WO2023040407A1

WO2023040407A1 - Refrigerator and control method therefor

Info

Publication number: WO2023040407A1
Application number: PCT/CN2022/101617
Authority: WO
Inventors: 苗建林; 费斌; 滕昭波; 孙永升; 李春阳
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2021-09-18
Filing date: 2022-06-27
Publication date: 2023-03-23
Also published as: CN115839598A

Abstract

A refrigerator and a control method therefor. The refrigerator comprises a storage compartment and a heating air duct used for introducing a heating airflow into the storage compartment, wherein an electrolytic deoxygenation apparatus is provided in the heating air duct and used for consuming oxygen in the storage compartment by means of an electrochemical reaction and providing heat to the heating air duct. Moreover, the control method comprises: obtaining internal environment parameters of the storage compartment of the refrigerator; and determining the working state of the electrolytic deoxygenation apparatus and the connected/disconnected state of the heating air duct according to the internal environment parameters of the storage compartment. According to the control method, the temperature adjustment means of the refrigerator can be optimized, so that the temperature of the storage compartment can be rapidly increased by means of the heat provided by the electrolytic deoxygenation apparatus, thereby meeting the usage requirements of users.

Description

Refrigerator and its control method

technical field

The present invention relates to refrigeration, in particular to a refrigerator and a control method thereof.

Background technique

The refrigerator has a low-temperature storage function, and the refrigeration system can be used to adjust the temperature of the storage space. For example, when the temperature of the storage space is high, the refrigerator can lower the temperature of the storage space by activating the refrigeration system.

However, the inventors realized that the refrigerators in the prior art generally only have the effect of reducing the temperature of the storage space when the refrigeration system is activated, and the temperature adjustment means are relatively simple. If the user wants to properly increase the temperature of the storage space, the storage space can only be heated up naturally when the refrigeration system is shut down, which will result in a slow temperature adjustment process and reduce user experience.

Contents of the invention

An object of the present invention is to overcome at least one technical defect in the prior art, and provide a refrigerator and a control method thereof.

A further object of the present invention is to optimize the temperature adjustment means of the refrigerator, so that it can quickly increase the temperature of the storage compartment, so as to meet the needs of users.

A further object of the present invention is to use the heat generated by the electrochemical reaction of the electrolytic oxygen removal device of the refrigerator to adjust the temperature of the storage compartment, so as to realize the functional reuse of the electrolytic oxygen removal device.

A still further object of the present invention is to flexibly adjust the temperature of the storage compartment.

According to one aspect of the present invention, a method for controlling a refrigerator is provided. The refrigerator has a storage compartment and a heating air passage for passing a heating air flow into the storage compartment, wherein an electrolytic deoxygenation device is arranged in the heating air passage , used for consuming oxygen inside the storage compartment through an electrochemical reaction and providing heat to the heating air duct, and the control method includes: obtaining the internal environmental parameters of the storage compartment of the refrigerator; determining according to the internal environmental parameters of the storage compartment The working state of the electrolytic oxygen removal device and the on-off state of the heating air duct.

Optionally, in the step of acquiring the internal environmental parameters of the storage compartment of the refrigerator, the internal environmental parameters of the storage compartment include the temperature and/or oxygen concentration of the storage compartment.

Optionally, the step of determining the working state of the electrolytic oxygen removal device and the on-off state of the heating air duct according to the temperature of the storage compartment includes: obtaining the set temperature of the storage compartment; Whether the difference between the fixed temperatures is less than the preset first threshold; if so, start the electrolytic deoxygenation device and communicate with the heating air duct, so as to use the heat provided by the electrolytic deoxygenation device to increase the temperature of the storage compartment.

Optionally, the step of determining the working state of the electrolytic oxygen removal device and the on-off state of the heating air duct according to the temperature and oxygen concentration of the storage compartment includes: obtaining the set temperature and the set oxygen concentration of the storage compartment; judging Whether the difference between the temperature of the storage compartment and the set temperature is less than the preset first threshold and the oxygen concentration of the storage compartment is higher than the set oxygen concentration; if so, start the electrolytic oxygen removal device and connect the heating air Road and consumption of oxygen concentration in the storage compartment.

Optionally, the step of determining the working state of the electrolytic deoxygenation device and the on-off state of the heating air duct according to the temperature and oxygen concentration of the storage compartment further includes: if the difference between the temperature of the storage compartment and the set temperature value is greater than or equal to the preset first threshold and the oxygen concentration in the storage compartment is higher than the set oxygen concentration, then start the electrolytic deoxygenation device and turn off the heating air duct, so as to use the electrolytic deoxygenation device to consume the oxygen in the storage compartment. oxygen.

