Refrigerating drawer, refrigerator comprising same and refrigerating method using same

Abstract

This invention discloses a refrigeration drawer, a refrigerator including the same, and a refrigeration method using the same. The refrigeration drawer includes an air inlet cavity, a blower, and a cooling cavity. The blower is located inside the air inlet cavity and close to the cooling cavity. The air inlet cavity and the cooling cavity are connected via a blower outlet and a vent. The air inlet cavity is connected to the outside environment via the air inlet. The blower outlet is positioned corresponding to the location of the blower. The vent is positioned around the blower. The air inlet cavity is located above the cooling cavity, and its thickness is less than that of the cooling cavity. This design allows cold air to be pressurized twice by the blower before entering the cooling cavity, ensuring sufficient kinetic energy. The coordinated arrangement of the blower outlet, vent, and blower promotes the circulation of cold air across the cross-section and longitudinal section of the blower. The large and uniform contact area between the cold air and the items to be cooled reduces cooling dead zones.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology, and in particular to a refrigeration drawer, a refrigerator including the same, and a refrigeration method using the same. Background Technology

[0002] Refrigerators, as containers that keep food or other items at a constant low temperature, have become an indispensable household appliance in modern homes. With rising consumer demands, users have placed more diverse requirements on the cooling performance of refrigerators, such as needing to cool room-temperature beverages and beer to a suitable drinking temperature (e.g., 8°C) in a very short time, or to rapidly cool fresh ingredients to maintain their freshness. Therefore, a quick-cooling drawer can be installed inside the refrigerator.

[0003] However, existing quick-cooling drawers typically use independent refrigeration pipes to directly deliver cold air from the refrigerator's main refrigeration system, or employ a quick-cooling plate (such as an aluminum plate) as a heat-conducting medium to directly contact the material for cooling, or install a variable-temperature supply air path at the rear of the quick-cooling drawer to achieve rapid cooling. Because the cold air exiting the main air duct's blower nozzle experiences a sharp decrease in velocity along the jet direction due to entrainment and momentum exchange, the natural dispersion of cold air makes it difficult to reach the drawer corners, the quick-cooling plate has a small contact area, and the variable-temperature supply air path requires additional complex piping, these solutions suffer from uneven temperature distribution, poor cooling performance, or complex structures. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of uneven temperature, poor cooling effect or complex structure of the existing rapid cooling drawer, and to provide a refrigeration drawer, a refrigerator including the same, and a refrigeration method using the same.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A refrigerated drawer includes an air inlet cavity, a blower, and a cooling cavity, wherein the blower is located inside the air inlet cavity and is disposed close to the cooling cavity;

[0007] The air inlet chamber and the cooling chamber are connected by an air vent and a ventilation opening;

[0008] The air inlet cavity is connected to the outside through an air inlet;

[0009] The air inlet is positioned corresponding to the location of the air blowing device;

[0010] The ventilation opening is arranged around the blower device;

[0011] The air inlet chamber is located above the cooling chamber, and the thickness of the air inlet chamber is less than the thickness of the cooling chamber.

[0012] In this technical solution, by providing this refrigeration drawer, cold air enters the air inlet cavity from the outside, is then pressurized a second time by the blower before entering the cooling cavity. This effectively compensates for the pressure drop loss during the cold air's transport process, ensuring that the cold air has sufficient kinetic energy. The coordinated arrangement of the air inlet, vent, and blower promotes uniform distribution of cold air across the cross-section of the blower. Furthermore, the combined effect of the blower's airflow and the natural settling tendency of the cold air enhances the circulation effect of the cold air across the longitudinal section. This results in a large and uniform contact area between the cold air and the items to be cooled, reducing cooling dead zones. The overall structure of this refrigeration drawer is simple, with a short airflow path, small duct volume, and short cold air filling time, ensuring effective storage capacity.

[0013] Preferably, the refrigeration drawer further includes a flow guiding device located between the air inlet cavity and the cooling cavity;

[0014] The air guide device has multiple downward-facing and side-facing air inlets;

[0015] At least a portion of the flow guiding device is arranged around the blower.

