Energy-saving refrigerator control method with multiple temperature zones and refrigerator

Abstract

The application provides an energy-saving refrigerator control method with multiple temperature zones and a refrigerator. The method comprises the following steps: determining whether the freezing chamber set gear temperature value is not less than -5 DEG C; if yes, determining whether the freezing chamber real-time temperature value is less than the first freezing chamber shutdown point temperature setting threshold; if yes, controlling the compressor to stop running, the refrigeration air door to open, and the refrigeration fan to start running; until the refrigerated chamber real-time temperature value is greater than the refrigerated chamber shutdown point temperature value and the freezing chamber real-time temperature value is not less than the freezing chamber startup point temperature value, the compressor is controlled to start running, the refrigeration air door is controlled to open, and the refrigeration fan is controlled to start running; until the refrigerated chamber real-time temperature value is less than the refrigerated chamber shutdown point temperature value and the freezing chamber real-time temperature value is less than the freezing chamber shutdown point temperature value, the compressor is controlled to stop running, the refrigeration air door is controlled to close, and the refrigeration fan is controlled to stop running, so as to solve the problem that the current refrigerator with multiple temperature zones needs to additionally add a variable temperature room, which leads to the increase of the manufacturing cost of the refrigerator and the decrease of the energy-saving performance.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, and in particular to an energy-saving refrigerator control method with multiple temperature zones and a refrigerator. Background Technology

[0002] As living standards improve, multiple use modes for refrigerator compartments have become fashionable. Currently, common products are mainly two-door, French door, French door, and side-by-side refrigerators, with the most common standard configuration being a refrigerator compartment and a freezer compartment.

[0003] In order to enable refrigerators to achieve variable temperature operation, a third compartment is currently added to the refrigerator, which has a refrigeration compartment and a freezer compartment. This compartment can be adjusted between the freezer and refrigeration temperature zones. This type of refrigerator can solve the problem of switching between multiple temperature zones. However, the variable temperature compartment takes up space and increases manufacturing costs, which is not conducive to user experience and manufacturing process.

[0004] In current refrigerators, when the bottom compartment is used as a freezer, the high ambient temperature or frequent use of the refrigerator compartment leads to a greater demand for refrigeration. Consequently, the freezer's passive cooling temperature is significantly lower than the set temperature, reducing the refrigerator's energy efficiency. Furthermore, in this situation, the already low freezer temperature necessitates further lowering the evaporation temperature to meet the refrigeration demands, further diminishing the refrigerator's energy efficiency from a thermodynamic cycle perspective. Summary of the Invention

[0005] This application provides a method for controlling an energy-saving refrigerator with multiple temperature zones and a refrigerator in general, to solve the technical problem that current refrigerators with multiple temperature zones require the addition of an extra variable temperature compartment, which increases the manufacturing cost of the refrigerator and reduces its energy-saving performance.

[0006] The first aspect of this application provides a method for controlling an energy-saving refrigerator with multiple temperature zones, including:

[0007] The refrigerator obtains real-time temperature parameters and refrigerator setting parameters; the real-time temperature parameters include: real-time temperature value of the refrigerator compartment, real-time temperature value of the freezer compartment, and set temperature value of the freezer compartment; the refrigerator setting parameters include: refrigerator compartment start-up temperature value, refrigerator compartment stop-up temperature value, freezer compartment start-up temperature value, and freezer compartment stop-up temperature value.

[0008] Determine whether the set temperature value of the freezer compartment is not less than -5℃. If so, based on the real-time temperature value of the freezer compartment and the freezer compartment shutdown point temperature value, determine whether the real-time temperature value of the freezer compartment is less than the first freezer compartment shutdown point temperature setting threshold. If so, control the compressor to stop running, open the refrigerator air damper, and start the refrigeration fan. The first freezer compartment shutdown point temperature setting threshold is:

[0009] T R1 =T D关机点 -a;

[0010] In the formula, T D关机点 is the temperature value at which the freezer compartment is turned off; 'a' is a manually set parameter with a value range of 2 ≤ a ≤ 5.

[0011] The compressor is controlled to start running, the refrigerator damper is opened, and the refrigeration fan is started running until the real-time temperature value of the refrigerator compartment is greater than the refrigerator compartment shutdown temperature value and the real-time temperature value of the freezer compartment is not less than the freezer compartment startup temperature value.

