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Refrigerator sealing performance detection method and device

A detection method and detection device technology, applied in the direction of fluid tightness test, measuring device, liquid tightness measurement using liquid/vacuum degree, etc., can solve the problem of failure to reach the set temperature, increase power consumption, and affect food preservation And other issues

Inactive Publication Date: 2019-05-21
HAIER SMART HOME CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sealing of the refrigerator plays an important role in the insulation effect and energy saving of the refrigerator. If the sealing is not good, it will take a long time for the temperature in the refrigerator to drop to the set value or fail to reach the set temperature, which will affect food preservation and increase power consumption.

Method used

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  • Refrigerator sealing performance detection method and device
  • Refrigerator sealing performance detection method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] An embodiment of the present invention provides a detection device for the airtightness of a refrigerator. The refrigerator includes a drainpipe communicating with the storage compartment. The drainpipe is inserted into the water storage tray. The detection device includes a The opening and closing detection device, and the air pressure detection device and temperature detection device arranged in the storage compartment, as well as the memory and processor for recording and processing the air pressure and temperature.

[0041] Specifically, when the refrigerator defrosts, the defrosted water flows into the water storage tray, and when the accumulated operation of the refrigerator compressor reaches the preset time, and the defrosting reaches the preset defrosting time or the preset defrosting stop temperature, the refrigerator stops When defrosting, the water level in the water storage tray is higher than the water outlet of the drain pipe.

[0042] The opening and clo...

Embodiment 2

[0069] ginseng figure 2 In another embodiment provided, the difference between this embodiment and Embodiment 1 lies in that the procedure for judging the ice blockage of the drain pipe is different.

[0070] Specifically, the temperature detection device detects the temperatures T2 and T3 at different times, the air pressure detection device detects the corresponding air pressure values ​​P2 and P3 at different times, and the processor calculates the temperature difference T3- T2=ΔT2, and the air pressure difference P3-P2=ΔP2 corresponding to changes in air pressure values ​​at different times;

[0071] The processor compares the relationship between the temperature difference and the air pressure difference at the corresponding time ΔΔT2 / ΔP2=k, and when the ratio k of the temperature difference to the air pressure difference is greater than or equal to a preset ratio, it is determined that the refrigerator is leaking. gas.

[0072] When the refrigerator is in use, the int...

Embodiment 3

[0077] ginseng image 3 In another embodiment provided, the difference between this embodiment and Embodiment 1 lies in that the procedure for judging the ice blockage of the drain pipe is different.

[0078] Specifically, detecting the real-time temperature T4 and the corresponding real-time air pressure value P4 in the storage compartment;

[0079] When the real-time temperature reaches the lowest value, and the real-time pressure value P4 corresponding to the real-time temperature is greater than or equal to the preset maximum pressure value Pmax, it is determined that the refrigerator is leaking.

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Abstract

The invention discloses a refrigerator sealing performance detection method and device. A refrigerator comprises a drain pipe communicating with a storage chamber, and the drain pipe is inserted intoa water storage disc. The detection method comprises the following steps: the water level in the water storage disc is higher than a water outlet of the drain pipe; a refrigerator door is closed; thetemperature and the air pressure value in the storage chamber are recorded; and the sealing performance of the refrigerator is determined according to the change relation between the temperature and the air pressure value. Under the conditions that the refrigerator door is closed in advance and it is determined that the water outlet of the drain pipe is sealed, the sealing performance of the refrigerator is judged by detecting the relation between the air pressure and the temperature in the refrigerator, and if the relation between the air pressure and the temperature does not accord with a preset value, then it is judged that the sealing performance is poor.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a method and device for detecting the airtightness of a refrigerator. Background technique [0002] The sealing of the refrigerator plays an important role in the insulation effect and energy saving of the refrigerator. If the sealing is not good, it will take a long time for the temperature in the refrigerator to drop to the set value or fail to reach the set temperature, which will affect food preservation and increase power consumption. [0003] There are many factors that affect the airtightness of the refrigerator, including the door seal of the refrigerator, the drain pipe of the refrigerator, and some other causes of air leakage. To improve the cooling effect of the refrigerator, the door seal usually absorbs the refrigerator door and the refrigerator body through magnetic force, and the drain pipe is inserted into the water storage tray, so that the water level in t...

Claims

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Application Information

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IPC IPC(8): G01M3/32G01M3/00F25D21/00F25D21/14F25D29/00
Inventor 何胜涛牟森苗建林李春阳
Owner HAIER SMART HOME CO LTD
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