Refrigerator and control method thereof

Abstract

The present invention provides a refrigerator and a control method thereof, wherein the refrigerator has a storage compartment and a heating air duct for introducing a heating air flow into the storage compartment, wherein an electrolytic deoxidation device is arranged in the heating air duct for consuming oxygen inside the storage compartment through an electrochemical reaction and providing heat to the heating air duct, and the control method comprises: obtaining internal environmental parameters of the storage compartment of the refrigerator; determining the working state of the electrolytic deoxidation device and the on-off state of the heating air duct according to the internal environmental parameters of the storage compartment. The control method of the present invention can optimize the temperature adjustment means of the refrigerator, so that it can quickly increase the temperature of the storage compartment by relying on the heat provided by the electrolytic deoxidation device, thereby meeting the use requirements of the user.

Description

Technical Field

[0001] The invention relates to refrigeration, in particular to a refrigerator and a control method thereof. Background Art

[0002] The refrigerator has a low-temperature storage function and can use the refrigeration system 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.

[0003] However, the inventors have realized that, in the prior art refrigerators, when the refrigeration system is started, it can only reduce the temperature of the storage space, and the temperature adjustment means are relatively simple. If the user wants to appropriately increase the temperature of the storage space, the storage space can only be naturally heated up during the shutdown of the refrigeration system, which will result in a slow temperature adjustment process and reduce the user experience. Summary of the invention

[0004] An object of the present invention is to overcome at least one technical defect in the prior art and to provide a refrigerator and a control method thereof.

[0005] A further object of the present invention is to optimize the temperature regulation means of the refrigerator so that the temperature of the storage compartment can be quickly increased to meet the user's usage requirements.

[0006] A further object of the present invention is to utilize the heat generated by the electrochemical reaction of the electrolytic deoxidation device of the refrigerator to adjust the temperature of the storage compartment, so as to realize the functional reuse of the electrolytic deoxidation device.

[0007] Yet another further object of the present invention is to flexibly adjust the temperature of the storage compartment.

[0008] According to one aspect of the present invention, a control method for a refrigerator is provided, the refrigerator having a storage compartment and a heating air duct for introducing a heating air flow into the storage compartment, wherein an electrolytic deoxidation device is arranged in the heating air duct for consuming oxygen inside the storage compartment through an electrochemical reaction and providing heat to the heating air duct, and the control method comprises: obtaining internal environmental parameters of the storage compartment of the refrigerator; and determining a working state of the electrolytic deoxidation device and an on-off state of the heating air duct according to the internal environmental parameters of the storage compartment.

[0009] Optionally, in the step of acquiring internal environmental parameters of a storage compartment of the refrigerator, the internal environmental parameters of the storage compartment include temperature and / or oxygen concentration of the storage compartment.

[0010] Optionally, 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 less than a preset first threshold; if so, starting the electrolytic deoxidizer and connecting the heating air duct to increase the temperature of the storage compartment by using the heat provided by the electrolytic deoxidizer.

[0011] Optionally, the step of determining the working state of the electrolytic deoxidation device and the on-off state of the heating air duct according to the temperature and oxygen concentration of the storage compartment includes: obtaining a set temperature and a 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 a preset first threshold value and the oxygen concentration of the storage compartment is higher than the set oxygen concentration; if so, starting the electrolytic deoxidation device and connecting the heating air duct to consume the oxygen concentration of the storage compartment.

[0012] Optionally, the step of determining the working state of the electrolytic deoxidation device and the on-off state of the heating air duct according to the temperature and oxygen concentration of the storage compartment also 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 value and the oxygen concentration of the storage compartment is higher than the set oxygen concentration, the electrolytic deoxidation device is started and the heating air duct is turned off to utilize the electrolytic deoxidation device to consume the oxygen inside the storage compartment.

[0013] Optionally, after starting the electrolytic deoxidation device and connecting the heating air duct, it also includes: obtaining the set operating time of the electrolytic deoxidation device; judging whether the operating time of the electrolytic deoxidation device reaches the set operating time; if so, shutting down the electrolytic deoxidation device and delaying the shutdown of the heating air duct.

