CN114935231A

CN114935231A - Control method and controller for refrigeration equipment and refrigeration equipment

Info

Publication number: CN114935231A
Application number: CN202210630213.7A
Authority: CN
Inventors: 汪猗吉; 李琦; 方茂长; 辛海亚; 王飞; 陶沙
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-08-23
Anticipated expiration: 2042-06-06
Also published as: CN114935231B

Abstract

The disclosure provides a control method for a refrigeration device, a controller and the refrigeration device. The refrigeration equipment comprises a compressor, a fan motor and a plurality of compartments, wherein the plurality of compartments comprise a freezing compartment and a refrigerating compartment. The control method comprises the following steps: after the refrigeration equipment is electrified, under the condition that a plurality of compartments have no refrigeration requirements, controlling the compressor and the fan motor to stop running, and judging whether the refrigeration compartments and the freezing compartments have refrigeration requirements or not; judging whether the refrigeration equipment meets the condition of entering an energy-saving mode or not under the condition that the refrigeration chamber has no refrigeration requirement and the refrigeration chamber has the refrigeration requirement; under the condition that the refrigeration equipment meets the condition of entering the energy-saving mode, controlling the compressor and the fan motor to maintain the state of stopping running; and controlling the compressor to maintain a stopped state and controlling the fan motor to start when the refrigeration equipment does not meet the condition of entering the energy-saving mode. The present disclosure may reduce the problem of the compressor over-working.

Description

Control method and controller for refrigeration equipment and refrigeration equipment

Technical Field

The disclosure relates to the technical field of refrigeration, and in particular relates to a control method and a controller for refrigeration equipment and the refrigeration equipment.

Background

Currently, in the related art single system air-cooled refrigerator, there are two control methods for controlling a compressor of the refrigerator.

In one control method, both start-up and shut-down of the compressor are typically controlled by the freezer compartment temperature. In the control method, when the compressor is in a stop state and a refrigerating chamber or other chambers have refrigerating requests, the refrigerating chamber or other chambers are always in the stop state, and the temperature of the refrigerating chamber or other chambers can be increased, so that the storage of food is influenced, and the preservation of the food is not facilitated.

In another control method, the compressor is turned on and off by the temperature of the freezer compartment and the temperature of the refrigerator compartment. Due to the influence of factors such as the system and the external environment, the compressor may be in a working state all the time, which causes the increase of the electric quantity.

Disclosure of Invention

The technical problem that this disclosure solved is: a control method for a refrigeration apparatus is provided to reduce the problem of compressor over-operation.

According to one aspect of the present disclosure, there is provided a control method for a refrigeration appliance, wherein the refrigeration appliance includes a compressor, a fan motor, and a plurality of compartments including a freezing compartment and a refrigerating compartment; the control method comprises the following steps: after the refrigeration equipment is powered on, under the condition that the plurality of compartments have no refrigeration requirements, controlling the compressor and the fan motor to stop running, and judging whether the refrigeration compartment and the freezing compartment have refrigeration requirements or not; judging whether the refrigeration equipment meets the condition of entering an energy-saving mode or not under the condition that the freezing chamber has no refrigeration requirement and the refrigerating chamber has the refrigeration requirement; controlling the compressor and the fan motor to maintain a state of stopping operation when the refrigeration equipment meets a condition of entering the energy-saving mode; and controlling the compressor to maintain a stopped state and controlling the fan motor to start under the condition that the refrigeration equipment does not meet the condition of entering the energy-saving mode.

In some embodiments, the control method further comprises: under the condition that the refrigeration equipment meets the condition of entering the energy-saving mode, judging whether the refrigeration chamber has a refrigeration demand in real time; and if the refrigeration requirement of the freezing compartment is determined, controlling the compressor and the fan motor to start; otherwise, the compressor and the fan motor are continuously controlled to maintain the state of stopping operation.

In some embodiments, the control method further comprises: under the condition that the refrigeration equipment does not meet the condition of entering the energy-saving mode, judging whether the refrigeration chamber has a refrigeration requirement in real time; and if the refrigerating chamber is determined to have a refrigerating requirement, controlling the compressor to start and controlling the fan motor to maintain the running state; otherwise, the compressor is continuously controlled to maintain the state of stopping operation, and the fan motor is controlled to maintain the state of operating.

In some embodiments, the determining whether the condition for entering the energy saving mode is satisfied by the refrigeration equipment comprises: the refrigeration equipment is in a non-energy-saving mode by default after being electrified, timing is carried out, and the door opening times and the door opening time of the refrigeration equipment are counted in a preset time period; judging whether the door opening times are less than or equal to a time threshold value or not, and whether the door opening time is less than or equal to a time threshold value or not; if the door opening times are smaller than or equal to the time threshold value, and the door opening time is smaller than or equal to the time threshold value, determining that the refrigeration equipment meets the condition of entering the energy-saving mode; and if the door opening times are larger than the time threshold, or the door opening time is larger than the time threshold, determining that the refrigeration equipment does not meet the condition of entering the energy-saving mode, timing, clearing, and restarting timing.

In some embodiments, the door open time comprises: at least one of a single door opening time or accumulated door opening time; the time threshold includes: at least one of a first time threshold corresponding to the single door opening time or a second time threshold corresponding to the accumulated door opening time.

In some embodiments, the door open time comprises the single door open time and the cumulative door open time; the time threshold comprises the first time threshold and the second time threshold; the judging whether the door opening time is less than or equal to a time threshold value comprises: judging whether the single door opening time is less than or equal to a first time threshold value or not and whether the accumulated door opening time is less than or equal to a second time threshold value or not; determining that the door opening time is less than or equal to the time threshold under the condition that the single door opening time is less than or equal to the first time threshold and the accumulated door opening time is less than or equal to the second time threshold; and determining that the door opening time is greater than the time threshold under the condition that the single door opening time is greater than the first time threshold or the accumulated door opening time is greater than the second time threshold.