Optionally, after starting the electrolytic deoxygenation device and connecting the heating air duct, it also includes: obtaining the set running time of the electrolytic deoxygenation device; judging whether the running time of the electrolytic deoxygenation device reaches the set running time; if so, shutting down Electrode oxygen device, and delay to shut down the heating air duct.

Optionally, the refrigerator also has a refrigerating air channel for introducing refrigerating airflow into the storage compartment, and an evaporator is arranged in the refrigerating air channel for providing cooling capacity to the refrigerating air channel; and the control method further includes: The internal environmental parameters of the storage room determine the working state of the evaporator and the on-off state of the cooling air duct.

Optionally, the step of determining the working state of the evaporator and the on-off state of the cooling air duct according to the temperature of the storage compartment includes: obtaining the set temperature of the storage compartment; judging the temperature of the storage compartment and the set temperature Whether the difference between them is greater than or equal to the preset second threshold; if yes, the evaporator is activated and the cooling air passage is connected, so as to reduce the temperature of the storage compartment by using the cooling capacity provided by the evaporator.

Optionally, after the evaporator is started and the cooling air duct is connected, it also includes: detecting the temperature of the storage compartment, and when the temperature of the storage compartment reaches the set temperature, closing the evaporator and delaying the shutdown of the refrigeration air duct.

According to another aspect of the present invention, a refrigerator is also provided, including: a box body, a storage compartment and a heating air duct for introducing a heating air flow into the storage compartment are formed inside; an electrolytic deoxidizer , set in the heating air duct; a processor and a memory, a machine executable program is stored in the memory, and when the machine executable program is executed by the processor, it is used to realize the control method according to any one of the above.

In the refrigerator and its control method of the present invention, by arranging a heating air passage in the refrigerator for introducing a heating air flow into the storage compartment, an electrolytic deoxidizer is arranged in the heating air passage, and according to the internal environment of the storage compartment The parameters determine the working state of the electrolytic deoxygenation device and the on-off state of the heating air duct, which can optimize the temperature adjustment method of the refrigerator, so that it can rely on the heat provided by the electrolytic deoxygenation device to quickly increase the temperature of the storage room, so as to meet the needs of users. Usage requirements.

Furthermore, in the refrigerator and its control method of the present invention, since the electrolytic oxygen removal device is arranged in the heating air duct and can provide heat to the heating air duct, the electrolytic oxygen removal device can detoxify the storage compartment through an electrochemical reaction. Oxygen can also adjust the temperature of the storage compartment through the electrochemical reaction, realizing the functional reuse of the electrolytic deoxygenation device, and at the same time allowing the refrigerator to adjust the temperature of the storage compartment while deoxygenating.

Furthermore, in the refrigerator and its control method of the present invention, by arranging the heating air duct and the cooling air duct in the refrigerator, and respectively arranging the electrolytic deoxidizer and the evaporator in the heating air duct and the cooling air duct, the storage compartment can The internal environmental parameters determine the working state of the electrolytic oxygen removal device, the on-off state of the heating air duct, the operating state of the evaporator, and the on-off state of the cooling air duct, which enables the refrigerator of the present invention to flexibly adjust the storage compartment. Temperature has the advantages of simplified structure and simple control process.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

FIG. 1 is a schematic block diagram of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of a method for controlling a refrigerator according to an embodiment of the present invention;

Fig. 3 is a control flowchart of a refrigerator according to an embodiment of the present invention;

FIG. 4 is a control flowchart of a refrigerator according to another embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a refrigerator according to another embodiment of the present invention.

Detailed ways

FIG. 1 is a schematic block diagram of a refrigerator 10 according to one embodiment of the present invention.

The refrigerator 10 may generally include a cabinet 200 , an electro-deoxidizer 500 , a processor 110 and a storage 120 .

A storage compartment 210 and a heating air passage 222 for passing a heating airflow into the storage compartment 210 are formed inside the box body 200 . The heating airflow refers to the airflow with a higher temperature and used to increase the temperature of the storage compartment 210 . The heating air channel 222 can communicate with the air outlet 211 of the storage compartment 210 , so that the heating air can enter the storage compartment 210 through the air outlet 211 .

An electrolytic deoxygenation device 500 is disposed in the heating air passage 222 , that is, the electrolytic deoxygenation device 500 is disposed in the heating air passage 222 . The electrolytic deoxygenation device 500 is used for consuming oxygen in the storage compartment 210 through an electrochemical reaction and providing heat to the heating air duct 222 . That is to say, the electrolytic deoxygenation device 500 can consume the oxygen inside the storage compartment 210 on the one hand, and can provide heat to the heating air duct 222 on the other hand. The electrolytic deoxygenation device 500 can generate heat during the electrochemical reaction, so it can be used as a heat source for the heating air duct 222 . Electrolytic deoxygenation device 500 may generally include an anode plate and a cathode plate. For example, oxygen in the air can undergo a reduction reaction at the cathode plate, namely: O ₂ +2H ₂ O+4e ⁻ →4OH ⁻ . The OH ^- produced by the cathode plate can undergo oxidation reaction at the anode plate and generate oxygen, namely: 4OH ^- → O ₂ +2H ₂ O + 4e ^- .

