CN207217350U - A kind of big stroke and there is the key switch of larger overtravel - Google Patents
A kind of big stroke and there is the key switch of larger overtravel Download PDFInfo
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- CN207217350U CN207217350U CN201720876439.XU CN201720876439U CN207217350U CN 207217350 U CN207217350 U CN 207217350U CN 201720876439 U CN201720876439 U CN 201720876439U CN 207217350 U CN207217350 U CN 207217350U
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- key switch
- base
- handle
- terminal
- glue
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Abstract
The utility model discloses a kind of big stroke and there is the key switch of larger overtravel simultaneously, including pcb board and the key switch on pcb board, key switch include Jiao Gai, handle, base and glue core.Base is connected with Jiao Gai by way of clamping, and glue is covered provided with a convex slotted eye, and handle is arranged in convex slotted eye and can be up and down along convex slotted eye inwall.Base is provided with locating dowel, and handle bottom is provided with the mounting hole coordinated with locating dowel, and locating dowel protrudes from base upper surface and stretched into corresponding to the handle in mounting hole.A spring is provided between handle and base, one end of spring is sheathed in the locating dowel of base, and the other end of spring is located in mounting hole.The utility model small volume, using it is more convenient, dismounting and change is more flexible, and by being provided with glue core in handle, the stroke of button is increased, improve stabilization and transmit effect that the stroke of button and contact chip contact.
Description
Technical field
It the utility model is related to key switch technical field, more particularly to a kind of big stroke and there is larger overtravel simultaneously
Key switch.
Background technology
With the development of science and technology, increasing electronic equipment uses in the life of people, it can be common that is set with electronics
The mechanical keyboard that standby collocation uses, the mechanical keyswitch switched as metal material contact that common mechanical keyboard uses,
Mainly by metal material contact, the disconnection of mechanical switch is realized.And traditional optical axis mechanical key be by luminescent crystal transmitting and
Reception device is arranged in key switch, and bottom legs are welded on pcb board, and then key switch is fastened in neck, most
Pcb board and iron plate are fixed by the fixed column rotated on iron plate afterwards, once which results in the damage of some button, it is desirable to dismantle
Maintenance just unusual trouble, not only needs to turn on fixed column, while needs luminescent crystal reception device and emitter from pcb board
On pull up, processing is difficult very big, but also easilys lead to the damage of button.
In general mechanical key realizes the switch of button by way of pressing；By way of upper and lower pressing, allow,
The termination contact at lower both ends is provided with connector among the terminal of upper/lower terminal, is pressed by handle in upper and lower terminal
Between connector, realize the switch of button, such as touch-switch allows upper and lower termination contact (such as microswitch, touch-switch), but
It is that the total stroke of this type mechanical key is very short, and uses, after lower terminal contact, handle can not continues to move downward, it is impossible to real
Now big stroke and larger overtravel pressing mode, wherein, larger overtravel refer to switch after switch can also down by
Pressure.
【Utility model content】
The purpose of this utility model is effectively to overcome the shortcomings of above-mentioned technology, there is provided a kind of to realize to button progress soon
While speed is changed, there is big stroke and have the key switch of larger overtravel.
To use following technical scheme up to this purpose, the utility model：A kind of big stroke and there is larger overtravel simultaneously
Key switch, including pcb board and the key switch on pcb board, the key switch includes Jiao Gai, handle, base
And glue core；The base is connected with Jiao Gai by way of clamping, and the glue covers to be set provided with a convex slotted eye, the handle
It is placed in convex slotted eye and can be up and down along convex slotted eye inwall；The base is provided with locating dowel, and the handle bottom is set
There is the mounting hole coordinated with locating dowel, the locating dowel protrudes from base upper surface and stretches into mounting hole corresponding to the handle
It is interior；A spring is provided between the handle and base, one end of the spring is sheathed in the locating dowel of base, spring it is another
End is located in mounting hole.
Further, the handle bottom is provided with an accommodating cavity that Open Side Down, and glue core is provided with the accommodating cavity, described
Glue core is flush-mounted in accommodating cavity and in being moved up and down in accommodating cavity.
Further, the glue in-core is provided with compression spring, the glue core upper end open and provided with being used to place the pressure
The mounting groove of power spring, the top inner wall face of the accommodating cavity are provided with a boss, and one end of the compression spring is located in described
On the inwall of glue core mounting groove, the other end of compression spring is sheathed on the boss of the accommodating cavity internal face.
