Drawer with adjustable cooling capacity, refrigerator and temperature control method

Abstract

The invention provides a drawer with adjustable cooling capacity, a refrigerator and a temperature control method, and relates to the technical field of refrigerators, a drawer assembly comprises a drawer main body and a cover plate structure, the top of the drawer main body is an open end, the cover plate structure is arranged at the top of the drawer main body, and the cover plate structure comprises a fixed plate, a movable plate and a driving mechanism; the fixed end of the driving mechanism is connected with the fixed plate, the moving end of the driving mechanism is connected with the moving plate, and the driving mechanism drives the moving plate to move so that the moving plate can shield the open end of the drawer body and close the drawer body, or the moving plate can be far away from the open end of the drawer body and open the drawer body. The driving mechanism is adopted to drive the cover plate to move, the cooling capacity in the drawer is automatically adjusted while sealing and moisturizing are achieved, the cooling rate of food materials in the drawer is increased, the refrigeration efficiency is optimized, the storage requirement and the fresh-keeping effect of the food materials are met, and the problems that a traditional refrigerator is not flexible in cooling capacity adjustment, poor in food fresh-keeping effect and poor in refrigerating effect are solved. And the energy consumption is relatively high.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerators, and in particular to a drawer with adjustable cooling capacity, a refrigerator and a temperature control method. Background Art

[0002] With the acceleration of the pace of modern life and the improvement of people's requirements for food preservation, refrigerators, as essential household appliances, are constantly innovating in performance and technology, and the utilization and intelligence of the internal space of refrigerators have also become the focus of users. In order to improve the preservation effect of food, the most common method is to provide a high-humidity environment through sealing and control the humidity of the fresh-keeping area. However, sealing is not conducive to the cooling of the food in the special area, resulting in the inability to quickly adjust the temperature in the refrigerator drawer. In addition, when storing food, when more food is put in at one time, more cold air is needed to quickly cool the food; when less food is put in at one time, less cold air is needed to reduce energy consumption. However, the existing drawer-type refrigerators have deficiencies in cold volume regulation and cannot automatically adjust the cold volume according to the number and type of items in the drawer, resulting in poor food preservation effect or excessive energy consumption.

[0003] The traditional refrigerator has inflexible cooling capacity adjustment and cannot automatically adjust the cooling capacity according to the specific usage scenario and the number and type of items in the drawer, resulting in poor food preservation effect. When the refrigerator stores less food, it still consumes a lot of energy. Therefore, it is necessary to provide a device that can adjust the cooling capacity in the drawer according to actual needs while ensuring a high humidity environment in the drawer, meet the storage needs of different ingredients, and optimize the overall refrigeration efficiency. Summary of the invention

[0004] The embodiments of the present application provide a drawer with adjustable cooling capacity, a refrigerator and a temperature control method, which are suitable for a sealed moisturizing drawer and can intelligently adjust the cooling input in the drawer according to the type and demand of the stored food, thereby achieving fast and accurate temperature control management, improving the preservation effect of food, and meeting the needs of intelligent storage. At the same time, unnecessary energy consumption is avoided through precise refrigeration, thereby improving the user experience and solving the problems of inflexible cooling capacity adjustment, poor food preservation effect and high energy consumption of traditional refrigerators.

[0005] In a first aspect, an embodiment of the present application provides a drawer with adjustable cooling capacity, wherein the drawer assembly comprises a drawer body and a cover plate structure, wherein the top of the drawer body is an open end, the cover plate structure is disposed on the top of the drawer body, and the cover plate structure is slidably connected to the drawer body;

[0006] The cover plate structure comprises a fixed plate, a movable plate and a driving mechanism;

[0007] The fixed plate is arranged on the top of the drawer body, the fixed plate and the movable plate are arranged alternately up and down, and the upper surface or the lower surface of the fixed plate is in contact with the lower surface or the upper surface of the movable plate;

[0008] The fixed end of the driving mechanism is connected to the fixed plate, and the moving end of the driving mechanism is connected to the movable plate;

[0009] The driving mechanism drives the movable plate to move so that the movable plate covers the open end of the drawer body to close the drawer body; or moves the movable plate away from the open end of the drawer body to open the drawer body.

