CN110838419B - Keyboard with a keyboard body - Google Patents
Keyboard with a keyboard body Download PDFInfo
- Publication number
- CN110838419B CN110838419B CN201810940045.5A CN201810940045A CN110838419B CN 110838419 B CN110838419 B CN 110838419B CN 201810940045 A CN201810940045 A CN 201810940045A CN 110838419 B CN110838419 B CN 110838419B
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- China
- Prior art keywords
- frame
- connecting shaft
- key cap
- accommodating space
- shaft
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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
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
- H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
- H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards
Abstract
The invention provides a keyboard, which comprises a bottom plate with a connecting frame, a wing type connecting element and a key cap. The first connecting shaft of the wing-type connecting element extends into the connecting frame to connect the wing-type connecting element and the bottom plate. When the key cap is pressed, the first connecting shaft extends into the first accommodating space of the connecting frame to serve as a swinging fulcrum, and the vertical movement of the wing type connecting element is limited by the first accommodating space, so that the swinging amplitude of the wing type connecting element is smaller, and therefore, the keyboard can improve the pressing stability of the key cap.
Description
Technical Field
The present invention relates to an input device, and more particularly, to a keyboard having a plurality of key structures.
Background
Common peripheral input devices for computers include mice, keyboards, trackballs, etc., wherein the keyboard can directly input characters and symbols to the computer, and therefore, the users and manufacturers of the input devices pay attention to the input devices. Among them, a keyboard including a plurality of key structures is more common.
The structure of the key structure in the keyboard will be described below, taking the key structure including the scissors-type connecting element as an example. Please refer to fig. 1, which is a schematic cross-sectional side view of a conventional key structure. The conventional key structure 1 includes a key cap 11, a scissors-type connecting element 12, an elastic rubber body 13, a membrane switch circuit 14 and a bottom plate 15, wherein the bottom plate 15 is used for carrying the key cap 11, the scissors-type connecting element 12, the elastic rubber body 13 and the membrane switch circuit 14. Wherein the scissors-type connecting element 12 is used to connect the bottom plate 15 and the key cap 11.
The scissors connecting element 12 is located between the bottom plate 15 and the key cap 11 and connects the two. Scissor linkage 12 includes a first frame 121 and a second frame 122. A first end of the first frame 121 is connected to the keycap 11, and a second end of the first frame 121 is connected to the bottom plate 15. The elastic rubber 13 is surrounded by the scissors-type connecting element 12, and the membrane switch circuit 14 has a plurality of key contacts (not shown). The key contact outputs a corresponding key signal when triggered. The elastic rubber body 13 is arranged on the membrane switch circuit 14, one elastic rubber body 13 corresponds to one key contact, and when the elastic rubber body 13 is pressed, the elastic rubber body 13 deforms and presses the corresponding key contact in the membrane switch circuit 14 to generate a key signal.
The operation of the conventional key structure 1 pressed by the user will be described next. In fig. 1, when the user presses the key cap 11, the key cap 11 is forced to push the scissors-type connecting element 12 to move, so that the key cap 11 can move downward relative to the bottom plate 15 and press the corresponding elastic rubber 13. At this time, the elastic rubber 13 deforms and presses the membrane switch circuit 14 to trigger the key contact of the membrane switch circuit 14, so that the membrane switch circuit 14 outputs a corresponding key signal. When the user stops pressing the key cap 11, the key cap 11 is no longer stressed to stop pressing the elastic rubber 13, so that the elastic rubber 13 is restored according to the elasticity thereof, and at the same time, provides an upward elastic restoring force, so that the key cap 11 is pushed back to the position before being pressed. The structure and operation of the conventional key structure are described above.
In the process of pressing the key cap 11, the first frame 121 and the second frame 122 swing along with the moving key cap, and the first frame 121 and the second frame 122 swing while swinging, so that the movement of the key cap 11 also swings and is unstable.
Therefore, a keyboard with improved touch stability is needed.
Disclosure of Invention
The invention aims to provide a keyboard capable of improving touch stability.
