Refrigerator and control method thereof

Abstract

The invention discloses a refrigerator and a control method thereof.The control method includes the steps that frequency related parameters of the refrigerator in the last set period are obtained, and the frequency related parameters include the door opening frequency of a compartment, the environment temperature, the set temperature of the compartment and the temperature of the compartment; the frequency parameter of the compressor is adjusted according to the environment temperature, the chamber temperature, the set temperature and the door opening frequency of the refrigerator so as to control the compressor of the refrigerator, and the purposes of rapid refrigeration and energy consumption reduction of the refrigerator are effectively achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigerator, in particular to a refrigerator and a control method thereof. BACKGROUND

[0002] With the improvement of people's living standards, the refrigerator has become a common household appliance in people's daily life, which is used to provide low-temperature preservation service for food and medicine. In order to save energy consumption, the existing refrigerator adopts variable frequency operation mode, but the current variable frequency operation mode generally uses higher frequency to run the compressor when the refrigerator does not reach the set temperature value, and the compressor maintains the internal temperature of the refrigerator at a lower frequency when the refrigerator reaches the set temperature value. This operation mode only considers the temperature condition of the refrigerator, and cannot effectively make the refrigerator cool quickly and reduce energy consumption. SUMMARY

[0003] The purpose of the embodiment of the present application is to provide an air conditioning device and a defrosting control method thereof, which can determine the frequency parameter of the compressor according to the ambient temperature, the chamber temperature, the set temperature and the door opening times of the refrigerator, so as to control the compressor of the refrigerator, and effectively realize the purpose of quick cooling and energy consumption reduction of the refrigerator.

[0004] To achieve the above purpose, the embodiment of the present application provides a refrigerator, comprising:

[0005] a cabinet, which is internally provided with a chamber and a refrigeration system; the chamber is used for storing articles, and the refrigeration system is used for providing power for the refrigeration cycle of the refrigerator, and comprises a compressor, an evaporator, a pressure reducer and a condenser;

[0006] a door body, which is arranged at the opening of the chamber;

[0007] an ambient temperature detection device, which is arranged on the shell of the refrigerator and is used for detecting the ambient temperature;

[0008] a chamber temperature detection device, which is arranged in the chamber and is used for detecting the chamber temperature;

[0009] a door switch detection device, which is used for detecting the opening and closing state of the door body;

[0010] a controller, which is used for:

[0011] obtaining the frequency related parameters of the refrigerator in the last set period, wherein the frequency related parameters comprise the door opening times of the chamber, the ambient temperature, the set temperature of the chamber and the chamber temperature;

[0012] calculating a first frequency coefficient according to the ambient temperature; wherein the first frequency coefficient is in a positive correlation with the ambient temperature;

[0013] The second frequency coefficient is calculated according to the chamber set temperature; wherein the second frequency coefficient is positively correlated with the chamber set temperature;

[0014] The third frequency coefficient is calculated according to the chamber door opening times, the chamber set temperature and the chamber temperature;

[0015] The compressor frequency parameter is calculated according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; wherein the compressor frequency parameter is positively correlated with the first frequency coefficient, the second frequency coefficient and the third frequency coefficient respectively;

[0016] The compressor frequency parameter is calculated according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; wherein the compressor frequency parameter is positively correlated with the first frequency coefficient, the second frequency coefficient and the third frequency coefficient respectively;

[0017] As an improvement of the above-mentioned scheme, the chamber comprises a refrigeration chamber and a freezing chamber, and the chamber set temperature comprises a refrigeration chamber set temperature and a freezing chamber set temperature;

[0018] The second frequency coefficient is calculated according to the chamber set temperature, comprising:

[0019] The refrigeration regular set temperature and the freezing regular set temperature are obtained;

[0020] The difference between the refrigeration regular set temperature and the refrigeration chamber set temperature is multiplied by a preset first heat load coefficient to obtain a refrigeration influence coefficient;

[0021] The difference between the freezing regular set temperature and the freezing chamber set temperature is multiplied by a preset second heat load coefficient to obtain a freezing influence coefficient; wherein the first heat load coefficient is smaller than the second heat load coefficient;

[0022] The refrigeration influence coefficient and the freezing influence coefficient are added to obtain the second frequency coefficient.

[0023] As an improvement of the above-mentioned scheme, the chamber comprises a refrigeration chamber and a freezing chamber, and the chamber set temperature comprises a refrigeration chamber set temperature and a freezing chamber set temperature;

[0024] The third frequency coefficient is calculated according to the chamber door opening times, the chamber set temperature and the chamber temperature, comprising:

[0025] The third frequency coefficient is zero when the number of times the refrigeration chamber is opened and the number of times the freezer chamber is opened are zero.

[0026] The third frequency coefficient is calculated according to the first chamber set temperature and the first chamber temperature when the number of times the first chamber is opened is not zero and the number of times the second chamber is opened is zero, wherein the first chamber is one of the refrigeration chamber and the freezer chamber, the second chamber is the other of the refrigeration chamber and the freezer chamber, and the third frequency coefficient is positively correlated with the difference between the first chamber temperature and the first chamber set temperature.

[0027] The third frequency coefficient is calculated according to the freezer chamber set temperature, the freezer chamber temperature, the refrigeration chamber set temperature and the refrigeration chamber temperature when the number of times the refrigeration chamber is opened and the number of times the freezer chamber are opened are not zero, wherein the third frequency coefficient is positively correlated with the difference between the freezer chamber temperature and the freezer chamber set temperature and the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature, respectively.

[0028] As an improvement of the above-mentioned scheme, the third frequency coefficient is calculated according to the first chamber set temperature and the first chamber temperature when the number of times the first chamber is opened is not zero and the number of times the second chamber is opened is zero, comprising:

[0029] The third frequency coefficient is zero when the difference between the first chamber temperature and the first chamber set temperature is less than or equal to the preset difference value of the first chamber when the number of times the first chamber is opened is not zero and the number of times the second chamber is opened is zero, wherein the preset difference value of the refrigeration chamber is greater than the preset difference value of the freezer chamber.

[0030] The third frequency coefficient is obtained by multiplying the difference between the first chamber temperature and the first chamber set temperature by the compensation coefficient of the first chamber after the difference between the first chamber temperature and the first chamber set temperature is subtracted by the preset difference value of the first chamber when the number of times the first chamber is opened is not zero and the number of times the second chamber is opened is zero, wherein the compensation coefficient of the refrigeration chamber is less than the compensation coefficient of the freezer chamber.

[0031] As an improvement of the above-mentioned scheme, the third frequency coefficient is calculated according to the freezer chamber set temperature, the freezer chamber temperature, the refrigeration chamber set temperature and the refrigeration chamber temperature when the number of times the refrigeration chamber is opened and the number of times the freezer chamber are opened are not zero, comprising:

[0032] The third frequency coefficient is calculated according to the freezer chamber set temperature, the freezer chamber temperature, the refrigeration chamber set temperature and the refrigeration chamber temperature when the number of times the refrigeration chamber is opened and the number of times the freezer chamber are opened are not zero, wherein the third frequency coefficient is positively correlated with the difference between the freezer chamber temperature and the freezer chamber set temperature and the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature, respectively.

[0033] If the difference between the temperature of the refrigeration chamber and the set temperature of the refrigeration chamber is less than or equal to the preset difference value of the refrigeration chamber and the difference between the temperature of the freezing chamber and the set temperature of the freezing chamber is less than or equal to the preset difference value of the freezing chamber, the third frequency coefficient is zero.

[0034] If the difference between the temperature of the first chamber and the set temperature of the first chamber is greater than the preset difference value of the first chamber and the difference between the temperature of the second chamber and the set temperature of the second chamber is less than or equal to the preset difference value of the second chamber, the difference between the temperature of the first chamber and the set temperature of the first chamber is multiplied by the compensation coefficient of the first chamber after the preset difference value of the first chamber is subtracted, and a first chamber frequency coefficient is obtained as the third frequency coefficient; wherein the compensation coefficient of the refrigeration chamber is less than the compensation coefficient of the freezing chamber, the first chamber frequency coefficient is the refrigeration chamber frequency coefficient or the freezing chamber frequency coefficient, and the preset difference value of the refrigeration chamber is greater than the preset difference value of the freezing chamber.

[0035] When the number of times of opening the door of the refrigeration chamber and the number of times of opening the door of the freezing chamber are both not zero, if the difference between the temperature of the refrigeration chamber and the set temperature of the refrigeration chamber is greater than the preset difference value of the refrigeration chamber and the difference between the temperature of the freezing chamber and the set temperature of the freezing chamber is greater than the preset difference value of the freezing chamber, the third frequency coefficient is obtained by adding the refrigeration frequency coefficient and the freezing frequency coefficient.

[0036] As an improvement of the above-mentioned scheme, the first frequency coefficient is calculated according to the ambient temperature, comprising:

[0037] When the ambient temperature is less than or equal to a preset ambient temperature threshold, the first frequency coefficient is a set ambient temperature correction coefficient;

[0038] When the ambient temperature is greater than the preset ambient temperature threshold, the difference between the ambient temperature and the preset ambient temperature threshold is multiplied by a set ambient temperature coefficient, and then the set ambient temperature correction coefficient is added to obtain the first frequency coefficient.

