CN205880818U - Self -power keyboard - Google Patents
Self -power keyboard Download PDFInfo
- Publication number
- CN205880818U CN205880818U CN201620359588.4U CN201620359588U CN205880818U CN 205880818 U CN205880818 U CN 205880818U CN 201620359588 U CN201620359588 U CN 201620359588U CN 205880818 U CN205880818 U CN 205880818U
- Authority
- CN
- China
- Prior art keywords
- mechanical axis
- key body
- self
- electric energy
- moving spring
- 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 utility model relates to a self -power keyboard relates to the computer equipment field. Include button, key disc plate and be located the circuit board between button, the key disc plate. The button includes key cap, mechanical axis, the key body and reset spring that from the top connected gradually, and the circuit board includes taking care of of PCB circuit board, piezoceramics piece and electric energy and memory circuit, and take care of and the memory circuit of piezoceramics piece, electric energy are located the PCB circuit board, and the piezoceramics piece is connected with the memory circuit electricity with taking care of of electric energy. The one end and the key cap fixed connection of mechanical axis, the other end of mechanical axis can slide at the second mounting hole, and reset spring's one end is supported with the mechanical axis that is located the second mounting hole and is leaned on, and reset spring's the other end supports with the piezoceramics piece and leans on. Through the piezoceramics piece, turn into electrical energy storage with mechanical energy and for the keyboard power supply in super capacitor, remove the trouble of charging or changing the battery from, very big practical value has.
Description
Technical field
This utility model relates to computer equipment field, particularly to a kind of self-powered keyboard.
Background technology
Along with the development of the short distance wireless communication technology such as bluetooth, RFID, Wi-Fi etc., do not have between keyboard disk body and computer
Directly physical connection, the Wireless Keyboard that is attached by wireless communication technology and PC obtain the favor of people more and more
And popularize rapidly.But its shortcoming is also apparent from: be charged it owing to not electrically connecting with computer, Wireless Keyboard relies on
Be powered in battery, directly results in it rear current cost increase, flying power low, limit the development of Wireless Keyboard.
Summary of the invention
The technical problems to be solved in the utility model is: in order to overcome the deficiencies in the prior art, and this utility model provides one
Plant self-powered keyboard.
This utility model solves its technical problem and be the technical scheme is that a kind of self-powered keyboard, including button, key
Plate and the circuit board between button, finger-board.
Button includes keycap, mechanical axis, key body and the back-moving spring being sequentially connected with from top to down, and the upper end of key body has covered
Keycap, one end of mechanical axis is connected with keycap, and the other end of mechanical axis is connected with key body, and the lower end of key body is provided with back-moving spring,
One end of back-moving spring and mechanical axis against, the other end of back-moving spring and circuit board against.
Circuit board includes conditioning and storage circuit, piezoelectric ceramic piece, the electric energy of PCB, piezoelectric ceramic piece and electric energy
Conditioning and storage circuit be positioned in PCB, and the conditioning of piezoelectric ceramic piece and electric energy and store circuit and electrically connect.
Conditioning and the storage circuit of electric energy include that diode VD1～VD4 and super capacitor C, diode VD1 with VD2 connect
Connecting and form the first half rectifier bridges, diode VD3 Yu VD4 is connected in series to form the second half rectifier bridges, the first half rectifier bridges and the
2 half rectifier bridge parallel connections form rectifier bridges and are also connected with super capacitor C, one end of piezoelectric ceramic piece (symbol is HTD) and the first half
Rectifier bridge connects, the other end of piezoelectric ceramic piece and the second half rectifier bridge connections.
One end of mechanical axis is fixing with keycap to be connected, and the other end of mechanical axis can slide at the second installing hole, reset bullet
One end of spring be positioned at the mechanical axis of the second installing hole against, the other end of back-moving spring and piezoelectric ceramic piece against.
The beneficial effects of the utility model are, a kind of self-powered keyboard of the present utility model, by piezoelectric ceramic piece, by machine
Tool can be converted into electric energy and be stored in super capacitor and power to keyboard, removes charging from or changes the trouble of battery, having the biggest
Practical value.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is this utility model overall structure schematic diagram；
Fig. 2 is this utility model side-looking structural representation；
Fig. 3 is conditioning and the storage circuit diagram of this utility model electric energy.
