Fresh air module and duct type air conditioner

Abstract

The utility model provides a fresh air module and a duct type air conditioner. The fresh air module comprises a shell, the shell comprises a bottom plate and a cover plate which are oppositely arranged in a spaced mode, and a side surrounding plate located between the bottom plate and the cover plate, and the side surrounding plate comprises a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially arranged in the circumferential direction of the bottom plate; wherein the bottom plate, the third side plate and the fourth side plate are of an integrated structure, and the first side plate and the second side plate are of an integrated structure. The bottom plate, the third side plate and the fourth side plate of the shell are arranged to be of an integrated structure and can be integrally formed; the first side plate and the second side plate are arranged to be of an integrated structure and can be integrally formed. In this way, the number of parts of the shell is effectively reduced, the assembly process between the bottom plate, the third side plate and the fourth side plate can be omitted, the assembly process between the first side plate and the second side plate can also be omitted, the assembly convenience of the shell is greatly improved, and the assembly efficiency is improved.

Description

Technical Field

[0001] The present application relates to, but is not limited to, the field of air conditioner technology, and specifically refers to a fresh air module and an air duct machine. Background Art

[0002] In the related art, the housing of the fresh air module includes a bottom plate, a cover plate and side enclosing plates. The side enclosing plates include four side plates, and the four side plates are four separate components. During assembly, it is necessary to assemble the four side plates, the bottom plate, and the cover plate together. Since there are many components and many assembly processes, the assembly is very inconvenient, resulting in low assembly efficiency. Summary of the Utility Model

[0003] The technical problem to be solved by the present application is to provide a fresh air module and an air duct machine, which reduce the number of components of the housing and are beneficial to improving the assembly efficiency.

[0004] An embodiment of the present application provides a fresh air module, including: a housing, including a bottom plate and a cover plate arranged at intervals relatively, and a side enclosing plate located between the bottom plate and the cover plate. The side enclosing plate includes a first side plate, a second side plate, a third side plate and a fourth side plate arranged in sequence along the circumference of the bottom plate; wherein, the bottom plate, the third side plate and the fourth side plate are of an integral structure, and the first side plate and the second side plate are of an integral structure.

[0005] For the fresh air module provided by the embodiment of the present application, the bottom plate, the third side plate and the fourth side plate of the housing are set into an integral structure and can be integrally formed (for example, can be an integrally formed sheet metal part); the first side plate and the second side plate are set into an integral structure and can be integrally formed (for example, can be an integrally formed sheet metal part). This effectively reduces the number of components of the housing, can not only save the assembly process between the bottom plate, the third side plate and the fourth side plate, but also save the assembly process between the first side plate and the second side plate, thus greatly improving the assembly convenience of the housing and being beneficial to improving the assembly efficiency.

[0006] On the basis of the above technical solution, the present application can also be improved as follows.

[0007] In an exemplary embodiment, the fresh air module further includes a filter screen arranged in the housing. The cover plate includes a first sub-plate, a second sub-plate and a third sub-plate which are assembled separately. The first sub-plate, the second sub-plate and the third sub-plate are arranged in sequence along the direction from the first side plate to the third side plate, and the third sub-plate is detachably connected to the second sub-plate, and the second sub-plate is rotatably connected to the first sub-plate; the filter screen is arranged to enter and exit the housing after the third sub-plate is disassembled and the second sub-plate rotates and opens relative to the first sub-plate; wherein, the first sub-plate and the first side plate are of an integral structure.

[0008] In an exemplary embodiment, one end of the first sub-board close to the second sub-board is provided with a first folding edge and a second folding edge which are sequentially connected by turning. The first folding edge is bent towards the bottom board, and the second folding edge is bent away from the first sub-board. A limiting hole is provided at the connecting part of the first folding edge and the second folding edge; one end of the second sub-board close to the first sub-board is provided with a third folding edge, and the third folding edge is provided with a tongue which is inserted into and limited in the limiting hole so that the second sub-board can rotate relative to the first sub-board.

[0009] In an exemplary embodiment, the fresh air module further includes a first heat-insulating layer, a second heat-insulating layer and a third heat-insulating layer; the first heat-insulating layer is attached to the inner board surface of the first sub-board and abuts against the first folding edge; the second heat-insulating layer is attached to the first heat-insulating layer and abuts against the second folding edge; the third heat-insulating layer is attached to the inner board surface of the second sub-board and abuts against the third folding edge and the second heat-insulating layer.

[0010] In an exemplary embodiment, the third sub-board and the side wall board are detachably connected by fasteners, and one end of the third sub-board close to the second sub-board is clamped with the second sub-board; and / or, one end of the side wall board close to the second sub-board is provided with a fourth folding edge, a fifth folding edge and a sixth folding edge which are sequentially connected by turning; the fourth folding edge is attached to the second sub-board, the fifth folding edge is bent away from the second sub-board, and the sixth folding edge is bent away from the fourth folding edge; the second sub-board and the fourth folding edge are fixedly connected by fasteners; the fresh air module further includes a fourth heat-insulating layer, a fifth heat-insulating layer and a sixth heat-insulating layer; the fourth heat-insulating layer is attached to the inner board surface of the second sub-board and abuts against the fifth folding edge and the sixth folding edge; the fifth heat-insulating layer is attached to the inner board surface of the side wall board and abuts against the fourth folding edge; the sixth heat-insulating layer is attached to the fifth heat-insulating layer and abuts against the sixth folding edge.

