Electric appliance overload and overheating protector of outdoor small transformer

A technology of transformers and protectors, applied in the field of transformers, can solve problems such as contact adhesion and deformation

Inactive Publication Date: 2021-01-01
怀化联蔚科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides an electrical overload overheat protector for small outdoor transformers, which has the advantages of automatic power-off and intermittent automatic circuit connection, and solves the problems of contact adhesion and deformation

Method used

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  • Electric appliance overload and overheating protector of outdoor small transformer
  • Electric appliance overload and overheating protector of outdoor small transformer
  • Electric appliance overload and overheating protector of outdoor small transformer

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see Figure 1-3 , an electrical overload overheat protector for small outdoor transformers, comprising an insulating case 1, the inner wall of the insulating case 1 is fixedly connected with a fixed seat 12, the inner top wall of the fixed seat 12 is fixedly connected with a varistor 2, and the top of the fixed seat 12 is clamped The electromagnet 13 is connected, the top of the fixing seat 12 is clamped with the static contact 3 near the right side of ...

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Abstract

The invention relates to the technical field of protection devices, and discloses an electric appliance overload and overheating protector of an outdoor small transformer. The protector comprises an insulating shell, a fixed seat is fixedly connected to the inner wall of the insulating shell, a piezoresistor is fixedly connected to the inner top wall of the fixed seat, and an electromagnet I is clamped at the top of the fixed seat; a static contact is clamped at the top of the fixed seat and close to the right side of the electromagnet I. A limiting cylinder is fixedly connected to the inner bottom wall of the insulating shell, a reset spring is fixedly connected to the inner bottom wall of the limiting cylinder, a movable shaft is fixedly connected to the top of the limiting cylinder, anda pawl is movably connected to the outer side of the movable shaft. According to the electric appliance overload and overheating protector of the outdoor small transformer, the static contact drivesthe semiconductor chilling plate to operate, the semiconductor chilling plate drives the piezoresistor to operate, and then the electromagnet I, the armature and the movable rod are used in cooperation, so that the temperature control outage effect is achieved.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to an electrical overload and overheat protector for small outdoor transformers. Background technique [0002] The traditional overcurrent and overheating protector is composed of two different metal sheets. The metal sheet will heat up after being energized. Because the thermal expansion coefficients of the two different metals are different, the metal sheet will bend in one direction, so that the electric shock will be separated to realize the disconnection. Electricity, the two internal contacts of the existing overcurrent and overheating protector, when the overcurrent of the overcurrent and overheating protector occurs more often, the two internal contacts may have local adhesion, which affects the overcurrent and overheating Use of protectors. [0003] When the circuit needs to be restarted after power failure, it is usually necessary to press the switch of the protector...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H71/14
CPCH01H71/10H01H71/14
Inventor 邓必林罗中真严海波
Owner 怀化联蔚科技有限公司
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