CN109285709B - Large-stroke key switch with larger over-stroke - Google Patents
Large-stroke key switch with larger over-stroke Download PDFInfo
- Publication number
- CN109285709B CN109285709B CN201710589978.XA CN201710589978A CN109285709B CN 109285709 B CN109285709 B CN 109285709B CN 201710589978 A CN201710589978 A CN 201710589978A CN 109285709 B CN109285709 B CN 109285709B
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- base
- terminal
- pressing handle
- rubber core
- key switch
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- 230000000903 blocking effect Effects 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- LAXBNTIAOJWAOP-UHFFFAOYSA-N 2-chlorobiphenyl Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1 LAXBNTIAOJWAOP-UHFFFAOYSA-N 0.000 description 2
- 101710149812 Pyruvate carboxylase 1 Proteins 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H01H13/04—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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/028—Key stroke
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention discloses a key switch with a large stroke and a large overstroke, which comprises a PCB (printed circuit board) and a key switch arranged on the PCB, wherein the key switch comprises a rubber cover, a pressing handle, a base and a rubber core. The base is connected with the rubber cover in a clamping manner, a convex slot hole is formed in the rubber cover, and the pressing handle is arranged in the convex slot hole and can move up and down along the inner wall of the convex slot hole. The base is provided with a positioning column, the bottom of the pressing handle is provided with a mounting hole matched with the positioning column, and the positioning column protrudes out of the upper end face of the base and stretches into the mounting hole corresponding to the pressing handle. A spring is arranged between the pressing handle and the base, one end of the spring is sleeved on the positioning column of the base, and the other end of the spring is arranged in the mounting hole. The invention has small volume, more convenient use, more flexible disassembly and replacement, and increases the stroke of the key and improves the stability and the transmission effect of the stroke of the key and the contact of the contact piece by arranging the rubber core in the pressing handle.
Description
Technical Field
The invention relates to the technical field of key switches, in particular to a key switch with a large stroke and a large overstroke.
Background
Along with development of science and technology, more and more electronic devices are used in life of people, and a mechanical keyboard matched with the electronic devices is common, and a switch adopted by the common mechanical keyboard is a metal material contact type mechanical key switch, and disconnection of the mechanical switch is realized mainly through a metal material contact. The traditional optical axis mechanical key is characterized in that the optical crystal transmitting and receiving device is arranged in the key switch, the bottom pin is welded on the PCB, then the key switch is clamped in the clamping groove, finally the PCB and the iron plate are fixed through the fixing column on the rotary iron plate, so that once a certain key is damaged, the trouble that the key is required to be disassembled and maintained is caused, the fixing column is required to be unscrewed, the optical crystal receiving device and the transmitting device are required to be pulled out from the PCB, the processing difficulty is very high, and the key is also easy to damage.
A general mechanical key realizes the switch of the key in a pressing mode; the upper and lower terminals are contacted or the connecting piece is arranged between the upper and lower terminals in an up and down pressing mode, the middle connecting piece of the upper and lower terminals is pressed by the pressing handle, so that the switch of the key is realized, such as a tact switch, the upper and lower terminals are contacted (such as a micro switch and a tact switch), but the total stroke of the mechanical key is very short, the pressing handle can not move downwards continuously after the upper and lower terminals are contacted, and a large stroke and a large overstroke pressing mode can not be realized, wherein the large overstroke means that the switch can be pressed downwards after being conducted.
[ invention ]
The invention aims to effectively overcome the defects of the technology and provide the key switch with large stroke and larger overstroke while realizing quick replacement of keys.
To achieve the purpose, the invention adopts the following technical scheme: the key switch with a large stroke and a large over-stroke simultaneously comprises a PCB and a key switch arranged on the PCB, wherein the key switch comprises a rubber cover, a pressing handle, a base and a rubber core; the base is connected with the rubber cover in a clamping manner, a convex slot hole is formed in the rubber cover, and the pressing handle is arranged in the convex slot hole and can move up and down along the inner wall of the convex slot hole; the base is provided with a positioning column, the bottom of the pressing handle is provided with a mounting hole matched with the positioning column, and the positioning column protrudes out of the upper end face of the base and stretches into the mounting hole corresponding to the pressing handle; a spring is arranged between the pressing handle and the base, one end of the spring is sleeved on the positioning column of the base, and the other end of the spring is arranged in the mounting hole.
