Filter screen assembly, duct type air conditioner and air conditioner

Abstract

The embodiment of the utility model provides a filter screen assembly, a duct type air conditioner and an air conditioner, and the filter screen assembly comprises a screen frame and a plurality of first filter screens; the screen frame is of an integrally-formed structure. The screen frame comprises a frame body with an air passing opening, and the air passing opening penetrates through the frame body in the first direction of the frame body. The first filter screens are detachably arranged at the air passing opening and are arranged side by side in the second direction of the frame body, and the second direction intersects with the first direction. According to the filter screen assembly, the production cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a filter assembly, an air duct unit and an air conditioner. Background Art

[0002] In order to meet the user's requirements for indoor air, the return air outlet of the duct air conditioner is generally equipped with multiple filters, which are installed in the filter frame to filter out pollutants such as dust and formaldehyde in the indoor air.

[0003] However, in the related art, the assembly of the filter frame is complicated and the production cost is high. Utility Model Content

[0004] In view of this, the embodiments of the present application hope to provide a filter assembly, a duct machine and an air conditioner that can reduce production costs.

[0005] To achieve the above object, an embodiment of the present application provides a filter assembly, including:

[0006] A screen frame, wherein the screen frame is an integrally formed structure; the screen frame comprises a frame body having an air outlet, wherein the air outlet penetrates the frame body along a first direction of the frame body;

[0007] A plurality of first filters are detachably disposed at the air outlet and arranged side by side along a second direction of the frame, wherein the second direction intersects with the first direction.

[0008] In one embodiment, the plurality of first filters include at least one of a formaldehyde filter, a toluene filter, and a high efficiency particulate filter.

[0009] In one embodiment, the screen frame includes a clamping structure correspondingly clamped with each of the first filter screens, and the clamping structure is arranged on the frame body and located around the air outlet.

[0010] In one embodiment, the side of the frame close to the air outlet has a convex edge protruding toward the inside of the air outlet, and the snap-fit ​​structure is an elastic snap buckle. The elastic snap buckle is located on one side of the convex edge along the first direction, and a snap-fit ​​groove is formed between the elastic snap buckle and the convex edge, and a partial structure of each of the first filters is snapped into the corresponding snap-fit ​​groove.

[0011] In one embodiment, the elastic buckle includes an elastic portion and a snap-fit ​​portion disposed on a side of the elastic portion away from the convex edge, the elastic portion is connected to the convex edge and / or the frame, and the snap-fit ​​groove is formed between the snap-fit ​​portion and the convex edge.

[0012] In one embodiment, the part of the frame body facing the elastic buckle is recessed away from the elastic buckle to form a groove, and the groove avoids the elastic buckle.

[0013] In one embodiment, the wire frame further includes support ribs, and the support ribs are arranged at the air passing opening and on one side of the plurality of first filter nets along the first direction.

[0014] In one embodiment, the wire frame has a plurality of the support ribs, and the plurality of support ribs are located upstream of the plurality of first filter nets along the air passing direction, and the support ribs are respectively arranged at the junctions of adjacent two first filter nets.

[0015] In one embodiment, the filter screen assembly further includes a second filter screen arranged at the air passing opening, and the second filter screen is located upstream of the plurality of first filter nets along the air passing direction.

[0016] In one embodiment, the second filter screen is integrally formed with the frame body.

[0017] Another embodiment of the present application provides an air duct machine, which includes a housing having an air return opening and the above-mentioned filter screen assembly, and the filter screen assembly is arranged at the air return opening.

[0018] In one embodiment, the air duct machine includes a blower housing arranged in the housing and close to the air return opening, and the distance between the first filter net and the blower housing along the first direction is 4 mm to 15 mm.

[0019] Another embodiment of the present application provides an air conditioner, which includes the above-mentioned air duct machine.

[0020] The embodiments of the present application provide a filter screen assembly, an air duct machine and an air conditioner. The wire frame of the filter screen assembly is an integrally formed structure. That is to say, the wire frame can be directly used to install a plurality of first filter nets without the need for separate assembly. Therefore, the wire frame in the embodiments of the present application omits the assembly process, thereby effectively reducing the production cost of the filter screen assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of an air duct machine provided by an embodiment of the present application;

[0022] Figure 2 is Figure 1 a schematic structural diagram of another perspective of the air duct machine shown, and the hollow thick arrow indicates the air flow path;

[0023] Figure 3 is Figure 1 a schematic structural diagram of the filter screen assembly shown;

[0024] Figure 4 is Figure 3 an exploded view of the filter screen assembly shown;

[0025] Figure 5 is Figure 4 a partial enlarged view at position A in

[0026] Figure 6 is Figure 1 a schematic structural view of the filter screen assembly shown from another perspective;

[0027] Figure 7 is Figure 1 a sectional view of the filter screen assembly shown.

