CN107680862A - A kind of press-key structure and keyboard - Google Patents
A kind of press-key structure and keyboard Download PDFInfo
- Publication number
- CN107680862A CN107680862A CN201711179693.5A CN201711179693A CN107680862A CN 107680862 A CN107680862 A CN 107680862A CN 201711179693 A CN201711179693 A CN 201711179693A CN 107680862 A CN107680862 A CN 107680862A
- Authority
- CN
- China
- Prior art keywords
- fulcrum bar
- press
- elastic fulcrum
- keycap
- key structure
- 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.)
- Withdrawn
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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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/002—Calculator, computer
Landscapes
- Push-Button Switches (AREA)
Abstract
The present invention provides a kind of press-key structure and keyboard, the press-key structure includes keycap, base, the first film on-off circuit layer and elastomeric element, when the keycap in the first direction towards the base motions when, the elastomeric element produces an elastic restoring force, the elastic restoring force can make counter motion of the keycap along the first direction, and the press-key structure also includes：Elastic fulcrum bar, the base is arranged at, the elastic fulcrum bar has the first support and the first contact portion；And first protrusion, it is arranged at the keycap；Wherein, when the keycap is along the first direction towards the base motions, first protrusion compresses first support and compresses the first film on-off circuit layer to drive first contact portion to move to the second place, when the keycap continues along the first direction towards the base motions, first protrusion separates with first support, and first contact portion is recovered to first position.
Description
Technical field
The present invention relates to performed during keyboard technique field, more particularly to a kind of pressing the point touch that compresses of single by
Bond structure and the keyboard using the press-key structure.
Background technology
With the development of the social economy, computer has obtained more and more extensive application.And as people are more next to computer
The more use of diversification, people to computer particularly operating computer when the most frequently used computor-keyboard requirement also more and more higher.
The press-key structure of existing design has two kinds：A kind of is the press-key structure of volcanic crater formula framework, is used for matching desk-top
The big keyboard that machine uses, its feel is preferable, but thicker, and volume is big；Another kind is the press-key structure of scissor leg structure, mostly
For notebook computer, the isometric compact product of personal digital assistant, its relatively light and very thin thickness, but feel compared with
Difference.Above two press-key structure respectively has advantage and disadvantage.For above two press-key structure exist one it is common the problem of be exactly：By bond
After structure pressing, do not put if pinned, it is corresponding that press-key structure can continue touch-control, if so having thing to be pressed in accidentally in real life
On press-key structure, it can cause to continue input information, produce maloperation；In addition, because of circuit board and contact continuous contact and transmit electricity
Stream, persistent fever at contact and easily produce the phenomenon of bonding, cause element dysfunction.
Therefore, it is necessary to a kind of new press-key structure and keyboard are designed, to overcome drawbacks described above.
The content of the invention
It is an object of the invention to provide a kind of press-key structure and keyboard, and it can realize that single touches during pressing
Control, avoids Continued depression contact.
To reach above-mentioned purpose, the invention provides a kind of press-key structure, including keycap, base, the first film switch electricity
Road floor and elastomeric element, when the keycap in the first direction towards the base motions when, the elastomeric element produce one elasticity recover
Power, the elastic restoring force can make counter motion of the keycap along the first direction, and the press-key structure also includes：Elastic fulcrum bar, if
The base is placed in, the elastic fulcrum bar has the first support and the first contact portion；And first protrusion, it is arranged at the keycap；Wherein,
When the keycap is along the first direction towards the base motions, first protrusion compress first support with drive this first touch
Portion moves to the second place to compress the first film on-off circuit layer, when the keycap continues along the first direction towards the base
During motion, first protrusion separates with first support, and first contact portion is recovered to first position.
Preferably, first support is arranged at one end of the elastic fulcrum bar, first contact portion is arranged at the elastic fulcrum bar
Medium position.
Preferably, the elastic fulcrum bar has the first elastic fulcrum bar and the second elastic fulcrum bar, first elastic fulcrum bar has the
One end and the second end, second elastic fulcrum bar have the 3rd end, and second end is connected to the 3rd end, and first support is arranged at
The first end of first elastic fulcrum bar, first contact portion are arranged at the 3rd end.
