Defrosting control method and device
A control method and controller technology, which are used in household refrigeration devices, cooling fluid circulation devices, defrosting and other directions, can solve the problems of inability to defrost and frost in time
Active Publication Date: 2019-11-29
CHANGHONG MEILING CO LTD
View PDF8 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The object of the present invention is to provide a defrosting control method and device, which can more accurately predict the heat transfer of the evaporator by detecting the temperature of the evaporator when the refrigeration system is working and the temperature at the return air outlet of the controlled room as the judgment basis. The ability to defrost and the degree of frosting can effectively defrost in a timely manner, which solves the problem that the existing conventional defrosting methods cannot defrost in time when the frosting is serious
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0050] see figure 1 Shown, the present invention is a kind of defrost control method, comprises the steps:
[0051] Step 1: When the refrigeration system is working, detect the temperature of the evaporator of the refrigerator and the temperature of the return air outlet of the controlled room at every interval Δt, and record them as T1i and T2i respectively;
[0052] The temperature at the outlet end of the refrigerator evaporator is the air temperature at the ev...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a defrosting control method and device, and relates to the technical field of refrigerator defrosting. The defrosting control method comprises the following steps of when a refrigeration system works, namely, when a compressor is opened, detecting the temperature of a refrigerator evaporator and the temperature of the air return opening of the controlled chamber at each interval time delta t, and correspondingly recording the temperature of the refrigerator evaporator and the temperature of an air return opening of the controlled chamber as T1i and T2i; calculating delta T1i=T1(i+1)-T1i and delta T2i=T2(i+1)-T2i which are accumulated according to the weight to obtain a defrosting judgment condition value k equal to the cumulative sum of k1*delta T1i+k2*delta T2i; and correspondingly comparing the magnitudes of k and k1 and k2 so as to judge whether defrosting judgment conditions are reached or not. The method for judging the temperature of the outlet end of theevaporator and the temperature of the air return opening of the controlled chamber as a judgment basis in the working process of the refrigeration system, has the advantages of more accurately predicting the heat exchange capacity and frosting degree of the evaporator and effectively defrosting the evaporator in time, and solves the problem that defrosting cannot be timely carried out when the existing conventional defrosting method is serious in frosting.
Description
technical field [0001] The invention belongs to the technical field of defrosting of refrigerators, and in particular relates to a defrosting control method and device. Background technique [0002] Frost on the evaporator will seriously affect the heat exchange capacity of the evaporator. Conventional defrosting control is generally to control the defrosting of the heater according to a specific time, for example, according to the accumulated running time of the compressor or the door opening time reaching the preset value, start Heater defrost. This kind of defrosting control does not defrost according to the actual frosting situation. According to the different usage environments of the refrigerator, when the accumulative running time of the compressor or the door opening time is the same, the degree of frosting on the evaporator will be different. Do not start defrosting when defrosting should not be used to waste electricity. [0003] The defrosting control method an...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F25D21/06F25D29/00
CPCF25D21/06F25D29/00F25D2600/06F25D2700/10
Inventor 左秋杰束仁志
Owner CHANGHONG MEILING CO LTD