CN209526029U - A kind of light guide type key switch - Google Patents
A kind of light guide type key switch Download PDFInfo
- Publication number
- CN209526029U CN209526029U CN201920503765.5U CN201920503765U CN209526029U CN 209526029 U CN209526029 U CN 209526029U CN 201920503765 U CN201920503765 U CN 201920503765U CN 209526029 U CN209526029 U CN 209526029U
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- Prior art keywords
- keyseat
- magnetic element
- axis
- via hole
- groove
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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
-
- 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
- H01H13/04—Cases; Covers
-
- 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
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- Push-Button Switches (AREA)
Abstract
The utility model discloses a kind of light guide type key switch, including keyseat and upper cover；Keyseat and upper cover snap connection and are assembled into shell, accommodation groove is formed on shell, the fixed PCB circuit board in keyseat bottom end, keyseat bottom centre, which opens, is formed with via hole, the first via hole is made on PCB circuit board and via hole face position, the guide groove of perforation is formed on upper lid, it further include that the key axis in accommodation groove is held in activity, it is arranged on the axis of key axis and is flexibly connected reset spring with keyseat, the keycap seat that pressing is set to key axis top can be such that key axis moves back and forth in the vertical direction in accommodation groove, PCB circuit board bottom end is additionally provided with the emitter for emitting light source and the reception device for receiving light source, emitter and reception device close to the first via hole and are opposite to each other on setting position；Key axis, which vertically moves back and forth the light source that axis can be driven to issue emitter, to be stopped, and cooperation reception device induction light source is blocked and triggers key conducting.
Description
Technical field
The utility model relates to technical field of electronic products, especially a kind of light guide type key switch.
Background technique
As people's life constantly improves, the use of computer is more more and more universal in society, has become people
Essential a kind of article in life.For keyboard as the essential input equipment of computer, function and type are also more next
More, keyboard is a kind of using frequent computer peripheral, and operating characteristics is obtained with the continuous innovation of technology
Promotion gradually, from machinery to photoelectricity, from photoelectricity to optics, from wired to wireless, the unfailing performance of keyboard and functional more next
Better.
Chinese patent electromechanics separate type photoelectric mechanical keyboard (patent No.: 201520065766.8) discloses a kind of light guide type
Key and keyboard, specifically, the electromechanics separate type photoelectric mechanical keyboard, including PCBA board, fixed plate and mechanical keyboard are opened
Ontology is closed, it further includes the light being arranged in PCBA board that mechanical keyboard Switch main body, which includes shell and the handle that is arranged on shell,
Crystal emitter and luminescent crystal reception device, handle are equipped with the light-blocking dress for blocking luminescent crystal emitter optical signal
It sets；Multiple buckle slots are set in fixed plate, shell is equipped with buckle, and mechanical keyboard Switch main body is by being fastened on buckle slot
Interior, buckle groove edge is equipped with fixed plate spacer column；When installation, fixed plate is fixedly connected with PCBA board, luminescent crystal emitter and
Luminescent crystal receives assembling device and extend into the cavity of mechanical keyboard switch.
The key for the electromechanical separate type photoelectric mechanical keyboard that above-mentioned 2015200657668 patent discloses, luminescent crystal is emitted
Device and luminescent crystal reception device are packed into the cavity of knife mechanical keyboard key, and such setting has problems in that: working as transmitting
When device and luminescent crystal reception device are damaged, can just it be repaired after needing to be removed the shell of key switch, meanwhile,
When assembly, also by chamber when just can be carried out assembly after emitter and reception device can only be welded, and being assembled in cavity
Intracorporal structure influences.
So the creator of this exercises designs a kind of light guide type key switch to solve the above problems.
Utility model content
The technical issues of solution of the utility model is to provide a kind of light for above-mentioned existing defect in the prior art
Conduction key switch, the light guide type key switching structure is compact, stability is good, reprocesses conveniently.
