CN112013601A

CN112013601A - Control method of refrigerating and freezing device

Info

Publication number: CN112013601A
Application number: CN201910470137.6A
Authority: CN
Inventors: 崔展鹏; 姬立胜; 程学丽; 李春阳
Original assignee: Qingdao Haier Co Ltd; Qingdao Haier Refrigerator Co Ltd
Current assignee: Qingdao Haier Co Ltd; Qingdao Haier Refrigerator Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-12-01
Anticipated expiration: 2039-05-31
Also published as: CN112013601B

Abstract

The invention provides a control method of a refrigerating and freezing device. The method comprises the following steps: acquiring information of the storage space of the placed article to obtain the storage space to be controlled; judging whether first temperature control information for controlling the storage space to be controlled is received or not, and if so, controlling the corresponding opening and closing device according to the first temperature control information so as to control the storage space to be controlled; otherwise, acquiring information of the articles placed in the storage space to be controlled to obtain article information; and controlling the corresponding opening and closing device according to the article information so as to control the storage space to be controlled. Independent adjustable temperature control of different refrigerated temperature zones is realized through a mode of accurate air supply and independent air return. The temperature of the corresponding storage subareas can be manually or automatically adjusted according to the types of the articles placed in the refrigerator, so that the food is stored at the optimal storage temperature, and the optimal fresh-keeping effect of each subarea of the refrigerator is achieved.

Description

Control method of refrigerating and freezing device

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a control method of a refrigeration and freezing device.

Background

With the development of social economy and the improvement of living standard of people, the refrigerator also becomes an indispensable household appliance in daily life of people. The existing refrigerator cold storage chambers are uniformly controlled in temperature, each chamber is uniformly set to be 0-5 ℃, and the optimal storage temperature of all foods is different. If the user sets the temperature to be 0 ℃ low gear, the temperature of the whole refrigerating chamber is about 0 ℃. When food with the optimal temperature of more than 5 ℃ is stored at the temperature, the fresh-keeping period of the food can be greatly shortened, and the deterioration and the putrefaction of the food are accelerated. Namely, the air duct of the existing air-cooled refrigerator supplies air to the whole refrigerating chamber, and only the temperature of the whole refrigerating chamber can be controlled.

Disclosure of Invention

In view of the above problems, the present invention has been made to provide a control method of a refrigerating and freezing device that overcomes or at least partially solves the above problems, and is capable of realizing independent partitions of a refrigerating compartment of a refrigerator, enabling the refrigerating compartment to have at least two storage partitions with storage temperatures, and enabling foods to be stored at optimum storage temperatures by manually or automatically adjusting the temperatures of the respective storage partitions according to the kinds of articles to be put in.

Therefore, the invention provides a control method of a refrigerating and freezing device, wherein the refrigerating and freezing device comprises a storage compartment and a plurality of opening and closing devices; the storage chamber is divided into a plurality of storage spaces; each storage space is provided with an air return inlet and at least one air supply outlet; each opening and closing device is arranged at the at least one air supply outlet of one storage space and is configured to control the air inlet of the corresponding storage space by controlling the opening and closing of the corresponding at least one air supply outlet; and the control method comprises the following steps:

acquiring information of the storage space of the placed article to obtain the storage space to be controlled;

judging whether first temperature control information for controlling the storage space to be controlled is received or not, and if so, controlling the corresponding opening and closing device according to the first temperature control information so as to control the storage space to be controlled;

otherwise, acquiring information of the articles placed in the storage space to be controlled to obtain article information; and controlling the corresponding opening and closing device according to the article information so as to control the storage space to be controlled.

Optionally, a plurality of air supply outlets are arranged on one space wall of each storage space, and the air supply outlets are arranged at intervals along a circumferential direction; each opening and closing device is a shielding rotary disc and is rotatably arranged at the plurality of air supply openings of one storage space, each shielding rotary disc is rotatably arranged around the axis corresponding to the circumferential direction, and each shielding rotary disc is provided with a plurality of communicating holes arranged at intervals along the corresponding circumferential direction so as to enable at least one of the corresponding plurality of air supply openings to be communicated with the corresponding storage space or disconnect the plurality of air supply openings from the corresponding storage space through the corresponding communicating holes when rotating to a preset position.

Optionally, the item information includes an unidentifiable item and an identifiable specific item; and controlling the corresponding opening and closing device according to the article information includes:

if the article information is that the article cannot be identified, controlling the corresponding opening and closing device according to preset second temperature control information;

and if the article information is the identifiable specific article, acquiring third temperature control information corresponding to the identifiable specific article, and controlling the corresponding opening and closing device according to the third temperature control information.

