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Small thermal link with double insulators

A thermal fuse, double insulation technology, applied in the direction of electrical components, circuits, emergency protection devices, etc., can solve the problem of thermal fuse over-temperature fuse protection function failure and other problems, to ensure the energization performance, improve reliability, improve insulation capacity Effect

Inactive Publication Date: 2020-01-03
天宇匹克电子(惠州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a small thermal fuse with double insulators to solve the problem that the existing star reed and the metal pins in contact with it will be directly welded together and the thermal fuse is overheated. Fuse protection function failure problem

Method used

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Embodiment Construction

[0021] 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.

[0022] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orie...

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Abstract

The invention discloses a small thermal link with double insulators, and relates to the technical field of thermal links. The small thermal link comprises a fixed shell. A first insulator is fixedly connected to the middle of the fixed shell. Second insulators are fixedly connected to the interiors of the two ends of the bottom of the fixed shell. A pin is fixedly connected in each second insulator. A mounting groove is formed in the middle of the first insulator. An organic matter temperature sensing body is arranged in the middle of the mounting groove. A first spring is fixedly connected tothe middle of the organic matter temperature sensing body. Electric conductors are connected to the two ends of the outer side of the organic matter temperature sensing body in an attached mode. Second springs are rigidly connected to the outer sides of the electric conductors, and the ends, away from the electric conductors, of the second springs are fixedly connected with the first insulator. By arranging the organic matter temperature sensing body and the first spring, when the organic matter temperature sensing body melts, the two electric conductors can be stably separated. The small thermal link has efficient arc isolating and current breaking performances, and the safety performance is greatly improved.

Description

technical field [0001] The invention relates to the technical field of thermal fuses, in particular to a small thermal fuse with double insulators. Background technique [0002] Thermal fuse, also called thermal fuse, is a one-time over-temperature protection device. It is usually installed on the heating device of electrical appliances and electronics. It can sense the over-temperature generated during abnormal operation of the product, thereby cutting off the circuit to avoid fire; with insulator The organic thermal fuses are widely used in electric heating appliances such as electric rice cookers, electric irons, hair dryers and other products. When the internal current of the product is overloaded, the circuit is abnormal, and the ambient temperature rises to a specific temperature, the thermal fuse realizes overheating through its own structure. Fusing, which automatically interrupts the current flow, prevents overheating, damage or fire. [0003] When the existing org...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/041H01H85/05H01H85/143
CPCH01H85/0411H01H85/05H01H85/143
Inventor 何济
Owner 天宇匹克电子(惠州)有限公司
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