[0016] In this technical solution, the above-mentioned settings improve the uniformity of the temperature field inside the refrigeration drawer. Multi-point airflow and large-area uniform coverage reduce the velocity of single-point airflow jets, thus minimizing jet turbulence. The airflow guiding device uses downward-facing blowers to direct cold air directly onto items at the bottom of the drawer, while side-facing blowers diffuse cold air laterally to the corners of the drawer, reducing airflow blind spots or low-speed zones deep within the refrigeration drawer.

[0017] Preferably, the refrigeration drawer further includes a temperature sensor, which is connected below the airflow guide device;

[0018] The air vent is positioned away from the temperature sensor.

[0019] In this technical solution, the above settings further utilize the natural trend of cold air settling and avoid detection errors caused by the blower vent pointing directly at the temperature sensor, making it easier for the temperature sensor to accurately sense the temperature of the storage area.

[0020] Preferably, the refrigeration drawer includes a drawer back panel, and the bottom of the deflector is positioned below the top of the drawer back panel;

[0021] The back panel of the drawer can be moved horizontally in the direction of pulling out to remove the contents of the refrigeration drawer;

[0022] The drawer back panel can be flipped backward to avoid the bottom of the flow guide during translation.

[0023] In this technical solution, the above-mentioned settings allow the airflow guiding device to penetrate deep into the interior of the refrigeration drawer, thereby improving the airflow guiding effect. At the same time, by setting a drawer back panel that can be flipped back, interference between the drawer back panel and the refrigeration drawer is avoided, which would prevent the drawer from being pulled out.

[0024] Preferably, the refrigeration drawer further includes a blocking member, which is located behind the flow guiding device, and the bottom of the blocking member is lower than the top of the drawer back panel;

[0025] When the drawer back panel moves outward, the blocking member can block the top of the drawer back panel, causing the drawer back panel to flip backward.

[0026] In this technical solution, with the above-mentioned settings, when the drawer back panel moves outward, the blocking component passively blocks the top of the drawer back panel, and the drawer back panel automatically flips backward by using the pulling action itself, thus avoiding structural damage caused by the top of the drawer back panel hitting the guide device, and making operation convenient.

[0027] Preferably, the refrigeration drawer further includes a rope box, which is fixed inside the cooling cavity, and the rope of the rope box is connected to the upper part of the drawer's back panel.

[0028] When the drawer back panel moves outward, the connecting rope can pull the drawer back panel, causing the drawer back panel to flip backward.

[0029] In this technical solution, with the above-mentioned settings, when the drawer back panel moves outward, the tow rope passively pulls the upper part of the drawer back panel, and the drawer back panel automatically flips backward by using the pulling action itself, thus avoiding structural damage caused by the top of the drawer back panel hitting the guide device, and making the operation convenient.

[0030] Preferably, the blower is centrally located in the refrigeration drawer; and / or,

[0031] The blower devices are symmetrically arranged in the refrigeration drawer.

[0032] In this technical solution, the blower is centrally positioned so that the cold air is evenly distributed in the circumferential direction, and each branch of the flow guide device receives a basically equal airflow, ensuring the consistency of airflow at each blower outlet.

[0033] By symmetrically arranging the blower devices, the air volume can be further increased while maintaining the symmetry of airflow distribution, making it suitable for larger refrigeration drawers.

[0034] A refrigerator comprising a refrigeration drawer as described above;

[0035] The refrigerator also includes a control unit and a compressor, and the control unit is electrically connected to the compressor and the blower.

[0036] In this technical solution, by providing this refrigerator, localized rapid cooling of the cooling drawer can be achieved using the existing cold source of the refrigerator. It directly utilizes the cold air generated by the existing refrigeration system of the refrigerator, eliminating the need for an additional independent refrigeration system (such as a semiconductor or micro compressor). The addition of a control unit to coordinate the control of the compressor and blower can further improve refrigeration efficiency.

[0037] A refrigeration method that uses a refrigerator as described above;

[0038] The refrigeration drawer also includes a flow guiding device, which is located between the air inlet cavity and the cooling cavity;

[0039] The air guide device has multiple downward-facing and side-facing air inlets;

[0040] At least a portion of the flow guiding device is arranged around the blower device;

[0041] The steps of the refrigeration method include:

[0042] S1, trigger rapid cooling command;

[0043] S2. After receiving the rapid cooling command, the control unit detects whether the compressor is in operation.