[0014] Optionally, the refrigerator also has a refrigeration duct for introducing refrigeration air flow into the storage compartment, and an evaporator is provided in the refrigeration duct for providing cooling to the refrigeration duct; and the control method also includes: determining the working state of the evaporator and the on-off state of the refrigeration duct according to the internal environmental parameters of the storage compartment.

[0015] Optionally, the step of determining the working state of the evaporator and the on-off state of the refrigeration duct according to the temperature of the storage room includes: obtaining the set temperature of the storage room; judging whether the difference between the temperature of the storage room and the set temperature is greater than or equal to a preset second threshold; if so, starting the evaporator and connecting the refrigeration duct to use the cooling capacity provided by the evaporator to reduce the temperature of the storage room.

[0016] Optionally, after starting the evaporator and connecting the refrigeration air duct, the method further includes: detecting the temperature of the storage compartment, and when the temperature of the storage compartment reaches a set temperature, shutting down the evaporator and delaying shutting down the refrigeration air duct.

[0017] According to another aspect of the present invention, a refrigerator is provided, comprising: a cabinet having a storage compartment and a heating air duct for introducing a heating air flow into the storage compartment; an electrolytic deoxidation device arranged in the heating air duct; a processor and a memory, wherein a machine executable program is stored in the memory, and when the machine executable program is executed by the processor, it is used to implement the control method according to any one of the above items.

[0018] The refrigerator and control method thereof of the present invention can optimize the temperature regulation means of the refrigerator by arranging a heating air duct for introducing a heating air flow into the storage compartment in the refrigerator, arranging an electrolytic deoxidizer in the heating air duct, and determining the working state of the electrolytic deoxidizer and the on-off state of the heating air duct according to the internal environmental parameters of the storage compartment, so that the temperature of the storage compartment can be quickly increased by relying on the heat provided by the electrolytic deoxidizer, thereby meeting the user's usage requirements.

[0019] Furthermore, in the refrigerator and control method thereof of the present invention, since the electrolytic deoxidation device is arranged in the heating air duct and can provide heat to the heating air duct, the electrolytic deoxidation device can not only deoxygenate the storage compartment through electrochemical reactions, but also adjust the temperature of the storage compartment through electrochemical reactions, thereby realizing functional reuse of the electrolytic deoxidation device and allowing the refrigerator to adjust the temperature of the storage compartment while deoxygenating.

[0020] Furthermore, the refrigerator and control method thereof of the present invention, by arranging a heating air duct and a cooling air duct in the refrigerator, and arranging an electrolytic deoxidation device and an evaporator in the heating air duct and the cooling air duct respectively, can determine the working state of the electrolytic deoxidation device, the on-off state of the heating air duct, the working state of the evaporator and the on-off state of the cooling air duct according to the internal environmental parameters of the storage compartment, which enables the refrigerator of the present invention to flexibly adjust the temperature of the storage compartment and has the advantages of a streamlined structure and a simple control process.

[0021] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0023] Figure 1 is a schematic block diagram of a refrigerator according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a refrigerator control method according to an embodiment of the present invention;

[0025] Figure 3 is a control flow chart of a refrigerator according to an embodiment of the present invention;

[0026] Figure 4 is a control flow chart of a refrigerator according to another embodiment of the present invention;

[0027] Figure 5 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

[0028] Figure 6 is a schematic structural diagram of a refrigerator according to another embodiment of the present invention. DETAILED DESCRIPTION

[0029] Figure 1 is a schematic block diagram of a refrigerator 10 according to an embodiment of the present invention.

[0030] The refrigerator 10 may generally include a cabinet 200 , an electrolytic deoxidation device 500 , a processor 110 , and a memory 120 .

[0031] The box body 200 has a storage compartment 210 and a heating air duct 222 for introducing a heating airflow into the storage compartment 210. The heating airflow refers to an airflow with a relatively high temperature and used to increase the temperature of the storage compartment 210. The heating air duct 222 can be connected to the air supply port 211 of the storage compartment 210, so that the heating airflow can enter the storage compartment 210 through the air supply port 211.

