阅读说明：本技术 冰箱及其控制方法 (Refrigerator and control method thereof ) 是由 崔展鹏 王磊 姬立胜 于 2020-04-03 设计创作，主要内容包括：本发明提供了一种冰箱及其控制方法。冰箱包括：箱体,箱体内设置有储物间室；储物装置,设置于储物间室内,储物装置内限定有储物空间,储物装置的一个表面上设置有连通口；透湿装置,安装于储物装置的连通口处,且透湿装置具有透湿膜,以使储物空间内的水分经由透湿膜向储物空间的外侧单向渗透；湿度检测装置,配置成检测储物空间内的湿度和/或储物空间外且处于储物间室内的湿度；和送风装置,设置于储物间室内,配置成根据湿度检测装置检测到的湿度值启动,以促使气流从透湿装置外侧和储物装置的开设有连通口的表面外侧流过。加快储物装置外部空气流动,降低储物装置外侧湿度值,提高透湿效率,智能化、智慧化程度高。(The invention provides a refrigerator and a control method thereof. The refrigerator includes: the box body is internally provided with a storage compartment; the storage device is arranged in the storage chamber, a storage space is limited in the storage device, and a communication port is formed in one surface of the storage device; the moisture permeable device is arranged at the communication port of the storage device and is provided with a moisture permeable film so that moisture in the storage space can be unidirectionally permeated to the outer side of the storage space through the moisture permeable film; 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; and the air supply device is arranged in the storage compartment and is configured to be started according to the humidity value detected by the humidity detection device so as to promote the airflow to flow through the outer side of the moisture permeation device and the outer side of the surface of the storage device, which is provided with the communication port. The outside air of the storage device is accelerated to flow, the outside humidity value of the storage device is reduced, the moisture permeation efficiency is improved, and the intelligent degree are high.)

1. The utility model provides a refrigerator, includes the box, be provided with storing compartment in the box, its characterized in that still includes:

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

the moisture permeable device is arranged at the communication port of the storage device and is provided with a moisture permeable film so that moisture in the storage space can permeate to the outer side of the storage space in a single direction through the moisture permeable film;

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 chamber; and

and the air supply device is arranged in the storage compartment and is configured to be started according to the humidity value detected by the humidity detection device so as to promote airflow to flow through the outer side of the moisture permeation device and the outer side of the surface of the storage device, which is provided with the communication port.

2. The refrigerator according to claim 1, wherein the humidity detecting means comprises:

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

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

3. The refrigerator according to claim 2,

the second humidity detection device is close to the moisture permeation device, and the distance between the first humidity detection device and the moisture permeation device is larger than the distance between the second humidity detection device and the moisture permeation device.

4. The refrigerator according to claim 1,

the air supply device is positioned between the surface of the storage device provided with the communication port and the chamber wall of the storage chamber;

the communication opening is arranged on the upper surface of the storage device, and the air supply device is configured to promote airflow to flow from back to front along the upper surface.

5. The refrigerator of claim 1, further comprising an air guide device;

the air guide device is arranged on the upper side of the storage device, the rear end of the air guide device is connected to the air supply outlet, and the front end of the air guide device is configured to supply air to the front part and/or the front part of the storage device.

6. The refrigerator according to claim 1,

the storage device is a modified atmosphere preservation device and comprises a modified atmosphere module, and the modified atmosphere module is configured to enable more oxygen in the storage space to flow out of the storage space through the modified atmosphere module relative to nitrogen in the storage space.

7. The refrigerator according to claim 1,

the storage device comprises a barrel and a drawer arranged on the barrel, the barrel is provided with a front opening, an end cover of the drawer is arranged between the front end of the barrel in a sealing mode, and the barrel is provided with a communication port.

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

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

9. The control method according to claim 8, wherein controlling the air blowing device in accordance with 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 air supply device is opened to promote airflow to flow through the outer side of the surface, provided with the communication port, of the storage device;

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 so, closing the air supply device; the second preset value is smaller than the first preset value.

10. The control method according to claim 9,

when judging whether the difference value between the first humidity value and the second humidity value is smaller than a second preset value, judging whether the first humidity value is larger 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 air supply device.

