CN105185632B - Button and its keyboard - Google Patents
Button and its keyboard Download PDFInfo
- Publication number
- CN105185632B CN105185632B CN201510578678.2A CN201510578678A CN105185632B CN 105185632 B CN105185632 B CN 105185632B CN 201510578678 A CN201510578678 A CN 201510578678A CN 105185632 B CN105185632 B CN 105185632B
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- CN
- China
- Prior art keywords
- film layer
- base plate
- wall
- conductive layer
- circuit board
- 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
- H01H13/704—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 the layers, e.g. by their material or structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/008—Static electricity considerations
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Elimination Of Static Electricity (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses a kind of button and its keyboard, its button includes base plate, keycap, liftable supporter and circuit board.The base plate has ground connection arm.The circuit board is arranged on the base plate.The circuit board forms unfilled corner, position corresponding to the unfilled corner of luminescence unit on the base plate.The circuit board includes upper film layer, lower film layer, wall, the first conductive layer and the second conductive layer.First conductive layer is located between the lower film layer and the wall.Partial first conductive layer is not film layer on this and wall masking, and is exposed to the outer conductive layer of part first adjacent to the unfilled corner.Second conductive layer is located on this between film layer and the wall to contact the ground connection arm, and electrically connects first conductive layer using wire.The present invention can solve, because keyboard structure is complicated, to cause number of assembling steps cumbersome and the too high problem of product cost.
Description
Technical field
The present invention provides a kind of button and its keyboard, espespecially a kind of button and its keyboard that can prevent static discharge.
Background technology
The frivolous light and handy designer trends with the development of science and technology consumption electronic products are gradually marched toward, there is provided be easy to carry
And the graceful characteristic of external form can just obtain the preferable market competitiveness.For with computer keyboard, except frivolous light and handy structure sets
Meter, can also design lighting function on each button, thereby lift value of the product and sales advantage.However, illuminated keyboard is each
Luminescence unit is correspondingly arranged by individual button, it must be tested by anti-electrostatic-discharge, is just avoided that these luminescence units are using key
Surprisingly damaged by electrostatic breakdown during disk.Known anti-electrostatic-discharge design can cover a metal screen on each luminescence unit
Cover, but metallic shield can greatly improve the manufacturing cost of illuminated keyboard, also be significantly reduced because number of assembling steps complexity is cumbersome
Product yield.
The content of the invention
Therefore, an object of the present invention is to provide a kind of button and its keyboard that can prevent static discharge, to solve
It is certainly above-mentioned because keyboard structure is complicated, cause number of assembling steps cumbersome and the excessively high problem of product cost.
It is that up to above-mentioned purpose, the present invention provides a kind of button for preventing static discharge, the button includes：Base plate, has
Ground connection arm；Keycap, is movably disposed on the base plate；Liftable supporter, is connected to the keycap and the base plate, the keycap
Moved up and down with respect to the base plate using the liftable supporter；And circuit board, it is arranged on the base plate, the circuit board forms scarce
Angle, position corresponding to the unfilled corner of luminescence unit on the base plate.The circuit board is included：Upper film layer；Lower film layer；Interval
Layer, is arranged on this between film layer and the lower film layer；First conductive layer, between the lower film layer and the wall,
Partial first conductive layer is not film layer on this and wall masking, and is exposed to first conduction of the outer part
The neighbouring unfilled corner of layer；And second conductive layer, on this between film layer and the wall, second conductive layers make contact this connect
Ground arm, and electrically connect first conductive layer using wire.
Used as optional technical scheme, side of film layer protrudes from the lower film layer and the phase of the wall on this
Side is answered, the ground connection arm contacts second conductive layer for the part for being exposed to outer by the side of film layer on this.
As optional technical scheme, a side of the lower film layer protrudes from film layer on this and the wall
Respective side edge, and the part first conductive layer be exposed to by the side of the lower film layer it is outer.
Used as optional technical scheme, film layer has the first opening on this, and the wall has and corresponds to this and first open
Mouthful the second opening, first conductive layer of the part is exposed to outer via first opening and second opening.
Used as optional technical scheme, the radial dimension of first opening is equal to or less than the radial ruler of second opening
It is very little.
Used as optional technical scheme, the ground connection arm extends to be formed from the base plate, and the ground connection arm and the base plate by
Conductive material is made.
Used as optional technical scheme, the circuit board additionally comprises marine glue, be coated on the lower film layer and the wall it
Between, and the marine glue is in the region that first conductive layer, the lower film layer and the wall are defined.