[0032] An electrolytic deoxidation device 500 is provided in the heating air duct 222, that is, the electrolytic deoxidation device 500 is provided in the heating air duct 222. The electrolytic deoxidation device 500 is used to consume the oxygen inside the storage compartment 210 through an electrochemical reaction and provide heat to the heating air duct 222. That is to say, the electrolytic deoxidation device 500 can consume the oxygen inside the storage compartment 210 on the one hand, and provide heat to the heating air duct 222 on the other hand. The electrolytic deoxidation device 500 can generate heat when performing an electrochemical reaction, and thus can serve as a heat source for the heating air duct 222. The electrolytic deoxidation device 500 can generally include an anode plate and a cathode plate. For example, the oxygen in the air can undergo a reduction reaction at the cathode plate, that is: O 2 +2H 2 O+4e - →4OH - OH generated by the cathode plate - Oxidation reaction can occur at the anode plate and generate oxygen, namely: 4OH - →O 2 +2H 2 O+4e - .

[0033] The processor 110 and the memory 120 can form a control device for the refrigerator 10, and the control device can be arranged 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 can be a central processing unit (CPU), or a digital processing unit (DSP), etc. The memory 120 is used to store the program executed by the processor 110. The memory 120 can be any medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to this. The memory 120 can also be a combination of various memories. Since the machine executable program 121 implements the various processes of the following method embodiments when executed by the processor 110, and can achieve the same technical effect, it will not be repeated here to avoid repetition.

[0034] Figure 2 is a schematic diagram of a control method of a refrigerator 10 according to an embodiment of the present invention. The control method generally may include the following steps:

[0035] Step S202 , obtaining internal environmental parameters of the storage compartment 210 of the refrigerator 10 , such as at least one of the parameters such as the temperature, oxygen concentration, and humidity of the storage compartment 210 .

[0036] Step S204, determining the working state of the electrolytic deoxidation device 500 and the on-off state of the heating air duct 222 according to the internal environmental parameters of the storage compartment 210. The working state of the electrolytic deoxidation device 500 includes an on state and an off state. The on-off state of the heating air duct 222 includes a connected state and a closed state. When the heating air duct 222 is connected, the airflow path between it and the storage compartment 210 is connected, and when the heating air duct 222 is closed, the airflow path between it and the storage compartment 210 is closed.

[0037] The refrigerator 10 and the control method thereof of the present embodiment can optimize the temperature regulation means of the refrigerator 10 by arranging a heating air duct 222 in the refrigerator 10 for introducing a heating air flow to the storage compartment 210, arranging an electrolytic deoxidizer 500 in the heating air duct 222, and determining the working state of the electrolytic deoxidizer 500 and the on-off state of the heating air duct 222 according to the internal environmental parameters of the storage compartment 210, so that the temperature regulation means of the refrigerator 10 can be optimized so that the temperature of the storage compartment 210 can be quickly increased by relying on the heat provided by the electrolytic deoxidizer 500, thereby meeting the user's usage requirements.

[0038] Since the electrolytic deoxidation device 500 is arranged in the heating air duct 222 and can provide heat to the heating air duct 222, the electrolytic deoxidation device 500 can not only deoxygenate the storage compartment 210 through an electrochemical reaction, but also adjust the temperature of the storage compartment 210 through an electrochemical reaction, thereby realizing the functional reuse of the electrolytic deoxidation device 500 and allowing the refrigerator 10 to adjust the temperature of the storage compartment 210 while deoxygenating.

[0039] In the above step S202, the internal environmental 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, which are disposed in the storage compartment 210, wherein the temperature sensor 900 is used to detect the temperature inside the storage compartment 210, and the oxygen concentration sensor is used to detect the oxygen concentration inside the storage compartment 210.

[0040] In some embodiments, the internal environmental parameters of the storage room 210 include the temperature of the storage room 210. In the above step S204, the step of determining the working state of the electrolytic deoxidizer 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, judging whether the difference between the temperature of the storage room 210 and the set temperature is less than a preset first threshold, and if so, starting the electrolytic deoxidizer 500 and connecting the heating air duct 222 to increase the temperature of the storage room 210 by using the heat provided by the electrolytic deoxidizer 500.

[0041] 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, it indicates that the temperature of the storage compartment 210 is too low, and the electrolytic deoxidation device 500 needs to be used to provide heat to the storage compartment 210. 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, -2 to -5°C.

