CN105390319B - A kind of press-key structure - Google Patents
A kind of press-key structure Download PDFInfo
- Publication number
- CN105390319B CN105390319B CN201510882208.5A CN201510882208A CN105390319B CN 105390319 B CN105390319 B CN 105390319B CN 201510882208 A CN201510882208 A CN 201510882208A CN 105390319 B CN105390319 B CN 105390319B
- Authority
- CN
- China
- Prior art keywords
- touch
- thin film
- press
- silica gel
- pcb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H01H13/70—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2217/00—Facilitation of operation; Human engineering
- H01H2217/002—Facilitation of operation; Human engineering actuable from both sides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2217/00—Facilitation of operation; Human engineering
- H01H2217/01—Off centre actuation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/03—Separate key housing
Abstract
The present invention relates to a kind of press-key structure, including keycap component, thin film circuit, PCB, the keycap component is made up of silica gel shell and printing opacity skeleton, it is raised that the bottom surface of the printing opacity skeleton is provided with multiple touch-controls, the thin film circuit includes upper circuit layer, insulating barrier, lower circuit layer, the trigger region of multiple hollow outs is interval with the insulating barrier, the trigger region of the multiple hollow out is correspondingly arranged with the multiple touch-control projection；The thin film circuit electrically connects with the PCB.The present invention can complete effective touch-control by any touch area for the touch surface for pressing silica gel shell, it is not necessary to install guide frame or balancing pole additional, save production cost；The translucent effect of button also gets a promotion simultaneously.
Description
Technical field
The present invention relates to input equipment, and in particular to a kind of press-key structure.
Background technology
At present, key-press input equipment obtains the generally use of every field, and press-key structure generally comprises plastics keycap, silica gel
Software, the pcb board for assembling entity key, in use, due to the factor such as processing or designing, often there is pressing regional area
Situation about can not effectively trigger.To solve this problem, Chinese patent CN203434056U discloses a kind of press-key structure, and it is wrapped
Keycap, switch, balancing pole, at least two supports are included, the support is in opening up cavity, and one end is provided with above the support
The axis hole of the balancing pole is can support, the balancing pole is in U-typed, and being provided with the keycap can be with balance bar ends activity
The trip of connection, the trip are placed in the cavity of the support, and the switch is placed between two supports, the switch
Upper end button is connected with the keycap internal engagement.The press-key structure simplifies program in assembling process, improves production effect
Rate.But structure is relative complex, higher is required to processing technology, the use of balancing pole also makes cost higher, and people are pursued
Be touch-control is more effective, price is less expensive key-press input product.Therefore, the present invention proposes a kind of new press-key structure.
The content of the invention
It is an object of the invention to provide a kind of press-key structure, sets multiple touch-controls raised in the bottom of keycap component, corresponding
The trigger region of spaced multiple hollow outs on the insulating barrier of thin film circuit, though pressing silica gel shell touch surface appoint
What touch area can complete effective touch-control.
The purpose of the present invention is realized by following technical proposals：A kind of press-key structure, including keycap component, thin-film electro
Road, PCB, the keycap component are made up of silica gel shell and printing opacity skeleton, and the bottom surface of the printing opacity skeleton is annular,
Multiple touch-controls projection is provided with along the annular bottom surface, the thin film circuit includes upper circuit layer, insulating barrier, lower circuit layer, institute
State the trigger region for the hollow out that multiple circular arcs are interval with insulating barrier, the trigger region of the multiple hollow out and the multiple touch-control
Projection is correspondingly arranged；The thin film circuit electrically connects with the PCB.
Further, bonding pad is set between the trigger region of the multiple hollow out.
Further, the thin film circuit is provided with loophole, and LED light source, the LED are installed in the PCB
Light source is correspondingly arranged with the loophole.
Further, the thickness of the touch surface of the silica gel shell is 1~2 millimeter.
The present invention has the following advantages that compared with prior art：
1st, the printing opacity skeleton bottom surface of keycap component is provided with corresponding with the trigger region of thin film circuit multiple touch in the present invention
Control is raised, that is, ensures effective touch-control of button, and can prevent keycap component formed after pressing completely between thin film circuit it is negative
Press and influence keycap component resilience reset.
