CN111834151A - Server, control key and magnetic induction triggering structure - Google Patents
Server, control key and magnetic induction triggering structure Download PDFInfo
- Publication number
- CN111834151A CN111834151A CN202010710045.3A CN202010710045A CN111834151A CN 111834151 A CN111834151 A CN 111834151A CN 202010710045 A CN202010710045 A CN 202010710045A CN 111834151 A CN111834151 A CN 111834151A
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- CN
- China
- Prior art keywords
- magnetic induction
- shaft core
- base
- switch
- structure according
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- 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.)
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Classifications
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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
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
-
- 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
- H01H13/02—Details
-
- 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
- H01H13/02—Details
- H01H13/10—Bases; Stationary contacts mounted thereon
-
- 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
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/20—Driving mechanisms
-
- 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
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
- H01H13/32—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs one end of spring being fixedly connected to the stationary or movable part of the switch and the other end reacting with a movable or stationary rigid member respectively through pins, cams, toothed, or other shaped surfaces
Abstract
The invention discloses a magnetic induction triggering structure which comprises a base, a spring vertically arranged on the surface of the base, a shaft core arranged at the top end of the spring and used for moving vertically under the action of pressing, and a magnetic induction switch arranged on the surface of the base and used for triggering a preset output signal through a Hall effect when the shaft core is vertically pressed to a preset distance. The magnetic induction trigger structure provided by the invention utilizes the Hall effect to trigger the key to output signals by the mode that the shaft core is close to the magnetic induction switch under the pressing action, so as to realize key trigger control, the shaft core does not need to be in physical contact with the magnetic induction switch, so that the magnetic induction switch is prevented from being impacted and worn, the service life can be prolonged, meanwhile, the shaft core and the magnetic induction switch do not need to be in surface-to-surface friction contact, so that the phenomena of trigger delay and rebound hysteresis can be reduced as much as possible, and the trigger sensitivity of the switch is improved. The invention also discloses a control key and a server, and the beneficial effects are as above.
Description
Technical Field
The invention relates to the technical field of servers, in particular to a magnetic induction triggering structure. The invention also relates to a control key and a server.
Background
With the development of the electronic technology in China, more and more electronic devices have been widely used.
Servers are important components in electronic devices, and are devices that provide computing services. Since the server needs to respond to and process the service request, the server generally has the capability of assuming and securing the service. The server is divided into a file server, a database server, an application program server, a WEB server and the like according to different service types provided by the server.
In the big data era, a large number of IT devices are centrally located in a data center. These data centers include various types of servers, storage, switches, and a large number of cabinets and other infrastructure. Each IT device is composed of various hardware board cards, such as a computing module, a memory module, a storage module, a chassis and the like. The current data center generally refers to a server cabinet, and the servers are generally installed in the server cabinet in an integrated manner.
In order to facilitate the administrator to observe, grasp and control the operation state of each server in the server cabinet, a control panel is generally disposed at the front end of the server cabinet or the front end of each server, so as to manually control the operation state of each server through the control panel.
At present, various keys on a server control panel are generally mechanical keys, and the contact of a contact copper sheet triggers a control switch to generate a corresponding output signal to realize key triggering control mainly through the abutting collision of a shaft core and the contact copper sheet when the shaft core is pressed. However, in the long-term use process, the contact copper sheet is frequently abutted and collided with the control switch, and the pressing force of the manager is easily too large, so that the control switch is quickly abraded, the service life is short, and abnormal triggering and insensitive triggering are easily caused. In addition, the surface-to-surface friction between the contact copper sheet and the control switch also has the problems of trigger delay and rebound delay caused by material sticking.
Therefore, how to improve the service life of the switch and the trigger sensitivity of the switch and simultaneously reduce the trigger delay and the rebound hysteresis as much as possible on the basis of realizing the normal key signal trigger control is a technical problem faced by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a magnetic induction trigger structure which can improve the service life of a switch and the trigger sensitivity of the switch and simultaneously reduce the phenomena of trigger delay and rebound hysteresis as much as possible on the basis of realizing the trigger control of normal key signals.
In order to solve the technical problem, the invention provides a magnetic induction triggering structure which comprises a base, a spring vertically arranged on the surface of the base, a shaft core arranged at the top end of the spring and used for moving vertically under the action of pressing, and a magnetic induction switch arranged on the surface of the base and used for triggering a preset output signal through a Hall effect when the shaft core is vertically pressed to a preset distance.
