Filter screen mounting structure, fresh air module and air conditioner

Abstract

The utility model discloses a filter screen mounting structure, a fresh air module and an air conditioner. The filter screen mounting structure comprises an air guide ring which comprises an air guide ring body and a fixing frame connected with the air guide ring body, the air guide ring body is provided with an air inlet, the fixing frame is vertically arranged on the air guide ring body, and the air guide ring is provided with an air inlet; the supporting frame is arranged in the circumferential direction of the air inlet and located on the radial outer side of the air inlet, and the supporting frame is clamped to the air guide ring fixing frame and located on the radial outer side of the air inlet; and the purification filter screen is mounted on the support frame and is arranged to filter and purify the airflow flowing through the purification filter screen. According to the scheme, the purification filter screen can be firstly installed on the supporting frame to form a module, then the supporting frame is connected to the fixing frame of the air guide ring in a clamped mode, fixing of the purification filter screen is achieved, fixing of the purification filter screen can be more reliable, the purification filter screen is not prone to falling off, and the use reliability of the fresh air module can be improved.

Description

Technical Field

[0001] The present application relates to, but is not limited to, the technical field of air conditioners. More specifically, it relates to a filter installation structure, a fresh air module, and an air conditioner. Background Art

[0002] In the related art, the purification filter of the fresh air module is directly installed on the air guide ring, and the fixation is not reliable enough, and it is easy to fall off, which affects the normal use of the fresh air module. Summary of the Utility Model

[0003] The technical problem to be solved by the present application is to provide a filter installation structure, a fresh air module, and an air conditioner, which can improve the fixation reliability of the purification filter, reduce the risk of the purification filter falling off, and thus contribute to improving the use reliability of the fresh air module.

[0004] An embodiment of the present application provides a filter installation structure, including: an air guide ring, including an air guide ring main body and a fixing frame connected to the air guide ring main body, the air guide ring main body is provided with an air inlet, and the fixing frame stands on the air guide ring main body; a support frame, arranged along the circumference of the air inlet and located radially outside the air inlet, the support frame is snap-fitted to the fixing frame; and a purification filter, installed on the support frame and configured to filter and purify the air flow passing through the purification filter.

[0005] For the filter installation structure provided by the embodiment of the present application, the purification filter can be first installed on the support frame to form a module, and then the support frame is snap-fitted to the fixing frame of the air guide ring to realize the fixation of the purification filter. Compared with directly snap-fitting the purification filter on the air guide ring, the purification filter in this solution is indirectly fixed to the fixing frame of the air guide ring through the support frame. On the one hand, the support frame can provide effective support for the purification filter, and on the other hand, the support frame is not a soft structure, and the snap-fitting fixation with the fixing frame of the air guide ring is relatively firm. Moreover, the support frame and the fixing frame form a double-layer support structure, which can play a reliable role in supporting and fixing the purification filter.

[0006] Therefore, for the filter installation structure provided by the embodiment of the present application, the fixation of the purification filter is more reliable, not easy to fall off, and is conducive to improving the use reliability of the fresh air module.

[0007] Based on the above technical solutions, the present application can be further improved as follows.

[0008] In an exemplary embodiment, a snap-fitting portion is provided at one circumferential end of the support frame, and a positioning portion is provided at the other circumferential end of the support frame; a snap-fitting cooperation portion is provided at one circumferential end of the fixing frame, and a positioning cooperation portion is provided at the other circumferential end of the fixing frame; the positioning portion is in positioning cooperation with the positioning cooperation portion, and the snap-fitting portion is in snap-fitting cooperation with the snap-fitting cooperation portion.

[0009] In an exemplary embodiment, the clamping portion includes a buckle, the clamping and mating portion includes a clamping groove, and the buckle is detachably clamped in the clamping groove; the positioning portion includes a positioning protrusion, the positioning and mating portion includes a positioning groove, and the positioning protrusion is inserted into the positioning groove.

[0010] In an exemplary embodiment, the support frame is an arc-shaped bracket, and first and second stop portions are respectively provided at two circumferential ends of the support frame, and first and second baffles are respectively provided at two circumferential ends of the fixed frame; the first and second stop portions are located between the first and second baffles and are respectively in abutting cooperation with the first and second baffles.

