CN115371348A - Air supply control method of refrigerator and refrigerator - Google Patents

Abstract

The invention provides an air supply control method of a refrigerator and the refrigerator. Wherein the top and the below of the storage space of the refrigerator are respectively provided with a first air outlet and a second air outlet, the first air outlet and the second air outlet are respectively provided with a first air door and a second air door, a rack capable of moving up and down is arranged between the first air outlet and the second air outlet, and the air supply control method comprises the following steps: acquiring the actual position of the rack; determining a first air outlet area of the first air outlet and a second air outlet area of the second air outlet according to the actual position; and controlling the first air door to be a first opening and closing angle according to the first air outlet area, and controlling the second air door to be a second opening and closing angle according to the second air outlet area. According to the scheme, the air supply quantity of the storage space of the refrigerator is reasonably distributed, so that the temperature in the storage space is uniformly distributed.

Description

Refrigerator air supply control method and refrigerator

technical field

The invention relates to the technical field of household appliances, in particular to a refrigerator air supply control method and the refrigerator.

Background technique

With the development of society and the continuous improvement of people's living standards, people's pace of life is getting faster and faster, so they are more and more willing to buy a lot of food and put it in the refrigerator. The refrigerator has become one of the indispensable household appliances in people's daily life. .

The current refrigerator generally adjusts the air supply volume of the storage space by controlling the opening and closing angle of the damper at the air outlet. Moreover, the air outlets of the air duct of the refrigerator are generally located on both sides or in front of the air duct, and the positions are fixed. In the prior art, a temperature sensor is often used for control, and the temperature sensor has a certain delay, which affects the temperature adjustment in the storage space. In addition, the dampers in different positions are often controlled uniformly, which cannot take into account the actual temperature conditions in different areas of the storage space, resulting in uneven temperature distribution in the storage space and high overall energy consumption of the refrigerator.

Contents of the invention

An object of the present invention is to reasonably distribute the air supply volume of the storage space of the refrigerator so that the temperature distribution in the storage space is uniform.

A further object of the present invention is to reduce the energy consumption of the refrigerator while improving the storage effect and improving the user experience.

In particular, the present invention provides a method for controlling the air supply of a refrigerator, wherein a first air outlet and a second air outlet are respectively arranged above and below the storage space of the refrigerator, and the first air outlet and the second air outlet are respectively arranged There are a first air door and a second air door, and a shelf that can move up and down is arranged between the first air outlet and the second air outlet, and the air supply control method includes: obtaining the actual position of the shelf; The first air outlet area of the first air outlet and the second air outlet area of the second air outlet; and the first air door is controlled to be the first switch angle according to the first air outlet area, and the second air door is controlled to be the first switch angle according to the second air outlet area. Two switch angles.

Optionally, the rack is driven by a motor to move up and down, and the step of acquiring the actual position of the rack includes: acquiring the number of rotations of the motor, and determining the actual position of the rack according to the number of rotations.

Optionally, the step of determining the first air outlet area of the first air outlet and the second air outlet area of the second air outlet according to the actual position includes: calculating the upper volume and the lower volume of the shelf according to the actual position; The lower volume calculates the first air supply volume and the second air supply volume required above and below the shelf respectively; and determines the first air outlet area and the second air outlet area respectively according to the first air supply volume and the second air supply volume area.

Optionally, the step of calculating the upper volume and the lower volume of the shelf according to the actual position includes: determining a first height of the shelf from the top of the storage space and a second height from the bottom of the storage space according to the actual position; The length and width of the storage space are obtained; and the upper volume is obtained by multiplying the length and width by the first height, and the lower volume is obtained by multiplying the length and width by the second height.

Optionally, the step of calculating the first air supply volume and the second air supply volume required above and below the shelf according to the upper volume and the lower volume respectively includes: calculating the product of the upper volume and the first preset coefficient to obtain the first For the first air supply volume, calculate the product of the lower volume and the second preset coefficient to obtain the second air supply volume.

Optionally, the step of determining the first air outlet area and the second air outlet area respectively according to the first air supply volume and the second air supply volume includes: obtaining the wind speed of the air supply fan of the refrigerator; calculating the first air supply volume and the wind speed The quotient of the first air outlet area is obtained, and the second air outlet area is obtained by calculating the quotient of the second air supply volume and wind speed.

