Catalyst assembly and refrigerator

Abstract

The utility model relates to the technical field of household appliances, and provides a catalyst assembly and a refrigerator. The catalyst assembly comprises a first electrode plate, a second electrode plate and a magnetic part which are oppositely arranged at an interval, the first electrode plate is suitable for forming a plasma electric field with the second electrode plate, the second electrode plate is provided with a discharge part facing the first electrode plate, and the discharge part is suitable for performing ionization discharge on the first electrode plate; the magnetic piece is arranged between the first electrode plate and the second electrode plate and provides a magnetic field intersecting with the plasma electric field. According to the catalyst assembly, the plasma electric field is formed by arranging the first electrode plate and the second electrode plate, ionization discharge is conducted through the discharge part, and neutral gas molecules in air can be rapidly ionized into charged particles. The charged particles move in an accelerated manner under the action of an electric field and a magnetic field to form ionic wind, so that the collision frequency with odor molecules in air is effectively increased, and the air purification efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic appliance technical field especially relates to catalyst assembly and refrigerator. BACKGROUND

[0002] The refrigerator cold storage compartment will produce a large amount of smell in the process of use due to long-term sealing, when these smells are mixed, it will produce an odor, which is difficult for users to accept, so more and more deodorization technologies are used in refrigerators. The deodorization technologies currently used in the refrigerator industry mainly include physical adsorption type, photocatalyst catalysis type and plasma purification type, however, the existing deodorization technology has the defects of incomplete decomposition of odor molecules, easy quenching of effective substances, difficulty in reducing ozone concentration and poor purification effect. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the related art. To this end, the present application proposes a catalyst assembly to solve the defect of poor purification effect of the existing catalyst assembly.

[0004] The present application also proposes a refrigerator.

[0005] According to the catalyst assembly of the first aspect of the present application, the catalyst assembly comprises:

[0006] The first electrode sheet and the second electrode sheet are arranged in parallel and opposite to each other, the first electrode sheet is adapted to form a plasma electric field with the second electrode sheet, and the second electrode sheet is provided with a discharge component facing the first electrode sheet, and the discharge component is adapted to ionize and discharge to the first electrode sheet.

[0007] The magnetic member is arranged between the first electrode sheet and the second electrode sheet, and provides a magnetic field intersecting with the plasma electric field.

[0008] According to the catalyst assembly of the present application, when air enters the catalyst assembly, the discharge component ionizes and discharges to the first electrode sheet, ionizes the neutral gas molecules in the region where the plasma electric field is located into first charged particles, the first charged particles accelerate under the action of the electric field, and the first charged particles collide with the neutral gas molecules in the region where the plasma electric field is located during the movement, so that the neutral gas molecules become second charged particles. The first charged particles and the second charged particles accelerate in a directional manner, forming an ion wind; the magnetic member is used to generate a magnetic field, so that the first charged particles move in a deflected path under the action of the Lorentz force, increasing the collision frequency of the first charged particles with the neutral gas molecules in the region where the electric field is located. The increase in collision frequency increases the ion concentration, thereby increasing the wind speed of the ion wind. The increase in wind speed of the ion wind can increase the possibility of collision with odor molecules, and can also avoid the increase in ozone concentration, effectively improving the air purification efficiency.

[0009] According to one embodiment of the present application, the magnetic component includes a plastic packaging layer and a magnetic core, the plastic packaging layer wraps the magnetic core inside, and the plastic packaging layer is used for insulation.

[0010] According to one embodiment of the present application, the magnetic core is a permanent magnet or an electromagnet, and / or the number of the magnetic parts is multiple, and the magnetic parts are arranged between the first electrode sheet and the second electrode sheet at intervals.

[0011] According to one embodiment of the present application, a ventilation hole is provided on the first electrode sheet corresponding to the discharge component, and an orthographic projection of the discharge component on the first electrode sheet is located in the middle of the ventilation hole.