[0042] When the electrolytic deoxidizer 500 is started and connected to the heating air duct 222, the heat generated by the electrochemical reaction of the electrolytic deoxidizer 500 can enter the storage compartment 210 through the heating air duct 222, thereby increasing the temperature of the storage compartment 210. Since the electrolytic deoxidizer 500 also consumes oxygen in the storage compartment 210 during the electrochemical reaction, the electrolytic deoxidizer 500 can further reduce the oxygen concentration in the storage compartment 210 while increasing the temperature of the storage compartment 210, which can maintain a good low-oxygen fresh-keeping atmosphere in the storage compartment 210.

[0043] In some optional embodiments, the internal environmental parameters of the storage compartment 210 include the temperature of the storage compartment 210 and the oxygen concentration inside the storage compartment 210. The step of determining the working state of the electrolytic deoxidation 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 includes: obtaining the set temperature and the set oxygen concentration of the storage compartment 210, judging whether the difference between the temperature of the storage compartment 210 and the set temperature is less than a preset first threshold value and the oxygen concentration of the storage compartment 210 is higher than the set oxygen concentration, and if so, starting the electrolytic deoxidation device 500 and connecting the heating air duct 222, so as to increase the temperature of the storage compartment 210 and consume the oxygen concentration of the storage compartment 210 by using the heat provided by the electrolytic deoxidation device 500.

[0044] 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. At this time, the electrolytic deoxidation device 500 needs to be used 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 deoxidation device 500 consumes oxygen in the storage compartment 210 and releases heat during the electrochemical reaction, when the temperature of the storage compartment 210 is too low and the oxygen concentration is too high, by starting the electrolytic deoxidation device 500 and connecting the heating air duct 222, the oxygen reduction demand and the temperature increase demand of the storage compartment 210 can be met at the same time, killing two birds with one stone.

[0045] In some further embodiments, after the step of determining whether the difference between the temperature of the storage compartment 210 and the set temperature is less than a preset first threshold value and the oxygen concentration of the storage compartment 210 is higher than the set oxygen concentration, the step of determining the working state of the electrolytic deoxidation 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 difference between the temperature of the storage compartment 210 and the set temperature is greater than or equal to the preset first threshold value and the oxygen concentration of the storage compartment 210 is higher than the set oxygen concentration, starting the electrolytic deoxidation device 500 and turning off the heating air duct 222 to consume the oxygen inside the storage compartment 210 by using the electrolytic deoxidation device 500.

[0046] 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 the electrolytic deoxidation device 500 is not required to provide heat to the storage compartment 210 .

[0047] When the electrolytic deoxidation device 500 is started and the heating air duct 222 is turned off, although the electrolytic deoxidation device 500 can consume the oxygen in the storage compartment 210 by means of an electrochemical reaction, the heat generated cannot enter the storage compartment 210 via the heating air duct 222, and will not cause the temperature of the storage compartment 210 to be higher. This can reduce or avoid the adverse effect of the heat released by the electrolytic deoxidation device 500 on the temperature of the storage compartment 210.

[0048] In some optional embodiments, after the electrolytic deoxidizer 500 is started and connected to the heating air duct 222, the control method may further include: obtaining the set operating time of the electrolytic deoxidizer 500, determining whether the operating time of the electrolytic deoxidizer 500 reaches the set operating time, and if so, shutting down the electrolytic deoxidizer 500 and delaying shutting down the heating air duct 222. For example, the heating air duct 222 may be shut down 10 to 30 minutes after the electrolytic deoxidizer 500 is shut down.

[0049] Since the heat of the electrolytic deoxidizer 500 will not be lost 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 turning off of the heating air duct 222, the heat generated by the electrolytic deoxidizer 500 during operation can be fully utilized.

[0050] The set operation time can be determined according to the start-up condition of the electrolytic deoxidation device 500. For example, when the start-up condition of the electrolytic deoxidation device 500 is only that the difference between the temperature of the storage compartment 210 and the set temperature is less than the preset first threshold value, or when the start-up condition of the electrolytic deoxidation device 500 is that the difference between the temperature of the storage compartment 210 and the set temperature is less than the preset first threshold value and the oxygen concentration of the storage compartment 210 is higher than the set oxygen concentration, the set operation time can be calculated according to the difference between the temperature of the storage compartment 210 and the set temperature, and the larger the difference, the larger the value of the set operation time. When the start-up condition of the electrolytic deoxidation device 500 is only that the oxygen concentration of the storage compartment 210 is higher than the set oxygen concentration, the set operation 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 operation time.