[0039] As an improvement of the above-mentioned scheme, the controller is further configured to:

[0040] When the continuous running time length of the compressor is greater than a running time length threshold, the compressor is controlled to run at the historical maximum running frequency in the current continuous running time length until the chamber temperature reaches the set shutdown temperature; wherein the continuous running time length comprises at least one set period.

[0041] As an improvement of the above-mentioned scheme, the controller is further configured to:

[0042] During the shutdown of the compressor, a compressor frequency parameter is calculated according to a set period.

[0043] When the compressor is started, the maximum value is selected from all the compressor frequency parameters calculated during the latest stop period to control the operation of the compressor in the first set period after starting.

[0044] As an improvement of the above scheme, the compressor frequency parameter is calculated according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient, including: adding the first frequency coefficient, the second frequency coefficient and the third frequency coefficient and taking an integer to obtain the compressor frequency parameter.

[0045] To achieve the above object, the embodiment of the present application further provides a refrigerator control method, comprising:

[0046] Obtaining the frequency related parameters of the refrigerator in the last set period, wherein the frequency related parameters include the number of compartment door opening times, the ambient temperature, the compartment set temperature and the compartment temperature;

[0047] Calculating a first frequency coefficient according to the ambient temperature; wherein the first frequency coefficient has a positive correlation with the ambient temperature;

[0048] Calculating a second frequency coefficient according to the compartment set temperature; wherein the second frequency coefficient has a positive correlation with the compartment set temperature;

[0049] Calculating a third frequency coefficient according to the number of compartment door opening times, the compartment set temperature and the compartment temperature;

[0050] Comprehensively calculating a compressor frequency parameter according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; wherein the compressor frequency parameter has a positive correlation with the first frequency coefficient, the second frequency coefficient and the third frequency coefficient respectively;

[0051] Controlling the operation of the compressor of the refrigerator in the current set period according to the compressor frequency parameter.

[0052] Compared with the prior art, the refrigerator and the control method thereof disclosed by the embodiment of the present application firstly acquire the frequency related parameters of the refrigerator in the last setting period, wherein the frequency related parameters include the number of times of opening the door of the compartment, the ambient temperature, the set temperature of the compartment and the temperature of the compartment; then, a first frequency coefficient is determined according to the ambient temperature; wherein the first frequency coefficient is in a positive correlation with the ambient temperature; a second frequency coefficient is determined according to the set temperature of the compartment; wherein the second frequency coefficient is in a positive correlation with the set temperature of the compartment; a third frequency coefficient is determined according to the number of times of opening the door of the compartment, the set temperature of the compartment and the temperature of the compartment; then, a compressor frequency parameter is comprehensively calculated according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; finally, the compressor frequency parameter is used to control the operation of the compressor in the current setting period. Therefore, the embodiment of the present application adjusts the compressor frequency parameter according to the ambient temperature, the temperature of the compartment, the set temperature and the number of times of opening the door of the refrigerator to control the compressor of the refrigerator, thereby effectively achieving the purposes of rapid refrigeration and energy consumption reduction of the refrigerator. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 is a perspective view of a refrigerator provided by the embodiment of the present application;

[0054] Figure 2 is a perspective view of a refrigerator door provided by the embodiment of the present application;

[0055] Figure 3 is a structural schematic view of a refrigeration system provided by the embodiment of the present application;

[0056] Figure 4 is a first work flow chart of a controller provided by the embodiment of the present application;

[0057] Figure 5 is a second work flow chart of a controller provided by the embodiment of the present application;

[0058] Figure 6 is a third work flow chart of a controller provided by the embodiment of the present application;

[0059] Figure 7 is a fourth work flow chart of a controller provided by the embodiment of the present application;

[0060] Figure 8 is a fifth work flow chart of a controller provided by the embodiment of the present application;

[0061] Figure 9 is a sixth work flow chart of a controller provided by the embodiment of the present application;

[0062] Figure 10 is a seventh work flow chart of a controller provided by the embodiment of the present application;

[0063] Figure 11 is the eighth working flowchart of the controller provided by the embodiment of the application;

[0064] Figure 12 is the ninth working flowchart of the controller provided by the embodiment of the application;

[0065] Figure 13 is the flowchart of the refrigerator control method provided by the embodiment of the application.

[0066] Wherein, 100, cabinet, 200, door body, 210, door body shell, 220, door body inner container, 230, upper end cover, 240, lower end cover;1, compressor, 2, condenser, 3, anti-condensation pipe, 4, drying filter, 5, pressure reducer, 6, evaporator, 7, gas-liquid separator. DETAILED DESCRIPTION

[0067] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0068] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0069] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "a plurality of" means two or more.

[0070] In the description of the present application, it is necessary to point out that unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0071] Referring to Figure 1 , Figure 1 is a perspective view of a refrigerator provided by an embodiment of the present application. The refrigerator of the present embodiment has a shape similar to a cuboid. The refrigerator comprises a cabinet 100 defining a storage space and a plurality of door bodies 200 arranged at the opening of the cabinet 100. As shown in Figure 2 , the door body 200 comprises a door body shell 210 located outside the cabinet 100, a door body inner container 220 located inside the cabinet 100, an upper end cover 230, a lower end cover 240, and a thermal insulation layer located between the door body shell 210, the door body inner container 220, the upper end cover 230, and the lower end cover 240. Generally, the thermal insulation layer is filled with foaming material. The cabinet 100 is provided with a cavity, wherein the cavity comprises a component storage cavity for placing components in the refrigerator, such as a compressor, and a storage space for storing food and the like. The refrigerator of the present embodiment comprises a refrigeration system, as shown in Figure 3 , a structural schematic diagram of the refrigeration system. The refrigeration system is arranged in the component storage cavity and is used to provide power for the refrigeration cycle of the refrigerator, and comprises a compressor, an evaporator, a pressure reducer, and a condenser. The storage space can be divided into a plurality of compartments, and the compartments can be configured as refrigeration compartments, freezing compartments, or the like according to different purposes. Each compartment is provided with one or more door bodies, for example, in Figure 1 , the upper compartment is provided with a double-door body. The door body can be pivotally arranged at the opening of the cabinet, or can be a drawer type opening to realize drawer type storage.

[0072] The inner wall of the compartment is provided with a compartment temperature detection device (not shown in the figure), which can be a temperature sensor. The probe of the temperature sensor is exposed to the storage space of the compartment for detecting the temperature of the compartment. The shell of the refrigerator is also provided with an ambient temperature detection device (not shown in the figure) for detecting the ambient temperature. The ambient temperature detection device can be a temperature sensor, and the probe of the temperature sensor is exposed to the air of the environment where the refrigerator is located.

[0073] It is worth mentioning that the temperature sensor refers to a sensor capable of sensing temperature and converting into a usable output signal, and can be divided into two categories of contact type and non-contact type according to the measurement method, and can be divided into two categories of thermal resistance and thermocouple according to the characteristics of the sensor material and electronic element, and the manufacturer can select a specific type of temperature sensor according to the actual application requirement. The specific type of the chamber temperature detection device and the ambient temperature detection device and the specific installation position of the chamber and the refrigerator shell can be set according to the actual requirement, which is not limited here.

[0074] The refrigerator is also provided with a door switch detection device (not shown in the figure) for detecting the opening and closing state (open door state or closed door state) of the door body 200, and the controller is connected with the door switch detection device for acquiring the opening and closing state of the door body 200 collected by the door switch detection device and calculating the opening time, the opening frequency and other parameters. The door switch detection device can be a door switch sensor, such as a Hall sensor, and the specific type of the door switch detection device and the specific installation position of the refrigerator can be set according to the actual requirement, which is not limited here.

[0075] Referring to Figure 3 , Figure 3 is a structural schematic diagram of a refrigeration system in a refrigerator provided by the embodiment of the present application, and the refrigeration system comprises a compressor 1, a condenser 2, an anti-condensation pipe 3, a drying filter 4, a pressure reducer 5, an evaporator 6 and a gas-liquid separator 7. The working process of the refrigeration system comprises a compression process, a condensation process, a throttling process and an evaporation process.

[0076] Among them, in combination Figure 3 , the compression process is that the power cord of the refrigerator is plugged in, and the compressor 1 starts to work under the condition that the contact of the temperature controller is connected, and the low-temperature and low-pressure refrigerant is sucked into the compressor 1, compressed into high-temperature and high-pressure superheated gas in the cylinder of the compressor 1, and then discharged into the condenser 2; the condensation process is that the high-temperature and high-pressure refrigerant gas is cooled by the condenser 2, the temperature is continuously lowered, and gradually cooled into saturated steam at normal temperature and high pressure, and further cooled into saturated liquid, and the temperature no longer decreases, and the temperature at this time is called the condensation temperature, and the pressure of the refrigerant in the entire condensation process is almost unchanged; the throttling process is that the condensed refrigerant saturated liquid is filtered to remove water and impurities through the drying filter 4, and then flows into the pressure reducer 5 (such as a capillary tube), and is throttled and reduced in pressure through the pressure reducer 5, and the refrigerant becomes wet steam at normal temperature and low pressure; the evaporation process is that the wet steam at normal temperature and low pressure starts to absorb heat to vaporize in the evaporator 6, not only lowers the temperature of the evaporator and its surrounding, but also makes the refrigerant into a low-temperature and low-pressure gas, and the refrigerant discharged from the evaporator 6 is returned to the compressor 1 again after passing through the gas-liquid separator 7, and the above process is repeated, the heat in the refrigerator is transferred to the air outside the box, and the purpose of refrigeration is achieved.