[0011] In an exemplary embodiment, the clamping portion further includes a connecting plate connected to the first stop portion and an extension plate connected to the connecting plate. The connecting plate extends circumferentially along the air inlet and crosses the first baffle, the extension plate bends and extends in a direction away from the air inlet, and the buckle protrudes from the extension plate; one end of the first baffle close to the connecting plate is bent to form the clamping groove.

[0012] In an exemplary embodiment, the support frame includes a first support arm arranged along the axial direction of the air inlet. The first support arm is located radially outside the purification filter screen and is configured to support the purification filter screen; and / or, the fixed frame includes a second support arm arranged along the axial direction of the air inlet. The second support arm is located radially outside the support frame and is configured to support the support frame.

[0013] In an exemplary embodiment, the purification filter screen is arranged as an arc-shaped filter screen, and first and second limiting protrusions are respectively provided at two circumferential ends of the support frame. The first and second limiting protrusions are configured to respectively abut against two circumferential ends of the purification filter screen to limit the circumferential rotation of the purification filter screen relative to the support frame.

[0014] In an exemplary embodiment, barbs are provided at the radially inner ends of the first limiting protrusion and / or the second limiting protrusion. The barbs are located radially inside the purification filter screen and are configured to limit the radial movement of the purification filter screen relative to the support frame.

[0015] In an exemplary embodiment, third and fourth limiting protrusions are respectively provided at two axial ends of the support frame. The third and fourth limiting protrusions are configured to respectively abut against two axial ends of the purification filter screen to limit the axial movement of the purification filter screen relative to the support frame.

[0016] In an exemplary embodiment, the support frame is provided with a primary filter screen, which is located on the upstream side of the purification filter screen and is configured to filter and purify the air flow flowing towards the purification filter screen in a counterflow manner.

[0017] The embodiment of the present application further provides a fresh air module, including: a housing; a volute, one axial end of the volute is provided with an installation opening; and the filter screen installation structure as described in any one of the above embodiments, the air guide ring is sleeved at the installation opening and encloses the air inlet communicating with the installation opening.

[0018] The embodiment of the present application further provides an air conditioner, including: an air conditioner main body; and the fresh air module as described in the above embodiment, which is connected to the air conditioner main body.

[0019] Other features and advantages of the present utility model will be described in the subsequent description, and part of them will become obvious from the description, or be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures specifically pointed out in the description and the drawings. Description of the Drawings

[0020] The drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the description. They are used together with the embodiments of the present application to explain the technical solutions of the present application, and do not constitute a limitation to the technical solutions of the present application.

[0021] Figure 1 A partial three-dimensional structural schematic diagram of the fresh air module provided for some embodiments of the present application;

[0022] Figure 2 Another partial three-dimensional structural schematic diagram of the fresh air module provided for some embodiments of the present application;

[0023] Figure 3 Another partial three-dimensional structural schematic diagram of the fresh air module provided for some embodiments of the present application;

[0024] Figure 4 A structural schematic diagram of the filter screen installation structure (removing the purification filter screen) provided for some embodiments of the present application.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1 air guide ring, 11 air guide ring main body, 111 air inlet, 12 fixing frame, 121 card slot, 122 positioning groove, 123 first baffle, 124 second baffle, 125 second support arm;

[0027] 2 Support frame, 21 Clamping part, 211 Buckle, 212 Connecting plate, 213 Extension plate, 22 Positioning part, 221 Positioning protrusion, 23 First stop part, 24 Second stop part, 25 First support arm, 261 First limit protrusion, 262 Second limit protrusion, 263 Barbs, 271 Third limit protrusion, 272 Fourth limit protrusion;

[0028] 3 Purification filter;

[0029] 4 Volute, 41 Switching port;

[0030] 5 Housing, 51 Side enclosure panel, 511 Fresh air inlet, 512 Fresh air outlet, 52 Bottom plate, 53 Cover plate. Detailed implementation manner

[0031] The principles and features of the present application will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0032] In the related art, the purification filter is directly clamped on the air guide ring. Since the purification filter is a soft structure, it is prone to deformation and is easily affected by air flow impact in the working environment, so it is prone to falling off.

