CN113623934B

CN113623934B - Control method of air-cooled refrigerator and air-cooled refrigerator

Info

Publication number: CN113623934B
Application number: CN202010383762.XA
Authority: CN
Inventors: 徐同; 王铭; 王文椿
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: 2020-05-08
Filing date: 2020-05-08
Publication date: 2022-10-28
Anticipated expiration: 2040-05-08
Also published as: CN113623934A

Abstract

The invention provides a control method of an air-cooled refrigerator and the air-cooled refrigerator. The control method of the air-cooled refrigerator comprises the following steps: acquiring an actual temperature value and an actual humidity value in the sealed container, and calculating the absolute water content according to the actual temperature value and the actual humidity value; acquiring a target humidity value in the sealed container, and calculating a target temperature value according to the absolute water content and the target humidity value; judging whether the sealed container needs to be humidified according to the actual humidity value; and if so, controlling the humidifying device or the air supply outlet to be opened according to the target temperature value. According to the scheme, after humidification is determined, the specific humidification mode is determined according to the target temperature value, the condition that the temperature of the sealed container does not meet the storage requirement while humidification is avoided, the temperature and the humidity in the sealed container are considered, and the food material fresh-keeping effect is improved.

Description

Control method of air-cooled refrigerator and air-cooled refrigerator

Technical Field

The invention relates to the technical field of household appliances, in particular to an air-cooled refrigerator and a control method thereof.

Background

With the increasing development of society and the increasing living standard of people, the rhythm of life of people is faster and faster, so that people are willing to buy a lot of food to place in a refrigerator, and the refrigerator becomes one of the indispensable household appliances in daily life of people. Refrigerators are generally classified into air-cooled refrigerators and direct-cooled refrigerators according to different cooling methods. In which a direct-cooling refrigerator cools foods by natural convection of air in the refrigerator. Because the evaporator of the direct-cooling refrigerator is the inner wall of the refrigerator, a defrosting system cannot be arranged, and manual defrosting is needed. In order to save time and energy of manual defrosting, people often choose an air-cooled refrigerator. The air-cooled refrigerator is provided with an evaporator inside an air duct, and then cold energy generated by the evaporator is conveyed to each storage space of the refrigerator through a fan and the air duct.

The existing air-cooled refrigerator is often provided with a sealed container, and food materials are kept fresh by adjusting the temperature and humidity inside the sealed container. However, the conventional sealed container is indirectly refrigerated through other compartments, and the temperature cannot be controlled independently. Moreover, the temperature often changes when the humidity in the sealed container is adjusted, and the humidity and the temperature cannot meet the storage requirement of food materials at the same time, so that the storage effect is influenced.

Disclosure of Invention

The invention aims to improve the fresh-keeping effect of food materials by taking account of the temperature and the humidity in the sealed container.

A further object of the invention is to improve the accuracy of the regulation of temperature and humidity inside the sealed container, improving the user experience.

Particularly, the invention provides a control method of an air-cooled refrigerator, wherein a sealed container is arranged in the air-cooled refrigerator, a humidifying device is arranged in the sealed container, an air supply opening controlled to be opened and closed is arranged on the side wall of the sealed container, and the control method of the air-cooled refrigerator comprises the following steps: acquiring an actual temperature value and an actual humidity value in the sealed container, and calculating absolute water content according to the actual temperature value and the actual humidity value; acquiring a target humidity value in the sealed container, and calculating a target temperature value according to the absolute water content and the target humidity value; judging whether the sealed container needs to be humidified according to the actual humidity value; and if so, controlling the humidifying device or the air supply outlet to be opened according to the target temperature value.

Optionally, the step of determining whether the sealed container needs to be humidified according to the actual humidity value comprises: acquiring a preset humidity range of the sealed container; judging whether the actual humidity value is smaller than the minimum value in the preset humidity range or not; and if so, determining that the sealed container needs humidification.

Optionally, the method further comprises the following steps of obtaining the preset humidity range of the sealed container: the method comprises the following steps of obtaining a preset temperature range of the sealed container, and controlling the humidifying device or the air supply outlet to be opened according to a target temperature value: judging whether the target temperature value is smaller than the minimum value in a preset temperature range or not; and if the humidity value reaches the target humidity value, controlling the humidifying device to be started until the inside of the sealed container reaches the target humidity value, and if the humidity value does not reach the target humidity value, controlling the air supply outlet to be started until the inside of the sealed container reaches the target temperature value.

