Electrostatic screen and device with air purification function

Abstract

This disclosure relates to an electrostatic filter and a device with air purification function. The electrostatic filter includes a filter element support and a filter element. The filter element support includes an integrated section and a dust sensor housed within the integrated section. The integrated section has an inlet for air entry and an outlet for air exit, and an airflow channel is formed inside the integrated section. The airflow channel is configured such that air introduced from the inlet passes through the monitoring element of the dust sensor and exits the integrated section through the outlet. The outlet is suitable for connecting to the air inlet of the device with air purification function. Through the above technical solution, the driving force for airflow through the dust sensor can be directly generated by the fan inside the device, which helps to reduce manufacturing costs and save energy, and improves the monitoring accuracy of the dust sensor.

Description

Technical Field

[0001] This disclosure relates to the field of air purification technology, and more particularly to an electrostatic filter and an air purification device equipped with the electrostatic filter. Background Technology

[0002] As living standards continue to improve, people are paying more and more attention to air quality in their living environment. For example, electrostatic filters are installed in air-purifying devices such as air conditioners to purify the air while regulating room temperature. In some related technologies, air quality monitoring devices are installed on the equipment. To allow air to flow through these devices, small fans are equipped within them. However, whether these small fans operate continuously or intermittently, it increases energy waste. Furthermore, dust monitoring devices equipped with small fans are costly and detrimental to sustainable development goals. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides an electrostatic filter and a device with air purification function.

[0004] According to a first aspect of the present disclosure, an electrostatic filter is provided, including a filter element support and a filter element. The filter element support includes an integrated portion and a dust sensor housed within the integrated portion. The integrated portion is provided with an inlet for air to enter and an outlet for air to exit, and an airflow channel is formed inside the integrated portion. The airflow channel is configured such that air introduced from the inlet passes through a monitoring element of the dust sensor and is then exited from the integrated portion through the outlet. The outlet is adapted to communicate with the air inlet of a device having an air purification function.

[0005] Optionally, the inlet is disposed on the upper cover plate of the integrated part, the outlet is disposed on the lower cover plate of the integrated part, the dust sensor has a through hole connecting the inlet and the outlet, the monitoring element is disposed in the through hole, and the airflow channel includes, in sequence along the airflow direction: an air guiding section disposed between the upper cover plate and the first end face of the dust sensor, the through hole, and an air collecting section disposed between the second end face of the dust sensor and the lower cover plate.

[0006] Optionally, the inner wall of the upper cover plate protrudes towards the dust sensor from the position of the inlet to form an annular abutment portion. The annular abutment portion seals against the first end face of the dust sensor to form an air guide cavity. The air guide cavity is connected to the inlet and the through hole to form the air guide section.

[0007] Optionally, the dust sensor has a mounting boss, and the integrated part is provided with a stepped part for supporting the mounting boss. The annular abutment part and the stepped part are configured to abut against the dust sensor from two end faces of the dust sensor, respectively.

[0008] Optionally, the inner wall of the lower cover plate is recessed in the direction away from the dust sensor to form a gas collection cavity, the outlet is disposed on the bottom wall of the gas collection cavity, and the through hole communicates with the gas collection cavity to form the gas collection section.

[0009] Optionally, the electrostatic filter further includes a dust cover for covering the inlet, the dust cover having a plurality of air inlets arranged in an array.

[0010] Optionally, the peripheral wall of the inlet protrudes in a direction away from the dust sensor to form an annular plug, the dust cover includes an integral cover body and an annular slot, the air inlet is disposed on the cover body, and the annular slot is used to interference fit around the outer periphery of the annular plug.

[0011] Optionally, the end of the annular plug away from the inlet is provided with a first guide slope, and the annular slot is provided with a second guide slope for engaging with the first guide slope.

[0012] Optionally, the outer wall surface of the upper cover of the integrated part is formed with a recess around the annular plug. The depth of the recess is configured such that the dust cover is flush with the outer surface of the integrated part, and the diameter of the recess is configured to be larger than the dust cover, so as to form a space for finger insertion between the recess and the dust cover.