The processor 110 and the memory 120 may form a control device of the refrigerator 10 , and the control device may be disposed in the cabinet 200 . The memory 120 stores a machine-executable program 121 , and the machine-executable program 121 is used to implement the control method of any of the following embodiments when executed by the processor 110 . The processor 110 may be a central processing unit (CPU), or a digital processing unit (DSP) and so on. The memory 120 is used to store programs executed by the processor 110 . The memory 120 may be any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory 120 may also be a combination of various memories. Since the machine-executable program 121 is executed by the processor 110 to implement each process of the following method embodiments and achieve the same technical effect, to avoid repetition, details are not repeated here.

Fig. 2 is a schematic diagram of a control method of the refrigerator 10 according to an embodiment of the present invention. The control method may generally include the following steps:

Step S202, acquiring internal environment parameters of the storage compartment 210 of the refrigerator 10, such as at least one of parameters such as temperature, oxygen concentration, and humidity of the storage compartment 210.

Step S204 , according to the internal environment parameters of the storage compartment 210 , the working state of the electrolytic deoxygenation device 500 and the on-off state of the heating air duct 222 are determined. The working state of the electrolytic deoxygenation device 500 includes a starting state and a closing state. The on-off state of the heating air passage 222 includes a connected state and an off state. When the heating air passage 222 is connected, the airflow path between it and the storage compartment 210 is connected. When the heating air passage 222 is turned off, it is connected to the The airflow path between the storage compartments 210 is shut off.

In the refrigerator 10 and the control method thereof in this embodiment, the heating air passage 222 for introducing the heating air flow into the storage compartment 210 is arranged in the refrigerator 10, and the electrolytic deoxidizer 500 is arranged in the heating air passage 222, and According to the internal environmental parameters of the storage compartment 210, the working state of the electrolytic deoxygenation device 500 and the on-off state of the heating air duct 222 can be determined to optimize the temperature adjustment means of the refrigerator 10 so that it can rely on the heat provided by the electrolytic deoxidation device 500 Rapidly increase the temperature of the storage compartment 210 to meet the needs of users.

Since the electrolytic oxygen removal device 500 is arranged in the heating air duct 222 and can provide heat to the heating air duct 222, the electrolytic oxygen removal device 500 can not only deoxidize the storage compartment 210 through electrochemical reaction, but also can The chemical reaction adjusts the temperature of the storage compartment 210 , realizes the functional reuse of the electrolytic deoxygenation device 500 , and enables the refrigerator 10 to adjust the temperature of the storage compartment 210 while deoxygenating.

In the above step S202 , the internal environment parameters of the storage compartment 210 may include the temperature and/or oxygen concentration of the storage compartment 210 . In some embodiments, the refrigerator 10 may further include a temperature sensor 900 and/or an oxygen concentration sensor disposed in the storage compartment 210, wherein the temperature sensor 900 is used to detect the temperature inside the storage compartment 210, the oxygen concentration The sensor is used to detect the oxygen concentration inside the storage compartment 210 .

In some embodiments, the internal environmental parameters of the storage compartment 210 include the temperature of the storage compartment 210 . In the above step S204, the step of determining the working state of the electrolytic oxygen removal device 500 and the on-off state of the heating air duct 222 according to the temperature of the storage room 210 includes: obtaining the set temperature of the storage room 210, and determining the temperature of the storage room. Whether the difference between the temperature of the chamber 210 and the set temperature is less than the preset first threshold value, if so, start the electrolytic oxygen removal device 500 and communicate with the heating air duct 222, so as to use the heat provided by the electrolytic oxygen removal device 500 to increase the storage capacity. The temperature of the object room 210.

The set temperature of the storage compartment 210 refers to the fresh-keeping temperature that the storage compartment 210 will reach, which can be set by the user according to the fresh-keeping requirements of the items. When the difference between the temperature of the storage compartment 210 and the set temperature is less than the preset first threshold value, it indicates that the temperature of the storage compartment 210 is too low. Chamber 210 provides heat. The first threshold can be set by the user according to the expected temperature adjustment effect, and can be any value less than zero, for example, it can be -2˜-5°C.

When the electro-deoxygenation device 500 is started and connected to the heating air duct 222, the heat generated by the electrochemical reaction of the electro-deoxygenation device 500 can enter the storage compartment 210 through the heating air duct 222, thereby increasing the temperature of the storage compartment 210. temperature. Because the electrolytic deoxygenation device 500 also consumes the oxygen in the storage compartment 210 during the electrochemical reaction, therefore, while increasing the temperature of the storage compartment 210, the electrolytic deoxygenation device 500 can further reduce the temperature of the storage compartment. Oxygen concentration in the storage compartment 210, which can maintain a good low-oxygen fresh-keeping atmosphere in the storage compartment 210.

In some optional embodiments, the internal environment parameters of the storage compartment 210 include the temperature of the storage compartment 210 and the oxygen concentration inside the storage compartment 210 . The steps of determining the working state of the electrolytic deoxygenation device 500 and the on-off state of the heating air duct 222 according to the temperature and oxygen concentration of the storage compartment 210 include: obtaining the set temperature and the set oxygen concentration of the storage compartment 210, and judging Whether the difference between the temperature of the storage compartment 210 and the set temperature is less than a preset first threshold and the oxygen concentration of the storage compartment 210 is higher than the set oxygen concentration, if so, start the electrolytic deoxygenation device 500 and The heating air duct 222 is connected to increase the temperature of the storage compartment 210 and consume the oxygen concentration of the storage compartment 210 by utilizing the heat provided by the electrolytic deoxygenation device 500 .

When the oxygen concentration in the storage compartment 210 is higher than the set oxygen concentration, it indicates that the oxygen concentration inside the storage compartment 210 is too high, and it is necessary to use the electrolytic deoxygenation device 500 to reduce the oxygen concentration inside the storage compartment 210 . The set oxygen concentration can be set according to the actual preservation requirements of the items stored in the storage compartment 210 . Since the electrolytic deoxygenation device 500 not only consumes the oxygen in the storage compartment 210 but also releases heat during the electrochemical reaction, when the temperature of the storage compartment 210 is too low and the oxygen concentration is too high, the electrolytic deoxygenation device 500 will The oxygen device 500 is connected to the heating air duct 222, which can meet the oxygen reduction and temperature rise requirements of the storage compartment 210 at the same time, killing two birds with one stone.

In some further embodiments, when judging whether the difference between the temperature of the storage compartment 210 and the set temperature is less than a preset first threshold and the oxygen concentration of the storage compartment 210 is higher than the set oxygen concentration After the step, the step of determining the working state of the electrolytic oxygen removal device 500 and the on-off state of the heating air duct 222 according to the temperature and oxygen concentration of the storage compartment 210 may further include: if the temperature of the storage compartment 210 is consistent with the setting If the difference between the temperatures is greater than or equal to the preset first threshold and the oxygen concentration in the storage compartment 210 is higher than the set oxygen concentration, then the electro-deoxygenation device 500 is activated and the heating air duct 222 is turned off to utilize electro-deoxidation The device 500 consumes oxygen inside the storage compartment 210 .

When the difference between the temperature of the storage compartment 210 and the set temperature is greater than or equal to the preset first threshold, it indicates that the temperature of the storage compartment 210 is not low, and it is not necessary to use the electrolytic The object compartment 210 provides heat.

When the electro-deoxygenation device 500 is started and the heating air duct 222 is turned off, although the electro-deoxygenation device 500 can utilize the electrochemical reaction to consume the oxygen in the storage compartment 210, the heat generated cannot enter the storage through the heating air duct 222. The compartment 210 will not lead to a higher temperature of the storage compartment 210 , which can reduce or avoid the adverse effect of the heat released by the electrolytic deoxygenation device 500 on the temperature of the storage compartment 210 .

In some optional embodiments, after the electrolytic deoxygenation device 500 is started and the heating air duct 222 is connected, the control method may further include: obtaining the set running time of the electrolytic deoxygenation device 500 , and judging whether the electrolytic deoxygenation device 500 Whether the running time reaches the set running time, if so, turn off the electrolytic deoxygenation device 500, and turn off the heating air duct 222 after a delay. For example, the heating air duct 222 may be turned off after the electrolytic deoxygenation device 500 is turned off for 10-30 minutes.

Since the heat of the electrolytic deoxygenation device 500 will not be dissipated immediately after it is turned off, the heating air duct 222 will still deliver heat to the storage compartment 210 before it is turned off. By delaying the shutdown of the heating air duct 222, the heat generated by the electrolytic deoxidizer 500 during operation can be fully utilized.

The set operating time can be determined according to the start-up conditions of the electrolytic deoxygenation device 500 . For example, the starting condition of the electrolytic deoxygenation device 500 is only when the difference between the temperature of the storage compartment 210 and the set temperature is less than the preset first threshold, or the starting condition of the electrolytic deoxygenation device 500 is storage When the difference between the temperature of the storage compartment 210 and the set temperature is less than the preset first threshold and the oxygen concentration of the storage compartment 210 is higher than the set oxygen concentration, the set running time can be set according to the storage compartment 210 Calculate the difference between the temperature and the set temperature, the greater the difference, the greater the value of the set running time. When the start-up condition of the electrolytic deoxygenation device 500 is only when the oxygen concentration in the storage compartment 210 is higher than the set oxygen concentration, the set running time can be calculated according to the difference between the oxygen concentration and the set oxygen concentration, and The larger the difference, the larger the value of the set running time.

