Fresh air module and duct type air conditioner

Abstract

The invention provides a fresh air module and a duct type air conditioner. The fresh air module comprises a shell provided with a first access hole; the access cover plate is detachably arranged at the first access hole in a covering manner; the air duct assembly is detachably arranged in the shell and corresponds to the first access hole, and the air duct assembly is arranged to be capable of entering and exiting the shell from the first access hole; and the fan assembly is detachably arranged in the shell, the fan assembly and the air duct assembly are of a split structure, and the fan assembly is arranged to slide to the first access hole after the air duct assembly and the access cover plate are taken out so as to be taken out from the first access hole. According to the scheme, the replacement and overhaul requirements of the air duct assembly and the motor can be met through the overhaul opening with the relatively small area, the fresh air module can be arranged on one side of the length direction of the duct type air conditioner body, and therefore the maintenance and replacement requirements of the fresh air module and the attractiveness of a suspended ceiling are both considered.

Description

Technical Field

[0001] The present 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 unit. Background Art

[0002] At present, some ducted air conditioners have added fresh air functions. The fresh air modules are mostly placed on the back side of the ducted air conditioner body. The filter of the fresh air module needs to be replaced regularly, and the fan components (such as motors, wind wheels and other components) also need to be repaired. However, the decoration style of ducted air conditioners on the market is that there is no separate inspection port on the ceiling, but the inspection port and the air intake port are designed as one. Therefore, after adding the fresh air module, the width of the air intake port on the ceiling will increase significantly, covering the entire fresh air module to meet the maintenance needs of the fresh air module, but this will seriously affect the appearance of the ceiling, cause customer dissatisfaction, and affect the market promotion of the product. Summary of the invention

[0003] The technical problem to be solved by the present application is to provide a fresh air module and a duct machine, which can meet the replacement and maintenance needs of the filter and the motor through a relatively small inspection port, so that the fresh air module can be placed on one side of the length direction of the duct machine body, thereby taking into account the maintenance and replacement needs of the fresh air module and the aesthetics of the ceiling.

[0004] To this end, an embodiment of the present application provides a fresh air module, comprising: an outer shell, provided with a first inspection port; an inspection cover, detachably covered at the first inspection port; an air duct assembly, detachably arranged in the outer shell and arranged corresponding to the first inspection port, the air duct assembly being arranged to be able to enter and exit the outer shell through the first inspection port; and a fan assembly, detachably arranged in the outer shell, and being a split structure with the air duct assembly, and the fan assembly being arranged to be able to slide to the first inspection port after the air duct assembly and the inspection cover are taken out, so as to be taken out from the first inspection port.

[0005] In this way, when the air duct assembly needs to be repaired, the air duct assembly can be disassembled from the first inspection port and taken out through the second inspection port on the ceiling. The repaired air duct assembly is successively installed back into the housing of the fresh air module through the second inspection port and the first inspection port to replace the filter.

[0006] When the fan assembly needs to be repaired, the air duct assembly and the inspection cover can be removed, and the fan assembly can be slid to the position of the first inspection port, and then the fan assembly can be taken out through the first inspection port and the second inspection port in turn, and the fan assembly can be repaired. The fan assembly and the housing can be matched with a slide rail to improve the smoothness of the fan assembly sliding in the housing. Of course, the fan assembly and the housing can also be matched without a slide rail.

[0007] In this way, the casing of the fresh air module only needs to be provided with a relatively small inspection port (i.e., the first inspection port) to realize the inspection of the fan assembly and the air duct assembly; and the size of the first inspection port in the width direction of the second inspection port can be relatively small to avoid the width of the second inspection port being too large and affecting the aesthetics of the ceiling after decoration, thereby taking into account both the aesthetics of the ceiling and the maintenance problems of the fresh air module caused by the limitations of the ceiling structure.

[0008] Based on the above technical solution, the present application can also be improved as follows.

[0009] In an exemplary embodiment, the fresh air module also includes: a filter assembly; the air duct assembly is provided with an installation space, and the filter assembly is detachably inserted into the installation space; the fan assembly is detachably connected to the air duct assembly, and is configured to be able to slide to the first inspection port after the filter assembly, the inspection cover and the air duct assembly are taken out, so as to be taken out from the first inspection port.

[0010] In an exemplary embodiment, one of the filter assembly and the air duct assembly is provided with an elastic clip, and the other is provided with a slot, and the elastic clip is engaged with the slot to limit the filter assembly to the installation space.

[0011] In an exemplary embodiment, the inspection cover is provided with a loading and unloading notch adapted to the filter assembly, and the filter assembly is configured to enter and exit the housing through the loading and unloading notch.

[0012] In an exemplary embodiment, the inspection cover is provided with a limiting support member, and the limiting support member is configured to abut against the filter assembly to support the filter assembly and limit the filter assembly from escaping from the installation space.

[0013] In an exemplary embodiment, one end of the position-limiting support is rotatably connected to the inspection cover, and the other end is configured to abut against the filter assembly to support the filter assembly.

[0014] In an exemplary embodiment, the air duct assembly is slidably connected to the fan assembly via a first sliding connection structure.

[0015] In an exemplary embodiment, the fresh air module further includes: a check valve assembly, which is disposed in the outer shell and located on a side of the air duct assembly away from the fan assembly, and the air duct assembly is slidably connected to the check valve assembly via a second sliding connection structure.