[0011] In an exemplary embodiment, the fresh air module further includes a volute provided in the housing. The first side board is provided with a fresh air outlet communicated with the air outlet of the volute, the second side board is provided with a fresh air inlet communicated with the air inlet of the volute, and the volute abuts against and seals the fourth side board.

[0012] In an exemplary embodiment, the fresh air module further includes a carbon dioxide sensor provided on the fourth side board.

[0013] In an exemplary embodiment, a first wire-passing notch is provided at one end of the fourth side plate close to the cover plate, and the wire body of the carbon dioxide sensor passes through the first wire-passing notch; a wire-passing rubber member is provided at the first wire-passing notch, and the wire body of the carbon dioxide sensor is fixed to the wire-passing rubber member by a buckle.

[0014] In an exemplary embodiment, the fresh air module further includes an electric control box located outside the housing and fixed to the second side plate. The second side plate is provided with a second wire-passing notch through which the wire body connected to the electric control box passes, and a wire-passing rubber member is provided at the second wire-passing notch.

[0015] In an exemplary embodiment, the fresh air module further includes a damper motor fixed to the inner side of the first side plate and a maintenance plate detachably covering the first side plate. The first side plate is provided with an avoidance notch for avoiding the damper motor, and the maintenance plate covers the avoidance notch; wherein, a first flanging is provided on the circumference of the maintenance plate; and / or, one of the maintenance plate and the first side plate is provided with a snap fastener, and the other is provided with a slot, and the snap fastener is inserted into the slot.

[0016] In an exemplary embodiment, the fresh air module further includes a connecting plate connected to the fourth side plate and configured to be connected to the air duct machine main body.

[0017] In an exemplary embodiment, one of the connecting plate and the fourth side plate is provided with a limiting protrusion, and the other is provided with a limiting notch, and the limiting protrusion is limited in the limiting notch to prevent the connecting plate from detaching from the fourth side plate.

[0018] In an exemplary embodiment, a second flanging is provided on the circumference of the connecting plate, and the second flanging is sleeved on the outside of the fourth side plate. The second flanging is provided with the limiting notch and a connection hole for installing a fastener; the connecting plate, the fourth side plate and the air duct machine main body are fixedly connected by the fastener.

[0019] The embodiment of the present application further provides an air duct machine, including: an air duct machine main body; and the fresh air module as described in any one of the above embodiments, connected to the air duct machine main body. Description of the Drawings

[0020] Figure 1 It is a partial three-dimensional structural schematic diagram of the air duct machine provided by some embodiments of the present application;

[0021] Figure 2 It is an exploded structural schematic diagram of the fresh air module provided by some embodiments of the present application;

[0022] Figure 3 is Figure 2Schematic three-dimensional structure diagram of the assembled fresh air module shown;

[0023] Figure 4 is Figure 3 Schematic three-dimensional structure diagram of a partial structure of the fresh air module shown;

[0024] Figure 5 is Figure 3 Schematic three-dimensional structure diagram of a partial structure of the fresh air module shown;

[0025] Figure 6 Schematic three-dimensional structure diagram of a partial structure of the housing provided in some embodiments of the present application;

[0026] Figure 7 Schematic three-dimensional structure diagram of the third sub-board of the fresh air module in an open state provided in some embodiments of the present application;

[0027] Figure 8 is Figure 7 Enlarged structure diagram of part A in;

[0028] Figure 9 Schematic enlarged structure diagram of a partial structure of the housing provided in some embodiments of the present application;

[0029] Figure 10 Schematic partial structure diagram of the housing provided in some embodiments of the present application;

[0030] Figure 11 is Figure 10 Cross-sectional structure diagram in the B-B direction in;

[0031] Figure 12 Schematic partial cross-sectional structure diagram of the fresh air module provided in some embodiments of the present application;

[0032] Figure 13 Schematic three-dimensional structure diagram of a partial structure of the fresh air module provided in some embodiments of the present application;

[0033] Figure 14 is Figure 13 Enlarged structure diagram of the partial;

[0034] Figure 15 Schematic three-dimensional structure diagram of the connecting plate provided in some embodiments of the present application.

[0035] In the drawings, the list of components represented by each reference numeral is as follows:

[0036] 1 Housing, 11 Bottom plate, 12 Cover plate, 121 First sub-plate, 1211 First flanging, 1212 Second flanging, 1213 Limit hole, 1214 Insertion hole, 1215 Anti-disengagement hole, 122 Second sub-plate, 1221 Third flanging, 1222 Insert tongue, 1223 Insertion part, 1224 Anti-disengagement part, 1225 Card hole, 1226 Folding plate, 123 Third sub-plate, 13 Side wall plate, 131 First side plate, 1311 Fresh air outlet, 1312 Avoidance notch, 1313 Slot, 132 Second side plate, 1321 Fresh air inlet, 1322 Second wire-passing notch, 133 Third side plate, 134 Fourth side plate, 1341 Fourth flanging, 1342 Fifth flanging, 1343 Sixth flanging, 1345 First wire-passing notch, 1346 Limit projection;

[0037] 21 Volute, 211 Contact rib, 22 Damper motor, 23 Filter screen, 24 Carbon dioxide sensor, 25 Electric control box, 26 Wire-passing rubber part, 27 Fresh air pipe joint;

[0038] 3 Maintenance plate, 31 First turned edge, 32 Snap fastener, 33 Ventilation opening;

[0039] 4 Connecting plate, 41 Second turned edge, 411 Limit notch, 412 Connecting hole;

[0040] 51 First thermal insulation layer, 511 Avoidance groove, 52 Second thermal insulation layer, 53 Third thermal insulation layer, 54 Fourth thermal insulation layer, 55 Fifth thermal insulation layer, 56 Sixth thermal insulation layer;

[0041] 100 Fresh air module, 200 Air duct machine main body. Detailed implementation mode

[0042] The principles and features of the present application will be described below with reference to the accompanying drawings. The examples given are only for explaining the present application and are not intended to limit the scope of the present application.