In some embodiments, the refrigeration appliance further comprises a damper device disposed between the cold storage compartment and the freezer compartment; the control method further comprises the following steps: before controlling the compressor and the fan motor to stop running, judging whether each chamber of the plurality of chambers has a refrigeration demand; and under the condition that at least one of the compartments has a refrigeration demand, controlling the compressor and the fan motor to maintain the working state, and controlling the opening or closing of the air door device according to the refrigeration demand of the refrigerating compartment.

In some embodiments, the control method further comprises: after the compressor and the fan motor are controlled to stop running, and in the process of judging whether the refrigerating chamber and the freezing chamber have refrigerating requirements or not: under the condition that neither the freezing chamber nor the refrigerating chamber has a refrigeration demand, controlling the compressor and the fan motor to maintain a state of stopping operation; and controlling the compressor and the fan motor to start under the condition that the refrigerating chamber has a refrigerating requirement.

In some embodiments, said determining whether there is a need for cooling said refrigerated compartment comprises: receiving a temperature of the refrigerated compartment; judging whether the temperature of the refrigerating chamber is greater than or equal to a first temperature threshold value or not; if the temperature of the refrigerating chamber is greater than or equal to the first temperature threshold value, determining that the refrigerating chamber has a refrigerating requirement; and determining that there is no refrigeration demand for the refrigerated compartment if the temperature of the refrigerated compartment is less than the first temperature threshold.

In some embodiments, said determining whether there is a refrigeration demand in said freezer compartment comprises: receiving a temperature of the freezer compartment; judging whether the temperature of the freezing chamber is greater than or equal to a second temperature threshold value or not; determining that the freezing compartment has a refrigeration demand if the temperature of the freezing compartment is greater than or equal to the second temperature threshold; determining that the freezer compartment has no refrigeration demand if the temperature of the freezer compartment is less than the second temperature threshold.

According to another aspect of the present disclosure, there is provided a controller for a refrigeration appliance, wherein the refrigeration appliance includes a compressor, a fan motor, and a plurality of compartments including a freezing compartment and a refrigerating compartment; the controller includes: the first control unit is used for controlling the compressor and the fan motor to stop running under the condition that the plurality of compartments have no refrigeration requirements after the refrigeration equipment is electrified; the judging unit is used for judging whether the refrigerating chamber and the freezing chamber have refrigeration requirements or not; judging whether the refrigeration equipment meets the condition of entering an energy-saving mode or not under the condition that the freezing chamber has no refrigeration requirement and the refrigerating chamber has the refrigeration requirement; and a second control unit for controlling the compressor and the fan motor to maintain a stopped state in case the refrigerating apparatus satisfies a condition for entering the energy saving mode; and controlling the compressor to maintain a stopped state and controlling the fan motor to start under the condition that the refrigeration equipment does not meet the condition of entering the energy-saving mode.

According to another aspect of the present disclosure, there is provided a controller including: a memory; and a processor coupled to the memory, the processor configured to perform the method as previously described based on instructions stored in the memory.

According to another aspect of the present disclosure, there is provided a refrigeration apparatus including: a controller as hereinbefore described.

In some embodiments, the refrigeration appliance further comprises: the refrigerator comprises a compressor, a fan motor, a freezing chamber and a refrigerating chamber; wherein the compressor and the fan motor are electrically connected to the controller, respectively.

In some embodiments, the refrigeration appliance further comprises: the air door device is arranged between the refrigerating chamber and the freezing chamber and is electrically connected with the controller; the controller is configured to control the opening or closing of the damper device in accordance with a refrigeration demand of the refrigerated compartment.

In some embodiments, the refrigeration appliance further comprises: and the evaporator is connected with the compressor through a pipeline.

In some embodiments, the refrigeration appliance further comprises: a first temperature sensor electrically connected to the controller and configured to detect a temperature of the refrigeration compartment and transmit the temperature of the refrigeration compartment to the controller; and a second temperature sensor electrically connected to the controller and configured to detect a temperature of the freezer compartment and transmit the temperature of the freezer compartment to the controller.

In some embodiments, the refrigeration appliance is a single system air-cooled refrigerator.

According to another aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method as previously described.

The control method can reduce the problem of excessive work of the compressor, reduce the overall power consumption of the compressor and achieve the purpose of energy conservation.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram illustrating the construction of a refrigeration appliance according to some embodiments of the present disclosure;

FIG. 2 is a flow chart illustrating a control method for a refrigeration appliance according to some embodiments of the present disclosure;

FIG. 3 is a flow chart illustrating a method of determining whether a refrigeration appliance meets a condition for entering an energy savings mode according to some embodiments of the present disclosure;

FIG. 4 is a flow chart illustrating a method of determining whether a refrigeration compartment has a refrigeration demand according to some embodiments of the present disclosure;

FIG. 5 is a flow chart illustrating a method of determining whether a freezer compartment has a refrigeration demand according to some embodiments of the present disclosure;

FIG. 6 is a flow chart illustrating a control method for a refrigeration appliance according to further embodiments of the present disclosure;

FIG. 7 is a block diagram schematically illustrating the structure of a controller according to some embodiments of the present disclosure;

FIG. 8 is a block diagram that schematically illustrates a controller, in accordance with further embodiments of the present disclosure;

FIG. 9 is a block diagram schematically illustrating a configuration of a controller according to further embodiments of the present disclosure;

fig. 10 is a schematic diagram illustrating structural connections of a refrigeration appliance according to some embodiments of the present disclosure.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Fig. 1 is a schematic diagram illustrating a structure of a refrigeration apparatus according to some embodiments of the present disclosure.

In some embodiments, the refrigeration appliance 10 is a refrigerator, such as an air-cooled refrigerator. For example, the air-cooled refrigerator is a single system air-cooled refrigerator.

As shown in fig. 1, the refrigerating apparatus 10 includes a compressor 110, a fan motor 120, and a plurality of compartments. The plurality of compartments includes a freezing compartment 130 and a refrigerating compartment 135. The fan motor 120 is adjacent to the freezing compartment 130. Optionally, the compressor 110 is adjacent to the freezer compartment 130.