The present invention also provides a kind of keyboard for preventing static discharge, and the keyboard includes：Base plate, with a plurality of grounding arms
Portion；And a plurality of buttons, it is arranged on the base plate.At least one of a plurality of buttons is included：Keycap, movably
Set on which floor plate；Liftable supporter, is connected to the keycap and the base plate, and the keycap is relative using the liftable supporter
The base plate is moved up and down；And circuit board, it is arranged on the base plate, the circuit board has unfilled corner, and luminescence unit is located at the base plate
On the unfilled corner corresponding to position.The circuit board is included：Upper film layer；Lower film layer；Wall, be arranged on this film layer with
Between the lower film layer；First conductive layer, between the lower film layer and the wall, first conductive layer of part is not
Film layer is covered with the wall on this, and is exposed to first conductive layer of the outer part adjacent to the unfilled corner；And second
Conductive layer, on this between film layer and the wall, second conductive layers make contact this it is a plurality of ground connection arms at least its
One of, and electrically connect first conductive layer using wire.
Used as optional technical scheme, side of film layer protrudes from the lower film layer and the phase of the wall on this
Side is answered, the ground connection arm contacts second conductive layer for the part for being exposed to outer by the side of film layer on this.
Used as optional technical scheme, a side of the lower film layer protrudes from the phase of film layer and the wall on this
Side, and first conductive layer of the part is answered to be exposed to by the side of the lower film layer outward.
Used as optional technical scheme, film layer has the first opening on this, and the wall has and corresponds to this and first open
Mouthful the second opening, first conductive layer of the part is exposed to outer via first opening and second opening.
Used as optional technical scheme, the radial dimension of first opening is equal to or less than the radial ruler of second opening
It is very little.
Used as optional technical scheme, a plurality of ground connection arms extend to be formed from the base plate, and a plurality of grounding arms
Portion is made with the base plate by conductive material.
Used as optional technical scheme, the circuit board additionally comprises marine glue, be coated on the lower film layer and the wall it
Between, and the marine glue is in the region that first conductive layer, the lower film layer and the wall are defined.
Compared with prior art, the present invention on circuit boards borehole to expose the conductive layer in circuit board, the conduction for exposing
Layer is around or partially around in luminescence unit.Conductive layer can be linked to base plate, therefore button and keyboard with regard to energy via ground connection arm
Having with the grounding design of ground connection arm using circuit board prevents static discharge (Electrostatic Discharge, ESD)
Effect.Button of the invention and its keyboard utilize the raising (ground connection arm) of the conductive layer collocation metal base plate in film circuit board
Or other manner provides ground connection, because button is limited with the inner space of keyboard, conductive layer and/or wire visible product are designed
And extend any open position of the cabling to keyboard and be just grounded, therefore can significantly reduce small product size, to apply slim
On keyboard.
Can be obtained further by following detailed description of the invention and institute's accompanying drawings on the advantages and spirit of the present invention
Solution.
Brief description of the drawings
Fig. 1 is the schematic diagram of the keyboard of the embodiment of the present invention.
Fig. 2 dislikes sectional view for the button of the embodiment of the present invention.
Fig. 3 is the part-structure top view of the button of the embodiment of the present invention.
Fig. 4 is the circuit board of first embodiment of the invention and its side view of unfilled corner.
Fig. 5 is the circuit board of second embodiment of the invention and its side view of unfilled corner.
Fig. 6 is the circuit board of third embodiment of the invention and its side view of unfilled corner.
Fig. 7 is the enlarged schematic partial view of Fig. 2.
Specific embodiment
It is the schematic diagram of the keyboard 10 of the embodiment of the present invention to refer to Fig. 1 and Fig. 2, Fig. 1, and Fig. 2 is the embodiment of the present invention
The sectional view of button 14.Keyboard 10 includes base plate 12 and a plurality of buttons 14, and each button 14 is arranged on the spy of base plate 12
Positioning is put, and is used to perform user's signal character string to be input into.The design for preventing static discharge proposed by the present invention can be applied
On at least one in a plurality of buttons 14, allowing some buttons 14 or whole buttons 14 and the entirety of keyboard 10 all to have prevents quiet
Discharge of electricity function, its actual application end depending on design requirement, in this no longer elaborate.
