WO2020228414A1

WO2020228414A1 - Refrigerating and freezing device

Info

Publication number: WO2020228414A1
Application number: PCT/CN2020/079992
Authority: WO
Inventors: 朱小兵; 费斌; 程学丽; 李春阳; 姬立胜; 崔展鹏
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2019-05-10
Filing date: 2020-03-18
Publication date: 2020-11-19
Also published as: JP2022531013A; EP3951291B1; CN111912153A; EP3951291A1; EP3951291A4; KR102580949B1; JP7280978B2; KR20210152545A

Abstract

A refrigerating and freezing device, comprising: a first storage compartment which is divided into at least two storage spaces; a cooling chamber; an air path system which is provided with at least two air supply ports, at least two first air return ports and an on-off control device, each air supply port communicating with the cooling chamber and one storage space, each first air return port communicating with one storage space and the cooling chamber, and the on-off control device controlling airflow from the cooling chamber to flow towards one or more of the at least two air supply outlets so as to control all or part of the airflow to flow towards a corresponding storage space; and a gear generation device which is configured to generate at least two gear instruction groups, each gear instruction group comprising a plurality of gear instructions and correspondingly controlling one storage space, wherein each gear instruction comprises control information that causes the corresponding storage space to be at a target temperature so that the refrigerating and freezing device controls the on-off control device according to each gear instruction so as to control the temperature within the corresponding storage space.

Description

Refrigeration and freezing device

Technical field

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

Background technique

With the development of social economy and the improvement of people's living standards, refrigerators have also become indispensable household appliances in people's daily lives. In the existing refrigerator refrigerating compartment, for unified temperature control, each layer is set at a uniform temperature of 0-5°C, and the optimal storage temperature of all foods is different. If the user sets the temperature to a low level of 0°C, the temperature of the entire refrigerated compartment is around 0°C. The best storage temperature is greater than 5°C if the food is stored at this temperature, it will greatly shorten the food preservation period and accelerate the deterioration of the food.

Summary of the invention

In view of the above problems, an invention is proposed to provide a refrigerating and freezing device that overcomes the above problems or at least partially solves the above problems, which can realize independent partitions of the refrigerator compartment, and each layer of partitions can achieve temperatures of 2, 5, 10 (low , Medium, High) and other independent temperature adjustments, so that users can adjust the temperature of each layer of the refrigerator according to their needs and habits, and achieve the best storage environment for different foods through balanced control of temperature and humidity Area to guide users to correctly place the best storage space for food.

To this end, the present invention proposes a refrigerating and freezing device, including:

A first storage compartment, in which at least one shelf is arranged in the first storage compartment, so that the first storage compartment is divided into at least two storage spaces by the shelf;

A cooling chamber configured to accommodate the evaporator of the refrigerating and freezing device;

An air duct system, the air duct system has at least two air supply ports, at least two first return air ports and an on-off control device, each of the air supply ports communicates with the cooling chamber and one of the storage spaces, each The first air return port communicates with one of the storage space and the cooling chamber; the on-off control device is configured to control the airflow from the cooling chamber to flow to one or more of the at least two air supply ports, and then Controlling all or part of the airflow to the corresponding storage space; and

The gear generating device is configured to generate at least two gear instruction groups; each of the gear instruction groups includes a plurality of gear instructions, and each of the gear instruction groups correspondingly controls one of the storage spaces; Each of the gear commands includes control information for making the corresponding storage space at a target temperature or within a target temperature range, so that the refrigerating and freezing device controls the on-off control according to each of the gear commands The device further controls the temperature in the corresponding storage space.

Optionally, the gear generating device includes at least two display control panels arranged on the inner side wall of each of the storage spaces, and each of the display control panels is configured to receive a signal and generate one of the gears The gear instruction of the instruction group; and each of the display control panels is further configured to display the recommended type of the items stored in the corresponding storage space; or,

The gear generating device includes at least two adjustment buttons, and an indicator icon set corresponding to each of the gear commands of each of the adjustment buttons; each indicator icon includes at least a suggestion corresponding to the storage Information on the types of items stored in the space.