To solve above-mentioned technical problem, a kind of technical solution that the utility model is taken is as follows: a kind of light guide type key is opened
It closes, including keyseat and upper cover；The keyseat and upper cover snap connection and are assembled into shell, and accommodation groove, institute are formed on the shell
The fixed PCB circuit board in keyseat bottom end is stated, the keyseat bottom centre, which opens, is formed with via hole, and the PCB circuit board and via hole are just
To the first via hole is made on position, it is formed with the guide groove of perforation on the upper lid, further includes that the key axis in accommodation groove is held in activity,
It is arranged on the axis of the key axis and is flexibly connected reset spring with keyseat, the keycap seat that pressing is set to key axis top can make key axis exist
It is moved back and forth in the vertical direction in accommodation groove, the PCB circuit board bottom end is additionally provided with emitter and use for emitting light source
In the reception device for receiving light source, the emitter and reception device on setting position close to the first via hole and each other just
It is right；The key axis, which vertically moves back and forth the light source that axis can be driven to issue emitter, to be stopped, and the reception dress is cooperated
Induction light source is set to be blocked and trigger key conducting.
It is further described as to above-mentioned technical proposal:
In the above-mentioned technical solutions, the emitter is infrared transmitting tube, and the reception device is infrared receiving tube.
In the above-mentioned technical solutions, the axis includes middle shaft body, the middle fixed keycap seat in shaft body top,
It is formed in the middle shaft body by the stopper of axis body zone dimidiation section, the reset spring is movably set in the axis
On the lower semisection of ontology, fixed first magnetic element on the upper semisection of the middle shaft body, between the first magnetic element and stopper
It is arranged the second magnetic element that can be vertically movable along middle shaft body, is also set therewith together on the outside of the reset spring in the accommodation groove
The third magnetic element of axis, the third magnetic element are the adjustable hot-wire coil of electrical current, adjust the magnetic member of third
The reversed or positive electrical current size of part, can be such that the magnetic force between the second magnetic element and third magnetic element is less than or greater than
Magnetic force between first magnetic element and the second magnetic element matches the upper semisection for making the second magnetic element be maintained at middle shaft body
Or so that the second magnetic element shaft body in is moved to bottom and is hit in stopper and generate and push paragraph sense.
Further, first magnetic element is silicon steel sheet, and second magnetic element is magnet.
In the above-mentioned technical solutions, the pilot vertically protruded, institute are formed on the position of the keyseat bottom end matching via hole
It states pilot vertically to penetrate the first via hole and stretch out from PCB circuit board bottom end, the pilot and the emitter and reception fill
The guide groove opened and be formed with for leaded light on the position of face is set, is also formed with the second vertically communicated via hole in the pilot, it is described
Second via hole is used to penetrate and stretch between emitter and reception device for the axis.
In the above-mentioned technical solutions, four side of keyseat is formed with several catching grooves, close keyseat top in each catching groove
Be formed with button platform at end position, four side of upper cover be formed in position with the buckle that matches in number with catching groove, Mei Yisuo
It states buckle to be embedded in catching groove and make its hook and matched button platform hasp, matches the keyseat and snapped connection with the upper cover.
In the above-mentioned technical solutions, the keyseat fovea superior is formed with lower groove, when the keyseat and the upper cover snap connection,
The lower groove, which is docked and matched with guide groove, constitutes the accommodation groove；Guide groove is formed on the two sidewalls of the lower groove, it is described
The guide part to match in structure with guide groove is formed on the outside of keycap seat, the guide part is inlayed in guide groove, and institute is matched
Key axis movable inlaying is stated to be mounted in accommodation groove.
In the above-mentioned technical solutions, the guide groove inner sidewall is also formed with guide and limit slot, the guide part activity embedded in
It is in the guide and limit slot matched and vertically movable along guide and limit slot, the key axis vertical upward movement, the guide and limit can be made
Slot is also used to limit the stroke of key axis vertical upward movement.
