CN113531989B

CN113531989B - Refrigerator and control method thereof

Info

Publication number: CN113531989B
Application number: CN202010305846.1A
Authority: CN
Inventors: 崔展鹏; 王磊; 姬立胜; 戚斐斐; 刘山山; 秦娟娟
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2023-05-16
Anticipated expiration: 2040-04-17
Also published as: CN113531989A

Abstract

The invention provides a refrigerator and a control method thereof. The refrigerator includes: the box body is provided with a storage compartment; a first air supply duct; the storage device is arranged in the storage compartment, a storage space is limited in the storage device, and a communication port is formed in one surface of the storage device; the air guide device is arranged on the upper side of the storage device, a second air supply air channel extending along the front-rear direction is arranged in the air guide device, the second air supply air channel is communicated with the first air supply air channel, and the front part of the second air supply air channel is provided with a first air port and a second air port positioned behind the first air port; the dehumidifying air supply device is arranged at the second air port; the moisture permeable membrane is arranged at the communication port; and the humidity detection device is configured to detect the humidity in the storage space and/or the humidity outside the storage space, so that the refrigerator is in an open state according to the humidity value detected by the humidity detection device, and at least the air flow is promoted to flow through the side face of the moisture permeable membrane, which faces the storage compartment. The moisture permeability efficiency can be improved.

Description

Refrigerator and control method thereof

Technical Field

The invention relates to the technical field of refrigerator storage, in particular to a refrigerator and a control method thereof.

Background

Refrigerators are a kind of refrigerating apparatus that maintains a constant low temperature, and also a kind of civil products that maintain foods or other objects in a constant low temperature cold state. With the improvement of life quality, the consumer demand for preservation of stored foods is also increasing, and especially the demands for color, taste and the like of foods are also increasing. The method reduces the oxygen content in the meat preservation space by various methods, reduces the oxidation strength of the meat, and simultaneously inhibits the aerophilic bacteria contained in the meat under the condition of low oxygen so as to achieve the aim of preserving the meat. Because the oxygen control requirement is a sealing condition, the humidity of the air in the oxygen control room is high, and because the air supply of the oxygen control room comes from the freezing evaporator, the air supply temperature is about-25 ℃ or even lower, if the air supply is directly blown to the rear wall surface of the oxygen control sealing barrel, the local temperature of the rear wall surface is too low, frosting is easily formed on the inner wall surface, and the user experience is influenced.

Disclosure of Invention

The inventor of the invention finds that the humidity in the sealed barrel is discharged slowly when solving the problem of preventing the back wall of the sealed barrel from frosting, and based on the fact, the invention provides a refrigerator and a control method thereof, which can reduce and prevent the back wall of a drawer from frosting and can solve the problem of low humidity discharging speed of the refrigerator.

In one aspect, the present invention provides a refrigerator, comprising:

the box body is internally provided with a storage compartment;

the air path system is arranged in the box body and is provided with a first air supply air duct;

the storage device is arranged in the storage compartment, a storage space is defined in the storage device, and a communication port is formed in one surface of the storage device;

the air guide device is arranged on the upper side of the storage device, a second air supply air channel extending along the front-rear direction is arranged in the air guide device, the second air supply air channel is communicated with the first air supply air channel, a first air port for supplying air to the front part and/or the front part of the storage device is arranged at the front part of the second air supply air channel, and a second air port with a downward opening is arranged at the rear part of the second air supply air channel;

the dehumidifying air supply device is arranged at the second air port;

the moisture permeable device is arranged at the communication port and is provided with a moisture permeable membrane so that moisture in the storage space is permeated in one direction to the outer side of the storage space through the moisture permeable membrane; and

and the humidity detection device is configured to detect the humidity in the storage space and/or the humidity outside the storage space and in the storage room, so that the refrigerator is in an open state according to the humidity value detected by the humidity detection device, and at least the air flow is promoted to flow through the outer side face of the moisture permeable membrane.

Optionally, the refrigerator further comprises a refrigeration system, wherein the refrigeration system is arranged in the refrigerator body and comprises an evaporator arranged in the air path system;

the air path system further comprises a refrigeration air supply device for promoting air flow from the first air supply air duct to the second air supply air duct;

the refrigerator is configured to enable the refrigeration air supply device to be in an open state when the refrigeration system works, and enable the dehumidification air supply device to be in an open state or a closed state according to the humidity value detected by the humidity detection device after the refrigeration system stops working and the refrigeration air supply device is closed.

