Refrigerator, temperature control method thereof, controller and storage medium

Abstract

The refrigerator provided by this application includes: a variable temperature compartment, the variable temperature compartment includes two air inlets, and the two air inlets are arranged side by side along a first direction; and an adjusting mechanism, including a power mechanism, a transmission mechanism, and two adjusting members, the two adjusting members are arranged between the two air inlets arranged side by side along the first direction, the power mechanism is drivingly connected to the two adjusting members through the transmission mechanism, so as to adjust the opening lengths of the two air inlets arranged side by side along the first direction by driving the two adjusting members to move in opposite directions along the first direction. Based on this, the temperature of the variable temperature compartment of the refrigerator can be more accurately regulated.

Description

Technical Field

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

[0002] Some refrigerators not only have a refrigerating chamber and a freezing chamber, but also have a variable temperature chamber. The temperature of the variable temperature chamber is usually between that of the freezing chamber and the refrigerating chamber, and is mainly used for storing fish, 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 accurately control the temperature of the variable temperature chamber. Summary of the Invention

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

[0005] To solve the above technical problems, the refrigerator provided by the present application includes:

[0006] A variable temperature chamber, which includes two air inlets arranged side by side in a first direction; and

[0007] An adjusting mechanism, including a power mechanism, a transmission mechanism and two adjusting members. The two adjusting members are arranged between the two air inlets arranged side by side in the first direction. The power mechanism is drivingly connected to both of the two adjusting members through the transmission mechanism to adjust the opening lengths of the two air inlets arranged side by side in the first direction by driving the two adjusting members to move in opposite directions along the first direction.

[0008] In some embodiments, racks are provided on both of the two adjusting members. The racks on the two adjusting members both extend along the first direction and are spaced apart from each other in a second direction perpendicular to the first direction. The transmission mechanism includes a first gear, which meshes between the racks of the two adjusting members and is drivingly connected to the power mechanism to drive the two adjusting members to move in opposite directions along the first direction under the drive of the power mechanism.

[0009] 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. The screw rod is drivingly connected to the power mechanism.

[0010] In some embodiments, both of the two adjusting members include an engaging portion and a shielding portion connected to each other. The rack is arranged on the engaging portion. 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 for shielding the two air inlets arranged side by side in the first direction to adjust the opening lengths of the two air inlets arranged side by side in the first direction.

[0011] In some embodiments, the dimension of the shielding portion in the second direction is greater than the dimension of the engaging portion in the second direction.

[0012] In some embodiments, the power mechanism includes an electric motor.

[0013] In some embodiments, the refrigerator includes a guide rail, and two adjusting members are arranged on the guide rail to move along the first direction under the guidance of the guide rail.

[0014] In some embodiments, the refrigerator includes a displacement sensor, and the displacement sensor detects the displacement of the adjusting member.

[0015] In some embodiments, the refrigerator includes a temperature measuring member, and the temperature measuring member detects the actual temperature of the variable temperature chamber.

[0016] In some embodiments, the temperature measuring member feeds back the actual temperature of the variable temperature chamber every time interval t.

[0017] In addition, the temperature control method of the refrigerator provided by the present application includes:

[0018] Determining whether the variable temperature chamber of the refrigerator needs to execute a cooling mode or a heating mode; and

[0019] When the variable temperature chamber needs to execute a cooling mode or a heating mode, starting the adjustment mechanism to adjust the opening length of two air inlets arranged side by side in the first direction so that the actual temperature of the variable temperature chamber reaches a preset condition.

[0020] In some embodiments, determining whether the variable temperature chamber needs to execute a cooling mode or a heating mode includes:

[0021] According to the preset target temperature T s of the variable temperature chamber and the current actual temperature T X to determine whether the variable temperature chamber needs to execute a cooling mode or a heating mode.

[0022] In some embodiments, according to the preset target temperature T s of the variable temperature chamber and the current actual temperature T X to determine whether the variable temperature chamber needs to execute a cooling mode or a heating mode includes:

[0023] When the current actual temperature T X of the variable temperature chamber is greater than the preset target temperature T s of the variable temperature chamber, it is determined that the variable temperature chamber needs to execute a cooling mode;

[0024] When the current actual temperature T X of the variable temperature chamber is less than the preset target temperature T s of the variable temperature chamber, it is determined that the variable temperature chamber needs to execute a heating mode.

[0025] In some embodiments, the preset conditions include:

[0026] The next actual temperature T of the variable temperature chamber X+1 and the set object temperature T s The absolute difference between them is less than or equal to the first value.

[0027] In some embodiments, the preset conditions further include:

[0028] The next actual temperature T of the variable temperature chamber X+1 and the previous actual temperature T X The absolute difference between them is less than or equal to the second value.

[0029] In some embodiments, the second value is less than the first value.

[0030] In some embodiments, adjusting the opening lengths of two air inlets arranged side by side in the first direction to make the actual temperature of the variable temperature chamber reach the preset conditions includes:

[0031] Adjust the opening length of the air inlet to the initial value S, then obtain the actual temperature of the variable temperature chamber at intervals of time t, and according to the next actual temperature T of the variable temperature chamber X+1 and the current actual temperature T X and the preset target temperature T s Adjust the opening length of the air inlet according to the magnitude relationship between them to make the actual temperature of the variable temperature chamber reach the preset conditions.

[0032] In some embodiments, the initial value S = {[(ΔT·L) / (T G -T D )]·K1 + K2L}, 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 when the air inlet is fully opened, and both K1 and K2 are coefficients greater than 0 and less than 1, and K2L is the opening length of the air inlet corresponding to the upper limit temperature T G .

[0033] In some embodiments, adjusting the size of the air inlet of the variable temperature chamber to the initial value S includes:

[0034] Closing the air inlet of the variable temperature chamber to make the opening length of the air inlet 0; and

[0035] Increasing the opening length of the air inlet from 0 to the initial value S.

[0036] In some embodiments, according to the next actual temperature T of the variable temperature chamber X+1 and the current actual temperature TX and a preset target temperature T s Based on the magnitude relationship between them, adjusting the opening length of the air inlet includes:

[0037] Based on the next actual temperature T of the variable temperature chamber X+1 and the current actual temperature T X and a preset target temperature T s Based on the magnitude relationship between them, perform at least two - stage adjustment on the opening length of the air inlet.

[0038] In some embodiments, based on the next actual temperature T of the variable temperature chamber X+1 and the current actual temperature T X and a preset target temperature T s Based on the magnitude relationship between them, performing at least two - stage adjustment on the opening length of the air inlet includes:

[0039] Based on the next actual temperature T of the variable temperature chamber X+1 and the current actual temperature T X and a preset target temperature T s Based on the magnitude relationship between them, perform a first - stage adjustment and a second - stage adjustment on the opening length of the air inlet.

[0040] In some embodiments, based on the next actual temperature T of the variable temperature chamber X+1 and the current actual temperature T X and a preset target temperature T s Based on the magnitude relationship between them, the first - stage adjustment of the opening length of the air inlet includes:

[0041] When the variable temperature chamber needs to execute the cooling mode, determine whether the next actual temperature T of the variable temperature chamber X+1 is less than the current actual temperature T of the variable temperature chamber X , and whether the next actual temperature T of the variable temperature chamber X+1 is greater than the preset target temperature T of the variable temperature chamber s , and when the next actual temperature T of the variable temperature chamber X+1 is less than the current actual temperature T of the variable temperature chamber X , and the next actual temperature T of the variable temperature chamber X+1 is greater than the preset target temperature T of the variable temperature chamber s , perform at least one adjustment on the opening length of the air inlet, and each time the adjustment is made, reduce the opening length of the air inlet by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1}, until the next actual temperature T of the variable temperature chamber X+1 is no longer less than the current actual temperature T of the variable temperature chamber X , and the next actual temperature T of the variable temperature chamber X+1No longer less than the preset target temperature T of the variable temperature chamber s , where X is incremented by 1 each time the next adjustment is made; and / or,

[0042] When the variable temperature chamber needs to execute the heating mode, determine the next actual temperature T of the variable temperature chamber X+1 Whether it is less than the current actual temperature T of the variable temperature chamber X , and whether the next actual temperature T of the variable temperature chamber X+1 is less than the preset target temperature T of the variable temperature chamber s , and when the next actual temperature T of the variable temperature chamber X+1 is less than the current actual temperature T of the variable temperature chamber X , and the next actual temperature T of the variable temperature chamber X+1 is less than the preset target temperature T of the variable temperature chamber s , adjust the opening length of the air inlet at least once, and reduce the opening length of the air inlet by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1} until the next actual temperature T of the variable temperature chamber X+1 is no longer less than the current actual temperature T of the variable temperature chamber X , and the next actual temperature T of the variable temperature chamber X+1 is no longer less than the preset target temperature T of the variable temperature chamber s , where X is incremented by 1 each time the next adjustment is made;

[0043] 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, T is the length when the air inlet is fully open, and T1 is a coefficient greater than 0 and less than 1.