Preferably, the base surface is further provided with an elastic assembly, the top end of the elastic assembly is abutted to the bottom end of the shaft core, and the bottom end of the elastic assembly is provided with a magnetic extension rod which is opposite to the magnetic induction switch and used for triggering the magnetic induction switch during elastic deformation.
Preferably, the magnetic extension rod is a metal long cylinder.
Preferably, the elastic component comprises a fixing part used for being abutted against the bottom end of the shaft core, and a deformation part connected to the bottom end of the fixing part, and the magnetic extension rod is connected to the bottom end of the deformation part.
Preferably, the top end of the spring is mounted in the bottom surface mounting groove of the shaft core, and an abutting rod which extends outwards and is used for abutting against the fixing part when the spring is vertically pressed down is arranged on the side wall of the shaft core.
Preferably, an upper cover for pressing is mounted at the top end of the shaft core.
Preferably, the bottom of the upper cover is provided with a plurality of buckles for detachable connection with the base.
Preferably, a resistance adjusting air valve for spraying compressed air to the bottom end face of the shaft core to adjust resistance when the shaft core is pressed downwards is further embedded in the surface of the base.
The invention also provides a control key which comprises the magnetic induction triggering structure.
The invention also provides a server, which comprises a case, a control panel arranged at the front end of the case and a plurality of control keys arranged on the surface of the control panel, wherein the control keys are the control keys in the previous item.
The magnetic induction trigger structure provided by the invention mainly comprises a base, a spring, a shaft core and a magnetic induction switch. Wherein, the base is the major structure, mainly used installs other spare parts. The spring is vertically arranged on the surface of the base, and the elastic deformation direction of the spring is vertical (vertical). The axle center sets up on the top of spring, and mainly used is along vertical elevating movement under user's the effect of pressing, compresses the spring simultaneously. The magnetic induction switch is arranged on the surface of the base and is mainly used for changing the state of an internal circuit through the Hall effect, so that the switching of the switch state is realized. Therefore, when the shaft core is pressed downwards vertically and the shaft core is pressed downwards to be within a preset distance from the magnetic induction switch, the Hall effect on the magnetic induction switch is obvious, so that the state of the magnetic induction switch is triggered to be switched from the off state to the on state, a circuit is switched on, a preset output signal is triggered, and the triggering control of the key signal is realized. Of course, after the current pressing triggering operation of the shaft core is completed, the shaft core rebounds to reset under the action of the elastic force of the spring to wait for the next pressing triggering operation of the user. Therefore, the magnetic induction triggering structure provided by the invention triggers the key to output signals by utilizing the Hall effect in a mode that the shaft core is close to the magnetic induction switch under the pressing action, so that the key triggering control is realized, the shaft core does not need to be in physical contact with the magnetic induction switch, the magnetic induction switch is prevented from being impacted and worn, the service life can be prolonged, and meanwhile, the shaft core and the magnetic induction switch do not need to be in surface-to-surface friction contact, so that the triggering delay and the rebound hysteresis can be reduced as much as possible, and the switch triggering sensitivity is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Fig. 2 is a schematic surface structure diagram of the base shown in fig. 1.
Wherein, in fig. 1-2:
the device comprises a base-1, a spring-2, a shaft core-3, a magnetic induction switch-4, an elastic component-5, an upper cover-6, a buckle-7 and a resistance adjusting air valve-8;
a butt-joint rod-31, a magnetic extension rod-51, a fixed part-52 and a deformation part-53.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
In a specific embodiment provided by the invention, the magnetic induction triggering structure mainly comprises a base 1, a spring 2, a shaft core 3 and a magnetic induction switch 4.
Wherein, base 1 is the major structure, mainly used installs other spare parts. Generally, the base 1 is mainly rectangular, such as square or rectangular.
The spring 2 is vertically arranged on the surface of the base 1, and the elastic deformation direction of the spring is vertical (vertical). Typically, the spring 2 is a coil spring 2.
The shaft core 3 is arranged at the top end of the spring 2 and is mainly used for moving up and down along the vertical direction under the pressing action of a user and compressing the spring 2. Of course, when the external pressing force disappears, the shaft core 3 returns to the initial position by the elastic reaction force of the spring 2.
The magnetic induction switch 4 is arranged on the surface of the base 1 and is mainly used for changing the state of an internal circuit through the Hall effect, so that the switching of the switch state is realized. Generally, the magnetic induction switch 4 is a hall effect switch, and belongs to a proximity switch.