Optionally, the step of controlling the first damper to a first opening and closing angle according to the first air outlet area, and controlling the second damper to a second opening and closing angle according to the second air outlet area includes: querying the air supply information table to obtain the first The first switch angle corresponding to the air outlet area and the second switch angle corresponding to the second air outlet area, wherein the switch angles corresponding to different air outlet areas are pre-stored in the air supply information table; and controlling the first damper to be the first switch Angle, control the second damper to the second opening and closing angle.

Optionally, after the steps of controlling the first damper to the first switching angle and controlling the second damper to the second switching angle, the method further includes: acquiring the actual temperature of the storage space; judging whether the actual temperature reaches the boot temperature of the storage space; And if so, the refrigeration system of the refrigerator is controlled to be turned on to supply air to the storage space.

Optionally, an air duct is provided at the back of the storage space, and a first air outlet is provided at the upper part of the air duct, and a second air outlet is provided at the lower part of the air duct.

According to another aspect of the present invention, there is also provided a refrigerator, including a control device, the control device includes a processor and a memory, wherein the memory stores a control program, and when the control program is executed by the processor, it is used to realize the air supply of the above-mentioned refrigerator Control Method.

The air supply control method of the refrigerator and the refrigerator of the present invention, wherein a first air outlet and a second air outlet are respectively arranged above and below the storage space of the refrigerator, and a first air door is respectively arranged at the first air outlet and the second air outlet and the second air door, a shelf that can move up and down is arranged between the first air outlet and the second air outlet, and the first air outlet area and the first air outlet area of the first air outlet are determined according to the actual position by obtaining the actual position of the shelf. The second air outlet area of the second air outlet, according to the first air outlet area, the first air door is controlled to the first opening and closing angle, and the second air door is controlled to the second opening and closing angle according to the second air outlet area, a shelf that can move up and down It can meet the storage of items of different heights. According to the actual position of the shelf, the opening and closing angles of the first damper and the second damper are finally determined, and the air supply volume of the storage space of the refrigerator is reasonably distributed, so that the temperature distribution in the storage space is even.

Further, the air supply control method of the refrigerator and the refrigerator of the present invention calculate the upper volume and the lower volume of the shelf according to the actual position; respectively calculate the first air supply required above and below the shelf according to the upper volume and the lower volume and the second air supply volume; and determine the first air outlet area and the second air outlet area according to the first air supply volume and the second air supply volume, so that the air supply volume above and below the shelf is respectively the same as that of the shelf. The upper volume of the shelf matches the lower volume, which further ensures the uniform temperature distribution in the storage space, effectively improves the storage effect, and at the same time avoids excessive cooling in a small space, reduces the energy consumption of the refrigerator to a certain extent, and improves the user's use experience.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the internal structure of a storage space of a refrigerator according to an embodiment of the present invention;

Fig. 3 is a structural block diagram of a control device for a refrigerator according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of a method for controlling air supply of a refrigerator according to an embodiment of the present invention; and

Fig. 5 is a detailed flowchart of a method for controlling air supply of a refrigerator according to an embodiment of the present invention.

Detailed ways

This embodiment firstly provides a refrigerator, which can reasonably distribute the air supply volume of the storage space of the refrigerator, so that the temperature distribution in the storage space is uniform. Fig. 1 is a schematic structural diagram of a refrigerator 100 according to an embodiment of the present invention, and Fig. 2 is a schematic diagram of the internal structure of a storage space 111 of the refrigerator 100 according to an embodiment of the present invention. As shown in Figures 1 and 2, a first air outlet 131 and a second air outlet 132 are respectively provided above and below the storage space 111 of the refrigerator 100, and the first air outlet 131 and the second air outlet 132 are respectively provided with The first air door 141 and the second air door 142 are provided with a shelf 150 movable up and down between the first air outlet 131 and the second air outlet 132 . In a preferred embodiment, an air duct 112 is provided at the back of the storage space 111 , and a first air outlet 131 is provided at the top of the air duct 112 , and a second air outlet 132 is provided at the bottom of the air duct 112 .