[0044] In some embodiments, when the variable temperature chamber needs to execute the cooling mode, according to the next actual temperature T of the variable temperature chamber X+1 and the current actual temperature T X and the preset target temperature T s between the size relationship, the second-level adjustment of the opening length of the air inlet includes:

[0045] When the next actual temperature T of the variable temperature chamber X+1 is no longer less than the current actual temperature T of the variable temperature chamber X , and the next actual temperature T of the variable temperature chamber X+1 is no longer greater than the preset target temperature T of the variable temperature chamber s after, determine whether the next actual temperature T of the variable temperature chamber X+1 is greater than or equal to the current actual temperature T of the variable temperature chamberX and the next actual temperature T of the variable temperature chamber X+1 is less than or equal to the preset target temperature T of the variable temperature chamber s ;

[0046] When the next actual temperature T of the variable temperature chamber X+1 is greater than or equal to the current actual temperature T of the variable temperature chamber X , and the next actual temperature T of the variable temperature chamber X+1 is greater than the preset target temperature T of the variable temperature chamber s , adjust the open length of the air inlet at least once, and increase the open length of the air inlet by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1} until the actual temperature of the variable temperature chamber reaches the preset condition, where X is incremented by 1 before each adjustment;

[0047] When the next actual temperature T of the variable temperature chamber X+1 is less than the current actual temperature T of the variable temperature chamber X , and the next actual temperature T of the variable temperature chamber X+1 is less than or equal to the preset target temperature T of the variable temperature chamber s , adjust the open length of the air inlet at least once, and decrease the open length of the air inlet by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1} until the actual temperature of the variable temperature chamber reaches the preset condition, where X is incremented by 1 before each adjustment.

[0048] In some embodiments, when the variable temperature chamber needs to execute the heating mode, according to the next actual temperature T of the variable temperature chamber X+1 and the current actual temperature T X as well as the preset target temperature T s , the secondary adjustment of the open length of the air inlet includes:

[0049] When the next actual temperature T of the variable temperature chamber X+1 is no longer less than the current actual temperature T of the variable temperature chamber X , and the next actual temperature T of the variable temperature chamber X+1 is no longer less than the preset target temperature T of the variable temperature chamber s , determine whether the next actual temperature T of the variable temperature chamber X+1 is greater than or equal to the current actual temperature T of the variable temperature chamber X , and whether the next actual temperature T of the variable temperature chamber X+1 is greater than or equal to the preset target temperature T of the variable temperature chamber s ;

[0050] At the next actual temperature T of the variable temperature chamber X+1 is greater than or equal to the current actual temperature T of the variable temperature chamber X and the next actual temperature T of the variable temperature chamber X+1 is less than the preset target temperature T of the variable temperature chamber s perform at least one adjustment on the open length of the air inlet, and reduce the open length of the air inlet by (1 / 2) each time X {[(ΔT.L) / (T G -T D )].K1}, until the actual temperature of the variable temperature chamber reaches the preset condition, where X is incremented by 1 before each adjustment;

[0051] At the next actual temperature T of the variable temperature chamber X+1 is greater than or equal to the current actual temperature T of the variable temperature chamber X and the next actual temperature T of the variable temperature chamber X+1 is greater than or equal to the preset target temperature T of the variable temperature chamber s perform at least one adjustment on the open length of the air inlet, and increase the open length of the air inlet by (1 / 2) each time X {[(ΔT.L) / (T G -T D )].K1}, until the actual temperature of the variable temperature chamber reaches the preset condition, where X is incremented by 1 before each adjustment.

[0052] In some embodiments, the temperature control method further includes:

[0053] After making the actual temperature of the variable temperature chamber reach the preset condition, obtain the actual temperature of the variable temperature chamber at intervals of time t, and according to the next actual temperature T of the variable temperature chamber X+1 and the preset target temperature T s to determine whether the actual temperature of the variable temperature chamber no longer meets the preset condition; and

[0054] When the actual temperature of the variable temperature chamber no longer meets the preset condition, adjust the open length of the air inlet to make the actual temperature of the variable temperature chamber return to the state where the preset condition is met.

[0055] In some embodiments, determining whether the actual temperature of the variable temperature chamber no longer meets the preset condition according to the magnitude relationship between the next actual temperature T of the variable temperature chamber X+1 and the preset target temperature T s includes:

[0056] Determine whether the absolute difference between the next actual temperature T of the variable temperature chamber X+1 and the preset target temperature T s is greater than the first value; and

[0057] When the absolute difference between the next actual temperature T of the variable temperature chamber 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 no longer satisfies the preset condition.

[0058] In some embodiments, when the actual temperature of the variable temperature chamber no longer satisfies the preset condition, adjusting the opening length of the air inlet includes:

[0059] When the difference between the next actual temperature T of the variable temperature chamber X+1 and the preset target temperature T s is greater than the first value, increase the opening length of the air inlet by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1}; and / or,

[0060] When the difference between the next actual temperature T of the variable temperature chamber X+1 and the preset target temperature T s is less than the negative of the first value, reduce the opening length of the air inlet by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1};

[0061] wherein, 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 when the air inlet is fully opened, and K1 is a coefficient greater than 0 and less than 1.

[0062] In addition, the controller provided by 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 the instructions stored in the memory.

[0063] In addition, the computer-readable storage medium provided by the present application stores computer instructions, and the computer instructions are executed by the processor to perform the temperature control method of any embodiment of the present application.

[0064] The refrigerator provided by the present application can synchronously and linearly adjust the opening lengths of the two air inlets through its adjustment mechanism, realizing a more precise adjustment of the air inlet opening degree. Therefore, the temperature control accuracy of the variable temperature chamber can be effectively improved.

[0065] Other features and advantages of the present application will become clear by describing the exemplary embodiments of the present application in detail with reference to the following drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0067] Figure 1 It is a schematic structural diagram of the refrigerator in the embodiment of the present application.

[0068] Figure 2 It is a front schematic view of the air duct mask in the embodiment of the present application.

[0069] Figure 3 It is a partial schematic view of the back of the air duct mask in the embodiment of the present application.

[0070] Figure 4 It shows the structure of the adjustment mechanism in the embodiment of the present application.

[0071] Figure 5 It is a schematic flow chart of the temperature control method in the embodiment of the present application.

[0072] Figure 6 It is a schematic flow chart in the cooling mode in the embodiment of the present application.

[0073] Figure 7 It is a schematic flow chart in the heating mode in the embodiment of the present application.

[0074] Figure 8 It is a schematic structural diagram of the controller in the embodiment of the present application.

[0075] Explanation of reference numerals:

[0076] 10, refrigerator;

[0077] 1, variable temperature compartment; 11, air inlet; 12, air duct mask;

[0078] 2, adjustment mechanism; 21, power mechanism; 22, transmission mechanism; 23, adjustment member; 24, motor; 25, screw; 26, first gear; 27, second gear; 28, engagement part; 281, rack; 29, shielding part;

[0079] 3, guide rail;

[0080] 4, temperature measuring member; 41, temperature sensor;

[0081] 5, displacement sensor;

[0082] 6, controller; 61, memory; 62, processor; 63, communication interface; 64, bus;

[0083] 7. Refrigerating chamber;

[0084] 8. Freezing chamber;

[0085] X. First direction; Y. Second direction. Detailed implementation manners

[0086] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0087] For technologies, methods, and devices known to those of ordinary skill in the relevant field, detailed discussions may not be made, but in appropriate cases, the said technologies, methods, and devices should be regarded as a part of the specification.

[0088] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are usually based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0089] In the description of the present application, it should be understood that using words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above words have no special meanings, and thus cannot be construed as limiting the protection scope of the present application.

[0090] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0091] Figures 1-8 Exemplarily, a refrigerator of the present application, its temperature control method, and a controller are shown.

[0092] For the convenience of understanding, first, in combination with Figures 1-4 the structure of the refrigerator will be introduced.

[0093] Refer to Figure 1, to meet the increasingly diverse low-temperature storage needs of the public, some refrigerators 10 not only have a refrigerating compartment 7 and a freezing compartment 8, but also have a variable-temperature compartment 1. The variable-temperature compartment 1 is an independent compartment with a temperature between that of the freezing compartment 8 and the refrigerating compartment 7 and the temperature can be adjusted. In Figure 1 In it, the variable-temperature compartment 1 is located between the refrigerating compartment 7 and the freezing compartment 8, but it should be understood that the relative positional relationship between the variable-temperature compartment 1 and the refrigerating compartment 7 and the freezing compartment 8 is not limited to this, but can be set according to the actual situation.

[0094] See Figures 2-4 , the variable-temperature compartment 1 usually has an air inlet 11 and is communicated with the cold air duct through the air inlet 11. Cold air (such as the low-temperature gas from the evaporator of the refrigerator 10) flows to the air inlet 11 through the cold air duct and enters the variable-temperature compartment 1 when the air inlet 11 is opened, changing the temperature inside the variable-temperature compartment 1. Among them, the opening and closing of the air inlet 11 are controlled by the adjusting mechanism 2.

[0095] In the related art, the adjusting mechanism 2 usually can only control the opening and closing of the air inlet 11, which results in that the air inlet 11 only has two states of fully open and fully closed, making it difficult to accurately adjust the temperature of the variable-temperature compartment. The temperature of the variable-temperature compartment is prone to violent fluctuations, affecting the fresh-keeping effect.

