CN109216078B - Key structure, key and terminal equipment - Google Patents
Key structure, key and terminal equipment Download PDFInfo
- Publication number
- CN109216078B CN109216078B CN201811151124.4A CN201811151124A CN109216078B CN 109216078 B CN109216078 B CN 109216078B CN 201811151124 A CN201811151124 A CN 201811151124A CN 109216078 B CN109216078 B CN 109216078B
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- key
- key cap
- circuit board
- printed circuit
- supporting
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- 230000008093 supporting effect Effects 0.000 claims abstract description 68
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
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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
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- Push-Button Switches (AREA)
Abstract
The disclosure relates to a key structure, a key and a terminal device. This button structure includes: the key cap layer, the supporting layer and the printed circuit board are provided with keys; the key cap layer comprises at least two key caps and a cantilever beam used for connecting the key caps; the supporting layer comprises a hollow structure for placing the key cap; the supporting layer is arranged between the key cap layer and the printed circuit board; the supporting layer is used for supporting the cantilever beam; the key caps are positioned above the keys, the positions of the key caps and the positions of the keys are arranged in a one-to-one correspondence mode, and the number of the keys is the same as that of the key caps. The supporting layer is arranged, so that the supporting effect on the cantilever beam can be achieved, and the deformation of the cantilever beam is reduced when a user presses the key cap; the length of the cantilever beam arm of each key cap can be indirectly shortened, so that the rebound force of the key cap after the key is pressed is enhanced, the direct stress of the key cap is reduced, the service life of the key is prolonged, the pressing hand feeling is improved, and the user experience is effectively improved.
Description
Technical Field
The disclosure relates to the technical field of keys, in particular to a key structure, a key and a terminal device.
Background
Along with the development of terminal equipment communication technology, the utilization rate of terminal equipment such as electronic equipment of cell-phones, panel computer, intelligent wrist-watch increases gradually, for the convenience of user to terminal equipment's control, can a plurality of buttons of equipment in terminal equipment to make the user realize terminal equipment's control through pressing this button.
Disclosure of Invention
In order to overcome the problems in the related art, the embodiments of the present disclosure provide a key structure, a key, and a terminal device. The technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a key structure including: the key cap layer, the supporting layer and the printed circuit board are provided with keys;
the key cap layer comprises at least two key caps and a cantilever beam used for connecting the key caps;
the supporting layer comprises a hollow structure for placing the key cap;
the supporting layer is arranged between the key cap layer and the printed circuit board; the supporting layer is used for supporting the cantilever beam;
the key caps are positioned above the keys, the positions of the key caps and the positions of the keys are arranged in a one-to-one correspondence mode, and the number of the keys is the same as that of the key caps.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: this button structure includes: the key cap layer, the supporting layer and the printed circuit board are provided with keys; the key cap layer comprises at least two key caps and a cantilever beam used for connecting the key caps; the supporting layer comprises a hollow structure for placing the key cap; the supporting layer is arranged between the key cap layer and the printed circuit board; the supporting layer is used for supporting the cantilever beam; the key caps are positioned above the keys, the positions of the key caps and the positions of the keys are arranged in a one-to-one correspondence mode, and the number of the keys is the same as that of the key caps. The supporting layer is arranged, so that the supporting effect on the cantilever beam can be achieved, and the deformation of the cantilever beam is reduced when a user presses the key cap; the length of the cantilever beam arm of each key cap can be indirectly shortened, so that the rebound force of the key cap after the key is pressed is enhanced, the direct stress of the key cap is reduced, the service life of the key is prolonged, the pressing hand feeling is improved, and the user experience is effectively improved.
In one embodiment, the support layer further comprises: at least one key cap support;
the key cap supporting part is positioned in the supporting layer and corresponds to the part to be supported of the key cap; the part to be supported of the key cap is the position which is not connected with the cantilever beam in the edge of the key cap.
In one embodiment, the key cap supporting part is a protruding structure arranged at the edge of the hollowed-out structure.
In one embodiment, two key cap support portions are provided for each of the key caps; each key cap is connected with two cantilever beams;
the connecting line between the supporting points of the two key cap supporting parts for the key cap is perpendicular to the connecting line between the roots of the two cantilever beams, and the roots of the cantilever beams are the positions where the cantilever beams are connected with the key cap.
In one embodiment, the supporting layer is attached to the printed circuit board in a back adhesive bonding mode;
alternatively, the first and second electrodes may be,
the supporting layer is in threaded connection with the printed circuit board.
In one embodiment, the printed circuit board is provided with a fixing hole for fixing the printed circuit board on an external object through a fastener;
and a first through hole is formed in the supporting layer at a position corresponding to the fixing hole on the printed circuit board.