[0028] Description of reference numerals:

[0029] 10. Filter screen assembly; 11. Frame; 111. Frame body; 111a. Air inlet; 111b. Groove; 1111. Flange; 112. Clamping structure; 1121. Elastic buckle; 1121a. Clamping groove; 11211. Elastic part; 11212. Clamping part; 113. Support rib; 12. First filter screen; 121. Formaldehyde filter; 122. Toluene filter; 123. High-efficiency particulate filter; 13. Second filter screen; 20. Housing; 20a. Air return port; 30. Fan volute; 40. Impeller. Detailed implementation manners

[0030] In the description of the embodiments of the present application, it should be noted that the terms "first direction" and "second direction" are based on the Figure 3 orientation or positional relationship shown, and the "air flow direction" is based on the Figure 4 orientation or positional relationship shown. These orientation terms are only for the convenience of describing the embodiments of 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 cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] The embodiments of the present application provide a filter screen assembly 10. Please refer to Figure 3 and Figure 4 , the filter screen assembly 10 includes a frame 11 and a plurality of first filter screens 12.

[0032] The frame 11 is an integrally formed structure. That is to say, the frame 11 is a processed integral structure, rather than being assembled by a plurality of components.

[0033] Exemplarily, the frame 11 can be an injection-molded integrally formed structure. That is to say, the frame 11 can be formed into an integrally formed structure through an injection molding process.

[0034] The frame 11 includes a frame body 111 having an air vent 111a, and the air vent 111a penetrates the frame body 111 along a first direction of the frame body 111. The first filter screen 12 is detachably disposed at the air vent 111a and is arranged side by side along a second direction of the frame body 111, wherein the second direction intersects the first direction.

[0035] The first filter screen 12 is detachably disposed at the air vent 111a. That is to say, the first filter screen 12 is detachably connected to the frame body 111, and the detachable connection manner between the first filter screen 12 and the frame body 111 is not limited. Exemplarily, the first filter screen 12 and the frame body 111 can be snap-connected, or the first filter screen 12 and the frame body 111 can also be fixedly connected by fasteners such as screws and bolts.

[0036] A plurality of first filter screens 12 are arranged side by side along the second direction of the frame body 111. That is to say, a plurality of first filter screens 12 are arranged in sequence in the same plane, rather than being arranged in an overlapping manner.

[0037] The number of the first filter screens 12 is not limited. Exemplarily, please refer to Figure 4 , the number of the first filter screens 12 can be three. In another embodiment, the number of the first filter screens 12 can be two, four or more than four.

[0038] The types of the first filter screens 12 are not limited. A plurality of first filter screens 12 can be of the same type of filter screen, or a combination of different types of filter screens.

[0039] Exemplarily, please refer to Figure 3 , a plurality of first filter screens 12 can include a formaldehyde filter screen 12a, a toluene filter screen 12b, and a high-efficiency particulate filter screen 12c.

[0040] The formaldehyde filter screen 12a is used to filter and adsorb formaldehyde in the air. The toluene filter screen 12b is used to filter and adsorb toluene in the air.

[0041] The high-efficiency particulate filter screen 12c, namely a HEPA (High-efficiency particulate arrestance) filter screen, is used to filter and adsorb fine particles including PM2.5 in the air.

[0042] In some other embodiments, a plurality of first filter screens 12 can all be formaldehyde filter screens 12a, or all be toluene filter screens 12b, or all be high-efficiency particulate filter screens 12c.

[0043] In some other embodiments, a plurality of first filter screens 12 can also be a combination of any two of the formaldehyde filter screen 12a, the toluene filter screen 12b, and the high-efficiency particulate filter screen 12c.

[0044] When the number of the first filters 12 is two, exemplarily, the combination modes of two first filters 12 of different types may include: the combination of a formaldehyde filter screen 12a and a toluene filter screen 12b, the combination of a formaldehyde filter screen 12a and a high-efficiency particulate filter screen 12c, the combination of a toluene filter screen 12b and a high-efficiency particulate filter screen 12c, etc.

