CN206389345U - A kind of press-key structure based on pressure sensor - Google Patents
A kind of press-key structure based on pressure sensor Download PDFInfo
- Publication number
- CN206389345U CN206389345U CN201620974732.5U CN201620974732U CN206389345U CN 206389345 U CN206389345 U CN 206389345U CN 201620974732 U CN201620974732 U CN 201620974732U CN 206389345 U CN206389345 U CN 206389345U
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- Prior art keywords
- pressure sensor
- groove
- press
- key structure
- shaped
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- 239000000758 substrate Substances 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 19
- 230000003313 weakening effect Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a kind of press-key structure based on pressure sensor, including panel and pressure sensor, described pressure sensor is platen pressure sensor, and the pressure of button on panel is born at the two ends of pressure sensor bottom surface in the middle part of bearing bracket, pressure sensor top surface.Press-key structure component of the present utility model is less, simple in construction, is easily installed, and versatility is preferable.
Description
[technical field]
The utility model is related to press-key structure, more particularly to a kind of press-key structure based on pressure sensor.
[background technology]
At present most in the various product of man-machine interaction, there is tradition machinery button, also have in recent years popular condenser type by
Key.But both buttons have self shortcoming, fragile, non-watertight, and the function whether button is pressed can only be done.
Patent No. CN201520386164.2 utility model discloses a kind of pressure sensitive press-key structure and with this
The terminal device of pressure sensitive press-key structure, it is intended to which the mechanical key space-consuming solved in existing terminal device is larger, easy
Intake, complete machine structure intensity is weaker, reliability is poor and the easy technical problem for producing false touch.The utility model passes through a kind of letter
Branch beam type pressure sensitive component realizes pressure measxurement.When user applies pressure in pressing area, pressure passes through terminal device structure
Framework is transferred on the first fulcrum, in subsequent pressure transmission to elastic carrier plate.Simultaneously because support member is fixed on terminal device
On structural framing, the reaction force acts of user's applying power are on the second fulcrum, and pressure is concentrated on elastic carrier plate.Elasticity
Loading plate under pressure, deforms.Pressure sensor detects the deformation of elastic carrier plate, pressure sensor output pressure
Force signal to pressure sensitive is detected to export to processor after circuit, analyzing and processing and acted.The shortcoming of the utility model is to tie
Structure is complicated, is unfavorable for installing, and versatility is poor.
[content of the invention]
The technical problems to be solved in the utility model is to provide a kind of simple in construction, is easily installed, and versatility is preferable
The press-key structure based on pressure sensor.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is, a kind of based on pressure sensor
Press-key structure, including panel and pressure sensor, described pressure sensor are platen pressure sensor, pressure sensor bottom surface
Two ends the pressure of button on panel is born in the middle part of bearing bracket, pressure sensor top surface.
Above-described press-key structure, pressure sensor includes substrate and the detection circuit being printed on substrate, substrate bag
Straining concentration zone is included, detection circuit includes strain gauge element, and strain gauge element is arranged in the straining concentration zone of substrate.
Above-described press-key structure, substrate includes two coaxially arranged weakening grooves, and the region weakened between groove is institute
The straining concentration zone stated.
Above-described press-key structure, substrate includes two weakening grooves, weakens the groove that groove is V-shaped, two V-shaped
Groove is arranged symmetrically, and pinnacle is relative and separates, and described strain gauge element is arranged between the pinnacle of two V-shaped grooves.
Above-described press-key structure, weakening groove includes the groove of L-shaped, and the pod of L-shaped groove is arranged in two V-shaped ditches
The side of groove, the translot of L-shaped groove is arranged in the V word openings of V-shaped groove；One end of V-shaped groove and L-shaped groove
Bending part is connected.
Above-described press-key structure, detection circuit includes bridge-type measuring circuit, and bridge-type measuring circuit includes two contrasts
Element and the strain gauge element described in two, two strain gauge elements are arranged between the pinnacle of two V-shaped grooves, two contrast members
Part is arranged in the outside of two V-shaped grooves.
Above-described press-key structure, described weakening groove is the groove for the plate body for penetrating substrate.
Above-described press-key structure, described bracket and the bottom surface of panel are connected.
Above-described press-key structure, including circuit board, circuit board include and pressure sensor quantity identical hole, pressure
Force snesor is fixed on the top of hole；The edge at hole two ends is used as the bracket for supporting pressure sensor bottom surface two ends.