In one embodiment, the printed circuit board further comprises a sound receiving hole;
and a second through hole is formed in the supporting layer at a position corresponding to the sound receiving hole in the printed circuit board.
In one embodiment, the material of the support layer comprises: and (5) soaking cotton.
According to a second aspect of the embodiments of the present disclosure, there is provided a key including:
a face cover, a middle frame and a key structure as described in any one of the above embodiments;
the key structure is arranged in the middle frame;
the key cap placing hole is formed in the surface cover, the surface cover is arranged above the middle frame in a covering mode, and the key cap is located in the key cap placing hole.
According to a third aspect of the embodiments of the present disclosure, there is provided a terminal device including the key according to any one of the embodiments.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram illustrating a key structure according to an exemplary embodiment.
Fig. 2 is a schematic structural diagram of a key structure according to a second exemplary embodiment.
Fig. 3 is a schematic diagram illustrating a connection structure of the support layer 12 and the key cap layer 11 according to an exemplary embodiment.
Fig. 4 is a schematic structural diagram of a key structure according to a third exemplary embodiment.
Fig. 5 is a schematic diagram of a structure of a key shown in a fourth example embodiment.
FIG. 6 is a schematic diagram illustrating a key structure according to an exemplary embodiment.
Fig. 7 is a schematic structural diagram of a key according to a second exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
At present, the product appearance of the terminal device becomes more and more concise and the terminal device itself is also developing towards the trend of lightness and thinness, so that the structural design space is seriously compressed. Especially in the design of button, because the restriction in space for the cantilever beam quantity of connecting in the button according to the key cap can be compressed, thereby lead to according to the key cap supporting force not enough, and then influence the button and press life-span and feel.
In order to solve the above technical problem, the present disclosure provides a key structure.
Fig. 1 is a schematic structural diagram illustrating a key structure according to an exemplary embodiment, and as shown in fig. 1, the key structure 10 includes: a key cap layer 11, a support layer 12 and a printed circuit board 13 provided with keys 131;
the key cap layer 11 includes at least two key caps 111 and cantilever beams 112 for connecting the key caps 111.
The support layer 12 includes a hollowed-out structure for placing the key cap 111.
A support layer 12 is disposed between the key cap layer 11 and the printed circuit board 13, the support layer 12 being for supporting the cantilever beam 112.
The key caps 111 are located above the keys 131, the positions of the key caps 111 correspond to the positions of the keys 131 one by one, and the number of the keys 131 is the same as that of the key caps 111.
At present, most key caps 111 are connected through cantilever beams 112, but sometimes, because the number of cantilever beams 112 is too small or not large due to space limitation, the support of the key caps 111 is insufficient, and the hand feeling and the service life are affected. In the disclosure, by arranging the supporting layer 12 below the cantilever beam 112, the supporting layer 12 can play a role of supporting the cantilever beam 112, so that when a user presses the key cap 111, the deformation amount of the cantilever beam 112 becomes smaller; the length of the cantilever beam 112 of each key cap 111 can be indirectly shortened, so that the rebound force of the key cap 111 after the key is pressed is enhanced, the direct stress of the key cap 111 is reduced, the service life of the key is prolonged, the pressing hand feeling is improved, and the user experience is effectively improved.
For example, the material of the support layer 12 may include: and (5) soaking cotton. Of course, other materials may be used for the support layer 12 in practical applications, and the present disclosure is not limited thereto.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: this button structure includes: the key cap layer, the supporting layer and the printed circuit board are provided with keys; the key cap layer comprises at least two key caps and a cantilever beam used for connecting the key caps; the supporting layer comprises a hollow structure for placing the key cap; the supporting layer is arranged between the key cap layer and the printed circuit board; the supporting layer is used for supporting the cantilever beam; the key caps are positioned above the keys, the positions of the key caps and the positions of the keys are arranged in a one-to-one correspondence mode, and the number of the keys is the same as that of the key caps. The supporting layer is arranged, so that the supporting effect on the cantilever beam can be achieved, and the deformation of the cantilever beam is reduced when a user presses the key cap; the length of the cantilever beam arm of each key cap can be indirectly shortened, so that the rebound force of the key cap after the key is pressed is enhanced, the direct stress of the key cap is reduced, the service life of the key is prolonged, the pressing hand feeling is improved, and the user experience is effectively improved.
In one embodiment, as shown in fig. 2, the support layer 12 further comprises: at least one key cap support part 121.
The key cap support part 121 is located at a position in the support layer 12 corresponding to a part to be supported of the key cap 111; the part of the key cap 111 to be supported is the position of the edge of the key cap 111 where the cantilever beam 112 is not connected.
For example, as shown in fig. 2, the key cap supporting portion 121 is a protruding structure disposed on an edge of the hollowed structure, and of course, in practical applications, the key cap supporting portion 121 may have other structure types and disposed positions, which is not limited by the present disclosure.