[0010] In a feasible implementation, the fixed plate includes a left fixed plate and a right fixed plate, the movable plate includes a left movable plate and a right movable plate, and the left fixed plate, the left movable plate, the right movable plate and the right fixed plate are sequentially arranged along a first direction;

[0011] The driving mechanism includes a first driving mechanism and a second driving mechanism, the fixed end of the first driving mechanism is connected to the left fixed plate, the moving end of the first driving mechanism is connected to the left movable plate, the fixed end of the second driving mechanism is connected to the right fixed plate, and the moving end of the second driving mechanism is connected to the right movable plate.

[0012] In a feasible implementation, a first sealing structure is provided on the opposite surfaces of the fixed plate and the movable plate.

[0013] In a feasible implementation, a horizontal guide groove is provided on a side of the fixed plate facing the movable plate; a protrusion is provided on a side of the movable plate facing the fixed plate, and an outer wall of the protrusion is slidably connected to an inner wall of the horizontal guide groove.

[0014] In a feasible implementation, a second sealing structure is provided on the opposite surfaces of the left movable plate and the right movable plate.

[0015] In a feasible implementation, the opposite surfaces of the left movable plate and the right movable plate are provided with a stepped plug-in structure.

[0016] In a second aspect, an embodiment of the present application provides a refrigerator, the refrigerator comprising a refrigerator body, wherein the refrigerator body is provided with the above-mentioned drawer assembly;

[0017] A temperature sensor is arranged in the drawer assembly, a control panel is arranged in the refrigerator body, and the control panel, the temperature sensor and the driving mechanism are electrically connected in sequence.

[0018] In a feasible implementation, an air duct assembly is provided in the refrigerator body, and the air duct assembly has an air outlet, and the air outlet is located at the upper part of the drawer assembly.

[0019] In a third aspect, an embodiment of the present application provides a temperature control method, which is applied to the above-mentioned refrigerator, and the temperature control method includes:

[0020] Acquiring the temperature in the drawer assembly through a temperature sensor to obtain a first temperature, and the control board comparing the first temperature with the preset temperature range;

[0021] When the first temperature is within the preset temperature range, the control panel controls the driving mechanism to not act;

[0022] When the first temperature is greater than the preset temperature range, the control panel controls the driving mechanism to drive the movable plate to move toward the fixed plate, and when the movable plate moves to the locking position, the driving mechanism is controlled to stop the action;

[0023] The temperature in the drawer assembly is acquired again by the temperature sensor to obtain a second temperature, and the control board compares the second temperature with the preset temperature range;

[0024] When the second temperature is greater than the preset temperature range, the control panel controls the driving mechanism to not act;

[0025] When the second temperature is within the preset temperature range, the control panel controls the driving mechanism to drive the movable plate to move in the reset direction, and when the movable plate moves into position, controls the driving mechanism to stop the action.

[0026] In a feasible implementation, when the first temperature exceeds the temperature within the preset temperature range and reaches a first threshold temperature, the control panel controls the driving mechanism to drive the moving plate to move to the first locking position;

[0027] When the first temperature exceeds the temperature within the preset temperature range and reaches a second threshold temperature, the control panel controls the driving mechanism to drive the moving plate to move to a second locking position;

[0028] The second threshold temperature is greater than the first threshold temperature; when the two movable plates are in the first locking position, the distance between the two movable plates is a first distance, and when the two movable plates are in the second locking position, the distance between the two movable plates is a second distance, and the second distance is greater than the first distance.