Optionally, it is determined that the sealed container requires dehumidification when the actual humidity value is greater than a maximum value in a preset humidity range.

Optionally, a heating device is further disposed inside the sealed container, a damper controlled to open and close is further disposed on a side wall of the sealed container, and after the step of determining that the sealed container needs to be dehumidified, the method further includes: and controlling the heating device or the air door to be opened according to the target temperature value.

Optionally, the step of controlling the heating device or the damper to be opened according to the target temperature value includes: judging whether the target temperature value is larger than the maximum value in a preset temperature range or not; and if the humidity value is within the range of the target humidity value, controlling the air door to be opened until the inside of the sealed container reaches the target humidity value, and if the humidity value is not within the range of the target humidity value, controlling the heating device to be opened until the inside of the sealed container reaches the target temperature value.

Optionally, the step of calculating the absolute water content from the actual temperature value and the actual humidity value comprises: matching the actual temperature values in a preset comparison table to obtain corresponding actual saturated water content; and calculating a product of the actual saturated moisture content and the actual humidity value as an absolute moisture content.

Optionally, the step of calculating the target temperature value from the absolute water content and the target humidity value comprises: calculating a quotient of the absolute water content and the target humidity value as a target saturated water content; and matching in the comparison table according to the target saturated water content to obtain a corresponding target temperature value.

Optionally, the bottom wall of the sealed container is a cold guiding plate, and the air supply outlet is configured to be communicated with a refrigeration air path of the air-cooled refrigerator when being opened so as to blow cold air to the cold guiding plate, and the sealed container is indirectly refrigerated through the cold guiding plate.

According to another aspect of the present invention, there is also provided an air-cooled refrigerator, comprising a control device, the control device comprising a processor and a memory, wherein the memory stores a control program, and the control program is used for implementing the control method of the air-cooled refrigerator when being executed by the processor.

The invention discloses a control method of an air-cooled refrigerator and the air-cooled refrigerator, wherein a sealed container is arranged in the air-cooled refrigerator, a humidifying device is arranged in the sealed container, an air supply opening controlled to be opened and closed is arranged on the side wall of the sealed container, an absolute water content is calculated according to an actual temperature value and an actual humidity value in the sealed container, a target humidity value in the sealed container is obtained, a target temperature value is calculated according to the absolute water content and the target humidity value, whether the sealed container needs to be humidified is judged according to the actual humidity value, and when the result is yes, the humidifying device or the air supply opening is controlled to be opened according to the target temperature value. After the humidification is determined, the specific humidification mode is determined according to the target temperature value, the humidification is avoided, meanwhile, the temperature of the sealed container cannot meet the storage requirement, the temperature and the humidity inside the sealed container are considered, and the fresh-keeping effect of food materials is improved.

Further, according to the control method of the air-cooled refrigerator and the air-cooled refrigerator, the bottom wall of the sealed container is the cold guide plate, the air supply opening is configured to be communicated with the refrigerating air path of the air-cooled refrigerator when the air supply opening is opened so as to blow cold air to the cold guide plate, the sealed container is indirectly refrigerated through the cold guide plate, and humidity change caused by direct blowing of air into the sealed container is prevented. When humidification is needed, if the target temperature value is smaller than the minimum value in the preset temperature range, the humidification device is controlled to be started, and humidification is achieved by increasing the absolute water content; and if the target temperature value is greater than or equal to the minimum value in the preset temperature range, controlling the opening of the air supply outlet, and realizing humidification by cooling and reducing the saturated water content. When dehumidification is needed, if the target temperature value is larger than the maximum value in the preset temperature range, the air door is controlled to be opened, and dehumidification is achieved by reducing the absolute water content; and if the target temperature value is less than or equal to the maximum value in the preset temperature range, controlling the heating device to be started, and heating and increasing the saturated water content to realize dehumidification. Mode scientific and reasonable of regulating temperature and humidity promotes the storing condition, effectively promotes the regulation precision of the temperature in the sealed container and humidity, promotes user's use and experiences.