[0043] As Figures 1 to 15 shown, the embodiment of the present application provides a fresh air module 100 and an air duct machine. Among them, the fresh air module 100 can be used for an air duct machine or other types of air treatment equipment.

[0044] The air duct machine provided by the embodiment of the present application includes an air duct machine main body 200 and a fresh air module 100. The fresh air module 100 is connected to the air duct machine main body 200.

[0045] The air duct machine main body 200 can be an in-duct air conditioner. The in-duct air conditioner can be connected to an outdoor air duct machine. The in-duct air conditioner is concealedly installed in the ceiling, and the outdoor air duct machine is installed outdoors. The air duct machine main body 200 can also be an all-in-one machine.

[0046] The air duct machine main body 200 is provided with an air return opening, through which indoor air enters the air duct machine main body 200. The air duct machine main body 200 is also provided with an air outlet, through which the air heated and exchanged in the air duct machine main body 200 is discharged into the room. The air duct machine main body 200 is generally rectangular in shape. The air outlet of the air duct machine main body 200 can be arranged on the front side wall of the air duct machine, and the air return opening of the air duct machine main body 200 can be arranged on the bottom wall of the air duct machine.

[0047] The air duct machine is installed concealed in the suspended ceiling. An air supply opening corresponding to the air outlet of the air duct machine main body 200 is arranged on the side plate of the suspended ceiling, and an air supply grille can be arranged at the air supply opening. A return air opening corresponding to the air return opening of the air duct machine main body 200 is arranged on the bottom plate 11 of the suspended ceiling, and a return air grille can be arranged at the return air opening of the suspended ceiling. Moreover, the return air opening of the suspended ceiling is also the maintenance opening of the air duct machine (denoted as the maintenance opening), which is used for the maintenance of the air duct machine during use. During maintenance, the return air grille can be disassembled, and then the maintenance opening will be exposed, enabling the maintenance of the air duct machine.

[0048] In some embodiments, as Figure 1 shown, the fresh air module 100 is arranged on one side of the air duct machine main body 200 in the length direction (i.e., the left-right direction) and is connected to the air duct machine main body 200.

[0049] This will not increase the depth dimension of the air duct machine (i.e., the depth of the air duct machine horizontally extending into the side wall of the suspended ceiling), and enables the maintenance opening to form a long and narrow structure, which is more in line with the current mainstream decoration style.

[0050] In some exemplary embodiments, the maintenance opening is correspondingly arranged with the air return opening of the air duct machine main body 200 and the maintenance plate of the fresh air module 100 (i.e., the following third sub-plate 123), and the area of the maintenance opening is larger than the total area of the air return opening of the air duct machine main body 200 and the maintenance plate of the fresh air module 100.

[0051] In this way, when the return air grille is disassembled, the air inlet of the air duct machine main body 200 and the maintenance plate can be exposed. By opening the bottom wall where the air inlet of the air duct machine main body 200 is located (or the maintenance plate of the air duct machine main body 200), the air duct machine main body 200 can be maintained. By opening the maintenance plate of the fresh air module 100, the fresh air module 100 can be maintained. Therefore, only by setting a maintenance opening (i.e., the maintenance opening) on the suspended ceiling, the maintenance of the air duct machine main body 200 and the fresh air module 100 can be realized. Moreover, the maintenance opening can maintain a long and narrow shape, which is in line with the current mainstream decoration style and is conducive to the market promotion of the product.

[0052] After the air duct machine is assembled, the cover plate 12 of the fresh air module 100 is set downward, and the bottom plate 11 is set upward. Herein, the "set downward" and "set upward" are based on the state after the air duct machine is recessed into the ceiling. The direction towards the ground is downward, and the direction towards the ceiling is upward. The bottom plate 11 of the housing 1 of the fresh air module 100 is at the bottom, and the cover plate 12 is at the top. However, during the assembly process before the air duct machine leaves the factory, the up-and-down relationship between the bottom plate 11 and the cover plate 12 can be changed. For example: with the bottom plate 11 at the bottom, after installing internal structures such as the impeller, impeller motor, and volute 21, the cover plate 12 of the housing 1 is then covered.

[0053] In the related art, when assembling the housing 1 of the fresh air module 100, it is necessary to join together four side plates, the bottom plate 11, and the cover plate 12. Due to the large number of components and the many assembly processes, the assembly is very inconvenient, resulting in low assembly efficiency.

