Evaporator defrost control method, control device and refrigerator
A control method and control device technology, which is applied in the direction of household refrigeration equipment, defrosting, refrigerators, etc., can solve the problems of judging the defrosting time of the evaporator, frosting of the evaporator, and the reduction of the efficiency of refrigeration equipment, etc., to achieve strong pertinence and accuracy, save energy, and improve cooling efficiency
Active Publication Date: 2018-08-28
HEFEI HUALING CO LTD +2
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Problems solved by technology
The defrosting time of the evaporator cannot be judged directly according to the frosting condition of the evaporator
[0003] In view of the above problems, relying on fuzzy control to turn on the defrosting heating element often causes the evaporator to not perform defrosting work when the evaporator is seriously frosted; or the evaporator is not seriously frosted, and the defrosting work is started
Defrosting the evaporator too early or too late not only reduces the efficiency of the cooling equipment, but also wastes energy
Method used
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[0044] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0045] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.
[0046] figure 1 A schematic block diagram of an evaporator assembly according to an embodiment of the invention is shown.
[0047] Such as figure 1 As shown, according to the embodiment of the first aspect...
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The invention provides an evaporator defrosting control method and device and a refrigerator. The evaporator defrosting control method comprises the steps that after evaporator operation is finished, first temperature collected by a temperature sensor is recorded, and timing is started; when the first temperature is increased to delta T, timing is finished, and a first timing result is recorded as t1, wherein delta T is a preset temperature difference value; when evaporator operation is finished again, second temperature collected by the temperature sensor is recorded, and timing is started again; when the second temperature is increased to delta T, timing is finished, and a second timing result is recorded as t2; when t2 is larger than t1 and the difference value delta t between t2 and t1 is larger than or equal to a preset time t, a heating part is started to carry out defrosting treatment on an evaporator. According to the technical scheme, the temperature changes of the evaporator are directly measured, then, the defrosting condition is judged, it is ensured that defrosting treatment is carried out when defrosting conditions are met, then, refrigeration efficiency is improved, and energy is saved.
Description
technical field [0001] The invention relates to the technical field of refrigeration, in particular to a method for controlling defrosting of an evaporator, a control device and a refrigerator. Background technique [0002] At present, the defrosting of the freezer evaporator of the refrigeration equipment on the market is based on the start-up time of the compressor and the number of times the door is opened, and the fuzzy control of the opening of the defrosting heating element is adopted. The defrosting time of the evaporator cannot be judged directly according to the frosting condition of the evaporator. [0003] In view of the above problems, relying on fuzzy control to turn on the defrosting heating element often results in that the evaporator does not carry out the defrosting work when the evaporator frosting is serious; or the evaporator frosting is not serious, and the defrosting work is started. Defrosting the evaporator too early or too late not only reduces the ...
Claims
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IPC IPC(8): F25B47/02F25B49/02F25D21/02
CPCF25B47/02F25B49/02F25D21/02
Inventor 张海斌杨伟严峰凡伟
Owner HEFEI HUALING CO LTD