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 view of an air-cooled refrigerator according to an embodiment of the present invention;

fig. 2 is a partial structural view of a hermetic container in an air-cooled refrigerator according to an embodiment of the present invention;

fig. 3 is a block diagram illustrating a control apparatus of an air-cooled refrigerator according to an embodiment of the present invention;

fig. 4 is a schematic view of a control method of an air-cooled refrigerator according to an embodiment of the present invention; and

fig. 5 is a detailed flowchart of a control method of an air-cooled refrigerator according to an embodiment of the present invention.

Detailed Description

The embodiment provides an air-cooled refrigerator at first, can compromise inside temperature and humidity of sealed container, improves the fresh-keeping effect of eating the material. Fig. 1 is a schematic structural view of an air-cooled refrigerator 100 according to an embodiment of the present invention. As shown in fig. 1, the air-cooled refrigerator 100 may generally include: a cabinet 110 and a door 120.

Wherein a storage space is defined inside the case body 110. The number and structure of the storage spaces can be configured as required, and fig. 1 shows the case of a first space, a second space and a third space which are arranged in sequence from top to bottom; the space can be configured into a refrigerating space, a freezing space, a temperature changing space or a fresh keeping space according to different purposes. Each storage space can be divided into a plurality of storage areas by the partition plate, and the articles are stored by the racks or the drawers.

The door 120 is disposed on a front surface of the cabinet 110 to enclose the storage space. The door bodies 120 may be disposed corresponding to the storage spaces, that is, each storage space corresponds to one or more door bodies 120. The number of the storage spaces and the door 120 and the functions of the storage spaces can be selected according to the actual situation. The air-cooled refrigerator 100 of this embodiment is provided with a first door, a second door, and a third door respectively corresponding to the first space, the second space, and the third space that are sequentially arranged from top to bottom. The door 120 may be pivotally disposed on the front surface of the box 110, and may be opened in a drawer manner to achieve a drawer-type storage space, where the drawer-type storage space is often provided with a metal slide rail, so as to ensure a soft effect during opening and closing of the drawer, and reduce noise. The door opening manner of the first space of the air-cooled refrigerator 100 of the present embodiment is pivoting opening, and the door opening manner of the second space and the third space is drawer opening.

The air-cooled refrigerator 100 may be provided with the sealed container 130 in the storage space, and the inside may define a fresh-keeping space to store food materials such as fruits and vegetables having a high fresh-keeping requirement. In a preferred embodiment, the sealed container 130 may be disposed in a refrigerating space of the air-cooled refrigerator 100, because the temperature range of the refrigerating space is more matched with the fresh-keeping requirement of the food materials. In some alternative embodiments, the sealed container 130 may be a sealed box, a sealed can, a sealed box, or the like. In a preferred embodiment, the sealed container 130 may be a sealed drawer.

As shown in fig. 2, the interior of the hermetic container 130 may be provided with a humidifying device 131, and a side wall of the hermetic container 130 may be provided with a controlled opening and closing air blowing port 132. In a preferred embodiment, the bottom wall of the sealed container 130 is a cold guiding plate 135, and the air blowing opening 132 may be configured to communicate with a cooling air path of the air-cooled refrigerator 100 when opened, so as to blow cold air to the cold guiding plate 135, and indirectly cool the sealed container 130 through the cold guiding plate 135. That is, the cold air blown out from the air blowing port 132 is directed toward the cooling plate 135, so that the humidity change caused by the direct blowing of the air into the sealed container 130 is avoided, and the accuracy of adjusting the humidity in the sealed container 130 is improved. Specifically, the cold conducting plate 135 may be made of metal. When humidification is required in the sealed container 130, the humidifying device 131 can be controlled to be opened, and humidification is realized by increasing the absolute water content; the air supply outlet 132 can also be controlled to be opened, and humidification is realized by cooling and reducing saturated water content.

In addition, a heating device 133 may be further provided inside the hermetic container 130, and a damper 134 controlled to open and close may be further provided on a sidewall of the hermetic container 130. The damper 134 may be configured to vent air from within the sealed container 130 to reduce humidity when the humidity within the sealed container 130 is too high. The air discharged through the damper 134 may be discharged to the storage space where the sealed space is located, for example, if the sealed container 130 is disposed in the refrigerating space, the air in the sealed container 130 may be discharged to the refrigerating space through the damper 134. In a specific embodiment, the heating device 133 may be a micro-heating wire. When dehumidification is needed in the sealed container 130, the damper 134 can be controlled to be opened, and dehumidification is realized by reducing the absolute water content; the heating device 133 can be controlled to be started, and dehumidification is realized by heating and increasing the saturated water content.

