Catalyst assembly, sterilization and odor eliminator, and refrigerator

Abstract

The application relates to the technical field of household appliances, and provides a catalyst assembly, a sterilization and deodorization device and a refrigerator. The catalyst assembly comprises an electrode, a first electrode sheet and a second electrode sheet which are arranged at intervals, the first electrode sheet comprises an electrode tip which is arranged towards the second electrode sheet, a catalyst block which is arranged between the first electrode sheet and the second electrode sheet, the catalyst block is provided with a first ventilation hole, the first ventilation hole is suitable for guiding the airflow flowing through the first electrode sheet to the second electrode sheet through the catalyst block, and at least two electrode tips are separated by the first ventilation hole. According to the catalyst assembly, the at least two electrode tips are separated by the first ventilation hole, the contact area between the active substances generated by the electrode tips and the catalyst block can be increased, more chemical reactions can be promoted to occur, and the catalytic oxidation or reduction process of odor molecules can be accelerated.

Description

[0001] This application is a divisional application of Chinese invention patent application filed on July 31, 2023, with application number 2023109645307, entitled "Catalyst Component, Deodorizer and Refrigerator". Technical Field

[0002] This invention relates to the field of household appliance technology, and provides a catalyst assembly, a sterilizer and deodorizer, and a refrigerator. Background Technology

[0003] Currently, users are increasingly concerned about the hygiene of household appliances. Taking refrigerators as an example, the freezer and ice maker compartments typically share a large freezer space and air duct. The freezer compartment usually contains foods with strong odors, such as seafood and meat, while the ice maker is used to store ice. Because the freezer and ice maker share an air duct, it's easy for odors to cross between the ice. Simultaneously, if the refrigerator, freezer, and ice maker compartments also share an air duct, odor molecules from foods with strong odors, such as durian, onions, kimchi, and leftovers, placed in the refrigerator compartment can enter the freezer and then the ice maker, causing the ice to smell bad and easily leading to bacterial growth. Therefore, it's necessary to treat odor molecules in household appliances. However, existing catalyst components have relatively low efficiency in treating odor molecules. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in related technologies. To this end, this invention proposes a catalyst assembly to address the problem of low efficiency in treating odor molecules in existing catalyst assemblies.

[0005] The present invention also proposes a disinfection and deodorization device.

[0006] The present invention also proposes a refrigerator.

[0007] A catalyst assembly according to a first aspect of the present invention includes: An electrode includes a first electrode sheet and a second electrode sheet spaced apart, wherein the first electrode sheet includes an electrode tip disposed toward the second electrode sheet; A catalyst block is disposed between the first electrode plate and the second electrode plate. The catalyst block is provided with a first ventilation hole, which is adapted to guide the airflow flowing through the first electrode plate to the second electrode plate through the catalyst block. At least two of the electrode tips are separated by the first vent.

[0008] According to the catalyst assembly of the present invention, at least two of the electrode tips are separated by the first vent hole, which can increase the contact area between the active material generated at the electrode tip and the catalyst block, promote more chemical reactions, and accelerate the catalytic oxidation or reduction process of odor molecules.

[0009] According to an embodiment of the present invention, all the electrode tips are respectively inserted into different first ventilation holes. or, All of the electrode tips are located on different sides of the exterior of the catalyst block, and the electrode tips extend along the channel direction of the first vent hole.

[0010] According to an embodiment of the present invention, all the electrode tips are distributed along a straight line.

[0011] According to an embodiment of the present invention, the distance between the electrode tip and the conductive portion of the second electrode sheet is a first spacing, and the distance between the catalyst block and the conductive portion of the second electrode sheet is a second spacing; The first spacing is smaller than the second spacing. Wherein, if the conductive part is provided with a conductive hole, the first spacing is the closest distance between the electrode tip and the conductive hole; When the conductive part is a solid structure, the first spacing is the vertical distance between the electrode tip and the plane where the solid structure is located.

[0012] According to an embodiment of the present invention, the first electrode sheet includes a first electrode plate, the second electrode sheet includes a second electrode plate, and the first electrode plate and the second electrode plate are disposed opposite to each other.

[0013] According to an embodiment of the present invention, the first electrode plate is an insulating electrode plate, and a conductive region is provided in the middle of one end face of the first electrode plate, with the end face having the conductive region facing the second electrode sheet.

[0014] According to an embodiment of the present invention, there is a predetermined distance between the edge of the conductive region and the edge of the first electrode plate. And / or, The conductive area is provided with a mounting hole, and the electrode tip is fixed to the mounting hole and faces the second electrode plate.

[0015] According to an embodiment of the present invention, the first electrode plate and the electrode tip are integrally formed. And / or, the number of electrode tips is two, and they are located at opposite ends of the first electrode plate. And / or, the electrode tip is triangular.

[0016] According to an embodiment of the present invention, there are multiple first ventilation holes, and the conductive portion of the second electrode plate is provided with multiple conductive holes, the conductive holes being provided corresponding to the first ventilation holes.

[0017] According to an embodiment of the present invention, the shape of the first ventilation hole is circular, triangular, quadrilateral, pentagonal, hexagonal, or irregular.

[0018] According to an embodiment of the present invention, the first ventilation holes are uniformly distributed in the catalyst block. or, The diameter of the first ventilation hole near the electrode tip is smaller than the diameter of the first ventilation hole away from the electrode tip.

[0019] According to an embodiment of the present invention, the electric field between the electrode tip and the conductive portion of the second electrode sheet is less than 1 kV / mm.

[0020] According to an embodiment of the present invention, the voltage difference between the electrodes is 2 kV to 10 kV, and the first distance between the electrode tip and the conductive part of the second electrode plate is 2 mm to 15 mm.

[0021] The present invention also provides a disinfection and deodorization device, comprising: The aforementioned catalyst assembly; The housing has a first receiving cavity and a second receiving cavity inside. The catalyst assembly is disposed in the first receiving cavity, and the opposite sides of the first receiving cavity are open to form airflow channels through the catalyst assembly. A power source is electrically connected to the first electrode plate and the second electrode plate. The power source is disposed in the second receiving cavity and is located outside the airflow channel.

