Refrigerator and control method thereof

Abstract

The embodiment of the invention relates to the technical field of refrigeration, in particular to a refrigerator and a control method thereof. According to the ion generator disclosed by the embodiment of the invention, the plasma is generated by arranging the opposite electrode group, so that the effect on the refrigerating chamber can be achieved, and the plasma can also decompose peculiar smell molecules to achieve a purification effect. The third electrode is arranged outside the area of the opposite electrode set and used for generating negative air ions, and the function of removing floating bacteria is achieved. According to the embodiment of the invention, the third electrode intermittently generates negative air ions, so that floating bacteria in the refrigeration chamber can be effectively adsorbed and settled in time, and the sterilization effect is achieved; and the influence on the use of the refrigerator due to black areas on the surface of the refrigerator caused by electrostatic dust collection due to excessive generation of negative air ions can be avoided. Power consumption of the refrigerator can be reduced, and energy is saved. And intermittent power supply for the third electrode is also beneficial to prolonging the service life of the third electrode.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of refrigeration technology, and in particular to a refrigerator and a control method thereof. Background Art

[0002] A refrigerator is a refrigeration device that keeps a constant low temperature, which can keep food or other items at a constant low temperature. When storing food in a refrigerator for a long time, the food will produce a variety of odors. When these odors are mixed, they are easy to produce odors, affecting the air environment of the refrigerator storage space. Therefore, more and more refrigerators are equipped with purification devices for deodorization.

[0003] In the related art, an ion generator is installed in a refrigerator, and the opposing electrodes of the ion generator are used to discharge and generate plasma, which has the function of removing attached bacteria and removing odors.

[0004] However, the ions generated by the existing ion generators are prone to electrostatic dust collection problems. Summary of the invention

[0005] The embodiment of the present application provides a refrigerator and a control method thereof, which can reduce the occurrence of electrostatic dust collection while ensuring the sterilization and deodorization effects.

[0006] In a first aspect, an embodiment of the present application provides a refrigerator, comprising:

[0007] A box body is constructed to form a refrigerated compartment with a take-in and put-out opening;

[0008] A door body, hinged to the box body, to open or close the access opening;

[0009] A refrigeration system, disposed in the box, for lowering the air temperature of the refrigerated compartment;

[0010] A refrigeration fan is installed on the box body; the refrigeration fan is configured to blow cold air passing through the evaporator of the refrigeration system into the refrigerated compartment;

[0011] An ion generator is installed in the box; the ion generator comprises:

[0012] At least one set of opposing electrodes, the opposing electrode set comprising a first electrode and a second electrode, the first electrode and the second electrode being arranged opposite to each other; the first electrode and the second electrode being used together to ionize air to generate plasma;

[0013] A third electrode, used for generating negative air ions; the third electrode is located outside the area between the first electrode and the second electrode;

[0014] A driving circuit board, electrically connected to the first electrode, the second electrode and the third electrode respectively;

[0015] A control device is electrically connected to the refrigeration fan and the driving circuit board, and the control device is configured as follows:

[0016] When the refrigeration fan is running, the driving circuit board is controlled to operate in a first sterilization mode; wherein the first sterilization mode is to control the driving circuit board to intermittently supply power to the third electrode.

[0017] The ion generator of the embodiment of the present application generates plasma by setting up an opposing electrode group, which can not only play a role in the cold storage compartment, but also decompose odor molecules to play a purification role. By setting a third electrode outside the area of ​​the opposing electrode group, it is used to generate negative air ions, and the negative air ions adsorb the floating bacteria in the cold storage compartment to play a role in removing the floating bacteria. The ion generator of the embodiment of the present application can generate both plasma and negative air ions. The two complement each other to improve the sterilization and deodorization effect of the cold storage compartment.

[0018] The third electrode of the embodiment of the present application intermittently generates negative air ions, which can timely and effectively adsorb and settle the floating bacteria in the cold storage room to achieve the effect of sterilization; it can also avoid excessive generation of negative air ions, which will cause black areas on the surface of the refrigerator due to electrostatic dust collection, affecting the use of the refrigerator. It can also reduce the power consumption of the refrigerator and save energy. Intermittent power supply to the third electrode also helps to extend the service life of the third electrode.

[0019] In the embodiment of the present application, when the refrigeration fan is running, cold air enters the cold storage compartment through the air supply duct and the air supply port. At this time, the third electrode is intermittently powered to generate negative air ions, which quickly enter the cold storage compartment along with the cold air, thereby increasing the residence time of the negative air ions in the air supply duct and reducing the probability of electrostatic dust collection in the duct structure; as the cold air flows in the cold storage compartment, the negative air ions diffuse in the cold storage compartment, which helps to electrostatically adsorb and sterilize the entire cold storage compartment, thereby improving the sterilization effect.

[0020] In some embodiments of the present application, the control device is further configured to:

[0021] When the refrigeration fan is running, the driving circuit board is controlled to operate in a second sterilization mode; wherein, the second sterilization mode is to control the driving circuit board to intermittently power the first electrode and the second electrode; and the voltage value between the first electrode and the second electrode is a first voltage value.

[0022] When the refrigeration fan is running, the first sterilization mode and the second sterilization mode are running at the same time to improve the sterilization effect. The first electrode and the second electrode are intermittently powered, so that the first electrode and the second electrode intermittently generate plasma, which can not only allow the plasma to quickly enter the refrigerated compartment to sterilize the refrigerated compartment, but also help to extend the service life of the first electrode and the second electrode; and can avoid excessive generation of plasma and unnecessary energy waste.

[0023] In some embodiments of the present application, the control device is further configured to:

[0024] When the refrigeration fan is turned off and the door is closed, the driving circuit board is controlled to operate in a second sterilization mode; wherein, the second sterilization mode is to control the driving circuit board to intermittently power the first electrode and the second electrode; and the voltage value between the first electrode and the second electrode is a first voltage value.

[0025] After the first sterilization mode ends, the second sterilization mode is run. In this way, the negative air ions generated by the first sterilization mode can electrostatically adsorb and settle the airborne bacteria, and at least part of the airborne bacteria will be settled while sterilizing; the second sterilization mode is run after the first sterilization mode, and can also be used to treat the particles and bacteria settled by the negative air ions, which helps to further improve the sterilization effect.

[0026] In some embodiments of the present application, the second sterilization mode is to control the driving circuit board to intermittently power the first electrode and the second electrode according to a preset first duty cycle, and run a first preset number of cycles;

[0027] The first duty cycle is a ratio of a power supply duration of the first electrode and the second electrode to a first cycle duration, and the first cycle duration is a sum of a power supply duration and a power-off duration of the first electrode and the second electrode.

[0028] In the embodiment of the present application, the first electrode and the second electrode operate intermittently, generate plasma intermittently, and sterilize the refrigerated compartment. After the first preset number of cycles are run, the second sterilization mode is turned off, which can sterilize the refrigerated compartment and reduce the power consumption of the refrigerator to save electricity.

[0029] In some embodiments of the present application, the opposing electrode group is provided with a plurality of electrodes; the control device is further configured to:

[0030] When the door is closed, the driving circuit board is controlled to operate in a clean odor mode; wherein, the clean odor mode includes controlling the driving circuit board to intermittently power the first electrode and the second electrode of at least one of the opposing electrode groups; wherein, the voltage value between the first electrode and the second electrode is a second voltage value, and the second voltage value is less than the first voltage value.

[0031] In an embodiment of the present application, the control device is configured to control the driving circuit board to execute the deodorizing mode for at least one of the opposing electrode groups, so that the ion generator runs the sterilization mode at the same time, which helps to improve the sterilization and deodorizing effects of the refrigerator.

[0032] In some embodiments of the present application, the control device is further configured to:

[0033] In an odd number of operation cycles, controlling the driving circuit board to operate in the first sterilization mode and / or the second sterilization mode;

[0034] In an even-numbered operation cycle and when the door is closed, the driving circuit board is controlled to operate in a clean odor mode; wherein the clean odor mode includes controlling the driving circuit board to intermittently supply power to the first electrode and the second electrode; wherein the voltage value between the first electrode and the second electrode is a second voltage value, and the second voltage value is less than the first voltage value;

[0035] The operation cycle includes a first time period and a second time period, the first time period is a time period when the refrigeration fan is running, and the second time period is a time period when the refrigeration fan is turned off.

[0036] In the embodiment of the present application, the sterilization mode (including the first sterilization mode and the second sterilization mode) of the ion generator is alternately performed with the purification mode, so that the negative air ions and plasma can continuously act on the surface and air of the refrigerated compartment, which is conducive to providing continuous sterilization and deodorization effects. Moreover, the alternating operation mode can reduce the operating load of the ion generator, which helps to extend the service life of the ion generator.

[0037] In some embodiments of the present application, the odor-free mode includes controlling the driving circuit board to intermittently power the first electrode and the second electrode according to a preset second duty cycle, and running a second preset number of cycles;

[0038] The second duty cycle is a ratio of a power supply duration of the first electrode and the second electrode to a second cycle duration, and the second cycle duration is a sum of a power supply duration and a power-off duration of the first electrode and the second electrode.

[0039] In the embodiment of the present application, the first electrode and the second electrode operate intermittently, generate plasma intermittently, and purify the refrigerated compartment. After the second preset number of cycles, the purifying mode is turned off, which can not only purify the refrigerated compartment, but also reduce the power consumption of the refrigerator and save electricity.

[0040] In some embodiments of the present application, the refrigerator further comprises an air duct structure, wherein the air duct structure is configured to form a return air port and a return air duct, and the return air duct is connected to the refrigerating compartment through the return air port;

[0041] A light source and a light intensity sensor are provided at one end of the return air duct close to the return air outlet, and the light source and the light intensity sensor are respectively located on both sides of the return air duct perpendicular to the extension direction; the light source provides light for the return air duct; the light intensity sensor is used to detect the light intensity value of the return air duct;

[0042] The control device is electrically connected to the light source and the light intensity sensor respectively, and the control device is further configured as follows:

[0043] When the cooling fan is turned off, controlling the light source to turn on;

[0044] Acquiring the light intensity value of the return air duct by means of the light intensity sensor;

[0045] When the light intensity value meets the set condition, controlling the driving circuit board to operate according to the first sterilization mode;

[0046] The setting conditions include at least one of the following:

[0047] The light intensity value is less than a preset light intensity threshold; the light intensity value is continuously acquired a preset number of times every preset monitoring time, and the light intensity values ​​of the preset number of times show a downward trend.

[0048] In the embodiment of the present application, a light source and a light intensity sensor are arranged at one end of the return air duct near the return air outlet to determine the light intensity value of the return air duct, thereby judging the air cleanliness of the refrigerated compartment when the refrigeration fan is turned off, and then judging the floating bacteria in the refrigerated compartment. When the light intensity value is less than a preset light intensity threshold, and / or the light intensity values ​​detected multiple times show a downward trend, the control driving circuit board is operated in the first sterilization mode to perform sterilization in a timely manner.

[0049] In some embodiments of the present application, the control device is configured as follows:

[0050] When the refrigeration fan is running, if the door is opened, controlling the driving circuit board to suspend the first sterilization mode;

[0051] When the door body is closed and the closing time of the door body reaches a preset first time length, the driving circuit board is controlled to continue to operate in the first sterilization mode until the refrigeration fan is turned off.

[0052] Thus, when the door is opened, the refrigerated compartment is connected to the atmosphere, and the first sterilization mode is suspended to avoid the waste of negative air ions. Since the refrigeration fan is turned off when the door is opened, the first sterilization mode is suspended to avoid the negative air ions staying in the air supply duct for too long, which may easily cause electrostatic dust collection.

[0053] When the door is closed, the air in the refrigerated room is unstable, and the first sterilization mode is immediately started, and the sterilization effect is limited. Therefore, after the door is closed and the preset first time period is reached, the air environment in the refrigerated room is stable, and the first sterilization mode is continued to be operated to sterilize the refrigerated room.

[0054] In some embodiments of the present application, the ion generator further comprises a housing member, the housing member is structured to form a receiving cavity and a communicating port, the receiving cavity is communicated with the refrigerating compartment through the communicating port;

[0055] The counter electrode and the driving circuit board are both installed in the accommodating cavity;

[0056] The outer surface of the shell member facing away from the accommodating cavity is configured to form a recessed portion, and the recessed portion forms a through structure;

[0057] Part of the third electrode is located in the accommodating cavity, and the third electrode is exposed to the outer shell component through the through structure.

[0058] In the embodiment of the present application, a recessed portion is formed on the outer side of the housing member to accommodate the exposed portion of the third electrode, and the other end of the third electrode does not protrude from the outer surface of the housing member, thereby preventing the exposed portion of the third electrode from being damaged by collision, thereby protecting the exposed portion of the third electrode. The through structure provided in the recessed portion is used to fix the third electrode and ensure the stable position of the third electrode.