Above-described press-key structure, on circuit boards, the detection of pressure sensor is electric for the two ends welding of pressure sensor
Road is electrically connected with the circuit of circuit board.
Press-key structure component of the present utility model is less, simple in construction, is easily installed, and versatility is preferable.
[brief description of the drawings]
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the pressure sensor of the utility model embodiment 1.
Fig. 2 is the structural representation of the pressure sensor of the utility model embodiment 2.
Fig. 3 is the schematic diagram of the press-key structure of the utility model embodiment 3.
Fig. 4 is the schematic diagram of the press-key structure of the utility model embodiment 4.
Fig. 5 is the circuit board top view of the utility model embodiment 4.
Fig. 6 is the schematic diagram of the press-key structure of the utility model embodiment 5.
Fig. 7 is the top view of the circuit board of the utility model embodiment 5.
[embodiment]
The structure of the pressure sensor of the utility model embodiment 1 is as shown in figure 1, including substrate 100 and be printed on substrate 100
On detection circuit.
Substrate 100 has two weakening grooves 3 that are coaxial and being arranged symmetrically, weakens the groove that groove 3 penetrates the plate body of substrate 100.
Two regions weakened between groove 3 constitute the straining concentration zone 10 of substrate 100.
There is detection circuit (detection circuit is routine techniques, is not shown in figure) on substrate 100, detection circuit includes one
Strain gauge element 2, strain gauge element 2 is printed resistor, is printed on the straining concentration zone 10 of substrate 100.
The structure of the pressure sensor of the utility model embodiment 2 is as shown in Fig. 2 equally including substrate 100 and being printed on base
Detection circuit on plate 100.
There is detection circuit on substrate 100 (detection circuit is routine techniques, is not shown in figure).
Substrate 100 has two weakening grooves, and two weaken groove center and are arranged symmetrically, and it is the plate body for penetrating substrate 100 to weaken groove
Groove.
Weaken groove to be made up of the groove 4 of V-shaped and the groove 5 of L-shaped.The groove 4 of two V-shaped is arranged symmetrically, pinnacle 401
Relatively and separately, the region between pinnacle 401 constitutes straining concentration zone 10.Strain gauge element is arranged in the point of two V-shaped grooves 4
In straining concentration zone 10 between top 401.
The groove 4 of two V-shaped can be by stress concentration between pinnacle 401 region, improve detection sensitivity.
The pod 501 of L-shaped groove 5 is arranged in the side of two V-shaped grooves 4, and the translot 502 of L-shaped groove 5 is arranged in V
The V word openings of font groove 4, one end of V-shaped groove 4 is connected with the bending part of L-shaped groove 5.
L-shaped groove 5 plays Unloading Effect to the straining concentration zone in substrate 100, can prevent the stress outside substrate 100
Interference is played to the straining concentration zone in substrate 100.
The detection circuit of embodiment 2 includes bridge-type measuring circuit, and bridge-type measuring circuit includes two contrast Hes of strain gauge element 6
Two strain gauge elements 2, strain gauge element 2 and contrast strain gauge element 6 are printed resistor.
Two strain gauge elements 2 are abreast arranged in the straining concentration zone 10 between the pinnacle 401 of two V-shaped grooves 4, two
Individual contrast strain gauge element 6 is arranged in the unstrained concentration zones in the outside of two V-shaped grooves 4.
The press-key structure of the utility model embodiment 3 is as shown in figure 3, be a kind of press-key structure of mobile phone, including mobile phone face
The platen pressure sensor 12 of plate 11 and embodiment 1 or 2, the two ends of the bottom surface of pressure sensor 12 with the bottom surface of mobile phone faceplate 11 by connecting
The bracket 1101 connect is supported, the fingerprint sensor 13 of mobile phone be arranged in the main button 1102 of mobile phone faceplate and pressure sensor 12 it
Between, transmit the pressure of main button 1102 to the top surface of the middle part straining concentration zone of pressure sensor 12.
The press-key structure of the utility model embodiment 4 as shown in Figure 4 and Figure 5, including panel 11, platen pressure sensor 12
With circuit board 14, there is the hole 1401 of a rectangle on circuit board 14, pressure sensor 12 is arranged in the top of hole 1401；Hole
The edge at the two ends of hole 1401 is as the bracket at supporting pressure sensor 12 bottom surface two ends, and the two ends of pressure sensor 12 are welded on electricity
On road plate 14, the detection circuit of pressure sensor 12 is electrically connected by pad 1201 with the circuit on circuit board 14.On panel 11
The lower section of button 1102 have a rubber cushion 15, rubber cushion 15 is used to eliminating gap, and to the middle part straining concentration zone of pressure sensor 12
The downward pressure of top surface transmission button 1102.