Fig. 2 is the sectional view of the hatching X-X of button 14 shown in Fig. 1.Button 14 comprising keycap 16, liftable supporter 18,
Circuit board 20, luminescence unit 22 and elastic component 24.Circuit board 20 is arranged on base plate 12.Keycap 16 is via liftable supporter
18 are arranged on base plate 12, and elastic component 24 is located between keycap 16 and base plate 12 so that keycap 16 can opposed bottom about 12
It is mobile.Luminescence unit 22 is arranged on base plate 12, and its position corresponds to the transparent area 26 of keycap 16, therefore luminescence unit 22 is produced
Light can be sent to outside keycap 16 by transparent area 26, reach effect of keyboard/key light emitting.In figure 2 it can be seen that electric
Road plate 20 have one or more unfilled corners 28, luminescence unit 22 be located at base plate 12 on unfilled corner 28 corresponding to position or this correspondence
The periphery of position.
Circuit board 20 can be by the conductive layer of the exposed parts of unfilled corner 28, and the periphery that conductive layer is centered around luminescence unit 22 provides
Drainage ground connection acts on, and can prevent electrostatic from directly puncturing luminescence unit 22 and damage.In fig. 2, unfilled corner 28 can be considered circuit board
Holes on 20, is used to expose the conductive layer in circuit board 20.Or as shown in figure 3, circuit board 20 will be around in luminescence unit
The part on 22 peripheries cuts to form unfilled corner 28, and edge exposure conductive layer in unfilled corner 28 (implies that conductive layer is centered around hair
The periphery of light unit 22), thereby reach earthing effect.Wherein, Fig. 3 is the part-structure vertical view of the button 14 of the embodiment of the present invention
Figure.In addition, base plate 12 also has one or more ground connection arms 30, multiple ground connection arm 30 is preferably separately positioned on each button
14 lower section, single ground connection arm 30 then may be provided at optional position of the tool compared with clearing in keyboard 10.
Fig. 4 is referred to, Fig. 4 is the circuit board 20 of first embodiment of the invention and its side view of unfilled corner 28, and it also can be
The enlarged diagram in region A shown in Fig. 2.Circuit board 20 is preferably film circuit board, and it includes film layer 32, lower film layer
34th, wall 36, the first conductive layer 38 and marine glue 40.Wall 36 be arranged on film layer 32 and lower film layer 34 it
Between.First conductive layer 38 is located between lower film layer 34 and wall 36, and marine glue 40 is separately applied and plants film layer 34 and interval
Between layer 36, and marine glue 40 is located in the region defined of the first conductive layer 38, lower film layer 34 and wall 36, and with this three
Person contacts.Marine glue 40 can prevent moisture from penetrating into circuit board 20, and the first conductive layer 38 of part is exposed to via unfilled corner 28
Outward, without being covered with wall 36 by upper film layer 32.
With the first opening 42, wall 36 has the second opening 44 to upper film layer 32, and the second opening 44 is alignd and real
Matter is communicated in the first opening 42.First conductive layer 38 of the part be via first opening 42 with second be open 44 and be exposed to
Outward.The combination alternative of the first opening 42 and the second opening 44 is designed to some of unfilled corner 28.In the first embodiment,
The radial dimension D1 of the first opening 42 is substantially equal to the radial dimension D2 of the second opening 44.So in other embodiment, for example
Shown in Fig. 5, Fig. 5 is the circuit board 20 of second embodiment of the invention and its side view of unfilled corner 28, the radial ruler of the first opening 42
Very little D1 is smaller than the radial dimension D2 of the second opening 44.The caliber size of the first opening 42 and the second opening 44 is not limited to foregoing
Shown in embodiment, hold depending on design requirement.Special one is mentioned that, has identical numbering in second embodiment with first embodiment
Component there is identical function and position corresponding relation, so being not repeated to chat bright.
Fig. 6 is referred to, Fig. 6 is the circuit board 20 of third embodiment of the invention and its side view of unfilled corner 28.3rd implements
The position of the unfilled corner 28 of example is substantially analogous to the unfilled corner position of first embodiment and second embodiment, and its difference is only that these are thin
The structure change of film layer, wall, conductive layer and marine glue, spy first chats bright.As shown in fig. 6, the side 341 of lower film layer 34
The respective side (right edge as illustrated in the drawing) of film layer 32 and wall 36 is protruded from, the first conductive layer 38 is laid on down
The first conductive layer 38 in film layer 34 therefore partial can expose to unfilled corner 28 by the side 341 of lower film layer 34.Typically
For, the first embodiment and second embodiment preferred application shown in Fig. 4 and Fig. 5 in the button aspect shown in Fig. 2, shown in Fig. 6
3rd embodiment preferred application in the button aspect shown in Fig. 3, so still visual demand arbitrarily interaction collocation.