[0022] According to an embodiment of the present invention, the opening of the housing is respectively provided with a first mounting groove and a second mounting groove, the first mounting groove being adapted to connect the first electrode plate, and the second mounting groove being adapted to connect the second electrode plate. And / or, A limiting protrusion is provided on the wall of the second receiving cavity, the power supply is connected to the limiting protrusion, and the limiting protrusion is adapted to maintain a gap between the power supply and the wall of the second receiving cavity.

[0023] According to an embodiment of the present invention, the housing includes: A first outer shell and a second outer shell are interlocked, forming the first receiving cavity. The first electrode plate is connected to the first outer shell, and the second electrode plate is connected to the second outer shell. A third outer shell is connected to the snap-fitted first and second outer shells and forms the second receiving cavity.

[0024] According to an embodiment of the present invention, an insulating member is provided at the connection between the first outer shell and the first electrode sheet, and an insulating member is provided at the connection between the second outer shell and the second electrode sheet; or, The contact surface between the first outer shell and the first electrode plate is coated with insulating adhesive, and the contact surface between the second outer shell and the second electrode plate is coated with insulating adhesive. or, The second housing includes an insulating end plate. When the second electrode sheet is provided with a conductive hole, the insulating end plate is provided with a second ventilation hole corresponding to the conductive hole.

[0025] According to an embodiment of the present invention, both the first outer shell and the second outer shell are provided with bosses, which are adapted to limit the position of the catalyst block.

[0026] The present invention also provides a refrigerator, comprising: The main body has internal chambers for housing. The aforementioned catalyst assembly, or the aforementioned disinfection and deodorization device; The catalyst assembly is connected to the main body and is used to sterilize and purify the containment chamber; The main body is provided with an air duct, and the air duct is connected to the accommodating chamber; The catalyst assembly is disposed in the air duct, and the airflow in the air duct passes sequentially through the second electrode plate, the catalyst block and the first electrode plate.

[0027] According to an embodiment of the present invention, when the disinfection and deodorization device is equipped with a power source, the side of the disinfection and deodorization device closest to the power source is connected to the side wall of the air duct, and the side of the disinfection and deodorization device furthest from the power source is tilted towards the ground at a set angle.

[0028] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1This is a schematic diagram of the catalyst assembly provided in an embodiment of the present invention.

[0031] Figure 2 yes Figure 1 A schematic diagram of the exploded structure of the catalyst assembly provided in the embodiment.

[0032] Figure 3 This is a schematic diagram of the structure of a catalyst assembly provided in another embodiment of the present invention.

[0033] Figure 4 This is an exploded structural diagram of the disinfection and deodorization device provided in an embodiment of the present invention.

[0034] Figure 5 This is an exploded structural diagram of a disinfection and deodorization device provided in another embodiment of the present invention.

[0035] Figure 6 This is a schematic diagram of the structure of the first electrode plate provided in another embodiment of the present invention.

[0036] Figure 7 This is a schematic diagram of the structure of the disinfection and deodorization device provided in the embodiment of the present invention installed in the air duct of a refrigerator.

[0037] Figure 8 This is a partial structural schematic diagram of the refrigerator provided in an embodiment of the present invention.

[0038] Figure label: 100. Catalyst assembly; 1100, Electrode; 1110, First electrode sheet; 1111, Electrode tip; 1112, First electrode plate; 1113, Conductive area; 1114, Mounting hole; 1115, Preset distance; 1120, Second electrode sheet; 1121, Second electrode plate; 1122, Conductive part; 1123, Conductive hole; 1130, First spacing; 1140, Second spacing; 1200, Catalyst block; 1210, First vent hole; 200. Disinfection and deodorization device; 210. Housing; 2110. First outer shell; 2111. First mounting groove; 2120. Second outer shell; 2121. Second mounting groove; 2122. Insulating end plate; 2123. Second ventilation hole; 2124. Boss; 2130. Third outer shell; 2140. First receiving cavity; 2150. Second receiving cavity; 2151. Limiting protrusion; 220. Power supply; 300. Main body; 310. Air duct. Detailed Implementation

[0039] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0040] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0042] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] According to the first aspect of the present invention, the catalyst assembly 100 is described in reference to... Figures 1 to 3 The catalyst assembly 100 includes an electrode 1100 and a catalyst block 1200. The electrode 1100 includes a first electrode plate 1110 and a second electrode plate 1120 spaced apart. The first electrode plate 1110 includes an electrode tip 1111 facing the second electrode plate 1120. The catalyst block 1200 is disposed between the first electrode plate 1110 and the second electrode plate 1120. The catalyst block 1200 is provided with a first ventilation hole 1210, which is adapted to guide airflow passing through the first electrode plate 1110 through the catalyst block 1200 to the second electrode plate 1120. At least two of the electrode tips 1111 are separated by the first ventilation hole 1210.

[0045] According to the catalyst assembly of the present invention, at least two electrode tips 1111 are separated by a first vent 1210, which increases the contact area between the active material generated at the electrode tip 1111 and the catalyst block, thereby promoting more chemical reactions and accelerating the catalytic oxidation or reduction process of odor molecules. Specifically, since at least two electrode tips 1111 are separated by the first vent 1210, each electrode tip 1111 corresponds to a different region of the catalyst block 1200, making it easier for active materials and odor molecules to be adsorbed onto different regions of the catalyst block 1200, thereby enhancing the catalytic oxidation or reduction effect of odor molecules.

[0046] According to the catalyst assembly 100 of the present invention, the electric field between the electrode tip 1111 and the conductive portion 1122 of the second electrode sheet 1120 is less than 1 kV / mm.

[0047] According to the catalyst assembly 100 of the present invention, the distance between the electrode tip 1111 and the conductive portion 1122 of the second electrode plate 1120, and the voltage difference between the first electrode plate 1110 and the second electrode plate 1120, satisfy the condition that the ratio of the voltage difference value to the distance between the electrode tip 1111 and the conductive portion 1122 of the second electrode plate 1120 is less than 1 kV / mm, thereby effectively avoiding the defect of abnormal discharge of the catalyst assembly 100 in a humid environment, and the catalyst assembly 100 can meet the requirements of odor elimination in humid environments.