Fig. 2 is a partial structural view of the hermetic container 130 in the air-cooled refrigerator 100 according to an embodiment of the present invention. As mentioned above, the sealed container 130 may be a sealed drawer, and in fact, fig. 2 shows a partial structural schematic diagram of the sealed drawer. The seal drawer may include: a drawer cylinder having a forward opening and fixed to an inner container of the air-cooled refrigerator 100, and defining a fresh-keeping space therein; and a drawer body 137 slidably installed within the drawer cylinder to be operatively withdrawn outwardly and inserted inwardly from the forward opening of the drawer cylinder. The inner container and the drawer cylinder can be integrally formed, and can also be formed independently and then installed. Fig. 2 shows a schematic view of the drawer body 137.

As shown in fig. 2, when the sealed container 130 is a sealed drawer, the humidifying device 131, the air blowing port 132, and the air door 134 may be provided on a rear wall of the drawer body 137. The heating device 133 may be disposed at a bottom wall of the drawer body 137, and the bottom wall of the drawer body 137 may be the cold guide plate 135. In addition, a temperature and humidity sensor 136 may be further provided on a rear wall of the drawer body 137 to detect temperature and humidity inside the hermetic container 130. It should be noted that the humidity detected by the temperature and humidity sensor 136 is a relative humidity, i.e. a quotient of an absolute water content and a saturated water content, where the saturated water content is proportional to the temperature value in the sealed container 130, i.e. the higher the temperature value is, the larger the saturated water content is.

The air-cooled refrigerator 100 may further include a control device 200, and fig. 3 is a block diagram illustrating the control device 200 of the air-cooled refrigerator 100 according to an embodiment of the present invention. The control device 200 includes a processor 210 and a memory 220, wherein the memory 220 stores a control program 221, and the control program 221 is used for implementing the control method of the air-cooled refrigerator according to any one of the following embodiments when executed by the processor 210.

The embodiment also provides a control method of the air-cooled refrigerator, and fig. 4 is a schematic diagram of the control method of the air-cooled refrigerator according to one embodiment of the invention. The control method of the air-cooled refrigerator can be implemented by using the air-cooled refrigerator 100 of any of the embodiments. As shown in fig. 4, the control method of the air-cooled refrigerator sequentially executes the following steps:

step S402, acquiring an actual temperature value and an actual humidity value inside the sealed container 130, and calculating absolute water content according to the actual temperature value and the actual humidity value;

step S404, obtaining a target humidity value inside the sealed container 130, and calculating a target temperature value according to the absolute water content and the target humidity value;

step S406, judging whether the sealed container 130 needs to be humidified according to the actual humidity value, if so, executing step S408;

in step S408, the humidification device 131 or the air supply port 132 is controlled to be opened according to the target temperature value.

In the above step, the actual humidity value in step S402 is a relative value, and the step of calculating the absolute moisture content from the actual temperature value and the actual humidity value may include: matching the actual temperature values in a preset comparison table to obtain corresponding actual saturated water content; the product of the actual saturated moisture content and the actual humidity value is calculated as the absolute moisture content.

In step S404, a target humidity value inside the sealed container 130 is obtained, and the target humidity value may be determined by obtaining a setting operation of a user, for example, the user may directly set the target humidity value through a key or a display of the air-cooled refrigerator 100; it is also possible to automatically determine a humidity value suitable for storage as the target humidity value by the kind of food material in the sealed container 130. And, the step of calculating the target temperature value based on the absolute water content and the target humidity value may include: calculating a quotient of the absolute water content and the target humidity value as a target saturated water content; and matching in the comparison table according to the target saturated water content to obtain a corresponding target temperature value.

As mentioned above, the actual moisture value is a relative moisture value, which is the quotient of the absolute moisture content and the saturated moisture content. Thus, when the actual saturated moisture content and the actual humidity value are known, the product of the actual saturated moisture content and the actual humidity value may be calculated as the absolute moisture content. The target humidity value is a value that the actual humidity value in the sealed container 130 is targeted to reach, and is also a relative humidity value. Therefore, when the absolute moisture content and the target humidity value are known, the quotient of the absolute moisture content and the target humidity value can be calculated as the target saturated moisture content.

