Automatically controlled combined power supply switch

Abstract

The invention relates to an automatically controlled combined power supply switch which is mainly formed by combining a transparent mirror surface, a light transmission upper cover, a bottom frame, a photo resistor, a heating resistor, a thermal bimetallic strip, a static conductive sheet, an elastic movable conductive sheet and a movable conductive fixed wiring end sheet, wherein the photo resistor is arranged behind the transparent mirror surface in the light transmission upper cover, two conductive lead pins extend from the photo resistor, wherein one conductive lead pin is connected with one end of the heating resistor, the other conductive lead pin is connected with the wiring end, the heating resistor is fixed at one side of the thermal bimetallic strip through a fixed clamp, the heating resistor and the thermal bimetallic strip are mutually conducted, one side of the thermal bimetallic strip is provided with a regulation screw, one side edge of the other end is directly rivetedwith the movable conductive fixed wiring end sheet through rivets for forming the integral conduction contact, a position at one end side of the movable conductive fixed wiring end sheet is fixed to the movable conductive sheet, and one end of the movable conductive sheet is provided with a movable contact matched with the static contact. The automatically controlled combined power supply switch has the characteristics of simple and reasonable structure, low manufacture cost, high precision and the like, is convenient to assemble, and can save the materials.

Description

technical field [0001] The invention relates to an automatic control combined power switch device for switching on and off a circuit, in particular to a combined power switch device utilizing light control, and belongs to the technical field of lighting electrical switches. Background technique [0002] The existing known light-controlled power switch mainly includes a base, a photoresistor, and a thermal control switch device. It consists of a static conductive sheet with a static contact, and uses light to make the photosensitive resistor produce different resistance values, so that the current flows through the thick film heating resistor to generate heat, and then transfers the heat to the hot metal sheet to deform it, thereby driving The moving contact on the connected moving conductive sheet is in contact with or disconnected from the adjacent fixed contact to achieve the purpose of switching current. However, the structural layout of the light control switch with the...

AI Technical Summary

Problems solved by technology

However, the structural layout of the light control switch with the above structure is not reasonable enough, and the connection combination of various components is not reasonable enough, which is easy to be restricted, resulting in poor thermal deformation of the hot metal sheet, and cannot achieve accurate contact engagement or disconnection. During the process, the structure of each component is easily restricted and inactive, which affects the use effect and service life of the entire switch

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