Optionally, the dehumidifying air supply device is configured to enable the air flow in the second air supply channel to flow out of the second air inlet, and the refrigerator enables the dehumidifying air supply device to be in an open state when the refrigeration system works so as to supply air to the rear part and/or the rear part of the storage device; and/or the number of the groups of groups,

the dehumidifying air supply device is configured to enable air flow in the storage compartment to flow into the second air supply duct from the second air opening.

Optionally, the humidity detection device includes:

the first humidity detection device is arranged in the storage space; and

the second humidity detection device is arranged outside the storage space and is positioned in the storage room.

Optionally, the second humidity detecting device is adjacent to the moisture permeable device, and a distance between the first humidity detecting device and the moisture permeable device is greater than a distance between the second humidity detecting device and the moisture permeable device.

Optionally, the opening of the second air port faces directly below or front below and is located on the upper side of the rear end of the storage device;

the communication port is arranged on the upper surface of the storage device and is positioned at the front side of the second air port.

Optionally, the storage device is an air-conditioning fresh-keeping device, and comprises an air-conditioning membrane assembly, and the air-conditioning membrane assembly is configured to enable oxygen in the storage space to flow out of the storage space through the air-conditioning membrane assembly more than nitrogen in the storage space.

On the other hand, the invention also provides a control method for any refrigerator, which comprises the following steps:

detecting the humidity in the storage space to obtain a first humidity value, and/or detecting the humidity outside the storage space and in the storage room to obtain a second humidity value;

and controlling the dehumidifying air supply device according to the first humidity value and/or the second humidity value.

Optionally, controlling the humidity-removing air supply device according to the first humidity value and/or the second humidity value includes:

judging whether the difference value between the first humidity value and the second humidity value is larger than a first preset value or not;

if not, the dehumidifying air supply device is in an open state, and at least airflow is promoted to flow through the outer side surface of the moisture permeable membrane;

judging whether the difference value between the first humidity value and the second humidity value is smaller than a second preset value or not;

if yes, closing the refrigeration air supply device; the second preset value is smaller than the first preset value.

Optionally, before controlling the humidity-removing air supply device according to the first humidity value and/or the second humidity value, the method further comprises:

judging whether a refrigerating system of the refrigerator stops working or not;

and if the refrigeration system stops working, allowing the humidity-discharging air supply device to be controlled according to the first humidity value and/or the second humidity value.

Optionally, when determining whether the difference between the first humidity value and the second humidity value is smaller than a second preset value, determining whether the first humidity value is greater than a preset humidity value;

and when the difference value between the first humidity value and the second humidity value is smaller than a second preset value and the first humidity value is smaller than or equal to the preset humidity value, closing the dehumidifying air supply device.

The refrigerator and the control method of the invention have the advantages that the air guide device, the second air port and the dehumidifying air supply device are arranged, so that air flow can be guided to the front part of the cylinder body during refrigeration, cold air can be prevented from directly blowing the rear wall of the cylinder body, the phenomenon that frost is formed on the inner wall surface due to the fact that the local temperature of the rear wall surface is too low is prevented, the user experience is affected, and the air supply can be ensured not to directly blow the rear wall surface of the drawer to cause frost. And can be according to the humidity value outside the storing space for storing device outside air flows, especially the air flow near the film that drenches the moisture reduces storing device outside humidity value, prevents that drenches the film efficiency and reduces or become invalid completely and make the inside steam of storing space unable discharge, improves drenching the efficiency, and then prevents frosting, intelligent degree is high.

Furthermore, in the refrigerator and the control method, because the air-conditioning membrane component is arranged, the air atmosphere rich in nitrogen and poor in oxygen is formed in the storage space so as to be beneficial to food preservation, and the air atmosphere reduces the strength of oxygen respiration of fruits and vegetables by reducing the content of oxygen in the storage space of the fruits and vegetables, and simultaneously ensures the basic respiration function and prevents the fruits and vegetables from carrying out oxygen-free respiration, thereby achieving the aim of long-term preservation of the fruits and vegetables. The low-temperature short-term controlled atmosphere meat fresh-keeping method can also achieve the purposes of improving the taste, nutrition, flavor and appearance of the meat, reducing the oxidation strength of the meat by reducing the oxygen content in the meat storage space, and simultaneously inhibiting the aerophilic bacteria contained in the meat under the condition of low oxygen so as to achieve the purpose of meat fresh-keeping.