Therefore, when the shaft core 3 is pressed downwards vertically and the shaft core 3 is pressed downwards to be within a preset distance from the magnetic induction switch 4, the Hall effect on the magnetic induction switch 4 is obvious, so that the magnetic induction switch 4 is triggered to switch the switch state, the switch state is switched from the off state to the on state, a circuit is conducted, a preset output signal is triggered, and the key signal triggering control is realized. Of course, after the current pressing triggering operation of the shaft core 3 is completed, the spring rebounds to reset under the action of the elastic force of the spring 2, and waits for the next pressing triggering operation of the user.
Therefore, the magnetic induction triggering structure provided by the embodiment triggers the key output signal by using the hall effect in a manner that the shaft core 3 is close to the magnetic induction switch 4 under the pressing action, so that the key triggering control is realized, the shaft core 3 does not need to be in physical contact with the magnetic induction switch 4, so that the magnetic induction switch 4 is prevented from being impacted and worn, the service life can be prolonged, meanwhile, the shaft core 3 and the magnetic induction switch 4 do not need to be in surface-to-surface friction butt joint, so that the triggering delay and the rebound hysteresis can be reduced as much as possible, and the switch triggering sensitivity is improved.
In addition, in consideration of the fact that the pressing stroke of the shaft core 3 may be too long if the magnetic induction switch 4 is directly triggered by the shaft core 3, the elastic member 5 is additionally provided in the present embodiment in order to shorten the pressing stroke. Specifically, the elastic component 5 is disposed on the surface of the base 1, the top end of the elastic component 5 abuts against the bottom end of the shaft core 3, and the bottom end of the elastic component 5 is provided with a magnetic extension rod 51. The end of the magnetic extension rod 51 faces the magnetic switch 4 and is suspended above the magnetic switch 4 in a natural state to keep a maximum distance from the magnetic switch 4, and when the spindle core 3 is pressed, the spindle core 3 is elastically deformed by abutting against the top end of the elastic component 5, so that the magnetic extension rod 51 vertically extends downwards under the action of the elastic deformation to gradually reduce the distance from the magnetic switch 4 until the magnetic switch 4 is triggered.
Generally, in order to facilitate the magnetic extension rod 51 to trigger the magnetic switch 4 and improve the trigger sensitivity of the magnetic switch 4, in this embodiment, the magnetic extension rod 51 is specifically a metal long cylinder, and thus, when the magnetic extension rod 51 approaches the magnetic switch 4, the hall effect is more obvious.
In a preferred embodiment with respect to the elastic member 5, the elastic member 5 mainly includes a fixed portion 52 and a deformation portion 53. The fixed portion 52 is an upper half structure, and the deformable portion 53 is a lower half structure. The fixed portion 52 is held in contact with the bottom end of the shaft core 3, the deformable portion 53 is connected to the bottom end of the fixed portion 52, and the rod 51 is connected to the bottom end of the deformable portion 53. So set up, when axle core 3 pressurized, will together push down with fixed part 52 to respectively compression spring 2 and deformation portion 53, make deformation portion 53 produce elastic deformation, and then the elastic deformation through deformation portion 53 drives the vertical decline of magnetic stretch rod 51.
Further, in order to facilitate the abutment of the shaft core 3 against the fixing portion 52, the present embodiment provides an abutment rod 31 extending outward by a predetermined length on the side wall of the shaft core 3. Specifically, the distal end of the abutment lever 31 may be connected to the top end surface of the fixing portion 52 so as to be held in abutment therewith. Simultaneously, seted up the mounting groove on the bottom surface of axle core 3, the top of spring 2 is installed in this mounting groove, can improve spring 2's installation stability to the mounting groove specifically can be cylindricly, can be to the vertical guide effect of the concertina movement stroke of spring 2, the slope appears or rocks during the prevention concertina movement.
In addition, in order to facilitate the user to press the shaft core 3 axially, the top end of the shaft core 3 is provided with an upper cover 6. Specifically, the upper cover 6 may be rectangular and have a flat or arc surface for pressing. In order to facilitate the detachment and installation operations of the upper cover 6 on the base 1, the embodiment further provides a plurality of fasteners 7 at the bottom of the upper cover 6, and the upper cover 6 and the base 1 are detachably connected by the clamping connection between the fasteners 7 and the clamping grooves on the base 1.
As shown in fig. 2, fig. 2 is a schematic surface structure diagram of the base 1 shown in fig. 1.