[0013] The filter element is detachably mounted on the filter element support. The filter element support includes an L-shaped base and a rectangular grid plate. The grid plate is used to support the filter element. The L-shaped base includes an integration part disposed at the end of the grid plate and a mounting part disposed on the side of the grid plate. The mounting part is provided with a plurality of negative ion generating devices at intervals along the extending direction. The negative ion generating devices are positioned above the upper surface of the filter element.

[0014] The bearing surface of the grid plate and the L-shaped inner wall of the base form a recessed accommodating space, and the filter element is recessed into the accommodating space.

[0015] The dust sensor is connected to the negative ion generator, which is configured to turn on or off based on the air quality information obtained by the dust sensor.

[0016] According to a second aspect of the present disclosure, a device with an air purification function is provided, including a device body and an electrostatic filter according to any one of the above claims, wherein the device body is provided with an air inlet and a fan for introducing air into the device body through the air inlet, and the outlet of the electrostatic filter is connected to the air inlet.

[0017] Optionally, the middle frame of the main body of the device includes an installation platform and a recessed groove that is recessed inward relative to the installation platform, and the air inlet is disposed in the recessed groove; the filter element support includes the integrated part and a grid plate for supporting the filter element, the grid plate is recessed in the recessed groove, and the integrated part is at least partially erected on the installation platform.

[0018] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: This disclosure forms an airflow channel within the integrated portion of the electrostatic filter. The airflow channel is configured to allow air introduced from the inlet to pass through the monitoring element of the dust sensor and then exit from the integrated portion from the outlet. The outlet is adapted to connect with the air inlet of a device with a purification function. In this way, the driving force for air delivery to the dust sensor can be directly generated by the fan inside the device. Compared with related technologies, this disclosure can generate the driving force for air delivery without relying on the small fan carried by the dust sensor itself. Moreover, the monitored air can re-enter the device to participate in the air conditioning cycle, which helps to reduce manufacturing costs and save energy. In addition, by forming an airflow channel, air can flow directly through the dust sensor, improving the monitoring accuracy of the dust sensor.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0021] Figure 1 This is a cross-sectional view of an electrostatic filter according to an exemplary embodiment.

[0022] Figure 2 yes Figure 1 A magnified view of part A of the electrostatic filter.

[0023] Figure 3 This is an assembly diagram of a dust cover according to an exemplary embodiment.

[0024] Figure 4 This is a schematic diagram of a device with an air purification function according to an exemplary embodiment.

[0025] Figure 5 yes Figure 4 A cross-sectional view of a device with air purification function.

[0026] Explanation of reference numerals in the attached figures

[0027] 100-Electrostatic filter, 1-Filter element support, 11-Base, 111-Integration part, 1111-Upper cover plate, 11111-Inlet, 11112-Annular abutment part, 11113-Annular plug, 11114-First guide slope, 11115-Recess, 1112-Lower cover plate, 11121-Outlet, 11122-Step part, 11123-Gas collection chamber, 112-Mounting part, 113-Accommodation space, 12-Grid plate, 2-Dust sensor, 21-Through hole, 22-Mounting boss, 3-Dust cover, 31-Cover body, 311-Air inlet, 32-Annular slot, 321-Second guide slope, 4-Negative ion generator, 5-Filter element, 200-Equipment body, 210-Air inlet, 220-Middle frame, 221-Mounting platform, 222-Settling tank. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0029] Unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" are defined according to the directions indicated in the corresponding drawings, while "inner" and "outer" refer to the inner and outer contours of the corresponding component itself. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not imply sequentiality or importance.

[0030] It should be noted that all actions involving the acquisition of signals, information, or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where the application is located, and with the authorization granted by the owner of the relevant device.

[0031] like Figures 1 to 5As shown, this disclosure provides an electrostatic filter 100 applicable to devices with air purification functions. These devices include, but are not limited to, air conditioners, air purifiers, and air conditioning fans, which primarily achieve air purification through the filter element 5 or the combination of the filter element 5 and the negative ion generator 4. Taking an air conditioner equipped with the electrostatic filter 100 as an example, under the action of the internal cross-flow fan, air is introduced into the air conditioner through the filter element 5 and then participates in the air conditioning circulation.

