CN207852538U - The thin film switch of hot and humid environment - Google Patents
The thin film switch of hot and humid environment Download PDFInfo
- Publication number
- CN207852538U CN207852538U CN201820201447.9U CN201820201447U CN207852538U CN 207852538 U CN207852538 U CN 207852538U CN 201820201447 U CN201820201447 U CN 201820201447U CN 207852538 U CN207852538 U CN 207852538U
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Abstract
The utility model discloses a kind of thin film switches of hot and humid environment, including constituting switch main body by panel and bottom plate, the panel and bottom plate are made of stainless steel plate, the switch main body is equipped with key area and viewing area, the key area includes from top to bottom panel, button, key activities space, electrostatic stratum reticulare, shrapnel fixed bed, shrapnel, pcb layer, bottom-thickened layer, bottom plate successively, and the panel is equipped with the key hole of corresponding button；The viewing area includes the peep hole of penetrating switch main body, is equipped with upper and lower diaphragm in the peep hole, the upper diaphragm is connected to the bottom of panel by fluid sealant, and lower diaphragm is connected to the bottom of bottom-thickened layer by fluid sealant；The periphery of the switch main body is brushed with three-proofing coating.The panel and bottom plate of the utility model are made of stainless steel plate, and structural strength is high, and moisture resistant, resistance to corrosion are strong.
Description
Technical field
The utility model is related to a kind of thin film switches, and in particular to a kind of thin film switch of hot and humid environment.
Background technology
Thin film switch is an operating system for integrating keypress function, indicator elment, instrument panel.By panel, on
Circuit, separation layer, four part of lower circuit composition.Thin film switch is pressed, the contact of upper circuit deforms downwards, the pole plate with lower circuit
Contact conducting, after finger unclamps, upper circuit contact rebound is returned, and circuit disconnects, and a signal is triggered in circuit.It is widely used in electricity
The fields such as sub- communication, the instrument of electronic surveying, Industry Control, Medical Devices, auto industry, intelligent toy, household electrical appliance.With
The increase of application range, many extreme environments（Such as the mine of high temperature and humidity）The middle equipment used all uses thin film switch conduct
Switching device, existing thin film switch can not be used for a long time process in such extreme environment, and service life is shorter, replace more
Frequently.
Utility model content
A kind of thin film switch suitable for being used under hot and humid environment provided by the utility model.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of thin film switch of hot and humid environment, including switch main body is constituted by panel and bottom plate, the panel and
Bottom plate is made of stainless steel plate, the switch main body be equipped with key area and viewing area, the key area by up to
Under successively include panel, button, key activities space, electrostatic stratum reticulare, shrapnel fixed bed, shrapnel, pcb layer, bottom-thickened
Layer, bottom plate, the panel are equipped with the key hole of corresponding button；The viewing area includes the peep hole of penetrating switch main body,
Upper and lower diaphragm is equipped in the peep hole, the upper diaphragm is connected to the bottom of panel by fluid sealant, and lower diaphragm is logical
Cross the bottom that fluid sealant is connected to bottom-thickened layer；The periphery of the switch main body is brushed with three-proofing coating.
In the present invention, the bottom of the button is equipped with LED light source, and LED light source is mounted on the upper table of pcb layer
Face.
In the present invention, the periphery of the button is filled with silica gel panel layer.
In the present invention, the periphery in the key activities space is filled with silica gel keys lamella.
In the present invention, the periphery of the shrapnel is filled with circuit tab layer.
In the present invention, the bottom of the panel is equipped with screw, and screw connects through entire switch main body and with nut
It connects.
The utility model has the beneficial effects that：The panel and bottom plate of the utility model are made of stainless steel plate, and structure is strong
Degree is high, and moisture resistant, resistance to corrosion are strong；The utility model is equipped with thickening layer in bottom and periphery is also brushed with three-proofing coating, has
The superior functions such as very outstanding high temperature-proof, Water-proof and oil-proof, dust-proof, moisture proof, though under the hot and humid environments such as mine according to
So have many advantages, such as that excellent working performance and service life are very long.