Compared with prior art, the utility model has the beneficial effects that: the key switch of the utility model passes through light
The emitter and reception device of conduction detection are installed in PCB circuit board bottom end, and emitter and reception device is made to be placed in keyseat
Outside facilitates maintenance, the detection of emitter and reception device；Emitter and reception device are located at PCB circuit board bottom end,
Assemble welding is convenient, and is not limited by structure in key housing chamber body；Meanwhile the key switching structure of the utility model it is compact,
It is easy to assembly.
Detailed description of the invention
Fig. 1 is the perspective view of the present embodiment light guide type key switch；
Fig. 2 is the exploded view of the present embodiment light guide type key switch；
Fig. 3 is the sectional view of the present embodiment light guide type key switch.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
It is exemplary by reference to the embodiment that attached drawing describes, it is intended to for explaining the application, and should not be understood as pair
The limitation of the application.In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ",
" width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for description the application and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second "
It is used for description purposes only, is not understood to indicate or imply relative importance or implicitly indicates indicated technical characteristic
Quantity.Thus, define " first ", the feature of " second " can explicitly or implicitly include one or more spy
Sign.In the description of the present application, " several ", the meaning of " plurality " is two or more, unless otherwise clearly specific
It limits.Unless otherwise clearly defined and limited, in this application, the arts such as term " installation ", " connected ", " connection ", " fixation "
Language shall be understood in a broad sense, such as, it may be a fixed connection, may be a detachable connection, or be integrally connected；It can be machinery
Connection, is also possible to be electrically connected；It can be directly connected, two elements can also be can be indirectly connected through an intermediary
Internal connection.For the ordinary skill in the art, above-mentioned term can be understood in the application as the case may be
In concrete meaning.Unless otherwise clearly defined and limited, in this application, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.And fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign includes fisrt feature right above second feature and oblique upper under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature
A kind of attached drawing 1-3 example specific embodiment of the utility model, with reference to attached drawing 1-3, a kind of light guide type key is opened
It closes, it includes keyseat 1 and upper cover 2；The keyseat 1 snaps connection and is assembled into shell 001 with upper cover 2, makes on the shell 001
There is accommodation groove 002, the fixed PCB circuit board 3 in 1 bottom end of keyseat, 1 bottom centre of keyseat, which opens, is formed with via hole 101, described
The first via hole 301 is made on PCB circuit board 3 and 101 face position of via hole, the guide groove 201 of perforation is formed in the upper cover 2,
Further include that the key axis 4 in accommodation groove 002 is held in activity, is arranged on the axis 41 of the key axis 4 and is flexibly connected reset with keyseat 1
Spring 5, the keycap seat 42 that pressing is set to 4 top of key axis can be such that key axis 4 moves back and forth in the vertical direction in accommodation groove 002, lead to
It crosses in pressing keycap seat 42 and reset spring 5 is compressed during keeping axis 41 vertically movable, and then generate and unclamp keycap seat 42
The power that axis 41 is vertically sprung back afterwards；3 bottom end of PCB circuit board is additionally provided with the emitter 6 for emitting light source and is used for
The reception device 7 of light source is received, so, when assembling, the emitter 6 and reception device 7 are located at outside the shell 001
Side facilitates welding emitter 6 and reception device, the emitter 6 and reception device 7 to be also proximate to the on setting position
One via hole 301 is simultaneously opposite to each other, that is, emitter 6 and reception device 7 are located in 301 periphery of the first via hole
, also, emitter 6 and reception device 7 are located on the straight line where the same diameter of the first via hole 301, in this implementation
In example, the emitter 6 is infrared transmitting tube, and the reception device 7 is infrared receiving tube；During key, the key axis 4
It is vertical to move back and forth, and the light source for driving axis to issue emitter 6 stops, and the reception device 7 is then to receive
Less than the light source sensing signal that emitter 6 issues, corresponding induction light source is blocked and triggers key conducting.