[0054] The fresh air module 100 provided by the embodiment of the present application includes a housing 1. As Figure 2 and Figure 3 shown, the housing 1 includes a bottom plate 11 and a cover plate 12 that are relatively spaced apart, and a side enclosure 13 located between the bottom plate 11 and the cover plate 12. The side enclosure 13 includes a first side plate 131, a second side plate 132, a third side plate 133, and a fourth side plate 134 that are sequentially arranged along the circumference of the bottom plate 11.

[0055] Among them, as Figure 2 shown, the bottom plate 11, the third side plate 133, and the fourth side plate 134 are of an integral structure, and the first side plate 131 and the second side plate 132 are of an integral structure.

[0056] For the fresh air module 100 provided by the embodiment of the present application, the bottom plate 11, the third side plate 133, and the fourth side plate 134 of the housing 1 are set to be of an integral structure and can be integrally formed (for example, it can be an integrally formed sheet metal part); the first side plate 131 and the second side plate 132 are set to be of an integral structure and can be integrally formed (for example, it can be an integrally formed sheet metal part). This effectively reduces the number of components of the housing 1, can not only eliminate the assembly processes between the bottom plate 11, the third side plate 133, and the fourth side plate 134, but also eliminate the assembly process between the first side plate 131 and the second side plate 132, thereby greatly improving the assembly convenience of the housing 1 and being beneficial to improving the assembly efficiency.

[0057] In some exemplary embodiments, the fresh air module 100 further includes a volute 21 disposed inside the housing 1, as Figure 4 shown. The first side plate 131 is provided with a fresh air outlet 1311 communicating with the air outlet of the volute 21, as Figure 8 and Figure 13 shown. The second side plate 132 is provided with a fresh air inlet 1321 communicating with the air inlet of the volute 21, asFigure 13 As shown, the fresh air outlet 1311 is usually arranged forward. Therefore, the first side plate 131 is the front side plate, and the third side plate 133 is the rear side plate. Correspondingly, the second side plate 132 can be the left side plate, and the fourth side plate 134 is the right side plate. A fresh air pipe joint 27 can be connected at the fresh air inlet 1321.

[0058] A wind wheel is provided in the volute 21. When the wind wheel rotates, outdoor fresh air flows from the fresh air inlet 1321 of the second side plate 132 to the air inlet of the volute 21, enters the volute 21 through the air inlet of the volute 21, flows to the fresh air outlet 1311 through the air outlet of the volute 21, and flows to the indoor space through the fresh air outlet 1311 of the first side plate 131.

[0059] The volute 21 abuts and seals against the fourth side plate 134, as Figure 4 shown. In this way, the fixing process between the volute 21 and the fourth side plate 134 can be omitted, which is beneficial to reducing the fasteners for fixing the volute 21, thereby facilitating the improvement of the assembly efficiency.

[0060] Among them, as Figure 4 shown, abutting ribs 211 or abutting surfaces can be provided at the front, middle, and rear parts of the right end of the volute 21 to abut and cooperate with the fourth side plate 134 to achieve sealing.

[0061] In some exemplary embodiments, as Figure 5 shown, the fresh air module 100 further includes a carbon dioxide sensor 24 provided on the fourth side plate 134.

[0062] The carbon dioxide sensor 24 can detect the indoor carbon dioxide concentration, facilitating the determination of whether it is necessary to turn on the fresh air module 100 to input fresh air into the room according to the detection result of the carbon dioxide concentration.

[0063] In some exemplary embodiments, as Figure 5 shown, a first wire passing notch 1345 is provided at one end of the fourth side plate 134 close to the cover plate 12, and the wire body of the carbon dioxide sensor 24 passes through the first wire passing notch 1345.

[0064] The setting of the first wire passing notch 1345 facilitates the wiring of the carbon dioxide sensor 24. The shape of the first wire passing notch 1345 is not limited and can be, but is not limited to, an arc shape.

[0065] In some embodiments, the fourth side plate 134 is provided with an avoidance sunken platform (not shown in the figure), and the avoidance sunken platform is recessed inwardly towards the inside of the housing 1. The carbon dioxide sensor 24 is provided at the avoidance sunken platform 1344. The first wire passing notch 1345 communicates with the avoidance notch 1345.

[0066] The provision of the avoidance sunk platform 1344 facilitates accommodating at least a part of the carbon dioxide sensor 24, avoiding the carbon dioxide sensor 24 from protruding too much, which is conducive to reducing the overall size of the fresh air module 100.

[0067] Of course, the fourth side plate may not be provided with the avoidance sunk platform.

[0068] In some exemplary embodiments, as Figure 5 shown, a wire-passing rubber member 26 is provided at the first wire-passing notch 1345, which is conducive to preventing the wire body of the carbon dioxide sensor 24 from being cut or severed, and also conducive to improving the sealing performance of the first wire-passing notch 1345.

[0069] In some exemplary embodiments, the wire body of the carbon dioxide sensor 24 is fixed to the wire-passing rubber member 26 by a buckle, which is conducive to improving the wiring efficiency.

[0070] In some exemplary embodiments, as Figure 4 shown, the fresh air module 100 further includes a filter screen 23 disposed in the housing 1. A flow guiding ring may be provided at the air inlet of the volute 21, and the filter screen 23 may be clamped between the flow guiding ring and the cover plate 12. The filter screen 23 is located between the fresh air inlet 1321 and the fresh air outlet 1311 and is configured to filter the fresh air.