Optionally, at least two of the storage spaces are sequentially arranged in a vertical direction; the air duct system includes:

The air supply assembly is provided with the rear part of the first storage compartment, with at least two air supply openings thereon; the on-off control device is provided in the air supply assembly; and

The air return assembly is arranged on a lateral side of the air supply assembly, and has at least two first air return openings thereon.

Optionally, the on-off control device is a branch air supply device, which includes a housing, at least two air outlets provided on the peripheral wall of the housing, and an adjusting member rotatably provided inside the housing The adjusting member has at least one shielding portion, configured to shield at least two of the air outlets in a controlled manner to adjust the respective air outlet areas of the at least two air outlets; and each of the air outlets passes Correspondingly, the air supply port is connected to one of the storage spaces.

Optionally, at least one of the shelves further divides the first storage compartment into a drawer space; the drawer space is arranged on the lower side of the three storage spaces; the air duct system also has A second air return opening provided on the return air assembly, and the second air return opening communicates with the drawer space and the cooling chamber.

Optionally, the number of the storage spaces is three, and the number of the first air return openings is three; the three first air return openings and the second air return openings are arranged in a vertical direction in sequence.

Optionally, at least two of the air outlets include a first air outlet, and a second air outlet and a third air outlet arranged on both sides of the first air outlet; the first air outlet faces upward;

The air supply openings communicating with the storage space on the uppermost side are the first air supply openings, and there are four, which are respectively arranged on both sides of the upper part and both sides of the middle of the storage space;

The air supply openings communicating with the storage space in the middle are the second air supply openings, and there are two, which are respectively arranged on both sides of the upper part of the storage space;

The air supply port communicating with the storage space on the lowermost side is the third air supply port, and there is only one air supply port, which is arranged on the upper side of the storage space;

The air supply assembly is provided with:

A first air supply duct, the lower end is connected to the first air outlet, and the upper part is connected to the four first air outlets;

The second air supply duct and the cross-over air duct, the second air supply duct is arranged on one side of the first air supply duct, the lower end communicates with the second air outlet, and the upper end communicates with one of the second air ducts The air outlet and the cross-over air duct, the cross-over air duct crosses the first air supply air duct and is connected to the other second air supply opening; and

The third air supply duct is arranged on the other side of the first air supply duct, the lower end is connected to the third air outlet, and the upper end is connected to the third air outlet.

Optionally, the area ratio between the uppermost first air return opening and the lower first return air opening is 2 to 3;

The area ratio between the lowermost first air return opening and the upper first air return opening is 1/2 to 7/10;

The area ratio between the lowermost first air return opening and the second air return opening is 1/10 to 1/5.

Optionally, the refrigerating and freezing device further includes:

The first door is installed in the first storage compartment and configured to open or close the first storage compartment;

At least one bottle holder is arranged on the rear side of the first door body, and the lower part of each bottle holder is on the front side of one of the shelves, and when the first door body is closed, each The bottle holder is in contact with the shelf.

Optionally, a return air duct is provided in the return air assembly, and each of the first return air openings is connected to the return air duct;

A sealing structure is provided between each of the shelves and the compartment wall of the first storage compartment;

At least two temperature sensors are also provided in the air supply assembly to detect the temperature in each storage space respectively.

In the refrigerating and freezing device of the present invention, because of the air duct system and the gear generating device, independent partitions of the refrigerator compartment can be realized, and the temperature of each layer of the partition can be 2 ℃, 5 ℃, and 10 ℃ (low, medium, high ) And other independent temperature adjustments, so that users can adjust the temperature of each layer of the refrigerator according to their own needs and habits. Through the balanced control of temperature and humidity, to achieve the best storage environment for different foods, guide users Properly place the best storage space for food.

Furthermore, in the refrigerating and freezing device of the present invention, the original breeze channel technology can realize independent temperature control of each layer of the refrigerating compartment, rapid cooling, reducing temperature fluctuations of each layer, preservation and energy saving, and can also realize each The temperature of the layer is independently adjustable with 3 levels, so that the food is kept in the best temperature range, which greatly improves the preservation period of the food, makes it more convenient for users to use, and saves energy.

Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will better understand the above and other objectives, advantages and features of the present invention.