[0077] Specifically, the refrigerator further comprises a controller, in the embodiment of the present application, the controller is configured to: acquire frequency-related parameters of the refrigerator in a previous setting period, wherein the frequency-related parameters comprise the number of times of opening the door of the compartment, the ambient temperature, the set temperature of the compartment and the temperature of the compartment; calculate a first frequency coefficient according to the ambient temperature; wherein the first frequency coefficient is in positive correlation with the ambient temperature; calculate a second frequency coefficient according to the set temperature of the compartment; wherein the second frequency coefficient is in positive correlation with the set temperature of the compartment; calculate a third frequency coefficient according to the number of times of opening the door of the compartment, the set temperature of the compartment and the temperature of the compartment; comprehensively calculate a compressor frequency parameter according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; control the operation of the compressor in a current setting period according to the compressor frequency parameter.

[0078] For example, referring to Figure 4 , Figure 4 is a first work flow chart of the controller provided in the embodiment of the present application, and the controller is used to execute steps S11-S15.

[0079] S11, acquire frequency-related parameters of the refrigerator in a previous setting period, wherein the frequency-related parameters comprise the number of times of opening the door of the compartment, the ambient temperature, the set temperature of the compartment and the temperature of the compartment, and then enter step S12.

[0080] Specifically, a setting period is set in advance, for example, 5 minutes, at the end of the previous setting period and the beginning of the current setting, the data monitored by various detection devices (such as a door switch detection device, a compartment temperature detection device and an ambient temperature detection device) in the previous setting period is acquired to determine the number of times of opening the door of the compartment, the ambient temperature and the temperature of the compartment, and the set temperature of the compartment in the previous setting period. Wherein the controller can calculate the number of times of opening the door of the compartment according to the data of the door switch detection device. The relevant parameters monitored at the end of the previous setting period are directly used as the frequency-related parameters of the previous setting period. Further, since the real-time temperature of the environment can fluctuate slightly and the ambient temperature detection device can have false detection, the final ambient temperature of the setting period can be obtained by collecting the ambient temperature multiple times at the end of the setting period, removing the abnormal values and then performing average calculation. Similarly, the final temperature of the compartment of the setting period can be obtained by collecting the temperature of the compartment multiple times at the end of the setting period, removing the abnormal values and then performing average calculation.

[0081] It is worth noting that the specific data of the setting period can be set by the manufacturer according to the actual situation. In general, the setting period is less than one operation period of the compressor.

[0082] S12, calculate a first frequency coefficient according to the ambient temperature; wherein the first frequency coefficient is positively correlated with the ambient temperature, and then go to step S13.

[0083] Specifically, the ambient temperature has an impact on the change of the chamber temperature, the greater the ambient temperature, the faster the temperature in the chamber rises, and the temperature drop speed during the refrigeration of the refrigerator slows down accordingly. In order to reduce the impact of the ambient temperature on the refrigeration efficiency of the refrigerator, a first frequency coefficient can be calculated according to the ambient temperature to adjust the operating frequency of the compressor, wherein the higher the ambient temperature, the greater the first frequency coefficient, and the operating frequency of the compressor is adjusted accordingly. When the ambient temperature is low, the impact on the loss of cold energy in the chamber is smaller. Therefore, by determining a smaller first frequency coefficient according to the lower ambient temperature, the operating frequency of the compressor is reduced, and the energy consumption of the refrigerator is reduced.

[0084] S13, calculate a second frequency coefficient according to the chamber set temperature; wherein the second frequency coefficient is positively correlated with the chamber set temperature, and then go to step S14.

[0085] Specifically, the chamber set temperature can be set by the user, such as setting a gear knob on the refrigerator, and the user sets the chamber set temperature by adjusting the gear knob, or setting a display screen on the refrigerator, and the user sets the chamber set temperature by inputting information on the display screen. It should be noted that the setting method of the chamber set temperature can be set according to the actual application, which is not limited herein. The chamber set temperature has a great impact on the refrigeration demand. The smaller the chamber set temperature, the greater the refrigeration demand of the refrigerator. Therefore, when the chamber set temperature is small, the second frequency coefficient is appropriately increased to increase the operating frequency of the compressor and improve the refrigeration efficiency of the refrigerator. When the chamber set temperature is large, the second frequency coefficient is appropriately reduced to reduce the operating frequency of the compressor and reduce the energy consumption of the refrigerator.

[0086] S14, calculate a third frequency coefficient according to the number of times of opening the chamber, the chamber set temperature and the chamber temperature, and then go to step S15.

[0087] Specifically, during the opening of the refrigerator, the heat from the outside enters the chamber, and the cold energy in the chamber leaks out, causing the temperature in the chamber to rise. After the temperature in the chamber rises, if it is greatly different from the chamber set temperature, in order to achieve better low-temperature preservation effect, rapid refrigeration is needed to make the chamber temperature return to the vicinity of the chamber set temperature as soon as possible. Therefore, the third frequency coefficient is determined by considering the number of times of opening the chamber, the chamber set temperature and the chamber temperature, and then the operating frequency of the compressor is adjusted, which takes into account the rapid refrigeration and energy consumption reduction of the refrigerator.

[0088] S15, calculate a compressor frequency parameter according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; wherein the compressor frequency parameter is positively correlated with the first frequency coefficient, the second frequency coefficient and the third frequency coefficient respectively, and then enter step S16.

[0089] S16, control the compressor of the current setting period to operate according to the compressor frequency parameter.

[0090] It can be understood that the execution order of steps S12-S14 can be adjusted, and the above specific execution order is only for illustration, for example, step S13 can be executed first, then step S14, and finally step S12 is executed.

[0091] Compared with the prior art, by considering the ambient temperature, the number of times of opening the compartment door, the compartment set temperature and the compartment temperature of the last setting period, the first frequency coefficient, the second frequency coefficient and the third frequency coefficient are comprehensively calculated to calculate the compressor frequency parameter, and the operating frequency of the compressor of the current setting period is controlled, thereby improving the refrigeration efficiency of the refrigerator and reducing the energy consumption of the refrigerator.

[0092] In a preferred embodiment, the compartment includes a refrigeration compartment and a freezing compartment, and the compartment set temperature includes a refrigeration compartment set temperature and a freezing compartment set temperature; the second frequency coefficient is calculated according to the compartment set temperature, including: obtaining a refrigeration regular set temperature and a freezing regular set temperature; multiplying the difference between the refrigeration regular set temperature and the refrigeration compartment set temperature by a preset first heat load coefficient to obtain a refrigeration influence coefficient; multiplying the difference between the freezing regular set temperature and the freezing compartment set temperature by a preset second heat load coefficient to obtain a freezing influence coefficient; wherein the first heat load coefficient is less than the second heat load coefficient; and adding the refrigeration influence coefficient and the freezing influence coefficient to obtain the second frequency coefficient.

[0093] Specifically, the refrigeration compartment set temperature and the freezing compartment set temperature can be set by the user according to their own needs. Generally, for example, the refrigeration compartment set temperature is generally between 2-8 degrees Celsius, which is suitable for the preservation needs of most foods, including raw meat, fruits, vegetables, yogurt, etc. At this temperature, the bacteria reproduce relatively slowly, which can effectively prolong the shelf life of the food. The freezing temperature is usually set between minus 12 to 24 degrees Celsius. At this temperature, the water in the food will freeze quickly and form ice crystals, making it difficult for microorganisms to survive, and frozen food can be stored for a longer period of time to avoid food spoilage and rot. It should be noted that the value range of the refrigeration set temperature and the freezing set temperature is not limited to the above specific data, and the manufacturer can set the temperature range for selection according to the actual situation, which is not limited herein.

[0094] For example,Figure 5 , Figure 5 is a second working flow chart of the controller provided by the embodiment of the present application, the second frequency coefficient calculated according to the compartment setting temperature in step S13 comprises steps S131-S134, and the controller is further configured to execute steps S131-S134.

[0095] S131, obtain the refrigeration regular setting temperature and the freezing regular setting temperature. Then go to step S132.

[0096] Specifically, the refrigeration regular setting temperature and the freezing regular setting temperature are usually the temperature values initially set by the manufacturer, for example, the refrigeration regular setting temperature is 5 degrees Celsius, and the freezing regular setting temperature is -18 degrees Celsius. It should be noted that the refrigeration regular setting temperature and the freezing regular setting temperature are not limited to the above specific data, and can be adjusted according to the actual situation of the refrigerator.

[0097] S132, multiply the difference between the refrigeration regular setting temperature and the refrigeration compartment setting temperature by the preset first heat load coefficient to obtain a refrigeration influence coefficient. Then go to step S133.

[0098] S133, multiply the difference between the freezing regular setting temperature and the freezing compartment setting temperature by the preset second heat load coefficient to obtain a freezing influence coefficient; wherein the first heat load coefficient is less than the second heat load coefficient. Then go to step S134.