During operation of the refrigeration appliance, the temperature of the freezer compartment 130 is less than (i.e., lower than) the temperature of the refrigerator compartment 135. For example, during operation of the refrigeration appliance, the temperature of the freezer compartment may be-21 ℃ and the temperature of the refrigerator compartment may be 5 ℃. Of course, the temperature of the freezer compartment and the temperature of the refrigerator compartment are merely exemplary, and the scope of the present disclosure is not limited thereto.

The refrigeration unit 10 may also include an evaporator 150. The evaporator 150 is connected to the compressor 110 via line 115. Refrigerant may be transported in the line 115.

For example, the compressor 110 of the refrigeration apparatus is operated, and the evaporator 150 in the evaporator chamber cools the air flowing through the evaporator chamber, and the air is moved by the fan motor 120 and is delivered to each storage compartment through the duct, thereby achieving the refrigeration. Fig. 1 shows an air outlet direction 101 and an air return direction 102.

In some embodiments, as shown in fig. 1, the refrigeration appliance 10 may further include a damper device 140. The damper device 140 is disposed between the refrigerating compartment 135 and the freezing compartment 130. The air door device is arranged on an air duct in the refrigeration equipment. For example, the damper device is an electrically operated damper. The air door device is arranged between the air duct conveying device and each chamber, so that the air door device can be opened and closed according to whether the chamber has a refrigeration requirement or not. For example, when the refrigerating chamber has a refrigerating requirement, the air door device is opened; the refrigerating compartment has no refrigerating requirement, and the air door device is closed.

It should be noted that fig. 1 shows a refrigerating compartment and a freezing compartment, but the scope of the present disclosure is not limited thereto. For example, a refrigeration appliance may have a plurality of refrigerated compartments. In the case of a plurality of refrigerating compartments, each refrigerating compartment can be individually set and regulated in temperature, and its corresponding damper device is correspondingly increased, i.e. one damper device per refrigerating compartment.

Fig. 2 is a flowchart illustrating a control method for a refrigeration appliance according to some embodiments of the present disclosure. For example, the method may be performed by a controller disposed in a refrigeration appliance. As shown in fig. 2, the control method includes steps S202 to S208.

In step S202, when the refrigeration apparatus is powered on and there is no refrigeration demand in any of the compartments, the compressor and the fan motor are controlled to stop operating, and it is determined whether there is a refrigeration demand (which may also be referred to as a refrigeration request) in the refrigeration compartment and the freezing compartment.

In step S204, in the case where there is no cooling demand in the freezing compartment and there is a cooling demand in the refrigerating compartment, it is determined whether the refrigeration apparatus satisfies the condition for entering the energy saving mode. If so, the process advances to step S206; otherwise, the process advances to step S208.

In step S206, in case the refrigerating apparatus satisfies the condition for entering the saving mode, the compressor and the fan motor are controlled to maintain the stopped state. Therefore, the freezing chamber is kept at the low temperature as much as possible, the time for maintaining the compressor in the stop operation state is prolonged, the problem of excessive work of the compressor can be reduced, and the overall power consumption of the compressor is reduced.

In step S208, in the case where the refrigeration apparatus does not satisfy the condition for entering the saving mode, the compressor is controlled to maintain the stopped state and the fan motor is controlled to be started. By controlling the fan motor to be started, the cold air of the freezing chamber can be blown into the refrigerating chamber. Therefore, the problem of excessive work of the compressor can be reduced, the overall power consumption of the compressor is reduced, and the refrigeration requirement of the refrigerating chamber can be met as much as possible.

To this end, a control method for a refrigeration appliance according to some embodiments of the present disclosure is provided. The refrigeration equipment comprises a compressor, a fan motor and a plurality of compartments, wherein the plurality of compartments comprise a freezing compartment and a refrigerating compartment. The control method comprises the following steps: after the refrigeration equipment is electrified, under the condition that a plurality of compartments have no refrigeration requirements, controlling the compressor and the fan motor to stop running, and judging whether the refrigeration compartments and the freezing compartments have refrigeration requirements or not; judging whether the refrigeration equipment meets the condition of entering an energy-saving mode or not under the condition that the refrigeration chamber has no refrigeration requirement and the refrigeration chamber has the refrigeration requirement; under the condition that the refrigeration equipment meets the condition of entering the energy-saving mode, controlling the compressor and the fan motor to maintain the state of stopping running; and controlling the compressor to maintain a stop state and controlling the fan motor to start under the condition that the refrigeration equipment does not meet the condition of entering the energy-saving mode. The control method can reduce the problem of excessive work of the compressor, reduce the overall power consumption of the compressor and achieve the aim of energy conservation. Moreover, the method can meet the refrigeration requirement of the refrigerating chamber as much as possible. Therefore, the method can improve the temperature control accuracy of the compartment of the refrigeration equipment and improve the fresh-keeping function and the energy conservation of the refrigeration equipment.

In some embodiments, the control method may further include: under the condition that the refrigerating equipment meets the condition of entering an energy-saving mode, judging whether the refrigerating chamber has a refrigerating requirement or not in real time; and if the refrigerating chamber is determined to have the refrigerating requirement, controlling the compressor and the fan motor to start; otherwise, the compressor and the fan motor are continuously controlled to maintain the state of stopping operation. Therefore, the compressor and the fan motor can be started in time when the temperature of the freezing chamber rises until the refrigeration equipment needs to refrigerate; when the refrigerating chamber has no refrigerating requirement, the compressor and the fan motor are controlled to maintain the state of stopping operation, and the energy-saving effect is realized.

In some embodiments, the control method may further include: under the condition that the refrigeration equipment does not meet the condition of entering the energy-saving mode (namely, the refrigeration equipment is currently in the non-energy-saving mode), judging whether the refrigeration chamber has a refrigeration requirement in real time; and if the refrigerating chamber is determined to have the refrigerating requirement, controlling the compressor to start and controlling the fan motor to maintain the running state; otherwise, the compressor is continuously controlled to maintain the state of stopping operation, and the fan motor is controlled to maintain the state of operation. Therefore, the compressor can be started in time when the temperature of the freezing chamber rises until the refrigeration equipment needs to refrigerate; when the refrigerating chamber has no refrigerating requirement, the compressor is controlled to maintain the state of stopping operation, the energy-saving effect is realized, and the fan motor is controlled to maintain the state of operation, so that the refrigerating requirement of the refrigerating chamber is met as much as possible.