[0048] It should be noted that the electric field between the electrode tip 1111 and the conductive portion 1122 of the second electrode plate 1120 is less than 1 kilovolt / millimeter. In other words, the ratio of the voltage difference between the first electrode plate 1110 and the second electrode plate 1120 to the distance between the electrode tip 1111 and the conductive portion 1122 of the second electrode plate 1120 is less than 1. The unit of voltage difference is kilovolt and the unit of distance is millimeter.

[0049] It should be noted that in a humid environment, the conductivity of the first electrode plate 1110 and the second electrode plate 1120 will increase, leading to abnormal current flow, which may cause problems such as abnormal discharge and arcing. The discharge effect of the catalyst assembly 100 can be controlled by controlling the distance between the electrode tip 1111 and the second electrode plate 1120 and the voltage difference between the first electrode plate 1110 and the second electrode plate 1120.

[0050] It should be noted that, based on the principle of high-pressure plasma synergistic catalysis, the active substances generated by the ionization of the electrode tip 1111 can purify odors in the air and also sterilize and disinfect. The catalyst in the catalyst block 1200 can be a manganese-based catalyst, such as an iron-manganese alloy catalyst or a copper-manganese alloy catalyst, or it can be a rare earth catalyst or a precious metal catalyst, or it can be an adsorbent material. Of course, the catalyst in the catalyst block 1200 can be one or a combination of the above, as long as it can adsorb impurities and odor molecules in the air.

[0051] A tip discharge effect is formed between the electrode tip 1111 and the second electrode plate 1120, ionizing the air to generate active substances such as plasma, ozone, and negative ions. These active substances can kill bacteria, and the catalyst block 1200 can adsorb and decompose odor molecules. Ozone then oxidizes the odor molecules adsorbed on the catalyst block 1200, releasing the active sites of the catalyst block 1200. In other words, the electric field of the electrode tip 1111 provides active substances to the catalyst block 1200, promoting the reaction of odor molecules into odorless and harmless gases. Therefore, the catalyst block 1200 can be recycled, eliminating the need for frequent catalyst replacement. Furthermore, the catalyst block 1200 can degrade excess ozone, preventing ozone diffusion and ensuring normal use. The catalyst assembly 100 only requires the electrode 1100 and the catalyst block 1200, eliminating the need for an additional ozone generator or ultraviolet lamp, resulting in a small footprint while providing excellent sterilization.

[0052] The plasma generated by ionizing air is a high-temperature, high-energy ionized gas with strong oxidizing and bactericidal properties. It releases a large number of free radicals and electrons, which damage bacterial cell walls and cell membranes, thereby killing bacteria. Ozone generated by ionizing air is a highly oxidizing gas that can further damage bacterial cell walls and cell membranes, inhibiting bacterial growth and reproduction. Negative ions generated by ionizing air are negatively charged air particles that can adsorb and neutralize harmful particles such as bacteria and viruses in the air, rendering them inactive.

[0053] Active substances such as plasma, ozone, and negative ions can be adsorbed by catalyst block 1200. Specifically, ozone reacts with the odor molecules adsorbed by catalyst block 1200 to produce oxidation molecules, which can oxidize the odor molecules into odorless and harmless compounds. For example, ozone can oxidize sulfides to produce colorless gases such as sulfur dioxide (SO2) and carbon dioxide (CO2). Ozone can also oxidize ammonia (NH3) to produce nitrogen (N2) and water (H2O). Of course, odor molecules are not limited to sulfides and ammonia mentioned above; ozone can also oxidize other odor molecules. Therefore, the active substances generated by ionizing air can effectively reduce the concentration and intensity of odor substances, thereby improving air quality.

[0054] The first electrode 1110 can be either a positive or negative electrode. In specific applications, the polarities of the first electrode 1110 and the second electrode 1120 may be reversed. For example, the surface of electrode 1100 may be affected by contamination, corrosion, or deposits, impacting its performance and effectiveness. By reversing the polarity, the electrochemical reactions on the surface of electrode 1100 can be altered, thereby removing contaminants, corrosion products, or repairing the surface of electrode 1100.

[0055] According to one embodiment of the present invention, the distance between the electrode tip 1111 and the conductive portion 1122 of the second electrode plate 1120 is a first spacing 1130, and the distance between the catalyst block 1200 and the conductive portion 1122 of the second electrode plate 1120 is a second spacing 1140; the first spacing 1130 is smaller than the second spacing 1140. It is understood that the catalyst block 1200 and the second electrode plate 1120 are close together to increase the contact opportunity between the active species generated during ionization and the catalyst block 1200, thereby promoting catalytic oxidation or reduction reactions of pollutants in the air, thus purifying the air. However, during air ionization, the electrode tip 1111 and the second electrode plate 1120 undergo a high-voltage discharge process, forming a plasma channel between them, accompanied by high temperature and intense energy release. If the first spacing 1130 is larger than the second spacing 1140, the catalyst block 1200 will be too close to the second electrode plate 1120, easily generating an electric arc. Especially when the catalyst assembly 100 is in a humid environment, arc discharge can easily cause the catalyst assembly 100 and the environment in which it is located to be in a dangerous state. By setting the first gap 1130 to be smaller than the second gap 1140, it can be ensured that the second electrode plate 1120 and the nearest electrode tip 1111 are ionized, effectively preventing the second electrode plate 1120 from discharging to the catalyst block 1200.

[0056] In one embodiment, the catalyst block 1200 is provided with a heating element for heating the catalyst block 1200 when it is frozen or frosted. It is understood that ice or frost on the catalyst block 1200 will block the adsorption sites, significantly reducing its catalytic effect. Heating the catalyst block 1200 with the heating element can re-release the adsorption sites, allowing the catalyst block 1200 to maintain a high catalytic efficiency.

[0057] In one embodiment, the end face of the catalyst block 1200 facing the second electrode sheet 1120 can be flat or uneven. In this case, the second distance 1140 can be understood as the shortest distance between the planes where the conductive portion 1122 of the catalyst block 1200 and the second electrode sheet 1120 are located.

[0058] According to one embodiment of the present invention, the voltage difference between the first electrode plate 1110 and the second electrode plate 1120 is 2 kV to 10 kV, and the first spacing 1130 is 2 mm to 15 mm. For example, when the voltage difference is 2 kV, the first spacing 1130 being greater than 2 mm will not generate an electric arc in a humid environment. When the voltage is 10 kV, the first spacing 1130 being greater than 10 mm will not generate an electric arc in a humid environment.