Description of the drawings

Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary but not restrictive manner with reference to the accompanying drawings. The same reference signs in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the attached picture:

Figure 1 is a schematic structural diagram of a refrigerating and freezing device according to an embodiment of the present invention;

Fig. 2 is a schematic partial structure diagram of the refrigerating and freezing device shown in Fig. 1;

3 is a schematic exploded view of a partial structure of the refrigerating and freezing device shown in FIG. 1;

4 is a schematic partial structural diagram of the refrigerating and freezing device shown in FIG. 1;

5 is a schematic internal structure diagram of the refrigerating and freezing device shown in FIG. 1;

Fig. 6 is a schematic structural diagram of the air blowing assembly in the refrigerating and freezing device shown in Fig. 1;

Fig. 7 is a schematic structural diagram of the air supply assembly shown in Fig. 6 from another perspective;

Fig. 8 is a schematic structural diagram of the return air assembly in the refrigerating and freezing device shown in Fig. 1.

Detailed ways

Fig. 1 is a schematic structural diagram of a refrigerating and freezing device according to an embodiment of the present invention. As shown in Fig. 1 and referring to Figs. 2 to 8, the arrows in the figures may indicate the air flow direction. The embodiment of the present invention provides a refrigerating and freezing device. The refrigerating and freezing device includes a box body 20 in which a storage compartment is defined. The refrigerating and freezing device also has a door for opening and closing the storage compartment.

Wherein, the storage compartment may include a first storage compartment, a second storage compartment, a third storage compartment, and the like. The first storage compartment can be a refrigerating compartment, the second storage compartment can be a freezer compartment, and the third storage compartment can be a temperature-variable compartment. Correspondingly, the door body may include a first door body 30, a second door body, and a third door body to respectively open or close the first storage compartment, the second storage compartment and the third storage compartment. Further, the temperature range in the freezer compartment is generally -22°C to -14°C. The temperature-variable room can be adjusted to -18°C to 8°C at will.

The refrigeration system is configured to provide cold energy 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, and an evaporator 27. The evaporator 27 is configured to directly or indirectly provide cold energy to the storage room. Since the refrigeration system of the refrigerating and freezing device itself is well-known to those skilled in the art, it will not be repeated here. In addition, a cooling chamber may be provided in the box body 20, and specifically may be provided on the rear side of the third storage compartment. The cooling chamber is used to accommodate the evaporator 27. The number of cooling chambers and evaporators 27 may be one or more. When there is one evaporator 27, it can provide cooling capacity for all storage compartments; when there are multiple evaporators 27, each evaporator 27 can provide cooling capacity for one storage compartment.

In some embodiments of the present invention, as shown in FIG. 2, at least one shelf 40 is provided in the first storage room, so that the first storage room is separated by the shelf 40 to separate at least two storages. Space 21. The refrigerating and freezing device also includes an air duct system and a gear generating device 50. The air duct system has at least two air supply ports, at least two first return air ports 81 and an on-off control device. Each air supply port is connected to the cooling chamber and a storage space 21, and each first air return port 81 is connected to a storage space. 21 and the cooling chamber; the on-off control device 60 is configured to control the air flow from the cooling chamber to one or more of the at least two air outlets, and then control all or part of the air flow to the corresponding storage space 21. Specifically, the on-off control device 60 can make the air flow from the cooling chamber flow to only one storage space 21, or can make the air flow flow to two or more storage spaces 21 at the same time, that is, to adjust each storage space 21. The air supply.

The gear generating device 50 is configured to generate at least two gear command groups; each gear command group includes multiple gear commands, and each gear command group correspondingly controls a storage space 21; each gear command includes The control information to make the corresponding storage space 21 at a target temperature or within a target temperature range, so that the refrigerating and freezing device controls the on-off control device 60 according to each gear instruction, thereby controlling the temperature in the corresponding storage space 21.

For example, in some embodiments, the gear generating device 50 includes at least two display control panels, which are arranged on the inner side wall of each storage space 21, and each display control panel is configured to receive a signal and generate a gear command group And each display control panel is also configured to display the recommended corresponding storage space 21 to store the types of items. Each display control panel can be arranged adjacent to the corresponding storage space 21. Further, each display control panel can use sliding, clicking, and other methods for information input. In some alternative embodiments of the present invention, the gear generating device 50 may be a total touch screen of a refrigerating and freezing device.