Fig. 3 is a flowchart illustrating a method of determining whether a refrigeration appliance meets a condition for entering an energy saving mode according to some embodiments of the present disclosure. For example, the method may be performed by a controller disposed in a refrigeration appliance. As shown in fig. 3, the method includes steps S302 to 308.

In step S302, the refrigeration device defaults to a non-energy saving mode after being powered on, counts time, and counts the door opening times and the door opening time of the refrigeration device within a preset time period.

Here, the preset time period may be set according to actual needs. For example, the preset time period may be 24 hours. Of course, those skilled in the art will appreciate that the specific values for this time period are merely exemplary and that the scope of the present disclosure is not so limited.

In step S304, it is determined whether the door opening time is less than or equal to the time threshold. If so, the process advances to step S306; otherwise, the process advances to step S308.

Here, the number threshold and the time threshold may be set according to actual needs. For example, the number threshold may be 5. Of course, those skilled in the art will appreciate that the specific values of the number threshold are merely exemplary and that the scope of the present disclosure is not so limited.

In some embodiments, the door open time may include: at least one of a single door opening time or an accumulated door opening time.

In some embodiments, the time threshold may include: at least one of the first time threshold or the second time threshold. The first time threshold corresponds to a single door opening time, and the second time threshold corresponds to an accumulated door opening time.

Here, the first time threshold and the second time threshold may be set according to actual needs. For example, the first time threshold may be 65 seconds and the second time threshold may be 90 seconds. Of course, those skilled in the art will appreciate that the specific values of the first and second time thresholds are merely exemplary and that the scope of the present disclosure is not limited in this respect.

In some embodiments of the present disclosure, the door opening time may adopt a single door opening time, and the corresponding time threshold adopts a first time threshold, so as to determine whether the door opening time is less than or equal to the time threshold; or, the door opening time may be accumulated door opening time, and the corresponding time threshold is the second time threshold, so as to determine whether the door opening time is less than or equal to the time threshold.

In other embodiments of the present disclosure, the door opening time includes a single door opening time and an accumulated door opening time; the time threshold includes a first time threshold and a second time threshold. Determining whether the door opening time is less than or equal to the time threshold comprises: judging whether the single door opening time is less than or equal to a first time threshold value or not and whether the accumulated door opening time is less than or equal to a second time threshold value or not; under the condition that the single door opening time is less than or equal to a first time threshold value and the accumulated door opening time is less than or equal to a second time threshold value, determining that the door opening time is less than or equal to the time threshold value; and determining that the door opening time is greater than the time threshold under the condition that the single door opening time is greater than the first time threshold or the accumulated door opening time is greater than the second time threshold.

In the embodiment, the door opening time can be judged by combining the single door opening time and the accumulated door opening time, so that the logic is more reasonable and the actual situation is more met.

In step S306, it is determined that the refrigeration apparatus satisfies the condition for entering the energy saving mode. That is, if the number of door openings is less than or equal to the number threshold and the door opening time is less than or equal to the time threshold, it is determined that the refrigeration apparatus satisfies the condition for entering the energy saving mode.

In step S308, it is determined that the refrigeration equipment does not meet the condition for entering the energy saving mode, and the timer is cleared and restarted. Namely, if the door opening times is greater than the time threshold, or the door opening time is greater than the time threshold, it is determined that the refrigeration equipment does not meet the condition for entering the energy-saving mode (i.e., the refrigeration equipment is still in the non-energy-saving mode at present), and the timing is cleared and restarted.

It should be noted that the "energy saving mode" and the "non-energy saving mode" mentioned in the present disclosure may be set according to actual situations or actual needs. For example, in the saving mode, both the compressor and the fan motor are maintained in a stopped state, and so on. Also for example, in the non-economized mode, at least the fan motor is in operation, and so on.

To this end, a method of determining whether a refrigeration appliance satisfies a condition for entering an energy saving mode according to some embodiments of the present disclosure is provided. The method can judge whether the refrigeration equipment meets the condition of entering the energy-saving mode, thereby facilitating the execution of subsequent processes.

FIG. 4 is a flow chart illustrating a method of determining whether a refrigeration compartment has a refrigeration demand according to some embodiments of the present disclosure.

For example, a first temperature sensor may be provided in the refrigeration compartment. The first temperature sensor is configured to detect a temperature of the refrigerated compartment and transmit the temperature of the refrigerated compartment to the controller.

For example, the method shown in fig. 4 may be performed by a controller disposed in a refrigeration appliance. As shown in fig. 4, the method includes steps S402 to S408.

In step S402, the temperature of the refrigerating compartment is received.

In step S404, it is determined whether the temperature of the refrigerating compartment is greater than or equal to a first temperature threshold. If so, the process advances to step S406; otherwise, the process advances to step S408.

Here, the first temperature threshold may be set according to actual conditions or actual needs. For example, the first temperature threshold may be determined based on a set temperature of the refrigerated compartment. For example, the first temperature threshold T _on1 Is T _on1 ＝T _S1 +T _C1 /2. Here, T _S1 The temperature set point for the cold storage compartment, for example 5 ℃; t is _C1 Is the temperature variable for the refrigerated compartment. For example, the T _C1 The value of (A) is in the range of 0 to 10 ℃.

In step S406, it is determined that the refrigerating compartment has a refrigerating requirement. That is, if the temperature of the refrigerated compartment is greater than or equal to the first temperature threshold, it is determined that the refrigerated compartment has a refrigeration demand.

In step S408, it is determined that there is no cooling demand for the refrigerated compartment. That is, if the temperature of the refrigerated compartment is less than the first temperature threshold, it is determined that there is no refrigeration demand for the refrigerated compartment.