[0051] In some embodiments, the set operating time of the electrolytic deoxidizer 500 can be a fixed value in the range of 10 to 60 minutes, for example, 30 minutes. When the storage compartment 210 has not been opened for a long time, if the operating time of the electrolytic deoxidizer 500 reaches the set operating time, the oxygen concentration inside the storage compartment 210 can be reduced to below the set oxygen concentration, and the temperature of the storage compartment 210 can be increased to the set temperature. In other embodiments, the closing condition of the electrolytic deoxidizer 500 can be changed. For example, after obtaining the set operating time of the electrolytic deoxidizer 500, the control method can further include: obtaining the door opening and closing records of the refrigerator 10, judging whether a door opening event occurs within a set time period according to the door opening and closing records, and if so, adjusting the set operating time according to the number of door opening and closing times, for example, the set operating time can be extended, and the electrolytic deoxidizer 500 is controlled according to the adjusted set operating time.

[0052] In some optional embodiments, the refrigerator 10 further has a cooling air duct 221 for introducing cooling airflow into the storage compartment 210. The cooling airflow refers to an airflow with a relatively low temperature and used to reduce the temperature of the storage compartment 210. The cooling air duct 221 can be connected to the air supply port 211 of the storage compartment 210, so that the cooling airflow can enter the storage compartment 210 through the air supply port 211.

[0053] An evaporator 800 is provided in the cooling air duct 221 to provide cooling to the cooling air duct 221. When the evaporator 800 is started and operated, the surface temperature is low and heat can be exchanged with the surrounding air, so that it can serve as a cooling source for the cooling air duct 221.

[0054] After the step of determining the working state of the electrolytic deoxidation 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 on-off state of the refrigeration air duct 221 according to the internal environmental parameters of the storage compartment 210. The working state of the evaporator 800 includes a start state and a shut-down state. The on-off state of the refrigeration air duct 221 includes a connected state and a shut-down state. When the refrigeration air duct 221 is connected, the airflow path between it and the storage compartment 210 is connected, and when the refrigeration air duct 221 is shut off, the airflow path between it and the storage compartment 210 is shut off.

[0055] The refrigerator 10 of this embodiment arranges a heating air duct 222 and a cooling air duct 221 in the refrigerator 10, and arranges an electrolytic deoxidation device 500 and an evaporator 800 in the heating air duct 222 and the cooling air duct 221 respectively. The working state of the electrolytic deoxidation device 500, the on-off state of the heating air duct 222, the working state of the evaporator 800 and the on-off state of the cooling air duct 221 can be determined according to the internal environmental parameters of the storage compartment 210. This enables the refrigerator 10 of this embodiment to flexibly adjust the temperature of the storage compartment 210, and has the advantages of a simple structure and a simple control process.

[0056] In some optional embodiments, the step of determining the working state of the evaporator 800 and the on-off state of the refrigeration duct 221 according to the temperature of the storage compartment 210 includes: obtaining the set temperature of the storage compartment 210, and determining whether the difference between the temperature of the storage compartment 210 and the set temperature is greater than or equal to a preset second threshold value. If so, starting the evaporator 800 and connecting the refrigeration duct 221 to use the cooling capacity provided by the evaporator 800 to reduce the temperature of the storage compartment 210.

[0057] When the difference between the temperature of the storage room 210 and the set temperature is greater than or equal to the preset second threshold, it indicates that the temperature of the storage room 210 is too high, and the evaporator 800 needs to be used to provide cooling to the storage room 210. 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, 0 to 5°C. The second threshold can be greater than the first threshold. When the evaporator 800 is started and the refrigeration duct 221 is connected, the cooling generated by the evaporator 800 during operation can enter the storage room 210 through the refrigeration duct 221, thereby reducing the temperature of the storage room 210.

[0058] After the evaporator 800 is started and the cooling air duct 221 is connected, 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, shutting down the evaporator 800 and delaying shutting down the cooling air duct 221. For example, the cooling air duct 221 may be shut down 10 to 30 minutes after the evaporator 800 is shut down.