[0012] According to one embodiment of the present application, the second electrode sheet is provided with multiple groups of discharge component rows, each group of the discharge component rows is provided with 2 to 10 discharge components arranged side by side and at intervals, the distance between the discharge components is 2 mm-15 mm, and / or the distance between each group of the discharge component rows and the adjacent discharge component rows is greater than 2 mm-10 mm, and / or the height of the discharge component is 2 mm-10 mm, and / or the distance between the end of the discharge component and the plane where the first electrode sheet is located is 5 mm-20 mm.

[0013] According to one embodiment of the present application, the catalyst assembly includes a power supply, the positive voltage of the power supply is connected to the first electrode plate, the negative voltage of the power supply is connected to the second electrode plate, and the voltage value of the negative voltage is greater than the voltage value of the positive voltage.

[0014] According to one embodiment of the present application, the power supply is a pulsed DC power supply, and the voltage difference between the positive voltage and the negative voltage is between 3KV and 15KV.

[0015] According to one embodiment of the present application, the catalyst assembly includes an insulating shell, an installation space is provided inside the insulating shell, the first electrode sheet, the second electrode sheet and the magnetic member are all provided in the installation space, and the magnetic member is connected to the side wall of the insulating shell.

[0016] According to one embodiment of the present application, an electrode fixing slot is provided in the insulating shell, and the first electrode sheet and the second electrode sheet are installed in the electrode fixing slot.

[0017] A refrigerator according to an embodiment of the second aspect of the present application includes: the above-mentioned catalyst assembly.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the accompanying drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0020] Figure 1 is one of the structural schematic diagrams of the catalyst assembly provided by the embodiments of the present application.

[0021] Figure 2 is the second structural schematic diagram of the catalyst assembly provided by the embodiments of the present application.

[0022] Figure 3 is the structural schematic diagram of the magnetic member provided by the embodiments of the present application.

[0023] Figure 4 is the structural schematic diagram of the second electrode sheet provided by the embodiments of the present application.

[0024] Figure 5 is the third structural schematic diagram of the catalyst assembly provided by the embodiments of the present application.

[0025] Reference signs:

[0026] 100, first electrode sheet; 110, ventilation hole;

[0027] 200, second electrode sheet; 210, discharge component;

[0028] 300, magnetic member; 310, magnetic core; 320, plastic sealing layer;

[0029] 400, power supply;

[0030] 500, insulating shell; 501, mounting space; 510, electrode fixing clamping groove. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be further described in detail below in combination with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0032] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, wherein the fixedly connected can include the way of integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be 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 "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" 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 present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0036] The following will be described in conjunction with Figures 1 to 5 The catalyst assembly of the present application is described.

[0037] According to the catalyst assembly proposed in the embodiment of this application, please refer to Figure 1 and Figure 2 The catalyst assembly includes a first electrode sheet 100, a second electrode sheet 200 and a magnetic member 300 that are spaced apart and arranged opposite to each other. The first electrode sheet 100 is suitable for forming a plasma electric field with the second electrode sheet 200. The second electrode sheet 200 is provided with a discharge component 210 facing the first electrode sheet 100, and the discharge component 210 is suitable for ionizing and discharging toward the first electrode sheet 100; the magnetic member 300 is arranged between the first electrode sheet 100 and the second electrode sheet 200 to provide a magnetic field that intersects with the plasma electric field.

[0038] The catalyst assembly according to the embodiment of the present application forms a plasma electric field by providing the first electrode sheet 100 and the second electrode sheet 200, and uses the discharge component 210 to generate ionization discharge, which can quickly ionize neutral gas molecules in the air into charged particles. These charged particles are accelerated by the electric field, forming an ion wind, which effectively increases the number of collisions with odor molecules in the air, thereby significantly improving air purification efficiency.

[0039] The magnetic field generated by the magnetic element 300 causes the charged particles to deflect their motion paths under the influence of the Lorentz force. This deflection not only increases the time the charged particles spend within the electric field, but also significantly increases the frequency of collisions between the charged particles and neutral gas molecules, thereby increasing the ion concentration and the speed of the ion wind, further enhancing the air purification effect.

[0040] By increasing the speed of the ion wind, the generated ozone molecules can be more effectively dispersed to a larger spatial area, reducing the risk of excessive local ozone concentration, thereby ensuring the purification effect while avoiding possible negative impacts on human health.