Fig. 3 is a schematic diagram illustrating a connection structure between the support layer 12 and the key cap layer 11 according to an exemplary embodiment, and as shown in fig. 3, by adding the key cap support portion 121 to the support layer 12 below each key cap 111 (without a position of the cantilever arm), it can be ensured that there is at least one support point below the key cap 111, so that the support balance of the key cap 111 can be increased, it is ensured that the key is not tilted outward after being pressed, and it can be ensured that the key is pressed for a long time, the key is not recessed to a position without the cantilever arm 112, and the pressing rebound strength can be enhanced, so that the strength of the direct force received by the key is reduced, and the service life of the key is ensured.
In one embodiment, when two key cap support portions 121 are provided for each key cap 111; each keycap 111 connects two cantilever beams 112.
The connecting line between the supporting points of the two key cap supporting parts 121 to the key cap 111 is perpendicular to the connecting line between the roots of the two cantilever beams 112, and the roots of the cantilever beams 112 are the positions where the cantilever beams 112 are connected with the key cap 111.
Through the arrangement mode, a supporting point is arranged at each 90 degrees of the key cap 111 and is connected with the position of the cantilever beam 112, the position where the root of the cantilever beam 112 is connected with the key cap 111 is a supporting point for the key cap 111, the position where the cantilever beam 112 is not connected with the key cap 111, and the key cap supporting part 121 is a supporting point for the key cap 111, so that the key cap 111 has 4 supporting points, and the supporting balance of the key cap 111 can be further improved.
Of course, in practice, the number of cantilever beams 112 and the number of keycap support portions 121 may be other numbers, and the present disclosure is not limited thereto.
In order to avoid that the supporting layer 12 between the printed circuit board 13 and the key cap layer 11 is displaced, which results in that the key caps 111 do not make good contact with the keys, in an embodiment the supporting layer 12 is attached to the printed circuit board 13 by means of adhesive backing.
For example, the back adhesive may cover the whole surface of the support layer 12 close to the printed circuit board 13, or may cover a partial area of the surface of the support layer 12 close to the printed circuit board 13, and the disclosure does not limit the area where the back adhesive is disposed.
In one embodiment, the support layer 12 and the printed circuit board 13 may also be connected by a screw thread.
In this case, through holes may be provided at corresponding positions of the support layer 12 and the printed circuit board 13, and the support layer 12 and the printed circuit board 13 may be connected by fastening members sequentially passing through the through holes of the support layer 12 and the printed circuit board 13.
In one embodiment, as shown in fig. 4, the printed circuit board 13 is provided with a fixing hole 132 for fixing the printed circuit board 13 to an external object by a fastener;
the first through hole 122 is formed in the support layer 12 at a position corresponding to the fixing hole 132 of the printed circuit board 13.
When it is desired to fix the printed circuit board 13 to the external object, the fixing holes 132 may be formed on the printed circuit board 13, and since the support layer 12 is located on the printed circuit board 13, if the positions of the support layer 12 corresponding to the fixing holes 132 on the printed circuit board 13 are not provided with the first through holes 122, when the printed circuit board 13 is fixed to the external object by using fasteners (e.g., screws), the positions of the support layer 12 corresponding to the fixing holes 132 on the printed circuit board 13 cannot be quickly found because the fixing holes 132 on the printed circuit board 13 are blocked by the support layer 12, and therefore, in the present disclosure, the first through holes 122 may be formed in the support layer 12 corresponding to the fixing holes 132 on the printed circuit board 13, so that the positions of the support layer 12 corresponding to the fixing holes 132 on the printed circuit board 13 can be quickly found, for fixing the printed circuit board 13.
In one embodiment, as shown in the above-mentioned printed circuit board 13, a sound-receiving function is further included, and as shown in fig. 5, a sound-receiving hole 133 is further included in the above-mentioned printed circuit board 13; a second through hole 123 is formed in the support layer 12 at a position corresponding to the sound emission hole 133 of the printed circuit board 13.
When the sound receiving function is needed, the second through hole 123 is disposed in the supporting layer 12, so that the problem that the sound receiving hole 133 on the printed circuit board 13 is blocked by the supporting layer 12 to reduce the sound receiving effect is avoided.
Fig. 6 is a schematic diagram illustrating a structure of a key according to an exemplary embodiment, as shown in fig. 6, the key including: a face cover 21, a middle frame 22 and a key structure as described in any of the above embodiments;
the key structure is arranged in the middle frame 22;
the front cover 21 is provided with a key cap placing hole 211, the front cover 21 is arranged above the middle frame, and the key cap 111 is positioned in the key cap placing hole 211.