The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

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

fig. 2 is a schematic partial construction view of a refrigerator according to an embodiment of the present invention, in which arrows indicate air flow directions during cooling;

fig. 3 is a schematic structural view of a storage device in the refrigerator of fig. 1;

fig. 4 is a schematic partial construction view of a refrigerator according to an embodiment of the present invention;

FIG. 5 is a schematic partial construction view of a refrigerator according to an embodiment of the present invention, in which arrows indicate air flow directions at the time of dehumidification;

FIG. 6 is a schematic partial construction view of a refrigerator according to an embodiment of the present invention, in which arrows indicate air flow directions at the time of dehumidification;

fig. 7 is a schematic flowchart of a control method of a refrigerator according to an embodiment of the present invention.

Detailed Description

Fig. 1 is a schematic structural exploded view of a refrigerator according to an embodiment of the present invention. As shown in fig. 1 and referring to fig. 2 to 6, an embodiment of the present invention provides a refrigerator. The refrigerator includes a case 50, a storage device 20, an air guide device 60, a moisture permeable device 24, a humidity detection device, an air path system, a moisture removal and air supply device 80, and a refrigerating system.

A storage compartment is provided in the case 50. For example, a refrigerating compartment 51, a freezing compartment 52, and a temperature changing compartment 53 are provided in the case 50. The storage compartment may be one of the refrigerating compartment 51, the freezing compartment 52 and the temperature changing compartment 53, or the storage compartment may be a part of one of the refrigerating compartment 51, the freezing compartment 52 and the temperature changing compartment 53. The storage temperature of the refrigerated compartment 51 is generally between 2 ℃ and 10 ℃, preferably between 3 ℃ and 8 ℃. The temperature within the freezer compartment 52 typically ranges from-14 ℃ to-22 ℃. The temperature change compartment 53 may be adjusted as desired to store the appropriate food items, alternatively, the temperature change of the temperature change compartment 53 may range from-24 c to 10 c.

As shown in fig. 2, the air path system is disposed within the box 50, for example, within the rear wall of the storage compartment. The air path system includes a first supply air duct 76 and a refrigerated air supply arrangement 70. The lower part of the rear wall side of the storage compartment is provided with an air return port 75 which can be communicated with a first air supply duct 76. The refrigeration system is configured to provide cooling to the storage compartment and may be a refrigeration cycle system comprising a compressor, condenser, throttle device, evaporator 74, and the like. The evaporator 74 is disposed within the air path system. For example, the cooling blower 70 and the evaporator 74 are disposed in the first blower duct 76.

The storage device 20 is arranged in the storage compartment, a storage space is defined in the storage device 20, and a communication port is arranged on one surface of the storage device 20. The air guiding device 60 is disposed on the upper side of the storage device 20, and a second air supply duct extending along the front-rear direction is disposed in the air guiding device 60, and is communicated with the first air supply duct 76, specifically, the rear end of the second air supply duct is communicated with the upper end of the first air supply duct 76. The front part of the second air supply duct has a first air port 61 for supplying air to the front part and/or the front of the storage device 20, and the rear part of the second air supply duct has a second air port with a downward opening. For example, the second tuyere may be directed directly downward or forward downward. The air guiding device 60 may be an air guiding pipeline, a guiding plate, etc. The air guiding device 60 guides the air flow to the front portion of the storage device 20, so as to prevent the cold air from directly blowing the rear wall of the storage device 20, reduce or prevent the air flow from flowing to the rear wall of the storage device 20, prevent the rear wall from forming frost on the inner wall due to too low local temperature, and influence the user experience, i.e. ensure that the air supply does not directly blow the rear wall of the storage device 20 to cause frost. Further, the air guiding device 60 is spaced apart from the storage device 20 to facilitate the airflow flowing around the storage device 20 in the storage compartment.

The dehumidifying air-supplying device 80 may be installed at the second tuyere. The moisture-removing and air-supplying device 80 may be configured such that the air flow in the second air-supplying duct flows out from the second air port, and the refrigerator puts the moisture-removing and air-supplying device 80 in an opened state to supply air to the rear and/or rear of the storage device when the refrigeration system is operated, as shown in fig. 2. In some alternative embodiments, the moisture removal blower 80 is configured such that air flow within the storage compartment flows from the second air port into the second supply air duct, and the moisture removal blower 80 is deactivated when the refrigeration system is in operation, as shown in FIG. 6. In some embodiments of the present invention, the moisture-removing and air-supplying device 80 may have two rotational directions.