In other embodiments, the gear generating device 50 includes at least two adjustment buttons, and an indicator icon corresponding to each gear command of each adjustment button. Each indicator icon includes at least information suggesting the types of items stored in the corresponding storage space. Each adjustment button can be a mechanical button structure such as a knob. The indicating icon may be an icon arranged on the inside of the refrigerator box, which is arranged near the adjustment button, and may be set by means of portraying, silk printing, hollow structure, etc. For example, the indicator icon may be a symbol representing an item suggesting the type of items stored in the corresponding storage space. Further, each indicator icon includes at least a target temperature or a target temperature range in the corresponding storage space. The gear generating device 50 may further include at least two indicator lights. Each gear instruction of each adjustment button is associated with an indicator light, so that when the adjustment button indicates the corresponding gear instruction, the corresponding indicator light turns on, so that the corresponding indicator icon is highlighted, that is, it lights up. For user observation. Alternatively, the indicator icon can also be displayed on a display screen, which can achieve a combination of mechanical keys and display on the display screen. Further, the indicator icon can also be directly text, that is, the display screen can display all the information associated with the corresponding gear instruction.

In this embodiment, because of the air duct system and the gear generating device 50, independent partitions of the refrigerator compartment can be realized, and each layer of the partition can achieve a temperature of 2°C, 5°C, and 10°C (low, medium, high) Multi-level temperature independent adjustment, so that users can adjust the temperature of each layer of the refrigerator according to their own needs and habits. Through the balanced control of temperature and humidity, to achieve the best storage environment for different foods, and guide users to correct Optimal storage space for food. Prior to this application, the temperature of each layer of the refrigerator is the same, and the optimal storage temperature and humidity of different foods are different, resulting in users not dare to put some low-temperature storage temperature ready-to-eat, tropical fruits and vegetables into the refrigerator. The temperature is too low to be eaten immediately, users can only put them outside; while tropical fruits need to be stored in the interval of 8-10 ℃ for the best preservation time, and they dare not put them in the refrigerator. The food put in the refrigerator is not in the optimal temperature range, the food decays quickly, and the waste is serious. The embodiment of the present invention can freely adjust the temperature of each layer of the refrigerator according to the needs of the user, so that the food is stored in the best storage space, and guides the user to correctly place the food in the best storage space. Each storage space 21 has its own independent outlet air and independent return air, and each storage space 21 can realize multi-level changes in temperature and freely switch.

Further, when the number of gear commands in each gear command group is relatively large, for example, every time the target temperature in the storage space changes by one degree Celsius, it can be used as a new gear. This can also be called stepless gear adjustment. For example, there can be 11 gears between 0°C and 10°C, so that each storage space 21 can adjust the temperature arbitrarily between 0°C and 10°C. Of course, there are only three gears between 0℃ and 10℃, 0℃ ice temperature zone, 4℃ golden zone, and 10℃ tropical fruit zone.

In some embodiments of the present invention, as shown in FIGS. 5 to 7, the on-off control device 60 is preferably a branch air supply device, which may include a housing, at least two air outlets provided on the peripheral wall of the housing, and An adjusting member rotatably disposed inside the housing; the adjusting member has at least one shielding portion configured to shield the at least two air outlets in a controlled manner to adjust the respective air outlet areas of the at least two air outlets; and The air outlet is connected to a storage space 21 through the corresponding air outlet. In some specific embodiments, such as the branch air supply device in CN104879994A, CN106196840A, etc. The rotation of the adjusting member can be driven by a motor and a gear transmission mechanism. For example, when there are three storage spaces 21 and three air outlets, 7 or 8 air supply modes can be realized, such as fully open, fully closed, one air outlet open (3 types) and two of the air outlets open (3 types )Wait.

In some embodiments of the present invention, as shown in FIGS. 2 to 5, at least two storage spaces 21 are sequentially arranged along the vertical direction; the air duct system includes an air supply assembly 70 and a return air assembly 80. The air supply assembly 70 is provided at the rear of the first storage compartment, and has at least two air supply openings thereon; the on-off control device 60 is arranged in the air supply assembly 70. The air return assembly 80 is arranged on a lateral side of the air supply assembly 70 and has at least two first air return openings 81 thereon.