Technical Field

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

Background

The refrigerator is a refrigerating device for keeping constant low temperature, and is a civil product for keeping food or other articles in a constant low-temperature cold state. With the improvement of life quality, the requirements of consumers on the preservation of stored foods are higher and higher, and especially the requirements on the color, the taste and the like of the foods are higher and higher. The method reduces the oxygen content in the meat storage space and the oxidation strength of the meat by various methods, and inhibits the aerobic bacteria in the meat under the condition of low oxygen, thereby achieving the aim of keeping the meat fresh. Because the required condition of oxygen control 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 refrigeration evaporator, the temperature of the air supply is about minus 25 ℃ or even lower, if the air supply is directly blown to the rear wall surface of the oxygen control sealed barrel, the local temperature of the rear wall surface is too low, and frosting is easily formed on the inner wall surface, so that 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 the inventor solves the problem of how to prevent the rear wall of the sealed barrel from frosting, and based on the humidity, the invention provides a refrigerator and a control method thereof, which aim to solve the problem of slow humidity discharging speed of the refrigerator.

In one aspect, the present invention provides a refrigerator, including a box body, in which a storage compartment is provided, wherein the refrigerator further includes:

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

the moisture permeable device is arranged at the communication port of the storage device and is provided with a moisture permeable film so that moisture in the storage space can permeate to the outer side of the storage space in a single direction through the moisture permeable film;

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 chamber; and

and the air supply device is arranged in the storage compartment and is configured to be started according to the humidity value detected by the humidity detection device so as to promote airflow to flow through the outer side of the moisture permeation device and the outer side of the surface of the storage device, which is provided with the communication port.

Optionally, the humidity detection device includes:

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

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

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

Optionally, the communication port is disposed on an upper surface of the storage device, and the air supply device is configured to promote airflow from back to front along the upper surface.

Optionally, the refrigerator further comprises an air guide device;

the air guide device is arranged on the upper side of the storage device, the rear end of the air guide device is connected to the air supply outlet, and the front end of the air guide device is configured to supply air to the front part and/or the front part of the storage device.

Optionally, the storage device is a modified atmosphere device comprising a modified atmosphere module configured to allow more oxygen in the storage space to flow out of the storage space through the modified atmosphere module relative to nitrogen in the storage space.

Optionally, the storage device comprises a barrel and a drawer mounted on the barrel, the barrel is provided with a front opening, an end cover of the drawer is arranged between the front end of the barrel in a sealing mode, and the barrel is provided with the communication port.

Optionally, the air supply device is located between the surface of the storage device, on which the communication port is opened, and a compartment wall of the storage compartment.

In another aspect, the present invention further provides a control method for any one of the above refrigerators, including:

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

Optionally, controlling the 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 air supply device is opened to promote airflow to flow through the outer side of the surface, provided with the communication port, of the storage device;

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 so, closing the air supply device; the second preset value is smaller than the first preset value.

Optionally, when determining whether the difference between the first humidity value and the second humidity value is smaller than a second preset value, it is further determined whether the first humidity value is larger 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 air supply device.

In the refrigerator and the control method thereof, the moisture permeable device and the air supply device are arranged, so that the flow of air outside the storage device can be accelerated according to the humidity values inside and outside the storage space, the humidity value outside the storage device can be reduced, the problem that the moisture in the storage space cannot be discharged due to the reduction or complete failure of the efficiency of the moisture permeable film is solved, the moisture permeable efficiency is improved, the frosting is prevented, and the intelligent and intelligent degree is high.

Furthermore, in the refrigerator and the control method, the air guide device is arranged to guide the airflow to the front part of the storage device, so that cold air can be prevented from directly blowing the rear wall of the storage device, the local temperature of the rear wall surface is prevented from being too low, frosting is prevented from being formed on the inner wall surface, user experience is prevented from being influenced, and air supply can be ensured not to directly blow the rear wall surface of the storage device to cause frosting.

Furthermore, in the refrigerator and the control method, the air adjusting membrane component is arranged, so that a nitrogen-rich and oxygen-poor gas atmosphere which is beneficial to food preservation can be formed in the storage space, the oxygen content of the oxygen in the fruit and vegetable storage space is reduced in the gas atmosphere, the aerobic respiration intensity of the fruits and vegetables is reduced, the basic respiration is ensured, and the fruits and vegetables are prevented from being subjected to anaerobic respiration, so that the aim of preserving the fruits and vegetables for a long time is fulfilled. The method can also realize the air-conditioned short-term meat preservation at low temperature, improve the taste, nutrition, flavor and appearance of the meat, reduce the oxidation strength of the meat by reducing the oxygen content in the meat preservation space, and inhibit the aerobic bacteria contained in the meat under the condition of low oxygen, thereby achieving the purpose of meat preservation.