[0045] Compared with setting the first filters 12 of the same type, setting the first filters 12 of different types can remove various different types of pollutants and has a better filtering effect.

[0046] The embodiment of the present application further provides an air duct machine. Please refer to Figure 1 and Figure 2 , the air duct machine includes a housing 20 having an air return opening 20a and the filter assembly 10 provided in any embodiment of the present application, and the filter assembly 10 is arranged at the air return opening 20a.

[0047] The air return opening 20a is an inlet for indoor air to flow back into the air duct machine.

[0048] When the air flow enters the air duct machine from the air return opening 20a, the first filter 12 can filter and adsorb pollutants in the air flow, so that the air flow output by the air duct machine is relatively clean.

[0049] The embodiment of the present application further provides an air conditioner, and the air conditioner includes the air duct machine provided in any embodiment of the present application.

[0050] It should be noted that the filter assembly 10 in the embodiment of the present application is not limited to being used in cooperation with the air duct machine. According to needs, the filter assembly 10 can be used in cooperation with any other device that needs to filter air (including but not limited to air conditioners).

[0051] In the related art, the filter frame for installing multiple filters is generally assembled by multiple extruded parts and multiple docking parts. Specifically, multiple extruded parts enclose the filter frame, and adjacent two extruded parts are connected by docking parts. At the same time, since the extruded parts also need to be fixed by screws, mounting holes for fixing the screws also need to be machined by drilling on the extruded parts. The number of parts of the filter frame is large and the assembly is relatively complex, resulting in low assembly efficiency of the filter frame and high production cost.

[0052] However, the filter assembly 10 in the embodiment of the present application sets the frame 11 into an integrally formed structure. The frame 11 can be directly used to install multiple first filters 12 without separate assembly. Therefore, the frame 11 in the embodiment of the present application omits the assembly process, thereby effectively reducing the production cost of the filter assembly 10.

[0053] In one embodiment, please refer to Figure 3, the frame 11 may include a clamping structure 112 that is respectively clamped with each first filter screen 12. The clamping structure 112 is disposed on the frame body 111 and is located on the periphery of the air passing opening 111a.

[0054] The corresponding clamping of the clamping structure 112 with each first filter screen 12 means that each first filter screen 12 may be respectively provided with one or more clamping structures 112, and each first filter screen 12 is respectively clamped with the corresponding clamping structure 112.

[0055] To ensure the stability of the connection between the first filter screen 12 and the frame 11, each first filter screen 12 may be provided with at least two clamping structures 112, and the two clamping structures 112 are respectively located on opposite sides of the air passing opening 111a.

[0056] Each first filter screen 12 can be quickly disassembled and assembled by being clamped with the corresponding clamping structure 112.

[0057] Exemplarily, please refer to Figure 4 and Figure 7 , one side of the frame body 111 close to the air passing opening 111a may have a convex edge 1111 protruding into the interior of the air passing opening 111a. The clamping structure 112 may be an elastic buckle 1121. The elastic buckle 1121 is located on one side of the convex edge 1111 along the first direction, and a clamping groove 1121a is formed between the elastic buckle 1121 and the convex edge 1111. A partial structure of each first filter screen 12 is snapped into the corresponding clamping groove 1121a.

[0058] That is to say, the first filter screen 12 can be snapped into the clamping groove 1121a from one side of the elastic buckle 1121, so that the convex edge 1111 and the elastic buckle 1121 cooperate to limit the displacement of the first filter screen 12 along the first direction.

[0059] Please continue to refer to Figure 5 , the elastic buckle 1121 may include an elastic part 11211 and a clamping part 11212 disposed on a side of the elastic part 11211 facing away from the convex edge 1111. Figure 5 As shown, the elastic part 11211 is connected to the convex edge 1111. In some other embodiments, the elastic part 11211 may also be connected to the frame body 111, or the elastic part 11211 may also be respectively connected to the convex edge 1111 and the frame body 111. A clamping groove 1121a is formed between the clamping part 11212 and the convex edge 1111.

[0060] The first filter screen 12 is snapped into the clamping groove 1121a by causing the elastic part 11211 to undergo elastic deformation under the action of an extrusion force. After the first filter screen 12 is snapped into the clamping groove 1121a, the clamping part 11212 can exert a certain acting force on the first filter screen 12 to play a better fixing role.

[0061] Exemplarily, please refer toFigure 5 and Figure 7 At the part of the frame body 111 facing the elastic buckle 1121, it can be recessed away from the elastic buckle 1121 to form a groove 111b, and the groove 111b avoids the elastic buckle 1121.