[0096] Moreover, in the related art, the variable-temperature compartment 1 usually only has 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 compartment 1. It is easy to cause some foods to be frozen while some other foods have not reached the preset target temperature, affecting the fresh-keeping effect.

[0097] It can be seen that the temperature control accuracy and temperature control uniformity of the variable-temperature compartment 1 need to be improved.

[0098] In view of the above situation, in order to improve the temperature control accuracy and temperature control uniformity of the variable-temperature compartment 1, the present application improves the structure of the refrigerator 1 and the temperature control method.

[0099] Among them, the structural improvement of the refrigerator 1 is described in combination with Figures 2-4 for explanation.

[0100] See Figures 2-4 , in the present application, the variable-temperature compartment 1 no longer only has one air inlet 11, but has at least two air inlets 11. And, in the present application, the adjusting mechanism 2 no longer only adjusts the opening and closing of the air inlet 11, but also adjusts the opening length of the air inlet 11 after it is opened.

[0101] Since the number of air inlets 11 increases, the dispersed entry of cold air can be achieved to prevent the over - concentration of 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 others have not reached the preset target temperature", which is conducive to improving the fresh - keeping effect of the variable - temperature chamber 1.

[0102] Moreover, since the adjusting mechanism 2 can adjust the opening length of the air inlets 11 and regulate the opening and closing state and the opening length after opening of the air inlets 11, 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 fresh - keeping effect of the variable - temperature chamber 1.

[0103] It can be seen that by constructing the variable - temperature chamber 1 to have at least two air inlets 11 and constructing the adjusting mechanism 2 to adjust the opening length of the air inlets 11, the temperature control accuracy and temperature control uniformity of the variable - temperature chamber 1 can be effectively improved, thereby improving the fresh - keeping effect of the variable - temperature chamber 1.

[0104] Continue to refer to Figures 2-4 In some embodiments, the adjusting mechanism 2 adjusts the opening lengths of at least two air inlets 11 of the variable - temperature chamber 1. At this time, the opening lengths of at least two air inlets 11 can be adjusted by the same adjusting mechanism 2, with a simpler structure and more convenient control.

[0105] As an example, refer to Figures 2-4 The variable - temperature chamber 1 has two air inlets 11 arranged side by side along the first direction X, and the adjusting mechanism 2 adjusts the opening lengths of these two air inlets 11 arranged side by side along the first direction X.

[0106] In the above setting, the two air inlets 11 arranged side by side along the first direction X can perform 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 more dispersedly in the first direction X, avoiding the over - concentration of cold air caused by single - point air supply and affecting 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 adjusting mechanism 2, with a relatively simple structure. At the same time, the adjusting mechanism 2 not only adjusts the opening and closing of the corresponding two air inlets 11, but also adjusts the opening length after the corresponding two air inlets 11 are opened, which is beneficial to improving the temperature control accuracy.

[0107] It can be seen that setting two air inlets 11 arranged side by side along the first direction X and setting the adjusting mechanism 2 to adjust the opening lengths of the corresponding two air inlets 11 can improve the temperature control uniformity and temperature control accuracy of the variable - temperature chamber 1 based on a relatively simple structure and achieve a more precise temperature control process for the variable - temperature chamber 1.

[0108] In order to enable the adjusting mechanism 2 to adjust the opening lengths of the two air inlets 11 arranged side by side along the first direction X, refer toFigures 3-4 In some embodiments, the adjusting mechanism 2 includes a power mechanism 21, a transmission mechanism 22, and two adjusting members 23. The two adjusting members 23 are located between two air inlets 11 arranged side by side along the first direction X. The power mechanism 21 is drivingly connected to both of the two adjusting 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 adjusting members 23 to move in opposite directions along the first direction X.

[0109] Based on the above settings, only by starting the power mechanism 21, the two adjusting members 23 can move in opposite directions along the first direction X synchronously, change the shielding length of the two air inlets 11 arranged side by side along the first direction X, and realize the synchronous adjustment of the opening lengths of the corresponding two air inlets 11. This is simple and convenient. Moreover, it is convenient to realize the 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.

[0110] Specifically, referring to Figure 3 and Figure 4 In some embodiments, the power mechanism 21 includes a motor 24. In this way, the adjusting mechanism 2 is an electric adjusting mechanism, which can realize the electric adjustment of the opening size of the air inlet 11, with a simple structure and convenient control. During specific operation, only by controlling the rotation direction and the number of rotation turns of the motor 24, the change trend (increase or decrease) and the change degree of the opening of the air inlet 11 can be adjusted, which is simple and convenient.

[0111] In addition, referring to Figures 3-4 In order to realize the synchronous linear adjustment of the opening lengths of the two air inlets 11 arranged side by side along the first direction X, in some embodiments, racks 281 are provided on both of the two adjusting members 23. The racks 281 on the two adjusting members 23 both extend along the first direction X and are arranged at intervals along the second direction Y perpendicular to the first direction X. 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, so as 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. Among them, from Figures 2-4 it can be known 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 dimension of the air inlet 11 in the first direction X. Correspondingly, the opening length of the air inlet 11 is the opening dimension of the air inlet 11 in the first direction X. When the air inlet 11 is arranged on the air duct mask 12, the adjusting mechanism 2 can also be arranged on the air duct mask 12.

[0112] 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 reversely along the first direction X. The structure is simple and the adjustment accuracy is high, which is beneficial to more precisely linearly adjust the opening lengths of the two air inlets 11, and realize more accurate adjustment and control of the temperature of the variable temperature chamber 1.

[0113] Specifically, referring to Figure 3 and Figure 4 , in some embodiments, the transmission mechanism 22 not only includes the first gear 26, but also includes 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. 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 sequence. When the power mechanism 21 is started, the power can be transmitted to the second gear 27 via the screw 25, and the second gear 27 drives the coaxially arranged first gear 26 to rotate, so that the first gear 26 can, during the rotation process, drive the two adjusting members 23 to move reversely along the first direction X based on the meshing relationship with the racks 281 on the two adjusting members 23, realizing synchronous linear adjustment of the opening sizes of the two air inlets 11 and precisely adjusting the temperature of the variable temperature chamber 1.

[0114] In addition, referring to Figure 3 and Figure 4 , in some embodiments, both of the two adjusting members 23 include a meshing portion 28 and a shielding portion 29 that are connected to each other. The rack 281 is arranged on the meshing portion 28. The shielding portions 29 of the two adjusting members 23 are located on the opposite sides of the first gear 26 along the first direction X and are respectively used to shield the two air inlets 11 to adjust the opening lengths of the two air inlets 11. Among them, as can be seen from Figure 3 , 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 that of the meshing portion 28, so that the adjusting member 23 is generally L-shaped.

[0115] Based on the above settings, when the first gear 26 rotates, the two racks 281 can drive the two shielding portions 29 to move reversely along the first direction X, approaching or departing from the two air inlets 11 synchronously, changing the shielding lengths of the two air inlets 11, and realizing synchronous linear adjustment of the opening lengths of the two air inlets 11. It is not only simple and convenient, but also has a compact layout.

[0116] To improve the moving smoothness of the two adjusting members 23, referring to 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 limiting role on 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. Among them, 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, from Figure 3 and Figure 4 it can be seen that in some embodiments, a guide rail 3 is respectively arranged 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 both of the two guide rails 3 can limit and guide the two adjusting members 23, the structure is more reliable, and the moving stability of the two adjusting members 23 is higher.

[0117] In addition, referring to Figure 3 , in some embodiments, the refrigerator 10 includes a displacement sensor 5, and the displacement sensor 5 detects the displacement of the adjusting member 23. In this way, it is convenient to timely and accurately obtain the moving displacement of the adjusting member 23, and then determine the adjustment situation of the opening size of the air inlet 11, providing data support for the adjustment process of the opening size of the air inlet 11. Among them, as Figure 3 shown, when the two adjusting members 23 move synchronously and in opposite directions along the first direction X, since the moving 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 moving displacements of the two adjusting members 23. Therefore, only one displacement sensor 5 can be equipped for the two adjusting members 23 to simplify the structure and reduce the cost.

[0118] In Figures 2-4 the illustrated embodiment, the variable temperature chamber 1 only has a set of two air inlets 11 arranged side by side along the first direction X. However, it should be noted that the structure of the refrigerator 10 is not limited thereto. For example, in some other embodiments not shown, the variable temperature chamber 1 can have at least two sets 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, an adjusting mechanism 2 can be respectively equipped for each group of air inlets 11 to adjust the opening sizes of the two air inlets 11 in each group of air inlets 11.

[0119] In addition, the refrigerator 10 of the foregoing embodiments may further include a temperature measuring member 4 that 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 control the temperature of the variable temperature chamber 1. Specifically, the temperature measuring member 4 may include a temperature sensor 41 and is disposed on the air duct mask 12, so that the temperature measuring member 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 member 4 may feedback the temperature detection result every preset time t to feedback the actual temperature of the variable temperature chamber 1 every time t, which is convenient to obtain the latest temperature of the variable temperature chamber 1 in time and realize a more accurate temperature control process.

[0120] Next, in combination with Figures 5-7 the temperature control method of the refrigerator 10 in the present application will be described.

