Catalyst assembly, disinfecting and deodorizing device and refrigerator
By designing catalyst components in the refrigerator and using the ionization electric field and photocatalyst layer to generate plasma and ozone, the odor and bacteria problems in the refrigerator are solved, and the efficient purification effect is achieved without frequent replacement of activated carbon and additional devices, improving the user experience.
Patent Information
- Application Number
- CN202420943155.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-29
Smart Images
Figure CN222239626U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of household appliances, in particular to a catalyst component, a sterilizing and odor purifying device and a refrigerator. Background Art
[0002] At present, users are paying more and more attention to the sanitation of household appliances. Take refrigerators as an example. At present, the freezer compartment and ice-making compartment of refrigerators usually share a large freezing space and air duct. The freezer compartment usually contains ingredients with odor properties such as seafood, meat, etc., while the ice box is used to store ice cubes. Since the freezer compartment and the ice box share an air duct, it is easy to cause ice cubes to have a cross-flavor phenomenon; at the same time, if the cold storage compartment, the freezer compartment and the ice-making compartment also share an air duct, the odor molecules generated by the odor ingredients such as durian, onion, kimchi, leftovers, etc. placed in the cold storage compartment will enter the freezer compartment and then enter the ice-making compartment, thereby causing the odor of ice cubes, and it is also easy to breed bacteria. Therefore, it is necessary to sterilize and disinfect household appliances and purify the taste. However, most of the existing activated carbon bags or activated carbon are used as purification materials. Activated carbon is easy to be saturated and inactivated and needs to be frequently replaced, which is troublesome to use. In addition, activated carbon does not have the function of sterilization and disinfection, and other sterilization devices need to be set up for use, which is troublesome to use. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes a catalyst assembly to solve the defect that other sterilization devices need to be set up for disinfection and deodorization of the existing refrigerator, which is troublesome to use.
[0004] The utility model also provides a deodorizing and purifying device.
[0005] The utility model also provides a refrigerator.
[0006] According to the first embodiment of the utility model, the catalyst assembly comprises:
[0007] The electrode comprises a first electrode sheet and a second electrode sheet which are arranged at intervals, wherein the first electrode sheet is provided with at least one discharge component, and the discharge component and the second electrode sheet are suitable for forming an ionization electric field;
[0008] The first catalyst block is disposed between the first electrode sheet and the second electrode sheet. The first catalyst block is provided with a plurality of first ventilation holes. The density of the first ventilation holes close to the discharge component is greater than the density of the first ventilation holes far from the discharge component.
[0009] According to the catalyst assembly of the embodiment of the utility model, the discharge effect is formed between the discharge component and the second electrode sheet, which can ionize the air to produce plasma, ozone, negative ions and other active substances. Plasma, ozone, negative ions and other active substances can kill bacteria, and the first catalyst block can also degrade excess ozone to prevent ozone from spreading and affecting the normal use of users. The density of the first ventilation hole close to the discharge component is greater than the density of the first ventilation hole far from the discharge component, so that the gas flow effect near the discharge component is better, the active substance generated by ionization is more fluid, and the catalytic and disinfection effects are better.
[0010] According to one embodiment of the present invention, the outer surface of the first catalyst block is coated with a photocatalyst layer.
[0011] According to an embodiment of the present invention, the photocatalyst layer is disposed in a region of the first catalyst block corresponding to the discharge component.
[0012] According to an embodiment of the present invention, the discharge component is an electrode needle, and the thickness of the photocatalyst layer gradually increases along the length direction of the electrode needle and toward the tip of the electrode needle.
[0013] According to an embodiment of the present utility model, the discharge component is an electrode needle, and the electrode needle is penetrated through the first ventilation hole.
[0014] According to an embodiment of the present invention, the number of the electrode needles is two, one of the electrode needles is connected to the first end of the first electrode sheet, and the other electrode needle is connected to the second end of the first electrode sheet.
[0015] According to an embodiment of the present invention, a second catalyst block is further included. The second catalyst block is arranged on a side of the second electrode sheet facing away from the first catalyst block. The second catalyst block is provided with a second ventilation hole.
[0016] According to an embodiment of the present invention, the second electrode sheet is provided with a photocatalyst layer.
[0017] The deodorizer according to the second embodiment of the utility model comprises:
[0018] The above-mentioned catalyst assembly;
[0019] A shell, wherein a receiving cavity is formed inside the shell, and the catalyst assembly is arranged in the receiving cavity;
[0020] A power source is adapted to supply power to the first electrode sheet and the second electrode sheet.
[0021] A refrigerator provided according to an embodiment of the third aspect of the utility model includes the above-mentioned catalyst assembly.
[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 This is a schematic diagram of the explosion structure of a catalyst assembly provided by an embodiment of the utility model;
[0025] Figure 2 It is a schematic cross-sectional structural diagram of a first catalyst block provided by an embodiment of the utility model;
[0026] Figure 3 It is a schematic structural diagram of a first catalyst block and a first electrode sheet provided by an embodiment of the utility model;
[0027] Figure 4 yes Figure 3 A schematic diagram of a local enlarged structure at A provided in the embodiment;
[0028] Figure 5 It is a schematic diagram of the structure of a sterilizing and purifying device provided by one embodiment of the utility model.
[0029] Reference numerals:
[0030] 10. Catalyst assembly;
[0031] 20. Shell;
[0032] 30. Power supply;
[0033] 110, electrode; 111, first electrode sheet; 112, second electrode sheet; 113, discharge component;
[0034] 120. a first catalyst block; 121. a first ventilation hole;
[0035] 130. Photocatalyst layer;
[0036] 140. A second catalyst block; 141. A second vent. DETAILED DESCRIPTION
[0037] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0038] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0039] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, wherein the fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0040] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0042] According to the catalyst assembly 10 of the present invention, please refer to Figures 1 to 3 The catalyst assembly 10 includes an electrode 110 and a first catalyst block 120; the electrode 110 includes a first electrode sheet 111 and a second electrode sheet 112 arranged at intervals, the first electrode sheet 111 is provided with at least one discharge component 113, the discharge component 113 and the second electrode sheet 112 are suitable for forming an ionization electric field; the first catalyst block 120 is arranged between the first electrode sheet 111 and the second electrode sheet 112, the first catalyst block 120 is provided with a plurality of first ventilation holes 121, and the density of the first ventilation holes 121 close to the discharge component 113 is greater than the density of the first ventilation holes 121 away from the discharge component 113.
[0043] According to the catalyst assembly 10 of the embodiment of the utility model, the discharge effect is formed between the discharge component 113 and the second electrode sheet 112, and the air can be ionized to produce plasma, ozone, negative ions and other active substances. Active substances such as plasma, ozone, and negative ions can kill bacteria, and the first catalyst block 120 can also degrade excess ozone to prevent ozone from spreading and affecting the normal use of users. The density of the first ventilation holes 121 close to the discharge component 113 is greater than the density of the first ventilation holes 121 far from the discharge component 113, so that the gas flow effect at the position close to the discharge component 113 is better, the active substances generated by ionization are more fluid, and the catalytic and disinfection effects are better.
[0044] It is understandable that the first catalyst block 120 can adsorb and decompose the odor molecules, and then ozone can oxidize the odor molecules adsorbed on the first catalyst block 120, thereby releasing the active sites of the first catalyst block 120. In other words, the electric field of the discharge component 113 can provide active substances for the first catalyst block 120, promote the catalyst to react the odor molecules to generate odorless and harmless gas, and then the first catalyst block 120 can be recycled without the user frequently replacing the catalyst. In addition, the first catalyst block 120 can also degrade excess ozone to prevent ozone from spreading and affecting the normal use of users.
[0045] Based on the principle of high-voltage plasma synergistic catalysis, the active substances generated by the ionization of the discharge component 113 can purify odors in the air and can also sterilize and disinfect. The catalyst assembly 10 only needs to use the electrode 110 and the first catalyst block 120, and there is no need to additionally set up an ozone generator or ultraviolet lamp. It occupies a small space and has a good sterilization effect.
[0046] It is understandable that the catalyst in the first catalyst block 120 can be a manganese-based catalyst, such as iron-manganese alloy, copper-manganese alloy, etc., or activated carbon. Of course, it can also be other materials as long as it can absorb impurities and odor molecules in the air.
[0047] The first electrode sheet 111 can be a positive electrode or a negative electrode. In a specific application scenario, the polarity of the first electrode sheet 111 and the second electrode sheet 112 may be reversed. For example, the surface of the electrode 110 may be affected by contamination, corrosion or accumulation, affecting its performance and effect. By reversing the polarity, the electrochemical reaction on the surface of the electrode 110 can be changed, thereby removing contaminants, corrosion products or repairing the surface of the electrode 110.
[0048] The first catalyst block 120 has the functions of absorbing and decomposing odor and removing ozone, and is used to prevent the ozone concentration from exceeding the standard (the ozone concentration in the space is less than 50 ppb).
[0049] In one embodiment, the distance between the first catalyst block 120 and the second electrode sheet 112 is smaller than the distance between the discharge component 113 and the second electrode sheet 112 .
[0050] The shape of the first ventilation hole 121 may be any shape. For example, the shape of the first ventilation hole 121 may be circular, triangular, quadrilateral, pentagonal, hexagonal or other special-shaped structures.
[0051] In one embodiment, a plurality of first ventilation holes 121 are provided on the first catalyst block 120, and the first ventilation holes 121 can be evenly distributed on the first catalyst block 120, for example, a honeycomb structure can be formed, and the honeycomb structure has good stability, and thus the first catalyst block 120 has high strength. Of course, the first catalyst block 120 is not limited to the honeycomb structure and can also be other structures. In addition, the aperture sizes of the first ventilation holes 121 can be inconsistent.
[0052] It should be noted that the "density of the first ventilation holes 121" refers to the situation that the number of ventilation holes near the discharge component 113 in the first catalyst block 120 is relatively large, while the number of ventilation holes far from the discharge component 113 is relatively small. The increase in density means that the spacing between the ventilation holes is denser in the area near the discharge component 113, or there are more ventilation holes in the same area.
[0053] Specifically, the aperture of the first ventilation hole 121 close to the discharge component 113 may be smaller, so that the number of ventilation holes close to the discharge component 113 is relatively large, and the sum of the hole wall areas formed by the first ventilation holes 121 of the same area of the first catalyst block 120 is larger, and the active substances and odor molecules are more easily adsorbed on the hole wall, and the adsorption effect on ozone is better. Alternatively, the aperture of the first ventilation holes 121 is the same, and the spacing between the first ventilation holes 121 and the first ventilation holes 121 is smaller, so that the number of ventilation holes close to the discharge component 113 is relatively large. Similarly, the sum of the hole wall areas formed by the first ventilation holes 121 of the same area of the first catalyst block 120 is larger, and the active substances and odor molecules are more easily adsorbed on the hole wall, and the adsorption effect on ozone is better.
[0054] In one embodiment, the density of the first ventilation holes 121 gradually increases toward the discharge component 113 .
[0055] It is understood that "gradually increasing" means that the density of the first ventilation holes 121 presents a trend of gradual increase in space or distribution within the component. This increase can be continuous or segmented, but presents a trend of gradual increase as a whole.
[0056] The figure shows a segmented way of increasing density. For example, the area of the catalyst assembly 10 close to the discharge component 113 is divided into an inner and outer ring. The closer to the inner ring, the greater the density of the first ventilation holes 121.
[0057] It can be understood that as the density of the first ventilation holes 121 increases, the generation and release of active substances around the discharge component 113 will also increase, thereby improving the sterilization and disinfection effect on microorganisms (such as bacteria, viruses, etc.) in the air, ensuring that the active substances are released more concentratedly in the target area and enhancing the purification efficiency.
[0058] As the density of the first ventilation holes 121 increases, the ventilation effect near the first ventilation holes 121 close to the discharge component 113 can be better improved, thereby ensuring that ozone can be catalyzed and improving the sterilization effect.
[0059] It can be understood that the aperture of the first ventilation hole 121 close to the tip of the electrode 110 is smaller than the set aperture, and the aperture of the first ventilation hole 121 away from the tip of the electrode 110 is larger than the set aperture, wherein the set aperture is the maximum aperture that does not affect air flow.
[0060] In this embodiment, please refer to Figure 2 The hole wall thickness of the first ventilation holes 121 close to the discharge component 113 is less than the hole wall thickness of the first ventilation holes 121 far from the discharge component 113, so that the density of the first ventilation holes 121 is greater the closer to the discharge component 113.
[0061] According to an embodiment of the present invention, please refer to Figure 3 and Figure 4 , the outer surface of the first catalyst block 120 is coated with a photocatalyst layer 130. It is understandable that the photocatalyst layer 130 helps to enhance the photocatalytic effect of the air purifier. Plasma also has luminescent properties. The photocatalyst can use the ultraviolet light or visible light generated by the plasma to excite the active substance, and produce an oxidation or reduction reaction under the action of light, thereby effectively decomposing organic pollutants, bacteria, viruses, etc. in the air, and improving the air purification efficiency and sterilization effect. The photocatalyst layer 130 is coated on the outer surface of the first catalyst block 120, so that the light can fully irradiate the catalyst surface, thereby maximally stimulating the catalytic reaction.
[0062] It is understandable that the photocatalytic layer can be coated on the outer surface of the first catalyst block 120 by spraying, sputtering, etc.
[0063] It should be noted that the outer surface of the first catalyst block 120 includes the end surface of the first catalyst block 120 and also includes the hole wall in the first ventilation hole 121 .
