Isolation cover for isolating auxiliary contact, and relay
A technology of auxiliary contacts and isolation covers, applied in circuits, electrical switches, electrical components, etc., can solve problems such as affecting the stability and sensitivity of electronic products, and failure of auxiliary contacts.
Pending Publication Date: 2021-05-18
SUZHOU XINMAI INTELLIGENT ELECTRONICS TECH CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
At present, the common relays with auxiliary contacts in the market do not have any isolation measures between the main contacts and auxiliary contacts inside. It will be sputtered onto the auxiliary contacts, which will cause the auxiliary contacts to fail, which will directly affect the working stability and sensitivity of electronic products
Method used
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Embodiment Construction
[0025] The isolation cover and the relay for isolating auxiliary contacts of the present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.
[0026] see also figure 1 and figure 2 , an isolation cover for isolating the auxiliary contact, which is used to cover the outside of the auxiliary contact to isolate it from the external structure, which includes a base 41 that is cylindrical and penetrates up and down, along the top inner wall of the base 41. A cover body 42 for covering the auxiliary contacts is formed upwardly protruding from the edge, and the top plane of the cover body 42 is integrally extended upward to form an arc-blocking portion 45 that is a grid-shaped receiving space.
[0027] see also image 3 , the base 41 is in the shape of a rectangular parallelepiped, a rectangular annular step 48 is formed along the inner edge of the top, and two hollow covers 42 are formed upward along the inner edge...
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The invention relates to an isolation cover for isolating an auxiliary contact, and a relay. The relay at least comprises a shell, a middle frame and a magnetic conductive plate which can be fixedly connected in sequence and form a hollow part, at least one group of main contact components are accommodated in the shell, and a pushing mechanism and at least one group of auxiliary contact components are arranged on the magnetic conductive plate. An isolation cover which is used for covering the auxiliary contact components and isolating the auxiliary contact components from the main contact components is also fixed on the magnetic conductive plate, so that during actual working, splash generated during arcing ablation of the main contact components cannot be sputtered onto the auxiliary contact components; the splash is effectively isolated outside the auxiliary contact components and directly falls into the arc isolation part on the top of the isolation cover until the splash is condensed and fixed, effective contact and stability of the auxiliary contact components are effectively guaranteed, and the arc isolation part can also play a role in cutting an electric arc and enhancing the arc extinguishing capability. According to the invention, by arranging the isolation cover, the overall reliability and service life of the relay can be effectively improved.
Description
technical field [0001] The invention relates to the technical field of DC relays, in particular to an isolation cover for isolating auxiliary contacts and a relay using the same. Background technique [0002] The relay is an automatic control device with the function of using a small input current to control a large current output. When the input current reaches a certain value, it will trigger the work and make the output current change in a leap. It is mostly used for automatic mechanical and electrical integration. In the control system, it has the functions of simplifying the circuit structure, automatically converting the working mode of the circuit, and protecting or regulating the normal operation of the circuit, which can ensure safe operation, reduce production costs and certain energy-saving effects for systems or equipment using relays. At present, the common relays with auxiliary contacts in the market do not have any isolation measures between the main contacts ...
Claims
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IPC IPC(8): H01H9/34H01H45/02
CPCH01H9/34H01H45/02
Inventor 包锋
Owner SUZHOU XINMAI INTELLIGENT ELECTRONICS TECH CO LTD