CN105304382A - Key device - Google Patents
Key device Download PDFInfo
- Publication number
- CN105304382A CN105304382A CN201410329603.6A CN201410329603A CN105304382A CN 105304382 A CN105304382 A CN 105304382A CN 201410329603 A CN201410329603 A CN 201410329603A CN 105304382 A CN105304382 A CN 105304382A
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- CN
- China
- Prior art keywords
- circuit board
- elastic component
- key device
- button
- electrode piece
- 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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Abstract
The invention provides a key device, comprising a shell, a key mechanism and a circuit board. The key mechanism and the circuit board are accommodated in the shell, and a part of the key mechanism is exposed by the shell. The key mechanism comprises a key, an electrode element and an elastic element; and the key is placed on the electrode element. The electrode element is clamped between the key and the elastic element and is electrically connected with the circuit board. The elastic element is arranged on the circuit board. The elastic element comprises a triggering part away from the circuit board for a certain distance. The circuit board is provided with a contact area which is arranged to be opposite to the triggering part. When key presses the electrode element and the elastic element to move downwards under the action of an external force, the electrode element elastically deforms. When the triggering part is in contact with the contact area, a potential difference is formed between the electrode element and the contact area, and the key device senses the potential difference to generate different control signals.
Description
Technical field
The present invention relates to a kind of key device.
Background technology
In existing game machine remote-control handle, pressure-sensing button can produce different control signals according to different pressing force amounts.Button has rubber structure and pressing film.Rubber structure is provided with conductive carbon particle on the bottom surface relative with pressing film.When button is pressed, produce corresponding control signal according to the area that conductive carbon particle on rubber structure and pressing film contact.In general game machine, contact area is divided into the rate range that several are non-interference, and each rate range corresponding control signal respectively.When the corresponding same rate range of different strength, then produce identical control signal, thus keystroke sensitivity is poor, and the structure of conductive carbon particle and pressing film causes sense of touch poor.
Summary of the invention
In view of this, be necessary to provide a kind of key device improving keystroke sensitivity and sense of touch.
A kind of key device is used for producing different control signals according to the pressing operation of user.Key device comprises housing, press button mechanism and circuit board.Press button mechanism and circuit board are contained in housing, and this press button mechanism part is exposed by housing.Press button mechanism comprises button, electrode piece and elastic component.Button is positioned on this electrode piece, and the relative housing of key part exposes.Electrode piece is located between button and elastic component, and is electrically connected with circuit board.Elastic component is arranged on circuit board.Elastic component comprises the trigger unit separated by a distance with circuit board.Circuit board is provided with the contact area be oppositely arranged with trigger unit.When pressing electrode piece under the effect of button in external force and elastic component moves downward, make elastic component generation elastic deformation.When trigger unit contacts with contact area, to make to form electrical potential difference between electrode piece and contact area, this key device is by sensing electrical potential difference to produce different control signals.
Adopt above-mentioned key device, utilize the sense of touch that elastic component adding users presses, and produce different control signals to improve the sensitivity of key detection by sensing electrical potential difference.
Accompanying drawing explanation
Fig. 1 is a kind of stereogram of key device of better embodiment.
Fig. 2 is the exploded view of key device shown in Fig. 1.
Fig. 3 is the schematic diagram of another angle of elastic component shown in Fig. 2.
Fig. 4 is for key device shown in Fig. 1 is along the cutaway view in IV-IV direction.
Main element symbol description
| Key device | 100 |
| Housing | 10 |
| Upper shell | 11 |
| Lower house | 13 |
| Through hole | 12 |
| Press button mechanism | 20 |
| Button | 21 |
| Keycap | 212 |
| Protuberance | 214 |
| Electrode piece | 23 |
| Conducting strip | 231 |
| Wire | 234 |
| First end | 236 |
| The second end | 238 |
| Elastic component | 25 |
| Main body | 250 |
| Resettlement section | 251 |
| Via hole | 252 |
| Press section | 253 |
| Projection | 254 |
| Connector | 255 |
| Groove | 256 |
| Trigger unit | 258 |
| Circuit board | 30 |
| Contact area | 32 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, it is a kind of module map of key device 100 of better embodiment.Key device 100 can produce different control signals according to the pressing operation of user and perform corresponding actions to control other electronic equipments.In the present embodiment, key device 100 is game paddle.