[0044] If the compressor is not running, the control unit controls the compressor to start;

[0045] If the compressor is already running, proceed to step S3;

[0046] S3. The control unit controls the blower to start, with the highest speed, and to run continuously for a preset time.

[0047] The cold air enters the air inlet from the main air duct of the refrigerator, enters the cooling cavity under the pressure of the blower, and is guided by the air guiding device.

[0048] In this technical solution, the compressor is started first, followed by the blower, to ensure sufficient cold source. The blower operates at its highest speed for rapid cooling. After entering the air inlet from the main air duct, the cold air is pressurized again by the blower before entering the cooling chamber, and then evenly distributed to the drawer interior through multiple air outlets of the air guide device. The pressurization compensates for the pressure drop loss in the main air duct, and the air guide achieves uniform airflow coverage. The two work together to achieve efficient and uniform rapid cooling.

[0049] Preferably, the refrigeration drawer further includes a temperature sensor, which is connected below the airflow guide device;

[0050] The cooling method further includes the following steps:

[0051] S4. The temperature sensor monitors the internal temperature of the refrigeration drawer in real time, and the control unit dynamically adjusts the speed of the blower based on the difference between the internal temperature of the refrigeration drawer and the target temperature.

[0052] In this technical solution, the above settings enable the control unit to dynamically adjust the speed of the blower based on the temperature difference between the inside of the drawer and the target temperature. When the temperature difference is large, the speed is increased to accelerate cooling, and when the temperature difference is small, the speed is reduced to avoid overcooling, thereby improving the accuracy of cooling and saving energy.

[0053] The positive and progressive effects of this invention are as follows:

[0054] By providing this refrigerated drawer, cold air enters the air inlet chamber from the outside, is then pressurized a second time by the blower before entering the cooling chamber. This effectively compensates for the pressure drop loss during the cold air's transport process, ensuring sufficient kinetic energy. The coordinated arrangement of the air inlet, vent, and blower promotes uniform distribution of cold air across the cross-section of the blower. Furthermore, the combined effect of the blower's airflow and the natural settling of the cold air enhances the circulation of cold air along the longitudinal section. This results in a large and uniform contact area between the cold air and the items being cooled, reducing cooling dead zones. The refrigerated drawer has a simple overall structure, a short airflow path, a small duct volume, and a short cold air filling time, ensuring effective storage capacity. Attached Figure Description

[0055] Figure 1 This is an exploded view of the refrigeration drawer according to an embodiment of the present invention.

[0056] Figure 2 This is a cross-sectional structural diagram of a refrigeration drawer according to an embodiment of the present invention.

[0057] Figure 3 This is a schematic diagram of the longitudinal section of a refrigeration drawer in an embodiment of the present invention when it is not refrigerated.

[0058] Figure 4 This is a schematic diagram of the longitudinal section structure of a refrigeration drawer in an embodiment of the present invention during refrigeration.

[0059] Figure 5 This is a schematic diagram showing the positional relationship between the blower and the guide device according to an embodiment of the present invention.

[0060] Figure 6 This is a partially enlarged view of a refrigeration drawer according to an embodiment of the present invention.

[0061] Figure 7 This is a flowchart of a refrigeration method according to an embodiment of the present invention.

[0062] Explanation of reference numerals in the attached figures:

[0063] Air intake cavity 11

[0064] Cooling cavity 12

[0065] Partition bottom plate 13

[0066] Partition cover 14

[0067] Temperature sensor 15

[0068] Drawer back panel 16

[0069] Barrier component 171

[0070] Rope Box 172

[0071] First magnet 173

[0072] Second magnet 174

[0073] Drawer panel 19

[0074] Blower 21

[0075] Flow guiding device 22

[0076] Control button 23

[0077] Ventilation 31

[0078] 32 air inlets

[0079] Side air outlet 321

[0080] Lower air outlet 322

[0081] Air inlet 33

[0082] Air outlet 34 Detailed Implementation

[0083] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0084] like Figures 1-5 As shown, this embodiment provides a refrigeration drawer, which includes an air inlet cavity 11, a blower device 21, and a cooling cavity 12. The blower device 21 is located inside the air inlet cavity 11 and is disposed close to the cooling cavity 12. The air inlet cavity 11 and the cooling cavity 12 are connected through an air inlet 32 ​​and a ventilation opening 31. The air inlet cavity 11 is connected to the outside through an air inlet 33. The air inlet 32 ​​is disposed corresponding to the position of the blower device 21. The ventilation opening 31 is disposed around the periphery of the blower device 21. The air inlet cavity 11 is located above the cooling cavity 12, and the thickness d of the air inlet cavity 11 is less than the thickness of the cooling cavity 12.