[0071] As Figure 2 、 Figure 7 and Figure 10 shown, the cover plate 12 includes a first sub-plate 121, a second sub-plate 122 and a third sub-plate 123 which are assembled separately. The first sub-plate 121, the second sub-plate 122 and the third sub-plate 123 are arranged in sequence along the direction from the first side plate 131 to the third side plate 133 (i.e., the front-to-back direction), and the third sub-plate 123 is detachably connected to the second sub-plate 122. The second sub-plate 122 is rotatably connected to the first sub-plate 121. The filter screen 23 is configured to enter and exit the housing 1 after the third sub-plate 123 is disassembled and the second sub-plate 122 is rotated open relative to the first sub-plate 121.

[0072] The third sub-plate 123 may be correspondingly arranged with the inspection opening provided on the ceiling, and the projection of the third sub-plate 123 on the ceiling is within the range of the inspection opening. When the filter screen 23 needs to be replaced, the third sub-plate 123 can be disassembled, and the internal structure of the fresh air module 100 can be seen. Since the cover plate 12 of the fresh air module 100 generally does not completely adhere to the bottom wall of the ceiling, the space between the second sub-plate 122 and the ceiling can be utilized to make the second sub-plate 122 rotate downward relative to the first sub-plate 121 by gravity to open at a certain angle, which can expand the movable range of the filter screen 23, thereby reducing the difficulty of replacing the filter screen 23. Similarly, this is also convenient for the maintenance of the impeller and the impeller motor.

[0073] Among them, the first sub-board 121 and the first side board 131 are of an integral structure, as Figure 6 shown.

[0074] In the related art, the three sub-boards are three components, and the first sub-board 121 and the side wall board 13 are also independent components. In this solution, the first sub-board 121 and the first side board 131 are set as an integral structure and can be integrally formed (for example, it can be an integrally formed sheet metal part), so that the assembly process between the first sub-board 121 and the first side board 131 can be omitted, which is beneficial to improving the assembly efficiency.

[0075] In some exemplary embodiments, the third sub-board 123 and the side wall board 13 are detachably connected by fasteners, and one end of the third sub-board 123 close to the second sub-board 122 is clamped with the second sub-board 122, as Figure 7 shown.

[0076] In this way, when the fasteners fixing the third sub-board 123 are removed, the third sub-board 123 can still be connected to the second sub-board 122 by the buckle, which is beneficial to preventing the third sub-board 123 from directly falling under the action of gravity and hitting the operator.

[0077] In one example, as Figure 6 and Figure 7 shown, a clamping hole 1225 is provided in the middle of one end of the second sub-board 122 close to the third sub-board 123, and a buckle is provided in the middle of one end of the third sub-board 123 close to the second sub-board 122, and the buckle is clamped with the clamping hole 1225.

[0078] In some exemplary embodiments, as Figure 6 , Figure 9 and Figure 11 shown, a first folding edge 1211 and a second folding edge 1212 that are sequentially turned and connected are provided at one end of the first sub-board 121 close to the second sub-board 122. The first folding edge 1211 is bent towards the bottom board 11, and the second folding edge 1212 is bent away from the first sub-board 121. A limiting hole 1213 is provided at the connecting part of the first folding edge 1211 and the second folding edge 1212. A third folding edge 1221 is provided at one end of the second sub-board 122 close to the first sub-board 121. The third folding edge 1221 is provided with a tongue 1222, and the tongue 1222 is inserted and limited in the limiting hole 1213 so that the second sub-board 122 can rotate relative to the first sub-board 121.

[0079] Among them, the number of tongues 1222 can be multiple (such as two, three, four or more), and multiple tongues 1222 are arranged at intervals. The number of limiting holes 1213 can be equal to the number of tongues 1222 and correspond one by one. In one example, the number of tongues 1222 is three, and the number of limiting holes 1213 is three.

[0080] In some exemplary embodiments, the second sub-board 122 is connected to the volute 21 by fasteners.

[0081] This is beneficial to improving the stability and reliability of the second sub-board 122. A third connection hole 412 may be provided on the second sub-board 122. The fastener passes through the third connection hole 412 and is fixedly connected to the side wall plate 13. The third connection hole 412 may be provided on the side of the second sub-board 122 close to the third sub-board 123. In this way, after removing the fastener, one end of the second sub-board 122 close to the third sub-board 123 can rotate downward under the action of gravity to open, releasing the pressing constraint on the filter screen 23.

[0082] One end of the second sub-board 122 close to the third sub-board 123 may be provided with a folding plate 1226. As Figure 6 shown, the folding plate 1226 may be covered by the third sub-board 123, and a clamping hole 1225 may be provided on the folding plate 1226.

[0083] In some exemplary embodiments, as Figure 9 shown, the tongue 1222 includes an insertion portion 1223 connected to the second sub-board 122 and a retaining portion 1224 connected to the insertion portion 1223. The limiting hole 1213 includes an insertion hole 1214 and a retaining hole 1215 communicating with the insertion hole 1214.

[0084] The insertion hole 1214 is arranged for the retaining portion 1224 and the insertion portion 1223 to pass through. The retaining hole 1215 is arranged for the insertion portion 1223 to pass through and restricts the retaining portion 1224 from passing through, so as to restrict the tongue 1222 from disengaging from the limiting hole 1213.

