A method for defrosting a refrigerator

A refrigerator, pressure difference technology, used in defrosting, refrigeration and liquefaction, household refrigeration devices, etc., can solve the problems of heat waste, aging damage, long heating time, etc., and achieve the effect of saving electricity

CN107192206BActive Publication Date: 2019-12-10HAIER SMART HOME CO LTD
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-12-10

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a defrosting method for a refrigerator. The defrosting method comprises the steps that whether an evaporator needs defrosting is judged; when the evaporator needs defrosting, all heating wires are started, thereby emitting heat for defrosting; defrosting temperature is detected; the pressure differences between multiple heights of the evaporator are detected through a plurality of pressure difference detection devices, and a plurality of first pressure difference values are obtained; and according to the defrosting temperature and / or each first pressure difference value, part of or all the heating wires are stopped. Through the defrosting method, heat emission quantity of the heating wires in different positions can be reduced appropriately, thus the evaporator of the refrigerator can achieve defrosting as needed, power consumption can be reduced, defrosting duration is shortened, and the preservation effect can also be enhanced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of refrigerated and frozen storage, in particular to a method for defrosting a refrigerator. Background technique

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature, and it is also a civilian product that keeps food or other items in a constant low temperature and cold state. Air-cooled technology uses a built-in hidden cooler (such as the evaporator of the refrigerant circulation system) to cool the air flowing through it, and the fan forces the cold air to circulate, so that the cold air is evenly distributed in each compartment of the refrigerator to achieve cooling. When the air in the refrigerator passes through the surface of the evaporator, the moisture in the air will condense on the surface of the evaporator. Because the temperature of the evaporator is too low, a frost layer will form after a period of time, resulting in a decrease in the heat transfer efficiency of t...

Examples

Embodiment Construction

[0044] figure 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention; figure 2 is a schematic partial structural diagram of a refrigerator according to an embodiment of the present invention; image 3 Yes figure 2 Schematic side view of the structure shown. like figure 1 , figure 2 and image 3 As shown, the embodiment of the present invention provides a refrigerator. The refrigerator may include a box body 10, a door body, a refrigeration system, a fan, a frost detection device, a defrost heating device and a temperature sensor.

[0045]There are multiple storage compartments inside the box body 10 . Storage compartments are used to store food. The plurality of storage compartments in the embodiment of the present invention may include a refrigerator compartment 11 for frequently storing vegetables, and its temperature control range is generally -5°C to 7°C. The plurality of storage compartments may also include a...