In a kind of optional embodiment of the present embodiment, the axis 41 includes middle shaft body 411, the middle shaft body
The fixed keycap seat 42 in 411 tops is formed with the stopper that middle shaft body 411 is divided into two halves section in the middle shaft body 411
412, the reset spring 5 is movably set on the lower semisection of the middle shaft body 411, the upper semisection of the middle shaft body 411
Upper fixed first magnetic element 8, be arranged between the first magnetic element 8 and stopper 412 can along middle shaft body 411 it is vertically movable the
Two magnetic elements 9,5 outside of reset spring also sets co-axial third magnetic element 10 in the accommodation groove 002, described
Third magnetic element 10 is the adjustable hot-wire coil of electrical current, and first magnetic element 8 is silicon steel sheet, described second
Magnetic element 9 is magnet, in use, adjusting the reversed or positive electrical current size of third magnetic element 10, makes the second magnetism
Magnetic force between element 9 and third magnetic element 10 is less than or greater than the magnetic between the first magnetic element 8 and the second magnetic element 9
Power, matching make the second magnetic element 9 be maintained at the upper semisection of middle shaft body 411 or make the second magnetic element 9 along middle shaft body 411
It is moved to bottom and hits in stopper 412 and generate and push paragraph sense；It should be noted that the third magnetic element 10 does not lead to
Electric (reverse current 0) or reversed energization generates magnetic force or the second magnetism between the first magnetic element 8 and the second magnetic element 9
Element 9 and third magnetic element 10 generate repulsion (reversed magnetic force), that is, the second magnetic element 9 and third magnetic element 10 it
Between magnetic force less than the magnetic force between the first magnetic element 8 and the second magnetic element 9, so that the second magnetic element 9 is maintained at axis
The upper semisection of ontology 411；And after the 10 positive energization of third magnetic element, the second magnetic element 9 and third magnetic element
The magnetic force for generating magnetic force between 10 and being greater than between the first magnetic element 8 and the second magnetic element 9, the second magnetic element 9 is in
Shaft body 411 moves to bottom and hits stopper 412, generates and pushes paragraph sense；Adjust hot-wire coil (third magnetic element 9)
Forward and reverse electrical current size can adjust the magnetic force size between the second magnetic element 9 and third magnetic element 10, from
And change paragraph sense intensity and lower surging；By the way that above-mentioned the first magnetic element 8, the second magnetic element 9 and third magnetic is arranged
Property element 10, thus change key paragraph sense intensity and lower surging.
It is further described as to press-key structure, in the present embodiment, 1 bottom end of the keyseat matching via hole 101
It is formed with the pilot 102 vertically protruded on position, the pilot 102 vertically penetrates the first via hole 301 and from 3 bottom of PCB circuit board
End is stretched out, and is opened and is formed with for guide-lighting guide groove in the pilot 102 and the position of 7 face of the emitter 6 and reception device
103, and the aperture diameter size of light source that the depth of guide groove 103 is launched with emitter 6 matches, thus does not wear in axis 41
When entering to emitter 6 and reception device 7 between the two, the light source that emitter 6 issues can be received the reception of device 7；It is described
The second vertically communicated via hole 104 is also formed in pilot 102, second via hole 104 is used to penetrate for the axis 41
And it stretches between emitter 6 and reception device 7；In the present embodiment, 1 four side of keyseat is formed with several catching grooves 105,
Be formed with button platform 106 in each catching groove 105 at 1 apical position of keyseat, 2 four side of upper cover be formed in position and
The buckle 202 to match in number with catching groove 105, each buckle 202 be embedded in catching groove 105 and make its hook 203 with
Matched 106 hasp of button platform matches the keyseat 1 and snaps connection with the upper cover 2；1 fovea superior of keyseat is formed with lower groove
107, when the keyseat 1 is snapped connection with the upper cover 2, the lower groove 107, which is docked and matched with guide groove 201, constitutes the appearance
Set slot 002；It is formed with guide groove 108 on the two sidewalls of the lower groove 107, is formed in structure and leads on the outside of the keycap seat 42
The guide part 421 to match to slot 108, the guide part 421 are inlayed and in guide groove 108, match 4 movable inlaying of key axis
It is mounted in accommodation groove 002, it should be noted that 107 bottom end of lower groove is formed with upward convex and has coaxial with via hole 101
The positioning guide column 110 of location hole 109, the reset spring 5 are set in the lower semisection of axis 41, and the other end protrudes into location hole 109
Interior, matching reset spring 5 is connect with keyseat 1；In the present embodiment, 201 inner sidewall of guide groove is also formed with guide and limit slot
204,421 activity of guide part is in matched guide and limit slot 204 and vertically movable along guide and limit slot 204, can make
4 vertical upward movement of key axis, the guide and limit slot 204 are also used to limit the stroke of 4 vertical upward movement of key axis.