[0012] The compressor stops running, the refrigerator damper closes, and the refrigeration fan stops running when the real-time temperature of the refrigerator compartment is lower than the refrigerator compartment shutdown temperature and the real-time temperature of the freezer compartment is lower than the freezer compartment shutdown temperature.

[0013] In some embodiments, determining whether the set temperature value of the freezer compartment is not less than -5°C, and if so, then determining whether the real-time temperature value of the freezer compartment is less than the first freezer compartment shutdown temperature setting threshold based on the real-time temperature value of the freezer compartment and the freezer compartment shutdown point temperature value includes:

[0014] Determine whether the set temperature value of the freezer compartment is not less than -5℃. If so, determine whether the real-time temperature value of the refrigerator compartment is greater than the start-up temperature value of the refrigerator compartment.

[0015] If not, the compressor is started, the refrigeration damper is closed, and the refrigeration fan is started until the real-time temperature of the refrigeration compartment is greater than the temperature at the start-up point of the refrigeration compartment.

[0016] If so, the compressor is started, the refrigerator damper is opened, the refrigeration fan is started, and the real-time temperature value of the freezer compartment and the freezer compartment shutdown point temperature value are used to determine whether the real-time temperature value of the freezer compartment is less than the first freezer compartment shutdown point temperature set threshold.

[0017] In some embodiments, after determining whether the real-time temperature value of the freezer compartment is less than the first freezer compartment shutdown point temperature setting threshold, the method further includes:

[0018] If not, continue to control the compressor to start running, open the refrigerator damper, and start the refrigeration fan until the real-time temperature value of the freezer compartment is less than the set threshold temperature for the first freezer compartment shutdown point.

[0019] In some embodiments, after determining whether the set temperature value of the freezer compartment is not less than -5°C, the method further includes:

[0020] If not, determine whether the real-time temperature value of the refrigerator compartment is greater than the temperature value at the start-up point of the refrigerator compartment;

[0021] If not, the compressor is started, the refrigeration damper is closed, and the refrigeration fan is started until the real-time temperature of the refrigeration compartment is greater than the temperature at the start-up point of the refrigeration compartment.

[0022] If so, the compressor is started, the refrigerator damper is closed, the refrigeration fan is started, and based on the real-time temperature value of the freezer compartment and the freezer compartment shutdown point temperature value, it is determined whether the real-time temperature value of the freezer compartment is less than the second freezer compartment shutdown point temperature setting threshold.

[0023] In some embodiments, after determining whether the real-time temperature value of the freezer compartment is less than the second freezer compartment shutdown point temperature setting threshold, the method further includes:

[0024] If so, the compressor will stop running, the refrigerator damper will open, and the refrigeration fan will start running; the temperature threshold for the second freezer compartment shutdown point is set as follows:

[0025] T R2 =T D关机点 -b;

[0026] In the formula, T D关机点 'a' represents the temperature at which the freezer compartment shuts down; 'b' is a manually set parameter with a value range of 4 ≤ a ≤ 7.

[0027] In some embodiments, after determining whether the real-time temperature value of the freezer compartment is less than the second freezer compartment shutdown point temperature setting threshold, the method further includes:

[0028] If not, continue to control the compressor to start running, open the refrigerator damper, and start the refrigeration fan until the real-time temperature value of the freezer compartment is less than the set threshold temperature for the second freezer compartment shutdown point.

[0029] The second aspect of this application provides a refrigerator that implements the energy-saving refrigerator control method with multiple temperature zones as described in any one of the first aspects above, including:

[0030] The refrigerator compartment and the freezer compartment are located inside the cabinet, and the refrigerator compartment is connected to the freezer compartment through an air supply duct;

[0031] A refrigerator compartment sensor is installed inside the refrigerator compartment, on the side away from the door; the refrigerator compartment sensor is used to acquire the real-time temperature value of the refrigerator compartment.

[0032] A freezer compartment sensor is disposed inside the freezer compartment, on the side closest to the refrigerator compartment; the freezer compartment sensor is used to acquire the real-time temperature value of the freezer compartment.

[0033] Refrigeration components disposed within the freezer chamber;

[0034] The control system is electrically connected to the refrigerator compartment sensor, the freezer compartment sensor, and the refrigeration components, and is located on the side away from the door. The control system is used to control the operation or shutdown of the refrigeration components based on the real-time temperature parameters and the refrigerator's set parameters. The real-time temperature parameters include: the real-time temperature value of the refrigerator compartment, the real-time temperature value of the freezer compartment, and the set temperature value of the freezer compartment. The set parameters include: the refrigerator compartment start-up temperature value, the refrigerator compartment stop-up temperature value, the freezer compartment start-up temperature value, and the freezer compartment stop-up temperature value.