[0085] This design ensures that after the cold air enters the air inlet chamber 11 from the outside, it is pressurized a second time by the blower device 21 before entering the cooling chamber 12. This effectively compensates for the pressure drop loss during the cold air's transport process, ensuring that the cold air has sufficient kinetic energy. The coordinated arrangement of the air inlet 32, the ventilation outlet 31, and the blower device 21 promotes uniform distribution of cold air across the cross-section of the blower device 21. Furthermore, the combined effect of the blower device 21's airflow and the natural settling tendency of the cold air enhances the circulation effect of the cold air across the longitudinal section. This results in a large and uniform contact area between the cold air and the items being cooled, reducing cooling dead zones. The overall structure of this refrigeration drawer is simple, with a short airflow path, small duct volume, and short cold air filling time, ensuring effective storage capacity.

[0086] In this embodiment, the lower part of the air inlet chamber 11 is separated from the upper part of the cooling chamber 12 by the partition bottom plate 13. The vent 31 is located on the partition bottom plate 13, and the air inlet 33 is located on the rear side of the air inlet chamber 11. The air outlet 34 is located at the lower part of the cooling drawer to discharge cooling gas.

[0087] It is important to note that the terms "rear side" and "front side" here are relative to the user. When the user stands in front of the drawer front panel 19 of the refrigeration drawer, the side furthest from the user is the rear side (the deepest part of the refrigeration drawer), and the side closest to the user is the front side. The direction of pulling out refers to the direction in which the user moves the refrigeration drawer along the line connecting the front and rear sides.

[0088] In this embodiment, the upper part of the air inlet cavity 11 is provided with a partition cover plate 14, and the partition cover plate 14 is provided with a control button 23, which is electrically connected to the control unit (not shown in the figure).

[0089] like Figure 6 As shown, the refrigeration drawer also includes an air guiding device 22, located between the air inlet cavity 11 and the cooling cavity 12. The air guiding device 22 has multiple downward-facing and side-facing air outlets 32. At least a portion of the air guiding device 22 is arranged around the air blowing device 21. This improves the uniformity of the temperature field inside the refrigeration drawer. Through multi-point air outlets and large-area uniform coverage, the velocity of single-point airflow is reduced, decreasing jet turbulence. The air guiding device 22 uses the downward-facing air outlets 32 to direct cold air directly to items at the bottom of the drawer, and the side-facing air outlets 32 to diffuse cold air laterally to the corner areas of the drawer, reducing airflow blind spots or low-speed zones formed deep within the refrigeration drawer.

[0090] In this embodiment, a rubber pad is provided between the flow guiding device 22 and the blower device 21 (here a small centrifugal fan) to reduce noise.

[0091] In this embodiment, the flow guiding device 22 is specifically configured as follows:

[0092] The thickness d of the air inlet cavity 11, the width a of the air inlet 33, the thickness df from the inlet of the air blowing device 21 to the top of the partition layer, the diameter D of the air inlet 33, the thickness dl of the flow channel of the flow guiding device 22, the number n of the air blowing ports of the flow guiding device 22, and the width b of the air blowing ports.

[0093] The area S1 of the air inlet 33 = a * d.

[0094] The area S2 of the air inlet 33 of the air blowing device 21 = πD² / 4.

[0095] The air blowing ports 32 of the flow guiding device 22 are divided into side air outlet holes 321 and lower air outlet holes 322. The lateral air outlet area S3 = n * dl * b; the radius d2 of the lower air outlet holes 322, and the area S4 = n² * πd2².

