CN204178987U - A kind of Long travel keyboard switch - Google Patents
A kind of Long travel keyboard switch Download PDFInfo
- Publication number
- CN204178987U CN204178987U CN201420695871.5U CN201420695871U CN204178987U CN 204178987 U CN204178987 U CN 204178987U CN 201420695871 U CN201420695871 U CN 201420695871U CN 204178987 U CN204178987 U CN 204178987U
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- pressing piece
- movable terminal
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- terminal
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- 238000005452 bending Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 10
- 239000012634 fragment Substances 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 210000002683 foot Anatomy 0.000 description 22
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000881 depressing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
A kind of Long travel keyboard switch, comprise upper cover, base, fixed terminal, movable terminal and pressing piece, a guide pillar is provided with in the middle part of described base, pressing piece is installed to and is socketed with on the guide pillar of back-moving spring, fixed terminal and movable terminal are arranged at the side of pressing piece in cavity, and fixed terminal all passes base with one end of movable terminal and is connected with external circuit; Described pressing piece extends a projection to movable terminal direction, be provided with multiple position-limit foot for pressing piece location bottom described pressing piece, described base is being provided with position-limit foot and protruding corresponding position quantity and position-limit foot and projection quite pass base bore for position-limit foot and projection.The utility model is by setting up bore, pressing piece is when being pressed, position-limit foot and project through bore and pass base, add key stroke when pressing piece is pressed, the feel of button is improve under the prerequisite making Long travel keyboard switch can do more frivolous, and its structure is simple, cost is lower, improves enterprise's productivity effect.
Description
Technical field
The utility model relates to a kind of electronic switch, particularly a kind of Long travel keyboard switch.
Background technology
A lot of action needs of existing equipment use key switch as input medium, and key switch quality determines the experience of input equipment, need to ensure good feel and useful life.
The movable contact spring adopting sheet metal to make in existing key switch mostly is has flexible structure by bending formation.This movable contact spring realizes dynamic touching primarily of the kink formation elasticity that one is located at bottom, but, because keyboard or other mechanical switch input equipments are more and more paid attention to lightening now, if arrange bending by top or bottom to form elasticity, then because need to pursue good feel, again for fear of the strength problem of sheet metal, reserved certain height is needed to realize bending, product is not easy to do more lightening, even if do more frivolous, because frivolous rear key journey deficiency also can cause the variation of feel, and this movable contact spring structure is comparatively complicated, production cost is also higher.
Utility model content
In view of this, the utility model needs the problem solved to be: provide one more easily to realize frivolous, good hand touch, life-span good, and the Long travel keyboard switch that structure is simple, manufacturing cost is lower.
In order to solve the problem, the utility model is by the following technical solutions: a kind of Long travel keyboard switch, comprise upper cover, base, fixed terminal, movable terminal and pressing piece, a guide pillar is provided with in the middle part of described base, pressing piece is installed to and is socketed with on the guide pillar of back-moving spring, upper cover is exposed for pressing in upper end, upper cover and base fasten in it and form a cavity, fixed terminal and movable terminal are arranged at the side of pressing piece in cavity, and fixed terminal all passes base with one end of movable terminal and is connected with external circuit; Described pressing piece extends at least one projection to movable terminal direction, contact with the other end of fixed terminal by protruding movable terminal action and then the control movable terminal of driving and disconnect when pressing piece moves up and down, be provided with multiple when upwards resetting for pressing piece and the spacing position-limit foot of upper cover bottom described pressing piece, described base is being provided with quantity and position-limit foot and projection quite for dodging groove or the shrinkage pool of position-limit foot and projection with position-limit foot and protruding corresponding position.
Described position-limit foot from pressing piece sidewall or corner outwardly.
Described movable terminal is a dynamic tactile shell fragment, comprise the stiff end and fixed terminal moving contact end opposing upper and lower that integrally connect and the elastic bending part be connected between stiff end and moving contact end, described stiff end vertically passes base for connecting outside line, moving contact end is positioned at fixed contact and rectifies top, moving up and down to drive movable terminal action and then control the moving contact end of movable terminal and to contact with fixed terminal and to disconnect by pressing piece.