Further, the bottom of the pressing handle is provided with a containing cavity with a downward opening, a rubber core is arranged in the containing cavity, and the rubber core is embedded in the containing cavity and moves up and down in the containing cavity.
Further, a pressure spring is arranged in the rubber core, an opening is formed in the upper end of the rubber core and is provided with a mounting groove for placing the pressure spring, a boss is arranged on the inner wall surface of the top of the accommodating cavity, one end of the pressure spring is arranged on the inner wall of the mounting groove of the rubber core, and the other end of the pressure spring is sleeved on the boss of the inner wall surface of the accommodating cavity.
Further, blocking portions are respectively arranged on the side walls of the accommodating cavities, protruding blocks propped against the blocking portions are arranged at the openings of the upper ends of the rubber cores, the lower ends of the rubber cores penetrate through the blocking portions of the accommodating cavities, the protruding blocks at the upper ends of the rubber cores are in contact with the blocking portions and propped against the blocking portions, and the rubber cores are limited in the blocking portions of the accommodating cavities through the protruding blocks.
Further, the front side and the rear side of the rubber cover extend downwards to form elastic hanging arms, and the lower ends of the elastic hanging arms are provided with a bump to form a hanging table; the PCB is provided with an inserting part corresponding to the elastic hanging arm, the elastic hanging arm on the rubber cover can penetrate through the bottom of the PCB, and the hanging table on the elastic hanging arm can hang the bottom of the PCB, so that the key switch is fixed with the PCB.
Further, the base is also provided with an elastic sheet, a contact terminal and a lower terminal; the contact terminal and the lower terminal are arranged on one side of the base and below the rubber core, and the elastic sheet is arranged on the other side of the base and is in contact with the end face of the pressing handle.
Further, a first terminal is arranged at the bottom of the contact terminal, and a second terminal is arranged at the bottom of the lower terminal; two metal clips are arranged on the PCB and are respectively arranged at the positions corresponding to the first terminal and the second terminal; the first terminal on the contact terminal and the second terminal on the lower terminal can be inserted into a metal clip welded and fixed on the PCB through the base.
Further, be equipped with the several buckle on the base both sides wall, glue to cover and be equipped with buckle matched with buckle groove, the base is connected with the buckle groove through buckle with gluing the lid.
Further, a guide post is arranged in the mounting hole at the bottom of the pressing handle, a guide hole corresponding to the guide post is arranged on the positioning post, and the guide post is embedded in the guide hole and moves up and down along the guide hole.
The invention has the beneficial effects that: the invention has small volume, more convenient use, more flexible disassembly and replacement, and the key switch can be respectively inserted into the metal clips on the PCB through the two terminals, so that the key switch is elastically contacted with the metal clips, and the connection of a circuit is realized. And the rubber core is arranged in the pressing handle, so that the stroke of the key is increased, and the stroke of the key and the contact stability between the contact pieces are improved.
[ description of the drawings ]
FIG. 1 is a schematic view of an embodiment of the overall structure of the present invention;
FIG. 2 is a schematic diagram of an embodiment of a split structure of the present invention;
FIG. 3 is a schematic representation of an embodiment of an explosive structure according to the present invention;
FIG. 4 is a schematic view of an embodiment of the structure of the handle of the present invention;
FIG. 5 is a schematic view of a structural embodiment of a rubber core according to the present invention;
FIG. 6 is a schematic view of a base structure according to an embodiment of the present invention
Fig. 7 is a schematic diagram of a cross-sectional structure of the present invention.
