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Device and method for testing temperature fuse assembly

A technology of temperature fuses and test devices, which is applied in the direction of circuit breaker testing, etc., and can solve problems such as fuses, fire refrigerator accidents, etc.

Inactive Publication Date: 2010-03-03
HISENSE HOME APPLIANCES GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no reliability test content for the acceptance conditions of thermal fuse components. During on-site refrigerator repairs, it was found that thermostat failures caused thermal fuse components to blow, and what’s more, replacing thermal fuse components with copper wires caused fire refrigerator accidents.

Method used

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  • Device and method for testing temperature fuse assembly
  • Device and method for testing temperature fuse assembly
  • Device and method for testing temperature fuse assembly

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Embodiment Construction

[0028] see figure 2 , The thermal fuse assembly life test device of the present invention. The life test device of the thermal fuse assembly of the present invention carries out the load test according to the test conditions. The test conditions are: put the fuse assembly in water at 45°C, pass a current of 2A for 1 minute, turn off the power for 2 minutes, and cycle 20,000 times. The test conditions are determined by the following methods:

[0029] First determine the test temperature: in practical applications, the temperature fuse assembly is installed on the evaporator of the freezer, the working environment is -35°C to 10°C, and there is often water soaking during defrosting.

[0030] According to the experiment, it is known that the core alloy of the temperature fuse component has super-standard temperature (72 ℃) fusing, super-standard current (10A) fusing, lower than the standard temperature and standard current, long-term under the condition of higher than the work...

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Abstract

The invention provides a device and a method for testing a temperature fusion assembly of a refrigerator. The testing device comprises a testing container, a temperature-control device, a temperaturefuse assembly and a test controller, wherein liquid is filled in the testing container, the temperature-control device regulates and controls the temperature of the liquid in the testing container, the temperature fuse assembly is arranged in the testing container, the test controller is connected with the temperature-control device and the temperature fuse assembly and is provided with a defrosting load, the temperature-control device and the test controller control the liquid in the testing container at a constant-temperature state, and the test controller carries out switching-on and switching-off circulation control on the temperature fuse assembly. The invention restricts the temperature of the temperature fuse assembly by the methods of immersing the temperature fuse assembly into the liquid and controlling the temperature of a liquid medium and utilizes the test controller to carry out the switching-on and switching-off circulation control on the temperature fuse assembly, thussimulating the conditions of the temperature, the current, the switching-on time and the operation frequency of the temperature fuse assembly when in use and verifying the service life of the temperature fuse assembly by an accelerated life testing method.

Description

technical field [0001] The invention relates to the technical field of refrigerators in household appliances, in particular to a test device and a test method for a temperature fusing component. Background technique [0002] The temperature fuse assembly is the last protection function device when the refrigerator defrosts over temperature. The temperature fuse assembly is installed on the evaporator with the defrosting heating pipe together with the thermostat. The temperature fuse assembly is based on its own over-temperature fuse and The over-current fusing function provides a safety guarantee for refrigerators with automatic frost function. [0003] At present, there is no reliability test content for the acceptance conditions of thermal fuse components. During on-site refrigerator repairs, it was found that thermostat failures caused thermal fuse components to blow, and what’s more, replacing thermal fuse components with copper wires caused fire refrigerator accidents. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
Inventor 鲍德君
Owner HISENSE HOME APPLIANCES GRP CO LTD
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