In some embodiments, the set operating time of the electrolytic deoxygenation device 500 may be a fixed value ranging from 10 to 60 minutes, for example, 30 minutes. When the storage compartment 210 has not been opened for a long time, if the running time of the electrolytic deoxygenation device 500 reaches the set running time, the oxygen concentration inside the storage compartment 210 can drop below the set oxygen concentration, and the stored items The temperature of the compartment 210 may be raised to a set temperature. In other embodiments, the shutdown conditions of the electrolytic deoxygenation device 500 may be varied. For example, after obtaining the set operating time of the electrolytic oxygen deoxidizer 500, the control method may further include: obtaining the door opening and closing records of the refrigerator 10, and judging whether a door opening event occurs within the set time period according to the door opening and closing records, and if so, then according to The door opening and closing times adjust the set running time, for example, the set running time can be extended, and the electrolytic deoxidizer 500 can be controlled according to the adjusted set running time.

In some optional embodiments, the refrigerator 10 also has a cooling air duct 221 for introducing cooling air into the storage compartment 210 . The refrigerated airflow refers to the airflow with a lower temperature and used to lower the temperature of the storage compartment 210 . The cooling air channel 221 can communicate with the air supply port 211 of the storage compartment 210 , so that the cooling air can enter the storage compartment 210 through the air supply port 211 .

An evaporator 800 is disposed in the cooling air channel 221 for providing cooling capacity to the cooling air channel 221 . The surface temperature of the evaporator 800 is relatively low when it starts to operate, and it can exchange heat with the surrounding air, so it can be used as a cooling source for the cooling air duct 221 .

After the step of determining the working state of the electrolytic oxygen removal device 500 and the on-off state of the heating air duct 222, the control method may further include: determining the working state of the evaporator 800 and the cooling The on-off state of the air duct 221. The working state of the evaporator 800 includes an on state and an off state. The on-off state of the cooling air passage 221 includes a connected state and an off state. When the cooling air passage 221 is connected, the airflow path between it and the storage compartment 210 is connected. When the cooling air passage 221 is turned off, it is connected to the The airflow path between the storage compartments 210 is shut off.

In the refrigerator 10 of this embodiment, by arranging the heating air duct 222 and the cooling air duct 221 in the refrigerator 10, and respectively arranging the electrolytic deoxidizer 500 and the evaporator 800 in the heating air duct 222 and the cooling air duct 221, it can The internal environmental parameters of the compartment 210 determine the working state of the electrolytic deoxidizer 500, the on-off state of the heating air duct 222, the operating state of the evaporator 800, and the on-off state of the cooling air duct 221, which makes the refrigerator 10 of this embodiment The temperature of the storage compartment 210 can be flexibly adjusted, and has the advantages of a simplified structure and a simple control process.

In some optional embodiments, the step of determining the working state of the evaporator 800 and the on-off state of the cooling air duct 221 according to the temperature of the storage compartment 210 includes: acquiring the set temperature of the storage compartment 210, judging the Whether the difference between the temperature of the object room 210 and the set temperature is greater than or equal to the preset second threshold, if so, start the evaporator 800 and communicate with the cooling air duct 221, so as to use the cooling capacity provided by the evaporator 800 to reduce the storage capacity. The temperature of the object room 210.

When the difference between the temperature of the storage compartment 210 and the set temperature is greater than or equal to the preset second threshold value, it indicates that the temperature of the storage compartment 210 is too high. 210 provides cooling capacity. The second threshold can be set by the user according to the expected temperature adjustment effect, and can be any value greater than zero, for example, it can be 0-5°C. The second threshold may be greater than the first threshold. When the evaporator 800 is started and connected to the cooling air duct 221 , the cooling generated by the evaporator 800 during operation can enter the storage compartment 210 through the cooling air duct 221 , thereby reducing the temperature of the storage compartment 210 .

After starting the evaporator 800 and connecting the cooling air duct 221, the control method further includes: detecting the temperature of the storage compartment 210, and when the temperature of the storage compartment 210 reaches the set temperature, closing the evaporator 800, and delaying Turn off the cooling air duct 221. For example, the cooling air duct 221 may be closed after the evaporator 800 is closed for 10-30 minutes.

Since the cooling capacity of the evaporator 800 will not be lost immediately after the evaporator 800 is closed, the cooling air channel 221 will still deliver cooling capacity to the storage compartment 210 before it is closed. By delaying the shutdown of the cooling air duct 221, the cooling capacity produced by the evaporator 800 during operation can be fully utilized.