[0099] S134, add the refrigeration influence coefficient and the freezing influence coefficient to obtain the second frequency coefficient.

[0100] Specifically, if the refrigeration setting temperature set by the user is inconsistent with the refrigeration regular setting temperature, the refrigeration setting temperature set by the user needs to be compared with the refrigeration regular setting temperature, and the compressor speed is optimized according to the comparison result; if the freezing setting temperature set by the user is inconsistent with the freezing regular setting temperature, the freezing setting temperature set by the user needs to be compared with the freezing regular setting temperature, and the compressor speed is optimized according to the comparison result. For example, generally, the heat load proportion of the refrigeration compartment and the freezing compartment of the refrigerator is in the relationship of 2 and 4, therefore, assuming that the refrigeration regular setting temperature is 5 degrees Celsius, the freezing regular setting temperature is -18 degrees Celsius, the first heat load coefficient is 2, and the second heat load coefficient is 4. The specific calculation formula of the second frequency coefficient is: N2=(5-Sr)*2-(Sf+18)*4, wherein N2 represents the second frequency coefficient, Sr represents the refrigeration compartment setting temperature, and Sf represents the freezing compartment setting temperature.

[0101] It is worth mentioning that the specific data of the first thermal load coefficient and the second thermal load coefficient are not limited to 2 and 4, and are set according to actual conditions. The first thermal load coefficient and the second thermal load coefficient can be set according to the proportion of the thermal load of the refrigeration chamber and the freezing chamber.

[0102] In a preferred embodiment, the compartments include a refrigeration chamber and a freezing chamber, the compartment temperature detection device includes a refrigeration temperature detection device and a freezing temperature detection device; the refrigeration temperature detection device is arranged in the refrigeration chamber and is used for detecting the refrigeration chamber temperature; the freezing temperature detection device is arranged in the freezing chamber and is used for detecting the freezing chamber temperature; the compartment set temperature includes a refrigeration chamber set temperature and a freezing chamber set temperature, the compartment door opening times include refrigeration chamber door opening times and freezing chamber door opening times, and the third frequency coefficient is greater than or equal to 0; the third frequency coefficient is calculated according to the compartment door opening times, the compartment set temperature and the compartment temperature, including: when the refrigeration chamber door opening times and the freezing chamber door opening times are zero, the third frequency coefficient is zero; when the first compartment door opening times are not zero and the second compartment door opening times are zero, the third frequency coefficient is calculated according to the first compartment set temperature and the first compartment temperature; wherein the first compartment is one of the refrigeration chamber and the freezing chamber, the second compartment is the other one of the refrigeration chamber and the freezing chamber, and the third frequency coefficient and the difference between the first compartment temperature and the first compartment set temperature are in a positive correlation; when the refrigeration chamber door opening times and the freezing chamber door opening times are not zero, the third frequency coefficient is calculated according to the freezing chamber set temperature, the freezing chamber temperature, the refrigeration chamber set temperature and the refrigeration chamber temperature, wherein the third frequency coefficient is in a positive correlation with the difference between the freezing chamber temperature and the freezing chamber set temperature and the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature, respectively.

[0103] Specifically, the refrigeration temperature detection device is arranged in the refrigeration chamber, and the refrigeration temperature detection device can be a temperature sensor whose probe is exposed to the storage space of the refrigeration chamber. The freezing temperature detection device can be a temperature sensor whose probe is exposed to the storage space of the freezing chamber. The specific types of the refrigeration temperature detection device and the freezing temperature detection device and the specific installation positions in the refrigeration chamber and the freezing chamber can be set according to actual needs, which are not limited herein.

[0104] For example, referring to Figure 6 , Figure 6 is a third working flowchart of the controller provided by the embodiment of the present application, and the third frequency coefficient calculated according to the compartment door opening times, the compartment set temperature and the compartment temperature in step S14 includes steps S141-S144. The controller is further used to execute steps S141-S148.

[0105] S141, acquire the number of times of opening the refrigeration chamber door and the number of times of opening the freezing chamber door, and then go to step S142

[0106] S142, determine whether the number of times of opening the refrigeration chamber door is zero, if yes, go to step S143; if no, go to step S146.

[0107] S143, determine whether the number of times of opening the freezing chamber door is zero, if yes, go to step S144; if no, go to step S145.

[0108] S144, determine the third frequency coefficient as zero. It can be understood that if none of the doors of the refrigerator is opened in the last setting period, there is no case that the opening of the refrigerator affects the temperature of the freezing chamber / refrigeration chamber, therefore, the third frequency coefficient is set as zero, and the third frequency coefficient does not adjust the running frequency of the compressor.

[0109] S145, calculate the third frequency coefficient according to the freezing chamber set temperature and the freezing chamber temperature; wherein the third frequency coefficient and the difference between the freezing chamber temperature and the freezing chamber set temperature are in a positive correlation. It can be understood that if the door of the refrigeration chamber of the refrigerator is opened in the last setting period, the temperature of the freezing chamber will be affected by the opening of the door, therefore, the third frequency coefficient is calculated according to the freezing chamber temperature and the freezing chamber set temperature in the last setting period, so as to adjust the running frequency of the compressor. The greater the difference between the freezing chamber temperature and the freezing chamber set temperature, the greater the running frequency of the compressor needs to be, so as to improve the refrigeration efficiency and make the freezing chamber temperature drop to the vicinity of the freezing chamber set temperature as soon as possible. Similarly, the smaller the difference between the freezing chamber temperature and the freezing chamber set temperature, the smaller the refrigeration demand of the freezing chamber, therefore, the running frequency of the compressor does not need to be too large, and the energy consumption of the refrigerator is saved.

[0110] S146, determine whether the number of times of opening the freezing chamber door is zero, if yes, go to step S147; if no, go to step S148.

[0111] S147、calculate a third frequency coefficient according to the refrigeration chamber set temperature and the refrigeration chamber temperature; wherein the third frequency coefficient is positively correlated with the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature. It can be understood that if the door of the refrigeration chamber of the refrigerator is opened in the last setting period, the temperature of the refrigeration chamber will be affected by the opening of the door, therefore, the third frequency coefficient is calculated according to the refrigeration chamber temperature and the refrigeration chamber set temperature to adjust the running frequency of the compressor. The greater the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature, the greater the running frequency of the compressor needs to be increased to improve the refrigeration efficiency, so that the temperature of the refrigeration chamber can be quickly reduced to the vicinity of the refrigeration chamber set temperature, and vice versa, the smaller the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature, the smaller the refrigeration demand of the refrigeration chamber, therefore, the running frequency of the compressor does not need to be too large, saving the energy consumption of the refrigerator.

[0112] S148、calculate a third frequency coefficient according to the refrigeration chamber set temperature and the refrigeration chamber temperature; wherein the third frequency coefficient is positively correlated with the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature. It can be understood that if the door of the refrigeration chamber of the refrigerator is opened in the last setting period, the temperature of the refrigeration chamber will be affected by the opening of the door, therefore, the third frequency coefficient is calculated according to the refrigeration chamber temperature and the refrigeration chamber set temperature to adjust the running frequency of the compressor. The greater the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature, the greater the running frequency of the compressor needs to be increased to improve the refrigeration efficiency, so that the temperature of the refrigeration chamber can be quickly reduced to the vicinity of the refrigeration chamber set temperature, and vice versa, the smaller the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature, the smaller the refrigeration demand of the refrigeration chamber, therefore, the running frequency of the compressor does not need to be too large, saving the energy consumption of the refrigerator.

[0113] In a preferred embodiment, when the first chamber door opening times is not zero and the second chamber door opening times is zero, the third frequency coefficient is calculated according to the first chamber set temperature and the first chamber temperature, including: when the first chamber door opening times is not zero and the second chamber door opening times is zero, if the difference between the first chamber temperature and the first chamber set temperature is less than or equal to the preset difference value of the first chamber, the third frequency coefficient is zero; when the first chamber door opening times is not zero and the second chamber door opening times is zero, if the difference between the first chamber temperature and the first chamber set temperature is greater than the preset difference value of the first chamber, the difference between the first chamber temperature and the first chamber set temperature is subtracted from the preset difference value of the first chamber and multiplied by the compensation coefficient of the first chamber to obtain the third frequency coefficient; wherein the compensation coefficient of the refrigeration chamber is less than the compensation coefficient of the freezer.

[0114] For example, referring to Figure 7 , Figure 7 is a fourth working flowchart of the controller provided by the embodiment of the present application, and the controller is further used to execute steps S1451-S1453.

[0115] S1451, when the number of times of opening the freezing chamber is not zero and the number of times of opening the refrigerating chamber is zero, judging whether the difference between the freezing chamber temperature and the freezing chamber set temperature is less than or equal to the preset difference value of the freezing chamber, if yes, entering step S1452, if no, entering step S1453.

[0116] S1452, determining that the third frequency coefficient is zero.