Further, be respectively equipped with stop part in the accommodating cavity side wall, be provided with the glue core upper end open with it is described
The projection that stop part is supported, the lower end of the glue core pass through the stop part of the accommodating cavity, the projection and stop part of glue core upper end
Contact is offseted, and the glue core is limited in the stop part of accommodating cavity by projection.
Further, the Jiao Gai front and rear sides are downwardly extending elastic upper arm, and the elastic upper arm lower end is provided with one
Projection forms a hanging platform；The pcb board is provided with plug division corresponding with the elastic upper arm, the elastic upper arm that the glue covers
Can pass through to the bottom on the pcb board, the hanging platform in elastic upper arm can tangle the bottom of pcb board, make key switch with
Pcb board is fixed.
Further, shell fragment, contact terminal and lower terminal are additionally provided with the base；The contact terminal and lower terminal are set
In the side of the base and below the glue core, the shell fragment located at base opposite side and with the end of the handle
Face contacts.
Further, the contact terminal bottom is provided with the first terminal, and the lower terminal bottom is provided with Second terminal；It is described
Pcb board is provided with two metal holders, and the metal holder is respectively arranged on the first terminal position corresponding with Second terminal；
The Second terminal on the first terminal and lower terminal on the contact terminal is inserted into being fixedly welded on pcb board through base
On metal holder in.
Further, the base bilateral wall is provided with several buckles, and glue is covered provided with the buckle slot being engaged with buckle,
Base is connected with Jiao Gai by buckle with buckle slot.
Further, guide post is provided with the mounting hole of the handle bottom, the locating dowel is provided with and guide post pair
The bullport answered, the guide post are embedded in bullport and up and down along bullport.
The beneficial effects of the utility model are：The utility model small volume, using it is more convenient, dismounting and change is more flexible,
Key switch can be inserted respectively into the metal holder on pcb board by two terminals, make key switch and metal clip bullet
Property contact, realize the connection of circuit.And by being provided with glue core in handle, the stroke of button is increased, improves button
Contacted between stroke and contact chip stable.
【Brief description of the drawings】
Fig. 1 is the utility model overall structure embodiment schematic diagram；
Fig. 2 is that the utility model splits constructive embodiment schematic diagram；
Fig. 3 is the utility model detonation configuration embodiment schematic diagram；
Fig. 4 is the constructive embodiment schematic diagram of the utility model handle；
Fig. 5 is the constructive embodiment schematic diagram of the utility model glue core；
Fig. 6 is the constructive embodiment schematic diagram of the utility model base
Fig. 7 is cross-section structure embodiment schematic diagram of the present utility model.
In figure：Pcb board 1, glue lid 2, handle 3, base 4, glue core 5, spring 6, metal holder 10, plug division 11, convex slot
It is hole 21, elastic upper arm 22, buckle slot 23, mounting hole 31, accommodating cavity 32, boss 33, stop part 34, guide post 35, end face 36, fixed
Position post 41, contact terminal 42, lower terminal 43, shell fragment 44, buckle 45, bullport 46, compression spring 51, opening 52, mounting groove 53,
Projection 54, hanging platform 221, the first terminal 421, Second terminal 431.
【Embodiment】
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As shown in Figures 1 to 7, a kind of big stroke and there is the key switch of larger overtravel, including pcb board 1 and be located at
Key switch on pcb board 1, key switch include glue lid 2, handle 3, base 4 and glue core 5.Base 4 passes through card with glue lid 2
The mode connect connects, and glue lid 2 is provided with a convex slotted eye 21, and handle 3 is arranged in convex slotted eye 21 and can be along convex slotted eye 21
Inwall is up and down.Base 4 is provided with locating dowel 41, and the bottom of handle 3 is provided with the mounting hole 31 coordinated with locating dowel 41, locating dowel
41 protrude from the upper surface of base 4 and stretch into corresponding to handle 3 in mounting hole 31.A spring 6, bullet are provided between handle 3 and base 4
One end of spring 6 is sheathed in the locating dowel 41 of base 4, and the other end of spring 6 is located in mounting hole 31.