FIG. 3 is a control flowchart of the refrigerator 10 according to one embodiment of the present invention. The control process may generally include:

Step S302 , acquiring the temperature of the storage compartment 210 of the refrigerator 10 .

In step S304, the set temperature of the storage compartment 210 is acquired.

In step S306, it is judged whether the difference between the temperature of the storage compartment 210 and the set temperature is smaller than the preset first threshold, if yes, execute step S308, if not, execute step S316.

Step S308 , start the electrolytic deoxygenation device 500 and communicate with the heating air duct 222 , so as to increase the temperature of the storage compartment 210 by using the heat provided by the electrolytic deoxygenation device 500 .

In step S310, the set operating time of the electrolytic oxygen removal device 500 is acquired.

In step S312, it is judged whether the operating time of the electrolytic deoxygenation device 500 reaches the set operating time, if yes, execute step S314, and if not, execute step S312.

Step S314, shut down the electrolytic oxygen removal device 500, and shut down the heating air duct 222 after a delay.

In step S316, it is determined whether the difference between the temperature of the storage compartment 210 and the preset temperature is greater than or equal to the preset second threshold, if yes, execute step S318, if not, execute step S302.

Step S318 , start the evaporator 800 and communicate with the cooling air duct 221 , so as to lower the temperature of the storage compartment 210 by using the cooling provided by the evaporator 800 .

Step S320 , detecting the temperature of the storage compartment 210 .

In step S322, when the temperature of the storage compartment 210 reaches the set temperature, the evaporator 800 is turned off, and the cooling air duct 221 is turned off after a delay.

FIG. 4 is a control flowchart of the refrigerator 10 according to another embodiment of the present invention. The control process may generally include:

Step S402 , acquiring the temperature and oxygen concentration of the storage compartment 210 of the refrigerator 10 .

Step S404, acquiring the set temperature and set oxygen concentration of the storage compartment 210.

Step S406, determine whether the oxygen concentration of the storage compartment 210 is higher than the set oxygen concentration, if yes, execute step S408, if not, execute step S416.

Step S408, start the electrolytic deoxygenation device 500.

In step S410, it is determined whether the difference between the temperature of the storage compartment 210 and the preset temperature is smaller than a preset first threshold, if yes, execute step S412, and if not, execute step S414.

Step S412 , connecting the heating air duct 222 .

Step S414, when the difference between the temperature of the storage compartment 210 and the set temperature is greater than or equal to the preset second threshold, the evaporator 800 is activated and the cooling air duct 221 is connected.

Step S416 , when the difference between the temperature of the storage compartment 210 and the set temperature is smaller than the preset first threshold, start the electro-deoxygenation device 500 and communicate with the heating air duct 222 .

Fig. 5 is a schematic structural diagram of a refrigerator 10 according to an embodiment of the present invention. The refrigerator 10 of this embodiment may further include an air duct dividing device 300 and an air duct regulating device 600 .

The air duct separating device 300 is used to separate the heating air duct 222 and the cooling air duct 221 . The heating air duct 222 and the cooling air duct 221 of this embodiment may be located at the rear side of the storage compartment 210 . Wherein, directional words such as “front” and “rear” are relative to the actual use state of the refrigerator 10 .

For example, the air channel dividing device 300 may be plate-shaped and extended along a vertical plane, so that the separated cooling air channel 221 and heating air channel 222 are arranged side by side. For example, the air duct dividing device 300 may be a flat plate extending along a vertical plane. In some embodiments, the rear wall of the storage compartment 210 may extend along a vertical plane, and the air duct partition device 300 may be parallel to the rear wall of the storage compartment 210 . The rear wall of the storage compartment is provided with an installation opening communicating with the heating air duct 222 . The electrolytic deoxygenation device 500 is arranged at the installation opening, and the installation opening is closed, so that the cathode plate of the electrolytic deoxygenation device 500 communicates with the inner space of the storage compartment by air flow.

The refrigerator 10 of this embodiment utilizes a specially designed air duct separating device 300 to separate the cooling air duct 221 and the heating air duct 222 , and has a compact structure and low manufacturing cost.

For example, the cooling air passage 221 may be located at the rear side of the heating air passage 222 . That is, in the front-rear direction of the refrigerator 10 , the cooling air passage 221 , the heating air passage 222 and the storage compartment 210 are arranged sequentially from back to front.

