Sealing strip of cold storage door and refrigerator

Abstract

The invention relates to the technical field of refrigerating equipment, and in particular relates to a sealing strip of a cold storage door and a refrigerator. The sealing strip of the cold storage door comprises an air bag, a magnetic strip cavity, mounting pins, and a cold storage cavity which is arranged close to the air bag; a cold storage medium is arranged in the cold storage cavity. The invention further provides the refrigerator employing the sealing strip of the cold storage door. According to the sealing strip of the cold storage door, a heat storage cavity is formed in the sealing strip; the heat loss in the refrigerator can be compensated according to the state variation of heat storage material in the heat storage cavity and the energy transfer among the heat storage material, the inside of the refrigerator and the air bag; in addition, outside air can be effectively prevented from entering the refrigerator; therefore, the sealing effect of the refrigerator can be improved, and the energy loss of the refrigerator can be decreased.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a cold storage door seal and a refrigerator. Background technique [0002] The refrigerator door seal is an important sealing structure connecting the refrigerator box and the door body, and plays a vital role in the insulation and insulation of the refrigerator. The heat exchange between the refrigerator door body, box body, door seal and the external environment, that is, heat leakage, is an important factor for the energy loss of the refrigerator. [0003] Leakage of the door seal is a non-negligible part of the energy loss of the refrigerator. With the increasing energy-saving level of the refrigerator, how to effectively reduce the heat load of the refrigerator is an important means to improve the energy-saving level of the refrigerator. The insulation performance of the foam layer of the refrigerator is improving day by day. The heat leakage of the seal has...

AI Technical Summary

Problems solved by technology

[0005] The door seal material is soft PVC, which is obtained by adding more than 20% plasticizer to PVC. During the use of the door seal, this type of plasticizer can migrate and corrode the inner liner of the refrigerator, causing the door to be damaged. Adverse consequences such as adhesion between the seal and the liner and cracking of the liner

At the same time, the hardness of PVC material increases significantly in low-temperature environments, the low-temperature elasticity decreases rapidly, and the aging rate of door seals accelerates, which directly affects the sealing performance of door seals, resulting in a gradual increase in heat leakage and energy consumption of refrigerators.

[0006] The main function of the door seal airbag is to increase the heat transfer resistance of the door seal. The door seal contains multiple airbags, and the air inside the airbag has natural convection heat transfer, although the thermal conductivity of the air is much smaller than that of PVC materials and magnetic strips. However, under the long-term cold and heat shock of the PVC material, the inherent performance of the material declines. The simple airbag structure can only delay the gradual increase of the refrigerator's heat leakage, but cannot effectively compensate for the lost cooling capacity of the refrigerator.

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