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Notes and application scope of silicone pad waterproof touch switch

2024-04-17 2692

There are many types of touch switches, including those that are waterproof but not waterproof, as well as those with SMT, those with lights but not lights, and others. The packaging specifications and packaging of touch switches are diverse. The reason why it is called a silicone pad waterproof touch switch is because it changed the structure of the traditional waterproof touch switch using a pot piece as the conductor, and replaced the pot piece with silicone. Later, it was called a silicone pad waterproof touch switch.

Silicone, because it is silica gel or silica, has stable chemical properties and is resistant to high temperatures. Using it instead of the original pan blade can extend the service life of the touch switch, and many manufacturers have switched to using silicone instead of pan blades. Compared to pan shaped chips, silicone has stable chemical properties, high temperature resistance, soundlessness, and prolongs product life. However, this also increases the production cost of waterproof touch switches, and the price is relatively high.

Silicone rubber is a highly active adsorbent material, belonging to the amorphous state. It is insoluble in water and any solvent, non-toxic and odorless, with stable chemical properties. It does not react with any substance except strong bases and hydrofluoric acid. Using silicone as a press switch results in relatively stable performance and longer lifespan. Compared with traditional waterproof touch switches, silicone waterproof touch switches have a major advantage of not making any sound when pressed, so they are also known as silent waterproof touch switches. Its application range is also extremely wide. What are the application range and precautions for silicone pad waterproof touch switches?

Precautions for silicone pad waterproof touch switch

1. The silicone pad waterproof touch switch is designed and manufactured under the condition of DC resistance load. When using other loads, it should be acknowledged separately.

2. If the material around the silicone pad waterproof touch switch emits corrosive gas, it may cause poor contact and other phenomena, so it should be acknowledged before use.

3. Do not use for mechanical viewing purposes.

4. For the condition setting of silicone pad waterproof touch switch welding, internship batch production conditions should be provided.

5. When welding switch terminals, assuming a load is applied to the terminals, there will generally be loosening, deformation, and deterioration of electrical characteristics due to different conditions.

6. The use of silicone pads for waterproof touch switches should be avoided when operated from the side.

7. Attention should be paid to the intrusion of foreign objects outside of enclosed areas.

8. For the flat shaft type, try to press the center of the switch as much as possible. For the hinge structure, when pressed, the axis rod will move in the direction of movement. Please pay special attention.

9. When using silicone pads to waterproof and lightly touch the switch through-hole to print circuit boards and recommended circuit boards, the influence of thermal stress may change. Therefore, please acknowledge the welding conditions in advance.

10. When welding the switch twice, it should wait until the first welding returns to room temperature before proceeding. Continuing heating will cause peripheral deformation, loose terminals, falling, and a decrease in electrical characteristics.

11. When operating the switch, applying the specified load may cause damage to the silicone pad waterproof touch switch. Be careful not to apply the specified force on the switch.

Application scope of silicone pad waterproof touch switch

1. Communication products: building equipment, household landlines, mobile phones, telephones, car mounted telephones, PDAs, etc.

2. Computer products: recording pens, cameras, etc.

3. Digital products: digital SLRs, digital cameras, etc.

4. Medical equipment: blood pressure monitors, thermometers, hospital call systems, etc.

5. Household appliances: electronic fat scales, electronic body scales, televisions, rice cookers, electric fans, electronic kitchen scales, microwaves, etc.

6. Remote control: roll up doors, vehicles, household anti-theft products, etc.

7. Electronic toys.

8. Audio and video products: VCD, MP3/4, DVD, audio and video, etc.

9. Security products: monitors, visual walkie talkies, monitors, etc.

10. Fitness equipment: massage chairs, running machines, fat reducing dynamic bicycles, etc.

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