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

Drawings

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

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

fig. 2 is a schematic partial structural view of a refrigerator according to one embodiment of the present invention;

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

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

fig. 5 is a schematic flowchart of a control method of a refrigerator according to one embodiment of the present invention.

Detailed Description

Fig. 1 is a schematic structural exploded view of a refrigerator according to one embodiment of the present invention. As shown in fig. 1 and referring to fig. 2 and 3, an embodiment of the present invention provides a refrigerator. The refrigerator comprises a refrigerator body 50, a storage device 20, a moisture permeable device 24, a humidity detection device, an air supply device 70 and a refrigeration 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 cabinet. The locker compartment may be one of the refrigerating compartment 51, the freezing compartment 52, and the temperature varying compartment 53, or the locker compartment may be a portion of one of the refrigerating compartment 51, the freezing compartment 52, and the temperature varying compartment 53. The storage temperature of the refrigerated compartment 51 is generally between 2 ℃ and 10 ℃, preferably between 3 ℃ and 8 ℃. The temperature in the freezer compartment 52 typically ranges from-14 ℃ to-22 ℃. The temperature-changing compartment 53 can be adjusted as needed to store suitable food, optionally, the temperature-changing compartment 53 has a temperature range of-24 ℃ to 10 ℃. The refrigerating system is configured to provide cold energy to the storage compartment, and can be a refrigerating cycle system composed of a compressor, a condenser, a throttling device, an evaporator and the like.

As shown in fig. 1 and 2, the storage device 20 is disposed in the storage compartment, a storage space is defined in the storage device 20, and a communication port is provided on one surface of the storage device 20. The moisture permeable device 24 can be installed at the communication port, and the moisture permeable device 24 has a moisture permeable film so as to make moisture flow in a single direction, and when the humidity in the storage space is greater than the humidity outside the storage space, the moisture in the storage space flows out of the storage space through the moisture permeable film. That is to say, the moisture permeable film enables the moisture in the storage space to unidirectionally permeate to the outer side of the storage space through the moisture permeable film, so that the storage space has the humidity meeting the requirement.

The humidity detection device is configured to detect humidity in the storage space and/or humidity outside the storage space and in the storage compartment. The air supply device 70 is disposed in the storage compartment and is configured to be activated according to the humidity value detected by the humidity detection device so as to promote the airflow to flow through the outside of the moisture permeation device 24 and the outside of the surface of the storage device 20, on which the communication port is opened. Can accelerate storage device 20 outside air to flow, accelerate the air cycle near penetrating through wet device 24, reduce storage device 20 outside humidity value, prevent that moisture permeable membrane efficiency from reducing or totally inefficacy makes the unable discharge of the inside steam in storing space, improve and pass through wet efficiency, and then prevent to frosty, intelligent degree height.

In some embodiments of the present invention, the humidity detection means includes a first humidity detection means 71 and a second humidity detection means 72. The first humidity detection device 71 is disposed in the storage space, and detects humidity in the storage space to obtain a first humidity value. The second humidity detection device 72 is disposed outside the storage space and in the storage room, and detects the humidity outside the storage space and in the storage room to obtain a second humidity value. The air blowing device 70 may be configured to be turned on when a difference between the first humidity value and the second humidity value is less than or equal to a first preset value, and turned off until the difference between the first humidity value and the second humidity value is less than a second preset value. The second preset value is smaller than the first preset value.

Further, the second humidity detection device 72 is adjacent to the moisture permeation device 24, and the distance between the first humidity detection device 71 and the moisture permeation device 24 is larger than the distance between the second humidity detection device 72 and the moisture permeation device 24. The air supply device 70 may be a fan, such as an axial fan, disposed between the surface of the storage device having the communication opening and the corresponding compartment wall of the storage compartment. The communication port is provided in an upper surface of the storage device 20, and the air blowing device 70 is configured to urge an air flow to flow from the rear to the front along the upper surface. The second humidity detection device 72 is disposed on the upper side of the moisture permeation device 24, and the first humidity detection device 71 is disposed at the bottom of the storage space.