Fig. 7 is referred to, Fig. 7 is the enlarged diagram of region B shown in Fig. 2.Circuit board 20 additionally comprises the second conductive layer 46, position
Between upper film layer 32 and wall 36.The side 321 of upper film layer 32 protrudes from the phase of lower film layer 34 and wall 36
The second conductive layer 46 of side, part is answered to be laid on prominent side 321, and the second conductive layer 46 and the first conductive layer 38 can profits
It is electrically connected to one another with wire 48 (as shown in Figure 4).Ground connection arm 30 from base plate 12 extend formed, and ground connection arm 30 with
Base plate 12 is made by conductive material.Ground connection arm 30 can directly contact and outer part is exposed to because of side 321
Second conductive layer 46, consequently, it is possible to when in static shock from the first conductive layer 38 of part that unfilled corner 28 exposes, electric current can be sequentially
It is grounded via the order of the first conductive layer 38, wire 48, the second conductive layer 46, ground connection arm 30 and base plate 12, is prevented effectively from hair
Light unit 22 wrecks because of electrostatic shock.
Compare prior art, the present invention on circuit boards borehole to expose the conductive layer in circuit board, the conductive layer for exposing
Around or partially around in luminescence unit.Conductive layer can be linked to base plate via ground connection arm, therefore button just can profit with keyboard
There is the work(for preventing static discharge (Electrostatic Discharge, ESD) with circuit board and the grounding design of ground connection arm
Effect.Button of the invention and its keyboard using the conductive layer collocation metal base plate in film circuit board raising (ground connection arm) or
Other manner provides ground connection, and because button is limited with the inner space of keyboard, conductive layer and/or wire visible product are designed and prolonged
Stretch any open position of the cabling to keyboard to be just grounded, therefore can significantly reduce small product size, to apply in slight keyboard
On.
By the above detailed description of preferred embodiments, it is intended to more clearly describe feature of the invention and spirit,
And protection scope of the present invention is any limitation as with above-mentioned disclosed preferred embodiment not.On the contrary, its purpose
It is intended to cover being arranged in the scope of the claims to be applied of the invention for various changes and tool equality.Cause
This, apllied scope of the claims of the invention should make most broad explanation according to above-mentioned explanation, to cause it
Cover all possible change and the arrangement of tool equality.
Claims (14)
1. a kind of button for preventing static discharge, it is characterised in that the button includes：
Base plate, with ground connection arm；
Keycap, is movably disposed on the base plate；
Liftable supporter, is connected to the keycap and the base plate, and the keycap is upper and lower with respect to the base plate using the liftable supporter
It is mobile；And
Circuit board, is arranged on the base plate, and the circuit board forms unfilled corner, and luminescence unit is located at corresponding to the unfilled corner on the base plate
Position, the circuit board is included：
Upper film layer；
Lower film layer；
Wall, is arranged on this between film layer and the lower film layer；
First conductive layer, between the lower film layer and the wall, first conductive layer of part is not by film layer on this
It is exposed to via the unfilled corner with first conductive layer of wall masking, and the part outer；And
Second conductive layer, on this between film layer and the wall, second conductive layers make contact ground connection arm, and utilize
Wire electrically connects first conductive layer.
2. button as claimed in claim 1, it is characterised in that on this side of film layer protrude from the lower film layer and
The respective side edge of the wall, the ground connection arm contacted by the side of film layer on this part that is exposed to outer this
Two conductive layers.
3. button as claimed in claim 1, it is characterised in that a side of the lower film layer protrude from this film layer and
The respective side edge of the wall, and the part first conductive layer be exposed to by the side of the lower film layer it is outer.
4. button as claimed in claim 1, it is characterised in that film layer has the first opening on this, and it is right that the wall has
Should be in the second opening of first opening, first conductive layer of the part second is open and exposed via first opening with this
In outer.
5. button as claimed in claim 4, it is characterised in that radial dimension of first opening is equal to or less than this and second opens
The radial dimension of mouth.
6. button as claimed in claim 1, it is characterised in that the ground connection arm extends to be formed from the base plate, and the grounding arm
Portion is made with the base plate by conductive material.
7. button as claimed in claim 1, it is characterised in that the circuit board additionally comprises marine glue, is coated on the lower film layer
Between the wall, and the marine glue is in the region that first conductive layer, the lower film layer and the wall are defined.