In another specific embodiment, the present embodiment further embeds a resistance adjusting air valve 8 on the surface of the base 1. Generally, the resistance adjusting air valve 8 is embedded in the center of the surface of the base 1 and is located at the bottom mounting position of the spring 2, and the air outlet of the air valve is opposite to the bottom end face of the shaft core 3. In order to prevent the air valve from being blocked by the spring 2, the air outlet of the resistance adjusting air valve 8 can be annularly positioned at the outer ring of the spring 2 and/or circularly positioned at the inner ring of the spring 2. Specifically, this resistance governing pneumatic valve 8 mainly used is when axle core 3 pushes down, to its bottom terminal surface injection compressed air to the resistance is formed to pushing down of axle core 3, makes the user have clear feedback and feel when pressing the button, thereby knows the button operation accurately and whether presses target in place.
The embodiment further provides a control key, which mainly comprises a magnetic induction triggering structure, wherein the specific content of the magnetic induction triggering structure is the same as the related content, and is not described herein again.
The embodiment further provides a server, which mainly includes a chassis, a control panel disposed at the front end of the chassis, and a plurality of control keys disposed on the control panel, wherein specific contents of each control key are the same as those of the above related contents, and are not described herein again.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a magnetic induction trigger structure, its characterized in that includes base (1), sets up in base (1) spring (2) on the surface, set up in spring (2) top is used for along vertical motion's axle core (3) under pressing the effect, and set up in base (1) on the surface, be used for axle core (3) vertical pushes down to predetermineeing when the distance through hall effect trigger predetermine output signal's magnetic induction switch (4).
2. The magnetic induction triggering structure according to claim 1, wherein an elastic component (5) is further arranged on the surface of the base (1), the top end of the elastic component (5) is abutted against the bottom end of the shaft core (3), and a magnetic extension rod (51) which is opposite to the magnetic induction switch (4) and used for triggering the magnetic induction switch (4) when the magnetic induction switch is elastically deformed is arranged at the bottom end of the elastic component (5).
3. The magnetically inductive trigger structure according to claim 2, wherein the magnetic wand (51) is embodied as a metal long cylinder.
4. The magnetically inductive trigger structure according to claim 2, wherein the elastic component (5) comprises a fixed portion (52) for abutting against the bottom end of the shaft core (3), a deformation portion (53) connected to the bottom end of the fixed portion (52), and the magnetic extension rod (51) is connected to the bottom end of the deformation portion (53).
5. The magnetic induction trigger structure according to claim 4, characterized in that the top end of the spring (2) is mounted in the bottom surface mounting groove of the shaft core (3), and the side wall of the shaft core (3) is provided with an abutting rod (31) which extends outwards and is used for abutting against the fixing part (52) when vertically pressing downwards.
6. The magnetically inductive trigger structure according to claim 5, wherein the top end of the shaft core (3) is provided with an upper cover (6) for pressing.
7. The magnetic induction trigger structure according to claim 6, characterized in that the bottom of the upper cover (6) is provided with a plurality of buckles (7) for detachable connection with the base (1).
8. The magnetic induction trigger structure according to any one of claims 1 to 7, characterized in that a resistance adjusting air valve (8) for spraying compressed air to the bottom end face of the shaft core (3) to adjust the resistance when the shaft core is pressed downwards is further embedded on the surface of the base (1).
