CN211628940U - Light touch switch for high-humidity environment - Google Patents
Light touch switch for high-humidity environment Download PDFInfo
- Publication number
- CN211628940U CN211628940U CN202020340445.5U CN202020340445U CN211628940U CN 211628940 U CN211628940 U CN 211628940U CN 202020340445 U CN202020340445 U CN 202020340445U CN 211628940 U CN211628940 U CN 211628940U
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- China
- Prior art keywords
- switch
- shell
- transmission
- humidity environment
- inner cavity
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- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000007767 bonding agent Substances 0.000 abstract description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 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
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a light touch switch used in high humidity environment, which comprises a transmission shell, a switch shell, a sealing thin sheet arranged between the transmission shell and the switch shell, a trigger bar and a transmission mechanism arranged in the inner cavity of the transmission shell, and a light touch switch body arranged in the inner cavity of the switch shell; the transmission shell is hermetically connected with the switch shell, and the sealing sheet is used for hermetically separating the inner cavity of the transmission shell and the inner cavity of the switch shell; the light touch switch body is electrically connected with the lead, and the lead is led out to the outside of the switch shell through the threading hole. Because the inner chamber of transmission shell and the inner chamber of switch shell are separated to the sealing sheet, and the through wires hole passes through resin or other bonding agent again and seals, so the dabbing switch body in the switch shell inner chamber is in complete encapsulated situation to prevent effectively that aqueous vapor, steam from influencing the dabbing switch body work, and then ensure to dabble the switch and can be accurate work under high humid environment.
Description
Technical Field
The utility model relates to an electrical switch technical field, in particular to dab switch for high humid environment.
Background
The tact switch and the reed switch proximity switch are widely applied to the field of electronic appliances, are generally applied to the field of weak current and are used for signal control. After the reed switch proximity switch is subjected to sealing processes such as resin packaging and the like, the reed switch proximity switch can be applied to high-temperature and high-humidity environments with relatively severe environments to provide stable switch signals, but the reed switch proximity switch generally needs to depend on import and is high in cost, and domestic reed switches can only be applied to low-end products such as toy vehicles. The flip-flop is inexpensive, but can be used only in an environment where the environment is relatively good, and in a high-humidity environment, the flip-flop has poor sealing properties, and therefore, poor insulation or the like is likely to occur.
Therefore, under the condition that the performances of the light-touch switch and the reed switch proximity switch are the same, the cost of the reed switch is high, and the application environment of the light-touch switch is limited, so that the improvement on the existing light-touch switch is urgently needed, and the light-touch switch which can replace the reed switch proximity switch to be applied to the high-humidity environment is developed.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a light touch switch for high humidity environment, which is capable of operating normally in severe environment by providing good moisture-proof and moisture-proof performance.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a light touch switch for high humidity environment comprises a transmission shell, a switch shell, a sealing sheet arranged between the transmission shell and the switch shell, a trigger rod and a transmission mechanism arranged in the inner cavity of the transmission shell, and a light touch switch body arranged in the inner cavity of the switch shell; the transmission shell is hermetically connected with the switch shell, and the sealing sheet is used for hermetically separating the inner cavity of the transmission shell and the inner cavity of the switch shell; the light-touch switch body is electrically connected with the lead, and the lead is led out of the switch shell through the threading hole; the top of the transmission shell is provided with a through hole for the trigger rod to extend out, and the trigger rod cannot be separated from the inner cavity of the transmission shell; when pressure is applied to the trigger rod, the trigger rod transmits the pressure to the key of the light touch switch body through the transmission mechanism and the sealing sheet in sequence.
The transmission mechanism comprises a spring and a push rod, one end of the spring is pressed against the trigger rod, and the other end of the spring is sleeved on the push rod.
The push rod comprises a clamping part, a limiting shoulder and a pressure head which are sequentially connected, the spring is sleeved into the clamping part and abuts against and presses the limiting shoulder, and the pressure head faces the light touch switch body.
The trigger rod comprises a rod body and a limiting seat arranged at the bottom of the rod body, the limiting seat is used for limiting the rod body to be completely separated from the transmission shell, and the spring is pressed on the limiting seat.
The bottom of the transmission shell is provided with an installation step, the top of the switch shell is provided with a flange, and the flange compresses the sealing sheet on the bottom surface of the installation step.
The transmission shell and the switch shell are welded through ultrasonic waves.
The threading hole is sealed by filling resin.
The sealing thin sheet is a silica gel sheet.