[0029] The embodiment of the present application provides a drawer with adjustable coldness, a refrigerator and a temperature control method, wherein the drawer assembly includes a drawer body and a cover plate structure, wherein the top of the drawer body is an open end, and the cover plate structure is arranged on the top of the drawer body, and the cover plate structure includes a fixed plate, a movable plate and a driving mechanism, wherein the fixed end of the driving mechanism is connected to the fixed plate, and the moving end of the driving mechanism is connected to the movable plate, and the driving mechanism drives the movable plate to move so that the movable plate blocks the open end of the drawer body to close the drawer body, or moves the movable plate away from the open end of the drawer body to open the drawer body. The present application adopts a driving mechanism to drive the cover plate to move, and while achieving sealing and moisturizing, it automatically adjusts the coldness in the drawer, thereby increasing the cooling rate of the food in the drawer, optimizing the refrigeration efficiency, meeting the storage requirements and preservation effect of the food, and solving the shortcomings of the existing refrigerator in coldness regulation.

[0030] The drawer with adjustable cold capacity provided in the present application is suitable for a sealed moisturizing drawer. It can intelligently adjust the cold capacity input in the drawer according to the type and needs of the stored food, achieve fast and accurate temperature control management, improve the preservation effect of food, meet the needs of intelligent storage, and at the same time avoid unnecessary energy consumption through precise refrigeration, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of a drawer with adjustable cooling capacity provided by the present application;

[0032] Figure 2 It is a front view schematic diagram of the cover plate structure;

[0033] Figure 3 It is a reverse schematic diagram of the cover plate structure;

[0034] Figure 4 It is a structural schematic diagram of the refrigerator provided by the present application;

[0035] Figure 5 It is a flow chart of the temperature control method provided by this application.

[0036] Description of reference numerals:

[0037] 10-refrigerator body; 20-drawer assembly;

[0038] 11- air duct assembly; 12- air outlet; 13- control panel; 21- drawer body; 22- cover plate structure; 23- temperature sensor;

[0039] 221-fixed plate; 222-movable plate; 223-left fixed plate; 224-left movable plate; 225-right movable plate; 226-right fixed plate; 227-horizontal guide groove; 228-protrusion; 229-driving mechanism. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0041] The traditional refrigerator has inflexible cooling capacity adjustment and cannot automatically adjust the cooling capacity according to the specific usage scenario and the number and type of items in the drawer, resulting in poor food preservation effect. When the refrigerator stores less food, it still consumes a lot of energy. Therefore, it is necessary to provide a device that can adjust the cooling capacity in the drawer according to actual needs while ensuring a high humidity environment in the drawer, meet the storage needs of different ingredients, and optimize the overall refrigeration efficiency.

[0042] The drawer with adjustable cold capacity provided in the present application is suitable for a sealed moisturizing drawer. It can intelligently adjust the cold capacity input in the drawer according to the type and needs of the stored food, achieve fast and accurate temperature control management, improve the preservation effect of food, meet the needs of intelligent storage, and at the same time avoid unnecessary energy consumption through precise refrigeration, thereby improving the user experience.

[0043] The specific structure of the drawer with adjustable cooling capacity, refrigerator and temperature control method provided by the present application is described in detail below in conjunction with the accompanying drawings.

[0044] Reference Figure 1-Figure 3 As shown, the embodiment of the present application provides a drawer with adjustable cooling capacity, and the drawer assembly 20 includes a drawer body 21 and a cover plate structure 22;

[0045] like Figure 1 As shown, the drawer body 21 may be a conventional drawer, the top of the drawer body 21 is an open end, the cover structure 22 is disposed on the top of the drawer body 21, and at least a portion of the cover structure 22 is slidably connected to the drawer body 21;

[0046] like Figure 1-Figure 3 As shown, the cover plate structure 22 includes a fixed plate 221, a movable plate 222 and a driving mechanism 229;

[0047] The fixed plate 221 and the movable plate 222 can both be rectangular plates, and the lengths of the fixed plate 221 and the movable plate 222 can be equal to the length of the inner cavity of the drawer body 21, and the fixed plate 221 and the movable plate 222 are both arranged at the top of the inner cavity of the drawer body 21;

[0048] The fixed plate 221 is arranged on the top of the drawer body 21, and the fixed plate 221 and the movable plate 222 are arranged alternately up and down, and the upper surface or the lower surface of the fixed plate 221 is in contact with the lower surface or the upper surface of the movable plate 222;

[0049] The fixed end of the driving mechanism 229 is connected to the fixed plate 221, and the moving end of the driving mechanism 229 is connected to the movable plate 222;

[0050] The driving mechanism 229 drives the movable plate 222 to move, so that the movable plate 222 blocks the open end of the drawer body 21 to close the drawer body 21; or moves the movable plate 222 away from the open end of the drawer body 21 to open the drawer body 21.