To this end, a method of determining whether a refrigeration compartment has a refrigeration need according to some embodiments of the present disclosure is provided. The method realizes the judgment of whether the refrigerating chamber has the refrigerating requirement or not.

Fig. 5 is a flow chart illustrating a method of determining whether a freezer compartment has a refrigeration demand according to some embodiments of the present disclosure.

For example, a second temperature sensor may be provided in the freezer compartment. The second temperature sensor is configured to detect a temperature of the freezer compartment and transmit the temperature of the freezer compartment to the controller.

For example, the method illustrated in FIG. 5 may be performed by a controller disposed in a refrigeration appliance. As shown in fig. 5, the method includes steps S502 to S508.

In step S502, the temperature of the freezer compartment is received.

In step S504, it is determined whether the temperature of the freezing compartment is greater than or equal to the second temperature threshold. If so, the process advances to step S506; otherwise, the process advances to step S508.

Here, the second temperature threshold may be set according to actual conditions or actual needs. For example, the second temperature threshold may be determined based on a set temperature of the freezer compartment. For example, the second temperature threshold T _on2 Is T _on2 ＝T _S2 +T _D1 /2. Here, T _S2 The set point for the temperature of the freezer compartment, for example-21 ℃; t is _D1 Is the temperature variable for the freezer compartment. For example, the T _D1 The value of (A) is in the range of 0 to 10 ℃.

In step S506, it is determined that the freezer compartment has a cooling demand. That is, if the temperature of the freezer compartment is greater than or equal to the second temperature threshold, then it is determined that there is a refrigeration demand for the freezer compartment.

In step S508, it is determined that there is no cooling demand for the freezer compartment. That is, if the temperature of the freezer compartment is less than the second temperature threshold, it is determined that there is no refrigeration demand for the freezer compartment.

To this end, a method of determining whether a freezer compartment has a refrigeration demand according to some embodiments of the present disclosure is provided. The method realizes the judgment of whether the refrigerating chamber has the refrigerating requirement or not.

In some embodiments, the control method further comprises: before controlling the compressor and the fan motor to stop running, judging whether each chamber of the plurality of chambers has a refrigeration demand; and under the condition that at least one of the compartments has a refrigeration demand, controlling the compressor and the fan motor to maintain the working state, and controlling the opening or closing of the air door device according to the refrigeration demand of the refrigeration compartment. Therefore, the fresh-keeping effect of the refrigeration equipment can be improved.

In some embodiments, the control method further comprises: after the compressor and the fan motor are controlled to stop running, and in the process of judging whether the refrigerating chamber and the freezing chamber have refrigerating requirements or not: under the condition that neither the freezing chamber nor the refrigerating chamber has refrigeration requirements, controlling the compressor and the fan motor to maintain the state of stopping operation; and controlling the compressor and the fan motor to start under the condition that the refrigerating chamber has a refrigerating requirement. Therefore, the energy-saving effect and the fresh-keeping effect of the refrigeration equipment can be improved.

Fig. 6 is a flowchart illustrating a control method for a refrigeration appliance according to further embodiments of the present disclosure. As shown in fig. 6, the control method includes steps S602 to S634.

In step S602, the refrigeration apparatus is powered on. After being powered on, the controller can control the compressor and the fan motor to start and operate.

In step S604, it is determined whether or not each of the plurality of compartments has a cooling demand.

Here, the refrigerating apparatus includes a plurality of compartments including a refrigerating compartment and a freezing compartment. That is, this step is actually a determination of whether there is a cooling demand in the cold storage compartment and the freezer compartment. However, for the sake of distinction from the description of step S614, it is described herein as "determining whether or not there is a cooling demand for each of the plurality of compartments".

In addition, the step S604 may be executed immediately after the cooling device is powered on, or the step S604 may be executed after the cooling device is powered on for a while. The present disclosure does not limit the scope of the time period after the refrigeration unit is powered on here.

In step S606, none of the plurality of compartments has a cooling demand. That is, neither the freezing compartment nor the refrigerating compartment has a refrigeration requirement.

At step S608, at least one of the plurality of compartments has a refrigeration demand. I.e. at least one of the cold storage compartment or the freezer compartment has a refrigeration requirement. For example, both the freezer compartment and the refrigerator compartment have refrigeration requirements. For another example, there is a refrigeration requirement in the freezer compartment and no refrigeration requirement in the refrigerator compartment. For another example, there is no refrigeration requirement for the freezer compartment and there is a refrigeration requirement for the refrigerator compartment.

In step S610, the compressor and the fan motor are controlled to stop operating.

In step S612, the compressor and the fan motor are controlled to continue to operate. Namely, the compressor and the fan motor are controlled to maintain the operating state. In this step, the opening or closing of the damper device may also be controlled according to the refrigeration requirement of the refrigeration compartment.

In step S614, it is determined whether there is a cooling demand in the refrigerating compartment and the freezing compartment.

In step S616, neither the freezing compartment nor the refrigerating compartment has a cooling demand. In this case, the compressor and the fan motor are continuously controlled to maintain the stop operation.

In step S618, the freezing compartment has no cooling demand and the refrigerating compartment has a cooling demand.

In step S620, the freezer compartment has a cooling demand. For example, a freezer compartment has a refrigeration requirement and a refrigerator compartment has no refrigeration requirement. Also for example, both the freezer compartment and the refrigerator compartment have refrigeration requirements.

In step S622, it is determined whether the refrigeration apparatus satisfies the condition for entering the energy saving mode. If so, the process advances to step S624; otherwise, the process advances to step S626.

In step S624, the compressor and the fan motor are controlled to maintain the stopped state.

In step S626, the compressor is controlled to maintain the stopped operation, and the fan motor is controlled to start. The cold air in the freezing chamber is driven by the fan to enter other chambers, so that the time for recovering the starting of the compressor can be shortened.

In step S628, it is determined whether there is a cooling demand in the freezing compartment. If so, the process advances to step S630; otherwise, the process returns to step S624.