[0085] Wherein, the area of the insertion hole 1214 is larger than the area of the retaining hole 1215. The width of the insertion portion 1223 is smaller than the width of the retaining portion 1224. The width of the insertion portion 1223 is smaller than the width of the retaining hole 1215, and the width of the retaining portion 1224 is smaller than the width of the insertion hole 1214. Therefore, the insertion portion 1223 can pass through the insertion hole 1214 and the retaining hole 1215. However, the retaining portion 1224 can only pass through the insertion hole 1214 and cannot pass through the retaining hole 1215. The width of the insertion portion 1223, the width of the retaining portion 1224, the width of the retaining hole 1215, and the width of the insertion hole 1214 refer to the width in the left-right direction.

[0086] In this way, when the tongue 1222 is assembled with the limiting hole 1213, first insert the tongue 1222 into the insertion hole 1214, and then move the tongue 1222 in the direction of the retaining hole 1215 to align the second sub-board 122 with the side wall plate 13. At this time, the retaining portion 1224 is restricted by the retaining hole 1215 and cannot pass through the retaining hole 1215 to escape, thus achieving the limiting effect.

[0087] In some embodiments, after assembly, the anti - detachment hole 1215 is located below the insertion hole 1214. The insertion tongue 1222 can automatically fall under the action of gravity, enabling the insertion portion 1223 to enter the anti - detachment hole 1215, preventing the second sub - plate 122 from being horizontally pulled out.

[0088] In some exemplary embodiments, as Figure 11 shown, the fresh - air module 100 further includes a first thermal insulation layer 51, a second thermal insulation layer 52, and a third thermal insulation layer 53. The first thermal insulation layer 51 is attached to the inner plate surface of the first sub - plate 121 and abuts against the first folded edge 1211. The second thermal insulation layer 52 is attached to the first thermal insulation layer 51 and abuts against the second folded edge 1212. The third thermal insulation layer 53 is attached to the inner plate surface of the second sub - plate 122 and abuts against the third folded edge 1221 and the second thermal insulation layer 52.

[0089] This can achieve the sealing and thermal insulation of the lower part of the side wall panel 13, which is beneficial to preventing condensation.

[0090] The first thermal insulation layer 51, the second thermal insulation layer 52, and the third thermal insulation layer 53 can be, but are not limited to, thermal insulation sponges, and the thermal insulation sponges can be fixed by pasting. The first thermal insulation layer 51 may also be provided with an avoidance groove 511 for avoiding the insertion tongue 1222 to ensure that the insertion tongue 1222 can smoothly enter and exit the limit hole 1213 during subsequent maintenance without being affected by the first thermal insulation layer 51.

[0091] In some exemplary embodiments, as Figure 12 shown, one end of the side wall panel 13 (the second side wall panel 132 and / or the fourth side wall panel 134) close to the second sub - plate 122 is provided with a fourth folded edge 1341, a fifth folded edge 1342, and a sixth folded edge 1343 that are successively bent and connected. The fourth folded edge 1341 is attached to the second sub - plate 122, the fifth folded edge 1342 is bent away from the second sub - plate 122, and the sixth folded edge 1343 is bent away from the fourth folded edge 1341. The second sub - plate 122 and the fourth folded edge 1341 are fixedly connected by fasteners. The fresh - air module 100 further includes a fourth thermal insulation layer 54, a fifth thermal insulation layer 55, and a sixth thermal insulation layer 56. The fourth thermal insulation layer 54 is attached to the inner plate surface of the second sub - plate 122 and abuts against the fifth folded edge 1342 and the sixth folded edge 1343. The fifth thermal insulation layer 55 is attached to the inner plate surface of the side wall panel 13 and abuts against the fourth folded edge 1341. The sixth thermal insulation layer 56 is attached to the fifth thermal insulation layer 55 and abuts against the sixth folded edge 1343.

[0092] In the related art, condensation is likely to occur at the fastener connection between the second sub-board 122 and the side wall panel 13, and the sponge pasted at the fastener connection is likely to cause sheet metal depression. In this solution, a Z-shaped bending edge is provided at one end of the side wall panel 13 close to the cover board 12, and the fourth heat insulation layer 54, the fifth heat insulation layer 55 and the sixth heat insulation layer 56 are correspondingly provided, which can effectively reduce the risk of condensation, and the depression at the fastener connection is prevented from occurring due to the stopping action of the fourth heat insulation layer 54.

[0093] The fourth heat insulation layer 54, the fifth heat insulation layer 55, and the sixth heat insulation layer 56 can be, but are not limited to, heat insulation sponges, and the heat insulation sponges can be fixed by pasting.

[0094] In some exemplary embodiments, such as Figure 2 , Figure 3 and as shown in FIG. 8, the fresh air module 100 further includes an electric control box 25 located outside the housing 1 and fixed to the second side plate 132. The electric control box 25 and the fresh air inlet 1321 can be arranged in the front-back direction.

[0095] As Figure 6 shown, the second side plate 132 is provided with a second wire passing notch 1322, and the wire body connected to the electric control box 25 passes through the second wire passing notch 1322.

[0096] The setting of the second wire passing notch 1322 facilitates the wiring of the electric control box 25. The shape of the second wire passing notch 1322 is not limited, and can be, but is not limited to, an arc shape. The number of the second wire passing notches 1322 can be one or multiple.

[0097] In some exemplary embodiments, a wire passing rubber part 26 is provided at the second wire passing notch 1322 to prevent wire cutting and is beneficial to improving the sealing performance of the second wire passing notch 1322.