Optionally, the refrigerating and freezing device further comprises a camera device configured to shoot the storage space and the articles in the storage space;

shooting and acquiring information of the storage space of the placed article through the camera device; and

and shooting through the camera device to acquire the information of the articles placed in the storage space to be controlled.

Optionally, the second temperature control information includes a target temperature range, and the target temperature range is 2 ℃ to 7 ℃.

Optionally, four air supply outlets are arranged on one space wall of each storage space and are uniformly distributed along the circumferential direction;

each shelter from on the carousel the intercommunicating pore includes: the first communication hole, the second communication hole, the third communication hole and the fourth communication hole are uniformly distributed along the circumferential direction and are sequentially arranged along the clockwise direction, the fifth communication hole and the sixth communication hole are uniformly distributed between the first communication hole and the second communication hole, the seventh communication hole and the eighth communication hole are uniformly distributed between the second communication hole and the third communication hole, and the ninth communication hole is arranged between the third communication hole and the fourth communication hole; and is

And a connecting line between the hole centers of the ninth communication hole and the third communication hole penetrates through the disk center of the shielding rotary disk.

Optionally, the storage spaces are arranged in two rows, and each row of the storage spaces is arranged in sequence along the up-down direction;

one space wall of each storage space is a rear wall of the storage space;

the air supply duct is arranged at the central position of the rear part of the storage compartment;

a static turntable is arranged on one space wall of each storage space, and a plurality of air supply outlets are arranged on the static turntable;

each air return opening is arranged at one end of the lower portion of the rear wall of the corresponding storage space.

Optionally, the refrigeration and freezing apparatus further comprises:

the door body is arranged in the storage compartment and is configured to open or close the storage compartment;

the bottle seats are arranged on the rear side of the door body, each bottle seat is positioned on the front side of one horizontal partition plate, and each bottle seat is in contact with the horizontal partition plate when the door body is closed; and

the door body is provided with a vertical partition plate, the vertical partition plate is arranged on the front side of the door body, and the vertical partition plate is arranged on the rear side of the door body.

Optionally, the refrigeration and freezing apparatus further comprises:

a shift position generation device configured to generate a plurality of shift position instruction groups; each gear instruction group comprises a plurality of gear instructions, and each gear instruction group correspondingly controls one storage space; each gear instruction comprises control information for enabling the corresponding storage space to be located at a target temperature or in a target temperature range, so that the refrigerating and freezing device controls the shielding rotary disc to rotate according to each gear instruction, and then the temperature in the corresponding storage space is controlled.

Optionally, the gear generation device includes a plurality of display control panels disposed on an inner sidewall of each storage space, and each display control panel is configured to receive a signal and generate the gear instruction of one gear instruction group; each display control panel is further configured to display a suggestion of the type of the stored articles in the corresponding storage space; or the like, or, alternatively,

the gear generation device comprises a plurality of adjusting buttons and indication icons which are arranged corresponding to each gear instruction of each adjusting button; each indication icon at least comprises information suggesting the type of the stored articles in the corresponding storage space.

In the control method of the refrigerating and freezing device, because the plurality of storage spaces are arranged, each storage space is provided with the shielding rotary disc capable of controlling the air inlet amount and the air return opening, the independent partition of the refrigerating chamber of the refrigerator can be realized, and the refrigerating chamber can be provided with at least two storage partitions with storage temperatures, so that a user can place different foods in the corresponding optimal storage environment area according to the needs of the user, and the user is guided to correctly place the optimal storage space of the foods. The refrigeration and freezing device can realize accurate temperature control in different areas, and realize independent adjustable temperature control in different refrigerated temperature areas through accurate independent air supply and independent air return. Particularly, the temperature of the corresponding storage subarea can be manually or automatically adjusted according to the type of the placed articles, so that the food is stored at the optimal storage temperature, and the optimal fresh-keeping effect of each subarea of the refrigerator is achieved.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic rear interior view of a refrigeration freezer apparatus according to one embodiment of the present invention;

FIG. 2 is a schematic block diagram of a stationary turntable in the refrigeration chiller apparatus of FIG. 1;

fig. 3 is a schematic configuration view of a shield turntable in the refrigerating and freezing apparatus shown in fig. 1;

FIG. 4 is a schematic block diagram of a state in which a stationary turntable and a shield turntable in the refrigerating and freezing apparatus of FIG. 1 are engaged;

FIG. 5 is a schematic block diagram of a state in which a stationary turntable and a shield turntable in the refrigerating and freezing apparatus of FIG. 1 are engaged;

FIG. 6 is a schematic block diagram of a state in which a stationary turntable and a shield turntable in the refrigerating and freezing apparatus of FIG. 1 are engaged;

FIG. 7 is a schematic flow chart of a method of controlling the refrigeration chiller of FIG. 1

Fig. 8 is a schematic flow chart of a control method of the refrigerating and freezing apparatus shown in fig. 1.