[0059] In a second aspect, an embodiment of the present application provides a method for controlling a refrigerator, the refrigerator comprising:

[0060] A box body is constructed to form a refrigerated compartment with a take-in and put-out opening;

[0061] A door body, hinged to the box body, to open or close the access opening;

[0062] A refrigeration system, disposed in the box, for lowering the air temperature of the refrigerated compartment;

[0063] A refrigeration fan is installed on the box body; the refrigeration fan is configured to blow cold air passing through the evaporator of the refrigeration system into the refrigerated compartment;

[0064] An ion generator is installed in the box; the ion generator comprises:

[0065] At least one set of opposing electrodes, the opposing electrode set comprising a first electrode and a second electrode, the first electrode and the second electrode being arranged opposite to each other; the first electrode and the second electrode being used together to ionize air to generate plasma;

[0066] A third electrode, used for generating negative air ions; the third electrode is located outside the area between the first electrode and the second electrode;

[0067] A driving circuit board, electrically connected to the first electrode, the second electrode and the third electrode respectively;

[0068] A control device, electrically connected to the refrigeration fan and the driving circuit board respectively;

[0069] The control method comprises:

[0070] When the refrigeration fan is running, the driving circuit board is controlled to operate in a first sterilization mode; wherein the first sterilization mode is to control the driving circuit board to intermittently supply power to the third electrode.

[0071] The ion generator of the embodiment of the present application generates plasma by setting up an opposing electrode group, which can not only play a role in the cold storage compartment, but also decompose odor molecules to play a purification role. By setting a third electrode outside the area of ​​the opposing electrode group, it is used to generate negative air ions, and the negative air ions adsorb the floating bacteria in the cold storage compartment to play a role in removing the floating bacteria. The ion generator of the embodiment of the present application can generate both plasma and negative air ions. The two complement each other to improve the sterilization and deodorization effect of the cold storage compartment.

[0072] The third electrode of the embodiment of the present application intermittently generates negative air ions, which can timely and effectively adsorb and settle the floating bacteria in the cold storage room to achieve the effect of sterilization; it can also avoid excessive generation of negative air ions, which will cause black areas on the surface of the refrigerator due to electrostatic dust collection, affecting the use of the refrigerator. It can also reduce the power consumption of the refrigerator and save energy. Intermittent power supply to the third electrode also helps to extend the service life of the third electrode.

[0073] In the embodiment of the present application, when the refrigeration fan is running, cold air enters the cold storage compartment through the air supply duct and the air supply port. At this time, the third electrode is intermittently powered to generate negative air ions, which quickly enter the cold storage compartment along with the cold air, thereby increasing the residence time of the negative air ions in the air supply duct and reducing the probability of electrostatic dust collection in the duct structure; as the cold air flows in the cold storage compartment, the negative air ions diffuse in the cold storage compartment, which helps to electrostatically adsorb and sterilize the entire cold storage compartment, thereby improving the sterilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0075] Figure 1 A schematic diagram of the structure of a refrigerator provided in an embodiment of the present application;

[0076] Figure 2 An exploded view of the box, air duct structure and ion generator provided in the embodiment of the present application;

[0077] Figure 3 An exploded view of the box, air duct structure and ion generator provided in the embodiment of the present application;

[0078] Figure 4 An exploded view of the air duct structure and the ion generator provided in the embodiment of the present application;

[0079] Figure 5 A rear view of the box, air duct structure and ion generator provided in the embodiment of the present application;

[0080] Figure 6 for Figure 5 AA section view in;

[0081] Figure 7 for Figure 6 An enlarged schematic diagram of the P region in FIG.

[0082] Figure 8 A rear view of the air duct structure and the ion generator provided in the embodiment of the present application;

[0083] Fig. 9 A rear view of a housing member provided in an embodiment of the present application;

[0084] Fig.10 for Fig. 9 BB section view in;

[0085] Fig.11An exploded view of a housing component provided in an embodiment of the present application;

[0086] Fig.12 A schematic diagram of the structure of the ion generator removal cover provided in an embodiment of the present application;

[0087] Fig.13 for Fig.12 Exploded view of the structure;

[0088] Fig.14 A front view of a housing portion provided in an embodiment of the present application;

[0089] Fig.15 for Fig.12 Front view of the structure.

[0090] Description of reference numerals:

[0091] 10: box body; 11: refrigerated compartment; 12: box liner; 13: rear cavity wall; 14: recessed structure; 20: door body; 30: ion generator;

[0092] 100: housing member; 101: accommodating cavity; 102: communicating port; 1021: first through hole; 1022: second through hole; 103: recessed portion; 104: through structure; 110: fixing member; 120: reinforcing member; 130: first side plate; 131: convex edge; 140: second side plate; 150: third side plate; 160: housing portion; 161: partition plate; 162: fixing groove; 163: limiting plate; 170: cover plate portion; 171: second buckle;

[0093] 200: opposing electrode group; 210: first electrode; 220: second electrode;

[0094] 300: third electrode;

[0095] 400: driving circuit board;

[0096] 500: air duct structure; 501: air supply outlet; 502: air supply duct; 5021: first section of air duct; 5022: second section of air duct; 503: mounting slot; 504: wiring slot; 505: return air duct; 506: return air outlet; 510: air duct component; 511: boss; 520: air duct cover; 521: first buckle. DETAILED DESCRIPTION

[0097] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0098] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0099] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.

[0100] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0101] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0102] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0103] When storing food in a refrigerator, a lot of odors will be generated, especially the rotten and unpleasant smell of stale and spoiled food. When these odors are mixed, they are easy to produce odors, affecting the air environment of the refrigerator storage space, and then affecting the storage of other items. More importantly, rotten and spoiled food will breed a large number of bacteria, resulting in the user's food safety cannot be guaranteed. The unpleasant smell in the storage space after opening the refrigerator door seriously affects the user's experience.

[0104] In the related art, an ion generator is arranged in a refrigerator, and two opposing electrodes of the ion generator discharge high voltage, and the gas between the two opposing electrodes is ionized to form plasma, which plays a role in removing attached bacteria and removing odor.

[0105] However, microorganisms can also use fine dust particles, aerosols, etc. as carriers to suspend in the air, forming airborne bacteria, and move with the air circulation. For airborne bacteria, experiments have shown that it is difficult for existing ion generators to achieve a high removal efficiency in a short period of time, and the removal effect is poor. For example, the removal rate of the ion generator in the related art in a 400L container for 40 minutes cannot reach more than 99%. The main reason is that the concentration of negative ions generated by the existing ion generator is not high enough. For example, the concentration of negative ions generated by the ion generator in the related art is less than 500,000 / cm3.

[0106] Among them, there are many technologies for removing planktonic bacteria in the air, such as filtration, heating, radiation, chemicals, electrostatic adsorption, etc.

[0107] Filtration is an effective method to remove microorganisms in the air. Microorganisms and dust particles in the air are captured by high-efficiency filters, and due to the lack of living conditions, microorganisms cannot survive and reproduce.

[0108] Heating method: Spores suspended in the air can be killed by keeping them at 218°C for 24 seconds. This method is suitable for killing microorganisms in high temperature environments.

[0109] Radiation method: using radiation energy to kill microorganisms in the air. This method is effective under specific conditions, but the radiation dose needs to be strictly controlled to avoid harm to the environment and human body.

[0110] Chemical method: Use chemicals such as peracetic acid and hydrogen peroxide complex or hydrogen peroxide silver ion and other disinfectants. These chemicals can effectively kill various microorganisms including bacterial spores.

[0111] Electrostatic adsorption method: It can effectively remove airborne bacteria by adsorbing microorganisms and particulate matter in the air through electrostatic action. Negative ion generators can produce a large concentration of negative ions, for example, a concentration of more than 2 million / cm3, or even more than 5 million / cm3. Negative ions can be negatively charged oxygen molecules, which can combine with positively charged dust and microorganisms to achieve effective sedimentation of airborne bacteria.

[0112] To this end, the researchers of this application took into account the characteristics of the refrigerator and used a negative ion generator to generate negative ions to improve the removal of floating bacteria and enhance the odor removal effect of the refrigerator.

[0113] Among them, in order to ensure the existing deodorizing effect, the researchers of this application added a third electrode on the basis of setting two opposing electrodes in the ion generator. A negative voltage was applied to the third electrode, and a large number of electrons were released at the third electrode. The electrons attached to the oxygen molecules in the air to form a large number of negative air ions, which adsorbed and precipitated the floating bacteria in the refrigerator, thereby improving the deodorizing and sterilization effects.

[0114] Furthermore, by intermittently supplying power to the third electrode, the third electrode can intermittently provide negative air ions, which can not only effectively remove floating bacteria, but also reduce the electrostatic dust collection problem caused by continuous power supply to the third electrode.

[0115] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0116] Combination Figure 1 Some embodiments of the present application provide a refrigerator, which includes a box body 10. The box body 10 can be constructed to form a storage compartment with a take-in and put-out opening for storing items.

[0117] A plurality of storage compartments may be provided to expand the storage space. According to different storage temperatures of the storage compartments, the storage compartments may include at least one refrigerating compartment 11 and at least one freezing compartment. The internal temperature of the refrigerating compartment 11 may be maintained between about 0°C and 5°C to store items in a refrigerated mode; the internal temperature of the freezing compartment may be maintained between about -30°C and 0°C to store items in a frozen mode.

[0118] In some possible implementations, at least one storage compartment may also be configured as a vacuum chamber or a temperature-changing chamber, etc., which will not be described in detail in the embodiments of the present application.

[0119] Exemplarily, two storage compartments may be provided, and the two storage compartments may be stacked in a vertical direction; the two storage compartments may be arranged side by side in a horizontal direction. One of them may be provided as a refrigerating compartment 11, and the other may be provided as a freezing compartment.

[0120] In some embodiments, in combination Figure 1 and Figure 2 The box body 10 may include a box liner 12 and a box shell. The box liner 12 may be configured to form a storage compartment with a front opening. The box shell may be connected to the outside of the box liner 12 to form the appearance of the refrigerator.

[0121] The box body 10 may further include a box heat insulation layer, which may be disposed between the box liner 12 and the box shell. The box heat insulation layer can insulate the storage compartment to minimize heat exchange between the storage compartment and the outside of the refrigerator, which is beneficial to ensuring the refrigeration effect of the refrigerator.

[0122] The refrigerator of the embodiment of the present application may further include a refrigeration system, which is used to reduce the air temperature of the storage compartment. Exemplarily, the refrigeration system may be arranged in the cabinet 10. The refrigeration system may include a compressor, a condenser, a throttle and an evaporator connected in a cycle.

[0123] When the refrigeration system is running, the compressor compresses the refrigerant vapor to generate high-temperature and high-pressure refrigerant vapor, and transports the refrigerant vapor to the condenser. The condenser liquefies the high-temperature and high-pressure refrigerant vapor to generate high-temperature and low-pressure refrigerant liquid, and transports it to the throttle. The throttle reduces the pressure of the refrigerant liquid, converting the high-pressure and low-temperature refrigerant liquid into low-pressure and low-temperature refrigerant liquid, and transports it to the evaporator. After receiving the low-pressure and low-temperature refrigerant liquid, the evaporator makes it boil under isobaric conditions, absorbs heat and vaporizes to form refrigerant vapor, thereby reducing the temperature in the storage room.

[0124] Continue to refer to Figure 1 The refrigerator of the embodiment of the present application may further include a door body 20, which is rotatably connected to the cabinet 10 to open or close the storage compartment. Exemplarily, the door body 20 is hinged to the cabinet 10.

[0125] Each storage compartment may be provided with a corresponding door body 20; or, each storage compartment may be provided with two door bodies 20, and the two door bodies 20 may rotate in opposite directions to open or close the storage compartment.

[0126] Of course, in some possible implementations, a drawer is provided inside the storage room, and the outer end of the drawer is configured to form a door body 20 .

[0127] In some embodiments, the door body 20 may include a door liner. When the door body 20 closes the refrigerating compartment 11 , the door liner faces the refrigerating compartment 11 .

[0128] The door body 20 may include: a door outer shell; the door outer shell may be connected to the outer side of the door liner to form the appearance of the door body 20. The door outer shell may be rotatably connected to the cabinet 10 so that the door body 20 opens or closes the refrigerating compartment 11.

[0129] The door body 20 may further include a door heat insulation member, which may be disposed in the space between the door liner and the door outer shell. The door heat insulation member can insulate the storage compartment to minimize heat exchange between the storage compartment and the outside of the refrigerator, which is beneficial to ensuring the refrigeration effect of the refrigerator. The door heat insulation member may be a foam layer.

