Novel air switch

Abstract

The invention relates to the field of air switches, and particularly discloses a novel air switch which comprises a shell, an input terminal with an input sleeve, an output terminal with an output sleeve, a conducting strip, an overload protection bimetallic strip, a rotating piece, a wire and a mechanical locking handle assembly. The thermal inductance device is provided with a controller, a display screen, a temperature sensor and an electromagnetic pull rod assembly. According to the invention, the input sleeve is arranged on the input terminal, the output sleeve is arranged on the output terminal, and the input sleeve and the output sleeve of which the end parts are exposed wrap the end part of the wire and are fixed through the screw, so that the wiring condition can be conveniently observed, the wiring end can be reinforced, virtual connection is avoided, and the wiring quality is improved. The heat dissipation effect of the wiring end is improved; and the temperature of the wiring end and the external temperature of the air switch can be monitored in real time through the thermal inductance device, so that internal and external dual overheating protection is performed on the air switch, and a temperature value is fed back in real time.

Description

technical field [0001] The invention belongs to the field of air switches, in particular to a novel air switch. Background technique [0002] The air switch is a commonly used electrical component. The existing air switch usually has two functions of short-circuit protection and overheat protection. The overheat protection unit bends the bimetal sheet when it is heated, so that its end touches the trigger end of the tow button. Trigger it, and then disconnect its internal connection circuit, but the bimetal structure usually only operates when its internal current is overloaded, but in the process of actual use, when the connection is heated due to poor contact and other reasons , the bimetal strip cannot sense the temperature at the contact point outside the air switch, and the air switch will not trip at this time, so it is easy to be burned; it is also impossible to monitor the temperature around the air switch in real time during use. [0003] In addition, the terminal ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of air switch, so as to overcome the difficulty of observing the terminal of the existing air switch, poor durability, poor heat dissipation effect, unable to monitor the temperature in real time and the overheating protection unit cannot cope with the air switch external or connection. Defects of timely power off for protection due to temperature rise

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