In some embodiments of the present invention, as shown in fig. 2 and 3, the refrigerator further includes an air guide device 60. The storage device may include a barrel 21. The cylinder 21 has a forward opening, and the space in the cylinder 21 may be the storage space. An air supply outlet can be arranged on the rear wall of the storage chamber, and an air return inlet is arranged on one side of the rear wall of the storage chamber and used for refrigerating airflow circulation in the storage chamber. The air return inlet is positioned below the air supply outlet. The air guide device 60 is provided above the cylinder 21, a rear end of the air guide device 60 is connected to the air supply port, and a front end of the air guide device 60 is arranged to supply air to a front portion and/or a front portion of the cylinder 21. The air guiding device 60 may be an air guiding duct, a flow guiding plate, etc. Air ducting 60 guides the air current to the front portion of barrel 21, can prevent that cold wind from directly blowing the back wall of barrel 21, prevents that back wall local temperature from crossing excessively and forming the frosting including the wall, influences user experience, can guarantee that the air supply can not directly blow the drawer back wall and cause the frosting. Further, the air guide device 60 is spaced from the cylinder 21 so as to facilitate the air flow around the cylinder 21 in the storage compartment.

In some embodiments of the present invention, the storage device 20 is preferably a modified atmosphere preservation device. The storage device 20 may further comprise a drawer 22 and a modified atmosphere module 23. The drawer 22 is slidably mounted to the barrel 21 to operatively withdraw from and insert into the barrel 21 outwardly from the forward opening of the barrel 21. The gas-regulating membrane module 23 is installed on the cylinder 21, and the gas-regulating membrane module 23 has at least one gas-regulating membrane and an oxygen-enriched gas collection cavity, which can be communicated with a gas-extracting device such as a vacuum pump, so that the gas-regulating membrane module 23 is configured to make more oxygen in the cylinder 21 penetrate the gas-regulating membrane into the oxygen-enriched gas collection cavity and flow out of the cylinder 21 relative to nitrogen in the cylinder 21.

The refrigerator provided by the embodiment of the invention has the controlled atmosphere membrane component 23, so that a nitrogen-rich and oxygen-poor gas atmosphere which is beneficial to food preservation can be formed in the cylinder 21, the oxygen content in the fruit and vegetable storage space is reduced by the gas atmosphere, the aerobic respiration intensity of the fruit and vegetable is reduced, the basic respiration is ensured, and the anaerobic respiration of the fruit and vegetable is prevented, so that the purpose of long-term preservation of the fruit and vegetable is achieved. The method can also realize the air-conditioned short-term meat preservation at low temperature, improve the taste, nutrition, flavor and appearance of the meat, reduce the oxidation strength of the meat by reducing the oxygen content in the meat preservation space, and inhibit the aerobic bacteria contained in the meat under the condition of low oxygen, thereby achieving the purpose of meat preservation.

Further, the air extractor can be installed on the box 50, and specifically can be located at the rear portion of the storage chamber, and after the storage device 20 is installed in the storage chamber, the oxygen-enriched gas collection cavity is communicated with the inlet of the air extractor through a pipeline. In some embodiments, the suction device can be mounted directly to the canister 21, forming an integral part with the storage device 20. The air supply outlet and the air return outlet which are communicated with the storage chamber can be provided with air doors so as to form a sealed space in the storage chamber when the storage chamber is not refrigerated, and further the purpose of controlling the change of the controlled atmosphere components is achieved.

In some embodiments of the present invention, the two side walls of the cylinder 21 are both provided with self-locking sliding rails; the drawer 22 comprises a body and an end cover arranged at the front end of the body; the body is slidably mounted to a self-locking slide rail so that the body remains within the barrel 21 after it is fully inserted into the barrel 21. The end cap contacts against the front end of the barrel 21 after the body is fully inserted into the barrel 21. By arranging the self-locking slide rail, the drawer 22 is ensured not to easily come out of the cylinder 21, and the sealing performance of the cylinder 21 can be ensured to form a closed space. Further, a sealing structure is arranged between the end cover 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 modified atmosphere module 23 is mounted to the receiving cavity. The front end of the air guide device 60 is located at the front part or the front side of the accommodating cavity. Further, the modified atmosphere module 23 may be in a flat plate shape, and the modified atmosphere module 23 may further include a support frame. The controlled atmosphere membranes are preferably oxygen-enriched membranes, and can be two, and the two controlled atmosphere membranes are arranged on two sides of the supporting frame, so that the two controlled atmosphere membranes and the supporting frame jointly enclose the oxygen-enriched gas collecting cavity. The storage device 20 further includes a blower. A first vent hole and a second vent hole are opened in a wall surface between the housing 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 hole and the second vent hole are both small holes, and the number of the first vent hole and the second vent hole can be multiple. The blower may be disposed in the accommodating chamber, configured to cause the gas of the barrel 21 to enter the accommodating chamber via the first vent hole, and cause the gas in the accommodating chamber to enter the barrel 21 via the second vent hole. That is, the blower may cause the air of the drum 21 to return to the drum 21 through the first vent hole, the accommodating 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 air vent. The air outlet of the centrifugal fan can face the modified atmosphere module 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 holding cavity can be at the front side of the cylinder 21, i.e. the modified atmosphere module 23 is at the front side of the moisture permeable device 24.