The moisture permeable device 24 is installed at the communication port of the storage device 20, and the moisture permeable device 24 has a moisture permeable membrane, so that moisture in the storage space permeates in one direction to the outside of the storage space through the moisture permeable membrane. The humidity detection device is configured to detect humidity inside the storage space and/or humidity outside the storage space and inside the storage compartment. The refrigerator is configured to put the humidity-exhausting air-supplying device 80 in an open state according to the humidity value detected by the humidity-detecting device, at least to promote the air flow to flow from the outer side face of the moisture-permeable membrane, which is the side face of the moisture-permeable membrane facing the storage compartment. As shown in fig. 5 and 6, the cooling air supply device 70 can accelerate the flow of air outside the storage device 20, accelerate the air circulation near the moisture permeable device 24, reduce the humidity value outside the storage device 20, prevent the moisture permeable film from decreasing in efficiency or failing completely to make the water vapor inside the storage space unable to be discharged, improve the moisture permeable efficiency, further prevent frosting, and have high intelligent and intelligent degrees.

In some preferred embodiments of the present invention, the refrigerator is configured to put the cooling air supply device in an on state when the cooling system is operated, and put the dehumidifying air supply device 80 in an on state or an off state according to a humidity value detected by the humidity detecting device after the cooling system is stopped and the cooling air supply device is turned off. That is, when the refrigerator needs to be cooled, the refrigerator is mainly cooled, and after the cooling is completed, the efficiency of the moisture permeable device 24 is improved. Further, when the air flow in the second air supply duct flows out from the second air opening, the refrigerator enables the moisture-removing air supply device 80 to be in an open state when the refrigeration system works so as to supply air to the rear part and/or the rear part of the storage device.

In some embodiments of the present invention, the humidity detection means comprises a first humidity detection means 71 and a second humidity detection means 72. The first humidity detecting device 71 is disposed in the storage space, and detects the humidity in the storage space to obtain a first humidity value. The second humidity detecting device 72 is disposed outside the storage space and in the storage compartment, and detects the humidity outside the storage space and in the storage compartment to obtain a second humidity value. When the difference between the first humidity value and the second humidity value is less than or equal to the first preset value, the humidity-discharging air supply device 80 is in an open state, and when the difference between the first humidity value and the second humidity value is less than the second preset value, the humidity-discharging air supply device 80 is closed. The second preset value is smaller than the first preset value.

Further, the second humidity detecting means 72 is adjacent to the moisture permeable means 24, and the distance between the first humidity detecting means 71 and the moisture permeable means 24 is larger than the distance between the second humidity detecting means 72 and the moisture permeable means 24. For example, the communication port is provided on the upper surface of the storage device 20. The second humidity detection device 72 is mounted on the lower surface of the air guide above the moisture permeable film. The communication port is positioned at the front side of the second air port. The second tuyere is opened to the right lower side or the front lower side, preferably to the moisture permeable device 24, and is located at the upper side of the rear end of the storage device. Both the moisture removal blower 80 and the refrigeration blower 70 may be fans.

As shown in fig. 2 to 6, in some embodiments of the present invention, the storage device 20 is preferably an air-conditioning fresh-keeping device. The storage device 20 may also include a barrel 21, a drawer 22, and an air regulating membrane assembly 23. The barrel 21 has a forward opening, and a drawer 22 is slidably mounted to the barrel 21 to operatively withdraw from the forward opening of the barrel 21 and insert the barrel 21 inwardly. The air-conditioning membrane assembly 23 is mounted on the cylinder 21, and the air-conditioning membrane assembly 23 has at least one air-conditioning membrane and an oxygen-enriched gas collection chamber, and the oxygen-enriched gas collection chamber can be communicated with an air extraction device such as a vacuum pump, so that the air-conditioning membrane assembly 23 is configured to enable oxygen in the cylinder 21 to permeate through the air-conditioning membrane more than nitrogen in the cylinder 21 into the oxygen-enriched gas collection chamber and flow out of the cylinder 21.

