Catalyst assembly, disinfecting and deodorizing device and refrigerator

Abstract

The invention relates to the technical field of household appliances, and provides a catalyst assembly, a disinfecting and deodorizing device and a refrigerator. The catalyst assembly comprises an electrode which comprises a first electrode plate and a second electrode plate which are arranged at an interval; the first catalyst block is arranged between the first electrode plate and the second electrode plate, and a first ventilation hole is formed in the first catalyst block; one side, facing the second electrode plate, of the first electrode plate is provided with an electrode tip, and the electrode tip penetrates through the first ventilation hole. According to the catalyst assembly disclosed by the embodiment of the invention, the electrode tip penetrates through the first vent hole of the first catalyst block, a point discharge effect is formed between the electrode tip and the second electrode plate, air is ionized to generate active substances such as plasma, ozone and negative ions, and bacteria can be killed through the active substances; the first catalyst block can adsorb and decompose odor molecules, and then ozone oxidizes the odor molecules adsorbed on the first catalyst block, so that active sites of the first catalyst block are released.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a catalyst component, a deodorizer 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, and activated carbon does not have the function of sterilization and disinfection. Other sterilization devices need to be set up for use, which takes up a lot of space. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention proposes a catalyst assembly to solve the defects of the existing disinfection and odor removal that the catalyst assembly needs to be frequently replaced and occupies a large space.

[0004] The invention also provides a deodorizing and purifying device.

[0005] The invention also provides a refrigerator.

[0006] The catalyst assembly according to the first embodiment of the present invention comprises:

[0007] The electrode comprises a first electrode sheet and a second electrode sheet which are arranged at an interval;

[0008] A first catalyst block is disposed between the first electrode sheet and the second electrode sheet, and the first catalyst block is provided with a first ventilation hole;

[0009] An electrode tip is provided on a side of the first electrode sheet facing the second electrode sheet, and the electrode tip passes through the first ventilation hole.

[0010] According to the catalyst assembly of the embodiment of the present invention, the electrode tip is penetrated through the first ventilation hole of the first catalyst block, and the electrode tip part passes through the first ventilation hole of the first catalyst block, forming a discharge area on one side of the first catalyst block and the second electrode sheet. A tip discharge effect is formed between the electrode tip and the second electrode sheet, and the air is ionized to produce active substances such as plasma, ozone, and negative ions. Active substances such as plasma, ozone, and negative ions can kill bacteria, and the first catalyst block can adsorb and decompose odor molecules, and then ozone can oxidize the odor molecules adsorbed on the first catalyst block, thereby releasing the active sites of the first catalyst block. In other words, the electric field at the electrode tip can provide active substances for the first catalyst block, promote the catalyst to react the odor molecules to generate odorless and harmless gases, and then the first catalyst block can be recycled without the user frequently replacing the catalyst. In addition, the first catalyst block can also degrade excess ozone to avoid ozone diffusion and affect the normal use of users.

[0011] According to one embodiment of the present invention, the first catalyst block is provided with a plurality of the first ventilation holes, and the aperture of the first ventilation hole close to the electrode tip is smaller than the aperture of the first ventilation hole far from the electrode tip.

[0012] According to one embodiment of the present invention, the first electrode sheet includes a first electrode plate, the electrode tip is connected to the first electrode plate, the second electrode sheet includes a second electrode plate, and the first electrode plate and the second electrode plate are parallel.

[0013] According to one embodiment of the present invention, the first electrode sheet includes two electrode tips, one of the electrode tips is connected to the first end of the first electrode plate, and the other of the electrode tips is connected to the second end of the first electrode plate.

[0014] According to one embodiment of the present invention, it further includes a second catalyst block, the second catalyst block is connected to 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, and the second electrode sheet is a negative electrode sheet.

[0015] According to an embodiment of the present invention, the diameter of the second ventilation hole is smaller than the diameter of the first ventilation hole.

[0016] According to one embodiment of the present invention, the first catalyst block comprises a carrier, and a catalyst coating is disposed on the surface of the carrier.

[0017] The deodorizer according to the second aspect of the present invention 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 disposed in the accommodating cavity and is suitable for supplying power to the first electrode plate and the second electrode plate.

[0021] According to one embodiment of the present invention, the accommodating chamber includes a first accommodating chamber and a second accommodating chamber; the first accommodating chamber is suitable for placing the catalyst assembly, and the second accommodating chamber is suitable for placing the power supply; the shell includes a first outer shell, a second outer shell and a third outer shell, and the first outer shell and the second outer shell are buckled together to form the first accommodating chamber; the third outer shell is connected to the buckled first outer shell and the second outer shell to form the second accommodating chamber.

[0022] According to one embodiment of the present invention, the device further comprises a fan, wherein an air path of the fan passes through the second electrode sheet, the first catalyst block and the first electrode sheet in sequence.

[0023] A refrigerator according to a third aspect of the present invention includes:

[0024] A main body, with a receiving chamber formed inside;

[0025] The catalyst assembly is connected to the body and is used to sterilize and purify the containing chamber.

[0026] According to one embodiment of the present invention, the accommodating chamber includes an ice-making chamber, the ice-making chamber is suitable for storing ice cubes, the main body is provided with an air duct, the air duct is connected to the ice-making chamber, the catalyst assembly is arranged in the air duct, or the catalyst assembly is arranged at the air outlet of the air duct.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 is a schematic structural diagram of a catalyst assembly provided by one embodiment of the present invention;

[0030] Figure 2 is a schematic structural diagram of a first catalyst block provided by an embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of a sterilizing and purifying device provided by one embodiment of the present invention.

[0032] Reference numerals:

[0033] 10. Deodorizer;

[0034] 100. Catalyst assembly;

[0035] 110, electrode; 111, first electrode sheet; 112, electrode tip; 113, first electrode plate;

[0036] 114. a second electrode sheet; 115. a second electrode plate;

[0037] 120. a first catalyst block; 121. a first ventilation hole;

[0038] 130. a second catalyst block; 131. a second ventilation hole;

[0039] 140, housing; 141, first housing; 142, second housing; 143, third housing; 144, accommodating chamber; 145, first accommodating chamber; 146, second accommodating chamber;

[0040] 150. Power supply. DETAILED DESCRIPTION

[0041] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "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 invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of the embodiments of the present invention, 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, a detachable connection, or 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 invention can be understood according to specific circumstances.

[0044] 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.

[0045] 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 embodiment of the present invention. 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.

[0046] According to the catalyst assembly 100 of the first embodiment of the present invention, please refer to Figure 1 The catalyst assembly 100 includes: an electrode 110, including a first electrode sheet 111 and a second electrode sheet 114 arranged at intervals; a first catalyst block 120, arranged between the first electrode sheet 111 and the second electrode sheet 114, and the first catalyst block 120 is provided with a first ventilation hole 121; an electrode tip 112 is provided on the side of the first electrode sheet 111 facing the second electrode sheet 114, and the electrode tip 112 is penetrated through the first ventilation hole 121.

[0047] According to the catalyst assembly 100 of the embodiment of the present invention, the electrode tip 112 penetrates the first ventilation hole 121 of the first catalyst block 120, and a discharge area is formed on one side of the first catalyst block 120 and the second electrode sheet 114. A tip discharge effect is formed between the electrode tip 112 and the second electrode sheet 114, and active substances such as plasma, ozone, and negative ions are ionized to generate air. Active substances such as plasma, ozone, and negative ions can kill bacteria, and the first catalyst block 120 can adsorb and decompose 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 electrode tip 112 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 avoid ozone diffusion and affect the normal use of users.

[0048] Based on the principle of high-pressure plasma synergistic catalysis, the active substances generated by the ionization of the electrode tip 112 can purify odors in the air and can also sterilize and disinfect. The catalyst assembly 100 only needs to use electrodes 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.

[0049] The electric field strength near the tip of the electrode tip 112 is higher than the electric field strength at other places of the electrode tip 112. By using the principle that the electric field strength is concentrated near the tip, the tip is directed toward the second electrode sheet 114, and one electrode tip 112 at least partially extends into a first ventilation hole 121, and the active substance generated by ionization is located on the side close to the second electrode sheet 114. The wind can flow through the second electrode sheet 114, the first catalyst block 120 and the first electrode sheet 111 in sequence, and the active substance can fully flow through the first ventilation hole 121. The generated ozone can be absorbed by the catalyst in the first catalyst block 120, and the generated plasma and negative ions leave the first ventilation hole 121 along the wind to the external space for sterilization and disinfection. Therefore, the electrode tip 112 is arranged in the first ventilation hole 121, which can not only avoid ozone exceeding the standard (space ozone concentration <50ppb), but also effectively carry out sterilization and disinfection.

[0050] 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.

[0051] It should be noted that the active substances produced by ionized air have a good bactericidal effect. Among them, the plasma produced by ionized air is a high-temperature, high-energy ionized gas with strong oxidizing and bactericidal ability. It can release a large number of free radicals and electrons to destroy the bacterial cell walls and cell membranes, thereby killing the bacteria. Ozone produced by ionized air is a highly oxidizing gas that can further destroy the bacterial cell walls and cell membranes and inhibit the growth and reproduction of bacteria. The negative ions produced by ionized air are negatively charged air particles that can adsorb and neutralize harmful particles such as bacteria and viruses in the air and make them inactive.

[0052] Active substances such as plasma, ozone, and negative ions can be adsorbed by the first catalyst block 120. Among them, ozone and the odor molecules adsorbed by the first catalyst block 120 produce an oxidation reaction, 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 the above-mentioned sulfides and ammonia, and ozone can also oxidize other odor molecules. Therefore, the active substances produced by ionized air can effectively reduce the concentration of odor substances and reduce the intensity of odors, thereby improving air quality.

[0053] 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 114 may be reversed. For example, the electrode surface may be affected by contamination, corrosion or accumulation, affecting its performance and effect. By reversing the polarity, the electrochemical reaction on the electrode surface can be changed, thereby removing pollutants, corrosion products or repairing the electrode surface.

[0054] The first catalyst block 120 has the functions of absorbing and decomposing odor and removing ozone. In one embodiment, the distance between the first catalyst block 120 and the second electrode sheet 114 is smaller than the distance between the electrode tip 112 and the second electrode sheet 114 .

[0055] 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.

[0056] 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.

[0057] According to an embodiment of the present invention, please refer to Figure 2 , the aperture of the first ventilation hole 121 close to the electrode tip 112 is smaller than the aperture of the first ventilation hole 121 far from the electrode tip 112. It is understandable that the active substances formed by the ionization of air by the electrode tip 112 will gather in large quantities near the electrode tip 112. The smaller the aperture, the greater the number of first ventilation holes 121 with the same opening area, that is, the density of the first ventilation holes 121 is higher. In this way, the pore wall area of ​​the first ventilation holes 121 is large, and the active substances and odor molecules are more easily adsorbed onto the pore walls, which has a better adsorption effect on ozone. Therefore, the reasonable distribution of the density of the first ventilation holes 121 can allow the first catalyst block 120 to effectively adsorb excess ozone and avoid excessive ozone (spatial ozone concentration <50ppb).

[0058] The aperture of the first ventilation hole 121 close to the electrode tip 112 is smaller than the set aperture, and the aperture of the first ventilation hole 121 away from the electrode tip 112 is larger than the set aperture, wherein the set aperture is the maximum aperture that does not affect air flow.

[0059] It should be noted that when air passes through the first ventilation hole 121, different resistances will be generated according to the size of the aperture. When the aperture of the first ventilation hole 121 is larger than the set aperture, the size of the resistance can be ignored. When the aperture of the first ventilation hole 121 is smaller than the set aperture, the resistance will affect the smooth passage of the wind. When the wind enters the first catalyst block 120, the wind will preferentially choose the first ventilation hole 121 away from the electrode tip 112, and will not choose the first ventilation hole 121 close to the electrode tip 112, so that the first ventilation hole 121 close to the electrode tip 112 can fully react chemically with the active substance to ensure that the ozone does not exceed the standard.

[0060] According to an embodiment of the present invention, please refer to Figure 1 The first electrode sheet 111 includes a first electrode plate 113, an electrode tip 112 is connected to the first electrode plate 113, and the second electrode sheet 114 includes a second electrode plate 115, and the first electrode plate 113 and the second electrode plate 115 are parallel. It can be understood that when the parallel first electrode plate 113 and the second electrode plate 115 are both conductive, a high-voltage electric field can also be formed, and the air entering the high-voltage electric field will be ionized to generate active substances. The high-voltage electric field and the electrode tip 112 can both ionize the air to generate active substances, which can effectively improve the efficiency of purifying odor molecules.

[0061] According to an embodiment of the present invention, please refer to Figure 1, the first electrode sheet 111 includes two electrode tips 112, one electrode tip 112 is connected to the first end of the first electrode plate 113, and the other electrode tip 112 is connected to the second end of the first electrode plate 113. At the same time, the aperture of the first ventilation hole 121 close to the electrode tip 112 is smaller than the aperture of the first ventilation hole 121 far away from the electrode tip 112, 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 first ventilation holes 121 with smaller apertures and dense distribution have a good catalytic effect on the generated ozone, and the first ventilation holes 121 with larger apertures have smooth air ducts and high air flow efficiency. On the other hand, the two electrode tips 112 are respectively located at both ends of the first electrode plate 113, 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 ducts.

