Purification device and refrigerator

Abstract

This invention belongs to the field of electrical technology, specifically relating to a purification device and a refrigerator. The purification device includes: two opposing connecting plates; a driving member connected to at least one of the connecting plates to change the distance between the two connecting plates; and two electrode assemblies disposed opposite to the two connecting plates, each electrode assembly having its two ends connected to the two connecting plates respectively. The two electrode assemblies are retractable, extending or retracting to change their discharge area when the distance between the two connecting plates changes. The purification device and refrigerator of this invention can meet the needs of different deodorization and sterilization scenarios.

Description

Technical Field

[0001] This application belongs to the field of electrical technology, specifically relating to a purification device and a refrigerator. Background Technology

[0002] Refrigerators are household appliances used to store food. Currently, domestic refrigerators mainly rely on low temperatures to preserve food. However, low temperatures can only reduce the growth rate of microorganisms and cannot solve the problems of refrigerator odors and bacterial infections caused by microorganisms during food storage.

[0003] To address this issue, refrigerators typically include electrically powered ion generators (such as ozone generators or negative ion generators) to kill bacteria and remove odors from the interior. However, the application scenarios for ion generators in current technology are limited. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a purification device and a refrigerator, aiming to at least partially solve the technical problem of the limited application scenarios of ion generators.

[0005] The technical solution of this invention is as follows:

[0006] A purification device is characterized by comprising: two opposing connecting plates; a driving member connected to at least one of the two connecting plates to change the distance between the two connecting plates; two electrode assemblies disposed opposite to the two connecting plates, each electrode assembly having its two ends connected to the two connecting plates respectively; the two electrode assemblies being retractable, and extending or retracting to change the discharge area of ​​the two electrode assemblies when the distance between the two connecting plates changes.

[0007] Because the two connecting plates are arranged opposite each other, the driving component is connected to at least one of the two connecting plates to change the distance between the two connecting plates. The two electrode assemblies are arranged opposite each other between the two connecting plates, with each electrode assembly having its two ends connected to the two connecting plates respectively. The two electrode assemblies are retractable. When the distance between the two connecting plates changes, the two electrode assemblies extend and retract to change the discharge area of ​​the two electrode assemblies. Therefore, when the two electrode assemblies are energized, a high-voltage ionization discharge field is formed. During the movement of electrons, they collide with the air between the two electrode assemblies, causing neutral molecules to ionize and generate a large number of high-energy electrons, positive and negative ions, excited-state particles, and free radicals with strong oxidizing properties, thus purifying the air. According to the odor state inside the refrigerator, the driving component drives one of the two connecting plates to move, thereby changing the distance between the two connecting plates. This connecting plate drives the two electrode assemblies to extend and retract, thereby changing the discharge area of ​​the two electrode assemblies, and thus changing the discharge power and the purification intensity of the air, which can meet the needs of different deodorization and sterilization scenarios.

[0008] In some embodiments, each of the electrode assemblies includes a plurality of retractable electrodes spaced apart.

[0009] By extending and retracting the electrodes, the discharge area of ​​the two electrode components can be changed, thereby altering the discharge power and the air purification intensity, which can meet the needs of different deodorization and sterilization scenarios.

[0010] In some embodiments, each of the retractable electrodes includes: a plurality of sub-electrodes in a sleeve shape, wherein the plurality of sub-electrodes are overlapped when the retractable electrode is in a retracted state; the first and last sub-electrodes of the plurality of sub-electrodes are respectively connected to two connecting plates.

[0011] When the electrode is in a contracted state, multiple sub-electrodes overlap and nest, which can change the discharge area of ​​the two electrode components, thereby changing the discharge power and the purification intensity of the air, and can meet the needs of different deodorization and sterilization scenarios.

[0012] In some embodiments, the purification device further includes a catalytic component disposed between the two electrode components and connected at both ends to the two connecting plates respectively. The catalytic component is retractable, and when the distance between the two connecting plates changes, the catalytic component extends or retracts to change the catalytic area, thereby increasing the wind resistance between the two electrode components, increasing the air residence time, ensuring the reaction time, and thus ensuring the purification effect.