[0062] When the first filter screen 12 is snapped into the snap groove 1121a, the elastic part 11211 undergoes elastic deformation, so that the snap part 11212 moves away from the air inlet 111a. By providing the groove 111b to avoid the elastic buckle 1121, the elastic buckle 1121 can have a relatively sufficient space for deformation, thereby facilitating the snapping of the first filter screen 12 into the snap groove 1121a.

[0063] In one embodiment, please refer to Figure 4 、 Figure 6 and Figure 7 The wire frame 11 can also be provided with support ribs 113. The support ribs 113 are arranged at the air inlet 111a and are located on one side of the plurality of first filter screens 12 along the first direction.

[0064] The support ribs 113 being arranged at the air inlet 111a means that the opposite ends of the support ribs 113 are respectively connected to the frame body 111.

[0065] Since the wire frame 11 is an integrally formed structure, therefore, the support ribs 113 are actually also integrally formed with the frame body 111.

[0066] The support ribs 113 can enhance the structural stability of the wire frame 11 and reduce the probability of deformation of the wire frame 11. At the same time, by arranging the support ribs 113 on one side of the plurality of first filter screens 12 along the first direction, the first filter screens 12 can also be limited and supported to prevent the first filter screens 12 from falling off the wire frame 11.

[0067] The number of the support ribs 113 can be one or more. When the number of the support ribs 113 is multiple, the multiple support ribs 113 can be arranged at intervals in the same direction, and the multiple support ribs 113 can also be arranged in different directions. For example, the multiple support ribs 113 can be arranged in a grid pattern.

[0068] Exemplarily, please refer to Figure 6 , Figure 6 The number of the support ribs 113 in

[0069] Please refer to Figure 4 、 Figure 6 and Figure 7, the support ribs 113 can be located upstream of the plurality of first filters 12 in the air flow direction. That is to say, when the filter assembly 10 is installed at the air return opening 20a of the air duct machine, the support ribs 113 are located outside the first filters 12.

[0070] Please continue to refer to Figure 4 , Figure 6 and Figure 7 , support ribs 113 can be respectively arranged at the junctions of two adjacent first filters 12. That is to say, support ribs 113 can be arranged at least at the junctions of two adjacent first filters 12. For example, Figure 6 among the seven support ribs 113 arranged at intervals in the first direction shown in

[0071] , two support ribs 113 are respectively located at the junctions of two adjacent first filters 12.

[0072] The support ribs 113 can be in contact with the two ends of the two first filters 12 that are close to each other. That is, one support rib 113 can support two first filters 12 at the same time. The support ribs 113 can be spaced from the two first filters 12, that is, the support ribs 113 are not in contact with any one of the first filters 12.

[0073] In some other embodiments, the support ribs 113 can also be located downstream of the plurality of first filters 12 in the air flow direction.

[0074] In one embodiment, please refer to Figure 4 , the filter assembly 10 can further include a second filter 13 arranged at the air passing opening 111a. The second filter 13 is located upstream of the plurality of first filters 12 in the air flow direction.

[0075] The purpose of arranging the second filter 13 upstream of the plurality of first filters 12 in the air flow direction is that the air flow can first pass through the second filter 13 and then through the first filters 12. That is to say, the second filter 13 can be used to preliminarily filter the air flow before the plurality of first filters 12 filter the pollutants in the air flow.

[0076] Exemplarily, the second filter 13 can be a primary filter.

[0077] The aperture of the second filter 13 can be larger than that of the first filter 12, so that the second filter 13 first filters and adsorbs large particles such as dust, hair, and pollen in the air flow, and then the first filter 12 filters small particles in the air flow.

[0078] By arranging a second filter screen 13 upstream of a plurality of first filter screens 12 in the air flow direction, the filtration pressure on the first filter screens 12 can be reduced, and the service life of the first filter screens 12 can be extended.

[0079] The connection manner between the second filter screen 13 and the housing 111 is not limited. Exemplarily, the second filter screen 13 can be integrally formed with the housing 111 to reduce the assembly steps and improve the production efficiency.

[0080] In another embodiment, the second filter screen 13 can be detachably connected to the housing 111 to facilitate the disassembly and assembly of the second filter screen 13.

[0081] In some other embodiments, the filter screen assembly 10 can also be provided with only a plurality of first filter screens 12 without the second filter screen 12.