[0121] See Figures 5-7 , in the present application, the temperature control method of the refrigerator 10 includes:

[0122] S100. Determine whether the variable temperature chamber 1 of the refrigerator 10 needs to execute a cooling mode or a heating mode;

[0123] S200. When the variable temperature chamber 1 needs to execute a cooling mode or a heating mode, start the adjusting mechanism 2 to adjust the opening lengths of the two air inlets 11 arranged side by side along the first direction X, so that the actual temperature of the variable temperature chamber 1 reaches a preset condition.

[0124] Since the adjusting mechanism 2 can synchronously and linearly adjust the opening lengths of the two air inlets 11 arranged side by side along the first direction X, the temperature control accuracy of the variable temperature chamber 1 can be effectively improved.

[0125] Among them, 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 a cooling mode or a heating mode in step S100 includes:

[0126] According to the size relationship between the preset target temperature T s of the variable temperature chamber 1 and the current actual temperature T X , determine whether the variable temperature chamber 1 needs to execute a cooling mode or a heating mode.

[0127] Specifically, in some embodiments, according to the size relationship between the preset target temperature T s of the variable temperature chamber 1 and the current actual temperature T X , determining whether the variable temperature chamber 1 needs to execute a cooling mode or a heating mode includes:

[0128] When the current actual temperature T XWhen it 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;

[0129] 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.

[0130] Among them, the preset target temperature T of the variable temperature chamber 1 s and the current actual temperature T of the variable temperature chamber 1 X The magnitude relationship between them can reflect the high and low situation of the actual temperature and the preset target temperature T of the variable temperature chamber 1 at the beginning of regulation. Therefore, it can be used as a basis for judging whether to execute the heating and cooling modes. Specifically, when the current actual temperature T of the variable temperature chamber 1 s is greater than the preset target temperature T of the variable temperature chamber 1 X that is, when T s >T X >T s (that is, T X -T s >0), it indicates that at the beginning of regulation, the current actual temperature T of the variable temperature chamber 1 X is higher than the preset target temperature T of the variable temperature chamber 1 s and cooling is required. 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 chamber 1 X is less than the preset target temperature T of the variable temperature chamber 1 s that is, when T X <T s (that is, T X -T s <0), it indicates that at the beginning of regulation, the current actual temperature T of the variable temperature chamber 1 X is lower than the preset target temperature T of the variable temperature chamber 1 s and heating is required. Therefore, it is determined that the heating mode needs to be executed.

[0131] See Figure 6 and Figure 7 , in some embodiments, the preset conditions in step S200 include:

[0132] The absolute difference between the next actual temperature T of the variable temperature chamber 1 X+1 and the set object temperature T s is less than or equal to the first value, that is, |T X+1 -T s |≤ the first value.

[0133] Among them, the first value is a positive number, which can be denoted as a, corresponding to the actual temperature of the variable temperature chamber 1 and the set object temperature T sThe allowable deviation value can be specifically preset according to the actual situation. The preset conditions are set to include |T X+1 -T s | ≤ the first value, which can enable the temperature of the variable temperature chamber 1 to be within the allowable error range after fine adjustment, and achieve a more accurate temperature control process.

[0134] Further, referring to Figure 6 and Figure 7 , in some embodiments, the preset conditions in step S200 further include:

[0135] The absolute difference between the next actual temperature T X+1 and the previous actual temperature T X of the variable temperature chamber 1 is less than or equal to the second value, that is, |T X+1 -T X | ≤ the second value.

[0136] Among them, the second value is a positive number, which can be denoted as b, corresponding to the allowable deviation value between any two adjacent actual temperatures of the obtained variable temperature chamber 1, and can be specifically preset according to the actual situation. The preset conditions are set to further include |T X+1 -T X | ≤ the second value, which can enable the temperature of the variable temperature chamber 1 to not only have a deviation within the allowable range from the set object temperature T s , but also the temperatures at different times of the variable temperature chamber 1 are within the allowable range, and will not fluctuate too much. Therefore, a more stable and accurate temperature control process can be achieved.

[0137] Specifically, in some embodiments, the second value is less 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 another example, in some other embodiments, the first value a is 1 and the second value b is 0.5. In this way, the fluctuation between the temperatures at different times of the variable temperature chamber 1 can be controlled to be less than the deviation between the temperature of the variable temperature chamber 1 and the set object temperature T s , thereby further improving the stability and accuracy of the temperature of the variable temperature chamber 1, and enabling the temperature of the variable temperature chamber 1 to be more stably maintained near the set object temperature T s , and achieving a better fresh-keeping effect.

[0138] In addition, referring to Figure 6 and Figure 7 , in some embodiments, adjusting the opening lengths of two air inlets 11 arranged side by side in the first direction X in step S200 to make the actual temperature of the variable temperature chamber 1 reach the preset conditions includes:

[0139] 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 TX+1 and the current actual temperature T X and the preset target temperature T s to adjust the opening length of the air inlet 11 according to the size relationship therebetween.

[0140] Based on the above steps, when the variable temperature chamber 1 needs to execute the cooling mode or the heating mode in the present application, first, the air inlet 11 of the variable temperature chamber 1 is roughly adjusted so that the opening length of the variable temperature chamber 1 becomes the initial value S, and then the opening length of the air inlet 11 is finely adjusted. During the fine adjustment process, the next actual temperature T of the variable temperature chamber 1 is comprehensively considered X+1 and the preset target temperature T s and the size relationship therebetween, as well as the next actual temperature T of the variable temperature chamber 1 X+1 and the current actual temperature T X therebetween. In this way, the real-time dynamic adjustment of the opening size of the air inlet 11 can be realized, 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 fresh-keeping effect of the variable temperature chamber 1.

[0141] Among them, since the rough adjustment is performed first and then the fine adjustment is performed, the fine adjustment process can be used to further correct the rough adjustment result. Therefore, 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) by single adjustment can be effectively solved, and it is more convenient to adjust the temperature of the variable temperature chamber 1 to the standard more precisely.

[0142] Moreover, since the size relationship between the next actual temperature T of the variable temperature chamber 1 X+1 and the preset target temperature T s can reflect whether the actual temperature of the variable temperature chamber 1 has reached the standard after each adjustment, and the size relationship between the next actual temperature T of the variable temperature chamber 1 X+1 and the current actual temperature T X can reflect the temperature change trend before and after each adjustment, and the size relationship between the next actual temperature T of the variable temperature chamber 1 X+1 and the preset target temperature T s and the size relationship between the next actual temperature T of the variable temperature chamber 1 X+1 and the current actual temperature T X together can comprehensively reflect the real-time change situation and the reaching-standard situation of the temperature of the variable temperature chamber 1, and realize a more accurate reflection of the actual temperature situation of the variable temperature chamber 1. Therefore, during the fine adjustment process, the size relationship between the next actual temperature T of the variable temperature chamber 1 X+1 and the preset target temperature T s and the size relationship between the next actual temperature T of the variable temperature chamber 1 X+1 and the current actual temperature T X therebetween are considered, which is beneficial to realizing a more accurate fine adjustment process, thereby further improving the temperature control accuracy of the variable temperature chamber 1.

[0143] It can be seen that the above steps can first coarsely and then finely adjust the opening size of the air inlet 11, and dynamically adjust it in real time by comprehensively considering the real-time change trend of the temperature in the variable temperature chamber and whether it meets the standard, effectively improving the temperature control accuracy of the variable temperature chamber 1. For the convenience of description, the above-mentioned opening length adjustment steps of first coarse adjustment and then fine adjustment are called hierarchical adjustment steps.

[0144] Among them, referring to Figure 6 and Figure 7 , in some embodiments, the initial value S in the hierarchical adjustment step is S = {[(ΔT·L) / (T G -T D )]·K1 + K2L}, 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, and both K1 and K2 are coefficients greater than 0 and less than 1, and K2L is the opening length of the air inlet 11 corresponding to the upper limit temperature T G .

[0145] Based on the above calculation formula of the initial value S, the initial value S is determined by the upper limit temperature T G , the lower limit temperature T D , the temperature difference ΔT between the upper limit temperature T G and the preset target temperature T s , the full opening length L of the air inlet 11, the opening length K2L of the air inlet 11 corresponding to the upper limit temperature T G , and K1 together. In this way, a more accurate and feasible coarse adjustment process can be realized, which is beneficial to reducing the difficulty of the subsequent fine adjustment process and improving the temperature control accuracy.

[0146] Among them, (ΔT·L) / (T G -T D ) corresponds to the theoretical opening length of the air inlet 11 required to reach the preset target temperature T s , which can make the initial value S have a certain corresponding relationship with the preset target temperature T s , which is relatively accurate. However, the initial value S is not directly equal to (ΔT·L) / (T G -T D ), but also adds K2L and K1. The main reason is to make the minimum opening length of the coarse adjustment at least meet the requirements of the upper limit temperature T G , and to prevent the calculated result of the initial value S from being greater than the full opening length L of the air inlet 11.