Movable terminal also comprises the protuberance matched with projection, and described protruding parts is on moving contact end, and protuberance is pressed, and whether part is protruding lifts moving up and down and then disconnecting with fixed contact end or contact of the moving contact end realizing movable terminal.
Described stiff end is provided with through hole, is covered with reference column on described, and the through hole that described reference column is riveted on stiff end realizes the fixing of movable terminal and upper cover.
Described movable terminal comprises integrated moving contact end 43 and fixed part, movable terminal is fixed on base one side of fixed terminal front end by described fixed part, described fixed part extends moving contact end 43 from a lateral buckling, and described moving contact end 43 is parallel to fixed part.
Described movable terminal comprises installation portion and fixed contact end, and described installation portion is provided with through hole, and movable terminal realizes fixing by being received by through hole cover bottom guide pillar, and described fixed contact end is bending perpendicular to base bottom from installation portion one end,
Described protruding front end has domatic; Described movable terminal comprises the pusher arm that at least two bendings are extended, described pusher arm is arranged on two ends, left and right bottom moving contact end 43, position and pressing piece are protruding relative, and pressing piece promotes contact or the disconnection of movable terminal and fixed terminal by pusher arm and the domatic interaction of projection.
Described base comprises one and leans against base while for the fixing dynamic mounting groove touching portion, and the described dynamic fixed part touching portion laterally embeds and is fixed in mounting groove.
Described moving contact end is provided with moving contact, and the fixed contact end of described fixed terminal is provided with fixed contact, and described moving contact and fixed contact are column structure, and Relative vertical is arranged.
Compared with prior art, the utility model has following beneficial effect:
(1) in described switch, base is provided with escape groove or hole with pressing piece position-limit foot and protruding opposite position, pressing piece is when being pressed, position-limit foot and projection can enter escape groove or hole on base, the stroke making pressing piece downward does not limit by base thickness, provides conveniently for increase pressing stroke and feel; The feel of button is improve under the prerequisite making Long travel keyboard switch can do more frivolous;
(2) the be pressed lift effect of part projection and the tip side of fixed terminal of movable terminal disconnects, the elastic reset direction of movable terminal contacts with the tip side of fixed terminal, and this design can ensure the good contact of fixed terminal and movable terminal when switch press;
(3) described construction of switch is relatively simple, and cost is lower, improves enterprise's productivity effect.
Accompanying drawing explanation
Fig. 1 is the overall structure exploded perspective view of Long travel keyboard switch embodiment 1 described in the utility model;
Fig. 2 is the base bottom structural representation of Long travel keyboard switch embodiment 1 described in the utility model;
Fig. 3 is movable terminal and the fixing terminal structure schematic diagram of Long travel keyboard switch embodiment 1 described in the utility model;
Fig. 4 is assembled state 1 cut-away view of Long travel keyboard switch embodiment 1 described in the utility model;
Fig. 5 is assembled state 2 cut-away view of Long travel keyboard switch embodiment 1 described in the utility model;
Fig. 6 is the overall structure exploded perspective view of Long travel keyboard switch embodiment 2 described in the utility model;
Fig. 7 is the movable terminal structural representation of Long travel keyboard switch embodiment 2 described in the utility model;
Fig. 8 is the assembled state structural representation of Long travel keyboard switch embodiment 2 described in the utility model;
Fig. 9 is the assembled state cut-away view of Long travel keyboard switch embodiment 2 described in the utility model;
Figure 10 is cutaway view after the assembling of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1, Long travel keyboard switch described in the utility model comprises upper cover 1, base 2, pressing piece 5, back-moving spring 6, movable terminal 4 and fixed terminal 3, this upper cover 1 periphery arranges multiple button hole 11, and base 2 place corresponding with upper cover 1 button hole 11 is provided with screens 22, upper cover 1 can be fastened with coordinating of screens 22 by button hole 11 with base 2, forms the cavity that places pressing piece 5, back-moving spring 6, movable terminal 4 and fixed terminal 3 after fastening in the middle of upper cover 1 and base 2.This base 2 is provided with guide pillar 21, and guide pillar 21 bottom is extended bottom base 2, is provided with guide hole in the middle of guide pillar 21.And this pressing piece 5 bottom is provided with backstay, pressing piece 5 is by penetrating guide hole by backstay, coordinate the back-moving spring 6 between pressing piece 5 and base 2 can realize depressing and upspring, four position-limit foots 52 are also provided with bottom pressing piece 5, guide groove is provided with between four edges and base 2, when pressing piece 5 is pressed or act on reset by back-moving spring 6, pressing piece 5 position-limit foot 52 moves up and down along guide groove, stop when running to position-limit foot and upper cover is inconsistent, pressing piece 5 is made to be unlikely to detach upper cover, pressing piece 5 top passes upper cover 1 to connect outside keycap, pressing piece 5 is also provided with a projection 51, this projection 51 is arranged on the left end of pressing piece 5.
