CN-121993990-A - Control method and control device of single-system refrigerator and single-system refrigerator

CN121993990ACN 121993990 ACN121993990 ACN 121993990ACN-121993990-A

Abstract

The invention relates to the technical field of refrigeration, and provides a control method and a control device for a single-system refrigerator and the single-system refrigerator. The control method of the single-system refrigerator comprises the steps of obtaining a first temperature difference of a refrigerating chamber and a second temperature difference of a freezing chamber, wherein the first temperature difference is a difference value between the current temperature of the refrigerating chamber and a target temperature, the second temperature difference is a difference value between the current temperature of the freezing chamber and the target temperature, calling a pre-stored regulation mode of the single-system refrigerator based on the first temperature difference and the second temperature difference, wherein a mapping relation exists between the first temperature difference and the second temperature difference and a plurality of different regulation modes, and regulating at least one of a refrigerating fan, a freezing fan, a compressor and heating wires in the refrigerating chamber based on the regulation mode. According to the control method, the compartments with larger temperature difference are refrigerated preferentially, so that the refrigerating chamber and the freezing chamber can reach the target temperature rapidly, and the operation requirement of the single-system refrigerator is met.

Inventors

CUI HUAILEI
LI YU
ZHU TAO
HU MINGSONG

Assignees

湖北美的电冰箱有限公司

Dates

Publication Date: 20260508
Application Date: 20260313

Claims (12)

1. A control method of a single system refrigerator, comprising: Acquiring a first temperature difference of a refrigerating chamber and a second temperature difference of a freezing chamber, wherein the first temperature difference is a difference value between the current temperature of the refrigerating chamber and a target temperature, and the second temperature difference is a difference value between the current temperature of the freezing chamber and the target temperature; Calling a pre-stored regulation mode of the single-system refrigeration refrigerator based on the first temperature difference and the second temperature difference, wherein a mapping relation exists between the first temperature difference and the second temperature difference and a plurality of different regulation modes; And adjusting at least one of a refrigerating fan, a freezing fan, a compressor and a heating wire in the refrigerating chamber based on the adjustment mode.
2. The control method of a single-system refrigerator according to claim 1, wherein the adjustment mode is obtained based on the steps of: Presetting a plurality of first temperature difference intervals and a plurality of second temperature difference intervals according to the sequence of the temperature differences from large to small; The adjustment modes of the refrigerating fan, the freezing fan, the compressor and the heating wire in each first temperature difference interval and the corresponding second temperature difference interval are preset.
3. The control method of a single system refrigerator according to claim 1, wherein the adjusting at least one of a refrigerating fan, a freezing fan, a compressor, and a heating wire in a refrigerating compartment based on the adjustment mode comprises: adjusting the gear of at least one of the refrigerating fan, the freezing fan and the compressor, And/or the number of the groups of groups, Adjusting the start-up rate of at least one of the refrigeration fan and the freezing fan, And/or the number of the groups of groups, And controlling the start and stop of the heating wire.
4. The control method of a single system refrigerator according to claim 1, wherein the adjusting at least one of a refrigerating fan, a freezing fan, a compressor, and a heating wire in a refrigerating compartment based on the adjustment mode comprises: When the first temperature difference is larger than the second temperature difference, the rotating speed of the refrigerating fan is increased, and the rotating speed of the freezing fan is reduced; And when the first temperature difference is smaller than the second temperature difference, the rotating speed of the refrigerating fan is reduced, and the rotating speed of the freezing fan is increased.
5. The control method of a single system refrigerator according to claim 1, wherein the adjusting at least one of a refrigerating fan, a freezing fan, a compressor, and a heating wire in a refrigerating compartment based on the adjustment mode comprises: Increasing the rotational speed of the compressor when both the first temperature difference and the second temperature difference are positive values; And when the first temperature difference and the second temperature difference are negative values, reducing the rotating speed of the compressor.
6. The control method of a single system refrigerator according to claim 1, wherein adjusting at least one of a refrigerating fan, a freezing fan, a compressor, and a heating wire in a refrigerating compartment based on the adjustment mode, comprises: and when the first temperature difference is a negative value and the second temperature difference is a positive value, starting the heating wire.
7. The method according to claim 2, wherein in the step of adjusting at least one of the refrigerating fan, the freezing fan, the compressor, and the heating wire in the refrigerating compartment based on the adjustment mode, the adjustment is performed in order of priority of the refrigerating fan more than or equal to priority of the freezing fan more than or equal to priority of the compressor more than or equal to priority of the heating wire.
8. The method of controlling a single system refrigerator according to claim 7, wherein the step of adjusting at least one of a refrigerating fan, a freezing fan, a compressor, and a heating wire in the refrigerating compartment based on the adjustment mode comprises: Dividing the conditioning process into a plurality of refrigeration cycles; Adjusting the gear of the refrigeration fan in each refrigeration cycle of the first set number initially; after a first set number of refrigeration cycles, if the temperature difference interval corresponding to the first temperature difference and the second temperature difference is kept unchanged, the gear of the refrigeration fan and the gear of the refrigeration fan are adjusted in each next refrigeration cycle.
9. The method of controlling a single system refrigerator according to claim 8, wherein after a first set number and a second set number of the cooling cycles are sequentially passed, if a temperature difference interval corresponding to the first temperature difference and the second temperature difference remains unchanged, the gear of the cooling fan, the gear of the freezing fan, and the gear of the compressor are adjusted in each of the following cooling cycles, wherein the second set number is not smaller than the first set number.
10. The control method of a single system refrigerator according to claim 3, wherein in the adjusting the on probability of at least one of the refrigerating fan and the freezing fan: the start-up rate is positively correlated with a gear of a fan, wherein the fan comprises at least one of the refrigeration fan and the freezing fan, And/or the number of the groups of groups, The start-up rate is positively correlated with the ambient temperature; and/or the number of the groups of groups, And taking the set duration as a start-stop period of a fan, and controlling the start-up rate of the fan in each start-stop period, wherein the fan comprises at least one of a refrigerating fan and a freezing fan.
11. A control apparatus of a single system refrigerator, comprising: The refrigerating device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring a first temperature difference of a refrigerating chamber and a second temperature difference of a freezing chamber, the first temperature difference is a difference value between the current temperature of the refrigerating chamber and a target temperature, and the second temperature difference is a difference value between the current temperature of the freezing chamber and the target temperature; The calling module is used for calling a pre-stored regulation mode of the single-system refrigeration refrigerator based on the first temperature difference and the second temperature difference, wherein a mapping relation exists between the first temperature difference and the second temperature difference and a plurality of different regulation modes; And the adjusting module is used for adjusting at least one of the refrigerating fan, the freezing fan, the compressor and the heating wire in the refrigerating chamber based on the adjusting mode.
12. A single system refrigerator, comprising: The box body is provided with a box body, the box body is provided with a refrigerating chamber and a freezing chamber; The compressor is arranged in the box body; The refrigerating evaporator is arranged in the box body; The freezing evaporator is arranged in the box body and is connected with the refrigerating evaporator in series; the refrigerating fan is arranged in the box body and is used for blowing cold air into the refrigerating chamber; The refrigerating fan is arranged in the box body and is used for blowing cold air into the refrigerating chamber; A controller electrically connected to the compressor, the refrigerating fan and the freezing fan, the controller being for performing the control method of the single-system refrigerator according to any one of claims 1 to 10.

