Purification and dust collection device and air purifier

Abstract

The utility model provides a purification and dust collection device and an air purifier. The purification and dust collection device comprises a flexible electrostatic film and a support, and the flexible electrostatic film is used for generating an electrostatic field to adsorb tiny particles in air; the support comprises a shell with a containing space and a movable supporting piece movably connected with the shell, and the movable supporting piece is connected with the flexible electrostatic film. The movable supporting piece can drive the flexible electrostatic film to be switched between the containing state and the working state, in the containing state, the flexible electrostatic film is contained in the containing space, and in the working state, at least part of the flexible electrostatic film is unfolded out of the containing space and used for making contact with outside air. According to the technical scheme, the cleaning convenience of the tiny particulate matter is improved, and the risk of secondary air pollution is reduced.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a dust collection and purification device and an air purifier. Background Technology

[0002] An air purifier is a device that purifies and cleans the air. Air purifiers typically use the principle of electrostatic adsorption to remove pollutants from the air. Existing dust collection devices generally include charged plates and dust collection plates, with multiple layers of charged plates and dust collection plates arranged alternately. Airflow passes between them to adsorb particulate matter. In order to maintain good performance, regular cleaning is required. However, the alternating charged plates and dust collection plates are difficult to clean thoroughly after being removed due to the narrow spacing between them. Utility Model Content

[0003] The main purpose of this application is to provide a dust collection device and an air purifier, which aims to reduce the cleaning difficulty of the dust collection device and reduce the probability of secondary pollution.

[0004] To achieve the above objectives, this application proposes a dust collection and purification device, which includes a flexible electrostatic membrane and a support. The flexible electrostatic membrane is used to generate an electrostatic field to adsorb fine particulate matter in the air. The support includes a shell with a receiving space and a movable support member movably connected to the shell. The movable support member is connected to the flexible electrostatic membrane. The movable support member can drive the flexible electrostatic membrane to switch between a retracted state and an operating state. In the retracted state, the flexible electrostatic membrane is contained within the receiving space. In the operating state, at least a portion of the flexible electrostatic membrane is extended outside the receiving space and is used to contact the outside air.

[0005] In some embodiments, the housing includes a through slot for communicating with the outside world and the receiving space; the movable support includes a drive assembly and a cover, the cover covering the through slot and connected to the flexible electrostatic membrane; the drive assembly drives the cover to move away from the receiving space to switch the flexible electrostatic membrane from a stored state to an operating state.

[0006] In some embodiments, the drive assembly includes a first drive motor and a linkage structure. The linkage structure connects the first drive motor and the cover. Under the action of the first drive motor, the linkage structure drives the cover to move in a direction closer to or further away from the accommodating space.

[0007] In some embodiments, the linkage structure includes two rod sections hinged at one end, one rod section having its end opposite to the hinged end connected to a first drive motor, and the other rod section having its end opposite to the hinged end connected to a cover.

[0008] In some embodiments, the through slot is elongated, and there are two drive components, which are disposed at both ends of the through slot along its length.

[0009] In some embodiments, the purification and dust collection device further includes a membrane winding member, which is housed within a receiving space and connected to a flexible electrostatic membrane; when the flexible electrostatic membrane switches from a working state to a stored state, the membrane winding member winds the flexible electrostatic membrane.

[0010] In some embodiments, the outer shell includes a first shell and a second shell, which together enclose a receiving space; a movable support is disposed in the first shell, and a membrane winding member is disposed in the second shell.

[0011] In some embodiments, the film winding member includes a roller and a second drive motor, the second drive motor being connected to the roller to drive the roller to rotate, and the flexible electrostatic film being connected to the roller.

[0012] In some embodiments, the dust collection device further includes an ion generator for emitting ions into the air to charge tiny particulate matter in the environment; the polarity of the ions emitted by the ion generator is opposite to that of the flexible electrostatic membrane.

[0013] This application also provides an air purifier, which includes a dust collection and purification device as provided in any of the foregoing embodiments.