The side wall of the transmission shell is provided with a connecting lug, and the connecting lug is provided with a mounting hole.
And the pin of the tact switch body is bent into a right angle.
Has the advantages that:
the utility model provides a dab switch for high humid environment, through pressing down the trigger bar, the trigger bar passes through drive mechanism with pressure transmission to sealed thin slice, the trigger bar loops through drive mechanism and sealed thin slice with pressure transmission to dabbing the button of switch body on, thereby realize dabbing the switch-on of switch, because the inner chamber of transmission shell and switch shell's inner chamber are separated to sealed thin slice, the through wires hole is sealed through resin or other bonding agents again, so dabbing the switch body in the switch shell inner chamber is in complete sealing state, thereby prevent the aqueous vapor effectively, the steam influence dabs switch body work, and then ensure to dabble the switch and can be under high humid environment accurate work.
Drawings
Fig. 1 is an assembly view of the tact switch for high humidity environment provided by the present invention.
Fig. 2 is an exploded view of the tact switch for high humidity environment according to the present invention.
Fig. 3 is a top view of the tact switch for high humidity environment provided by the present invention.
Detailed Description
The utility model provides a dab switch for high humid environment, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following refers to the drawing and the embodiment of lifting is the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
Referring to fig. 1-3, the utility model provides a light touch switch for high humidity environment, which comprises a transmission housing 1, a switch housing 2, a sealing sheet 3 arranged between the transmission housing 1 and the switch housing 2, a trigger bar 4 and a transmission mechanism 5 arranged in the inner cavity of the transmission housing, and a light touch switch body 6 arranged in the inner cavity of the switch housing; the transmission shell 1 is hermetically connected with the switch shell 2, and the sealing sheet 3 is used for hermetically separating the inner cavity of the transmission shell 1 and the inner cavity of the switch shell 2; the light touch switch body 6 is electrically connected with the lead 7, and the lead 7 is led out of the switch shell 2 through the threading hole 21; the top of the transmission shell 1 is provided with a through hole 11 for the trigger rod 4 to extend out, and the trigger rod cannot be separated from the inner cavity of the transmission shell 1. When pressure is applied to the trigger rod, the trigger rod 4 transmits the pressure to the key of the tact switch body 6 sequentially through the transmission mechanism 5 and the sealing sheet 3. Here, the tact switch body is a commercially available tact switch, and when the tact switch body is used, the tact switch body is pressed in the switch operation direction under the condition that the operation force is satisfied, so that the switch function is turned on and off.
Through pressing down trigger lever 4, trigger lever 4 transmits pressure to sealed thin slice 3 through drive mechanism 5, trigger lever 4 loops through drive mechanism 5 and sealed thin slice 3 with pressure transmission to dabbing switch body 6 on the button, thereby realize dabbing the switch-on of switch, because sealed thin slice 3 separates the inner chamber of transmission shell 1 and switch shell 2's inner chamber, through wires hole 21 is sealed through resin or other adhesives again, so dabbing switch body 6 in the 2 inner chambers of switch shell is in complete encapsulated situation, thereby prevent the aqueous vapor effectively, steam influences dabbing switch body work, and then ensure to dabble the switch and can be under high humid environment accurate work. In practical application, the utility model provides a dab switch fungible electric pressure cooker pot cover opens and shuts the tongue tube proximity switch who detects the position.
Here, the sealing sheet 3 is preferably a silicone sheet. The sealing sheet has good elastic deformation capability and good barrier effect on external moisture and steam.
Specifically, the transmission mechanism 5 includes a spring 51 and a push rod 52, one end of the spring 51 is pressed against the trigger rod 4, and the other end is sleeved on the push rod 52. When the trigger lever 4 is pressed, the spring 51 is compressed to form elastic force, the push rod 52 is pushed to touch and press the tact switch body 6 through the sealing sheet 3, and the tact switch body 6 is conducted; when the trigger lever is not pressed, the spring 51 is restored, and the trigger lever 4 is pushed to be restored.
Further, referring to fig. 2, the push rod 52 includes a snap-in portion 52.1, a limiting shoulder 52.2, and a pressure head 52.3, which are connected in sequence, the spring 51 is sleeved in the snap-in portion 52.1 and is pressed against the limiting shoulder 52.2, and the pressure head faces the tact switch body. Through the design, pressure transmission is stable, and the position that the pressure head touched and pressed the light touch switch is accurate, can not take place the skew.