In some embodiments, a heat exchange cavity 250 for installing the evaporator 800 is also formed inside the box body 200. The heat exchange cavity 250 is located at the rear side of the cooling air duct and is adjacent to the cooling air duct 221, which facilitates shortening The flow path of the refrigerated airflow reduces the loss of cooling capacity. The evaporator 800 is disposed in the heat exchange chamber 250 . And the heat exchange chamber 250 communicates with the cooling air duct 221 through the heat exchange port 251 , so that the heat exchange air flow passing through the evaporator 800 can enter the cooling air duct 221 through the heat exchange port 251 , so that the cooling air duct 221 forms a cooling system. airflow. In some embodiments, a heat exchange blower 400 may be provided in the heat exchange cavity 250 to form a heat exchange air flow in the heat exchange cavity 250 that flows through the evaporator 800 and flows to the heat exchange opening 251 .

The air duct adjustment device 600 is set at the air outlet end of the heating air duct and the air outlet end of the cooling air duct, and is used to controlly switch the heating air duct and the cooling air duct, so as to switch the cooling air duct 221 and the heating air duct 222 , so that the storage compartment 210 selectively receives the heating airflow or the cooling airflow. That is to say, the air channel adjustment device 600 is used to control the storage compartment 210 to selectively communicate with a certain air channel, so as to use the connected air channel to deliver the corresponding heat exchange airflow to the storage compartment 210 . The air duct regulating device can be data-linked with the control device.

The air channel regulating device 600 may be a damper. The air outlet end of the cooling air duct 221 may refer to the part through which the air flows out of the cooling air duct 221 . The air outlet end of the heating air duct 222 may refer to the part through which the air flows when it flows out of the heating air duct 222 .

There are two dampers in this embodiment, namely the first damper 610 and the second damper 620, wherein the first damper 610 is set at the air outlet end of the cooling air duct 221, and the second damper 620 is set at the air outlet end of the heating air duct 222. end.

By using the first damper 610 to open and close the air outlet end of the cooling air duct 221, and using the second damper 620 to open and close the air outlet end of the heating air duct 222 to switch the cooling air duct 221 and the heating air duct 222, it can be flexibly adjusted The air supply mode of the storage compartment 210.

A connection section 230 is also formed in the box body 200 , connecting the air supply port 211 with the air outlet end of the cooling air duct 221 and the air outlet end of the heating air duct 222 . That is, the connection section 230 not only connects the air supply port 211 with the air outlet end of the cooling air duct 221 , but also communicates the air supply port 211 with the air outlet end of the heating air duct 222 . That is to say, the connecting section 230 is located on a common airflow path from the air outlet end of the cooling air channel 221 to the air outlet 211 and from the air outlet end of the heating air channel 222 to the air outlet 211 . Both the cooling air flowing out of the cooling air passage 221 and the heating air flowing out of the heating air passage 222 can flow into the air outlet 211 through the connection section 230 , thereby entering the inner space of the storage compartment 210 . The air outlet 211 of this embodiment may be located at the bottom section of the storage compartment 210 . The air outlet end of the cooling air channel 221 and the air outlet end of the heating air channel 222 are higher than the air outlet 211 .

The refrigerator 10 may further include a blower fan 700 disposed in the connecting section 230 for promoting the formation of an air flow passing through the cooling air duct 221 and/or the heating air duct 222 and then flowing through the air outlet 211 . For example, when the first damper 610 is opened, the blower fan 700 can make the cooling air flow pass through the cooling air channel 221 , the connecting section 230 and the air outlet 211 in sequence, and enter the storage compartment 210 . When the second damper 620 is opened, the blower fan 700 can make the heating air flow through the heating air duct 222 , the connecting section 230 and the air outlet 211 in sequence, and enter the storage compartment 210 . The direction of the arrow in FIG. 5 shows the flow direction of the airflow.

By adding the blower fan 700 in the connection section 230 , the flow rate of the cooling airflow and the heating airflow can be accelerated, thereby increasing the temperature adjustment rate of the storage compartment 210 .

An air supply fan 700 is provided on the common airflow path from the air outlet end of the cooling air duct 221 to the air supply port 211 and from the air outlet end of the heating air duct 222 to the air supply port 211, and the air supply fan 700 can be used to simultaneously guide the cooling air flow and the heating air flow, realize the sharing of the blower fan 700, which is beneficial to simplify the structure of the refrigerator 10.

For example, the blower fan 700 can be controlled to be turned on when any one of the cooling air passage 221 and the heating air passage 222 is connected, so as to speed up the flow rate of the cooling air flow or the heating air flow.

In some optional embodiments, the number of dampers can also be changed to one. FIG. 6 is a schematic structural diagram of a refrigerator 10 according to another embodiment of the present invention. For example, the air outlet end of the first sub-air duct 221 and the air outlet end of the second sub-air duct 222 can be openings respectively, and these two openings can be arranged adjacent to each other and in the same plane. At this time, a damper 600 can be used to simultaneously close Two openings, so as to close the first sub-air duct 221 and the second sub-air duct 222, and the damper 600 can also open the air outlet of the first sub-air duct 221 or the outlet of the second sub-air duct 222 through controlled movement. Wind side. The direction of the arrow in FIG. 6 shows the flow direction of the airflow.