[0013] In some embodiments, the catalytic assembly includes: a plurality of catalytic elements in a sleeve shape, wherein the catalytic assembly is in a contracted state, and the plurality of catalytic elements are overlapped; the first and last catalytic elements of the plurality of catalytic elements are respectively connected to two connecting plates.

[0014] When multiple catalysts are in a contracted state, they overlap and are nested together, which can change the catalytic area and the purification intensity of the air, thus meeting the needs of different deodorization and sterilization scenarios.

[0015] In some embodiments, the catalyst includes a substrate and a catalyst coated on the substrate.

[0016] The catalyst adsorbs odors in the air and decomposes them to remove the odors.

[0017] In some embodiments, the two ends of the drive member are respectively connected to the two connecting plates, and the drive member is disposed within the catalytic assembly.

[0018] The distance between the two connecting plates is changed by the driving component, and the driving component is protected by the catalytic component to prevent the driving component from being affected by the high-voltage ionization discharge field formed between the two electrode components, thus ensuring the safety of the driving component.

[0019] In some implementations, the drive element includes a cylinder.

[0020] When the discharge power needs to be changed, the cylinder is activated. The cylinder's actuating end drives one of the two connecting plates to move, thereby changing the distance between the two connecting plates. This connecting plate causes the two electrode assemblies to extend and retract, thereby changing the discharge area of ​​the two electrode assemblies.

[0021] Based on the same inventive concept, the present invention also provides a refrigerator, including the aforementioned purification device.

[0022] In some embodiments, the refrigerator includes: a cabinet; a controller connected to the drive unit of the purification device; and an odor sensor disposed within the cabinet and connected to the controller.

[0023] The odor sensor acquires the odor concentration signal inside the chamber and sends it to the controller. The controller acquires the odor concentration inside the chamber and compares it with a set threshold. Based on the comparison result, the controller sends a control signal to the drive unit to extend or retract. The drive unit moves one of the two connecting plates to change the distance between the two connecting plates. This connecting plate causes the two electrode assemblies to extend and retract, thereby changing the discharge area of ​​the two electrode assemblies, and thus changing the discharge power and the purification intensity of the air. This can meet the needs of different odor removal and sterilization scenarios.

[0024] In some embodiments, the refrigerator further includes a communication module for connecting the controller and the drive unit, the communication module being connected to the control panel, and / or the communication module being connected to a handheld terminal.

[0025] The communication module connects to the control panel. The communication module sends the odor concentration obtained by the controller to the control panel for display. The user operates the control panel based on the results displayed on the control panel, and then sends the control signal to the drive component through the communication module to control the drive component to extend or retract.

[0026] In some embodiments, the refrigerator further includes: a cooling duct; the purification device is disposed within the cooling duct.

[0027] The fan inside the cooling duct is turned on, drawing air from the duct into the space between the two electrode components. The two electrode components are energized, forming a high-voltage ionization discharge field. During their movement, electrons collide with the air between the two electrode components, ionizing neutral molecules and generating a large number of high-energy electrons, positive and negative ions, excited-state particles, and free radicals with strong oxidizing properties, thus purifying the air. At the same time, it can save space and facilitate the layout.

[0028] The beneficial effects of the present invention include at least the following:

[0029] Because the two connecting plates are arranged opposite each other, the driving component is connected to at least one of the connecting plates to change the distance between the two connecting plates. The two electrode assemblies are arranged opposite each other between the two connecting plates, with each electrode assembly having its two ends connected to the two connecting plates respectively. The two electrode assemblies are retractable. When the distance between the two connecting plates changes, the two electrode assemblies extend and retract to change the discharge area of ​​the two electrode assemblies. Therefore, when the two electrode assemblies are energized, a high-voltage ionization discharge field is formed. During the movement of electrons, they collide with the air between the two electrode assemblies, causing neutral molecules to ionize and generate a large number of high-energy electrons, positive and negative ions, excited-state particles, and free radicals with strong oxidizing properties, thus purifying the air. According to the odor state inside the refrigerator, the driving component drives one of the two connecting plates to move, thereby changing the distance between the two connecting plates. This connecting plate drives the two electrode assemblies to extend and retract, thereby changing the discharge area of ​​the two electrode assemblies, and thus changing the discharge power and the purification intensity of the air, which can meet the needs of different deodorization and sterilization scenarios. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the purification device in its first state according to this embodiment;

