CN-117287890-B - Refrigerator and compressor control method thereof

CN117287890BCN 117287890 BCN117287890 BCN 117287890BCN-117287890-B

Abstract

The invention provides a refrigerator and a compressor control method thereof, wherein the compressor control method comprises the steps of obtaining operation parameters of a compressor; judging whether the compressor is in a low-speed high-load mode according to the operation parameters of the compressor, acquiring a set rotating speed of the compressor if the compressor is in the low-speed high-load mode, judging whether the set rotating speed is larger than a first rotating speed, and controlling the compressor to operate according to the set rotating speed if the set rotating speed is larger than the first rotating speed. The invention has the advantages that the working noise of the compressor is reduced, the running loss of the compressor is reduced and the service life of the compressor is prolonged by reasonably adjusting the actual rotation speed of the compressor.

Inventors

SU XIANGFEI
LI TAO
HOU JIANGUO

Assignees

重庆海尔制冷电器有限公司
青岛海尔电冰箱有限公司
海尔智家股份有限公司

Dates

Publication Date: 20260512
Application Date: 20220617

Claims (10)

1. A compressor control method of a refrigerator, comprising: Acquiring operation parameters of the compressor; Judging whether the compressor is in a low-speed high-load mode according to the operation parameters of the compressor; If the compressor is in the low-speed high-load mode, acquiring a set rotating speed of the compressor; Judging whether the set rotating speed is larger than a first rotating speed or not; and if the judgment result is yes, controlling the compressor to run according to the set rotating speed.
2. The compressor control method of claim 1, wherein the operation parameters include an actual rotation speed and an actual power of the compressor, and the step of judging whether the compressor is in the low-speed high-load mode according to the operation parameters of the compressor includes: judging whether the actual rotating speed of the compressor is smaller than a first rotating speed or not, and whether the actual power of the compressor is larger than a first power or not; and if the judgment result is yes, determining that the compressor is in the low-speed high-load mode.
3. The compressor control method according to claim 2, wherein, The first rotating speed is 1400-1600 r/min; The first power is 50W-60W.
4. The compressor control method of claim 2, wherein after the step of determining whether the set rotation speed is greater than the first rotation speed, further comprising: If the set rotating speed is smaller than or equal to the first rotating speed, judging whether the actual power of the compressor is smaller than a second power, wherein the second power is smaller than the first power; if the judgment result is yes, controlling the compressor to run according to the set rotating speed; And if the judgment result is negative, controlling the compressor to run according to the first rotating speed.
5. The compressor control method of claim 4, wherein, The difference between the first power and the second power is more than or equal to 5W.
6. The compressor control method of claim 2, wherein after the step of judging whether the compressor is in the low-speed high-load mode according to the operation parameter of the compressor, further comprising: if the compressor is not in the low-speed high-load mode, judging whether the actual rotating speed and the set rotating speed of the compressor are smaller than a second rotating speed, wherein the second rotating speed is smaller than the first rotating speed; If the judgment result is yes, acquiring the actual power of the compressor; judging whether the actual power of the compressor is larger than the first power; And if the judgment result is yes, controlling the compressor to run according to the first rotating speed.
7. The compressor control method of claim 6, wherein, The difference value between the first rotating speed and the second rotating speed is more than or equal to 50r/min.
8. The compressor control method of claim 6, wherein after the step of determining whether the actual power of the compressor is greater than the first power, further comprising: and if the actual power of the compressor is smaller than or equal to the first power, controlling the compressor to run according to the set rotating speed.
9. The compressor control method of claim 6, wherein after the step of judging whether both the actual rotation speed and the set rotation speed of the compressor are smaller than the second rotation speed, further comprising: And if the set rotating speed and/or the actual rotating speed of the compressor are/is larger than the second rotating speed, controlling the compressor to operate according to the set rotating speed.
10. A refrigerator, comprising: compressor, and A controller comprising a memory and a processor, wherein the memory stores a machine executable program that when executed by the processor is configured to implement the compressor control method of any one of claims 1-9.

Description

Refrigerator and compressor control method thereof Technical Field The invention relates to the field of refrigeration and freezing equipment, in particular to a refrigerator and a control method of a compressor of the refrigerator. Background The compressor is used as a core part of the refrigerator, and the reliability of safe operation of the compressor directly influences the service performance of the whole refrigerator. Therefore, in order to ensure that the compressor can stably and safely operate, the operation state of the compressor needs to be monitored and protected in real time. When more food is stored in the storage room of the existing refrigerator, the load of the compressor is larger, and at the moment, if the set rotating speed given by the main control board is lower, the compressor can be in a low-speed high-load mode for a long time, in the mode, the working noise of the compressor is larger, the loss of the compressor is serious, and the service life of the compressor is greatly shortened, so that the compressor is still to be improved. Disclosure of Invention An object of the first aspect of the present invention is to provide a compressor control method of a refrigerator, which can reduce the operation noise of a compressor, reduce the operation loss of the compressor, and extend the service life of the compressor. A further object of the first aspect of the invention is to provide for a speed up protection of the compressor when it starts to enter a low speed high load mode. An object of a second aspect of the present invention is to provide a refrigerator. In particular, according to a first aspect of the present invention, there is provided a compressor control method of a refrigerator, comprising: Acquiring operation parameters of a compressor; judging whether the compressor is in a low-speed high-load mode according to the operation parameters of the compressor; If the compressor is in a low-speed high-load mode, acquiring a set rotating speed of the compressor; Judging whether the set rotating speed is larger than the first rotating speed or not; And if the judgment result is yes, controlling the compressor to operate according to the set rotating speed. Optionally, the operation parameters include an actual rotation speed and an actual power of the compressor, and the step of determining whether the compressor is in the low-speed high-load mode according to the operation parameters of the compressor includes: Judging whether the actual rotating speed of the compressor is smaller than the first rotating speed or not, and judging whether the actual power of the compressor is larger than the first power or not; If the judgment result is yes, the compressor is determined to be in a low-speed high-load mode. Optionally, the first rotating speed is 1400-1600 r/min; the first power is 50W-60W. Optionally, after the step of determining whether the set rotational speed is greater than the first rotational speed, the method further includes: If the set rotating speed is smaller than or equal to the first rotating speed, judging whether the actual power of the compressor is smaller than the second power, wherein the second power is smaller than the first power; If the judgment result is yes, controlling the compressor to operate according to the set rotating speed; If the judgment result is negative, the compressor is controlled to operate according to the first rotating speed. Optionally, the difference between the first power and the second power is greater than or equal to 5W. Optionally, after the step of determining whether the compressor is in the low-speed high-load mode according to the operation parameter of the compressor, the method further comprises: If the compressor is not in the low-speed high-load mode, judging whether the actual rotating speed and the set rotating speed of the compressor are smaller than the second rotating speed, wherein the second rotating speed is smaller than the first rotating speed; If the judgment result is yes, acquiring the actual power of the compressor; Judging whether the actual power of the compressor is larger than the first power; and if the judgment result is yes, controlling the compressor to operate according to the first rotating speed. Optionally, the difference between the first rotation speed and the second rotation speed is greater than or equal to 50r/min. Optionally, after the step of determining whether the actual power of the compressor is greater than the first power, the method further includes: And if the actual power of the compressor is smaller than or equal to the first power, controlling the compressor to operate according to the set rotating speed. Optionally, after the step of determining whether the actual rotation speed and the set rotation speed of the compressor are both less than the second rotation speed, the method further includes: And if the set rotating speed and/or the actual rotating speed of the compresso