Three-terminal thermostat detection method and tooling for mechanical refrigerator

Abstract

The invention provides a three-terminal temperature controller detection method and tool of a mechanical refrigerator, wherein the three-terminal temperature controller detection method of the mechanical refrigerator includes the steps of: connecting a three-terminal temperature controller to a temperature controller interface; determining the mechanical refrigerator to be a power off state; setting the three-terminal temperature controller as a preset detection state, and maintaining the closed state of a door body of a storage room of the mechanical refrigerator; connecting the temperature controller detection tool between a first terminal and a third terminal or between a second terminal and a third terminal, wherein the temperature controller detection tool includes an indicating device; and judging whether an indicating state output by the indicating device accords with the indicating state corresponding to a detection state so as to determine whether wirings of the three-terminal temperature controller are correct. The scheme of the invention can avoid serious whole machine faults caused by inversed insertion of the terminals of the three-terminal temperature controller, and solves the problem that the whole machine faults are difficult to detect after the two terminals are inserted inversely.

Description

technical field [0001] The invention relates to the field of home appliance testing, in particular to a testing method and tooling for a three-terminal thermostat of a mechanical refrigerator. Background technique [0002] With the development of society and the improvement of people's living standards, the demand for refrigerators is getting higher and higher. For refrigerators, temperature control is a very important performance. According to different temperature control methods, refrigerators can be divided into mechanical refrigerators and smart refrigerators. [0003] Compared with smart refrigerators, mechanical refrigerators have lower development costs, are cheaper, have stable performance, are not prone to failure, and are easy to maintain, so they are more popular. At present, the temperature controller terminals of mechanical refrigerators adopt two industry standard parts with a width of 4.8 and a width of 6.3. In addition to grounding, the thermostat termina...

AI Technical Summary

Problems solved by technology

In addition to grounding, the thermostat terminal can have two terminals. Although the two-terminal thermostat will not have the problem of misplugging the terminals, it will affect the shutdown function of the refrigerator and make the user experience poor. Therefore, three terminals are generally used. Terminal thermostat

The three-terminal thermostat has 3 terminals except grounding, which are respectively connected to the live wire, compressor, and compensation heating wire. Reversely, it will lead to serious failure of the whole machine, and once the two terminals are inserted reversely, the whole machine is difficult to detect, and the requirements for inspectors are relatively high, and excessive reliance on inspectors will increase the labor burden

In addition, only by disassembling the thermostat for observation can it be confirmed whether the thermostat terminals are connected correctly, which will seriously reduce the efficiency of the production line and increase the maintenance cost

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