[0062] Taking the ice maker of a refrigerator as an example of the use environment, the catalyst assembly 100 can be placed on the air duct of the ice maker or the catalyst assembly 100 can be placed at the position of the air outlet. The air blown into the ice making room is processed by the wind speed of the ice maker air duct and the air outlet to ensure that the wind entering the ice making room has no odor, thereby solving the problem of ice cube hygiene and odor. Of course, placing the catalyst assembly 100 at the air outlet of the ice machine here is only used as an example, and the present invention is not limited by the example given here. The catalyst assembly 100 can be used in any environment with air flow to sterilize, disinfect and remove odors. For example, the catalyst assembly 100 can be used in environments such as dishwashers, air conditioners and cooking machines.

[0063] The power-on logic of the catalyst assembly 100 can be associated with the fan of the air duct (not shown in the figure). When the fan is turned on, the catalyst assembly 100 ionizes the air. On the one hand, it can save energy consumption, and on the other hand, it can effectively prevent ozone from entering the external environment in reverse and causing the ozone concentration to exceed the standard.

[0064] It should be noted that the present invention does not limit the number of electrode tips 112 , and the electrode tips 112 may be one or more. In one embodiment, the first electrode sheet 111 includes a plurality of electrode tips 112 , and the electrode tips are evenly distributed at the ends of the first electrode plate 113 .

[0065] According to one embodiment of the present invention, the catalyst assembly 100 further includes a second catalyst block 130 (for details, please refer to Figure 3The second catalyst block 130 is connected to the side of the second electrode sheet 114 facing away from the first catalyst block 120, and the second catalyst block 130 is provided with a second ventilation hole 131. At this time, the second electrode sheet 114 is a negative electrode sheet. By providing the second catalyst block 130 on the side of the second electrode sheet 114 facing away from the first catalyst block 120, it is ensured that even when the fan is not started, the ozone generated by the catalytic assembly diffuses in the reverse direction and can be catalytically decomposed by the second catalyst block 130, and the ozone does not exceed the standard when the active substance leaves the catalyst assembly 100.

[0066] According to one embodiment of the present invention, the aperture of the second ventilation hole 131 is smaller than the aperture of the first ventilation hole 121. The aperture of the second ventilation hole 131 is smaller than the aperture of the first ventilation hole 121. According to the continuity equation and Bernoulli's principle in fluid dynamics, when the fluid passes through a shrinking pipe, its pressure will increase. Therefore, when the wind passes through a second ventilation hole 131, the gas is squeezed to form a high-pressure area. When the wind passes through the first ventilation hole 121, the gas is squeezed less, forming a low-pressure area. Since the gas will automatically flow from the high-pressure area to the low-pressure area, the wind will spontaneously flow from the second ventilation hole 131 to the first ventilation hole 121. Even when the fan of the air duct is not started, the active substance generated by the ionization of the electrode tip 112 will preferentially diffuse freely to the first catalyst block 120.

[0067] According to one embodiment of the present invention, the first catalyst block 120 includes a carrier, and a catalyst coating is disposed on the surface of the carrier. The carrier can be made of a material that is easy to process, such as ceramic or metal plate, so as to facilitate processing of first ventilation holes 121 with different aperture sizes and densities.

[0068] Of course, the first catalyst block 120 may also be composed entirely of catalyst.

[0069] According to the second embodiment of the present invention, the deodorizer 10 is shown in FIG. Figure 3 The deodorizer 10 includes: the above-mentioned catalyst assembly 100; a shell 140, a receiving chamber 144 is formed inside the shell 140, and the catalyst assembly 100 is arranged in the receiving chamber 144; a power supply 150, which is arranged in the receiving chamber 144 and is suitable for supplying power to the first electrode plate 113 and the second electrode plate 115.

[0070] To generate a high voltage plate tip electric field, the first electrode sheet 111 and the second electrode sheet 114 need to be powered by a power supply 150. As an example, the operating voltage range of the high voltage power supply 150 used in this embodiment is 2-5KV and the frequency is 5-25KHZ.

[0071] It should be noted that, since the deodorizer 10 includes the above-mentioned catalyst assembly 100, the contents of the first embodiment of the present invention can be used to explain the deodorizer 10 of the second embodiment, and therefore the same contents will not be repeated.

[0072] According to one embodiment of the present invention, the accommodating chamber 144 includes a first accommodating chamber 145 and a second accommodating chamber 146; the first accommodating chamber 145 is suitable for placing the catalyst assembly 100, and the second accommodating chamber 146 is suitable for placing the power supply 150; the shell 140 includes a first shell 141, a second shell 142 and a third shell 143, and the first shell 141 and the second shell 142 are buckled together to form the first accommodating chamber 145; the third shell 143 is connected to the buckled first shell 141 and the second shell 142 to form the second accommodating chamber 146.

[0073] Thus, the first shell 141 and the second shell 142 are interlocked to form an independent air duct structure, and the power supply 150 is arranged in the second accommodating chamber 146 without affecting the air flow of the first accommodating chamber 145, ensuring that the air can pass through the catalyst assembly 100 with the maximum air volume, thereby ensuring the catalytic performance and effect. In addition, the catalyst assembly 100 and the power supply 150 are respectively located in different accommodating chambers to prevent the power supply 150 from being affected by the electric field, which affects the performance and life of the power supply 150. It can also prevent the active substances generated by ionization from affecting the normal use of the power supply 150. Therefore, placing the electrolyte solution of the power supply 150 and the gas generated by the discharge separately in different chambers can effectively avoid mutual interference and influence between the two.

[0074] It is understandable that the first housing 141 and the second housing 142 can be arranged along the distribution direction of the catalyst assembly 100, and the first housing 141 and the second housing 142 can be buckled left and right. It can also be arranged perpendicular to the distribution direction of the catalyst assembly 100, and the first housing 141 and the second housing 142 can be buckled front and back.

[0075] The third housing 143 can be adaptively adjusted according to the actual position of the household appliance. For example, the third housing 143 can be snapped on the bottom of the first housing 141 and the second housing 142, which can increase the weight of the bottom of the disinfection and deodorization device 10, thereby lowering the center of gravity of the device, increasing the stability of the device, reducing the risk of tipping or tilting, and making better use of space to achieve a more compact design. The third housing 143 can also be snapped on the top of the first housing 141 and the second housing 142, which can promote the dispersion and dissipation of heat, and can use natural convection to improve the heat dissipation effect, thereby avoiding heat accumulation inside the device and causing overheating. Of course, the power supply 150 can also be set on the side of the first housing 141 and the second housing 142, so that the user can more conveniently access the power supply 150 interface, plug and unplug the power supply 150 line, and perform the power supply 150 switch operation. This improves the ease of use and user experience of the device.

[0076] According to one embodiment of the present invention, a fan (not shown) is further included, and the wind path of the fan passes through the second electrode sheet 114, the first catalyst block 120 and the first electrode sheet 111 in sequence. The fan can be an axial flow fan or a centrifugal fan. The fan can drive the airflow to flow through the second electrode sheet 114, the first catalyst block 120 and the first electrode sheet 111. Under the action of the high-voltage electric field and the catalyst, the odor molecules in the airflow undergo a chemical reaction to form harmless and odorless gas, and can also release a large amount of plasma and negative ions to the external space through the electrode tip 112 for sterilization and disinfection.

[0077] According to the refrigerator provided by the third embodiment of the present invention (the refrigerator and the storage compartment are not shown in the figure), the refrigerator includes a body and the above-mentioned catalyst assembly 100, and a storage compartment is formed inside the body; the catalyst assembly 100 is connected to the body for sterilizing and purifying the storage compartment. It can be understood that the storage compartment of the refrigerator may include a refrigeration compartment and a freezing compartment, and the refrigeration compartment can be used to keep food fresh, for example, it can be used to store fresh fruits and vegetables. The freezing compartment can be used to freeze food and store meat. In a refrigerator provided with an ice maker, the storage compartment also includes an ice making compartment, which is suitable for storing ice cubes. Since the freezing compartment and the refrigeration compartment in the storage compartment are interconnected, the gas in the storage compartment can diffuse freely, and the gas includes odor molecules, which can cause the food stored in different positions to have a cross-flavor. Therefore, by setting the catalyst assembly 100, the odor molecules can be purified, the impact of cross-flavor can be reduced, and the user experience can be improved.