It should be noted that, the corresponding relationship between different temperature values and saturated water content may be stored in advance in the comparison table. Therefore, the corresponding actual saturated water content can be obtained by matching in the comparison table according to the actual temperature value; and the corresponding target temperature value can also be obtained by matching in the comparison table according to the target saturated water content. Wherein the saturated water content is proportional to the temperature value in the sealed container 130, i.e. the higher the temperature value, the larger the saturated water content.

The specific step of determining whether the sealed container 130 needs to be humidified according to the actual humidity value in step S406 may include: acquiring a preset humidity range of the sealed container 130; and judging whether the actual humidity value is smaller than the minimum value in the preset humidity range. And, when the result is yes, it may be determined that the hermetic container 130 needs humidification. The preset humidity range may be a humidity range suitable for storing food materials in the sealed container 130, and therefore when the actual humidity value is smaller than the minimum value in the preset humidity range, it may be determined that the humidity in the sealed space is too low and is not suitable for fresh-keeping food materials, and humidification is required.

After determining that the sealed container 130 needs humidification, step S408 is performed to control the humidification device 131 or the air supply opening 132 to be opened according to the target temperature value. Wherein, the humidifying device 131 is controlled to be opened, and the humidification is realized by increasing the absolute water content; the control supply-air outlet 132 is opened, and humidification is realized through cooling and reduction of saturated water content. Specifically, the method may further include, while acquiring the preset humidity range of the sealed container 130: a preset temperature range of the sealed container 130 is obtained, and the preset temperature range may be consistent with an adjustable temperature range of the storage space where the sealed container 130 is located, for example, if the sealed container 130 is disposed in the refrigerating space, the preset temperature range may be 3 ℃ to 10 ℃.

As to which way humidification is performed, the following steps may be performed: judging whether the target temperature value is smaller than the minimum value in a preset temperature range or not; and if so, controlling the humidifying device 131 to be opened until the inside of the sealed container 130 reaches a target humidity value, otherwise, controlling the air supply outlet 132 to be opened until the inside of the sealed container 130 reaches a target temperature value. That is to say, when target temperature value is less than the minimum in the predetermined temperature range, if carry out the humidification through the mode of cooling, can make the temperature value in the sealed container 130 cross lowly, influence the fresh-keeping effect in the sealed space, influence outside storing space's suitable storing temperature even, consequently control humidification device 131 and open, until the inside target humidity value that reaches of sealed container 130, realize the humidification through increasing absolute water content.

When the target temperature value is greater than or equal to the minimum value in the preset temperature range, the humidification can be realized by cooling and reducing the saturated water content, so that the air supply outlet 132 can be controlled to be opened until the target temperature value is reached inside the sealed container 130. It should be emphasized that the air blowing opening 132 communicates with the cooling air path of the air-cooled refrigerator 100 when opened, so as to blow cold air to the cold guide plate 135 at the bottom of the sealed container 130, and indirectly refrigerate the sealed container 130 through the cold guide plate 135. That is, the cold air blown from the air blowing port 132 is directed toward the cold guiding plate 135, so that the humidity change caused by the direct blowing of the air into the sealed container 130 is avoided, and the humidity adjustment accuracy in the sealed container 130 is improved.

According to the control method of the air-cooled refrigerator, after humidification is determined, the specific humidification mode is determined according to the target temperature value, the temperature of the sealed container 130 cannot meet the storage requirement while humidification is avoided, the temperature and humidity inside the sealed container 130 are considered, and the fresh-keeping effect of food materials is improved.