[0032] Figure 2 for Figure 1 A schematic diagram of the purification device in its second state;

[0033] Figure 3 for Figure 1 A schematic diagram of the purification device in its second state;

[0034] Figure 4 for Figure 1 A schematic diagram of the electrode structure of the purification device;

[0035] Figure 5 for Figure 1 A schematic diagram of the catalyst element in the purification device.

[0036] In the attached image:

[0037] Connecting plate 10;

[0038] Electrode assembly 20, retractable electrode 201, sub-electrode 2011, first limiting member 2012;

[0039] Drive component 30;

[0040] Catalytic assembly 40, catalyst element 401, second limiting element 402, substrate 4011;

[0041] Telescopic sleeve 50. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0043] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0046] This application is described below with reference to the accompanying drawings and specific embodiments:

[0047] The purification device and refrigerator provided in this embodiment are intended to at least partially solve the technical problem of the limited application scenarios of ion generators.

[0048] Figure 1 This is a schematic diagram of the purification device in its first state according to this embodiment. Figure 2 for Figure 1 A schematic diagram of the purification device in its second state. Figure 3 for Figure 1 A schematic diagram of the purification device in its second state. (Combined with...) Figure 1 , Figure 2 and Figure 3 The purification device of this embodiment includes: a driving member 30, two oppositely arranged connecting plates 10, and two electrode assemblies 20. The driving member 30 is connected to at least one of the two connecting plates 10 to change the distance between the two connecting plates 10. The two electrode assemblies 20 are oppositely arranged between the two connecting plates 10, and both ends of each electrode assembly 20 are connected to the two connecting plates 10 respectively. The two electrode assemblies 20 are retractable, and when the distance between the two connecting plates 10 changes, the two electrode assemblies 20 extend and retract to change the discharge area of ​​the two electrode assemblies 20.

[0049] In some embodiments, since the two connecting plates 10 are arranged opposite to each other, the driving member 30 is connected to at least one of the two connecting plates 10 to change the distance between the two connecting plates 10. Two electrode assemblies 20 are arranged opposite to each other between the two connecting plates 10, with each electrode assembly 20 having its two ends connected to the two connecting plates 10 respectively. The two electrode assemblies 20 are retractable; when the distance between the two connecting plates 10 changes, the two electrode assemblies 20 extend and retract to change their discharge area. Therefore, when the two electrode assemblies 20 are energized, a high-voltage ionization discharge field is formed, and electrons... During the movement, the air between the two electrode components 20 collides, causing neutral molecules to ionize and generate a large number of high-energy electrons, positive and negative ions, excited-state particles, and free radicals with strong oxidizing properties, thus purifying the air. Depending on the odor state inside the refrigerator, the drive component 30 drives one of the two connecting plates 10 to change the distance between the two connecting plates 10. This connecting plate causes the two electrode components 20 to extend and retract, thereby changing the discharge area of ​​the two electrode components 20, and thus changing the discharge power and the intensity of air purification, which can meet the needs of different deodorization and sterilization scenarios.

[0050] In some embodiments, the two connecting plates 10 are a top plate and a bottom plate, respectively. The bottom plate can serve as a support plate to support the two electrode assemblies 20 and the fixed end of the driving member 30. The top plate is connected to the moving end of the driving member 30. The moving end of the driving member 30 drives the top plate to move, thereby changing the distance between the top plate and the bottom plate. At the same time, the top plate transmits force to the two electrode assemblies 20, causing the two electrode assemblies 20 to move, thereby changing the discharge area of ​​the two electrode assemblies 20.

[0051] In some embodiments, the actuating end of the drive member 30 can be connected to the top plate, while the fixed end of the drive member 30 can be placed on the bottom plate without being connected to the bottom plate. The bottom plate can also support the fixed end of the drive member 30. The actuating end of the drive member 30 drives the top plate to move, thereby changing the distance between the top plate and the bottom plate. At the same time, the top plate transmits force to the two electrode assemblies 20, driving the two electrode assemblies 20 to move, thereby changing the discharge area of ​​the two electrode assemblies 20.

