Types of new relays
Release Time：
2022-10-26 15:20
Source：
The new relay refers to the electromagnetic relay developed and produced in order to meet the new special requirements and meet the use under special environmental conditions. Its main characteristics are small volume, light weight, vibration resistance, shock resistance, load range from low level load to 5A, 28V rated load, and the product has reliability index (failure rate level) requirements. The product adopts resistance fusion welding or laser fusion welding sealing air-tight sealing structure, mainly used in electronic control equipment signal transmission and weak current power switching.
New electromagnetic relays include: non - magnetic holding relay and magnetic holding relay. Non-magnetic holding relay is a monostable relay. The output state of the contact of the relay coil changes under the action of the specified voltage excitation, but the output state of the contact recovers to the initial state after the coil excitation is withdrawn. Magnetic retention relay is a kind of bistable relay with single coil structure and double coil structure. The coil excitation is electric pulse mode. For the relay with single coil structure, when the coil changes its contact output state under the action of the specified voltage excitation, the contact can maintain the existing state after the coil excitation is withdrawn. To change the output state of the contact, a specified reverse voltage excitation should be added to the coil. For relay with double coil structure, when the first coil changes its contact output state under the action of the specified voltage excitation, the contact can maintain the existing state after the coil excitation is withdrawn. To change the contact output state, it is necessary to add the specified voltage excitation to the second coil.
Because of the special performance of the new relay, its detection methods and requirements are different from those of conventional relays. The main detection contents include electrical parameter detection, electrical performance index detection, mechanical performance index detection and physical performance index detection.
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