Specifically, as shown in Figure 3 and Figure 4, the big stroke of the present utility model and key switch for having larger overtravel passes through
Elastic upper arm 22 is fixed on pcb board 1, and contact terminal 42 and lower terminal 43 can be plugged into and be welded on pcb board 1
Metal holder 10 in, realize the connection of circuit.Wherein, glue core 5 is embedded with the accommodating cavity 32 of the bottom of handle 3, the glue core 5 is logical
Excess pressure spring 51 can move up and down in accommodating cavity 32, i.e., the glue core 5 is arranged on the upper of contact terminal 42 and lower terminal 43
Side, handle 3, which moves downward, drives glue core 5 to move downwardly together, when moving to certain stroke, the bottom surface of glue core 5 and lower section
Contact terminal 42 contacts, and continues to move downward, because the elastic force of the internal pressure spring 51 of glue core 5 is more than the bullet of contact terminal 42
Power, contact terminal 42, which is pressurized, to be moved downward up to the contact of contact terminal 42 and the contact of lower terminal 43, now, contact jaw
Son 42 and lower terminal 43 are close to, and the compression spring 51 in glue core 5 is withstood, and glue core 5 can not continue to move downward.
As shown in fig. 6, being provided with a spring 6 between handle 3 and base 4, the spring 6 is sheathed in the locating dowel 41 of base 4,
The other end of spring 6 is located in the mounting hole 31 of the bottom of handle 3, wherein, is provided with guide post in the mounting hole 31 of the bottom of handle 3
35, locating dowel 41 is provided with bullport 46 corresponding with guide post 35, and guide post 35 stretches into bullport 46 and along bullport 46
It is up and down.I.e. the one end of spring 6 is set in the locating dowel 41 of base 4, and the other end of spring 6 is set in mounting hole 31
On guide post 35, and guide post 35 can extend into the bullport 46 in locating dowel 41 so that spring 6 can be fixed firmly
Between glue lid 2 and base 4, spring 6 is also not easy sideslip day when stretching.So it can not continue to move downward when glue core 5 is withstood
When, handle 3 still can continue to move downward by spring 6, until spring 6 is compressed to the limit, handle 3 is kept out on base 4, this
When contact terminal 42 remain in that and contact with lower terminal 43.The total stroke of key switch i.e. of the present utility model is big, contact terminal
42 contacted with lower terminal 43 after may continue to move downward, big stroke pressing mode can be realized, and switch after switch also
Can down it press.Contact terminal 42 contacts stabilization with lower terminal 43, will not cause contact because of the elastic extenuation of contact chip
Reduce, and then influence contact stabilization.
Preferably, as shown in fig. 7, the bottom of handle 3 is provided with an accommodating cavity 32 that Open Side Down, glue core is provided with accommodating cavity 32
5, glue core 5 is flush-mounted in accommodating cavity 32 and moved up and down in accommodating cavity 32.
Preferably, as shown in figure 5, being provided with compression spring 51 in glue core 5, the upper end open 52 of glue core 5 and provided with for placing
The mounting groove 53 of compression spring 51, the top inner wall face of accommodating cavity 32 are provided with a boss 33, one end of compression spring 51 be located in
On the inwall of the mounting groove 53 of glue core 5, the other end of compression spring 51 is sheathed on the boss 33 of the internal face of accommodating cavity 32.
Preferably, as shown in fig. 7, being respectively equipped with stop part 34 in the side wall of accommodating cavity 32, it is provided with the upper end open 52 of glue core 5
The projection 54 supported with stop part 34, the lower end of glue core 5 pass through the stop part 34 of accommodating cavity, projection 54 and the resistance of the upper end of glue core 5
The contact of stopper 34 is offseted, and glue core 5 can be fitted in the stop part 34 of accommodating cavity 32 by projection 54, makes glue core 5 can be accommodating
Move up and down and will not fall off in chamber 32.
Preferably, the front and rear sides of glue lid 2 are downwardly extending elastic upper arm 22, and the elastic lower end of upper arm 22 is provided with a projection shape
Into a hanging platform 221.Pcb board 1 is provided with plug division 11 corresponding with elastic upper arm 22, and the elastic upper arm 22 on glue lid 2 can be worn
Cross to the bottom on pcb board 1, the hanging platform 221 in elastic upper arm 22 can tangle the bottom of pcb board 1, make key switch and PCB
Plate 1 is fixed.