[0014] The technical solution of this application, by setting up a movable support component to drive the flexible electrostatic membrane to switch between a stored state and a working state, can utilize the housing space of the outer shell to store the flexible electrostatic membrane when the purification dust collection device is not in operation, reducing the probability of the flexible electrostatic membrane coming into contact with external fine particles in the non-working state, and reducing the risk of secondary pollution. At the same time, the flexible electrostatic membrane uses its own generated electrostatic field to polarize and adsorb fine particles that approach the flexible electrostatic membrane. When cleaning the flexible electrostatic membrane, it is only necessary to wipe the fine particles adsorbed on the surface of the flexible electrostatic membrane. The structure is simple and efficient, and can also reduce the risk of secondary pollution. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the dust collection and purification device provided in this application when it is in the storage state;

[0017] Figure 2 This is a schematic cross-sectional view of the flexible electrostatic membrane in the dust collection device provided in this application;

[0018] Figure 3 This is a three-dimensional structural diagram of the dust collection and purification device provided in this application when it is in operation;

[0019] Figure 4 yes Figure 3 A three-dimensional structural diagram of the purification and dust collection device from another angle;

[0020] Figure 5 This is an exploded three-dimensional structural diagram of the dust collection and purification device provided in this application;

[0021] Figure 6 yes Figure 3 The dust collection and purification device shown is a cross-sectional view along line AA.

[0022] Reference numerals: 100, purification and dust collection device; 10, flexible electrostatic membrane; 11, conductive film layer; 12, substrate film layer; 20, support; 21, outer shell; 211, through groove; 22, movable support component; 221, drive assembly; 2211, first drive motor; 2212, connecting rod structure; 222, cover; 30, membrane winding component; 31, roller; 32, second drive motor; 101, accommodating space; 102, first shell; 103, second shell.

[0023] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the embodiments of this application 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 this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] 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.

[0028] An air purifier is a device that purifies and cleans the air. Air purifiers typically use the principle of electrostatic adsorption to remove pollutants from the air.

[0029] The mainstream dust collection devices in related technologies generally include charged plates and dust collection plates. Multiple charged plates and dust collection plates are alternately arranged, and airflow passes between them to adsorb particulate matter. In order to maintain good performance, they need to be cleaned regularly. However, after the alternating charged plates and dust collection plates are removed, they are difficult to clean thoroughly due to the narrow spacing.

[0030] Based on this, the inventors designed a new dust collection and purification device, aiming to reduce the cleaning difficulty of non-consumable dust collection and purification devices and reduce the possibility of secondary pollution.

[0031] Please refer to the following: Figures 1 to 6 This application discloses a dust collection and purification device 100, which includes a flexible electrostatic membrane 10 and a support 20. The flexible electrostatic membrane 10 is used to generate an electrostatic field to adsorb fine particulate matter in the air. The support 20 includes a housing 21 with a receiving space 101 and a movable support member 22 movably connected to the housing 21. The movable support member 22 is connected to the flexible electrostatic membrane 10. The movable support member 22 can drive the flexible electrostatic membrane 10 to switch between a stored state and a working state. In the stored state, the flexible electrostatic membrane 10 is contained within the receiving space 101. In the working state, at least a portion of the flexible electrostatic membrane 10 is extended outside the receiving space 101 and is used to contact the outside air.

[0032] The function of the air purification and dust collection device 100 is to filter and collect tiny particulate matter in the air, such as dust, pollen, and bacteria, in order to clean the air.

[0033] The flexible electrostatic film 10 is used to generate an electrostatic field to adsorb tiny particles in the air. This means that after the flexible electrostatic film 10 is energized, it can form an electrostatic field on its surface, and then adsorb tiny particles in the air around the electrostatic field after polarization.

[0034] In these embodiments of this application, a flexible electrostatic membrane 10 is used to adsorb fine particulate matter in the air. Taking advantage of the high toughness of the flexible electrostatic membrane 10, the electrostatic adsorption surface of the flexible electrostatic membrane 10 is designed to be larger. This not only improves the adsorption effect on fine particulate matter, but also facilitates the cleaning of the purification dust collection device 100 after air purification. At this time, it is only necessary to remove the fine particulate matter adsorbed on the surface of the flexible electrostatic membrane 10. Moreover, the flexible electrostatic membrane 10 can be reused. This makes the purification dust collection device 100 provided by this application have the advantages of simple structure, easy cleaning, reduced probability of secondary pollution, and higher economy.

[0035] For example, in some embodiments of this application, the flexible electrostatic film 10 may include a conductive film layer 11 and a substrate film layer 12 that wraps the conductive film layer 11. The conductive film layer 11 is a functional component in the flexible electrostatic film 10, which is connected to an external power source during operation to generate an electrostatic field to polarize and adsorb small particles in the air. The substrate film layer 12 is an insulating component in the flexible electrostatic film 10, which is used to cover the conductive film layer 11 and make the conductive film layer 11 work in an insulating and sealed environment, thereby improving the service life of the conductive film layer 11.