[0059] Since the cold energy of the evaporator 800 will not be lost immediately after it is turned off, the cooling air duct 221 will still deliver cold energy to the storage compartment 210 before it is turned off. By delaying the turning off of the cooling air duct 221, the cold energy generated when the evaporator 800 is running can be fully utilized.

[0060] Figure 3 1 is a control flow chart of a refrigerator 10 according to an embodiment of the present invention. The control flow may generally include:

[0061] Step S302 , obtaining the temperature of the storage compartment 210 of the refrigerator 10 .

[0062] Step S304 , obtaining the set temperature of the storage compartment 210 .

[0063] Step S306, determining whether the difference between the temperature of the storage compartment 210 and the set temperature is less than a preset first threshold, if so, executing step S308, if not, executing step S316.

[0064] Step S308 , starting the electrolytic deoxidation device 500 and connecting it to the heating air duct 222 , so as to utilize the heat provided by the electrolytic deoxidation device 500 to increase the temperature of the storage compartment 210 .

[0065] Step S310, obtaining the set operating time of the electrolytic deoxygenation device 500.

[0066] Step S312, determining whether the operation time of the electrolytic deoxygenation device 500 reaches the set operation time, if yes, executing step S314, if not, executing step S312.

[0067] Step S314, turning off the electrolytic deoxidation device 500, and delaying the shut-off of the heating air duct 222.

[0068] Step S316, determining whether the difference between the temperature of the storage compartment 210 and the set temperature is greater than or equal to a preset second threshold, if so, executing step S318, if not, executing step S302.

[0069] Step S318 , starting the evaporator 800 and connecting the cooling air duct 221 to reduce the temperature of the storage compartment 210 by using the cooling energy provided by the evaporator 800 .

[0070] Step S320 , detecting the temperature of the storage compartment 210 .

[0071] 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 shut down with a delay.

[0072] Figure 4 is a control flow chart of a refrigerator 10 according to another embodiment of the present invention. The control flow generally may include:

[0073] Step S402 , obtaining the temperature and oxygen concentration of the storage compartment 210 of the refrigerator 10 .

[0074] Step S404 , obtaining the set temperature and set oxygen concentration of the storage compartment 210 .

[0075] Step S406, determining whether the oxygen concentration in the storage compartment 210 is higher than a set oxygen concentration, if so, executing step S408, if not, executing step S416.

[0076] Step S408, starting the electrolytic deoxygenation device 500.

[0077] Step S410, determining whether the difference between the temperature of the storage compartment 210 and the set temperature is less than a preset first threshold, if so, executing step S412, if not, executing step S414.

[0078] Step S412 , connecting the heating air duct 222 .

[0079] Step S414 , when the difference between the temperature of the storage compartment 210 and the set temperature is greater than or equal to a preset second threshold, the evaporator 800 is started and the cooling air duct 221 is connected.

[0080] Step S416 , when the difference between the temperature of the storage compartment 210 and the set temperature is less than a preset first threshold, the electrolytic deoxidation device 500 is started and connected to the heating air duct 222 .

[0081] Figure 5 2 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 partitioning device 300 and an air duct regulating device 600 .

[0082] The air duct dividing 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 can be located at the rear side of the storage compartment 210. The directional terms such as "front" and "rear" are relative to the actual use state of the refrigerator 10.

[0083] For example, the air duct partition device 300 may be plate-shaped and extend along the vertical plane so that the separated cooling air duct 221 and heating air duct 222 are arranged side by side in front and back. For example, the air duct partition device 300 may be a flat plate extending along the vertical plane. In some embodiments, the rear wall of the storage compartment 210 may extend along the 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 port connected to the heating air duct 222. The electrolytic deoxidation device 500 is arranged at the installation port, and the installation port is closed, so that the cathode plate of the electrolytic deoxidation device 500 is connected to the air flow of the internal space of the storage compartment.

[0084] The refrigerator 10 of this embodiment uses a specially designed air duct dividing device 300 to separate the cooling air duct 221 and the heating air duct 222, and has a sophisticated structure and low manufacturing cost.

[0085] For example, the cooling air duct 221 may be located at the rear side of the heating air duct 222. That is, in the front-to-back direction of the refrigerator 10, the cooling air duct 221, the heating air duct 222 and the storage compartment 210 are arranged in sequence from back to front.