[0016] In an exemplary embodiment, the first sliding connection structure and the second sliding connection structure both include matching wedge-shaped grooves and wedge-shaped ribs, and the wedge-shaped grooves and the wedge-shaped ribs are configured as follows: the small head end of the wedge-shaped rib is inserted into the wedge-shaped groove from the large head end of the wedge-shaped groove, and the wedge-shaped rib slides relative to the wedge-shaped groove until the wedge-shaped rib is tightly fitted with the wedge-shaped groove.

[0017] In an exemplary embodiment, the fan assembly includes a volute, a wind wheel disposed in the volute, and a motor connected to the wind wheel, the air outlet of the volute is provided with two wedge-shaped grooves, and the extension direction of the wedge-shaped grooves is perpendicular to the axial direction of the volute; the air duct assembly is provided with two wedge-shaped ribs at one end close to the fan assembly.

[0018] In an exemplary embodiment, two of the wedge-shaped grooves are provided at one end of the air duct assembly close to the check valve assembly, and two of the wedge-shaped ribs are correspondingly provided at one end of the check valve assembly close to the air duct assembly.

[0019] In an exemplary embodiment, the air duct assembly is fixedly connected to the fan assembly via a first fastener; and / or, the air duct assembly is fixedly connected to the check valve assembly via a second fastener.

[0020] In an exemplary embodiment, the housing is provided with a fresh air inlet, a fresh air outlet and an exhaust air inlet.

[0021] An embodiment of the present application also provides a duct air conditioner, which is configured to be concealed in a suspended ceiling, and is characterized in that the duct air conditioner comprises: a duct air conditioner main body, the duct air conditioner main body is provided with an air inlet; and a fresh air module as described in any one of the above embodiments, which is arranged on one side of the length direction of the duct air conditioner main body and is connected to the duct air conditioner main body; the suspended ceiling is provided with a second inspection port, the second inspection port is arranged corresponding to the air inlet and the inspection cover, and the area of ​​the second inspection port is larger than the total area of ​​the air inlet and the inspection cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of the duct machine after assembly provided in some embodiments of the present application from the left side;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure as viewed from above;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure from above;

[0025] Figure 4 for Figure 1A schematic diagram of the main structure of the structure shown;

[0026] Figure 5 A schematic diagram of the three-dimensional structure of a duct machine provided in some embodiments of the present application;

[0027] Figure 6 for Figure 5 The schematic diagram of the structure of the duct machine as seen from above is shown;

[0028] Figure 7 A schematic diagram of the three-dimensional structure of a fresh air module provided in some embodiments of the present application;

[0029] Figure 8 for Figure 7 The schematic diagram of the structure of the fresh air module as seen from above is shown;

[0030] Fig. 9 for Figure 7 A schematic diagram of the exploded structure of the fresh air module shown;

[0031] Fig.10 for Fig. 9 The enlarged structural diagram of the middle A part;

[0032] Fig.11 for Figure 7 Another exploded structural diagram of the fresh air module shown;

[0033] Fig.12 for Figure 7 Another exploded structural schematic diagram of the fresh air module shown;

[0034] Fig.13 for Fig.12 The main structural diagram of the fresh air module shown;

[0035] Fig.14 for Fig.13 Schematic diagram of the cross-sectional structure along the middle BB direction;

[0036] Fig.15 for Figure 7 Another exploded structural diagram of the fresh air module shown;

[0037] Fig.16 for Fig.15 The main structural diagram of the fresh air module shown;

[0038] Fig.17 for Fig.16 Schematic diagram of the cross-sectional structure in the CC direction;

[0039] Fig.18 A schematic diagram of the assembly structure of the filter assembly and the air duct assembly provided in some embodiments of the present application;

[0040] Fig.19A schematic diagram of a three-dimensional structure of a fan assembly provided in some embodiments of the present application;

[0041] Fig. 20 A schematic diagram of the three-dimensional structure of a check valve assembly provided in some embodiments of the present application.

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] 100 fresh air modules;

[0044] 1 housing, 11 first inspection port, 12 fresh air inlet, 13 exhaust air inlet;

[0045] 2 inspection cover plate, 21 loading and unloading notch, 22 limiting support member;

[0046] 3 filter assembly, 31 bracket, 311 elastic buckle, 3111 first guide slope, 3112 second guide slope, 312 avoidance groove;

[0047] 4 fan assembly, 41 volute, 411 connecting column, 42 wind wheel, 43 motor;

[0048] 5 air duct assembly, 51 installation space, 52 first connecting lug, 521 first connecting hole, 53 second connecting lug, 531 second connecting hole;

[0049] 61 wedge-shaped slide groove, 62 wedge-shaped rib;

[0050] 7. Check valve assembly;

[0051] 8. Electric control box;

[0052] 200 duct machine body;

[0053] 300 suspended ceiling, 302 second inspection port, 304 air supply port, 306 bottom plate, 308 side panel. DETAILED DESCRIPTION

[0054] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0055] The embodiment of the present application provides a fresh air module 100 and a duct air conditioner, wherein the fresh air module 100 can be used in a duct air conditioner or in other types of air treatment equipment.

[0056] like Figures 1 to 6As shown, the duct machine provided in the embodiment of the present application includes a duct machine body 200 and a fresh air module 100. The duct machine body 200 can be an indoor unit in the duct, and the indoor unit in the duct can be connected to an outdoor unit in the duct. The indoor unit in the duct is concealed in the ceiling, and the outdoor unit in the duct is installed outdoors. The duct machine body 200 can also be an all-in-one machine. The duct machine body 200 is provided with an air inlet, and the air inlet is for indoor air to enter the duct machine body 200. The duct machine body 200 is also provided with an air outlet, and the air outlet is for the air after heat exchange in the duct machine body 200 to be discharged indoors. The duct machine body 200 is usually in the shape of a rectangular parallelepiped, and the air outlet can be arranged on the front side wall of the duct machine, and the air inlet can be arranged on the bottom wall of the duct machine.

[0057] like Figures 1 to 4 As shown, the duct machine is concealed in the ceiling 300. The side plate 308 of the ceiling 300 is provided with an air outlet 304 (such as Figure 4 As shown in FIG. 3 ), an air supply grille can be provided at the air supply port 304. An air suction port corresponding to the air inlet of the duct machine body 200 is provided on the bottom plate 306 of the ceiling 300, and an air suction grille can be provided at the air suction port. In addition, the air suction port is also the inspection port of the duct machine (recorded as the second inspection port 302, as shown in FIG. 3 ). Figure 2 and Figure 3 302 ), which is used for the maintenance of the duct machine during use. During maintenance, the air suction grille can be disassembled to expose the second maintenance port 302, and the duct machine can be repaired.

[0058] Among them, Figure 5 and Figure 6 As shown, the fresh air module 100 is arranged in the length direction of the air duct machine body 200 (i.e. Figures 1 to 6 One side of the duct machine body 200 is connected to the duct machine body 200.

[0059] In the related art, the fresh air module 100 is mostly placed at the rear side of the duct machine body 200, which will increase the depth of the duct machine, that is, the depth of the duct machine horizontally extending into the side wall of the ceiling 300, and will also cause the width of the second inspection port 302 (i.e. Figures 1 to 6 In the embodiment of the present application, the fresh air module 100 is arranged on one side of the length direction of the duct machine body 200 and is connected to the duct machine body 200, which does not increase the depth of the duct machine and allows the second inspection port 302 to form a narrow and long structure, which is more in line with the current mainstream decoration style.

[0060] In some exemplary embodiments, the length direction of the fresh air module 100 and the depth direction of the air duct machine body 200 (i.e. Figures 1 to 6 The front-to-back direction in the figure is consistent.

[0061] Thus, compared with the duct unit main body 200, after adding the fresh air module 100, the duct unit only slightly increases in length, while the depth dimension horizontally extending into the ceiling 300 does not change, which facilitates concealed installation in the ceiling 300 without increasing the depth dimension of the duct unit. The second inspection port 302 only needs to be appropriately increased in length to meet the inspection requirements of the fresh air module 100, and will not affect the appearance after decoration.

[0062] In some exemplary embodiments, the length of the fresh air module 100 is in the range of 400 mm to 500 mm, such as 400 mm, 420 mm, 440 mm, 460 mm, 480 mm, 500 mm, etc.

[0063] This is close to the depth dimension of the duct machine main body 200 , and the depth dimension of the duct machine ceiling 300 during installation can be fully utilized to reasonably arrange the fresh air module 100 .

[0064] In some exemplary embodiments, Figure 2 As shown, the second inspection opening 302 is arranged corresponding to the air inlet and the inspection cover 2 of the fresh air module 100, and the area of ​​the second inspection opening 302 is larger than the area of ​​the air inlet and the inspection cover 2.

[0065] In this way, when the air intake grille is removed, the air inlet and the inspection cover 2 can be exposed. The duct machine body 200 can be inspected by opening the bottom wall (or inspection panel) where the air inlet is located. The fresh air module 100 can be inspected by opening the inspection cover 2. Therefore, only one inspection port (i.e., the second inspection port 302) needs to be provided on the ceiling 300 to realize the inspection of the duct machine body 200 and the fresh air module 100. In addition, the second inspection port 302 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.

[0066] In some exemplary embodiments, the fresh air module 100 includes: a housing 1, an inspection cover 2, an air duct assembly 5 and a fan assembly 4, such as Figures 7 to 17 shown.

[0067] The housing 1 is provided with a first inspection port 11. Fig.12 and Fig.15 The area of ​​the first inspection opening 11 is larger than the cross-sectional area of ​​the air duct assembly 5 , and the area of ​​the first inspection opening 11 is larger than the cross-sectional area of ​​the fan assembly 4 .

[0068] The inspection cover plate 2 is detachably arranged on the first inspection opening 11. The inspection cover plate 2 and the housing 1 can be fixedly connected by fasteners such as screws.

[0069] The air duct assembly 5 is detachably disposed in the housing 1 and is disposed corresponding to the first inspection opening 11. The air duct assembly 5 is configured to be able to enter and exit the housing 1 through the first inspection opening 11.

[0070] The fan assembly 4 is detachably disposed in the housing 1 and is a separate structure from the air duct assembly 5. The fan assembly 4 is configured to slide to the first inspection opening 11 after the air duct assembly 5 and the inspection cover 2 are removed, so as to be removed from the first inspection opening 11.

[0071] In this way, when the air duct assembly 5 needs to be repaired, the air duct assembly 5 can be disassembled from the first inspection opening 11. Fig. 9 As shown, the air duct assembly 5 is taken out through the second inspection port 302 on the ceiling 300. The air duct assembly 5 after inspection is sequentially installed back into the housing 1 of the fresh air module 100 through the second inspection port 302 and the first inspection port 11 to replace the filter.

[0072] When the fan assembly 4 needs to be repaired, the air duct assembly 5 and the inspection cover 2 can be removed, and the fan assembly 4 can be slid toward the position of the first inspection opening 11 (please refer to Fig.12 and Fig.15 As shown in FIG. 1 ), the fan assembly 4 is then taken out through the first inspection port 11 and the second inspection port 302 in sequence, and the fan assembly 4 (such as the motor 43, the wind wheel 42 and other components) can be inspected. The fan assembly 4 and the housing 1 can be matched with a slide rail to improve the smoothness of the fan assembly 4 sliding in the housing 1. Of course, the fan assembly 4 and the housing 1 may also not be matched with a slide rail.

[0073] In this way, the casing 1 of the fresh air module 100 only needs to be provided with a relatively small inspection port (i.e., the first inspection port 11) to realize the inspection of the fan assembly 4 and the air duct assembly 5, and the size of the first inspection port 11 in the width direction of the second inspection port 302 can be relatively small to avoid the width of the second inspection port 302 being too large and affecting the aesthetics after decoration, thereby taking into account both the aesthetics of the suspended ceiling and the maintenance problems of the fresh air module 100 caused by the structural limitations of the suspended ceiling 300.

[0074] In some exemplary embodiments, the fresh air module 100 further includes a filter assembly 3, such as Fig. 9 , Fig.11 , Fig.12 , Figures 14 to 17 The area of ​​the first inspection opening 11 is larger than the cross-sectional area of ​​the filter assembly 3 .

[0075] The filter assembly 3 is detachably disposed in the housing 1 and is disposed corresponding to the first inspection opening 11. The filter assembly 3 is disposed to be able to enter and exit the housing 1 through the first inspection opening 11. The air duct assembly 5 is provided with an installation space 51, and the filter assembly 3 is detachably inserted into the installation space 51.

[0076] The fan assembly 4 is detachably connected to the air duct assembly 5 and is configured to be able to slide to the first inspection opening 11 after the filter assembly 3 , the inspection cover 2 and the air duct assembly 5 are taken out, so as to be taken out from the first inspection opening 11 .

[0077] In this way, when only the filter needs to be replaced, the filter assembly 3 is disassembled from the air duct assembly 5 and then removed through the first inspection port 11 and the second inspection port 302. In addition, the replacement of the filter assembly 3 does not require increasing the area of ​​the first inspection port 11, and can be disassembled and assembled together with the air duct assembly 5.

[0078] Please refer to Fig.11 and Fig.12 When the air duct assembly 5 needs to be inspected, the inspection cover 2 can be opened so that the air duct assembly 5 can also be taken out through the first inspection port 11 and the second inspection port 302.

[0079] Please refer to Fig.11 , Fig.12 and Fig.15 When the fan assembly 4 needs to be inspected, the inspection cover 2 can be opened so that the air duct assembly 5 can be taken out through the first inspection port 11 and the second inspection port 302, and then the fan assembly 4 is moved to the first inspection port 11 and then taken out through the first inspection port 11 and the second inspection port 302.

[0080] In some embodiments, the filter assembly 3 may include a filter and a bracket 31. The bracket 31 is detachably disposed in the housing 1 and is disposed corresponding to the first inspection port 11. The bracket 31 is configured to be able to enter and exit the housing 1 through the first inspection port 11. The filter is detachably mounted on the bracket 31. When the filter needs to be replaced, the filter assembly 3 is taken out, the filter is removed from the bracket 31, and then a new filter is installed, and then the filter assembly 3 is installed back into the housing 1 of the fresh air module 100. The filter can be, but is not limited to, a HEPA filter.

[0081] Of course, the filter assembly 3 can also be disassembled, and the filter together with the bracket 31 can be replaced.

[0082] In some exemplary embodiments, one of the filter assembly 3 and the air duct assembly 5 is provided with an elastic buckle 311 (such as Fig.10 The elastic buckle 311 is engaged with the slot to limit the filter assembly 3 to be located in the installation space 51.

[0083] This helps to improve the stability of the filter assembly 3 installed in the air duct assembly 5, and further helps to improve the reliability of the filter assembly 3. In addition, the cooperation between the elastic buckle 311 and the card slot can also support the filter assembly 3, which helps to prevent the filter assembly 3 from falling downward under the action of gravity.

[0084] In some embodiments, there are multiple elastic buckles 311, and the multiple elastic buckles 311 are arranged at intervals. For example, two elastic buckles 311 are arranged on the filter assembly 3, such as Fig.10 As shown, the two elastic buckles 311 are arranged back to back and spaced apart.

[0085] In some embodiments, Fig.10 As shown, the elastic buckle 311 may also be provided with a first guiding slope 3111 and a second guiding slope 3112. The first guiding slope 3111 is provided to guide the elastic buckle 311 into the slot. The second guiding slope 3112 is provided to guide the elastic buckle 311 out of the slot.

[0086] In some embodiments, Fig.10 As shown, the filter assembly 3 is provided with an avoidance groove 312, and the elastic buckle 311 is arranged in the avoidance groove 312. The avoidance groove 312 can provide an avoidance space for the deformation of the elastic buckle 311, thereby facilitating the deformation ability of the elastic buckle 311 and reducing the difficulty of the elastic buckle 311 entering and exiting the slot.

[0087] In some exemplary embodiments, the inspection cover 2 is provided with a loading and unloading notch 21 adapted to the filter assembly 3, such as Fig. 9 As shown, the filter assembly 3 is configured to enter and exit the housing 1 through the loading and unloading notch 21.

[0088] In this way, when the filter assembly 3 is replaced, there is no need to disassemble the inspection cover 2. The filter assembly 3 can be removed by simply opening the air suction grille and pulling out the filter assembly 3. Fig. 9 As shown, when replacing, the filter assembly 3 can be assembled by directly pushing the filter assembly 3 upwards, thereby facilitating efficient and quick replacement of the filter assembly 3.

[0089] Of course, the inspection cover 2 may not be provided with the loading and unloading notch 21 , and the inspection cover 2 also needs to be disassembled when replacing the filter assembly 3 .

[0090] In some exemplary embodiments, the inspection cover 2 is provided with a limiting support member 22, such as Figure 7 and Figure 8 The limiting support member 22 is arranged to abut against the filter assembly 3 to support the filter assembly 3 and limit the filter assembly 3 from escaping from the installation space 51 .

[0091] This helps to further improve the stability and reliability of the filter assembly 3 and prevent the filter assembly 3 from falling under the action of gravity after the air suction grille is removed.

[0092] The limiting support member 22 may be a plate-shaped structure.

[0093] In some exemplary embodiments, one end of the limiting support member 22 is rotatably connected to the inspection cover 2 , and the other end is configured to abut against the filter assembly 3 to support the filter assembly 3 .

[0094] In this way, when the filter assembly 3 needs to be taken out, the limiting support 22 is rotated and pushed away to release the restriction on the filter assembly 3, and the filter assembly 3 can be taken out by pulling the filter assembly 3. After replacing the filter, the filter assembly 3 is inserted back into the housing 1, and then the limiting support 22 is pushed to reset it against the filter assembly 3.

[0095] In some exemplary embodiments, the air duct assembly 5 is slidably connected to the fan assembly 4 via a first sliding connection structure.

[0096] When disassembling and assembling the air duct assembly 5, pulling the air duct assembly 5 can make the air duct assembly 5 slide relative to the fan assembly 4, thereby achieving the sliding removal of the air duct assembly 5; pushing the air duct assembly 5 can make the air duct assembly 5 slide relative to the fan assembly 4, thereby achieving the sliding installation of the air duct assembly 5, which is beneficial to reduce the difficulty of disassembling and assembling the air duct assembly 5.

[0097] In some exemplary embodiments, Fig.18 and Fig.19 As shown, the first sliding connection structure includes a matching wedge-shaped slot 61 and a wedge-shaped rib 62. The wedge-shaped slot 61 and the wedge-shaped rib 62 are arranged such that the small end of the wedge-shaped rib 62 is inserted into the wedge-shaped slot 61 from the large end of the wedge-shaped slot 61, and the wedge-shaped rib 62 slides relative to the wedge-shaped slot 61 until the wedge-shaped rib 62 and the wedge-shaped slot 61 are tightly matched.

[0098] The wedge-shaped chute 61 has a large end and a small end, and the cross-sectional area of ​​the wedge-shaped chute 61 gradually decreases from the large end to the small end. The wedge-shaped rib 62 also has a large end and a small end, and the cross-sectional area of ​​the wedge-shaped rib 62 gradually decreases from the large end to the small end.

[0099] The cooperation between the wedge-shaped groove 61 and the wedge-shaped rib 62 can not only realize the sliding guide function, but also realize the limiting function by tight fit, and is conducive to improving the sealing between the air duct assembly 5 and the fan assembly 4. When the wedge-shaped rib 62 and the wedge-shaped groove 61 realize tight fit, the wedge-shaped rib 62 and the wedge-shaped groove 61 cannot continue to slide relative to each other, indicating that the air duct assembly 5 is assembled in place.

[0100] One of the wedge-shaped slide groove 61 and the wedge-shaped rib 62 is disposed on the air duct assembly 5 , and the other is disposed on the fan assembly 4 .

[0101] During assembly, the wedge-shaped rib 62 and the wedge-shaped slide 61 slide relative to each other. It can be that: the wedge-shaped slide 61 is provided on the fan assembly 4, and the wedge-shaped rib 62 is provided on the air duct assembly 5. Then, during the loading and unloading process of the air duct assembly 5, the wedge-shaped slide 61 remains stationary, and the wedge-shaped rib 62 moves and slides into the wedge-shaped slide 61. It can also be that: the wedge-shaped rib 62 is provided on the fan assembly 4, and the wedge-shaped slide 61 is provided on the air duct assembly 5. Then, during the loading and unloading process of the air duct assembly 5, the wedge-shaped rib 62 remains stationary, and the wedge-shaped slide 61 moves and slides onto the wedge-shaped rib 62.

[0102] Of course, the first sliding connection structure may also be in other forms, such as a common slide rail with a uniform and constant cross-section and a common slide groove with a uniform and constant cross-section.

[0103] In some exemplary embodiments, Fig.19 As shown, the fan assembly 4 includes a volute 41, a wind wheel 42 disposed in the volute 41, and a motor 43 connected to the wind wheel 42. The air outlet of the volute 41 is provided with two wedge-shaped slide grooves 61, and the extending direction of the wedge-shaped slide grooves 61 is perpendicular to the axial direction of the volute 41. Fig.18 As shown, two wedge-shaped ribs 62 are correspondingly provided at one end of the air duct assembly 5 close to the fan assembly 4. The two wedge-shaped slide grooves 61 can be mirror-symmetrical. The two wedge-shaped ribs 62 can be mirror-symmetrical.

[0104] Since the second inspection port 302 opens downward, after assembly, the air duct assembly 5, the filter assembly 3, the fan assembly 4, etc. pass through the second inspection port 302 in the vertical direction, and the extension direction of the wedge-shaped rib 62 and the wedge-shaped slide 61 is also the vertical direction. The extension direction of the wedge-shaped slide 61 is perpendicular to the axial direction of the volute 41, so the axial direction of the volute 41 is the horizontal direction. Therefore, the volute 41 is a vertical structure rather than a horizontal structure, that is, the volute 41 is vertically arranged in the outer shell 1. The wind wheel 42 can be a centrifugal wind wheel 42. The air outlet of the volute 41 can be set at the lower part of the volute 41.

[0105] The air outlet of the volute 41 is roughly rectangular. Therefore, two wedge-shaped slide grooves 61 can be symmetrically arranged at the air outlet of the volute 41, and the two wedge-shaped slide grooves 61 are parallel to each other. Correspondingly, two wedge-shaped ribs 62 are correspondingly arranged at one end of the air duct component 5 close to the fan component 4.

[0106] The cross section of the wedge-shaped slot 61 may be U-shaped, and the U-shaped openings of the two wedge-shaped slots 61 are arranged opposite to each other. In this way, after the wedge-shaped rib 62 is inserted into the wedge-shaped slot 61, the horizontal relative movement of the air duct assembly 5 and the fan assembly 4 can be restricted, which is beneficial to improving the connection reliability of the air duct assembly 5 and the fan assembly 4.

[0107] In some embodiments, the length of the wedge-shaped slide groove 61 is smaller than the length of the wedge-shaped rib 62 .

[0108] Since the height dimension of the air outlet of the volute 41 is limited, while the height dimension of the air duct assembly 5 is relatively large, the length of the wedge-shaped rib 62 is greater than the length of the wedge-shaped groove 61, thereby ensuring that the wedge-shaped rib 62 and the wedge-shaped groove 61 always remain in cooperation during the sliding process of the air duct assembly 5 relative to the fan assembly 4.

[0109] In some exemplary embodiments, Fig.14 and Fig.17 As shown, the fresh air module 100 further includes: a check valve assembly 7, which is arranged in the housing 1 and located on a side of the air duct assembly 5 away from the fan assembly 4. The air duct assembly 5 is slidably connected to the check valve assembly 7 via a second sliding connection structure.

[0110] In this way, when disassembling and assembling the air duct assembly 5, pulling the air duct assembly 5 can make the air duct assembly 5 slide relative to the fan assembly 4 and the check valve assembly 7, thereby achieving the sliding removal of the air duct assembly 5; pushing the air duct assembly 5 can make the air duct assembly 5 slide relative to the fan assembly 4 and the check valve assembly 7, thereby achieving the sliding installation of the air duct assembly 5, which is beneficial to increase the difficulty of disassembly and assembly of the air duct assembly 5.

[0111] Furthermore, both ends of the air duct assembly 5 are slidably matched, which is beneficial to balancing the force on the air duct assembly 5 and further beneficial to improving the sliding smoothness of the air duct assembly 5 .

[0112] In some exemplary embodiments, Fig.18 and Fig. 20 As shown, the second sliding connection structure includes a matching wedge-shaped slot 61 and a wedge-shaped rib 62. The wedge-shaped slot 61 and the wedge-shaped rib 62 are arranged such that the small end of the wedge-shaped rib 62 is inserted into the wedge-shaped slot 61 from the large end of the wedge-shaped slot 61, and the wedge-shaped rib 62 slides relative to the wedge-shaped slot 61 until the wedge-shaped rib 62 and the wedge-shaped slot 61 are tightly matched.

[0113] In this way, the structure inside the shell 1 is roughly designed in sections, and each module is connected together by a wedge-shaped slide groove 61 and a wedge-shaped rib 62, which ensures sealing while meeting the requirements of disassembly and solves the maintenance problem of the ceiling 300 due to structural limitations.

[0114] The wedge-shaped chute 61 has a large end and a small end, and the cross-sectional area of ​​the wedge-shaped chute 61 gradually decreases from the large end to the small end. The wedge-shaped rib 62 has a large end and a small end, and the cross-sectional area of ​​the wedge-shaped rib 62 gradually decreases from the large end to the small end.

[0115] The cooperation between the wedge-shaped groove 61 and the wedge-shaped rib 62 can not only realize the sliding guide function, but also realize the limiting function by tight fit, and is conducive to improving the sealing between the air duct assembly 5 and the check valve assembly 7. When the wedge-shaped rib 62 and the wedge-shaped groove 61 are tightly fitted, the wedge-shaped rib 62 and the wedge-shaped groove 61 cannot continue to slide relative to each other, indicating that the air duct assembly 5 is assembled in place.

[0116] One of the wedge-shaped slide groove 61 and the wedge-shaped rib 62 is provided on the air duct assembly 5 , and the other is provided on the check valve assembly 7 .

[0117] During assembly, the wedge-shaped rib 62 and the wedge-shaped slide 61 slide relative to each other. It can be that: the wedge-shaped slide 61 is provided on the check valve assembly 7, and the wedge-shaped rib 62 is provided on the air duct assembly 5, then during the loading and unloading process of the air duct assembly 5, the wedge-shaped slide 61 remains stationary, the wedge-shaped rib 62 moves, and slides into the wedge-shaped slide 61. It can also be that: the wedge-shaped rib 62 is provided on the check valve assembly 7, and the wedge-shaped slide 61 is provided on the air duct assembly 5, then during the loading and unloading process of the air duct assembly 5, the wedge-shaped rib 62 remains stationary, the wedge-shaped slide 61 moves, and slides onto the wedge-shaped rib 62.

[0118] In some embodiments, Fig.18 As shown, two wedge-shaped slide grooves 61 are provided at one end of the air duct assembly 5 close to the check valve assembly 7. Fig. 20 As shown, two wedge-shaped ribs 62 are correspondingly provided at one end of the check valve assembly 7 close to the air duct assembly 5 .

[0119] In some embodiments, the air duct assembly 5 is provided with two wedge-shaped slide grooves 61, such as Fig.18 As shown, the two wedge-shaped slots 61 are parallel to each other. Correspondingly, the end of the check valve assembly 7 close to the air duct assembly 5 is provided with two wedge-shaped ribs 62, as shown in FIG. Fig. 20 As shown, the two wedge-shaped slots 61 can be mirror-symmetrical. The two wedge-shaped ribs 62 can be mirror-symmetrical.

[0120] The cross section of the wedge-shaped slot 61 may be U-shaped, and the U-shaped openings of the two wedge-shaped slots 61 are arranged opposite to each other. In this way, after the wedge-shaped rib 62 is inserted into the wedge-shaped slot 61, the horizontal relative movement of the air duct assembly 5 and the check valve assembly 7 can be restricted, which is beneficial to improving the connection reliability of the air duct assembly 5 and the check valve assembly 7.

[0121] In some exemplary embodiments, the air duct assembly 5 is fixedly connected to the fan assembly 4 by a first fastener. The first fastener may be, but is not limited to, a screw.

[0122] This is beneficial to improving the connection reliability between the air duct assembly 5 and the fan assembly 4, and preventing the air duct assembly 5 from falling downward under the action of gravity after the inspection cover 2 is disassembled.

[0123] In some embodiments, Fig.18 As shown, the lower end of the air duct assembly 5 is provided with a first connecting lug 52, and the first connecting lug 52 is provided with a first connecting hole 521. The volute 41 is provided with a connecting column 411, as shown in FIG. Fig.19 As shown, the screw passes through the first connection hole 521 and is fixedly connected to the connection column 411. When the air duct assembly 5 is disassembled, the first fastener needs to be removed.

[0124] In some exemplary embodiments, the air duct assembly 5 is fixedly connected to the check valve assembly 7 by a second fastener. The second fastener may be, but is not limited to, a screw.

[0125] This is beneficial to improving the connection reliability between the air duct assembly 5 and the check valve assembly 7, and preventing the air duct assembly 5 from falling downward under the action of gravity after the inspection cover 2 is disassembled.

[0126] In some embodiments, Fig.11 As shown, the lower end of the air duct assembly 5 is provided with a second connecting lug 53, and the second connecting lug 53 is provided with a second connecting hole 531. Fig. 20 As shown, the check valve assembly 7 is provided with a third connection hole, and the screw passes through the second connection hole 531 and the third connection hole to fix the air duct assembly 5 with the check valve assembly 7. When the air duct assembly 5 is disassembled, the second fastener needs to be removed.

[0127] In some exemplary embodiments, the housing 1 is provided with a fresh air inlet 12 (eg Figure 6 and Figure 7 As shown), fresh air outlet and exhaust air inlet 13 (as shown Figure 7 shown).

[0128] The fresh air inlet 12 allows outdoor fresh air to enter the fresh air module 100, and the fresh air outlet allows the fresh air in the fresh air module 100 to be discharged into the indoor environment. The exhaust air inlet 13 allows indoor dirty air to enter the fresh air module 100. The check valve assembly 7 can be connected to the fresh air inlet 12.

[0129] The dirty air can be discharged to the outdoor environment through an exhaust outlet independent of the fresh air inlet 12.

[0130] Alternatively, the polluted air can also be discharged to the outdoor environment through the fresh air inlet 12, and the fresh air inlet 12 and the exhaust outlet are combined into one.

[0131] In this way, the fresh air module 100 not only has the function of providing fresh air, but also has the function of discharging polluted air, which is beneficial to improving the fresh air efficiency.

[0132] In some embodiments, the air duct assembly 5 has multiple ports. The air outlet of the volute 41 is connected to a port of the air duct assembly 5 (a filter is provided at the port), and another port of the air duct assembly 5 can be connected to the check valve assembly 7, and the check valve assembly 7 is connected to the fresh air inlet 12.

[0133] In some exemplary embodiments, the fresh air module 100 further includes an electric control box 8 , which is located outside the housing 1 and is disposed opposite to the second inspection port 302 .

[0134] In this way, the electric control box 8 can also be inspected through the second inspection port 302 .

[0135] In some exemplary embodiments, the length of the air duct assembly 5 is in the range of 200 mm to 280 mm, such as 200 mm, 220 mm, 240 mm, 260 mm, 280 mm, etc. The length of the fan assembly 4 is in the range of 180 mm to 220 mm, such as 180 mm, 200 mm, 220 mm, etc.

[0136] In other words, the length of the air duct assembly 5 is greater than the length of the fan assembly 4. When the air duct assembly 5 can enter and exit the housing 1 through the first inspection opening 11, it indicates that the area of ​​the first inspection opening 11 is greater than the cross-sectional area of ​​the air duct assembly 5, and the area of ​​the first inspection opening 11 must also be greater than the cross-sectional area of ​​the fan assembly 4, so the air duct assembly 5 can also enter and exit the housing 1 through the first inspection opening 11.

[0137] In some exemplary embodiments, the width of the second access opening 302 is greater than or equal to 220 mm.

[0138] To sum up, the fresh air module and duct air conditioner provided in the embodiments of the present application place the fresh air module on the side of the duct air conditioner body, which can fully utilize the depth dimension; and the internal structure adopts a segmented design, and the various components are connected by wedge-shaped slide grooves, which ensures sealing while meeting the requirements of detachability, and solves the maintenance difficulty caused by the limitations of the ceiling structure.

[0139] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0140] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0141] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0142] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0143] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0144] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A fresh air module, characterized in that: include: The housing is provided with a first inspection port; An inspection cover plate, detachably covering the first inspection opening; an air duct assembly, detachably disposed in the housing and arranged corresponding to the first inspection opening, the air duct assembly being arranged to be able to enter and exit the housing through the first inspection opening; and The fan assembly is detachably disposed in the housing and is a separate structure from the air duct assembly. The fan assembly is configured to be able to slide to the first inspection opening after the air duct assembly and the inspection cover are taken out, so as to be taken out from the first inspection opening.

2. The fresh air module according to claim 1, characterized in that: Also includes: Filter assembly; The air duct assembly is provided with an installation space, and the filter assembly is detachably inserted into the installation space; The fan assembly is detachably connected to the air duct assembly and is configured to be able to slide to the first inspection opening after the filter assembly, the inspection cover plate and the air duct assembly are taken out, so as to be taken out from the first inspection opening.

3. The fresh air module according to claim 2, characterized in that: One of the filter assembly and the air duct assembly is provided with an elastic buckle, and the other is provided with a slot. The elastic buckle is engaged with the slot to limit the filter assembly to the installation space.

4. The fresh air module according to claim 2, characterized in that: The inspection cover is provided with a loading and unloading notch adapted to the filter assembly, and the filter assembly is configured to enter and exit the housing through the loading and unloading notch.

5. The fresh air module according to claim 3, characterized in that: The inspection cover is provided with a limit support member, and the limit support member is arranged to abut against the filter assembly to support the filter assembly and limit the filter assembly from escaping from the installation space.

6. The fresh air module according to claim 5, characterized in that: One end of the position-limiting support is rotatably connected to the inspection cover, and the other end is arranged to abut against the filter assembly to support the filter assembly.

7. The fresh air module according to any one of claims 1 to 6, characterized in that: The air duct assembly is slidably connected to the fan assembly via a first sliding connection structure.

8. The fresh air module according to claim 7, characterized in that: Also includes: The check valve assembly is arranged in the housing and is located at a side of the air duct assembly away from the fan assembly. The air duct assembly is slidably connected to the check valve assembly via a second sliding connection structure.

9. The fresh air module according to claim 8, characterized in that: The first sliding connection structure and the second sliding connection structure both include matching wedge-shaped grooves and wedge-shaped ribs, and the wedge-shaped grooves and the wedge-shaped ribs are configured as follows: the small head end of the wedge-shaped rib is inserted into the wedge-shaped groove from the large head end of the wedge-shaped groove, and the wedge-shaped rib slides relative to the wedge-shaped groove until the wedge-shaped rib is tightly fitted with the wedge-shaped groove.

10. The fresh air module according to claim 9, characterized in that: The fan assembly includes a volute, a wind wheel arranged in the volute, and a motor connected to the wind wheel. The air outlet of the volute is provided with two wedge-shaped grooves, and the extension direction of the wedge-shaped grooves is perpendicular to the axial direction of the volute; the end of the air duct assembly close to the fan assembly is correspondingly provided with two wedge-shaped ribs.

11. The fresh air module according to claim 9, characterized in that: One end of the air duct assembly close to the check valve assembly is provided with two wedge-shaped sliding grooves, and one end of the check valve assembly close to the air duct assembly is correspondingly provided with two wedge-shaped ribs.

12. The fresh air module according to claim 8, characterized in that: The air duct assembly is fixedly connected to the fan assembly via a first fastener; and / or The air duct assembly and the check valve assembly are fixedly connected via a second fastener.

13. The fresh air module according to any one of claims 1 to 6, characterized in that: The shell is provided with a fresh air inlet, a fresh air outlet and an exhaust air inlet.

14. A duct machine, arranged to be concealed in a suspended ceiling, characterized in that: The duct machine comprises: A duct machine body, wherein the duct machine body is provided with an air inlet; and The fresh air module as described in any one of claims 1 to 13 is arranged on one side of the length direction of the duct machine body and is connected to the duct machine body; the suspended ceiling is provided with a second inspection port, the second inspection port is arranged corresponding to the air inlet and the inspection cover, and the area of ​​the second inspection port is larger than the total area of ​​the air inlet and the inspection cover.

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