[0033] For this reason, the embodiment of the present application provides a filter installation structure, including: an air guide ring 1, a support frame 2 and a purification filter 3, as Figures 1 to 4 shown.

[0034] As Figure 4 shown, the air guide ring 1 is provided with an air inlet 111. The support frame 2 is arranged along the circumference of the air inlet 111. The support frame 2 is clamped to the air guide ring 1 and is located radially outside the air inlet 111. The purification filter 3 is installed on the support frame 2 and is configured to filter and purify the air flow passing through the purification filter 3.

[0035] Among them, the air guide ring 1 includes an air guide ring main body 11 and a fixing frame 12 connected to the air guide ring main body 11. The air guide ring main body 11 is provided with an air inlet 111, and the fixing frame 12 is erected on the air guide ring main body 11. The support frame 2 is clamped to the fixing frame 12. The setting of the fixing frame 12 can play a supporting role and a limiting role on the support frame 2, which is beneficial to further improve the fixing reliability of the purification filter 3.

[0036] The filter screen installation structure provided by the embodiments of the present application can first install the purification filter screen 3 on the support frame 2 to form a module, and then snap the support frame 2 onto the fixing frame 12 of the air guide ring 1 to realize the fixation of the purification filter screen 3. Compared with directly snapping the purification filter screen 3 onto the air guide ring 1, the purification filter screen 3 in this solution is indirectly fixed on the fixing frame 12 of the air guide ring 1 through the support frame 2. On the one hand, the support frame 2 can provide effective support for the purification filter screen 3, and on the other hand, the support frame 2 is not a soft structure, and the snap connection with the air guide ring 1 is relatively firm. Moreover, the support frame 2 and the fixing frame 12 form a double-layer support structure, which can play a reliable role in supporting and fixing the purification filter screen 3. Therefore, the filter screen installation structure provided by the embodiments of the present application makes the fixation of the purification filter screen 3 more reliable, not easily falling off, and is conducive to improving the use reliability of the fresh air module.

[0037] In some exemplary embodiments, as Figure 1 shown, a snap connection portion 21 is provided at one circumferential end of the support frame 2, and a positioning portion 22 is provided at the other circumferential end of the support frame 2. A snap connection cooperation portion is provided at one circumferential end of the fixing frame 12, and a positioning cooperation portion is provided at the other circumferential end of the fixing frame 12. The positioning portion 22 is in positioning cooperation with the positioning cooperation portion, and the snap connection portion 21 is in snap connection cooperation with the snap connection cooperation portion.

[0038] During the assembly process, the one circumferential end of the support frame 2 can be first in positioning cooperation with the one circumferential end of the fixing frame 12, and then the other circumferential end of the support frame 2 can be in snap connection cooperation with the other circumferential end of the fixing frame 12, so as to realize the assembly and fixation of the support frame 2 and the fixing frame 12. The assembly process is simple and fast, which is conducive to improving the assembly efficiency.

[0039] During the disassembly process, the snap connection fixation between the other circumferential end of the support frame 2 and the other circumferential end of the fixing frame 12 can be first released, and then the positioning cooperation between the one circumferential end of the support frame 2 and the one circumferential end of the fixing frame 12 can be released, so that the support frame 2 can be taken off from the fixing frame 12. Furthermore, operations such as cleaning and replacement of the purification filter screen 3 and the support frame 2 can be performed.

[0040] In some exemplary embodiments, as Figure 4 shown, the snap connection portion 21 includes a buckle 211, and the snap connection cooperation portion includes a clamping groove 121. The buckle 211 is detachably clamped in the clamping groove 121.

[0041] As Figure 3 and Figure 4 shown, the positioning portion 22 includes a positioning protrusion 221, and the positioning cooperation portion includes a positioning groove 122. The positioning protrusion 221 is inserted into the positioning groove 122.

[0042] As for the specific shapes and quantities of the buckle 211 and the card slot 121, there are no restrictions, as long as the clamping and fixing of the support frame 2 and the fixing frame 12 can be realized. Similarly, the specific shapes and quantities of the positioning protrusion 221 and the positioning groove 122 are also not restricted, as long as the positioning cooperation between the support frame 2 and the fixing frame 12 can be realized.