[0078] According to one embodiment of the present invention, the accommodating chamber includes an ice-making chamber, which is suitable for storing ice cubes. The main body is provided with an air duct, which is connected to the ice-making chamber. The catalyst assembly 100 is arranged in the air duct, or the catalyst assembly 100 is arranged at the air outlet of the air duct. The catalyst assembly 100 can process the air blown into the ice-making chamber by means of the wind speed of the air duct of the main body or the air outlet of the air duct to ensure that the air entering the ice-making chamber has no odor, thereby solving the hygiene and odor problems of ice cubes.

[0079] Finally, it should be noted that the above embodiments 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, it should be understood by those skilled in the art 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 included in the scope of the claims of the present invention.

Claims

1. A catalyst assembly (100), characterized in that: include: An electrode (110) comprising a first electrode sheet (111) and a second electrode sheet (114) which are arranged at an interval; A first catalyst block (120) is disposed between the first electrode sheet (111) and the second electrode sheet (114), and the first catalyst block (120) is provided with a first ventilation hole (121); An electrode tip (112) is provided on a side of the first electrode sheet (111) facing the second electrode sheet (114), and the electrode tip (112) penetrates the first ventilation hole (121).

2. The catalyst assembly (100) according to claim 1, characterized in that: The first catalyst block (120) is provided with a plurality of the first ventilation holes (121), and the aperture of the first ventilation holes (121) close to the electrode tip (112) is smaller than the aperture of the first ventilation holes (121) far from the electrode tip (112).

3. The catalyst assembly (100) according to claim 2, characterized in that: The first electrode sheet (111) comprises a first electrode plate (113), the electrode tip (112) is connected to the first electrode plate (113), the second electrode sheet (114) comprises a second electrode plate (115), and the first electrode plate (113) and the second electrode plate (115) are parallel.

4. The catalyst assembly (100) according to claim 3, characterized in that: The first electrode sheet (111) comprises two electrode tips (112), one of the electrode tips (112) is connected to a first end of the first electrode plate (113), and the other of the electrode tips (112) is connected to a second end of the first electrode plate (113).

5. The catalyst assembly (100) according to any one of claims 1 to 4, characterized in that: The invention also comprises a second catalyst block (130), wherein the second catalyst block (130) is connected to a side of the second electrode sheet (114) facing away from the first catalyst block (120), the second catalyst block (130) is provided with a second ventilation hole (131), and the second electrode sheet (114) is a negative electrode sheet.

6. The catalyst assembly (100) according to claim 5, characterized in that: The aperture of the second ventilation hole (131) is smaller than the aperture of the first ventilation hole (121).

7. The catalyst assembly (100) according to any one of claims 1 to 4, characterized in that: The first catalyst block (120) comprises a carrier, and a catalyst coating is provided on the surface of the carrier.

8. A deodorizing and purifying device (10), characterized in that: include: The catalyst assembly (100) according to any one of claims 1 to 7; A shell (140), wherein a receiving chamber (144) is formed inside the shell (140), and the catalyst assembly (100) is disposed in the receiving chamber (144); A power source (150) is disposed in the accommodating cavity (144) and is suitable for supplying power to the first electrode plate (113) and the second electrode plate (115).

9. The deodorizing and purifying device (10) according to claim 8, characterized in that: The accommodating chamber (144) includes a first accommodating chamber (145) and a second accommodating chamber (146); the first accommodating chamber (145) is suitable for placing the catalyst assembly (100), and the second accommodating chamber (146) is suitable for placing the power supply (150); the shell (140) includes a first outer shell (141), a second outer shell (142) and a third outer shell (143); the first outer shell (141) and the second outer shell (142) are buckled together to form the first accommodating chamber (145); the third outer shell (143) is connected to the buckled first outer shell (141) and the second outer shell (142) to form the second accommodating chamber (146).

10. The deodorizing and purifying device (10) according to claim 8, characterized in that: It also includes a fan, wherein the wind path of the fan passes through the second electrode sheet (114), the first catalyst block (120) and the first electrode sheet (111) in sequence.

11. A refrigerator, characterized in that: include: A main body, with a receiving chamber formed inside; The catalyst assembly (100) according to any one of claims 1 to 7, wherein the catalyst assembly (100) is connected to the body and is used to sterilize and purify the containing chamber.

12. The refrigerator according to claim 11, characterized in that: The accommodating chamber comprises an ice-making chamber, the ice-making chamber is suitable for storing ice cubes, the body is provided with an air duct, the air duct is connected to the ice-making chamber, the catalyst assembly (100) is arranged in the air duct, or the catalyst assembly (100) is arranged at the air outlet of the air duct.

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