[0117] S1453, multiplying the difference between the freezing chamber temperature and the freezing chamber set temperature minus the preset difference value of the freezing chamber by the compensation coefficient of the freezing chamber to obtain the third frequency coefficient. Assuming that the preset difference value of the freezing chamber is 2 and the compensation coefficient of the freezing chamber is 20, the calculation formula of the third frequency coefficient when the number of times of opening the freezing chamber is not zero and the number of times of opening the refrigerating chamber is zero is: when Tf-Sf-2≤0, N3=0; when Tf-Sf-2>0, N3=(Tf-Sf-2)*20; wherein Tf represents the freezing chamber temperature and Sf represents the freezing chamber set temperature.

[0118] For example, referring to Figure 8 , Figure 8 is a fifth working flowchart of a controller provided by the embodiment of the application, and the controller is further used for executing steps S1471-S1473.

[0119] S1471, when the number of times of opening the refrigerating chamber is not zero and the number of times of opening the freezing chamber is zero, judging whether the difference between the refrigerating chamber temperature and the refrigerating chamber set temperature is less than or equal to the preset difference value of the refrigerating chamber, if yes, entering step S1472, if no, entering step S1473.

[0120] S1472, determining that the third frequency coefficient is zero.

[0121] S1473, multiplying the difference between the refrigerating chamber temperature and the refrigerating chamber set temperature minus the preset difference value of the refrigerating chamber by the compensation coefficient of the refrigerating chamber to obtain the third frequency coefficient. Assuming that the preset difference value of the refrigerating chamber is 3 and the compensation coefficient of the refrigerating chamber is 10, the calculation formula of the third frequency coefficient when the number of times of opening the refrigerating chamber is not zero and the number of times of opening the freezing chamber is zero is: when Tr-Sr-3≤0, N3=0; when Tr-Sr-3>0, N3=(Tr-Sr-2)*10; wherein Tr represents the refrigerating chamber temperature and Sr represents the refrigerating chamber set temperature.

[0122] It is worth mentioning that, because the cold quantity required by the freezing chamber accounts for a larger proportion than the refrigeration chamber, the compressor speed required for compensation is also large, therefore, the compensation coefficient of the refrigeration chamber is smaller than the compensation coefficient of the freezing chamber. Generally, the items placed in the freezing chamber are generally large in heat capacity, such as meat, and the temperature sensor rises slower than the refrigeration chamber, so when the freezing sensor temperature minus the freezing set temperature minus 2 is greater than 0, it means that the freezing has lost a lot of cold quantity, and the speed needs to be quickly increased to refrigerate, therefore, the preset difference of the refrigeration chamber is greater than the preset difference of the freezing chamber. The specific data of the compensation coefficient and the preset difference can be set according to the actual situation, and is not limited to the specific values described above.

[0123] In a preferred embodiment, see for example Figure 9 , Figure 9 is a sixth working flowchart of the controller provided by the embodiment of the application, and the controller is further used for executing steps S1481-S1483, and the third frequency coefficient is calculated according to the freezing chamber set temperature, the freezing chamber temperature, the refrigeration chamber set temperature and the refrigeration chamber temperature when the refrigeration chamber door opening times and the freezing chamber door opening times are both not zero, including steps S1481-S1483:

[0124] S1481, when the refrigeration chamber door opening times and the freezing chamber door opening times are both not zero, if the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature is less than or equal to the preset difference of the refrigeration chamber and the difference between the freezing chamber temperature and the freezing chamber set temperature is less than or equal to the preset difference of the freezing chamber, the third frequency coefficient is zero.

[0125] Specifically, even if the refrigeration chamber door opening times and the freezing chamber door opening times are both not zero, if the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature is not greater than the preset difference of the refrigeration chamber, it means that the refrigeration chamber temperature has not been greatly affected by the refrigeration chamber door opening, and the difference between the freezing chamber temperature and the freezing chamber set temperature is not greater than the preset difference of the freezing chamber, which means that the freezing chamber temperature has not been greatly affected by the freezing chamber door opening, therefore, the refrigeration demand of the refrigerator is small, and the third frequency coefficient can be set to zero, so that the running frequency of the compressor is not increased, and the energy consumption of the refrigerator is reduced.

[0126] S1482、when the number of times of opening the first compartment and the number of times of opening the second compartment are both not zero, if the difference between the first compartment temperature and the first compartment set temperature is greater than the preset difference value of the first compartment and the difference between the second compartment temperature and the second compartment set temperature is less than or equal to the preset difference value of the second compartment, the difference between the first compartment temperature and the first compartment set temperature is multiplied by the compensation coefficient of the first compartment after the preset difference value of the first compartment is subtracted, to obtain the first compartment frequency coefficient as the third frequency coefficient; wherein the compensation coefficient of the refrigeration compartment is less than the compensation coefficient of the freezer compartment, and the first compartment frequency coefficient is the refrigeration compartment frequency coefficient or the freezer compartment frequency coefficient.

[0127] Specifically, if the difference between the first compartment temperature and the first compartment set temperature is greater than the preset difference value of the first compartment, it indicates that the first compartment temperature is greatly affected by the opening of the first compartment, and the difference between the second compartment temperature and the second compartment set temperature is not greater than the preset difference value of the first compartment, which indicates that the second compartment temperature is not greatly affected by the opening of the second compartment. Therefore, in order to improve the refrigeration efficiency of the first compartment, the third frequency coefficient needs to be calculated according to the difference between the first compartment temperature and the first compartment set temperature, so as to increase the operating frequency of the compressor. For example, assuming that the preset difference value of the freezer compartment is 2, the compensation coefficient of the freezer compartment is 20, the preset difference value of the refrigeration compartment is 3, and the compensation coefficient of the refrigeration compartment is 10, then when the first compartment is the refrigeration compartment and the second compartment is the freezer compartment, if Tr-Sr-3>0 and Tf-Sf-2≤0, N3=(Tr-Sr-3)*10, wherein Tr represents the refrigeration compartment temperature, Sr represents the refrigeration compartment set temperature, and N3 represents the third frequency coefficient. Or, when the second compartment is the refrigeration compartment and the first compartment is the freezer compartment, if Tf-Sf-2>0 and Tr-Sr-3≤0, N3=(Tf-Sf-2)*20, wherein Tf represents the freezer compartment temperature, Sf represents the freezer compartment set temperature, and N3 represents the third frequency coefficient.

[0128] S1483、when the number of times of opening the first compartment and the number of times of opening the second compartment are both not zero, if the difference between the first compartment temperature and the first compartment set temperature is greater than the preset difference value of the first compartment and the difference between the second compartment temperature and the second compartment set temperature is less than or equal to the preset difference value of the second compartment, the difference between the first compartment temperature and the first compartment set temperature is multiplied by the compensation coefficient of the first compartment after the preset difference value of the first compartment is subtracted, to obtain the first compartment frequency coefficient as the third frequency coefficient; wherein the compensation coefficient of the refrigeration compartment is less than the compensation coefficient of the freezer compartment, and the first compartment frequency coefficient is the refrigeration compartment frequency coefficient or the freezer compartment frequency coefficient.

[0129] Specifically, if the difference between the temperature of the refrigeration chamber and the set temperature of the refrigeration chamber is greater than the preset difference value of the refrigeration chamber, and the difference between the temperature of the freezing chamber and the set temperature of the freezing chamber is not greater than the preset difference value of the freezing chamber, it indicates that the temperatures of the refrigeration chamber and the freezing chamber are both affected by the opening of the doors of the refrigeration chamber and the freezing chamber. Therefore, in order to improve the refrigeration efficiency of the refrigerator, the third frequency coefficient needs to be calculated according to the difference between the temperature of the freezing chamber and the set temperature of the freezing chamber, and the difference between the temperature of the refrigeration chamber and the set temperature of the refrigeration chamber, so as to increase the operating frequency of the compressor. For example, assuming that the preset difference value of the freezing chamber is 2, the compensation coefficient of the freezing chamber is 20, the preset difference value of the refrigeration chamber is 3, and the compensation coefficient of the refrigeration chamber is 10, when Tr-Sr-3>0 and Tf-Sf-2>0, N3=(Tr-Sr-3)*10+(Tf-Sf-2)*20; wherein Tr represents the temperature of the refrigeration chamber, Sr represents the set temperature of the refrigeration chamber, N3 represents the third frequency coefficient, Tf represents the temperature of the freezing chamber, Sf represents the set temperature of the freezing chamber, and N3 represents the third frequency coefficient.

[0130] It is worth noting that the preset difference value of the refrigeration chamber is greater than the preset difference value of the freezing chamber.

[0131] In order to make the specific calculation method of the third frequency coefficient more clear, the specific calculation method is divided into four different calculation methods as follows:

[0132] 1. The third frequency coefficient is zero if any of the following conditions is met.

[0133] (1) The number of times of opening the door of the refrigeration chamber and the number of times of opening the door of the freezing chamber are zero; (2) the number of times of opening the door of the freezing chamber is zero and the difference between the temperature of the refrigeration chamber and the set temperature of the refrigeration chamber is less than or equal to the preset difference value of the refrigeration chamber; (3) the number of times of opening the door of the refrigeration chamber is zero and the difference between the temperature of the freezing chamber and the set temperature of the freezing chamber is less than or equal to the preset difference value of the freezing chamber; (4) the difference between the temperature of the freezing chamber and the set temperature of the freezing chamber is less than or equal to the preset difference value of the freezing chamber and the difference between the temperature of the refrigeration chamber and the set temperature of the refrigeration chamber is less than or equal to the preset difference value of the refrigeration chamber.

[0134] 2. The third frequency coefficient is equal to the refrigeration frequency coefficient if any of the following conditions is met. Refrigeration frequency coefficient=(temperature of refrigeration chamber-set temperature of refrigeration chamber-pre-set difference value of refrigeration chamber)*compensation coefficient of refrigeration chamber.

[0135] (1) the number of times of opening the door of the refrigeration chamber is not zero, the number of times of opening the door of the freezing chamber is zero, and the difference between the temperature of the refrigeration chamber and the set temperature of the refrigeration chamber is greater than the preset difference value of the refrigeration chamber; (2) the number of times of opening the door of the refrigeration chamber and the number of times of opening the door of the freezing chamber are not zero, the difference between the temperature of the refrigeration chamber and the set temperature of the refrigeration chamber is greater than the preset difference value of the refrigeration chamber, and the difference between the temperature of the freezing chamber and the set temperature of the freezing chamber is less than or equal to the preset difference value of the freezing chamber.

[0136] 3. Any one of the following conditions is met, the third frequency coefficient is equal to the freezing frequency coefficient. The freezing frequency coefficient = (freezing chamber temperature - freezing chamber set temperature - preset difference of freezing chamber) * compensation coefficient of freezing chamber.

[0137] (1) When the number of times of opening the refrigeration chamber door is zero, the number of times of opening the freezing chamber door is not zero, and the difference between the freezing chamber temperature and the freezing chamber set temperature is greater than the preset difference of the freezing chamber; (2) When the number of times of opening the refrigeration chamber door and the number of times of opening the freezing chamber door are not zero, the difference between the freezing chamber temperature and the freezing chamber set temperature is greater than the preset difference of the freezing chamber, and the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature is less than or equal to the preset difference of the refrigeration chamber.

[0138] 4. When the number of times of opening the refrigeration chamber door and the number of times of opening the freezing chamber door are not zero, the difference between the freezing chamber temperature and the freezing chamber set temperature is greater than the preset difference of the freezing chamber, and the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature is greater than the preset difference of the refrigeration chamber, the third frequency coefficient is equal to the sum of the freezing frequency coefficient and the refrigeration frequency coefficient; the freezing frequency coefficient = (freezing chamber temperature - freezing chamber set temperature - preset difference of freezing chamber) * compensation coefficient of freezing chamber; the refrigeration frequency coefficient = (refrigeration chamber temperature - refrigeration chamber set temperature - preset difference of refrigeration chamber) * compensation coefficient of refrigeration chamber.

[0139] In a preferred embodiment, referring to Figure 10 , Figure 10 is a seventh working flowchart of the controller provided by the embodiment of the application, and the first frequency coefficient calculated according to the ambient temperature in step S12 comprises steps S121-S122:

[0140] S121, when the ambient temperature is less than or equal to the preset ambient temperature threshold, the first frequency coefficient is a set ambient temperature correction coefficient;

[0141] S122, when the ambient temperature is greater than the preset ambient temperature threshold, the difference between the ambient temperature and the preset ambient temperature threshold is multiplied by a set ambient temperature coefficient, and then the set ambient temperature correction coefficient is added to obtain the first frequency coefficient.

[0142] It is worth noting that the preset ambient temperature threshold is the ambient temperature under ideal conditions, at which the compressor runs at the lower limit of the operating frequency to meet the refrigeration requirements of the refrigerator. Further, the set ambient temperature correction coefficient is the lower limit of the operating frequency of the compressor. For example, assuming that the preset ambient temperature threshold is 12 degrees Celsius, the set ambient temperature correction coefficient is 40, and the set ambient temperature coefficient is 3, then when Te≤12℃, N1=40, and when Te>12℃, N1=(Te-12)*3+40, where Te represents the ambient temperature and N1 represents the first frequency coefficient.

[0143] It is worth mentioning that the specific values of the ring temperature correction coefficient, the ring temperature coefficient and the preset ring temperature threshold are not limited to the above specific values, and can be set according to actual conditions.

[0144] In a preferred embodiment, referring to Figure 11 , Figure 11 is the eighth working flowchart of the controller provided by the embodiment of the application, and the controller is further used for executing the following steps S17-S19.

[0145] S17, the continuous running duration of the compressor is acquired, and then step S18 is entered.

[0146] S18, it is judged whether the continuous running duration of the compressor is greater than a running duration threshold, if yes, step S19 is entered, and if no, other control logic is entered, such as steps S11-S16.

[0147] S19, the compressor is controlled to run according to the historical maximum running frequency in the current continuous running duration until the chamber temperature reaches a set shutdown temperature; wherein the continuous running duration includes at least one set period. It can be understood that when the running duration of the compressor is too long, it indicates that the refrigeration efficiency is not large enough, and therefore, the maximum compressor frequency parameter in the historical set period in the current refrigeration period is selected to control the compressor to run, so as to speed up the refrigeration efficiency.

[0148] In a preferred embodiment, referring to Figure 12 , Figure 12 is the ninth working flowchart of the controller provided by the embodiment of the application, and the controller is further used for executing the following steps S20-S24.

[0149] S20, the running state of the compressor is acquired, and then step S21 is entered.

[0150] S21, it is judged whether the running state of the compressor is a shutdown state, if yes, step S22 is entered, and if no, step S23 is entered.

[0151] S22, the compressor frequency parameter is calculated according to a set period.

[0152] S23, it is judged whether the compressor is just started, if yes, step S24 is entered, and if no, other control logic is entered, such as steps S11-S16.

[0153] S24, the maximum value is selected from all compressor frequency parameters calculated during the latest shutdown period, so as to control the running of the compressor in the first set period after starting.

[0154] For example, during the compressor shutdown period, the data of ambient temperature Te, refrigeration chamber temperature Tr, freezing chamber temperature Tf, refrigeration chamber set temperature Sr, freezing chamber set temperature Sf are detected once in a set period (such as 5 minutes). According to the detection data and the record of the number of times of opening the refrigeration chamber and the freezing chamber in the 5 minutes, the controller (mainboard) automatically generates a plurality of compressor frequency parameters of the set period according to the shutdown time. When the refrigerator has a refrigeration requirement and the compressor needs to be started, the compressor is started according to the maximum value of the plurality of compressor frequency parameters generated during the latest shutdown period. Then, during the compressor operation period, the data of ambient temperature Te, refrigeration chamber temperature Tr, freezing chamber temperature Tf, refrigeration chamber set temperature Sr, freezing chamber set temperature Sf are detected once in a set period (such as 5 minutes). According to the detection data and the record of the number of times of opening the refrigeration chamber and the freezing chamber in the 5 minutes, the mainboard automatically generates a compressor frequency parameter. The compressor frequency parameter of the previous set period is used to control the compressor operating frequency of the current set period, until the compressor reaches the shutdown requirement, or until the continuous operating time of the compressor is greater than the operating time threshold (such as 30 minutes), then the compressor operating frequency is operated according to the maximum frequency in the current operating process of the compressor. In this way, the compressor frequency is changed every 30 minutes until the refrigeration and freezing reach the compressor shutdown temperature. After the compressor is shut down, the mainboard automatically clears the compressor frequency parameter in the current operating process.

[0155] In a preferred embodiment, the compressor frequency parameter is calculated by synthesizing the first frequency coefficient, the second frequency coefficient and the third frequency coefficient, including: adding the first frequency coefficient, the second frequency coefficient and the third frequency coefficient and rounding to obtain the compressor frequency parameter.

[0156] Further, the compressor frequency parameter is the recommended compressor operating frequency. The three frequency coefficients are added and rounded by rounding off to obtain the compressor frequency parameter. Alternatively, the rounding method can also be rounding up or rounding down.

[0157] Further, the compressor frequency parameter is limited between the lower limit of operating frequency and the upper limit of operating frequency. Assuming that the lower limit of operating frequency is 40 Hz and the upper limit of operating frequency is 147 Hz, when the compressor frequency parameter Chz>147, Chz=147; when Chz<40, Chz=40.

[0158] It can be known that the refrigerator disclosed by the embodiment of the present application firstly acquires the frequency related parameters of the refrigerator in the last setting period, wherein the frequency related parameters include the chamber door opening times, the environment temperature, the chamber setting temperature and the chamber temperature; then, the first frequency coefficient is determined according to the environment temperature; wherein the first frequency coefficient is in positive correlation with the environment temperature; the second frequency coefficient is determined according to the chamber setting temperature; wherein the second frequency coefficient is in positive correlation with the chamber setting temperature; the third frequency coefficient is determined according to the chamber door opening times, the chamber setting temperature and the chamber temperature; then, the compressor frequency parameter is comprehensively calculated according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; finally, the compressor of the current setting period is controlled according to the compressor frequency parameter. It can be known that the embodiment of the present application adjusts the compressor frequency parameter according to the environment temperature, the chamber temperature, the setting temperature and the door opening times of the refrigerator to control the compressor of the refrigerator, and effectively realizes the purposes of fast refrigeration and energy consumption reduction of the refrigerator.