[0059] It should be noted that the first spacing 1130 affects the overall ionization effect of the catalyst assembly 100. When the first spacing 1130 is much larger than the voltage difference, it will lead to a poor ionization effect. Therefore, when determining the voltage difference, adjusting the first spacing 1130 within a suitable range can achieve the best power effect and ensure safety. For example, when the voltage difference is 2 kV, a first spacing 1130 greater than 2 mm and less than 4 mm can obtain a good ionization effect. Of course, the embodiments here are only examples, and the present invention is not limited to the examples here.

[0060] According to one embodiment of the present invention, the first electrode sheet 1110 includes a first electrode plate 1112, and the second electrode sheet 1120 includes a second electrode plate 1121, with the first electrode plate 1112 and the second electrode plate 1121 disposed opposite to each other.

[0061] It is understandable that the first electrode plate 1112 and the second electrode plate 1121, when positioned opposite each other, can form a high-voltage electric field. This high-voltage electric field is applied to the catalyst block 1200, and air entering the high-voltage electric field will be ionized, producing active substances. Furthermore, the high-voltage electric field and the electric field at the electrode tip 1111 can form a synergistic catalysis, resulting in a better ionization effect for the air flowing through the catalyst.

[0062] It is understood that the shape of the first ventilation hole 1210 can be any shape. For example, the shape of the first ventilation hole 1210 can be a circle, triangle, quadrilateral, pentagon, hexagon or other irregular structure.

[0063] In one embodiment, the catalyst block 1200 is provided with a plurality of first ventilation holes 1210, which can be uniformly distributed on the catalyst block 1200. For example, a honeycomb structure can be formed, which has good stability and thus high strength of the catalyst block 1200. Of course, the catalyst block 1200 is not limited to a honeycomb structure and can also be other structures.

[0064] In one embodiment, the aperture of the first ventilation hole 1210 near the electrode tip 1111 is smaller than that of the first ventilation hole 1210 farther from the electrode tip 1111. It is understood that the active material formed by the ionization of air at the electrode tip 1111 will accumulate in large quantities near the electrode tip 1111. The smaller the aperture, the more first ventilation holes 1210 with the same opening area, i.e., the higher the density of the first ventilation holes 1210. As a result, the pore wall area of ​​the first ventilation holes 1210 is large, making it easier for active materials and odor molecules to be adsorbed onto the pore walls, thus improving the ozone adsorption effect. Therefore, a reasonable distribution of the density of the first ventilation holes 1210 allows the catalyst block 1200 to effectively adsorb excess ozone, preventing ozone exceedances (spatial ozone concentration <50 ppb).

[0065] In one embodiment, the first electrode plate 1112 and the second electrode plate 1121 are parallel, and the high-voltage electric field formed by the first electrode plate 1112 and the second electrode plate 1121 has a uniform field strength. The channel direction of the first ventilation hole 1210 is perpendicular to the second electrode plate 1121.

[0066] According to one embodiment of the present invention, there are multiple first ventilation holes 1210, and the conductive portion 1122 of the second electrode plate 1121 is provided with multiple conductive holes 1123. The closest distance between the electrode tip 1111 and the conductive hole 1123 is a first spacing 1130. The electrode tip 1111 points towards the conductive hole 1123, and ionization is generated between the electrode tip 1111 and the hole wall of the conductive hole 1123. The multiple conductive holes 1123 provided in the conductive portion 1122 can make air pass through the electrode plate more evenly, reducing dead zones and local airflow obstruction problems. When air flows through the conductive holes 1123, the electric field and ionization region around the conductive holes 1123 generate more active substances. These active substances can react with odor molecules, enhancing the purification effect. In addition, the electrode plate with conductive holes 1123 is generally lighter because the conductive holes 1123 reduce the actual mass of the electrode plate, which helps to simplify the design and assembly of the device and reduce the overall weight of the device. Furthermore, the conductive holes 1123 facilitate the passage of cleaning agents or gases through the electrode plates for cleaning and rinsing. Additionally, the conductive holes 1123 reduce the accumulation of contaminants on the surface of the electrode 1100, lowering the difficulty and frequency of cleaning.

[0067] In one embodiment, the conductive hole 1123 is provided corresponding to the first ventilation hole 1210. The shape of the conductive hole 1123 matches the shape of the first ventilation hole 1210. The matching shape can reduce air resistance and turbulence, ensuring smoother and more uniform airflow inside the catalyst assembly 100, thereby improving the purification effect. In addition, smoother airflow reduces the impact force on the second electrode plate 1120, improving the reliability of the second electrode plate 1120.

[0068] According to one embodiment of the present invention, the conductive portion 1122 of the second electrode plate 1121 is a solid structure, and the vertical distance between the electrode tip 1111 and the plane containing the solid structure is a first spacing 1130. The solid structure of the conductive portion 1122 is more robust and stable, reducing the risk of deformation or damage, and helping to ensure the stability and reliability of the catalyst assembly 100 during long-term operation. Furthermore, the solid structure of the conductive portion 1122 can better conduct heat. During discharge, the electrode sheet may generate heat; the solid structure can conduct heat more effectively, reducing the formation of hot spots and improving heat dispersion, helping to prevent localized overheating and thermal damage, and enhancing the durability of the device. Compared to the complex conductive hole 1123 structure, the solid structure of the conductive portion 1122 may be easier to manufacture and assemble. The manufacturing process of the conductive portion 1122 is relatively simple, reducing the difficulty of component handling and installation during assembly, which can reduce manufacturing costs and improve production efficiency.

[0069] According to one embodiment of the present invention, the electrode tip 1111 is inserted through the first ventilation hole 1210. It is understood that by inserting the electrode tip 1111 through the ventilation hole of the catalyst block 1200, the contact area between the active material generated by the electrode tip 1111 and the catalyst can be increased, which can promote more chemical reactions and accelerate the catalytic oxidation or reduction process of odor molecules.

[0070] According to one embodiment of the present invention, the electrode tip 1111 is disposed outside the catalyst block 1200, and the electrode tip 1111 extends along the channel direction of the first ventilation hole 1210. It is understood that the catalyst assembly 100 is prone to a humid environment, and disposing of the electrode tip 1111 outside the catalyst block prevents condensation from flowing along the electrode tip 1111 into the catalyst block 1200. Taking a refrigerator as an example, the catalyst block 1200 is disposed in the air duct 310. Each operation of the refrigerator generates water vapor, which continuously adheres to the catalyst assembly 100. As the refrigerator cools, the water vapor condenses into frost. If the electrode tip 1111 penetrates the catalyst block 1200, frost will continuously accumulate on the catalyst block 1200, affecting the adsorption of odor molecules by the catalyst block 1200.

[0071] According to one embodiment of the present invention, the first electrode plate 1112 and the electrode tip 1111 are integrally formed. The integrally formed design provides higher structural stability and simplifies the manufacturing and assembly process. Compared to manufacturing and assembling the first electrode plate 1112 and the electrode tip 1111 separately, the integrally formed design reduces the joining processes and steps between components, improving manufacturing efficiency and consistency. It is understood that the first electrode plate 1112 and the electrode tip 1111 can be integrally formed by stamping and bending, thus making the structure of the first electrode sheet 1110 more robust.

[0072] Of course, the first electrode plate 1112 and the electrode tip 1111 are not limited to being integrally formed; the first electrode plate 1112 can also be manufactured separately and assembled together (see details). Figure 6 and Figure 7 When the first electrode plates 1112 are manufactured and assembled separately, the number of electrode tips 1111 can be set as needed for the odor eliminator, without considering the strength of the electrode tips 1111. The electrode tips 1111 can have different shapes to meet different practical needs. For example, mounting holes 1114 can be provided in the conductive area 1113, and the electrode tips 1111 can be fixed to the mounting holes 1114 and face the second electrode plate 1120. The number of mounting holes 1114 on the first electrode plate 1112 can be set according to the actual needs of the mounting holes 1114.

[0073] According to one embodiment of the present invention, there are two electrode tips 1111, located at opposite ends of the first electrode plate 1112. The two electrode tips 1111 located at opposite ends of the first electrode plate 1112 do not obstruct airflow through the center of the catalyst block 1200, reducing the impact on the existing air duct 310 and ensuring smooth airflow. Furthermore, the electrode tips 1111 located at opposite ends of the first electrode plate 1112 ensure the strength of the first electrode sheet 1110. Moreover, placing the electrode tips 1111 at both ends shortens the path for high voltage to enter the electrode tips 1111 from the ends of the first electrode plate 1112, reducing the risk of damage to the first electrode sheet 1110.

[0074] Of course, there can be multiple electrode tips 1111, and the present invention does not limit the number of electrode tips 1111.

[0075] According to one embodiment of the present invention, the electrode tip 1111 is triangular. It is understood that the triangle provides the shape of the tip and a stable base, ensuring the strength of the electrode tip 1111 and facilitating the integral forming process of the electrode tip 1111 by stamping and bending.

[0076] According to a second aspect of the present invention, a disinfection and deodorization device 200 is described below. Figure 4 and Figure 5 The disinfection and deodorization device 200 includes: the catalyst assembly 100 and the housing 210 mentioned above; a first receiving cavity 2140 is formed inside the housing 210, and the catalyst assembly 100 is disposed in the first receiving cavity 2140; the housing 210 includes a first outer shell 2110 and a second outer shell 2120 that are fastened to each other, and the first outer shell 2110 and the second outer shell 2120 form the first receiving cavity 2140, a first electrode plate 1110 is connected to the first outer shell 2110, and a second electrode plate 1120 is connected to the second outer shell 2120.

[0077] It is understood that the first outer shell 2110 and the second outer shell 2120 can be arranged along the distribution direction of the catalyst assembly 100, and the first outer shell 2110 and the second outer shell 2120 can be interlocked from left to right. Alternatively, they can be arranged perpendicular to the distribution direction of the catalyst assembly 100, and the first outer shell 2110 and the second outer shell 2120 can be interlocked from front to back.

[0078] It should be noted that since the disinfection and deodorization device 200 includes the catalyst assembly 100 described above, the content of the first aspect embodiment of the present invention can be used to explain the disinfection and deodorization device 200 of the second aspect embodiment. Therefore, the same content will not be repeated.

[0079] In one embodiment, the first electrode plate 1110 is insulated from the first housing 2110 at its connection point; the second electrode plate 1120 is connected to the housing 210, and the second electrode plate 1120 is insulated from the second housing 2120 at its connection point. It is understood that in a humid environment, the insulation performance between the first housing 2110 and the connected first electrode plate 1110 decreases, or the insulation performance between the second housing 2120 and the second electrode plate 1120 decreases. If the conductive portion of the first electrode plate 1110 comes into contact with the first housing 2110, continued operation of the odor purifier 200 may easily lead to abnormal discharge problems such as electric arcing. By insulating the first electrode plate 1110 at the position where it connects to the first housing 2110 and the second electrode plate 1120 at the position where it connects to the second housing 2120, the conductive parts of the first electrode plate 1110 and the second electrode plate 1120 are completely out of contact with the housing 210. Even if the housing and the first electrode plate 1110 or the second electrode plate 1120 are contaminated with water or ice, the insulation performance of the disinfection and deodorizing device 200 will not be reduced. This effectively increases the voltage creepage distance, allowing the disinfection and deodorizing device 200 to operate in freezing or humid environments without abnormal discharge.

[0080] In one embodiment, please refer to Figure 6 and Figure 7 The first electrode plate 1112 is an insulating electrode plate. A conductive region 1113 is provided in the middle of one end face of the first electrode plate 1112. One end of the conductive region 1113 faces the second electrode plate 1120. The edge of the conductive region 1113 and the edge of the first electrode plate 1112 are both at a preset distance of 1115.

[0081] The first electrode plate 1112 is an insulating electrode plate. By setting a preset distance 1115, the conductive area 1113 of the first electrode plate 1112 will not come into contact with the housing 210. The conductive area 1113 is provided in the middle of one end face of the first electrode plate 1112. The two end faces of the first electrode plate 1112 can be completely insulated end faces, thereby reducing the risk of abnormal discharge caused by contact between the conductive area 1113 and the outside.

[0082] In one embodiment, the conductive region 1113 is formed by printing conductive silver paste. Of course, the invention is not limited to the examples given herein, and other methods can be used to form the conductive region 1113.

