Development of tongue-reed relays
Since the birth of the spring touch in the 1930s, the spring relay has been continuously developed. With the continuous improvement of industrial level, China began to develop spring contact and spring relay in the 1060s. Due to the limitation of the manufacturing technology level at that time, the main production was large lingual reed contacts. In the 1980s, in order to improve the quality of the spring contacts and the spring relay, and constantly adapt to the demand of the market, China introduced the manufacturing technology and equipment from the 1980s, built a new factory, and began to produce small spring contacts. So far, it has officially produced two series (SH series and CM series), with these spring contacts for secondary development of the spring relay, yellow switch has been widely used in power system, roommate, chemical industry, office automation and other automation devices. Different degrees of social benefits and economic benefits have been achieved.
The role of the tongue reed relay
Dry spring relay can reflect voltage, current, power and current polarity, and is widely used in detection, automatic control and computer control technology. In addition, the dry spring relay can also be driven by a permanent magnet to reflect non-electrical signals, used as limit and stroke control and non-power detection. The main component is the dry spring water level signal of the relay, which is suitable for the water level control and water level alarm of the water tanks, water towers and water pools in industrial and civil buildings. The dry reed spring relay is also widely used in many demanding automotive safety equipment (such as the height of sensitive brake fluid); Besides, it is also used in many medical instruments, such as burning equipment, pacemaker and other medical electronic devices. On these devices, the dry reed spring with the relay isolated the small leakage current.
Characteristics of the tongue spring relay
The characteristics of dry spring relay are: simple structure, small volume, small absorption power, high sensitivity, general absorption and release time are within 0.5~2 ms, and the contact seal, not affected by dust, moisture and harmful gas pollution, the moving motion quality is small, the contact electric life can reach about 107 times.
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