[0096] S2 < S1. After the partition layer admits air, a part of the air flow enters the air blowing device 21, and a part of the air flow will exit through the ventilation port 31. Therefore, the air inlet area of the air blowing device 21 is smaller than the air inlet area of the partition layer, and the air blowing device 21 plays a role in secondary pressure boosting.

[0097] The air outlet area of the flow guiding device 22 is S3 + S4. S2 < S3 + S4 < 1.3 * S2. If the air outlet area is too small, it will increase the frictional loss along the way. If the area is too large, it will cause boundary layer separation, form eddy currents, and cause significant energy loss.

[0098] The outer contour line of the flow guiding device 22 is an involute, which guides the air flow to the outlet of the flow guiding device 22. The flow guiding device 22 can be divided into section A and section B after coming out of the impeller. Section A has an inclination angle, and section B is horizontal. The lower air outlet holes 322 are arranged in section B. The air flow at the outlet of the air blowing device 21 increases the downward velocity and air volume through the guiding inclination of section A, which is beneficial for the air flow to be transmitted downward through the outflow small holes; through the involute of section B, a swirl in the lateral space is formed, converting part of the dynamic pressure into static pressure, obtaining a more uniform outlet flow field, and reducing energy loss.

[0099] In this embodiment, the refrigeration drawer further includes a temperature sensor 15, and the temperature sensor 15 is connected below the flow guiding device 22; the air blowing ports 32 are arranged to avoid the temperature sensor 15. In this way, the natural tendency of cold air settlement is further utilized, and the detection error caused by the air blowing ports 32 being aligned with the temperature sensor 15 is avoided, which is convenient for the temperature sensor 15 to accurately sense the temperature of the storage area.

[0100] In this embodiment, the refrigeration drawer includes a drawer back panel 16, and the bottom of the flow guide device 22 is positioned lower than the top of the drawer back panel 16. The drawer back panel 16 can be moved horizontally in the pulling direction to remove the contents of the refrigeration drawer. The drawer back panel 16 can also be flipped backward to avoid the bottom of the flow guide device 22 during the horizontal movement. This allows the flow guide device 22 to penetrate deep into the interior of the refrigeration drawer, improving the flow guiding effect. Simultaneously, by providing a drawer back panel 16 that can be flipped backward, interference between the drawer back panel 16 and the refrigeration drawer is prevented, thus avoiding the drawer from being unable to be pulled out.

[0101] In this embodiment, the refrigeration drawer also includes a blocking member 17, which is located behind the flow guiding device 22, and the bottom of the blocking member 17 is lower than the top of the drawer back panel 16. When the drawer back panel 16 moves outward, the blocking member 17 can block the top of the drawer back panel 16, causing the drawer back panel 16 to flip backward. In this way, when the drawer back panel 16 moves outward, the blocking member 17 passively blocks the top of the drawer back panel 16, and the drawer back panel 16 automatically flips backward by utilizing the pulling action itself, while avoiding structural damage caused by the top of the drawer back panel 16 hitting the flow guiding device 22, making operation convenient.

[0102] In this embodiment, the blocking member 17 is a rubber strip to achieve cushioning during impact.

[0103] In this embodiment, the refrigeration drawer also includes a rope box 172, which is fixed inside the cooling cavity 12. The rope of the rope box 172 is connected to the upper part of the drawer back panel 16. When the drawer back panel 16 moves outward, the rope can pull the drawer back panel 16, causing the drawer back panel 16 to flip backward. In this way, when the drawer back panel 16 moves outward, the rope passively pulls the upper part of the drawer back panel 16, and the drawer back panel 16 is automatically flipped backward by the pull-out action itself, while avoiding structural damage caused by the top of the drawer back panel 16 hitting the guide device 22, and making operation convenient.

[0104] In this embodiment, a first magnet 173 and a second magnet 174 that magnetically attract each other can also be provided, respectively on the main body of the refrigeration drawer and the back panel 16 of the drawer. This allows the back panel 16 of the drawer to be reset by magnetic attraction after it is disengaged from the barrier 17 and the rope box 172 when the user pushes the refrigeration drawer back, thus avoiding a gap between the back panel 16 of the drawer and the refrigeration main body that affects the refrigeration effect.