In some optional embodiments, the air-cooled refrigerator 100 may achieve a higher technical effect by further optimizing and configuring the above steps, and the following describes in detail the control method of the air-cooled refrigerator of this embodiment in combination with a description of an optional execution flow of this embodiment, where this embodiment is merely an illustration of the execution flow, and in a specific implementation, an execution sequence and an operation condition of a part of steps may be modified according to specific implementation requirements. Fig. 5 is a detailed flowchart of a control method of an air-cooled refrigerator according to an embodiment of the present invention. The control method of the air-cooled refrigerator comprises the following steps:

step S502, acquiring an actual temperature value and an actual humidity value inside the sealed container 130;

step S504, matching the actual temperature value in a preset comparison table to obtain the corresponding actual saturated water content;

step S506, calculating the product of the actual saturated water content and the actual humidity value as an absolute water content;

step S508, obtaining a target humidity value inside the sealed container 130;

step S510, calculating a quotient of the absolute water content and the target humidity value as a target saturated water content;

step S512, matching in a comparison table according to the target saturated water content to obtain a corresponding target temperature value;

step S514, acquiring a preset humidity range and a preset temperature range of the sealed container 130;

step S516, determining whether the actual humidity value is smaller than the minimum value in the preset humidity range, if so, performing step S518, and if not, performing step S526;

step S518, determining that the sealed container 130 needs humidification;

step S520, determining whether the target temperature value is smaller than a minimum value in the preset temperature range, if so, performing step S522, and if not, performing step S524;

step S522, controlling the humidifying device 131 to be turned on until the inside of the sealed container 130 reaches a target humidity value;

step S524, controlling the opening of the air supply outlet 132 until the interior of the sealed container 130 reaches a target temperature value;

step S526, determining whether the actual humidity value is greater than the maximum value in the preset humidity range, if so, performing step S528, otherwise, performing step S536;

step S528, determining that the sealed container 130 needs to be dehumidified;

step S530, determining whether the target temperature value is greater than a maximum value in a preset temperature range, if so, performing step S532, and if not, performing step S534;

step S532, controlling the damper 134 to open until the inside of the sealed container 130 reaches a target humidity value;

step S534, controlling the heating device 133 to start until the inside of the sealed container 130 reaches the target temperature value;

in step S536, it is determined that the actual humidity value is within the preset humidity range, and the sealed container 130 does not need to be humidified or dehumidified.

In the above steps, the preset humidity range and the preset temperature range of the sealed container 130 are obtained in step S514, wherein the preset humidity range and the preset temperature range are suitable for storing and preserving the food materials. Therefore, when it is determined whether the actual humidity value is greater than the maximum value of the preset humidity range in step S526, the step S536 is performed to determine that the actual humidity value is within the preset humidity range, which is suitable for storing and fresh-keeping the food materials, and the sealed container 130 does not need to be humidified or dehumidified.

Since the above embodiment describes the humidification in detail, the steps related to the dehumidification are described here: in step S526, it is determined whether the actual humidity value is greater than the maximum value in the preset humidity range, and if so, it indicates that the humidity in the sealed container 130 is too high, which is likely to form condensation and is not suitable for storing fresh-keeping food materials, so step S528 is executed to determine that the sealed container 130 needs to be dehumidified. At this time, step S530 is executed, it is determined whether the target temperature value is greater than the maximum value in the preset temperature range, when the result is yes, that is, when the target temperature value is greater than the maximum value in the preset temperature range, the temperature in the sealed container 130 is too high through temperature rise and dehumidification, and the sealed container 130 is not suitable for storing and fresh-keeping food materials, and even the storage effect of the storage space where the sealed container 130 is located may be affected, so step S532 is executed, the air door 134 is controlled to be opened until the target humidity value is reached inside the sealed container 130, and dehumidification is realized by reducing the absolute water content. If the result is negative, that is, the target temperature value is less than or equal to the maximum value in the preset temperature range, dehumidification may be achieved by heating and increasing the saturated water content, so step S534 may be executed to control the heating device 133 to be turned on until the inside of the sealed container 130 reaches the target temperature value.

In the control method of the air-cooled refrigerator of the present embodiment, the bottom wall of the sealed container 130 is the cold guide plate 135, and the air supply opening 132 is configured to communicate with the cooling air path of the air-cooled refrigerator 100 when opened, so as to blow cold air to the cold guide plate 135, and indirectly cool the sealed container 130 through the cold guide plate 135, thereby preventing humidity change caused by directly blowing air into the sealed container 130. When humidification is needed, if the target temperature value is smaller than the minimum value in the preset temperature range, the humidification device 131 is controlled to be started, and humidification is achieved by increasing the absolute water content; if the target temperature value is greater than or equal to the minimum value in the preset temperature range, the air supply outlet 132 is controlled to be opened, and humidification is realized by cooling and reducing the saturated water content. When dehumidification is needed, if the target temperature value is larger than the maximum value in the preset temperature range, the air door 134 is controlled to be opened, and dehumidification is achieved by reducing the absolute water content; if the target temperature value is less than or equal to the maximum value in the preset temperature range, the heating device 133 is controlled to be started, and dehumidification is realized by heating and increasing the saturated water content. Mode scientific and reasonable of regulating temperature and humidity promotes the storing condition, effectively promotes the regulation precision of the temperature in the sealed container 130 and humidity, promotes user's use and experiences.