[0051] The drawer with adjustable cold capacity provided in the present application is suitable for a sealed moisturizing drawer. It can intelligently adjust the cold capacity input in the drawer according to the type and needs of the stored food, achieve fast and accurate temperature control management, improve the preservation effect of food, meet the needs of intelligent storage, and at the same time avoid unnecessary energy consumption through precise refrigeration, thereby improving the user experience.

[0052] Reference Figure 2 and Figure 3 As shown, in some embodiments, the fixed plate 221 includes a left fixed plate 223 and a right fixed plate 226, the left fixed plate 223 and the right fixed plate 226 are both rectangular plates, and the sizes can be exactly the same, the movable plate 222 includes a left movable plate 224 and a right movable plate 225, the left movable plate 224 and the right movable plate 225 are both rectangular plates, and the sizes can be exactly the same, the left fixed plate 223, the left movable plate 224, the right movable plate 225 and the right fixed plate 226 are arranged in sequence along the first direction, and the first direction is the draw The width direction of the drawer body 21, that is, the left fixed plate 223 and the right fixed plate 226 are respectively fixedly arranged at the two ends of the width direction of the drawer body 21, and the left movable plate 224 and the right movable plate 225 are respectively arranged at the two sides of the width direction of the drawer body 21, and the left movable plate 224 and the right movable plate 225 are parallel, and the upper surface or lower surface of the left movable plate 224 is in contact with the lower surface or upper surface of the left fixed plate 223, and the upper surface or lower surface of the right movable plate 225 is in contact with the lower surface or upper surface of the left fixed plate 223;

[0053] The driving mechanism 229 includes a first driving mechanism and a second driving mechanism. The fixed end of the first driving mechanism is connected to the left fixed plate 223, the moving end of the first driving mechanism is connected to the left movable plate 224, the fixed end of the second driving mechanism is connected to the right fixed plate 226, and the moving end of the second driving mechanism is connected to the right movable plate 225.

[0054] The first driving mechanism drives the left movable plate 224 to move, and the second driving mechanism drives the right movable plate 225 to move. When it is detected that the temperature in the drawer assembly 20 is too high, the first driving mechanism and the second driving mechanism can drive the left movable plate 224 and the right movable plate 225 to move outward along the width direction of the drawer body 21, so that the upper part of the drawer body 21 is opened, so that cold air can enter the drawer body 21;

[0055] When it is detected that the temperature of the drawer body 21 reaches a predetermined temperature, the left movable plate 224 and the right movable plate 225 are reset by the first driving mechanism and the second driving mechanism, so that the opposite surfaces of the left movable plate 224 and the right movable plate 225 are fitted together, the upper part of the drawer body 21 is closed, and the drawer assembly 20 is sealed.

[0056] In some embodiments, a first sealing structure is disposed on the opposite surfaces of the fixed plate 221 and the movable plate 222 . The first sealing structure may be a sealing pad, a rubber pad, or the like.

[0057] In some embodiments, a horizontal guide groove 227 is provided on one side of the fixed plate 221 facing the movable plate 222. The horizontal guide groove 227 may be a semicircular groove body, and the horizontal guide groove 227 extends along the first direction;

[0058] A protrusion 228 is provided on the side of the movable plate 222 facing the fixed plate 221. The protrusion 228 can be a semicircular protrusion. The protrusion 228 matches the horizontal guide groove 227. The outer wall of the protrusion 228 is slidably connected to the inner wall of the horizontal guide groove 227, thereby ensuring the sealing of the fixed plate 221 and the movable plate 222.