The refrigerator provided by the embodiment of the invention has the air-conditioning membrane assembly 23, so that the nitrogen-rich and oxygen-poor gas atmosphere beneficial to food preservation can be formed in the cylinder 21, and the gas atmosphere reduces the strength of aerobic respiration of fruits and vegetables by reducing the content of oxygen in the fruit and vegetable preservation space, and simultaneously ensures the basic respiration function and prevents the fruits and vegetables from carrying out anaerobic respiration, thereby achieving the aim of long-term preservation of fruits and vegetables. The low-temperature short-term controlled atmosphere meat fresh-keeping method can also achieve the purposes of improving the taste, nutrition, flavor and appearance of the meat, reducing the oxidation strength of the meat by reducing the oxygen content in the meat storage space, and simultaneously inhibiting the aerophilic bacteria contained in the meat under the condition of low oxygen so as to achieve the purpose of meat fresh-keeping.

Further, the air extracting device may be installed in the box 50, specifically, may be located at the rear portion of the storage compartment, and after the storage device 20 is installed in the storage compartment, the oxygen-enriched gas collecting cavity is communicated with the inlet of the air extracting device through a pipeline. In some embodiments, the suction device may be mounted directly to the barrel 21, forming an integral piece with the storage device 20.

In some embodiments of the present invention, self-locking sliding rails are disposed on both side walls of the cylinder 21; drawer 22 includes a body and an end cap mounted to the front end of the body; the body is slidably mounted to the self-locking slide rail such that the body remains within the barrel 21 after being fully inserted into the barrel 21. The end cap is in contact with the front end of the barrel 21 after the body is fully inserted into the barrel 21. By arranging the self-locking sliding rail, the drawer 22 is not easy to come out of the cylinder 21, and the sealing performance of the cylinder 21 can be ensured, so that a closed space is formed. Further, a sealing structure is provided between the end cap and the cylinder 21. The sealing structure can be a sealing ring and the like.

In some embodiments of the invention, a receiving cavity is provided in the top wall of the barrel 21 in communication with the inside of the barrel 21. The air-conditioning membrane assembly 23 is mounted in the receiving chamber. The front end of the air guiding means 60 is located at the front or front side of the receiving chamber. Further, the air conditioning membrane assembly 23 may be in a flat plate shape, and the air conditioning membrane assembly 23 may further include a support frame. The oxygen-enriched gas regulating membranes are preferably two or more, and are arranged on two sides of the supporting frame, so that the two oxygen-enriched gas regulating membranes and the supporting frame jointly enclose an oxygen-enriched gas collecting cavity. The storage device 20 also includes a blower. A first vent hole and a second vent hole are provided in a wall surface between the accommodation chamber of the top wall of the cylinder 21 and the inside of the cylinder 21. The first vent hole is spaced apart from the second vent hole to communicate the accommodating chamber with the cylinder 21 at different positions, respectively. The first vent holes and the second vent holes are small holes, and the number of the first vent holes and the second vent holes can be multiple. The blower may be disposed within the receiving chamber and configured to cause gas from the barrel 21 to enter the receiving chamber via the first vent and to cause gas from the receiving chamber to enter the barrel 21 via the second vent. That is, the blower may cause the gas of the cylinder 21 to return to the cylinder 21 via the first vent hole, the accommodation chamber, and the second vent hole in this order. The fan is preferably a centrifugal fan, and the air inlet is opposite to the first vent hole. The air outlet of the centrifugal fan can face the air-conditioning membrane assembly 23.

The top wall of the cylinder 21 is provided with a communication port which is arranged at the rear part of the top wall of the cylinder 21. The receiving chamber may be on the front side of the cylinder 21, i.e. the air-conditioning membrane assembly 23 is on the front side of the moisture permeable device 24.

In some embodiments of the present invention, the air guiding device 60 is disposed in the top wall of the storage compartment, as shown in fig. 1, and the air guiding device 60 is not directly visible in fig. 1. In some alternative embodiments the air guiding means 60 is arranged on the underside of the top wall of the storage compartment. The refrigerator further includes a front door body 40. The front door 40 is configured to open or close a forward opening of the storage compartment. The end cap is connected to the front door body 40. The endcap is spaced forwardly of the front door body 40 to permit air flow therethrough. Of course, the end cover may not be connected to the front door body 40, and when the front door body 40 is opened, the end cover may be opened. In some alternative embodiments of the present invention, as shown in fig. 1 and 4, the refrigerator further includes a slide rail assembly 30; the front door 40 is mounted to the case 50 by the slide rail assembly 30. In this embodiment, the height of the storage compartment may be greater than the height of the cylinder 21, so that only one cylinder 21 may be installed in the storage compartment in the height direction. The storage compartment is preferably a temperature change compartment 53.