[0032] Specifically, the electrostatic filter 100 of this disclosure includes a filter element support 1 and a filter element 5. The filter element support 5 includes an integration portion 111 and a dust sensor 2 housed within the integration portion 111. The dust sensor 2 can be a PM 2.5 sensor. The integration portion 111 is provided with an inlet 11111 for air entry and an outlet 11121 for air exit, and an airflow channel is formed inside the integration portion 111. Figure 1 and Figure 2 The dashed arrow in the middle indicates the direction of airflow. The airflow channel is configured such that air introduced from the inlet 11111 passes through the monitoring element of the dust sensor 2 and is then discharged from the integrated unit 111 through the outlet 11121. The outlet 11121 is adapted to communicate with the air inlet 210 of the device with air purification function.

[0033] When the equipment is operating, its internal fan starts, drawing in ambient air filtered through filter element 5 and introduced into the equipment through air inlet 210. Simultaneously, a portion of the air enters the integrated unit 111 from inlet 11111, where the dust sensor 2 monitors the concentration of particulate matter. The air is then exited from the integrated unit 111 through outlet 11121 and re-enters the equipment through air inlet 210. Because outlet 11121 is connected to air inlet 210, the driving force for airflow within the airflow channel can directly come from the internal fan, eliminating the need for an additional small fan for the dust sensor 2 as required in related technologies. Of course, a small fan can be retained for the dust sensor 2 to ensure continued environmental quality monitoring even if the internal fan malfunctions.

[0034] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: This disclosure forms an airflow channel in the integrated portion 111 of the electrostatic filter 100. The airflow channel is configured to allow air introduced from the inlet 11111 to pass through the monitoring element of the dust sensor 2 and then exit the integrated portion 111 through the outlet 11121. The outlet 11121 is adapted to be connected to the air inlet 210 of the equipment with purification function. In this way, the driving force for air delivery to the dust sensor 2 can be directly generated by the fan inside the equipment. Compared with related technologies, this disclosure can generate the driving force for air delivery without relying on the small fan carried by the dust sensor 2 itself. Moreover, the monitored air can re-enter the equipment to participate in the air conditioning cycle, which helps to reduce manufacturing costs and save energy. In addition, by forming an airflow channel, the air can flow directly through the dust sensor 2, which improves the monitoring accuracy of the dust sensor 2.

[0035] According to this embodiment, the inlet 11111 is disposed on the upper cover plate 1111 of the integration unit 111, and the outlet 11121 is disposed on the lower cover plate 1112 of the integration unit 111. The dust sensor 2 has a through hole 21 connecting the inlet 11111 and the outlet 11121. The monitoring element of the dust sensor 2 is disposed in the through hole 21. At this time, the through hole 21 of the dust sensor 2 is used as part of the airflow channel. Specifically, the airflow channel includes, in sequence along the airflow direction: an air guide section disposed between the upper cover plate 1111 and the first end face of the dust sensor 2, a through hole 21, and an air collection section disposed between the second end face of the dust sensor 2 and the lower cover plate 1112. That is, the air introduced into the integration unit 111 from the inlet 11111 enters the through hole 21 through the air guide section. The dust in the through hole 21 can be detected and identified by the monitoring element. Then, the air discharged from the through hole 21 is discharged from the integration unit 111 through the air collection section and exits from the outlet 11121. Finally, it enters the equipment from the air inlet 210.

[0036] In some implementations, such as Figure 2 As shown, the inner wall of the upper cover plate 1111 protrudes towards the dust sensor 2 from the position corresponding to the inlet 11111, forming an annular abutment portion 11112. The area surrounded by the annular abutment portion 11112 can at least cover the diameter of the inlet 11111 and the through hole 21. The annular abutment portion 11112 seals against the first end face of the dust sensor 2 to form an air guide cavity. The air guide cavity is connected to both the inlet 11111 and the through hole 21 to form an air guide section. The air guide cavity formed by the annular abutment portion 11112 allows the air introduced from the inlet 11111 to converge in the air guide cavity and then enter the through hole 21, without diffusing into the interior of the entire integrated part 111. This improves the efficiency of air delivery and allows the introduced air to directly enter the through hole 21, further improving the accuracy of monitoring.