Specifically, referring to fig. 1 and 2, the triggering rod 4 includes a rod body 4.1 and a limiting seat 4.2 disposed at the bottom of the rod body, the limiting seat 4.2 is used for limiting the rod body 4.1 to be completely separated from the transmission housing 1, and the spring 51 is pressed against the limiting seat 4.2.
Preferably, the bottom of the transmission housing 1 is provided with a mounting step 12, the top of the switch housing is provided with a flange 23, and the flange 23 presses the sealing sheet 3 on the bottom surface of the mounting step 12. Through setting up like this, the border of sealing sheet 3 takes place to shift or breaks away from, only can make the middle part deformation of sealing sheet 3, guarantees to dab the switch and uses for a long time, and sealing sheet still has better sealing performance to the inner chamber of switch shell.
Preferably, the transmission shell 1 and the switch shell 2 are welded through ultrasonic waves, the transmission shell and the switch shell are tightly connected, and the sealing performance is good. Of course, other bonding methods may be used for fixing.
Preferably, the side wall of the transmission housing 1 is provided with a connecting lug 13, and the connecting lug is provided with a mounting hole 14. In actual assembly, pass the mounting hole and twist the screw that the electrical apparatus locks through the screw, easy operation is convenient.
In this embodiment, the threading hole 21 penetrates through the bottom surface of the inner cavity of the switch casing 2, so that the lead 7 needs to be vertically arranged to penetrate through the threading hole, and the pin 6.1 of the tact switch body 6 is bent into a right angle and lengthened, thereby facilitating welding with the lead.
It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.
Claims (10)
1. A light-touch switch for high-humidity environment is characterized by comprising a transmission shell, a switch shell, a sealing sheet arranged between the transmission shell and the switch shell, a trigger rod and a transmission mechanism arranged in an inner cavity of the transmission shell, and a light-touch switch body arranged in the inner cavity of the switch shell; the transmission shell is hermetically connected with the switch shell, and the sealing sheet is used for hermetically separating the inner cavity of the transmission shell and the inner cavity of the switch shell; the light-touch switch body is electrically connected with the lead, and the lead is led out of the switch shell through the threading hole; the top of the transmission shell is provided with a through hole for the trigger rod to extend out, and the trigger rod cannot be separated from the inner cavity of the transmission shell.
2. The tact switch for high humidity environment according to claim 1, wherein the transmission mechanism comprises a spring and a push rod, one end of the spring is pressed against the trigger rod, and the other end is sleeved on the push rod.
3. The tact switch for high humidity environment according to claim 2, wherein the push rod comprises a snap-in portion, a limit shoulder and a pressure head, the snap-in portion, the limit shoulder and the pressure head are sequentially connected, the spring is sleeved in the snap-in portion and abuts against the limit shoulder, and the pressure head faces the tact switch body.
4. The tact switch for high humidity environment according to claim 2, wherein the trigger bar comprises a bar body and a limiting seat arranged at the bottom of the bar body, the limiting seat is used for limiting the bar body to be completely separated from the transmission housing, and the spring is pressed against the limiting seat.
5. The tact switch for high humidity environment according to claim 1, wherein the transmission case is provided at the bottom with a mounting step, and the switch case is provided at the top with a flange pressing a sealing sheet on the bottom surface of the mounting step.
6. The tact switch for high humidity environment according to claim 1, wherein the transmission housing and the switch housing are welded by ultrasonic wave.
7. The tact switch for high-humidity environment according to claim 1, wherein the threading hole is sealed by filling resin.
8. The tact switch for high-humidity environment according to claim 1, wherein the sealing sheet is a silicone sheet.
9. The tact switch for high humidity environment according to claim 1, wherein the side wall of the transmission housing is provided with a connection lug, and the connection lug is provided with a mounting hole.
10. The tact switch for high-humidity environment according to claim 1, wherein the pins of the tact switch body are bent at right angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020340445.5U CN211628940U (en) | 2020-03-17 | 2020-03-17 | Light touch switch for high-humidity environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020340445.5U CN211628940U (en) | 2020-03-17 | 2020-03-17 | Light touch switch for high-humidity environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211628940U true CN211628940U (en) | 2020-10-02 |
Family
ID=72621702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020340445.5U Expired - Fee Related CN211628940U (en) | 2020-03-17 | 2020-03-17 | Light touch switch for high-humidity environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211628940U (en) |
-
2020
- 2020-03-17 CN CN202020340445.5U patent/CN211628940U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201002 |