Detailed Description

Fig. 1 is a schematic front view of a refrigeration and freezing apparatus according to an embodiment of the present invention. As shown in fig. 1, and with reference to fig. 2-6, an embodiment of the present invention provides a refrigeration and freezing apparatus. The refrigerating and freezing device comprises a box body 20, and a storage compartment is defined in the box body 20. The refrigerating and freezing device is also provided with a door body for opening and closing the storage chamber. Wherein, the storage chamber can be a refrigeration chamber. A freezing chamber 22 and a temperature-changing chamber may also be provided within the housing 20. Further, the temperature within the freezing compartment 22 is typically in the range of-22 ℃ to-14 ℃. The temperature-changing chamber can be adjusted to-18 ℃ to 8 ℃ at will.

The refrigeration and freezing device also has a refrigeration system configured to provide refrigeration to the storage compartment. In some embodiments, the refrigeration system may be a refrigeration cycle system composed of a compressor, a condenser, a throttling device, an evaporator, and the like. The evaporator is configured to provide cooling directly or indirectly to the storage compartment. Since the refrigeration system of a refrigeration and freezing apparatus is known per se to those skilled in the art, it will not be described herein. And a cooling chamber may be provided in the case 20, and particularly, may be provided at a rear side of the storage compartment. When a freezing chamber is provided in the cabinet 20, the cooling chamber is preferably provided at the rear side of the freezing chamber. The cooling chamber is used for accommodating the evaporator.

In some embodiments of the present invention, as shown in fig. 1, the storage compartment may be divided into a plurality of storage spaces 21. Specifically, the storage compartment may be partitioned into the plurality of storage spaces 21 by at least one horizontal partition plate 41 provided in the storage compartment. Or at least one horizontal partition plate 41 and at least one vertical partition plate 42 are arranged in the storage compartment, so that the storage compartment is divided into a plurality of storage spaces 21 by the horizontal partition plates 41 and the vertical partition plates 42.

Further, as shown in fig. 1 and 2, each storage space 21 may have at least one air blowing port. For example, a plurality of air supply ports 31 are provided on a space wall of each storage space 21, and the plurality of air supply ports 31 are provided at intervals in a circumferential direction. For example, a stationary turntable 30 is provided on one compartment wall of each storage space 21, and a plurality of air blowing ports 31 are provided on the stationary turntable 30. The bottom of each storage space 21 is provided with a return air inlet 32. The refrigerating and freezing apparatus further includes an air duct device having an air supply duct 33 communicating the cooling compartment with each air supply port 31, and a return air duct communicating each return air port 32 with the cooling compartment.

In particular, the refrigerating and freezing device further comprises a plurality of opening and closing devices, each opening and closing device is installed at least one air supply opening of one storage space and is configured to control air supply of the corresponding storage space by controlling opening and closing of the corresponding at least one air supply opening. For example, the opening and closing device may be the shutter disk 50. Each shielding rotary disc 50 is rotatably installed at the plurality of air blowing ports 31 of one storing space 21, and each shielding rotary disc 50 is rotatably provided around the axis of the corresponding circumferential direction, and each shielding rotary disc 50 has a plurality of communication holes 51 provided at intervals in the corresponding circumferential direction to communicate at least one of the corresponding plurality of air blowing ports 31 with the corresponding storing space 21 via the corresponding communication hole 51 or disconnect the plurality of air blowing ports 31 from the corresponding storing space 21 at the rotation to a preset position. That is, the shielding rotary disc 50 shields different numbers of the air supply openings 31 by rotating, so that the air intake amount in the corresponding storage space 21 can be adjusted.