Description

Control method and control device of single-system refrigerator and single-system refrigerator Technical Field The invention relates to the technical field of refrigeration, in particular to a control method and device of a single-system refrigerator and the single-system refrigerator. Background In a single system refrigerator without cross-flavor, the refrigerating chamber and the freezing chamber share a set of compressors and refrigeration pipelines. When any compartment generates refrigeration demand, the compressor needs to be started to operate, but the evaporator of the compartment which is not refrigerated at the moment also works, so that the extra consumption of cold is caused, and the refrigerator has higher energy consumption and poor energy-saving effect. For this reason, the industry has proposed reducing energy consumption by reducing the rotation speed of the refrigerator blower, increasing the rotation speed of the freezer blower, and increasing the rotation speed of the compressor when the heat load of the refrigerator is lower than that of the freezer. However, in the actual operation process of the refrigerator, the thermal load states of the refrigerating chamber and the freezing chamber are dynamically changed in real time, and the adjustment mode only aiming at specific situations is difficult to meet the actual operation requirement. Disclosure of Invention The present invention is directed to solving at least one of the technical problems existing in the related art. Therefore, the invention provides a control method of a single-system refrigerator, which can adjust the rotating speeds of a refrigerating fan, a freezing fan and a compressor according to a first temperature difference between the current temperature of a refrigerating chamber and a target temperature, and determine whether a heating wire is opened or not, and preferentially refrigerates a compartment with a larger temperature difference in the adjusting process, so that the refrigerating chamber and the freezing chamber can quickly reach the target temperature, the energy-saving effect of the single-system refrigerator is improved, and the operation requirement of the single-system refrigerator is met. The invention also provides a single-system refrigerator. The invention provides a control method of a single-system refrigerator, which comprises the steps of obtaining a first temperature difference of a refrigerating chamber and a second temperature difference of a freezing chamber, wherein the first temperature difference is a difference value between the current temperature of the refrigerating chamber and a target temperature, the second temperature difference is a difference value between the current temperature of the freezing chamber and the target temperature, calling a pre-stored regulation mode of the single-system refrigerator based on the first temperature difference and the second temperature difference, wherein a mapping relation exists between the first temperature difference and the second temperature difference and a plurality of different regulation modes, and regulating at least one of a refrigerating fan, a freezing fan, a compressor and heating wires in the refrigerating chamber based on the regulation mode. The control method of the single-system refrigerator is based on the fact that a plurality of first temperature difference intervals and a plurality of second temperature difference intervals are preset according to the sequence of the temperature differences from large to small, and the adjustment modes of a refrigerating fan, a compressor and a heating wire in each first temperature difference interval and the corresponding second temperature difference interval are preset. According to the control method of the single-system refrigerator, at least one of a refrigerating fan, a freezing fan, a compressor and a heating wire in a refrigerating chamber is adjusted based on the adjusting mode, and the control method comprises the steps of adjusting the gear of at least one of the refrigerating fan, the freezing fan and the compressor, and/or adjusting the starting rate of at least one of the refrigerating fan and the freezing fan, and/or controlling the starting and stopping of the heating wire. The control method for the single-system refrigerator comprises the steps of adjusting at least one of a refrigerating fan, a freezing fan, a compressor and a heating wire in a refrigerating chamber based on an adjusting mode, increasing the rotating speed of the refrigerating fan when the first temperature difference is larger than the second temperature difference, reducing the rotating speed of the freezing fan, and decreasing the rotating speed of the refrigerating fan and increasing the rotating speed of the freezing fan when the first temperature difference is smaller than the second temperature difference. According to the control method of the single-system refrigerator, at least one of a refri