[0083] According to one embodiment of the present invention, please refer to Figure 7The preset distance 1115 is 6mm-12mm. It is understandable that when the distance between the conductive area 1113 of the first electrode plate 1112 and its edge is too close, i.e., less than 6mm, the voltage creepage distance is insufficient, potentially leading to arcing. By setting the preset distance 1115 within the range of 6mm to 12mm, the risk of arcing can be reduced, improving circuit safety and reliability. When the distance between the conductive area 1113 and the first electrode plate 1112 is too far, to achieve the same ionization effect, the area of ​​the first electrode plate 1112 is larger, which would create greater resistance to airflow.

[0084] In one embodiment, the first electrode plate 1112 is provided with a 10mm insulation treatment at a preset distance 1115.

[0085] According to one embodiment of the present invention, an insulating element is provided at the connection between the first housing 2110 and the first electrode sheet 1110, and an insulating element is provided at the connection between the second housing 2120 and the second electrode sheet 1120; or, insulating adhesive is sprayed on the contact surface between the first housing 2110 and the first electrode sheet 1110, and insulating adhesive is sprayed on the contact surface between the second housing 2120 and the second electrode sheet 1120.

[0086] It is understood that the insulating components and insulating adhesive can form an insulating layer between the electrode plates (including the first electrode plate 1110 and the second electrode plate 1120) and the housing (including the first housing 2110 and the second housing 2120), preventing current from passing through and helping to prevent the generation of electric arcs between the electrode plates and the housing, thus avoiding potential safety risks and equipment failures.

[0087] Understandably, the insulating component also provides mechanical support and a secure connection. It enhances the stability and tightness between the first electrode plate 1110 and the housing, preventing loosening or movement between them to ensure the reliability and performance of the device.

[0088] In one embodiment, the first electrode sheet 1110, the first outer shell 2110, the second electrode sheet 1120, and the second outer shell 2120 are coated with insulating adhesive or insulating paint at locations where water vapor or ice can come into contact, in order to achieve the best insulation effect.

[0089] According to one embodiment of the present invention, a first housing 2110 is provided with a first mounting groove 2111, which is adapted to connect a first electrode piece 1110, and / or, a second housing 2120 is provided with a second mounting groove 2121, which is adapted to connect a second electrode piece 1120. It is understood that the mounting grooves (including the first mounting groove 2111 and the second mounting groove 2121) can provide a stable fixed position, ensuring that the electrode pieces (including the first electrode piece 1110 and the second electrode piece 1120) are correctly installed and remain stable. The first electrode piece 1110 and the second electrode piece 1120 can maintain a set distance through the mounting grooves. The electrode pieces are installed in the grooves to prevent them from loosening or shifting. If it is necessary to replace the electrode pieces, simply remove the original electrode piece from the groove and insert a new electrode piece; no large-scale disassembly of the entire device is required, and the operator can replace different electrode pieces as needed.

[0090] According to one embodiment of the present invention, the second housing 2120 includes an insulating end plate 2122. When the second electrode sheet 1120 is provided with a conductive hole 1123, the insulating end plate 2122 is provided with a second ventilation hole 2123 corresponding to the conductive hole 1123. It is understood that the shape of the second ventilation hole 2123 corresponds to that of the conductive hole 1123. The matching shape of the second ventilation hole 2123 and the conductive hole 1123 can reduce air resistance and turbulence, ensuring smoother and more uniform airflow inside the catalyst assembly 100, thereby improving the purification effect. In addition, smoother airflow reduces the impact force on the second electrode sheet 1120, improving the reliability of the second electrode sheet 1120. Furthermore, the insulating end plate 2122 can provide insulation protection to prevent arcing between the electrode sheet and the housing.

[0091] According to one embodiment of the present invention, both the first outer shell 2110 and the second outer shell 2120 are provided with bosses 2124, which are adapted to limit the position of the catalyst block 1200. It is understood that by limiting the position of the catalyst block 1200, movement, swaying, or deviation from a predetermined position of the catalyst block 1200 can be prevented, thereby ensuring that the catalyst block 1200 remains stable during the operation of the catalyst assembly 100. Furthermore, it ensures that the catalyst block 1200 and the first outer shell 2110 and the second outer shell 2120 maintain a set distance, ensuring effective reaction of the catalyst block 1200, contributing to improved efficiency and catalytic effect of the catalyst block 1200, and enhancing the performance and purification effect of the device.

[0092] According to one embodiment of the present invention, at least one of the first housing 2110 and the second housing 2120 has a serrated boss 2124. It is understood that the serrated boss 2124 can increase the contact area between the housing (including the first housing 2110 and the second housing 2120) and the catalyst block 1200, making the contact between the limiting block and the catalyst block 1200 tighter and more stable, thereby increasing the limiting effect.

[0093] In one embodiment, the serrated boss 2124 can be inserted into the first ventilation hole 1210 of the catalyst block 1200, further enhancing the limiting effect on the catalyst block 1200.

[0094] According to one embodiment of the present invention, the disinfection and deodorization device 200 includes a power supply 220, which is electrically connected to the first electrode plate 1110 and the second electrode plate 1120; the housing 210 includes a third outer shell 2130, which is connected to the snap-fit ​​first outer shell 2110 and the second outer shell 2120, and forms a second receiving cavity 2150, in which the power supply 220 is disposed. It is understood that the power supply 220 is used to supply power to the first electrode plate 1110 and the second electrode plate 1120. As an example, the operating voltage range of the high-voltage power supply 220 used in this embodiment is 2 kV to 10 kV.

[0095] It should be noted that the first receiving cavity 2140 is suitable for placing the catalyst assembly 100, and the second receiving cavity 2150 is suitable for placing the power supply 220. Thus, the first outer shell 2110 and the second outer shell 2120 interlock to form an independent air duct 310 structure. The power supply 220, located in the second receiving cavity 2150, does not affect the airflow through the first receiving cavity 2140, ensuring that air can pass through the catalyst assembly 100 at maximum volume, thus ensuring catalytic performance and effectiveness. Furthermore, placing the catalyst assembly 100 and the power supply 220 in separate receiving cavities avoids the power supply 220 being affected by the electric field, thus preventing it from affecting its performance and lifespan. It also prevents the active substances generated by ionization from affecting the normal operation of the power supply 220. Therefore, separating the electrolyte solution of the power supply 220 and the gas generated by discharge into different cavities effectively avoids mutual interference and influence between the two.