In the figure: the PCB board 1, the plastic cover 2, the pressing handle 3, the base 4, the plastic core 5, the spring 6, the metal clip 10, the plug-in part 11, the convex slot 21, the elastic hanging arm 22, the buckling groove 23, the mounting cavity 31, the accommodating cavity 32, the boss 33, the blocking part 34, the guiding post 35, the end face 36, the positioning post 41, the contact terminal 42, the lower terminal 43, the elastic sheet 44, the buckling 45, the guiding hole 46, the pressure spring 51, the opening 52, the mounting groove 53, the convex block 54, the hanging table 221, the first terminal 421 and the second terminal 431.
[ detailed description ] of the invention
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 to 7, a key switch with a large stroke and a large overstroke comprises a PCB board 1 and a key switch arranged on the PCB board 1, wherein the key switch comprises a rubber cover 2, a press handle 3, a base 4 and a rubber core 5. The base 4 is connected with the rubber cover 2 in a clamping manner, a convex slot 21 is arranged on the rubber cover 2, and the press handle 3 is arranged in the convex slot 21 and can move up and down along the inner wall of the convex slot 21. The base 4 is provided with a positioning column 41, the bottom of the pressing handle 3 is provided with a mounting hole 31 matched with the positioning column 41, and the positioning column 41 protrudes out of the upper end face of the base 4 and stretches into the mounting hole 31 corresponding to the pressing handle 3. A spring 6 is arranged between the pressing handle 3 and the base 4, one end of the spring 6 is sleeved on the positioning column 41 of the base 4, and the other end of the spring 6 is arranged in the mounting hole 31.
Specifically, as shown in fig. 3 and 4, the key switch with large stroke and large overstroke of the present invention is mounted and fixed on the PCB board 1 through the elastic hanging arm 22, and the contact terminal 42 and the lower terminal 43 can be plugged into the metal clip 10 welded on the PCB board 1, thereby achieving the connection of the circuit. The rubber core 5 is embedded in the accommodating cavity 32 at the bottom of the pressing handle 3, the rubber core 5 can move up and down in the accommodating cavity 32 through the pressure spring 51, namely, the rubber core 5 is installed above the contact terminal 42 and the lower terminal 43, the rubber core 5 is driven to move downwards together by the downward movement of the pressing handle 3, when the rubber core moves to a certain stroke, the bottom surface of the rubber core 5 contacts with the contact terminal 42 below and continues to move downwards, the pressure spring 51 in the rubber core 5 has an elasticity larger than that of the contact terminal 42, the contact terminal 42 is pressed downwards until the contact point of the contact terminal 42 contacts with the contact point of the lower terminal 43, at the moment, the contact terminal 42 and the lower terminal 43 are tightly attached, the pressure spring 51 in the rubber core 5 is propped, and the rubber core 5 cannot continue to move downwards.
As shown in fig. 6, a spring 6 is arranged between the pressing handle 3 and the base 4, the spring 6 is sleeved on a positioning column 41 of the base 4, the other end of the spring 6 is arranged in a mounting hole 31 at the bottom of the pressing handle 3, a guide column 35 is arranged in the mounting hole 31 at the bottom of the pressing handle 3, a guide hole 46 corresponding to the guide column 35 is arranged on the positioning column 41, and the guide column 35 extends into the guide hole 46 and moves up and down along the guide hole 46. That is, one end of the spring 6 is sleeved on the positioning column 41 of the base 4, the other end of the spring 6 is sleeved on the guide column 35 in the mounting hole 31, and the guide column 35 can extend into the guide hole 46 on the positioning column 41, so that the spring 6 can be firmly fixed between the rubber cover 2 and the base 4, and the spring 6 is not easy to deviate when stretching and contracting. So when the glue core 5 is held against and cannot continue to move downwards, the push handle 3 can still continue to move downwards by the spring 6 until the spring 6 is compressed to the limit, the push handle 3 is blocked on the base 4, and the contact terminal 42 and the lower terminal 43 still remain in contact. That is, the total stroke of the key switch of the present invention is large, the contact terminal 42 can continue to move downward after contacting the lower terminal 43, a large stroke pressing mode can be realized, and the switch can be pressed downward after being turned on. The contact terminal 42 is stably contacted with the lower terminal 43, and the contact pressure is not reduced due to the elastic attenuation of the contact piece, thereby affecting the contact stability.