[0159] Referring to Figure 13 , Figure 13 is a flowchart of a refrigerator control method provided by the embodiment of the present application, the refrigerator control method provided by the embodiment of the present application is realized by the controller in the refrigerator, and comprises steps S1-S6.

[0160] S1, acquiring the frequency related parameters of the refrigerator in the last setting period, wherein the frequency related parameters include the chamber door opening times, the environment temperature, the chamber setting temperature and the chamber temperature;

[0161] S2, calculating the first frequency coefficient according to the environment temperature; wherein the first frequency coefficient is in positive correlation with the environment temperature;

[0162] S3, calculating the second frequency coefficient according to the chamber setting temperature; wherein the second frequency coefficient is in positive correlation with the chamber setting temperature;

[0163] S4, calculating the third frequency coefficient according to the chamber door opening times, the chamber setting temperature and the chamber temperature;

[0164] S5, comprehensively calculating the compressor frequency parameter according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; wherein the compressor frequency parameter is in positive correlation with the first frequency coefficient, the second frequency coefficient and the third frequency coefficient respectively;

[0165] S6, controlling the compressor of the refrigerator of the current setting period according to the compressor frequency parameter.

[0166] In an embodiment, the compartments of the refrigerator include a refrigeration compartment and a freezing compartment, and the compartment set temperatures include a refrigeration compartment set temperature and a freezing compartment set temperature;

[0167] The second frequency coefficient is calculated according to the compartment set temperatures, including:

[0168] The refrigeration regular set temperature and the freezing regular set temperature are obtained;

[0169] The difference between the refrigeration regular set temperature and the refrigeration compartment set temperature is multiplied by a preset first heat load coefficient to obtain a refrigeration influence coefficient;

[0170] The difference between the freezing regular set temperature and the freezing compartment set temperature is multiplied by a preset second heat load coefficient to obtain a freezing influence coefficient; wherein the first heat load coefficient is less than the second heat load coefficient;

[0171] The refrigeration influence coefficient and the freezing influence coefficient are added to obtain the second frequency coefficient.

[0172] In an embodiment, the compartments of the refrigerator include a refrigeration compartment and a freezing compartment, and the compartment temperature detection devices include a refrigeration temperature detection device and a freezing temperature detection device; the refrigeration temperature detection device is arranged in the refrigeration compartment to detect the refrigeration compartment temperature; the freezing temperature detection device is arranged in the freezing compartment to detect the freezing compartment temperature; the compartment set temperatures include a refrigeration compartment set temperature and a freezing compartment set temperature; the compartment door opening times include a refrigeration compartment door opening time and a freezing compartment door opening time; and the third frequency coefficient is greater than or equal to 0.

[0173] The third frequency coefficient is calculated according to the compartment door opening times, the compartment set temperatures and the compartment temperatures, including:

[0174] When the refrigeration compartment door opening time and the freezing compartment door opening time are zero, the third frequency coefficient is zero;

[0175] When the first compartment door opening time is not zero and the second compartment door opening time is zero, the third frequency coefficient is calculated according to the first compartment set temperature and the first compartment temperature; wherein the first compartment is one of the refrigeration compartment and the freezing compartment, the second compartment is the other one of the refrigeration compartment and the freezing compartment, and the third frequency coefficient is positively correlated with the difference between the first compartment temperature and the first compartment set temperature;

[0176] When the number of times the refrigerating chamber is opened and the number of times the freezing chamber is opened are both not zero, a third frequency coefficient is calculated according to the freezing chamber set temperature, the freezing chamber temperature, the refrigerating chamber set temperature and the refrigerating chamber temperature, wherein the third frequency coefficient is positively correlated with the difference between the freezing chamber temperature and the freezing chamber set temperature and the difference between the refrigerating chamber temperature and the refrigerating chamber set temperature respectively.

[0177] In an embodiment, the third frequency coefficient is calculated according to the first chamber set temperature and the first chamber temperature when the number of times the first chamber is opened is not zero and the number of times the second chamber is opened is zero, comprising:

[0178] When the number of times the first chamber is opened is not zero and the number of times the second chamber is opened is zero, if the difference between the first chamber temperature and the first chamber set temperature is less than or equal to the preset difference value of the first chamber, the third frequency coefficient is zero; wherein the preset difference value of the refrigerating chamber is greater than the preset difference value of the freezing chamber;

[0179] When the number of times the first chamber is opened is not zero and the number of times the second chamber is opened is zero, if the difference between the first chamber temperature and the first chamber set temperature is greater than the preset difference value of the first chamber, the difference between the first chamber temperature and the first chamber set temperature is subtracted by the preset difference value of the first chamber and multiplied by the compensation coefficient of the first chamber to obtain the third frequency coefficient; wherein the compensation coefficient of the refrigerating chamber is less than the compensation coefficient of the freezing chamber.

[0180] In an embodiment, the third frequency coefficient is calculated according to the freezing chamber set temperature, the freezing chamber temperature, the refrigerating chamber set temperature and the refrigerating chamber temperature when the number of times the refrigerating chamber is opened and the number of times the freezing chamber are opened are both not zero, comprising:

[0181] When the number of times the refrigerating chamber is opened and the number of times the freezing chamber are opened are both not zero:

[0182] If the difference between the refrigerating chamber temperature and the refrigerating chamber set temperature is less than or equal to the preset difference value of the refrigerating chamber and the difference between the freezing chamber temperature and the freezing chamber set temperature is less than or equal to the preset difference value of the freezing chamber, the third frequency coefficient is zero;

[0183] If the difference between the first chamber temperature and the first chamber set temperature is greater than the preset difference value of the first chamber and the difference between the second chamber temperature and the second chamber set temperature is less than or equal to the preset difference value of the second chamber, the difference between the first chamber temperature and the first chamber set temperature is multiplied by the preset difference value of the first chamber to obtain the first chamber frequency coefficient as the third frequency coefficient after being subtracted by the preset difference value of the first chamber; wherein the compensation coefficient of the refrigeration chamber is less than the compensation coefficient of the freezing chamber, the first chamber frequency coefficient is the refrigeration chamber frequency coefficient or the freezing chamber frequency coefficient, and the preset difference value of the refrigeration chamber is greater than the preset difference value of the freezing chamber.

[0184] When the refrigeration chamber door opening frequency and the freezing chamber door opening frequency are both not zero, if the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature is greater than the preset difference value of the refrigeration chamber and the difference between the freezing chamber temperature and the freezing chamber set temperature is greater than the preset difference value of the freezing chamber, the third frequency coefficient is obtained by adding the refrigeration frequency coefficient and the freezing frequency coefficient.

[0185] In an embodiment, the first frequency coefficient is calculated according to the ambient temperature, comprising:

[0186] When the ambient temperature is less than or equal to the preset ambient temperature threshold, the first frequency coefficient is a set ambient temperature correction coefficient;

[0187] When the ambient temperature is greater than the preset ambient temperature threshold, the difference between the ambient temperature and the preset ambient temperature threshold is multiplied by a set ambient temperature coefficient, and then the set ambient temperature correction coefficient is added to obtain the first frequency coefficient.

[0188] In an embodiment, the method further comprises:

[0189] When the continuous running time length of the compressor is greater than the running time length threshold, the compressor is controlled to run at the historical maximum running frequency in the current continuous running time length until the chamber temperature reaches the set shutdown temperature; wherein the continuous running time length comprises at least one set period.

[0190] In an embodiment, the method further comprises:

[0191] During the shutdown of the compressor, the compressor frequency parameter is calculated according to the set period;

[0192] When the compressor starts, the maximum value is selected from all the compressor frequency parameters calculated during the most recent shutdown to control the operation of the compressor in the first set period after starting.

[0193] In an implementation, the synthesizing the compressor frequency parameter according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient comprises: adding the first frequency coefficient, the second frequency coefficient and the third frequency coefficient and taking an integer to obtain the compressor frequency parameter.

[0194] It is worth mentioning that the specific steps of the method described in the above embodiments can refer to the working process of the refrigerator in the above embodiments, which will not be repeated here.

[0195] Compared with the prior art, the refrigerator control method disclosed in the embodiments of the present application first acquires the frequency-related parameters of the refrigerator in the last setting period, wherein the frequency-related parameters include the number of compartment door openings, the ambient temperature, the compartment set temperature and the compartment temperature; then, a first frequency coefficient is determined according to the ambient temperature; wherein the first frequency coefficient is positively correlated with the ambient temperature; a second frequency coefficient is determined according to the compartment set temperature; wherein the second frequency coefficient is positively correlated with the compartment set temperature; a third frequency coefficient is determined according to the number of compartment door openings, the compartment set temperature and the compartment temperature; then, a compressor frequency parameter is synthesized according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; finally, the compressor in the current setting period is controlled to operate according to the compressor frequency parameter. It can be seen that the compressor frequency parameter is adjusted according to the ambient temperature, the compartment temperature, the set temperature and the number of door openings of the refrigerator to control the compressor of the refrigerator, which effectively realizes the purposes of fast refrigeration and energy consumption reduction of the refrigerator.

[0196] The above is the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements are also considered to be within the scope of protection of the present application.