[0035] In some embodiments, the cooling assembly includes:

[0036] An air damper is located at the port of the air supply duct, near one end of the freezer compartment;

[0037] A refrigeration fan, wherein the refrigeration fan is electrically connected to the damper;

[0038] Evaporator, which is electrically connected to the refrigeration fan;

[0039] A return air vent, the end of which is connected to the evaporator;

[0040] The compressor is electrically connected to the evaporator.

[0041] In some embodiments, the temperature range of the freezer compartment is -24°C to 8°C.

[0042] This application provides a method for controlling an energy-saving refrigerator with multiple temperature zones and a refrigerator. The method includes: acquiring real-time temperature parameters and refrigerator setting parameters; the real-time temperature parameters include: real-time temperature value of the refrigerator compartment, real-time temperature value of the freezer compartment, and set temperature value of the freezer compartment; the set parameters include: refrigerator compartment start-up temperature value, refrigerator compartment shutdown temperature value, freezer compartment start-up temperature value, and freezer compartment shutdown temperature value; determining whether the set temperature value of the freezer compartment is not less than -5℃; if so, based on the real-time temperature value of the freezer compartment and the freezer compartment shutdown temperature value, determining whether the real-time temperature value of the freezer compartment is less than a first freezer compartment shutdown temperature setting threshold; if so, controlling the compressor to stop running, opening the refrigerator door, and starting the refrigeration fan; the first freezer compartment shutdown temperature setting threshold is: T R1 =T D关机点 -a; where T D关机点The temperature value is the freezer compartment shutdown point temperature; 'a' is a manually set parameter with a value range of 2 ≤ a ≤ 5; the compressor starts running, the refrigerator damper opens, and the refrigeration fan starts running when the real-time temperature value of the refrigerator compartment is greater than the refrigerator compartment shutdown point temperature value and the real-time temperature value of the freezer compartment is not less than the freezer compartment startup point temperature value; the compressor stops running, the refrigerator damper closes, and the refrigeration fan stops running when the real-time temperature value of the refrigerator compartment is less than the refrigerator compartment shutdown point temperature value and the real-time temperature value of the freezer compartment is less than the freezer compartment shutdown point temperature value, so as to realize that the refrigerator with multiple temperature zones does not need to add an extra variable temperature compartment, thus not increasing the manufacturing cost of the refrigerator and not increasing the energy consumption of the refrigerator. Attached Figure Description

[0043] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a flowchart of the energy-saving refrigerator control method with multiple temperature zones in this application;

[0045] Figure 2 This is a schematic diagram of the refrigerator structure in this application.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1-Refrigerator compartment; 11-Air supply duct; 12-Refrigerator compartment sensor; 2-Freezer compartment; 21-Freezer compartment sensor; 3-Refrigeration components; 31-Damper; 32-Refrigeration fan; 33-Evaporator; 34-Return air vent; 35-Compressor; 4-Control system. Detailed Implementation

[0048] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0049] Because some technologies require the addition of a variable temperature compartment in refrigerators with multiple temperature zones, this increases manufacturing costs and reduces energy efficiency. To address this issue, this application provides a control method and a refrigerator for an energy-saving refrigerator with multiple temperature zones. The control method and the refrigerator for an energy-saving refrigerator with multiple temperature zones are described below:

[0050] Depend on Figure 1As can be seen, the first aspect of this application provides a method for controlling an energy-saving refrigerator with multiple temperature zones, including the following steps:

[0051] S100: Acquires real-time refrigerator temperature parameters and refrigerator setting parameters; the real-time refrigerator temperature parameters include: real-time temperature value of the refrigerator compartment, real-time temperature value of the freezer compartment, and set temperature value of the freezer compartment; the refrigerator setting parameters include: refrigerator compartment start-up temperature value, refrigerator compartment stop-up temperature value, freezer compartment start-up temperature value, and freezer compartment stop-up temperature value; wherein, T C开机点 ,T D开机点 To control the temperature values ​​required for refrigeration and freezing as set in the program, i.e., the start-up temperature values ​​for the refrigerator compartment and the freezer compartment, T C关机点 ,T D关机点 The temperature values ​​set by the control program for when refrigeration is not required in the refrigerator and freezer compartments are the shutdown point temperatures for the refrigerator and freezer compartments.

