Low-voltage electrical equipment change-over switch

Abstract

The invention provides a low-voltage electrical equipment change-over switch which comprises a support, a gear, a rotating shaft, a rotating handle, a clamping ring and a second temperature sensing deformation component, one end of the rotating shaft is fixedly connected with the axis of the gear, and the other end of the rotating shaft penetrates through the support and is rotationally connectedwith the support. A round clamping groove is arranged in the rotating handle, one end of the clamping ring is fixedly connected with the support, the rotating handle can freely rotate around the circle center of the clamping ring and get close to or away from the support along the clamping ring, a key groove matched with the other end of the rotating shaft is formed in the center of the side face,opposite to the support, of the rotating handle, and one end of the second temperature sensing deformation component is fixedly connected with the support. The other end directly faces the side surface of the rotating handle opposite to the support. Accidents such as fire disasters or electric shock caused by forced closing of the change-over switch under the high-temperature condition can be avoided, and the high-temperature switching device has the advantages of being simple in overall structure, convenient to install and maintain the change-over switch and good in practicability.

Description

technical field [0001] The present invention relates to the technical field of transfer switches, in particular, to a transfer switch of low-voltage electrical equipment. Background technique [0002] A transfer switch is a switching electrical appliance that can be used for the conversion of two or more power sources or loads. The transfer switch is widely used in various places where uninterrupted power supply is required. It realizes the automatic conversion of the load line between the two power sources to ensure the reliability of the user's power supply. [0003] In the existing transfer switch, the temperature sensor is used to monitor the working temperature. When the working temperature is too high, the action of turning the handle is limited by the locking mechanism set inside the transfer switch, so as to avoid the transfer switch being forced to close under high temperature conditions. Accidents such as fire or electric shock. However, the temperature sensor an...

AI Technical Summary

Problems solved by technology

[0004] Based on this, in order to solve the problem that the existing transfer switch restricts the movement of the rotating handle through the temperature sensor and the locking mechanism, so as to avoid accidents such as fire or electric shock caused by the forced closing of the transfer switch under high temperature conditions, its structure is relatively complicated. , the invention provides a low-voltage electrical equipment changeover switch, and its specific technical scheme is as follows:

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