CN220710167U - Miniature key switch board with feedback touch sense - Google Patents
Miniature key switch board with feedback touch sense Download PDFInfo
- Publication number
- CN220710167U CN220710167U CN202322238597.0U CN202322238597U CN220710167U CN 220710167 U CN220710167 U CN 220710167U CN 202322238597 U CN202322238597 U CN 202322238597U CN 220710167 U CN220710167 U CN 220710167U
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- layer
- circuit
- switch module
- panel
- miniature
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- 239000010410 layer Substances 0.000 claims abstract description 49
- 239000012790 adhesive layer Substances 0.000 claims abstract description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 13
- 239000010935 stainless steel Substances 0.000 claims abstract description 13
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 235000012431 wafers Nutrition 0.000 claims abstract description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052709 silver Inorganic materials 0.000 claims abstract description 5
- 239000004332 silver Substances 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 19
- 230000008719 thickening Effects 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000012634 fragment Substances 0.000 claims description 2
- 229920000297 Rayon Polymers 0.000 claims 4
- 230000001739 rebound effect Effects 0.000 abstract description 3
- 239000003292 glue Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Push-Button Switches (AREA)
Abstract
The miniature key switch board with the feedback touch sense comprises a panel layer, an isolation layer, a circuit layer and a back adhesive layer which are sequentially bonded from top to bottom, wherein a plurality of control circuits are arranged on the circuit layer, each control circuit comprises a first circuit, a second circuit and a switch module, a plurality of key positions for pressing the switch module are arranged on the panel layer in a protruding mode, and each switch module comprises an elastic sheet, a first conductive end electrically connected with the first circuit and a second conductive end electrically connected with the second circuit; the upper part of the base is provided with a mounting groove, and the elastic sheet is formed by overlapping two silver-coated stainless steel wafers from top to bottom in the mounting groove. The elastic sheet consists of two stainless steel wafers, and has the advantages of strong conductivity, long service life, good rebound effect and the like; and when the user presses the key position, force feedback is generated by the two stainless steel wafers, so that the touch feeling of the user during operation is increased, and the use experience of the user is effectively improved.
Description
Technical Field
The utility model relates to the technical field of switches, in particular to a miniature key switch board with feedback touch sense.
Background
The membrane switch is an operating system integrating key functions, indicating elements and instrument panels and is widely applied to the fields of electronic communication and electronic measurement instruments, industrial control, medical equipment, automobile industry, intelligent toys, household appliances and the like.
The liquid-proof membrane switch disclosed in the Chinese patent with reference to patent number CN202222707493.5 generally adopts a single spring to control the on-off of a circuit, and the tension of the single spring is lost after long-time use, so that the resilience of the single spring is insufficient, the resilience is not easy to rebound, and the use is affected.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a miniature key switch board with feedback touch sense.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a take feedback sense of touch's miniature key switch board, includes from last panel layer, isolation layer, circuit layer, the gum layer of bonding down in proper order, be equipped with a plurality of control circuit on the circuit layer, control circuit includes first circuit, second circuit, switch module, the arch is equipped with a plurality of key position that is used for pressing switch module on the panel layer, its characterized in that:
the switch module comprises a base, an elastic sheet, a transparent protective film, a first conductive end electrically connected with the first circuit and a second conductive end electrically connected with the second circuit; the upper part of the base is provided with a mounting groove, the elastic sheet is formed by overlapping two silver-coated stainless steel wafers in the mounting groove from top to bottom, and one end of the first conductive end extends into the mounting groove and is electrically connected with the elastic sheet;
one end of the second conductive end extends into the mounting groove and is positioned right below the elastic sheet, and the elastic sheet can deform to contact the second conductive end when the key position is pressed; the top of the elastic sheet is provided with a thickening convex block, the top end of the thickening convex block extends out of the mounting groove, and the transparent protective film is fixedly arranged on the base and wraps the thickening convex block and seals the opening of the mounting groove.
In the utility model, each key position corresponds to one switch module, and the isolating layer is provided with a plurality of avoidance holes for avoiding the key positions and the switch modules.
In the utility model, two inserting parts are arranged on the periphery of the stainless steel wafer, two inserting grooves are arranged in the mounting groove, and one inserting part is inserted into one inserting groove.
In the utility model, the top of the base is fixedly connected with a pressing frame for pressing the outline edge of the transparent protective film.