Description of the drawings
The utility model is further illustrated with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the rearview of the present embodiment；
Fig. 2 is side view explosion schematic diagram.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Referring to figs. 1 to Fig. 2, the present embodiment is disclosed is a kind of thin film switch of hot and humid environment, including by face
Plate 1 and bottom plate 2 constitute switch main body, and the panel 1 and bottom plate 2 are made of stainless steel plate, and the thickness of panel 1 is more than 3mm, bottom
The thickness of plate 2 is more than 2mm.The switch main body be equipped with key area and viewing area, the key area from top to bottom according to
It is secondary to add including panel 1, button 3, key activities space 4, electrostatic stratum reticulare 5, shrapnel fixed bed 6, shrapnel 7, pcb layer 8, bottom
Thick-layer 9, bottom plate 2.The panel 1 is equipped with the key hole of corresponding button 3, and the top of the button 3 passes through key hole and is higher than
The upper surface of panel 1, the button 3 are inverted T-shaped, and bottom periphery periphery is filled with silica gel panel layer 16, the silica gel panel
It is connected by layers of two-sided 11 between layer 16 and panel 1.The periphery in the key activities space 4 is filled with silica gel keys lamella 17,
The silica gel keys lamella 17 is common layer of silica gel and is equipped with the double faced adhesive tape of 0.125mm thickness on two sides.The periphery of the shrapnel 7 is filled with
Circuit tab layer 18, the circuit tab layer 18 can PC plate and two sides be equipped with 0.225mm thickness double faced adhesive tape.The viewing area
Peep hole 11 including penetrating switch main body, the peep hole 11 is interior to be equipped with upper and lower diaphragm 12,13, the upper diaphragm 12
The bottom of panel 1 is connected to by fluid sealant, lower diaphragm 13 is connected to the bottom of bottom-thickened layer 9 by fluid sealant, described
Diaphragm is made of transparent PC materials；The periphery of the switch main body is brushed with three-proofing coating 14, and the three-proofing coating 14 is brushed except face
Switch main body periphery other than plate 1.
As preferred embodiment, the bottom of the button 3 is equipped with LED light source 15, and LED light source 15 installs assist side
The upper surface of layer 8, so that button 3 has brightness, it is easy to operation.The bottom of the panel 1 is equipped with screw 19, and screw 19 is through whole
A switch main body is simultaneously connect with nut, and entire switch main body connective stability is high, will not deform.The electrostatic stratum reticulare 5 and circuit
Plate layer 8 is respectively equipped with conducting wire, and conducting wire is connect across bottom plate 2 with external equipment.
The foregoing is merely the preferred embodiments of the utility model, as long as realizing the object of the invention with essentially identical means
Technical solution belong within protection scope of the present invention.
Claims (6)
1. a kind of thin film switch of hot and humid environment, including by panel（1）And bottom plate（2）Constitute switch main body, the face
Plate（1）And bottom plate（2）It is made of stainless steel plate, the switch main body is equipped with key area and viewing area, and feature exists
In：The key area includes from top to bottom panel successively（1）, button（3）, key activities space（4）, electrostatic stratum reticulare（5）, bullet
Piece fixed bed（6）, shrapnel（7）, pcb layer（8）, bottom-thickened layer（9）, bottom plate（2）, the panel（1）Correspondence is equipped with to press
Key（3）Key hole；The viewing area includes the peep hole of penetrating switch main body（11）, the peep hole（11）Inside it is equipped with
Upper and lower diaphragm（12、13）, the upper diaphragm（12）It is connected to panel by fluid sealant（1）Bottom, lower diaphragm（13）
It is connected to bottom-thickened layer by fluid sealant（9）Bottom；The periphery of the switch main body is brushed with three-proofing coating（14）.
2. a kind of thin film switch of hot and humid environment according to claim 1, it is characterised in that：The button（3）
Bottom be equipped with LED light source（15）, LED light source（15）Mounted on pcb layer（8）Upper surface.
3. a kind of thin film switch of hot and humid environment according to claim 1, it is characterised in that：The button（3）
Periphery be filled with silica gel panel layer（16）.
4. a kind of thin film switch of hot and humid environment according to claim 1, it is characterised in that：The key activities
Space（4）Periphery be filled with silica gel keys lamella（17）.
5. a kind of thin film switch of hot and humid environment according to claim 1, it is characterised in that：The shrapnel（7）
Periphery be filled with circuit tab layer（18）.
6. a kind of thin film switch of hot and humid environment according to claim 1, it is characterised in that：The panel（1）
Bottom be equipped with screw（19）, screw（19）It connect through entire switch main body and with nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820201447.9U CN207852538U (en) | 2018-02-05 | 2018-02-05 | The thin film switch of hot and humid environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820201447.9U CN207852538U (en) | 2018-02-05 | 2018-02-05 | The thin film switch of hot and humid environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207852538U true CN207852538U (en) | 2018-09-11 |
Family
ID=63411264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820201447.9U Active CN207852538U (en) | 2018-02-05 | 2018-02-05 | The thin film switch of hot and humid environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207852538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112530729A (en) * | 2020-12-01 | 2021-03-19 | 广州市嘉艺电子薄膜开关有限公司 | Membrane switch with normally closed switch function |
-
2018
- 2018-02-05 CN CN201820201447.9U patent/CN207852538U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112530729A (en) * | 2020-12-01 | 2021-03-19 | 广州市嘉艺电子薄膜开关有限公司 | Membrane switch with normally closed switch function |
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