2nd, narrow lower mouth suitable for reading wide cone barrel elastic arm is set in the present invention between silica gel shell and substrate, it is straight by elastic arm
Connect the force size for determining pressing keycap component and the resilience of keycap component resets, the sense of touch of button is effectively lifted.
3rd, the integral rigidity of the printing opacity skeleton enhancing keycap component in the present invention, strengthens the feedback of touch-control result, makes silica gel
The thickness of the touch surface of shell reduces, and strengthens the light transmission of keycap component, makes the mark on keycap component in the ring of dark
It is more eye-catching in border.
4th, the present invention is simple in construction, without guide frame and balancing pole, processing and installation of being more convenient for, while production can be reduced
Cost.
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Brief description of the drawings
Fig. 1 is the structural representation of present pre-ferred embodiments；
Fig. 2 is the schematic diagram of silica gel shell in present pre-ferred embodiments；
Fig. 3 is the schematic diagram of thin film circuit in present pre-ferred embodiments；
Fig. 4 is the schematic diagram of thin film circuit insulating barrier in present pre-ferred embodiments；
Fig. 5 is the schematic bottom view of printing opacity skeleton in present pre-ferred embodiments.
Embodiment
Referring to Fig. 1 to Fig. 5, a kind of press-key structure, including keycap component, thin film circuit 8, PCB, the keycap set
Part is made up of silica gel shell 1 and printing opacity skeleton 2, and the bottom surface of the printing opacity skeleton is provided with multiple touch-control projections 3, the thin-film electro
Road 8 includes upper circuit layer 4, insulating barrier 5, lower circuit layer 6, and the trigger region 7 of multiple hollow outs is interval with the insulating barrier, described
The trigger region of multiple hollow outs is correspondingly arranged with the multiple touch-control projection；The thin film circuit 8 is electrically connected with the PCB 9
Connect.
Referring to Fig. 1, the printing opacity skeleton 2 is the shell structure of bottom opening, and the shape of top surface can be circular, triangle
Shape, square and irregular shape etc..The silica gel shell 1 is wrapped in the outside of the printing opacity skeleton, the silica gel shell
Shape it is close with the shape of the printing opacity skeleton.The top surface of the silica gel shell is touch surface.Referring to Fig. 4, Fig. 5, this reality
Apply example to illustrate by taking round key cap assembly as an example, the bottom surface of the printing opacity skeleton 2 is annular, along the annular bottom surface
It is even to be provided with multiple touch-control projections 3, the trigger region of the hollow out of multiple arc section shapes is interval with the insulating barrier 5 of the thin film circuit
7, the trigger region of the multiple hollow out is correspondingly arranged with the multiple touch-control projection.By times for the touch surface for pressing silica gel shell
What touch area, upper circuit layer can be made to contact generation triggering electric signal, transmission with lower circuit layer by corresponding trigger region
Effective touch-control is completed to PCB.
Printing opacity skeleton strengthens the integral rigidity of keycap component, makes the thickness of the touch surface of silica gel shell reduce, and strengthens keycap
The light transmission of component, make the mark on keycap component more eye-catching in the environment of dark.In the present embodiment, outside the silica gel
The thickness of the touch surface of shell is 1~2 millimeter.The thickness of the touch surface of the silica gel shell can be selected between 1~2 millimeter
Select, most preferably, the thickness of the touch surface of the silica gel shell is 1.5 millimeters.
Further, referring to Fig. 1, Fig. 2, the silica gel shell 1 and the integrated injection molding of substrate 10, the silica gel shell with
Narrow lower mouth suitable for reading wide cone barrel elastic arm 11 is set between the substrate.Substrate is located on the upper surface of thin film circuit.It is described
The tapered cylindrical shape of band that cone barrel elastic arm is not limited in the present embodiment, it is different according to the shape of keycap component, also may be used
To be tubular of the cross section as triangle, square and irregular shape.Keycap component is tilted to any direction and can be transferred through
The resilience of cone barrel elastic arm resets.