In some embodiments of the present invention, the air guiding device 60 is disposed in a top wall of the storage compartment, as shown in fig. 1, and is disposed in the top wall, and the air guiding device 60 cannot be directly seen in fig. 1. In some alternative embodiments, the air guiding device 60 is disposed on the lower side of the top wall of the storage compartment. The refrigerator also includes a front door 40. The front door 40 is configured to open or close a forward opening of the storage compartment. The end cap is attached to the front door body 40. The end cap is spaced forwardly of the front door body 40 to allow airflow therethrough. Of course, the end cap may not be connected to the front door 40, and when the front door 40 is opened, the front door 40 is opened first, and then the end cap is 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 cabinet 50 via 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-changing compartment 53.

In some alternative embodiments of the present invention, the storage compartment may be a part of a larger internal space of the refrigerator, for example, the internal space may be a refrigerating compartment 51 or a freezing compartment 52, and the internal space may share a door. The top wall of the storage compartment can be a partition board arranged in the inner space, the air guide device 60 is arranged in the partition board or arranged on the lower side of the partition board, and the barrel 21 is arranged on the lower side of the partition board.

Fig. 5 is a schematic flowchart of a control method of a refrigerator according to one embodiment of the present invention. As shown in fig. 5, an embodiment of the present invention further provides a control method for a refrigerator in any of the above embodiments, where the control method includes: the humidity that detects in the storing space obtains first humidity value, and/or detects outside the storing space and be in the indoor humidity of storing room and obtain the second humidity value. The air supply device 70 is controlled according to the first humidity value and/or the second humidity value.

In some specific embodiments of the present invention, as shown in fig. 5, the controlling the air supply device 70 according to the first humidity value and/or the second humidity value 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 or not. If not, the air supply device 70 is opened to promote the air flow to flow through the surface outside of the storage device, wherein the communication port is formed in the surface. If so, the blower 70 is not turned on. And further, continuously judging whether the difference value between the first humidity value and the second humidity value is smaller than a second preset value, wherein the second preset value is smaller than the first preset value. If so, the blower 70 is turned off. Otherwise, the blower 70 continues to be kept in operation. The opening of the air supply device 70 is controlled according to the difference value between the first humidity value and the second humidity value, when the moisture permeation device 24 conducts moisture one-way permeation work, the humidity in the storage space is gradually reduced, the external humidity is gradually increased, the difference value between the two is smaller and smaller, and when the difference value is smaller than or equal to a first preset value, the air supply device 70 is opened, and the moisture permeation efficiency is improved. Further, humidity in the storage space is gradually reduced again, outside humidity reduces under air supply arrangement 70's effect earlier, and later on the basis of reducing unchangeable, reduce or the rising rate reduces, finally makes the difference between the inside and outside of storage space littleer and more, when the difference between humidity in the storage space and the humidity of the outside is less, can think humidity in the storage space step-down, satisfy the requirement, the difference between inside and outside is not enough to make and pass through moisture vapor device 24 work, air supply arrangement 70 stops, and is energy-conserving.

In some embodiments of the present invention, it should be noted that, for some reasons, for example, when the humidity in the storage space is suddenly increased, the air supply device 70 may be in the off state, if the difference between the first humidity value and the second humidity value is smaller than the first preset value, or even smaller than the second preset value, the air supply device 70 is started first, and after the air supply device 70 is started, the humidity outside the storage space is obviously reduced, so as to ensure the moisture permeation efficiency of the moisture permeation device.

In some optional embodiments of the present invention, in order to further improve the control accuracy and prevent the misoperation caused by the case that the humidity inside and outside the storage space is relatively large, when determining whether the difference between the first humidity value and the second humidity value is smaller than the second preset value, it is further determined whether the first humidity value is larger than the preset humidity value; when the difference 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, the air supply device 70 is turned off.

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