Refrigerator

Abstract

The application relates to the refrigeration technical field, in particular to a refrigerator. The refrigerator of the application is provided with an ion generator, which ionizes to generate active substances to sterilize and purify the refrigeration chamber. The first electrode and the second electrode of the opposite electrode group of the ion generator corona discharge to generate negative ions, ozone and the like. The third electrode has water absorption and conductivity, and when a voltage is applied to the third electrode, water in the third electrode is subjected to Rayleigh splitting under a high-voltage electric field to generate nanoscale water particles. The water particles are ionized into hydroxyl radicals by the high-voltage electric field, and the hydroxyl radicals combine with the water particles to form water molecular cluster-wrapped hydroxyl radicals. The negative ions generated by the third electrode and the negative ions generated by the opposite electrode group combine with the water particles to form water molecular cluster-wrapped negative ions. The water molecular cluster-wrapped negative ions and hydroxyl radicals can prolong the existence time, and further prolong the sterilization and purification range and time, so that the sterilization and purification capacity is improved.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and more particularly to a refrigerator. Background Technology

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature, keeping food or other items at a consistently low temperature. During long-term food storage, bacteria and odors inevitably develop in refrigerators. Therefore, more and more refrigerators are equipped with sterilization and purification modules.

[0003] In related technologies, refrigerators are equipped with ion generators. The metal electrodes of the ion generators are used to generate negative ions and ozone through corona discharge, which have the functions of removing bacteria and odors.

[0004] However, the ions generated by corona discharge of metal electrodes have poor sterilization effect. Utility Model Content

[0005] This application provides a refrigerator to improve the sterilization effect of an ion generator.

[0006] In a first aspect, embodiments of this application provide a refrigerator, which includes:

[0007] The cabinet is constructed to form a cold storage compartment with an access opening;

[0008] The door is hinged to the box body to open or close the loading / unloading port;

[0009] An ion generator is installed in the housing; the ion generator includes:

[0010] The outer shell component is configured to form a receiving cavity and a vent, the vent connecting the receiving cavity and the outer space of the outer shell component;

[0011] A counter electrode assembly is located within the accommodating cavity. The counter electrode assembly includes a first electrode and a second electrode. A discharge gap is formed between the first electrode and the second electrode, and the first electrode and the second electrode are used together to ionize the air within the discharge gap when energized.

[0012] The third electrode is hygroscopic and conductive; the third electrode is used to ionize air and adsorb and ionize water in the air; the third electrode is mounted on the housing component, and at least a portion of the third electrode is located on the outside of the housing component.

[0013] The refrigerator in this embodiment is equipped with an ion generator, which ionizes to produce active substances to sterilize and purify the refrigerator compartment. The ion generator includes an outer shell, a counter electrode assembly, and a third electrode. The first and second electrodes of the counter electrode assembly undergo corona discharge to generate negative ions and ozone, thus achieving a certain degree of sterilization and purification.

[0014] The third electrode is hygroscopic, capable of adsorbing moisture from the refrigerator. Furthermore, it is conductive; when a voltage is applied to the third electrode, the water within it undergoes Rayleigh cleavage under a high-voltage electric field, generating nanoscale water particles. These water particles are ionized by the high-voltage electric field into hydroxyl radicals, which then combine with the water particles to form hydroxyl radicals encapsulated by water molecule clusters. The negative ions generated by the third electrode and the opposing electrode also combine with the water particles to form negative ions encapsulated by water molecule clusters. These negative ions and hydroxyl radicals extend their lifespan, thereby prolonging the scope and duration of sterilization and purification, thus enhancing the sterilization and purification capabilities.

[0015] In some embodiments of this application, the cabinet includes: a cabinet liner and an air duct plate, the air duct plate being installed inside the cabinet liner and forming an air duct with the cabinet liner to allow cold air from the evaporation chamber to flow into the cold storage compartment; the front side of the air duct plate forms the cold storage compartment;

[0016] The outer casing component is fixed to the air duct plate, and the portion of the third electrode located on the outside of the outer casing component faces away from the air duct plate.

[0017] This configuration allows the ion generator to be mounted on the air duct plate, enabling it to be directly installed inside the housing along with the air duct plate, simplifying the assembly of the ion generator. Furthermore, the third electrode is positioned away from the air duct plate on the outer casing, allowing it to be exposed in the air duct for better air discharge and adsorption of moisture from the air, thereby improving the efficiency of the third electrode in generating active substances.

[0018] In some embodiments of this application, a portion of the outer shell component protrudes outward to form a protrusion, the protrusion encloses a receiving space, and the receiving space forms a portion of the receiving cavity; the protrusion is provided with the vent.

[0019] A portion of the first electrode is located within the accommodating space.

[0020] A portion of the outer casing protrudes outward to form a protrusion; a recessed receiving space is formed on one side of the receiving cavity, increasing the volume of the receiving cavity and providing space for the arrangement of the first electrode. While ensuring adaptation to the shape of the first electrode, the partial protrusion allows the outer casing to maintain a compact size without significantly increasing its external volume, resulting in a smaller installation footprint. Furthermore, the protrusion is equipped with a vent, allowing the receiving space to communicate with the external space of the outer casing, enabling ions generated by ionization to quickly diffuse into the air duct, facilitating ion diffusion.

[0021] In some embodiments of this application, the air duct plate is configured to form a mounting groove, and the outer casing component can be matched and installed in the mounting groove;

[0022] The air duct plate is constructed to form a groove, which forms part of the mounting groove; the protrusion mates with the groove.

[0023] By forming a groove in the air duct plate, which mates with the protrusion of the outer casing component, the installation of the ion generator can be guided, thus improving the ease of assembly of the ion generator.

[0024] In some embodiments of this application, the second electrode is plate-shaped and has a through hole;

[0025] The first electrode includes a central metal pillar and at least one discharge section. The discharge section includes a plurality of discharge electrode pillars, which are respectively connected to the central metal pillar and are arranged circumferentially around the central metal pillar. The central metal pillar extends from the accommodating cavity through the through hole into the receiving space.

[0026] One of the discharge sections is located within the containment space, and the tip of the discharge electrode post faces the second electrode and forms the discharge gap.

[0027] The second electrode in this embodiment is plate-shaped and can discharge simultaneously with multiple discharge posts of the first electrode, increasing ion generation efficiency and thus facilitating the generation of negative ions and reactive oxygen species, thereby improving sterilization and purification efficiency. Furthermore, the second electrode has a through hole, allowing the central metal post of the first electrode to pass through, so that a portion of the first electrode is located within the receiving space.

[0028] In some embodiments of this application, the discharge electrode post includes an arc-shaped column segment and a straight column segment. The arc-shaped column segment connects the straight column segment and the intermediate metal column, and the arc-shaped column segment protrudes away from the second electrode. There is a gap between the straight column segment and the intermediate metal column, and the end of the straight column segment away from the arc-shaped column segment forms a tip.

[0029] In this embodiment of the application, the discharge electrode post is provided with an arc column segment. While realizing the electrical connection between the straight column segment and the central metal column, it also makes the straight column segment and the central metal column have a gap, and makes the tip of the straight column segment face the second electrode, thereby discharging with the second electrode.

[0030] In some embodiments of this application, two discharge sections are provided, each located on one side of the second electrode, and the two discharge sections are arranged symmetrically with respect to the second electrode.

[0031] The first electrode in this embodiment of the application has two discharge sections that share a second electrode, increasing the number of discharge positions, improving discharge efficiency and negative ion quantity, thereby enhancing the sterilization and purification effect. Furthermore, the structure is compact, does not increase the thickness of the ion generator, and does not require additional space occupancy in the depth direction of the refrigerator.

[0032] In some embodiments of this application, multiple opposing electrode groups are provided, and the multiple opposing electrode groups are arranged in a staggered manner within the accommodating cavity;

[0033] The housing component is configured to form a plurality of the protrusions such that a portion of the first electrode of each of the opposing electrode groups is located within one of the receiving spaces;

[0034] The plurality of protrusions are arranged asymmetrically with respect to the outer shell component.