[0082] In one embodiment, please refer to Figure 1 and Figure 2 , the air duct machine includes a blower volute 30 disposed in the housing 20, and the blower volute 30 can be disposed close to the air return opening 20a.

[0083] Please refer to Figure 1 and Figure 2 , a wind wheel 40 is disposed in the blower volute 30, and the wind wheel 40 rotates to drive the indoor air flow to enter the air duct machine from the air return opening 20a.

[0084] When the distance H between the first filter screen 12 and the blower volute 30 in the first direction is relatively large, the distance of the wind wheel 40 from the air return opening 20a is relatively far, and the efficiency of the wind wheel 40 in driving the air flow is relatively low. When the distance H between the first filter screen 12 and the blower volute 30 in the first direction is relatively small, a part of the first filter screen 12 is relatively close to the blower volute 30, thereby affecting the air return effect of the air return opening 20a, and further affecting the filtration effect of the first filter screen 12. Therefore, preferably, the distance H between the first filter screen 12 and the blower volute 30 in the first direction can be 4 mm to 15 mm (including the end point values), that is to say, a relatively suitable air return channel can be formed at the interval between the first filter screen 12 and the blower volute 30, so as to ensure both the efficiency of the wind wheel 40 in driving the air flow and prevent a part of the first filter screen 12 from being relatively close to the blower volute 30 and affecting the filtration effect.

[0085] In the description of the present application, the descriptions with reference to terms such as "in one embodiment", "in some embodiments", "in other embodiments", "in still other embodiments", or "exemplary" mean 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 embodiments of the present application. In the present application, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can 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 the different embodiments or examples described in the present application and the features of the different embodiments or examples.

[0086] The foregoing is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A filter assembly, characterized in that: include: A screen frame, wherein the screen frame is an integrally formed structure; the screen frame comprises a frame body having an air outlet, wherein the air outlet penetrates the frame body along a first direction of the frame body; A plurality of first filters are detachably disposed at the air outlet and arranged side by side along a second direction of the frame, wherein the second direction intersects with the first direction.

2. The filter assembly according to claim 1, characterized in that: The plurality of first filters include at least one of a formaldehyde filter, a toluene filter and a high efficiency particulate filter.

3. The filter assembly according to claim 1 or 2, characterized in that: The screen frame includes a clamping structure correspondingly clamped with each of the first filter screens. The clamping structure is arranged on the frame body and located at the peripheral side of the air outlet.

4. The filter assembly according to claim 3, characterized in that: The frame has a convex edge protruding toward the inside of the air outlet on one side close to the air outlet, and the snap-fit ​​structure is an elastic snap buckle, which is located on one side of the convex edge along the first direction and forms a snap-fit ​​groove between the elastic snap buckle and the convex edge, and a partial structure of each of the first filters is snapped into the corresponding snap-fit ​​groove.

5. The filter assembly according to claim 4, characterized in that: The elastic buckle comprises an elastic portion and a clamping portion arranged on a side of the elastic portion away from the convex edge, the elastic portion is connected to the convex edge and / or the frame, and the clamping groove is formed between the clamping portion and the convex edge.

6. The filter assembly according to claim 4, characterized in that: The portion of the frame body facing the elastic buckle is recessed in a direction away from the elastic buckle to form a groove, and the groove avoids the elastic buckle.

7. The filter assembly according to claim 1 or 2, characterized in that: The screen frame further includes supporting ribs, which are arranged at the air outlet and located on one side of the plurality of first filter screens along the first direction.

8. The filter assembly according to claim 7, characterized in that: The mesh frame has a plurality of the supporting ribs, the plurality of the supporting ribs are located upstream of the plurality of the first filter screens along the wind direction, and the supporting ribs are respectively arranged at the junction of two adjacent first filter screens.

9. The filter assembly according to claim 1 or 2, characterized in that: The filter assembly also includes a second filter disposed at the air outlet, wherein the second filter is located upstream of the plurality of first filters along the air flow direction.

10. The filter assembly according to claim 9, characterized in that: The second filter screen is integrally formed with the frame.

11. A duct machine, characterized in that: It comprises a shell having a return air outlet and a filter assembly according to any one of claims 1 to 10, wherein the filter assembly is arranged at the return air outlet.

12. The air duct machine according to claim 11, characterized in that: The duct air conditioner includes a fan volute disposed in the shell and close to the return air port, and the spacing between the first filter and the fan volute along the first direction is 4 mm to 15 mm.

13. An air conditioner, characterized in that: Including the air duct machine according to claim 11 or 12.

Images