[0043] In some exemplary embodiments, such as Figure 4 As shown, the support frame 2 is an arc-shaped support frame, and a first stop portion 23 and a second stop portion 24 are respectively provided at two circumferential ends of the support frame 2. First baffles 123 and second baffles 124 are respectively provided at two circumferential ends of the fixing frame 12. The first stop portion 23 and the second stop portion 24 are located between the first baffle 123 and the second baffle 124, and are respectively in abutting cooperation with the first baffle 123 and the second baffle 124.

[0044] Adapting to the arc-shaped support frame 2, the fixing frame 12 is also an arc-shaped support frame. In order to improve the fixing reliability of the purification filter screen 3 and prevent the support frame 2 from moving circumferentially along the air guide ring 1, first baffles 123 and second baffles 124 are provided at two circumferential ends of the fixing frame 12. Under the limiting action of the first baffle 123 and the second baffle 124, the support frame 2 can be restricted between the first baffle 123 and the second baffle 124, thereby preventing the support frame 2 from moving circumferentially along the air guide ring 1, and thus improving the circumferential stability of the purification filter screen 3.

[0045] As for the specific shapes of the first stop portion 23, the second stop portion 24, the first baffle 123, and the second baffle 124, there are no restrictions, as long as the abutting cooperation can be realized to ensure the position stability of the support frame 2.

[0046] In some exemplary embodiments, such as Figure 4 As shown, the clamping portion 21 further includes a connecting plate 212 connected to the first stop portion 23 and an extension plate 213 connected to the connecting plate 212. The connecting plate 212 extends circumferentially along the air inlet 111 and crosses over the first baffle 123, and the extension plate 213 bends and extends in a direction away from the air inlet 111. The buckle 211 protrudes from the extension plate 213. One end of the first baffle 123 close to the connecting plate 212 is bent to form a card slot 121.

[0047] In this way, the cooperation between the buckle 211 and the card slot 121 is located outside the first baffle 123, which is convenient for the operator to realize the cooperation or separation between the buckle 211 and the card slot 121 by pushing and pulling the extension plate 213, thereby facilitating the disassembly and assembly of the support frame 2.

[0048] Of course, the structural forms of the buckle 211 and the card slot 121 are not limited to this and can be adjusted as needed.

[0049] In some exemplary embodiments, such asFigure 2 and Figure 4 As shown in Figure 4 , the support frame 2 includes a first support arm 25 arranged along the axial direction of the air inlet 111. The first support arm 25 is located radially outside the purification filter 3 and is configured to support the purification filter 3.

[0050] The first support arm 25 can not only support the purification filter 3, but also strengthen the support frame 2, which is beneficial to improving the reliability of use of the support frame 2. The number of the first support arms 25 can be multiple, and the multiple first support arms 25 are arranged at intervals along the circumferential direction of the air guide ring 1.

[0051] In some exemplary embodiments, as Figure 2 and Figure 4 shown, the fixing frame 12 includes a second support arm 125 arranged along the axial direction of the air inlet 111. The second support arm 125 is located radially outside the support frame 2 and is configured to support the support frame 2.

[0052] The second support arm 125 can not only support the support frame 2, but also strengthen the fixing frame 12, which is beneficial to improving the reliability of use of the fixing frame 12. The number of the second support arms 125 can be multiple, and the multiple second support arms 125 are arranged at intervals along the circumferential direction of the air guide ring 1.

[0053] The second support arm 125 can be arranged in one-to-one correspondence with the first support arm 25, as Figure 2 and Figure 4 shown.

[0054] In some exemplary embodiments, as Figures 1 to 3 shown, the purification filter 3 is arranged as an arc-shaped filter. First limiting protrusions 261 and second limiting protrusions 262 are respectively arranged at two circumferential ends of the support frame 2, as Figure 4 shown. The first limiting protrusions 261 and the second limiting protrusions 262 are configured to respectively abut against two circumferential ends of the purification filter 3 to limit the circumferential rotation of the purification filter 3 relative to the support frame 2.