Preferably, the base has upper lid, lid has the first fluting on this, and second elastic fulcrum bar also has the 4th end,
4th end is arranged at one end of first fluting, and second elastic fulcrum bar extends along first fluting.
Preferably, the base has upper lid, lid has substrate and fixed part on this, and the first fluting is offered on the substrate,
The second fluting is offered on the fixed part, this first fluting with this second slot connect, second elastic fulcrum bar be located at this first
At fluting, first elastic fulcrum bar is located at second fluting.
Preferably, the base also has Supporting cover, the Supporting cover has first surface, when free state, second bullet
Property pole set parallel to the first surface, first elastic fulcrum bar and the first direction form a predetermined angle.
Preferably, when free state, first contact portion is located at the first position, and first contact portion is towards the first film
On-off circuit layer is set, and first contact portion and the first film on-off circuit layer are away from the first distance.
Preferably, the base has keyhole, the key post can move on the keyhole interior edge first direction.
Preferably, first first side that uplift part is located in the fixed part, the elastic fulcrum bar is with respect to first protrusion
Set.
To reach above-mentioned purpose, present invention also offers a kind of keyboard, including the press-key structure described in above-mentioned any one.
Compared with prior art, press-key structure and keyboard provided by the invention, when pressing keycap, elastic fulcrum bar list is passed through
Contact on secondary touch-control the first film on-off circuit layer is to realize that a dynamic formula signal inputs, and when continuing pressing, elastic fulcrum bar can be got over
The first protrusion crossed on keycap, the elastic fulcrum bar recover elastic deformation and make the first contact portion and the first film on-off circuit layer point
From preventing the contact on the first contact portion Continued depression the first film on-off circuit layer, avoid the input of persistent signal, and will not produce
Constant conduction generates heat and damages product element at raw contact.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the press-key structure of the embodiment of the present invention；
Fig. 2 is the configuration schematic diagram of the press-key structure of the embodiment of the present invention；
Fig. 3 is along the cross-sectional view in A-A directions when Fig. 1 is in free state；
Fig. 4 is the partial enlarged drawing in S regions shown in Fig. 3；
Fig. 5 a to Fig. 5 d are the process schematic that the embodiment of the present invention presses keycap in the first direction；
Fig. 6 a to Fig. 6 c are that keycap button recovers to the process of free state to show when the embodiment of the present invention cancels pressing keycap
It is intended to.
Embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby coordinate embodiment detailed
It is described as follows.
Some vocabulary has been used among specification and claims to censure specific element.Have in art
Usual skill is, it is to be appreciated that manufacturer may call same element with different nouns.This specification and right will
Ask book not in a manner of the difference of title is used as and distinguishes element, but differentiation is used as with the difference of element functionally
Criterion.It is open term in the " comprising " of specification in the whole text and claim mentioned in, therefore should be construed to " including but
It is not limited to ".
Referring to figs. 1 to the structural representation for the first embodiment for shown in Fig. 4, disclosing press-key structure of the present invention, by bond
Structure 100 includes keycap 1, base 2, the first film on-off circuit layer 3, elastomeric element 4, the protrusion 13 of elastic fulcrum bar 5 and first,
In the present embodiment, the elastomeric element 4 is spring, to provide elastic restoring force when keycap 1 moves away from base 2.
Base 2 has upper lid 21 and Supporting cover 22, and upper lid 21 coordinates so that the first film on-off circuit with Supporting cover 22
Layer 3 is located between lid 21 and Supporting cover 22, and upper lid 21 has the first fluting 2112, and elastic fulcrum bar 5 is arranged at this and first opened
In groove 2112, elastically-deformable space occurs for the offer elastic fulcrum bar 5 of the first fluting 2112.Upper lid 21 has substrate 211 with fixing
Portion 212, substrate 211 have second surface 2111, and for second surface 2111 perpendicular to central axis Z, fixed part 212 is a column
Structure, fixed part 212 are arranged at the side of second surface 2111 of lid 21.Preferably, fixed part 212 is perpendicular to second surface 2111
Set, direction of the fixed part 212 along central axis Z is provided with keyhole 2121, and the first side wall of fixed part 212 is provided with second
Fluting 2122, the second fluting 2122 connect with the first fluting 2112.Supporting cover 22 has first surface 221, and first surface 221 hangs down
Directly in central axis Z.