Specifically, the shelf 150 can be driven by a motor to move up and down, that is, the shelf 150 is liftable. In addition, the motor can be provided with a Hall sensor, and the number of rotations of the motor can be obtained, so as to determine the actual position of the shelf 150 through the number of rotations. The opening and closing angles of the first air door 141 and the second air door 142 are adjustable. In a specific embodiment, when the opening and closing angles of the first air door 141 and the second air door 142 are 0°, they can be considered as completely closed; the first air door 141 When the switch angle with the second damper 142 is 90°, it can be considered as fully opened; when the switch angle between the first damper 141 and the second damper 142 is between 0° and 90°, it can be considered as partially opened.

It should be noted that the refrigerator 100 may generally include: a box body 110 and a door body 120 . Wherein, a storage space 111 is defined inside the box body 110 . The number and structure of the storage space 111 can be configured according to the requirements. Figure 1 shows the situation of the first space, the second space and the third space arranged in sequence up and down; the above spaces can be configured as refrigerated spaces and frozen spaces according to different purposes. , temperature-changing space or fresh-keeping space. Each storage space 111 can be divided into a plurality of storage areas by partition boards, and items can be stored by using the shelf 150 or the drawer.

The door body 120 is disposed on the front surface of the box body 110 for closing the storage space 111 . The door body 120 may be provided correspondingly to the storage space 111 , that is, each storage space 111 corresponds to one or more door bodies 120 . The quantity of the storage space 111 and the door body 120, and the function of the storage space 111 can be selected according to actual conditions. The refrigerator 100 in this embodiment corresponds to the first space, the second space, and the third space arranged up and down in sequence, and is respectively provided with a first door, a second door, and a third door. The door body 120 can be pivotally arranged on the front surface of the box body 110, and can also be opened in a drawer type to realize a drawer-type storage space, wherein the drawer-type storage space is often provided with metal slide rails, which can ensure that the drawer is opened The closing process is gentle and reduces noise. In the refrigerator 100 of this embodiment, the door opening method of the first space is pivotal opening, and the door opening methods of the second space and the third space are drawer opening.

The refrigerator 100 may further include a refrigeration system configured to provide cooling to the storage space 111 . The refrigeration system may be a compression refrigeration system, specifically, may include components such as an evaporator, a condenser, and a compressor. The refrigerating system provides different cooling amounts to various types of storage spaces 111 , so that the temperatures in various types of storage spaces 111 are also different. For example, the temperature in the refrigerated space is generally between 2°C and 10°C, preferably between 4°C and 7°C. The temperature range in the refrigerated space is typically -22°C to -14°C. The optimum storage temperatures for different types of articles are different, and thus the suitable storage spaces 111 are also different. For example, fruits and vegetables are suitable for storage in refrigerated space or fresh-keeping space, while meat food is suitable for storage in freezer space. Preferably, the liftable shelf 150 of this embodiment can be set in the refrigerated space for placing items in the refrigerated space.

The refrigerator 100 may further include a control device 200, and Fig. 3 is a structural block diagram of the control device 200 of the refrigerator 100 according to an embodiment of the present invention. The control device 200 includes a processor 210 and a memory 220, wherein the memory 220 stores a control program 221, and when the control program 221 is executed by the processor 210, it is used to implement the air supply control method of the refrigerator in any of the following embodiments.

This embodiment also provides a method for controlling air supply of a refrigerator, and FIG. 4 is a schematic diagram of a method for controlling air supply of a refrigerator according to an embodiment of the present invention. The air supply control method of the refrigerator can be implemented by using the refrigerator 100 in any of the above-mentioned embodiments. As shown in Figure 4, the air supply control method of the refrigerator performs the following steps in sequence:

Step S402, acquiring the actual position of the shelf 150;

Step S404, determining the first air outlet area of the first air outlet 131 and the second air outlet area of the second air outlet 132 according to the actual position;

Step S406, controlling the first damper 141 to a first opening and closing angle according to the first air outlet area, and controlling the second damper 142 to a second opening and closing angle according to the second air outlet area.