Preferably, as shown in fig. 7, a containing cavity 32 with a downward opening is arranged at the bottom of the pressing handle 3, a rubber core 5 is arranged in the containing cavity 32, and the rubber core 5 is embedded in the containing cavity 32 and moves up and down in the containing cavity 32.
Preferably, as shown in fig. 5, a pressure spring 51 is disposed in the rubber core 5, an opening 52 is disposed at an upper end of the rubber core 5, a mounting groove 53 for placing the pressure spring 51 is disposed on an inner wall surface of a top of the accommodating cavity 32, one end of the pressure spring 51 is disposed on an inner wall of the mounting groove 53 of the rubber core 5, and the other end of the pressure spring 51 is sleeved on the boss 33 of the inner wall surface of the accommodating cavity 32.
Preferably, as shown in fig. 7, the side walls of the accommodating cavity 32 are respectively provided with a blocking portion 34, an opening 52 at the upper end of the rubber core 5 is provided with a bump 54 propped against the blocking portion 34, the lower end of the rubber core 5 passes through the blocking portion 34 of the accommodating cavity, the bump 54 at the upper end of the rubber core 5 contacts and props against the blocking portion 34, and the rubber core 5 can be embedded into the blocking portion 34 of the accommodating cavity 32 through the bump 54, so that the rubber core 5 can move up and down in the accommodating cavity 32 and cannot fall off.
Preferably, the rubber cover 2 extends downwards from the front side and the rear side to form an elastic hanging arm 22, and a bump is arranged at the lower end of the elastic hanging arm 22 to form a hanging table 221. The PCB board 1 is provided with the plug-in connection part 11 corresponding to the elastic hanging arm 22, the elastic hanging arm 22 on the rubber cover 2 can penetrate through the bottom of the PCB board 1, and the hanging table 221 on the elastic hanging arm 22 can hang the bottom of the PCB board 1, so that the key switch is fixed with the PCB board 1.
Specifically, as shown in fig. 2, when a key switch needs to be installed; the elastic hanging arm 22 is inserted into the plug-in connection 11 on the PCB 1, and the hanging table 221 on the elastic hanging arm 22 can be resisted in the plug-in connection 11, so that the rubber cover 2 can be fixed on the PCB 1. When the key switch needs to be taken out, the elastic hanging arm 22 is pressed to deform, the elastic hanging arm 22 is pressed to be close to the inner side, the hanging table 221 on the elastic hanging arm 22 is separated from and contacted with the plug-in part 11 on the PCB after being pressed, and the key switch is taken out. The elastic hanging arm 22 has elasticity, and can not easily loosen or fall off when the key switch is inserted and pulled, and can adopt a key pulling device to inwards squeeze and pull out the key switch from the two hanging platforms 221, so that the key switch can be quickly disassembled and replaced, and the efficiency of replacing the key switch is improved.
Preferably, as shown in fig. 2, the base 4 is further provided with a spring 44, a contact terminal 42 and a lower terminal 43. The contact terminal 42 and the lower terminal 43 are disposed on one side of the base 4 and below the rubber core 5, and the spring piece 44 is disposed on the other side of the base 4 and contacts the end face 36 of the push handle 3. Specifically, the lower terminal 43 is disposed at one end of the front side of the base 4, the contact terminal 42 is disposed at the other end of the front side of the base 4 and above the lower terminal 43, and the spring piece 44 is disposed at the rear side of the base 4 and contacts one side surface of the push handle 3. The handle 3 moves downwards to drive the rubber core 5 to move downwards together, when the rubber core moves to a certain stroke, the bottom surface of the rubber core 5 contacts with the contact terminal 42 below and continues to move downwards, because the elastic force of the pressure spring 51 in the rubber core 5 is larger than that of the contact terminal 42, the contact terminal 42 is pressed to move downwards until the contact point of the contact terminal 42 and the contact point of the lower terminal 43 contact, at the moment, the contact terminal 42 and the lower terminal 43 are clung, the pressure spring 51 in the rubber core 5 is propped, and the rubber core 5 cannot move downwards continuously.