[0052] In some embodiments, the drive element 30 includes a cylinder. Both ends of the cylinder are connected to two connecting plates 10 respectively to change the distance between the two connecting plates 10. That is, when the discharge power needs to be changed, the cylinder is activated, and the actuating end of the cylinder drives one of the two connecting plates 10 to move, thereby changing the distance between the two connecting plates 10. This connecting plate 10 causes the two electrode assemblies 20 to extend and retract, thereby changing the discharge area of ​​the two electrode assemblies 20. Of course, the drive element 30 can also be a hydraulic cylinder, a motor, or a ball screw. Since the cylinder has a fast response speed and can quickly change the distance between the two connecting plates 10, the drive element 30 is preferably a cylinder.

[0053] In some embodiments, when the two electrode components 20 are working, both electrode components 20 are connected to high voltage, forming a high-voltage ionization discharge field. By expanding or contracting the two electrode components 20, the discharge area can be increased or decreased, thereby changing the discharge power and the air purification intensity, which can meet the needs of different deodorization and sterilization scenarios. The high voltage can be one of a high-frequency pulse power supply, an AC high-voltage power supply, or a DC high-voltage power supply, and the voltage difference between the two electrode components 20 is 4000V.

[0054] Combination Figure 1 , Figure 2 and Figure 3 In some embodiments, each electrode assembly 20 includes multiple spaced-apart retractable electrodes 201. The extension and retraction of the electrodes 201 alters the discharge area of ​​the two electrode assemblies 20, thereby changing the discharge power and the air purification intensity to meet the needs of different odor-removing and sterilization scenarios. Of course, each electrode assembly 20 may include one retractable electrode 201, or the discharge area of ​​two electrode assemblies 20 may be used to change the discharge power and the air purification intensity, also meeting the needs of different odor-removing and sterilization scenarios. However, from the perspective of ensuring discharge effect and operational stability, the number of electrodes 201 is preferably multiple. And from the perspective of cost reduction, the number of electrodes 201 is preferably three.

[0055] Combination Figure 1 , Figure 2 and Figure 3 In some embodiments, each retractable electrode 201 includes multiple sub-electrodes 2011. The multiple sub-electrodes 2011 are sleeve-shaped, meaning that every two adjacent sub-electrodes 2011 are nested together. Specifically, when the retractable electrode 201 is in a retracted state, the multiple sub-electrodes 2011 overlap and nest, thereby changing the discharge area of ​​the two electrode assemblies 20, and consequently changing the discharge power and the air purification intensity, which can meet the needs of different odor removal and sterilization scenarios.

[0056] Combination Figure 1 , Figure 2 and Figure 3 In some embodiments, the first and last sub-electrodes of the plurality of sub-electrodes 2011 are respectively connected to two connecting plates 10. That is, when the driving member 30 drives one of the two connecting plates 10 to move, the other connecting plate drives the first or last sub-electrode to move. The first or last sub-electrode drives the other sub-electrodes to overlap or extend, thereby changing the discharge area of ​​the two electrode assemblies 20, thereby changing the discharge power and the purification intensity of the air, which can meet the needs of different deodorization and sterilization scenarios.

[0057] Figure 4 for Figure 1 A schematic diagram of the electrode structure in the purification device. (Combined with...) Figure 4 In some embodiments, the diameter of the first sub-electrode in every two adjacent sub-electrodes 2011 is larger than the diameter of the second sub-electrode in every two adjacent sub-electrodes 2011. The first sub-electrode has a first through hole and a first cavity, and the second sub-electrode passes through the first through hole and is disposed in the first cavity. When the discharge area of ​​the two electrode assemblies 20 is changed, the second sub-electrode passes through the first through hole and operates in the first cavity, thereby changing the overlap area of ​​the first and second sub-electrodes, thus changing the discharge area of ​​the two electrode assemblies 20, thereby changing the discharge power and the purification intensity of the air, which can meet the needs of different deodorization and sterilization scenarios.