In the above steps, the step of acquiring the actual position of the shelf 150 in step S402 includes: acquiring the number of rotations of the motor, and determining the actual position of the shelf 150 according to the number of rotations. As mentioned above, the motor can be provided with a Hall sensor, and the number of rotations of the motor can be obtained through the Hall sensor, so as to determine the actual position of the shelf 150 through the number of rotations. In addition, it should be noted that the number of rotations can include positive numbers and negative numbers. A positive number means that the shelf 150 is rising, and a negative number means that the shelf 150 is going down. Therefore, the specific position after the rack 150 is raised or lowered can be accurately determined by the number of turns.

The specific steps of determining the first air outlet area of the first air outlet 131 and the second air outlet area of the second air outlet 132 according to the actual position in step S404 may include: calculating the upper volume and lower volume of the shelf 150 according to the actual position ; According to the upper volume and the lower volume, respectively calculate the first air supply volume and the second air supply volume required above and below the shelf 150; and determine the first air outlet according to the first air supply volume and the second air supply volume area and the second air outlet area.

More specifically, the step of calculating the upper volume and the lower volume of the shelf 150 according to the actual position may include: determining a first height of the shelf 150 from the top of the storage space 111 and a second height from the bottom of the storage space 111 according to the actual position. Two heights; obtain the length and width of the storage space 111 obtained in advance; and multiply the length and width by the first height to obtain the upper volume, and multiply the length and width by the second height to obtain the lower volume.

The step of calculating the first air supply volume and the second air supply volume required above and below the shelf 150 according to the upper volume and the lower volume respectively may include: calculating the product of the upper volume and the first preset coefficient to obtain the first air supply volume. For air volume, calculate the product of the lower volume and the second preset coefficient to obtain the second air supply volume. That is to say, the first air supply volume is proportional to the upper volume; the second air supply volume is proportional to the lower volume. It should be noted that the first preset coefficient and the second preset coefficient may be the same or different, and may be set in advance according to actual conditions and experimental results.

The step of determining the first air outlet area and the second air outlet area respectively according to the first air supply volume and the second air supply volume may include: obtaining the wind speed of the air supply fan of the refrigerator 100; calculating the quotient of the first air supply volume and the wind speed , get the first air outlet area, calculate the quotient of the second air supply volume and wind speed, and get the second air outlet area.

In step S406, the specific steps of controlling the first damper 141 to the first opening and closing angle according to the first air outlet area, and controlling the second damper 142 to the second opening and closing angle according to the second air outlet area may include: querying the air supply information table to match Obtain the first switch angle corresponding to the first air outlet area and the second switch angle corresponding to the second air outlet area, where the switch angles corresponding to different air outlet areas are pre-stored in the air supply information table; and control the first damper 141 is the first opening and closing angle, and the second damper 142 is controlled to be the second opening and closing angle.

In the air supply control method of the refrigerator in this embodiment, a first air outlet 131 and a second air outlet 132 are respectively arranged above and below the storage space 111 of the refrigerator 100, and the first air outlet 131 and the second air outlet 132 are respectively arranged There is a first air door 141 and a second air door 142, and a shelf 150 that can move up and down is arranged between the first air outlet 131 and the second air outlet 132. By obtaining the actual position of the shelf 150, the second door is determined according to the actual position. The first air outlet area of the first air outlet 131 and the second air outlet area of the second air outlet 132, control the first air door 141 to the first opening and closing angle according to the first air outlet area, and control the second air door according to the second air outlet area 142 is the second opening and closing angle. The shelf 150 that can move up and down can satisfy the storage of items of different heights. According to the actual position of the shelf 150, the opening and closing angles of the first damper 141 and the second damper 142 are finally determined to rationally allocate refrigerators. The air supply volume of the storage space 111 of 100 makes the temperature distribution in the storage space 111 uniform.