Specifically, as shown in Fig. 2 when needing to install key switch；Elastic upper arm 22 is inserted into inserting on pcb board 1
Socket part 11, the hanging platform 221 in elastic upper arm 22 can be kept out in plug division 11, glue lid 2 is fixed on pcb board 1.When
When needing to take out key switch, by bringing it about deformation by compression elasticity upper arm 22, elastic upper arm 22 is squeezed draws close to inner side,
Hanging platform 221 in elastic upper arm 22 is contacted by rear separated with the plug division 11 on pcb board is squeezed, and takes out key switch.The elasticity is hung
Arm 22 is flexible, both will not loosen or drop easily during plug key switch, and can use key puller, by two hanging platforms 221 to
Key switch is extracted in interior extruding, you can is carried out quick dismounting and change to key switch, is improved the efficiency for changing key switch.
Preferably, as shown in Fig. 2 being additionally provided with shell fragment 44, contact terminal 42 and lower terminal 43 on base 4.Contact terminal 42
And lower terminal 43 is located at the side of base 4 and positioned at the lower section of glue core 5, shell fragment 44 located at base 4 opposite side and with handle 3
End face 36 contacts.Specifically, lower terminal 43 is located at the front side one end of base 4, and contact terminal 42 is located at the front side other end of base 4 and position
Above lower terminal 43, shell fragment 44 contacts located at the rear side of base 4 and with the one side of handle 3.Handle 3, which moves downward, drives glue core 5
Move downwardly together, when moving to certain stroke, the bottom surface of glue core 5 contacts with the contact terminal 42 of lower section, and continues downward
Motion, because the elastic force of the internal pressure spring 51 of glue core 5 is more than the elastic force of contact terminal 42, contact terminal 42, which is pressurized, to be moved downward directly
To the contact of contact terminal 42 and the contact of lower terminal 43, now, contact terminal 42 and lower terminal 43 are close to, in glue core 5
Compression spring 51 withstood, glue core 5 can not continue to move downward.
Preferably, as shown in Fig. 2 the bottom of contact terminal 42 is provided with the first terminal 421, the bottom of lower terminal 43 is provided with the second end
Son 431.Pcb board 1 is provided with two metal holders 10, and metal holder 10 is respectively arranged on the first terminal 421 and the phase of Second terminal 431
On corresponding position.The Second terminal 431 on the first terminal 421 and lower terminal 43 on contact terminal 42 can through base 4
Be inserted into the metal holder 10 being fixedly welded on pcb board 1, the first terminal 421 and Second terminal 431 can with pcb board 1
Metal holder 10 be steadily contacted, realize the connection of circuit.
Preferably, the two side of base 4 is provided with several buckles 45, and Jiao Gai front and rear sides wall is provided with to match with buckle 45
The buckle slot 23 of conjunction, base 4 are connected with glue lid 2 by buckle 45 with buckle slot 23.
Preferably, guide post 35 is provided with the mounting hole 31 of the bottom of handle 3, locating dowel 41 is provided with corresponding with guide post 35
Bullport 46, guide post 35 stretches into bullport 46 and up and down along bullport 46.Wherein, locating dowel 41 can fix
Spring 6 between glue lid 2 and base 4, guide post 35 can make spring 6 fix more firm, i.e., be not easy sideslip when spring 6 stretches.
The utility model small volume, using it is more convenient, dismounting and change is more flexible, key switch can be divided by two terminals
It is not inserted into the metal holder on pcb board, makes key switch and metal holder Elastic Contact, realizes the connection of circuit.And
By being provided with glue core in handle, the stroke of button is increased, improve the stroke of button and the stabilization and biography of contact chip contact
Send effect.
Described above is only preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to the utility model
Limitation.In technological thought category of the present utility model, various modifications and modification, the ordinary skill of all this areas can occur
Retouching, modification or the equivalent substitution that personnel are made as described above, belong to the scope that the utility model is protected.
Claims (9)
1. a kind of big stroke and there is the key switch of larger overtravel, including pcb board and the key switch on pcb board,
It is characterized in that：The key switch includes Jiao Gai, handle, base and glue core；The side that the base passes through clamping with Jiao Gai
Formula is connected, and the glue is covered provided with a convex slotted eye, and the handle is arranged in convex slotted eye and can be along convex slotted eye inwall
Lower activity；The base is provided with locating dowel, and the handle bottom is provided with the mounting hole coordinated with locating dowel, and the locating dowel is dashed forward
For base upper surface and stretch into corresponding to the handle in mounting hole；A spring is provided between the handle and base, it is described
One end of spring is sheathed in the locating dowel of base, and the other end of spring is located in mounting hole.