[0052] S200: Determine whether the set temperature value of the freezer compartment is not less than -5℃. If so, based on the real-time temperature value of the freezer compartment and the freezer compartment shutdown point temperature value, determine whether the real-time temperature value of the freezer compartment is less than the first freezer compartment shutdown point temperature setting threshold. If so, control the compressor to stop running, open the refrigerator air damper, and start the refrigeration fan. The first freezer compartment shutdown point temperature setting threshold is: T R1 =T D关机点 -a; where T D关机点 is the temperature value at the shutdown point of the freezer compartment; 'a' is a manually set parameter with a value range of 2≤a≤5; the manually set parameter 'a' is to ensure that the temperature inside the freezer compartment is low enough to ensure the efficiency of air supply to the refrigerator compartment, thereby achieving effective cooling of the refrigerator compartment and accelerating the temperature rise of the freezer compartment as a refrigerator temperature zone, thus avoiding the problem of food being damaged due to the freezer compartment being too cold for a long time.

[0053] The step of determining whether the set temperature value of the freezer compartment is not less than -5℃, and if so, determining whether the real-time temperature value of the freezer compartment is less than the first freezer compartment shutdown temperature setting threshold based on the real-time temperature value of the freezer compartment and the freezer compartment shutdown point temperature value includes the following sub-steps: S210: Determine whether the set temperature value of the freezer compartment is not less than -5℃. If so, determine whether the real-time temperature value of the refrigerator compartment is greater than the refrigerator compartment startup temperature value; S220: If not, control the compressor to start running, close the refrigerator air damper, and start running the refrigeration fan until the real-time temperature value of the refrigerator compartment is greater than the refrigerator compartment startup temperature value; S230: If so, control the compressor to start running, open the refrigerator air damper, start running the refrigeration fan, and determine whether the real-time temperature value of the freezer compartment is less than the first freezer compartment shutdown temperature setting threshold based on the real-time temperature value of the freezer compartment and the freezer compartment shutdown point temperature value.

[0054] After determining whether the real-time temperature value of the freezer compartment is less than the first freezer compartment shutdown point temperature setting threshold, the method further includes the following steps: S240: If not, continue to control the compressor to start running, open the refrigerator door, and start running the refrigeration fan until the real-time temperature value of the freezer compartment is less than the first freezer compartment shutdown point temperature setting threshold.

[0055] After determining whether the set temperature value of the freezer compartment is not less than -5℃, the method further includes the following steps: S211: If not, determine whether the real-time temperature value of the refrigerator compartment is greater than the start-up temperature value of the refrigerator compartment; S212: If not, control the compressor to start running, close the refrigerator damper, and start the refrigeration fan until the real-time temperature value of the refrigerator compartment is greater than the start-up temperature value of the refrigerator compartment; S213: If yes, control the compressor to start running, close the refrigerator damper, start the refrigeration fan, and based on the real-time temperature value of the freezer compartment and the stop-up temperature value of the freezer compartment, determine whether the real-time temperature value of the freezer compartment is less than the second stop-up temperature set threshold of the freezer compartment.

[0056] After determining whether the real-time temperature value of the freezer compartment is less than the second freezer compartment shutdown point temperature setting threshold, the following steps are also included: S214: If yes, then control the compressor to stop running, open the refrigerator air damper, and start the refrigeration fan; the second freezer compartment shutdown point temperature setting threshold is: T R2 =T D关机点 -b; where T D关机点 'a' represents the temperature at which the freezer compartment shuts down; 'b' is a manually set parameter with a value range of 4 ≤ a ≤ 7. The manually set parameter 'b' is used to ensure that the temperature inside the freezer compartment is low enough to guarantee efficient airflow to the refrigerator compartment, achieving effective cooling of the refrigerator compartment. At the same time, it accelerates the temperature rise of the freezer compartment as a refrigerator temperature zone, preventing the freezer from being at too low a temperature for an extended period, which could damage food.

[0057] After determining whether the real-time temperature value of the freezer compartment is less than the set threshold for the second freezer compartment shutdown point temperature, the method further includes the following steps: S215: If not, continue to control the compressor to start running, open the refrigerator door, and start running the refrigeration fan until the real-time temperature value of the freezer compartment is less than the set threshold for the second freezer compartment shutdown point temperature.