In a preferred embodiment, the present invention provides a keyboard, which includes a bottom plate, a wing-type connecting element and a key cap. The bottom plate is provided with at least one connecting frame, the wing type connecting element is positioned on the bottom plate and connected to the at least one connecting frame for swinging relative to the bottom plate, and the wing type connecting element comprises a first frame and a second frame. The first frame is arranged below the key cap and positioned on a first side of the key cap, the first frame is provided with a first sliding shaft, and the first sliding shaft and a first end of the first frame respectively extend into the at least one connecting frame and are connected with the bottom plate. The second frame is arranged below the key cap and positioned on a second side of the key cap, the second frame is provided with a second sliding shaft, a first end of the second frame extends into the first frame to be combined with the first frame, and the second frame is connected to the bottom plate through the first end of the first frame and the second sliding shaft. The key cap is connected to a second end of the first frame and a second end of the second frame and can move relative to the bottom plate; when the key cap is pressed, the first end of the first frame moves vertically in a first accommodating space of the at least one connecting frame.
In a preferred embodiment, the first frame includes a first connecting shaft, a second connecting shaft and a groove. The first connecting shaft is disposed on the first end of the first frame, is located outside the first end of the first frame, and is configured to extend into the first accommodating space of the at least one connecting frame. The second connecting shaft is arranged on the second end of the first frame and is used for being connected with the key cap. The groove is disposed on the first end of the first frame and inside the first end of the first frame for accommodating a first end of the second frame to combine the first frame and the second frame. The at least one connecting frame is provided with a second accommodating space which is adjacent to the first accommodating space, and the first sliding shaft is positioned between the first connecting shaft and the second connecting shaft and is close to the first sliding shaft; wherein, the first sliding shaft extends into the second accommodating space.
In a preferred embodiment, the second frame includes a third connecting shaft and a fourth connecting shaft. The third connecting shaft is disposed on the first end of the second frame and is used for extending into the groove of the first frame to combine the first frame and the second frame. The fourth connecting shaft is arranged on the second end of the second frame and is used for being connected with the key cap. The at least one connecting frame is provided with a third accommodating space which is adjacent to the first accommodating space, and the second sliding shaft is positioned between the third connecting shaft and the fourth connecting shaft and is close to the third connecting shaft; wherein, the second sliding shaft extends into the third accommodating space.
In short, the keyboard of the present invention employs wing-type connecting elements respectively connected to the bottom plate and the key caps, and combines the bottom plate and the wing-type connecting elements through a connecting frame with a special shape. According to the structure of the wing type connecting element and the connecting frame, the swing amplitude of the wing type connecting element is smaller than that of the traditional scissor type connecting element. Compared with the traditional scissor type connecting element, the wing type connecting element of the keyboard has small swing amplitude, so that the keyboard can swing stably, the touch and press stability of the key cap is further improved, and meanwhile, the thickness of the keyboard can be reduced. On the other hand, in the process that the key cap is pressed, the first connecting shaft of the wing type connecting element extends into the connecting frame to be used as a swinging fulcrum, so that the vertical movement of the wing type connecting element can be limited by the height of the first accommodating space so as to control the amplitude of the vertical movement of the first connecting shaft, namely, the keyboard can control the movement stroke of the key cap.
Drawings
FIG. 1 is a schematic cross-sectional side view of a conventional key structure.
FIG. 2 is an exploded view of a keyboard according to a preferred embodiment of the present invention.
FIG. 3 is a partially exploded view of another perspective of the keyboard according to the present invention.
FIG. 4 is a partial schematic structural diagram of a keyboard according to a preferred embodiment of the invention.
FIG. 5 is a partial sectional side view of the keyboard according to the preferred embodiment of the invention.
FIG. 6 is a schematic side view of a partial structure of a keyboard according to a preferred embodiment of the present invention.
The reference numbers are as follows:
1 push-button structure
22 keyboard
11. 22 key cap
12-scissors type connecting element
13 elastic rubber body
14 thin film switch circuit
15. 21 bottom plate
23-wing type connecting element
24 switch circuit board
25 elastic element
121. 231 first frame
122. 232 second frame
211 connecting frame
221 hook
241 holes
2311 first connecting shaft
2312 second connecting shaft
2313 groove
2314 first sliding axle
2321 third connecting shaft
2322 fourth connecting shaft
2323 second sliding shaft
211A first accommodation space
211B second accommodation space
211C third accommodation space
Detailed Description
In view of the problems of the prior art, the present invention provides a keyboard capable of solving the problems of the prior art. First, a structure of the keyboard of the present invention is described, please refer to fig. 2 and fig. 3 together, in which fig. 2 is a partially exploded view of the keyboard in a preferred embodiment of the present invention, and fig. 3 is a partially exploded view of another view angle of the keyboard in a preferred embodiment of the present invention. The keyboard 2 of the present invention includes a base plate 21, a plurality of key caps 22 (only one is shown), a plurality of wing-type connecting members 23 (only one is shown), a switch circuit board 24, and a plurality of elastic members 25 (only one is shown). The bottom plate 21 has a plurality of connecting frames 211, and the connecting frames 211 are formed by extending the bottom plate 21, wherein a first accommodating space 211A, a second accommodating space 211B and a third accommodating space 211C are formed between the connecting frames 211 and the upper surface of the bottom plate 21, the second accommodating space 211B is adjacent to the first accommodating space 211A, and the third accommodating space 211C is also adjacent to the first accommodating space 211A. The key caps 22 are respectively exposed outside the keyboard 2 for the user to touch, and the key caps 22 have a plurality of hooks 221 for engaging with the corresponding wing-type connecting elements 23. The wing-type connecting elements 23 are located on the bottom plate 21 and connected to the plurality of connecting frames 211, and can swing relative to the bottom plate 21 when the key cap 22 is pressed, so that the key cap 22 can move vertically.