In figure:
Keycap 110；First installing hole 111；Cap body 112；The brim of a hat 113；Hole 114, location；Rubber cushion 115；Key body 120；Second
Installing hole 121；Locating dowel 122；Contact 123；Back-moving spring 130；Mechanical axis 140；PCB 210；Contact hole 211；Piezoelectricity is made pottery
Ceramics 220；The conditioning of electric energy and storage circuit 230.
Detailed description of the invention
Presently in connection with accompanying drawing, this utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification,
Basic structure of the present utility model is described the most in a schematic way, and therefore it only shows the composition relevant with this utility model.
A kind of self-powered keyboard of the present utility model, including button 100, circuit board 200 and finger-board 300.Refer to Fig. 1
And Fig. 2, button 100 is connected with circuit board 200, and circuit board 200 is arranged at finger-board 300.
Button 100 includes keycap 110, mechanical axis 140, key body 120 and the back-moving spring 130 being sequentially connected with from top to down.
Wherein, the upper end of key body 120 has covered keycap 110, and one end of button pillar 140 is connected with keycap 110, mechanical axis 140 another
One end is connected with key body 120；The lower end of key body 120 is provided with back-moving spring 130, and one end of back-moving spring 130 is supported with mechanical axis 140
Lean on, the other end of back-moving spring 130 and circuit board 200 against.
Keycap 110 includes cap body 112 and the brim of a hat 113, and the brim of a hat 113 is located on cap body 112 and is formed for covering in key body 120
Cap chamber, cap body 112 is provided with increase sense of touch rubber cushion 115, cap body 112 is positioned at the one side in cap chamber and offers for installing
First installing hole 111 of mechanical axis 140.
Key body 120 includes the second installing hole 121 and contact 123, and the second installing hole 121 is through key body 120 and includes
Lower two parts, the upper part of the second installing hole 121 is used for installing mechanical axis 140, and the lower part of the second installing hole 121 is used for installing
Back-moving spring 130, key body 120 is electrically connected with circuit board 200 by contact 123, is used for triggering push button signalling.
Wherein, one end of mechanical axis 140 is fixing with keycap 110 to be connected, and the other end of mechanical axis 140 can be installed second
Slide in hole 121, one end of back-moving spring 130 be positioned at another against, back-moving spring 130 of the mechanical axis of the second installing hole 121
One end and circuit board 200 are against, it is achieved the keycap 110 reset on key body 120.
Preferably, first installing hole the 111, second installing hole 121 and mechanical axis 140 are " ten " font structure.Cap body 112
Offering hole 114, location, key body 120 is provided with locating dowel 122, hole, location 114 and locating dowel 122 location matches, it is possible to realize
Keycap 110 is the most fixing with key body 120.
Circuit board 200 includes PCB 210, piezoelectric ceramic piece 220 and the conditioning of electric energy and storage circuit 230, PCB
Wiring board 210 is provided with the contact hole 211 for electrically connecting with contact 123.Piezoelectric ceramic piece 220, the conditioning of electric energy and storage electricity
Road 230 is positioned in PCB 210, and piezoelectric ceramic piece 220 electrically connects with conditioning and the storage circuit 230 of electric energy.The tune of electric energy
Reason and storage circuit 230 include diode VD1～VD4 and super capacitor C, and wherein, diode VD1 with VD2 is connected in series to form
The first half rectifier bridges, diode VD3 Yu VD4 is connected in series to form the second half rectifier bridges；The first half rectifier bridges and the second half rectifications
Bridge parallel connection forms rectifier bridge and is connected with super capacitor C；One end of piezoelectric ceramic piece 220 (symbol is HTD) and diode VD1,
VD2 connects, and the other end of piezoelectric ceramic piece 220 is connected with diode VD3, VD4.
One end of back-moving spring 130 be positioned at the mechanical axis of the second installing hole 121 against another of, back-moving spring 130
End with piezoelectric ceramic piece 220 against, by back-moving spring 130 to piezoelectric ceramic piece 220 transmit pressure realize deformation produce positive and negative
Electric charge.