[0058] S300: When the real-time temperature of the refrigerator compartment is greater than the refrigerator compartment shutdown temperature and the real-time temperature of the freezer compartment is not less than the freezer compartment startup temperature, the compressor is controlled to start running, the refrigerator damper is opened, and the refrigeration fan is started running; when the real-time temperature of the freezer compartment is less than the first freezer compartment shutdown temperature setting threshold or the second freezer compartment shutdown temperature setting threshold, the compressor is controlled to stop running, the refrigerator damper is opened, and the refrigeration fan is started running to continue cooling the refrigerator compartment until the real-time temperature of the refrigerator compartment is greater than the refrigerator compartment shutdown temperature and the real-time temperature of the freezer compartment is not less than the freezer compartment startup temperature, the compressor is controlled to start running, the refrigerator damper is opened, and the refrigeration fan is started running.

[0059] S400: Until the real-time temperature of the refrigerator compartment is lower than the refrigerator compartment shutdown temperature and the real-time temperature of the freezer compartment is lower than the freezer compartment shutdown temperature, control the compressor to stop running, close the refrigerator damper, and stop the refrigeration fan. Control the compressor to start running, open the refrigerator damper, and start the refrigeration fan until the real-time temperature of the refrigerator compartment is lower than the refrigerator compartment shutdown temperature and the real-time temperature of the freezer compartment is lower than the freezer compartment shutdown temperature, then control the compressor to stop running, close the refrigerator damper, and stop the refrigeration fan, completing the refrigeration cycle.

[0060] This application, based on existing refrigerator structures, achieves multi-temperature zone switching between 8 and -24°C in the freezer compartment through optimized control design without increasing costs. This allows existing refrigerator-freezer units to combine refrigeration and freezing functions, meeting variable-temperature storage needs without affecting the refrigeration functions of the refrigerator and freezer. Furthermore, by optimizing rules on the existing refrigerator, the cold air capacity of the refrigerator and freezer compartments is fully and rationally utilized, avoiding energy waste caused by passive cooling of the freezer compartment due to frequent use of the refrigerator compartment, resulting in excessively low freezing temperatures. When the freezer compartment is used for refrigeration, no additional electric heating wire is needed, improving the safety of refrigerator operation. This application addresses the energy waste problem and variable-temperature environmental conditions encountered by users in existing single-cycle refrigerator systems. Without increasing costs, through rule optimization, it addresses the issue of passive cooling in the freezer compartment when the indoor temperature is lower than the required temperature. It utilizes the existing refrigeration system and air ducts to transfer excess cold air to the compartments with higher cooling efficiency, maximizing thermal circulation and heat exchange efficiency. This achieves multiple temperature zone combinations while simultaneously saving energy.

[0061] A second aspect of this application provides an energy-saving refrigerator with multiple temperature zones, implementing a control method for an energy-saving refrigerator with multiple temperature zones as described in any of the above embodiments, comprising: a refrigerator compartment 1 and a freezer compartment 2 disposed within the refrigerator body, the refrigerator compartment 1 being connected to the freezer compartment 2 via an air duct 11; a refrigerator compartment sensor 12 disposed within the refrigerator compartment 1, located on the side away from the door; the refrigerator compartment sensor 12 being used to acquire the real-time temperature value of the refrigerator compartment; and a freezer compartment sensor 21 disposed within the freezer compartment 2, located on the side away from the door; the freezer compartment sensor 21 being used to acquire the real-time temperature value of the refrigerator compartment; and a freezer compartment sensor 21 disposed within the freezer compartment 2, located on the side away from the door; the freezer compartment sensor 21 being used to acquire the real-time temperature value of the refrigerator compartment. The system acquires the real-time temperature value of the freezer compartment; a refrigeration component 3 is installed in the freezer compartment 2; a control system 4 is electrically connected to the refrigerator compartment sensor 12, the freezer compartment sensor 21, and the refrigeration component 3, and is located on the side near the refrigerator compartment 1; the control system 4 is used to control the operation or shutdown of the refrigeration component 3 according to the real-time temperature parameters and the refrigerator's set parameters; the real-time temperature parameters include: the real-time temperature value of the refrigerator compartment, the real-time temperature value of the freezer compartment, and the set temperature value of the freezer compartment; the set parameters include: the refrigerator compartment's start-up temperature value, the refrigerator compartment's stop-up temperature value, the freezer compartment's start-up temperature value, and the freezer compartment's stop-up temperature value. The effects of each part of the system when executing the above method can be found in the above method embodiments, and will not be repeated here.