In the embodiment of the present invention, each storage space 21 has a shielding rotary disc 50 capable of controlling the amount of intake air, that is, the amount of intake air is adjustable to adjust and control the temperature of the temperature zone of the corresponding storage space 21, each storage space 21 has an air return opening 32, so that the independent partition of the cold storage compartment of the refrigerator can be realized, and the cold storage compartment can have at least two storage partitions with storage temperatures, so that a user can place different foods in the corresponding optimal storage environment area according to the needs of the user, and the user can be guided to correctly place the optimal storage space for the foods. Namely, the refrigeration and freezing device can realize accurate temperature control in different areas, and realize independent adjustable temperature control in different refrigerated temperature areas by accurately and independently supplying air and independently returning air through the shielding rotary disc 50. Independent air return openings 32 are arranged in each zone to avoid interference among different temperature zones, namely, disturbance is reduced, and the temperature can be accurately adjusted.

In some embodiments of the present invention, as shown in fig. 2 to 6, four air supply ports 31 are provided on one compartment wall of each storage space 21, and are uniformly distributed along the circumferential direction, and the air supply ports may be a first air supply port 34, a second air supply port 35, a third air supply port 36 and a fourth air supply port 37 along the clockwise direction. The communication hole 51 on each shielding rotary disk 50 includes: a first communication hole 61, a second communication hole 62, a third communication hole 63 and a fourth communication hole 64 which are uniformly distributed in a circumferential direction and arranged in a clockwise direction, a fifth communication hole 65 and a sixth communication hole 36 which are uniformly distributed between the first communication hole 61 and the second communication hole 62, a seventh communication hole 67 and an eighth communication hole 68 which are uniformly distributed between the second communication hole 62 and the third communication hole 63, and a ninth communication hole 69 which is arranged between the third communication hole 63 and the fourth communication hole 64; and a connecting line between the hole centers of the ninth communicating hole 69 and the third communicating hole 63 passes through the center of the shielding turntable 50.

As shown in fig. 4, the four supply ports 31 can be made to communicate with the respective storage spaces 21, i.e., the first supply port 34, the second supply port 35, the third supply port 36, and the fourth supply port 37 are aligned with the first communication hole 61, the second communication hole 62, the third communication hole 63, and the fourth communication hole 64, respectively. As shown in fig. 5, the three supply ports 31 are communicated with the corresponding storage space 21, that is, the blocking dial 50 blocks the first supply port 34, the fifth communication hole 65 is aligned with the second supply port 35, the seventh communication hole 67 is aligned with the third supply port 36, and the ninth communication hole 69 is aligned with the fourth supply port 37. As shown in fig. 6, the two supply ports 31 may be communicated with the corresponding storage space 21, that is, the blocking dial 50 blocks the first supply port 34 and the fourth supply port 37, the sixth communication hole 36 is aligned with the second supply port 35, and the eighth communication hole 68 is aligned with the third supply port 36.

In some alternative embodiments of the present invention, the number of the air supply openings 31 on the stationary turntable 30 may have other values, and the number of the communication holes 51 on the shielding turntable 50 may have other values. That is, theoretically, an infinite number of fitting states can be realized between the two rotating disks.

In some embodiments of the present invention, the plurality of storage spaces 21 are arranged in two rows, and each row of storage spaces 21 is sequentially arranged in the up-down direction. One space wall of each storage space 21 is a rear wall of the storage space 21; the air supply duct 33 is disposed at the rear center of the storage compartment. Each of the return air openings 32 may be provided at one end of the lower portion of the rear wall of the corresponding storage space 21. At least one storage space 21 is provided with a drawer, for example, the two storage spaces 21 at the lowest side can be provided with drawers.

In some embodiments of the present invention, a sealing device is provided between each horizontal partition 41 and the tank 20 to make a sealing connection. The rear side of the door body may also be provided with a corresponding structure to partition the plurality of storage spaces 21 as much as possible. For example, the refrigerated freezer may further include at least one bottle mount and at least one vertical partition structure. At least one bottle seat is arranged at the rear side of the door body, each bottle seat is positioned at the front side of one horizontal partition plate 41, and when the door body is closed, each bottle seat is in contact with the horizontal partition plate 41. At least one vertical partition structure is arranged at the rear side of the door body. The partition plate, which can be vertically arranged, of each vertical partition structure is located on the front side of one vertical partition plate 42, and when the door body is closed, each vertical partition structure is in contact with the vertical partition plate 42.

In some embodiments of the invention, the refrigeration and freezing apparatus may further comprise a gear generation device. The gear generation device is configured to generate a plurality of gear instruction sets; each gear instruction group comprises a plurality of gear instructions, and each gear instruction group correspondingly controls one storage space 21; each gear instruction comprises control information for enabling the corresponding storage space 21 to be at a target temperature or within a target temperature range, so that the refrigerating and freezing device controls the shielding rotary disc 50 according to each gear instruction, and further controls the temperature in the corresponding storage space 21.