[0064] It should be noted that the photocatalytic layer can be composed of one or more of a titanium dioxide layer, a zinc oxide layer, a tin oxide layer, a zirconium dioxide layer, a cadmium sulfide layer, and the like.
[0065] According to an embodiment of the present invention, please refer to Figure 3 and Figure 4 The photocatalyst layer 130 is disposed in a region of the first catalyst block 120 corresponding to the discharge component 113 .
[0066] It can be understood that by placing the photocatalyst layer 130 near the discharge component 113, the active substances produced by the discharge component 113 are effectively utilized, and the maximum overlap between light irradiation and the release of active substances can be ensured, thereby maximizing the photocatalytic effect and allowing the photocatalytic reaction to proceed more efficiently.
[0067] The photocatalyst layer 130 and the discharge component 113 cooperate with each other to form a systematic synergy. The discharge component 113 provides active substances, and the photocatalyst layer 130 uses these active substances to perform photocatalytic reactions, thereby achieving higher efficiency of the air purifier in treating organic pollutants.
[0068] According to an embodiment of the present invention, please refer to Figure 3 and Figure 4 The discharge component 113 is an electrode needle, and the thickness of the photocatalyst layer 130 gradually increases along the length direction of the electrode needle and toward the tip of the electrode needle.
[0069] It is understandable that the electrode needle has the characteristic of tip discharge, which can generate high-energy active substances. The photocatalyst layer 130 is arranged along the length direction of the electrode needle and toward the tip of the electrode needle. This design can ensure that the photocatalyst layer 130 is fully exposed to the area where the discharge component 113 releases the active substance, and maximizes the use of the active substance to participate in the catalytic reaction.
[0070] The thickness of the photocatalyst layer 130 gradually increases along the length direction of the electrode needle. By gradually increasing the thickness of the photocatalyst layer 130, the photocatalytic effect is combined with the discharge characteristics of the tip of the electrode needle. The photocatalytic effect is strongest at the position where the discharge effect is strongest. Light can penetrate more fully into the catalyst layer, and active substances can participate in the catalytic reaction more evenly, thereby improving the catalytic effect and the efficiency of air purification.
[0071] According to an embodiment of the present invention, please refer to Figure 1 The discharge component 113 is an electrode needle, which is inserted into the first ventilation hole 121. The electrode needle extends into the ventilation hole where air circulates, ensuring that the active substances generated by the discharge can directly contact the pollutants in the air, thereby achieving more efficient air purification. The insertion of the electrode needle will not hinder the circulation of air, but can use the path through which the air flows to make the active substances generated by the discharge fully contact the pollutants in the air, thereby improving the air purification efficiency.
[0072] According to an embodiment of the present invention, please refer to Figure 1, the number of electrode needles is two, one electrode needle is connected to the first end of the first electrode sheet 111, and the other electrode needle is connected to the second end of the first electrode sheet 111. It can be understood that the density of the first ventilation holes 121 close to the discharge component 113 is greater than the density of the first ventilation holes 121 far away from the discharge component 113, that is, the first ventilation holes 121 on the first catalyst block 120 are dense at both ends and sparse in the middle. On the one hand, the densely distributed first ventilation holes 121 have a good catalytic effect on the generated odor molecules. On the other hand, the two discharge components 113 are respectively located at both ends of the first electrode 110 plate, which will not affect the wind passing through the middle of the first catalyst block 120, reducing the impact on the original air duct, thereby ensuring smooth air duct.
[0073] According to an embodiment of the present invention, please refer to Figure 5 , further comprising a second catalyst block 140, which is disposed on the side of the second electrode sheet 112 facing away from the first catalyst block 120, and is provided with a second ventilation hole. By disposing the second catalyst block 140 on the side of the second electrode sheet 112 facing away from the first catalyst block 120, even if the ozone generated by the catalytic assembly diffuses in the reverse direction, it can be catalytically decomposed by the second catalyst block 140, ensuring that the ozone does not exceed the standard when the active substance leaves the catalyst assembly 10.
[0074] According to an embodiment of the present invention, the second electrode sheet 112 is provided with a photocatalyst layer 130. It is understandable that in this embodiment, the second electrode sheet 112 not only has the traditional electrochemical catalytic function, but also adds the photocatalyst layer 130, so that the air purifier has more purification means. This multifunctional design can more comprehensively handle different types of pollutants, improving the scope of application and purification effect of the air purifier.
[0075] According to the embodiment of the utility model, please refer to Figure 5 The deodorizer includes the above-mentioned catalyst assembly 10, a shell 20 and a power supply 30; the shell 20 has a receiving cavity formed inside the shell 20, and the catalyst assembly 10 is arranged in the receiving cavity; the power supply 30 is suitable for supplying power to the first electrode sheet 111 and the second electrode sheet 112.
[0076] It should be noted that, since the deodorizer 10 includes the above-mentioned catalyst assembly 10, the contents of the first embodiment of the utility model can be used to explain the deodorizer of the second embodiment, so the same contents will not be repeated.
[0077] The power supply is an AC power supply or a pulse power supply. As an example, the operating voltage range of the high voltage power supply 30150 used in this embodiment is 2 to 5 KV and the frequency is 5 to 25 KHZ.
[0078] According to an embodiment of the utility model, a fan (not shown) is further included, and the wind path of the fan sequentially passes through the second electrode sheet 112, the first catalyst block 120 and the first electrode sheet 111. The fan can drive the airflow to flow through the second electrode sheet 112, the first catalyst block 120 and the first electrode sheet 111, and the odor molecules in the airflow react chemically under the action of the high-voltage electric field and the catalyst to form harmless and odorless gas, and a large amount of plasma and negative ions can also be released through the tip of the electrode 110 to the external space for sterilization and disinfection.
[0079] In one embodiment, the catalytic start logic of the catalyst assembly is associated with the fan. That is, the energization of the electrode 110 of the catalyst assembly is related to the start and stop of the fan. For example, when the fan is turned on, the electrode 110 of the catalyst assembly is energized, so that the passing wind can be catalytically purified by the catalyst assembly to form harmless and odorless gas.
[0080] The refrigerator provided according to the embodiment of the utility model includes the above-mentioned catalyst assembly 10. By setting the catalyst assembly 10, odor molecules can be purified, the influence of cross-flavor can be reduced, and the user experience can be improved. It should be noted that since the deodorizer 10 includes the above-mentioned catalyst assembly 10, the contents of the first embodiment of the utility model can be used to explain the refrigerator of the third embodiment, so the same contents will not be repeated.
[0081] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements 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 included in the scope of the claims of the present invention.
Claims
1. A catalyst assembly (10), characterized in that: include: An electrode (110) comprising a first electrode sheet (111) and a second electrode sheet (112) arranged at an interval, wherein the first electrode sheet (111) is provided with at least one discharge component (113), and the discharge component (113) and the second electrode sheet (112) are suitable for forming an ionization electric field; A first catalyst block (120) is arranged between the first electrode sheet (111) and the second electrode sheet (112), and the first catalyst block (120) is provided with a plurality of first ventilation holes (121), wherein the density of the first ventilation holes (121) close to the discharge component (113) is greater than the density of the first ventilation holes (121) far from the discharge component (113).
2. The catalyst assembly (10) according to claim 1, characterized in that The outer surface of the first catalyst block (120) is coated with a photocatalyst layer (130).
3. The catalyst assembly (10) according to claim 2, characterized in that The photocatalyst layer (130) is disposed in a region of the first catalyst block (120) corresponding to the discharge component (113).
4. The catalyst assembly (10) according to claim 2, characterized in that The discharge component (113) is an electrode needle, and the thickness of the photocatalyst layer (130) gradually increases along the length direction of the electrode needle and toward the tip of the electrode needle.
5. The catalyst assembly (10) according to claim 1, characterized in that The discharge component (113) is an electrode needle, and the electrode needle is inserted into the first ventilation hole (121).
6. The catalyst assembly (10) according to claim 5, characterized in that The number of the electrode needles is two, one of the electrode needles is connected to the first end of the first electrode sheet (111), and the other of the electrode needles is connected to the second end of the first electrode sheet (111).
7. The catalyst assembly (10) according to claim 5, characterized in that The invention also comprises a second catalyst block (140), wherein the second catalyst block (140) is arranged on a side of the second electrode sheet (112) facing away from the first catalyst block (120), and the second catalyst block (140) is provided with a second ventilation hole.
8. The catalyst assembly (10) according to claim 1, characterized in that The second electrode sheet (112) is provided with a photocatalyst layer (130).
9. A deodorizing and purifying device, characterized in that: include: The catalyst assembly (10) according to any one of claims 1 to 8; A housing (20), wherein a housing cavity is formed inside the housing (20), and the catalyst assembly (10) is arranged in the housing cavity; A power source (30) is adapted to supply power to the first electrode sheet (111) and the second electrode sheet (112).
10. A refrigerator, characterized in that: A catalyst assembly (10) comprising the catalyst assembly (10) according to any one of claims 1 to 8.