How is the waterproof micro switch detection and sealing waterproof test done?

Waterproof micro switch test and sealing waterproof test of micro switch, micro switch is a contact mechanism and quick-action mechanism with a small contact distance, which can be switched with a specified stroke and a specified force. The contact distance of the micro switch is relatively small, so the corresponding housing is generally relatively small. Most of these micro switches are used in the external environment, so they need to have good waterproof performance. Otherwise, once immersed in water, it will cause a short circuit failure and affect the use. Therefore, it is necessary to use a waterproof micro switch air tightness detector. Waterproof test, testing sealing performance. So what are the waterproof micro switches and sealed waterproof tests?

A waterproof micro switch is a pressure actuated snap switch, also known as a sensitive switch. Its working principle is that the external mechanical force acts on the action reed through the transmission element (push needle, button, lever, roller, etc.). After the energy is accumulated to the critical point, an instantaneous action is generated, so that the moving contact at the end of the action reed is quickly connected or disconnected with the fixed contact.

When the force acting on the transmission element of the waterproof micro switch is eliminated, the acting reed generates a reverse force. When the reverse stroke of the transmission element reaches the critical point of the reed, the reverse action is completed instantly. The micro switch has the advantages of small contact distance, short action stroke, small pressing force, and fast on-off. The moving speed of the moving contact has nothing to do with the moving speed of the transmission element. The basic type of micro switch is pushpin type, which can be derived from button short stroke type, button large stroke type, button extra stroke type, roller button type, reed roller type, lever roller type, short arm type, long arm type, etc. . Micro switches are used in electronic equipment and other automatic control and safety protection equipment that require frequent switching of circuits. Micro switches can be divided into large, medium and small. According to different needs, it can be divided into waterproof type (for liquid environment) and ordinary type. Waterproof micro switches connect two lines to provide switch control for appliances and machines.

The waterproof test of the waterproof micro switch and the air tightness test of the micro switch generally use a soft sealing material to seal the periphery of the bottom of the product at the inflation position at the bottom of the product. Waterproof micro switch test. If the air tightness of the product is good, there will be no outside air entering the interior, and the negative pressure will always be maintained at a certain value. If the sealing performance of the product is not good, that is to say, if there is a leak, the outside air will enter the interior, and the negative pressure will change. If you use the GL300 waterproof tester, it means there are continuous air bubbles in the tank. In this way, through the waterproof micro switch test and the waterproof test of sealing, it can be concluded whether the waterproof performance of the product meets the requirements.