In alternative embodiments of the invention, the storage compartment may be part of a larger refrigerator interior space, such as a refrigerated compartment 51 or a freezer compartment 52, which may share a door. The top wall of the storage compartment may be a partition plate disposed in the inner space, the air guiding device 60 is disposed in the partition plate or disposed at the lower side of the partition plate, and the cylinder 21 is disposed at the lower side of the partition plate.

Fig. 7 is a schematic flowchart of a control method of a refrigerator according to an embodiment of the present invention. As shown in fig. 7, an embodiment of the present invention further provides a control method for a refrigerator according to any one of the above embodiments, where the control method includes: and detecting the humidity in the storage space to obtain a first humidity value, and/or detecting the humidity outside the storage space and in the storage room to obtain a second humidity value. The humidity-exhausting blower 80 is based on the first humidity value and/or the second humidity value.

In some embodiments of the present invention, as shown in fig. 5, the humidity-draining and air-supplying device 80 is controlled according to the first humidity value and/or the second humidity value, and specifically includes: and judging whether the difference value between the first humidity value and the second humidity value is larger than a first preset value. If not, the moisture-removing blower 80 is turned on, and at least the air flow is caused to flow from the outer surface of the moisture-permeable film. If so, the dehumidifying air-sending device 80 is not turned on, even if the dehumidifying air-sending device 80 is in the off state. Further, whether the difference between the first humidity value and the second humidity value is smaller than a second preset value is continuously judged, and the second preset value is smaller than the first preset value. If yes, the moisture removal blower 80 is turned off. Otherwise, the operation of the dehumidifying air-sending device 80 is continued. When the humidity-discharging air-supplying device 80 is controlled according to the difference between the first humidity value and the second humidity value, the humidity in the storage space is gradually reduced and the external humidity is gradually increased when the moisture-permeability device 24 performs the unidirectional moisture permeability operation, and the difference between the first humidity value and the second humidity value is smaller and smaller until the difference is smaller than or equal to the first preset value, the humidity-discharging air-supplying device 80 is started, and the moisture permeability efficiency is improved. Further, the humidity in the storage space gradually decreases again, the external humidity is reduced under the action of the dehumidifying air supply device 80, then the basic of the reduction is unchanged, the reduction or the rising rate is reduced, finally, the difference between the inside and the outside of the storage space is smaller and smaller, when the difference between the humidity in the storage space and the humidity on the outside is smaller, the humidity in the storage space can be considered to be lower, the requirement is met, the difference between the inside and the outside is insufficient to enable the moisture permeability device 24 to work, and the dehumidifying air supply device 80 is closed, so that the energy is saved.

In some embodiments of the present invention, it should be noted that, for some reason, for example, when the humidity in the storage compartment suddenly increases, the humidity-expelling air-supplying device 80 may be in a closed state at this time, if the difference between the first humidity value and the second humidity value is determined to be smaller than the first preset value, or even smaller than the second preset value, the humidity-expelling air-supplying device 80 is turned on first, after the humidity-expelling air-supplying device 80 is turned on, the humidity value outside the storage space is obviously reduced, so as to ensure the moisture permeability efficiency of the moisture permeability device 24.

In some optional embodiments of the present invention, in order to further improve control accuracy, to prevent misoperation caused by a situation that the humidity inside and outside the storage space is relatively high, when determining whether the difference between the first humidity value and the second humidity value is smaller than the second preset value, determining whether the first humidity value is greater than the preset humidity value; when the difference between the first humidity value and the second humidity value is smaller than the second preset value, and the first humidity value is smaller than or equal to the preset humidity value, the humidity-discharging air supply device 80 is turned off.