In some optional embodiments, the refrigerator 100 can achieve a higher technical effect through further optimization and configuration of the above steps. The following describes the air supply control of the refrigerator in this embodiment in conjunction with an optional execution process of this embodiment. The method is described in detail. This embodiment is only an example of the execution process. During specific implementation, the execution sequence and operating conditions of some steps may be modified according to specific implementation requirements. Fig. 5 is a detailed flowchart of a method for controlling air supply of a refrigerator according to an embodiment of the present invention. The air supply control method of the refrigerator comprises the following steps:

Step S502, obtaining the number of rotations of the motor, and determining the actual position of the shelf 150 according to the number of rotations;

Step S504, calculating the upper volume and lower volume of the shelf 150 according to the actual position;

Step S506, calculating the product of the upper volume and the first preset coefficient to obtain the first air supply volume, and calculating the product of the lower volume and the second preset coefficient to obtain the second air supply volume;

Step S508, obtaining the wind speed of the air supply fan of the refrigerator 100;

Step S510, calculating the quotient of the first air supply volume and wind speed to obtain the first air outlet area, and calculating the quotient of the second air supply volume and wind speed to obtain the second air outlet area;

Step S512, query the air supply information table to obtain the first switch angle corresponding to the first air outlet area and the second switch angle corresponding to the second air outlet area;

Step S514, controlling the first damper 141 to a first opening and closing angle, and controlling the second damper 142 to a second opening and closing angle.

In the above steps, the specific step of calculating the upper volume and lower volume of the shelf 150 according to the actual position in step S504 may include: determining the first height of the shelf 150 from the top of the storage space 111 and the distance from the storage space 111 according to the actual position. The second height at the bottom of the space 111; obtain the length and width of the storage space 111 obtained in advance; and multiply the length, width and the first height to obtain the upper volume, and multiply the length, width and the second height to obtain the lower volume.

In step S506, the product of the upper volume and the first preset coefficient is calculated to obtain the first air supply volume, and the product of the lower volume and the second preset coefficient is calculated to obtain the second air supply volume. In fact, the specific calculation process can be as follows: since the heat load is directly proportional to the volume, the heat load above the shelf 150 can be obtained according to the volume above, and the heat load below the shelf 150 can be obtained according to the volume below; When the temperature difference of the storage space 111 is constant, the air supply volume is proportional to the heat load. Therefore, the first air supply volume can be obtained according to the heat load above the shelf 150, and the first air supply volume can be obtained according to the heat load below the shelf 150. Get the second air supply volume. By integrating the above calculation process, it can be determined that the air supply volume is proportional to the volume. Therefore, by calculating the product of the upper volume and the first preset coefficient, the first air supply volume can be obtained, and by calculating the lower volume and the second preset coefficient. The product can get the second air supply volume. Wherein, the first preset coefficient and the second preset coefficient may be the same or different, and may be set in advance according to actual conditions and experimental results.

The switch angles corresponding to different air outlet areas are pre-stored in the air supply information table in step S512, so the first switch angle corresponding to the first air outlet area and the first switch angle corresponding to the second air outlet area can be obtained by querying the table. Second switch angle. Further, the first damper 141 is controlled to a first opening and closing angle, and the second damping door 142 is controlled to a second opening and closing angle.

It should be noted that after step S514 of controlling the first damper 141 to the first switching angle and controlling the second damper 142 to the second switching angle, it may further include: obtaining the actual temperature of the storage space 111; judging whether the actual temperature has reached The starting temperature of the storage space 111 ; and if so, controlling the refrigeration system of the refrigerator 100 to be turned on to supply air to the storage space 111 . That is to say, after the switch angles of the first damper 141 and the second damper 142 are determined in advance according to the actual position of the shelf 150, when the refrigeration system starts to cool, it is possible to realize the switching angle of the shelf 150 according to the first switch angle. The air is blown from above, and the air is blown to the bottom of the shelf 150 according to the second switch angle. It should be noted that each time the position of the shelf 150 is changed, its actual position can be judged, and then the opening and closing angles of the first damper 141 and the second damper 142 can be adjusted, so that the cooling starts The subsequent air supply conforms to the volume separation of the storage space 111 , effectively ensuring uniform temperature distribution in the storage space 111 . Moreover, when the actual temperature of the storage space 111 reaches the shutdown temperature, the refrigeration system may be controlled to shut down, and no air is sent to the storage space 111 any more.