[0059] like Figure 1-Figure 3 As shown, in some embodiments, the opposite surfaces of the left movable plate 224 and the right movable plate 225 are provided with a second sealing structure, and the second sealing structure may be a sealing strip, a rubber pad, etc.

[0060] Specifically, the opposite surfaces of the left movable plate 224 and the right movable plate 225 are provided with a stepped plug-in structure, and the digital cross-sections of the two are stepped, thereby ensuring the sealing of the left movable plate 224 and the right movable plate 225 after being connected.

[0061] Reference Figure 4 As shown, the embodiment of the present application provides a refrigerator, including a refrigerator body 10, in which the above-mentioned drawer assembly 20 is arranged;

[0062] A temperature sensor 23 is provided in the drawer assembly 20. The temperature sensor 23 is a conventional sensor for monitoring the temperature in the drawer assembly 20. A control board 13 is provided in the refrigerator body 10. The control board 13, the temperature sensor 23 and the driving mechanism 229 are electrically connected in sequence.

[0063] The temperature sensor 23 monitors the temperature inside the drawer assembly 20 and transmits it to the control board 13. The control board 13 controls the movement of the drive mechanism 229 according to the actual temperature inside the drawer assembly 20, controls the opening and closing of the top of the drawer body 21, and thus adjusts the temperature inside the drawer assembly 20.

[0064] In some embodiments, a duct assembly 11 is provided in the refrigerator body 10. The duct assembly 11 may be a conventional duct. The duct assembly 11 has an air outlet 12. The air outlet 12 is located at the upper portion of the drawer assembly 20.

[0065] When the control panel 13 controls the driving mechanism 229 to move and the top of the drawer body 21 is opened, the air outlet 12 of the air duct assembly 11 discharges cold air into the drawer body 21 to quickly cool the interior of the drawer assembly 20 .

[0066] Reference Figure 5 As shown, an embodiment of the present application provides a temperature control method, which is applied to the above-mentioned refrigerator, and the temperature control method includes:

[0067] S1: Obtain the temperature in the drawer assembly through a temperature sensor to obtain a first temperature.

[0068] The temperature sensor is arranged in the drawer body to obtain the temperature in the drawer assembly in real time and transmit it to the control board.

[0069] S2: The control board compares the first temperature with a preset temperature range.

[0070] The control panel of the refrigerator stores a temperature range preset by the user, for example, the preset temperature range is 3-8°. When the control panel receives the first temperature of the drawer assembly monitored by the temperature sensor, the first temperature is compared with the preset temperature range.

[0071] When the first temperature is within the preset temperature range, the control board controls the driving mechanism not to operate; for example, when the first temperature is 6°, the first temperature is within the preset temperature range, and the control board controls the driving mechanism not to operate.

[0072] S3: When the first temperature is greater than the preset temperature range, the control panel controls the driving mechanism to drive the movable plate to move toward the fixed plate, and when the movable plate moves to the locking position, the driving mechanism is controlled to stop moving;

[0073] For example, when the first temperature is 13° and the first temperature is greater than the preset temperature range, the control panel controls the driving mechanism to drive the movable plate to move, so that the movable plate moves outward in the first direction to open the drawer assembly. The control panel controls the driving mechanism to move a certain distance so that the movable plate reaches the preset locking position, and then the control panel controls the driving mechanism to stop moving.

[0074] S4: The temperature in the drawer assembly is again acquired through the temperature sensor to obtain a second temperature.

[0075] Cold air enters the drawer assembly to reduce the temperature inside the drawer assembly. The temperature sensor monitors the temperature inside the drawer assembly in real time, obtains a second temperature, and transmits it to the control board.

[0076] S5: The control panel compares the second temperature with a preset temperature range;

[0077] After receiving the second temperature, the control panel compares the second temperature with a preset temperature range.

