Introduction: Since the invention of electrical appliances, switches have come into being. People on the production, control and use of electrical energy for nearly a century, people for the switch panel research is always ongoing. Thus the birth of a variety of different switches, today I'm here to tell you about the switch panel is a kind of switch panel, called membrane switch panel. This switch due to the compact size, press the comfortable, easy to replace and low cost and so on by the majority of people's pursuit of characteristics.
What is a membrane switch panel?
Membrane switch panel is an operating system that integrates key functions, indicating elements, and instrument panels. It consists of four parts: the panel, the upper circuit, the isolation layer, and the lower circuit. Press the membrane switch, the upper circuit contacts downward deformation, and the lower circuit of the pole plate contact conduction, finger release, the upper circuit contacts rebound back, the circuit is disconnected, the circuit triggers a signal. Membrane switch structure is rigorous, beautiful appearance, good sealing. It has the characteristics of moisture-proof and long service life. Widely used in electronic communications, electronic measurement instruments, industrial control, medical equipment, automotive industry, intelligent toys, household appliances and other fields.
Membrane Switch Panel Working Principle
When the panel is not pressed, the membrane switch is in a conventional state, its upper and lower contacts are disconnected, the isolation layer of the upper and lower lines play a role in isolation; when the panel is pressed, the upper circuit contacts downward deformation, and the lower line reintegration and make the line conduction, conduction of the line to the external connections When the panel is pressed down, the upper circuit contacts are deformed downward and rejoined with the lower circuit to make the line conductive, and the line after conduction gives the external connected instrument (substrate) a signal to realize its corresponding function; when the finger is released, the upper circuit contacts are rebounded back, the circuit is disconnected, and the circuit triggers a signal.
Use
Membrane switch panels are widely used in intelligent medical instruments, electronic measuring instruments, CNC machine tools, computer control, copiers, post and telecommunications, microwave ovens, refrigerators, washing machines, fans, video games and other household appliances and a variety of industrial goods.
Advantages
Membrane switch panel also has a novel, beautiful appearance, followed by its light weight, small size, thin thickness, more conducive to the laptop computer keyboard to the short, thin, light and highly intelligent direction, oil, dust, moisture and hazardous gases, acid and alkali shock resistance and sealing, resistance to bending and folding, the use of a long life, it is the use of usually up to one million times. The use of the switch can usually reach more than one million times, the contacts are straight touch, the amount of wear and tear is very small; and screen printing of the contacts can constitute a satisfactory thickness, and in the silver paste contacts in the additional printing of a layer of conductive carbon, in order to reach the intention of the high wear-resistant and self-lubricating, and thus the life of the membrane switch than the mechanical contact switch to improve dozens of times more.
Conclusion: The above is what I want to tell you today about the membrane switch panel of all the content, I believe that after you read the editor's account of the membrane switch panel of this information has a simple right? Due to the novel design of the membrane switch panel and low production costs, is now widely used in portable calculators and home remotes. In addition, the membrane switch panel for the power consumption is still quite low, so in the home remote control a battery can continue to work for a year or two long.
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