[0058] Combination Figure 4 In some embodiments, the second sub-electrode is provided with a first limiting member 2012 at the end of the first cavity. The diameter of the first limiting member 2012 is smaller than the diameter of the first cavity to ensure that the second sub-electrode can move smoothly within the first cavity. The diameter of the first limiting member 2012 is larger than the diameter of the first through hole to prevent the second sub-electrode from detaching from the first cavity when multiple sub-electrodes 2011 are in their extreme extended state, thus ensuring the integrity of the electrode 201.

[0059] In some embodiments, the sub-electrode 2011 is made of metal, such as stainless steel, aluminum alloy, or copper. To reduce costs, the sub-electrode 2011 is preferably made of stainless steel.

[0060] Combination Figure 1 , Figure 2 and Figure 3In some embodiments, to further ensure the purification effect, the purification device further includes a catalytic component 40. The catalytic component 40 is disposed between the two electrode components 20 to increase the wind resistance between the two electrode components 20, increase the air residence time, and ensure the reaction time, thereby ensuring the purification effect. Of course, the catalytic component 40 can also be disposed outside the two electrode components 20, but this would prevent the two electrode components 20 from reacting with the air on the catalytic component 40, reducing the purification effect. Therefore, preferably, the catalytic component 40 is disposed between the two electrode components 20.

[0061] Combination Figure 1 , Figure 2 and Figure 3 In some embodiments, the two ends of the catalytic component 40 are respectively connected to two connecting plates 10. The catalytic component 40 is retractable. When the distance between the two connecting plates 10 changes, the catalytic component 40 extends or retracts to change the catalytic area, that is, to make the catalytic area equal to the discharge area, so as to avoid the catalytic component 40 affecting the operation of the electrode assembly 20. When it is necessary to change the discharge power, the actuating end of the driving member 30 drives one of the two connecting plates 10 to move, and the other connecting plate transmits force to the catalytic component 40, causing the catalytic component 40 to move, thereby changing the catalytic area.

[0062] In some embodiments, when air reaches the catalytic component 40, the catalytic component 40 adsorbs and decomposes the odor in the air, removing it. Simultaneously, electrons generated by the two electrode components 20 collide with the air between them during their movement, ionizing neutral molecules and generating a large number of high-energy electrons, positive and negative ions, excited-state particles, and highly oxidizing free radicals. These active substances adsorb onto the active centers of the catalyst in the catalytic component 40, rapidly degrading odor gas molecules and some volatile organic compounds passing through this area.

[0063] Combination Figure 1 , Figure 2 and Figure 3 In some embodiments, the catalytic assembly 40 includes a plurality of catalyst elements 401. The plurality of catalyst elements 401 are sleeve-shaped, meaning that every two adjacent catalyst elements 401 are nested together. When the catalytic assembly 40 is in a contracted state, the plurality of catalyst elements 401 overlap. That is, when the plurality of catalyst elements 401 are in a contracted state, their overlapping arrangement can change the catalytic area and thus the air purification intensity, meeting the needs of different odor removal and sterilization scenarios.

[0064] Combination Figure 1 , Figure 2 and Figure 3In some embodiments, the first and last catalyst elements among the plurality of catalyst elements 401 are respectively connected to two connecting plates 10. That is, when the driving member 30 drives one of the two connecting plates 10 to move, the other connecting plate drives the first or last catalyst element to move. The first or last catalyst element drives the other catalyst elements to overlap or extend, thereby changing the catalytic area and the purification intensity of the air, which can meet the needs of different deodorization and sterilization scenarios.

[0065] In some embodiments, the number of multiple catalyst elements 401 can be 5, and the length of the first catalyst element or the last catalyst element is 8-10cm. The length of the catalyst elements is shortened by 2cm in sequence from the first catalyst element to the last catalyst element or from the last catalyst element to the first catalyst element, so as to facilitate the contraction or extension of the catalyst assembly 40.