For example, in some embodiments, the gear generation device includes a plurality of display control panels disposed on an inner sidewall of each storage space 21, each display control panel configured to receive a signal and generate a gear command of one gear command group; and each display control panel is also configured to display a recommendation for the type of articles stored in the corresponding storage space 21. Each display control panel may be disposed adjacent to a corresponding storage space 21. Furthermore, each display control panel can adopt sliding, clicking and other modes to input information. In some alternative embodiments of the present invention, the gear generating device may be the general touch display screen of a refrigeration and freezing device.

In still other embodiments, the range generating means includes a plurality of adjustment buttons, and an indication icon provided corresponding to each range instruction of each adjustment button. Each of the indication icons includes at least information suggesting a kind of the stored article in the corresponding storage space 21. Each adjusting button can be a mechanical button structure such as a knob. The indication icon may be an icon arranged near the adjusting button and arranged inside the refrigerator body 20, and may be arranged in a manner of engraving, silk-screen printing, hollow structure, and the like. For example, the indication icon may be a symbol representing an article suggesting a kind of the article stored in the corresponding storage space 21. Further, each indication icon includes at least a target temperature or a target temperature range within the corresponding storage space 21. The range generating device may further include a plurality of indicator lights. Each gear instruction of each adjustment button is associated with an indicator light such that when the adjustment button indicates a respective gear instruction, the respective indicator light is turned on, thereby causing the respective indicator view to be highlighted, i.e., illuminated, for viewing by the user. Alternatively, the indication icon may be displayed by using a display screen, and a combination of the mechanical key and the display screen may be achieved. Further, the indication icon can also be directly a text, i.e. the display screen can display all information associated with the corresponding gear instruction.

In this embodiment, because of having the shielding rotary plate 50 and the gear generating device, the independent partition of the refrigerating chamber of the refrigerator can be realized, and each partition can realize independent adjustment of multiple levels of temperatures such as 2 ℃, 5 ℃, 10 ℃ (low, medium and high), so that the user can adjust the temperature of each storage space 21 of the refrigerator according to the needs and habits of the user, and through the balance control of temperature and humidity, the optimal storage environment area for different foods is achieved, and the optimal storage space for the food is guided to be correctly placed by the user. Before this application, the temperature in the cold storage space of a refrigerator was the same, while the optimal storage temperature and humidity for different foods were different, causing users to dare to put some low storage temperature ready-to-eat, tropical fruits into the refrigerator. The food can not be eaten immediately when the temperature is too low, and the user can only put the food outside; the tropical fruits need to be stored in an interval of 8-10 ℃ for the best storage time and are not dare to be placed in a refrigerator. The food put into the refrigerator is not in the optimal temperature range, the food decays fast, and the waste is serious. The embodiment of the invention can freely adjust the temperature of each storage space refrigerated by the refrigerator according to the requirements of users, so that food is stored in the optimal storage space, and the users are guided to correctly place the optimal storage space for the food. Every storing space 21 all has self independent air-out and independent return air, and every storing space 21 can both realize the many grades of changes of temperature, freely switches.

Further, when the number of gear commands in each gear command group is large, for example, each target temperature in the storage space 21 changes by one degree centigrade, the gear commands can be used as a new gear. This may also be referred to as stepless gear adjustment. For example, there may be 11 steps between 0 ℃ and 10 ℃, so that each storage space 21 may be adjusted to any temperature between 0 ℃ and 10 ℃. Of course, only three ranges of 0 ℃ ice temperature area, 4 ℃ golden area and 10 ℃ hot band fruit area can be arranged between 0 ℃ and 10 ℃.

Fig. 7 is a schematic flow chart of a control method of the refrigerating and freezing apparatus shown in fig. 1. As shown in fig. 7, the embodiment of the present invention further provides a method for controlling a refrigeration and freezing apparatus. The control method comprises the following steps:

and acquiring the information of the storage space 21 in which the articles are put to obtain the storage space to be controlled. I.e. to determine which storage space 21 needs to be controlled.

Judging whether first temperature control information for controlling the storage space to be controlled is received or not, and if so, controlling the corresponding opening and closing device according to the first temperature control information so as to control the storage space to be controlled; otherwise, acquiring information of the articles placed in the storage space to be controlled to obtain article information; and controlling the corresponding opening and closing device according to the article information so as to control the storage space to be controlled.

Specifically, as shown in fig. 8, a user may input first temperature control information of the storage space to be controlled through the gear generating device within a preset time period before or after the articles are put into the storage space 21, so as to customize the storage temperature according to the requirement. That is to say, judging whether the first temperature control information for controlling the storage space to be controlled is received specifically includes: and judging whether first temperature control information for controlling the storage space to be controlled is received within a preset time period before or after the information of the storage space of the placed article is acquired. Of course, if the user does not define the storage temperature, the refrigeration and freezing device can automatically identify the food type in each partition by the control program and automatically adjust the food type to the optimal storage temperature. And when the user wants to change the first temperature control information at any time, the first temperature control information can be input through the gear generation device, and the refrigeration and freezing device is controlled according to the updated first temperature control information.

In some embodiments of the invention, the item information includes an unidentifiable item and an identifiable specific item. Controlling the corresponding opening and closing device according to the article information includes: if the article information is that the article cannot be identified, controlling the corresponding opening and closing device according to preset second temperature control information; and if the article information is the identifiable specific article, acquiring third temperature control information corresponding to the identifiable specific article, and controlling the corresponding opening and closing device according to the third temperature control information. The unidentifiable object mainly refers to food such as leftovers, and the second temperature control information includes a target temperature range of 2 ℃ to 7 ℃. Namely, if the food in the temperature zone is of a type which can not be judged, such as leftovers, the temperature in the temperature zone is controlled according to the conventional temperature of the refrigerating chamber, namely 2-7 ℃. If the food type can be judged to be the pre-input food of the refrigerator, the temperature is controlled according to the optimal storage temperature of the pre-input food, and for example, the third temperature control information can be obtained through the corresponding relation table of the food type and the third temperature control information.

In some embodiments of the present invention, the refrigeration and freezing apparatus further comprises a camera device configured to photograph the storage space and the items within the storage space. Shooting and acquiring information of the storage space of the placed article through a camera device; and shooting through the camera device to acquire the information of the articles placed in the storage space to be controlled. Namely, the food putting area is determined by photographing, and the kind of the food is judged.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A control method of a refrigeration and freezing device is characterized in that the refrigeration and freezing device comprises a storage compartment and a plurality of opening and closing devices; the storage chamber is divided into a plurality of storage spaces; each storage space is provided with an air return inlet and at least one air supply outlet; each opening and closing device is arranged at the at least one air supply outlet of one storage space and is configured to control the air inlet of the corresponding storage space by controlling the opening and closing of the corresponding at least one air supply outlet; and the control method comprises the following steps:

2. The control method according to claim 1,

a plurality of air supply outlets are arranged on one space wall of each storage space and are arranged at intervals along the circumferential direction; each opening and closing device is a shielding rotary disc and is rotatably arranged at the plurality of air supply openings of one storage space, each shielding rotary disc is rotatably arranged around the axis corresponding to the circumferential direction, and each shielding rotary disc is provided with a plurality of communicating holes arranged at intervals along the corresponding circumferential direction so as to enable at least one of the corresponding plurality of air supply openings to be communicated with the corresponding storage space or disconnect the plurality of air supply openings from the corresponding storage space through the corresponding communicating holes when rotating to a preset position.

3. The control method according to claim 1,

the article information comprises an unidentifiable article and an identifiable specific article; and controlling the corresponding opening and closing device according to the article information includes:

4. The control method of claim 1, wherein the refrigeration freezer further comprises a camera configured to capture the storage space and the items within the storage space;

5. The control method according to claim 3,

the second temperature control information includes a target temperature range, the target temperature range being 2 ℃ to 7 ℃.

6. The control method according to claim 2,

the number of the air supply outlets arranged on one space wall of each storage space is four, and the four air supply outlets are uniformly distributed along the circumferential direction;

7. The control method according to claim 2,

the storage spaces are arranged into two rows, and each row of storage spaces is sequentially arranged along the up-down direction;

one space wall of each storage space is a rear wall of the storage space;

8. The control method of claim 7, wherein the refrigeration freezer further comprises:

9. The control method according to claim 2, wherein the refrigeration freezing apparatus further comprises:

10. The control method according to claim 9,

the gear generation device comprises a plurality of display control panels arranged on the inner side wall of each storage space, and each display control panel is configured to receive signals and generate the gear instruction of one gear instruction group; each display control panel is further configured to display a suggestion of the type of the stored articles in the corresponding storage space; or the like, or, alternatively,