599621 A CN111599621 A CN 111599621A
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- guide
- optical axis
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- upper cover
- spring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
- H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
- H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
- H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/86—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the casing, e.g. sealed casings or casings reducible in size
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
- H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard
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- Projection Apparatus (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
A novel double-spring noise-free clean mechanical optical axis key is characterized in that in the use process of an original mechanical optical axis sounding key, due to the fact that the appearance of noise can be ignored in the process of guaranteeing normal sounding on the structure, in order to better match with an original design scheme, the technical effect of a product is greatly improved through the existing improvement, meanwhile, the dust removal effect is not considered in the original design scheme, and therefore the design of adding a flow guide hole is considered in the design of a base; meanwhile, small looseness may occur in the matching process of the upper cover and the base, and a positioning device is matched with the upper cover on the base guide rail design to enhance the stability of the upper cover and the base.
Description
Technical Field
This technique belongs to the computer hardware field, especially relates to a novel two spring noise free clean type mechanical optical axis button.
Background
The optical axis key is a novel key in recent years, and is characterized in that a brand-new optical sensing identification technology is added on the basis of the traditional mechanical key shaft technology, and the traditional contact plectrum is replaced by an optical sensing component, so that some problems of the traditional contact type mechanical switch are improved. The optical axis technology adopts infrared optical induction, no contact point is worn when the optical axis technology is conducted, meanwhile, the optical mechanical signal is optical pulse, the output waveform is clean and zero noise, the problem of contact jitter is completely eliminated, and overspeed response can be realized within 1ms when a key is clicked.
The prior art patent numbers are: 201720816304.4 patent names: the utility model provides a novel dustproof and waterproof optical axis button, its method of adoption is through leading core upper structure portion and taking place the structure that the torsional spring was mutually supported and is carried out the sound production, and in long-term the use, takes place the torsional spring and can drop consequently influence the sound production effect of button, and the manufacturing process of torsional spring is complicated, and the technological accuracy requires highly, consequently should improve prior art.
Meanwhile, the company has two existing technical contents, such as: 201920707849.0, a double-spring type long-life optical axis key and 201921821268.6, a novel double-spring mechanical optical axis key; in the use of customers, the product structure of the existing product is further improved to achieve better technical effect.
Disclosure of Invention
Aiming at the defects of the existing optical axis key, the technical problem is to provide a novel double-spring noise-free clean mechanical optical axis key, in the use process of the mechanical optical axis sounding key designed in the prior art, as the occurrence of some noise can be possibly ignored in the process of guaranteeing normal sounding in the structure, in order to better match the original design scheme, the prior improvement greatly improves the technical effect of the product, and meanwhile, the dust removal effect is not considered in the scheme of the original design, so the design of adding a flow guide hole is considered in the design of a base; meanwhile, small looseness may occur in the matching process of the upper cover and the base, and a positioning device is matched with the upper cover on the base guide rail design to enhance the stability of the upper cover and the base. Meanwhile, the design is provided with the self-sounding elastic device which is matched with the structure and gives out pleasant sound, and the product of the technology has the characteristics of simplified process, simple structure and wide application range.
A novel double-spring noise-free clean mechanical optical axis key comprises an upper cover, a guide core, a compression sounding spring, a firing pin, a return spring and a base; the method is characterized in that: the center of the upper cover is provided with a channel hole which accords with the outline of the guide core, the guide core is inserted into the channel hole of the upper cover from the lower part, a round shaft is arranged at the lower part inside the guide core, one end of a compression sounding spring is sleeved into the round shaft, the other end of the compression sounding spring is connected with a firing pin, and the lower end of the guide core is sleeved with a return spring; the bottom of the reset spring is limited by the internal structure of the base, the center of the base is provided with a shaft hole, the lower part of the firing pin is inserted into the shaft hole of the base, part of the structure of the firing pin extends out of the bottom of the base, the upper cover and the base are mutually buckled to form an optical axis key, the optical axis key is installed on a keyboard substrate, structural redundancy is arranged inside the key base and used for installing an optical axis sensor, a guide core moves up and down by compressing the sounding spring, the firing pin and the reset spring under the action of pressure, and meanwhile, the firing pin structure moves up and down instantly to knock the guide core; the guide core and the upper cover are provided with a silencing structure; an internal positioning structure is arranged between the upper cover and the base; a flow guide structure is arranged in the base. .