Do not limit the technical scope of the present invention above, it is all according to the utility model technical spirit to
On embodiment made by any modification, equivalent variations and modification, in the range of the technical solution for still falling within the utility model.
Claims (8)
1. a kind of light guide type key switch, it is characterised in that, including keyseat and upper cover；The keyseat is snapped connection and is filled with upper cover
It is made into shell, accommodation groove, the fixed PCB circuit board in keyseat bottom end are formed on the shell, the keyseat bottom centre opens system
There is via hole, makes the first via hole on the PCB circuit board and via hole face position, be formed with leading for perforation on the upper lid
Slot further includes that the key axis in accommodation groove is held in activity, is arranged on the axis of the key axis and is flexibly connected reset spring with keyseat,
The keycap seat that pressing is set to key axis top can be such that key axis moves back and forth in the vertical direction in accommodation groove, the PCB circuit board bottom
End is additionally provided with the emitter for emitting light source and the reception device for receiving light source, the emitter and reception device
Close to the first via hole and being opposite to each other on setting position；The key axis vertically moves back and forth and axis can be driven to emitter
The light source of sending is stopped, and the reception device induction light source is cooperated to be blocked and trigger key conducting.
2. a kind of light guide type key switch according to claim 1, it is characterised in that, the emitter is infrared emission
Pipe, the reception device are infrared receiving tube.
3. a kind of light guide type key switch according to claim 2, it is characterised in that, the axis includes middle shaft body,
The fixed keycap seat in middle shaft body top is formed with the gear of axis body zone dimidiation section in the middle shaft body
Portion, the reset spring are movably set on the lower semisection of the middle shaft body, fixed on the upper semisection of the middle shaft body
One magnetic element is arranged the second magnetic element that can be vertically movable along middle shaft body between the first magnetic element and stopper, described
Co-axial third magnetic element is also set in accommodation groove on the outside of the reset spring, the third magnetic element is electrical current
Adjustable hot-wire coil adjusts the reversed or positive electrical current size of third magnetic element, can make the second magnetic element
Magnetic force between third magnetic element is less than or greater than the magnetic force between the first magnetic element and the second magnetic element, and matching makes
Second magnetic element is maintained at the upper semisection of middle shaft body or the second magnetic element shaft body in is made to move and hit to bottom
In stopper and generation pushes paragraph sense.
4. a kind of light guide type key switch according to claim 3, it is characterised in that, first magnetic element is silicon steel
Piece, second magnetic element are magnet.
5. a kind of light guide type key switch according to any one of claims 1 to 4, which is characterized in that the keyseat bottom end
It matches and is formed with the pilot vertically protruded on the position of via hole, the pilot vertically penetrates the first via hole and from PCB circuit board
Bottom end is stretched out, and is opened and is formed with for guide-lighting guide groove, institute in the pilot and the position of the emitter and reception device face
It states and is also formed with the second vertically communicated via hole in pilot, second via hole is used to penetrate for the axis and stretch to hair
Between injection device and reception device.