Preferably, as shown in fig. 2, the contact terminal 42 is provided with a first terminal 421 at the bottom and a second terminal 431 at the bottom of the lower terminal 43. The PCB board 1 is provided with two metal clips 10, and the metal clips 10 are respectively arranged at positions corresponding to the first terminal 421 and the second terminal 431. The first terminal 421 on the contact terminal 42 and the second terminal 431 on the lower terminal 43 can be inserted into the metal clip 10 fixed on the PCB board 1 through the base 4, and the first terminal 421 and the second terminal 431 can be stably contacted with the metal clip 10 on the PCB board 1, thereby realizing the connection of the circuit.
Preferably, a plurality of buckles 45 are arranged on two side walls of the base 4, buckle grooves 23 matched with the buckles 45 are arranged on the front side wall and the rear side wall of the rubber cover, and the base 4 is connected with the rubber cover 2 through the buckles 45 and the buckle grooves 23.
Preferably, the guide post 35 is provided in the mounting hole 31 at the bottom of the push handle 3, the guide hole 46 corresponding to the guide post 35 is provided on the positioning post 41, and the guide post 35 extends into the guide hole 46 and moves up and down along the guide hole 46. The positioning column 41 can fix the spring 6 between the rubber cover 2 and the base 4, and the guiding column 35 can fix the spring 6 more firmly, i.e. the spring 6 is not easy to deviate when expanding and contracting.
The invention has small volume, more convenient use, more flexible disassembly and replacement, and the key switch can be respectively inserted into the metal clips on the PCB through the two terminals, so that the key switch is elastically contacted with the metal clips, and the connection of a circuit is realized. And the rubber core is arranged in the pressing handle, so that the stroke of the key is increased, and the stability and the conveying effect of the stroke of the key and the contact of the contact piece are improved.
The foregoing description is only of the preferred embodiments of the invention, and the above-described embodiments are not intended to limit the invention. Various changes and modifications may be made within the scope of the technical idea of the present invention, and any person skilled in the art may make any modification, modification or equivalent substitution according to the above description, which falls within the scope of the present invention.
Claims (5)
1. The utility model provides a big stroke just has button switch of great overstroke, includes the PCB board and locates the button switch on the PCB board, its characterized in that: the key switch comprises a rubber cover, a pressing handle, a base and a rubber core; the base is connected with the rubber cover in a clamping manner, a convex slot hole is formed in the rubber cover, and the pressing handle is arranged in the convex slot hole and can move up and down along the inner wall of the convex slot hole; the base is provided with a positioning column, the bottom of the pressing handle is provided with a mounting hole matched with the positioning column, and the positioning column protrudes out of the upper end face of the base and stretches into the mounting hole corresponding to the pressing handle; a spring is arranged between the pressing handle and the base, one end of the spring is sleeved on a positioning column of the base, the other end of the spring is arranged in the mounting hole, a containing cavity with a downward opening is arranged at the bottom of the pressing handle, a rubber core is arranged in the containing cavity, the rubber core is embedded in the containing cavity and moves up and down in the containing cavity, a pressure spring is arranged in the rubber core, the upper end of the rubber core is opened and provided with a mounting groove for placing the pressure spring, a boss is arranged on the inner wall surface of the top of the containing cavity, one end of the pressure spring is arranged on the inner wall of the mounting groove of the rubber core, the other end of the pressure spring is sleeved on the boss of the inner wall surface of the containing cavity, and a spring piece, a contact terminal and a lower terminal are also arranged on the base; the contact terminal and the lower terminal are arranged on one side of the base and below the rubber core, the elastic sheet is arranged on the other side of the base and is in contact with the end face of the pressing handle, a first terminal is arranged at the bottom of the contact terminal, and a second terminal is arranged at the bottom of the lower terminal; two metal clips are arranged on the PCB, and the metal clips are respectively arranged at positions corresponding to the first terminal and the second terminal; the first terminal on the contact terminal and the second terminal on the lower terminal can be inserted into a metal clip welded and fixed on the PCB through the base.