In the utility model, the pressing frame comprises a first frame body and a second frame body which are integrally formed, the first frame body is welded on the base, the inside of the first frame body is a containing cavity for containing the transparent protective film, the second frame body is pressed on the top surface of the outline edge of the transparent protective film, and the middle part of the second frame body is an opening for the middle part of the transparent protective film and the thickening convex block to protrude upwards outside the pressing frame.
In the utility model, the isolation layer comprises a first adhesive layer, an insulating sheet and a second adhesive layer which are sequentially bonded from top to bottom, the top surface of the insulating sheet is bonded and connected with the panel layer through the first adhesive layer, and the bottom surface of the insulating sheet is bonded and connected with the circuit layer through the second adhesive layer.
In the utility model, the first adhesive layer and the second adhesive layer are respectively provided with a first avoiding through hole for avoiding the key position and the switch module.
In the utility model, the insulating sheet is provided with a second avoidance hole for avoiding the key position and the switch module.
In the utility model, an insulating spacer is arranged in the second avoidance hole, and the insulating spacer is positioned between the key position and the switch module.
In the utility model, the insulating isolation sheet is integrally connected with the insulating sheet through the flexible connecting sheet.
The utility model has the beneficial effects that: the elastic sheet is formed by overlapping two silver-coated stainless steel wafers in the mounting groove from top to bottom, and has the advantages of strong conductivity, long service life, good rebound effect and the like; and when a user presses the key, force feedback is generated by the two stainless steel wafers, so that the touch feeling of the user during operation is increased, and the use experience of the user is effectively improved. The mounting groove on the base is completely sealed by the transparent protective film, so that the switch module has good waterproof performance, and the reliability of the switch module is improved.
Drawings
The utility model is further described below with reference to the drawings and embodiments:
FIG. 1 is an exploded view of the present embodiment;
FIG. 2 is a schematic diagram of a circuit layer structure;
FIG. 3 is an exploded view of the barrier layer;
FIG. 4 is a top view of the switch module;
fig. 5 is a schematic diagram of the internal structure of the switch module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-5, a miniature key switch board with feedback touch comprises a panel layer 1, an isolation layer, a circuit layer 2 and a back adhesive layer 3 which are sequentially bonded from top to bottom, wherein the panel layer 1 is made of PC material, and the back adhesive layer 3 is made of double-sided adhesive, and is used for bonding the switch board on a casing of equipment. The circuit layer 2 adopts the PCB board, be equipped with a plurality of control circuit on the circuit layer 2, control circuit includes first circuit 21, second circuit 22, switches module 4 with first circuit 21 and second circuit 22 activity switch on, the arch is equipped with a plurality of button position 11 that is used for pressing switch module 4 on the panel layer 1, button position 11 is formed by panel layer 1 embossing, every button position 11 corresponds one switch module 4, be equipped with on the isolation layer and dodge the hole is dodged to a plurality of button position 11 and switch module 4, every dodge the hole and correspond a button position 11 and a switch module 4. Pressing the key 11 causes the key 11 to press the switch module 4 to actively conduct the first circuit 21 and the second circuit 22, thereby causing the control circuit to trigger a signal to be transmitted to the equipment, and realizing the control purpose of the equipment.
Further, the switch module 4 includes a base 41, a spring piece 42, a transparent protective film 43, a first conductive end 44 electrically connected to the first circuit 21, and a second conductive end 45 electrically connected to the second circuit 22, where the base 41 is fixed on the circuit layer 2, and both the second conductive end 45 and the first conductive end 44 are disposed on the outer side of the base 41; the spring plate 42 is disposed in the mounting slot 411, one end of the second conductive end 45 extends into the mounting slot 411 and is located right below the spring plate 42, one end of the first conductive end 44 is a first power connection portion 441, and one end of the first conductive end 44 extends into the mounting slot 411 and is electrically connected with the spring plate 42; one end of the second conductive end 45 is a second power connection portion 451, and one end of the second conductive end 45 extends into the mounting slot 411 and is located under the elastic sheet 42, and when the key 11 is pressed, the elastic sheet 42 can deform to contact the second conductive end 45, so that the second conductive end 45 and the first conductive end 44 are conducted, and the first circuit 21 and the second circuit 22 are conducted; the top of shell fragment 42 is equipped with the thickening lug 40 that the top stretches out outside mounting groove 411, transparent protection film 43 adopts the butt fusion mode to set firmly on base 41 and wrap up thickening lug 40 and seal the opening of mounting groove 411, transparent protection film 43 through the butt fusion in on base 41 to with mounting groove 411 is totally closed, makes switch module 4 have better waterproof performance, improves switch module 4's reliability.