[0041] When air enters the catalyst assembly, the discharge component 210 ionizes and discharges toward the first electrode sheet 100, ionizing the neutral gas molecules in the area where the plasma electric field is located into first charged particles. The first charged particles are accelerated under the action of the electric field. During the movement, the first charged particles collide with the neutral gas molecules in the area where the plasma electric field is located, causing the neutral gas molecules to become second charged particles. The first charged particles and the second charged particles are accelerated in a direction to form an ion wind; the magnetic component 300 is used to generate a magnetic field, so that the movement path of the first charged particles is deflected under the action of the Lorentz force, increasing the number of collisions between the first charged particles and the neutral gas molecules in the area where the electric field is located. The increase in the number of collisions increases the ion concentration, thereby increasing the wind speed of the ion wind. The increase in the wind speed of the ion wind can increase the possibility of collision with odor molecules, while also avoiding the increase in ozone concentration, effectively improving the air purification efficiency.

[0042] It should be noted that the magnetic member 300 provides a magnetic field that intersects with the plasma electric field, wherein the intersection can be perpendicular to each other or at an angle, and there is no specific limitation here.

[0043] It should be noted that the magnetic member 300 is arranged between the first electrode sheet 100 and the second electrode sheet 200, wherein the magnetic member 300 can be arranged between the first electrode sheet 100 and the second electrode sheet 200, and can also be arranged beside the plasma electric field formed by the first electrode sheet 100 and the second electrode sheet 200. The projection of the magnetic member 300 in the plasma electric field is located between the first electrode sheet 100 and the second electrode sheet 200, that is, the magnetic member 300 is located between the plane where the first electrode sheet 100 is located and the plane where the second electrode sheet 200 is located.

[0044] It should be noted that through the action of the first electrode sheet 100 and the second electrode sheet 200, a high concentration of active particles will be generated in the plasma electric field, such as: ozone / high-energy electrons, negative ions, excited state particles and free radicals with strong oxidizing properties. These substances, such as highly active free radicals, can degrade odors and bacteria.

[0045] It should be noted that in the related art, if you want to achieve the same ion wind speed, you need to increase the voltage. However, increasing the voltage will easily lead to an increase in the concentration of the product ozone, resulting in a poor user experience. This application uses the magnetic part 300 to assist in accelerating the ion wind speed, which can reduce the corresponding ozone concentration, thereby achieving better air purification effect.

[0046] According to an embodiment of the present application, please refer to Figure 3 The magnetic component 300 includes a plastic packaging layer 320 and a magnetic core 310. The plastic packaging layer 320 wraps the magnetic core 310 inside, and the plastic packaging layer 320 is used for insulation.

[0047] It is understood that the magnetic core 310 is the core part of the magnetic component 300 and is responsible for generating a stable magnetic field, intersecting with the plasma electric field, and changing the motion trajectory of charged particles through the Lorentz force. The plastic layer 320 tightly wraps the magnetic core 310 inside, mainly serving the purpose of insulation and protection. On the one hand, the plastic layer 320 can prevent the magnetic core 310 from direct contact with external conductive components, avoiding safety hazards such as short circuits and electric shocks. On the other hand, it can also protect the magnetic core 310 from erosion by the external environment, such as moisture, dust, and chemicals, thereby extending the service life of the magnetic component 300.

[0048] The plastic layer 320 can be an insulating plastic, such as PP / ABS / PS. The main purpose of the plastic layer 320 is to act as an insulator, preventing the first electrode and the second electrode from discharging to the magnetic core 310, and ensuring that the magnetic component 300 only provides a magnetic field without affecting the discharge between the first electrode and the second electrode.

[0049] In one embodiment, the thickness of the plastic layer 320 is 1-5 mm.

[0050] According to one embodiment of the present application, the magnetic core 310 is a permanent magnet or an electromagnet.

[0051] It is understood that the permanent magnet has a long-lasting magnetism and can generate a stable magnetic field without the need for an external power supply 400. This allows the catalyst assembly to maintain a stable air purification efficiency during long-term operation without worrying about the magnetic field generation being affected by a failure of the power supply 400.

[0052] The magnetic core 310 may be a neodymium iron boron magnet, which is an intermetallic compound composed of rare earth element Nd, iron, and boron.

[0053] Electromagnets can adjust the strength and direction of the magnetic field by controlling the magnitude and direction of the current. This adjustability allows the catalyst assembly to optimize the magnetic field distribution and strength according to different operating conditions and requirements, further improving air purification efficiency. Furthermore, electromagnets offer great flexibility, allowing the magnetic field to be activated or deactivated based on the needs of different scenarios.

[0054] According to one embodiment of the present application, there are multiple magnetic members 300 , and the magnetic members 300 are arranged between the first electrode sheet 100 and the second electrode sheet 200 .

[0055] It is understood that by spacing the multiple magnetic elements 300, the magnetic field distribution within the entire electric field region can be made more uniform. The magnetic fields generated by each magnetic element 300 overlap, reducing fluctuations in magnetic field strength and blind spots, thereby improving the stability and consistency of the movement of charged particles within the electric field region. This uniform magnetic field distribution helps charged particles collide more effectively with neutral gas molecules, improving air purification efficiency.

[0056] The presence of multiple magnetic elements 300 increases the frequency and range of interactions between charged particles and the magnetic field. As charged particles traverse multiple magnetic fields, they are subject to multiple Lorentz forces, causing their trajectory to deflect multiple times, increasing the chance of collisions with neutral gas molecules. These multiple collisions not only increase ion concentration and ion wind speed, but also make the air purification process more complete and efficient.

[0057] According to an embodiment of the present application, please refer to Figure 1 and Figure 2 The first electrode sheet 100 is provided with a ventilation hole 110 corresponding to the discharge component 210 , and the projection of the discharge component 210 on the first electrode sheet 100 is located in the middle of the ventilation hole 110 .

[0058] It is understood that the ventilation holes 110 allow the purified air and active particles to flow out smoothly, while new air to be purified can enter the field for reaction. The continuous air flow not only ensures the activity of the high-pressure plasma field, but also improves the efficiency and speed of air purification.

[0059] The projection of the discharge component 210 on the first electrode sheet 100 is located in the middle of the ventilation hole 110, which can ensure that the charged particles generated by ionization can directly and efficiently contact the pollutants in the air entering through the ventilation hole 110. The charged particles generated by ionization can quickly react with the pollutants in the air passing through the ventilation hole 110, reducing the time that the charged particles roam aimlessly in the electric field, thereby improving the ionization efficiency and air purification effect.

[0060] According to an embodiment of the present application, please refer to Figure 4 The second electrode sheet 200 is provided with multiple groups of discharge component rows, each group of discharge component rows is provided with 2 to 10 discharge components 210 arranged side by side and at intervals, and the distance between the discharge components 210 is 2 mm-15 mm.

[0061] It is understood that the arrangement of multiple discharge component rows increases the coverage area of ​​the ionization region, thereby improving the overall purification efficiency. This design enables more air molecules to be ionized when passing through the ventilation holes 110, increasing the chance of reacting with pollutants.

[0062] In each discharge component row, 2 to 10 discharge components 210 are arranged side by side and at intervals. Such a layout helps to achieve uniform distribution of the ionization field, reduce the situation where local ionization is too strong or too weak, and improve the consistency of the purification effect.

[0063] The distance between the discharge components 210 is 2 mm to 15 mm. This distance is selected to ensure ionization efficiency while avoiding mutual interference or discharge instability caused by the discharge components 210 being too close.

[0064] According to an embodiment of the present application, please refer to Figure 4 The distance between each discharge component row and the adjacent discharge component row is greater than 2mm-10mm.

[0065] The distance between each discharge component row and adjacent discharge component rows is greater than 2mm-10mm, which optimizes the air flow path and ensures that air can pass smoothly through all discharge component rows for comprehensive purification. At the same time, the larger spacing also helps reduce the mutual influence between discharge component rows and improve the overall stability of the equipment.

[0066] According to an embodiment of the present application, please refer to Figure 4The height of the discharge component 210 is 2 mm to 10 mm, which can ensure that the discharge component 210 can generate sufficient ionization energy during operation, while not being too high to cause a complex or unstable structure.

[0067] According to an embodiment of the present application, please refer to Figure 4 The distance between the end of the discharge component 210 and the plane where the first electrode sheet 100 is located is 5 mm to 20 mm, which can ensure that the electric field generated by the discharge component 210 can fully cover the first electrode sheet 100 and the air area around it, while avoiding discharge instability or breakdown caused by being too close, which helps to improve the safety and stability of the device.

[0068] The discharge component 210 can be integrally formed on the second electrode sheet 200 by a stamping and bending process. For example, the discharge component 210 can be made into a triangular sawtooth shape. The discharge component 210 is formed by bending the triangle. Figure 4 The stamping and bending process enables automated production, greatly improving production efficiency. At the same time, one-piece molding reduces subsequent assembly and welding processes.

[0069] According to one embodiment of the present application, the catalyst assembly includes a power supply 400, the positive voltage of the power supply 400 is connected to the first electrode sheet 100, the negative voltage of the power supply 400 is connected to the second electrode sheet 200, and the voltage value of the negative voltage is greater than the voltage value of the positive voltage.

[0070] It can be understood that the voltage value of the negative voltage is greater than the voltage value of the positive voltage, which can generate a large number of negative ions. The negative ions can react with the generated ozone in the plasma electric field, thereby reducing the ozone concentration and making the ozone concentration of the purified air meet health requirements.

[0071] According to one embodiment of the present application, the power supply 400 is a pulsed DC power supply, and the voltage difference between the positive voltage and the negative voltage is between 3KV and 15KV.

[0072] The pulsed DC power supply can reach a very high peak value in a very short time, quickly forming a strong electric field between the electrodes (first electrode sheet 100 and second electrode sheet 200), promoting the ionization of air molecules. When the high voltage is turned on and the pulse is at its peak, the voltage difference is the largest, causing the air in the reaction area to be ionized rapidly.

[0073] In addition, the intermittent working mode of the pulsed DC power supply can reduce the continuous discharge phenomenon between the electrodes, thereby reducing the wear rate of the electrodes and extending their service life.

[0074] The voltage difference range of 3kV to 15kV is sufficient to generate a strong electric field, which fully ionizes the air molecules passing through the catalyst assembly. The charged particles generated by ionization can react with pollutants in the air, thereby achieving a purification effect.

[0075] According to one embodiment of the present application, the catalyst assembly includes an insulating shell 500, an installation space 501 is provided inside the insulating shell 500, the first electrode sheet 100, the second electrode sheet 200 and the magnetic member 300 are all provided in the installation space 501, and the magnetic member 300 is connected to the side wall of the insulating shell 500.

[0076] The insulating shell 500 provides a physical barrier for the catalyst assembly, protecting the internal electrode sheets and the power supply 400 from the external environment. The plasma electric field is located inside the insulating shell 500, ensuring the safety of the discharge process.

[0077] In addition, the insulating shell 500 provides a stable mounting platform for components such as the first electrode sheet 100, the second electrode sheet 200 and the magnetic member 300, ensuring that they maintain the correct position and relative relationship during operation, thereby making the discharge process more stable.

[0078] The magnetic element 300 is attached to the sidewall of the insulating housing 500. In other words, it is located on one side of the plasma electric field. This arrangement facilitates optimizing the ionization and chemical reaction processes by leveraging the magnetic field's influence on the plasma. Charged particles can be more effectively accelerated by the Lorentz force exerted by the magnetic element 300, and the interaction between the magnetic field and the plasma enhances the removal of specific contaminants.

[0079] According to an embodiment of the present application, please refer to Figure 1 and Figure 5 An electrode fixing slot 510 is provided in the insulating shell 500 , and the first electrode sheet 100 and the second electrode sheet 200 are installed in the electrode fixing slot 510 .

[0080] The electrode fixing slots 510 ensure that the first electrode sheet 100 and the second electrode sheet 200 can be accurately installed at designated positions within the insulating housing 500 , and help maintain the correct distance and relative positions between the electrode sheets.

[0081] In one embodiment, the power supply 400 is placed in a power supply 400 installation slot of the insulating housing and sealed by glue injection.