Refer to Fig. 2, key device 100 comprises housing 10, press button mechanism 20 and circuit board 30.Press button mechanism 20 and circuit board 30 collecting are arranged in housing 10, and press button mechanism 20 part exposes by housing 10.
Housing 10 is roughly rectangular-shaped.The lower house 13 that housing 10 comprises upper shell 11 and locks with upper shell 11 phase.The surface of upper shell 11 offers some through holes 12.
Press button mechanism 20 is arranged on circuit board 30, and can contact with circuit board 30 under the effect of external force.Press button mechanism 20 comprises button 21, electrode piece 23 and elastic component 25.Button 21 comprises keycap 212 and some protuberances 214.Keycap 212 is roughly cylindrical shape.Some protuberances 214 are formed along stretching out with keycap 212 vertical direction by the bottom of keycap 212, and it is roughly rectangular-shaped.In the present embodiment, button 21 comprises 4 symmetrically arranged protuberances 214.
Electrode piece 23 is arranged between button 21 and elastic component 25.Electrode piece 23 comprises conducting strip 231 and wire 234.The roughly rounded flake of conducting strip 231.Wire 234 is roughly in L shape.Wire 234 comprises first end 236 and the second end 238.The bottom surface that first end 236 is relative with elastic component 25 with conducting strip 231 is electrically connected.The second end 238 and circuit board 30 are electrically connected.
See also Fig. 3, elastic component 25 is roughly in crosswise.Elastic component 25 comprises main body 250, resettlement section 251, press section 253, groove 256 and trigger unit 258.Main body 250 is roughly in crosswise.Resettlement section 251 is caved inward by the surface that main body 250 is relative with keycap 212 and is formed, and it is roughly in crosswise.The bottom of resettlement section 251 offers via hole 252.Press section 253 comprises projection 254 and connector 255.Projection 254 is formed to the direction projection near button 21 by the middle part of resettlement section 251.Projection 254 is roughly in cylindrical shape, and it is for carrying conducting strip 231.Connector 255 is for connecting projection 254 and resettlement section 251.Connector 255 is roughly hollow round table shape, and its top edge is connected with projection 254, and lower limb is connected with the bottom surface of resettlement section 251.Groove 256 is caved inward by the surface that main body 250 is relative with circuit board 30 and forms, and it is roughly in round table-like.The roughly rounded flake of trigger unit 258, it is arranged at the bottom surface of groove 256.In the present embodiment, trigger unit 258 is made up of the rubber of doping carbon particle.
Circuit board 30 is roughly in cuboid part shape.Circuit board 30 comprises contact area 32.Contact area 32 is roughly rounded, its setting corresponding with groove 256.
Refer to Fig. 4, main body 250 is positioned on circuit board 30, makes trigger unit 258 relative with contact area 32 and a segment distance of being separated by.Conducting strip 231 is positioned on projection 254.The second end of wire 234 is electrically connected by via hole 252 and circuit board.Button 21 is positioned on conducting strip 231, and button 21 part is exposed by relative housing 10.Protuberance 214 and resettlement section 251 are oppositely arranged.