Further, at least one shelf 40 separates the first storage compartment into a drawer space 22; the drawer space 22 is arranged on the lower side of the three storage spaces 21; the air duct system also has a return air assembly 80 The upper second air return port 82 and the second air return port 82 communicate with the drawer space 22 and the cooling chamber.

Each shelf 40 is preferably a shelf board, a partition board, etc., and a sealing structure is provided with the compartment wall of the first storage compartment. The rear side of the first door 30 is also provided with at least one bottle holder 31, and the lower part of each bottle holder 31 is on the front side of a shelf 40, and when the first door 30 is closed, each bottle holder 31 Contact with the shelf 40. Preferably, between the storage space 21 on the lowermost side and the bottle holder 31 on the front side thereof can allow airflow to flow down to the drawer space 22. The drawer space 22 can also be further divided into a plurality of sub-drawer spaces 22 by a partition plate to prevent multiple drawers 23.

In some preferred embodiments of the present invention, the number of storage spaces 21 is three, and the number of first air return openings 81 is three; the three first air return openings 81 and the second air return openings 82 are sequentially arranged in the up and down direction . Each first air return port 81 is provided on the lower side of the corresponding storage space 21; the second air return port 82 is provided on the lower side of the drawer space 22. The at least two air outlets include a first air outlet, and a second air outlet and a third air outlet arranged on both sides of the first air outlet; the first air outlet faces upward.

The air supply openings communicating with the uppermost storage space 21 are the first air supply openings, and there are four air supply openings, which are respectively arranged on the upper two sides and the middle two sides of the storage space 21. The air outlets communicating with the storage space 21 in the middle are the second air outlets, and there are two air outlets, which are respectively arranged on both sides of the upper part of the storage space 21. The air blowing port communicating with the storage space 21 on the lowermost side is the third air blowing port, and there is only one air blowing port, which is provided on the upper side of the storage space 21.

Furthermore, as shown in FIGS. 6 and 7, a first air supply air duct 71, a second air supply air duct 72, a crossing air duct 73 and a third air supply air duct 74 are provided in the air supply assembly 70. The lower end of the first air supply duct 71 is connected with a first air outlet, and the upper part is connected with four first air outlets. The second air supply air duct 72 is arranged on one side of the first air supply air duct 71, the lower end is connected with the second air outlet, the upper end is connected with a second air supply opening and the crossing air duct 73, and the crossing air duct 73 crosses the first air supply The air duct 71 is connected to another second air supply port. The third air supply duct 74 is arranged on the other side of the first air supply duct 71, the lower end is connected with the third air outlet, and the upper end is connected with the third air outlet. Preferably, the third air supply duct 74 and the third air supply opening are both located on the side of the first air supply duct 71 away from the return air assembly 80. As shown in Fig. 8, a return air duct is provided in the return air assembly 80, and each first return air opening 81 is connected to the return air duct. The return air duct has a total return air opening 83, which is connected to the cooling chamber. The air supply assembly 70 also has an air inlet, which can be communicated with the cooling chamber via an air inlet pipe, and a fan 28 for promoting airflow can be provided at the outlet of the cooling chamber.

The area ratio between the uppermost first return air opening 81 and the lower first return air opening 81 is 2 to 3; the area ratio between the lowermost first return air opening 81 and the first return air opening 81 above is 1/ 2 to 7/10; the area ratio between the lowest first air return port 81 and the second air return port 82 is 1/10 to 1/5. In order to facilitate control, at least two temperature sensors 51 are also provided in the air supply assembly 70 to detect the temperature in each storage space 21 respectively, so that the refrigerating and freezing device can be controlled according to the temperature detected by the temperature sensor 51. Each temperature sensor 51 can sense the temperature change of the corresponding storage space 21.