Preferably, the silencing structure arranged on the guide core and the upper cover is that guide blocks are arranged on two side edges of the guide core, and a guide rail is arranged on the inner side of the upper cover, so that the guide blocks move up and down in the guide rail; the upper end of the guide block is provided with an arc structure; the arc-shaped structure is far away from the edge of the inner side structure of the upper cover, and the function of the arc-shaped structure is to avoid noise generated by mutual collision with the edge of the inner side structure of the upper cover in the rebound process of the guide core; the inner positioning structure arranged between the upper cover and the base is characterized in that a positioning column is arranged in the base, a positioning hole is arranged in the middle of the guide rail of the upper cover, and the upper end of the positioning column in the base is matched with the positioning hole in the upper cover so as to realize the inner positioning structure; a track groove structure is arranged in the middle of the guide block of the guide core and is matched with the outer edge of the positioning column in the base, so that the stable sliding and mutual limiting effects are realized; the lower end of the base is provided with a flow guide hole, and the flow guide hole is used for discharging dust and water entering the key out of the key.
Preferably, guide grooves are formed in the other two side edges of the guide core, a guide column is arranged on the firing pin, the guide column arranged on the firing pin is arranged in the guide grooves during installation, and the guide column moves along the direction of the guide grooves of the guide core during movement of the firing pin; the lower end of the guide column of the firing pin is also provided with one or more limiting clamping points; the shaft hole is provided with two symmetrical descending chutes, the upper edge of the shaft hole structure is provided with two first gaps and two second gaps, the first gaps are matched with the structure of the limiting clamping point on the firing pin, and the second gaps are matched with the structure of the guide post on the firing pin; and the limiting clamping points on the guide core are matched with the descending sliding grooves on the shaft hole.
Preferably, a round shaft is arranged below the inner part of the guide core, one end of the compression sounding spring is sleeved in the round shaft, a plurality of raised top edges are arranged on the periphery of the round shaft, and one end of the return spring is limited by the top edges.
Preferably, the upper part of the guide core is provided with a structural position for installing a keyboard cap.
Preferably, the optical axis key is installed on the keyboard substrate, the optical axis sensor is installed in the optical axis key, a structural through hole is formed in the lower end of the striker, the structural through hole is a conduction structure of the optical axis sensor, and the striker moves up and down in the optical axis key and can control the opening or closing of the optical axis sensor.
Drawings
FIG. 1 is a schematic view 1 of a product provided by the present invention;
FIG. 2 is a schematic view 2 of a product provided by the present invention;
FIG. 3 is a schematic view 3 of a product provided by the present invention;
FIG. 4 is a schematic view 4 of a product provided by the present invention;
FIG. 5 is a schematic illustration 5 of a product provided by the present invention;
FIG. 6 is a schematic illustration 6 of a product provided by the present invention;
FIG. 7 is a schematic illustration 7 of a product provided by the present invention;
FIG. 8 is a schematic illustration 8 of a product provided by the present invention;
FIG. 9 is a schematic view of a product provided by the present invention 9;
FIG. 10 is a schematic view 10 of a product provided by the present invention;
FIG. 11 is a schematic view 11 of a product provided by the present invention;
FIG. 12 is a schematic view of the product provided by the present invention in combination state 1;
FIG. 13 is a schematic view of the product combination state provided by the present invention 2;
FIG. 14 is a schematic view of the product provided by the present invention in an assembled state 3;
fig. 15 is a schematic view 4 of the product combination state provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 15, a novel dual-spring mechanical optical axis key comprises an upper cover 26, a guide core 25, a compression sound spring 24, a striker 23, a return spring 22, and a base 21; the method is characterized in that: the center of the upper cover 26 is provided with a channel hole which is in accordance with the outline of the guide core, the guide core 25 is inserted into the channel hole of the upper cover from the lower part, a round shaft 252 is arranged at the lower part of the inner part of the guide core 25, one end of a compression sound spring 24 is sleeved into the round shaft 252, the other end of the compression sound spring 24 is connected with a firing pin 23, and the lower end of the guide core 25 is sleeved with a return spring 22; the bottom of the reset spring 22 is limited by the internal structure of the base 21, the center of the base 21 is provided with a shaft hole 41, the lower part of the firing pin 23 is inserted into the shaft hole 41 of the base 21, part of the structure of the firing pin 23 extends out of the bottom of the base 21, the upper cover 26 and the base 21 are mutually buckled to form an optical axis key, the optical axis key is installed on a keyboard substrate, the key base is internally provided with structural redundancy and is used for installing an optical axis sensor, the guide core 25 moves up and down by compressing the sounding spring 24, the firing pin 23 and the reset spring 22 under the action of pressure, meanwhile, the firing pin 23 moves up and down instantly to knock the structural part of the guide core 25 to make specific sound, and the guide core; an internal positioning structure is arranged between the upper cover 26 and the base 21; a flow guide structure is arranged in the base 21.