[0078] When the second temperature is greater than the preset temperature range, the control board controls the driving mechanism not to operate; for example, when the second temperature is 11° and the second temperature is greater than the preset temperature range, the control board controls the driving mechanism not to operate, and the drawer assembly is still in an open state, so that the external cold air continues to be discharged into the drawer assembly, and the temperature in the drawer assembly continues to decrease. The temperature sensor monitors the temperature in the drawer assembly in real time and transmits it to the control board. The control board compares the actual temperature in the drawer assembly with the preset temperature range until the actual temperature in the drawer assembly meets the preset temperature range, and then proceeds to the next step.

[0079] S6: When the second temperature is within the preset temperature range, the control board controls the driving mechanism to drive the movable plate to move in the reset direction, and when the movable plate moves into position, the driving mechanism is controlled to stop moving.

[0080] For example, if the second temperature is 7° and is within the preset temperature range, the control plate controls the direction of movement of the driving mechanism to reset the movable plate and close and seal the drawer assembly.

[0081] In some embodiments, the degree to which the actual temperature in the drawer assembly exceeds the preset temperature is different, the control panel controls the driving mechanism to drive the movable plate to move at different distances, and the opening width of the cover structure is different. The excess temperature can be divided into N levels, and correspondingly, the opening width of the cover structure is set to N levels.

[0082] In this application, the exceeded temperature is divided into three levels. The control panel stores a first threshold temperature and a second threshold temperature, the second threshold temperature is greater than the first threshold temperature, when the actual temperature in the drawer assembly exceeds the preset temperature and is less than the first threshold temperature, it is the first level; when the actual temperature in the drawer assembly exceeds the preset temperature and is greater than the first threshold temperature, but less than the second threshold temperature, it is the second level; when the actual temperature in the drawer assembly exceeds the preset temperature and is greater than the second threshold temperature, it is the third level;

[0083] The movement distance of the driving mechanism is set to three levels, that is, the moving positions of the moving plates are set to three, namely the first locking position, the second locking position and the third locking position. When the two moving plates are in the first locking position, the distance between the two moving plates is the first distance. When the two moving plates are in the second locking position, the distance between the two moving plates is the second distance. When the two moving plates are in the third locking position, the distance between the two moving plates is the third distance. The third distance is greater than the second distance and greater than the first distance.

[0084] When the first temperature exceeds the temperature within the preset temperature range and reaches a first threshold temperature, the control panel controls the driving mechanism to drive the moving plate to move to the first locking position;

[0085] When the first temperature exceeds the temperature within the preset temperature range and reaches a second threshold temperature, the control panel controls the driving mechanism to drive the moving plate to move to the second locking position;

[0086] When the first temperature exceeds the temperature within the preset temperature range and reaches a third threshold temperature, the control panel controls the driving mechanism to drive the moving plate to move to the third locking position.

[0087] In one embodiment, the first threshold temperature, the second threshold temperature and the third threshold temperature are 3° C., 6° C. and 10° C. respectively, and the specific values ​​of the threshold temperatures can be freely set according to the user's usage environment, storage items, etc.

[0088] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0089] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A drawer with adjustable cooling capacity, characterized in that: The drawer assembly (20) comprises a drawer body (21) and a cover plate structure (22), wherein the top of the drawer body (21) is an open end, the cover plate structure (22) is arranged on the top of the drawer body (21), and the cover plate structure (22) is slidably connected to the drawer body (21); The cover plate structure (22) comprises a fixed plate (221), a movable plate (222) and a driving mechanism (229); The fixed plate (221) is arranged on the top of the drawer body (21), the fixed plate (221) and the movable plate (222) are arranged alternately up and down, and the upper surface or the lower surface of the fixed plate (221) is in contact with the lower surface or the upper surface of the movable plate (222); The fixed end of the driving mechanism (229) is connected to the fixed plate (221), and the moving end of the driving mechanism (229) is connected to the movable plate (222); The driving mechanism (229) drives the movable plate (222) to move, so that the movable plate (222) covers the open end of the drawer body (21), so that the drawer body (21) is closed; or the movable plate (222) moves away from the open end of the drawer body (21), so that the drawer body (21) is opened.