[0147] Specifically, K2L is set in the above calculation formula of the initial value S mainly to make the minimum opening length of the coarse adjustment at least meet the requirements of the upper limit temperature TG requirements to ensure that the temperature of the coarse-tuning variable temperature chamber can be maintained at least at the upper limit temperature T G . If K2L is not added, then if the preset target temperature T s is equal to the upper limit temperature T G , then (ΔT·L) / (T G -T D ) is 0, and the initial value S is 0, which will cause the adjustment mechanism 2 not to act, which is unreasonable. After adding K2L, even if the preset target temperature T s is equal to the upper limit temperature T G , the adjustment mechanism 2 will also act and adjust the air inlet 11 to the open length corresponding to the upper limit temperature T G , so it is more reasonable and feasible.

[0148] In addition, K1 is set in the above formula for calculating the initial value S mainly to prevent the impossible situation that the calculation result of the initial value S is greater than the fully open length L of the air inlet 11. If (ΔT·L) / (T G -T D ) is not multiplied by K1, then when the preset target temperature T s is equal to the lower limit temperature T D , (ΔT·L) / (T G -T D ) is equal to L, and adding K2L, the initial value S is greater than L, which is unreasonable. After (ΔT·L) / (T G -T D ) is multiplied by K1, even if the preset target temperature T s is equal to the lower limit temperature T D , the initial value S can be made not greater than L, but less than or equal to L, so it is more reasonable and feasible.

[0149] It can be seen that based on the formula S = {[(ΔT·L) / (T G -T D )]·K1 + K2L}, a more reasonable and more convenient initial value S for adjusting the temperature of the variable temperature chamber to the preset target temperature T s can be obtained, so as to achieve a coarse-tuning process that better meets the actual needs, which is beneficial to reducing the difficulty of fine-tuning and improving the temperature control accuracy.

[0150] In addition, referring to Figure 6 and Figure 7 , in some embodiments, adjusting the size of the air inlet 11 of the variable temperature chamber 1 to the initial value S in the step of hierarchical adjustment includes:

[0151] Closing the air inlet 11 of the variable temperature chamber 1 to make the open length of the air inlet 11 be 0;

[0152] Increase the open length of the air inlet 11 from 0 to the initial value S.

[0153] The above-mentioned coarse adjustment method is an adjustment method of first resetting to zero and then adjusting to the initial value S. It is relatively simple and also convenient to accurately adjust the open length of the air inlet 11 to the required initial value S. This coarse adjustment method of first resetting to zero and then adjusting to the initial value S is especially applicable to the situation of restarting after power failure and the preset target temperature T s is reset.

[0154] To facilitate adjusting the temperature of the variable temperature chamber 1 to reach the preset conditions, refer to Figure 6 and Figure 7 , in the foregoing embodiments, according to the next actual temperature T X+1 of the variable temperature chamber 1 and the current actual temperature T X and the preset target temperature T s between the size relationship, adjusting the open length of the air inlet 11 may include:

[0155] According to the next actual temperature T X+1 of the variable temperature chamber 1 and the current actual temperature T X and the preset target temperature T s between the size relationship, at least two-stage adjustment is performed on the open length of the air inlet 11.

[0156] The above steps make the fine adjustment process include at least two-stage adjustment. Together with the coarse adjustment process, these at least two-stage adjustments make the entire hierarchical adjustment step include at least three-stage adjustment. In this way, the hierarchical adjustment step can perform multi-stage adjustment on the temperature of the variable temperature chamber 1. Since each stage can adjust and correct the previous stage, and each stage of fine adjustment comprehensively considers the real-time temperature fluctuation situation and the reaching standard situation, it is beneficial to achieve a more accurate temperature adjustment process.

[0157] Specifically, refer to Figure 6 and Figure 7 , in some embodiments, the above-mentioned according to the next actual temperature T X+1 of the variable temperature chamber 1 and the current actual temperature T X and the preset target temperature T s between the size relationship, at least two-stage adjustment is performed on the open length of the air inlet 11, including:

[0158] According to the next actual temperature T X+1 of the variable temperature chamber 1 and the current actual temperature T X and the preset target temperature T s between the size relationship, the first-stage adjustment and the second-stage adjustment are performed on the open length of the air inlet 11.

[0159] The above steps enable the fine-tuning process to 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 the standard based on fewer adjustment links.

[0160] Among them, as an example, refer to Figure 6 and Figure 7 , the first-level adjustment of the opening length of the air inlet 11 according to the size relationship between the next actual temperature T X+1 of the variable temperature chamber 1 and the current actual temperature T X and the preset target temperature T s of the variable temperature chamber 1 includes:

[0161] When the variable temperature chamber 1 needs to execute the cooling mode, judge whether the next actual temperature T X+1 of the variable temperature chamber 1 is less than the current actual temperature T X of the variable temperature chamber 1, and whether the next actual temperature T X+1 of the variable temperature chamber 1 is greater than the preset target temperature T s of the variable temperature chamber 1, and when the next actual temperature T X+1 of the variable temperature chamber 1 is less than the current actual temperature T X of the variable temperature chamber 1, and the next actual temperature T X+1 of the variable temperature chamber 1 is greater than the preset target temperature T s (that is, T X+1 < T X (T X+1 - T X < 0), and T X+1 > T s (T X+1 - T s > 0)), adjust the opening length of the air inlet 11 at least once, and each time the opening length of the air inlet 11 is reduced by (1 / 2) X {[(ΔT.L) / (T G - T D )].K1}, until the next actual temperature T X+1 of the variable temperature chamber 1 is no longer less than the current actual temperature T X of the variable temperature chamber 1, and the next actual temperature T X+1 of the variable temperature chamber 1 is no longer less than the preset target temperature T s of the variable temperature chamber 1, where X is incremented by 1 each time the next adjustment is made; and / or,

[0162] When the variable temperature chamber 1 needs to execute the heating mode, judge whether the next actual temperature T X+1 of the variable temperature chamber 1 is less than the current actual temperature T X of the variable temperature chamber 1, and whether the next actual temperature T X+1 of the variable temperature chamber 1 is less than the preset target temperature Ts 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 (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 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 )].K1}, 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.

[0163] The above steps enable the first - stage adjustment to be a cyclic iterative adjustment process regardless of whether it is a cooling mode or a heating mode. And each time an iterative adjustment is made, the opening length of the air inlet 11 changes to 1 / 2 of the previous time. In this way, a more refined first - stage adjustment process can be achieved, facilitating the adjustment to obtain the best opening size through fine searching and improving the temperature control accuracy.

[0164] Among them, the iterative conditions in the cooling mode and the heating mode during the first - stage adjustment are different.

[0165] Specifically, the iterative condition in the cooling mode during the first - stage adjustment is that T X+1 - T X < 0, and T X+1 - T s > 0. Only when T X+1 - T X < 0, and T X+1 - T s > 0, will each adjustment in the first - stage adjustment process in the cooling mode be carried out. In the cooling mode, T X+1 - T X < 0, and T X+1 - T s > 0 means that the current temperature is decreasing and has not yet reached the preset target temperature T s, in this case, each time the opening length of the air inlet 11 is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1}, the opening length of the air inlet 11 can be gradually reduced while maintaining the cooling trend, slowing down the cooling speed, and preventing the items in the variable temperature chamber 1 from being frostbitten or damaged due to excessive cooling. It can be seen that by using the method in the above steps for the first-level adjustment in the cooling mode, a safer and more refined first-level cooling fine-tuning process can be achieved.

[0166] Different from the cooling mode, the iteration condition for the first-level adjustment in the heating mode is T X+1 -T X <0, and T X+1 -T s <0. Only when T X+1 -T X <0, and T X+1 -T s <0, will each adjustment in the first-level adjustment process in the heating mode be carried out. In the heating mode, T X+1 -T X <0, and T X+1 -T s <0 means that the current cooling is in progress and the preset target temperature T s has not been reached yet. In this case, each time the opening length of the air inlet 11 is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1}, 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 changed to heating so as to heat up to the preset target temperature T s . It can be seen that by using the method in the above steps for the first-level adjustment in the heating mode, a relatively refined first-level heating fine-tuning process can be achieved.

[0167] Based on the foregoing first-level cooling adjustment process, further, referring to Figure 6 , in some embodiments, when the variable temperature chamber 1 needs to execute the cooling mode, according to the size relationship between the next actual temperature T X+1 of the variable temperature chamber 1 and the current 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:

[0168] When the next actual temperature T X+1 of the variable temperature chamber 1 is no longer less than the current actual temperature T X of the variable temperature chamber 1, and the next actual temperature TX+1 is no longer greater than the preset target temperature T of the variable temperature chamber 1 s After that, determine the next actual temperature T of the variable temperature chamber 1 X+1 Is it 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 it less than or equal to the preset target temperature T of the variable temperature chamber 1 s ;

[0169] When 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 (that is, 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), adjust the opening length of the air inlet 11 at least once, and increase the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1} until the actual temperature of the variable temperature chamber 1 reaches the preset condition, where X is incremented by 1 before each adjustment;

[0170] 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 or equal to the preset target temperature T of the variable temperature chamber 1 s (that is, 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), adjust the opening length of the air inlet 11 at least once, and decrease the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1} until the actual temperature of the variable temperature chamber 1 reaches the preset condition, where X is incremented by 1 before each adjustment.