[0086] In some embodiments, a heat exchange chamber 250 for installing the evaporator 800 is also formed inside the housing 200. The heat exchange chamber 250 is located at the rear side of the refrigeration air duct and is arranged adjacent to the refrigeration air duct 221, which is convenient for shortening the flow path of the refrigeration airflow and reducing the loss of cold. The evaporator 800 is arranged in the heat exchange chamber 250. The heat exchange chamber 250 is connected to the refrigeration air duct 221 through the heat exchange port 251. In this way, the heat exchange airflow flowing through the evaporator 800 can enter the refrigeration air duct 221 through the heat exchange port 251, so that a refrigeration airflow is formed in the refrigeration air duct 221. In some embodiments, a heat exchange fan 400 can be arranged in the heat exchange chamber 250 to promote the formation of a heat exchange airflow in the heat exchange chamber 250 that flows through the evaporator 800 and flows to the heat exchange port 251.

[0087] The air duct regulating device 600 is disposed at the outlet end of the heating air duct and the outlet end of the cooling air duct, and is used to controllably open and close the heating air duct and the cooling air duct, so as to open and close 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. In other words, the air duct regulating device 600 is used to control the storage compartment 210 to selectively connect to a certain air duct, so as to use the connected air duct to transport the corresponding heat exchange airflow to the storage compartment 210. The air duct regulating device can be data-connected to the control device.

[0088] The air duct adjustment device 600 may be a damper. The air outlet of the cooling air duct 221 may refer to the portion through which the air flows when it flows out of the cooling air duct 221. The air outlet of the heating air duct 222 may refer to the portion through which the air flows when it flows out of the heating air duct 222.

[0089] In this embodiment, there are two dampers, namely a first damper 610 and a second damper 620 . The first damper 610 is disposed at the air outlet end of the cooling air duct 221 , and the second damper 620 is disposed at the air outlet end of the heating air duct 222 .

[0090] By using the first damper 610 to open and close the air outlet of the cooling air duct 221 and using the second damper 620 to open and close the air outlet of the heating air duct 222 to open and close the cooling air duct 221 and the heating air duct 222, the air supply mode of the storage compartment 210 can be flexibly adjusted.

[0091] A connecting section 230 is also formed in the box body 200, connecting the air outlet 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 connecting section 230 connects the air outlet 211 with the air outlet end of the cooling air duct 221, and connects the air outlet 211 with the air outlet end of the heating air duct 222. In other words, the connecting section 230 is located on the common air flow path from the air outlet end of the cooling air duct 221 to the air outlet 211, and from the air outlet end of the heating air duct 222 to the air outlet 211. The cooling airflow flowing out of the cooling air duct 221 and the heating airflow flowing out of the heating air duct 222 can flow into the air outlet 211 through the connecting section 230, thereby entering the internal space of the storage compartment 210. The air outlet 211 of this embodiment can be located at the bottom section of the storage compartment 210. The air outlet ends of the cooling air duct 221 and the heating air duct 222 are higher than the air supply port 211 .

[0092] The refrigerator 10 may further include an air supply fan 700, which is disposed in the connecting section 230 and is used to promote the formation of an air flow that flows through the cooling air duct 221 and / or the heating air duct 222 and then flows through the air supply port 211. For example, when the first air door 610 is opened, the air supply fan 700 can promote the cooling air flow to flow through the cooling air duct 221, the connecting section 230 and the air supply port 211 in sequence, and enter the storage compartment 210. When the second air door 620 is opened, the air supply fan 700 can promote the heating air flow to flow through the heating air duct 222, the connecting section 230 and the air supply port 211 in sequence, and enter the storage compartment 210. Figure 5 The arrow in the middle shows the direction of air flow.

[0093] By adding the air supply fan 700 in the connecting section 230 , the flow rate of the cooling airflow and the heating airflow can be accelerated, thereby improving the temperature adjustment rate of the storage compartment 210 .

[0094] An air supply fan 700 is provided on a common air flow 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. The air supply fan 700 can be used to guide the cooling airflow and the heating airflow at the same time, thereby realizing the sharing of the air supply fan 700, which is conducive to simplifying the structure of the refrigerator 10.

[0095] For example, the air supply fan 700 can be controlled to open when any one of the cooling air duct 221 and the heating air duct 222 is connected to speed up the flow rate of the cooling airflow or the heating airflow.