8. a kind of keyboard for preventing static discharge, it is characterised in that the keyboard includes：
Base plate, with a plurality of ground connection arms；And
A plurality of buttons, are arranged on the base plate, and at least one of a plurality of buttons is included：
Keycap, is movably disposed on the base plate；
Liftable supporter, is connected to the keycap and the base plate, and the keycap is upper and lower with respect to the base plate using the liftable supporter
It is mobile；And
Circuit board, is arranged on the base plate, and the circuit board has unfilled corner, and luminescence unit is located at corresponding to the unfilled corner on the base plate
Position, the circuit board is included：
Upper film layer；
Lower film layer；
Wall, is arranged on this between film layer and the lower film layer；
First conductive layer, between the lower film layer and the wall, first conductive layer of part is not by film layer on this
It is exposed to via the unfilled corner with first conductive layer of wall masking, and the part outer；And
Second conductive layer, on this between film layer and the wall, second conductive layers make contact a plurality of ground connection arms
At least one, and electrically connect first conductive layer using wire.
9. keyboard as claimed in claim 8, it is characterised in that on this side of film layer protrude from the lower film layer and
The respective side edge of the wall, the ground connection arm contacted by the side of film layer on this part that is exposed to outer this
Two conductive layers.
10. keyboard as claimed in claim 8, it is characterised in that a side of the lower film layer protrude from this film layer with
And the respective side edge of the wall, and the part first conductive layer be exposed to by the side of the lower film layer it is outer.
11. keyboards as claimed in claim 8, it is characterised in that film layer has the first opening on this, and it is right that the wall has
Should be in the second opening of first opening, first conductive layer of the part second is open and exposed via first opening with this
In outer.
12. keyboards as claimed in claim 11, it is characterised in that this first opening radial dimension be equal to or less than this second
The radial dimension of opening.
13. keyboards as claimed in claim 8, it is characterised in that a plurality of ground connection arms extend to be formed from the base plate, and should
A plurality of ground connection arms are made with the base plate by conductive material.
14. keyboards as claimed in claim 8, it is characterised in that the circuit board additionally comprises marine glue, are coated on the lower film layer
Between the wall, and the marine glue is in the region that first conductive layer, the lower film layer and the wall are defined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578678.2A CN105185632B (en) | 2015-09-11 | 2015-09-11 | Button and its keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578678.2A CN105185632B (en) | 2015-09-11 | 2015-09-11 | Button and its keyboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105185632A CN105185632A (en) | 2015-12-23 |
| CN105185632B true CN105185632B (en) | 2017-06-20 |
Family
ID=54907645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510578678.2A Active CN105185632B (en) | 2015-09-11 | 2015-09-11 | Button and its keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105185632B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI595523B (en) * | 2016-08-10 | 2017-08-11 | 達方電子股份有限公司 | Illuminated keyboard and keyboard module |
| CN109411278A (en) * | 2017-08-16 | 2019-03-01 | 致伸科技股份有限公司 | The press-key structure of anti-electrostatic-discharge |
| TWI691991B (en) * | 2018-08-31 | 2020-04-21 | 達方電子股份有限公司 | Light emitting keyboard and lighting board thereof |
| CN111341584B (en) * | 2018-12-18 | 2022-02-25 | 群光电子(苏州)有限公司 | Keyboard device |
| US10720289B1 (en) | 2019-02-20 | 2020-07-21 | Darfon Electronics Corp. | Light emitting keyboard and lighting board thereof |
| CN110492457A (en) * | 2019-06-26 | 2019-11-22 | 中电万维信息技术有限责任公司 | A kind of arc-suppressing method and arc-control device based on DC circuit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3831314A1 (en) * | 1988-09-15 | 1990-03-29 | Hagenuk Telecom Gmbh | COVER MAT FOR CIRCUIT BOARD |
| TW573461B (en) * | 2003-06-23 | 2004-01-21 | Benq Corp | Electrostatic discharge (ESD) protection device and touch key module with ESD protection and application |
| JP4718942B2 (en) * | 2005-09-13 | 2011-07-06 | ポリマテック株式会社 | Key sheet |
| CN202120795U (en) * | 2011-03-04 | 2012-01-18 | 群光电子股份有限公司 | Button module, keyboard and electronic device |
| CN202678132U (en) * | 2012-07-02 | 2013-01-16 | 苏州达方电子有限公司 | Keys and keyboard |
-
2015
- 2015-09-11 CN CN201510578678.2A patent/CN105185632B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105185632A (en) | 2015-12-23 |
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