Further, as shown in fig. 6 and 7, fixing grooves 221 are provided in the middle frame 22, and when the key assembly is performed, the printed circuit board 13 may be connected to the middle frame 22 by screwing through the first through hole 122 of the support layer 12, the fixing hole 132 of the printed circuit board 13, and the fixing grooves 221 in the middle frame 22 in order, and then the key cap layer 11 may be placed at a corresponding position above the support layer 12, and then the face cap 21 may be covered on the middle frame.
The present disclosure also provides a terminal device, including the key according to any of the above embodiments.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (8)
1. A key structure, comprising: the key cap layer, the supporting layer and the printed circuit board are provided with keys;
the key cap layer comprises at least two key caps and a cantilever beam used for connecting the key caps;
the supporting layer comprises a hollow structure for placing the key cap;
the supporting layer is arranged between the key cap layer and the printed circuit board; the supporting layer is used for supporting the cantilever beam;
the key caps are positioned above the keys, the positions of the key caps and the positions of the keys are arranged in a one-to-one correspondence manner, and the number of the keys is the same as that of the key caps;
the material of the support layer comprises: soaking cotton;
the support layer further includes: at least one key cap support;
the key cap supporting part is positioned in the supporting layer and corresponds to the part to be supported of the key cap; the part to be supported of the key cap is the position which is not connected with the cantilever beam in the edge of the key cap.
2. The key structure according to claim 1, wherein the key cap supporting portion is a protruding structure disposed at an edge of the hollowed-out structure.
3. The key structure according to claim 1, wherein two key cap support portions are provided for each of the key caps; each key cap is connected with two cantilever beams;
the connecting line between the supporting points of the two key cap supporting parts for the key cap is perpendicular to the connecting line between the roots of the two cantilever beams, and the roots of the cantilever beams are the positions where the cantilever beams are connected with the key cap.
4. The key structure of claim 1, wherein the supporting layer is attached to the printed circuit board by means of adhesive backing;
alternatively, the first and second electrodes may be,
the supporting layer is in threaded connection with the printed circuit board.
5. The key structure of claim 1, wherein said printed circuit board has a hole for fastening said printed circuit board to an external object by a fastening member;
and a first through hole is formed in the supporting layer at a position corresponding to the fixing hole on the printed circuit board.
6. The key structure of claim 1, further comprising a sound receiving hole on said printed circuit board;
and a second through hole is formed in the supporting layer at a position corresponding to the sound receiving hole in the printed circuit board.
7. A key, comprising:
a face cover, a middle frame and a key structure according to any one of claims 1-6;
the key structure is arranged in the middle frame;
the key cap placing hole is formed in the surface cover, the surface cover is arranged above the middle frame in a covering mode, and the key cap is located in the key cap placing hole.
8. A terminal device characterized in that it comprises a key according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151124.4A CN109216078B (en) | 2018-09-29 | 2018-09-29 | Key structure, key and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151124.4A CN109216078B (en) | 2018-09-29 | 2018-09-29 | Key structure, key and terminal equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109216078A CN109216078A (en) | 2019-01-15 |
| CN109216078B true CN109216078B (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811151124.4A Active CN109216078B (en) | 2018-09-29 | 2018-09-29 | Key structure, key and terminal equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN109216078B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872691A (en) * | 2009-04-21 | 2010-10-27 | 深圳富泰宏精密工业有限公司 | Keypress assembly and portable electronic device equipped with same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002251939A (en) * | 2000-12-22 | 2002-09-06 | Seiko Epson Corp | Push-button and recording device provided with the same |
| CN203026415U (en) * | 2012-12-12 | 2013-06-26 | Tcl通力电子（惠州）有限公司 | Key structure |
| CN204117910U (en) * | 2014-09-09 | 2015-01-21 | 珠海格力电器股份有限公司 | Two cantilever press-key structure and thermantidote control panel |
-
2018
- 2018-09-29 CN CN201811151124.4A patent/CN109216078B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872691A (en) * | 2009-04-21 | 2010-10-27 | 深圳富泰宏精密工业有限公司 | Keypress assembly and portable electronic device equipped with same |
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| CN109216078A (en) | 2019-01-15 |
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Address after: 100085 Huarun Qingcai Street 68, Haidian District, Beijing, two stage, 9 floor, 01 rooms. Patentee after: BEIJING XIAOMI MOBILE SOFTWARE Co.,Ltd. Patentee after: Qingdao Yilai Intelligent Technology Co.,Ltd. Address before: 100085 Huarun Qingcai Street 68, Haidian District, Beijing, two stage, 9 floor, 01 rooms. Patentee before: BEIJING XIAOMI MOBILE SOFTWARE Co.,Ltd. Patentee before: QINGDAO YEELINK INFORMATION TECHNOLOGY Co.,Ltd. |