6. a kind of light guide type key switch according to claim 5, it is characterised in that, four side of keyseat is formed with several
Catching groove is formed with button platform at keyseat apical position in each catching groove, and four side of upper cover is formed with sum number in position
The buckle to match on mesh with catching groove, each buckle are embedded in catching groove and make its hook and matched button platform hasp,
It is snapped connection with the keyseat and the upper cover.
7. a kind of light guide type key switch according to claim 6, it is characterised in that, the keyseat fovea superior is formed with recessed
When slot, the keyseat and the upper cover snap connection, the lower groove, which is docked and matched with guide groove, constitutes the accommodation groove；It is described
It is formed with guide groove on the two sidewalls of lower groove, is formed with the guide part to match in structure with guide groove on the outside of the keycap seat,
The guide part is inlayed and in guide groove, matches the key axis movable inlaying and be mounted in accommodation groove.
8. a kind of light guide type key switch according to claim 7, it is characterised in that, the guide groove inner sidewall, which is also formed with, leads
To limiting slot, the guide part activity is in matched guide and limit slot and vertically movable along guide and limit slot, can make described
Key axis vertical upward movement, the guide and limit slot are also used to limit the stroke of key axis vertical upward movement.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920503765.5U CN209526029U (en) | 2019-04-15 | 2019-04-15 | A kind of light guide type key switch |
| PCT/CN2019/105005 WO2020211267A1 (en) | 2019-04-15 | 2019-09-10 | Light guide type press-key switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920503765.5U CN209526029U (en) | 2019-04-15 | 2019-04-15 | A kind of light guide type key switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209526029U true CN209526029U (en) | 2019-10-22 |
Family
ID=68232618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920503765.5U Active CN209526029U (en) | 2019-04-15 | 2019-04-15 | A kind of light guide type key switch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209526029U (en) |
| WO (1) | WO2020211267A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021228047A1 (en) * | 2020-05-14 | 2021-11-18 | 东莞璟阳电子科技有限公司 | Magnetic key, key control device, and keyboard |
| WO2022051962A1 (en) * | 2020-09-10 | 2022-03-17 | 李文洲 | Non-contact device for pressing control, and method therefor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205594586U (en) * | 2016-01-22 | 2016-09-21 | 匡新华 | Light sense formula input device |
| CN206775481U (en) * | 2017-05-31 | 2017-12-19 | 杨洪 | A kind of optoelectronic switch and K axle Assembled keyboard buttons |
| CN207458812U (en) * | 2017-11-16 | 2018-06-05 | 东莞璟阳电子科技有限公司 | A kind of magnetic press key |
| CN208298737U (en) * | 2018-04-27 | 2018-12-28 | 东莞璟阳电子科技有限公司 | A kind of magnetic attractive button |
-
2019
- 2019-04-15 CN CN201920503765.5U patent/CN209526029U/en active Active
- 2019-09-10 WO PCT/CN2019/105005 patent/WO2020211267A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021228047A1 (en) * | 2020-05-14 | 2021-11-18 | 东莞璟阳电子科技有限公司 | Magnetic key, key control device, and keyboard |
| WO2022051962A1 (en) * | 2020-09-10 | 2022-03-17 | 李文洲 | Non-contact device for pressing control, and method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020211267A1 (en) | 2020-10-22 |
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Address after: 523000 Room 201, building 1, 28 jinyuling Road, Dongcheng Street, Dongguan City, Guangdong Province Patentee after: DONGGUAN JINGYANG ELECTRONICS AND TECHNOLOGY Co.,Ltd. Address before: No. 231, area B, Datang e-commerce center, Taixin Road, pailouji community, Wanjiang street, Dongguan City, Guangdong Province, 523000 Patentee before: DONGGUAN JINGYANG ELECTRONICS AND TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |