Refrigerator and its temperature control method, controller and storage medium

Abstract

The temperature control method of the refrigerator provided by this application includes: determining whether the variable temperature compartment of the refrigerator needs to execute a cooling mode or a heating mode; and when the variable temperature compartment needs to execute a cooling mode or a heating mode, adjusting the opening length of the air inlet of the variable temperature compartment to the initial value S, then obtaining the actual temperature of the variable temperature compartment at intervals of time t, and according to the next actual temperature T X+1 of the variable temperature compartment and the current actual temperature T X and the preset target temperature T s to adjust the opening length of the air inlet so that the actual temperature of the variable temperature compartment meets the preset conditions. Based on this, the temperature of the variable temperature compartment of the refrigerator can be controlled more precisely.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerator temperature control, and in particular to a refrigerator and a temperature control method, a controller and a storage medium thereof. Background Art

[0002] Some refrigerators not only have a refrigerator and a freezer, but also a variable temperature chamber. The temperature of the variable temperature chamber is usually between the freezer and the refrigerator, and is mainly used to store fish and meat and foods with specific temperature requirements.

[0003] Cold air enters the variable temperature chamber through the air inlet of the variable temperature chamber to change the temperature of the variable temperature chamber. In the related art, the air inlet of the variable temperature chamber can usually only be fully opened or fully closed. In this case, it is difficult to achieve accurate control of the temperature of the variable temperature chamber. Summary of the invention

[0004] The present application aims to provide a refrigerator and a temperature control method, a controller and a storage medium thereof, so as to more accurately control the temperature of a variable temperature chamber of the refrigerator.

[0005] In order to solve the above technical problems, the temperature control method of a refrigerator provided in the present application comprises:

[0006] Determine whether the variable temperature chamber of the refrigerator needs to execute a cooling mode or a heating mode; and

[0007] When the variable temperature room needs to execute the cooling mode or heating mode, the opening length of the air inlet of the variable temperature room is adjusted to the initial value S, and then the actual temperature of the variable temperature room at each interval t is obtained, and the next actual temperature T of the variable temperature room is set according to the actual temperature of the variable temperature room. X+1 The actual temperature T X And the preset target temperature T s According to the size relationship between them, adjust the opening length of the air inlet so that the actual temperature of the variable temperature chamber reaches the preset conditions.

[0008] In some embodiments, determining whether the temperature-changing chamber needs to execute a cooling mode or a heating mode includes:

[0009] According to the preset target temperature T of the variable temperature chamber s The actual temperature T X The size relationship between them is used to determine whether the variable temperature chamber needs to execute the cooling mode or the heating mode.

[0010] In some embodiments, according to the preset target temperature T of the variable temperature chamber s The actual temperature T X The relationship between the size of the temperature and the temperature of the room is used to determine whether the temperature-changing room needs to be in the cooling mode or the heating mode.

[0011] The actual temperature T in the changing room XGreater than the preset target temperature T of the variable temperature room s In the case of , it is determined that the variable temperature room needs to execute the cooling mode;

[0012] The actual temperature T in the changing room X Lower than the preset target temperature T of the variable temperature room s In this case, it is determined that the variable temperature room needs to execute the heating mode.

[0013] In some embodiments, the initial value S={[(ΔT·L) / (T G -T D )]·K 1 +K 2 L}, where ΔT = T G -T s , T G is the upper limit temperature of the variable temperature chamber, T D is the lower limit temperature of the variable temperature chamber, L is the length of the air inlet when it is fully opened, K 1 and K 2 are coefficients greater than 0 and less than 1, K 2 L is the upper limit temperature T G The corresponding opening length of the air inlet.

[0014] In some embodiments, adjusting the size of the air inlet of the temperature-changing chamber to an initial value S includes:

[0015] The air inlet of the temperature-changing chamber is closed so that the open length of the air inlet is 0; and

[0016] Increase the opening length of the air inlet from 0 to the initial value S.

[0017] In some embodiments, the preset conditions include:

[0018] The next actual temperature of the variable temperature room T X+1 With the set temperature T s The absolute difference between them is less than or equal to the first value.

[0019] In some embodiments, the preset conditions further include:

[0020] The next actual temperature of the variable temperature room T X+1 The actual temperature T X The absolute difference between is less than or equal to the second value.

[0021] In some embodiments, the second value is less than the first value.

[0022] In some embodiments, according to the next actual temperature T of the variable temperature chamber X+1 The actual temperature T X And the preset target temperature T sThe size relationship between them, and the adjustment of the opening length of the air inlet include:

[0023] According to the next actual temperature T of the variable temperature room X+1 The actual temperature T X And the preset target temperature T s The size relationship between them can be used to adjust the opening length of the air inlet into at least two levels.

[0024] In some embodiments, according to the next actual temperature T of the variable temperature chamber X+1 The actual temperature T X And the preset target temperature T s The size relationship between the two, the opening length of the air inlet is adjusted in at least two levels including:

[0025] According to the next actual temperature T of the variable temperature room X+1 The actual temperature T X And the preset target temperature T s The size relationship between them is used to perform first-level and second-level adjustments on the opening length of the air inlet.

[0026] In some embodiments, according to the next actual temperature T of the variable temperature chamber X+1 The actual temperature T X And the preset target temperature T s The first-level adjustment of the opening length of the air inlet includes:

[0027] When the variable temperature room needs to execute the cooling mode, the next actual temperature T of the variable temperature room is determined. X+1 Is it less than the current actual temperature T of the variable temperature room? X , and the next actual temperature T of the variable temperature room X+1 Is it greater than the preset target temperature T of the variable temperature room? s , and at the next actual temperature T of the variable temperature room X+1 Less than the actual temperature T of the variable temperature room X , and the next actual temperature of the variable temperature room is T X+1 Greater than the preset target temperature T of the variable temperature room s When the opening length of the air inlet is adjusted at least once, the opening length of the air inlet is reduced by (1 / 2) each time the adjustment is made. X {[(ΔT.L) / (T G -T D )].K 1}, until the next actual temperature T of the variable temperature room X+1 No longer less than the actual temperature T of the variable temperature chamber X , and the next actual temperature of the variable temperature room is T X+1 No longer less than the preset target temperature T of the variable temperature chambers , where X is incremented by 1 at each subsequent adjustment; and / or,

[0028] When the temperature rise mode is required in the variable temperature room, the next actual temperature T of the variable temperature room is determined. X+1 Is it less than the current actual temperature T of the variable temperature room? X , and the next actual temperature T of the variable temperature room X+1 Is it lower than the preset target temperature T of the variable temperature room? s , and at the next actual temperature T of the variable temperature room X+1 Less than the actual temperature T of the variable temperature room X , and the next actual temperature of the variable temperature room is T X+1 Lower than the preset target temperature T of the variable temperature room s When the opening length of the air inlet is adjusted at least once, the opening length of the air inlet is reduced by (1 / 2) each time the adjustment is made. X {[(ΔT.L) / (T G -T D )].K 1}, until the next actual temperature T of the variable temperature room X+1 No longer less than the actual temperature T of the variable temperature chamber X , and the next actual temperature of the variable temperature room is T X+1 No longer less than the preset target temperature T of the variable temperature chamber s , where X is incremented by 1 at each next adjustment;

[0029] Where ΔT = T G -T s , T G is the upper limit temperature of the variable temperature chamber, T D is the lower limit temperature of the variable temperature chamber, L is the length of the air inlet when it is fully opened, K 1 is a coefficient greater than 0 and less than 1.

[0030] In some embodiments, when the variable temperature chamber needs to execute the cooling mode, the next actual temperature T of the variable temperature chamber is set to X+1 The actual temperature T X And the preset target temperature T s The second-level adjustment of the opening length of the air inlet includes:

[0031] At the next actual temperature T X+1 No longer less than the actual temperature T of the variable temperature chamber X , and the next actual temperature of the variable temperature room is T X+1 No longer greater than the preset target temperature T of the variable temperature chamber s After that, determine the next actual temperature T of the variable temperature room X+1Is it greater than or equal to the current actual temperature T of the variable temperature room? X , and the next actual temperature T of the variable temperature room X+1 Is it less than or equal to the preset target temperature T of the temperature change room? s ;

[0032] At the next actual temperature T X+1 Greater than or equal to the current actual temperature T of the variable temperature room X , and the next actual temperature of the variable temperature room is T X+1 Greater than the preset target temperature T of the variable temperature room s When the opening length of the air inlet is adjusted at least once, the opening length of the air inlet is increased by (1 / 2) each time the adjustment is made. X {[(ΔT.L) / (T G -T D )].K 1}, until the actual temperature of the variable temperature chamber reaches the preset condition, where X is increased by 1 before each adjustment;

[0033] At the next actual temperature T X+1 Less than the actual temperature T of the variable temperature room X , and the next actual temperature of the variable temperature room is T X+1 Less than or equal to the preset target temperature T of the temperature change room s When the opening length of the air inlet is adjusted at least once, the opening length of the air inlet is reduced by (1 / 2) each time the adjustment is made. X {[(ΔT.L) / (T G -T D )].K 1} until the actual temperature of the variable temperature chamber reaches the preset condition, where X is increased by 1 before each adjustment.

[0034] In some embodiments, when the temperature-changing chamber needs to perform a heating mode, the temperature of the temperature-changing chamber is set to the next actual temperature T X+1 The actual temperature T X And the preset target temperature T s The second-level adjustment of the opening length of the air inlet includes:

[0035] At the next actual temperature T X+1 No longer less than the actual temperature T of the variable temperature chamber X , and the next actual temperature of the variable temperature room is T X+1 No longer greater than the preset target temperature T of the variable temperature chamber s After that, determine the next actual temperature T of the variable temperature room X+1 Is it greater than or equal to the current actual temperature T of the variable temperature room? X , and the next actual temperature T of the variable temperature roomX+1 Is it greater than or equal to the preset target temperature T of the temperature change room? s ;

[0036] At the next actual temperature T X+1 Greater than or equal to the actual temperature T of the variable temperature room X , and the next actual temperature of the variable temperature room is T X+1 Lower than the preset target temperature T of the variable temperature room s When the opening length of the air inlet is adjusted at least once, the opening length of the air inlet is reduced by (1 / 2) each time the adjustment is made. X {[(ΔT.L) / (T G -T D )].K 1}, until the actual temperature of the variable temperature chamber reaches the preset condition, where X is increased by 1 before each adjustment;

[0037] At the next actual temperature T X+1 Greater than or equal to the actual temperature T of the variable temperature room X , and the next actual temperature of the variable temperature room is T X+1 Greater than or equal to the preset target temperature T of the temperature change room s When the opening length of the air inlet is adjusted at least once, the opening length of the air inlet is increased by (1 / 2) each time. X {[(ΔT.L) / (T G -T D )].K 1} until the actual temperature of the variable temperature chamber reaches the preset condition, where X is increased by 1 before each adjustment.

[0038] In some embodiments, the temperature control method further comprises:

[0039] At the next actual temperature T of the variable temperature room X+1 The actual temperature T X And the preset target temperature T s The size relationship between them is adjusted, and the opening length of the air inlet is adjusted to make the actual temperature of the variable temperature chamber reach the preset condition. Then, the actual temperature of the variable temperature chamber is obtained at each interval t, and the next actual temperature T of the variable temperature chamber is set according to the actual temperature T of the variable temperature chamber. X+1 With the preset target temperature T s The relationship between the size of the temperature of the variable temperature chamber is used to determine whether the actual temperature of the variable temperature chamber no longer meets the preset conditions; and

[0040] When the actual temperature of the variable temperature chamber no longer meets the preset conditions, the opening length of the air inlet is adjusted to make the actual temperature of the variable temperature chamber return to a state that meets the preset conditions.

[0041] In some embodiments, according to the next actual temperature T of the variable temperature chamber X+1With the preset target temperature T s The relationship between the size of the temperature and the temperature of the variable temperature chamber is used to determine whether the actual temperature of the variable temperature chamber no longer meets the preset conditions, including:

[0042] Determine the next actual temperature T of the variable temperature room X+1 With the preset target temperature T s is greater than the first value; and

[0043] At the next actual temperature T X+1 With the preset target temperature T s When the absolute difference is greater than the first value, it is determined that the actual temperature of the variable temperature chamber no longer meets the preset condition.

[0044] In some embodiments, when the actual temperature of the variable temperature chamber no longer meets the preset condition, adjusting the opening length of the air inlet includes:

[0045] At the next actual temperature T X+1 With the preset target temperature T s When the difference is greater than the first value, increase the opening length of the air inlet by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}; and / or,

[0046] At the next actual temperature T X+1 With the preset target temperature T s When the difference is less than the negative of the first value, the opening length of the air inlet is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1};

[0047] Where ΔT = T G -T s , T G is the upper limit temperature of the variable temperature chamber, T D is the lower limit temperature of the variable temperature chamber, L is the length of the air inlet when it is fully opened, K 1 is a coefficient greater than 0 and less than 1.

[0048] The controller provided in the present application includes a memory and a processor coupled to the memory, and the processor is configured to execute the temperature control method of any embodiment of the present application based on instructions stored in the memory.

[0049] The refrigerator provided in the present application includes a variable temperature chamber and an adjusting mechanism, the variable temperature chamber has an air inlet, and the adjusting mechanism adjusts the opening length of the air inlet. It is characterized in that the refrigerator also includes the controller of the present application, and the controller is connected to the adjusting mechanism signal to adjust the opening length of the air inlet by controlling the action of the adjusting mechanism.

[0050] In some embodiments, the variable temperature chamber has at least two air inlets, and the adjustment mechanism adjusts the opening lengths of the at least two air inlets.

[0051] In some embodiments, the variable temperature chamber has two air inlets arranged side by side along a first direction, and the adjustment mechanism adjusts the open lengths of the two air inlets arranged side by side along the first direction.

[0052] In some embodiments, the adjustment mechanism includes a power mechanism, a transmission mechanism and two adjustment members, the two adjustment members are arranged between two air inlets arranged side by side along a first direction, the power mechanism is driven and connected to the two adjustment members through the transmission mechanism, so as to adjust the opening length of the two air inlets arranged side by side along the first direction by driving the two adjustment members to move in the opposite direction along the first direction, and the adjustment mechanism is connected to the controller signal through the power mechanism.

[0053] In some embodiments, racks are provided on both adjusting members, the racks on both adjusting members extend along a first direction, and are spaced apart from each other along a second direction perpendicular to the first direction, and the transmission mechanism includes a first gear, which is meshed between the two adjusting members and is connected to a power mechanism so as to drive the two adjusting members to move in opposite directions along the first direction under the drive of the power mechanism.

[0054] In some embodiments, the transmission mechanism further includes a second gear and a screw rod, the second gear is coaxially arranged with the first gear and meshes with the screw rod, and the screw rod is drivingly connected to the power mechanism.

[0055] In some embodiments, the two adjusting members each include a meshing portion and a shielding portion connected to each other, a rack is disposed on the meshing portion, and the shielding portions of the two adjusting members are located on opposite sides of the first gear along the first direction, and are respectively used to shield the two air inlets arranged side by side along the first direction, so as to adjust the opening length of the two air inlets arranged side by side along the first direction.

[0056] In some embodiments, the motive mechanism includes an electric motor.

[0057] In some embodiments, the refrigerator includes a guide rail, and the two adjusting members are arranged on the guide rail to move along the first direction under the guidance of the guide rail; and / or the refrigerator includes a displacement sensor, and the displacement sensor detects the displacement of the adjusting member.

[0058] In some embodiments, the refrigerator includes a temperature measuring component, which detects the actual temperature of the variable temperature chamber and is connected to the controller signal to feed back the actual temperature of the variable temperature chamber at intervals of time t to the controller.

[0059] The computer-readable storage medium provided in the present application stores computer instructions, and the computer instructions are executed by a processor to perform the temperature control method of any embodiment.

[0060] The present application adjusts the opening size of the air inlet first coarsely and then finely, and comprehensively considers the real-time temperature change trend of the variable temperature chamber and whether it meets the standards for real-time dynamic adjustment, thereby effectively improving the temperature control accuracy of the variable temperature chamber.

[0061] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0063] Figure 1 This is a simplified structural diagram of the refrigerator in an embodiment of the present application.

[0064] Figure 2 It is a front schematic diagram of the air duct mask in the embodiment of the present application.

[0065] Figure 3 It is a partial schematic diagram of the back side of the air duct mask in the embodiment of the present application.

[0066] Figure 4 The structure of the adjustment mechanism in the embodiment of the present application is shown.

[0067] Figure 5 Schematic diagram of the temperature control method in the embodiment of the present application.

[0068] Figure 6 It is a schematic diagram of the process in the cooling mode in the embodiment of the present application.

[0069] Figure 7 This is a schematic diagram of the process in the heating mode in the embodiment of the present application.

[0070] Figure 8 Schematic diagram of the structure of the controller in the embodiment of the present application.

[0071] Description of reference numerals:

[0072] 10. Refrigerator;

[0073] 1. Variable temperature room; 11. Air inlet; 12. Air duct mask;

[0074] 2. Adjustment mechanism; 21. Power mechanism; 22. Transmission mechanism; 23. Adjustment member; 24. Motor; 25. Screw; 26. First gear; 27. Second gear; 28. Meshing part; 281. Rack; 29. ​​Shielding part;

[0075] 3. Guide rails;

[0076] 4. Temperature measuring device; 41. Temperature sensor;

[0077] 5. Displacement sensor;

[0078] 6. Controller; 61. Memory; 62. Processor; 63. Communication interface; 64. Bus;

[0079] 7. Refrigerator;

[0080] 8. Freezer;

[0081] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0082] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without carrying out creative work are within the scope of protection of this application.

[0083] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0084] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0085] In the description of the present application, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present application.

[0086] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0087] Figure 1-Figure 8 The refrigerator and its temperature control method and controller of the present application are exemplarily shown.

[0088] For ease of understanding, first combine Figure 1-Figure 4 The structure of the refrigerator is introduced.

[0089] See also Figure 1 In order to meet the increasingly diverse low-temperature storage needs of the public, some refrigerators 10 not only have a refrigerating chamber 7 and a freezing chamber 8, but also a variable temperature chamber 1. The variable temperature chamber 1 is an independent compartment with a temperature between the freezing chamber 8 and the refrigerating chamber 7 and an adjustable temperature. Figure 1 In the figure, the variable temperature chamber 1 is located between the refrigerating chamber 7 and the freezing chamber 8, but it should be understood that the relative position relationship between the variable temperature chamber 1 and the refrigerating chamber 7 and the freezing chamber 8 is not limited to this, but can be set according to actual conditions.

[0090] See also Figure 2-Figure 4 The variable temperature chamber 1 usually has an air inlet 11, and is connected to the cold air supply duct through the air inlet 11. Cold air (for example, low-temperature gas from the evaporator of the refrigerator 10) flows to the air inlet 11 through the cold air supply duct, and when the air inlet 11 is opened, it enters the variable temperature chamber 1, changing the temperature in the variable temperature chamber 1. The opening and closing of the air inlet 11 is controlled by the regulating mechanism 2.

[0091] In the related art, the regulating mechanism 2 can usually only control the opening and closing of the air inlet 11, which results in the air inlet 11 having only two states: fully open and fully closed. It is difficult to achieve precise adjustment of the temperature of the variable temperature chamber. The temperature of the variable temperature chamber is prone to violent fluctuations, affecting the preservation effect.

[0092] Moreover, in the related art, the variable temperature chamber 1 usually has only one air inlet 11, which causes the cold air to enter more concentratedly, making it difficult to ensure the uniformity of the temperature inside the variable temperature chamber 1, which can easily cause some food to be frozen while other food has not yet reached the preset target temperature, affecting the preservation effect.

[0093] It can be seen that the temperature control accuracy and uniformity of temperature control chamber 1 need to be improved.

[0094] In view of the above situation, in order to improve the temperature control accuracy and temperature control uniformity of the variable temperature chamber 1, the present application improves the structure of the refrigerator 1 and the temperature control method.

[0095] Among them, the structural improvement of refrigerator 1 is combined with Figure 2-Figure 4 Provide explanation.

[0096] See also Figure 2-Figure 4 In the present application, the variable temperature chamber 1 no longer has only one air inlet 11, but has at least two air inlets 11. Moreover, in the present application, the regulating mechanism 2 no longer only regulates the opening and closing of the air inlet 11, but also regulates the opening length of the air inlet 11 after opening.

[0097] As the number of air inlets 11 increases, the cold air can enter in a dispersed manner to prevent excessive concentration of the cold air. Therefore, it is beneficial to improve the temperature uniformity of the variable temperature chamber 1 and can effectively prevent the occurrence of the phenomenon that "some foods have been frozen while other foods have not reached the preset target temperature", which is beneficial to improving the preservation effect of the variable temperature chamber 1.

[0098] Moreover, since the adjustment mechanism 2 can adjust the opening length of the air inlet 11, and adjust the opening and closing state of the air inlet 11 as well as the opening length after opening, it is beneficial to achieve more precise control of the temperature of the variable temperature chamber 1, improve the control accuracy of the temperature of the variable temperature chamber 1, and improve the preservation effect of the variable temperature chamber 1.

[0099] It can be seen that by constructing the variable temperature chamber 1 to have at least two air inlets 11 and constructing the adjustment mechanism 2 to adjust the opening length of the air inlet 11, the temperature control accuracy and temperature control uniformity of the variable temperature chamber 1 can be effectively improved, thereby improving the preservation effect of the variable temperature chamber 1.

[0100] Continue to see Figure 2-Figure 4 In some embodiments, the regulating mechanism 2 regulates the opening length of at least two air inlets 11 of the variable temperature chamber 1. At this time, the opening length of at least two air inlets 11 can be regulated by the same regulating mechanism 2, which makes the structure simpler and the control more convenient.

[0101] As an example, see Figure 2-Figure 4 The variable temperature chamber 1 has two air inlets 11 arranged side by side along a first direction X, and the adjustment mechanism 2 adjusts the opening length of the two air inlets 11 arranged side by side along the first direction X.

[0102] In the above arrangement, the two air inlets 11 arranged side by side along the first direction X can realize two-point air supply to the variable temperature chamber 1 in the first direction X, so that the cold air can enter the variable temperature chamber 1 in a relatively dispersed manner in the first direction X, avoiding excessive concentration of cold air due to single-point air supply, which affects the temperature uniformity of the variable temperature chamber 1. Moreover, the two air inlets 11 arranged side by side along the first direction X are adjusted in opening length by the same adjustment mechanism 2, and the structure is relatively simple. At the same time, the adjustment mechanism 2 not only adjusts the opening and closing of the corresponding two air inlets 11, but also adjusts the opening length of the corresponding two air inlets 11 after opening, which is conducive to improving the accuracy of temperature control.

[0103] It can be seen that by providing two air inlets 11 arranged side by side along the first direction X and providing an adjustment mechanism 2 to adjust the opening length of the corresponding two air inlets 11, the temperature control uniformity and temperature control accuracy of the variable temperature chamber 1 can be improved based on a relatively simple structure, thereby achieving a more accurate temperature control process for the variable temperature chamber 1.

[0104] In order to enable the adjustment mechanism 2 to adjust the opening length of the two air inlets 11 arranged side by side along the first direction X, see Figure 3-Figure 4 In some embodiments, the adjustment mechanism 2 includes a power mechanism 21, a transmission mechanism 22 and two adjustment members 23. The two adjustment members 23 are arranged between two air inlets 11 arranged side by side along the first direction X. The power mechanism 21 is drivingly connected to the two adjustment members 23 through the transmission mechanism 22, so as to adjust the opening length of the two air inlets 11 arranged side by side along the first direction X by driving the two adjustment members 23 to move in the opposite direction along the first direction X.

[0105] Based on the above arrangement, it is only necessary to start the power mechanism 21, and the two adjustment members 23 can synchronously move in opposite directions along the first direction X, thereby changing the blocking length of the two air inlets 11 arranged side by side along the first direction X, and realizing synchronous adjustment of the opening lengths of the corresponding two air inlets 11. This is simple and convenient, and it is convenient to realize synchronous linear adjustment of the opening lengths of the two air inlets 11, which is beneficial to further improve the temperature control accuracy of the variable temperature chamber 1.

[0106] Specifically, see Figure 3 and Figure 4 In some embodiments, the power mechanism 21 includes a motor 24. In this way, the adjustment mechanism 2 is an electric adjustment mechanism, which can realize the electric adjustment of the opening size of the air inlet 11, has a simple structure and is easy to control. In specific operation, it is only necessary to control the rotation direction and number of rotations of the motor 24 to adjust the change trend (increase or decrease) and the degree of change of the opening of the air inlet 11, which is simple and convenient.

[0107] Also, see Figure 3-Figure 4In order to achieve synchronous linear adjustment of the open lengths of the two air inlets 11 arranged side by side along the first direction X, in some embodiments, the two adjusting members 23 are provided with racks 281, the racks 281 on the two adjusting members 23 extend along the first direction X, and are spaced apart from each other along a second direction Y perpendicular to the first direction X. The transmission mechanism 22 includes a first gear 26, which is meshed between the racks 281 of the two adjusting members 23 and is connected to the power mechanism 21 to drive the two adjusting members 23 to move in opposite directions along the first direction X under the drive of the power mechanism 21. Figure 2-Figure 4 It can be seen that in some embodiments, the air inlet 11 is arranged on the air duct mask 12 of the refrigerator 10, the first direction X is the width direction (or length direction or left-right direction) of the air duct mask 12, and the second direction Y is the height direction (also the up-down direction parallel to the gravity direction) of the air duct mask 12. The length of the air inlet 11 is the size of the air inlet 11 in the first direction X, and accordingly, the open length of the air inlet 11 is the open size of the air inlet 11 in the first direction X. When the air inlet 11 is arranged on the air duct mask 12, the adjustment mechanism 2 can also be arranged on the air duct mask 12.

[0108] Based on the meshing between the first gear 26 and the racks 281 on the two adjusting members 23, the two adjusting members 23 are driven to move in opposite directions along the first direction X. The structure is simple and the adjustment accuracy is high, which is conducive to more accurate linear adjustment of the open length of the two air inlets 11, thereby achieving more accurate adjustment and control of the temperature of the variable temperature chamber 1.

[0109] Specifically, see Figure 3 and Figure 4 In some embodiments, the transmission mechanism 22 includes not only a first gear 26, but also a second gear 27 and a screw 25. The second gear 27 is coaxially arranged with the first gear 26 and meshes with the screw 25, and the screw 25 is drivingly connected to the power mechanism 21. In this way, the first gear 26 is drivingly connected to the power mechanism 21 through the second gear 27 and the screw 25 in turn. When the power mechanism 21 is started, the power can be transmitted to the second gear 27 via the screw 25, and the coaxially arranged first gear 26 is driven by the second gear 27 to rotate, so that the first gear 26 can drive the two adjusting members 23 to move in the opposite direction along the first direction X during the rotation process based on the meshing relationship with the racks 281 on the two adjusting members 23, thereby realizing the synchronous linear adjustment of the opening size of the two air inlets 11 and accurately adjusting the temperature of the variable temperature chamber 1.

[0110] Also, see Figure 3 and Figure 4In some embodiments, the two adjusting members 23 each include a meshing portion 28 and a shielding portion 29 connected to each other, a rack 281 is disposed on the meshing portion 28, and the shielding portions 29 of the two adjusting members 23 are located on opposite sides of the first gear 26 along the first direction X, and are used to shield the two air inlets 11 respectively to adjust the opening length of the two air inlets 11. Figure 3 It can be seen that in some embodiments, the shielding portion 29 is connected to one end of the meshing portion 28 away from the other adjusting member 23 and has a width (dimension along the second direction Y) greater than the meshing portion 28, so that the adjusting member 23 is roughly L-shaped.

[0111] Based on the above arrangement, when the first gear 26 rotates, the two racks 281 can drive the two shielding parts 29 to move in the opposite direction along the first direction X, synchronously approaching or moving away from the two air inlets 11, changing the shielding length of the two air inlets 11, and realizing synchronous linear adjustment of the opening length of the two air inlets 11, which is not only simple and convenient but also compact in layout.

[0112] In order to improve the movement stability of the two adjusting members 23, see Figure 3 and Figure 4 In some embodiments, the refrigerator 10 includes a guide rail 3, and two adjusting members 23 are arranged on the guide rail 3 to move along the first direction X under the guidance of the guide rail 3. Since the guide rail 3 can guide the two adjusting members 23 to move along the first direction X and play a certain role in limiting the two adjusting members 23, the two adjusting members 23 can move more smoothly along the first direction X to adjust the opening length of the two air inlets 11. The guide rail 3 extends along the first direction X, and the two adjusting members 23 are slidably arranged on the guide rail 3. And, by Figure 3 and Figure 4 It can be seen that in some embodiments, a guide rail 3 is respectively provided on both sides of the two adjusting members 23 along the second direction Y. At this time, the refrigerator 10 includes two guide rails 3, and the two guide rails 3 can limit and guide the two adjusting members 23. The structure is more reliable, and the movement stability of the two adjusting members 23 is higher.

[0113] Also, see Figure 3 In some embodiments, the refrigerator 10 includes a displacement sensor 5, which detects the displacement of the adjusting member 23. In this way, the displacement of the adjusting member 23 can be obtained in a timely and accurate manner, and the opening size adjustment of the air inlet 11 can be determined, providing data support for the opening size adjustment process of the air inlet 11. Figure 3As shown, when the two adjusting members 23 move synchronously in opposite directions along the first direction X, since the movement displacements of the two adjusting members 23 are always equal in magnitude, only one displacement sensor 5 is needed to detect the displacement of one adjusting member 23 to obtain the movement displacements of the two adjusting members 23. Therefore, only one displacement sensor 5 can be provided for the two adjusting members 23 to simplify the structure and reduce the cost.

[0114] exist Figure 2-Figure 4 In the illustrated embodiment, the variable temperature chamber 1 has only one group of two air inlets 11 arranged side by side along the first direction X, but it should be noted that the structure of the refrigerator 10 is not limited thereto. For example, in other embodiments not shown in the figure, the variable temperature chamber 1 may have at least two groups of two air inlets 11 arranged side by side along the first direction X to further improve the temperature control uniformity of the variable temperature chamber 1. In this case, each group of air inlets 11 may be respectively equipped with an adjusting mechanism 2 to adjust the opening sizes of the two air inlets 11 in each group of air inlets 11.

[0115] In addition, the refrigerator 10 of each of the aforementioned embodiments may further include a temperature measuring component 4, which detects the actual temperature of the variable temperature chamber 1. In this way, it is convenient to adjust the opening size of the air inlet 11 according to the actual temperature of the variable temperature chamber 1, so as to achieve the regulation of the temperature of the variable temperature chamber 1. Specifically, the temperature measuring component 4 may include a temperature sensor 41, and is arranged on the air duct mask 12, so that the temperature measuring component 4 is located in the variable temperature chamber 1 and can detect the actual temperature of the variable temperature chamber 1. When detecting the temperature, the temperature measuring component 4 can feedback the temperature detection result once every preset time interval t, so as to obtain the latest temperature of the variable temperature chamber 1 in time, and realize a more accurate temperature control process.

[0116] Next, combine Figure 5-Figure 7 The temperature control method of the refrigerator 10 in the present application is described.

[0117] See also Figure 5-Figure 7 In the present application, the temperature control method of the refrigerator 10 includes:

[0118] S100, determining whether the variable temperature chamber 1 of the refrigerator 10 needs to execute a cooling mode or a heating mode;

[0119] S200: When the variable temperature chamber 1 needs to execute the cooling mode or the heating mode, the opening length of the air inlet 11 of the variable temperature chamber 1 is adjusted to the initial value S, and then the actual temperature of the variable temperature chamber 1 at each interval t is obtained, and the next actual temperature T of the variable temperature chamber 1 is set according to the actual temperature T of the variable temperature chamber 1. X+1 The actual temperature T X And the preset target temperature T s The size relationship between them is used to adjust the opening length of the air inlet 11 so that the actual temperature of the variable temperature chamber 1 reaches the preset condition.

[0120] Based on step S100 and step S200, when the variable temperature chamber 1 needs to execute the cooling mode or the heating mode, the present application firstly roughly adjusts the air inlet 11 of the variable temperature chamber 1 so that the opening length of the variable temperature chamber 1 becomes the initial value S, and then finely adjusts the opening length of the air inlet 11, and during the fine-tuning process, comprehensively considers the next actual temperature T of the variable temperature chamber 1. X+1 With the preset target temperature T s The relationship between the size and the next actual temperature T of the variable temperature room 1 X+1 The actual temperature T X In this way, the size of the air inlet 11 can be adjusted dynamically in real time, which is beneficial to improving the temperature control accuracy of the variable temperature chamber 1, reducing the temperature fluctuation of the variable temperature chamber 1, and improving the preservation effect of the variable temperature chamber 1.

[0121] Among them, since the rough adjustment is performed first and then the fine adjustment, the fine adjustment process can be used to further correct the rough adjustment result. Therefore, it can effectively solve the problem that it is difficult to adjust the temperature of the variable temperature chamber 1 to the standard (that is, to meet the preset conditions) with a single adjustment, and it is more convenient to adjust the temperature of the variable temperature chamber 1 to the standard more accurately.

[0122] Moreover, since the next actual temperature T of the variable temperature room 1 X+1 With the preset target temperature T s The size relationship between them can reflect whether the actual temperature of the variable temperature chamber 1 has reached the standard after each adjustment, and the next actual temperature T of the variable temperature chamber 1 X+1 The actual temperature T X The size relationship between them can reflect the temperature change trend before and after each adjustment. The next actual temperature T of the variable temperature room 1 X+1 With the preset target temperature T s The relationship between the size and the next actual temperature T of the variable temperature room 1 X+1 The actual temperature T X The relationship between the size of the temperature of the variable temperature chamber 1 can comprehensively reflect the real-time change of the temperature and whether it meets the standard, so as to achieve a more accurate response to the actual temperature of the variable temperature chamber 1. Therefore, in the fine-tuning process, the next actual temperature T of the variable temperature chamber 1 is comprehensively considered. X+1 With the preset target temperature T s The relationship between the size and the next actual temperature T of the variable temperature room 1 X+1 The actual temperature T X The size relationship between them is conducive to achieving a more precise fine-tuning process, thereby further improving the temperature control accuracy of the variable temperature chamber 1.

[0123] It can be seen that in steps S100 and S200, the opening size of the air inlet 11 can be adjusted first coarsely and then finely, and real-time dynamic adjustment can be made by comprehensively considering the real-time change trend of the temperature in the variable temperature chamber and whether it meets the standard, thereby effectively improving the temperature control accuracy of the variable temperature chamber 1.

[0124] As an example of step S100, see Figure 6 and Figure 7 In some embodiments, determining whether the variable temperature chamber 1 needs to execute the cooling mode or the heating mode in step S100 includes:

[0125] According to the preset target temperature T of the variable temperature chamber 1 s The actual temperature T X The size relationship between them is used to determine whether the variable temperature chamber 1 needs to execute the cooling mode or the heating mode.

[0126] Specifically, in some embodiments, according to the preset target temperature T of the variable temperature chamber 1 s The actual temperature T X The relationship between the size of the temperature and the temperature of the room 1 is used to determine whether the temperature-changing chamber 1 needs to execute the cooling mode or the heating mode.

[0127] The current actual temperature T in the variable temperature room 1 X Greater than the preset target temperature T of temperature change room 1 s In the case of , it is determined that the variable temperature room 1 needs to execute the cooling mode;

[0128] The current actual temperature T in the variable temperature room 1 X Less than the preset target temperature T of the variable temperature room 1 s In this case, it is determined that temperature changing chamber 1 needs to execute the heating mode.

[0129] Among them, the preset target temperature T of the variable temperature room 1 is s The actual temperature T of the variable temperature room 1 X The size relationship between them can reflect the actual temperature of the variable temperature room 1 and the preset target temperature T when the control starts. s Therefore, it can be used as a basis for judging whether to execute the heating and cooling mode. Specifically, when the current actual temperature T of the variable temperature room 1 X Greater than the preset target temperature T of temperature change room 1 s When T X >T s (i.e. T X -T s >0), it means that when the control starts, the current actual temperature of the variable temperature room 1 is T X The preset target temperature T of the temperature-changing chamber 1 s high, the temperature needs to be lowered, therefore, it is determined that the cooling mode needs to be executed; on the contrary, when the current actual temperature T of the variable temperature room 1X Less than the preset target temperature T of temperature change room 1 s When T X <T s (i.e. T X -T s <0), indicating that when the control starts, the current actual temperature of the variable temperature room 1 is T X The preset target temperature T of the temperature-changing chamber 1 s The temperature is low and needs to be raised. Therefore, it is determined that the heating mode needs to be executed.

[0130] Also, see Figure 6 and Figure 7 In some embodiments, the initial value S in step S200 is {[(ΔT·L) / (T G -T D )]·K 1 +K 2 L}, where ΔT = T G -T s , T G is the upper limit temperature of the variable temperature chamber 1, T D is the lower limit temperature of the variable temperature chamber 1, L is the length of the air inlet 11 when it is fully opened, K 1 and K 2 are coefficients greater than 0 and less than 1, K 2 L is the upper limit temperature T G The corresponding opening length of the air inlet 11.

[0131] Based on the calculation formula of the initial value S, the initial value S is determined by the upper limit temperature T of the variable temperature chamber 1. G , lower limit temperature T D , upper limit temperature T G With the preset target temperature T s The temperature difference ΔT between the air inlet 11, the full opening length L of the air inlet 11, and the upper limit temperature T of the air inlet 11 G The corresponding open length K 2 L, and K 1 It is jointly decided that, in this way, a more accurate and feasible coarse adjustment process can be achieved, which is conducive to reducing the difficulty of the subsequent fine adjustment process and improving the accuracy of temperature control.

[0132] Where, (ΔT·L) / (T G -T D ) corresponds to reaching the preset target temperature T s The theoretical opening length of the air inlet 11 required can make the initial value S and the preset target temperature T s There is a certain corresponding relationship, which is relatively accurate, but the initial value S is not directly equal to (ΔT·L) / (T G -T D ), but also increased K2 L and K 1 , mainly to ensure that the minimum open length of the coarse adjustment at least meets the upper limit temperature T G requirements, and prevent the calculated result of the initial value S from being greater than the full-open length L of the air inlet 11.

[0133] Specifically, the calculation formula for the initial value S is set as K 2 L is mainly to ensure that the minimum open length of the rough adjustment at least meets the upper temperature T G The requirement is to ensure that the temperature of the coarse-adjustable time-varying greenhouse can at least be maintained at the upper limit temperature T G If K is not added 2 L, if the preset target temperature T s Equal to the upper limit temperature T G , then (ΔT·K) / (T G -T D ) is 0, the initial value S is 0, which will cause the adjustment mechanism 2 to not act, which is unreasonable. 2 L, even if the preset target temperature T s Equal to the upper limit temperature T G , the regulating mechanism 2 will also act to adjust the air inlet 11 to the upper limit temperature T G The corresponding open length is therefore more reasonable and feasible.

[0134] In addition, the calculation formula of the initial value S is set as K 1 , mainly to prevent the impossible situation that the calculated result of the initial value S is greater than the full opening length L of the air inlet 11. If (ΔT·L) / (T G -T D ) is not multiplied by K 1 , then when the preset target temperature T s Equal to the lower limit temperature T D When (ΔT·L) / (T G -T D ) is equal to L, plus K 2 L, then the initial value S is greater than L, which is unreasonable. G -T D ) multiplied by K 1 After that, even if the preset target temperature T s Equal to the lower limit temperature T D , the initial value S can also be made not greater than L, but less than or equal to L, therefore, it is more reasonable and feasible.

[0135] It can be seen that based on the formula S = {[(ΔT·L) / (T G -T D )]·K 1 +K2 L}, it is more reasonable and convenient to adjust the temperature of the variable temperature chamber to the preset target temperature T s The initial value S of the temperature controller can be adjusted to achieve a coarse adjustment process that is more in line with actual needs, which is conducive to reducing the difficulty of fine adjustment and improving the accuracy of temperature control.

[0136] Also, see Figure 6 and Figure 7 In some embodiments, in step S200, adjusting the size of the air inlet 11 of the variable temperature chamber 1 to the initial value S includes:

[0137] The air inlet 11 of the temperature-changing chamber 1 is closed so that the open length of the air inlet 11 is 0;

[0138] The open length of the air inlet 11 is increased from 0 to the initial value S.

[0139] The above-mentioned coarse adjustment method is a method of first returning to zero and then adjusting to the initial value S. It is relatively simple and convenient for accurately adjusting the opening length of the air inlet 11 to the required initial value S. This method of first returning to zero and then adjusting to the initial value S is particularly suitable for restarting after power failure and preset target temperature T s The situation is reset.

[0140] See also Figure 6 and Figure 7 In some embodiments, the preset conditions in step S200 include:

[0141] The next actual temperature T of the variable temperature room 1 X+1 With the set temperature T s The absolute difference between them is less than or equal to the first value, that is, |T X+1 -T s |≤first value.

[0142] The first value is a positive number, which can be expressed as a, which is proportional to the actual temperature of the greenhouse 1 and the set temperature T s The allowable deviation value between can be preset according to the actual situation. Set the preset condition to include |T X+1 -T s |≤the first value, so that after fine adjustment, the temperature of the variable temperature chamber 1 can be within the allowable error range, achieving a more accurate temperature control process.

[0143] Further, see Figure 6 and Figure 7 In some embodiments, the preset conditions in step S200 also include:

[0144] The next actual temperature T of the variable temperature room 1 X+1 The actual temperature T XThe absolute difference between them is less than or equal to the second value, that is, |T X+1 -T X |≤second value.

[0145] The second value is a positive number, which can be counted as b, corresponding to the allowable deviation value between any two adjacent actual temperatures of the obtained variable temperature chamber 1, which can be preset according to actual conditions. The preset condition is set to further include |T X+1 -T X |≤ the second value, so that after fine adjustment, not only the temperature of the variable temperature room 1 and the set object temperature T s The deviation is within the allowable range, and the temperatures of the variable temperature chamber 1 at different times are also within the allowable range and will not fluctuate too much. Therefore, a more stable and accurate temperature control process can be achieved.

[0146] Specifically, in some embodiments, the second value is smaller than the first value. For example, in some embodiments, the first value a is 1.5 and the second value b is 0.5. For example, in other embodiments, the first value a is 1 and the second value b is 0.5. In this way, the fluctuation between the temperature of the variable temperature chamber 1 at different times can be controlled to be smaller than the temperature of the variable temperature chamber 1 and the set object temperature T s The deviation between the temperature of the variable temperature chamber 1 and the temperature of the variable temperature chamber 1 can be further improved to further improve the stability and accuracy of the temperature of the variable temperature chamber 1, so that the temperature of the variable temperature chamber 1 can be more stably maintained at the set object temperature T s Nearby, to achieve better preservation effect.

[0147] In order to adjust the temperature of the variable temperature chamber 1 to the preset conditions, see Figure 6 and Figure 7 In the above embodiments, in step S200, the next actual temperature T of the variable temperature chamber 1 is set according to X+1 The actual temperature T X And the preset target temperature T s The size relationship between the two can be adjusted by:

[0148] According to the next actual temperature T of the variable temperature room 1 X+1 The actual temperature T X And the preset target temperature T s The size relationship between them is such that the opening length of the air inlet 11 is adjusted in at least two levels.

[0149] The above steps make the fine-tuning process include at least two levels of adjustment. These at least two levels of adjustment together with the coarse adjustment process make the entire step S200 include at least three levels of adjustment. In this way, step S200 can perform multi-level adjustment on the temperature of variable temperature chamber 1. Since each level can adjust and correct the previous level, and each level of fine-tuning comprehensively considers the real-time temperature fluctuation and compliance status, it is conducive to achieving a more accurate temperature adjustment process.

[0150] Specifically, see Figure 6 and Figure 7 In some embodiments, the next actual temperature T of the variable temperature room 1 is X+1 The actual temperature T X And the preset target temperature T s The size relationship between the two, the opening length of the air inlet 11 is adjusted in at least two levels including:

[0151] According to the next actual temperature T of the variable temperature room 1 X+1 The actual temperature T X And the preset target temperature T s The opening length of the air inlet 11 is adjusted by the first and second levels according to the size relationship between the two.

[0152] The above steps make the fine adjustment process include two levels of adjustment, namely the first level and the second level, and can adjust the temperature of the variable temperature chamber 1 to meet the standard based on fewer adjustment links.

[0153] Among them, as an example, see Figure 6 and Figure 7 , the above is based on the next actual temperature T of the variable temperature room 1 X+1 The actual temperature T X And the preset target temperature T s The first-level adjustment of the opening length of the air inlet 11 includes:

[0154] When the temperature-changing chamber 1 needs to execute the cooling mode, the next actual temperature T of the temperature-changing chamber 1 is determined. X+1 Is it less than the current actual temperature T of the variable temperature room 1? X , and the next actual temperature T of the variable temperature room 1 X+1 Is it greater than the preset target temperature T of temperature change room 1? s , and at the next actual temperature T of the variable temperature room 1 X+1 Less than the current actual temperature T of the variable temperature room 1 X , and the next actual temperature of the variable temperature room 1 is T X+1 Greater than the preset target temperature T of temperature change room 1 s (i.e. T X+1 <T X (T X+1 -TX <0), and T X+1 >T s (T X+1 -T s >0)), the open length of the air inlet 11 is adjusted at least once, and the open length of the air inlet 11 is reduced by (1 / 2) each time the adjustment is made. X {[(ΔT.L) / (T G -T D )].K 1}, until the next actual temperature T of the variable temperature room 1 X+1 No longer less than the current actual temperature T of the variable temperature room 1 X , and the next actual temperature of the variable temperature room 1 is T X+1 No longer less than the preset target temperature T of the variable temperature room 1 s , where X is incremented by 1 at each subsequent adjustment; and / or,

[0155] When the temperature-changing chamber 1 needs to execute the heating mode, the next actual temperature T of the temperature-changing chamber 1 is determined. X+1 Is it less than the current actual temperature T of the variable temperature room 1? X , and the next actual temperature T of the variable temperature room 1 X+1 Is it lower than the preset target temperature T of temperature change room 1? s , and at the next actual temperature T of the variable temperature room 1 X+1 Less than the current actual temperature T of the variable temperature room 1 X , and the next actual temperature of the variable temperature room 1 is T X+1 Less than the preset target temperature T of temperature change room 1 s (i.e. T X+1 <T X (T X+1 -T X <0), and T X+1 <T s (T X+1 -T s <0)), the opening length of the air inlet 11 is adjusted at least once, and the opening length of the air inlet 11 is reduced by (1 / 2) each time the adjustment is made. X {[(ΔT.L) / (T G -T D )].K 1}, until the next actual temperature T of the variable temperature room 1 X+1 No longer less than the current actual temperature T of the variable temperature room 1 X , and the next actual temperature of the variable temperature room 1 is T X+1 No longer less than the preset target temperature T of the variable temperature room 1 s , where X is incremented by 1 each time the next adjustment is made.

[0156] The above steps ensure that the first-stage adjustment is an iterative adjustment process regardless of the cooling mode or the heating mode, and each iterative adjustment causes the opening length of the air inlet 11 to change by 1 / 2 of the previous one. In this way, a more precise first-stage adjustment process can be achieved, which facilitates the adjustment to obtain the optimal opening size through precise searching, thereby improving the accuracy of temperature control.

[0157] Among them, the iteration conditions of the cooling mode and the heating mode in the first-level adjustment process are different.

[0158] Specifically, the iteration condition of the cooling mode in the first stage regulation process is T X+1 -T X <0, and T X+1 -T s >0, only at T X+1 -T X <0, and T X+1 -T s >0, each adjustment in the first stage of the cooling mode is performed. In the cooling mode, T X+1 -T X <0, and T X+1 -T s >0, which means that the temperature is currently decreasing and has not yet dropped to the preset target temperature T s In this case, the opening length of the air inlet 11 is reduced by (1 / 2) each time. X {[(ΔT.L) / (T G -T D )].K 1}, the opening length of the air inlet 11 can be gradually reduced while maintaining the cooling trend, slowing down the cooling speed to prevent the items in the variable temperature room 1 from being frozen and damaged due to excessive cooling. It can be seen that the first-level adjustment in the cooling mode using the method in the above steps can achieve a safer and more precise first-level cooling fine adjustment process.

[0159] Unlike the cooling mode, the iteration condition of the heating mode in the first stage of regulation is T X+1 -T X <0, and T X+1 -T s <0, only at T X+1 -T X <0, and T X+1 -T s <0, each adjustment in the first stage adjustment process in the heating mode is performed. In the heating mode, T X+1 -T X <0, and T X+1 -T s<0, which means that the temperature is currently being cooled and has not yet reached the preset target temperature T s In this case, the opening length of the air inlet 11 is reduced by (1 / 2) each time. X {[(ΔT.L) / (T G -T D )].K 1}, the amount of cold air entering the variable temperature chamber 1 can be reduced, the cooling speed can be slowed down, and the cooling can be gradually converted into heating, so that the temperature can be subsequently raised to the preset target temperature T s It can be seen that by using the above steps to perform the first-stage adjustment in the temperature rise mode, a more precise first-stage temperature rise fine adjustment process can be achieved.

[0160] Based on the aforementioned first-stage cooling and regulation process, further, see Figure 6 In some embodiments, when the variable temperature chamber 1 needs to execute the cooling mode, according to the next actual temperature T of the variable temperature chamber 1 X+1 The actual temperature T X And the preset target temperature T s The second-level adjustment of the opening length of the air inlet 11 includes:

[0161] At the next actual temperature T of the variable temperature room 1 X+1 No longer less than the current actual temperature T of the variable temperature room 1 X , and the next actual temperature of the variable temperature room 1 is T X+1 No longer greater than the preset target temperature T of temperature change chamber 1 s Then, the next actual temperature T of the variable temperature room 1 is determined. X+1 Is it greater than or equal to the current actual temperature T of temperature change room 1? X , and the next actual temperature T of the variable temperature room 1 X+1 Is it less than or equal to the preset target temperature T of temperature change room 1? s ;

[0162] At the next actual temperature T of the variable temperature room 1 X+1 Greater than or equal to the current actual temperature T of the variable temperature room 1 X , and the next actual temperature of the variable temperature room 1 is T X+1 Greater than the preset target temperature T of temperature change room 1 s (i.e., T X+1 ≥T X , and T X+1 >T s , that is, T X+1 -T X ≥0, and T X+1 -T s>0), the open length of the air inlet 11 is adjusted at least once, and the open length of the air inlet 11 is increased by (1 / 2) each time the adjustment is made. X {[(ΔT.L) / (T G -T D )].K 1}, until the actual temperature of the variable temperature chamber 1 reaches the preset condition, wherein X is increased by 1 before each adjustment;

[0163] At the next actual temperature T of the variable temperature room 1 X+1 Less than the current actual temperature T of the variable temperature room 1 X , and the next actual temperature of the variable temperature room 1 is T X+1 Less than or equal to the preset target temperature T of temperature change room 1 s (i.e., T X+1 <T X , and T X+1 ≤T s , that is, T X+1 -T X <0, and T X+1 -T s ≤0), the open length of the air inlet 11 is adjusted at least once, and the open length of the air inlet 11 is reduced by (1 / 2) each time the adjustment is made. X {[(ΔT.L) / (T G -T D )].K 1}, until the actual temperature of variable temperature chamber 1 reaches the preset condition, wherein X is increased by 1 before each adjustment.

[0164] The second stage adjustment process in the cooling mode is started when the iteration condition of the first stage adjustment process in the cooling mode is not satisfied, and according to T X+1 With T X Between and T X+1 With T s Two cyclic iterative adjustments are performed for two different situations of the size relationship between the two, and each iteration round makes the opening length of the air inlet 11 change by 1 / 2 of the previous iteration round. In this way, a more precise second-level adjustment process in the cooling mode can be achieved, which is convenient for adjusting the optimal opening size through precise searching and improving the accuracy of temperature control.

[0165] Among them, in the cooling mode, T X+1 -T X ≥0, and T X+1 -T s >0, indicating that the opening size was reduced excessively during the first stage of cooling fine adjustment, resulting in the current temperature rising, and the temperature of the variable temperature chamber 1 has exceeded the preset target temperature T sIn this case, it is necessary to enlarge the opening of the air inlet 11 to increase the amount of cold air and reduce the temperature. Therefore, the opening length of the air inlet 11 is increased by (1 / 2) each time. X {[(ΔT.L) / (T G -T D )].K 1} iterative adjustment, and whether the preset conditions are met is used as the end condition of the corresponding iterative adjustment process. In this way, the adjustment result of the first-level cooling fine-tuning process can be gradually corrected by increasing the opening length of the air inlet 11 by 1 / 2 of the last adjustment amount each time, so that the temperature of the variable temperature chamber 1 can be gradually reduced to the standard by gradually increasing the amount of cold air entering.

[0166] At the same time, in the cooling mode, T X+1 -T x <0, and T X+1 -T s ≤0, indicating that after the first level of cooling fine adjustment, although the temperature of variable temperature chamber 1 is still cooling, the temperature of variable temperature chamber 1 has dropped to the preset target temperature T s In this case, the opening of the air inlet 11 needs to be adjusted smaller to reduce the amount of cold air and increase the temperature. Therefore, the opening length of the air inlet 11 is reduced by (1 / 2) each time. X {[(ΔT.L) / (T G -T D )].K 1} iterative adjustment, and whether the preset conditions are met is used as the end condition of the corresponding iterative adjustment process. In this way, the adjustment result of the first-stage cooling fine-tuning process can be gradually corrected by reducing the opening length of the air inlet 11 by 1 / 2 of the last adjustment amount each time, so that the temperature of the variable temperature chamber 1 can be gradually increased to meet the standard by gradually reducing the amount of cold air entering.

[0167] It can be seen that the first-level adjustment and the second-level adjustment in the above-mentioned cooling mode can correct the coarse adjustment result in a hierarchical manner to achieve a more precise temperature-changing chamber cooling adjustment process.

[0168] In addition, based on the aforementioned first-stage temperature adjustment process, further, see Figure 7 In some embodiments, when the variable temperature chamber 1 needs to execute the heating mode, the next actual temperature T of the variable temperature chamber 1 is set according to the actual temperature T of the variable temperature chamber 1. X+1 The actual temperature T X And the preset target temperature T s The second-level adjustment of the opening length of the air inlet 11 includes:

[0169] At the next actual temperature T of the variable temperature room 1 X+1 No longer less than the current actual temperature T of the variable temperature room 1 X, and the next actual temperature of the variable temperature room 1 is T X+1 No longer less than the preset target temperature T of the variable temperature room 1 s Then, the next actual temperature T of the variable temperature room 1 is determined. X+1 Is it greater than or equal to the current actual temperature T of temperature change room 1? X , and the next actual temperature T of the variable temperature room 1 X+1 Is it greater than or equal to the preset target temperature T of temperature change room 1? s ;

[0170] At the next actual temperature T of the variable temperature room 1 X+1 Greater than or equal to the current actual temperature T of the variable temperature room 1 X , and the next actual temperature of the variable temperature room 1 is T X+1 Less than the preset target temperature T of the variable temperature room 1 s (i.e., T X+1 ≥T X , and T X+1 <T s , that is, T X+1 -T X ≥0, and T X+1 -T s <0), the open length of the air inlet 11 is adjusted at least once, and the open length of the air inlet 11 is reduced by (1 / 2) each time the adjustment is made. X {[(ΔT.L) / (T G -T D )].K 1}, until the actual temperature of the variable temperature chamber 1 reaches the preset condition, wherein X is increased by 1 before each adjustment;

[0171] At the next actual temperature T of the variable temperature room 1 X+1 Greater than or equal to the current actual temperature T of the variable temperature room 1 X , and the next actual temperature of the variable temperature room 1 is T X+1 Greater than or equal to the preset target temperature T of temperature change room 1 s (i.e., T X+1 ≥T X , and T X+1 ≥T s , that is, T X+1 -T X ≥0, and T X+1 -T s ≥0), the opening length of the air inlet 11 is adjusted at least once, and each time the opening length of the air inlet 11 is increased by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}, until the actual temperature of variable temperature chamber 1 reaches the preset condition, wherein X is increased by 1 before each adjustment.

[0172] The second stage regulation process in the above-mentioned heating mode is started when the iteration condition of the first stage regulation process in the above-mentioned heating mode is not satisfied, and according to T X+1 With T X Between and T X+1 With T s Two cyclic iterative adjustments are performed for two different situations of the size relationship between the two, and each iteration round makes the opening length of the air inlet 11 change by 1 / 2 of the previous iteration round. In this way, a more precise second-level adjustment process in the heating mode can be achieved, which is convenient for adjusting the optimal opening size through precise searching and improving the accuracy of temperature control.

[0173] Among them, in the heating mode, T X+1 -T X ≥0, and T X+1 -T s <0, indicating that after the first level of temperature increase fine adjustment, the temperature of the variable temperature chamber 1 has begun to increase, but has not yet increased to the preset target temperature T s In this case, it is necessary to further reduce the opening of the air inlet 11 to reduce the amount of cold air and increase the temperature. Therefore, the opening length of the air inlet 11 is reduced by (1 / 2) each time. X {[(ΔT.L) / (T G -T D )].K 1} iterative adjustment, and whether the preset conditions are met is used as the end condition of the corresponding iterative adjustment process. In this way, the adjustment result of the first-stage temperature increase fine-tuning process can be gradually corrected by reducing the opening length of the air inlet 11 by 1 / 2 of the last adjustment amount each time, so that the temperature of the variable temperature chamber 1 can be gradually increased to the standard by gradually reducing the amount of cold air entering.

[0174] At the same time, in the heating mode, T X+1 -T X ≥0, and T X+1 -T s ≥0, indicating that after the first level of temperature rise fine adjustment, the temperature of variable temperature chamber 1 is still rising, and the temperature of variable temperature chamber 1 has exceeded the preset target temperature T s In this case, it is necessary to increase the opening of the air inlet 11 to increase the amount of cold air and reduce the temperature. Therefore, the opening length of the air inlet 11 is increased by (1 / 2) each time. X {[(ΔT.L) / (T G -T D )].K 1} iterative adjustment, and whether the preset conditions are met is used as the end condition of the corresponding iterative adjustment process. In this way, the adjustment result of the first-stage temperature rise fine-tuning process can be gradually corrected by increasing the opening length of the air inlet 11 by 1 / 2 of the last adjustment amount each time, so that the temperature of the variable temperature chamber 1 can be gradually reduced to the standard by gradually increasing the amount of cold air entering.

[0175] It can be seen that the first-level regulation and the second-level regulation in the above-mentioned temperature rise mode can correct the coarse adjustment result in a hierarchical manner to achieve a more precise temperature rise regulation process of the variable temperature chamber.

[0176] After executing step S200 , the temperature of the variable temperature chamber 1 can reach a preset condition, thereby achieving a more precise adjustment of the temperature of the variable temperature chamber 1 .

[0177] After the actual temperature of the variable temperature chamber 1 reaches the preset condition in step S200, in order to further improve the stability and accuracy of the temperature of the variable temperature chamber 1, see Figure 6 and Figure 7 In some embodiments, the temperature control method further comprises:

[0178] Get the actual temperature of the variable temperature chamber 1 at each interval t, and according to the next actual temperature T of the variable temperature chamber 1 X+1 With the preset target temperature T s The size relationship between them is used to determine whether the actual temperature of the variable temperature chamber 1 no longer meets the preset condition;

[0179] When the actual temperature of the variable temperature chamber 1 no longer meets the preset conditions, the opening length of the air inlet 11 is adjusted to make the actual temperature of the variable temperature chamber 1 return to a state that meets the preset conditions.

[0180] The above steps can further monitor, adjust and correct the temperature of the variable temperature chamber 1 after step S200, which is conducive to keeping the temperature of the variable temperature chamber 1 more stably in a state that meets the preset conditions, and prevent the equilibrium state of the variable temperature chamber 1 from being destroyed due to frequent opening and closing of the refrigerator door, entry of outside air, etc., which is conducive to further improving the temperature control accuracy of the variable temperature chamber 1, so that the variable temperature chamber 1 can better maintain the optimal equilibrium state corresponding to the preset conditions. The steps after step S200 can be called dynamic adjustment steps.

[0181] Specifically, see Figure 6 and Figure 7 In some embodiments, the dynamic adjustment step is based on the next actual temperature T of the variable temperature chamber 1. X+1 With the preset target temperature T s The relationship between the size of the temperature of the variable temperature chamber 1 and the temperature of the variable temperature chamber 1 no longer meets the preset condition includes:

[0182] Determine the next actual temperature T of temperature-changing chamber 1 X+1With the preset target temperature T s Is the absolute difference of greater than the first value?

[0183] At the next actual temperature T of the variable temperature room 1 X+1 With the preset target temperature T s The absolute difference is greater than the first value (i.e. |T X+1 -T s |>first value), it is determined that the actual temperature of the variable temperature chamber 1 no longer meets the preset condition.

[0184] Among them, |T X+1 -T s |>The first value indicates the difference between the actual temperature of the variable temperature chamber 1 and the preset target temperature T s The difference has exceeded the allowable range. Therefore, when the corresponding conditions are met, it can be determined that the actual temperature of the variable temperature chamber 1 no longer meets the preset conditions.

[0185] Further, see Figure 6 and Figure 7 In some embodiments, when the actual temperature of the variable temperature chamber 1 no longer satisfies the preset condition in the dynamic adjustment step, adjusting the opening length of the air inlet 11 includes:

[0186] At the next actual temperature T of the variable temperature room 1 X+1 With the preset target temperature T s The difference is greater than the first value (ie, T X+1 -T s >The first value, that is, T X+1 -T s >a), increase the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}; and / or,

[0187] At the next actual temperature T of the variable temperature room 1 X+1 With the preset target temperature T s The difference is less than the negative of the first value (i.e. T X+1 -T s < negative first value, that is, T X+1 -T s <-a), reduce the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}.

[0188] Among them, whether in heating mode or cooling mode, when T X+1 -T s> the first value, it means that the temperature of the variable temperature chamber 1 is higher than the preset target temperature T s If the air volume is too high, the cooling air volume needs to be increased to lower the temperature. Therefore, the opening length of the air inlet 11 can be increased to return the temperature of the variable temperature chamber 1 to the standard state. In this case, the opening length of the air inlet 11 is increased by (1 / 2) each time. X {[(ΔT.L) / (T G -T D )].K 1}, the temperature of the variable temperature chamber 1 can be lowered more finely, so that the temperature of the variable temperature chamber 1 can be more accurately maintained at the preset conditions.

[0189] In addition, whether in heating mode or cooling mode, when T X+1 -T s < negative first value, it means that the temperature of the variable temperature chamber is lower than the preset target temperature T s If the air volume is too high, the amount of cooling air needs to be reduced and the temperature needs to be raised. Therefore, the opening length of the air inlet 11 can be reduced to make the temperature of the variable temperature room 1 return to the standard state. In this case, the opening length of the air inlet 11 is reduced by (1 / 2) each time. X {[(ΔT.L) / (T G -T D )].K 1}, the temperature of the variable temperature chamber 1 can be raised more finely, so that the temperature of the variable temperature chamber 1 can be more accurately maintained at the preset conditions.

[0190] Next, Figure 6 and Figure 7 The temperature adjustment process shown is further explained.

[0191] Figure 6 and Figure 7 The flow chart of the temperature control method in one embodiment in the temperature reduction mode and the temperature increase mode is shown.

[0192] like Figure 6 and Figure 7 As shown, in this embodiment, the temperature control method includes step S100, step S200 and a dynamic adjustment step, and step S200 includes coarse adjustment, first-level adjustment and second-level adjustment processes.

[0193] Specifically, first set T s , and detect the temperature of the variable temperature chamber 1, and then execute step S100, according to T X With T s The relationship between the size of T and the temperature rise mode is used to determine whether to execute the cooling mode or the heating mode. X -T s >0, the cooling mode is executed; T X -Ts <0, the heating mode is executed.

[0194] After the cooling mode and the heating mode are determined, step S200 is executed, and the coarse adjustment process of step S200 is first performed, and then the first level adjustment and the second level adjustment of step S200 are performed in sequence.

[0195] When performing the rough adjustment process, the adjustment mechanism 2 corresponding to the air inlet 11 is first returned to its original position, and the opening length of the air inlet 11 is changed to 0. Then, ΔT=T is calculated. G -T s , and put the calculated result into the formula S={[(ΔT·L) / (T G -T D )]·K 1 +K 2 L}, calculate the initial value S, and use the calculated value of S as the opening length value required for the first action of the regulating mechanism 2, so that the regulating mechanism 2 acts accordingly and adjusts the opening length of the air inlet 11 to S = {[(ΔT·L) / (T G -T D )]·K 1 +K 2 L}, complete the corresponding coarse adjustment process.

[0196] After the rough adjustment process, the first level adjustment process is entered. Specifically, after the adjustment mechanism 2 completes the first action, the latest temperature data of the variable temperature chamber 1 is fed back every time t, that is, T X+1 (T X+1 Compared to T X The latest temperature of the changing room after a time interval of t), and each detected T X+1 The judgment condition T of the first level adjustment in the cooling mode X+1 -T X <0 and T X+1 -T s >0 or the judgment condition of the first level adjustment in the heating mode T X+1 -T X <0 and T X+1 -T s <0, if the condition is met, the regulating mechanism 2 will be activated to reduce the open length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}, in the formula (1 / 2) X When the conditions are met, each action of the regulating mechanism 2 is 1 / 2 of the previous action, so as to achieve the purpose of accurately finding the optimal opening size. After each action of the regulating mechanism 2, X is added by 1 to execute the loop until the data no longer meets the conditions, completing the first-level adjustment process.

[0197] After the first level adjustment process, the second level adjustment process is entered. In the second level adjustment process, whether it is the heating mode or the cooling mode, it is divided into two situations. Among them, the two situations in the cooling mode are T X+1 -T X ≥0, and T X+1 -T s >0 and T X+1 -T X <0, and T X+1 -T s ≤0, in both cases, X is increased by 1, and then the opening length of the air inlet 11 is increased by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1} and reduce the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1 There are two actions. The two situations in the heating mode are T X+1 -T X ≥0, and T X+1 -T s <0 and T X+1 -T X ≥0, and T X+1 -T s ≥0, in both cases, X is increased by 1, and then the open length of the air inlet 11 is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1} and increase the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1 In both the heating mode and the cooling mode, the adjustment mechanism 2 feeds back the latest T at a time interval t after each action is performed. X+1 , and through the condition |T X+1 -T X ∣≤0.5 and ∣T X+1 -T s ∣≤1.5 (1.5 and 0.5 are used as the first value and the second value respectively) is used for judgment. If it does not meet the requirements, X is increased by 1 and the cycle is continued to be executed to make successive corrections. If it meets the requirements, both modes enter the dynamic adjustment process.

[0198] After entering the dynamic adjustment process, continue to feedback the latest T every time t X+1 , through T X+1 -T s <-1.5 and T X+1 -T s >1.5 to judge that the opening length of the air inlet 11 should be increased (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}, or adjust it down (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}, to further correct the temperature difference of the second stage regulation, or for the external ambient temperature T 0 Or the temperature change inside the variable temperature chamber caused by the change of humidity W can be corrected. By constantly searching and correcting the temperature of the variable temperature chamber and dynamically adjusting the factors that destroy the balance, the best balance state can be achieved, so that the food can always be kept in a constant temperature environment.

[0199] It can be seen that the temperature control method of this embodiment can realize dynamic linear adjustment of the opening size of the air inlet 11 in real time through three-level judgment and three-level correction, thereby realizing a smooth and precise temperature control process of the variable temperature chamber 1, so that the variable temperature chamber 1 can operate at a constant temperature and effectively preserve freshness.

[0200] The temperature control methods of the above embodiments can be applied to Figure 2-Figure 4 The refrigerator 10 with two air inlets 11 and the adjustment mechanism 2 shown may also be applied to other refrigerators 10 , for example, may also be applied to a refrigerator 10 with only one air inlet 11 .

[0201] The temperature control methods of the above embodiments can be completed under the control of the controller 6 of the refrigerator 10. Therefore, the present application also provides a controller 6.

[0202] See also Figure 8 In the embodiment of the present application, the controller 6 includes a memory 61 and a processor 62 coupled to the memory 61, and the processor 62 is configured to execute the temperature control method of any embodiment of the present application based on the instructions stored in the memory 61. The controller 6 can be connected to the regulating mechanism 2 (such as the power mechanism 21, specifically, such as the motor 24), the temperature measuring element 4 and the displacement sensor 5 by signal, so as to control the action of the regulating mechanism 2 according to the detection results of the temperature measuring element 4 and the displacement sensor 5, and realize the corresponding temperature control process.

[0203] Specifically, Figure 8As shown, in some embodiments, the controller 6 includes a memory 61, a processor 62, a communication interface 63 and a bus 64. The memory 61 is used to store instructions. The processor 62 is coupled to the memory 61 and is configured to execute the temperature control method of each embodiment of the present invention based on the instructions stored in the memory 61. The memory 61, the processor 62 and the communication interface 63 are connected through a bus 64.

[0204] The memory 61 may be a high-speed RAM memory or a non-volatile memory, etc. The memory 61 may also be a memory array. The memory 61 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules. The processor 62 may be a central processing unit CPU, or an application specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the temperature control method of the present invention.

[0205] In addition, the present application also provides a computer-readable storage medium, and the corresponding computer-readable storage medium stores computer instructions, and the computer instructions are executed by a processor to execute the temperature control method of any embodiment of the present application.

[0206] The above description is only an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A temperature control method for a refrigerator (10), characterized in that, comprising: judging whether the variable temperature compartment (1) of the refrigerator (10) needs to execute a cooling mode or a heating mode; and When the temperature reduction mode or the temperature increase mode needs to be executed in the variable temperature chamber (1), adjust the opening length of the air inlet (11) of the variable temperature chamber (1) to the initial value S, then obtain the actual temperature of the variable temperature chamber (1) at intervals of time t, and according to the next actual temperature T of the variable temperature chamber (1) X+1 and the current actual temperature T X as well as the preset target temperature T s between the sizes, perform at least two - stage adjustments on the opening length of the air inlet (11), including the first - stage adjustment and the second - stage adjustment, so that the actual temperature of the variable temperature chamber (1) reaches the preset conditions. Among them, the first - stage adjustment is a cyclic iterative adjustment process, and each time of iterative adjustment, the opening length of the air inlet (11) changes to 1 / 2 of the previous time. The preset conditions include that the next actual temperature T of the variable temperature chamber (1) X+1 and the preset target temperature T s the absolute difference between them is less than or equal to the first value.

2. The temperature control method according to claim 1, characterized in that, judging whether the variable temperature compartment (1) needs to execute a cooling mode or a heating mode includes: According to the preset target temperature T of the variable temperature chamber (1) s and the current actual temperature T X to determine whether the variable temperature chamber (1) needs to execute a cooling mode or a heating mode.

3. The temperature control method according to claim 2, characterized in that, According to the preset target temperature T of the variable temperature chamber (1) s and the current actual temperature T X to determine whether the variable temperature chamber (1) needs to execute a cooling mode or a heating mode includes: When the current actual temperature T of the variable temperature chamber (1) X is greater than the preset target temperature T of the variable temperature chamber (1) s it is determined that the variable temperature chamber (1) needs to execute a cooling mode; When the current actual temperature T of the variable temperature chamber (1) X is less than the preset target temperature T of the variable temperature chamber (1) s it is determined that the variable temperature chamber (1) needs to execute a heating mode.

4. The temperature control method according to claim 1, characterized in that, The initial value S = {[(ΔT·L) / (T G - T D )]·K 1 + K 2 L}, where ΔT = T G - T s , T G is the upper limit temperature of the variable temperature chamber (1), T D is the lower limit temperature of the variable temperature chamber (1), L is the length when the air inlet (11) is fully opened, K 1 and K 2 are both coefficients greater than 0 and less than 1, K 2 L is the open length of the air inlet (11) corresponding to the upper limit temperature T G .

5. The temperature control method according to claim 1, characterized in that, adjusting the size of the air inlet (11) of the variable temperature compartment (1) to the initial value S includes: closing the air inlet (11) of the variable temperature compartment (1) so that the opening length of the air inlet (11) is 0; and increasing the opening length of the air inlet (11) from 0 to the initial value S.

6. The temperature control method according to claim 1, characterized in that, the preset condition further includes: The absolute difference between the next actual temperature T of the variable temperature chamber (1) X+1 and the current actual temperature T X is less than or equal to the second value.

7. The temperature control method according to claim 6, characterized in that, the second value is less than the first value.

8. The temperature control method according to any one of claims 1-7, characterized in that, According to the next actual temperature T of the variable temperature chamber (1) X+1 and the current actual temperature T X as well as the preset target temperature T s The first-level adjustment of the opening length of the air inlet (11) includes: When the temperature reduction mode needs to be executed in the variable temperature chamber (1), determine the next actual temperature T of the variable temperature chamber (1) X+1 whether it is less than the current actual temperature T of the variable temperature chamber (1) X , and whether the next actual temperature T of the variable temperature chamber (1) X+1 is greater than the preset target temperature T of the variable temperature chamber (1) s , and when the next actual temperature T of the variable temperature chamber (1) X+1 is less than the current actual temperature T of the variable temperature chamber (1) X , and the next actual temperature T of the variable temperature chamber (1) X+1 is greater than the preset target temperature T of the variable temperature chamber (1) s , adjust the opening length of the air inlet (11) at least once, and reduce the opening length of the air inlet (11) by (1 / 2) each time X {[(ΔT.L) / (T G -T D )].K 1}, until the next actual temperature T of the variable temperature chamber (1) X+1 is no longer less than the current actual temperature T of the variable temperature chamber (1) X , and the next actual temperature T of the variable temperature chamber (1) X+1 is no longer less than the preset target temperature T of the variable temperature chamber (1) s , where X is incremented by 1 each time the next adjustment is made; and / or When the warming mode needs to be executed in the variable temperature chamber (1), it is judged whether the next actual temperature T of the variable temperature chamber (1) X+1 is less than the current actual temperature T of the variable temperature chamber (1) X , and whether the next actual temperature T of the variable temperature chamber (1) X+1 is less than the preset target temperature T of the variable temperature chamber (1) s , and when the next actual temperature T of the variable temperature chamber (1) X+1 is less than the current actual temperature T of the variable temperature chamber (1) X , and the next actual temperature T of the variable temperature chamber (1) X+1 is less than the preset target temperature T of the variable temperature chamber (1) s , the opening length of the air inlet (11) is adjusted at least once, and each time it is adjusted, the opening length of the air inlet (11) is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}, until the next actual temperature T of the variable temperature chamber (1) X+1 is no longer less than the current actual temperature T of the variable temperature chamber (1) X , and the next actual temperature T of the variable temperature chamber (1) X+1 is no longer less than the preset target temperature T of the variable temperature chamber (1) s , where X is incremented by 1 each time the next adjustment is made; where, ΔT = T G - T s , T G is the upper limit temperature of the variable temperature chamber (1), T D is the lower limit temperature of the variable temperature chamber (1), L is the length when the air inlet (11) is fully opened, K 1 is a coefficient greater than 0 and less than 1.

9. The temperature control method according to claim 8, characterized in that, When the temperature reduction mode needs to be executed in the variable temperature chamber (1), according to the next actual temperature T of the variable temperature chamber (1) X+1 and the current actual temperature T X as well as the preset target temperature T s The second-level adjustment of the opening length of the air inlet (11) includes: When the next actual temperature T of the variable temperature chamber (1) X+1 is no longer less than the current actual temperature T of the variable temperature chamber (1) X , and the next actual temperature T of the variable temperature chamber (1) X+1 is no longer greater than the preset target temperature T of the variable temperature chamber (1) s , then determine whether the next actual temperature T of the variable temperature chamber (1) X+1 is greater than or equal to the current actual temperature T of the variable temperature chamber (1) X , and whether the next actual temperature T of the variable temperature chamber (1) X+1 is less than or equal to the preset target temperature T of the variable temperature chamber (1) s ; At the next actual temperature T of the variable temperature chamber (1) X+1 is greater than or equal to the current actual temperature T of the variable temperature chamber (1) X , and the next actual temperature T of the variable temperature chamber (1) X+1 is greater than the preset target temperature T of the variable temperature chamber (1) s , the opening length of the air inlet (11) is adjusted at least once, and each time it is adjusted, the opening length of the air inlet (11) is increased by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}, until the actual temperature of the variable temperature chamber (1) reaches the preset condition, where X is incremented by 1 before each adjustment; At the next actual temperature T of the variable temperature chamber (1) X+1 is less than the current actual temperature T of the variable temperature chamber (1) X , and the next actual temperature T of the variable temperature chamber (1) X+1 is less than or equal to the preset target temperature T of the variable temperature chamber (1) s , at least one adjustment is made to the opening length of the air inlet (11), and each time the adjustment is made, the opening length of the air inlet (11) is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}, until the actual temperature of the variable temperature chamber (1) reaches the preset condition, where X is incremented by 1 before each adjustment.

10. The temperature control method according to claim 8, characterized in that, When the warming mode needs to be executed in the variable temperature chamber (1), according to the next actual temperature T of the variable temperature chamber (1) X+1 and the current actual temperature T X as well as the preset target temperature T s The second-level adjustment of the opening length of the air inlet (11) includes: At the next actual temperature T of the variable temperature chamber (1) X+1 is no longer less than the current actual temperature T of the variable temperature chamber (1) X , and when the next actual temperature T of the variable temperature chamber (1) X+1 is no longer less than the preset target temperature T of the variable temperature chamber (1) s , determine whether the next actual temperature T of the variable temperature chamber (1) X+1 is greater than or equal to the current actual temperature T of the variable temperature chamber (1) X , and whether the next actual temperature T of the variable temperature chamber (1) X+1 is greater than or equal to the preset target temperature T of the variable temperature chamber (1) s ; At the next actual temperature T of the variable temperature chamber (1) X+1 is greater than or equal to the current actual temperature T of the variable temperature chamber (1) X , and the next actual temperature T of the variable temperature chamber (1) X+1 is less than the preset target temperature T of the variable temperature chamber (1) s , the opening length of the air inlet (11) is adjusted at least once, and each time it is adjusted, the opening length of the air inlet (11) is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}, until the actual temperature of the variable temperature chamber (1) reaches the preset condition, where X is incremented by 1 before each adjustment; At the next actual temperature T of the variable temperature chamber (1) X+1 is greater than or equal to the current actual temperature T of the variable temperature chamber (1) X , and the next actual temperature T of the variable temperature chamber (1) X+1 is greater than or equal to the preset target temperature T of the variable temperature chamber (1) s , the opening length of the air inlet (11) is adjusted at least once, and each time the opening length of the air inlet (11) is increased by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}, until the actual temperature of the variable temperature chamber (1) reaches the preset condition, where X is incremented by 1 before each adjustment.

11. The temperature control method according to any one of claims 1-7, characterized in that, the temperature control method further includes: Based on the next actual temperature T of the variable temperature chamber (1) X+1 and the current actual temperature T X as well as the preset target temperature T s to adjust the opening length of the air inlet (11). After the actual temperature of the variable temperature chamber (1) reaches the preset condition, obtain the actual temperature of the variable temperature chamber (1) at each interval of time t, and based on the next actual temperature T of the variable temperature chamber (1) X+1 and the preset target temperature T s to determine whether the actual temperature of the variable temperature chamber (1) no longer meets the preset condition; and when the actual temperature of the variable temperature compartment (1) no longer satisfies the preset condition, adjusting the opening length of the air inlet (11) so that the actual temperature of the variable temperature compartment (1) returns to a state where the preset condition is satisfied.

12. The temperature control method according to claim 11, characterized in that, According to the next actual temperature T of the variable temperature chamber (1) X+1 and the preset target temperature T s to determine whether the actual temperature of the variable temperature chamber (1) no longer meets the preset condition includes: Determine the next actual temperature T of the variable temperature chamber (1) X+1 and the preset target temperature T s to check whether the absolute difference is greater than the first value; and When the absolute difference between the next actual temperature T of the variable temperature chamber (1) X+1 and the preset target temperature T s is greater than the first value, it is determined that the actual temperature of the variable temperature chamber (1) no longer meets the preset condition.

13. The temperature control method according to claim 12, characterized in that, when the actual temperature of the variable temperature compartment (1) no longer satisfies the preset condition, adjusting the opening length of the air inlet (11) includes: When the difference between the next actual temperature T of the variable temperature chamber (1) X+1 and the preset target temperature T s is greater than the first value, increase the opening length of the air inlet (11) by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}; and / or, When the difference between the next actual temperature T of the variable temperature chamber (1) X+1 and the preset target temperature T s is less than the negative value of the first value, reduce the opening length of the air inlet (11) by (1 / 2) X {[(ΔT.L) / (T G -T D )].K 1}; where ΔT = T G - T s , T G is the upper limit temperature of the variable temperature chamber (1), T D is the lower limit temperature of the variable temperature chamber (1), L is the length when the air inlet (11) is fully opened, K 1 is a coefficient greater than 0 and less than 1.

14. A controller (6), characterized in that, comprising a memory (61) and a processor (62) coupled to the memory (61), the processor (62) being configured to execute the temperature control method according to any one of claims 1-13 based on instructions stored in the memory (61).

15. A refrigerator (10) comprising a variable temperature compartment (1) and an adjusting mechanism (2), the variable temperature compartment (1) having an air inlet (11), the adjusting mechanism (2) adjusting the opening length of the air inlet (11), characterized in that, the refrigerator (10) further includes the controller (6) according to claim 14, the controller (6) being in signal connection with the adjusting mechanism (2) to adjust the opening length of the air inlet (11) by controlling the operation of the adjusting mechanism (2).

16. The refrigerator (10) according to claim 15, characterized in that, the variable temperature compartment (1) has at least two of the air inlets (11), and the adjusting mechanism (2) adjusts the opening lengths of the at least two air inlets (11).

17. The refrigerator (10) according to claim 16, characterized in that, the variable temperature chamber (1) has two air inlets (11) arranged side by side in the first direction (X), and the adjusting mechanism (2) adjusts the opening lengths of the two air inlets (11) arranged side by side in the first direction (X).

18. The refrigerator (10) according to claim 17, characterized in that, the adjusting mechanism (2) includes a power mechanism (21), a transmission mechanism (22) and two adjusting members (23). The two adjusting members (23) are arranged between the two air inlets (11) arranged side by side in the first direction (X). The power mechanism (21) is drivingly connected to the two adjusting members (23) through the transmission mechanism (22) to adjust the opening lengths of the two air inlets (11) arranged side by side in the first direction (X) by driving the two adjusting members (23) to move in opposite directions along the first direction (X). The adjusting mechanism (2) is signal-connected to the controller (6) through the power mechanism (21).

19. The refrigerator (10) according to claim 18, characterized in that, racks (281) are provided on both of the two adjusting members (23). The racks (281) on the two adjusting members (23) extend along the first direction (X) and are arranged at intervals in a second direction (Y) perpendicular to the first direction (X) between each other. The transmission mechanism (22) includes a first gear (26). The first gear (26) meshes between the racks (281) of the two adjusting members (23) and is drivingly connected to the power mechanism (21) to drive the two adjusting members (23) to move in opposite directions along the first direction (X) under the drive of the power mechanism (21).

20. The refrigerator (10) according to claim 19, characterized in that, the transmission mechanism (22) further includes a second gear (27) and a screw rod (25). The second gear (27) is coaxially arranged with the first gear (26) and meshes with the screw rod (25). The screw rod (25) is drivingly connected to the power mechanism (21).

21. The refrigerator (10) according to claim 19, characterized in that, each of the two adjusting members (23) includes an engaging portion (28) and a shielding portion (29) connected to each other. The rack (281) is provided on the engaging portion (28). The shielding portions (29) of the two adjusting members (23) are located on opposite sides of the first gear (26) along the first direction (X) and are respectively used for shielding the two air inlets (11) arranged side by side in the first direction (X) to adjust the opening lengths of the two air inlets (11) arranged side by side in the first direction (X).

22. The refrigerator (10) according to claim 18, characterized in that, the power mechanism (21) includes a motor (24).

23. The refrigerator (10) according to claim 18, characterized in that, The refrigerator (10) includes guide rails (3), and the two adjusting members (23) are arranged on the guide rails (3) to move along the first direction (X) under the guidance of the guide rails (3); and / or, the refrigerator (10) includes a displacement sensor (5), and the displacement sensor (5) detects the displacement of the adjusting member (23).

24. The refrigerator (10) according to claim 15, wherein, the refrigerator (10) includes a temperature measuring member (4), the temperature measuring member (4) detects the actual temperature of the variable temperature chamber (1), and is in signal connection with the controller (6) to feed back the actual temperature of the variable temperature chamber (1) every time interval t to the controller (6).

25. A computer-readable storage medium storing computer instructions, which are executed by a processor to perform the temperature control method according to any one of claims 1-13.

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