CN110345689B

CN110345689B - Air control device and refrigerator

Info

Publication number: CN110345689B
Application number: CN201910664693.7A
Authority: CN
Inventors: 崔港; 陆彭飞; 张磊; 张建; 彭博
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2017-06-12
Filing date: 2017-06-12
Publication date: 2021-08-10
Anticipated expiration: 2037-06-12
Also published as: WO2018227732A1; CN110345689A; CN109028716B; CN109028716A

Abstract

The invention relates to the field of household appliances, and discloses a wind control device and a refrigerator, wherein the wind control device (30) comprises a control part (32) and a perforated plate (33), the perforated plate (33) is provided with a wind port (331), and the control part (32) can rotate relative to the perforated plate (33) so as to open different wind ports (331) when the control part (32) rotates to different positions. The air inlet can be opened, partially opened or closed by moving the control part, so that the air quantity passing through the air inlet is controlled to provide the required air quantity according to the requirement.

Description

Air control device and refrigerator

Technical Field

The invention relates to the field of household appliances, in particular to a wind control device and a refrigerator.

Background

In many air supply applications, it is often necessary to provide different air volumes depending on the actual situation. For example, the space for storing food in the refrigerator is large and divided into different areas, and cold air with required air volume needs to be delivered to different positions for corresponding cooling preservation. In the prior art, the conveying amount is usually adjusted by providing a damper or the like. The damper is usually a baffle pivotally installed in the air duct to control whether the air duct is communicated or not through pivoting, so that only whether air is supplied or not can be controlled, and the air supply amount cannot be adjusted according to different actual air volume requirements.

Disclosure of Invention

The invention aims to solve the problem of providing different air supply quantities and provides an air control device to provide different air supply quantities according to requirements.

In order to achieve the above object, an aspect of the present invention provides a wind control device, wherein the wind control device includes a control portion and a perforated plate, the perforated plate is provided with a wind gap, and the control portion is capable of rotating relative to the perforated plate to open, partially open, or close the wind gap when the control portion rotates to different positions.

Preferably, the control part comprises a rotating shaft, and the rotating shaft is provided with a stopper protruding in the radial direction so as to shield the tuyere through the stopper in the rotating process of the rotating shaft.

Preferably, the perforated plate is a strip plate and comprises a plurality of the air openings arranged along the length direction of the strip plate, the axial direction of the rotating shaft is parallel to the arrangement direction of the air openings, and the rotating shaft is provided with a plurality of the stop blocks arranged along the axial direction.

Preferably, the plurality of stoppers are arranged in a plurality of groups along the axial direction of the rotating shaft, each group of stoppers corresponds to the same tuyere, and the stoppers staggered along the axial direction are arranged in at least two groups of stoppers.

Preferably, at least two of the tuyeres are not open simultaneously.

Preferably, each of the tuyeres is set to have an individually opened state; and/or at least one tuyere is a multi-state tuyere which can be opened simultaneously with other tuyeres.

Preferably, the wind control device is configured to have a state in which the plurality of wind ports are all closed.

Preferably, the control portion and aperture plate define relative reference positions by cooperating stop structures.

Preferably, the wind control device comprises a motor for driving the control part to rotate, and the motor is a bidirectional motor.

Preferably, the wind control device is configured to be capable of having n different operating states, and the motor is a stepping motor and is configured to rotate at an interval angle of 360 °/n.

Preferably, the wind control device includes a rotating bracket, the perforated plate is fixed to the rotating bracket, and the control part is rotatably installed to the rotating bracket.

Preferably, the air control means comprises a seal sealingly engaged between the tuyere and the control portion.

The invention also provides a refrigerator, wherein the refrigerator comprises the air control device.

Preferably, the refrigerator includes an air duct and a plurality of storage areas, the air duct including an air chamber and an air return opening, wherein: the wind control device comprises a first wind control device, one side of the perforated plate of the first wind control device, which is provided with the control part, is communicated with the wind cavity, and the other side of the perforated plate is communicated with the storage area; and/or the air control device comprises a second air control device, and the air inlet of the second air control device is communicated with the air return inlet.

Preferably: the refrigerator comprises two first air control devices, and the two first air control devices are arranged at two sides in the air cavity; and/or the second air control device is arranged at the air return opening of the air duct.