[0130] In some embodiments, a door shelf is provided on one side of the door body 20 facing the refrigerating compartment 11 to increase the storage space of the refrigerator. The door shelf has a storage cavity opening upward to store items.

[0131] The refrigerator of the embodiment of the present application may further include an ion generator 30 , which is installed on the cabinet 10 and is configured to generate air ions to purify and sterilize the air.

[0132] In some embodiments, the ion generator 30 is configured to generate plasma, which is a state of matter containing a large number of high-energy particles, including electrons, ions, free radicals and excited molecules. These active particles can react with bacteria and odor molecules to achieve a deodorizing effect.

[0133] Active oxygen (such as ozone) generated in plasma 3 , single atomic oxygen (O) and hydroxyl free radicals (-OH) have strong oxidizing ability. These active substances can destroy the cell wall and cell membrane of bacteria, causing the bacteria to lose activity or die, thus playing a sterilizing role.

[0134] The odor in the refrigerator is usually composed of volatile organic compounds (VOCs) and other odor molecules. The active oxygen and free radicals in the plasma can react with these molecules to decompose them into odorless small molecules or harmless substances such as carbon dioxide and water.

[0135] In some embodiments, the ion generator 30 is also configured to generate negative air ions, which carry a negative charge, and bacteria, viruses, dust, etc. in the air carry a positive or neutral charge. Due to electrostatic effects, negative air ions can be adsorbed on the surface of bacteria, changing the charge balance of the bacteria. This adsorption can cause bacteria to aggregate, making it easier to condense and settle, thereby achieving the purpose of reducing fine particles such as bacteria, viruses, and dust in the air. Among them, negative oxygen ions have high chemical activity and can react with molecules on the bacterial cell wall to undergo oxidation. This oxidation reaction can destroy the cell wall and cell membrane of the bacteria, causing the bacteria to lose activity or die.

[0136] In some embodiments, the ion generator 30 may be installed in the cold storage compartment 11, which facilitates the direct entry of plasma and negative air ions into the cold storage compartment 11. The paths of the plasma and negative air ions are short, which is beneficial to improving the sterilization and purification rates.

[0137] In other embodiments, the ion generator 30 may also be installed in the space between the box 12 and the box shell to avoid the ion generator 30 occupying the storage space in the refrigerated compartment 11 .

[0138] Combination Figure 2 and Figure 3In some embodiments of the present application, the refrigerator further includes an air duct structure 500 installed in the refrigerating compartment 11 , the air duct structure 500 is configured to form an air supply port 501 , and the air supply port 501 is used to supply cold air toward the refrigerating compartment 11 .

[0139] The air duct structure 500 and the rear cavity wall 13 of the refrigerating compartment 11 together enclose an air supply duct 502, and the air supply duct 502 is connected to the air supply port 501; the air supply duct 502 is constructed to guide the cold air passing through the evaporator of the refrigeration system into the refrigerating compartment 11 through the air supply port 501 to reduce the air temperature of the refrigerating compartment 11.

[0140] In some embodiments, the ion generator 30 can be installed on the air duct structure 500. The ion generator 30 is first installed on the air duct structure 500, and then the air duct structure 500 is installed in the box 12, so that the installation of the ion generator 30 is convenient.

[0141] The plasma and negative air ions generated by the ion generator 30 can enter the refrigerated compartment 11 through the air supply duct 502 and the air supply port 501 to achieve the effects of sterilization and deodorization.

[0142] The ion generator 30 is located at the side of the air supply duct 502 , that is, the ion generator 30 is not located in the air supply duct 502 , so as to avoid increasing the air supply resistance and affecting the air supply rate of the refrigerating compartment 11 .

[0143] In some embodiments, the air duct structure 500 is further configured to form a return air port 506 and a return air duct 505, and the return air duct 505 is connected to the refrigerating compartment 11 through the return air port 506; the return air duct 505 is configured to return the air of the refrigerating compartment 11 to the chamber where the evaporator is located.

[0144] In some embodiments, the return air inlet 506 is located below the supply air inlet 501, and the supply air inlet 501 arranged above is conducive to the sinking of cold air, thereby improving the uniformity of temperature in the refrigerated compartment 11; the return air inlet 506 is located below, which is conducive to shortening the return air path and improving the circulation efficiency of cold air between the chamber where the evaporator is located and the refrigerated compartment 11.

[0145] In some possible implementations of the present application, the refrigerator may further include a refrigeration fan, which is installed in the box body 10. Exemplarily, the refrigeration fan is installed in the air duct of the refrigerator. The refrigeration fan is configured to blow cold air that has passed through the evaporator of the refrigeration system into the refrigerated compartment 11 at intervals. Specifically, under the action of the refrigeration fan, the cold air that has passed through the evaporator of the refrigeration system enters the refrigerated compartment 11 via the air supply duct 502 and the air supply port 501, and then returns to the evaporator via the return air port 506 and the return air duct 505, and so on, and the air temperature of the refrigerated compartment 11 is reduced.

[0146] In some embodiments of the present application, the air duct structure 500 includes an air duct component 510 , which is recessed to form an air duct groove, and the air duct groove faces the rear cavity wall 13 of the box 12 ; the air duct component 510 and the rear cavity wall 13 are enclosed to form an air supply duct 502 .

[0147] Exemplarily, the air duct member 510 is a foam board, which can not only form the air supply duct 502 but also has heat insulation and thermal insulation properties.

[0148] The air duct structure 500 may further include an air duct cover plate 520, which is fixed to the side of the air duct component 510 away from the rear cavity wall 13, and plays a role in shielding and protecting the air duct component 510. The air duct cover plate 520 and the air duct component 510 can be snap-connected, and the connection method is stable and reliable.

[0149] The air supply port 501 is an opening provided on the air duct cover plate 520 and the air duct member 510 , and the air return port 506 may be an opening provided on the air duct cover plate 520 .

[0150] Combination Figure 4 The air duct member 510 of the air duct structure 500 is configured to form a mounting groove 503, and the notch of the mounting groove 503 faces the rear wall 13 of the refrigerating compartment 11. The ion generator 30 is installed in the mounting groove 503, and such a configuration can reduce the installation space occupied by the ion generator 30 in the thickness direction of the refrigerator.

[0151] Exemplarily, the ion generator 30 is interference-fitted into the mounting groove 503 , and the connection method is simple.

[0152] Exemplarily, the ion generator 30 is snap-connected with the air duct cover 520 , and the connection method is stable.

[0153] Continue to refer to Figure 3 and Figure 4 In some embodiments of the present application, a wiring groove 504 is also formed on the air duct member 510, and the wiring groove 504 is connected to the installation groove 503. The wiring groove 504 is used to arrange cables, and the cables may include power supply cables for powering the ion generator 30, and the cables may also include signal cables for communication connection between the ion generator 30 and the control device of the refrigerator.

[0154] By constructing the wiring groove 504 on the air duct component 510, the cables of the ion generator 30 are restricted and fixed, which is beneficial to improve the reliability of the installation of the ion generator 30.

[0155] Combination Figure 3 and Figure 5In some possible implementations, a portion of the rear cavity wall 13 is convex away from the ion generator 30 toward the rear side of the box 12, and a recessed portion 103 is formed on the front side of the rear cavity wall 13; accordingly, the recessed portion 103 is a convex structure on the rear side of the rear side wall. The recessed structure portion 14 is opposite to the ion generator 30, providing an installation space for the ion generator 30.

[0156] In some implementations, combined with Figure 6 and Figure 7 , the depth direction of the refrigerator (corresponding to Figure 6 There is a gap in the ion generator 30 (in the Y-axis direction), and the gap is connected to the air supply duct 502. In addition, a communication port is provided on the side of the ion generator 30 facing the recessed structure portion 14 to connect the inside and outside of the ion generator 30, so that the plasma inside the ion generator 30 can enter the gap through the communication port, and enter the refrigerated compartment 11 through the gap and the air supply duct 502. The provision of the recessed structure portion 14 can ensure that there is a sufficient gap between the ion generator 30 and the rear cavity wall 13, so that the plasma can be discharged.

[0157] Of course, the recessed structure 14 allows a sufficient gap between the ion generator 30 and the rear cavity wall 13 , providing space for some exposed electrodes of the ion generator 30 , thereby preventing the electrodes from contacting the rear cavity wall 13 and affecting discharge.

[0158] In some embodiments, the ion generator 30 and the air supply duct 502 are spaced on all sides in the vertical plane; a guide groove can be provided on the air duct member 510 so that the gap is connected to the air supply duct 502 through the guide groove. In this way, the ion generator 30 is located in the air duct member 510 on all sides in the vertical plane, which is conducive to improving the stability of the installation of the ion generator 30. The vertical plane is the width direction of the refrigerator (corresponding to Figure 8 X-axis direction) and height direction (corresponding to Figure 8 The plane determined by the Z-axis direction.

[0159] In other embodiments, one side of the ion generator 30 in the vertical plane is exposed in the air supply duct 502. Figure 8 As shown, the right side of the ion generator 30 is exposed in the air supply duct 502, which is conducive to the rapid entry of the plasma in the ion generator 30 into the air supply duct 502 and shortens the distance for the plasma to enter the air supply duct 502. Figure 4 The mounting groove 503 is arranged along the width direction of the refrigerator (corresponding to Figure 4 An opening is provided on one side (in the X-axis direction), and the mounting groove 503 is connected to the air supply duct 502 through the opening; the ion generator 30 is exposed in the air supply duct 502 through the opening.

[0160] Continue to refer to Figure 8 In some embodiments, the air supply duct 502 includes a first section duct 5021 and a second section duct 5022 that are connected to each other. The first section duct 5021 is located below the second section duct 5022. The bottom end of the first section duct 5021 is used to communicate with the chamber where the evaporator is located, and the second section duct 5022 is connected to the air supply port 501. There may be two second section ducts 5022, which are arranged at intervals along the width direction of the refrigerator. In this way, the two second section ducts 5022 are respectively connected to the air supply port 501, providing a layout space for the arrangement of multiple air supply ports 501, which helps to improve the efficiency of air supply.

[0161] A boss 511 is formed between the two second sections of the air duct 5022, and the boss 511 forms a mounting groove 503 for mounting the ion generator 30. Figure 8 In the embodiment, an opening is provided on the right side of the mounting groove 503 to communicate with the second section of the air duct 5022 on the right side. Of course, an opening may also be provided on the left side of the mounting groove 503 to communicate with the second section of the air duct 5022 on the left side. In this arrangement, the wind resistance of the air supply duct 502 is not increased, and the ion generator 30 is close to the air supply port 501, so that the ions generated by the ion generator 30 have a shorter path in the air supply duct 502, and can enter the refrigerated compartment 11 more quickly, achieving the effect of purification and sterilization.

[0162] In some implementations, if there is sufficient installation space, the ion generator 30 can also be installed on the left side of the second section of the air duct 5022 on the left side, or on the right side of the second section of the air duct 5022 on the right side. In other words, the ion generator 30 can also be installed on the edges of both sides of the air duct member 510 along the width direction of the refrigerator.

[0163] The structure and function of the ion generator 30 in the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0164] Combination Fig. 9 and Fig.10 The ion generator 30 may include: a housing member 100 , wherein the housing member 100 is configured to form a receiving chamber 101 and a communicating port 102 , and the receiving chamber 101 is communicated with the refrigerating chamber 11 through the communicating port 102 .

[0165] The housing member 100 is installed on the air duct structure 500 and close to one end of the air outlet 501 , so that the ion generator 30 is installed on the air duct structure 500 and close to one end of the air outlet 501 , which helps ions to quickly enter the refrigerated compartment 11 .

[0166] The accommodating chamber 101 is in communication with the air supply duct 502 through the communicating port 102 , so that the ions generated by the ion generator 30 can enter the air supply duct 502 through the communicating port 102 , and then enter the refrigerating chamber 11 through the air supply duct 502 .

[0167] When the mounting groove 503 is formed on the air duct member 510 , the housing member 100 is received in the mounting groove 503 and engaged with the air duct structure 500 , so that the ion generator 30 is mounted on the air duct structure 500 .

[0168] Combination Figure 7 In some embodiments, a first buckle 521 is formed on the air duct cover plate 520, and the first buckle 521 is engaged with the housing member 100. In this way, there is no need to form a complex connection structure on the housing member 100, which is conducive to reducing the volume occupied by the housing member 100 during installation.

[0169] In some embodiments, there is a gap between the outer shell member 100 and the rear cavity wall 13 of the refrigerating chamber 11, which is conducive to the plasma in the accommodating cavity 101 entering the air supply duct 502 through the connecting port 102 and the gap.

