Temperature protector and a preparation method thereof

A technology of temperature protector and thermal fuse, applied in the direction of heating/cooling contact switch, etc., can solve the problems of poor sealing, slow heat conduction, failure of thermal fuse, etc., and achieve the effect of good sealing, high heat conduction speed and sensitive heat conduction process.

Active Publication Date: 2015-12-16
MINGGUANG XUSHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The temperature protector provided by the prior art, on the one hand, has poor sealing performance, which can easily cause the thermal fuse to fail; on the other hand, the heat conduction is slow, and the circuit cannot be cut off in time

Method used

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  • Temperature protector and a preparation method thereof

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preparation example Construction

[0046] On the other hand, an embodiment of the present invention provides a method for preparing the above-mentioned temperature protector, including: using a terminal to electrically connect the temperature fuse to an insulated wire, and then placing it inside the casing; then, filling the inside of the casing with polyurethane resin, so that The polyurethane resin fills the inside of the case, and then cured at 20-25°C for 7-10 hours to obtain the desired temperature protector.

[0047] Specifically, the method for preparing a temperature protector provided by an embodiment of the present invention may include the following steps: Step 101, use the first terminal to electrically connect one end of the thermal fuse to the first insulated wire, and use the second terminal to connect the other end of the thermal fuse to Electrically connected to a second insulated wire and then placed inside the housing.

[0048] Step 102: Accurately weigh the mass of the polyurethane resin mai...

Embodiment 1

[0057] This embodiment provides a temperature protector, including: a casing, a temperature fuse, terminals and insulated wires. Both ends of the thermal fuse are electrically connected to two insulated wires through two terminals, and placed inside the housing, wherein the thermal fuse, terminals and part of the insulated wires in the housing are not in contact with the inner wall of the housing, and are filled with polyurethane in the housing. The resin seals the thermal cutoff inside the housing.

[0058] Wherein, the mass ratio of the polyurethane resin main agent and the polyurethane resin curing agent in the polyurethane resin is 100:15. The material of the shell is flame retardant nylon.

[0059] The temperature protector prepared in Example 1 can be used for 5 years under normal use.

Embodiment 2

[0061] This embodiment provides a temperature protector, including: a casing, a temperature fuse, terminals and insulated wires. Both ends of the thermal fuse are electrically connected to two insulated wires through two terminals, and placed inside the housing, wherein the thermal fuse, terminals and part of the insulated wires in the housing are not in contact with the inner wall of the housing, and are filled with polyurethane in the housing. The resin seals the thermal cutoff inside the housing.

[0062] Wherein, the mass ratio of the polyurethane resin main agent and the polyurethane resin curing agent in the polyurethane resin is 100:16. The material of the shell is flame retardant nylon.

[0063] The temperature protector prepared in Example 2 can be used for 5.5 years under normal use.

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Abstract

The invention discloses a temperature protector and a preparation method thereof and belongs to the field of electrical equipment. The temperature protector comprises a housing, a temperature fuse, terminals, and an insulated wire. The temperature fuse is electrically connected with the insulated wire through the terminals. The housing is filled with polyurethane resin which seals the temperature fuse in the housing. The temperature protector is good in airtightness and capable of effectively preventing the failure of the temperature fuse caused by the influences of external corrosion and moisture, uses the polyurethane resin as a heat-conducting medium, achieves a sensitive thermal conduction process, and may timely disconnect a circuit in case of abnormal high temperature.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a temperature protector and a preparation method thereof. Background technique [0002] A temperature protector is a type of electronic component. Its function is to automatically cut off the circuit when the electronic equipment has abnormal high temperature due to abnormal operation, so as to avoid damage to the electronic equipment and the occurrence of fire. A temperature protector usually includes a housing, a thermal fuse, terminals and insulated wires. Among them, the thermal fuse is a core component, which is electrically connected through terminals and insulated wires and then placed in the housing. Since the thermal fuse is easily affected by the external environment to cause failure, it is usually completely sealed in the casing when used. [0003] For example, in the prior art, polyvinyl chloride pipes are usually used as the casing of the temperature protector, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H37/76
CPCH01H37/76
Inventor 苑广军苑广礼
Owner MINGGUANG XUSHENG TECH
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