[0062] Depend on Figure 2 It is understood that the refrigeration component 3 includes: an air damper 31, which is located at the port of the air supply duct 11, near one end of the freezer compartment 2; a refrigeration fan 32, which is electrically connected to the air damper 31; an evaporator 33, which is electrically connected to the refrigeration fan 32; a return air inlet 34, the end of which is connected to the evaporator 33; and a compressor 35, which is electrically connected to the evaporator 33. The evaporator 33 of the refrigeration system is located inside the freezer compartment 2. The refrigerator compartment 1 is refrigerated by supplying air to the refrigerator compartment 1 through the refrigeration fan 32, the air damper 31, and the air supply duct 11. The freezer compartment 2 is refrigerated by supplying air to the freezer compartment 2 through the refrigeration fan 32 and the duct. The refrigerator compartment 1 is cooled by the evaporator 33 located in the freezer compartment 2. A refrigeration fan 32 rotates the evaporator 33, and the cold air from the evaporator 33 is sent to the refrigerator compartment 1 via a damper 31. After heat exchange in the refrigerator compartment 1, the air returns to the evaporator 33 through the refrigeration return air duct for further heat exchange. Similarly, the freezer compartment 2 is cooled by the refrigeration fan 32 rotating the refrigeration air duct, which transfers the cold air from the evaporator 33 to the freezer compartment 2. After heat exchange in the freezer compartment 2, the air returns to the evaporator 33 through the return air vent 34 for further heat exchange. The effects of each part of the system when performing the above method can be found in the above method embodiments, and will not be repeated here.

[0063] In this embodiment, the temperature range of the freezer compartment 2 is -24°C to 8°C. The freezer compartment can serve as a multi-temperature zone, with a temperature range of -24°C to 8°C. The multi-temperature zone provided in this application can cover a wide temperature range of refrigeration (2°C to 8°C) and freezing (-16°C to -24°C).

[0064] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A control method of an energy saving refrigerator having multi-temperature zones, characterized in that, The method comprises the following steps: acquiring a refrigerator real-time temperature parameter and a refrigerator set parameter; the refrigerator real-time temperature parameter comprises a refrigerating chamber real-time temperature value, a freezing chamber real-time temperature value and a freezing chamber set temperature value; the refrigerator set parameter comprises a refrigerating chamber start temperature value, a refrigerating chamber stop temperature value, a freezing chamber start temperature value and a freezing chamber stop temperature value; judging whether the freezing chamber set temperature value is not less than -5℃, if the freezing chamber set temperature value is not less than -5℃, judging whether the freezing chamber real-time temperature value is less than a first freezing chamber stop temperature set threshold value based on the freezing chamber real-time temperature value and the freezing chamber stop temperature value, if yes, controlling the compressor to stop running, the refrigerating chamber air door to open and the refrigeration fan to start running; the first freezing chamber stop temperature set threshold value is: T R1 = T D关机点 -a; In the formula, T D关机点 is the freezing chamber shutdown point temperature value; a is a human set parameter, and the value range is 2≤a≤5; until the refrigerating chamber real-time temperature value is greater than the refrigerating chamber stop temperature value and the freezing chamber real-time temperature value is not less than the freezing chamber start temperature value, controlling the compressor to start running, the refrigerating chamber air door to open and the refrigeration fan to start running; until the refrigerating chamber real-time temperature value is less than the refrigerating chamber stop temperature value and the freezing chamber real-time temperature value is less than the freezing chamber stop temperature value, controlling the compressor to stop running, the refrigerating chamber air door to close and the refrigeration fan to stop running; if the freezing chamber set temperature value is less than -5℃, judging whether the refrigerating chamber real-time temperature value is greater than the refrigerating chamber start temperature value; if no, controlling the compressor to start running, the refrigerating chamber air door to close and the refrigeration fan to start running until the refrigerating chamber real-time temperature value is greater than the refrigerating chamber start temperature value; if yes, controlling the compressor to start running, the refrigerating chamber air door to close and the refrigeration fan to start running, and judging whether the freezing chamber real-time temperature value is less than a second freezing chamber stop temperature set threshold value based on the freezing chamber real-time temperature value and the freezing chamber stop temperature value; if yes, controlling the compressor to stop running, the refrigerating chamber air door to open and the refrigeration fan to start running; the second freezing chamber stop temperature set threshold value is: T R2 = T D关机点 -b; In the formula, T D关机点 is the freezing chamber shutdown point temperature value; b is a human set parameter, and the value range is 4≤a≤7; wherein, the refrigeration system evaporator is located in the freezing chamber, the refrigerating chamber is supplied with air through the refrigeration fan, the air door and the air supply air duct to realize refrigeration, and the freezing chamber is supplied with air through the refrigeration fan and the air duct to realize refrigeration.

