Indoor air treatment device

Abstract

The application discloses an indoor air treatment device, which comprises an air treatment module and an air supply module arranged separately, the air supply module is partially or entirely arranged above a suspended ceiling, and the air treatment module is arranged below the suspended ceiling in a wall-mounted manner; the air treatment module has a first shell, a heat exchanger is arranged in the first shell, the heat exchanger is used for directly and / or indirectly treating indoor air, the air supply module has a second shell, a fan is arranged in the second shell, an air inlet and an air outlet are arranged on the first shell, an air inlet is arranged on the second shell, and the air outlet and the air inlet are connected in communication through a pipeline. The indoor air treatment device provided in the application can be installed in a flat layer scene with limited installation space, and a better mute effect can be achieved when the indoor air treatment device is used.

Description

Technical Field

[0001] This invention relates to the field of indoor air treatment technology, and in particular to an indoor air treatment device. Background Technology

[0002] Existing air handling systems mainly include: all-air systems and radiant + fresh air systems.

[0003] Currently, all indoor units of existing all-air systems are floor-standing designs. Floor-standing units are not only large in size but also require a lot of floor space for installation, making them mainly suitable for villas or scenarios with separate equipment rooms. They are difficult to install and adapt in single-level apartments.

[0004] Existing dehumidifying air purifiers are typically wall-mounted or ceiling-mounted. For wall-mounted installations, the installation length must be at least 1.5 meters; for ceiling-mounted installations, the thickness must exceed 350 mm and the depth must exceed 650 mm. However, the height of a typical flat ceiling is usually less than 350 mm, making it difficult to install the dehumidifying air purifier completely above the ceiling. Furthermore, the depth of a standard kitchen cabinet is generally no more than 600 mm, and even in extreme cases, it rarely exceeds 650 mm. Therefore, it is also difficult to directly install the dehumidifying air purifier within existing cabinets. Consequently, current dehumidifying air purifiers are difficult to widely adopt in flat-style apartments. Furthermore, taking the installation of the dehumidifying fan on a balcony as an example, the installation length requirement for the dehumidifying fresh air unit is more than 1.5 meters, while the depth of existing balconies (especially service balconies used for placing washing machines and drying clothes) is mostly within 1.5 meters, and some balconies are even less than 1.2 meters deep. Therefore, it is difficult to install the dehumidifying fresh air unit on a balcony in terms of installation thickness, depth, or installation length.

[0005] Overall, how to install indoor units of air handling systems in the limited space of single-level residential buildings, so that indoor air handling systems can be applied in single-level residential buildings, is a direction that urgently needs improvement. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an indoor air handling device that enables the installation of the indoor unit of an air handling system in the limited space of a single-level apartment, thereby allowing the indoor air handling system to be used in a single-level apartment and achieving better noise reduction during use.

[0007] The specific technical solution of the embodiments of the present invention is as follows:

[0008] An indoor air handling device includes a separate air handling module and an air supply module. The air supply module is partially or entirely installed above the ceiling, while the air handling module is wall-mounted below the ceiling. The air handling module has a first housing containing a heat exchanger for directly and / or indirectly treating indoor air. The air supply module has a second housing containing a fan. The first housing has an air inlet and an air outlet, and the second housing has an air inlet. The air outlet and the air inlet are connected by a pipe. The heat exchanger includes a first heat exchanger and a second heat exchanger. The first heat exchanger is used for heat exchange between refrigerant and air flowing in from the air inlet, and the second heat exchanger is used for heat exchange between refrigerant and water. The water after heat exchange is supplied to indoor radiant pipes for treating indoor air.

[0009] In a preferred embodiment, the first housing has a lateral dimension in the transverse direction and a longitudinal dimension in the longitudinal direction, wherein the lateral dimension is greater than the longitudinal dimension.

[0010] In a preferred embodiment, the air handling module is installed against a wall and arranged horizontally, with the first heat exchanger and the second heat exchanger arranged horizontally within the first housing.

[0011] In a preferred embodiment, the first heat exchanger has a first refrigerant inlet and a first refrigerant outlet in its first refrigerant channel, and the second heat exchanger has a second refrigerant inlet and a second refrigerant outlet in its second refrigerant channel. The second heat exchanger includes a water channel with a water channel inlet and a water channel outlet. The air inlet includes a fresh air inlet and a return air inlet. The fresh air inlet and the exhaust air inlet are both located on the top wall of the first housing. The first refrigerant channel and the second refrigerant channel are connected to the refrigerant channel of the outdoor unit. The first refrigerant channel, the second refrigerant channel, and the water channel all pass through the top wall of the first housing, or the first refrigerant channel, the second refrigerant channel, and the water channel are all located inside the first housing, and the refrigerant channel of the outdoor unit passes through the top wall of the first housing. The return air inlet is located on the side wall or bottom wall of the first housing.

[0012] In a preferred embodiment, the distance between the front sidewall of the first housing and the wall is 550 mm to 600 mm; the distance between the bottom wall of the first housing and the ground is 1.7 m to 1.8 m.

[0013] In a preferred embodiment, the air handling module further includes an air purification unit, wherein the air purification unit, the second heat exchanger, and the first heat exchanger are arranged laterally in the first housing; the front sidewall of the first housing is removable or can be opened to remove the air purification unit.

[0014] In a preferred embodiment, the air inlet includes a fresh air inlet and a return air inlet, and the air inlet, the second heat exchanger, the first heat exchanger, and the air purification unit are arranged horizontally in sequence along the direction of air flow.