[0096] According to one embodiment of the present invention, a limiting protrusion 2151 is provided on the cavity wall of the second receiving cavity 2150, and the power supply 220 is connected to the limiting protrusion 2151. The limiting protrusion 2151 is adapted to maintain a gap between the power supply 220 and the cavity wall of the second receiving cavity 2150.

[0097] It is understandable that maintaining a gap between the power supply 220 and the cavity walls of the second receiving cavity 2150 can reduce the impact of the first housing 2110, the second housing 2120 and the third housing 2130 being in a humid or icy environment on the power supply 220, thus protecting the performance and lifespan of the power supply 220.

[0098] According to one embodiment of the present invention, the limiting protrusion 2151 includes a support strip, a positioning groove is provided on the support strip, and a preset distance is provided between the positioning groove and the cavity wall where the support strip is located. The power supply 220 is connected to the positioning groove.

[0099] It is understood that there is a preset distance between the sidewall of the positioning groove and the sidewall of the second receiving cavity 2150, and a preset distance between the bottom of the positioning groove and the bottom wall of the second receiving cavity 2150. Thus, the power supply 220 is connected to the positioning groove, and a gap is maintained between the power supply 220 and the cavity wall of the second receiving cavity 2150. Furthermore, the positioning groove can also limit the movement of the power supply 220, thereby ensuring that the power supply 220 remains stable during the operation of the catalyst assembly 100.

[0100] In one embodiment, the preset spacing is 3mm. The power supply 220 maintains optimal operating condition during the operation of the disinfection and odor removal device. Of course, the invention is not limited to this embodiment, and the preset spacing can be other values.

[0101] It should be noted that the present invention does not limit the shape of the positioning groove, as long as the power supply 220 can maintain a gap between the cavity wall of the second receiving cavity 2150.

[0102] A refrigerator according to a third aspect embodiment of the present invention, please refer to Figure 8 The refrigerator includes a main body 300 and the aforementioned catalyst assembly 100 or the aforementioned sterilization and deodorization device 200. The main body 300 has an internal storage compartment (not shown in the figure). The catalyst assembly 100 is connected to the main body 300 and is used for sterilization and purification of the storage compartment. The main body 300 is provided with an air duct 310, which communicates with the storage compartment. The catalyst assembly 100 is disposed in the air duct 310, or alternatively, the catalyst assembly 100 is disposed at the air outlet of the air duct 310. The airflow in the air duct 310 sequentially passes through the second electrode plate 1120, the catalyst block 1200, and the first electrode plate 1110.

[0103] Understandably, a refrigerator's compartments can include a refrigerator compartment and a freezer compartment. The refrigerator compartment is used to preserve food, such as storing fresh fruits and vegetables. The freezer compartment is used to freeze and preserve food, such as storing meat. Since the freezer and refrigerator compartments are interconnected, gases within the compartments can diffuse freely. These gases include odor molecules, which can cause cross-contamination of odors between foods stored in different locations. Therefore, by incorporating a catalyst assembly 100, odor molecules can be purified, reducing the impact of cross-contamination and improving the user experience. The airflow entering the catalyst assembly 100 can be processed using the air duct 310 of the main body 300 or the air outlet of the air duct 310, ensuring that the air entering the compartments is odorless and resolving issues related to ice hygiene and odor.

[0104] Through the guiding effect of the fan in the air duct 310, the airflow flows from the second electrode plate 1120 to the first electrode plate 1110. Odor molecules first pass through the electrode tip 1111 of the first electrode plate 1110. The active substances generated at the electrode tip 1111 can purify and disinfect some of the odor molecules. The remaining odor molecules are adsorbed by the catalyst block 1200. At the same time, the ozone generated by the active substances at the electrode tip 1111 reacts with the adsorbed odor molecules to decompose them. This not only releases the adsorption catalytic sites of the catalyst block 1200, but also reduces the ozone concentration and prevents ozone from exceeding the standard.

[0105] According to one embodiment of the present invention, when the disinfection and deodorization device 200 is equipped with a power supply 220, the side of the disinfection and deodorization device 200 near the power supply 220 is connected to the side wall of the air duct 310, and the side of the disinfection and deodorization device 200 away from the power supply 220 is tilted towards the ground at a set angle.

[0106] Understandably, the refrigerator's air duct 310 is prone to creating a humid environment. Tilting the deodorizer 200 prevents condensation from entering the power supply 220 side of the deodorizer 200. If the power supply 220 is exposed to a humid environment, it may cause a short circuit or malfunction. By tilting the deodorizer 200 away from the power supply 220, the chance of liquid entering the power supply 220 can be reduced, improving the stability and reliability of the power supply 220.

[0107] Finally, it should be noted that the above embodiments are only for illustrating the present invention and not for limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A catalyst assembly (100), characterized in that, include: The electrode (1100) includes a first electrode sheet (1110) and a second electrode sheet (1120) arranged at intervals, wherein the first electrode sheet (1110) includes an electrode tip (1111) disposed toward the second electrode sheet (1120). A catalyst block (1200) is disposed between the first electrode plate (1110) and the second electrode plate (1120). The catalyst block (1200) is provided with a first ventilation hole (1210), which is adapted to guide the airflow flowing through the first electrode plate (1110) through the catalyst block (1200) to the second electrode plate (1120). At least two of the electrode tips (1111) are separated by the first vent (1210).

2. The catalyst assembly (100) according to claim 1, characterized in that, All of the electrode tips (1111) are respectively inserted into different first ventilation holes (1210). or, All of the electrode tips (1111) are located on different sides of the exterior of the catalyst block (1200), and the electrode tips (1111) extend along the channel direction of the first vent (1210).

3. The catalyst assembly (100) according to claim 2, characterized in that, All the electrode tips (1111) are distributed along a straight line.