The wing type connection member 23 includes a first frame 231 and a second frame 232. The first frame 231 is disposed below the key cap 22 and located on a first side of the key cap 22, a first end of the first frame 231 extends into the connecting frames 211 to be connected to the bottom plate 21, and a second end of the first frame 231 extends into the hooks 221 to be connected to the key cap 22. The second frame 232 is disposed below the key cap 22 and located on the second side of the key cap 22, a first end of the second frame 232 extends into the first frame 231 to be combined with the first frame 231, a second end of the second frame 232 extends into the plurality of hooks 221 to be connected to the key cap 22, and the second frame 232 is connected to the bottom plate 21 through the first end of the first frame 231. Wherein the first frame 231 includes the first connection shaft 2311, the second connection shaft 2312, the groove 2313 and the first sliding shaft 2314, and the second frame 232 includes the third connection shaft 2321, the fourth connection shaft 2322 and the second sliding shaft 2323.
In the first frame 231, the first connection shaft 2311 is disposed at the first end of the first frame 231 and outside the first end of the first frame 231, and can extend into the first receiving space 211A of the corresponding connection frame 211. The second connecting shaft 2312 is disposed at the second end of the first frame 231, and can be connected with the corresponding hook 221 of the key cap 22. The groove 2313 is disposed on the first end of the first frame 231 and inside the first end of the first frame 231, and can receive the first end of the second frame 232 to combine the first frame 231 and the second frame 232. The first sliding shaft 2314 is located between the first connecting shaft 2311 and the second connecting shaft 2312, and is close to the first sliding shaft 2311, and the first sliding shaft 2314 extends into the second accommodating space 211B of the corresponding connecting frame 211. That is, the first frame 231 extends into the corresponding connecting frame 211 through the first connecting shaft 2311 and the first sliding shaft 2314 to combine the first frame 231 and the bottom plate 21.
In the second frame 232, the third connecting shaft 2321 is disposed at the first end of the second frame 232, and can extend into the groove 2313 of the first frame 231 to combine the first frame 231 and the second frame 232. The fourth connecting shaft 2322 is disposed at the second end of the second frame 232, and can be connected to the corresponding hook 221 of the key cap 22. The second sliding shaft 2323 is located between the third connecting shaft 2321 and the fourth connecting shaft 2322, and is close to the third connecting shaft 2321, and the second sliding shaft 2323 extends into the third accommodating space 211C of the corresponding connecting frame 211. That is, the second frame 232 is inserted into the corresponding connecting frame 211 through the third connecting shaft 2321 and the second sliding shaft 2323 to couple the second frame 232 and the bottom plate 21. As can be seen from the drawing, the height of the first accommodation space 211A is greater than that of the third accommodation space 211C, and the height of the second accommodation space 211B is the same as that of the third accommodation space 211C.
In fig. 2, 3 and 4, the switch circuit board 24 is located between the plurality of key caps 22 and the bottom plate 21, and can be triggered according to the movement of the key caps 22 to output key signals corresponding to the key caps 22. The switch circuit board 24 has a plurality of openings 241, each opening 241 corresponds to one of the connection frames 211, and when the switch circuit board 24 is stacked on the bottom plate 21, the connection frames 211 can respectively pass through the corresponding openings 241 and connect with the first frame 231 and the second frame 232. The elastic element 25 is located between the corresponding key cap 22 and the switch circuit board 24 and passes through the corresponding wing-type connecting element 23, and can be pushed by the moving key cap 22 to push against the switch circuit board 24 to trigger the switch circuit board 24. In the preferred embodiment, the elastic element 25 is an elastic Rubber body (Rubber dome), the switch circuit board 24 is a thin film switch circuit, and the internal structure of the switch circuit board 24 is composed of an upper circuit board, a lower circuit board and an isolation layer, which are well known to those skilled in the art and therefore will not be described again. In a preferred embodiment, the elastic element can be a Metal dome (Metal dome), and the thickness of the Metal dome is smaller, so that the thickness of the keyboard of the invention can be reduced.