Preferably, the refrigerator comprises a front cover plate, a rear cover plate and a heat insulation layer clamped between the front cover plate and the rear cover plate, and the perforated plate is arranged on the heat insulation layer, the front cover plate or the rear cover plate.

Preferably, the apertured plate is formed as one piece with the insulating layer, the front cover plate or the rear cover plate.

Preferably, the perforated plate is embedded in the insulating layer.

Through the technical scheme, the air port can be opened, partially opened or closed through the rotation of the control part, so that the air quantity passing through the air port is controlled to provide the required air quantity according to the requirement.

Drawings

FIG. 1a is a perspective view of one embodiment of a wind control device of the present invention;

FIG. 1b is an exploded view of FIG. 1 a;

FIG. 2 is a front view of the wind control device of FIG. 1 a;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an exploded view of another embodiment of the wind control device of the present invention;

FIG. 5 is a front view of the wind control device of FIG. 4;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

FIGS. 7-14 are schematic views of the wind control device of the present invention in different operating states;

FIG. 15 is a schematic view showing the flow of cool air in an operating state of a refrigerator having an air control apparatus according to the present invention;

FIG. 16 is an exploded view of the cabinet and the wind tunnel parts of one embodiment of the refrigerator of the present invention;

fig. 17 is a schematic view of a flow of cool wind of the refrigerator of fig. 16;

FIG. 18 is an exploded view of a portion of the air duct of the refrigerator of FIG. 16;

FIG. 19 is a perspective view of an upper portion of the insulating layer of the duct of the refrigerator of FIG. 18;

FIG. 20 is a perspective view of an insulation layer of an air duct of the refrigerator of FIG. 18;

FIG. 21 is an exploded view of the cabinet and air duct components of another embodiment of the refrigerator of the present invention;

fig. 22 is a schematic view of the flow of cool air of the refrigerator of fig. 21;

FIG. 23 is an exploded view of a portion of the air duct of the refrigerator of FIG. 21;

FIG. 24 is a perspective view of an upper portion of an insulating layer of an air duct of the refrigerator of FIG. 23;

FIG. 25 is a schematic view of one installation of the wind control device of the present invention;

FIG. 26 is a schematic view of another installation of the wind control device of the present invention.

Description of the reference numerals

10-air cavity, 30-air control device, 32-control part, 32 a-cylinder, 32B-rotating shaft, 321-opening, 33-perforated plate, 331-air opening, 331 a-first air outlet, 331B-second air outlet, 331 c-third air outlet, 34-rotating bracket, 35-motor, 351-protective cover, 36-sealing element, 40-front cover plate, 50-rear cover plate, 60-heat preservation layer, 61-volute tongue, 62-air control device installation part, 70-refrigeration device, 80-air return opening, 100-air channel, 200-box, 210-shelf, 220-storage area, 300-fan, 400-sensor and B-block.

Detailed Description

In the present invention, the use of directional terms such as "upper, lower, left, right" generally means upper, lower, left, right as viewed with reference to the accompanying drawings, unless otherwise specified; "inner and outer" refer to the inner and outer relative to the profile of the components themselves.

According to an aspect of the present invention, there is provided a wind control device, wherein the wind control device 30 comprises a control portion 32 and a perforated plate 33, the perforated plate 33 is provided with a wind opening 331, and the control portion 32 is rotatable with respect to the perforated plate 33 to open, partially open or close the wind opening 331 when the control portion 32 is rotated to different positions.

The tuyere 331 can be opened, partially opened or closed by the rotation of the control part 32, thereby controlling the air volume passing through the tuyere to provide a desired air volume as required.

Specifically, on one hand, whether the air flow passages on the two sides of the perforated plate 331 are communicated or not can be realized by opening (including partial opening) or closing the air ports 331; on the other hand, the amount of air passing through the tuyere 331 can be controlled by the partial opening degree of the tuyere 331.

Preferably, the perforated plate 33 may be provided with a plurality of tuyeres 331, and different tuyeres 331 are in different states by rotation of the control part 32. Specifically, the air ports 331 at different positions and numbers may be opened or partially opened, so that air is supplied or supplied through the opened or partially opened air ports 331.