[0035] The opposing electrode assembly in this embodiment is provided with multiple electrodes, which can increase the generation of active substances such as negative ions and hydroxyl radicals, thereby increasing the sterilization and purification effect. Moreover, the multiple protrusions are asymmetrically arranged with respect to the outer shell component, which can make the installation of the outer shell component foolproof, ensuring that the third electrode faces the air duct, which is conducive to the absorption of moisture and the diffusion of active substances.

[0036] In some embodiments of this application, the outer casing component is provided with fixing holes;

[0037] A fixing member is provided inside the accommodating cavity. The fixing member is connected to the outer shell component and is opposite to the fixing hole.

[0038] The fixing hole extends toward the accommodating cavity and penetrates the fixing member;

[0039] The third electrode is mounted in the fixing hole.

[0040] This embodiment of the application uses a fixing hole in the outer shell component to install the third electrode, resulting in a simple structure. Furthermore, by providing a fixing member within the accommodating cavity, the fixing hole extends along its length, thereby increasing the connection length between the fixing hole and the third electrode, thus improving the stability of the third electrode installation.

[0041] Secondly, embodiments of this application provide a refrigerator, which includes:

[0042] The cabinet is constructed to form a cold storage compartment and an evaporation chamber for evaporators, and is also constructed to form an air duct for cold air from the evaporation chamber to flow into the cold storage compartment;

[0043] An ion generator is installed inside the air duct; the ion generator includes:

[0044] The outer shell component is configured to form a receiving cavity and a vent, the vent connecting the receiving cavity and the air duct;

[0045] A counter electrode assembly is installed in the accommodating cavity; the two electrodes of the counter electrode assembly are arranged opposite each other and ionize the air;

[0046] The third electrode is hygroscopic and conductive; the third electrode is used to ionize air and water, the third electrode is fixed to the outer shell component, and a portion of the third electrode is located on the outside of the outer shell component and exposed in the air duct;

[0047] A portion of the outer casing protrudes outward to provide accommodating space for portions of the electrodes of the opposing electrode assembly; the outer casing is compatiblely mounted to the housing.

[0048] The refrigerator in this embodiment is equipped with an ion generator, which ionizes to produce active substances to sterilize and purify the refrigerator compartment. The ion generator includes an outer shell, a counter electrode assembly, and a third electrode. The first and second electrodes of the counter electrode assembly undergo corona discharge to generate negative ions and ozone, thus achieving a certain degree of sterilization and purification.

[0049] The third electrode is hygroscopic, capable of adsorbing moisture from the refrigerator. Furthermore, it is conductive; when a voltage is applied to the third electrode, the water within it undergoes Rayleigh cleavage under a high-voltage electric field, generating nanoscale water particles. These water particles are ionized by the high-voltage electric field into hydroxyl radicals, which then combine with the water particles to form hydroxyl radicals encapsulated by water molecule clusters. The negative ions generated by the third electrode and the opposing electrode also combine with the water particles to form negative ions encapsulated by water molecule clusters. These negative ions and hydroxyl radicals extend their lifespan, thereby prolonging the scope and duration of sterilization and purification, thus enhancing the sterilization and purification capabilities.

[0050] On the one hand, the outer shell protrudes outward, providing space for the electrodes of the opposing electrode assembly, thus allowing for more ample space for electrode arrangement. On the other hand, the outer shell can be fitted into the housing, ensuring that the third electrode faces inward into the air duct, thereby ensuring that the third electrode is exposed within the air duct and can better absorb moisture from the airflow and ionize the air. This design prevents incorrect installation, improving the convenience and accuracy of assembling the ion generator into the housing, and avoiding incorrect installation of the outer shell, which could affect the ionization effect of the third electrode. Attached Figure Description

[0051] Figure 1 This application provides structural schematic diagrams of refrigerators for some embodiments.

[0052] Figure 2Exploded views of the inner liner and its internal structure provided for some embodiments of this application;

[0053] Figure 3 This is a schematic diagram of the structure of the air duct plate provided in some embodiments of this application;

[0054] Figure 4 This is a schematic diagram of the structure of an ion generator provided in some embodiments of this application;

[0055] Figure 5 for Figure 4 A schematic diagram of the structure of the ion generator without the cover plate;

[0056] Figure 6 for Figure 4 A schematic diagram of the structure of a medium-ion generator from another perspective;

[0057] Figure 7 A front view of an ion generator provided in some embodiments of this application;

[0058] Figure 8 for Figure 7 AA section view in the middle;

[0059] Figure 9 for Figure 7 BB section view in the middle;

[0060] Figure 10 A partial schematic diagram of an air duct plate provided in some embodiments of this application;

[0061] Figure 11 This is a schematic diagram of the structure of the counter electrode assembly provided in some embodiments of this application;

[0062] Figure 12 This is a schematic diagram of the structure of the first electrode provided in some embodiments of this application.

[0063] Explanation of reference numerals in the attached figures:

[0064] 10: Box body; 11: Refrigerated compartment; 12: Inner liner;

[0065] 20: Door body;

[0066] 30: Ion generator;

[0067] 40: Air duct assembly; 41: Air duct plate; 42: Air duct cover; 43: Air duct groove; 44: Mounting groove; 441: Groove portion; 442: Main body groove portion;

[0068] 100: Outer shell component; 101: Receiving cavity; 102: Vent; 110: Shell portion; 111: First side plate; 112: Second side plate; 113: Third side plate; 114: Partition plate; 115: Limiting plate; 120: Cover plate portion; 130: Fixing member; 131: Fixing hole; 132: Reinforcing member; 140: Recessed portion; 150: Protruding portion; 151: Accommodating space; 160: Main shell portion; 170: Raised ridge;

[0069] 200: Opposite electrode assembly; 210: First electrode; 211: Intermediate metal pillar; 212: Discharge electrode pillar; 2121: Arc-shaped column section; 2122: Straight column section; 220: Second electrode; 221: Through hole;

[0070] 300: Third electrode;

[0071] 400: Driver circuit board. Detailed Implementation

[0072] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0073] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0074] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0075] Refrigerators generate various odors during food storage, especially from stale or spoiled food, which emits a rotten and unpleasant smell. When these odors mix, they can create unpleasant smells, affecting the air quality within the refrigerator and consequently impacting the storage of other items. More importantly, rotten food breeds a large number of bacteria, compromising food safety. The unpleasant odors emanating from the refrigerator after opening the door severely impact the user experience.

[0076] The sterilization and purification technologies in refrigerators mainly include ion technology, photocatalytic technology, cold catalyst technology, and light wave sterilization technology. Among them, ion technology has received widespread attention because it has both sterilization and purification functions, does not require additional light source irradiation, and is not limited by temperature.

[0077] An ion generator produces ions through discharge, which serve to sterilize and deodorize. The sterilization and purification effect of the ion generator is closely related to the characteristics of its discharge electrodes and the negative ions and active oxygen species it generates.

[0078] Typically, an ion generator is equipped with two opposing needle-tip electrodes. The needle-tip electrodes generate negative ions and active oxygen species (such as ozone and hydroxyl radicals) through corona discharge to achieve sterilization and deodorization.

[0079] However, negative ions have a short lifespan and limited range of action, restricting their sterilization and purification effects. While superoxide radicals, among reactive oxygen species, have the strongest oxidizing power, they quickly annihilate in the air. Ozone, on the other hand, poses a risk of exceeding safe concentrations, limiting the operating voltage and continuous operating time of ion generators.

[0080] Therefore, it is necessary to provide an ion generator that can extend the lifespan of negative ions and superoxide radicals, suppress the risks of excessive ozone concentration, and improve sterilization and purification effects.

[0081] Among them, the high-voltage pack and discharge electrodes of the ion generator have the greatest impact on the generation of negative ions and reactive oxygen species. Common discharge electrodes mainly include metal needle electrodes, metal-ceramic-metal DBD discharge electrodes, and carbon brush air discharge electrodes.