As shown in figs. 2 and 10, base is provided with 5 bore 25 on the relevant position of pressing piece 5 protruding 51 and position-limit foot 52, this position-limit foot 52 is from pressing piece 5 four angle downward-extensions and outside horizontal curved folds L-type structure, and the size of bore 25 and position-limit foot 52 and quite protruding, be convenient to protruding 51 and position-limit foot 52 pass from bore 25, increase key stroke under being conducive to the prerequisite doing enough frivolous at Long travel keyboard switch, improve handfeel of keys.
As shown in Figure 3, this movable terminal 4 is a dynamic tactile shell fragment, on horizontal base 2 before guide pillar 21, comprise the fixed part 41 for fixing that one connects, and fixed terminal 3 moving contact end 43 opposing upper and lower and the elastic bending part 42 be connected between fixed part 41 and moving contact end 43, fixed part 41 one end passes weld part 40 base 2 and is connected with external circuit, the other end connects elastic bending part 42, pushing part 431 is provided with by pressing piece 5 one end at moving contact end 43, this pushing part 431 is square, be close to the top of pressing piece 5 projection 51, when pressing piece 5 moves up and down, protruding 51 can control moving contact end 43 moves up and down, and then realize the contact of moving contact end 43 and fixed terminal 3.This fixed part 41 is fixed on the left side of base 2 before guide pillar 21, and right side is moving contact end 43, and fixed terminal 3 is arranged on moving contact end 43 lower end.This fixed terminal 3 is square structure, and one end weld part 30 passes base 2 and is connected with external circuit.The place that movable terminal 4 contacts with fixed terminal 3 is respectively arranged with moving contact 432 and fixed contact 31, this moving contact 432 and fixed contact 31 are column structure, and mutually vertical, moving contact 432 and the contact effect of fixed contact 31 can be ensured like this, avoid loose contact.This elastic bending part 42 is recessed bending structure, and the bending being conducive to contact point is contacted by the fixed terminal about 3 that moving contact end 43 and opposite side are fixed on base 2 and realizes conducting.
As shown in Figure 4, fixed part 41 is also provided with through hole 411, upper cover 1 is provided with reference column 12, the through hole 411 that reference column 12 is riveted on fixed part 41 realizes movable terminal 4 to be fixed on upper cover reference column 12, facilitate the assembling of movable terminal, and one end of elastic bending part 42 is fixed, tip side shake when can prevent switch motion, reduces the power of pressing piece lift terminal simultaneously.
As shown in Figure 5, during use, when pressing piece 5 is pressed, the backstay of pressing piece 5 down moves along guide pillar 21 guide hole of base 2, back-moving spring 6 is extruded, the pushing part 431 of movable terminal 4 can be close to protruding 51 under the elasticity of elastic bending part 42, and follow protruding 51 and move down, when movable terminal 4 moves down to a certain extent, position-limit foot 52 on pressing piece 5 and protruding 51 passes base 2 from bore 25, moving contact end 43 moving contact 432 on movable terminal 4 contacts with the fixed contact 31 in its underpart, be connected to the circuit turn-on of movable terminal 4 and fixed terminal 3, produce a pressing signal, when removing the power of pressing after pressing piece 5 presses, because the returning elastic of back-moving spring 6, a power is up applied to pressing piece 5, at this moment pressing piece 5 projection 51 also can up boost, because pushing part 431 is arranged on protruding 51 tops, the moving contact end 43 of movable terminal 4 up can be pushed open, now movable terminal 4 can disconnect with fixed terminal 3 and contacting, and returns to the position before pressing.