[0037] Furthermore, the dust sensor 2 has a mounting boss 22, which can be formed by the side outward protrusion of the housing of the dust sensor 2. The integrated part 111 is provided with a stepped part 11122 for supporting the mounting boss 22. The annular abutment part 11112 and the stepped part 11122 are configured to abut against the dust sensor 2 from the two end faces of the dust sensor 2, respectively. The cooperation of the annular abutment part 11112 and the stepped part 11122 achieves the limiting of the dust sensor 2, avoiding positional displacement that would affect the accuracy of the monitoring results.

[0038] In other implementations, such as Figure 2 The inner wall of the lower cover plate 1112 is recessed in the direction away from the dust sensor 2 to form an air collecting cavity 11123. The outlet 11121 is located on the bottom wall of the air collecting cavity 11123, and the through hole 21 communicates with the air collecting cavity 11123 to form an air collecting section. The recessed air collecting cavity 11123 can increase the air intake by increasing the distance between the dust sensor 2 and the outlet 11121, thereby improving the air delivery efficiency. Furthermore, the recessed air collecting cavity 11123 is more conducive to collecting air.

[0039] According to embodiments of this disclosure, such as Figure 2 and Figure 3 As shown, the electrostatic filter 100 may further include a dust cover 3 for covering the inlet 11111, with a plurality of air inlets 311 arranged in an array on the dust cover 3 to allow air to enter. A primary filter may be provided inside the dust cover 3 to preliminarily filter out larger dust particles in the air. The dust cover 3 may be integrally formed on the integrated portion 111, for example, by integrally forming a plurality of air inlets 311 on the upper cover plate 1111 of the integrated portion 111 during injection molding. Alternatively, the dust cover 3 may be configured to detachably cover the inlet 11111, for example, by inserting the dust cover 3 into the inlet 11111.

[0040] In some implementations, reference continues. Figure 2 and Figure 3 The peripheral wall of the inlet 11111 protrudes away from the dust sensor 2 to form an annular plug 11113. The dust cover 3 includes a cover body 31 and an annular slot 32 with an integral structure. For example, the cover body 31 and the annular slot 32 are integrally injection molded. The air inlet 311 is provided on the cover body 31, and the annular slot 32 is used to interference fit onto the outer periphery of the annular plug 11113. Through the interference fit between the annular plug 11113 and the annular slot 32, the dust cover 3 can be securely installed, preventing the dust cover 3 from accidentally falling off when the equipment is moved or vibrated. Optionally, the dust cover 3 is made of plastic material, so that it is interference fitted onto the annular plug 11113 by relying on the elasticity of the rubber material itself.

[0041] Furthermore, the end of the annular plug 11113 furthest from the inlet 11111 is provided with a first guide slope 11114, and the annular slot 32 is provided with a second guide slope 321 for engaging with the first guide slope 11114. Through the engagement of the guide slopes, the annular slot 32 can be more easily fitted onto the annular plug 11113, improving the assembly efficiency of the dust cover 3.

[0042] Furthermore, a recess 11115 can be formed on the outer wall of the upper cover 1111 surrounding the annular plug 11113. The depth of the recess 11115 is configured such that the dust cover 3 is flush with the outer surface of the integrated portion 111. The flat surface of the upper cover 1111 is more aesthetically pleasing and less prone to dust accumulation. The diameter of the recess 11115 is configured to be larger than that of the dust cover 3, so as to form a space for finger insertion between the recess 11115 and the dust cover 3. That is, the outer edge of the cover 31 is used as a handle to remove the dust cover 3.

[0043] In some implementations, such as Figure 4 and Figure 5 As shown, the filter element 5 is detachably mounted on the filter element support 1. The filter element support 1 includes an L-shaped base 11 and a rectangular grid plate 12. The grid plate 12 includes multiple staggered horizontal and vertical ribs for supporting the filter element 5. The L-shaped base 11 includes an integration portion 111 at the end of the grid plate 12 and a mounting portion 112 on the side of the grid plate 12. The mounting portion 112 can be designed as, for example, a strip shape. Multiple negative ion generators 4 are spaced apart along the extending direction of the mounting portion 112, i.e., along the long side of the grid plate 12. The negative ion generators 4 are positioned above the upper surface of the filter element 5, thereby emitting negative ions onto the upper surface of the filter element 5. Furthermore, a recessed receiving space 113 is formed between the bearing surface of the grid plate 12 and the L-shaped inner wall of the base 11. The filter element 5 is recessed into the receiving space 113. Thus, the L-shaped inner wall of the base 11 provides horizontal restraint for the filter element 5, facilitating installation and positioning.

[0044] The filter element 5 can be disassembled separately from the filter element support 1, allowing it to be reused after cleaning, which helps save on operating costs. Furthermore, since the negative ion generator 4 is mounted on the filter element support 1, specifically on the mounting part 112, cleaning or maintaining the filter element 5 will not affect the negative ion generator 4. This eliminates the tedious process of removing the negative ion generator 4 when cleaning the filter element 5 and avoids the problem of damaging the negative ion generator 4 while cleaning it. Additionally, the negative ion generator 4 is positioned above the upper surface of the filter element 5. Because negative ions carry a negative charge, when they encounter dust particles in the air, the positive and negative charges combine, causing the dust particles to clump together. This further enhances the filtration effect of the filter element 5, achieving better air purification.

[0045] In some embodiments, the dust sensor 2 is connected to the negative ion generator 4, either via a wire or a signal connection. The negative ion generator 4 is configured to turn on or off based on air quality information acquired by the dust sensor 2. In some applications, the device operates by starting its internal fan, and ambient air is filtered by the filter element 5 and introduced into the device through the air inlet 210. Simultaneously, a portion of the air enters the integrated unit 111 from the inlet 11111, and after the dust sensor 2 monitors the concentration of particulate matter, it is exited from the integrated unit 111 from the outlet 11121 and then enters the device through the air inlet 210. The negative ion generator 4 selects to turn on or off based on the air quality information acquired by the dust sensor 2, i.e., whether the PM2.5 concentration in the air exceeds a preset standard. For example, air quality can be classified into different levels based on PM2.5 concentration, including good, lightly polluted, and heavily polluted. When the air quality is good, the negative ion generator 4 can be turned off to save energy, while it can be turned on when the air quality is lightly or heavily polluted.

[0046] According to a second aspect of the embodiments of this disclosure, such as Figure 4 and Figure 5 As shown, an air purification device is provided, including a device body 200 and an electrostatic filter 100. The electrostatic filter 100 is the electrostatic filter in any of the above embodiments and has all its beneficial effects, which will not be repeated here. The device body 200 is provided with an air inlet 210 and a fan for introducing air into the device body 200 through the air inlet 210. The fan can be, for example, a cross-flow fan. The outlet 11121 of the electrostatic filter 100 is connected to the air inlet 210. In some embodiments, the device body 200 and the electrostatic filter 100 are detachably connected, for example, the device body 200 is detachably connected to the electrostatic filter 100 via a snap-fit ​​structure.

[0047] In some embodiments, the middle frame 220 of the device body 200 includes a mounting platform 221 and a recessed groove 222 relative to the mounting platform 221, with the air inlet 210 disposed within the recessed groove 222. The filter element support 1 includes an integrated portion 111 and a grid plate 12 for supporting the filter element 5, the grid plate 12 being recessed within the recessed groove 222, and the integrated portion 111 being at least partially mounted on the mounting platform 221. For example, in some applications, the outlet 11121 of the integrated portion 111 communicates with the air inlet 210 of the device, requiring a portion of the integrated portion 111 to be mounted on the grid plate 12. In other applications, the outlet 11121 of the integrated portion 111 is not communicated with the air inlet 210 of the device; to avoid the integrated portion 111 obstructing the air inlet 210, the integrated portion 111 can be configured to be entirely placed on the mounting platform 221.

[0048] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0049] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An electrostatic screen, characterized in that The device includes a filter element holder and a filter element. The filter element holder includes an integrated section and a dust sensor housed within the integrated section. The integrated section has an inlet for air entry and an outlet for air exit. The inlet is located on an upper cover plate of the integrated section, and the outlet is located on a lower cover plate of the integrated section. The dust sensor has a through hole connecting the inlet and the outlet, and the monitoring element of the dust sensor is disposed within the through hole. An airflow channel is formed inside the integrated section. The airflow channel includes, in sequence along the airflow direction, an air guide section disposed between the upper cover plate and a first end face of the dust sensor, the through hole, and an air collection section disposed between a second end face of the dust sensor and the lower cover plate. The airflow channel is configured such that air introduced from the inlet passes through the monitoring element of the dust sensor and then exits from the outlet into the integrated section. The outlet is adapted to communicate with the air inlet of a device with an air purification function.

2. The electrostatic screen according to claim 1, wherein, The inner wall of the upper cover plate protrudes towards the dust sensor from the position of the inlet to form an annular abutment. The annular abutment seals against the first end face of the dust sensor to form an air guide cavity. The air guide cavity is connected to the inlet and the through hole to form the air guide section.

3. The electrostatic filter according to claim 2, characterized in that, The dust sensor has a mounting boss, and the integrated part is provided with a stepped part for supporting the mounting boss. The annular abutment part and the stepped part are configured to abut against the dust sensor from two end faces of the dust sensor, respectively.

4. The electrostatic screen of claim 1, wherein, The inner wall of the lower cover plate is recessed in the direction away from the dust sensor to form a gas collection cavity. The outlet is located on the bottom wall of the gas collection cavity, and the through hole communicates with the gas collection cavity to form the gas collection section.

5. The electrostatic screen of claim 1, wherein, The electrostatic filter also includes a dust cover for covering the inlet, on which multiple air inlets are arranged in an array.

6. The electrostatic filter according to claim 5, characterized in that, The peripheral wall of the inlet protrudes in a direction away from the dust sensor to form an annular plug. The dust cover includes a cover body with an integral structure and an annular slot. The air inlet is disposed on the cover body. The annular slot is used to fit over the outer periphery of the annular plug.

7. The electrostatic screen according to claim 6, wherein, The end of the annular plug away from the inlet is provided with a first guide slope, and the annular slot is provided with a second guide slope for engaging with the first guide slope.

8. The electrostatic screen according to claim 6, wherein, The outer wall of the upper cover of the integrated part has a recessed portion formed around the annular plug. The depth of the recessed portion is configured such that the dust cover is flush with the outer surface of the integrated part, and the diameter of the recessed portion is configured to be larger than the dust cover, so as to form a space for finger insertion between the recessed portion and the dust cover.

9. The electrostatic screen of claim 1, wherein, The filter element is detachably mounted on the filter element support, which includes an L-shaped base and a rectangular grid plate. The grid plate supports the filter element. The L-shaped base includes an integration portion disposed at the end of the grid plate and a mounting portion disposed on the side of the grid plate. The mounting portion is provided with a plurality of negative ion generating devices at intervals along the extending direction. The negative ion generating devices are positioned above the upper surface of the filter element.

10. The electrostatic screen according to claim 9, wherein, The bearing surface of the grid plate and the L-shaped inner wall of the base form a recessed accommodating space, and the filter element is recessed into the accommodating space.

11. The electrostatic screen according to claim 9, wherein, The dust sensor is connected to the negative ion generator, which is configured to turn on or off based on the air quality information obtained by the dust sensor.

12. An apparatus having an air purification function, characterized by comprising: The device includes a main body and an electrostatic filter according to any one of claims 1-11. The main body is provided with an air inlet and a fan for introducing air into the interior of the main body through the air inlet. The outlet of the electrostatic filter is connected to the air inlet.

13. The apparatus having an air purification function according to claim 12, wherein, The main body of the equipment includes a mounting platform and a recessed groove that is recessed inward relative to the mounting platform, and the air inlet is disposed in the recessed groove; the filter element support includes the integrated part and a grid plate for supporting the filter element, the grid plate is recessed in the recessed groove, and the integrated part is at least partially erected on the mounting platform.

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