In the embodiment of the present invention, as shown in Figures 4 and 5, the cold air from the cooling chamber is transferred to the air supply assembly 70. The air supply assembly 70 is equipped with an air volume distributor, that is, a branch air supply device. The device realizes independent air supply for each layer of air ducts or any combination of air supply, reaches each layer, returns air through the independent return air outlets of each layer, and then flows into the return air duct assembly and returns to the cooling chamber together. A seal is formed between the shelf 40 and the inner container of the box body 20 to prevent the sinking of cold air from affecting the temperature fluctuation and control of the next layer. The display control panel is equipped with 2℃, 5℃, 10℃ selection buttons (or low, medium, high) gear selection, and there will be a storage type information display to remind users what items are placed in which area. When the first layer storage space 21 (the uppermost storage space 21) needs to be supplied with air, the wind will come out through the first air supply port, pass through the shelf 40 and reach the bottle holder 31 and the first door 30. With the setting of the air outlet 81, the wind will be returned to return air through the return air outlet on the first floor to complete a refrigeration cycle. When the temperature of the temperature sensor 51 corresponding to each layer of storage space 21 reaches the set temperature, the corresponding air outlet on the branch air supply device is closed to stop air supply. The temperature between the shelf 40 and the bottle holder 31 is the same. The second-tier storage space 21 (the middle storage space 21) has the same air circulation cycle as the first-tier storage space 21. Part of the wind in the third layer storage space 21 (the lowermost storage space 21) passes through the shelf 40 to the bottle holder 31 and the first door 30, and the other part will go down to the drawer area to deliver cold energy, and pass through the back The size of the tuyere is different to control the cooling capacity ratio of each layer to achieve the balance of the set temperature. The temperature sensor 51 detects that the temperature of the storage space 21 is high and requires air supply, and the distributor sends air to which floor. Each storage space 21 and drawer space 22 is provided with an independent return air vent. The size of each return air vent has undergone rigorous calculation and simulation analysis, taking into account factors such as heat conduction and cooling capacity, from top to bottom. The area ratio of the tuyere 81 and the four air return ports to the second air return port 82 is preferably 6:2.5:1.5:10.

The refrigerating and freezing device of the embodiment of the present invention can realize multi-layer temperature control of the refrigerating compartment; each layer can realize three-level temperature change; the user can freely select the temperature range according to his needs; the size ratio of the return air outlet has been strictly calculated To achieve temperature balance. The setting structure of the air return opening; the air return opening, the shelf 40, and the bottle holder 31 cooperate with each other to realize the air circulation mode of the temperature change and humidity adjustment of the refrigerating and freezing device. Each display control panel can be arranged on the side wall of each storage space 21 and close to the first door 30 for easy operation. Users can adjust arbitrarily according to their own habits, which is convenient for users to use. And can guide users to place food storage correctly, reducing waste. Foods that were afraid to put in the refrigerator before can also be put in the refrigerator to extend the shelf life. The food can be stored in the best temperature and humidity environment, which greatly improves the preservation. Air is supplied only when air is needed in each layer area to prevent food from being too cold and save energy.

So far, those skilled in the art should realize that although a number of exemplary embodiments of the present invention have been illustrated and described in detail herein, they can still be disclosed according to the present invention without departing from the spirit and scope of the present invention. The content directly determines or deduces many other variations or modifications that conform to the principles of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all these other variations or modifications.

Claims

A refrigerating and freezing device, including:

A first storage compartment, in which at least one shelf is arranged in the first storage compartment, so that the first storage compartment is divided into at least two storage spaces by the shelf;

A cooling chamber configured to accommodate the evaporator of the refrigerating and freezing device;

An air duct system, the air duct system has at least two air supply ports, at least two first return air ports and an on-off control device, each of the air supply ports communicates with the cooling chamber and one of the storage spaces, each The first air return port communicates with one of the storage space and the cooling chamber; the on-off control device is configured to control the airflow from the cooling chamber to flow to one or more of the at least two air supply ports, and then Controlling all or part of the airflow to the corresponding storage space; and