In addition, as shown in fig. 3 and 6, the airflow enters from one side of the wind control device 30 (the side (the right side in fig. 3 and 6) perpendicular to the direction of the rotation axis (the up-down direction in fig. 3 and 6) of the wind control device 30) and is sent out from the other side (the left side in fig. 3 and 6), and a large amount of air can be fed into one side of the wind control device 30, which is advantageous for improving the air feeding efficiency and the air blowing efficiency and reducing the loss of the airflow caused by the rotation of the wind control device 30.

Preferably, at least two of the tuyere 331 are not opened at the same time, so that various operation modes are set in combination with different states of other tuyere 331 according to functional requirements.

To realize a plurality of operation modes by the wind control device 30, it is preferable that each of the wind ports 331 may be set to have a state of being individually opened so as to have a single area operation mode of supplying or supplying wind through the respective wind ports 331, respectively. In addition, at least one of the tuyere 331 is a multi-state tuyere that can be opened (including partially opened) simultaneously with the other tuyere 331 so as to have a multi-zone operation mode in which at least two tuyeres 331 supply air or supply air.

Further, the wind control means may be provided to have a state such that the plurality of wind ports 331 are all closed.

Wherein, various required air supply or air inlet states can be realized by reasonably combining the independent opening states of the different air ports 331, the states of opening the air ports 331 simultaneously with other air ports, and the like. For example, taking the opening (here, opening to the maximum flow rate) and closing of the tuyere 331 as an example, each tuyere 331 has two states of opening and closing, and if the wind control device 30 is provided with m tuyeres 331, it may have 2 according to the arrangement combination^mAn operational mode comprising: the tuyere 331 is fully opened, the tuyere 331 is fully closed, the first tuyere 331 (sorted in the arrangement direction) is opened and the other tuyeres 331 are fully closed, the first and second tuyeres 331 are opened and the other tuyeres 331 are fully closed … … the first tuyere 331 is closed and the other tuyeres 331 are fully opened. According to the requirement of controlling air quantity of air port 331, air port 331 portion can be setAnd starting more corresponding working modes.

In the present invention, the control part 32 may be provided in a suitable structure to realize the opening, partial opening and closing of the tuyere 331 by the rotation.

According to an embodiment of the present invention, as shown in fig. 1a to 3, the control part 32 includes a cylinder 32a, a plurality of openings 321 are provided on a sidewall of the cylinder 32a, and the plurality of openings 321 can be respectively aligned with the tuyere 331 by rotation of the control part 32.

Here, "aligned" means that the openings 321 have regions overlapping each other on the end face of the tuyere 331, including complete overlapping and partial overlapping. The tuyere 331 is opened by the complete overlapping, and the tuyere 331 is partially opened by the partial repetition.

By the rotation of the cylinder 32a, the tuyere 331 can be aligned with the opening 321, and then communicated with the other openings 321 through the hollow structure of the cylinder 32a, thereby achieving the air flow passage communication on both sides of the perforated plate 33 through the communication of the tuyere 331 and the outside of the cylinder 32 a. In other words, by the rotation of the cylinder 32a, air supply can be achieved by forming an air flow path through the inside of the cylinder 32a, communicating the outside of the cylinder 32a and the tuyere 331, through the tuyere 331 and the opening 321.

Specifically, on the one hand, the opening or non-opening of the tuyere 331 can be controlled by rotating the cylinder 32a such that the opening 321 is aligned or not aligned with the tuyere 331; on the other hand, the amount of air passing through the tuyere 331 can be controlled by rotating the cylinder 32a so that the opening 321 partially coincides with the tuyere 331 to a different extent.

Preferably, the perforated plate 33 is a strip plate and includes a plurality of the tuyeres 331 arranged along a length direction of the strip plate, a rotation axis of the cylinder 32a is parallel to an arrangement direction of the plurality of the tuyeres 331, the cylinder 32a includes a plurality of sets of the openings 321 arranged along the rotation axis direction of the cylinder 32a, and each set of the openings 321 can be respectively aligned with the same one of the tuyeres 331 by rotation of the cylinder 32 a. Thus, by the rotation of the cylinder 32a, the different tuyeres 331 can be aligned with the respective openings 321.