2. a kind of big stroke according to claim 1 and there is the key switch of larger overtravel, it is characterised in that：It is described to press
Handle bottom is provided with an accommodating cavity that Open Side Down, is provided with glue core in the accommodating cavity, the glue core in accommodating cavity and in
Moved up and down in accommodating cavity.
3. a kind of big stroke according to claim 2 and there is the key switch of larger overtravel, it is characterised in that：The glue
In-core is provided with compression spring, the glue core upper end open and provided with the mounting groove for being used to place the compression spring, described accommodating
The top inner wall face of chamber is provided with a boss, and one end of the compression spring is located on the inwall of the glue core mounting groove, pressure
The other end of spring is sheathed on the boss of the accommodating cavity internal face.
4. a kind of big stroke according to claim 3 and there is the key switch of larger overtravel, it is characterised in that：The appearance
Put and stop part is respectively equipped with chamber side wall, the projection supported with the stop part, the glue are provided with the glue core upper end open
The lower end of core passes through the stop part of the accommodating cavity, and the projection of glue core upper end contacts with stop part to offset, and the glue core passes through convex
Block is limited in the stop part of accommodating cavity.
5. a kind of big stroke according to claim 1 and there is the key switch of larger overtravel, it is characterised in that：The glue
Lid front and rear sides are downwardly extending elastic upper arm, and the elastic upper arm lower end is provided with a projection and forms a hanging platform；The pcb board
Plug division corresponding with the elastic upper arm is provided with, the elastic upper arm that the glue covers can be passed through onto the pcb board
Bottom, the hanging platform in elastic upper arm can tangle the bottom of pcb board, key switch is fixed with pcb board.
6. a kind of big stroke according to claim 1 and there is the key switch of larger overtravel, it is characterised in that：The bottom
Shell fragment, contact terminal and lower terminal are additionally provided with seat；The contact terminal and lower terminal located at the side of the base and are located at
Below the glue core, the shell fragment located at base opposite side and with the end contact of the handle.
7. a kind of big stroke according to claim 6 and there is the key switch of larger overtravel, it is characterised in that：It is described to connect
The sub- bottom of contravention is provided with the first terminal, and the lower terminal bottom is provided with Second terminal；The pcb board is provided with two metal clips
Son, the metal holder are respectively arranged on the first terminal position corresponding with Second terminal；First end on the contact terminal
Second terminal on son and lower terminal is inserted into being fixedly welded in the metal holder on pcb board through base.
8. a kind of big stroke according to claim 1 and there is the key switch of larger overtravel, it is characterised in that：The bottom
Seat two side is provided with several buckles, and glue covers passes through buckle and card provided with the buckle slot being engaged with buckle, base with Jiao Gai
Catching groove connects.
9. a kind of big stroke according to claim 1 and there is the key switch of larger overtravel, it is characterised in that：It is described to press
Guide post is provided with the mounting hole of handle bottom, the locating dowel is provided with bullport corresponding with guide post, and the guide post is embedding
It is in bullport and up and down along bullport.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720876439.XU CN207217350U (en) | 2017-07-19 | 2017-07-19 | A kind of big stroke and there is the key switch of larger overtravel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720876439.XU CN207217350U (en) | 2017-07-19 | 2017-07-19 | A kind of big stroke and there is the key switch of larger overtravel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207217350U true CN207217350U (en) | 2018-04-10 |
Family
ID=61813219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720876439.XU Active CN207217350U (en) | 2017-07-19 | 2017-07-19 | A kind of big stroke and there is the key switch of larger overtravel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207217350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285709A (en) * | 2017-07-19 | 2019-01-29 | 惠州同发宝微控科技有限公司 | A kind of big stroke and the key switch for having larger overtravel |
-
2017
- 2017-07-19 CN CN201720876439.XU patent/CN207217350U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285709A (en) * | 2017-07-19 | 2019-01-29 | 惠州同发宝微控科技有限公司 | A kind of big stroke and the key switch for having larger overtravel |
| CN109285709B (en) * | 2017-07-19 | 2024-03-22 | 惠州同发宝微控科技有限公司 | Large-stroke key switch with larger over-stroke |
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