In the refrigerator and its control method of the present invention, by arranging in the refrigerator a heating air passage for introducing a heating air flow into the storage compartment, and arranging an electrolytic deoxidizer in the heating air passage, and according to the storage compartment The internal environmental parameters determine the working state of the electrolytic deoxygenation device and the on-off state of the heating air duct, which can optimize the temperature adjustment means of the refrigerator so that it can rapidly increase the temperature of the storage compartment by relying on the heat provided by the electrolytic deoxygenation device. temperature, so as to meet the needs of users.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

A method for controlling a refrigerator. The refrigerator has a storage compartment and a heating air duct for introducing a heating airflow into the storage compartment, wherein an electrolytic deoxygenation device is arranged in the heating air duct for Oxygen inside the storage compartment is consumed through an electrochemical reaction and heat is provided to the heating air duct, and the control method includes:

Acquiring internal environmental parameters of the storage compartment of the refrigerator;

The working state of the electrolytic deoxygenation device and the on-off state of the heating air duct are determined according to the internal environment parameters of the storage compartment.
The control method according to claim 1, wherein,

In the step of acquiring the internal environmental parameters of the storage compartment of the refrigerator, the internal environmental parameters of the storage compartment include the temperature and/or oxygen concentration of the storage compartment.
The control method according to claim 2, wherein,

The step of determining the working state of the electrolytic deoxidizer and the on-off state of the heating air duct according to the temperature of the storage compartment includes:

obtaining the set temperature of the storage compartment;

judging whether the difference between the temperature of the storage compartment and the set temperature is smaller than a preset first threshold;

If so, start the electro-deoxygenation device and communicate with the heating air duct, so as to increase the temperature of the storage compartment by using the heat provided by the electro-de-oxidation device.
The control method according to claim 2, wherein,

The step of determining the working state of the electrolytic deoxygenation device and the on-off state of the heating air duct according to the temperature and oxygen concentration of the storage compartment includes:

Obtain the set temperature and set oxygen concentration of the storage compartment;

judging whether the difference between the temperature of the storage compartment and the set temperature is smaller than a preset first threshold and whether the oxygen concentration of the storage compartment is higher than the set oxygen concentration;

If so, start the electro-deoxygenation device and communicate with the heating air duct, so as to use the heat provided by the electro-de-oxygenation device to increase the temperature of the storage compartment and consume the oxygen concentration of the storage compartment.
The control method according to claim 4, wherein,

The step of determining the working state of the electrolytic deoxygenation device and the on-off state of the heating air duct according to the temperature and oxygen concentration of the storage compartment further includes:

If the difference between the temperature of the storage compartment and the set temperature is greater than or equal to a preset first threshold and the oxygen concentration of the storage compartment is higher than the set oxygen concentration, then start the The electro-deoxygenation device is used and the heating air duct is turned off, so that the electro-de-oxygenation device is used to consume the oxygen inside the storage compartment.
The control method according to claim 3 or 4, wherein, after starting the electrolytic oxygen removal device and connecting the heating air duct, further comprising:

Acquiring the set running time of the electrolytic deoxygenation device;

Judging whether the running time of the electrolytic deoxygenation device reaches the set running time;

If yes, then shut down the electrolytic oxygen removal device, and delay shutting down the heating air duct.
The control method according to any one of claims 1-5, wherein,

The refrigerator also has a refrigerating air passage for introducing a refrigerating air flow into the storage compartment, and an evaporator is arranged in the refrigerating air passage for providing cooling capacity to the refrigerating air passage; and the control Methods also include:

The working state of the evaporator and the on-off state of the cooling air passage are determined according to the internal environment parameters of the storage compartment.
The control method according to claim 7, wherein,

The step of determining the working state of the evaporator and the on-off state of the cooling air duct according to the temperature of the storage compartment includes:

obtaining the set temperature of the storage compartment;

judging whether the difference between the temperature of the storage compartment and the set temperature is greater than or equal to a preset second threshold;

If so, start the evaporator and communicate with the cooling air passage, so as to reduce the temperature of the storage compartment by using the cold energy provided by the evaporator.
The control method according to claim 8, wherein, after starting the evaporator and connecting the cooling air duct, further comprising:

Detect the temperature of the storage compartment, and when the temperature of the storage compartment reaches the set temperature, close the evaporator, and delay shutting off the cooling air duct.
A refrigerator comprising:

A box body, inside which is formed a storage compartment and a heating air duct for introducing a heating air flow into the storage compartment;

An electrolytic deoxygenation device is installed in the heating air duct;

A processor and a memory, where a machine-executable program is stored in the memory, and when the machine-executable program is executed by the processor, it is used to realize the control method according to any one of claims 1-9.