When the air opening 331 is used as an air outlet, air can be supplied through the air opening 331 aligned with the opening 321 and air can be supplied through other openings 321, for example, air can be supplied to different positions of the refrigerator through the air opening 331. When the air port 331 serves as an air inlet, air can be introduced through the air port 331 aligned with the opening 321 and exhausted to a desired position (e.g., a return air port of a refrigerator) through the other opening 321.

In the embodiment shown in fig. 2 and 3, the tuyere 331 is an air outlet, and air outside the cylinder 32a can enter the cylinder 32a from various directions through the opening 321 and then be sent out of the tuyere 331 through the opening 321 aligned with the tuyere 331. Similarly, the operation of the tuyere 331 as an air inlet is similar to that described above and will not be described in detail herein.

In the present invention, the barrel 32a may be a hollow barrel structure having a cylindrical or other cross-section. Preferably, for ease of arrangement, in the illustrated embodiment, the axis of rotation of the barrel 32a may be the axis of the barrel 32a itself, such that each set of openings 321 is spaced apart in the same circumferential direction of the barrel 32 a. In addition, different sets of openings 321 may be aligned, staggered, or partially aligned in the direction of the axis of rotation to achieve different modes of operation.

Preferably, as shown in fig. 1b, at least two sets of the openings 321 have the openings 321 staggered in the axial direction. Therefore, in the rotation process of the cylindrical member 32a, the two air ports 331 corresponding to the at least two sets of openings 321 have a state of not opening simultaneously (when the air ports 331 are air outlets, a state of not blowing air simultaneously; when the air ports 331 are air inlets, a state of not blowing air simultaneously) so as to be combined with different states of other air ports 331 according to functional requirements to set various working modes.

Furthermore, in order to reduce the loss of gas during flowing and facilitate setting the blowing direction of the wind control device 30, it is preferable that the wind control device 30 includes openings 321 disposed in pairs opposite in the radial direction of the cylinder 32a, each pair of the openings 321 being opposite in the radial direction of the cylinder 32a, and it is possible to ensure that the cool wind entering from one of the openings 321 can be convectively blown out when the other opening 321 is aligned with the tuyere 331. Wherein the pairs of openings 321 do not necessarily belong to the same group of openings 321.

Further, for concentrated intake air delivery to the outside, it is preferable that the inside of the cylinder 32a is axially communicated, so that all the cold air concentrated into the cylinder 32a can be delivered to the outside when a part of the plurality of the tuyere 331 blows air.

According to another embodiment of the present invention, as shown in fig. 4 to 6, the control part 32 includes a rotating shaft 32B, and the rotating shaft 32B is provided with a stopper B protruding in a radial direction to shield the tuyere 331 by the stopper B during rotation of the rotating shaft 32B.

Here, "shielding" means that the stopper B has regions overlapping each other on the end surface of the tuyere 331, including completely shielding the tuyere 331 (the tuyere 331 is closed) and partially shielding the tuyere 331 (the tuyere 331 is partially opened) by the stopper B.

The stopper B can block the tuyere 331 by rotating the rotating shaft 32B to rotate, thereby blocking the air flow path on both sides of the perforated plate 33. In other words, by the rotation of the rotating shaft 32B, when the stopper B does not block the air opening 331, the air flow passages on both sides of the perforated plate 33 can be communicated through the air opening 331 and the air supply can be realized.

On one hand, whether the airflow passages on the two sides of the perforated plate 33 are communicated or not can be controlled by rotating the rotating shaft 32B to enable the block B to shield the air opening 331 or not to shield the air opening 331; on the other hand, the amount of air passing through the tuyere 331 can be controlled by rotating the rotating shaft 32B such that the stopper B partially blocks the tuyere 331 to a different degree.

Preferably, the perforated plate 33 is a strip plate and includes a plurality of the air ports 331 arranged along a length direction of the strip plate, an axial direction of the rotating shaft 32B is parallel to an arrangement direction of the plurality of the air ports 331, and the rotating shaft 32B is provided with a plurality of the stoppers B arranged along the axial direction. Therefore, the rotating shaft 32B drives the stopper B to rotate, so that different stoppers B can shield different air ports 331, the shielded air ports 331 are closed, the unshielded air ports 331 are opened (including partially opened), and air in various directions can be supplied through different unshielded air ports 331.