The press-key structure of the utility model embodiment 5 as shown in Figure 6 and Figure 7, is there is two with the difference of embodiment 4
There are the hole 1401 for there are two rectangles on two buttons 1102, circuit board 14, two pressure on individual pressure sensor 12, panel 11
Sensor 12 is arranged in the top of two circular cavities 1401；The edge at the two ends of hole 1401 is used as supporting pressure sensor 12 bottom
The bracket at face two ends, the two ends of pressure sensor 12 are welded on circuit board 14, and the detection circuit of pressure sensor 12 passes through weldering
Disk 1201 is electrically connected with the circuit on circuit board 14.There is rubber cushion 15 lower section of button 1102 on panel 11, and rubber cushion 15 is used to disappear
The downward pressure of button 1102 is transmitted except gap, and to the top surface of the middle part straining concentration zone of pressure sensor 12.
Above example is also extended to many Key structure devices of two or more button.
The utility model above example component is less, and simple in construction, installation is easy, cost is low, and the spirit of button
Sensitivity is high, and uniformity is good.
Claims (10)
1. a kind of press-key structure based on pressure sensor, including panel and pressure sensor, it is characterised in that described pressure
Sensor is platen pressure sensor, and the two ends of pressure sensor bottom surface are held in the middle part of bearing bracket, pressure sensor top surface
By the pressure of button on panel.
2. press-key structure according to claim 1, it is characterised in that pressure sensor includes substrate and is printed on substrate
Detection circuit, substrate includes straining concentration zone, and detection circuit includes strain gauge element, and strain gauge element is arranged in the strain collection of substrate
Middle area.
3. press-key structure according to claim 2, it is characterised in that substrate includes two coaxially arranged weakening grooves, cuts
Region between weak groove is described straining concentration zone.
4. press-key structure according to claim 2, it is characterised in that substrate includes two weakening grooves, weakening groove is V-shaped
Groove, the groove of two V-shaped is arranged symmetrically, and pinnacle is relative and separates, and described strain gauge element is arranged in two V-shaped ditches
Between the pinnacle of groove.
5. press-key structure according to claim 4, it is characterised in that weakening groove includes the groove of L-shaped, L-shaped groove is indulged
Groove is arranged in the side of two V-shaped grooves, and the translot of L-shaped groove is arranged in the V word openings of V-shaped groove；V-shaped ditch
One end of groove is connected with the bending part of L-shaped groove.
6. press-key structure according to claim 2, it is characterised in that detection circuit includes bridge-type measuring circuit, bridge-type is surveyed
Measuring circuit includes two contrast elements and the strain gauge element described in two, and two strain gauge elements are arranged in two V-shaped grooves
Between pinnacle, two contrast elements are arranged in the outside of two V-shaped grooves.
7. the press-key structure according to claim 3 or 4, it is characterised in that described weakening groove is the plate body for penetrating substrate
Groove.
8. press-key structure according to claim 1, it is characterised in that described bracket and the bottom surface of panel are connected.
9. press-key structure according to claim 1, it is characterised in that including circuit board, circuit board includes and pressure sensing
Device quantity identical hole, pressure sensor is fixed on the top of hole；The edge at hole two ends is used as supporting pressure sensor
The bracket at bottom surface two ends.
10. press-key structure according to claim 9, it is characterised in that the two ends of pressure sensor are welded on circuit boards,
The detection circuit of pressure sensor is electrically connected with the circuit of circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620974732.5U CN206389345U (en) | 2016-08-29 | 2016-08-29 | A kind of press-key structure based on pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620974732.5U CN206389345U (en) | 2016-08-29 | 2016-08-29 | A kind of press-key structure based on pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206389345U true CN206389345U (en) | 2017-08-08 |
Family
ID=59485661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620974732.5U Expired - Fee Related CN206389345U (en) | 2016-08-29 | 2016-08-29 | A kind of press-key structure based on pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206389345U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113558529A (en) * | 2021-07-23 | 2021-10-29 | 深圳瑞湖科技有限公司 | Induction key and floor sweeping robot |
-
2016
- 2016-08-29 CN CN201620974732.5U patent/CN206389345U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113558529A (en) * | 2021-07-23 | 2021-10-29 | 深圳瑞湖科技有限公司 | Induction key and floor sweeping robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170808 |