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Two common faults in microcomputer microwave ovens are mostly related to membrane switches or FPC printed circuits

Advantages: ① Strong processing adaptability, different textures can be pressed on its surface to improve the appearance of the material.

The secret of membrane switch principle The emergence of an industrial technology is often the result of the efforts of many people or even generations. The purpose of continuous research and deliberation is to bring people a more comfortable and convenient life. The birth of new industrial products is more subtle. They are integrated into people\'s daily life. You may not fully understand these products, but you will definitely encounter them in your life. If you know how they work, it can be helpful to solve some small problems. Here is a new type of industrial product, the editor will take you to understand its principle. ?? Membrane switch is an operating system that integrates key functions,

What are the uses (applications) of film panels Membrane switch and membrane panel are a new type of electronic complete product operating system that is popular in the world in recent years, which integrates decoration and functionality. It has been widely used in intelligent electronic measuring instruments, computer control of medical equipment, CNC machine tools,

Introduction of FPC membrane key switch Metaldomearray is a PET sheet with contacts (including metal shrapnel, also called dome), which is used as a switch on circuit boards such as PCB and FPC, and plays an important role between the user and the instrument. The role of the tactile switch. Compared with traditional silicone keys, membrane keys have better feel and longer life, which can indirectly improve the production efficiency of various types of switches using conductive films. The contacts on the membrane button are located on the conductive parts of the PCB (mostly above the gold fingers on the circuit board).

What is the difference between a membrane switch and a traditional switch? 1. Long service life: The working life of the membrane switch is dozens of times that of ordinary mechanical switches. The life of the membrane switch can reach more than 10,000 times, while the life of the traditional switch ranges from 100,000 to 200,000 times at most; 2. Small size and light weight: the total thickness of the membrane switch is generally between 1.0 and 1.5mm, which is only equivalent to The thickness of an ordinary aluminum panel 3. Good sealing;

Both tact switches and FPC membrane key switches are key switches 1. Membrane switch is a combination of switch buttons, panel function text, marks, trademarks, transparent windows and display windows, and adopts a multi-layer overall sealing structure, and has friction resistance, waterproof, dustproof, anti-harmful gas, and long service life. long and stable performance.

What are the methods of membrane switch proofing Membrane switches are operating systems that integrate key functions, indicating elements and instrument panels. It consists of a panel, an upper circuit, an isolation layer and a lower circuit. It has the characteristics of strict structure, beautiful appearance, good sealing performance, moisture resistance and long service life, and is widely used in electronic communication, electronic measuring instruments, industrial control, automobile industry, smart toys, household appliances and other fields.

Precautions when wiring the film panel The thin-film panel circuit is limited by parameters such as current, resistance, withstand voltage, insulation, and life. In order to ensure the function of the circuit, we must first ensure the quality of the silk-screen silver paste circuit. Since the selected thick wire mesh has serrated edges, it should be fully considered and paid attention to in the production of the membrane switch version, and it should be corrected and avoided in the production. According to practical experience, the following points should be paid attention to in the manufacture of thin-film panel circuits:

Introduction of FPC membrane key switch Membrane keys are the basic structure of \"key + membrane\", so the feel and characteristics of the keys depend on the design of the membrane keys. Considering the reliability of the separation and rebound of the switch contacts, the thickness of the film is generally selected at 0.-0.2mm as the best, too thin, the rebound is weak, and the contact separation is not sensitive. If the thickness is too thick, the response will be slow to increase the operation force. If the key body is larger, for example, when the diagonal length of a square key or the diameter of a circular key is larger than that of a circular key, use a film with a thickness of 0.15 or 0.2 mm.

The secret of membrane switch principle The emergence of an industrial technology is often the result of the hard work of many people or even several generations. The purpose of continuous research and deliberation is to bring people a more comfortable and convenient life. The birth of new industrial products is to be more subtly. They are integrated into people\'s daily life. You may not fully know these products, but you will definitely encounter them in life. If you know their principles, it is very helpful to solve some small problems. Here is a new type of industrial product , Xiaobian takes you to understand its principle. ??

How to repair the membrane panel membrane button panel if it is broken 1. Technically speaking, it is very simple to replace the membrane of the keyboard. You only need to use a screwdriver to remove all the screws on the back of the keyboard, and then open the back cover, you can see that the membrane is stuck on the back cover by the pile head. Remove the screw connecting the circuit board, and the membrane can be removed for replacement.