Preferably, as shown in fig. 4, a plurality of the stoppers B are arranged in multiple groups along the axial direction of the rotating shaft 32B, each group of the stoppers B corresponds to the same tuyere 331, and at least two groups of the stoppers B have the stoppers B staggered along the axial direction. Therefore, in the rotating process of the rotating shaft 32B, the two air ports 331 corresponding to the at least two sets of stoppers B have a state that they are not shielded at the same time, so as to be combined with different states of other air ports 331 according to functional requirements to set various working modes. It is understood that each set of blocks B includes at least one block B, either one block B or a plurality of blocks B.

In order to realize different operation modes by rotating the rotating shaft 32B to different positions, preferably, each set of the stoppers B includes a plurality of the stoppers B circumferentially spaced along the same axial position of the rotating shaft 32B. Wherein the blocks B of different sets may be axially aligned, staggered or partially aligned. Therefore, the air ports 331 corresponding to the plurality of stoppers B of each group can be respectively shielded when the rotating shaft 32B rotates to different positions, so that the air ports 331 are closed in a plurality of different states, and various working modes can be set by combining the air ports 331 with different states of other air ports 331 according to functional requirements.

In the present invention, to realize the rotation of the control part 32, the wind control device 30 may include a rotating bracket 34, the perforated plate 33 is fixed to the rotating bracket 34, and the control part 32 is rotatably mounted to the rotating bracket 34.

In the present invention, the control unit 32 may be driven by various suitable means, such as manually rotating the control unit 32. For automatic control, the wind control device 30 may include a motor 35 for driving the control portion 32 to rotate, and an outer side of the motor 35 may be further protected by a protective cover 351. Preferably, the motor 35 is a bi-directional motor to more accurately drive the control section 32 to a desired operating mode over a 360 ° range.

Wherein, to accurately determine the rotational position of control portion 32, control portion 32 and aperture plate 33 may define relative reference positions by cooperating stop structures. For example, the stop structure may define a start or end position of the range of rotation of the control portion 32 (of course, other reference positions are also possible, such as a position rotated by 30 ° from the start position of the relative rotation). The stop structure may be of any suitable form and may be provided on any suitable component. For example, stop structures may be provided on the control portion 32 and the rotating bracket 34, respectively. Specifically, the control unit 32 may be provided with a first correction block, and the rotating bracket 34 may be provided with a second correction block which is matched with the first correction block in a stop manner at a start or end position of the desired positioning.

Wherein, in order to further precisely control the control part 32 to rotate to the position corresponding to each working mode, the wind control device 30 is configured to have n different working states, and the motor 35 is a stepping motor and is configured to rotate at an interval angle of 360 °/n. The air outlet states in different operation modes will be described below with reference to fig. 1 to 14 (in the embodiment of fig. 1 to 14, the opening 231 is used as an air inlet, and the air outlet 331 is used as an air outlet). In the embodiment shown in fig. 1a to 6, the air outlets 331 include a first air outlet 331a, a second air outlet 331b, and a third air outlet 331c that are sequentially arranged, and respectively correspond to air supply of the first axial region, the second axial region, and the third axial region, and the air control device 30 is configured to be capable of implementing an independent air supply operation mode through the first air outlet 331a, the second air outlet 331b, and the third air outlet 331c, implementing a combined air supply operation mode through any two air outlets 331, implementing a full air supply operation mode in which three air outlets 331 simultaneously supply air, and implementing a closing mode in which all three air outlets 331 are closed. The wind control device 30 is thus required to have 8 operation modes (here, only the operation mode in which the wind ports 331 are closed or fully opened is explained), and the motor 35 may be set to rotate at angular intervals of 45 °. For this, each tuyere 331 has 4 operation modes closed and 4 operation modes open. For the embodiment of the cylinder 32a, the cylinder 32a is provided with at least 4 openings 321 corresponding to each tuyere 331, and the above-mentioned 8 operation modes can be realized by axially staggering and aligning the different openings 321; for the embodiment of the rotating shaft 32B, 4 stoppers B corresponding to each tuyere 331 are provided on the rotating shaft 32B, and the 8 operating modes can be realized by axially staggering and aligning the stoppers B of different tuyeres 331. The specific implementation sequence of the operation modes can be selected according to the needs.