[0171] The second-stage adjustment process in the above cooling mode is started when the iteration condition of the first-stage adjustment process in the above cooling mode is not satisfied, and, according to T X+1 and T X and between T X+1 and T s For two different cases of the magnitude relationship, two cyclic iterative adjustments are performed, and the open length of the air inlet 11 is changed to 1 / 2 of the previous iterative round in each iterative round. In this way, a more refined second-stage adjustment process in the cooling mode can be realized, which is convenient for adjusting to obtain the best opening size through fine search and improving the temperature control accuracy.

[0172] Among them, in the cooling mode, T X+1 -T X ≥0, and T X+1 -T s >0, indicating that the reduction of the opening size in the previous first-stage cooling fine-tuning process was a bit excessive, resulting in the current situation of heating up, and the temperature of the variable temperature chamber 1 has exceeded the preset target temperature T s . In this case, it is necessary to change the opening of the air inlet 11 to a larger size to increase the cold air volume and lower the temperature. Therefore, each time the open length of the air inlet 11 is increased by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1} iterative adjustment, and whether the preset condition is reached 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 increasing the open length of the air inlet 11 by 1 / 2 of the previous 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 cold air intake.

[0173] 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-stage cooling fine-tuning, although the variable temperature chamber 1 is still cooling, the temperature of the variable temperature chamber 1 has dropped below the preset target temperature T s . In this case, it is necessary to reduce the opening of the air inlet 11 to reduce the cold air volume and increase the temperature. Therefore, each time the open length of the air inlet 11 is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D)]. Iterative adjustment of.K1}, and using whether the preset condition is reached 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 previous 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] It can be seen that the first-stage adjustment and the second-stage adjustment in the above cooling mode can correct the rough adjustment result in stages and achieve a more refined variable temperature chamber cooling adjustment process.

[0175] In addition, based on the aforementioned first-stage heating adjustment process, further, refer to Figure 7 , in some embodiments, when the variable temperature chamber 1 needs to execute the heating mode, according to the next actual temperature T X+1 of the variable temperature chamber 1 and the current actual temperature T X and the preset target temperature T s therebetween, the second-stage adjustment of the opening length of the air inlet 11 includes:

[0176] When the next actual temperature T X+1 of the variable temperature chamber 1 is no longer less than the current actual temperature T X of the variable temperature chamber 1, and the next actual temperature T X+1 of the variable temperature chamber 1 is no longer less than the preset target temperature T s of the variable temperature chamber 1, determine whether the next actual temperature T X+1 of the variable temperature chamber 1 is greater than or equal to the current actual temperature T X of the variable temperature chamber 1, and whether the next actual temperature T X+1 of the variable temperature chamber 1 is greater than or equal to the preset target temperature T s of the variable temperature chamber 1;

[0177] When the next actual temperature T X+1 of the variable temperature chamber 1 is greater than or equal to the current actual temperature T X of the variable temperature chamber 1, and the next actual temperature T X+1 of the variable temperature chamber 1 is less than the preset target temperature T s of the variable temperature chamber 1 (that is, 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), adjust the opening length of the air inlet 11 at least once, and each time of adjustment, reduce the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -TD )].K1}, until the actual temperature of the variable temperature chamber 1 reaches the preset condition, where X is incremented by 1 before each adjustment;

[0178] 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 (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 )].K1}, until the actual temperature of the variable temperature chamber 1 reaches the preset condition, where X is incremented by 1 before each adjustment.

[0179] The second-level adjustment process in the above heating mode is started when the iteration condition in the first-level adjustment process in the above heating mode is not satisfied, and, according to the two different size relationships between T X+1 and T X and between T X+1 and T s , two cyclic iterative adjustments are performed, and the opening length of the air inlet 11 changes by 1 / 2 of the previous iteration round in each iteration round. In this way, a more refined second-level adjustment process in the heating mode can be achieved, facilitating the adjustment of the best opening size through fine searching and improving the temperature control accuracy.

[0180] Among them, in the heating mode, T X+1 -T X ≥0, and T X+1 -T s <0 indicates that after the first-level heating fine adjustment, the variable temperature chamber 1 has started to heat up but has not yet risen 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 cold air volume and increase the temperature. Therefore, each time the opening length of the air inlet 11 is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D)].Iterative adjustment of K1}, and use whether the preset condition is reached as the end condition of the corresponding iterative adjustment process. In this way, by reducing the opening length of the air inlet 11 by 1 / 2 of the previous adjustment amount each time, the adjustment result of the first-stage fine temperature increase process can be gradually corrected, so that the temperature of the variable temperature chamber 1 can be gradually increased to the standard by gradually reducing the cold air intake volume.

[0181] At the same time, in the heating mode, T X+1 -T X ≥0, and T X+1 -T s ≥0 indicates that after the first-stage fine temperature increase, the variable temperature chamber 1 is still heating up, and the temperature of the 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 cold air volume and lower the temperature. Therefore, each time the opening length of the air inlet 11 is increased by (1 / 2) X {[(ΔT.L) / (T G -T D )].Iterative adjustment of K1}, and use whether the preset condition is reached as the end condition of the corresponding iterative adjustment process. In this way, by increasing the opening length of the air inlet 11 by 1 / 2 of the previous adjustment amount each time, the adjustment result of the first-stage fine temperature increase process can be gradually corrected, so that the temperature of the variable temperature chamber 1 can be gradually decreased to the standard by gradually increasing the cold air intake volume.

[0182] It can be seen that the first-stage adjustment and the second-stage adjustment in the above heating mode can correct the rough adjustment result in stages and realize a more refined temperature increase adjustment process for the variable temperature chamber.

[0183] After executing step S200, the temperature of the variable temperature chamber 1 can reach the preset condition, realizing a relatively accurate adjustment of the temperature of the variable temperature chamber 1.

[0184] 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 includes:

[0185] Obtain the actual temperature of the variable temperature chamber 1 at intervals of time t, and judge whether the actual temperature of the variable temperature chamber 1 no longer meets the preset condition according to the size relationship between the next actual temperature T X+1 of the variable temperature chamber 1 and the preset target temperature T s ;

[0186] When the actual temperature of the variable temperature chamber 1 no longer meets the preset condition, adjust the opening length of the air inlet 11 to make the actual temperature of the variable temperature chamber 1 return to the state where the preset condition is met.

[0187] After the above steps, the temperature of the variable temperature chamber 1 can be further monitored, adjusted, and corrected after step S200, which is conducive to maintaining the temperature of the variable temperature chamber 1 more stably at a state that meets the preset conditions, and preventing the balance state of the variable temperature chamber 1 from being damaged due to frequent opening and closing of the refrigerator door and entry of external air. This 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 balance state corresponding to the preset conditions. The steps after step S200 can be referred to as dynamic adjustment steps.

[0188] Specifically, referring to Figure 6 and Figure 7 , in some embodiments, in the dynamic adjustment step, according to the size relationship between the next actual temperature T X+1 of the variable temperature chamber 1 and the preset target temperature T s , determining whether the actual temperature of the variable temperature chamber 1 no longer meets the preset conditions includes:

[0189] Determining whether the absolute difference between the next actual temperature T X+1 of the variable temperature chamber 1 and the preset target temperature T s is greater than the first value;

[0190] When the absolute difference between the next actual temperature T X+1 of the variable temperature chamber 1 and the preset target temperature T s is greater than the first value (i.e., |T X+1 -T s |> the first value), it is determined that the actual temperature of the variable temperature chamber 1 no longer meets the preset conditions.

[0191] Wherein, |T X+1 -T s |> the first value indicates that the difference between the actual temperature of the variable temperature chamber 1 and the preset target temperature T s 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.

[0192] Furthermore, continuing to refer to Figure 6 and Figure 7 , in some embodiments, in the dynamic adjustment step, when the actual temperature of the variable temperature chamber 1 no longer meets the preset conditions, adjusting the opening length of the air inlet 11 includes:

[0193] When the difference between the next actual temperature T X+1 of the variable temperature chamber 1 and the preset target temperature T s is greater than the first value (i.e., 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 )].K1}; and / or,

[0194] At the next actual temperature T of the variable temperature chamber 1 X+1 and the preset target temperature T s The negative difference is less than the first value (i.e., T X+1 -T s < negative first value, that is, T X+1 -T s <-a), the opening length of the air inlet 11 is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1}.

[0195] Wherein, regardless of the heating mode or the 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 Too much, it is necessary to increase the cooling capacity and lower the temperature. Therefore, the opening length of the air inlet 11 can be adjusted to a larger value to return the temperature of the variable temperature chamber 1 to the standard state. In this case, each time the opening length of the air inlet 11 is increased by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1}, the temperature of the variable temperature chamber 1 can be reduced more precisely, so that the temperature of the variable temperature chamber 1 can be maintained more accurately under the preset conditions.

[0196] In addition, regardless of the heating mode or the 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 Too much, it is necessary to reduce the cooling capacity and raise the temperature. Therefore, the opening length of the air inlet 11 can be adjusted to a smaller value to return the temperature of the variable temperature chamber 1 to the standard state. In this case, each time the opening length of the air inlet 11 is reduced by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1}, the temperature of the variable temperature chamber 1 can be increased more precisely, so that the temperature of the variable temperature chamber 1 can be maintained more accurately under the preset conditions.

[0197] Next, the temperature adjustment process shown in Figure 6 and Figure 7 will be further described.