Preferably, the silencing structure of the guide core 25 and the upper cover 26 is that two side edges of the guide core 25 are provided with guide blocks 255, and the inner side of the upper cover 26 is provided with a guide rail 265, so that the guide blocks 255 can move up and down in the guide rail 265; the upper end of the guide block 255 is provided with an arc-shaped structure 2551; the arc-shaped structure 2551 is far away from the inner side structure edge 2651 of the upper cover, and the function of the arc-shaped structure is to avoid noise generated by mutual collision with the inner side structure edge 2651 of the upper cover in the rebound process of the guide core 25; the internal positioning structure arranged between the upper cover 26 and the base 21 is that a positioning column 216 is arranged in the base 21, a positioning hole 266 is arranged in the middle of a guide rail 265 of the upper cover 26, and the upper end of the positioning column 216 in the base 21 is matched with the positioning hole 266 in the upper cover 26 to realize the internal positioning structure; a track groove 2552 structure is arranged in the middle of the guide block 255 of the guide core 25 and is matched with the outer edge of the positioning column 216 in the base 21, so that the stable sliding and mutual limiting effects are realized; the lower end of the base is provided with a flow guide hole, and the flow guide hole is used for discharging dust and water entering the key out of the key.
Preferably, guide grooves 32 are formed on the other two sides of the guide core 25, a guide post 33 is provided on the striker 23, the guide post 33 provided on the striker 23 is installed in the guide groove 32 when the striker 23 is installed, and the guide post 33 moves along the guide groove 32 of the guide core 25 when the striker 23 moves. Guide grooves 32 are formed in the other two side edges of the guide core 25, guide posts 33 are arranged on the firing pin 23, the guide posts 33 arranged on the firing pin 23 are arranged in the guide grooves 32 during installation, and the guide posts 33 move along the direction of the guide grooves 32 of the guide core 25 when the firing pin 23 moves; the lower end of the guide column 33 of the firing pin 23 is also provided with one or more limit clamping points 35; two symmetrical descending chutes 42 are formed in the shaft hole 41, two first notches 411 and two second notches 412 are formed in the upper edge of the structure of the shaft hole 41, the first notches 411 are matched with the structure of the limiting clamping point 35 on the striker, and the second notches 412 are matched with the structure of the guide post 33 on the striker; and the limit stop points 35 on the firing pin are matched with the structures of the descending chutes 42 on the axial hole 41.
Preferably, a round shaft 252 is arranged below the inner part of the guide core 25, one end of the compression sound spring 24 is sleeved in the round shaft 252, a plurality of raised top edges 251 are arranged on the periphery of the round shaft 251, and one end of the return spring 22 is limited by the top edges 251.