Embodiment 2
As shown in Figure 1, Long travel keyboard switch described in the utility model comprises upper cover 1, base 2, pressing piece 5, back-moving spring 6, movable terminal 4 and fixed terminal 3, this upper cover 1 periphery arranges multiple button hole 11, and base 2 place corresponding with upper cover 1 button hole 11 is provided with screens 22, upper cover 1 can be fastened with coordinating of screens 22 by button hole 11 with base 2, forms the cavity that places pressing piece 5, back-moving spring 6, movable terminal 4 and fixed terminal 3 after fastening in the middle of upper cover 1 and base 2.This base 2 is provided with guide pillar 21, and guide pillar 21 bottom is extended bottom base 2, is provided with guide hole in the middle of guide pillar 21.And this pressing piece 5 bottom is provided with backstay, pressing piece 5 is by penetrating guide hole by backstay, coordinate the back-moving spring 6 between pressing piece 5 and base 2 can realize depressing and upspring, four position-limit foots 52 are also provided with bottom pressing piece 5, guide groove is provided with between four edges and base 2, when pressing piece 5 is pressed or act on reset by back-moving spring 6, pressing piece 5 position-limit foot 52 moves up and down along guide groove, pressing piece 5 top passes upper cover 1 to connect outside keycap, pressing piece 5 is also provided with a projection 51, and this projection 51 is arranged on the left end of pressing piece 5.Preferably, base 2 is also provided with the fixing press strip 7 installed for button, and this fixing press strip 7 one-tenth " door " font, passes from two ends, base 2 left and right, base 2 and keyboard is connected and fixed.
As embodiment 1, the base of this embodiment 2 is provided with 5 bore 25 on the relevant position of pressing piece 5 protruding 51 and position-limit foot 52, this position-limit foot 52 is from pressing piece 5 four angle downward-extensions and outside horizontal curved folds L-type structure, and the size of bore 25 and position-limit foot and quite protruding, be convenient to protruding 51 and position-limit foot 52 pass from bore 25, increase key stroke under being conducive to the prerequisite doing enough frivolous at Long travel keyboard switch, improve handfeel of keys.
In embodiment 2, fixed terminal 3 and movable terminal are fixed on base 2, and wherein, fixed terminal 3 comprises the weld part be welded and fixed with external circuit, the fixed contact end 33 fixed terminal 3 being fixed on the installation portion 32 on guide pillar 21 and contacting with movable terminal 4.The through hole that guide pillar 21 can be allowed to pass is provided with in the middle of installation portion 32, fixed terminal 3 is socketed on guide pillar 21 by the through hole on installation portion 32, and fixed contact end 33 is bent upwards perpendicular to bottom base 2 from installation portion 32 one end, fixed contact end 33 is established the contact for contacting with moving contact end 43.Preferably, moving contact end 43 is provided with moving contact, and the fixed contact end 33 of described fixed terminal 3 is provided with fixed contact, and described moving contact and fixed contact are column structure, and Relative vertical is arranged.
As shown in Figure 7, movable terminal 4 comprises the moving contact end 43 that stiff end 41 that one connects and the part 5 that is pressed protruding 51 promote to contact with fixed terminal 3, stiff end 41 extends moving contact end 43 from a lateral buckling, the face that this moving contact end 43 is formed is parallel to the face of stiff end 41, forms the U-shaped structure of laterally placing.This base 2 is provided with one and leans against base 2 while for the mounting groove of fixing movable terminal 4, and stiff end 41 laterally embeds and is fixed in mounting groove, because it leans against on base 2, contributes to stable movable terminal 4, movable terminal 4 is not easily swung.Concrete, moving contact end 43 is provided with the protuberance 431 that at least two bendings are extended, this protuberance 431 is arranged on the two ends, left and right bottom moving contact end 43, position is relative with pressing piece 5 projection 51, pressing piece 5 promotes protuberance 431 by projection 51 is domatic, realizes contact or the disconnection of movable terminal 4 and fixed terminal 3.Preferably, this protuberance 431 tilts to the bending of stiff end 41 direction, and the angle of bending is suitable with the domatic angle of pressing piece 5, protuberance 431 and protruding 51 is adjacent to domatic, contribute to like this reducing the resistance between protruding 51 and protuberance 431, extend the useful life of switch.
