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Alloy type thermal fuse with high ampere capacity

A technology of temperature fuse and ampacity, applied in the direction of heating/cooling contact switch, etc., can solve the problem of thermal protection of the power battery that cannot have a large capacity, and achieve the effect of high ampacity

Inactive Publication Date: 2010-10-13
XIAMEN SET ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to overcome the disadvantage that the existing thermal fuses cannot provide thermal protection for large-capacity power batteries, and provide an alloy type thermal fuse with high amperage capacity as thermal protection for power batteries, so that the charging and discharging of the batteries Simplification of protective technical measures

Method used

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  • Alloy type thermal fuse with high ampere capacity
  • Alloy type thermal fuse with high ampere capacity
  • Alloy type thermal fuse with high ampere capacity

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specific Embodiment approach 1

[0018] Specific embodiment 1, the present invention will be further described below in conjunction with accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3 and specific embodiment, wherein, stated is in order to illustrate the preferred specific embodiment purpose of the present invention, rather than for Limit the above purpose. Accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3 are respectively the front sectional view, the side sectional view and the three-dimensional anatomical view of the high ampacity alloy type thermal fuse of the preferred specific embodiment of the present invention. In the described embodiment, the high ampacity alloy type thermal cutoff includes a casing 15, and an assembly consisting of the following parts is assembled in the casing 15: There are two conductive and thermally conductive metal electrodes 11a and 11b, In this embodiment, the conductive and heat-conducting metal electrodes are in the shape o...

specific Embodiment approach 2

[0019] Specific embodiment 2, below in conjunction with accompanying drawing 4, accompanying drawing 5, another kind of specific implementation of accompanying drawing 6, the present invention will be further described, wherein, accompanying drawing 4, accompanying drawing 5 and accompanying drawing 6 are respectively this The front sectional view, side view sectional view and three-dimensional anatomical view of the high ampacity alloy type thermal fuse of the specific embodiment, in the described specific embodiment, the alloy type thermal fuse of the high amperage capacity comprises a shell 15, in An assembly composed of the following parts is assembled in the housing 15: there are two conductive and heat-conducting metal electrodes 11a and 11b. There are a plurality of through holes in the array, and the positions of the through holes on the two electrodes are completely consistent. There are many low-melting point alloy wires 13a, 13b passing through the through holes, and...

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Abstract

The invention relates to an alloy type thermal fuse with high ampere capacity, which can act as a protective action to devices, such as a power accumulator and the like, with the properties of large current. When the devices, such as a power battery and the like, are in an abnormal temperature rise state, the alloy type thermal fuse can be automatically switched off so as to prevent the occurrence of the accidents of explosion or fire and the like of the devices, such as the power accumulator and the like, because of overtemperature. Because the alloy type thermal fuse and the devices with the properties of the large current run in series, the alloy type thermal fuse must bear large current. In order to solve this problem, a plurality of alloy wires with low melting point (containing two alloy wires with low melting point) are welded between two metal electrodes with favorable weldability in parallel, and the periphery of each alloy wire with low melting point is also provided with a fusing assistant material, so that the condition that each alloy wire with low melting point is quickly and completely retracted to the electrodes can be promoted after each alloy wire with low melting point is heated and fused, thereby switching off the large current safely.

Description

technical field [0001] The invention relates to an alloy type temperature fuse with high amperage capacity, which can protect the overheating of devices with large current characteristics such as power batteries. When the power battery and other devices are in an abnormal temperature rise state, the alloy type temperature fuse It can be automatically disconnected to prevent accidents such as explosions or fires caused by overheating of power batteries and other devices. Background technique [0002] Since entering the 21st century, the global auto industry has faced dual pressures from energy and environmental issues. The development and use of new storage batteries provide a new vehicle energy for the development of the automobile industry. During the use of the battery, excessive discharge current or accidental events cause the battery to heat up or explode frequently. In the past, the overheating protection method of the power battery mainly used a current-limiting fuse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H37/76
Inventor 徐忠厚许由生
Owner XIAMEN SET ELECTRONICS
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