4. The catalyst assembly (100) according to claim 2, characterized in that, The distance between the electrode tip (1111) and the conductive part (1122) of the second electrode plate (1120) is the first spacing (1130), and the distance between the catalyst block (1200) and the conductive part (1122) of the second electrode plate (1120) is the second spacing (1140). The first spacing (1130) is smaller than the second spacing (1140). Wherein, when the conductive part (1122) is provided with a conductive hole (1123), the first distance (1130) is the closest distance between the electrode tip (1111) and the conductive hole (1123); When the conductive part (1122) is a solid structure, the first spacing (1130) is the vertical distance between the electrode tip (1111) and the plane where the solid structure is located.

5. The catalyst assembly (100) according to claim 4, characterized in that, The first electrode sheet (1110) includes a first electrode plate (1112), and the second electrode sheet (1120) includes a second electrode plate (1121). The first electrode plate (1112) and the second electrode plate (1121) are arranged opposite to each other.

6. The catalyst assembly (100) according to claim 5, characterized in that, The first electrode plate (1112) is an insulating electrode plate. A conductive region (1113) is provided in the middle of one end face of the first electrode plate (1112), and the end face with the conductive region (1113) faces the second electrode sheet (1120).

7. The catalyst assembly (100) according to claim 6, characterized in that, The edge of the conductive region (1113) is at a predetermined distance (1115) from the edge of the first electrode plate (1112). And / or, The conductive area (1113) is provided with a mounting hole (1114), and the electrode tip (1111) is fixed in the mounting hole (1114) and faces the second electrode plate (1120).

8. The catalyst assembly (100) according to claim 5, characterized in that, The first electrode plate (1112) and the electrode tip (1111) are integrally formed. And / or, the number of electrode tips (1111) is two, and they are located at opposite ends of the first electrode plate (1112). And / or, the electrode tip (1111) is triangular.

9. The catalyst assembly (100) according to claim 5, characterized in that, The first ventilation hole (1210) is multiple, and the conductive part (1122) of the second electrode plate (1121) is provided with multiple conductive holes (1123), and the conductive holes (1123) are provided corresponding to the first ventilation hole (1210).

10. The catalyst assembly (100) according to claim 2, characterized in that, The first ventilation hole (1210) is circular, triangular, quadrilateral, pentagonal, hexagonal or irregular in shape.

11. The catalyst assembly (100) according to claim 10, characterized in that, The first ventilation hole (1210) is evenly distributed on the catalyst block (1200). or, The diameter of the first ventilation hole (1210) near the electrode tip (1111) is smaller than the diameter of the first ventilation hole (1210) away from the electrode tip (1111).

12. The catalyst assembly (100) according to any one of claims 1 to 10, characterized in that, The electric field between the electrode tip (1111) and the conductive part (1122) of the second electrode plate (1120) is less than 1 kV / mm.

13. The catalyst assembly (100) according to claim 12, characterized in that, The voltage difference between the electrodes (1100) is 2 kV to 10 kV, and the first distance (1130) between the electrode tip (1111) and the conductive part (1122) of the second electrode plate (1120) is 2 mm to 15 mm.

14. A disinfection and deodorization device (200), characterized in that, include: The catalyst assembly (100) according to any one of claims 1 to 13; The housing (210) has a first receiving cavity (2140) and a second receiving cavity (2150) formed inside. The catalyst assembly (100) is disposed in the first receiving cavity (2140). The opposite sides of the first receiving cavity (2140) are open to form an airflow channel through the catalyst assembly (100). A power source (220) is electrically connected to the first electrode plate (1110) and the second electrode plate (1120). The power source (220) is disposed in the second receiving cavity (2150) and is located outside the airflow channel.

15. The disinfection and deodorization device (200) according to claim 14, characterized in that, The opening of the housing (210) is provided with a first mounting groove (2111) and a second mounting groove (2121), the first mounting groove (2111) is adapted to connect the first electrode plate (1110), and the second mounting groove (2121) is adapted to connect the second electrode plate (1120). And / or, A limiting protrusion (2151) is provided on the cavity wall of the second receiving cavity (2150), and the power supply (220) is connected to the limiting protrusion (2151). The limiting protrusion (2151) is adapted to maintain a gap between the power supply (220) and the cavity wall of the second receiving cavity (2150).

16. The disinfection and deodorization device (200) according to claim 14, characterized in that, The housing (210) includes: A first outer shell (2110) and a second outer shell (2120) are interlocked, and the first outer shell (2110) and the second outer shell (2120) form the first receiving cavity (2140). The first electrode plate (1110) is connected to the first outer shell (2110), and the second electrode plate (1120) is connected to the second outer shell (2120). The third housing (2130) is connected to the snap-fit ​​first housing (2110) and the second housing (2120) and forms the second receiving cavity (2150).

17. The disinfection and deodorization device (200) according to claim 16, characterized in that, An insulating component is provided at the connection between the first outer shell (2110) and the first electrode plate (1110), and an insulating component is provided at the connection between the second outer shell (2120) and the second electrode plate (1120); or, The contact surface between the first outer shell (2110) and the first electrode plate (1110) is coated with insulating adhesive, and the contact surface between the second outer shell (2120) and the second electrode plate (1120) is coated with insulating adhesive. or, The second housing (2120) includes an insulating end plate (2122). When the second electrode plate (1120) is provided with a conductive hole (1123), the insulating end plate (2122) is provided with a second ventilation hole (2123) corresponding to the conductive hole (1123).

18. The disinfection and deodorization device (200) according to claim 16, characterized in that, Both the first outer shell (2110) and the second outer shell (2120) are provided with a boss (2124), which is adapted to limit the catalyst block (1200).

19. A refrigerator, characterized in that, include: The main body (300) has an internal chamber for housing; The catalyst assembly (100) according to any one of claims 1 to 13, or the odor eliminator (200) according to any one of claims 14 to 18. The catalyst assembly (100) is connected to the body (300) and is used to sterilize and purify the containment chamber; The main body (300) is provided with an air duct (310), which is connected to the accommodating chamber; The catalyst assembly (100) is disposed in the air duct (310), and the airflow in the air duct (310) passes sequentially through the second electrode plate (1120), the catalyst block (1200) and the first electrode plate (1110).

20. The refrigerator according to claim 19, characterized in that, When the disinfection and deodorization device (200) is equipped with a power supply (220), the side of the disinfection and deodorization device (200) close to the power supply (220) is connected to the side wall of the air duct (310), and the side of the disinfection and deodorization device (200) away from the power supply (220) is tilted towards the ground at a set angle.

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