[0198] Figure 6 and Figure 7Shows the flow of the temperature control method in the cooling mode and the heating mode respectively in an embodiment.

[0199] As Figure 6 and Figure 7 shown, in this embodiment, the temperature control method includes step S100, step S200 and a dynamic adjustment step, and step S200 includes a hierarchical adjustment step, and the hierarchical adjustment step includes a coarse adjustment, a first-level adjustment and a second-level adjustment process.

[0200] Specifically, first set T s , and detect the temperature of the variable temperature chamber 1, and then execute step S100. According to the magnitude relationship between T X and T s , judge whether to execute the cooling mode or the heating mode. Among them, if T X -T s > 0, then execute the cooling mode; if T X -T s < 0, then execute the heating mode.

[0201] After the cooling mode and the heating mode are determined, then execute step S200, first execute the coarse adjustment process of step S200, and then sequentially perform the first-level adjustment and the second-level adjustment of step S200.

[0202] Among them, when performing the coarse adjustment process, first make the adjustment mechanism 2 corresponding to the air inlet 11 return to its original position, change the opening length of the air inlet 11 to 0, and then calculate ΔT = T G -T s , and substitute the calculation result into the formula S = {[(ΔT·L) / (T G -T D )]·K1 + K2L}, calculate the initial value S, and use the calculated value of S as the opening length value required for the first action of the adjustment mechanism 2, and make the adjustment mechanism 2 act accordingly to adjust the opening length of the air inlet 11 to S = {[(ΔT·L) / (T G -T D )]·K1 + K2L}, and complete the corresponding coarse adjustment process.

[0203] After the coarse adjustment process, enter the first-level adjustment process. Specifically, after the first action of the adjustment mechanism 2 is completed, the latest temperature data of the variable temperature chamber 1 is fed back every time t, that is, T X+1 (T X+1 is the latest temperature of the variable temperature chamber after a time interval t compared with T X ), and each detected T X+1 is substituted into the judgment condition T X+1 -T X < 0 and T X+1 -Ts > 0 or the judgment condition T in the heating mode for the first - stage regulation X+1 -T X <0 and T X+1 -T s <0. If the condition is met, the adjusting mechanism 2 acts to reduce the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1}, where (1 / 2) in the formula X is such that each time the adjusting mechanism 2 acts when the condition is met, it is 1 / 2 of the previous time, achieving the purpose of finely finding the best opening size. After each action of the adjusting mechanism 2, X is incremented by 1 to execute the loop until the data no longer meets the condition, completing the first - stage regulation process.

[0204] After the first - stage regulation process, the second - stage regulation process is entered. In the second - stage regulation process, whether it is the heating mode or the cooling mode, it is divided into two cases. Among them, the two cases 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 these two cases, X is incremented by 1, and then the actions of increasing the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1} and reducing the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1} are respectively executed. The two cases 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 these two cases, X is incremented by 1, and then the actions of reducing the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1} and increasing the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D)].K1} There are two actions. In each of the two situations of the heating mode and the cooling mode, after the adjustment mechanism 2 performs an action each time, the latest T is fed back every time interval t 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) for judgment. If not met, X is incremented by 1 and the loop continues to perform successive corrections. If met, both modes enter the dynamic adjustment process.

[0205] After entering the dynamic adjustment process, the latest T is continuously fed back every time interval t X+1 , and by T X+1 -T s <-1.5 and T X+1 -T s >1.5 to determine whether to increase the opening length of the air inlet 11 by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1}, or decrease it by (1 / 2) X {[(ΔT.L) / (T G -T D )].K1} to further correct the temperature difference of the secondary adjustment, or correct the change in the temperature inside the variable temperature chamber caused by the change in the external environmental temperature T0 or humidity W. By continuously retrieving and correcting the temperature of the variable temperature chamber and dynamically adjusting the factors that disrupt the balance, the best balance state is achieved, so that the food is always kept in a constant temperature environment.

[0206] 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, realize a stable and accurate temperature adjustment process for the variable temperature chamber, enable the variable temperature chamber 1 to operate at a constant temperature, and effectively preserve freshness.

[0207] 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.

[0208] See Figure 8, in an embodiment of the present application, the controller 6 includes a memory 61 and a processor 62 coupled to the memory 61. The processor 62 is configured to execute the temperature control method according to any embodiment of the present application based on the instructions stored in the memory 61. The controller 6 can be signal-connected to the adjustment mechanism 2 (such as the power mechanism 21, specifically, such as the motor 24), the temperature measuring element 4, and the displacement sensor 5, so as to control the operation of the adjustment mechanism 2 according to the detection results of the temperature measuring element 4 and the displacement sensor 5, and implement the corresponding temperature control process.

[0209] Specifically, as Figure 8 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 according to the embodiments 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 the bus 64.

[0210] The memory 61 can be a high-speed RAM memory or a non-volatile memory, etc. The memory 61 can also be a memory array. The memory 61 may also be partitioned, and the blocks can be combined into a virtual volume according to certain rules. The processor 62 can 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.

[0211] In addition, the present application also provides a computer-readable storage medium. The corresponding computer-readable storage medium stores computer instructions, and the computer instructions are executed by the processor to perform the temperature control method according to any embodiment of the present application.

[0212] The above are only exemplary embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A refrigerator (10), comprising: A variable temperature compartment (1), the variable temperature compartment (1) including two air inlets (11), the two air inlets (11) being arranged side by side along a first direction (X); An adjusting mechanism (2), including a power mechanism (21), a transmission mechanism (22), and two adjusting members (23), the two adjusting members (23) being disposed between the two air inlets (11) arranged side by side along the first direction (X), the power mechanism (21) being drivingly connected to the two adjusting members (23) through the transmission mechanism (22) to drive the two adjusting members (23) to move in opposite directions along the first direction (X) so as to adjust the opening length of the two air inlets (11) arranged side by side along the first direction (X); A temperature measuring member (4), located within the variable temperature compartment (1) to detect the actual temperature of the variable temperature compartment (1); and A controller (6), when the variable temperature chamber (1) needs to execute a cooling mode or a heating mode, starts the adjusting mechanism (2) to adjust the opening length of two air inlets (11) arranged side by side along the first direction (X) to an initial value , then obtains the actual temperature of the variable temperature chamber (1) at intervals of time t, and based on the next actual temperature of the variable temperature chamber (1) and the current actual temperature as well as a preset target temperature , performs at least two-stage adjustments including a first-stage adjustment and a second-stage adjustment on the opening length of the two air inlets (11) arranged side by side along the first direction (X) so that the actual temperature of the variable temperature chamber (1) reaches a preset condition, wherein the first-stage adjustment is a cyclic iterative adjustment process, and each time of iterative adjustment makes the opening length of the air inlet (11) change by the previous time , and the preset condition includes that the absolute difference between the next actual temperature of the variable temperature chamber (1) and the preset target temperature is less than or equal to a first value.

2. The refrigerator (10) according to claim 1, characterized in that, Racks (281) are provided on the two adjusting members (23), the racks (281) on the two adjusting members (23) both 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) including a first gear (26), the first gear (26) being engaged between the racks (281) of the two adjusting members (23) and being 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).

3. The refrigerator (10) according to claim 2, characterized in that, The transmission mechanism (22) further includes a second gear (27) and a screw rod (25), the second gear (27) being coaxially arranged with the first gear (26) and being engaged with the screw rod (25), the screw rod (25) being drivingly connected to the power mechanism (21).

4. The refrigerator (10) according to claim 2, characterized in that, The two adjusting members (23) each include an engaging portion (28) and a shielding portion (29) connected to each other, the rack (281) being provided on the engaging portion (28), the shielding portions (29) of the two adjusting members (23) being located on opposite sides of the first gear (26) along the first direction (X) and respectively being used to shield the two air inlets (11) arranged side by side along the first direction (X) so as to adjust the opening length of the two air inlets (11) arranged side by side along the first direction (X).

5. The refrigerator (10) according to claim 4, characterized in that, The dimension of the shielding portion (29) along the second direction (Y) is greater than the dimension of the engaging portion (28) along the second direction (Y).

6. The refrigerator (10) according to any one of claims 1-5, characterized in that, The power mechanism (21) includes a motor (24).

7. The refrigerator (10) according to any one of claims 1-5, characterized in that, The refrigerator (10) includes a guide rail (3), the two adjusting members (23) being disposed on the guide rail (3) to move along the first direction (X) under the guidance of the guide rail (3).

8. The refrigerator (10) according to claim 7, characterized in that, The refrigerator (10) includes a displacement sensor (5), the displacement sensor (5) detecting the displacement of the adjusting member (23).

9. The refrigerator (10) according to any one of claims 1-5, characterized in that, The temperature measuring element (4) feeds back the actual temperature of the variable temperature chamber (1) every period of time.

10. A temperature control method for a refrigerator (10) according to any one of claims 1-9, 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), the adjustment mechanism (2) is started, and the open length of the two air inlets (11) arranged side by side along the first direction (X) is adjusted to the initial value , then the actual temperature of the variable temperature chamber (1) at every interval of time t is obtained, and according to the next actual temperature of the variable temperature chamber (1) and the current actual temperature as well as the preset target temperature , at least two-stage adjustments including a first-stage adjustment and a second-stage adjustment are performed on the open length of the two air inlets (11) arranged side by side along the first direction (X), so that the actual temperature of the variable temperature chamber (1) reaches the preset conditions, wherein the first-stage adjustment is a cyclic iterative adjustment process, and each time of iterative adjustment makes the open length of the air inlet (11) change by of the previous time, and the preset conditions include that the absolute difference between the next actual temperature of the variable temperature chamber (1) and the preset target temperature is less than or equal to the first value.