The gear generating device is configured to generate at least two gear instruction groups; each of the gear instruction groups includes a plurality of gear instructions, and each of the gear instruction groups correspondingly controls one of the storage spaces; Each of the gear commands includes control information for making the corresponding storage space at a target temperature or within a target temperature range, so that the refrigerating and freezing device controls the on-off control according to each of the gear commands The device further controls the temperature in the corresponding storage space.
The refrigerating and freezing device according to claim 1, wherein the gear generating device includes at least two display control panels disposed on the inner side wall of each storage space, and each display control panel is configured to Receiving a signal and generating one of the gear instruction of the gear instruction group; and each of the display control panels is further configured to display the recommended type of items stored in the corresponding storage space; or,

The gear generating device includes at least two adjustment buttons, and an indicator icon set corresponding to each of the gear commands of each of the adjustment buttons; each indicator icon includes at least a suggestion corresponding to the storage Information on the types of items stored in the space.
The refrigerator-freezing device according to claim 1, wherein:

At least two of the storage spaces are sequentially arranged along the vertical direction; the air duct system includes:

The air supply assembly is provided with the rear part of the first storage compartment, with at least two air supply openings thereon; the on-off control device is provided in the air supply assembly; and

The air return assembly is arranged on a lateral side of the air supply assembly, and has at least two first air return openings thereon.
The refrigerating and freezing device according to claim 3, wherein the on-off control device is a branch air supply device, comprising a housing, at least two air outlets arranged on the peripheral wall of the housing, and rotatably arranged The adjusting member inside the housing; the adjusting member has at least one shielding portion configured to shield at least two of the air outlets in a controlled manner to adjust the respective air outlet areas of the at least two air outlets And each of the air outlets communicates with one of the storage spaces through the corresponding air outlets.
The refrigerator-freezing device according to claim 4, wherein:

At least one of the shelves also separates the first storage compartment into a drawer space; the drawer space is arranged on the lower side of the three storage spaces; the air duct system also has a The second air return port on the return air assembly, the second air return port communicates with the drawer space and the cooling chamber.
The refrigerator-freezing device according to claim 5, wherein:

The number of the storage space is three, and the number of the first air return opening is three; each of the first air return openings is arranged on the lower side of the corresponding storage space; the second air return opening It is arranged on the lower side of the drawer space.
The refrigerator-freezing device according to claim 6, wherein:

At least two of the air outlets include a first air outlet, and a second air outlet and a third air outlet arranged on both sides of the first air outlet; the first air outlet faces upward;

The air supply openings communicating with the storage space on the uppermost side are the first air supply openings, and there are four, which are respectively arranged on both sides of the upper part and both sides of the middle of the storage space;

The air supply openings communicating with the storage space in the middle are second air supply openings, and there are two, which are respectively arranged on both sides of the upper part of the storage space;

The air supply port communicating with the storage space on the lowermost side is the third air supply port, and there is only one air supply port, which is arranged on the upper side of the storage space;

The air supply assembly is provided with:

A first air supply duct, the lower end is connected to the first air outlet, and the upper part is connected to the four first air outlets;

The second air supply duct and the cross-over air duct, the second air supply duct is arranged on one side of the first air supply duct, the lower end communicates with the second air outlet, and the upper end communicates with one of the second air ducts The air outlet and the cross-over air duct, the cross-over air duct crosses the first air supply air duct and is connected to the other second air supply opening; and

The third air supply duct is arranged on the other side of the first air supply duct, the lower end is connected to the third air outlet, and the upper end is connected to the third air outlet.
The refrigerator-freezing device according to claim 6, wherein:

The area ratio between the uppermost first air return opening and the lower first return air opening is 2 to 3;

The area ratio between the lowermost first air return opening and the upper first air return opening is 1/2 to 7/10;

The area ratio between the lowermost first air return opening and the second air return opening is 1/10 to 1/5.
The refrigerating and freezing device according to claim 5, further comprising:

The first door is installed in the first storage compartment and configured to open or close the first storage compartment;

At least one bottle holder is arranged on the rear side of the first door body, and the lower part of each bottle holder is on the front side of one of the shelves, and when the first door body is closed, each The bottle holder is in contact with the shelf.
The refrigerator-freezing device according to claim 3, wherein:

A return air duct is provided in the return air assembly, and each of the first return air openings is connected to the return air duct;

A sealing structure is provided between each of the shelves and the compartment wall of the first storage compartment;

At least two temperature sensors are also provided in the air supply assembly to detect the temperature in each storage space respectively.