[0098] In some exemplary embodiments, such as Figure 8 shown, the fresh air module 100 further includes a wind valve motor 22 fixed to the inner side of the first side plate 131 and a maintenance plate 3 detachably covering the first side plate 131. The wind valve motor 22 can be used to drive the wind valve to open or close the wind valves of openings such as the fresh air outlet 1311 and the fresh air inlet 1321. The wind valve motor 22 can be fixed on the volute 21.

[0099] The first side plate 131 is provided with an avoidance notch 1312 for avoiding the wind valve motor 22, and the maintenance plate 3 covers the avoidance notch 1312.

[0100] When the wind valve motor 22 needs to be repaired, by removing the maintenance plate 3, the wind valve motor 22 can be seen through the avoidance notch 1312, and then operations such as repair and replacement of the wind valve motor 22 can be performed. After the repair is completed, the maintenance plate 3 is covered to ensure the aesthetics of the fresh air module 100.

[0101] A ventilation opening 33 corresponding to and communicating with the fresh air outlet 1311 of the first side plate 131 is further provided on the first side plate 131 to ensure the normal discharge of fresh air. The avoidance notch 1312 and the fresh air outlet 1311 can be integrated.

[0102] In some exemplary embodiments, such as Figure 8 As shown, a first flanging 31 is provided circumferentially on the maintenance plate 3, which can be used for connecting an extended canvas when installing an air outlet grille for an air duct machine. The first flanging 31 and the maintenance plate 3 can be integrally formed.

[0103] In some exemplary embodiments, such as Figure 8 As shown, one of the maintenance plate 3 and the first side plate 131 is provided with a snap 32, and the other is provided with a slot 1313, and the snap 32 is inserted into the slot 1313.

[0104] In this way, the plug-in connection between the maintenance plate 3 and the first side plate 131 can be realized, which is beneficial to reducing the number of fasteners and thus improving the assembly efficiency.

[0105] In some exemplary embodiments, such as Figure 2 and Figure 13 As shown, the fresh air module 100 further includes a connecting plate 4. The connecting plate 4 is connected to the fourth side plate 134 and is arranged to be connected to the air duct machine main body 200, so as to realize the connection between the fresh air module 100 and the air duct machine main body 200 through the transition of the connecting plate 4.

[0106] In some exemplary embodiments, such as Figure 13 and Figure 14 As shown, one of the connecting plate 4 and the fourth side plate 134 is provided with a limiting protrusion 1346, and the other is provided with a limiting notch 411, and the limiting protrusion 1346 is limited in the limiting notch 411 to prevent the connecting plate 4 from detaching from the fourth side plate 134.

[0107] The cooperation between the limiting protrusion 1346 and the limiting notch 411 can realize the pre-positioning of the fourth side plate 134 and the connecting plate 4, which is convenient for the subsequent connection of the connecting plate 4 and the fourth side plate 134 through fasteners; and also realizes the limiting function, which is beneficial to improving the connection reliability between the connecting plate 4 and the fourth side plate 134.

[0108] Among them, the shapes of the limiting notch 411 and the limiting protrusion 1346 are not limited, and can be circular, dovetail, T-shaped, rectangular or special-shaped, etc.

[0109] In some exemplary embodiments, such as Figure 15As shown, a second flanging 41 is provided circumferentially on the connecting plate 4, and the second flanging 41 is sleeved on the outside of the fourth side plate 134. The second flanging 41 is provided with a limiting notch 411 and a connecting hole 412 for installing fasteners. The connecting plate 4 is fixedly connected to the fourth side plate 134 and the air duct machine main body 200 through fasteners.

[0110] Among them, the fasteners for connecting the fourth side plate 134 and the connecting plate 4 and the fasteners for connecting the air duct machine main body 200 and the connecting plate 4 can be combined into one or can be independent of each other.

[0111] The connecting plate 4 can be fixedly connected to the main body of the air duct machine through fasteners.

[0112] The connecting plate 4 can be provided with a notch for avoiding the carbon dioxide sensor 24.

[0113] As Figure 1 shown, the embodiment of the present application also provides an air duct machine, which includes an air duct machine main body 200 and the fresh air module 100 in any one of the above embodiments, and the fresh air module 100 is connected to the air duct machine main body 200.

[0114] The air duct machine provided by the embodiment of the present application includes the fresh air module 100 in any one of the above embodiments, and thus has all the above beneficial effects, which will not be elaborated here.

[0115] In the description of the present application, it should be understood that 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. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are 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 cannot be understood as a limitation to the present application.

[0116] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood 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 the features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0117] In this application, unless otherwise clearly stipulated or defined, terms such as "install", "connect", "link", "fix", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0118] In this application, unless otherwise clearly stipulated or defined, the first feature being "on" or "under" the second feature can 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 can 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", "beneath" and "underneath" the second feature can 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.

[0119] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. 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 this 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 can be combined in a suitable manner in any one or more embodiments or examples. 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.

[0120] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A fresh air module, characterized in that: include: The housing comprises a bottom plate and a cover plate which are arranged relatively spaced apart, and a side panel located between the bottom plate and the cover plate, wherein the side panel comprises a first side panel, a second side panel, a third side panel and a fourth side panel which are arranged in sequence along the circumference of the bottom plate; Wherein, the bottom plate, the third side plate and the fourth side plate are an integrated structure, and the first side plate and the second side plate are an integrated structure.