[0105] In this embodiment, the blower devices 21 are symmetrically arranged, which can further increase the air volume while maintaining the symmetry of the airflow distribution, making it suitable for larger refrigeration drawers. In other embodiments, especially for smaller refrigeration drawers, the blower devices 21 can be centrally located, so that the cold air is evenly distributed in the circumferential direction, and each branch of the flow guide device 22 receives a basically equal airflow, ensuring the consistency of airflow at each blower outlet 32.

[0106] This embodiment also provides a refrigerator, which includes the refrigeration drawer as described above; the refrigerator also includes a control unit and a compressor (the relevant parts of the refrigerator are not shown in the figure), and the control unit, compressor, and blower device 21 are electrically connected. In this way, the existing cold source of the refrigerator can be used to achieve local rapid cooling of the refrigeration drawer, directly using the cold air generated by the existing refrigeration system of the refrigerator, without the need to add a separate refrigeration system (such as semiconductor, micro compressor, etc.). The setting of the control unit to coordinate the control of the compressor and blower device 21 can further improve the refrigeration efficiency.

[0107] like Figure 7 As shown, this embodiment provides a refrigeration method, which uses a refrigerator as described above;

[0108] The steps of the refrigeration method include:

[0109] S1, trigger rapid cooling command;

[0110] S2. After receiving the rapid cooling command, the control unit checks whether the compressor is running.

[0111] If the compressor is not running, the control unit will start the compressor.

[0112] If the compressor is already running, proceed to step S3;

[0113] S3. The control unit starts the blower 21 at its highest speed and runs continuously for a preset duration.

[0114] Cold air enters the air inlet 33 from the main air duct of the refrigerator, enters the cooling cavity 12 under the pressure of the blower 21, and is guided by the flow guide device 22.

[0115] In this way, the compressor is started first, followed by the blower 21, to ensure sufficient cold source. The blower 21 operates at its highest speed to achieve rapid cooling. After entering the air inlet 33 from the main air duct, the cold air is pressurized again by the blower 21 before entering the cooling chamber 12, and then evenly distributed to the inside of the drawer through the multiple air outlets 32 of the guide device 22. The pressurization compensates for the pressure drop loss in the main air duct, and the guide ensures uniform airflow coverage. The two work together to achieve efficient and uniform rapid cooling.

[0116] In this embodiment, the preset duration is 30 seconds to suit typical cooling needs. The user can manually trigger the cooling by controlling button 23, or the refrigerator system can automatically trigger a rapid cooling command based on the temperature sensor 15 detecting that the temperature inside the drawer is higher than a set threshold (e.g., higher than -5°C and the temperature rises sharply after the user places items inside).

[0117] In this embodiment, the cooling method further includes the following steps:

[0118] S4. Temperature sensor 15 monitors the internal temperature of the refrigeration drawer in real time, and the control unit dynamically adjusts the speed of blower 21 based on the difference between the internal temperature of the refrigeration drawer and the target temperature.

[0119] This allows the control unit to dynamically adjust the speed of the blower 21 based on the temperature difference between the inside of the drawer and the target temperature. When the temperature difference is large, the speed is increased to accelerate cooling, and when the temperature difference is small, the speed is reduced to avoid overcooling, thereby improving the accuracy of cooling and saving energy.

[0120] In this embodiment, S4 specifically includes:

[0121] S41. Obtain the initial temperature T1 inside the drawer and calculate the initial temperature difference ΔT1=T1-Tm, where Tm is the set temperature target.

[0122] S42. Determine the fan speed cooling level based on the initial temperature difference ΔT1;

[0123] S43. Set the fan operating parameters according to the determined rapid cooling level;

[0124] S44. Start the fan and run it according to the set parameters;

[0125] S45. During the cooling process, the internal temperature of the drawer is detected at a preset time interval Δt, and the real-time temperature drop rate v = ΔT / Δt is calculated.

[0126] S41. Compare the real-time temperature drop rate v with the expected temperature drop rate vm, and set the allowable error range δ.

[0127] If v > vm + δ, then reduce the fan speed;

[0128] If v < vm - δ, then increase the fan speed;

[0129] If |v - vm| ≤ δ, then maintain the current rotational speed.

[0130] Turn off the fan when the temperature inside the drawer reaches the target temperature.