Elastic fulcrum bar 5 is arranged on the base 2, and elastic fulcrum bar 5 has the first support 53 and the first contact portion 54；First support
53 are arranged at a free end of elastic fulcrum bar 5, and the other end of elastic fulcrum bar 5 is arranged on lid 21, and first contact portion 54 is set
In the medium position of the elastic fulcrum bar 5.Further, elastic fulcrum bar 5 has the first elastic fulcrum bar 51 and the second elastic fulcrum bar 52,
First elastic fulcrum bar 51 has the end 512 of first end 511 and second, and the second elastic fulcrum bar 52 has the 3rd end 521 and the 4th end
522, the second end 512 of the first elastic fulcrum bar 51 is connected to the 3rd end 521 of the second elastic fulcrum bar 52, with this first elastic fulcrum bar
51 and second elastic fulcrum bar 52 form the angle of " V " font structure, the angle is more than 90 degree；First support 53 is arranged at the first bullet
The first end 511 of property pole 51, the first contact portion 54 are arranged at the 3rd end 521 of the second elastic fulcrum bar 52.Second elastic fulcrum bar 52
The 4th end 522 be arranged at the first fluting 2112 end and along first fluting 2112 to fixed part 212 the first side wall extend.
In this way, the second elastic fulcrum bar 52 is located at the first fluting 2112, and elastic deformation can be produced, the first elastic fulcrum bar 51 is located at second
Slot at 2122, and elastic deformation can be produced.
Keycap 1 have key post 11, the protrusion 13 of press section 12 and first, the side of press section 12 be supplied to user by
Pressure, opposite side are provided with key post 11, and direction of the key post 11 along central axis Z sets and close to fixed part 212.First protrusion
13 are arranged at the first side of key post 11, and first protrusion 13 protrudes from the first side.Keycap 1 is defined to transport towards base 2
Dynamic direction is first direction D1, and when press-key structure 100 is completed, key post 11 is slidably secured in keyhole 2121,
The first side is set close to the first side wall, so that elastic fulcrum bar 5 is set with respect to the first protrusion 13, and can be in pressing keycap
Interference is produced during 1 so as to trigger the contact control to the first film on-off circuit layer 3.Key post 11 can be in keyhole 2121
Moved along first direction D1, to realize the pressing operation to press-key structure 100.Referring back to Fig. 2, elastomeric element 4 is along key post
11 are set, and one end of elastomeric element 4 abuts keycap 1, and the other end abuts base 2, in this way, can be sent out along central axis Z direction
Raw elastic deformation is recovered to the power for not being pressed state with providing keycap 1.
Referring to Fig. 3 and Fig. 4, when free state, 53 relative first protrusion 13 of the first support is set, and is swelled with first
Portion 13 does not contact, and now, the second elastic fulcrum bar 52 is parallel to first surface 221, the first elastic fulcrum bar 51 and first direction D1
Shape has angle, in this way, the opposite second end 512 of first end 511 of the first elastic fulcrum bar 51 is closer to central axis Z；Now,
First contact portion 54 is located at first position, and is set towards the first film on-off circuit layer 3, and the first contact portion 54 switchs with the first film
The surface of circuit layer 3 H away from the first distance, during ensureing not pressing keycap 1, contact corresponding to the first film on-off circuit layer 3
It is not turned on, i.e., in cut-off state.