[0066] Figure 5 for Figure 1 A schematic diagram of the catalyst element in the purification unit. (Combined with...) Figure 5 In some embodiments, the size of the first catalyst in every two adjacent catalyst elements 401 is larger than the size of the second catalyst in every two adjacent catalyst elements. The first catalyst element has a second through hole and a second cavity, and the second catalyst element passes through the second through hole and is disposed in the second cavity. When the catalytic area is changed, the second catalyst element passes through the first through hole and operates in the first cavity, thereby changing the overlap area of ​​the first and second catalyst elements to change the catalytic area and thus the purification intensity of the air, which can meet the needs of different deodorization and sterilization scenarios.

[0067] Combination Figure 5 In some embodiments, a second limiting member 402 is provided at the end of the second cavity for the second catalyst. The diameter of the second limiting member 402 is smaller than the diameter of the second cavity to ensure that the second catalyst can move smoothly within the second cavity. The diameter of the second limiting member 402 is larger than the diameter of the second through hole to prevent the second catalyst from detaching from the first cavity when multiple catalysts 401 are in their ultimate extended state, thus ensuring the integrity of the catalyst assembly 40.

[0068] Combination Figure 1 , Figure 2 and Figure 3 In some embodiments, the catalyst 401 includes a substrate 4011 and a catalyst coated on the substrate 4011. The catalyst adsorbs and decomposes odors from the air, thus removing them. The substrate 4011 can be one of ceramics, metal oxides, or fibers, and the catalyst can be one of titanium dioxide, metal oxides, or metal sulfides.

[0069] Combination Figure 1 , Figure 2 and Figure 3 In some embodiments, the two ends of the drive component 30 are respectively connected to two connecting plates 10. The drive component 30 is disposed in the catalytic component 40. The distance between the two connecting plates 10 is changed by the drive component 30, and the catalytic component 40 protects the drive component 30 to avoid the drive component 30 being affected by the high-voltage ionization discharge field formed between the two electrode components 20, thus ensuring the safety of the drive component 30.

[0070] Combination Figure 1 , Figure 2 and Figure 3 In some embodiments, a telescopic sleeve 50 is provided between the driving component 30 and the inner wall of the catalytic component 40. The telescopic sleeve 50 further protects the driving component 30, preventing it from being affected by the high-voltage ionization discharge field formed between the two electrode components 20, thus ensuring the safety of the driving component 30. The telescopic sleeve 50 can be made of stainless steel or aluminum alloy.

[0071] In some embodiments, different expansion and contraction states of the catalytic component 40 correspond to different reaction catalytic areas, and different expansion and contraction states of the two electrode components 20 correspond to different ionization areas. The larger the catalytic and ionization areas, the better the odor removal effect. When a large amount of odorous food is placed in the refrigerator or when there is a high concentration of odor, the catalytic component 40 and the two electrode components 20 are in their maximum expansion state to achieve a powerful purification mode. After working continuously for a period of time, when the refrigerator odor is low, the catalytic component 40 and the two electrode components 20 expand and contract. When the refrigerator has no odor or is operating normally, the catalytic component 40 and the two electrode components 20 are in their maximum expansion and contraction state to maintain a low odor concentration.

[0072] Based on the same inventive concept, this application also proposes a refrigerator that uses the purification device. The specific structure of the purification device is as described in the above embodiments. Since the purification device uses all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0073] In some embodiments, the refrigerator includes: a cabinet, a controller, and an odor sensor. The controller is connected to a drive unit 30 of the purification device and is used to send control signals to the drive unit 30. The odor sensor is disposed inside the cabinet and connected to the controller. The odor sensor is used to detect the odor concentration inside the cabinet and send the odor concentration signal to the controller.

[0074] In some embodiments, the odor sensor acquires the odor concentration signal inside the chamber and sends the odor concentration signal to the controller. The controller acquires the odor concentration inside the chamber and compares it with a set threshold, obtains the comparison result, and sends a control signal to the drive unit 30 according to the comparison result, controlling the drive unit 30 to extend or retract. The drive unit 30 drives one of the two connecting plates 10 to move, thereby changing the distance between the two connecting plates 10. The connecting plate drives the two electrode assemblies 20 to extend and retract, thereby changing the discharge area of ​​the two electrode assemblies 20, thereby changing the discharge power and changing the purification intensity of the air, which can meet the needs of different odor removal and sterilization scenarios.

[0075] In some embodiments, the refrigerator further includes a communication module for connecting the controller and the drive unit 30. The controller sends control signals to the drive unit 30 via the communication module to control the extension or retraction of the drive unit 30.

[0076] In some embodiments, the communication module is connected to the control panel. The communication module sends the odor concentration obtained by the controller to the control panel for display. The user operates on the control panel based on the results displayed on the control panel, and then sends control signals to the drive unit 30 through the communication module to control the drive unit 30 to extend or retract.

[0077] In some embodiments, the communication module is connected to a handheld terminal. The communication module sends the odor concentration acquired by the controller to the handheld terminal for display. Based on the display, the user operates the handheld terminal and sends control signals to the drive unit 30 via the communication module, controlling the drive unit 30 to extend or retract. The handheld terminal can be a remote control or a mobile phone.

[0078] In some embodiments, the refrigerator further includes a refrigeration duct. A purification device is located within the refrigeration duct. When the fan inside the refrigeration duct is activated, it draws air from the refrigeration duct between two electrode components 20. The two electrode components 20 are energized, forming a high-voltage ionization discharge field. During their movement, electrons collide with the air between the two electrode components 20, ionizing neutral molecules and generating a large number of high-energy electrons, positive and negative ions, excited-state particles, and highly oxidizing free radicals, thus purifying the air. Simultaneously, this process saves space and facilitates installation.

[0079] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0080] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0081] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0083] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0084] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A purification device, characterized by include: Two connecting plates positioned opposite each other; A drive element is connected to at least one of the two connecting plates to change the distance between the two connecting plates; Two electrode assemblies are disposed opposite to each other between the two connecting plates. Each electrode assembly is connected to the two connecting plates at both ends. The two electrode assemblies are retractable. When the distance between the two connecting plates changes, the two electrode assemblies extend or retract to change the discharge area of ​​the two electrode assemblies. When the two electrode assemblies are working, both electrode assemblies are connected to high voltage, forming a high voltage ionization discharge field.

2. The purification device of claim 1, wherein: Each of the electrode assemblies includes a plurality of retractable electrodes spaced apart.

3. The purification device of claim 2, wherein, Each of the retractable electrodes includes: Multiple sub-electrodes, in a sleeve-like shape, are overlapped and nested when the retractable electrode is in a retracted state. The first and last sub-electrode of the plurality of sub-electrodes are respectively connected to the two connecting plates.

4. The purification device according to any one of claims 1-2, characterized in that, The purification device further includes a catalytic component disposed between the two electrode components, with both ends connected to the two connecting plates respectively. The catalytic component is retractable, and when the distance between the two connecting plates changes, the catalytic component extends or retracts to change the catalytic area.

5. The purification device according to claim 4, characterized in that, The catalytic component includes: Multiple catalyst elements, in a sleeve shape, are stacked and nested together in the catalytic assembly in a contracted state. The first and last catalysts of the plurality of catalysts are respectively connected to the two connecting plates.

6. The purification device according to claim 5, characterized in that, The catalyst includes a substrate and a catalyst coated on the substrate.

7. The purification device according to claim 4, characterized in that: The two ends of the drive component are respectively connected to the two connecting plates, and the drive component is disposed inside the catalytic assembly.

8. The purification device according to any one of claims 1-2, characterized in that: The drive component includes a cylinder.

9. A refrigerator, characterized in that, Includes the purification device as described in any one of claims 1-8.

10. The refrigerator according to claim 9, characterized in that, The refrigerator includes: Box; The controller is connected to the drive unit of the purification device; An odor sensor is located inside the enclosure and is connected to the controller.

11. The refrigerator according to claim 10, characterized in that, The refrigerator further includes: a communication module for connecting the controller and the drive unit, the communication module being connected to the control panel, and / or, the communication module being connected to a handheld terminal.

12. The refrigerator according to claim 9, characterized in that, The refrigerator also includes a refrigeration duct; the purification device is disposed within the refrigeration duct.

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