In some cases, since the compressor and the fan motor are kept out of operation, the temperature of the freezing compartment will gradually increase, and when the temperature of the freezing compartment is increased to a level at which there is a refrigeration demand, both the compressor and the fan motor are started, so that it is necessary to determine whether there is a refrigeration demand in the freezing compartment in real time.

In step S630, the compressor and fan motor are controlled to start.

In step S632, it is determined whether or not there is a cooling demand for the freezing compartment. If so, the process advances to step S634; otherwise, the process returns to step S626, i.e., the compressor is continuously maintained to be stopped and the fan motor is maintained to be operated.

In step S634, the compressor is controlled to start. At this time, the fan motor is also controlled to maintain the operating state.

To this end, a control method for a refrigeration appliance according to further embodiments is provided. The method can improve the temperature control accuracy of the compartment of the refrigeration equipment and improve the fresh-keeping function and the energy conservation of the refrigeration equipment.

In the control method of the embodiment of the disclosure, whether the fan operates is controlled differently in the process of restarting the compressor after stopping the compressor, so that the purposes of energy saving and accurate temperature control are achieved. The fan is not started, and the compartment reaches the starting point of the compressor in a free temperature return mode, so that the starting rate of the compressor is reduced, and the aim of saving energy is fulfilled; the fan is started to operate, the temperature of the freezing chamber is quickly returned in a mode of pumping cold air, the starting point of the compressor is reached, the temperature of the chamber is guaranteed, and accurate temperature control is achieved.

Fig. 7 is a block diagram schematically illustrating a structure of a controller according to some embodiments of the present disclosure.

The controller is used for a refrigeration device, the refrigeration device comprises a compressor, a fan motor and a plurality of compartments, and the plurality of compartments comprise a freezing compartment and a refrigerating compartment. During operation of the refrigeration appliance, the temperature of the freezer compartment is less than the temperature of the refrigerator compartment.

As shown in fig. 7, the controller includes a first control unit 702, a judgment unit 704, and a second control unit 706.

The first control unit 702 is configured to control the compressor and the fan motor to stop operating when there is no cooling demand in any of the plurality of compartments after the cooling apparatus is powered on.

The judging unit 704 is used for judging whether the refrigerating chamber and the freezing chamber have refrigeration requirements; and under the condition that the freezing chamber has no refrigeration demand and the refrigerating chamber has refrigeration demand, judging whether the refrigeration equipment meets the condition of entering an energy-saving mode.

The second control unit 706 is configured to control the compressor and the fan motor to maintain a stopped state when the refrigeration apparatus meets a condition for entering the energy saving mode; and controlling the compressor to maintain a stopped state and controlling the fan motor to start when the refrigeration equipment does not meet the condition of entering the energy-saving mode.

To this end, a controller according to some embodiments of the present disclosure is provided. The controller is used for refrigeration equipment, can reduce the problem of excessive work of the compressor, reduce the overall power consumption of the compressor, achieve the purpose of energy conservation, and can meet the refrigeration requirement of a cold storage chamber as much as possible. Therefore, the controller can improve the temperature control accuracy of the compartment of the refrigeration equipment and improve the fresh-keeping function and the energy conservation of the refrigeration equipment.

In some embodiments, the determining unit 704 may be further configured to determine whether the refrigerating compartment has a refrigerating requirement in real time if the refrigerating apparatus satisfies the condition for entering the energy saving mode. The second control unit 706 may also be used to control the compressor and fan motor to start if it is determined that there is a refrigeration demand in the freezer compartment; otherwise, the compressor and the fan motor are continuously controlled to maintain the state of stopping operation.

In some embodiments, the determining unit 704 may be further configured to determine whether the refrigeration compartment has a refrigeration requirement in real time when the refrigeration equipment does not meet the condition for entering the energy saving mode. The second control unit 706 is further configured to control the compressor to start and control the fan motor to maintain an operating state if it is determined that the freezing compartment has a refrigeration demand; otherwise, the compressor is continuously controlled to maintain the state of stopping running, and the fan motor is controlled to maintain the state of running.

In some embodiments, the determining unit 704 is configured to: the method comprises the steps that after the refrigeration equipment is powered on, a non-energy-saving mode is defaulted, timing is conducted, and the door opening times and the door opening time of the refrigeration equipment are counted within a preset time period; judging whether the door opening times are less than or equal to a time threshold value or not, and whether the door opening time is less than or equal to a time threshold value or not; if the door opening times are less than or equal to the time threshold value and the door opening time is less than or equal to the time threshold value, determining that the refrigeration equipment meets the condition of entering the energy-saving mode; and if the door opening times are larger than the time threshold value, or the door opening time is larger than the time threshold value, determining that the refrigeration equipment does not meet the condition of entering the energy-saving mode, timing, clearing, and restarting timing.

In some embodiments, the door open time comprises: at least one of a single door opening time or accumulated door opening time; the time threshold includes: at least one of a first time threshold corresponding to a single door opening time or a second time threshold corresponding to an accumulated door opening time.

In some embodiments, the door opening time includes a single door opening time and an accumulated door opening time; the time threshold includes a first time threshold and a second time threshold. The judging unit 704 is configured to judge whether the single door opening time is less than or equal to a first time threshold, and whether the accumulated door opening time is less than or equal to a second time threshold; under the condition that the single door opening time is less than or equal to the first time threshold and the accumulated door opening time is less than or equal to the second time threshold, determining that the door opening time is less than or equal to the time threshold; and determining that the door opening time is greater than the time threshold under the condition that the single door opening time is greater than the first time threshold or the accumulated door opening time is greater than the second time threshold.

In some embodiments, the refrigeration appliance further comprises a damper device disposed between the refrigerated compartment and the freezer compartment. The determination unit 704 may also be used to determine whether each of the plurality of compartments has a cooling demand before controlling the compressor and the fan motor to stop operating. The first control unit 702 may also be used to control the compressor and fan motor to maintain operation in the event that at least one of the compartments has a cooling demand, and to control the opening or closing of the damper device according to the cooling demand of the refrigerated compartment.