As shown in Figure 8, upper cover 1 and base 2 fasten rear formation entirety, and pressing piece 5 stretches out from upper cover 1.And figure below can find out that fixed terminal 3 fixed terminal weld part 30 and the movable terminal weld part 40 of movable terminal 4 expose base 2 outside, this weld part 30,40 is connected with external circuit respectively, also comprise fixing press strip 7, this fixing press strip 7 exposes two ends, for being fixed on keyboard.This base 2 also comprises two erection columns 24, locates for Long travel keyboard switch.
As shown in Figure 9, during use, when pressing piece 5 is pressed, the backstay of pressing piece 5 down moves along guide pillar 21 guide hole of base 2, back-moving spring 6 is extruded, moving contact end 43 protuberance 431 that the domatic meeting of projection 51 of pressing piece 5 againsts movable terminal 4 moves down, position-limit foot 52 on pressing piece 5 and protruding 51 passes base 2 from bore 25, moving contact end 43 is because lose the power that pressing piece 5 projection 51 supports, moved forward by the elastic force produced after sheet metal bending, finally contact with fixed terminal 3, be connected to the circuit turn-on of movable terminal 4 and fixed terminal 3, produce a pressing signal, when removing the power of pressing after pressing piece 5 presses, because the returning elastic of back-moving spring 6, pressing piece 5 applies a power up, at this moment pressing piece 5 projection 51 also can up boost, because domatic effect, the moving contact end 43 of movable terminal 4 can be pushed open backward, now movable terminal 4 can disconnect with fixed terminal 3 and contacting, return to the position before pressing, disconnect pressing signal.
Above-described embodiment is only preferably implementation of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection range of the present utility model.
Claims (10)
1. a Long travel keyboard switch, comprise upper cover (1), base (2), fixed terminal (3), movable terminal (4) and pressing piece (5), described base (2) middle part is provided with a guide pillar (21), pressing piece (5) be installed to be socketed with back-moving spring guide pillar (21) on, upper cover (1) is exposed for pressing in upper end, upper cover (1) and base (2) fasten in it and form a cavity, fixed terminal (3) and movable terminal (4) are arranged at the side of pressing piece in cavity, fixed terminal (3) and one end of movable terminal (4) all pass base (2) and are connected with external circuit, described pressing piece (5) extends at least one projection (51) to movable terminal (4) direction, drive movable terminal (4) action by protruding (51) and then control movable terminal (4) when pressing piece (5) moves up and down and contact with the other end of fixed terminal (3) and disconnect, it is characterized in that: be provided with multiple when upwards resetting for pressing piece and the spacing position-limit foot of upper cover bottom described pressing piece, described base (2) is provided with groove for dodging position-limit foot and projection or shrinkage pool in the position corresponding with position-limit foot and projection (51).
2. Long travel keyboard switch according to claim 1, is characterized in that: described position-limit foot from pressing piece sidewall or corner outwardly.
3. Long travel keyboard switch according to claim 1, it is characterized in that: described movable terminal (4) is a dynamic tactile shell fragment, comprise the stiff end (41) that one connects, and fixed terminal (3) moving contact end (43) opposing upper and lower and the elastic bending part (42) be connected between stiff end (41) and moving contact end (43), described stiff end (41) vertically passes base (2) for connecting outside line, moving contact end (43) is positioned at fixed contact and rectifies top, contact by the moving contact end (43) driving movable terminal (4) action and then control movable terminal (4) that moves up and down of pressing piece (5) with fixed terminal (3) and disconnect.
4. Long travel keyboard switch according to claim 3, it is characterized in that: movable terminal (4) also comprises the protuberance (431) matched with protruding (51), described protuberance (431) is positioned on moving contact end (43), and whether protuberance (431) the part projection (51) that is pressed lifts moving up and down of the moving contact end (43) realizing movable terminal (4) and then disconnect with fixed contact end or contact.