Preferably, one or more limit clamping points 35 are arranged at the lower end of the guide column 33 of the firing pin 23, one or more structure sliding grooves 42 are arranged at the edge of the shaft hole structure 41 of the base 21, and the structure sliding grooves 42 correspond to the limit clamping points 35 arranged on the firing pin 23 one by one and are matched with each other. When the key is pressed down, the guide core 25 moves downwards, the striker 23 moves downwards under the action of the pressure sounding spring 24, the guide column 33 on the striker 23 moves along the edge of the guide groove 32 in the guide core 25, so that the striker 23 rotates, the limit clamping point 35 at the bottom of the striker 23 rotates and moves along the direction of the shaft hole structure 41 of the base 21, when the upper limit clamping point 35 on the striker 23 moves to the position of the structure sliding groove 42 of the shaft hole of the base, the striker 23 rapidly moves downwards under the action of the pressure sounding spring 24 and instantly pops into the structure sliding groove 42 of the base 21, and the guide column 33 on the striker 23 strikes the lower inclined surface of the guide groove 32 of the guide core 25 to generate crisp 'click and click' sound.
Preferably, the upper part of the guide core 25 is provided with a structure position 31 for installing a keyboard cap.
Preferably, the optical axis key is installed on the keyboard substrate, an optical axis sensor is installed in the optical axis key, a structural through hole 34 is formed in the lower end of the striker 23, the structural through hole 34 is an optical axis sensor conduction structure, and the striker 23 moves up and down in the optical axis key and can control the opening or closing of the optical axis sensor.
The operation flow of the technology is as follows:
as shown in fig. 12-13, when the guide core 25 is pressed by the operating force OF to move downward by a pre-stroke OP1, the striker 23 descends by an initial striker stroke C3 under the action OF the compressed sound spring 24, and the striker control limit 35 contacts the base limit table 41, where OP1 is equal to C3. When the guide core 25 is continuously pressed to move downwards for a pre-stroke two OP2, the striker 23 rotates under the action of the inclined surface of the guide groove 32 arranged on the guide core 25 and reaches the position of the base slideway 42, instantly bounces into the base slideway 42 and impacts the lower inclined surface of the guide groove 32 to send out crisp 'click and click' sounds under the action of the pressure of the compressed sound-producing spring 24, and meanwhile, the light-cutting part 34 of the striker descends into the base opposite light groove 45, so that the infrared signal emitted by the infrared emitter 13 arranged on the keyboard PCB 11 is cut off, and meanwhile, the infrared emitter 15 cannot receive the infrared signal emitted by the infrared emitter 13, so that the switch finishes sound production and signal triggering, and when the guide core 25 is continuously pressed to move downwards for a pre-stroke three OP3, the guide core 25 cannot be continuously pressed again, and the switch finishes full-stroke TTP; after the pressing is abandoned, the striker 23 and the guide core 25 are reset to the initial position under the action of the reset function of the reset pressure spring 22, and the switch completes a motion cycle of sounding, signal triggering and keyboard signal input.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A novel double-spring noise-free clean mechanical optical axis key comprises an upper cover, a guide core, a compression sounding spring, a firing pin, a return spring and a base; the method is characterized in that: the center of the upper cover is provided with a channel hole which accords with the outline of the guide core, the guide core is inserted into the channel hole of the upper cover from the lower part, a round shaft is arranged at the lower part inside the guide core, one end of a compression sounding spring is sleeved into the round shaft, the other end of the compression sounding spring is connected with a firing pin, and the lower end of the guide core is sleeved with a return spring; the bottom of the reset spring is limited by the internal structure of the base, the center of the base is provided with a shaft hole, and the lower part of the firing pin is inserted into the shaft hole of the base; the structure of the striker part extends out of the bottom of the base, the upper cover and the base are buckled with each other to form an optical axis key, the optical axis key is installed on the keyboard substrate, a structure vacancy is formed in the key base and used for installing an optical axis sensor, the guide core moves up and down by compressing a sounding spring, the striker and a reset spring under the action of pressure, and meanwhile, the striker structure moves up and down instantly to knock the structure part of the guide core to make a specific sound; the guide core and the upper cover are provided with a silencing structure; an internal positioning structure is arranged between the upper cover and the base; a flow guide structure is arranged in the base.