In some embodiments, the first control unit 702 is configured to, after controlling the compressor and the fan motor to stop operating, and in determining whether there is a cooling demand in the refrigerating compartment and the freezing compartment: under the condition that neither the freezing chamber nor the refrigerating chamber has refrigeration requirements, controlling the compressor and the fan motor to maintain the state of stopping operation; and controlling the starting of the compressor and the fan motor under the condition that the refrigerating chamber has a refrigerating requirement.

In some embodiments, the determining unit 704 is configured to: receiving a temperature of the refrigerated compartment; judging whether the temperature of the refrigerating chamber is greater than or equal to a first temperature threshold value or not; if the temperature of the refrigerating chamber is greater than or equal to the first temperature threshold value, determining that the refrigerating chamber has a refrigerating requirement; and determining that there is no refrigeration demand for the refrigerated compartment if the temperature of the refrigerated compartment is less than the first temperature threshold.

In some embodiments, the determining unit 704 is configured to: receiving a temperature of a freezer compartment; judging whether the temperature of the freezing chamber is greater than or equal to a second temperature threshold value or not; if the temperature of the freezing chamber is greater than or equal to the second temperature threshold value, determining that the freezing chamber has a refrigeration demand; if the temperature of the freezer compartment is less than the second temperature threshold, it is determined that there is no refrigeration demand for the freezer compartment.

FIG. 8 is a block diagram that schematically illustrates a controller, in accordance with further embodiments of the present disclosure. The controller includes a memory 810 and a processor 820. Wherein:

the memory 810 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is used for storing instructions in at least one corresponding embodiment in fig. 2 to fig. 6.

Processor 820 is coupled to memory 810 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 820 is used for executing the instructions stored in the memory, so that the problem of excessive work of the compressor can be reduced, the overall power consumption of the compressor is reduced, and the aim of saving energy is fulfilled.

In one embodiment, as also shown in FIG. 9, the controller 900 includes a memory 910 and a processor 920. Processor 920 is coupled to memory 910 by a BUS 930. The controller 900 may also be coupled to an external storage device 950 via a storage interface 940 for retrieving external data, and may also be coupled to a network or another computer system (not shown) via a network interface 960, which will not be described in detail herein.

In the embodiment, the data instruction is stored in the memory, and the processor processes the instruction, so that the problem of excessive work of the compressor can be reduced, the overall power consumption of the compressor is reduced, and the aim of saving energy is fulfilled.

In some embodiments of the present disclosure, there is also provided a refrigeration appliance including a controller as previously described.

Fig. 10 is a schematic diagram illustrating structural connections of a refrigeration appliance according to some embodiments of the present disclosure. For example, the refrigeration appliance is a single system air-cooled refrigerator.

As shown in fig. 10, the refrigeration appliance includes a controller 1010. The controller 1010 may be the controller shown in fig. 7, 8, or 9.

In some embodiments, as shown in fig. 10 and 1, the refrigeration appliance further comprises: compressor 110, fan motor 120, freezer compartment 130, and refrigerator compartment 135. The compressor 110 and the fan motor 120 are electrically connected to the controller 1010, respectively.

In some embodiments, as shown in fig. 10 and 1, the refrigeration appliance further includes a damper device 140. The damper device 140 is disposed between the refrigerating compartment 135 and the freezing compartment 130, and is electrically connected to the controller 1010. The controller 1010 is configured to control the opening or closing of the damper device based on the refrigeration demand of the refrigerated compartment.

In some embodiments, as shown in fig. 1, the refrigeration appliance further comprises an evaporator 150. The evaporator 150 is connected to the compressor 110 via line 115.

In some embodiments, as shown in fig. 10, the refrigeration appliance further comprises a first temperature sensor 1021. The first temperature sensor 1021 is electrically connected to the controller 1010. The first temperature sensor 1021 is configured to detect a temperature of the refrigeration compartment and transmit the temperature of the refrigeration compartment to the controller.

In some embodiments, as shown in fig. 10, the refrigeration appliance further comprises a second temperature sensor 1022. The second temperature sensor 1022 is electrically connected to the controller 1010. The second temperature sensor 1022 is configured to detect the temperature of the freezer compartment and transmit the temperature of the freezer compartment to the controller.

In other embodiments, the present disclosure also provides a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) having stored thereon computer program instructions that, when executed by a processor, implement the steps of the method in at least one of the corresponding embodiments of fig. 2-6. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A control method for a refrigeration appliance, wherein the refrigeration appliance includes a compressor, a fan motor, and a plurality of compartments including a freezer compartment and a refrigerator compartment;

the control method comprises the following steps:

after the refrigeration equipment is powered on, under the condition that the plurality of compartments have no refrigeration requirements, controlling the compressor and the fan motor to stop running, and judging whether the refrigeration compartments and the freezing compartments have refrigeration requirements or not;

judging whether the refrigeration equipment meets the condition of entering an energy-saving mode or not under the condition that the freezing chamber has no refrigeration requirement and the refrigerating chamber has the refrigeration requirement;

controlling the compressor and the fan motor to maintain a state of stopping operation when the refrigeration equipment meets a condition of entering the energy-saving mode; and

and under the condition that the refrigeration equipment does not meet the condition of entering the energy-saving mode, controlling the compressor to maintain the state of stopping running, and controlling the fan motor to start.

2. The control method according to claim 1, further comprising:

under the condition that the refrigeration equipment meets the condition of entering the energy-saving mode, judging whether the refrigeration chamber has a refrigeration demand in real time; and

if the refrigerating chamber is determined to have the refrigerating requirement, controlling the compressor and the fan motor to start; otherwise, the compressor and the fan motor are continuously controlled to maintain the state of stopping operation.

3. The control method according to claim 1, further comprising:

under the condition that the refrigeration equipment does not meet the condition of entering the energy-saving mode, judging whether the refrigeration chamber has a refrigeration requirement in real time; and

if the refrigerating chamber is determined to have a refrigerating requirement, controlling the compressor to start and controlling the fan motor to maintain the running state; otherwise, the compressor is continuously controlled to maintain the state of stopping operation, and the fan motor is controlled to maintain the state of operating.