2. A large travel and over travel key switch according to claim 1 wherein: the side wall of the accommodating cavity is respectively provided with a blocking part, the opening at the upper end of the rubber core is provided with a lug which is propped against the blocking part, the lower end of the rubber core passes through the blocking part of the accommodating cavity, the lug at the upper end of the rubber core is contacted and propped against the blocking part, and the rubber core is limited in the blocking part of the accommodating cavity through the lug.
3. A large travel and over travel key switch according to claim 1 wherein: the front side and the rear side of the rubber cover extend downwards to form elastic hanging arms, and the lower ends of the elastic hanging arms are provided with a bump to form a hanging table; the PCB is provided with an inserting part corresponding to the elastic hanging arm, the elastic hanging arm on the rubber cover can penetrate through the bottom of the PCB, and the hanging table on the elastic hanging arm can hang the bottom of the PCB, so that the key switch is fixed with the PCB.
4. A large travel and over travel key switch according to claim 1 wherein: the base is characterized in that a plurality of buckles are arranged on two side walls of the base, buckle grooves matched with the buckles are formed in the rubber cover, and the base is connected with the rubber cover through the buckles and the buckle grooves.
5. A large travel and over travel key switch according to claim 1 wherein: the installation hole at the bottom of the pressing handle is internally provided with a guide post, the positioning post is provided with a guide hole corresponding to the guide post, and the guide post is embedded in the guide hole and moves up and down along the guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589978.XA CN109285709B (en) | 2017-07-19 | 2017-07-19 | Large-stroke key switch with larger over-stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710589978.XA CN109285709B (en) | 2017-07-19 | 2017-07-19 | Large-stroke key switch with larger over-stroke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109285709A CN109285709A (en) | 2019-01-29 |
| CN109285709B true CN109285709B (en) | 2024-03-22 |
Family
ID=65184874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710589978.XA Active CN109285709B (en) | 2017-07-19 | 2017-07-19 | Large-stroke key switch with larger over-stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109285709B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786155B (en) * | 2019-03-20 | 2020-03-20 | 东莞市热动电子科技有限公司 | Coding type key with adjustable conduction stroke |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201311861Y (en) * | 2008-11-13 | 2009-09-16 | 东莞市凯华电子有限公司 | Key switches |
| CN104505292A (en) * | 2014-11-19 | 2015-04-08 | 余正明 | Long stroke keyboard switch |
| CN205028825U (en) * | 2015-09-28 | 2016-02-10 | 浙江明哲电子科技有限公司 | Take keyboard switch of leaded light device |
| CN207217350U (en) * | 2017-07-19 | 2018-04-10 | 惠州同发宝微控科技有限公司 | A kind of big stroke and there is the key switch of larger overtravel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9640346B2 (en) * | 2015-09-11 | 2017-05-02 | Dongguan Zen-tech Electronic Technology Co., Ltd. | Keyboard |
-
2017
- 2017-07-19 CN CN201710589978.XA patent/CN109285709B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201311861Y (en) * | 2008-11-13 | 2009-09-16 | 东莞市凯华电子有限公司 | Key switches |
| CN104505292A (en) * | 2014-11-19 | 2015-04-08 | 余正明 | Long stroke keyboard switch |
| CN205028825U (en) * | 2015-09-28 | 2016-02-10 | 浙江明哲电子科技有限公司 | Take keyboard switch of leaded light device |
| CN207217350U (en) * | 2017-07-19 | 2018-04-10 | 惠州同发宝微控科技有限公司 | A kind of big stroke and there is the key switch of larger overtravel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109285709A (en) | 2019-01-29 |
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