[0055] Compared with the annular filter, the arc-shaped filter has a lower cost. Adapted to the arc-shaped filter, the support frame 2 and the fixing frame 12 are also arc-shaped brackets. In order to improve the fixing reliability of the purification filter 3 and prevent the purification filter 3 from moving circumferentially relative to the support frame 2 along the air guide ring 1, the first limiting protrusions 261 and the second limiting protrusions 262 are arranged at two circumferential ends of the support frame 2. Under the limiting action of the first limiting protrusions 261 and the second limiting protrusions 262, the purification filter 3 can be limited between the first limiting protrusions 261 and the second limiting protrusions 262, thereby preventing the purification filter 3 from moving circumferentially relative to the support frame 2 along the air guide ring 1, and thus improving the circumferential stability of the purification filter 3.

[0056] As for the specific shapes and numbers of the first limiting protrusion 261 and the second limiting protrusion 262, there are no restrictions and they can be reasonably set according to needs.

[0057] In some exemplary embodiments, barbs 263 are provided at the radially inner ends of the first limiting protrusion 261 and / or the second limiting protrusion 262. As Figure 1 and Figure 4 shown, the barbs 263 are located radially inside the purification filter screen 3 and are arranged to limit the radial movement of the purification filter screen 3 relative to the support frame 2.

[0058] In this way, the first limiting protrusion 261 / second limiting protrusion 262 is generally L-shaped, which can not only prevent the purification filter screen 3 from circumferentially moving relative to the support frame 2, but also prevent the purification filter screen 3 from radially moving relative to the support frame 2, thus being beneficial to improving the position stability of the purification filter screen 3 during use.

[0059] In some exemplary embodiments, as Figure 4 shown, third limiting protrusions 271 and fourth limiting protrusions 272 are respectively provided at both axial ends of the support frame 2. The third limiting protrusions 271 and the fourth limiting protrusions 272 are arranged to respectively abut against both axial ends of the purification filter screen 3 to limit the axial movement of the purification filter screen 3 relative to the support frame 2.

[0060] This can effectively prevent the purification filter screen 3 from axially moving relative to the support frame 2, thus being beneficial to improving the position stability of the purification filter screen 3 during use.

[0061] As for the specific shapes and numbers of the third limiting protrusion 271 and the fourth limiting protrusion 272, there are no restrictions and they can be reasonably set according to needs.

[0062] In one embodiment, as Figure 4 shown, the numbers of the first limiting protrusion 261 and the second limiting protrusion 262 are both one, and they are in an L-shaped plate structure. The numbers of the third limiting protrusion 271 and the fourth limiting protrusion 272 are both multiple, and they are in a flat plate structure. Moreover, the radial widths of the third limiting protrusion 271 and the fourth limiting protrusion 272 are smaller than the radial thickness of the purification filter screen 3, which is beneficial to reducing the disassembly and assembly difficulty of the purification filter screen 3 while playing a limiting role.

[0063] In some exemplary embodiments, the support frame 2 is provided with a primary filter (not shown in the figure). The primary filter is located on the upstream side of the purification filter screen 3 and is arranged to filter and purify the air flow flowing towards the purification filter screen 3.

[0064] This is beneficial to improving the cleanliness of the air flow flowing to the purification filter screen 3, filtering out a part of the impurities in the air, thereby being beneficial to improving the service life of the purification filter screen 3, extending the replacement cycle of the purification filter screen 3, and further being beneficial to saving the user's usage cost. Moreover, dual filtration is also beneficial to improving the air quality output by the fresh air module.

[0065] Among them, the primary filter screen can be fixed on the support frame 2 in a mesh structure, and the primary filter screen can be cleaned by disassembling the support frame 2 for long-term use. The purification filter screen 3 can be a HEPA filter screen and is replaced after reaching the life cycle.

[0066] Such as Figures 1 to 3 As shown, the embodiment of the present application also provides a fresh air module, including: a housing 5, a volute 4, and a filter screen installation structure as described in any one of the above embodiments.

[0067] Among them, an installation opening is provided at one axial end of the volute 4. The guide air ring 1 of the filter screen installation structure is sleeved at the installation opening and encloses an air inlet 111 communicated with the installation opening.

[0068] The fresh air module provided by the embodiment of the present application includes the filter screen installation structure as described in any one of the above embodiments, and thus has all the above beneficial effects, which will not be elaborated here.