Further, referring to Fig. 4, bonding pad 12 is set between the trigger region 7 of the multiple hollow out.Bonding pad is in keycap set
When part is not pressed all, road floor and distance of the lower circuit layer at trigger region are kept powered on, avoids the upper circuit of thin film circuit
The phenomenon that layer and lower circuit layer are contactd by mistake due to softer.
Further, referring to Fig. 3, Fig. 4, the thin film circuit is provided with loophole 13, is installed in the PCB
LED light source 14, the LED light source are correspondingly arranged with the loophole.Loophole is located at the center of the trigger region of multiple hollow outs, right
In the button for having printing opacity demand, using identical light emitting source in the case of, be arranged in the PCB immediately below keycap component,
Brightness of the translucent effect than traditional button can greatly enhance.
Further, the printing opacity skeleton is by makrolon, polymethyl methacrylate, styrenic block copolymer, fibre
Any material in plain plastics, styrene methyl methacrylate is tieed up to be process.
The content of the present embodiment is only the preferable embodiment of the present invention, but protection scope of the present invention is not limited to
In this, any one skilled in the art in the technical scope of present disclosure, the change that can readily occur in or
Replace, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the guarantor of claims
Shield scope is defined.
Claims (4)
1. a kind of press-key structure, including keycap component, thin film circuit, PCB, it is characterised in that：The keycap component by
Silica gel shell and printing opacity skeleton composition, the bottom surface of the printing opacity skeleton is annular, and multiple touch is provided with along the annular bottom surface
Control is raised, and the thin film circuit includes upper circuit layer, insulating barrier, lower circuit layer, and multiple circular arcs are interval with the insulating barrier
The trigger region of the hollow out of section shape, the trigger region of the multiple hollow out are correspondingly arranged with the multiple touch-control projection；The thin-film electro
Road electrically connects with the PCB.
2. press-key structure according to claim 1, it is characterised in that：Connection is set between the trigger region of the multiple hollow out
Area.
3. press-key structure according to claim 1, it is characterised in that：The thin film circuit is provided with loophole, the PCB
LED light source is installed, the LED light source is correspondingly arranged with the loophole on circuit board.
4. press-key structure according to claim 1, it is characterised in that：The thickness of the touch surface of the silica gel shell is 1~2
Millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510882208.5A CN105390319B (en) | 2015-12-03 | 2015-12-03 | A kind of press-key structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510882208.5A CN105390319B (en) | 2015-12-03 | 2015-12-03 | A kind of press-key structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105390319A CN105390319A (en) | 2016-03-09 |
| CN105390319B true CN105390319B (en) | 2017-11-10 |
Family
ID=55422491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510882208.5A Active CN105390319B (en) | 2015-12-03 | 2015-12-03 | A kind of press-key structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105390319B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057529A (en) * | 2016-05-16 | 2016-10-26 | 苏州力川汽车电器有限公司 | Touch control switch |
| WO2018103241A1 (en) * | 2016-12-08 | 2018-06-14 | 桂林旭研机电科技有限公司 | Light emitting touch-switching elastic button |
| US10300545B2 (en) * | 2017-10-12 | 2019-05-28 | Snap Inc. | Low-profile mechanical retention |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184789A (en) * | 2011-05-02 | 2011-09-14 | 苏州达方电子有限公司 | Combined key cap and manufacturing method thereof |
| TW201426798A (en) * | 2012-12-19 | 2014-07-01 | Primax Electronics Ltd | Keyboard device with luminous function |
| CN203192655U (en) * | 2013-04-28 | 2013-09-11 | 梅特勒-托利多(常州)测量技术有限公司 | Silica gel-embedded membrane keyboard |
| CN204204705U (en) * | 2014-08-04 | 2015-03-11 | 源曜光电股份有限公司 | Combined type keyboard |
-
2015
- 2015-12-03 CN CN201510882208.5A patent/CN105390319B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105390319A (en) | 2016-03-09 |
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Address after: 100176 1st floor, building 8, 11 Kangding street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Sinovision Technology (Beijing) Co.,Ltd. Address before: 100176 floor 1, Yuehong building, No.13, Yongchang North Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: SAINUO WEISHENG TECHNOLOGY (BEIJING) Co.,Ltd. |