2. The multi-temperature zone energy saving refrigerator control method according to claim 1, wherein, the judgment of whether the freezing chamber set temperature value is not less than -5℃, if yes, the judgment of whether the freezing chamber real-time temperature value is less than the first freezing chamber stop temperature set threshold value based on the freezing chamber real-time temperature value and the freezing chamber stop temperature value comprises: judging whether the freezing chamber set temperature value is not less than -5℃, if yes, judging whether the refrigerating chamber real-time temperature value is greater than the refrigerating chamber start temperature value; if no, controlling the compressor to start running, the refrigerating chamber air door to close and the refrigeration fan to start running until the refrigerating chamber real-time temperature value is greater than the refrigerating chamber start temperature value; if yes, controlling the compressor to start running, the refrigerating chamber air door to open and the refrigeration fan to start running, and judging whether the freezing chamber real-time temperature value is less than the first freezing chamber stop temperature set threshold value based on the freezing chamber real-time temperature value and the freezing chamber stop temperature value.

3. The multi-temperature zone energy saving refrigerator control method according to claim 1, wherein, The judgment of whether the freezing chamber real-time temperature value is less than the first freezing chamber shutdown point temperature setting threshold value further comprises: If not, continue to control the compressor to start running, the refrigeration air door to open, and the refrigeration fan to start running until the freezing chamber real-time temperature value is less than the first freezing chamber shutdown point temperature setting threshold value.

4. The multi-temperature zone energy saving refrigerator control method according to claim 1, wherein, The judgment of whether the freezing chamber real-time temperature value is less than the second freezing chamber shutdown point temperature setting threshold value further comprises: If not, continue to control the compressor to start running, the refrigeration air door to open, and the refrigeration fan to start running until the freezing chamber real-time temperature value is less than the second freezing chamber shutdown point temperature setting threshold value.

5. A refrigerator, which implements the control method of the energy-saving refrigerator with multiple temperature zones according to any one of claims 1 to 4, characterized in that, Comprise: The refrigeration chamber (1) and the freezing chamber (2) arranged in the cabinet, the refrigeration chamber (1) is connected with the freezing chamber (2) through the air supply air duct (11); The refrigeration chamber sensor (12) is arranged in the refrigeration chamber (1) and is arranged away from the door body; the refrigeration chamber sensor (12) is used for acquiring the refrigeration chamber real-time temperature value; The freezing chamber sensor (21) is arranged in the freezing chamber (2) and is arranged close to the refrigeration chamber (1); the freezing chamber sensor (21) is used for acquiring the freezing chamber real-time temperature value; The refrigeration assembly (3) arranged in the freezing chamber (2); The control system (4) is electrically connected with the refrigeration chamber sensor (12), the freezing chamber sensor (21) and the refrigeration assembly (3), and is arranged away from the door body; the control system (4) is used for controlling the operation or stop of the refrigeration assembly (3) according to the refrigerator real-time temperature parameter and the refrigerator setting parameter; The refrigerator real-time temperature parameter comprises the refrigeration chamber real-time temperature value, the freezing chamber real-time temperature value and the freezing chamber setting gear temperature value; the refrigerator setting parameter comprises the refrigeration chamber start point temperature value, the refrigeration chamber shutdown point temperature value, the freezing chamber start point temperature value and the freezing chamber shutdown point temperature value.

6. The refrigerator according to claim 5, wherein The refrigeration assembly (3) comprises: The air door (31) is arranged at the port of the air supply air duct (11) and is close to one end of the freezing chamber (2); The refrigeration fan (32) is electrically connected with the air door (31); The evaporator (33) is electrically connected with the refrigeration fan (32); The air return port (34) is connected with the evaporator (33) at the end portion; The compressor (35) is electrically connected with the evaporator (33).

7. The refrigerator according to claim 5, wherein The temperature of the freezing chamber (2) is in the range of -24℃ to 8℃.

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