[0069] In some exemplary embodiments, such as Figure 1 As shown, the housing 5 can be provided with a fresh air inlet 511, a fresh air outlet 512 and other structures. The fresh air inlet 511 is communicated with the air inlet 111. Along the flow direction of the fresh air, the purification filter screen 3 is located between the fresh air inlet 511 and the air inlet 111.

[0070] In some exemplary embodiments, such as Figure 3 As shown, the housing 5 includes a bottom plate 52, a side enclosure 51 and a cover plate 53 ( Figure 3 Only a part is shown), the bottom plate 52 and the cover plate 53 are relatively spaced apart and connected to the side enclosure 51. The cover plate 53 is relatively spaced apart from the air inlet 111 of the volute 4 assembly. The side enclosure 51 is provided with a fresh air inlet 511 and a fresh air outlet 512, the cover plate 53 is provided with an exhaust air inlet (not shown in the figure), and the volute 4 is provided with an openable and closable switching port 41 (such as Figure 1 As shown) and an openable and closable exhaust air outlet (not shown in the figure). The fresh air inlet 511 is arranged to be able to communicate with the air inlet 111 through the switching port 41. The fresh air inlet 511 is arranged to be able to communicate with the switching port 41 and the exhaust air outlet alternatively to switch the air flow direction of the fresh air inlet 511. At the fresh air inlet 511, the fresh air outlet 512, the exhaust air inlet, the exhaust air outlet and the switching port 41, air valves can be respectively provided to control the opening and closing.

[0071] Based on the fresh air inlet 511 being connected to the switching port 41, the fresh air inlet 511, the switching port 41, the air inlet 111, and the fresh air outlet 512 are sequentially connected to form a fresh air duct.

[0072] Based on the fresh air inlet 511 being connected to the exhaust air outlet, the exhaust air inlet, the air inlet 111, the exhaust air outlet, and the fresh air inlet 511 are sequentially connected to form an exhaust air duct.

[0073] In this way, the fresh air module not only has a fresh air duct but also has an exhaust air duct. The fresh air duct can be used to discharge outdoor fresh air into the indoor space, and the exhaust air duct can discharge indoor dirty air to the outdoor space, which is beneficial to enriching the functions of the fresh air module, enabling the fresh air module to have both a fresh air mode and an exhaust air mode, and both the fresh air mode and the exhaust air mode are beneficial to improving air quality. In this way, when the air quality is good, the indoor air quality can be improved through the fresh air mode; when the outdoor air quality is poor, the indoor air quality can be improved through the exhaust air mode, which is beneficial to improving the user experience of the air conditioner.

[0074] The embodiment of the present application also provides an air conditioner, including: an air conditioner main body (not shown in the figure) and the fresh air module according to any one of the above embodiments, and the fresh air module is connected to the air conditioner main body.

[0075] The air conditioner provided by the embodiment of the present application includes the fresh air module according to any one of the above embodiments, so it has all the above beneficial effects and will not be elaborated here.

[0076] In some embodiments, the air conditioner can be, but is not limited to, a duct machine. The fresh air module can be located on one side in the length direction of the duct machine main body and is connected to the duct machine main body.

[0077] Among them, Figures 1 to 3 the up and down directions are based on the state after the duct machine is recessed into the ceiling after leaving the factory. The direction towards the ground is down, and the direction towards the ceiling is up. The air guide ring 1 is on the upper side, the purification filter 3 is on the lower side, the cover plate 53 is on the lower side, and the bottom plate 52 is on the upper side. However, during the assembly process before the duct machine leaves the factory, the up and down directions can be changed. For example, the air guide ring 1 is on the lower side, the purification filter 3 is on the upper side, the bottom plate 52 is on the lower side, and the cover plate 53 is on the upper side. The purification filter 3 is installed on the support frame 2, and then the support frame 2 is installed on the fixing frame 12 of the air guide ring 1, and then the cover plate 53 is covered.

[0078] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application.