[0036] In some embodiments of this application, the thickness of a single substrate film layer 12 may be not less than 2 mm; meanwhile, in the structure of the flexible electrostatic film 10, the conductive film layer 11 may be disposed in the middle part of the substrate film layer 12, and the distance between the edge of the conductive film layer 11 and the edge of the nearest substrate film layer 12 may be not less than 10 mm, so as to improve the insulation and sealing performance of the substrate film layer 12 to the conductive film layer 11.

[0037] The bracket 20 serves to provide support for the flexible electrostatic membrane 10. The bracket 20 includes a housing 21 with a receiving space 101 and a movable support member 22 movably connected to the housing 21.

[0038] The outer shell 21 is a structural component of the support 20, which defines the external shape of the support 20. In these embodiments of this application, the outer shell 21 may be, but is not limited to, a cuboid or a cube.

[0039] The housing 21 has a receiving space 101, meaning that at least a portion of the housing 21 is a hollow structure for accommodating at least a portion of the flexible electrostatic film 10 and the movable support 22 within the receiving space 101, thereby providing protection for the flexible electrostatic film 10 and the movable support 22.

[0040] The movable support 22 is movably connected to the outer shell 21, which means that at least a part of the structure of the movable support 22 is movably connected to the outer shell 21, thereby causing a change in the relative positional relationship between the flexible electrostatic film 10 and the outer shell 21, so as to realize the switching of the flexible electrostatic film 10 between the storage state and the working state.

[0041] The movable support 22 is connected to the flexible electrostatic membrane 10. In a possible implementation, one end of the flexible electrostatic membrane 10 is connected to the part of the movable support 22 that is movably connected to the outer shell 21. In this way, the part of the movable support 22 that is movably connected to the outer shell 21 can drive the flexible electrostatic membrane 10 to move during the movement, thereby realizing the switching of the flexible electrostatic membrane 10 between the storage state and the working state.

[0042] In these embodiments of the present application, the flexible electrostatic film 10 can be housed in the housing space 101 in the storage state, so that the housing space 101 can provide protection for the flexible electrostatic film 10, reduce the contact between the flexible electrostatic film 10 and the air when it is not in the working state, reduce the possibility of fine particulate matter accumulating on the flexible electrostatic film 10, and further reduce the probability of secondary pollution.

[0043] When the flexible electrostatic membrane 10 switches to the working state along with the movable support 22, at least a portion of the flexible electrostatic membrane 10 unfolds to the outside and comes into contact with the outside air. At this time, the flexible electrostatic membrane 10 can form an electrostatic field after being energized and adsorb tiny particles in the air. After the purification dust collection device 100 has finished its work, the operator only needs to wipe away the tiny particles adsorbed on the surface of the flexible electrostatic membrane 10 to clean the flexible electrostatic membrane 10. This is simple, efficient and helps to reduce the risk of secondary air pollution.

[0044] The technical solution of this application, by setting up a movable support member 22 to drive the flexible electrostatic membrane 10 to switch between a storage state and a working state, can utilize the accommodating space 101 of the outer shell 21 to store the flexible electrostatic membrane 10 in the non-working state of the purification dust collection device 100, reducing the probability of the flexible electrostatic membrane 10 coming into contact with external microparticles in the non-working state and reducing the risk of secondary pollution; at the same time, the flexible electrostatic membrane 10 uses its own generated electrostatic field to polarize and adsorb microparticles that approach the flexible electrostatic membrane 10. When cleaning the flexible electrostatic membrane 10, it is only necessary to wipe the microparticles adsorbed on the surface of the flexible electrostatic membrane 10. The structure is simple and efficient, and can also reduce the risk of secondary pollution.

[0045] In some embodiments, the outer casing 21 includes a through slot 211 for communicating with the outside world and the receiving space 101; the movable support member 22 includes a drive assembly 221 and a cover 222, the cover 222 covers the through slot 211 and is connected to the flexible electrostatic film 10; the drive assembly 221 drives the cover 222 to move away from the receiving space 101, so as to drive the flexible electrostatic film 10 to switch from the storage state to the working state.