[0082] Therefore, this application provides a dual-ionization ion generator. Based on the corona discharge of the opposing electrode, a third electrode with water-absorbing and conductive properties is introduced. The high-voltage discharge of the third electrode splits water into nanoscale water particles. These water particles are ionized by the high-voltage electric field into hydroxyl radicals, which then combine with the water particles to form hydroxyl radicals encapsulated by water molecule clusters. Furthermore, negative ions combine with the water particles to form negative ions encapsulated by water molecule clusters. The hydroxyl radicals and negative ions encapsulated by water molecule clusters have a long duration of action, increasing the range and duration of negative ion activity, thereby enhancing the sterilization and purification effects.

[0083] In addition, by changing the shape and number of the opposing electrodes, the production of negative ions can be increased, thereby achieving ionization efficiency in the small space inside the refrigerator's air duct.

[0084] Furthermore, by designing the shape of the outer shell of the ion generator to match the shape of the electrode group, the outer shell has a foolproof function, ensuring that the third electrode is set away from the air duct plate, thus avoiding the third electrode being installed backwards and affecting the water absorption performance and the diffusion performance of negative ions.

[0085] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0086] Combination Figure 1 Some embodiments of this application provide a refrigerator, which includes a cabinet 10, the cabinet 10 being configured to form a storage compartment with an access opening for storing items.

[0087] Multiple storage compartments can be provided to expand storage space. Depending on the storage temperature of the storage compartments, the storage compartments may include at least one refrigerated compartment 11 and at least one frozen compartment. The internal temperature of the refrigerated compartment 11 can be maintained between approximately 0°C and 5°C for storing items in refrigeration mode; the internal temperature of the frozen compartment can be maintained between approximately -30°C and 0°C for storing items in freezing mode.

[0088] In some possible implementations, at least one of the storage compartments may also be configured as a vacuum chamber or a variable temperature chamber, etc., which will not be described in detail in the embodiments of this application.

[0089] For example, there may be two storage compartments, which may be stacked vertically or arranged side by side horizontally. One of them may be a refrigerator compartment 11, and the other may be a freezer compartment.

[0090] In some embodiments, combined with Figure 1 and Figure 2 The refrigerator body 10 may include a refrigerator liner 12 and a refrigerator shell. The refrigerator liner 12 may be configured to form a refrigerator compartment 11 with a front opening. The refrigerator shell may be attached to the outside of the refrigerator liner 12 to form the appearance of the refrigerator.

[0091] The cabinet 10 may also include a heat insulation layer, which can be disposed between the inner cabinet 12 and the outer cabinet. The heat insulation layer can keep the storage compartment warm, so as to minimize the heat exchange between the storage compartment and the outside of the refrigerator, which helps to ensure the cooling effect of the refrigerator.

[0092] The refrigerator in this embodiment may further include a refrigeration system for reducing the air temperature in the storage compartment. Exemplarily, the refrigeration system may be housed within the cabinet 10. The refrigeration system may include a compressor, condenser, expansion valve, and evaporator connected in a cycle.

[0093] During refrigeration system operation, the compressor compresses refrigerant vapor, generating high-temperature, high-pressure refrigerant vapor, and delivers it to the condenser. The condenser liquefies the high-temperature, high-pressure refrigerant vapor, generating high-temperature, low-pressure refrigerant liquid, which is then delivered to the expansion valve. The expansion valve reduces the pressure of the refrigerant liquid, transforming it from a high-pressure, low-temperature liquid into a low-pressure, low-temperature liquid, which is then delivered to the evaporator. The evaporator receives the low-pressure, low-temperature refrigerant liquid and boils it under isobaric conditions, absorbing heat and vaporizing to form refrigerant vapor, thereby lowering the temperature inside the storage compartment.

[0094] Continue to refer to Figure 1 The refrigerator in this embodiment may further include a door 20, which is rotatably connected to the cabinet 10 to open or close the refrigerator compartment 11. Exemplarily, the door 20 is hinged to the cabinet 10.

[0095] Each cold storage compartment 11 may be provided with one door 20; or, each cold storage compartment 11 may be provided with two doors 20, which may rotate in opposite directions to open or close the cold storage compartment 11.

[0096] Of course, in some possible implementations, the storage room is equipped with drawers, and the outer ends of the drawers form doors.

[0097] In some embodiments, the door 20 may include an inner door liner. When the door 20 is closed, the inner door liner faces the refrigerator compartment 11.

[0098] The door 20 may include a door shell; the door shell may be attached to the outside of the door liner to form the appearance of the door 20. The door shell may be rotatably connected to the cabinet 10 to allow the door 20 to open or close the refrigerator compartment 11.

[0099] The door body 20 may also include a door insulation component, which can be disposed within the gap between the inner door liner and the outer door shell. The door insulation component can insulate the refrigerator compartment 11 to minimize heat exchange between the refrigerator compartment 11 and the outside of the refrigerator, thereby helping to ensure the refrigerator's cooling effect. The door insulation component can be a foam layer.

[0100] The refrigerator in this embodiment may also include an ion generator 30, which is installed in the cabinet 10 and configured to generate active substances to purify and sterilize.

[0101] In some embodiments, the ion generator 30 can be installed inside the cold storage compartment 11, which allows the active substances to act directly on the cold storage compartment 11. The short path of the active substances helps to improve the sterilization and purification rate.

[0102] In other embodiments, the ion generator 30 can also be installed in the space between the inner liner 12 and the outer shell, so as to avoid the ion generator 30 occupying the storage space in the cold storage compartment 11.

[0103] Combination Figure 2 The housing 10 is also configured to form an evaporation chamber for evaporators and an air duct for cold air from the evaporation chamber to flow into the cold storage compartment 11. An ion generator 30 is installed in the air duct. The active substances generated by the ion generator 30 enter the cold storage compartment 11 with the airflow in the air duct, playing a role in sterilization and purification.

[0104] In some possible implementations, the housing 10 also includes an air duct assembly 40 located within the inner liner 12. The air duct assembly 40 is disposed opposite to the rear wall of the inner liner 12 and encloses the inner liner 12 to form an air duct. A refrigerated compartment 11 is formed on the front side of the air duct assembly 40.

[0105] The air duct assembly 40 is configured to form an air outlet to connect the air duct and the cold storage compartment 11, so that cold air in the air duct can enter the cold storage compartment 11 through the air outlet, thereby bringing the active substances in the air duct into the cold storage compartment 11.

[0106] In some embodiments, the air duct assembly 40 may include an air duct plate 41, which is recessed to form an air duct groove 43. The air duct groove 43 faces the rear wall of the inner liner 12 and surrounds the inner liner 12 to form an air duct. The front side of the air duct plate 41 forms a cold storage compartment 11.

[0107] Among them, the air duct plate 41 can be a foam board, which can not only form an air duct, but also has heat insulation and heat preservation properties.

[0108] The air duct assembly 40 may also include an air duct cover 42, which is disposed on the front side of the air duct plate 41. The air duct cover 42 forms the rear wall appearance of the cold storage compartment 11 and can serve to cover and protect the air duct plate 41. The air duct cover 42 and the air duct plate 41 can be snapped together, and the connection method is simple and reliable.

[0109] The air duct cover 42 and the air duct plate 41 are respectively provided with openings. The openings on the air duct cover 42 and the air duct plate 41 are opposite to each other along the depth direction of the refrigerator to form an air outlet.

[0110] In some embodiments, the ion generator 30 can be installed on the air duct plate 41. In this way, the ion generator 30 is first installed on the air duct plate 41, and then the air duct structure is installed inside the cabinet liner 12, making the installation of the ion generator 30 simple and convenient; moreover, the ion generator 30 is not exposed in the cold storage compartment 11.

[0111] In some possible implementations, the ion generator 30 is located in the air duct near the air outlet, so that the active substances generated by the ion generator 30 can quickly enter the cold storage compartment 11.

[0112] Reference Figure 3 The air duct plate 41 has a mounting groove 44 on the side facing the rear wall of the liner 12. The mounting groove 44 opens to the rear and has an opening on its side to connect to the ventilation duct. The ion generator 30 is installed in the mounting groove 44.

[0113] The ion generator 30 is snapped into the air duct plate 41, thereby fixing the ion generator 30 within the mounting groove 44. Alternatively, the ion generator 30 is interference-fitted into the mounting groove 44, thereby fixing the ion generator 30 within the mounting groove 44.

[0114] The ion generator 30 is connected to the air duct through a side opening, allowing the active material generated by the ion generator 30 to enter the air duct. Furthermore, the ion generator 30 is not located in the gas flow path of the air duct, which avoids increasing airflow resistance by placing the ion generator 30 there.

[0115] Combination Figure 4 and Figure 5 The ion generator 30 includes: a housing component 100, which is configured to form a receiving cavity 101 and a vent 102, the vent 102 connecting the receiving cavity 101 and the outer space of the housing component 100.

[0116] When the ion generator 30 is installed in the mounting slot 44, the vent 102 connects the accommodating cavity 101 and the air duct.

[0117] The outer shell component 100 can be flat and arranged parallel to the vertical plane, which can reduce the space occupied by the outer shell component 100 in the depth direction of the refrigerator. The planes defining the height and width directions of the refrigerator are parallel to the vertical plane.

[0118] Combination Figure 6 The outer shell component 100 is a cuboid shell. The outer shell component 100 has a first dimension L1, a second dimension L2, and a third dimension L3. The first dimension L1 is the dimension of the outer shell component 100 along a first direction D1, the second dimension L2 is the dimension of the outer shell component 100 along a second direction D2, and the third dimension L3 is the dimension of the outer shell component 100 along a third direction D3. The first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other.

[0119] The first dimension L1 of the outer casing component 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 outer casing component 100 is smaller. Among them, the second dimension L2 can be smaller than the third dimension L3.

[0120] Combination Figure 3 and Figure 6 When the outer casing component 100 is installed in the mounting groove 44, the plane defined by the second direction D2 and the third direction D3 can be parallel to the vertical plane of the refrigerator, so that the longer side of the outer casing component 100 is exposed in the air duct, which is beneficial to ensuring the diffusion rate of the active material. The first dimension L1 is small, and the first direction D1 is parallel to the depth direction of the refrigerator, which allows the ion generator 30 to have a relatively small dimension in the depth direction of the refrigerator, which is beneficial to installing the outer casing component 100 on the air duct plate 41 with limited thickness.

[0121] Reference Figure 5 and Figure 6 The outer casing component 100 includes a casing portion 110 and a cover portion 120. The casing portion 110 is configured to form a recessed cavity, and the cover portion 120 covers the casing portion 110 to form an accommodating cavity 101. The casing portion 110 and the cover portion 120 can be snapped together, and the connection method is simple and reliable.

[0122] In this embodiment, a receiving cavity 101 is formed by setting a housing portion 110 and a cover portion 120. The housing portion 110 forms a recessed chamber, which facilitates the installation of the internal structure of the ion generator 30 on one side of the housing portion 110, ensuring stable and reliable installation.

[0123] In some other possible implementations of this application, the outer shell component 100 may include two half-shells, each of which is configured to form a recessed cavity, and the two half-shells are fixedly connected to jointly enclose the receiving cavity 101.

[0124] In some possible implementations of this application, the outer shell member 100 is generally a rectangular parallelepiped shell. Referring to... Figure 4 and Figure 5 The outer casing member 100 may include two first side plates 111, which are opposite to each other and spaced apart along a first direction. The two first side plates 111 are parallel to a plane defined by a second direction and a third direction.

[0125] Reference Figure 4 and Figure 5 The outer casing component 100 may further include two second side plates 112, which are opposite to each other and spaced apart along a second direction. The two second side plates 112 are respectively connected to the two ends of the two first side plates 111 along the second direction. The two second side plates 112 may be parallel to a plane defined by the first direction and a third direction.

[0126] Reference Figure 4 and Figure 5The outer casing component 100 may further include two third side plates 113, which are opposite to each other and spaced apart along a third direction. The two third side plates 113 are respectively connected to the two ends of the two first side plates 111 along the third direction. The two third side plates 113 may be parallel to the plane defined by the first direction and the second direction.

[0127] Thus, the two first side plates 111, the two second side plates 112, and the two third side plates 113 enclose and form a rectangular shell component 100, which has a regular structure and is easy to process and install.

[0128] The housing portion 110 may be formed by two second side plates 112, two third side plates 113 and a first side plate 111, and the cover portion 120 may be formed by another first side plate 111.

[0129] Vents 102 are provided on at least one of the two first side plates 111, the two second side plates 112, and the two third side plates 113. For example, the two first side plates 111 are respectively provided with vents 102 to form a gas convection channel, so that the gas exchange between the accommodating cavity 101 and the air duct is smoother.

[0130] Continue to refer to Figure 5 The ion generator 30 may further include a counter electrode assembly 200 located within the accommodating cavity 101. The two electrodes of the counter electrode assembly 200 are arranged opposite each other and form a discharge interval. The two electrodes work together to ionize the air within the discharge interval when energized.

[0131] The counter electrode assembly 200 includes a first electrode 210 and a second electrode 220, a discharge gap is formed between the first electrode 210 and the second electrode 220, and the first electrode 210 and the second electrode 220 are used together to ionize the air in the discharge gap when energized.

[0132] At least a portion of the first electrode 210 is opposite to and spaced from the second electrode 220, thereby forming a discharge gap.

[0133] For example, at least a portion of the first electrode 210 and the second electrode 220 are positioned opposite each other and spaced apart along a third direction.

[0134] The first electrode 210 and the second electrode 220 are conductors and can be made of metal, such as 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 conductors in the form of strips, rings, sheets, needles, etc.

[0135] 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 charge accumulation. When the charge accumulation on the needle-shaped electrode exceeds a certain level, it discharges. After discharge, the charge ionizes the surrounding gas to form plasma, and the charge on the needle-shaped electrode instantly becomes zero, and then it enters the next charge accumulation, charging and discharging cycle.

[0136] One set of counter electrode group 200 is provided, and the structure is simple.

[0137] Multiple counter electrode groups 200 can be provided, which helps to increase the number of discharged ions. Multiple counter electrode groups 200 can be connected to the same power supply terminal, so that the same voltage value is applied to the multiple counter electrode groups 200. Alternatively, the voltage value of at least one counter electrode group 200 may be different from the voltage values ​​applied to the other counter electrode groups 200, thereby forming different discharge voltages.

[0138] When a high voltage is applied between the first electrode 210 and the second electrode 220, electrons in neutral gas molecules (such as O2 and N2) in the air are "torn apart," forming free electrons and positively charged gas ions (such as O2). + N2 + This process is called ionization. Free electrons combine with surrounding neutral oxygen molecules to form negative oxygen ions.

[0139] In addition to generating negative ions, the discharge process of the first electrode 210 and the second electrode 220 also produces reactive oxygen species. For example, ozone: high-energy electrons collide with oxygen molecules, causing them to decompose into oxygen atoms. These oxygen atoms then combine with another oxygen molecule to form ozone. Another example is the ionization of water molecules in the air to produce hydroxyl radicals.

[0140] Among them, negative ions, ozone, and hydroxyl radicals are all active substances.

[0141] Negative ions carry a negative charge, while fine particulate matter, dust, and smoke floating in the air inside a refrigerator are usually positively charged or neutral. The ions will actively adsorb onto these particles, causing them to settle and playing a role in purification and auxiliary sterilization.

[0142] Ozone has oxidizing properties; it can oxidize and decompose the phospholipids and proteins on the cell walls and cell membranes of bacteria, viruses, and other microorganisms, causing cell structure rupture, leakage of contents (such as enzymes and DNA), and thus death. For viruses, it destroys their capsid proteins and nucleic acids. Thus, ozone can act as a sterilizer. Ozone molecules can actively attack odorous organic molecules (such as ethylene, ammonia, and hydrogen sulfide), decomposing them into odorless small molecules such as carbon dioxide and water through oxidation reactions, thereby achieving a purification effect.

[0143] Hydroxyl radicals have strong oxidizing power, which can be used to sterilize and purify the body.

[0144] Continue to refer to Figure 4 The ion generator 30 in this embodiment may further include a third electrode 300, which has water absorption and conductivity; the third electrode 300 is used to ionize air and adsorb and ionize water in the air.

[0145] In some possible implementations, the third electrode 300 may include a conductive material and a water-absorbing material, with the conductive material being ionized and the water-absorbing material being used to absorb moisture from the air.

[0146] For example, the third electrode 300 may include modified carbon fiber, water-absorbing carbon fiber, and be formed using an adhesive or the like.

[0147] For example, the third electrode 300 may be formed by twisting together conductive fibers and absorbent fibers.

[0148] The third electrode 300 is located outside the discharge interval region between the first electrode 210 and the second electrode 220. This can be understood as meaning that the third electrode 300 cannot form a discharge with the first electrode 210 and the second electrode 220.

[0149] like Figure 4 As shown, a partition plate 114 is provided inside the accommodating cavity 101. The partition plate 114 is arranged parallel to the third side plate 113, and there is a gap between the partition plate 114 and the two third side plates 113. The opposing electrode group 200 and the third electrode 300 are respectively located on both sides of the partition plate 114 along the third direction, so that the third electrode 300 is located outside the area of ​​the first electrode 210 and the second electrode 220.

[0150] In some implementations, the third electrode 300 is located inside the accommodating cavity 101, using the vent 102 to absorb moisture from the air duct and ionize the air. With this arrangement, the third electrode 300 can be protected by the housing component 100.

[0151] In other embodiments, the third electrode 300 is mounted on the housing member 100, and at least a portion of the third electrode 300 is located on the outside of the housing member 100. This arrangement allows the third electrode 300 to better absorb moisture from the air and ionize the air, enabling the active substances generated by ionization to enter the cold storage compartment 11 more quickly.

[0152] When the ion generator 30 is installed on the air duct plate 41, the portion of the third electrode 300 located outside the outer casing member 100 is exposed in the air duct. A gap exists between the outer casing member 100 and the rear wall of the liner 12, which communicates with the air duct. Thus, the third electrode 300 is exposed through this gap, thereby allowing the third electrode 300 to be exposed in the air duct.

[0153] Alternatively, the air duct plate 41 may have an opening that exposes the housing components 100 to the air duct, thereby exposing the third electrode 300 located on the outside of the housing components to the air duct.

[0154] In some possible implementations of this application, the outer casing 100 is fixed to the air duct plate 41, and the portion of the third electrode 300 located outside the outer casing 100 is away from the air duct plate 41.

[0155] This configuration allows the ion generator 30 to be installed on the air duct plate 41, enabling the ion generator 30 to be directly installed in the housing liner 12 along with the air duct plate 41, which simplifies the assembly of the ion generator 30. Furthermore, the third electrode 300 is positioned away from the air duct plate 41 on the portion of the outer casing component 100, allowing the third electrode 300 to be exposed in the air duct for better air discharge and adsorption of moisture from the air, thereby improving the efficiency of the third electrode 300 in generating active substances.

[0156] In some implementations, such as Figure 4 As shown, the outer shell component 100 is provided with a protruding rib 170, which can ensure that there is a gap between the side of the outer shell component 100 facing the rear liner wall and the rear liner wall, and can also improve the structural strength of the outer shell component 100.

[0157] The protruding ridge 170 protrudes from the outer surface of the housing member 100. For example, the protruding ridge 170 is provided on the surface of the first side plate 111.

[0158] In some embodiments, the protruding rib 170 may be provided at the corner of the housing member 100, and the protruding rib 170 may be L-shaped, which helps to further improve the structural strength of the housing member 100.

[0159] In addition, the protruding ridge 170 can also prevent the exposed third electrode 300 from colliding with the rear wall.

[0160] Reference Figure 7 and Figure 8 In some embodiments of this application, the outer casing member 100 is provided with a fixing hole 131, which penetrates the thickness direction of the outer casing member 100. Exemplarily, the fixing hole 131 is provided on one of the first side plates 111, and the fixing hole 131 penetrates the thickness direction of the first side plate 111. The third electrode 300 is mounted in the fixing hole 131.

[0161] For example, the third electrode 300 is interference-fitted with the fixing hole 131, and a portion of the third electrode 300 is located on the outside of the housing member 100.

[0162] For example, the third electrode 300 is bonded to the fixing hole 131, and the connection method is stable and reliable.

[0163] Typically, in order to reduce the external dimensions of the housing component 100, the thickness of each side plate of the housing component 100 is limited. Therefore, the axial dimension of the fixing hole 131 is limited, which is not conducive to the stable installation of the third electrode 300.

[0164] Therefore, in some embodiments, a fixing member 130 is provided in the accommodating cavity 101. The fixing member 130 is connected to the outer shell member 100 and is opposite to the fixing hole 131. The fixing hole 131 extends toward the accommodating cavity 101 and passes through the fixing member 130.

[0165] The fixing member 130 is fixedly connected to the side of the first side plate 111 facing the receiving cavity 101. The fixing member 130 can be columnar for easy forming. The fixing member 130 and the fixing hole 131 are opposite each other along the axial direction of the fixing hole 131. The fixing hole 131 extends to the fixing member 130 and passes through the fixing member 130 to extend the length of the fixing hole 131, increase the fixing length between the third electrode 300 and the fixing hole 131, and thus improve the stability of the installation of the third electrode 300.

[0166] Therefore, the outer shell component 100 of this application embodiment is provided with a fixing hole 131 for mounting the third electrode 300, resulting in a simple structure. Furthermore, by providing a fixing member 130 within the accommodating cavity 101, the fixing hole 131 extends along its length, thereby extending the connection length between the fixing hole 131 and the third electrode 300, thus improving the stability of the third electrode 300's installation.

[0167] Continue to refer to Figure 8 The outer surface of the outer shell component 100 away from the accommodating cavity 101 forms a recess 140, and the fixing hole 131 is provided in the recess 140.

[0168] A portion of the first side plate 111 is recessed into the receiving cavity 101 to form a recess 140. This helps to ensure the consistency of the thickness of the outer shell component 100, and thus helps to ensure the structural strength of the outer shell component 100.

[0169] In this embodiment, by providing a recess 140 to accommodate the portion of the third electrode 300 located outside the outer shell member 100, the recess 140 can expand the space outside the third electrode 300, so that the third electrode 300 has sufficient space to contact the airflow in the air duct and absorb moisture.

[0170] Continue to refer to Figure 8The third electrode 300 has an outer end located outside the housing member 100, and the outer end of the third electrode 300 does not protrude from the outer surface of the first side plate 111.

[0171] In this way, the third electrode 300 can be protected and prevented from protruding from the outer surface of the first side plate 111 and being easily bumped or damaged.

[0172] In some embodiments, along the axial direction of the fixing hole 131, from the fixing hole 131 toward the outer end of the recess 140, the sidewall of the recess 140 is inclined outward away from the center, so that the recess 140 is funnel-shaped or flared. In this way, the recess 140 has a diffused shape, providing a larger space for the third electrode 300 to contact the airflow in the air duct, which is beneficial for both the adsorption of moisture and the diffusion of the generated active material into the air duct.

[0173] like Figure 5 As shown, a reinforcing member 132 is also provided in the accommodating cavity 101. The reinforcing member 132 is connected to the fixing member 130 and the outer shell member 100 respectively. For example, the reinforcing member 132 connects the fixing member 130 and the first side plate 111. The reinforcing member 132 can also connect the partition plate 114, thereby improving the structural strength of the fixing member 130 and the partition plate 114.

[0174] Continue to refer to Figure 5 The ion generator 30 may also include a drive circuit board 400, which is located in the accommodating cavity 101 and fixedly connected to the housing component 100.

[0175] For example, the drive circuit board 400 is fixedly connected to the housing portion 110, and the connection method includes, but is not limited to, screw connection, snap-fit ​​connection, etc.

[0176] like Figure 5 As shown, two limiting plates 115 are also provided inside the accommodating cavity 101. The two limiting plates 115 are opposite to each other along the second direction and are spaced apart. The two limiting plates 115 are parallel to the second side plate 112. The two ends of the two limiting plates 115 along the third direction are respectively connected to the partition plate 114 and the third side plate 113. In this way, the third side plate 113, the two limiting plates 115, the partition plate 114, and the first side plate 111 enclose and form a fixing groove. The drive circuit board 400 is fixed in the fixing groove.

[0177] The drive circuit board 400 supplies power to the counter electrode group 200 and the third electrode 300 respectively, and controls the power-on state of the counter electrode group 200 and the third electrode 300.

[0178] For example, the first electrode 210 is the positive electrode and the second electrode 220 is the negative electrode. The drive circuit board 400 controls the power-on state to form a voltage difference between the first electrode 210 and the second electrode 220, so that corona discharge occurs between the first electrode 210 and the second electrode 220.

[0179] For example, the drive circuit board 400 applies a negative voltage to the third electrode 300, so that the third electrode 300 can discharge to the air.

[0180] Continue to refer to Figure 5 In some embodiments, the third electrode 300 and the counter electrode group 200 are located on different sides of the drive circuit board 400. This ensures that the third electrode 300 is located outside the area of ​​the counter electrode group 200, avoiding mutual interference between the discharge of the third electrode 300 and the counter electrode group 200, and also ensuring sufficient electrical connection space between each electrode and the drive circuit board 400.

[0181] For example, the counter electrode group 200 is located on the side of the drive circuit board 400 along the second direction, and the third electrode 300 is located on the side of the drive circuit board 400 along the first direction.

[0182] In some possible implementations, the drive circuit board 400 is arranged parallel to the first side plate 111, so that the drive circuit board 400 has a large area to arrange electrical components, which can make the ion generator 30 as a whole flat and improve the compactness of the structure.

[0183] When a high voltage is applied to the third electrode 300, the third electrode 300 discharges into the air. The moisture in the third electrode 300 during ionization comes from two sources: one is moisture adsorbed by the third electrode 300 due to its hygroscopic properties, and the other is moisture from the air. The moisture adsorbed by the third electrode 300 constitutes the majority of the moisture.

[0184] Due to its hygroscopic nature, the third electrode 300 continuously absorbs moisture from the air. When a high-voltage electric field is applied to the third electrode 300, it discharges. During this process, the water in the third electrode 300 undergoes Rayleigh cleavage under the high-voltage electric field, producing nanoscale water particles. These water particles are ionized by the high-voltage electric field into hydroxyl radicals, which combine with the water particles to form hydroxyl radicals encapsulated by water molecule clusters. Simultaneously, when a negative high-voltage electric field is applied to the third electrode 300, it releases a large number of electrons, which react with the surrounding air to generate negative ions. These negative ions combine with the water particles to form negative ion clusters encapsulated by water molecules.

[0185] During the discharge process of the ion generator 30, the third electrode 300 mainly releases negative ions wrapped in water molecule clusters and hydroxyl radicals; while the corona discharge of the first electrode 210 and the second electrode 220 mainly releases negative ions and ozone. Among these active substances, hydroxyl radicals and ozone have stronger oxidizing power.

[0186] Hydroxyl groups are the most potent oxidizing free radicals in nature (oxidation point 2.8 eV), capable of effectively stripping hydrogen from organic molecules and disrupting their chemically stable structure. Therefore, they can undergo redox reactions with most organic pollutants and bacteria, achieving deodorization and sterilization. Thus, the placement of the third electrode 300 increases the generation of hydroxyl free radicals, effectively enhancing sterilization and purification capabilities.

[0187] While ozone's oxidizing power is not as strong as that of hydroxyl groups (ozone's oxidation potential is 2.07 eV), its half-life is relatively long, approximately 3 hours under refrigerator conditions. Therefore, it can effectively sterilize and deodorize through the air circulation in the refrigerator compartment 11.

[0188] Negative ions, due to their charged properties, readily bind to the surfaces of bacteria, mold, spores, and viruses, destroying their proteins and nucleic acids, thereby inactivating various microorganisms and achieving sterilization.

[0189] Furthermore, the hydroxyl radicals and negative ions generated by the ion generator 30 in this embodiment exist in the form of water molecule clusters. While conventional hydroxyl radicals have the strongest oxidizing power, they quickly annihilate in the air. However, after being encapsulated by water molecule clusters, hydrogen bonds are formed between the water molecules and the hydroxyl radicals. These molecular hydrogen bonds enhance the stability and lifespan of the hydroxyl radicals, and prevent airborne hydroxyl radicals from reacting with inorganic nitrogen and oxygen in the air. Instead, they react with organic odor molecules and bacteria. This not only increases the lifespan but also enhances the targeting effect of the hydroxyl radicals, thus improving the sterilization and purification capabilities. Compared to individual negative ions, negative ions encapsulated by water molecule clusters can effectively adsorb airborne bacteria in the refrigerator compartment, adding a sedimentation effect on top of charge adsorption, thereby improving the sterilization effect.

[0190] Furthermore, the third electrode 300 and the counter electrode group 200 work together. When the ozone generated by the counter electrode group 200 during the discharge process diffuses to the vicinity of the third electrode 300, the ozone and water in the water-containing third electrode 300 will undergo a secondary reaction under the action of the high voltage electric field during the discharge process. The ozone will be converted into hydroxyl radicals, thereby increasing the number of hydroxyl radicals and improving the sterilization and purification effect.

[0191] Therefore, the third electrode 300 in this embodiment of the application has water absorption and conductivity properties, making it suitable for use in the refrigeration air duct of a refrigerator. The third electrode 300 can absorb moisture in the air duct, perform tip discharge, and thereby generate negative ions and active oxygen species encapsulated by water molecules. The encapsulation of water molecules can enhance the effective range and duration of the negative ions, thereby further improving the sterilization and purification capabilities.

[0192] Experiments show that when the ambient humidity of the test environment increases from 40%RH to 70%RH, under the same conditions, the sterilization rate of the ion generator 30 in this embodiment increases from 96.4% to 99.8%. This demonstrates the high-efficiency sterilization performance of the ion generator 30 in this embodiment; when working in the high-humidity environment of the refrigerator compartment 11, it can effectively kill bacteria on the surface of objects and extend the shelf life of food.

[0193] With the above-described configuration, the refrigerator in this embodiment of the application is equipped with an ion generator 30, which ionizes and generates active substances to sterilize and purify the refrigerator compartment 11. The ion generator 30 includes an outer shell component 100, a counter electrode group 200, and a third electrode 300. The first electrode 210 and the second electrode 220 of the counter electrode group 200 undergo corona discharge to generate negative ions and ozone, thus achieving a certain degree of sterilization and purification.

[0194] The third electrode 300 is hygroscopic, capable of adsorbing moisture in the refrigerator. Furthermore, the third electrode 300 is conductive; when a voltage is applied to it, the water within it undergoes Rayleigh cleavage under a high-voltage electric field, generating nanoscale water particles. These water particles are ionized by the high-voltage electric field into hydroxyl radicals, which combine with the water particles to form hydroxyl radicals encapsulated by water molecule clusters. The negative ions generated by the third electrode 300 and the negative ions generated by the counter electrode assembly 200 combine with the water particles to form negative ions encapsulated by water molecule clusters. These negative ions and hydroxyl radicals can prolong their presence time, thereby extending the range and duration of sterilization and purification, thus enhancing sterilization and purification capabilities.

[0195] The third electrode 300 is located on the outside of the outer shell component 100, which not only makes it easier to adsorb moisture in the air in the refrigerator, but also allows active substances such as negative ions and hydroxyl radicals to diffuse more quickly.

[0196] When humidity increases in the refrigerator, the third electrode 300 can better absorb moisture, which helps to improve the sterilization and purification effect. The water absorption performance of the third electrode 300 in this embodiment of the application eliminates the need for an additional water supply to the third electrode 300, which helps to simplify the structure of the ion generator 30.

[0197] In some possible implementations of this application, a portion of the housing member 100 protrudes outward to provide a receiving space 151 for the portion of the electrode of the opposing electrode assembly 200; the housing member 100 is compatiblely mounted to the housing 10, and the third electrode 300 faces the air duct.

[0198] The outer casing 100 is compatiblely mounted to the air duct plate 41 in the housing 10, such that the third electrode 300 faces the air duct. The air duct plate 41 has a recessed structure at a position corresponding to the protrusion 150 of the outer casing 100.

[0199] On the one hand, a portion of the outer casing 100 protrudes outward, providing a space 151 for the electrode portion of the opposing electrode assembly 200, thus allowing for more ample space for electrode arrangement. On the other hand, the outer casing 100 can be fitted into the housing 10, ensuring that the third electrode 300 faces inward into the air duct, thereby ensuring that the third electrode 300 is exposed within the air duct and can better adsorb moisture in the airflow and ionize the air. This prevents mistaken installation, improving the convenience and accuracy of assembling the ion generator 30 into the housing 10, and avoiding incorrect installation of the outer casing 100, which would affect the ionization effect of the third electrode 300.

[0200] Continue to refer to Figure 7 and Figure 9 A portion of the outer shell component 100 protrudes outward to form a protrusion 150, which encloses a receiving space 151, forming part of the receiving cavity 101; the protrusion 150 is provided with a vent 102.

[0201] A portion of the first electrode 210 is located within the accommodating space 151.

[0202] like Figure 7 As shown, the vents 102 have various arrangements. The protrusion 150 has multiple vents 102. The first side plate 111 has multiple vents 102, which are spaced apart along a third direction, and each opposing electrode group 200 has multiple vents 102 corresponding to it. Furthermore, multiple vents 102 are provided around the recess 140.

[0203] exist Figure 7 In this process, the vent 102 can be circular, waist-shaped, etc., but this is not a limitation on the shape and arrangement of the vent 102.

[0204] In this embodiment, a portion of the outer casing 100 protrudes outward to form a protrusion 150; a recessed receiving space 151 is formed on one side of the receiving cavity, increasing the volume of the receiving cavity 101 and providing space for the arrangement of the first electrode 210. While ensuring adaptation to the shape of the first electrode 210, the partial protrusion allows the outer casing 100 to maintain a compact size without significantly increasing its external volume, thus requiring less installation space. Furthermore, the protrusion 150 is provided with a vent 102, allowing the receiving space 151 to communicate with the external space of the outer casing 100, enabling ions generated by ionization to quickly diffuse into the air duct, facilitating ion diffusion.

[0205] exist Figure 9 In the middle, the protrusion 150 is hemispherical, but this is not a limitation on the shape of the protrusion 150. For example, the protrusion 150 can also be cuboid, semi-ellipsoid, etc.

[0206] In some possible implementations of this application, combined with Figure 10 The air duct plate 41 is constructed to form a mounting groove 44, and the outer shell component 100 can be matched and installed in the mounting groove 44 to avoid occupying additional space in the depth direction of the refrigerator due to the setting of the ion generator 30.

[0207] The air duct plate 41 is constructed to form a recessed portion 441; the protrusion 150 mates with the recessed portion 441. The recessed portion 441 forms part of the mounting groove 44.

[0208] By forming a groove 441 on the air duct plate 41, which cooperates with the protrusion 150 of the outer shell component 100, the installation of the ion generator 30 can be guided, thereby improving the ease of assembly of the ion generator 30.

[0209] Combination Figure 7 The outer shell component 100 includes a main shell portion 160 and a protrusion 150, the main shell portion 160 being generally rectangular in shape.

[0210] Combination Figure 10 The mounting groove 44 includes a recessed portion 441 and a main body groove 442, wherein the main body groove 442 accommodates the main body shell portion 160, and the recessed portion 441 accommodates the protrusion 150, thereby allowing the outer shell component 100 to be fitted into the mounting groove 44.

[0211] In some embodiments of this application, multiple counter electrode groups 200 are provided, and the multiple counter electrode groups 200 are arranged in a staggered manner within the accommodating cavity 101.

[0212] For example, multiple opposing electrode groups 200 are arranged at intervals along the length of multiple sides of the receiving cavity 101.

[0213] The housing component 100 is configured to form a plurality of protrusions 150 such that a portion of the first electrode 210 of each opposing electrode assembly 200 is located within one of the receiving spaces 151.

[0214] The multiple protrusions 150 are arranged asymmetrically with respect to the outer shell member 100. This can be understood as the multiple protrusions 150 being neither reflectively symmetric nor rotationally symmetric with respect to the outer shell member 100.

[0215] like Figure 5 As shown, two opposing electrode groups 200 are provided, located on opposite sides of the drive circuit board 400 along the second direction. Figure 7 As shown, two protrusions 150 are provided, one on each of the two second side plates 112. The two protrusions 150 are neither symmetrical about the first center line O1 of the outer shell member 100 nor about the second center line O2 of the outer shell member 100. The first center line O1 is a center line extending along the second direction, and the second center line O2 is a center line extending along the third direction.

[0216] In some possible embodiments, the housing component 100 is provided with a connection cable for the ion generator 30 at one end in a third direction. For example... Figure 10 As shown, the mounting groove 44 has an opening on one side, allowing the connecting cable to pass through. When the connecting cable passes through the opening on one side of the mounting groove 44, it is only required that the multiple protrusions 150 are not reflectively symmetrical about the housing member 100. In this case, even if the multiple protrusions 150 are rotationally symmetrical about the housing member 100, the non-reflectively symmetrical arrangement of the multiple protrusions 150 with respect to the housing member 100 due to the fit between the connecting cable and the opening on one side of the mounting groove 44 is sufficient to satisfy the mistaken-proof installation function of the housing member 100.

[0217] The opposing electrode group 200 of this application embodiment is provided with multiple electrodes, which can increase the generation of active substances such as negative ions and hydroxyl radicals, thereby increasing the sterilization and purification effect; moreover, the multiple protrusions 150 are arranged asymmetrically with respect to the outer shell component 100, which can make the installation of the outer shell component 100 foolproof, ensuring that the third electrode 300 faces the air duct, which is conducive to the absorption of moisture and the diffusion of active substances.

[0218] Combination Figure 11 In some possible implementations of this application, the second electrode 220 is plate-shaped and has a through hole 221. For example, the second electrode 220 is a rectangular plate, and the through hole 221 penetrates the thickness of the second electrode 220.

[0219] The second electrode 220 may be a metal plate, or the second electrode 220 may include a substrate and a metal layer disposed on the surface of the substrate.

[0220] The first electrode 210 includes an intermediate metal pillar 211 and at least one discharge section. The discharge section includes a plurality of discharge electrode pillars 212, which are respectively connected to the intermediate metal pillar 211 and are arranged circumferentially around the intermediate metal pillar 211.

[0221] For example, the discharge section includes four discharge electrode posts 212, which are evenly spaced around the central metal post 211.

[0222] The discharge electrode post 212 is a metal post, which is electrically connected to the intermediate metal post 211 not only mechanically but also electrically.

[0223] Combination Figure 9 The intermediate metal pillar 211 is electrically connected to the drive circuit board 400, and the intermediate metal pillar 211 extends from the accommodating cavity 101 through the through hole 221 into the accommodating space 151.

[0224] One of the discharge sections is located within the receiving space 151, and the tip of the discharge electrode post 212 faces the second electrode 220, and there is a gap between the tip of the discharge electrode post 212 and the second electrode 220 to form a discharge gap.

[0225] The second electrode 220 in this embodiment is plate-shaped and can discharge simultaneously with the multiple discharge posts 212 of the first electrode 210, increasing the ion generation efficiency and thus facilitating the generation of negative ions and reactive oxygen species, thereby increasing the sterilization and purification efficiency. Furthermore, the second electrode 220 is provided with a through hole 221, allowing the central metal post 211 of the first electrode 210 to pass through, so that a portion of the first electrode 210 is located within the receiving space 151.

[0226] Continue to refer to Figure 12 In some embodiments of this application, the discharge electrode post 212 includes an arc-shaped post segment 2121 and a straight post segment 2122. The arc-shaped post segment 2121 connects the straight post segment 2122 and the intermediate metal post 211. The arc-shaped post segment 2121 protrudes away from the second electrode 220. There is a gap between the straight post segment 2122 and the intermediate metal post 211. The end of the straight post segment 2122 away from the arc-shaped post segment 2121 forms a tip.

[0227] For example, the straight column segment 2122 is parallel to the intermediate metal column 211, making the structure of the discharge electrode column 212 compact.

[0228] The first electrode 210 of this embodiment is generally umbrella-shaped, providing multiple discharge locations while maintaining a compact structure.

[0229] In this embodiment of the application, the discharge electrode post 212 is provided with an arc column segment 2121, which not only realizes the electrical connection between the straight column segment 2122 and the central metal column, but also makes the straight column segment 2122 and the middle metal column 211 have a gap, and makes the tip of the straight column segment 2122 face the second electrode 220, thereby discharging with the second electrode 220.

[0230] The straight column segment 2122 is arranged parallel to the intermediate metal column 211, so that the multiple straight column segments 2122 are arranged parallel to each other, avoiding the possibility of discharge between the straight column segments 2122.

[0231] The discharge electrode post 212 of this application embodiment is provided with an arc column segment 2121, so that the discharge electrode post 212 as a whole has no other sharp parts except for the tip, which can make the tip of the straight column segment 2122 discharge better.

[0232] Continue to refer to Figure 9 In some embodiments of this application, two discharge sections are provided, which are located on both sides of the second electrode 220 and are arranged symmetrically with respect to the second electrode 220.

[0233] In this embodiment, the first electrode 210 has two discharge sections that share a second electrode 220, increasing the number of discharge positions, improving discharge efficiency and negative ion quantity, thereby enhancing the sterilization and purification effect. Furthermore, the structure is compact, does not increase the thickness of the ion generator 30, and does not require additional space occupancy in the depth direction of the refrigerator.

[0234] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0235] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that, include: The box (10) is constructed to form a cold storage compartment (11) with an access opening; The door (20) is hinged to the box (10) to open or close the loading / unloading port; An ion generator (30) is installed in the housing (10); the ion generator (30) includes: The outer shell component (100) is configured to form a receiving cavity (101) and a vent (102), the vent (102) connecting the receiving cavity (101) and the outer space of the outer shell component (100); A counter electrode assembly (200) is located within the accommodating cavity (101). The counter electrode assembly (200) includes a first electrode (210) and a second electrode (220). A discharge gap is formed between the first electrode (210) and the second electrode (220), and the first electrode (210) and the second electrode (220) are used together to ionize the air within the discharge gap when energized. The third electrode (300) is hygroscopic and conductive; the third electrode (300) is used to ionize air and adsorb and ionize water in the air; the third electrode (300) is mounted on the housing member (100), and at least a portion of the third electrode (300) is located on the outside of the housing member (100).

2. The refrigerator according to claim 1, characterized in that, The cabinet (10) includes: a cabinet liner (12) and an air duct plate (41). The air duct plate (41) is installed inside the cabinet liner (12) and forms an air duct with the cabinet liner (12) to allow cold air from the evaporation chamber to flow into the cold storage compartment (11). The front side of the air duct plate (41) forms the cold storage compartment (11). The outer casing component (100) is fixed to the air duct plate (41), and the portion of the third electrode (300) located outside the outer casing component (100) is away from the air duct plate (41).

3. The refrigerator according to claim 2, characterized in that, A portion of the outer shell component (100) protrudes outward to form a protrusion (150), the protrusion (150) encloses a receiving space (151), the receiving space (151) forms a portion of the receiving cavity (101); the protrusion (150) is provided with the vent (102). A portion of the first electrode (210) is located within the accommodating space (151).

4. The refrigerator according to claim 3, characterized in that, The air duct plate (41) is configured to form a mounting groove (44), and the outer shell component (100) can be matched and installed in the mounting groove (44); The air duct plate (41) is constructed to form a groove (441), which forms part of the mounting groove (44); the protrusion (150) cooperates with the groove (441).

5. The refrigerator according to claim 3, characterized in that, The second electrode (220) is plate-shaped and has a through hole (221); The first electrode (210) includes an intermediate metal pillar (211) and at least one discharge section. The discharge section includes a plurality of discharge electrode pillars (212), which are respectively connected to the intermediate metal pillar (211) and are arranged circumferentially around the intermediate metal pillar (211). The intermediate metal pillar (211) extends from the accommodating cavity (101) through the through hole (221) to the accommodating space (151). One of the discharge sections is located within the receiving space (151), and the tip of the discharge electrode post (212) faces the second electrode (220) and forms the discharge interval.

6. The refrigerator according to claim 5, characterized in that, The discharge electrode post (212) includes an arc-shaped column segment (2121) and a straight column segment (2122). The arc-shaped column segment (2121) connects the straight column segment (2122) and the intermediate metal post (211). The arc-shaped column segment (2121) protrudes away from the second electrode (220). There is a gap between the straight column segment (2122) and the intermediate metal post (211). The end of the straight column segment (2122) away from the arc-shaped column segment (2121) forms a tip.

7. The refrigerator according to claim 5, characterized in that, Two discharge sections are provided, and the two discharge sections are respectively located on both sides of the second electrode (220), and the two discharge sections are arranged symmetrically with respect to the second electrode (220).

8. The refrigerator according to claim 3, characterized in that, Multiple opposing electrode groups (200) are provided, and the multiple opposing electrode groups (200) are arranged in a staggered manner within the accommodating cavity (101); The housing component (100) is configured to form a plurality of the protrusions (150) such that a portion of the first electrode (210) of each of the opposing electrode groups (200) is located within one of the receiving spaces (151); The plurality of the protrusions (150) are arranged asymmetrically with respect to the outer shell member (100).

9. The refrigerator according to any one of claims 1-8, characterized in that, The outer shell component (100) is provided with fixing holes (131); A fixing member (130) is provided inside the accommodating cavity (101). The fixing member (130) is connected to the outer shell component (100) and is opposite to the fixing hole (131). The fixing hole (131) extends toward the receiving cavity (101) and penetrates the fixing member (130); The third electrode (300) is mounted in the fixing hole (131).

10. A refrigerator, characterized in that, include: The cabinet (10) is constructed to form a cold storage compartment (11) for storage and an evaporation chamber in which an evaporator is arranged, and is also constructed to form an air duct for cold air in the evaporation chamber to flow into the cold storage compartment (11); An ion generator (30) is installed inside the air duct; the ion generator (30) includes: The outer shell component (100) is configured to form a receiving cavity (101) and a vent (102), the vent (102) connecting the receiving cavity (101) and the air duct; A counter electrode assembly (200) is installed in the accommodating cavity (101); the two electrodes of the counter electrode assembly (200) are arranged opposite to each other and ionize the air; The third electrode (300) is absorbent and conductive; the third electrode (300) is used to ionize air and water, the third electrode (300) is fixed to the outer shell member (100), and a portion of the third electrode (300) is located on the outside of the outer shell member (100) and exposed in the air duct; A portion of the outer casing member (100) protrudes outward to provide a receiving space (151) for the portion of the electrodes of the opposing electrode assembly (200); the outer casing member (100) is compatiblely mounted to the housing (10).

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