Referring to fig. 4, fig. 5 and fig. 6, fig. 4 is a partial structural schematic diagram of a keyboard of the present invention in a preferred embodiment, fig. 5 is a partial structural sectional side view of the keyboard of the present invention in a preferred embodiment, and fig. 6 is a partial structural sectional side view of the keyboard of the present invention pressed in a preferred embodiment. Fig. 4 and 5 show the combination of the elements, in which the first connecting shaft 2311 and the first sliding shaft 2314 of the first frame 231 extend into the corresponding connecting frame 211, the second connecting shaft 2312 extends into the corresponding hook 221 of the key cap 22, the third connecting shaft 2321 and the second sliding shaft 2323 of the second frame 232 extend into the corresponding connecting frame 211, and the fourth connecting shaft 2322 extends into the corresponding hook 221 of the key cap 22.
When the user touches and presses the key cap 22, the key cap 22 vertically moves downward relative to the bottom plate 21 and pushes the second connecting shaft 2312 and the fourth connecting shaft 2322, so that the first frame 231 swings relative to the bottom plate 21 with the first connecting shaft 2311 as a fulcrum, the first connecting shaft 231 vertically moves in the first accommodating space 2311A, and the first sliding shaft 2314 horizontally moves and rotates in the second accommodating space 2311B. On the other hand, the second frame 232 swings with respect to the bottom plate 21 with the third connecting shaft 2321 connected to the first frame 231 as a fulcrum, and the third connecting shaft 2321 moves vertically with the first connecting shaft 2311, while the second sliding shaft 2323 moves horizontally and rotates in the third accommodating space 211C.
Next, the key cap 22 moving downward abuts against the elastic element 25, and the elastic element 25 is forced to change into a compressed state, and abuts against the switch circuit board 24 and triggers it, so that the switch circuit board 24 outputs a key signal corresponding to the key cap 22. When the elastic element 25 is no longer pushed by the key cap 22, the elastic element 25 is restored from the compressed state and provides an elastic force to the key cap 22, so that the key cap 22 moves vertically upward to restore to the position before being pressed, and the key cap 22 moving vertically upward drives the first frame 231 and the second frame 232 to swing to restore to the state shown in fig. 5.
It should be particularly noted that in the connecting frame 211, the first accommodating space 211A, the second accommodating space 211B and the third accommodating space 211C form a shape similar to a Chinese character 'tu', so that the first connecting shaft 231 moves vertically in the first accommodating space 2311A, the first sliding shaft 2314 moves horizontally and rotates in the second accommodating space 2311B, and the second sliding shaft 2323 moves horizontally and rotates in the third accommodating space 211C. The moving stroke of the key cap 22 can be determined according to the height of the first accommodating space 211A, and if the moving stroke of the key cap 22 needs to be increased, the design of increasing the height of the first accommodating space 211A can be adopted to increase the moving stroke of the key cap 22. On the contrary, if there is a demand for the movement stroke of the key cap 22 to be smaller, the first volume can be reduced
According to the above, the keyboard of the present invention employs the wing type connecting elements to connect to the bottom plate and the key caps respectively, and combines the bottom plate and the wing type connecting elements through the connecting frame with a special shape. According to the structure of the wing type connecting element and the connecting frame, the swing amplitude of the wing type connecting element is smaller than that of the traditional scissor type connecting element. Compared with the traditional scissor type connecting element, the wing type connecting element of the keyboard has small swing amplitude, so that the keyboard can swing stably, the touch and press stability of the key cap is further improved, and meanwhile, the thickness of the keyboard can be reduced. On the other hand, in the process that the key cap is pressed, the first connecting shaft of the wing type connecting element extends into the connecting frame to be used as a swinging fulcrum, so that the vertical movement of the wing type connecting element can be limited by the height of the first accommodating space so as to control the amplitude of the vertical movement of the first connecting shaft, namely, the keyboard can control the movement stroke of the key cap.