Claims

1. A refrigerator characterized by comprising: The refrigerator comprises: a cabinet, which is internally provided with a compartment and a refrigeration system; the compartment is used for storing articles, and the refrigeration system is used for providing power for a refrigeration cycle of the refrigerator, and comprises a compressor, an evaporator, a pressure reducer and a condenser; a door body, which is arranged at an opening of the compartment; an ambient temperature detection device, which is arranged on an outer shell of the refrigerator and is used for detecting an ambient temperature; a compartment temperature detection device, which is arranged in the compartment and is used for detecting a compartment temperature; a door switch detection device, which is used for detecting an opening and closing state of the door body; a controller, which is used for: obtaining frequency-related parameters of the refrigerator in a previous setting period, wherein the frequency-related parameters comprise a number of times of opening the compartment, the ambient temperature, a set temperature of the compartment and the compartment temperature; calculating a first frequency coefficient according to the ambient temperature; wherein the first frequency coefficient is in a positive correlation with the ambient temperature; calculating a second frequency coefficient according to the set temperature of the compartment; wherein the second frequency coefficient is in a positive correlation with the set temperature of the compartment; calculating a third frequency coefficient according to the number of times of opening the compartment, the set temperature of the compartment and the compartment temperature; comprehensively calculating a compressor frequency parameter according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; wherein the compressor frequency parameter is in a positive correlation with the first frequency coefficient, the second frequency coefficient and the third frequency coefficient, respectively; controlling a compressor operation in a current setting period according to the compressor frequency parameter.

2. The refrigerator according to claim 1, wherein The compartment comprises a refrigerating chamber and a freezing chamber, and the set temperature of the compartment comprises a set temperature of the refrigerating chamber and a set temperature of the freezing chamber; The second frequency coefficient is calculated according to the set temperature of the compartment, and comprises: obtaining a refrigerating regular set temperature and a freezing regular set temperature; multiplying a difference between the refrigerating regular set temperature and the set temperature of the refrigerating chamber by a preset first heat load coefficient to obtain a refrigerating influence coefficient; multiplying a difference between the freezing regular set temperature and the set temperature of the freezing chamber by a preset second heat load coefficient to obtain a freezing influence coefficient; wherein the first heat load coefficient is smaller than the second heat load coefficient; adding the refrigerating influence coefficient and the freezing influence coefficient to obtain the second frequency coefficient.

3. The refrigerator according to claim 1, wherein The compartment comprises a refrigerating chamber and a freezing chamber, and the compartment temperature detection device comprises a refrigerating temperature detection device and a freezing temperature detection device; the refrigerating temperature detection device is arranged in the refrigerating chamber and is used for detecting a refrigerating chamber temperature; the freezing temperature detection device is arranged in the freezing chamber and is used for detecting a freezing chamber temperature; the set temperature of the compartment comprises a set temperature of the refrigerating chamber and a set temperature of the freezing chamber, the number of times of opening the compartment comprises a number of times of opening the refrigerating chamber and a number of times of opening the freezing chamber, and the third frequency coefficient is greater than or equal to 0; The third frequency coefficient is calculated according to the number of times of opening the compartment, the set temperature of the compartment and the compartment temperature, and comprises: when the number of times of opening the refrigerating chamber and the number of times of opening the freezing chamber are zero, the third frequency coefficient is zero. When the first chamber door opening times is not zero and the second chamber door opening times is zero, a third frequency coefficient is calculated according to the first chamber set temperature and the first chamber temperature; wherein the first chamber is one of the refrigeration chamber and the freezing chamber, the second chamber is the other one of the refrigeration chamber and the freezing chamber, the third frequency coefficient and the difference between the first chamber temperature and the first chamber set temperature are in a positive correlation; When the refrigeration chamber door opening times and the freezing chamber door opening times are both not zero, a third frequency coefficient is calculated according to the freezing chamber set temperature, the freezing chamber temperature, the refrigeration chamber set temperature and the refrigeration chamber temperature, wherein the third frequency coefficient and the difference between the freezing chamber temperature and the freezing chamber set temperature, the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature are in a positive correlation.

4. The refrigerator according to claim 3, wherein The third frequency coefficient is calculated according to the first chamber set temperature and the first chamber temperature when the first chamber door opening times is not zero and the second chamber door opening times is zero, comprising: When the first chamber door opening times is not zero and the second chamber door opening times is zero, if the difference between the first chamber temperature and the first chamber set temperature is less than or equal to the preset difference value of the first chamber, the third frequency coefficient is zero; wherein the preset difference value of the refrigeration chamber is greater than the preset difference value of the freezing chamber; When the first chamber door opening times is not zero and the second chamber door opening times is zero, if the difference between the first chamber temperature and the first chamber set temperature is greater than the preset difference value of the first chamber, the difference between the first chamber temperature and the first chamber set temperature is subtracted by the preset difference value of the first chamber and multiplied by the compensation coefficient of the first chamber to obtain the third frequency coefficient; wherein the compensation coefficient of the refrigeration chamber is less than the compensation coefficient of the freezing chamber.

5. The refrigerator according to claim 3, wherein The third frequency coefficient is calculated according to the freezing chamber set temperature, the freezing chamber temperature, the refrigeration chamber set temperature and the refrigeration chamber temperature when the refrigeration chamber door opening times and the freezing chamber door opening times are both not zero, comprising: When the refrigeration chamber door opening times and the freezing chamber door opening times are both not zero: If the difference between the refrigeration chamber temperature and the refrigeration chamber set temperature is less than or equal to the preset difference value of the refrigeration chamber and the difference between the freezing chamber temperature and the freezing chamber set temperature is less than or equal to the preset difference value of the freezing chamber, the third frequency coefficient is zero; If the difference between the first chamber temperature and the first chamber set temperature is greater than the preset difference value of the first chamber and the difference between the second chamber temperature and the second chamber set temperature is less than or equal to the preset difference value of the second chamber, the difference between the first chamber temperature and the first chamber set temperature is subtracted by the preset difference value of the first chamber and multiplied by the compensation coefficient of the first chamber to obtain the first chamber frequency coefficient, which is used as the third frequency coefficient; wherein the compensation coefficient of the refrigeration chamber is less than the compensation coefficient of the freezing chamber, the first chamber frequency coefficient is the refrigeration chamber frequency coefficient or the freezing chamber frequency coefficient, and the preset difference value of the refrigeration chamber is greater than the preset difference value of the freezing chamber; When the number of times of opening the refrigerating chamber and the number of times of opening the freezing chamber are both not zero, if the difference between the temperature of the refrigerating chamber and the set temperature of the refrigerating chamber is greater than the preset difference of the refrigerating chamber and the difference between the temperature of the freezing chamber and the set temperature of the freezing chamber is greater than the preset difference of the freezing chamber, the third frequency coefficient is obtained by adding the refrigerating frequency coefficient and the freezing frequency coefficient.

6. The refrigerator according to claim 1, wherein The first frequency coefficient is calculated according to the ambient temperature, and the first frequency coefficient comprises: When the ambient temperature is less than or equal to a preset ambient temperature threshold, the first frequency coefficient is a set ambient temperature correction coefficient; When the ambient temperature is greater than the preset ambient temperature threshold, the difference between the ambient temperature and the preset ambient temperature threshold is multiplied by a set ambient temperature coefficient, and then the set ambient temperature correction coefficient is added to obtain the first frequency coefficient.

7. The refrigerator according to claim 1, wherein The controller is further configured to: When the continuous running time of the compressor is greater than a running time threshold, the compressor is controlled to run at the historical maximum running frequency in the current continuous running time until the temperature of the intermediate chamber reaches a set shutdown temperature; wherein the continuous running time comprises at least one set period.

8. The refrigerator according to claim 1, wherein The controller is further configured to: During the shutdown of the compressor, the compressor frequency parameter is calculated according to the set period; When the compressor is started, the maximum value is selected from all compressor frequency parameters calculated during the most recent shutdown period to control the operation of the compressor in the first set period after starting.

9. The refrigerator according to claim 1, wherein The compressor frequency parameter is calculated according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient, and the calculation comprises: adding the first frequency coefficient, the second frequency coefficient and the third frequency coefficient and taking the integer part to obtain the compressor frequency parameter. 10.A refrigerator control method, characterized by, It comprises: Obtaining the frequency related parameters of the refrigerator in the last set period, wherein the frequency related parameters comprise the number of times of opening the intermediate chamber, the ambient temperature, the set temperature of the intermediate chamber and the temperature of the intermediate chamber; A first frequency coefficient is calculated according to the ambient temperature; wherein the first frequency coefficient is positively correlated with the ambient temperature; A second frequency coefficient is calculated according to the set temperature of the intermediate chamber; wherein the second frequency coefficient is positively correlated with the set temperature of the intermediate chamber; A third frequency coefficient is calculated according to the number of times of opening the intermediate chamber, the set temperature of the intermediate chamber and the temperature of the intermediate chamber; A compressor frequency parameter is calculated according to the first frequency coefficient, the second frequency coefficient and the third frequency coefficient; wherein the compressor frequency parameter is positively correlated with the first frequency coefficient, the second frequency coefficient and the third frequency coefficient respectively; The compressor of the refrigerator in the current set period is controlled to run according to the compressor frequency parameter.

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