2. The novel double-spring noise-free clean mechanical optical axis key as claimed in claim 1, wherein: the silencing structure arranged between the guide core and the upper cover is characterized in that guide blocks are arranged on two side edges of the guide core, and a guide rail is arranged on the inner side of the upper cover, so that the guide blocks move up and down in the guide rail; the upper end of the guide block is provided with an arc structure; the arc-shaped structure is far away from the edge of the inner side structure of the upper cover, and the function of the arc-shaped structure is to avoid noise generated by mutual collision with the edge of the inner side structure of the upper cover in the rebound process of the guide core; the inner positioning structure arranged between the upper cover and the base is characterized in that a positioning column is arranged in the base, a positioning hole is arranged in the middle of the guide rail of the upper cover, and the upper end of the positioning column in the base is matched with the positioning hole in the upper cover so as to realize the inner positioning structure; a track groove structure is arranged in the middle of the guide block of the guide core and is matched with the outer edge of the positioning column in the base, so that the stable sliding and mutual limiting effects are realized; the lower end of the base is provided with a flow guide hole, and the flow guide hole is used for discharging dust and water entering the key out of the key.
3. The novel double-spring noise-free clean mechanical optical axis key as claimed in claim 1, wherein: guide grooves are formed in the other two side edges of the guide core, guide posts are arranged on the firing pins, the guide posts arranged on the firing pins are arranged in the guide grooves during installation, and the guide posts move along the direction of the guide grooves of the guide core when the firing pins move; the lower end of the guide column of the firing pin is also provided with one or more limiting clamping points; the shaft hole is provided with two symmetrical descending chutes, the upper edge of the shaft hole structure is provided with two first gaps and two second gaps, the first gaps are matched with the structure of the limiting clamping point on the firing pin, and the second gaps are matched with the structure of the guide post on the firing pin; and the limiting clamping points on the guide core are matched with the descending sliding grooves on the shaft hole.
4. The novel double-spring noise-free clean mechanical optical axis key as claimed in claim 1, wherein: a round shaft is arranged below the inner part of the guide core, one end of a compression sounding spring is sleeved into the round shaft, a plurality of raised top edges are arranged on the periphery of the round shaft, and one end of a return spring is limited by the top edges.
5. The novel double-spring noise-free clean mechanical optical axis key as claimed in claim 1, wherein: the upper part of the guide core is provided with a structural position for installing a keyboard cap.
6. The novel double-spring noise-free clean mechanical optical axis key as claimed in claim 1, wherein: the keyboard comprises a keyboard substrate, a keyboard key, a striker, an optical axis sensor, an optical axis button, a structure through hole and a control unit, wherein the optical axis button is installed on the keyboard substrate, the optical axis sensor is installed in the optical axis button, the lower end of the striker is provided with the structure through hole, the structure through hole is of an optical axis sensor conduction structure, and the striker moves up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317529.1A CN111599621B (en) | 2020-04-21 | 2020-04-21 | Noise-free clean mechanical optical axis key with double springs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317529.1A CN111599621B (en) | 2020-04-21 | 2020-04-21 | Noise-free clean mechanical optical axis key with double springs |
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| Publication Number | Publication Date |
|---|---|
| CN111599621A true CN111599621A (en) | 2020-08-28 |
| CN111599621B CN111599621B (en) | 2022-11-11 |
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| CN202010317529.1A Active CN111599621B (en) | 2020-04-21 | 2020-04-21 | Noise-free clean mechanical optical axis key with double springs |
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2020
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|---|---|---|---|---|
| US4931794A (en) * | 1987-01-14 | 1990-06-05 | Telefunken Electronic Gmbh | Optoelectronic keyboard |
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| CN105914075A (en) * | 2016-06-24 | 2016-08-31 | 深圳市煌兆铭科技有限公司 | Photoelectric keyboard switch and mechanical keyboard |
| CN106847595A (en) * | 2017-03-25 | 2017-06-13 | 东莞市集贤电子有限公司 | The vocal structure of keyboard switch |
| WO2019056827A1 (en) * | 2017-07-06 | 2019-03-28 | 东莞市凯华电子有限公司 | Pushbutton switch having good hand feel |
| CN107680855A (en) * | 2017-09-01 | 2018-02-09 | 东莞市凯华电子有限公司 | A kind of luminous key switch in centre |
| CN209029274U (en) * | 2018-08-27 | 2019-06-25 | 东莞市禾金电子科技有限公司 | A kind of novel dual spring mechanical optical axis key |
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| CN111599621B (en) | 2022-11-11 |
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