CN212010801U - Membrane switch with light prompt function - Google Patents
Membrane switch with light prompt function Download PDFInfo
- Publication number
- CN212010801U CN212010801U CN202021090834.3U CN202021090834U CN212010801U CN 212010801 U CN212010801 U CN 212010801U CN 202021090834 U CN202021090834 U CN 202021090834U CN 212010801 U CN212010801 U CN 212010801U
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- CN
- China
- Prior art keywords
- jack
- membrane switch
- strip
- elastic strip
- light
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a membrane switch with light prompt facility belongs to membrane switch technical field. Including the PCB bottom plate, a display panel, the shaft-like clockwork spring that touches, two elastic strips and installation cover, the installation is covered and has been seted up a jack, the bottom of jack has the switch touch multitouch of fixing on the PCB bottom plate, spiral helicine guide slot has on the inner wall of jack, it inserts and establishes in the jack to trigger the strip, touch have on the clockwork spring with guide slot complex protruding muscle, two elastic strip symmetric distribution, the one end fixed connection of elastic strip is on touching the clockwork spring, the other end of elastic strip is fixed on the installation cover, the up end of installation cover has two and is in the normally open pilot light source on same straight line. The utility model has the advantages of can carry out light suggestion etc. to pressing the position.
Description
Technical Field
The utility model belongs to the technical field of the membrane switch, a membrane switch who has light prompt facility is related to.
Background
After the membrane switch is pressed, the pressing structure is generally prompted through the hand feeling of the elastic strip when the elastic strip is pressed down by fingers, but the pressing strength and the deformation of the elastic strip are not well controlled, and the situation that the pressing force is too large (not beneficial to the service life of the membrane switch) or the pressing force is small (the membrane switch cannot be triggered) often occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem that prior art exists, provide a membrane switch with light prompt facility, the utility model aims to solve the technical problem how to make membrane switch have the prompt facility to pressing the position.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a membrane switch with light prompt facility, its characterized in that, includes PCB bottom plate, display panel, shaft-like clockwork spring, two elastic strips and installation cover of touching, the installation has been covered and has been seted up a jack, the bottom of jack has the switch touch multitouch of fixing on the PCB bottom plate, spiral helicine guide slot has on the inner wall of jack, touch the clockwork spring and insert and establish in the jack, touch have on the clockwork spring with guide slot complex protruding muscle, two elastic strips symmetric distribution, the one end fixed connection of elastic strip is on touching the clockwork spring, the other end of elastic strip is fixed on the installation cover, the up end of installation cover has two and is in the normally open pilot light source on same straight line.
In the above membrane switch with the light prompting function, the display panel has a light-transmitting area above the trigger bar.
Before pressing, because be in two banding instruction light sources on the straight line and just in time sheltered from by the bullet strip, the luminous intensity that makes the light zone on the display panel permeate through is very weak, when pressing the back, the rotation of certain angle is taken on when triggering the strip and moving down, the distortion takes place for the one end that makes bullet strip and trigger the strip be connected, the position of bullet strip and light source staggers, make light zone display be stronger luminance, thereby the condition that the suggestion operator pressed, can judge when luminance changes and reach for pressing the position, thereby avoid pressing excessively to the damage of part, also can avoid pressing the pressure less and can't trigger.
Because the deformation of the elastic strip is not single bending but twisting, the restoring force of the elastic strip is larger, and permanent deformation is not easy to form.
Drawings
Fig. 1 is a cross-sectional view of a membrane switch.
Fig. 2 is a schematic perspective view of the trigger spring.
Fig. 3 is a top view of the mounting cup.
In the figure, 1, a PCB bottom plate; 2. a display panel; 21. a light-transmitting region; 3. touching the clockwork spring; 4. a spring bar; 5. mounting a cover; 6. a jack; 7. a rib is protruded; 8. an indication light source; 9. and a switch contact block.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, fig. 2 and fig. 3, including PCB bottom plate 1, display panel 2, shaft-like trigger strip 3, two elastic strips 4 and installation cover 5, a jack 6 has been seted up on installation cover 5, the bottom of jack 6 has the switch touch multitouch 9 of fixing on PCB bottom plate 1, helical guide slot has on the inner wall of jack 6, trigger strip 3 inserts and establishes in jack 6, trigger strip 3 is last to have with guide slot complex protruding muscle 7, two elastic strips 4 symmetric distribution, the one end fixed connection of elastic strip 4 is on touching spiral spring 3, the other end of elastic strip 4 is fixed on installation cover 5, the up end of installation cover 5 has two normally open indicating light source 8 that are in same straight line.
The display panel 2 has a light-transmitting area 21 above the trigger spring 3.
Before pressing, because two banding instruction light sources 8 that are in the straight line just in time are sheltered from by bullet strip 4, the luminous intensity that makes light transmission zone 21 on display panel 2 see through is very weak, when pressing the back, the rotation of certain angle is attached when triggering strip 3 and moving down, the distortion takes place for the one end that makes bullet strip 4 and trigger strip 3 be connected, bullet strip 4 staggers with the position of light source, make light transmission zone 21 show for stronger luminance, thereby the condition that the suggestion operator pressed, can judge when luminance changes and reach for pressing the position, thereby avoid pressing excessively the damage to the part, also can avoid the pressing force less and can't trigger.
Because the deformation of the elastic strip 4 is not single bending but twisting, the restoring force of the elastic strip 4 is larger, and permanent deformation is not easy to form.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (2)
1. A membrane switch with light prompt function is characterized in that the membrane switch comprises a PCB bottom plate (1), a display panel (2), a rod-shaped touch spring (3), two spring strips (4) and a mounting cover (5), the mounting cover (5) is provided with an insertion hole (6), the bottom of the insertion hole (6) is provided with a switch contact block (9) fixed on the PCB bottom plate (1), the inner wall of the jack (6) is provided with a spiral guide groove, the touch spring (3) is inserted in the jack (6), the touch spring (3) is provided with a convex rib (7) matched with the guide groove, the two spring strips (4) are symmetrically distributed, one end of the elastic strip (4) is fixedly connected to the touch spring (3), the other end of the elastic strip (4) is fixed on the mounting cover (5), the upper end face of the mounting cover (5) is provided with two normally-open indicating light sources (8) which are positioned on the same straight line.
2. The membrane switch with light prompt function according to claim 1, wherein the display panel (2) has a light-transmitting area (21) above the trigger spring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021090834.3U CN212010801U (en) | 2020-06-12 | 2020-06-12 | Membrane switch with light prompt function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021090834.3U CN212010801U (en) | 2020-06-12 | 2020-06-12 | Membrane switch with light prompt function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212010801U true CN212010801U (en) | 2020-11-24 |
Family
ID=73402238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021090834.3U Expired - Fee Related CN212010801U (en) | 2020-06-12 | 2020-06-12 | Membrane switch with light prompt function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212010801U (en) |
-
2020
- 2020-06-12 CN CN202021090834.3U patent/CN212010801U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20201124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |