In modern home decoration design, in addition to the selection of large household appliances and furniture which is a key part of the entire interior decoration, there are also some small appliances that are indispensable for every family life. Among them, a magnetic switch is a must-have in every home. So what is the principle of a magnetic switch? Next, the editor will introduce to you the principle of a magnetic switch and related content. Interested friends, please continue reading.

1. What is a magnetic switch?

A magnetic proximity switch is a proximity switch. Proximity switches are one of many types in the sensor family. It adopts advanced electromagnetic working principle and is a position sensor. It can change the positional relationship between the sensor and the object, and convert non-electrical or electromagnetic quantities into the required electrical signals for control or measurement.

Magnetic proximity switches are used in aerospace, aerospace and industrial applications. In daily life, such as automatic doors in hotels, restaurants, and garages, automatic hot air blowers are used. In terms of security and theft, such as data files, accounting, finance, museums, finance, etc., it is usually equipped with an anti-theft device composed of various proximity switches. In measurement technology, such as length, position measurement; in control technology, such as displacement, speed, acceleration measurement and control, a large number of proximity switches are also used.

2. What is the principle of a magnetic switch?

A magnetic switch is a closed metal or plastic tube equipped with one or more reed switches, and then the tube passes through one or more floats. The ball is inserted, the ring magnet is inside, and the floating ring is controlled by the fixed ring. At the relevant position of the reed switch, the float floats up and down within a certain range. A magnet within the float is used to attract the contacts of the reed switch to create an opening and closing action.

3. Principle of magnetic switch - what are the classifications of magnetic switches?

SMC magnetic switches can be divided into contact type and non-contact type, a series of magnetic switches without signs or A, B , C, E, Z are touch type, F, G, H, J, K, M, P, Y are non-contact type. There are contact types without leakage current. Non-contact magnetic switches have a semi-permanent life because there are no moving parts, but there is leakage current. SMC magnetic switches can also be divided into two-wire systems, three-wire systems (also divided into two types: NPN and PNP) and four-wire systems (less commonly used). In addition, the standard wire length of the magnetic switch is 0.5 meters. But you can also choose 3 meters or 5 meters.

3. Principle of magnetic switch - what brands of magnetic switches are there

1. Flying Eagle

Flying Eagle is a well-known trademark in China, which integrates manufacturing, scientific research, A large enterprise integrating import and export trade, services and real estate development and management. In long-term practice, Feidiao Electric has taken the initiative to understand and cultivate the market with advanced concepts and actions, created a brand new market, expanded new concepts, established a nationwide marketing network, and formed strong brand competitiveness. .

2. Siemens

Siemens was founded in Germany in 1847 and is one of the largest electromechanical/electrical engineering and electronics companies in the world. With offices in Berlin and Munich, Siemens is a global leader in electrical and electronic engineering, focusing on four business areas: Industry, Energy, Healthcare, Infrastructure and Cities.

3. Schneider

With a glorious history of more than 170 years, Schneider is a global expert in energy efficiency management, focusing on power and automation management. In fiscal year 2012, Schneider's total global revenue reached 24 billion euros and it had more than 140,000 employees in more than 100 countries.

4. Panasonic

Panasonic is a Fortune 500 company, a world brand, a large multinational company, and one of the world's largest electronics manufacturers. There are more than 230 companies worldwide with more than 290,493 employees. Among them, there are more than 54,000 people in China. Total sales in 2001 exceeded US$61 billion, ranking 26th among the world's top 500 manufacturing companies.

5. Chint

Founded in 1984, Chint is China's largest manufacturer and seller of low-voltage electrical appliances, a well-known trademark in China, and a high-tech enterprise. Mainly engaged in: a wide range of services in power, construction, metallurgy, petrochemical, water conservancy, aerospace, electronics and other industries; product scope is industrial electrical equipment R&D and manufacturing services, electrical R&D and manufacturing transmission and distribution, construction and consumer electronics product R&D and Production support services, research and development of photovoltaic cells and module systems.

The above is the entire content of the magnetic switch principle introduced by the editor.