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Thermal granular thermal fuse

A thermal fuse, particle type technology, applied in the field of heat sensitive particle type thermal fuse, to achieve the effect of high operational reliability

Active Publication Date: 2019-06-28
TOYO ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] An object of the present invention is to provide a heat-sensitive pellet type thermal fuse having high operational reliability by stably contacting or separating contacts so as to operate accurately without erroneous operation in a predetermined temperature range , to address the disadvantages of conventional thermal fuses as described above

Method used

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Examples

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Embodiment Construction

[0044] Hereinafter, preferred embodiments of the thermosensitive pellet type thermal fuse according to the present invention will be described in detail with reference to the accompanying drawings.

[0045] Such as figure 1 with figure 2 As shown, one side of the heat-sensitive pellet type thermal fuse according to the present invention is opened, and the other side includes a metal case 11 having a bottom 11c. The housing 11 is composed of an upper area with a relatively larger inner diameter and a lower area with a relatively smaller inner diameter, and a stepped portion is formed at a boundary between the upper area and the lower area.

[0046] In the lower area of ​​the housing 11, a heat-sensitive particle 12, a backing plate 13, a first spring 17, a movable terminal 16, an operating part 15, and a second spring 18 are sequentially inserted from the bottom 11c of the housing 11. , and in the upper region of the housing 11, a fixed terminal board 19 and an insulating sl...

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Abstract

A temperature-sensitive pellet type thermal fuse having a cylindrical metal case (11), a first lead (1) fixedly installed and insulated from the case (11) and a second lead (2) electrically connected to the case (11). A temperature-sensitive pellet (12) is installed by melting inside the case (11) and has a variable height. A moving terminal (16) is elastically coupled by a first spring (17) to the temperature-sensitive pellet (12) and an activating member (15) moves in a height decrease direction of the temperature-sensitive pellet (12) by an elastic repulsive force of a second spring (18). When the temperature-sensitive pellet (12) is melted and thereby is reduced in height, a first moving contact (16b) of the moving terminal (16) is separated from a first contact (1a) of the first lead (1).

Description

technical field [0001] The present invention relates to a heat-sensitive particle type thermal fuse, and more particularly to such a heat-sensitive particle-type thermal fuse, that is, when the ambient temperature and the temperature of the circuit rise above a predetermined standard, the heat-sensitive particles in the case are melted so that The movable terminal and the lead wire supported by the spring are separated or connected, so as to turn on / off the heat-sensitive pellet type thermal fuse of the circuit. Background technique [0002] Thermal fuses are components that detect abnormal overheating of equipment and quickly cut off circuits. They are used in electrical components such as automobiles, various household appliances, mobile electronic communication equipment, office equipment, automotive electrical components, AC adapters, chargers, motors, Batteries and other fields. [0003] The above-mentioned thermal fuse generally uses, as a heat-sensitive material, a g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H37/76
CPCH01H37/765H01H37/76H01H37/764H01H85/04H01H85/165H01H85/06H01H85/10H01H85/17H01H2037/762
Inventor 尹诚雄金旻坤
Owner TOYO ELECTRIC CO LTD
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