4. The control method of claim 1, wherein the determining whether the refrigeration appliance meets the condition for entering the energy saving mode comprises:

the method comprises the following steps that after the refrigeration equipment is powered on, a non-energy-saving mode is defaulted, timing is conducted, and in a preset time period, the door opening times and the door opening time of the refrigeration equipment are counted;

judging whether the door opening times are less than or equal to a time threshold value or not, and whether the door opening time is less than or equal to a time threshold value or not;

if the door opening times are smaller than or equal to the time threshold value, and the door opening time is smaller than or equal to the time threshold value, determining that the refrigeration equipment meets the condition of entering the energy-saving mode;

and if the door opening times are larger than the time threshold, or the door opening time is larger than the time threshold, determining that the refrigeration equipment does not meet the condition of entering the energy-saving mode, timing, clearing, and restarting timing.

5. The control method according to claim 4, wherein:

the door opening time comprises: at least one of a single door opening time or accumulated door opening time;

the time threshold includes: at least one of a first time threshold corresponding to the single door opening time or a second time threshold corresponding to the accumulated door opening time.

6. The control method according to claim 5, wherein:

the door opening time comprises the single door opening time and the accumulated door opening time;

the time threshold comprises the first time threshold and the second time threshold;

the judging whether the door opening time is less than or equal to a time threshold value comprises: judging whether the single door opening time is less than or equal to a first time threshold value or not and whether the accumulated door opening time is less than or equal to a second time threshold value or not;

determining that the door opening time is less than or equal to the time threshold under the condition that the single door opening time is less than or equal to the first time threshold and the accumulated door opening time is less than or equal to the second time threshold;

and determining that the door opening time is greater than the time threshold under the condition that the single door opening time is greater than the first time threshold or the accumulated door opening time is greater than the second time threshold.

7. The control method according to claim 1, wherein the refrigeration appliance further comprises a damper device provided between the refrigerating compartment and the freezing compartment;

the control method further comprises the following steps:

before controlling the compressor and the fan motor to stop running, judging whether each chamber of the plurality of chambers has a refrigeration demand; and

and under the condition that at least one of the compartments has a refrigeration demand, controlling the compressor and the fan motor to maintain the working state, and controlling the opening or closing of the air door device according to the refrigeration demand of the refrigerating compartment.

8. The control method according to claim 7, further comprising:

after the compressor and the fan motor are controlled to stop running, and in the process of judging whether the refrigerating chamber and the freezing chamber have refrigerating requirements or not:

under the condition that neither the freezing chamber nor the refrigerating chamber has a refrigeration demand, controlling the compressor and the fan motor to maintain a state of stopping operation; and

and under the condition that the refrigerating chamber has a refrigerating requirement, controlling the compressor and the fan motor to start.

9. The control method of claim 1, wherein said determining whether the refrigeration compartment has a refrigeration demand comprises:

receiving a temperature of the refrigerated compartment;

judging whether the temperature of the refrigerating chamber is greater than or equal to a first temperature threshold value or not;

if the temperature of the refrigerating compartment is greater than or equal to the first temperature threshold value, determining that the refrigerating compartment has a refrigerating requirement; and

determining that there is no refrigeration demand for the refrigerated compartment if the temperature of the refrigerated compartment is less than the first temperature threshold.

10. The control method of claim 1, wherein said determining whether the freezer compartment has a refrigeration demand comprises:

receiving a temperature of the freezer compartment;

judging whether the temperature of the freezing chamber is greater than or equal to a second temperature threshold value or not;

determining that the freezing compartment has a refrigeration demand if the temperature of the freezing compartment is greater than or equal to the second temperature threshold; and

determining that the freezer compartment has no refrigeration demand if the temperature of the freezer compartment is less than the second temperature threshold.

11. A controller for a refrigeration appliance, wherein the refrigeration appliance includes a compressor, a fan motor, and a plurality of compartments including a freezer compartment and a refrigerator compartment;

the controller includes:

the first control unit is used for controlling the compressor and the fan motor to stop running under the condition that the plurality of compartments have no refrigeration requirements after the refrigeration equipment is electrified;

the judging unit is used for judging whether the refrigerating chamber and the freezing chamber have refrigeration requirements or not; judging whether the refrigeration equipment meets the condition of entering an energy-saving mode or not under the condition that the freezing chamber has no refrigeration requirement and the refrigerating chamber has the refrigeration requirement; and

a second control unit for controlling the compressor and the fan motor to maintain a stopped state when the refrigeration apparatus satisfies a condition for entering the energy saving mode; and under the condition that the refrigeration equipment does not meet the condition of entering the energy-saving mode, controlling the compressor to maintain the state of stopping running, and controlling the fan motor to start.

12. A controller, comprising:

a memory; and

a processor coupled to the memory, the processor configured to perform the method of any of claims 1-10 based on instructions stored in the memory.

13. A refrigeration appliance comprising: a controller as claimed in claim 11 or 12.

14. The refrigeration appliance of claim 13 further comprising:

the refrigerator comprises a compressor, a fan motor, a freezing chamber and a refrigerating chamber;

wherein the compressor and the fan motor are electrically connected to the controller, respectively.

15. The refrigeration appliance of claim 14, further comprising:

the air door device is arranged between the refrigerating chamber and the freezing chamber and is electrically connected with the controller;

the controller is configured to control the opening or closing of the damper device in accordance with a refrigeration demand of the refrigerated compartment.

16. The refrigeration appliance of claim 14, further comprising:

and the evaporator is connected with the compressor through a pipeline.

17. The refrigeration appliance of claim 14, further comprising:

a first temperature sensor electrically connected to the controller and configured to detect a temperature of the refrigeration compartment and transmit the temperature of the refrigeration compartment to the controller; and

a second temperature sensor electrically connected to the controller and configured to detect a temperature of the freezer compartment and transmit the temperature of the freezer compartment to the controller.

18. The refrigeration appliance of claim 13, wherein the refrigeration appliance is a single system air cooled refrigerator.

19. A computer-readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method of any one of claims 1 to 10.