In some embodiments of the present invention, in order to preferentially perform cooling and prevent frosting of the rear wall of the storage device 20, the control method of the refrigerator, as shown in fig. 7, further includes, before controlling the humidity-discharging and air-supplying device 80 according to the first humidity value and/or the second humidity value: it is determined whether the refrigerating system of the refrigerator is stopped and the cooling air supply device 70 is turned off. If the refrigeration system is inactive and the refrigeration blower 70 is off, the moisture removal blower 80 is allowed to be controlled based on the first humidity value and/or the second humidity value. If the cooling system is not stopped, cooling is performed at this time, and even if it is detected that the moisture-removing blower 80 needs to be turned on to improve the efficiency of the moisture-permeable device 24, the moisture-removing blower 80 is kept in the current state, and cooling is preferentially performed. When it should be noted that the humidity elimination blower 80 may have two operating states, when the humidity elimination blower 80 is in an on state during cooling, the humidity elimination blower 80 is kept in the current state, and when the humidity elimination blower 80 is in an off state during cooling, the humidity elimination blower 80 is kept in an off state. Further, the operation of the refrigerating system can be controlled according to the temperature in the storage compartment or the temperature in the storage space, and the temperature can be further detected by using the temperature sensor 73 arranged in the storage device 20. By providing the moisture-discharging and air-supplying device 80 at the second air port, as shown in fig. 5 and 6, the cooling capacity of the evaporator 74 can be utilized in the process of improving the efficiency of the moisture-permeable device 24, so to speak, the evaporator 74 is defrosted, and the overall efficiency of the refrigerator is improved.

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

Claims

1. A refrigerator, comprising:

the box body is internally provided with a storage compartment;

the storage device is arranged in the storage compartment, a storage space is defined in the storage device, and a communication port is formed in the upper surface of the storage device;

the air guide device is arranged on the upper side of the storage device, a second air supply air channel extending along the front-rear direction is arranged in the air guide device, the second air supply air channel is communicated with the first air supply air channel, a first air port for supplying air to the front part and/or the front part of the storage device is arranged at the front part of the second air supply air channel, a second air port with an opening facing to the right lower part or the front lower part is arranged at the second air supply air channel, the second air port is positioned at the rear part of the second air supply air channel and is positioned on the upper side of the rear end of the storage device, and the second air port is positioned behind the first air port; the communication port is positioned at the front side of the second air port;

the dehumidifying air supply device is arranged at the second air port;

the humidity detection device is configured to detect the humidity in the storage space and/or the humidity outside the storage space and in the storage compartment, so that the refrigerator is in an open state according to the humidity value detected by the humidity detection device, and at least airflow is caused to flow through the side face, facing the storage compartment, of the moisture permeable membrane;

the storage device is arranged at intervals with the rear wall of the storage compartment, and the air guide device is arranged at intervals with the storage device, so that the second air supply air duct is arranged at intervals with the storage device.

2. The refrigerator of claim 1, further comprising a refrigeration system disposed within the cabinet, the refrigeration system including an evaporator disposed within the air path system;

3. The refrigerator according to claim 2, wherein,

the dehumidifying air supply device is configured to enable air flow in the second air supply channel to flow out of the second air inlet, and the refrigerator enables the dehumidifying air supply device to be in an open state when the refrigerating system works so as to supply air to the rear part and/or the rear part of the storage device; and/or the number of the groups of groups,

4. The refrigerator of claim 1, wherein the humidity detecting means comprises:

the first humidity detection device is arranged in the storage space; and

5. The refrigerator according to claim 4, wherein,

the distance between the first humidity detection device and the moisture permeable device is larger than the distance between the second humidity detection device and the moisture permeable device, so that the second humidity detection device is adjacent to the moisture permeable device.

6. The refrigerator according to claim 1, wherein,

the storage device is an air-conditioning fresh-keeping device and comprises an air-conditioning membrane assembly, wherein the air-conditioning membrane assembly is configured to enable oxygen in the storage space to flow out of the storage space through the air-conditioning membrane assembly more than nitrogen in the storage space.

7. A control method for the refrigerator of any one of claims 1 to 6, characterized in that the control method comprises:

8. The control method according to claim 7, wherein,

controlling the dehumidifying air supply device according to the first humidity value and/or the second humidity value, wherein the dehumidifying air supply device comprises:

if not, the dehumidifying air supply device is in an open state, and at least airflow is promoted to flow through the side face, facing the storage compartment, of the moisture permeable membrane;

if yes, closing the dehumidifying air supply device; the second preset value is smaller than the first preset value.

9. The control method according to claim 7, characterized by further comprising, before controlling the humidity elimination blower according to the first humidity value and/or the second humidity value: