Purifying device for fresh air conditioning system and fresh air conditioning system

Abstract

The utility model relates to the technical field of household appliances, and discloses a purification device for a fresh air conditioning system, the fresh air conditioning system comprises a fan and an air duct, the air duct comprises an air inlet, and the fan is arranged in the air duct and used for driving air to flow in the preset direction; the purification device comprises a mounting frame assembly and a purification filter element. The mounting frame assembly is provided with a mounting area, and the mounting frame assembly is arranged between the air inlet and the fan; the purification filter element is mounted in the mounting area and comprises a first purification layer and a second purification layer, and the first purification layer and the second purification layer are arranged in the air flowing direction; wherein the first purification layer is configured to be a PTFE filter screen, and the first purification layer and the second purification layer are of a split type structure. Thus, a user can repeatedly use the first purification layer, the use cost of the user is reduced, and the use experience of the user is improved. Meanwhile, the utility model further discloses a fresh air conditioning system.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, such as a purification device and a fresh air conditioning system for a fresh air conditioning system. Background Technology

[0002] As society develops, people have increasingly higher requirements for their living environment. Indoor air sometimes contains volatile organic compounds or dust, which can affect human health. Therefore, users now install fresh air conditioning systems indoors to introduce outdoor air as needed, thereby improving indoor air quality.

[0003] In related technologies, a filter structure is typically installed within the fresh air conditioning system to filter the air flowing into the room. This filter removes dust and other impurities from the outdoor air, further improving indoor air quality.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In related technologies, existing fresh air conditioning systems with filter structures generally use HEPA (High Efficiency Particulate Air Filter) filters, which are typically made of polypropylene or other composite materials. As a result, existing filter structures are not washable, which requires users to replace the filters frequently, increasing user costs and thus reducing the user experience.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a purification device and a fresh air conditioning system for use in a fresh air conditioning system. A first purification layer, configured as a PTFE filter, is provided on the side near the air inlet. This arrangement allows for water washing of the first purification layer while maintaining the purification effect of the device. This enables the user to reuse the first purification layer, reducing operating costs and improving the user experience.

[0009] This disclosure provides a purification device for a fresh air conditioning system. The fresh air conditioning system includes a fan and an air duct. The air duct includes an air inlet. The fan is disposed within the air duct and drives air to flow in a preset direction. The purification device includes a mounting frame assembly and a purification filter element. The mounting frame assembly has an installation area and is disposed between the air inlet and the fan. The purification filter element is installed in the installation area and includes a first purification layer and a second purification layer, which are arranged along the airflow direction. The first purification layer is configured as a PTFE filter, and the first and second purification layers adopt a separate structure.

[0010] In some embodiments, the mounting frame assembly includes a filter element frame and a support structure. The filter element frame includes a mounting frame that encloses a mounting area; the support structure is mounted on the mounting frame and is located on the side of the mounting area facing the air inlet.

[0011] In some embodiments, there is a separation gap between the edge of the first purification layer and the edge of the second purification layer; a separation protrusion is provided on the side wall surface of the mounting frame at a position corresponding to the separation gap; wherein the separation protrusion can be embedded in the separation gap.

[0012] In some embodiments, the mounting frame is provided with a plurality of separation protrusions, and at least some of the separation protrusions are disposed opposite to the sidewalls on both sides of the mounting frame.

[0013] In some embodiments, the mounting frame includes a snap-fit ​​portion; the support structure is provided with a snap-fit ​​mating portion corresponding to the snap-fit ​​portion; wherein the snap-fit ​​mating portion can snap onto the snap-fit ​​portion to snap the support structure onto the mounting frame.

[0014] In some embodiments, the support structure includes a snap-fit ​​frame and a support strip. The snap-fit ​​frame corresponds to the mounting frame and has a snap-fit ​​mating part disposed on the snap-fit ​​frame; the support strip corresponds to the mounting area and has its two ends respectively connected to two opposite edges of the snap-fit ​​frame.

[0015] In some embodiments, the support structure includes a plurality of support bars; wherein, a plurality of support bars are provided in a horizontal direction, and / or, a plurality of support bars are provided in a vertical direction.

[0016] In some embodiments, the mounting frame assembly is configured as an arc-shaped structure; the purification filter element corresponds to the mounting frame assembly being configured as an arc-shaped structure.

[0017] This disclosure also provides a fresh air conditioning system including: a fan assembly and the aforementioned purification device for the fresh air conditioning system. The fan assembly includes a fan and a housing. The fan is provided with an air inlet, and the housing is provided with an air duct that communicates with the air inlet of the fan. The purification device for the fresh air conditioning system is installed in the air duct and is positioned corresponding to the air inlet.

[0018] In some embodiments, the air duct is provided with a slot corresponding to the air inlet end; wherein the purification device can be inserted into the slot.

[0019] The purification device and fresh air conditioning system for a fresh air conditioning system provided in this disclosure can achieve the following technical effects:

[0020] This disclosure provides a purification device for a fresh air conditioning system. The fresh air conditioning system includes a fan and an air duct. The air duct includes an air inlet, and the fan is disposed within the air duct to drive air to flow in a preset direction. The purification device includes a mounting frame assembly and a purification filter element. The mounting frame assembly has an installation area and is disposed between the air inlet and the fan. The purification filter element is installed in the installation area and includes a first purification layer and a second purification layer, which are arranged along the airflow direction. The first purification layer is configured as a PTFE filter, and the first and second purification layers adopt a separate structure. In this way, the user can introduce outdoor or indoor air into the air duct through the fan assembly, and then the fan assembly blows the air in the air duct into the room through the air outlet. The air first flows through the first purification layer, is purified by the first purification layer, and then flows through other purification layers. This arrangement allows for water washing of the first purification layer while ensuring the purification effect of the purification device. This allows the user to reuse the first purification layer, reducing user costs and improving the user experience.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram of a purification device and fan assembly for a fresh air conditioning system provided in an embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram of the structure of a purification device for a fresh air conditioning system provided in an embodiment of this disclosure;

[0025] Figure 3 This is a cross-sectional view of a purification device for a fresh air conditioning system provided in an embodiment of this disclosure;

[0026] Figure 4 This is a schematic diagram of the structure of a filter element frame provided in an embodiment of this disclosure;

[0027] Figure 5 This is a schematic diagram of a support structure provided in an embodiment of this disclosure.

[0028] Figure label:

[0029] 10: Fan; 11: Air inlet; 12: Purification device; 13: Installation area;

[0030] 20: Mounting frame assembly; 21: Filter element frame; 211: Mounting frame; 212: Fixing part; 213: Snap-fit ​​part; 214: Handle; 215: Separation protrusion; 22: Support structure; 221: Snap-fit ​​frame; 222: Support strip; 223: Snap-fit ​​mating part;

[0031] 30: Purification filter element; 31: First purification layer; 32: Second purification layer; 33: Separation gap. Detailed Implementation

[0032] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0033] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0034] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0035] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0036] Unless otherwise stated, the term "multiple" means two or more.

[0037] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0038] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0040] In existing technologies, air conditioners typically use HEPA (High Efficiency Particulate Air Filter) devices for air purification. These filters achieve PM2.5 deposition and adsorption through their high filtration efficiency and electrostatic forces such as Coulomb forces on their surface. However, after washing, the pore size of the melt-blown filter media in HEPA filters is damaged and enlarged, and the surface electrostatic forces disappear, rendering them unable to filter PM2.5. Therefore, users need to replace the HEPA filter after three to six months of use, which increases operating costs and leads to a poor user experience.

[0041] like Figures 1 to 5 As shown in the figure, this disclosure provides a purification device 12 and a fresh air conditioning system for a fresh air conditioning system. A first purification layer 31 is provided on the side near the air inlet, and the first purification layer 31 is configured as a PTFE filter. This configuration allows the first purification layer 31 to be washed with water while ensuring the purification effect of the purification device 12. In this way, the user can reuse the first purification layer 31, reducing the user's operating costs and improving the user experience.

[0042] like Figures 1 to 5As shown, this embodiment of the present disclosure provides a purification device 12 for a fresh air conditioning system. The fresh air conditioning system includes a fan 10 and an air duct. The air duct includes an air inlet. The fan 10 is disposed in the air duct and is used to drive air to flow in a preset direction. The purification device 12 includes a mounting frame assembly 20 and a purification filter element 30. The mounting frame assembly 20 is provided with a mounting area 13 and is disposed between the air inlet and the fan 10. The purification filter element 30 is installed in the mounting area 13 and includes a first purification layer 31 and a second purification layer 32, which are arranged along the air flow direction. The first purification layer 31 is configured as a PTFE (polytetrafluoroethylene) filter, and the first purification layer 31 and the second purification layer 32 adopt a split structure.

[0043] Specifically, the air duct includes an indoor air inlet, an outdoor air inlet, and an air outlet. The fan 10 is equipped with an air inlet end 11, which can introduce indoor or outdoor air into the air duct and then blow it into the room through the air outlet. The mounting frame is fixedly installed inside the air duct, and the mounting area 13 is located on one side of the air inlet end 11. The purification filter element 30 is fixedly installed in the mounting area 13, and the size of the purification filter element 30 is greater than or equal to the size of the air inlet end 11. The first purification layer 31 and the second purification layer 32 adopt a separate structure, allowing the user to remove either the first purification layer 31 or the second purification layer 32 separately from the mounting area 13.

[0044] When the fresh air conditioning system is operating, the fan 10 can draw outdoor or indoor air into the duct and then blow it into the room through the duct's outlet. The air blown into the room first flows through the first purification layer 31, where it undergoes initial filtration. The air filtered by the first purification layer 31 then flows through the second purification layer 32 for a second filtration before flowing back into the room. This first filtration by the first purification layer 31 followed by filtration by the second purification layer 32 extends the lifespan of the second purification layer 32. Furthermore, since the first purification layer 31 is configured with a PTFE filter, the user can directly remove it for washing. This design allows for washing of the first purification layer 31 while maintaining the purification effect of the purification device 12. This enables the user to reuse the first purification layer 31, reducing operating costs and improving the user experience.

[0045] In practical applications, the second purification layer 32 can be selected by the user according to actual needs. For example, the second purification layer 32 can be any one or more of the following: PTFE filter, glass fiber filter, polypropylene meltblown electrostatic electret filter, polypropylene meltblown electrostatic electret composite filter, composite filter that can be cleaned with a vacuum cleaner, or PVDF (polyvinylidene fluoride) microporous membrane filter.

[0046] Optionally, the first purification layer 31 can be directly fixed to the second purification layer 32 by means of mounting frame assembly 20, or it can be directly fixed to the second purification layer 32 by means of adhesive bonding or other methods.

[0047] Optionally, the first purification layer 31 can be directly attached to the second purification layer 32, or a gap can be formed between the first purification layer 31 and the second purification layer 32.

[0048] Optionally, the size of the first purification layer 31 is greater than or equal to the size of the second purification layer 32, so that the first purification layer 31 can completely cover one side of the second purification layer 32.

[0049] like Figures 2 to 5 As shown, in some embodiments, the mounting frame assembly 20 includes a filter element frame 21 and a support structure 22. The filter element frame 21 includes a mounting frame 211 that encloses a mounting area 13; the support structure 22 is mounted on the mounting frame 211 and is located on the side of the mounting area 13 facing the air inlet.

[0050] Specifically, the support structure 22 can be fixedly installed on the mounting frame 211, and the support structure 22 is located on the side of the mounting area 13 facing the air inlet. The area of ​​the projection of the support structure 22 onto the plane containing the mounting area 13 is greater than or equal to the cross-sectional area of ​​the corresponding mounting area 13. Thus, after the purification filter element 30 is installed in the mounting area 13, the support structure 22 can abut against the first purification layer 31 to fix the purification filter element 30.

[0051] like Figure 3 and Figure 4 As shown, in some embodiments, there is a separation gap 33 between the edge of the first purification layer 31 and the edge of the second purification layer 32; a separation protrusion 215 is provided on the side wall of the mounting frame 211 at the position corresponding to the separation gap 33; wherein, the separation protrusion 215 can be embedded in the separation gap 33.

[0052] Specifically, after the first purification layer 31 and the second purification layer 32 are installed in the installation area 13, the separation protrusion 215 is located between the first purification layer 31 and the second purification layer 32, and the separation protrusion 215 is embedded in the separation gap 33. In this way, the user can directly separate the first purification layer 31 and the second purification layer 32 from the separation gap 33 from the separation protrusion 215, making it more convenient for the user to disassemble the first purification layer 31 and the second purification layer 32.

[0053] In some embodiments, the mounting frame 211 is provided with a plurality of separation protrusions 215, and at least some of the separation protrusions 215 are disposed opposite to the sidewalls on both sides of the mounting frame 211.

[0054] Specifically, the edges of the first purification layer 31 and the second purification layer 32 have separation gaps 33 at multiple locations, and multiple separation protrusions 215 are respectively embedded in the multiple separation gaps 33. This makes it easier for users to separate the first purification layer 31 and the second purification layer 32 from different locations to disassemble the first purification layer 31 and the second purification layer 32.

[0055] In some practical applications, the left and right walls of the mounting frame 211 are respectively provided with a left separation protrusion 215 and a right separation protrusion 215. The left separation protrusion 215 is embedded in the separation gap 33 on the left side of the first purification layer 31 and the second purification layer 32, and the right separation protrusion 215 is embedded in the separation gap 33 on the right side of the first purification layer 31 and the second purification layer 32. In this way, the user can separate the first purification layer 31 and the second purification layer 32 from the left and right sides respectively.

[0056] In other practical applications, the upper and lower sidewalls of the mounting frame 211 are respectively provided with an upper separation protrusion 215 and a lower separation protrusion 215. The upper separation protrusion 215 is embedded in the separation gap 33 on the upper side of the first purification layer 31 and the second purification layer 32, and the lower separation protrusion 215 is embedded in the separation gap 33 on the lower side of the first purification layer 31 and the second purification layer 32. In this way, the user can separate the first purification layer 31 and the second purification layer 32 from the upper and lower sides respectively.

[0057] like Figures 2 to 5 As shown, in some embodiments, the mounting frame 211 includes a snap-fit ​​portion 213; the support structure 22 is provided with a snap-fit ​​mating portion 223 corresponding to the snap-fit ​​portion 213; wherein the snap-fit ​​mating portion 223 can snap onto the snap-fit ​​portion 213 to snap the support structure 22 onto the mounting frame 211.

[0058] Specifically, the mounting frame 211 includes a slot to form a snap-fit ​​part 213, and the support structure 22 has a buckle at a position corresponding to the slot to form a snap-fit ​​mating part 223. After the purification filter element 30 is installed in the mounting area 13, the buckle of the support structure 22 can be snapped into the slot of the mounting frame 211 to snap the support structure 22 into the filter element frame 21. This makes it easier for the user to disassemble or install the first purification layer 31.

[0059] Optionally, the mounting frame 211 is provided with multiple slots, and the support structure 22 is provided with multiple buckles corresponding to the mounting frame 211. The multiple buckles can be respectively engaged with the multiple slots to improve the stability of the support structure 22 in engagement with the filter element frame 21.

[0060] like Figures 2 to 5As shown, in some embodiments, the support structure 22 includes a snap-fit ​​frame 221 and a support strip 222. The snap-fit ​​frame 221 is provided corresponding to the mounting frame 211, and the snap-fit ​​mating part 223 is provided on the snap-fit ​​frame 221; the support strip 222 is provided corresponding to the mounting area 13, and the two ends of the support strip 222 are respectively connected to the two opposite edges of the snap-fit ​​frame 221.

[0061] Specifically, the support strip 222 and the snap-fit ​​frame 221 are integrated, and the support strip 222 is arranged parallel to the purification filter element 30. After the purification filter element 30 is installed in the installation area 13, the snap-fit ​​frame 221 can be snapped onto the filter element frame 21. At this time, the support strip 222 can abut against the side wall of the first purification layer 31 to prevent the first purification layer 31 from coming off the side of the support strip 222 and exiting the installation area 13.

[0062] It is understandable that using support strips 222 to support the purification filter element 30 can reduce the impact of the support structure 22 on the airflow passing through the purification filter element 30.

[0063] like Figures 2 to 5 As shown, in some embodiments, the support structure 22 includes a plurality of support bars 222; wherein, a plurality of support bars 222 are arranged in the horizontal direction, and / or, a plurality of support bars 222 are arranged in the vertical direction.

[0064] Specifically, the support structure 22 includes multiple support bars 222, and the multiple support bars 222 respectively abut against the side wall of the purification filter element 30 to increase the stability of the purification filter element 30 installation.

[0065] In some practical applications, the support bars 222 are arranged vertically, and multiple support bars 222 are spaced apart horizontally.

[0066] In other practical applications, the support bars 222 are arranged horizontally, and multiple support bars 222 are spaced apart vertically.

[0067] In other practical applications, some support bars 222 are arranged vertically and are spaced apart horizontally; and some support bars 222 are arranged horizontally and are spaced apart vertically.

[0068] like Figures 2 to 5 As shown, optionally, the filter element frame 21 also includes a fixing part 212, which is located on the side of the mounting area 13 opposite to the air inlet. The fixing part 212 is fixedly connected to the mounting frame 211. Thus, after the purification filter element 30 is installed in the mounting area 13, the fixing part 212 can abut against the other side of the purification filter element 30 to fix the purification filter element 30.

[0069] like Figures 2 to 5 As shown, optionally, the fixing part 212 includes a plurality of fixing strips; wherein, a plurality of fixing strips are provided in the horizontal direction, and / or, a plurality of fixing strips are provided in the vertical direction.

[0070] Specifically, the fixing strip and the mounting frame 211 adopt an integrated structure, and the fixing strip is set parallel to the purification filter element 30. After the purification filter element 30 is installed in the mounting area 13, the fixing strip can abut against the side wall of the purification filter element 30 to prevent the purification filter element 30 from coming off the side of the fixing strip and leaving the mounting area 13. At the same time, multiple fixing strips abut against the side wall of the purification filter element 30 to increase the stability of the installation of the purification filter element 30.

[0071] In some practical applications, the fixing strips are set vertically, and multiple fixing strips are set at intervals in the horizontal direction.

[0072] In other practical applications, the fixing strips are set horizontally, and multiple fixing strips are spaced apart vertically.

[0073] In other practical applications, some fixing bars are arranged vertically and are spaced apart horizontally; and some fixing bars are arranged horizontally and are spaced apart vertically.

[0074] like Figure 2 and Figure 3 As shown, in some embodiments, the mounting frame assembly 20 is configured as an arc-shaped structure; the purification filter element 30 corresponds to the mounting frame assembly 20 being configured as an arc-shaped structure.

[0075] Specifically, the mounting frame assembly 20 and the purification filter element 30 are respectively set into an arc-shaped structure, making it easier for users to install the purification device 12 into the fresh air conditioning system.

[0076] like Figures 1 to 5 As shown, this embodiment of the present disclosure also provides a fresh air conditioning system including: a fan 10 assembly and the aforementioned purification device 12 for the fresh air conditioning system. The fan 10 assembly includes a fan 10 and a housing. The fan 10 is provided with an air inlet 11, and the housing is provided with an air duct, which communicates with the air inlet 11 of the fan 10. The purification device 12 for the fresh air conditioning system is installed in the air duct, and the purification device 12 is provided corresponding to the air outlet.

[0077] Specifically, the fan 10 is installed in the air duct, which is also equipped with an indoor air inlet, an outdoor air inlet, and an air outlet. The indoor air inlet and the air outlet are connected to the indoor environment, and the outdoor air inlet is connected to the outdoor environment, so that the fan 10 can introduce indoor or outdoor air into the room.

[0078] In a fresh air conditioning system employing the purification device 12 of this application, when the system is in operation, the user can introduce outdoor or indoor air into the duct via a fan assembly, which then blows the air from the duct into the room through the outlet. The air first flows through a first purification layer, and after being purified by this layer, it flows through other purification layers. This arrangement ensures the purification effect of the device while simultaneously allowing the first purification layer to be washed with water. This allows the user to reuse the first purification layer, reducing operating costs and improving the user experience.

[0079] In some embodiments, the air duct is provided with a slot corresponding to the air outlet; wherein the purification device 12 can be inserted into the slot.

[0080] Specifically, the slot is set parallel to the air inlet 11. A handle 214 is provided on one side of the purification device 12, which allows the user to insert the purification device 12 into the slot or pull the purification device 12 out of the slot.

[0081] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A purification device for a fresh air conditioning system, characterized by, The fresh air conditioning system comprises a fan and an air duct, the air duct comprises an air inlet, and the fan is arranged in the air duct and used to drive air to flow in a preset direction; The purification device comprises: a mounting frame assembly provided with a mounting area, and the mounting frame assembly is arranged between the air inlet and the fan; and a purification filter element mounted in the mounting area, the purification filter element comprising a first purification layer and a second purification layer, and the first purification layer and the second purification layer are arranged along the air flow direction; wherein the first purification layer is configured as a PTFE filter screen, and the first purification layer and the second purification layer adopt a split structure.

2. The purification device of claim 1, wherein, The mounting frame assembly comprises: a filter element frame comprising a mounting border, the mounting border enclosing the mounting area; and a support structure mounted on the mounting border, and the support structure is located on the side of the mounting area facing the air inlet.

3. The purification device according to claim 2, wherein there is a separation gap between the edge of the first purification layer and the edge of the second purification layer; and the side wall surface of the mounting border is provided with a separation protrusion at a position corresponding to the separation gap; wherein the separation protrusion can be embedded in the separation gap.

4. The purification device according to claim 3, wherein the mounting border is provided with a plurality of separation protrusions, and at least some of the separation protrusions are oppositely arranged on the side wall surfaces of the mounting border on both sides.

5. The purification device according to claim 2, wherein the mounting border comprises a clamping portion; and the support structure is provided with a clamping matching portion corresponding to the clamping portion; wherein the clamping matching portion can be clamped in the clamping portion to clamp the support structure to the mounting border.

6. The purification device of claim 5, wherein, The support structure comprises: a clamping border corresponding to the mounting border, and the clamping matching portion is arranged on the clamping border; and a support bar corresponding to the mounting area, and both ends of the support bar are respectively connected to the opposite edges of the clamping border.

7. The purification device according to claim 6, wherein the support structure comprises a plurality of support bars; wherein a plurality of support bars are arranged in the horizontal direction, and / or a plurality of support bars are arranged in the vertical direction.

8. The purification device according to any one of claims 1 to 7, wherein the mounting frame assembly is configured as an arc-shaped structure; and the purification filter element is configured as an arc-shaped structure corresponding to the mounting frame assembly.

9. A fresh air conditioning system, characterized by, comprises: a fan assembly comprising a fan and a housing, the fan being provided with an air inlet end, the housing being provided with an air duct, and the air duct being in communication with the air inlet end of the fan; and the purification device for the fresh air conditioning system according to any one of claims 1 to 8 is mounted in the air duct, and the purification device is arranged corresponding to the air inlet end.

10. The fresh air conditioning system according to claim 9, wherein the air duct is provided with a slot corresponding to the air inlet end; wherein the purification device can be inserted into the slot.

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