As a preferred embodiment, the spring plate 42 is formed by overlapping two silver-coated stainless steel wafers 421 in the mounting slot 411 from top to bottom, and has strong conductivity, long service life and good rebound effect; when the key 11 is pressed to make the transparent protective film 43 and the thickening protrusion 40 drive the elastic sheet 42 to deform downwards, the elastic sheet 42 is movably conducted with the first conductive end 44, so that the control circuit sends a conducting signal; when the key 11 is released, the elastic sheet 42 returns, and the connection between the elastic sheet 42 and the first conductive end 44 is disconnected, so that the control circuit triggers the disconnection signal. The stainless steel disc 421 is a dome sheet, and this embodiment improves the service life of the switch module 4 by setting two stainless steel discs 421, and makes the feedback touch feel stronger when the spring sheet 42 deforms the switch module 4.
As a preferred embodiment, two symmetrically arranged inserting portions 422 are disposed on the outer periphery of the stainless steel disc 421, two inserting grooves are disposed in the mounting slot 411, and one inserting portion 422 is inserted into one inserting groove, so that the purpose of positioning and mounting the elastic sheet 42 in the mounting slot 411 is achieved. In this embodiment, a fastening portion 412 is disposed on a groove wall of the mounting groove 411, and the bottom surface of the fastening portion 412 and the bottom surface of the groove of the mounting groove 411 form the insertion groove.
As a preferred embodiment, the top of the base 41 is fixedly connected with the pressing frame 46 in a welding manner, the pressing frame 46 includes a first frame 461 and a second frame 462 that are integrally formed, the first frame 461 is welded on the base 41, the inside of the first frame 461 is a containing cavity for containing the transparent protective film 43, the second frame 462 is pressed on the top surface of the outline edge of the transparent protective film 43, and the middle part of the second frame 462 is an opening for the middle part of the transparent protective film 43 and the thickened convex block 40 to protrude upwards outside the pressing frame 46, so that the key position 11 can normally drive the switch module 4 to work. The mounting quality of the transparent protective film 43 can be improved through the pressing frame 46, the probability of falling off and separating the outline edge of the transparent protective film 43 from the base 41 is reduced, and the reliability of the switch module 4 is ensured.
As a preferred embodiment, the bottom surface of the base 41 is provided with a first opening corresponding to the position under the first power receiving portion 441 and a second opening corresponding to the position under the second power receiving portion 451, the first opening is covered and sealed by the first power receiving portion 441, the second opening is covered and sealed by the second power receiving portion 451, and the first opening and the second opening are used for allowing the first power receiving portion 441 and the second power receiving portion 451 to breathe and dissipate heat.
As a preferred embodiment, the isolation layer comprises a first adhesive layer 5, an insulating sheet 6 and a second adhesive layer 7 which are sequentially adhered from top to bottom, the top surface of the insulating sheet 6 is adhered and connected with the panel layer 1 through the first adhesive layer 5, and the bottom surface is adhered and connected with the circuit layer 2 through the second adhesive layer 7; the insulating sheet 6 is a PET film.
As a preferred embodiment, in order to avoid that the glue of the first glue layer 5 and the second glue layer 7 affects the normal pressing of the switch module 4 by the key position 11 and reduce the feedback touch feeling of the switch module 4, the first glue layer 5 and the second glue layer 7 are respectively provided with a first avoiding through hole 100 for avoiding the key position 11 and the switch module 4.
In a preferred embodiment, in order to avoid the insulating sheet 6 from reducing the feedback touch feeling of the switch module 4, the insulating sheet 6 is provided with a second avoidance hole 200 for avoiding the key 11 and the switch module 4. Further, an insulating spacer 61 is disposed in the second avoidance hole 200, and the insulating spacer 61 is located between the key position 11 and the switch module 4, so as to perform an insulating and isolating function and improve the working stability of the switch. In this embodiment, the first avoidance hole and the second avoidance hole 200 form an avoidance hole disposed on the isolation layer.
As a preferred embodiment, the insulating spacer 61 is integrally connected to the insulating sheet 6 by a flexible connecting sheet 62, and in this example, the insulating spacer 61 and the flexible connecting sheet 62 are die-cut on the insulating sheet 6.
The foregoing is only a preferred embodiment of the present utility model, and all technical solutions for achieving the object of the present utility model by substantially the same means are included in the scope of the present utility model.