The air supply control method of the refrigerator in this embodiment calculates the upper volume and the lower volume of the shelf 150 according to the actual position; calculates the first air supply volume and the required first air volume above and below the shelf 150 according to the upper volume and the lower volume respectively. The second air supply volume; and according to the first air supply volume and the second air supply volume, respectively determine the first air outlet area and the second air outlet area, so that the air supply volume above and below the shelf 150 is respectively the same as that of the shelf The upper and lower volumes of the refrigerator 150 match to further ensure that the temperature distribution in the storage space 111 is even and effectively improve the storage effect. User experience.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. An air supply control method of a refrigerator, wherein a first air outlet and a second air outlet are respectively arranged above and below a storage space of the refrigerator, a first air door and a second air door are respectively arranged at the first air outlet and the second air outlet, a rack capable of moving up and down is arranged between the first air outlet and the second air outlet, and the air supply control method comprises the following steps:

acquiring an actual position of the rack;

determining a first air outlet area of the first air outlet and a second air outlet area of the second air outlet according to the actual position; and

and controlling the first air door to be a first switch angle according to the first air outlet area, and controlling the second air door to be a second switch angle according to the second air outlet area.

2. The blowing control method of a refrigerator according to claim 1,

the rack is driven by a motor to move up and down, and

the step of obtaining the actual position of the rack comprises: and acquiring the number of rotation turns of the motor, and determining the actual position of the rack according to the number of rotation turns.

3. The method of controlling air supply to the refrigerator according to claim 1, wherein the step of determining a first air outlet area of the first air outlet and a second air outlet area of the second air outlet according to the actual position includes:

calculating an upper volume and a lower volume of the rack according to the actual position;

respectively calculating a first air supply quantity and a second air supply quantity required above and below the rack according to the upper volume and the lower volume; and

and respectively determining the first air outlet area and the second air outlet area according to the first air supply quantity and the second air supply quantity.

4. The blowing control method of the refrigerator according to claim 3, wherein the step of calculating an upper volume and a lower volume of the rack from the actual position includes:

determining a first height of the rack from the top of the storage space and a second height of the rack from the bottom of the storage space according to the actual position;

acquiring the length and the width of the storage space obtained in advance; and

multiplying the length, width and the first height to obtain the upper volume, and multiplying the length, width and the second height to obtain the lower volume.

5. The method of controlling supply of air to a refrigerator according to claim 4, wherein the step of calculating a first amount of supply of air and a second amount of supply of air required above and below the rack from the upper volume and the lower volume, respectively, comprises:

calculating the product of the upper volume and a first preset coefficient to obtain the first air supply quantity,

and calculating the product of the lower volume and a second preset coefficient to obtain the second air supply quantity.

6. The method for controlling supply of air to a refrigerator according to claim 5, wherein the step of determining the first outlet area and the second outlet area from the first supply air amount and the second supply air amount, respectively, comprises:

acquiring the wind speed of a wind supply fan of the refrigerator;

calculating the quotient of the first air supply quantity and the air speed to obtain the first air outlet area,

and calculating the quotient of the second air supply quantity and the air speed to obtain the second air outlet area.

7. The method of claim 1, wherein the step of controlling the first damper to a first opening/closing angle according to the first air outlet area and the step of controlling the second damper to a second opening/closing angle according to the second air outlet area comprises:

inquiring an air supply information table to obtain the first switch angle corresponding to the first air outlet area and the second switch angle corresponding to the second air outlet area in a matching manner, wherein the air supply information table is prestored with different switch angles corresponding to the air outlet areas; and

and controlling the first air door to be the first switch angle, and controlling the second air door to be the second switch angle.

8. The air supply control method of the refrigerator according to claim 1, further comprising, after the steps of controlling the first damper to the first opening and closing angle and controlling the second damper to the second opening and closing angle:

acquiring the actual temperature of the storage space;

judging whether the actual temperature reaches the starting temperature of the storage space or not; and

if so, controlling a refrigerating system of the refrigerator to be started, and supplying air to the storage space.

9. The air supply control method of the refrigerator according to claim 1,

the back of the storage space is provided with an air duct, the upper portion of the air duct is provided with the first air outlet, and the lower portion of the air duct is provided with the second air outlet.

10. A refrigerator comprising a control device including a processor and a memory, wherein the memory stores a control program, and the control program is executed by the processor for implementing the air supply control method of the refrigerator according to any one of claims 1 to 9.

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