9. A control button comprising a magnetically sensitive trigger structure according to any of claims 1-8.
10. A server, comprising a chassis, a control panel disposed at a front end of the chassis, and a plurality of control keys disposed on a surface of the control panel, wherein the control keys are the control keys of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010710045.3A CN111834151A (en) | 2020-07-22 | 2020-07-22 | Server, control key and magnetic induction triggering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010710045.3A CN111834151A (en) | 2020-07-22 | 2020-07-22 | Server, control key and magnetic induction triggering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111834151A true CN111834151A (en) | 2020-10-27 |
Family
ID=72924625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010710045.3A Withdrawn CN111834151A (en) | 2020-07-22 | 2020-07-22 | Server, control key and magnetic induction triggering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111834151A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1436962A (en) * | 1972-07-06 | 1976-05-26 | Triumph Werke Nuernberg Ag | Key switches |
| CN101335142A (en) * | 2007-06-28 | 2008-12-31 | 王光达 | Button switch having guiding device and construction thereof |
| KR20110048880A (en) * | 2009-11-03 | 2011-05-12 | (주)센트로닉스 | Input device |
| CN104576141A (en) * | 2014-12-30 | 2015-04-29 | 东莞市环诺电子科技有限公司 | Non-contact keyboard switch |
| CN204441152U (en) * | 2014-12-30 | 2015-07-01 | 东莞市环诺电子科技有限公司 | A kind of non-contacting keypad switch |
| CN204442328U (en) * | 2015-02-10 | 2015-07-01 | 徐孝海 | Hollow Hall axle key dish |
| CN104994299A (en) * | 2015-07-16 | 2015-10-21 | 青岛海信移动通信技术股份有限公司 | Portable electronic device with photographing function |
| CN204905117U (en) * | 2015-08-13 | 2015-12-23 | 惠州冠泰电子有限公司 | Button structure of bounceing with sound |
| CN105355496A (en) * | 2015-11-24 | 2016-02-24 | 东莞市高特电子有限公司 | Hall principle based LED lamp mechanical keyboard switch |
| CN205092179U (en) * | 2015-11-24 | 2016-03-16 | 东莞市高特电子有限公司 | LED lamp mechanical keyboard switch based on hall principle |
| CN205900404U (en) * | 2016-08-04 | 2017-01-18 | 东莞市凯华电子有限公司 | Photoelectric type keyboard switch |
| US20190319620A1 (en) * | 2018-04-13 | 2019-10-17 | Tactual Labs Co. | Keyboard key with capacitive switch |
| CN209675164U (en) * | 2019-05-10 | 2019-11-22 | 乐清市合盈电子有限公司 | Unipolarity magnetic induction key switch and mechanical keyboard |
| CN210120545U (en) * | 2019-08-06 | 2020-02-28 | 惠州佳达隆电子科技有限公司 | Linear key switch |
| CN210575658U (en) * | 2019-11-01 | 2020-05-19 | 惠州佳达隆电子科技有限公司 | Keyboard key switch |
| CN111223702A (en) * | 2020-03-09 | 2020-06-02 | 广东易讯电子科技有限公司 | Sounding hand-feeling key |
-
2020
- 2020-07-22 CN CN202010710045.3A patent/CN111834151A/en not_active Withdrawn
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1436962A (en) * | 1972-07-06 | 1976-05-26 | Triumph Werke Nuernberg Ag | Key switches |
| CN101335142A (en) * | 2007-06-28 | 2008-12-31 | 王光达 | Button switch having guiding device and construction thereof |
| KR20110048880A (en) * | 2009-11-03 | 2011-05-12 | (주)센트로닉스 | Input device |
| CN104576141A (en) * | 2014-12-30 | 2015-04-29 | 东莞市环诺电子科技有限公司 | Non-contact keyboard switch |
| CN204441152U (en) * | 2014-12-30 | 2015-07-01 | 东莞市环诺电子科技有限公司 | A kind of non-contacting keypad switch |
| CN204442328U (en) * | 2015-02-10 | 2015-07-01 | 徐孝海 | Hollow Hall axle key dish |
| CN104994299A (en) * | 2015-07-16 | 2015-10-21 | 青岛海信移动通信技术股份有限公司 | Portable electronic device with photographing function |
| CN204905117U (en) * | 2015-08-13 | 2015-12-23 | 惠州冠泰电子有限公司 | Button structure of bounceing with sound |
| CN105355496A (en) * | 2015-11-24 | 2016-02-24 | 东莞市高特电子有限公司 | Hall principle based LED lamp mechanical keyboard switch |
| CN205092179U (en) * | 2015-11-24 | 2016-03-16 | 东莞市高特电子有限公司 | LED lamp mechanical keyboard switch based on hall principle |
| CN205900404U (en) * | 2016-08-04 | 2017-01-18 | 东莞市凯华电子有限公司 | Photoelectric type keyboard switch |
| US20190319620A1 (en) * | 2018-04-13 | 2019-10-17 | Tactual Labs Co. | Keyboard key with capacitive switch |
| CN209675164U (en) * | 2019-05-10 | 2019-11-22 | 乐清市合盈电子有限公司 | Unipolarity magnetic induction key switch and mechanical keyboard |
| CN210120545U (en) * | 2019-08-06 | 2020-02-28 | 惠州佳达隆电子科技有限公司 | Linear key switch |
| CN210575658U (en) * | 2019-11-01 | 2020-05-19 | 惠州佳达隆电子科技有限公司 | Keyboard key switch |
| CN111223702A (en) * | 2020-03-09 | 2020-06-02 | 广东易讯电子科技有限公司 | Sounding hand-feeling key |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201027 |
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| WW01 | Invention patent application withdrawn after publication |