[0046] The outer casing 21 includes a through groove 211, which is used to connect the outside world with the receiving space 101. Specifically, the through groove 211 is a channel within the outer casing 21 that connects the receiving space 101 with the outside world. A possible implementation is that the portion of the outer casing 21 where the receiving space 101 is located has a through groove 211 extending along its thickness direction.

[0047] The movable support 22 includes a drive assembly 221 and a cover 222. The cover 222 covers the through groove 211 and is connected to the flexible electrostatic membrane 10. When the purification dust collection device 100 is not in operation, the cover 222 can cover and seal the through groove 211 to improve the sealing of the accommodating space 101 and further enhance the protective effect on the flexible electrostatic membrane 10. At the same time, the cover 222 is connected to the flexible electrostatic membrane 10. That is to say, in these embodiments of this application, the cover 222 is a component of the movable support 22 that is movably connected to the outer shell 21. At this time, the cover 222 is connected to the flexible electrostatic membrane 10. When the relative positional relationship between the cover 222 and the outer shell 21 changes under the driving action of the drive assembly 221, it can drive the flexible electrostatic membrane 10 to change its positional relationship accordingly, thereby driving the flexible electrostatic membrane 10 to switch between the storage state and the working state.

[0048] In these embodiments of the present application, the connection between the flexible electrostatic film 10 and the cover 222 may be implemented by embedding one end of the flexible electrostatic film 10 into the surface of the cover 222 near the receiving space 101 during the production stage of the flexible electrostatic film 10 and the cover 222; or, the cover 222 may be provided with a snap-fit ​​structure on the surface near the receiving space 101, and the flexible electrostatic film 10 may be snapped into the snap-fit ​​structure during the assembly stage of the flexible electrostatic film 10 and the cover 222.

[0049] The drive assembly 221 is used to drive the cover 222 to move away from the receiving space 101, so that the cover 222 exposes the aforementioned through groove 211, and drives at least a portion of the flexible electrostatic membrane 10 originally contained in the receiving space 101 to move through the through groove 211 to the outside and come into contact with the outside air. It can be understood that the drive assembly 221 can also drive the cover 222 to move closer to the receiving space 101, so that the flexible electrostatic membrane 10 is re-enclosed in the receiving space 101, and finally covers the through groove 211, thereby sealing the receiving space 101.

[0050] In these embodiments of the present application, the drive component 221 can be a linkage structure driven by a motor, which drives the linkage to rotate, thereby pushing the cover 222 to move; in some embodiments, the drive component 221 can also be a combination structure of a cylinder and a push rod, which directly pushes the cover 222 to move through the push rod.

[0051] In some embodiments, the drive assembly 221 includes a first drive motor 2211 and a linkage structure 2212. The linkage structure 2212 connects the first drive motor 2211 and the cover 222. Under the action of the first drive motor 2211, the linkage structure 2212 drives the cover 222 to move in a direction closer to or further away from the accommodating space 101.

[0052] The drive assembly 221 includes a first drive motor 2211 and a connecting rod structure 2212. The connecting rod structure 2212 connects the first drive motor 2211 and the cover 222. That is, in these embodiments of this application, the drive assembly 221 is the case where the motor drives the connecting rod structure.

[0053] The linkage structure 2212 connects the first drive motor 2211 and the cover 222, so as to use the linkage structure 2212 to transmit the mechanical energy generated by the first drive motor 2211 to the cover 222, thereby driving the cover 222 to move in the direction of approaching or moving away from the accommodating space 101, realizing the switching of the flexible electrostatic film 10 between the storage state and the working state.

[0054] In some embodiments, the linkage structure 2212 includes two rod sections (not labeled) hinged at one end, one rod section having its end away from the hinged end connected to the first drive motor 2211, and the other rod section having its end away from the hinged end connected to the cover 222.

[0055] In this way, the rotational motion of the first drive motor 2211 can be converted into the linear motion of the cover 222 by using the two hinged rods, which is beneficial to the further miniaturization design of the dust collection device 100.

[0056] When the flexible electrostatic membrane 10 switches from the working state to the storage state, the two hinged rods can rotate around the hinge point as an axis, and eventually form a storage state that is parallel or nearly parallel to each other, which is also conducive to the miniaturization design of the dust collection device 100.

[0057] In some embodiments, the through groove 211 is elongated, and there are two drive components 221, which are disposed at both ends of the through groove 211 along its length.

[0058] In these embodiments of this application, the through groove 211 can be elongated, and correspondingly, the cover 222 can be elongated with the same shape as the through groove 211. In this case, by setting the number of driving components 221 to two and placing them at both ends of the through groove 211 along its length, the cover 222 can be driven simultaneously by the two driving components 221. This allows the driving force to be applied more evenly to the cover 222, reducing the probability of the cover 222 shifting or bending due to uneven application of driving force, thus improving reliability.

[0059] In some embodiments, the purification and dust collection device 100 further includes a membrane winding member 30, which is housed in the receiving space 101 and connected to the flexible electrostatic membrane 10; when the flexible electrostatic membrane 10 switches from the working state to the storage state, the membrane winding member 30 winds the flexible electrostatic membrane 10.

[0060] The membrane winding component 30 is housed within the receiving space 101 and connected to the flexible electrostatic membrane 10. The function of the membrane winding component 30 is to organize the flexible electrostatic membrane 10 housed within the receiving space 101, so that the flexible electrostatic membrane 10 can occupy less receiving space 101 when it is in the stored state. This is conducive to the miniaturization of the purification dust collection device 100, and at the same time, it can also reduce the probability of the flexible electrostatic membrane 10 being broken or damaged during repeated use, thus improving its reliability.

[0061] When the flexible electrostatic film 10 switches from the working state to the storage state, the film winding member 30 can gradually wind the flexible electrostatic film 10 so that the structure of the flexible electrostatic film 10 within the accommodating space 101 is more compact.

[0062] For example, in some embodiments of this application, the membrane winding member 30 can be set as a torsion spring winding member. In this case, one end of the flexible electrostatic membrane 10 is fixed to the surface of the membrane winding member 30 and then connected to the cover 222. When the driving component 221 drives the cover 222 to move gradually away from the receiving space 101, the flexible electrostatic membrane 10 moves gradually out of the receiving space 101 under the drive of the cover 222. At the same time, the part of the flexible electrostatic membrane 10 connected to the membrane winding member 30 drives the membrane winding member 30 to rotate, so as to convert the mechanical energy of rotation into the elastic potential energy of the torsion spring. When the purification dust collection device 100 completes its work, when the driving component 221 drives the cover 222 to move gradually closer to the receiving space 101, the elastic potential energy of the torsion spring is gradually released with the movement of the cover 222 and converted into the mechanical energy of rotation to gradually wind the flexible electrostatic membrane 10.

[0063] Of course, in some embodiments, the film winding member 30 may also include a roller 31 and a second drive motor 32, the second drive motor 32 being connected to the roller 31 to drive the roller 31 to rotate, and the flexible electrostatic film 10 being connected to the roller 31.

[0064] In these embodiments of the present application, the winding of the flexible electrostatic film 10 can be actively controlled by the second drive motor 32. In this case, the second drive motor 32 and the aforementioned first drive motor 2211 can be controlled by the controller to unify their working logic.

[0065] At this time, when the flexible electrostatic film 10 switches from the storage state to the working state, the controller can control the first drive motor 2211 and the second drive motor 32 to work simultaneously, so that when the cover 222 drives the flexible electrostatic film 10 to move away from the receiving space 101, the roller 31 rotates synchronously to release the flexible electrostatic film 10. When the flexible electrostatic film 10 switches from the working state to the storage state, the controller can also control the first drive motor 2211 and the second drive motor 32 to reverse simultaneously, so that when the cover 222 moves towards the receiving space 101, the roller 31 synchronously winds the flexible electrostatic film 10, which improves the flexibility of the flexible electrostatic film 10 when switching between the storage state and the working state, and reduces the risk of the flexible electrostatic film 10 being broken or damaged when switching between the two states.

[0066] In some embodiments, the outer shell 21 includes a first shell 102 and a second shell 103, which together enclose a receiving space 101; a movable support member 22 is disposed on the first shell 102, and a membrane winding member 30 is disposed on the second shell 103.

[0067] The outer shell 21 includes a first shell 102 and a second shell 103. The first shell 102 and the second shell 103 together enclose and form an accommodating space 101, which means that the outer shell 21 is formed by two semi-enclosed structures of semi-shells (i.e., the first shell 102 and the second shell 103).

[0068] At this time, the first housing 102 and the second housing 103 can be detachably connected by means of snap-fit ​​connection, threaded connection or connector connection. With this detachable connection, when the dust collection device 100 malfunctions, the movable support 22 or the membrane winding part 30 in the accommodating space can be repaired or replaced by disassembly, which improves the maintenance efficiency of the dust collection device 100.

[0069] The movable support 22 is disposed in the first housing 102 and the membrane winding member 30 is disposed in the second housing 103. This allows the movable support 22 and the membrane winding member 30 to obtain relatively independent working spaces within the accommodating space 101, reducing the probability of mutual interference between the two and improving reliability.

[0070] In some embodiments, the purification dust collection device 100 further includes an ion generator (not shown) for emitting ions into the air to charge tiny particulate matter in the environment; the polarity of the ions emitted by the ion generator is opposite to that of the flexible electrostatic membrane 10.

[0071] In these embodiments of the present application, the ion generator is used to emit ions into the air, causing the tiny particles in the air to carry a charge opposite to that of the flexible electrostatic membrane 10. In this way, the charged tiny particles are more easily adsorbed by the flexible electrostatic membrane 10, thereby further improving the air purification efficiency of the dust collection device 100.

[0072] The ion generator can be connected to the surface of the housing 21 away from the receiving space 101 and is used to emit ions into the environment to charge the tiny particles in the environment. In a possible implementation, the ion generator is detachably connected to the housing 21 to facilitate maintenance or replacement of the ion generator. In some embodiments, the ion generator and the bracket 20 can also be designed as separate units, which are independent of each other and work together to purify the air in the environment.

[0073] The ion generator can release a large number of electrons into the air. After the electrons are captured by oxygen molecules in the air, they form negative ions and combine with tiny particles in the air. At this time, a flexible electrostatic film 10 can be set to carry a positive charge, making it easier for tiny particles in the air to adhere to the flexible electrostatic film 10.

[0074] This application also provides an air purifier, which includes a dust collection device 100 as provided in any of the foregoing embodiments.

[0075] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A dust collection and purification device, characterized in that, include: Flexible electrostatic membranes are used to generate an electrostatic field to adsorb tiny particles in the air. The bracket includes a housing with a receiving space and a movable support member movably connected to the housing, the movable support member being connected to the flexible electrostatic membrane; The movable support can switch the flexible electrostatic membrane between a retracted state and a working state. In the retracted state, the flexible electrostatic membrane is housed within the housing space. In the working state, at least a portion of the flexible electrostatic membrane is extended outside the housing space and is used to contact the outside air.

2. The dust collection and purification device as described in claim 1, characterized in that, The outer shell includes a through slot for communicating the outside with the receiving space; the movable support includes a drive assembly and a cover, the cover covering the through slot and connected to the flexible electrostatic membrane. The driving component drives the cover to move away from the receiving space, thereby switching the flexible electrostatic film from the storage state to the working state.

3. The dust collection and purification device as described in claim 2, characterized in that, The drive assembly includes a first drive motor and a linkage structure. The linkage structure connects the first drive motor and the cover. Under the action of the first drive motor, the linkage structure drives the cover to move in a direction closer to or further away from the accommodating space.

4. The dust collection and purification device as described in claim 3, characterized in that, The linkage structure includes two rod sections hinged at one end. The end of one rod section facing away from the hinged end is connected to the first drive motor, and the end of the other rod section facing away from the hinged end is connected to the cover.

5. The dust collection and purification device as described in claim 3, characterized in that, The through groove is elongated, and there are two drive components, which are located at both ends of the through groove along its length.

6. The dust collection and purification device according to any one of claims 1 to 5, characterized in that, The purification and dust collection device also includes a membrane winding component, which is housed in the receiving space and connected to the flexible electrostatic membrane. When the flexible electrostatic film switches from the working state to the storage state, the film winding member winds the flexible electrostatic film.

7. The dust collection and purification device as described in claim 6, characterized in that, The outer shell includes a first shell and a second shell, which together enclose the receiving space; The movable support is disposed in the first housing, and the membrane winding member is disposed in the second housing.

8. The dust collection and purification device as described in claim 6, characterized in that, The film winding component includes a roller and a second drive motor, the second drive motor being connected to the roller to drive the roller to rotate, and the flexible electrostatic film being connected to the roller.

9. The dust collection and purification device as described in claim 1, characterized in that, The dust collection and purification device also includes an ion generator, which is used to emit ions into the air to charge tiny particulate matter in the environment. The ions emitted by the ion generator have the opposite polarity to those of the flexible electrostatic membrane.

10. An air purifier, characterized in that, Includes the dust collection and purification device as described in any one of claims 1 to 9.

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