2. The fresh air module according to claim 1, characterized in that: The fresh air module further includes a filter screen arranged in the housing, the cover plate includes a first sub-plate, a second sub-plate and a third sub-plate which are assembled in a split manner, the first sub-plate, the second sub-plate and the third sub-plate are arranged in sequence along a direction from the first side plate to the third side plate, and the third sub-plate is detachably connected to the second sub-plate, and the second sub-plate is rotatably connected to the first sub-plate; the filter screen is arranged to enter and exit the housing after the third sub-plate is disassembled and the second sub-plate is rotated and opened relative to the first sub-plate; Wherein, the first sub-plate and the first side plate are an integrated structure.

3. The fresh air module according to claim 2, characterized in that: The first sub-plate is provided with a first folded edge and a second folded edge connected in sequence at one end close to the second sub-plate, the first folded edge is bent in a direction close to the bottom plate, the second folded edge is bent in a direction away from the first sub-plate, and a limiting hole is provided at a connecting portion of the first folded edge and the second folded edge; the second sub-plate is provided with a third folded edge at one end close to the first sub-plate, the third folded edge is provided with an inserting tongue, and the inserting tongue is inserted into and limited in the limiting hole, so that the second sub-plate can rotate relative to the first sub-plate.

4. The fresh air module according to claim 3, characterized in that: It also includes a first thermal insulation layer, a second thermal insulation layer and a third thermal insulation layer; the first thermal insulation layer is attached to the inner panel surface of the first sub-panel and abuts against the first folded edge; the second thermal insulation layer is attached to the first thermal insulation layer and abuts against the second folded edge; the third thermal insulation layer is attached to the inner panel surface of the second sub-panel and abuts against the third folded edge and the second thermal insulation layer.

5. The fresh air module according to claim 2, characterized in that: The third sub-plate is detachably connected to the side panel via a fastener, and one end of the third sub-plate close to the second sub-plate is snap-connected to the second sub-plate; and / or The end of the side panel close to the second sub-panel is provided with a fourth folded edge, a fifth folded edge and a sixth folded edge which are connected in sequence; the fourth folded edge is fitted with the second sub-panel, the fifth folded edge is bent in the direction away from the second sub-panel, and the sixth folded edge is bent in the direction away from the fourth folded edge; the second sub-panel is fixedly connected to the fourth folded edge by fasteners; the fresh air module also includes a fourth thermal insulation layer, a fifth thermal insulation layer and a sixth thermal insulation layer; the fourth thermal insulation layer is attached to the inner panel surface of the second sub-panel and abuts against the fifth folded edge and the sixth folded edge; the fifth thermal insulation layer is attached to the inner panel surface of the side panel and abuts against the fourth folded edge; the sixth thermal insulation layer is attached to the fifth thermal insulation layer and abuts against the sixth folded edge.

6. The fresh air module according to any one of claims 1 to 5, characterized in that: It also includes a volute arranged in the shell, the first side plate is provided with a fresh air outlet connected to the air outlet of the volute, the second side plate is provided with a fresh air inlet connected to the air inlet of the volute, and the volute is abutted and sealed with the fourth side plate.

7. The fresh air module according to claim 6, characterized in that: The fresh air module also includes a carbon dioxide sensor arranged on the fourth side plate.

8. The fresh air module according to claim 7, characterized in that: A first wire-passing notch is provided at one end of the fourth side plate close to the cover plate, and the first wire-passing notch is used for the wire of the carbon dioxide sensor to pass through; A wire-passing rubber piece is provided at the first wire-passing notch, and the wire body of the carbon dioxide sensor is fixed to the wire-passing rubber piece by a buckle.

9. The fresh air module according to any one of claims 1 to 5, characterized in that: It also includes an electric control box located outside the shell and fixed to the second side plate. The second side plate is provided with a second wire-passing notch for the wire body connected to the electric control box to pass through. A wire-passing rubber piece is provided at the second wire-passing notch.

10. The fresh air module according to any one of claims 1 to 5, characterized in that: It also includes a damper motor fixed to the inner side of the first side plate and a maintenance plate detachably covered on the first side plate, the first side plate is provided with a avoidance gap for avoiding the damper motor, and the maintenance plate covers the avoidance gap; The maintenance plate is provided with a first flange in the circumferential direction; and / or one of the maintenance plate and the first side plate is provided with a buckle, and the other is provided with a slot, and the buckle is inserted into the slot.

11. The fresh air module according to any one of claims 1 to 5, characterized in that: It also includes a connecting plate, which is connected to the fourth side plate and is configured to be connected to the air duct machine body.

12. The fresh air module according to claim 11, characterized in that: One of the connecting plate and the fourth side plate is provided with a limiting protrusion, and the other is provided with a limiting notch. The limiting protrusion is limited in the limiting notch to limit the connecting plate from being separated from the fourth side plate.

13. The fresh air module according to claim 12, characterized in that: The connecting plate is provided with a second flange in the circumference, the second flange is sleeved on the outer side of the fourth side plate, the second flange is provided with the limiting notch and the connecting hole for installing the fastener; the connecting plate is fixedly connected to the fourth side plate and the air duct machine body by fasteners.

14. A duct machine, characterized in that: include: Duct machine body; and The fresh air module according to any one of claims 1 to 13, connected to the duct air conditioner body.

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