Referring to Fig. 5 a, when in the press section 12 of keycap 1 apply one along first direction D1 active force when, key post 11 is in key
The interior edge first direction D1 of hole 2121 moves towards the first surface 221 of the Supporting cover 22 of base 1, is opened i.e. towards the first film
Close circuit layer 3 to move, the first protrusion 13 moves with key post 11 along first direction D1, and produces and do with the first support 53
Relate to, the first protrusion 13 presses the first support 53, so that D1 is moved the first elastic fulcrum bar 51 generally in a first direction, so as to drive
Elastic deformation occurs for the second elastic fulcrum bar 52, and the first contact portion 54 moves to the second place to compress the first film on-off circuit layer 3
Contact site, referring to Fig. 5 b, now the first film on-off circuit layer 3 turns on, to realize signal input control.Continue along this
One direction D1 presses the press section 12 of keycap 1, and the first contact portion 54 pushes against the first film on-off circuit layer 3, and the first protrusion 13 enters
One step is formed with the first support 53 interferes, and elastic deformation occurs for the first elastic fulcrum bar 51, and the first support 53 is by the first protrusion 13
Compress and the motion away from key post 11 is made with D2 in a second direction, referring to Fig. 5 c；Continue to press pressing for keycap 1 along first direction D1
Splenium 12, the first support 53 cross the first protrusion 13, and the first support 53 separates with the first protrusion 13, the first elastic fulcrum bar 51
Recover deformation with the second elastic fulcrum bar 52, now, elastic fulcrum bar 5 recovers to free state, the first contact portion 54 recover to this
One position, referring to Fig. 5 d.In above procedure, all the time in elastically-deformable state occurs, elastomeric element 4 produces elastomeric element 4
One elastic restoring force, the elastic restoring force can make counter motion of the keycap 1 along first direction D1.Whereby, elastic fulcrum bar 5 is passed through
Contact on single touch-control the first film on-off circuit layer 3 is to realize that a dynamic formula signal inputs, when continuing pressing, elastic fulcrum bar 5
The first support 53 can cross the first protrusion 13 on keycap 1, the elastic fulcrum bar 5 recovers elastic deformation and makes the first contact portion 54
Separated with the first film on-off circuit layer 3, prevent the contact on the Continued depression the first film on-off circuit layer 3 of the first contact portion 54,
The input of persistent signal is avoided, and constant conduction at contact will not be produced and generate heat and damage product element, it is simple in construction, operational
It is good.
With further reference to Fig. 6 a to Fig. 6 c, when the work along first direction D1 that the press section 12 cancelled to keycap 1 applies
When firmly, elastomeric element 4 recovers elastic deformation, keycap 1 is moved along fourth direction D4, fourth direction D4 and the first direction
D1's is in opposite direction, and now, the first protrusion 13 is formed with the first support 53 again interferes, so that elasticity occurs for elastic fulcrum bar 5
Deformation, the first support 53 are compressed to make the motion away from key post 11 approximately along second direction D2 by the first protrusion 13, now,
First contact portion 54 will not be driven the contact for compressing the first film on-off circuit layer 3；Elastomeric element 4 continues to recover elastic deformation,
Keycap 1 is set to be moved along fourth direction D4, the interference of the first protrusion 13 and the first support 53 is cancelled, the first protrusion 13 and first
Support 53 separates, until press-key structure 100 recovers to free state.Recover deformation in elastomeric element 4 to drive the keycap 1 along this
During fourth direction D4 is moved, first contact portion 54 no longer compresses the first film on-off circuit layer.
The embodiment of the present invention additionally provides a kind of keyboard, including the press-key structure 100 described in above-described embodiment, the keyboard are set
It is equipped with multiple press-key structures 100, the structure of the plurality of press-key structure 100, function and the course of work are same as the previously described embodiments, this
Place repeats no more.The keyboard is by the contact on the single touch-control the first film on-off circuit layer 3 of elastic fulcrum bar 5 to realize a dynamic formula
Signal inputs, and when continuing pressing, the first support 53 of elastic fulcrum bar 5 can cross the first protrusion 13 on keycap 1, elasticity branch
Bar 5 recovers elastic deformation and the first contact portion 54 is separated with the first film on-off circuit layer 3, prevents the Continued depression of the first contact portion 54
Contact on the first film on-off circuit layer 3, avoid the input of persistent signal, and will not produce at contact constant conduction heating and
Damage product element, simple in construction, good operability.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only the example for implementing the present invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from the present invention spirit and
In the range of the change and retouching made, belong to the scope of patent protection of the present invention.
Claims (10)
1. a kind of press-key structure, including keycap, base, the first film on-off circuit layer and elastomeric element, when the keycap is along
When one direction is towards the base motions, the elastomeric element produces an elastic restoring force, and the elastic restoring force can make keycap edge should
The counter motion of first direction, it is characterised in that the press-key structure also includes：
Elastic fulcrum bar, the base is arranged at, the elastic fulcrum bar has the first support and the first contact portion；And
First protrusion, it is arranged at the keycap；
Wherein, when the keycap is along the first direction towards the base motions, first protrusion compresses first support with band
Move first contact portion and move to the second place to compress the first film on-off circuit layer, when the keycap continues along the first direction
During towards the base motions, first protrusion separates with first support, and first contact portion is recovered to first position.