The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes and modifications that do not depart from the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A keyboard, comprising:
the connecting frame is provided with a first accommodating space, a second accommodating space and a third accommodating space, the second accommodating space is adjacent to the first accommodating space, the third accommodating space is adjacent to the first accommodating space, and the first accommodating space, the second accommodating space and the third accommodating space form a convex shape;
a wing connecting element disposed on the base plate and connected to the at least one connecting frame for swinging relative to the base plate, the wing connecting element comprising:
a first frame having a first sliding shaft, a first connecting shaft, a second connecting shaft and a groove, the first connecting shaft being disposed at a first end of the first frame and outside the first end of the first frame to extend into the first receiving space, the second connecting shaft being disposed at a second end of the first frame, the groove being disposed at the first end of the first frame and inside the first end of the first frame, the first sliding shaft being disposed between the first connecting shaft and the second connecting shaft, the first sliding shaft extending into the second receiving space and being connected to the bottom plate; and
a second frame, having a second sliding shaft, a third connecting shaft and a fourth connecting shaft, wherein the third connecting shaft is disposed at the first end of the second frame and is used for extending into the groove of the first frame to combine the first frame and the second frame, the fourth connecting shaft is disposed at the second end of the second frame, the second sliding shaft is disposed between the third connecting shaft and the fourth connecting shaft, the second sliding shaft extends into the third accommodating space, and the second frame is connected to the bottom plate through the first end of the first frame and the second sliding shaft; and
the key cap is connected with the second connecting shaft of the first frame and the fourth connecting shaft of the second frame and can move relative to the bottom plate;
when the key cap is pressed, the key cap vertically moves relative to the base plate and pushes against the second connecting shaft, so that the first frame swings relative to the base plate, the first connecting shaft vertically moves in the first accommodating space, the first sliding shaft horizontally moves in the second accommodating space, and the moving stroke of the key cap can be determined according to the height of the first accommodating space.
2. The keyboard of claim 1, wherein a height of the first receiving space is greater than a height of the third receiving space.
3. The keyboard of claim 1, wherein when the key cap is pressed, the key cap moves vertically relative to the bottom plate and pushes against the fourth connecting shaft, so that the second frame swings relative to the bottom plate, the third connecting shaft moves vertically along with the first connecting shaft, and the second sliding shaft moves horizontally in the third accommodating space.
4. The keyboard of claim 1, further comprising:
a switch circuit board, located on the bottom board, for outputting a key signal according to the movement of the key cap; and
an elastic element which is arranged between the key cap and the switch circuit board, passes through the wing type connecting element and is used for being pushed by the moved key cap to prop against the switch circuit board; when the elastic element is not pushed by the key cap any more, the elastic element provides an elastic force to the key cap to reset the key cap.
5. The keyboard of claim 1, wherein the key cap comprises a plurality of hooks for connecting the second connecting shaft of the first frame and the fourth connecting shaft of the second frame to connect the key cap and the wing-type connecting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810940045.5A CN110838419B (en) | 2018-08-17 | 2018-08-17 | Keyboard with a keyboard body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810940045.5A CN110838419B (en) | 2018-08-17 | 2018-08-17 | Keyboard with a keyboard body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110838419A CN110838419A (en) | 2020-02-25 |
| CN110838419B true CN110838419B (en) | 2022-03-08 |
Family
ID=69574433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810940045.5A Active CN110838419B (en) | 2018-08-17 | 2018-08-17 | Keyboard with a keyboard body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110838419B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969183A (en) * | 2012-11-09 | 2013-03-13 | 苏州达方电子有限公司 | Lifting support device for key, key and keyboard |
| CN104517769A (en) * | 2013-09-30 | 2015-04-15 | 苹果公司 | Low-travel key mechanisms using butterfly hinges |
| CN105448566A (en) * | 2015-10-19 | 2016-03-30 | 精元电脑股份有限公司 | Dual-seesaw supporting mechanism and thin word key |
| TWI567771B (en) * | 2014-03-19 | 2017-01-21 | 達方電子股份有限公司 | Keyswitch structure |
-
2018
- 2018-08-17 CN CN201810940045.5A patent/CN110838419B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969183A (en) * | 2012-11-09 | 2013-03-13 | 苏州达方电子有限公司 | Lifting support device for key, key and keyboard |
| CN104517769A (en) * | 2013-09-30 | 2015-04-15 | 苹果公司 | Low-travel key mechanisms using butterfly hinges |
| TWI567771B (en) * | 2014-03-19 | 2017-01-21 | 達方電子股份有限公司 | Keyswitch structure |
| CN105448566A (en) * | 2015-10-19 | 2016-03-30 | 精元电脑股份有限公司 | Dual-seesaw supporting mechanism and thin word key |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110838419A (en) | 2020-02-25 |
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