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

Claims

1. A control method of an air-cooled refrigerator is provided, wherein a sealed container is arranged inside the air-cooled refrigerator, a humidifying device is arranged inside the sealed container, an air supply opening controlled to be opened and closed is arranged on the side wall of the sealed container, and the control method of the air-cooled refrigerator comprises the following steps:

acquiring an actual temperature value and an actual humidity value in the sealed container, and calculating an absolute water content according to the actual temperature value and the actual humidity value;

acquiring a target humidity value in the sealed container, and calculating a target temperature value according to the absolute water content and the target humidity value;

judging whether the sealed container needs to be humidified or not according to the actual humidity value; and

if yes, controlling the humidifying device or the air supply outlet to be opened according to the target temperature value,

wherein the step of determining whether the sealed container needs humidification based on the actual humidity value comprises: acquiring a preset humidity range of the sealed container; judging whether the actual humidity value is smaller than the minimum value in the preset humidity range or not; if yes, determining that the sealed container needs to be humidified;

the method comprises the following steps of obtaining a preset humidity range of the sealed container: the step of obtaining the preset temperature range of the sealed container and controlling the humidifying device or the opening of the air supply outlet according to the target temperature value comprises the following steps: judging whether the target temperature value is smaller than the minimum value in the preset temperature range or not; and if the humidity value reaches the target humidity value, controlling the humidifying device to be started until the inside of the sealed container reaches the target humidity value, and if the humidity value does not reach the target humidity value, controlling the air supply outlet to be started until the inside of the sealed container reaches the target temperature value.

2. The control method of an air-cooled refrigerator according to claim 1,

and when the actual humidity value is larger than the maximum value in the preset humidity range, determining that the sealed container needs to be dehumidified.

3. The method for controlling an air-cooled refrigerator according to claim 2, wherein the sealed container is further provided with a heating device inside, the side wall of the sealed container is further provided with a damper controlled to open and close, the damper is configured to discharge air in the sealed container, and after the step of determining that the sealed container needs to be dehumidified, the method further comprises:

and controlling the heating device or the air door to be opened according to the target temperature value.

4. The control method of the air-cooled refrigerator according to claim 3, wherein the step of controlling the heating means or the damper to be opened according to the target temperature value includes:

judging whether the target temperature value is larger than the maximum value in the preset temperature range or not; and

if yes, controlling the air door to open until the interior of the sealed container reaches the target humidity value,

if not, controlling the heating device to be started until the inside of the sealed container reaches the target temperature value.

5. The method for controlling an air-cooled refrigerator according to claim 1, wherein the step of calculating an absolute water content from the actual temperature value and the actual humidity value includes:

matching in a preset comparison table according to the actual temperature value to obtain the corresponding actual saturated water content; and

and calculating the product of the actual saturated water content and the actual humidity value as the absolute water content.

6. The method of controlling an air-cooled refrigerator according to claim 5, wherein the step of calculating a target temperature value based on the absolute water content and the target humidity value includes:

calculating a quotient of the absolute water content and the target humidity value as a target saturated water content; and

and matching in the comparison table according to the target saturated water content to obtain the corresponding target temperature value.

7. The control method of an air-cooled refrigerator according to claim 1,

the bottom wall of the sealed container is a cold guide plate, and the air supply outlet is configured to be communicated with a refrigeration air path of the air-cooled refrigerator when being opened so as to blow cold air to the cold guide plate, and the sealed container is indirectly refrigerated through the cold guide plate.

8. An air-cooled refrigerator comprising a control device including a processor and a memory, wherein the memory stores a control program, and the control program is executed by the processor to implement the control method of the air-cooled refrigerator according to any one of claims 1 to 7.