When button is stressed and is pressed, back-moving spring 130 is compressed, and causes piezoelectric ceramics 220 by back-moving spring 130
The pressure of transmission produces deformation, and according to the piezoelectric effect of piezoelectric ceramics 220, two surfaces of the crystal in piezoelectric ceramics 220 produce
The positive and negative charge of equivalent, thus create high pressure, the signal of telecommunication of low stream, becoming unidirectional current after rectified bridge rectification, storage is to super
In level electric capacity C.Owing to super capacitor C capacity is big, it is little to leak electricity, meet the requirement powered to keyboard.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related work people
Member can carry out various change and amendment completely in the range of without departing from this utility model technological thought.This reality
The content being not limited in description by novel technical scope, it is necessary to determine its technology according to right
Property scope.
Claims (6)
1. a self-powered keyboard, it is characterised in that: include button, finger-board and the circuit between button, finger-board
Plate；
Described button includes keycap, mechanical axis, key body and the back-moving spring being sequentially connected with from top to down, the upper end shield of described key body
Being covered with described keycap, one end of described mechanical axis is connected with described keycap, and the other end of described mechanical axis is connected with described key body,
The lower end of described key body is provided with described back-moving spring, and one end of described back-moving spring and described mechanical axis are against, described reset bullet
The other end of spring and described circuit board against；
Described circuit board includes the conditioning of PCB, piezoelectric ceramic piece and electric energy and stores circuit, described piezoelectric ceramic piece,
The conditioning of described electric energy and storage circuit are positioned in described PCB, and the conditioning of described piezoelectric ceramic piece and described electric energy
With storage circuit electrical connection；
Conditioning and the storage circuit of described electric energy include diode VD1～VD4 and super capacitor C, described diode VD1 and VD2
Being connected in series to form the first half rectifier bridges, described diode VD3 Yu VD4 is connected in series to form the second half rectifier bridges, and described first
Half rectifier bridge forms rectifier bridge with described the second half rectifier bridge parallel connections and is connected with described super capacitor C, described piezoelectric ceramic piece
The one end of (symbol is HTD) is connected with described the first half rectifier bridges, and the other end of described piezoelectric ceramic piece is the second half whole with described
Stream bridging connects.
2. self-powered keyboard as claimed in claim 1, it is characterised in that: described keycap includes cap body and the brim of a hat, the described the brim of a hat
It is located on described cap body to be formed for covering in the cap chamber of described key body, described cap body is provided with the rubber cushion by increase sense of touch,
Described cap body is positioned at the one side in cap chamber and offers the first installing hole for installing described mechanical axis.
3. self-powered keyboard as claimed in claim 1, it is characterised in that: described key body includes the second installing hole and contact, institute
Stating the second installing hole and through described key body and include upper and lower two parts, the upper part of described second installing hole is used for installing described
Mechanical axis, the lower part of described second installing hole is used for installing described back-moving spring, and described key body passes through described contact with described
Circuit board electrically connects.
4. self-powered keyboard as claimed in claim 3, it is characterised in that: described PCB is provided with for touching with described
The contact hole of sheet electrical connection.
5. self-powered keyboard as claimed in claim 3, it is characterised in that: one end of described mechanical axis is fixing with described keycap even
Connecing, the other end of described mechanical axis can slide at described second installing hole, one end of described back-moving spring be positioned at described the
Described mechanical axis in two installing holes against, the other end of described back-moving spring and described piezoelectric ceramic piece against.
6. self-powered keyboard as claimed in claim 2, it is characterised in that: described cap body offers hole, location, on described key body
It is provided with locating dowel, hole, described location and described locating dowel location matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359588.4U CN205880818U (en) | 2016-04-26 | 2016-04-26 | Self -power keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359588.4U CN205880818U (en) | 2016-04-26 | 2016-04-26 | Self -power keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205880818U true CN205880818U (en) | 2017-01-11 |
Family
ID=57687622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620359588.4U Expired - Fee Related CN205880818U (en) | 2016-04-26 | 2016-04-26 | Self -power keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205880818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020034263A1 (en) * | 2018-08-16 | 2020-02-20 | 深圳市唯能联科技有限公司 | Self-powered button and remote control |
| CN111681897A (en) * | 2020-06-16 | 2020-09-18 | 西南大学 | Passive wireless mechanical key |
-
2016
- 2016-04-26 CN CN201620359588.4U patent/CN205880818U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020034263A1 (en) * | 2018-08-16 | 2020-02-20 | 深圳市唯能联科技有限公司 | Self-powered button and remote control |
| CN111681897A (en) * | 2020-06-16 | 2020-09-18 | 西南大学 | Passive wireless mechanical key |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20170426 |