For example, as shown in fig. 7, at this time, the motor 35 is in the initial position, i.e., rotates by 0 °, and the first air outlet 331a, the second air outlet 331b, and the third air outlet 331c are all closed; as shown in fig. 8, when the motor 35 rotates to a 45 ° position, the first air outlet 331a is opened, and the second air outlet 331b and the third air outlet 331c are closed; as shown in fig. 9, when the motor 35 rotates to a 90 ° position, the first air outlet 331a and the third air outlet 331c are closed, and the second air outlet 331b is opened; as shown in fig. 10, when the motor 35 rotates to a 135 ° position, the first air outlet 331a and the second air outlet 331b are closed, and the third air outlet 331c is opened; as shown in fig. 11, when the motor 35 rotates to a 180 ° position, the first air outlet 331a and the second air outlet 331b are opened, and the third air outlet 331c is closed; as shown in fig. 12, when the motor 35 rotates to a 225 ° position, the first air outlet 331a and the third air outlet 331c are opened, and the second air outlet 331b is closed; as shown in fig. 13, when the motor 35 rotates to a 270 ° position, the first air outlet 331a is closed, and the second air outlet 331b and the third air outlet 331c are opened; as shown in fig. 14, when the motor 35 rotates to the position of 315 °, the first air outlet 331a, the second air outlet 331b, and the third air outlet 331c are all opened.

In addition, it is preferable that the wind control device 30 includes a sealing member 36 which is sealingly engaged between the tuyere 331 and the control portion 32 to ensure airtightness at the position passing through the tuyere 331.

According to another aspect of the present invention, there is provided a refrigerator, wherein the refrigerator comprises the wind control device 30 of the present invention.

According to an embodiment of the present invention, the air control device 30 of the present invention is used to supply air to different areas, specifically, the air control device 30 includes a first air control device, the refrigerator includes an air duct 100 and a plurality of storage areas 220, the air duct 100 includes an air cavity 10, one side of the perforated plate 33 of the first air control device, which is provided with the control part 32, is communicated with the air cavity 10, and the other side is communicated with the storage areas 220.

Thus, the storage area 220 may be supplied with air through the air opening 331 of the first air control device. In the case of having a plurality of storage areas 220, a plurality of air ports 331 may be provided to communicate with the plurality of storage areas 220 in one-to-one correspondence, and different combinations of operation bodies may be provided for different storage areas 220 according to different operation modes of the air ports 331.

According to another embodiment of the present invention, the wind tunnel 100 includes a wind return opening 80, the wind control device 30 includes a second wind control device, and a wind opening 331 of the second wind control device is communicated with the wind return opening 80 so as to return wind through the wind opening 331. In the case where the air ports 331 are communicated with the return air port 80, the return air passing through the return air port 80 can be controlled, and particularly, the amount of air to be fed to the return air port 80 can be controlled by the air ports 331 of different numbers and opening degrees, thereby controlling the amount of return air.

Wherein the wind control device 30 may be provided at a suitable position for arrangement. For example, as shown in fig. 16 to 24, the refrigerator includes a plurality of first air control devices provided at both side positions in the air chamber 10 to supply air from different storage areas 220 in a cabinet 200 of the refrigerator from both sides, respectively. Specifically, as shown in fig. 15, the inside of the cabinet 200 may include a freezing region and a cold region, the storage region 220 may include a plurality of compartments partitioned by the shelves 210, and the first air control device introduces cold air from the middle of the air chamber 10 and blows air from both sides of the cabinet 200 (the cold air flow path is shown by arrows in fig. 17), and then blows air from both sides of the freezing region to the middle of the compartments (the cold air flow path is shown by arrows in fig. 15). The position (for example, the position of the fan 300) for introducing cold air into the air cavity 10 is usually located in the middle of the air cavity 10, and the first air control devices are arranged at the two sides of the air cavity 10, so that the position of the fan 300 in the multi-system refrigerator can be kept away as far as possible, the efficiency of the fan 300 is not affected, and the air outlet efficiency of the first air control devices is prevented from being interfered by the operation of the fan 300. In addition, the lower portion of the cabinet 200 is provided with a freezing region, and the storage region 220 may further include a storage space defined by each drawer of the freezing region. The cooling zone and the freezing zone may be supplied with air through different air ports 331, respectively, so as to realize separate and simultaneous air supply of the cooling zone and the freezing zone.