5. Long travel keyboard switch according to claim 3, it is characterized in that: described stiff end (41) is provided with through hole (411), described upper cover (1) is provided with reference column, and the through hole (411) that described reference column is riveted on stiff end (41) realizes the fixing of movable terminal (4) and upper cover.
6. Long travel keyboard switch according to claim 1, it is characterized in that: described movable terminal (4) comprises integrated moving contact end (43) and stiff end (41), movable terminal (4) is fixed on base (2) one side of fixed terminal (3) front end by described stiff end (41), described stiff end (41) extends moving contact end (43) from a lateral buckling, and described moving contact end (43) is parallel to stiff end (41).
7. Long travel keyboard switch according to claim 6, it is characterized in that: described movable terminal (3) comprises installation portion (32) and fixed contact end (33), described installation portion (32) is provided with trepanning, movable terminal (3) realizes fixing by trepanning cover being received guide pillar (21) bottom, and described fixed contact end (33) is bending perpendicular to base (2) bottom from installation portion (32) one end.
8. according to the Long travel keyboard switch one of claim 1 and 7 Suo Shu, it is characterized in that: described projection (51) front end has domatic; Described movable terminal (4) comprises the protuberance (431) that at least two bendings are extended, described protuberance (431) is arranged on two ends, left and right, moving contact end (43) bottom, position is relative with pressing piece (5) protruding (51), and pressing piece (5) promotes contact or the disconnection of movable terminal (4) and fixed terminal (3) by the interaction that protuberance (431) is domatic with protruding (51).
9. Long travel keyboard switch according to claim 8, it is characterized in that: described base (2) comprises one and leans against base for the fixing dynamic mounting groove (23) touching portion (4), and the described dynamic stiff end (41) touching portion (4) laterally embeds and is fixed in mounting groove (23).
10. Long travel keyboard switch according to claim 1, it is characterized in that: described moving contact end (43) is provided with moving contact (432), the fixed contact end (33) of described fixed terminal (3) is provided with fixed contact (34), described moving contact (432) and fixed contact (31) are column structure, and Relative vertical is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695871.5U CN204178987U (en) | 2014-11-19 | 2014-11-19 | A kind of Long travel keyboard switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695871.5U CN204178987U (en) | 2014-11-19 | 2014-11-19 | A kind of Long travel keyboard switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204178987U true CN204178987U (en) | 2015-02-25 |
Family
ID=52567774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420695871.5U Withdrawn - After Issue CN204178987U (en) | 2014-11-19 | 2014-11-19 | A kind of Long travel keyboard switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204178987U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505292A (en) * | 2014-11-19 | 2015-04-08 | 余正明 | Long stroke keyboard switch |
| CN105990072A (en) * | 2016-05-06 | 2016-10-05 | 厦门宏发开关设备有限公司 | Contact support reaction spring installing structure and assembling method |
-
2014
- 2014-11-19 CN CN201420695871.5U patent/CN204178987U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505292A (en) * | 2014-11-19 | 2015-04-08 | 余正明 | Long stroke keyboard switch |
| CN104505292B (en) * | 2014-11-19 | 2017-12-12 | 余正明 | A kind of long stroke keyboard switch |
| CN105990072A (en) * | 2016-05-06 | 2016-10-05 | 厦门宏发开关设备有限公司 | Contact support reaction spring installing structure and assembling method |
| CN105990072B (en) * | 2016-05-06 | 2018-11-13 | 厦门宏发开关设备有限公司 | A kind of contact supports reaction spring mounting structure and assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170522 Address after: Seven road 516023 in Guangdong province Huizhou city Huicheng District Xiaojinkou Jinshi No. 288 Patentee after: Huizhou Trantek Electronics Co., Ltd. Address before: Huicheng District Xiaojinkou stone seven road 516000 Guangdong city in Huizhou Province, Huizhou City, No. 288 Patentee before: Yu Zhengming |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150225 Effective date of abandoning: 20171212 |