2. press-key structure as claimed in claim 1, it is characterised in that first support is arranged at one end of the elastic fulcrum bar,
First contact portion is arranged at the medium position of the elastic fulcrum bar.
3. press-key structure as claimed in claim 1, it is characterised in that the elastic fulcrum bar has the first elastic fulcrum bar and the second bullet
Property pole, first elastic fulcrum bar has first end and the second end, and second elastic fulcrum bar has the 3rd end, second end connection
In the 3rd end, first support is arranged at the first end of first elastic fulcrum bar, and first contact portion is arranged at the 3rd end.
4. press-key structure as claimed in claim 3, it is characterised in that the base has upper lid, and lid has the first fluting on this,
Second elastic fulcrum bar also has the 4th end, and the 4th end is arranged at one end of first fluting, and second elastic fulcrum bar edge should
First fluting extension.
5. press-key structure as claimed in claim 3, it is characterised in that the base has upper lid, and lid has substrate with consolidating on this
Determine portion, the first fluting is offered on the substrate, the second fluting is offered on the fixed part, first fluting connects with second fluting
Logical, second elastic fulcrum bar is located at first fluting, and first elastic fulcrum bar is located at second fluting.
6. press-key structure as claimed in claim 3, it is characterised in that the base also has a Supporting cover, and the Supporting cover has the
One surface, when free state, second elastic fulcrum bar parallel to the first surface set, first elastic fulcrum bar with this first
Direction forms a predetermined angle.
7. press-key structure as claimed in claim 1, it is characterised in that when free state, first contact portion be located at this first
Position, first contact portion are set towards the first film on-off circuit layer, and first contact portion and the first film on-off circuit
Layer is away from the first distance.
8. press-key structure as claimed in claim 1, it is characterised in that the keycap has key post, and the base has keyhole, the key
Post can move on the keyhole interior edge first direction.
9. press-key structure as claimed in claim 8, it is characterised in that first first side that uplift part is located in the key post,
The elastic fulcrum bar is set with respect to first protrusion.
10. a kind of keyboard, it is characterised in that including the press-key structure described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711179693.5A CN107680862A (en) | 2017-11-23 | 2017-11-23 | A kind of press-key structure and keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711179693.5A CN107680862A (en) | 2017-11-23 | 2017-11-23 | A kind of press-key structure and keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107680862A true CN107680862A (en) | 2018-02-09 |
Family
ID=61150518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711179693.5A Withdrawn CN107680862A (en) | 2017-11-23 | 2017-11-23 | A kind of press-key structure and keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107680862A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111739754A (en) * | 2020-07-03 | 2020-10-02 | 北京汉德默兹克科技有限公司 | Keyboard key assembly and installation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210457Y (en) * | 2008-04-29 | 2009-03-18 | 达方电子股份有限公司 | Press key and keyboard |
| CN201233820Y (en) * | 2008-07-23 | 2009-05-06 | 上海东洋电装有限公司 | Switch construction |
| CN201294175Y (en) * | 2008-11-04 | 2009-08-19 | 吴盛志 | Push button switch |
| CN104992866A (en) * | 2015-06-27 | 2015-10-21 | 苏州达方电子有限公司 | Keyboard button and keyboard |
-
2017
- 2017-11-23 CN CN201711179693.5A patent/CN107680862A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210457Y (en) * | 2008-04-29 | 2009-03-18 | 达方电子股份有限公司 | Press key and keyboard |
| CN201233820Y (en) * | 2008-07-23 | 2009-05-06 | 上海东洋电装有限公司 | Switch construction |
| CN201294175Y (en) * | 2008-11-04 | 2009-08-19 | 吴盛志 | Push button switch |
| CN104992866A (en) * | 2015-06-27 | 2015-10-21 | 苏州达方电子有限公司 | Keyboard button and keyboard |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111739754A (en) * | 2020-07-03 | 2020-10-02 | 北京汉德默兹克科技有限公司 | Keyboard key assembly and installation method thereof |
| CN111739754B (en) * | 2020-07-03 | 2022-04-19 | 北京汉德默兹克科技有限公司 | Keyboard key assembly and installation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180209 |
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| WW01 | Invention patent application withdrawn after publication |