[0170] Exemplarily, a ridge 131 is provided on one side of the shell member 100 facing the rear cavity wall 13, which not only ensures that there is a gap between the side of the shell member 100 facing the rear cavity wall 13 and the rear cavity wall 13, but also helps to improve the structural strength of the shell member 100. The ridge 131 can be provided at the corner of the shell member 100, and the ridge 131 can be L-shaped, which is more conducive to improving the structural strength of the shell member 100. In addition, the provision of the ridge 131 can also prevent the exposed electrode from colliding with the rear cavity wall 13.

[0171] When an opening is provided at one side of the mounting groove 503 along the width direction of the refrigerator, a portion of the housing member 100 is exposed to the air supply duct 502 through the opening.

[0172] In some embodiments of the present application, the outer shell component 100 is flat and arranged parallel to the vertical plane, which can reduce the size occupied by the outer shell component 100 in the depth direction of the refrigerator.

[0173] Combination Fig. 9 and Fig.10 In some embodiments of the present application, the housing member 100 is a rectangular parallelepiped shell. The housing member 100 has a first size L1, a second size L2, and a third size L3. The first size L1 is the size of the housing member 100 along the first direction D1, the second size L2 is the size of the housing member 100 along the second direction D2, and the third size L3 is the size of the housing member 100 along the third direction D3. The first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other.

[0174] The first dimension L1 of the housing member 100 is smaller than the second dimension L2, and the first dimension L1 is smaller than the third dimension L3, so that the first dimension L1 of the housing member 100 is small.

[0175] Combined with the diagram, Figure 4 , Figure 7 as well as Figure 8 When the housing member 100 is installed in the installation groove 503, the first direction D1 is parallel to the depth direction of the refrigerator. Since the first dimension L1 is small, such installation is beneficial to reducing the installation space occupied by the ion generator 30 in the depth direction of the refrigerator.

[0176] The second direction D2 may be parallel to the height direction of the refrigerator, and the second dimension L2 is greater than the third dimension L3. One side of the housing member 100 along the third direction is exposed to the air supply duct 502 through the opening, so that the longer side of the housing member 100 is exposed to the air supply duct 502, which is conducive to ensuring the diffusion rate of ions.

[0177] The third dimension L3 is relatively small, and the third direction is parallel to the width direction of the refrigerator, so that the ion generator 30 has a relatively small size in the width direction of the refrigerator, which is conducive to installing the housing component 100 on the narrow boss 511.

[0178] Recombination Fig. 9 and Fig.10 In some embodiments of the present application, the housing member 100 includes two first side plates 130, which are opposite to each other along the first direction and have a gap. The two first side plates 130 are parallel to the plane defined by the second direction and the third direction. The dimensions of the two first side plates 130 along the second direction and the dimensions along the third direction are both greater than the gap between the two first side plates 130 along the first direction. Fig.11 As shown, a ridge 131 is formed on one of the first side plates 130 .

[0179] The housing member 100 may further include two second side plates 140, which are opposite to each other and spaced apart along the second direction. The two second side plates 140 are respectively connected to two ends of the two first side plates 130 along the second direction. The two second side plates 140 may be parallel to a plane defined by the first direction and the third direction.

[0180] Combination Fig.11 The housing member 100 may further include two third side panels 150, which are opposite to each other and spaced apart along the third direction. The two third side panels 150 are respectively connected to both ends of the two first side panels 130 along the third direction. The two third side panels 150 may be parallel to the plane defined by the first direction and the second direction.

[0181] In this way, the two first side plates 130 , the two second side plates 140 and the two third side plates 150 enclose a rectangular outer shell component 100 , which has a regular structure and is easy to process and install.

[0182] At least one of the two first side panels 130, the two second side panels 140, and the two third side panels 150 is provided with a communication port 102. The communication port 102 may face the gap between the housing member 100 and the rear cavity wall 13, and the communication port 102 may also face the opening of the mounting groove 503, so that the communication port 102 is connected with the air supply duct 502.

[0183] Continue to refer to Fig.11 In some possible implementations of the present application, the housing member 100 may include a shell portion 160 and a cover portion 170 , the shell portion 160 is configured to form a recessed chamber, and the cover portion 170 is covered on the shell portion 160 to form a accommodating cavity 101 .

[0184] The housing portion 160 and the cover portion 170 can be snap-connected, and the connection method is simple and reliable. Fig.10 A second buckle 171 is formed on the cover portion 170 , a slot is formed on the shell portion 160 , and the second buckle 171 is snapped into the slot.

[0185] In this way, the cover plate portion 170 forms one of the first side plates 130 , and the housing portion 160 is formed by enclosing another first side plate 130 , two second side plates 140 , and two third side plates 150 .

[0186] In the embodiment of the present application, a housing portion 160 and a cover portion 170 are provided to form a housing cavity 101 . The housing portion 160 forms a recessed chamber, which facilitates the installation of the internal structure of the ion generator 30 on one side of the housing portion 160 , and the installation is stable and reliable.

[0187] In some other possible implementations of the present application, the housing component 100 may include two half shells, the two half shells are respectively configured to form a recessed chamber, and the two half shells are fixedly connected to jointly enclose a receiving cavity 101.

[0188] Combination Fig.12 and Fig.13 In some embodiments of the present application, the ion generator 30 may further include an opposing electrode group 200, and the opposing electrode group 200 is located in the accommodating chamber 101. The opposing electrode group 200 is configured to generate plasma.

[0189] The opposing electrode group 200 includes a first electrode 210 and a second electrode 220. The first electrode 210 and the second electrode 220 are disposed opposite to each other. For example, the first electrode 210 and the second electrode 220 are disposed opposite to each other along a third direction and are spaced apart. The first electrode 210 and the second electrode 220 are used together to ionize air to generate plasma.

[0190] The first electrode 210 and the second electrode 220 are conductors, which can be made of metal, for example, one or more of stainless steel, copper, aluminum, tungsten, and molybdenum; the first electrode 210 and the second electrode 220 can also be made of conductive non-metallic materials such as graphite and carbon fiber. The first electrode 210 and the second electrode 220 can be strip-shaped, ring-shaped, sheet-shaped, needle-shaped, and other conductors.

[0191] In some embodiments, one of the first electrode 210 and the second electrode 220 is a needle-shaped electrode, and the other is a sheet-shaped electrode. The tip of the needle-shaped electrode is conducive to the accumulation of charges. When the charge accumulation on the needle-shaped electrode exceeds a certain level, discharge is performed. After discharge, the charge ionizes the surrounding gas to form plasma. The charge on the needle-shaped electrode instantly becomes zero, and then enters the next charge accumulation, charging and discharging cycle. By adjusting the distance between the needle-shaped electrode and the sheet, the discharge frequency and discharge intensity can be controlled and adjusted, and the optimal discharge power can be found to generate plasma.

[0192] At least one counter electrode group 200 is provided. For example, the counter electrode group 200 can be provided in one group, and the structure is simple.

[0193] There may be multiple sets of opposing electrode groups 200, which helps to increase the number of plasmas. Multiple sets of opposing electrode groups 200 may be connected to the same power supply terminal so that the same voltage value is applied to the multiple sets of opposing electrode groups 200. Alternatively, the voltage value of at least one set of opposing electrode groups 200 is different from the voltage value applied to the other opposing electrode groups 200 to form different discharge voltages.

[0194] The ion generator 30 of the embodiment of the present application may further include a third electrode 300 , and the third electrode 300 is used to generate negative air ions.

[0195] The third electrode 300 is located outside the region between the first electrode 210 and the second electrode 220. It can be understood that no discharge can be formed between the third electrode 300 and the first electrode 210 and the second electrode 220.

[0196] In some embodiments, a partition plate 161 is disposed in the accommodating cavity 101, the partition plate 161 is parallel to the second side plate 140, and there is a gap between the partition plate 161 and the two second side plates 140. The opposing electrode group 200 and the third electrode 300 are respectively located on both sides of the partition plate 161 along the second direction, so that the third electrode 300 is located outside the region of the opposing electrode group 200.

[0197] The third electrode 300 extends to the outside of the outer shell member 100, which helps the air negative ions to diffuse into the air supply duct 502, and helps to improve the electrostatic sterilization rate.

[0198] The third electrode 300 is a conductor. The third electrode 300 can be made of metal, such as a metal needle electrode. The third electrode 300 can be a carbon brush electrode, which not only has good conductivity but also can reduce the generation of electric sparks.

[0199] The voltage of the third electrode 300 is a negative voltage, and the voltage value of the third electrode 300 may be greater than 1.5 kV and less than 5 kV. For example, the voltage value of the third electrode 300 may be -2 kV, -2.5 kV, -3.0 kV, -3.5 kV, -4 kV, -4.5 kV or -5 kV.

[0200] In this way, a negative voltage is applied to the third electrode 300, and the voltage value is greater than 1.5 kV and less than 5 kV. In this way, by setting a relatively small voltage value of the third electrode 300, the probability of electrostatic dust collection is reduced.

[0201] In some embodiments, the input voltage of the ion generator 30 may be DC 12 V, which is provided by the main control board of the refrigerator. The input voltage is adjusted to the supply voltage of the third electrode 300 and the counter electrode group 200 by the circuit in the ion generator 30 .

[0202] The ion generator 30 of the embodiment of the present application generates plasma by setting up the opposing electrode group 200, which can not only play a role in the refrigerated compartment 11, but also decompose odor molecules to play a purification role. By setting a third electrode 300 outside the area of ​​the opposing electrode group 200, it is used to generate negative air ions, and the negative air ions adsorb the floating bacteria in the refrigerated compartment 11 to play a role in removing the floating bacteria. The ion generator 30 of the embodiment of the present application can generate plasma and negative air ions. The two complement each other to improve the sterilization and deodorization effect of the refrigerated compartment 11.

[0203] In some embodiments, the refrigerator is already equipped with an ion generator having an opposing electrode group. By adding a third electrode to the ion generator, the ion generator can generate negative air ions, thereby upgrading the function of the ion generator without affecting the installation of the ion generator.

[0204] In some embodiments of the present application, there is a gap between the outer shell member 100 and the rear cavity wall 13 of the refrigerating chamber 11, and the gap is connected to the air supply duct 502. The third electrode 300 is exposed in the gap, that is, there is a gap between the side of the outer shell member 100 where the third electrode 300 is provided and the rear cavity wall 13 of the refrigerating chamber 11, so that the negative air ions generated by the third electrode 300 can quickly pass through the gap and enter the air supply duct 502, and enter the refrigerating chamber 11 under the action of the airflow of the air supply duct 502, which helps to improve the diffusion rate of the negative air ions.

[0205] In other embodiments of the present application, the mounting groove 503 is provided with an opening on one side along the width direction of the refrigerator, and the mounting groove 503 is connected to the air supply duct 502 through the opening; the housing member 100 is exposed to the air supply duct 502 through the opening; and the third electrode 300 is provided on the side of the housing member 100 facing the opening. In this arrangement, the third electrode 300 is exposed to the air supply duct 502, so that the negative air ions generated by the third electrode 300 can quickly enter the refrigerated compartment 11 driven by the air flow in the air supply duct 502, shortening the residence time of the negative air ions in the air supply duct 502, improving the sterilization rate of the negative air ions, and reducing the problem of electrostatic dust collection in the refrigerated compartment 11.

[0206] In some other embodiments of the present application, the third electrode 300 is exposed in the refrigerated compartment 11. Exemplarily, a through hole is provided on the air duct structure 500 so that the third electrode 300 is exposed in the refrigerated compartment 11; or, the third electrode 300 is exposed in the refrigerated compartment 11 through the air supply port 501. In this way, the negative air ions generated by the third electrode 300 can directly enter the refrigerated compartment 11, thereby improving the sterilization effect.

[0207] Combination Fig.10 In some possible implementations of the present application, the outer surface of the shell component 100 facing away from the accommodating cavity 101 is configured to form a recessed portion 103 , and the recessed portion 103 forms a through structure 104 .

[0208] The through structure 104 may be a through hole penetrating the recessed portion 103, for example, Fig.10 The circular hole shown; the through structure 104 can also be a polygonal hole, an elliptical hole, etc.

[0209] The outer surface of the housing member 100 is machined to form a recessed portion 103 , so that the inner side of the housing member 100 is not affected.

[0210] Since the thickness of the shell component 100 is relatively small, the side of the shell component 100 away from the accommodating cavity 101 is recessed toward the accommodating cavity 101 to form a recessed portion 103 , which helps to ensure the consistency of the thickness of the shell component 100 and ensure the structural strength of the shell component 100 .

[0211] In some embodiments, the recessed portion 103 is disposed on the first side plate 130 of the housing portion 160 , and there is sufficient space for the recessed portion 103 .

[0212] One end of the third electrode 300 is exposed to the outer shell member 100 through the through structure 104, thereby facilitating the outward diffusion of negative ions.

[0213] In some embodiments, one end of the third electrode 300 is fixed in the through structure 104 , so that the third electrode 300 is stably fixed to the housing component 100 .

[0214] The other end of the third electrode 300 extends into the recessed portion 103 , and the other end of the third electrode 300 does not protrude from the outer surface of the housing member 100 .

[0215] Exemplarily, the third electrode 300 may be bonded into the through structure 104 , and the installation method is stable and reliable.

[0216] In the embodiment of the present application, a recessed portion 103 is formed on the outer side of the housing member 100 to accommodate the exposed portion of the third electrode 300, and the other end of the third electrode 300 does not protrude from the outer surface of the housing member 100, so as to prevent the exposed portion of the third electrode 300 from being damaged by collision, thereby protecting the exposed portion of the third electrode 300. The through structure 104 provided in the recessed portion 103 is used to fix the third electrode 300 and ensure the stable position of the third electrode 300.

[0217] In other embodiments of the present application, one end of the third electrode 300 extending to the recessed portion 103 protrudes from the outer surface of the shell component 100, so that the third electrode 300 extends to the outside of the shell component 100 with a greater length, which is beneficial to improving the diffusion effect of negative ions.

[0218] In some possible implementations, the end of the third electrode 300 extending to the recessed portion 103 does not protrude from the ridge 131 on the housing member 100, that is, a section of the third electrode 300 extending to the recessed portion 103 may protrude from the outer surface of the housing member 100, but is lower than the top of the ridge 131, or is flush with the top of the ridge 131. The top of the ridge 131 is the end of the ridge 131 that is away from the outer surface of the housing member 100.

[0219] In this way, due to the arrangement of the ridge 131 , the third electrode 300 can be prevented from contacting the rear cavity wall 13 , which is beneficial to protecting the third electrode 300 .

[0220] Continue to refer to Fig.10 , along the extension direction of the through structure 104, and from the through structure 104 toward the outer end of the recessed portion 103, the side wall of the recessed portion 103 is inclined outward away from the center of the through structure 104, so that the recessed portion 103 is trumpet-shaped or funnel-shaped. In this way, the recessed portion 103 is diffused, providing a larger diffusion space for the negative air ions, which is conducive to the diffusion of the negative air ions.

[0221] When the through structure 104 is a through hole, the extending direction of the through structure 104 is the axial direction of the through hole.

[0222] In some embodiments of the present application, a fixing member 110 is disposed in the accommodating cavity 101 , and the fixing member 110 is opposite to the through structure 104 along the extension direction of the through structure 104 ; the through structure 104 extends from one end of the recessed portion 103 and passes through the fixing member 110 .

[0223] Exemplarily, the fixing member 110 may be columnar, with a simple structure and easy processing.

[0224] In the embodiment of the present application, the fixing member 110 is disposed in the accommodating cavity 101 , so that the axial dimension of the through structure 104 is lengthened, thereby improving the stability and reliability of the third electrode 300 installed in the through structure 104 .

[0225] Reference Fig.12 and Fig.13 In some embodiments of the present application, a reinforcing member 120 is further disposed in the accommodating cavity 101 , and the reinforcing member 120 connects the fixing member 110 and the outer shell member 100 .

[0226] Exemplarily, the reinforcement member 120 may also be a reinforcement rib.

[0227] A plurality of reinforcement members 120 may be provided, and the plurality of reinforcement members 120 are arranged at intervals along the circumference of the fixing member 110 to improve the structural strength of the fixing member 110 .

[0228] In some embodiments, the reinforcement member 120 is respectively connected to the fixing member 110 and the first side plate 130 of the housing portion 160 to improve the structural strength of the fixing member 110 .

[0229] In some embodiments, the reinforcement member 120 is also connected to the partition plate 161 to help improve the structural strength and stability of the shell portion 160 .

[0230] Continue to refer to Fig.13 and Fig.14 In some embodiments of the present application, the ion generator 30 further includes a driving circuit board 400 , and the driving circuit board 400 is fixed in the accommodating cavity 101 .

[0231] Exemplarily, a fixing groove 162 is formed in the accommodating cavity 101, and the driving circuit board 400 is clamped in the fixing groove 162, and the connection method is simple. Two limiting plates 163 are also arranged in the accommodating cavity 101, and the two limiting plates 163 are opposite to each other and have a gap along the third direction, and the two limiting plates 163 are parallel to the third side plate 150. The two ends of the two limiting plates 163 along the second direction are respectively connected to the partition plate 161 and the second side plate 140, so that the second side plate 140, the two limiting plates 163, the partition plate 161 and the first side plate 130 enclose and form the fixing groove 162.

[0232] The driving circuit board 400 is electrically connected to the first electrode 210 , the second electrode 220 and the third electrode 300 , respectively; the driving circuit board 400 is configured to control the power-on status of the first electrode 210 , the second electrode 220 and the third electrode 300 .

[0233] Exemplarily, the first electrode 210 is a positive electrode, and the second electrode 220 is a negative electrode. A voltage difference is formed between the first electrode 210 and the second electrode 220, and discharge forms plasma.

[0234] In the embodiment of the present application, the ion generator 30 controls the power-on state of the first electrode 210, the second electrode 220, and the third electrode 300 by setting a driving circuit board 400. The driving circuit board 400 is fixed in the accommodating cavity 101, so that the electrodes and the control device of the ion generator 30 are integrated in the housing member 100, making the structure of the ion generator 30 more compact and the installation simpler and more convenient.

[0235] In some embodiments of the present application, the opposing electrode group 200 and the third electrode 300 are respectively located on different sides of the driving circuit board 400. In this way, the third electrode 300 is located outside the region of the opposing electrode group 200, which can avoid discharge between the third electrode 300 and the first electrode 210 and the second electrode 220. In addition, the electrical connection space between the electrode and the driving circuit board 400 can be sufficient.

[0236] For example, the counter electrode group 200 may be located at one side of the driving circuit board 400 along the third direction, and the third electrode 300 may be located at one side of the driving circuit board 400 along the second direction.

[0237] Combination Fig.15 In some embodiments, the driving circuit board 400 is arranged between the two first side plates 130 and parallel to the first side plates 130. Such an arrangement can not only make the driving circuit board 400 have a larger area for arranging electrical components, but also make the ion generator 30 flat as a whole and more compact in structure.

[0238] In some embodiments of the present application, the opposing electrode group 200 is located on one side of the driving circuit board 400 along the third direction; the first electrode 210 is electrically connected to the driving circuit board 400, so that the driving circuit board 400 supplies power to the first electrode 210; the second electrode 220 is grounded, so that a voltage difference is formed between the first electrode 210 and the second electrode 220.

[0239] The second electrode 220 is opposite to the first electrode 210 along the third direction and is spaced apart from the first electrode 210 . The second electrode 220 is opposite to the driving circuit board 400 along the third direction and is spaced apart from the first electrode 210 .

[0240] The first through hole 1021 is disposed at a portion of the two first side plates 130 between the second electrode 220 and the driving circuit board 400 . The communication port 102 includes the first through hole 1021 .

[0241] Exemplarily, there is a gap between the side of the limiting plate 163 away from the fixing groove 162 and the third side plate 150, and the opposing electrode group 200 is installed in the gap. The first plate portion between the limiting plate 163 and the third side plate 150 is provided with a first through hole 1021.

[0242] The first through hole 1021 can be a circular hole, an elliptical hole, a waist-shaped hole, a polygonal hole, etc.

[0243] A plurality of first through holes 1021 may be provided, and the plurality of first through holes 1021 are arranged at intervals along the second direction, thereby increasing the area of ​​the communication port 102 and improving the diffusion rate of the plasma.

[0244] In the embodiment of the present application, the first electrode 210 and the second electrode 220 are arranged on one side of the driving circuit board 400 along the third direction, so that there is sufficient space for arranging the first electrode 210 and the second electrode 220; and, a first through hole 1021 is provided in the interval between the two first side panels 130 located between the driving circuit board 400 and the second electrode 220, so that the plasma generated by the discharge of the first electrode 210 and the second electrode 220 can quickly pass through the first through hole 1021 into the air supply duct 502, reducing the residence path of the plasma in the accommodating cavity 101, which helps to improve the diffusion efficiency of the plasma, and further helps to improve the sterilization and deodorization effects of the ion generator 30.

[0245] In some embodiments of the present application, the third electrode 300 is located on one side of the driving circuit board 400 along the second direction, and the two first side plates 130 are located on both sides of the third electrode 300 along the third direction and are respectively provided with second through holes 1022; the connecting port 102 also includes a second through hole 1022.

[0246] In the embodiment of the present application, the third electrode 300 is located on one side of the driving circuit board 400 along the second direction, and is located on a different side of the driving circuit board 400 from the counter electrode group 200, so as to avoid mutual influence between the two. By respectively providing the second through holes 1022 on both sides of the third electrode 300 along the third direction, the area of ​​the communication port 102 is further increased, and convection is formed between the first through hole 1021 and the second through hole 1022, which is more conducive to the plasma entering the air supply duct 502 from the accommodating cavity 101.

[0247] The second through hole 1022 may be a circular hole, an elliptical hole, a waist-shaped hole, a polygonal hole, etc.

[0248] A plurality of second through holes 1022 may be provided, and the plurality of second through holes 1022 are spaced apart along the second direction to increase the area of ​​the communication port 102 .

[0249] The refrigerator of the embodiment of the present application may further include a control device, which is electrically connected to the refrigeration fan and the driving circuit board 400, respectively, and is configured as follows:

[0250] When the refrigeration fan is running, the driving circuit board 400 is controlled to operate in the first sterilization mode; wherein the first sterilization mode is to control the driving circuit board 400 to intermittently supply power to the third electrode 300.

[0251] In this way, the third electrode 300 generates negative air ions intermittently, which can timely and effectively adsorb and settle the floating bacteria in the refrigerated compartment 11 to achieve the sterilization effect; it can also avoid excessive generation of negative air ions, which will cause black areas to appear on the surface of the refrigerator due to electrostatic dust collection, affecting the use of the refrigerator. It can also reduce the power consumption of the refrigerator and save energy. Intermittent power supply to the third electrode 300 also helps to extend the service life of the third electrode 300.

[0252] In the embodiment of the present application, when the refrigeration fan is running, the cold air enters the refrigerated compartment 11 through the air supply duct 502 and the air supply port 501. At this time, the third electrode 300 is intermittently powered to generate negative air ions, and the negative air ions quickly enter the refrigerated compartment 11 along with the cold air, thereby increasing the residence time of the negative air ions in the air supply duct 502 and reducing the probability of electrostatic dust collection in the duct structure 500; as the cold air flows in the refrigerated compartment 11, the negative air ions diffuse in the refrigerated compartment 11, which helps to electrostatically adsorb and sterilize the entire refrigerated compartment 11, thereby improving the sterilization effect.

[0253] In some possible implementations of the present application, the first sterilization mode is to control the driving circuit board 400 to intermittently supply power to the third electrode 300 according to a preset third duty cycle until the refrigeration fan is turned off.

[0254] The third duty cycle is a ratio of the power supply duration of the third electrode 300 to the third cycle duration, and the third cycle duration is the sum of the power supply duration and the power-off duration of the third electrode 300 .

[0255] Exemplarily, the power supply duration of the third electrode 300 may be 1s to 10s. The power-off duration of the third electrode 300 is 1s to 10s. For example, when the power supply duration of the third electrode 300 is 5s and the power-off duration of the third electrode 300 is 5s, the third duty cycle is 1:2, and the third cycle duration is 10s. For another example, when the power supply duration of the third electrode 300 is 3s and the power-off duration of the third electrode 300 is 6s, the third duty cycle is 1:3, and the third cycle duration is 9s. For another example, when the power supply duration of the third electrode 300 is 4s and the power-off duration of the third electrode 300 is 2s, the third duty cycle is 2:3, and the third cycle duration is 6s. The embodiment of the present application does not limit the third duty cycle, the power supply duration and the power-off duration of the third electrode 300.

[0256] The first sterilization mode runs until the refrigeration fan is turned off. It can be understood that the third electrode 300 is intermittently powered, regardless of whether the third electrode 300 is in the power-on state or the third electrode 300 is in the power-off state. When the refrigeration fan is turned off, the control device controls the driving circuit board 400 to end the first sterilization mode.

[0257] The embodiment of the present application uses the above configuration to enable the third electrode 300 to intermittently generate negative air ions when the refrigeration fan is started, thereby sterilizing the refrigerated compartment 11. When the refrigeration fan is turned off, the negative air ions enter the refrigerated compartment 11 slowly due to the lack of the driving effect of the cold air, and electrostatic dust is easily generated on the air duct structure 500. When the refrigeration fan is turned off, the first sterilization mode of the third electrode 300 is terminated, which can effectively avoid the generation of electrostatic dust on the air duct structure 500.

[0258] In some embodiments, during the operation of the refrigeration fan, if the door 20 is opened, the refrigeration fan is turned off. Usually, during the operation of the refrigeration fan, it is the refrigeration period of the refrigerator. If the door 20 is opened, the refrigeration fan is turned off to avoid waste of cold air.

[0259] In some possible implementations of the present application, the control device is further configured to:

[0260] When the refrigeration fan is running, if the door body 20 is opened, the driving circuit board 400 is controlled to suspend the first sterilization mode;

[0261] When the door body 20 is closed and the closing time of the door body 20 reaches a preset first time, the driving circuit board 400 is controlled to continue to operate in the first sterilization mode until the refrigeration fan is turned off.

[0262] Exemplarily, the first duration is preset, and the first duration may be 30s, 40s, etc.

[0263] Thus, when the door 20 is opened, the refrigerated compartment 11 is connected to the air in the atmosphere, and the first sterilization mode is suspended to avoid the waste of negative air ions. Since the refrigeration fan is turned off when the door 20 is opened, the first sterilization mode is suspended to avoid the negative air ions staying in the air supply duct 502 for too long and easily causing electrostatic dust collection.

[0264] When the door 20 is closed, the air in the refrigerated compartment 11 is unstable, and the first sterilization mode is immediately started, and the sterilization effect is limited. Therefore, after the door 20 is closed and the preset first time period is reached, the air environment in the refrigerated compartment 11 is stable, and the first sterilization mode is continued to be operated to sterilize the refrigerated compartment 11.

[0265] It can be understood that the control driving circuit board 400 continues to operate in the first sterilization mode, which can be understood as, when the door body 20 is opened, if the third electrode 300 is in a power supply state; after the first time period after the door body 20 is closed, the third electrode 300 is restored to the power supply state. When the door body 20 is opened, if the third electrode 300 is in a power-off state, after the first time period after the door body 20 is closed, the third electrode 300 is restored to the power-off state.

[0266] In some embodiments of the present application, the control device is further configured to:

[0267] When the refrigeration fan is running, the control driving circuit board 400 operates in the second sterilization mode; wherein, the second sterilization mode is to control the driving circuit board 400 to intermittently supply power to the first electrode 210 and the second electrode 220; the voltage value between the first electrode 210 and the second electrode 220 is the first voltage value.

[0268] In this embodiment, the second sterilization mode stops when the refrigeration fan is turned off.

[0269] It can be understood that when the refrigeration fan is running, the first sterilization mode and the second sterilization mode are running at the same time to improve the sterilization effect. The first electrode 210 and the second electrode 220 are intermittently powered, so that the first electrode 210 and the second electrode 220 intermittently generate plasma, which can not only allow the plasma to quickly enter the refrigerated compartment 11 and sterilize the refrigerated compartment 11, but also help to extend the service life of the first electrode 210 and the second electrode 220; and can avoid excessive generation of plasma and unnecessary energy waste.

[0270] Controlling the driving circuit board 400 to intermittently supply power to the first electrode 210 and the second electrode 220 can be understood as intermittently generating a voltage difference between the first electrode 210 and the second electrode 220 to intermittently generate plasma. Exemplarily, the first electrode 210 and the driving circuit board 400 are powered, the second electrode 220 is grounded, and the first electrode 210 is intermittently powered, so that there is an intermittent voltage difference between the first electrode 210 and the second electrode 220.

[0271] It should be noted that when the third electrode 300 is in the power-on state, the first electrode 210 and the second electrode 220 can be in the power-on state, or the first electrode 210 and the second electrode 220 can be in the power-off state. When the third electrode 300 is in the power-off state, the first electrode 210 and the second electrode 220 can be in the power-on state, or the first electrode 210 and the second electrode 220 can be in the power-off state.

[0272] In some other embodiments of the present application, the control device is further configured to:

[0273] When the refrigeration fan is turned off and the door body 20 is closed, the control driving circuit board 400 operates in the second sterilization mode; wherein, the second sterilization mode is to control the driving circuit board 400 to intermittently power the first electrode 210 and the second electrode 220; the voltage value between the first electrode 210 and the second electrode 220 is the first voltage value.

[0274] After the first sterilization mode ends, the second sterilization mode is run. In this way, the negative air ions generated by the first sterilization mode can electrostatically adsorb and settle the airborne bacteria, and at least part of the airborne bacteria will be settled while sterilizing; the second sterilization mode is run after the first sterilization mode, and can also be used to treat the particles and bacteria settled by the negative air ions, which helps to further improve the sterilization effect.

[0275] In some embodiments of the present application, when the refrigeration fan is started, the first sterilization mode is activated first; when the refrigeration fan is stopped, the second sterilization mode is activated first.

[0276] In the embodiment of the present application, the second sterilization mode is operated when the door body 20 is closed. This is because when the door body 20 is closed, a relatively stable air environment is formed in the refrigerated compartment 11, which helps the plasma to be more effectively distributed and act on the internal air and surface.

[0277] In some embodiments, during the operation of the second sterilization mode, if the door body 20 is opened, the control device controls the driving circuit board 400 to suspend the second sterilization mode; and when the door body 20 is closed and the closing time of the door body 20 reaches a preset second time, the control device controls the driving circuit board 400 to continue to operate in the second sterilization mode until the closing condition of the second sterilization mode is met.

[0278] Exemplarily, the second duration is pre-set, and the second duration may be 20s, 30s, 40s, 50s, 60s, etc.

[0279] In some embodiments, the second time length may be greater than the first time length. For example, the second time length may be 60 seconds, and the first time length may be 30 seconds. This is because, when the refrigeration fan is turned off, it takes a long time for a relatively stable air environment to form in the refrigerated compartment 11, and a relatively stable air environment is conducive to the diffusion and distribution of ions. When the refrigeration fan is turned on, a smaller time interval can allow the third electrode 300 to provide negative air ions faster, which helps to improve the sterilization effect of the refrigerator.

[0280] In this way, when the door 20 is opened, the refrigerated compartment 11 is in communication with the outside atmosphere, which affects the distribution of plasma and the sterilization effect. When the door 20 is opened, the second sterilization mode is suspended, which helps to reduce the power consumption of the refrigerator. After the door 20 is closed for a second period of time, a relatively stable environment is formed in the refrigerated compartment 11. At this time, the second sterilization mode is continued to operate, which helps the plasma to be more effectively distributed and act on the air and surface of objects in the refrigerated compartment 11.

[0281] It can be understood that the control driving circuit board 400 continues to operate in the second sterilization mode, which can be understood as, when the door body 20 is opened, if the first electrode 210 and the second electrode 220 are in the power supply state; after the second time length after the door body 20 is closed, the first electrode 210 and the second electrode 220 are restored to the power supply state. When the door body 20 is opened, if the first electrode 210 and the second electrode 220 are in the power-off state, after the second time length after the door body 20 is closed, the first electrode 210 and the second electrode 220 are restored to the power-off state.

[0282] In some possible implementations of the present application, the second sterilization mode is to control the driving circuit board 400 to intermittently supply power to the first electrode 210 and the second electrode 220 according to a preset first duty cycle, and run a first preset number of cycles.

[0283] The first duty cycle is the ratio of the power supply duration of the first electrode 210 and the second electrode 220 to the first cycle duration, and the first cycle duration is the sum of the power supply duration and the power-off duration of the first electrode 210 and the second electrode 220 .

[0284] Exemplarily, the power supply duration of the first electrode 210 and the second electrode 220 may be 1s to 10s. The power-off duration of the first electrode 210 and the second electrode 220 is 6s to 60s. For example, when the power supply duration of the first electrode 210 and the second electrode 220 is 5s and the power-off duration of the first electrode 210 and the second electrode 220 is 30s, the first duty cycle is 1:7, and the third cycle duration is 35s. For another example, when the power supply duration of the first electrode 210 and the second electrode 220 is 3s and the power-off duration of the first electrode 210 and the second electrode 220 is 6s, the first duty cycle is 1:3, and the third cycle duration is 9s. For another example, when the power supply duration of the first electrode 210 and the second electrode 220 is 4s and the power-off duration of the first electrode 210 and the second electrode 220 is 40s, the first duty cycle is 1:11, and the third cycle duration is 44s. The embodiment of the present application does not limit the first preset number, the first duty cycle, the power supply duration and the power-off duration of the first electrode 210 and the second electrode 220 .

[0285] Exemplarily, the first preset number may be 5 to 10. For example, the first preset number may be 6 or 7 or 8 or 9, etc.

[0286] In the embodiment of the present application, the first electrode 210 and the second electrode 220 are operated intermittently, and plasma is generated intermittently to sterilize the refrigerated compartment 11. After the first preset number of cycles are run, the second sterilization mode is turned off, which can sterilize the refrigerated compartment 11 and reduce the power consumption of the refrigerator to save electricity.

[0287] In some embodiments of the present application, a plurality of opposing electrode groups 200 are provided; the control device is further configured to:

[0288] When the door body 20 is closed, the control driving circuit board 400 operates in the clean odor mode; wherein, the clean odor mode includes controlling the driving circuit board 400 to intermittently supply power to the first electrode 210 and the second electrode 220 of at least one of the opposing electrode groups 200; wherein, the voltage value between the first electrode 210 and the second electrode 220 is a second voltage value, and the second voltage value is less than the first voltage value.

[0289] In this embodiment, at least one of the plurality of opposing motor groups is powered independently, so that the working state of at least one opposing electrode group 200 is different from the working states of the other opposing electrode groups 200 .

[0290] In the embodiment of the present application, when the door body 20 is closed, the control device controls the driving circuit board 400 to operate in the clean odor mode. This means that no matter whether the refrigeration fan is running or turned off, as long as the door body 20 is closed, the control device controls the driving circuit board 400 to operate in the clean odor mode.

[0291] Thus, when the refrigeration fan is running, the first sterilization mode is running, wherein the first electrode 210 and the second electrode 220 of at least one set of the opposing electrode groups 200 are running in the odor-free mode. Alternatively, when the refrigeration fan is running, the first sterilization mode is running, wherein the first electrode 210 and the second electrode 220 of at least one set of the opposing electrode groups 200 are running in the odor-free mode; wherein the first electrode 210 and the second electrode 220 of at least another set of the opposing electrode groups are running in the second sterilization mode.

[0292] When the refrigeration fan is turned off, the first electrode 210 and the second electrode 220 of at least one set of the opposing electrode groups 200 operate in the odor-free mode. Alternatively, when the refrigeration fan is turned off, the first electrode 210 and the second electrode 220 of at least one set of the opposing electrode groups 200 operate in the odor-free mode; and the first electrode 210 and the second electrode 220 of at least another set of the opposing electrode groups operate in the second sterilization mode.

[0293] In the embodiment of the present application, the second voltage value is less than the first voltage value, that is, the voltage difference between the first electrode 210 and the second electrode 220 in the odor removal mode is less than the voltage difference between the first electrode 210 and the second electrode 220 in the second sterilization mode. In the second sterilization mode, the voltage difference between the first electrode 210 and the second electrode 220 is larger, the plasma obtains more energy, and the ion and particle seal is relatively large, which is conducive to rapid deodorization. In the second sterilization mode, the oxygen molecules have at least the following reactions: O 2 →2O + +2e; These particles are oxidizing and can cause denaturation and inactivation of microbial proteins, thus playing a sterilizing role.

[0294] In the odor-free mode, the voltage difference between the first electrode 210 and the second electrode 220 is small, and the oxygen molecules undergo at least the following reactions: H 2 O→H 2 O + +e;H 2 O+H 2 O + →H 3 O + +HO · In this discharge process, waxing oxygen free radicals and excimers, such as O · and HO · Etc., has the effect of removing odor.

[0295] In an embodiment of the present application, the control device is configured to control the driving circuit board 400 to execute the deodorizing mode for at least one of the opposing electrode groups 200, so that the ion generator 30 runs the sterilization mode at the same time, which helps to improve the sterilization and deodorizing effects of the refrigerator.

[0296] In some other embodiments of the present application, the control device is further configured to:

[0297] In an odd number operation cycle, the driving circuit board 400 is controlled to operate in the first sterilization mode and / or the second sterilization mode;

[0298] In an even-numbered operation cycle and when the door body 20 is closed, the driving circuit board 400 is controlled to operate in the clean odor mode; wherein the clean odor mode includes controlling the driving circuit board 400 to intermittently supply power to the first electrode 210 and the second electrode 220; wherein the voltage value between the first electrode 210 and the second electrode 220 is a second voltage value, and the second voltage value is less than the first voltage value;

[0299] The operation cycle includes a first time period and a second time period, the first time period is a time period when the refrigeration fan is running, and the second time period is a time period when the refrigeration fan is turned off.

[0300] In the embodiment of the present application, the sterilization mode (including the first sterilization mode and the second sterilization mode) of the ion generator 30 is alternately performed with the purification mode, so that the negative air ions and plasma can continuously act on the surface and air of the refrigerated compartment 11, which is conducive to providing continuous sterilization and deodorization effects. Moreover, the alternating operation mode can reduce the operating load of the ion generator 30, which helps to extend the service life of the ion generator 30.

[0301] In some embodiments of the present application, during the operation of the odor-free mode, if the door body 20 is opened, the control device controls the drive circuit to suspend the odor-free mode, and when the door body 20 is closed and the closing time of the door body 20 reaches a preset third time, the control device controls the drive circuit board 400 to continue operating in the odor-free mode until the closing condition of the odor-free mode is met.

[0302] Exemplarily, the third duration is preset, and the third duration may be 20s, 30s, 40s, 50s, 60s, etc.

[0303] The third time length during the operation of the refrigeration fan may be less than the third time length during the shutdown of the refrigeration fan. For example, during the operation of the refrigeration fan, the door body 20 is opened and then closed for 30 seconds, and the deodorizing mode continues to operate. During the shutdown of the refrigeration fan, the door body 20 is opened and then closed for 60 seconds, and the deodorizing mode continues to operate. This is because, during the operation of the refrigeration fan, the refrigeration fan can make the air in the refrigerated compartment 11 flow, so that the air in the refrigerated compartment 11 reaches a relatively stable and balanced state faster. Moreover, during the operation of the refrigeration fan, plasma can enter the refrigerated compartment 11 faster from the ion generator 30, and the shorter interval after the door body 20 is closed enables the deodorizing mode to be started quickly, which is more conducive to improving the deodorizing effect of the refrigerator.

[0304] The closing conditions of the odor-free mode may include: reaching the operation cycle of the odor-free mode; or, during the operation of the refrigeration fan, the odor-free mode stops when the refrigeration fan is turned off.

[0305] In this way, when the door 20 is opened, the refrigerated compartment 11 is in communication with the outside atmosphere, which affects the distribution of plasma and the deodorization effect. When the door 20 is opened, the deodorization mode is suspended, which helps to reduce the power consumption of the refrigerator. After the door 20 is closed for a third period of time, a relatively stable environment is formed in the refrigerated compartment 11. At this time, the odor-free mode is continued to operate, which helps the plasma to be more effectively distributed and act on the refrigerated compartment 11.

[0306] It can be understood that the control driving circuit board 400 continues to operate in the clean odor mode, which can be understood as, when the door body 20 is opened, if the first electrode 210 and the second electrode 220 are in the power supply state; after the second time length after the door body 20 is closed, the first electrode 210 and the second electrode 220 are restored to the power supply state. When the door body 20 is opened, if the first electrode 210 and the second electrode 220 are in the power-off state, after the second time length after the door body 20 is closed, the first electrode 210 and the second electrode 220 are restored to the power-off state.

[0307] In some possible implementations of the present application, the deodorizing mode includes controlling the driving circuit board 400 to intermittently supply power to the first electrode 210 and the second electrode 220 according to a preset second duty cycle, and running a second preset number of cycles.

[0308] The second duty cycle is a ratio of the power supply duration of the first electrode 210 and the second electrode 220 to the second cycle duration, and the second cycle duration is the sum of the power supply duration and the power-off duration of the first electrode 210 and the second electrode 220 .

[0309] The duration of the second cycle can be the same as or different from the duration of the first cycle, and the setting is flexible.

[0310] For example, during the operation of the cooling fan, the power supply duration of the first electrode 210 and the second electrode 220 may be 1s to 5s. The power-off duration of the first electrode 210 and the second electrode 220 may be 1s to 5s. The second duty ratio may be 1:2.

[0311] For example, during the process of shutting down the cooling fan, the power supply duration of the first electrode 210 and the second electrode 220 may be 1s to 5s. The power-off duration of the first electrode 210 and the second electrode 220 may be 3s to 15s. The second duty ratio may be 1:4.

[0312] The second preset number may be 5 to 10. Thus, the odor-free mode is shut down after running for a certain number of cycles, which can reduce or even avoid electrostatic dust collection and help to increase the service life of the ion generator 30.

[0313] In some embodiments, the second duty cycle of the deodorization mode during the operation of the refrigeration fan is greater than the second duty cycle during the shutdown of the refrigeration fan, so that the first electrode 210 and the second electrode 220 can have a longer power supply time during the operation of the refrigeration fan, which is conducive to generating more plasma, and can quickly enter the refrigerated compartment 11, which helps to improve the deodorization effect. The first electrode 210 and the second electrode 220 can be made to have a longer power-off time during the operation of the refrigeration fan, which can not only generate plasma to sterilize and deodorize the refrigerated compartment 11, but also avoid the accumulation of plasma in certain areas and the easy occurrence of electrostatic dust collection.

[0314] In some embodiments of the present application, a light source and a light intensity sensor are provided at one end of the return air duct 505 formed by the air duct structure 500 and close to the return air outlet 506, and the light source and the light intensity sensor are respectively located on both sides of the return air duct 505 perpendicular to its extension direction. Exemplarily, the light source and the light intensity sensor are respectively located on both sides of the return air duct 505 along the width direction of the refrigerator.

[0315] The light source provides light for the return air duct 505. For example, the light source may be an LED lamp. The light source illuminates the optical fiber in the return air duct 505, and the cleanliness of the air can be evaluated by the intensity of the scattered light, thereby determining the operating state of the ion generator 30.

[0316] The light intensity sensor is used to detect the light intensity value of the return air duct 505. When the air in the return air duct 505 is relatively clean, the light intensity value is relatively large; when the air in the return air duct 505 is relatively poor, the light intensity value is relatively small.

[0317] The embodiment of the present application evaluates the air cleanliness of the refrigerated compartment 11 by setting a light source and a light intensity sensor in the return air duct 505. The air environment is relatively stable, and the light source and the light intensity sensor are arranged at one end of the return air duct 505 close to the return air outlet 506. The air environment is close to the refrigerated compartment 11, so that the detection result is accurate and reliable. Compared with setting a light source and a light intensity sensor in the refrigerated compartment 11, the light source is easily affected by the storage in the refrigerated compartment 11, affecting the accuracy; and the opening and closing of the door body 20 causes the air in the refrigerated compartment 11 to fluctuate, which also affects the accuracy of the detection.

[0318] The control device is electrically connected to the light source and the light intensity sensor respectively, and the control device is further configured as follows:

[0319] When the cooling fan is turned off, the light source is controlled to turn on;

[0320] Acquire the light intensity value of the return air duct 505 through the light intensity sensor;

[0321] When the light intensity value meets the set condition, the driving circuit board 400 is controlled to operate in the first sterilization mode;

[0322] The setting conditions include at least one of the following:

[0323] The light intensity value is less than a preset light intensity threshold; the light intensity values ​​of a preset number of times are continuously obtained every preset monitoring time, and the light intensity values ​​of the preset number of times show a downward trend.

[0324] In some embodiments, the light intensity value being less than a preset light intensity threshold value indicates that the air in the refrigerated compartment 11 is unclean, and the driving circuit board 400 is controlled to operate in the first sterilization mode. The judgment logic is simple and the sterilization is timely.

[0325] In other embodiments, the light intensity values ​​detected multiple times show a downward trend, indicating that the air in the refrigerated compartment 11 is deteriorating, and the driving circuit board 400 is controlled to operate in the first sterilization mode to improve the accuracy of control and reduce errors.

[0326] In the embodiment of the present application, a light source and a light intensity sensor are arranged at one end of the return air duct 505 near the return air port 506 to determine the light intensity value of the return air duct 505, thereby determining the air cleanliness of the refrigerated compartment 11 when the refrigeration fan is turned off, and then determining the floating bacteria in the refrigerated compartment 11. When the light intensity value is less than a preset light intensity threshold, and / or when the light intensity values ​​detected multiple times show a downward trend, the control driving circuit board 400 is operated in the first sterilization mode to perform sterilization in a timely manner.

[0327] In this embodiment, when the first sterilization mode is running, the control device can also be configured to: control the refrigeration fan to run, so that negative air ions quickly enter the refrigeration compartment 11, thereby improving the sterilization efficiency.

[0328] In the embodiment of the present application, when the control device controls the driving circuit board 400 to operate in the first sterilization mode, it also controls the light source to turn off to save energy.

[0329] In this embodiment, the first sterilization mode may be turned off after running for several cycles.

[0330] Based on the above refrigerator, some embodiments of the present application may also provide a refrigerator control method, which may be performed by the above refrigerator control device. The method may include the following steps:

[0331] When the refrigeration fan is running, the driving circuit board is controlled to operate in the first sterilization mode.

[0332] Among them, the first sterilization mode is to control the driving circuit board to intermittently power the third electrode.

[0333] For the specific implementation of the above steps, please refer to the above embodiments, which will not be described again here.

[0334] The ion generator of the embodiment of the present application generates plasma by setting up an opposing electrode group, which can not only play a role in the cold storage compartment, but also decompose odor molecules to play a purification role. By setting a third electrode outside the area of ​​the opposing electrode group, it is used to generate negative air ions, and the negative air ions adsorb the floating bacteria in the cold storage compartment to play a role in removing the floating bacteria. The ion generator of the embodiment of the present application can generate both plasma and negative air ions. The two complement each other to improve the sterilization and deodorization effect of the cold storage compartment.

[0335] The third electrode of the embodiment of the present application intermittently generates negative air ions, which can timely and effectively adsorb and settle the floating bacteria in the cold storage room to achieve the effect of sterilization; it can also avoid excessive generation of negative air ions, which will cause black areas on the surface of the refrigerator due to electrostatic dust collection, affecting the use of the refrigerator. It can also reduce the power consumption of the refrigerator and save energy. Intermittent power supply to the third electrode also helps to extend the service life of the third electrode.

[0336] In the embodiment of the present application, when the refrigeration fan is running, cold air enters the cold storage compartment through the air supply duct and the air supply port. At this time, the third electrode is intermittently powered to generate negative air ions, which quickly enter the cold storage compartment along with the cold air, thereby increasing the residence time of the negative air ions in the air supply duct and reducing the probability of electrostatic dust collection in the duct structure; as the cold air flows in the cold storage compartment, the negative air ions diffuse in the cold storage compartment, which helps to electrostatically adsorb and sterilize the entire cold storage compartment, thereby improving the sterilization effect.

[0337] In some embodiments, the control method further comprises:

[0338] When the refrigeration fan is running, the driving circuit board is controlled to operate in the second sterilization mode.

[0339] Among them, the second sterilization mode is to control the driving circuit board to intermittently power the first electrode and the second electrode; the voltage value between the first electrode and the second electrode is the first voltage value.

[0340] When the refrigeration fan is running, the first sterilization mode and the second sterilization mode are running at the same time to improve the sterilization effect. The first electrode and the second electrode are intermittently powered, so that the first electrode and the second electrode intermittently generate plasma, which can not only allow the plasma to quickly enter the refrigerated compartment to sterilize the refrigerated compartment, but also help to extend the service life of the first electrode and the second electrode; and can avoid excessive generation of plasma and unnecessary energy waste.

[0341] In some embodiments, the control method further includes: when the refrigeration fan is turned off and the door is closed, controlling the driving circuit board to operate in a second sterilization mode.

[0342] Among them, the second sterilization mode is to control the driving circuit board to intermittently power the first electrode and the second electrode; the voltage value between the first electrode and the second electrode is the first voltage value.

[0343] After the first sterilization mode ends, the second sterilization mode is run. In this way, the negative air ions generated by the first sterilization mode can electrostatically adsorb and settle the airborne bacteria, and at least part of the airborne bacteria will be settled while sterilizing; the second sterilization mode is run after the first sterilization mode, and can also be used to treat the particles and bacteria settled by the negative air ions, which helps to further improve the sterilization effect.

[0344] In some embodiments, the second sterilization mode is to control the driving circuit board to intermittently power the first electrode and the second electrode according to a preset first duty cycle, and run a first preset number of cycles;

[0345] The first duty cycle is a ratio of a power supply duration of the first electrode and the second electrode to a first cycle duration, and the first cycle duration is a sum of a power supply duration and a power-off duration of the first electrode and the second electrode.

[0346] In the embodiment of the present application, the first electrode and the second electrode operate intermittently, generate plasma intermittently, and sterilize the refrigerated compartment. After the first preset number of cycles are run, the second sterilization mode is turned off, which can sterilize the refrigerated compartment and reduce the power consumption of the refrigerator to save electricity.

[0347] In some embodiments, a plurality of opposing electrode groups are provided; the control method further comprises:

[0348] When the door is closed, the control drive circuit board operates in the odor-free mode.

[0349] Among them, the odor-free mode includes controlling the driving circuit board to intermittently power the first electrode and the second electrode of at least one opposing electrode group; wherein the voltage value between the first electrode and the second electrode is a second voltage value, and the second voltage value is less than the first voltage value.

[0350] In an embodiment of the present application, the control device is configured to control the driving circuit board to execute the deodorizing mode for at least one of the opposing electrode groups, so that the ion generator runs the sterilization mode at the same time, which helps to improve the sterilization and deodorizing effects of the refrigerator.

[0351] In some embodiments, the control method further comprises:

[0352] In an odd number of operation cycles, the driving circuit board is controlled to operate in the first sterilization mode and / or the second sterilization mode;

[0353] During an even-numbered operation cycle and when the door is closed, the control driving circuit board operates in the clean odor mode; wherein the clean odor mode includes controlling the driving circuit board to intermittently power the first electrode and the second electrode; wherein the voltage value between the first electrode and the second electrode is a second voltage value, and the second voltage value is less than the first voltage value.

[0354] The operation cycle includes a first time period and a second time period, the first time period is a time period when the refrigeration fan is running, and the second time period is a time period when the refrigeration fan is turned off.

[0355] In the embodiment of the present application, the sterilization mode (including the first sterilization mode and the second sterilization mode) of the ion generator is alternately performed with the purification mode, so that the negative air ions and plasma can continuously act on the surface and air of the refrigerated compartment, which is conducive to providing continuous sterilization and deodorization effects. Moreover, the alternating operation mode can reduce the operating load of the ion generator, which helps to extend the service life of the ion generator.

[0356] In some embodiments, the odor-free mode includes controlling the driving circuit board to intermittently power the first electrode and the second electrode according to a preset second duty cycle, and running a second preset number of cycles;

[0357] The second duty cycle is a ratio of the power supply duration of the first electrode and the second electrode to the second cycle duration, and the second cycle duration is the sum of the power supply duration and the power-off duration of the first electrode and the second electrode.

[0358] In the embodiment of the present application, the first electrode and the second electrode operate intermittently, generate plasma intermittently, and purify the refrigerated compartment. After the second preset number of cycles, the purifying mode is turned off, which can not only purify the refrigerated compartment, but also reduce the power consumption of the refrigerator and save electricity.

[0359] In some embodiments, the control method further comprises:

[0360] When the cooling fan is turned off, the light source is controlled to turn on;

[0361] The light intensity value of the return air duct is obtained through the light intensity sensor;

[0362] When the light intensity value meets the set condition, the driving circuit board is controlled to operate in the first sterilization mode;

[0363] The setting conditions include at least one of the following:

[0364] The light intensity value is less than a preset light intensity threshold; the light intensity values ​​of a preset number of times are continuously obtained every preset monitoring time, and the light intensity values ​​of the preset number of times show a downward trend.

[0365] In the embodiment of the present application, a light source and a light intensity sensor are arranged at one end of the return air duct near the return air outlet to determine the light intensity value of the return air duct, thereby judging the air cleanliness of the refrigerated compartment when the refrigeration fan is turned off, and then judging the floating bacteria in the refrigerated compartment. When the light intensity value is less than a preset light intensity threshold, and / or the light intensity values ​​detected multiple times show a downward trend, the control driving circuit board is operated in the first sterilization mode to perform sterilization in a timely manner.

[0366] In some embodiments, the control method further comprises:

[0367] When the refrigeration fan is running, if the door is opened, the driving circuit board is controlled to suspend the first sterilization mode;

[0368] When the door body is closed and the closing time of the door body reaches a preset first time length, the driving circuit board is controlled to continue to operate in the first sterilization mode until the refrigeration fan is turned off.

[0369] Thus, when the door is opened, the refrigerated compartment is connected to the atmosphere, and the first sterilization mode is suspended to avoid the waste of negative air ions. Since the refrigeration fan is turned off when the door is opened, the first sterilization mode is suspended to avoid the negative air ions staying in the air supply duct for too long, which may easily cause electrostatic dust collection.

[0370] When the door is closed, the air in the refrigerated room is unstable, and the first sterilization mode is immediately started, and the sterilization effect is limited. Therefore, after the door is closed and the preset first time period is reached, the air environment in the refrigerated room is stable, and the first sterilization mode is continued to be operated to sterilize the refrigerated room.

[0371] The present application also provides a computer-readable storage medium, which may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes. Specifically, the computer-readable storage medium stores computer execution instructions, which are used to implement the technical solution shown in the above method embodiment when executed by a computer.

[0372] The present application also provides a program product, which includes execution instructions stored in a readable storage medium. When the computer program is executed by a computer, the technical solution shown in the above method embodiment is executed. The specific implementation method and technical effect are similar and will not be repeated here.

[0373] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0374] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: include: A box body (10) is structured to form a refrigerated compartment (11) having a take-in and put-out opening; A door body (20) is hinged to the box body (10) to open or close the access opening; A refrigeration system, arranged in the box (10), for lowering the air temperature of the refrigerated compartment (11); A refrigeration fan installed on the box body (10); the refrigeration fan is configured to blow cold air passing through the evaporator of the refrigeration system into the refrigerated compartment (11); An ion generator (30) is installed on the housing (10); the ion generator (30) comprises: At least one set of opposing electrode groups (200), the opposing electrode group (200) comprising a first electrode (210) and a second electrode (220), the first electrode (210) and the second electrode (220) being arranged opposite to each other; the first electrode (210) and the second electrode (220) being used together to ionize air to generate plasma; A third electrode (300) for generating negative air ions; the third electrode (300) is located outside the region between the first electrode (210) and the second electrode (220); A driving circuit board (400) electrically connected to the first electrode (210), the second electrode (220) and the third electrode (300) respectively; A control device is electrically connected to the refrigeration fan and the driving circuit board (400) respectively, and the control device is configured as follows: When the refrigeration fan is running, the driving circuit board (400) is controlled to operate in a first sterilization mode; wherein the first sterilization mode is to control the driving circuit board (400) to intermittently supply power to the third electrode (300).

2. The refrigerator according to claim 1, characterized in that: The control device is also configured to: When the refrigeration fan is running, the driving circuit board (400) is controlled to operate in a second sterilization mode; wherein the second sterilization mode is to control the driving circuit board (400) to intermittently power the first electrode (210) and the second electrode (220); and the voltage value between the first electrode (210) and the second electrode (220) is a first voltage value.

3. The refrigerator according to claim 1, characterized in that: The control device is also configured to: When the refrigeration fan is turned off and the door (20) is closed, the driving circuit board (400) is controlled to operate in a second sterilization mode; wherein the second sterilization mode is to control the driving circuit board (400) to intermittently supply power to the first electrode (210) and the second electrode (220); and the voltage value between the first electrode (210) and the second electrode (220) is a first voltage value.

4. The refrigerator according to claim 3, characterized in that: The second sterilization mode is to control the driving circuit board (400) to intermittently supply power to the first electrode (210) and the second electrode (220) according to a preset first duty cycle, and to run a first preset number of cycles; The first duty cycle is a ratio of a power supply duration of the first electrode (210) and the second electrode (220) to a first cycle duration, and the first cycle duration is a sum of a power supply duration and a power-off duration of the first electrode (210) and the second electrode (220).

5. The refrigerator according to any one of claims 2 to 4, characterized in that: The opposed electrode group (200) is provided in plurality; the control device is further configured to: When the door (20) is closed, the driving circuit board (400) is controlled to operate in a clean odor mode; wherein the clean odor mode includes controlling the driving circuit board (400) to intermittently supply power to the first electrode (210) and the second electrode (220) of at least one of the opposing electrode groups (200); wherein the voltage value between the first electrode (210) and the second electrode (220) is a second voltage value, and the second voltage value is less than the first voltage value; or, The control device is also configured to: In an odd number of operation cycles, controlling the driving circuit board (400) to operate in accordance with the first sterilization mode and / or the second sterilization mode; In an even-numbered operation cycle and when the door (20) is closed, the driving circuit board (400) is controlled to operate in a clean odor mode; wherein the clean odor mode includes controlling the driving circuit board (400) to intermittently supply power to the first electrode (210) and the second electrode (220); wherein the voltage value between the first electrode (210) and the second electrode (220) is a second voltage value, and the second voltage value is less than the first voltage value; The operation cycle includes a first time period and a second time period, the first time period is a time period when the refrigeration fan is running, and the second time period is a time period when the refrigeration fan is turned off.

6. The refrigerator according to claim 5, characterized in that: The odor-free mode includes controlling the driving circuit board (400) to intermittently supply power to the first electrode (210) and the second electrode (220) according to a preset second duty cycle, and running a second preset number of cycles; The second duty cycle is a ratio of a power supply duration of the first electrode (210) and the second electrode (220) to a second cycle duration, and the second cycle duration is a sum of a power supply duration and a power-off duration of the first electrode (210) and the second electrode (220).

7. The refrigerator according to any one of claims 1 to 4, characterized in that: The refrigerator further comprises an air duct structure (500), wherein the air duct structure (500) is configured to form a return air port (506) and a return air duct (505), and the return air duct (505) is connected to the refrigerating compartment (11) through the return air port (506); A light source and a light intensity sensor are provided at one end of the return air duct (505) close to the return air outlet (506), and the light source and the light intensity sensor are respectively located on two sides of the return air duct (505) perpendicular to the extension direction; the light source provides light for the return air duct (505); and the light intensity sensor is used to detect the light intensity value of the return air duct (505); The control device is electrically connected to the light source and the light intensity sensor respectively, and the control device is further configured as follows: When the cooling fan is turned off, controlling the light source to turn on; Acquiring the light intensity value of the return air duct (505) by means of the light intensity sensor; When the light intensity value meets a set condition, controlling the driving circuit board (400) to operate according to the first sterilization mode; The setting conditions include at least one of the following: The light intensity value is less than a preset light intensity threshold; The light intensity values ​​are continuously acquired for a preset number of times at preset monitoring time intervals, and the light intensity values ​​for the preset number of times show a downward trend.

8. The refrigerator according to any one of claims 1 to 4, characterized in that: The control device is configured to: When the refrigeration fan is running, if the door body (20) is opened, the driving circuit board (400) is controlled to suspend the first sterilization mode; When the door body (20) is closed and the closing time of the door body (20) reaches a preset first time, the driving circuit board (400) is controlled to continue operating in the first sterilization mode until the refrigeration fan is turned off.

9. The refrigerator according to any one of claims 1 to 4, characterized in that: The ion generator (30) further comprises a housing component (100), wherein the housing component (100) is structured to form a receiving chamber (101) and a communication port (102), wherein the receiving chamber (101) is communicated with the refrigerating chamber (11) via the communication port (102); The counter electrode and the driving circuit board (400) are both installed in the accommodating cavity (101); The outer surface of the shell component (100) facing away from the accommodating cavity (101) is configured to form a recessed portion (103), and the recessed portion (103) forms a through structure (104); Part of the third electrode (300) is located in the accommodating cavity (101), and the third electrode (300) is exposed to the outer shell component (100) through the through structure (104).

10. A method for controlling a refrigerator, characterized in that: The refrigerator comprises: A box body (10) is structured to form a refrigerated compartment (11) having a take-in and put-out opening; A door body (20) is hinged to the box body (10) to open or close the access opening; A refrigeration system, arranged in the box (10), for lowering the air temperature of the refrigerated compartment (11); A refrigeration fan installed on the box body (10); the refrigeration fan is configured to blow cold air passing through the evaporator of the refrigeration system into the refrigerated compartment (11); An ion generator (30) is installed on the housing (10); the ion generator (30) comprises: At least one set of opposing electrode groups (200), the opposing electrode group (200) comprising a first electrode (210) and a second electrode (220), the first electrode (210) and the second electrode (220) being arranged opposite to each other; the first electrode (210) and the second electrode (220) being used together to ionize air to generate plasma; A third electrode (300) for generating negative air ions; the third electrode (300) is located outside the region between the first electrode (210) and the second electrode (220); A driving circuit board (400) electrically connected to the first electrode (210), the second electrode (220) and the third electrode (300) respectively; A control device, electrically connected to the refrigeration fan and the driving circuit board (400) respectively; The control method comprises: When the refrigeration fan is running, the driving circuit board (400) is controlled to operate in a first sterilization mode; wherein the first sterilization mode is to control the driving circuit board (400) to intermittently supply power to the third electrode (300).

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