The sensors 400 may be disposed at least a portion of the air ports 331 to monitor the air outlet condition of the air ports 331 and feed back the air outlet condition to the controller, the controller may adaptively adjust the air supply intensity as needed to achieve the refrigeration effect required by the area corresponding to the air ports 331, and the air volume supplied to the required area may be adjusted by opening or closing other air ports 331.

The air duct 100 includes a front cover plate 40, a rear cover plate 50, and an insulating layer 60 interposed between the front cover plate 40 and the rear cover plate 50, and the air chamber 10 is defined by the rear cover plate 50 and the insulating layer 60. To facilitate installation, the aperture plate 33 may be provided on the insulating layer 60, the front cover plate 40, or the rear cover plate 50. Specifically, the perforated plate 33 may be mounted on the insulating layer 60, the front cover plate 40, or the rear cover plate 50, for example, according to one embodiment, as shown in fig. 18, a wind control device mounting portion 62 (e.g., a mounting groove) may be provided on the insulating layer 60 to mount the wind control device 30; alternatively, the aperture plate 33 may be integrally formed on the heat insulating layer 60, the front cover plate 40 or the rear cover plate 50 (for example, the aperture plate 33 and the rear cover plate 50 may be formed as a single body, and the rotating bracket 34 may be integrally formed with the rear cover plate 50, as shown in FIG. 24; or, for example, the aperture plate 33 may be formed by opening the air port 331 in the heat insulating layer 60, as shown in FIG. 25); still alternatively, perforated plate 33 may be embedded in insulation layer 60 to reduce connecting members.

In addition, the refrigerator of the present invention may be a multi-system refrigerator, for example, the embodiment shown in fig. 16 to 20, or may be a single-system refrigerator, for example, the embodiment shown in fig. 21 to 24.

For a multi-system refrigerator, a fan 300 is arranged in the air chamber 10 so as to draw cold air from the outside of the air chamber 10 and send the cold air to the air control device 30. Wherein, in order to guide the cool air extracted by the fan 300 intensively, a volute tongue 61 is arranged in the fan cavity of the insulating layer 60. In addition, as described above, by disposing the wind control devices 30 at both sides of the wind chamber 10, the wind control devices 30 can be far away from the fan 300, and the loss caused by the wind control devices 30 blocking the airflow sucked by the fan 300 can be avoided.

In the case of the single system refrigerator, the fan 300 is not provided in the air chamber 10, and cool air is introduced from the other portion of the refrigerator and supplied to the air control device 30.

In addition, the air control device 30 may be disposed at the return air inlet of the air duct 100, so as to control the amount of return air through the opening and closing, the opening degree, and the number of the air inlets 331 communicating with the return air inlet.

Here, an operation of blowing air in the refrigerator will be described with reference to the drawings. Taking the multi-system refrigerator shown in fig. 16 to 20 as an example, as shown in fig. 20, the air duct 100 further includes a refrigerating device 70 located below the air chamber 10, the air return opening 80 is located below the refrigerating device 70, the air entering from the air return opening 80 flows through the refrigerating device 70 to be cooled into cold air for providing a refrigerating effect to different locations of the refrigerator, the cold air is sucked into the air chamber 10 by the fan 300, then sent to the storage area 220 by, for example, a first air control device, and finally returned again from the storage area 220 through the air return opening 80 to be cooled again by the refrigerating device 70 and form a circulation path.

When the second air control device is provided at the return air inlet 80, the second air control device may be provided on a path from the return air inlet 80 to the cooling device 70 to control the amount of air cooled by the return cooling device 70.

The refrigerator of the invention can realize different air supply modes through the air control device 30, for example, the temperature of a certain or a plurality of storage areas 220 is locally adjusted, the temperature is intensively reduced, and the temperature uniformity of the storage areas 220 in time and space can be improved.