Claims (10)
1. The utility model provides a take feedback sense of touch's miniature key switch board, includes from last panel layer (1), isolation layer, circuit layer (2), gum layer (3) that bond down in proper order, be equipped with a plurality of control circuit on circuit layer (2), control circuit includes first circuit (21), second circuit (22), switch module (4), the arch is equipped with a plurality of button position (11) that are used for pressing switch module (4) on panel layer (1), its characterized in that:
the switch module (4) comprises a base (41), an elastic sheet (42), a transparent protective film (43), a first conductive end (44) electrically connected with the first circuit (21) and a second conductive end (45) electrically connected with the second circuit (22); the upper part of the base (41) is provided with a mounting groove (411), the elastic sheet (42) is formed by overlapping two silver-coated stainless steel wafers (421) in the mounting groove (411) from top to bottom, and one end of the first conductive end (44) extends into the mounting groove (411) and is electrically connected with the elastic sheet (42);
one end of the second conductive end (45) extends into the mounting groove (411) and is positioned right below the elastic sheet (42), and the elastic sheet (42) can deform to contact the second conductive end (45) when the key position (11) is pressed; the top of shell fragment (42) is equipped with thickening lug (40) that top stretched out outside mounting groove (411), transparent protection film (43) set firmly on base (41) and parcel thickening lug (40) and seal the opening of mounting groove (411).
2. The miniature keyswitch panel with feedback touch of claim 1, wherein: each key position (11) corresponds to one switch module (4), and a plurality of avoidance holes for avoiding the key positions (11) and the switch modules (4) are formed in the isolation layer.
3. The miniature keyswitch panel with feedback touch of claim 1, wherein: the periphery of the stainless steel wafer (421) is provided with two inserting parts (422), two inserting grooves are formed in the mounting groove (411), and one inserting part (422) is inserted into one inserting groove.
4. The miniature keyswitch panel with feedback touch of claim 1, wherein: the top of the base (41) is fixedly connected with a pressing frame (46) for pressing the outline edge of the transparent protective film (43).
5. The miniature push-button switch panel with feedback touch as set forth in claim 4, wherein: the pressing frame (46) comprises a first frame body (461) and a second frame body (462) which are integrally formed, the first frame body (461) is welded on the base (41), the first frame body (461) is internally provided with a containing cavity for containing the transparent protective film (43), the second frame body (462) is pressed on the top surface of the outline edge of the transparent protective film (43), and the middle part of the second frame body (462) is an opening for the middle part of the transparent protective film (43) and the thickening convex block (40) to protrude upwards outside the pressing frame (46).
6. The miniature keyswitch panel with feedback touch of claim 1, wherein: the isolation layer includes from last first viscose layer (5), insulating piece (6), second viscose layer (7) of bonding down in proper order, insulating piece (6) top surface is connected with panel layer (1) bonding through first viscose layer (5), and the bottom surface is connected with circuit layer (2) bonding through second viscose layer (7).
7. The miniature push-button switch panel with feedback touch as set forth in claim 6, wherein: the first adhesive layer (5) and the second adhesive layer (7) are respectively provided with a first avoiding through hole (100) for avoiding the key position (11) and the switch module (4).
8. The miniature push-button switch panel with feedback touch as set forth in claim 6, wherein: the insulating sheet (6) is provided with a second avoidance hole (200) for avoiding the key position (11) and the switch module (4).
9. The miniature push-button switch panel with feedback touch of claim 8, wherein: an insulating spacer (61) is arranged in the second avoidance hole (200), and the insulating spacer (61) is positioned between the key position (11) and the switch module (4).
10. The miniature keyswitch pad with feedback touch of claim 9, wherein: the insulating isolation sheet (61) is connected with the insulating sheet (6) through a flexible connecting sheet (62) in an integrated mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322238597.0U CN220710167U (en) | 2023-08-19 | 2023-08-19 | Miniature key switch board with feedback touch sense |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322238597.0U CN220710167U (en) | 2023-08-19 | 2023-08-19 | Miniature key switch board with feedback touch sense |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220710167U true CN220710167U (en) | 2024-04-02 |
Family
ID=90444372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322238597.0U Active CN220710167U (en) | 2023-08-19 | 2023-08-19 | Miniature key switch board with feedback touch sense |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220710167U (en) |
-
2023
- 2023-08-19 CN CN202322238597.0U patent/CN220710167U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |