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 which is provided with an access hole; the access cover plate is detachably arranged at the access hole in a covering manner; the volute is arranged in the shell, a mounting opening is formed in one axial end of the volute, and the mounting opening faces the access hole; the air guide ring is arranged at the mounting opening in a sleeving manner, and an air inlet communicated with the mounting opening is formed in a surrounding manner; the air guide ring is detachably connected with the volute, can enter and exit from the shell through the access hole, and is provided with a motor mounting part; and the fan comprises a wind wheel located in the volute and a wind wheel motor connected with the wind wheel, and the wind wheel motor is fixed to the motor mounting part. The fixing position of the wind wheel motor is changed, when the wind wheel motor needs to be maintained and replaced, the maintenance cover plate can be detached, then the wind guide ring, the wind wheel motor and the wind wheel are taken out together from the maintenance opening, and then the wind wheel motor can be maintained and replaced, so that the maintenance convenience of the wind wheel motor is improved.

Description

Technical Field

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

[0002] In related technologies, a fresh air module includes a housing, a maintenance cover plate, a volute, a wind guide ring, and a fan. The fan includes a wind wheel and a wind wheel motor, and the wind wheel motor is fixed on the bottom plate of the housing. When repairing and replacing the wind wheel, it is necessary to first disassemble the maintenance cover plate, the wind guide ring, and the wind wheel before the wind wheel motor can be replaced, resulting in inconvenient maintenance. Summary of the Utility Model

[0003] The technical problem to be solved by this application is to provide a fresh air module and an air duct machine, which are beneficial to improving the maintenance convenience of the wind wheel motor.

[0004] An embodiment of this application provides a fresh air module, including: a housing provided with a maintenance opening; a maintenance cover plate detachably covering the maintenance opening; a volute disposed inside the housing, with an installation opening at one axial end of the volute facing the maintenance opening; a wind guide ring sleeved at the installation opening and enclosing an air inlet communicating with the installation opening; and the wind guide ring is detachably connected to the volute and can enter and exit the housing through the maintenance opening, and the wind guide ring is provided with a motor installation part; and a fan including a wind wheel located inside the volute and a wind wheel motor connected to the wind wheel, and the wind wheel motor is fixed to the motor installation part.

[0005] The fresh air module provided by the embodiment of this application changes the fixed position of the wind wheel motor and fixes the wind wheel motor on the motor installation part of the wind guide ring. In this way, when the wind wheel motor needs to be repaired and replaced, the maintenance cover plate can be removed, and then the wind guide ring, the wind wheel motor, and the wind wheel can be taken out together from the maintenance opening to repair and replace the wind wheel motor, without first removing the wind guide ring and the wind wheel before disassembling the wind wheel motor, thereby improving the maintenance convenience of the wind wheel motor.

[0006] Based on the above technical solutions, this application can also be improved as follows.

[0007] In an exemplary embodiment, the motor installation part is provided with a motor installation groove, and at least part of the wind wheel motor is located in the motor installation groove; the fresh air module further includes a motor gland, and the motor gland covers the opening end of the motor installation groove and is detachably connected to the motor installation part.

[0008] In an exemplary embodiment, the motor mounting portion is provided with a first connection hole, the motor gland is provided with a second connection hole, and a fastener passes through the first connection hole and the second connection hole to fixedly connect the motor gland to the motor mounting portion; one of the motor mounting portion and the motor gland is provided with a positioning buckle, and the other is provided with a positioning convex, and the positioning buckle is engaged with the positioning convex to position the relative positions of the motor gland and the motor mounting portion.

[0009] In an exemplary embodiment, the motor mounting portion is provided with a first lug, and the first connection hole is provided in the first lug; the motor gland is provided with a second lug, and the second connection hole is provided in the second lug; a stop edge is provided at the radially outer end of the first lug, and the stop edge is configured to abut against the second lug.

[0010] In an exemplary embodiment, a plurality of reinforcing arms are spaced apart on the inner side of the air guide ring, and the radially inner ends of the plurality of reinforcing arms are connected to the motor mounting portion.

[0011] In an exemplary embodiment, the fresh air module further includes an arc-shaped filter screen, and the filter screen extends along the circumference of the air guide ring; the air guide ring is provided with a first limiting rib and a second limiting rib extending along its circumference, and the filter screen is limited between the first limiting rib and the second limiting rib; a limiting flange and a detachable limiting plate are further provided at one axial end of the volute, and both ends of the filter screen respectively abut against the limiting flange and the limiting plate, and the limiting plate is configured to be able to enter and exit the maintenance opening.

[0012] In an exemplary embodiment, one of the limiting plate and the volute is provided with a limiting buckle, and the other is provided with a limiting hole, and the limiting buckle is configured to be able to be inserted into or withdrawn from the limiting hole.

[0013] In an exemplary embodiment, the volute is provided with an end cover, and the end cover is provided with the installation opening; the end cover is provided with a first connection portion, the air guide ring is provided with a second connection portion, and the air guide ring is connected to the end cover through the first connection portion and the second connection portion.

[0014] In an exemplary embodiment, the first connection portion includes a plurality of first buckles spaced apart, and the first buckles and the end cover enclose a card slot, and the second connection portion includes a plurality of second buckles, and the second buckles are configured to rotate into and out of the card slot along the circumference of the air guide ring.

[0015] 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, which is connected to the air duct machine main body. Description of the Drawings

[0016] Figure 1 Partial three-dimensional structural schematic diagram of an air duct machine provided by some embodiments of the present application;

[0017] Figure 2 Partial three-dimensional structural schematic diagram of a fresh air module provided by some embodiments of the present application;

[0018] Figure 3 For Figure 2 Bottom view structural schematic diagram of the shown fresh air module;

[0019] Figure 4 For Figure 3 Cross-sectional structural schematic diagram of the fresh air module in the A-A direction;

[0020] Figure 5 Partial three-dimensional structural schematic diagram of a fresh air module provided by some embodiments of the present application;

[0021] Figure 6 Partial three-dimensional structural schematic diagram of a fresh air module provided by some embodiments of the present application.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1 housing;

[0024] 2 maintenance cover plate;

[0025] 3 volute, 31 end cover, 311 limiting flange, 312 first buckle, 3121 third connection hole, 313 card slot, 314 limiting buckle;

[0026] 4 air guide ring, 41 first limiting rib, 42 second limiting rib, 43 air inlet, 44 motor installation part, 441 motor installation groove, 442 first lug, 4421 first connection hole, 4422 stop edge, 443 positioning card projection, 45 strengthening arm, 46 second buckle, 461 fourth connection hole;

[0027] 5 fan, 51 impeller, 52 impeller motor;

[0028] 6 filter screen;

[0029] 7 motor gland, 71 second lug, 711 connecting column, 712 second connection hole, 72 positioning buckle;

[0030] 8 limiting plate, 81 extension plate, 811 limiting card hole;

[0031] 100 fresh air module, 200 air duct machine main body. Detailed implementation manners

[0032] The principles and features of the present application are described below with reference to the accompanying drawings. The examples given are only used to explain the present application and are not intended to limit the scope of the present application.

[0033] As Figures 1 to 6 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 the air duct machine or other types of air treatment equipment.

[0034] As Figure 1 shown, 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.

[0035] 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 unit of the air duct. The in-duct air conditioner is recessed and installed in the ceiling, and the outdoor unit of the air duct is installed outdoors. The air duct machine main body 200 can also be an all-in-one machine.

[0036] The air duct machine main body 200 is provided with an air return opening, and the air return opening of the air duct machine main body 200 allows indoor air to enter the air duct machine main body 200. The air duct machine main body 200 is also provided with an air outlet, and the air outlet of the air duct machine main body 200 discharges the air heated and exchanged in the air duct machine main body 200 to the indoor. The air duct machine main body 200 is generally rectangular, and 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.

[0037] The air duct machine is recessed and installed in the ceiling. The side plate of the ceiling is provided with an air supply opening corresponding to the air outlet of the air duct machine main body 200, and an air supply grille can be arranged at the air supply opening. The bottom plate of the ceiling is provided with an air return opening corresponding to the air return opening of the air duct machine main body 200, and an air return grille can be arranged at the air return opening of the ceiling. And, the air return opening of the ceiling is also the maintenance opening (denoted as the second maintenance opening) of the air duct machine, which is used for maintaining the air duct machine during use. During maintenance, the air return grille can be disassembled, and then the second maintenance opening can be exposed to maintain the air duct machine.

[0038] In some embodiments, 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.

[0039] 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 ceiling), and makes the second maintenance opening can form a long and narrow structure, which is more in line with the current mainstream decoration style.

[0040] In some exemplary embodiments, the second maintenance opening corresponds to the air return opening of the air duct machine main body 200 and the maintenance cover 2 of the fresh air module 100, and the area of the second maintenance opening is larger than the total area of the air return opening of the air duct machine main body 200 and the maintenance cover 2 of the fresh air module 100.

[0041] In this way, when the return air grille is removed, the air inlet 43 of the main body 200 of the air duct machine and the maintenance cover plate 2 can be exposed. By opening the bottom wall where the air inlet 43 of the main body 200 of the air duct machine is located (or the maintenance plate of the main body 200 of the air duct machine), the main body 200 of the air duct machine can be maintained. By opening the maintenance cover plate 2 of the fresh air module 100, the fresh air module 100 can be maintained. Therefore, only by setting a maintenance opening (i.e., the second maintenance opening) on the ceiling can the maintenance of the main body 200 of the air duct machine and the fresh air module 100 be realized. Moreover, the second maintenance opening can maintain a long and narrow shape, which conforms to the current mainstream decoration style and is conducive to the market promotion of the product.

[0042] After the air duct machine is assembled, the cover plate of the fresh air module 100 is arranged downward, and the bottom plate is arranged upward. Herein, the "downward arrangement" and "upward arrangement" 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 of the housing of the fresh air module 100 is at the bottom, and the maintenance cover plate 2 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 and the maintenance cover plate 2 can be changed. For example: the bottom plate is at the bottom, and after the internal structures such as the wind wheel 51, the wind wheel motor 52, and the volute 3 are installed, the maintenance cover plate 2 of the housing is then covered.

[0043] In the related art, the wind wheel motor 52 is fixed on the bottom plate of the housing 1. When the wind wheel motor 52 is repaired and replaced, it is necessary to first remove the maintenance cover plate 2, the air guide ring 4, and the wind wheel 51 before the wind wheel motor 52 can be repaired and replaced, resulting in inconvenient maintenance.

[0044] The embodiment of the present application provides a fresh air module 100, including: a housing 1, a maintenance cover plate 2, a volute 3, an air guide ring 4, and a fan 5, as Figures 2 to 6 shown.

[0045] Among them, the housing 1 is provided with a maintenance opening (denoted as the first maintenance opening). The maintenance cover plate 2 is detachably covered at the maintenance opening. The maintenance opening is usually arranged on the bottom plate of the housing 1, so the maintenance opening is arranged downward.

[0046] The volute 3 is arranged inside the housing 1. One axial end of the volute 3 is provided with an installation opening, and the installation opening faces the maintenance opening. The volute 3 can be an integral structure.

[0047] The air guide ring 4 is sleeved at the installation opening and encloses an air inlet 43 communicating with the installation opening. Moreover, the air guide ring 4 is detachably connected to the volute 3 and can enter and exit the housing 1 through the maintenance opening. The air guide ring 4 is provided with a motor installation portion 44.

[0048] The fan 5 includes a wind wheel 51 located inside the volute 3 and a wind wheel motor 52 connected to the wind wheel 51. The wind wheel motor 52 is fixed to the motor installation portion 44.

[0049] The fresh air module 100 provided by the embodiment of the present application changes the fixed position of the wind wheel motor 52 and fixes the wind wheel motor 52 on the motor mounting portion 44 of the air guide ring 4. In this way, when the wind wheel motor 52 needs to be repaired or replaced, the maintenance cover plate 2 can be removed, and then the air guide ring 4, the wind wheel motor 52 and the wind wheel 51 can be taken out together from the maintenance opening, and then the wind wheel motor 52 can be repaired or replaced without first removing the air guide ring 4 and the wind wheel 51 before disassembling the wind wheel motor 52, thereby improving the maintenance convenience of the wind wheel motor 52.

[0050] In some exemplary embodiments, as Figure 4 shown, the motor mounting portion 44 is provided with a motor mounting groove 441, and at least a part of the wind wheel motor 52 is located in the motor mounting groove 441.

[0051] The fresh air module 100 further includes a motor gland 7, and the motor gland 7 covers the opening end of the motor mounting groove 441 and is detachably connected to the motor mounting portion 44.

[0052] The motor gland 7 can cover the wind wheel motor 52, which is beneficial to avoiding the external influence on the wind wheel motor 52. When the wind wheel motor 52 needs to be repaired or replaced, the maintenance cover plate 2 can be removed, and then the air guide ring 4, the wind wheel motor 52 and the wind wheel 51 can be taken out together from the maintenance opening, and then the motor gland 7 can be removed to expose the wind wheel motor 52, and then the wind wheel motor 52 can be repaired or replaced.

[0053] In some exemplary embodiments, as Figure 5 and Figure 6 shown, the motor mounting portion 44 is provided with a first connection hole 4421, and the motor gland 7 is provided with a second connection hole 712. A fastener passes through the first connection hole 4421 and the second connection hole 712 to fixedly connect the motor gland 7 to the motor mounting portion 44.

[0054] As Figure 6 shown, one of the motor mounting portion 44 and the motor gland 7 is provided with a positioning buckle 72, and the other is provided with a positioning convex 443. The positioning buckle 72 and the positioning convex 443 are engaged with each other to position the relative positions of the motor gland 7 and the motor mounting portion 44.

[0055] During the assembly process, the motor gland 7 and the motor mounting portion 44 can be pre-positioned first through the cooperation of the positioning buckle 72 and the positioning convex 443, so that the first connection hole 4421 and the second connection hole 712 are aligned, and then the fastener can be quickly installed. In this way, pre-positioning and then fixing in place is beneficial to improving the assembly efficiency and facilitating the fixing and disassembly of the wind wheel motor 52.

[0056] Among them, the number of fasteners is not limited and can be multiple to improve the fixing reliability. The number of positioning buckles 72 is not limited and can be multiple to improve the positioning reliability. The multiple fasteners can be arranged at intervals along the circumferential direction of the motor gland 7. The multiple positioning buckles 72 can be arranged at intervals along the circumferential direction of the motor gland 7.

[0057] In one embodiment, the number of both the fasteners and the positioning buckles 72 is four, and the four fasteners and the four positioning buckles 72 are arranged alternately along the circumferential direction of the motor gland 7. The positioning convex 443 is provided on the outer side wall of the motor mounting portion 44, and the positioning buckle 72 protrudes from the motor gland 7.

[0058] In some exemplary embodiments, such as Figure 5 and Figure 6 as shown, the motor mounting portion 44 is provided with a first lug 442, and the first connection hole 4421 is provided in the first lug 442; the motor gland 7 is provided with a second lug 71, and the second connection hole 712 is provided in the second lug 71; a stop edge 4422 is provided at the radially outer end of the first lug 442, and the stop edge 4422 is arranged to abut against the second lug 71.

[0059] The stop edge 4422 can also play a role in positioning and limiting the second lug 71, which is beneficial to improving the assembly efficiency of the motor gland 7 and facilitating the fixing and disassembly of the wind wheel motor 52.

[0060] In one embodiment, such as Figure 6 as shown, the second lug 71 is provided with a connecting post 711, and the second connection hole 712 is provided in the connecting post 711.

[0061] In some exemplary embodiments, such as Figure 3 and Figure 6 as shown, a plurality of reinforcing arms 45 are provided at intervals on the inner side of the air guide ring 4. An air passage space is formed between adjacent reinforcing arms 45 to ensure that air flow can enter the volute 3 through the air guide ring 4.

[0062] The radially inner ends of the plurality of reinforcing arms 45 are connected to the motor mounting portion 44. In this way, the motor mounting portion 44 can be located in the middle of the air guide ring 4 to ensure that the motor shaft of the wind wheel motor 52 can be aligned with the central axis of the wind wheel 51, so that the wind wheel motor 52 can be directly connected to the wind wheel 51.

[0063] In one embodiment, such as Figure 3 as shown, the number of the reinforcing arms 45 is four, and the four reinforcing arms 45 are arranged radially. The reinforcing arms 45 can be provided with a plurality of reinforcing ribs to ensure their structural strength.

[0064] In one embodiment, such as Figure 5 as shown, the reinforcing arms 45 protrude towards the direction close to the maintenance cover plate 2, and the motor gland 7 is located on the side of the motor mounting portion 44 away from the maintenance cover plate 2.

[0065] In some exemplary embodiments, as Figure 2 , Figure 3 and Figure 4 shown, the fresh air module 100 further includes an arc-shaped filter screen 6, and the filter screen 6 extends along the circumferential direction of the air guide ring 4. The housing is provided with a fresh air inlet and a fresh air outlet. The fresh air inlet is communicated with the air inlet 43, and the fresh air outlet is communicated with the air outlet of the volute 3. The filter screen 6 is located between the fresh air inlet and the air inlet 43, and is arranged to filter the fresh air flowing into the air inlet 43. The filter screen 6 can be, but is not limited to, a Hepa filter screen 6 (i.e., a HEPA filter screen 6).

[0066] As Figure 4 and Figure 5 shown, the air guide ring 4 is provided with a first limiting rib 41 and a second limiting rib 42 extending along its circumferential direction, and the filter screen 6 is limited between the first limiting rib 41 and the second limiting rib 42.

[0067] As Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, an axial end of the volute 3 is further provided with a limiting flange 311 and a detachable limiting plate 8, and two ends of the filter screen 6 are respectively abutted against the limiting flange 311 and the limiting plate 8. The limiting plate 8 is arranged to be able to enter and exit the maintenance port.

[0068] The first limiting rib 41 and the second limiting rib 42 can prevent the filter screen 6 from radially moving. The limiting flange 311 and the limiting plate 8 can prevent the filter screen 6 from circumferentially rotating. Two axial ends of the filter screen 6 can be pressed by the air guide ring 4 and the housing to prevent the filter screen 6 from axially moving. Thus, the fixation of the filter screen 6 can be realized. The limiting flange 311 and the limiting plate 8 can also play a sealing role to prevent the fresh air from entering the air inlet 43 from the outside of the circumferential two ends of the filter screen 6 without passing through the filter screen 6.

[0069] In the use state, the filter screen 6 can be at least partially staggered with the maintenance port. When the filter screen 6 needs to be replaced, the limiting plate 8 can be disassembled, and then the filter screen 6 is pulled along the circumferential direction of the air guide ring 4 to rotate the filter screen 6 to a position corresponding to the maintenance port as much as possible, and then the filter screen 6 is taken out from the maintenance port. Just operate in the reverse direction during replacement. When one end of the filter screen 6 rotates to abut against the limiting flange 311, the limiting plate 8 can be installed.

[0070] In some exemplary embodiments, as Figure 2 , Figure 3 and Figure 4 shown, one of the limiting plate 8 and the volute 3 is provided with a limiting buckle 314, and the other is provided with a limiting card hole 811, and the limiting buckle 314 is arranged to be able to insert into or disengage from the limiting card hole 811.

[0071] This facilitates the disassembly and installation of the limit plate 8, which is beneficial to improving the loading and unloading efficiency of the filter screen 6.

[0072] Among them, the limit buckle 314 can include, but is not limited to, an elastic buckle. By squeezing the elastic buckle, the elastic buckle can be disengaged from the limit card hole 811. After the elastic buckle is inserted into the limit card hole 811, releasing the elastic buckle can limit the elastic buckle within the limit card hole 811. The limit card hole 811 can be provided on the protrusion.

[0073] In one embodiment, the limit buckle 314 is provided on the volute 3 and includes two elastic buckles arranged back to back. The limit plate 8 is provided with an extension plate 81, and the limit card hole 811 is provided on the extension plate 81. The shape of the limit card hole 811 is generally rectangular.

[0074] In some exemplary embodiments, the volute 3 is provided with an end cover 31, and the end cover 31 is provided with an installation opening.

[0075] The end cover 31 is provided with a first connecting portion, and the air guide ring 4 is provided with a second connecting portion. The air guide ring 4 and the end cover 31 are connected through the first connecting portion and the second connecting portion.

[0076] The specific forms of the first connecting portion and the second connecting portion are not limited and can include, but are not limited to: a clamping structure, a fastener connection structure, a plugging structure, etc.

[0077] In some exemplary embodiments, such as Figure 4 and Figure 5 shown, the first connecting portion includes a plurality of first buckles 312 arranged at intervals, and the first buckles 312 and the end cover 31 enclose a clamping groove 313. The second connecting portion includes a plurality of second buckles 46, and the second buckles 46 are arranged to rotate in and out of the clamping groove 313 along the circumferential direction of the air guide ring 4.

[0078] The cooperation between the first buckle 312 and the second buckle 46 can play a role in clamping and fixing, and is convenient for the air guide ring 4 to rotate relative to the volute 3.

[0079] The first buckle 312 can be generally L-shaped, and the second buckle 46 can be generally block-shaped. The number of the first buckles 312 can be multiple (such as two, three, four or more), and the multiple first buckles 312 are arranged at intervals along the circumferential direction of the air guide ring 4. The number of the second buckles 46 can be equal to the number of the first buckles 312 and correspond one by one.

[0080] In some exemplary embodiments, at least one first buckle 312 and the corresponding second buckle 46 are fixedly connected by a fastener.

[0081] This can improve the connection reliability between the air guide ring 4 and the volute 3 and effectively prevent the air guide ring 4 from loosening.

[0082] In one example, such asFigure 5 As shown, at least one of the first buckles 312 is provided with a third connection hole 3121. The corresponding second buckle 46 is provided with a fourth connection hole 461. A fastener is passed through the third connection hole 3121 and the fourth connection hole 461 to fixedly connect the air guide ring 4 to the volute 3.

[0083] In some exemplary embodiments, one end of the card slot 313 along the circumferential direction of the air guide ring 4 is closed to limit the rotation range of the air guide ring 4 relative to the volute 3.

[0084] Since one end of the card slot 313 is closed, the second buckle 46 can only enter and exit from the other end of the card slot 313, and can at most rotate to the closed end of the adjacent card slot 313. Therefore, the rotation range of the air guide ring 4 is determined by the distance between two adjacent card slots 313. This can play a good positioning role in the rotation of the air guide ring 4. When the air guide ring 4 rotates from the first position to the second position, the second buckle 46 rotates out of the card slot 313 and then rotates to abut against the adjacent first buckle 312, which indicates that the air guide ring 4 rotates to the second position. On the contrary, when the air guide ring 4 rotates from the second position to the first position, the second buckle 46 rotates in the reverse direction to enter the card slot 313 and abut against the adjacent first buckle 312, which indicates that the air guide ring 4 rotates to the first position. This can eliminate the process of manual positioning and further reduce the maintenance difficulty and workload of the fresh air module 100.

[0085] In one example, the number of the first buckles 312 is three, and the number of the second buckles 46 is three. Then the rotation range of the air guide ring 4 is about 120°, which can effectively ensure that the filter screen 6 assembly can rotate to a position directly facing the first maintenance port.

[0086] In some exemplary embodiments, at least one second buckle 46 is in interference fit with the corresponding card slot 313. The interference fit can play a good fixing role and is beneficial to preventing the air guide ring 4 from loosening.

[0087] As Figure 1 shown, the embodiment of the present application further provides an air duct machine, including: an air duct machine main body 200 and the fresh air module 100 according to any one of the above embodiments, which is connected to the air duct machine main body 200.

[0088] The air duct machine provided by the embodiment of the present application includes the fresh air module 100 according to any one of the above embodiments, and thus has all the above beneficial effects, which will not be elaborated herein.

[0089] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "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. It 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 thus should not be construed as a limitation on the present application.

[0090] 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, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0091] In the present application, unless otherwise clearly specified and limited, terms such as "mounted", "connected", "connected to", "fixed" 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.

[0092] 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", "beneath" and "underneath" 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.

[0093] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", 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 are not necessarily directed 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.

[0094] 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: A housing, wherein the housing is provided with an inspection port; An inspection cover plate is detachably arranged on the inspection opening; A volute is disposed in the outer shell, and an installation opening is provided at one axial end of the volute, and the installation opening faces the inspection port; An air guide ring is sleeved on the installation opening and surrounds an air inlet communicated with the installation opening; the air guide ring is detachably connected to the volute and can enter and exit the housing through the inspection port, and the air guide ring is provided with a motor mounting portion; and The wind turbine comprises a wind wheel located in the volute and a wind wheel motor connected to the wind wheel, wherein the wind wheel motor is fixed to the motor mounting portion.

2. The fresh air module according to claim 1, characterized in that: The motor mounting portion is provided with a motor mounting groove, and the wind wheel motor is at least partially located in the motor mounting groove; The fresh air module also includes a motor pressure cover, which is disposed on the open end of the motor mounting slot and is detachably connected to the motor mounting portion.

3. The fresh air module according to claim 2, characterized in that: The motor mounting portion is provided with a first connecting hole, the motor gland is provided with a second connecting hole, and a fastener is passed through the first connecting hole and the second connecting hole to fix the motor gland to the motor mounting portion; One of the motor mounting portion and the motor pressure cover is provided with a positioning buckle, and the other is provided with a positioning convex. The positioning buckle is engaged with the positioning convex to locate the relative position of the motor pressure cover and the motor mounting portion.

4. The fresh air module according to claim 3, characterized in that: The motor mounting portion is provided with a first lug, and the first connecting hole is provided at the first lug; the motor cover is provided with a second lug, and the second connecting hole is provided at the second lug; the radial outer end of the first lug is provided with a stop edge, and the stop edge is configured to abut against the second lug.

5. The fresh air module according to any one of claims 1 to 4, characterized in that: A plurality of reinforcing arms are arranged at intervals on the inner side of the air guide ring, and radial inner ends of the plurality of reinforcing arms are connected to the motor mounting portion.

6. The fresh air module according to any one of claims 1 to 4, characterized in that: It also includes an arc-shaped filter screen, which extends along the circumference of the air guide ring; The air guide ring is provided with a first limiting rib and a second limiting rib extending along its circumference, and the filter screen is limited between the first limiting rib and the second limiting rib; A limiting fold and a detachable limiting plate are also provided at one axial end of the volute, and both ends of the filter screen are respectively against the limiting fold and the limiting plate, and the limiting plate is arranged to be able to enter and exit the inspection port.

7. The fresh air module according to claim 6, characterized in that: One of the limiting plate and the volute is provided with a limiting buckle, and the other is provided with a limiting clamping hole, and the limiting buckle is configured to be able to be inserted into or removed from the limiting clamping hole.

8. The fresh air module according to any one of claims 1 to 4, characterized in that: The volute is provided with an end cover, and the end cover is provided with the installation opening; The end cover is provided with a first connecting portion, the air guide ring is provided with a second connecting portion, and the air guide ring and the end cover are connected via the first connecting portion and the second connecting portion.

9. The fresh air module according to claim 8, characterized in that: The first connection portion includes a plurality of first buckles arranged at intervals, and the first buckles and the end cover enclose a slot. The second connection portion includes a plurality of second buckles, and the second buckles are arranged to rotate in and out of the slot along the circumference of the air guide ring.

10. A duct machine, characterized in that: include: Duct machine body; and The fresh air module according to any one of claims 1 to 9, connected to the duct air conditioner body.

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