2. The drawer with adjustable cooling capacity according to claim 1, characterized in that: The fixed plate (221) comprises a left fixed plate (223) and a right fixed plate (226), the movable plate (222) comprises a left movable plate (224) and a right movable plate (225), and the left fixed plate (223), the left movable plate (224), the right movable plate (225) and the right fixed plate (226) are arranged in sequence along a first direction; The driving mechanism (229) comprises a first driving mechanism and a second driving mechanism, wherein the fixed end of the first driving mechanism is connected to the left fixed plate (223), the moving end of the first driving mechanism is connected to the left movable plate (224), the fixed end of the second driving mechanism is connected to the right fixed plate (226), and the moving end of the second driving mechanism is connected to the right movable plate (225).

3. The drawer with adjustable cooling capacity according to claim 2, characterized in that: A first sealing structure is provided on the opposite surfaces of the fixed plate (221) and the movable plate (222).

4. The drawer with adjustable cooling capacity according to claim 3, characterized in that: A horizontal guide groove (227) is provided on one side of the fixed plate (221) facing the movable plate (222); a protrusion (228) is provided on one side of the movable plate (222) facing the fixed plate (221), and an outer wall of the protrusion (228) is slidably connected to an inner wall of the horizontal guide groove (227).

5. The drawer with adjustable cooling capacity according to claim 2, characterized in that: The opposing surfaces of the left movable plate (224) and the right movable plate (225) are provided with a second sealing structure.

6. The drawer with adjustable cooling capacity according to claim 5, characterized in that: The opposite surfaces of the left movable plate (224) and the right movable plate (225) are provided with a stepped plug-in structure.

7. A refrigerator, characterized in that: It comprises a refrigerator body (10), wherein the refrigerator body (10) is provided with a drawer assembly (20) according to any one of claims 1 to 6; A temperature sensor (23) is provided in the drawer assembly (20), a control panel (13) is provided in the refrigerator body (10), and the control panel (13), the temperature sensor (23) and the driving mechanism (229) are electrically connected in sequence.

8. The refrigerator according to claim 7, characterized in that: An air duct assembly (11) is provided in the refrigerator body (10), and the air duct assembly (11) has an air outlet (12), and the air outlet (12) is located at the upper part of the drawer assembly (20).

9. A temperature control method, characterized in that: The temperature control method is applied to the refrigerator according to claim 7 or 8, and the temperature control method comprises: Acquiring the temperature in the drawer assembly through a temperature sensor to obtain a first temperature, and the control board comparing the first temperature with the preset temperature range; When the first temperature is within the preset temperature range, the control panel controls the driving mechanism to not act; When the first temperature is greater than the preset temperature range, the control panel controls the driving mechanism to drive the movable plate to move toward the fixed plate, and when the movable plate moves to the locking position, the driving mechanism is controlled to stop the action; The temperature in the drawer assembly is acquired again by the temperature sensor to obtain a second temperature, and the control board compares the second temperature with the preset temperature range; When the second temperature is greater than the preset temperature range, the control panel controls the driving mechanism to not act; When the second temperature is within the preset temperature range, the control panel controls the driving mechanism to drive the movable plate to move in the reset direction, and when the movable plate moves into position, controls the driving mechanism to stop the action.

10. The temperature control method according to claim 9, characterized in that: When the first temperature exceeds the temperature within the preset temperature range and reaches a first threshold temperature, the control panel controls the driving mechanism to drive the moving plate to move to a first locking position; When the first temperature exceeds the temperature within the preset temperature range and reaches a second threshold temperature, the control panel controls the driving mechanism to drive the moving plate to move to a second locking position; The second threshold temperature is greater than the first threshold temperature; when the two movable plates are in the first locking position, the distance between the two movable plates is a first distance, and when the two movable plates are in the second locking position, the distance between the two movable plates is a second distance, and the second distance is greater than the first distance.

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