11. The temperature control method according to claim 10, wherein Determining whether the variable temperature chamber (1) needs to execute a cooling mode or a heating mode includes: According to the preset target temperature of the variable temperature chamber (1) and the current actual temperature to determine whether the variable temperature chamber (1) needs to execute a cooling mode or a heating mode.

12. The temperature control method according to claim 11, characterized in that, According to the preset target temperature of the variable temperature chamber (1) and the current actual temperature to determine whether the variable temperature chamber (1) needs to execute a cooling mode or a heating mode includes: At the current actual temperature of the variable temperature chamber (1) is greater than the preset target temperature of the variable temperature chamber (1) it is determined that the variable temperature chamber (1) needs to execute a cooling mode; At the current actual temperature of the variable temperature chamber (1) is less than the preset target temperature of the variable temperature chamber (1) , it is determined that the variable temperature chamber (1) needs to execute a heating mode.

13. The temperature control method according to claim 10, wherein The preset conditions further include: The next actual temperature of the variable temperature chamber (1) and the previous actual temperature The absolute difference between them is less than or equal to the second value.

14. The temperature control method according to claim 13, wherein The second value is less than the first value.

15. The temperature regulation method according to any one of claims 10-14, characterized in that, The initial value , where , is the upper limit temperature of the variable temperature chamber (1), is the lower limit temperature of the variable temperature chamber (1), is the length when the air inlet (11) is fully opened, and are both coefficients greater than 0 and less than 1, is the upper limit temperature corresponding to the opening length of the air inlet (11).

16. The temperature control method according to any one of claims 10-14, characterized in that, Adjust the size of the air inlet (11) of the variable temperature chamber (1) to the initial value including: Closing the air inlet (11) of the variable temperature chamber (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.

17. The temperature control method according to any one of claims 10-14, characterized in that, According to the next actual temperature of the variable temperature chamber (1) and the current actual temperature as well as the preset target temperature the first-level adjustment of the opening length of the air inlet (11) includes: When the variable temperature chamber (1) needs to execute the cooling mode, judge the next actual temperature of the variable temperature chamber (1) whether it is less than the current actual temperature of the variable temperature chamber (1) , and the next actual temperature of the variable temperature chamber (1) whether it is greater than the preset target temperature of the variable temperature chamber (1) , and when the next actual temperature of the variable temperature chamber (1) is less than the current actual temperature of the variable temperature chamber (1) , and the next actual temperature of the variable temperature chamber (1) is greater than the preset target temperature of the variable temperature chamber (1) , adjust the opening length of the air inlet (11) at least once, and reduce the opening length of the air inlet (11) each time , until the next actual temperature of the variable temperature chamber (1) is no longer less than the current actual temperature of the variable temperature chamber (1) , and the next actual temperature of the variable temperature chamber (1) is no longer less than the preset target temperature of the variable temperature chamber (1) , where add 1 when performing the next adjustment; and / or When the warming mode needs to be executed in the variable temperature chamber (1), determine the next actual temperature of the variable temperature chamber (1) whether it is less than the current actual temperature of the variable temperature chamber (1) , and whether the next actual temperature of the variable temperature chamber (1) is less than the preset target temperature of the variable temperature chamber (1) , and when the next actual temperature of the variable temperature chamber (1) is less than the current actual temperature of the variable temperature chamber (1) , and the next actual temperature of the variable temperature chamber (1) is less than the preset target temperature of the variable temperature chamber (1) , adjust the opening length of the air inlet (11) at least once, and reduce the opening length of the air inlet (11) each time , until the next actual temperature of the variable temperature chamber (1) is no longer less than the current actual temperature of the variable temperature chamber (1) , and the next actual temperature of the variable temperature chamber (1) is no longer less than the preset target temperature of the variable temperature chamber (1) , where add 1 when making the next adjustment; Wherein, , is the upper limit temperature of the variable temperature chamber (1), is the lower limit temperature of the variable temperature chamber (1), is the length when the air inlet (11) is fully opened, is a coefficient greater than 0 and less than 1.

18. The temperature control method according to claim 17, wherein When the temperature reduction mode needs to be executed in the variable temperature chamber (1), according to the next actual temperature of the variable temperature chamber (1) and the current actual temperature as well as the preset target temperature The second-level adjustment of the opening length of the air inlet (11) includes: When the next actual temperature of the variable temperature chamber (1) is no longer less than the current actual temperature of the variable temperature chamber (1) , and the next actual temperature of the variable temperature chamber (1) is no longer greater than the preset target temperature of the variable temperature chamber (1) , determine whether the next actual temperature of the variable temperature chamber (1) is greater than or equal to the current actual temperature of the variable temperature chamber (1) , and whether the next actual temperature of the variable temperature chamber (1) is less than or equal to the preset target temperature of the variable temperature chamber (1) ; At the next actual temperature of the variable temperature chamber (1) is greater than or equal to the current actual temperature of the variable temperature chamber (1) , and the next actual temperature of the variable temperature chamber (1) is greater than the preset target temperature of the variable temperature chamber (1) , 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 , until the actual temperature of the variable temperature chamber (1) reaches the preset condition, where add 1 before each adjustment; At the next actual temperature of the variable temperature chamber (1) is less than the current actual temperature of the variable temperature chamber (1) , and the next actual temperature of the variable temperature chamber (1) is less than or equal to the preset target temperature of the variable temperature chamber (1) , at least one adjustment is made to the open length of the air inlet (11), and each time an adjustment is made, the open length of the air inlet (11) is reduced , until the actual temperature of the variable temperature chamber (1) reaches the preset condition, where add 1 before each adjustment.

19. The temperature control method according to claim 17, wherein When the warming mode needs to be executed in the variable temperature chamber (1), according to the next actual temperature of the variable temperature chamber (1) and the current actual temperature as well as the preset target temperature The second-level adjustment of the opening length of the air inlet (11) includes: At the next actual temperature of the variable temperature chamber (1) is no longer less than the current actual temperature of the variable temperature chamber (1) , and the next actual temperature of the variable temperature chamber (1) is no longer less than the preset target temperature of the variable temperature chamber (1) , then determine whether the next actual temperature of the variable temperature chamber (1) is greater than or equal to the current actual temperature of the variable temperature chamber (1) , and whether the next actual temperature of the variable temperature chamber (1) is greater than or equal to the preset target temperature of the variable temperature chamber (1) ; At the next actual temperature of the variable temperature chamber (1) is greater than or equal to the current actual temperature of the variable temperature chamber (1) , and the next actual temperature of the variable temperature chamber (1) is less than the preset target temperature of the variable temperature chamber (1) , 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 , until the actual temperature of the variable temperature chamber (1) reaches the preset condition, where add 1 before each adjustment; At the next actual temperature of the variable temperature compartment (1) is greater than or equal to the current actual temperature of the variable temperature compartment (1) , and the next actual temperature of the variable temperature compartment (1) is greater than or equal to the preset target temperature of the variable temperature compartment (1) , 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 , until the actual temperature of the variable temperature compartment (1) reaches the preset condition, where add 1 before each adjustment.

20. The temperature control method according to any one of claims 10-14, characterized in that, The temperature control method further includes: 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 intervals of time t, and based on the next actual temperature of the variable temperature chamber (1) and the preset target temperature 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 chamber (1) no longer satisfies the preset conditions, adjusting the opening length of the air inlet (11) so that the actual temperature of the variable temperature chamber (1) returns to a state where the preset conditions are satisfied.

21. The temperature control method according to claim 20, characterized in that, According to the next actual temperature of the variable temperature chamber (1) and the preset target temperature to determine whether the actual temperature of the variable temperature chamber (1) no longer meets the preset condition includes: Determine the next actual temperature of the variable temperature chamber (1) and the preset target temperature whether the absolute difference is greater than the first value; and When the absolute difference between the next actual temperature of the variable temperature chamber (1) and the preset target temperature 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.

22. The temperature control method according to claim 20, wherein When the actual temperature of the variable temperature chamber (1) no longer satisfies the preset conditions, adjusting the opening length of the air inlet (11) includes: When the difference between the next actual temperature of the variable temperature chamber (1) and the preset target temperature is greater than the first value, increase the opening length of the air inlet (11) ; and / or When the difference between the next actual temperature of the variable temperature chamber (1) and the preset target temperature is less than a negative number of the first value, reduce the opening length of the air inlet (11) ; Wherein, , is the upper limit temperature of the variable temperature chamber (1), is the lower limit temperature of the variable temperature chamber (1), is the length when the air inlet (11) is fully opened, is a coefficient greater than 0 and less than 1.

23. A controller (6), characterized in that, Including 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 10-22 based on instructions stored in the memory (61).

24. A computer-readable storage medium storing computer instructions that are executed by a processor to perform the temperature control method according to any one of claims 10-22.

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