[0096] In some optional embodiments, the number of dampers may also be changed to one. Figure 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 the two openings can be arranged adjacent to each other and in the same plane. In this case, a damper 600 can be used to simultaneously close the two openings, thereby shutting off the first sub-air duct 221 and the second sub-air duct 222. The damper 600 can also open the air outlet end of the first sub-air duct 221 or the air outlet end of the second sub-air duct 222 through controlled movement. Figure 6 The arrow in the middle shows the direction of air flow.

[0097] The refrigerator and control method thereof of the present invention can optimize the temperature regulation means of the refrigerator by arranging a heating air duct for introducing a heating air flow into the storage compartment in the refrigerator, arranging an electrolytic deoxidizer in the heating air duct, and determining the working state of the electrolytic deoxidizer and the on-off state of the heating air duct according to the internal environmental parameters of the storage compartment, so that the temperature of the storage compartment can be quickly increased by relying on the heat provided by the electrolytic deoxidizer, thereby meeting the user's usage requirements.

[0098] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A control method for a refrigerator, the refrigerator comprising a storage compartment and a heating air duct for introducing a heating air flow into the storage compartment, wherein an electrolytic deoxidation device is provided in the heating air duct for consuming oxygen in the storage compartment through an electrochemical reaction and providing heat to the heating air duct, and the control method include: Acquiring internal environmental parameters of a storage compartment of the refrigerator, wherein the internal environmental parameters of the storage compartment include a temperature and an oxygen concentration of the storage compartment; The working state of the electrolytic deoxidation device and the on / off state of the heating air duct are determined according to the internal environmental parameters of the storage compartment.

2. The control method according to claim 1, in, The step of determining the working state of the electrolytic deoxidation device and the on / off state of the heating air duct according to the temperature and oxygen concentration of the storage compartment comprises: Obtaining a set temperature and a set oxygen concentration of the storage compartment; Determining whether the difference between the temperature of the storage compartment and the set temperature is less than a preset first threshold and the oxygen concentration of the storage compartment is higher than the set oxygen concentration; If so, the electrolytic deoxidation device is started and connected to the heating air duct, so as to utilize the heat provided by the electrolytic deoxidation device to increase the temperature of the storage compartment and consume the oxygen concentration in the storage compartment.

3. The control method according to claim 2, in, The step of determining the working state of the electrolytic deoxidation 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 in the storage compartment is higher than the set oxygen concentration, the electrolytic deoxidation device is started and the heating air duct is turned off to consume the oxygen inside the storage compartment by using the electrolytic deoxidation device.

4. The control method according to claim 1 or 2, in, After the electrolytic deoxidation device is started and connected to the heating air duct, the method further includes: Obtaining a set operating time of the electrolytic deoxidation device; Determining whether the operation time of the electrolytic deoxidation device reaches the set operation time; If so, the electrolytic deoxidation device is turned off, and the heating air duct is shut down with a delay.

5. The control method according to claim 1, in, The refrigerator also has a refrigeration air duct for introducing refrigeration airflow into the storage compartment, and an evaporator is arranged in the refrigeration air duct for providing cold air to the refrigeration air duct; and the control method further includes: The working state of the evaporator and the on / off state of the refrigeration air duct are determined according to the internal environmental parameters of the storage compartment.

6. The control method according to claim 5, in, The step of determining the working state of the evaporator and the on / off state of the refrigeration air duct according to the temperature of the storage compartment comprises: Obtaining a set temperature of the storage compartment; Determining 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, the evaporator is started and the refrigeration air duct is connected to utilize the cold energy provided by the evaporator to reduce the temperature of the storage compartment.

7. The control method according to claim 6, in, After starting the evaporator and connecting the refrigeration air duct, the method further includes: The temperature of the storage compartment is detected, and when the temperature of the storage compartment reaches the set temperature, the evaporator is turned off, and the refrigeration air duct is turned off with a delay.

8. A refrigerator, include: A box body, wherein a storage compartment and a heating air duct for introducing a heating air flow into the storage compartment are formed inside the box body; An electrolytic deoxidation device is arranged in the heating air duct; A processor and a memory, wherein a machine executable program is stored in the memory, and when the machine executable program is executed by the processor, it is used to implement the control method according to any one of claims 1-7.

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