It should be noted that, although the example of the air control device 30 for conveying cold air is described above with reference to the specific application of the refrigerator, it can be understood that the air control device 30 can also be used in other occasions where air volume needs to be controlled, such as normal temperature air, hot air, etc. The air control device 30 may be used to convey a gas-liquid mixture (e.g., cold air having humidity to be conveyed when humidity is adjusted in a refrigerator).

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. The invention includes the combination of the individual features in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. A refrigerator comprising an air duct (100), a plurality of storage areas (220), and an air control device (30), the air duct (100) comprising an air chamber (10) and an air return opening (80), characterized in that the air control device (30) comprises a control portion (32) and a perforated plate (33), the perforated plate (33) being a long strip plate and comprising a plurality of air openings (331) arranged along a length direction of the long strip plate, the control portion (32) being rotatable with respect to the perforated plate (33) to open, partially open, or close the air openings (331) when the control portion (32) is rotated to different positions, the control portion (32) comprising a rotation shaft (32B), an axial direction of the rotation shaft (32B) being parallel to an arrangement direction of the plurality of air openings (331), the rotation shaft (32B) being provided with a plurality of stoppers (B) arranged in the axial direction and protruding in the radial direction, the air inlets (331) are correspondingly shielded by the stop blocks (B) in the rotating process of the rotating shaft (32B), at least one air inlet (331) is a multi-state air inlet, the multi-state air inlet can be opened simultaneously with other air inlets (331), the air control device (30) comprises a first air control device, one side, provided with the control part (32), of the perforated plate (33) of the first air control device is communicated with the air cavity (10), the air inlets (331) are respectively communicated with the storage areas (220) in a one-to-one correspondence manner, each group of stop blocks (B) comprises a plurality of stop blocks (B) which are circumferentially arranged at intervals along the same axial position of the rotating shaft (32B), so that the air inlets (331) can provide a plurality of working modes which are combined in different states.

2. The refrigerator according to claim 1, wherein a plurality of the stoppers (B) are provided in plural sets in an axial direction of the rotating shaft (32B), each set of the stoppers (B) corresponding to the same tuyere (331), and the stoppers (B) staggered in the axial direction are provided in at least two sets of the stoppers (B).

3. The refrigerator according to claim 1 or 2, wherein at least two of the air ports (331) are not opened at the same time, and/or the air control means is provided to have a state such that all of the plurality of air ports (331) are closed.

4. The refrigerator according to claim 1 or 2, characterized in that the control portion (32) and the aperture plate (33) define relative reference positions by stop structures cooperating with each other.

5. The refrigerator according to claim 4, wherein the air control device (30) comprises a motor (35) for driving the control part (32) to rotate, and the motor (35) is a bidirectional motor.

6. A refrigerator according to claim 5, characterized in that the air control means (30) is arranged to be able to have n different operating states, the motor (35) being a stepping motor and arranged to rotate at 360 °/n intervals.

7. The refrigerator according to claim 1 or 2, wherein the wind control device (30) includes a rotating bracket (34), the aperture plate (33) is fixed to the rotating bracket (34), and the control part (32) is rotatably mounted to the rotating bracket (34).

8. The refrigerator according to claim 1 or 2, wherein the air control device (30) comprises a sealing member (36) sealingly engaged between the air opening (331) and the control portion (32).

9. The refrigerator according to claim 1, wherein the air control device (30) comprises a second air control device, the air opening (331) of the second air control device being in communication with the air return opening (80).

10. The refrigerator according to claim 9, wherein:

the refrigerator comprises two first air control devices which are arranged at two sides in the air cavity (10); and/or the like and/or,

the second air control device is arranged at the air return opening (80) of the air duct (100).

11. The refrigerator according to claim 1, wherein the refrigerator comprises a front cover plate (40), a rear cover plate (50), and an insulation layer (60) interposed between the front cover plate (40) and the rear cover plate (50), and the aperture plate (33) is provided on the insulation layer (60), the front cover plate (40), or the rear cover plate (50).

12. The refrigerator of claim 11, wherein the aperture plate is formed in one piece with the insulation layer (60), the front cover plate (40), or the rear cover plate (50).

13. The refrigerator of claim 11, wherein said perforated plate is disposed to be embedded in said insulation layer (60).