[0082] According to the refrigerator of the embodiment of the present application, the catalyst assembly mentioned above is included. It is understood that the refrigerator integrated with the catalyst assembly can further improve the cleanliness and health of the internal environment of the refrigerator.

[0083] It's important to note that a dedicated air purification area can be set up inside the refrigerator (for example, the refrigerator's air duct) and the catalyst assembly installed within this area. With the catalyst assembly installed, the refrigerator not only performs basic functions such as refrigeration and freezing, but also possesses air purification capabilities. Under the action of high-voltage pulse voltage, the electrodes in the catalyst assembly generate ionization discharges, producing active substances such as ozone and negative ions. These active substances can effectively remove odors, bacteria, viruses, and other harmful substances from the air inside the refrigerator, keeping the air inside the refrigerator fresh and healthy.

[0084] Finally, it should be noted that the above embodiments are intended only to illustrate the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application and are intended to be encompassed by the claims of the present application.

Claims

1. A catalyst assembly, characterized in that: include: A first electrode sheet (100) and a second electrode sheet (200) are spaced apart and arranged opposite to each other, the first electrode sheet (100) being suitable for forming a plasma electric field with the second electrode sheet (200), the second electrode sheet (200) being provided with a discharge component (210) facing the first electrode sheet (100), the discharge component (210) being suitable for ionizing and discharging toward the first electrode sheet (100); The magnetic member (300) is provided between the first electrode sheet (100) and the second electrode sheet (200), and provides a magnetic field that intersects with the plasma electric field.

2. The catalyst assembly according to claim 1, characterized in that The magnetic component (300) comprises a plastic encapsulation layer (320) and a magnetic core (310), wherein the plastic encapsulation layer (320) wraps the magnetic core (310) inside, and the plastic encapsulation layer (320) is used for insulation.

3. The catalyst assembly according to claim 2, characterized in that The magnetic core (310) is a permanent magnet or an electromagnet, and / or the number of the magnetic members (300) is plural, and the magnetic members (300) are arranged at intervals between the first electrode sheet (100) and the second electrode sheet (200).

4. The catalyst assembly according to claim 1, characterized in that The first electrode sheet (100) is provided with a ventilation hole (110) corresponding to the discharge component (210), and the orthographic projection of the discharge component (210) on the first electrode sheet (100) is located in the middle of the ventilation hole (110).

5. The catalyst assembly according to claim 4, characterized in that The second electrode sheet (200) is provided with a plurality of groups of discharge component rows, each group of the discharge component rows is provided with 2 to 10 discharge components (210) arranged side by side and at intervals, the distance between the discharge components (210) is 2 mm to 15 mm, and / or the distance between each group of the discharge component rows and the adjacent discharge component rows is greater than 2 mm to 10 mm, and / or the height of the discharge component (210) is 2 mm to 10 mm, and / or the distance between the end of the discharge component (210) and the plane where the first electrode sheet (100) is located is 5 mm to 20 mm.

6. The catalyst assembly according to any one of claims 1 to 5, characterized in that The catalyst assembly comprises a power supply (400), a positive voltage of the power supply (400) is connected to the first electrode sheet (100), a negative voltage of the power supply (400) is connected to the second electrode sheet (200), and a voltage value of the negative voltage is greater than a voltage value of the positive voltage.

7. The catalyst assembly according to claim 6, characterized in that The power supply (400) is a pulsed DC power supply, and the voltage difference between the positive voltage and the negative voltage is between 3KV and 15KV.

8. The catalyst assembly according to any one of claims 1 to 5, characterized in that The catalyst assembly comprises an insulating shell (500), an installation space (501) is provided inside the insulating shell (500), the first electrode sheet (100), the second electrode sheet (200) and the magnetic member (300) are all provided in the installation space (501), and the magnetic member (300) is connected to the side wall of the insulating shell (500).

9. The catalyst assembly according to claim 8, characterized in that An electrode fixing slot (510) is provided in the insulating housing (500), and the first electrode sheet (100) and the second electrode sheet (200) are mounted in the electrode fixing slot (510).

10. A refrigerator, characterized in that: include: The catalyst assembly according to any one of claims 1 to 9.

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