[0079] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0080] In the present application, unless otherwise clearly specified and limited, the terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0081] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0082] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0083] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A filter screen installation structure, characterized in that, Comprising: An air guide ring, including an air guide ring main body and a fixing frame connected to the air guide ring main body. The air guide ring main body is provided with an air inlet, and the fixing frame stands on the air guide ring main body; A support frame, arranged along the circumference of the air inlet and located radially outside the air inlet. The support frame is snap-fitted to the fixing frame; and A purification filter screen, installed on the support frame and configured to filter and purify the air flow passing through the purification filter screen.

2. The filter screen mounting structure according to claim 1, wherein A snap-fitting portion is provided at one circumferential end of the support frame, and a positioning portion is provided at the other circumferential end of the support frame; a snap-fitting cooperation portion is provided at one circumferential end of the fixing frame, and a positioning cooperation portion is provided at the other circumferential end of the fixing frame; The positioning portion is in positioning cooperation with the positioning cooperation portion, and the snap-fitting portion is in snap-fitting cooperation with the snap-fitting cooperation portion.

3. The filter screen mounting structure according to claim 2, wherein, The snap-fitting portion includes a snap, and the snap-fitting cooperation portion includes a card slot, and the snap is detachably snapped in the card slot; The positioning portion includes a positioning protrusion, and the positioning cooperation portion includes a positioning groove, and the positioning protrusion is inserted into the positioning groove.

4. The filter screen mounting structure according to claim 3, characterized in that The support frame is an arc-shaped support frame. First stop portions and second stop portions are respectively provided at the two circumferential ends of the support frame, and first baffle plates and second baffle plates are respectively provided at the two circumferential ends of the fixing frame; the first stop portion and the second stop portion are located between the first baffle plate and the second baffle plate and are respectively in stop cooperation with the first baffle plate and the second baffle plate.

5. The filter screen mounting structure according to claim 4, characterized in that, The snap-fitting portion further includes a connecting plate connected to the first stop portion and an extension plate connected to the connecting plate. The connecting plate extends along the circumference of the air inlet and extends beyond the first baffle plate, and the extension plate bends and extends in a direction away from the air inlet, and the snap protrudes from the extension plate; One end of the first baffle plate close to the connecting plate is bent to form the card slot.

6. The filter screen mounting structure according to any one of claims 1 to 5, characterized in that, The support frame includes a first support arm arranged along the axis of the air inlet. The first support arm is located radially outside the purification filter screen and is configured to support the purification filter screen; and / or The fixing frame includes a second support arm arranged along the axis of the air inlet. The second support arm is located radially outside the support frame and is configured to support the support frame.

7. The filter screen mounting structure according to any one of claims 1 to 5, characterized in that The purification filter screen is configured as an arc-shaped filter screen. First limiting protrusions and second limiting protrusions are respectively provided at the two circumferential ends of the support frame, and the first limiting protrusion and the second limiting protrusion are configured to respectively abut against the two circumferential ends of the purification filter screen to limit the circumferential rotation of the purification filter screen relative to the support frame.

8. The filter screen mounting structure according to claim 7, characterized in that, Barbs are provided at the radially inner ends of the first limiting protrusion and / or the second limiting protrusion. The barbs are located radially inside the purification filter screen and are configured to limit the radial movement of the purification filter screen relative to the support frame.

9. The filter screen mounting structure according to any one of claims 1 to 5, characterized in that, Third limiting protrusions and fourth limiting protrusions are respectively provided at the two axial ends of the support frame, and the third limiting protrusion and the fourth limiting protrusion are configured to respectively abut against the two axial ends of the purification filter screen to limit the axial movement of the purification filter screen relative to the support frame.

10. The filter screen mounting structure according to any one of claims 1 to 5, characterized in that, The support frame is provided with a primary filter screen. The primary filter screen is located on the upstream side of the purification filter screen and is configured to filter and purify the air flow flowing towards the purification filter screen.

11. A fresh air module, characterized in that, Comprising: A housing; A volute, an installation opening being provided at one axial end of the volute; And The filter screen installation structure according to any one of claims 1 to 10, wherein the air guide ring is sleeved at the installation opening and encloses the air inlet communicating with the installation opening.

12. An air conditioner, characterized in that, Comprising: An air conditioner main body; And The fresh air module according to claim 11, which is connected to the air conditioner main body.

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