[0131] In this embodiment, the cooling method further includes the following steps to achieve energy saving:

[0132] S5. After the rapid cooling mode ends, the control unit enters standby mode, waiting for the next start command.

[0133] In this embodiment, a smart refrigerator is also provided. The smart refrigerator equipped with the refrigeration drawer has a smart voice control module. The smart voice control module includes a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the controller controls the refrigerator to perform corresponding operations, thereby realizing intelligent control of the refrigerator and improving the user experience of using the smart refrigerator.

[0134] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A refrigerated drawer, characterized in that, It includes an air inlet cavity, a blower, and a cooling cavity, wherein the blower is located inside the air inlet cavity and is positioned close to the cooling cavity; The air inlet chamber and the cooling chamber are connected by an air vent and a ventilation opening; The air inlet cavity is connected to the outside through an air inlet; The air inlet is positioned corresponding to the location of the air blowing device; The ventilation opening is arranged around the blower device; The air inlet chamber is located above the cooling chamber, and the thickness of the air inlet chamber is less than the thickness of the cooling chamber.

2. The refrigerated drawer as described in claim 1, characterized in that, The refrigeration drawer also includes a flow guiding device, which is located between the air inlet cavity and the cooling cavity; The air guide device has multiple air inlets facing downwards and / or to the side; At least a portion of the flow guiding device is arranged around the blower.

3. The refrigerated drawer as described in claim 2, characterized in that, The refrigeration drawer also includes a temperature sensor, which is connected below the airflow guide device; The air vent is positioned away from the temperature sensor.

4. The refrigerated drawer as described in claim 2, characterized in that, The refrigeration drawer includes a drawer back panel, and the bottom of the deflector is positioned below the top of the drawer back panel; The back panel of the drawer can be moved horizontally in the direction of pulling out to remove the contents of the refrigeration drawer; The drawer back panel can be flipped backward to avoid the bottom of the flow guide during translation.

5. The refrigerated drawer as described in claim 4, characterized in that, The refrigeration drawer also includes a baffle, which is located behind the flow guiding device, and the bottom of the baffle is lower than the top of the drawer back panel. When the drawer back panel moves outward, the blocking member can block the top of the drawer back panel, causing the drawer back panel to flip backward.

6. The refrigerated drawer as described in claim 5, characterized in that, The refrigeration drawer also includes a rope box, which is fixed inside the cooling cavity, and the rope of the rope box is connected to the upper part of the back panel of the drawer. When the drawer back panel moves outward, the connecting rope can pull the drawer back panel, causing the drawer back panel to flip backward.

7. The refrigerated drawer as described in claim 1, characterized in that, In the refrigeration drawer, the blower is centrally located; and / or, The blower devices are symmetrically arranged in the refrigeration drawer.

8. A refrigerator, characterized in that, It includes the refrigeration drawer as described in any one of claims 1-7; The refrigerator also includes a control unit and a compressor, and the control unit is electrically connected to the compressor and the blower. The refrigerator's main air duct is connected to the air inlet.

9. A refrigeration method, characterized in that, It uses the refrigerator as described in claim 8; The refrigeration drawer also includes a flow guiding device, which is located between the air inlet cavity and the cooling cavity; The air guide device has multiple air inlets facing downwards and / or to the side; At least a portion of the flow guiding device is arranged around the blower device; The steps of the refrigeration method include: S1, trigger rapid cooling command; S2. After receiving the rapid cooling command, the control unit detects whether the compressor is in operation. If the compressor is not running, the control unit controls the compressor to start; If the compressor is already running, proceed to step S3; S3. The control unit controls the blower to start, with the highest speed, and to run continuously for a preset time. Cold air enters the air inlet from the main air duct of the refrigerator, enters the cooling cavity under the pressure of the blower, and is guided by the air guide device.

10. The refrigeration method as described in claim 9, characterized in that, The refrigeration drawer also includes a temperature sensor, which is connected below the airflow guide device; The air vent is positioned away from the temperature sensor; The cooling method further includes the following steps: S4. The temperature sensor monitors the internal temperature of the refrigeration drawer in real time, and the control unit dynamically adjusts the speed of the blower based on the difference between the internal temperature of the refrigeration drawer and the target temperature.

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