When under the effect of button 21 in external force to when moving near circuit board 30 direction, protuberance 214 is contained in resettlement section 251.There is elastic deformation to produce the elastic force contrary with force direction in elastic component 25, with the sense of touch of adding users pressing keys 21 under the effect of button 21.Now, projection 254 promotes groove 256 and elastic deformation occurs, and trigger unit 258 is contacted with contact area 32.Now, contact area 32 conducting to obtain voltage, and then makes to produce electrical potential difference between conducting strip 231 and contact area 32.Further, projection 254 can be compressed under the effect of external force, and then reduces the distance between conducting strip 231 and contact area 32.Key device 100 senses the size of external force to produce corresponding control signal according to the change of electrical potential difference between conducting strip 231 to contact area 32.Wherein, the size of external force and electrical potential difference be changing into direct ratio.When external force is cancelled, elastic component 25 is also for providing elastic force to make button 21 and elastic component 25 return back to original position.
Those skilled in the art will be appreciated that; above execution mode is only used to the present invention is described; and be not used as limitation of the invention; as long as within spirit of the present invention, the appropriate change do above embodiment and change all drop within the scope of protection of present invention.
Claims (8)
1. a key device, for producing different control signals according to the pressing operation of user; This key device comprises housing, press button mechanism and circuit board; This press button mechanism and circuit board are contained in housing, and this press button mechanism part is exposed by housing; It is characterized in that: this press button mechanism comprises button, electrode piece and elastic component; This button is positioned on this electrode piece, and the relative housing of key part exposes; This electrode piece is located between button and elastic component, and is electrically connected with circuit board; This elastic component is arranged on circuit board; This elastic component comprises the trigger unit separated by a distance with circuit board; This circuit board is provided with the contact area be oppositely arranged with trigger unit; When pressing electrode piece under the effect of button in external force and elastic component moves downward, make elastic component generation elastic deformation; When trigger unit contacts with contact area, to make to form electrical potential difference between electrode piece and contact area, this key device is by sensing electrical potential difference to produce different control signals.
2. key device as claimed in claim 1, it is characterized in that: this elastic component also comprises groove, this groove is caved inward by the surface that elastic component is relative with circuit board and forms; This trigger unit is arranged on the bottom surface of this groove.
3. key device as claimed in claim 1, is characterized in that: this elastic component also comprises press section; This press section is arranged at the middle part of elastic component; This electrode piece is positioned on this press section.
4. key device as claimed in claim 3, is characterized in that: this press section can be compressed under the effect of external force, to reduce the distance between electrode piece and circuit board.
5. key device as claimed in claim 1, is characterized in that: this electrode piece comprises conducting strip and wire; This elastic portion offers via hole; This conducting strip is arranged on elastic component; This wire one end and conducting strip are electrically connected, and the other end is electrically connected through elastic component and circuit board.
6. key device as claimed in claim 1, is characterized in that: the electrical potential difference change between this battery lead plate and circuit board is proportional with the size of external force.
7. key device as claimed in claim 1, is characterized in that: this contact site is made up of the elastomeric material with conductive carbon particle.
8. key device as claimed in claim 1, is characterized in that: this button comprises keycap and some protuberances; This elastic component also comprises resettlement section; This protuberance is formed along stretching out with keycap vertical direction by the bottom of keycap respectively; This resettlement section is caved inward by the surface that elastic component is relative with button and is formed; When button is pressed, this some protuberance is contained in resettlement section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329603.6A CN105304382A (en) | 2014-07-11 | 2014-07-11 | Key device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329603.6A CN105304382A (en) | 2014-07-11 | 2014-07-11 | Key device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105304382A true CN105304382A (en) | 2016-02-03 |
Family
ID=55201498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410329603.6A Pending CN105304382A (en) | 2014-07-11 | 2014-07-11 | Key device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105304382A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111653446A (en) * | 2020-06-30 | 2020-09-11 | 成都极米科技股份有限公司 | Key structure |
-
2014
- 2014-07-11 CN CN201410329603.6A patent/CN105304382A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111653446A (en) * | 2020-06-30 | 2020-09-11 | 成都极米科技股份有限公司 | Key structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160203 |
|
| WD01 | Invention patent application deemed withdrawn after publication |