[0015] In a preferred embodiment, the second heat exchanger is vertically positioned close to or adjacent to the rear sidewall of the first housing.

[0016] In a preferred embodiment, the air supply module includes a fan box and an air supply fan, the air supply fan being disposed inside the fan box, and the rotation axis of the impeller of the air supply fan extending in the longitudinal direction.

[0017] In a preferred embodiment, the blower includes a first volute, a first impeller disposed within the first volute, a second volute, and a second impeller disposed within the second volute. The rotation axes of the first impeller and the second impeller are offset and both extend in the longitudinal direction. At least a portion of the front portion of the first volute's enclosure and at least a portion of the rear portion of the second volute's enclosure are the same plate, or at least a portion of the front portion of the first volute's enclosure and at least a portion of the rear portion of the second volute's enclosure are different plates that are close to each other.

[0018] In a preferred embodiment, the fan box is horizontally placed above the suspended ceiling, and a first air inlet is provided on each of the two adjacent sides of the fan box. The fan box also includes a sealing plate, which is used to block the other first air inlet when one of the first air inlets is connected to the exhaust outlet through the pipeline.

[0019] In a preferred embodiment, the air inlet includes a fresh air inlet and a return air inlet. The fresh air inlet is used to connect to the outside to introduce outdoor air, and the return air inlet is used to connect to the inside to introduce indoor air into the indoor air handling device. The fresh air inlet and the return air inlet can be opened simultaneously to mix the outdoor air and the indoor air in the indoor air handling device.

[0020] In a preferred embodiment, the fan includes a fresh air fan and a supply air fan, which can be turned on simultaneously. The fresh air fan is used to introduce outdoor air into the indoor air handling device, and the supply air fan is used to deliver the mixed outdoor air and indoor air to the indoor air output terminal.

[0021] In a preferred embodiment, the fresh air inlet and / or the return air inlet are provided with a flow regulating device, which is used to regulate the mixing ratio of the outdoor air and the indoor air.

[0022] In a preferred embodiment, a cavity is provided between the air inlet of the blower and the air outlet of the second housing.

[0023] In a preferred embodiment, the air treatment module further includes a wet film humidifier disposed within the first housing. The wet film humidifier is connected to a purified water inflow pipe, through which purified water flows into the wet film humidifier. The purified water inflow pipe passes through the top wall of the first housing, and a solenoid valve is also disposed on the purified water inflow pipe for controlling the opening and closing of the purified water inflow pipe.

[0024] In a preferred embodiment, the air handling module further includes an air purification unit, wherein the air inlet, the first heat exchanger, the second heat exchanger, the wet film humidifier, and the air purification unit are arranged sequentially along the direction of air flow.

[0025] In a preferred embodiment, the air handling module further includes a first water collection tray located below the first heat exchanger and the second heat exchanger, for collecting condensate from the first heat exchanger and the second heat exchanger. Alternatively, the air handling module further includes a first water collection tray and a wet film humidifier, with the first water collection tray located below the first heat exchanger, the second heat exchanger, and the wet film humidifier, for collecting condensate from the first heat exchanger, the second heat exchanger, and the wet film humidifier.

[0026] In a preferred embodiment, the air handling module further includes a second water receiving tray, which is located below the first water receiving tray and the downward projection of the first water receiving tray falls entirely into the second water receiving tray. The first water receiving tray has a first drain pipe, and the second water receiving tray has a second drain pipe. The first drain pipe is inserted into the second drain pipe and is spaced apart from the outer wall of the first drain pipe and the inner wall of the second drain pipe.

[0027] The technical solution of the present invention has the following significant beneficial effects:

[0028] The indoor air handling device provided in this application embodiment can be divided into two relatively smaller sizes by separating the air handling module and the air supply module. When the air handling module and the air supply module are installed separately, they can be flexibly installed in a flat environment with suitable installation space, which is beneficial to the installation and application of the indoor air handling device in flat environments with limited installation space.

[0029] For applications with suspended ceilings, the air supply module can be installed in the upper part of the ceiling, while the air handling unit can be wall-mounted in the lower part. The air supply module houses a fan within its second housing. Since the fan generates noise during operation, installing it, at least partially, in the upper part of the ceiling keeps the fan away from the user and isolates it from noise. This not only enables the installation of indoor air handling units in single-level apartments but also ensures optimal quiet operation, providing a superior user experience.

[0030] Specific embodiments of the invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Within the spirit and scope of the appended claims, embodiments of the invention include many changes, modifications, and equivalents. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0031] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0032] Figure 1 This is a schematic diagram of the structure of an indoor air handling system provided in the embodiments of this application;

[0033] Figure 2 This is a schematic diagram of the installation of an indoor air handling device provided in the embodiments of this application on a flat balcony;

[0034] Figure 3 This is an isometric view of an air handling module in an indoor air handling device provided in the embodiments of this application;

[0035] Figure 4 This is an exploded view of an air handling module in an indoor air handling device provided in the embodiments of this application;

[0036] Figure 5 This is a schematic diagram of the internal structure layout of an indoor air handling device provided in the embodiments of this application;

[0037] Figure 6 This is a schematic diagram of the internal structure of an indoor air handling device with its control box hidden, as provided in the embodiments of this application.

[0038] Figure 7 This is a schematic diagram of the air supply module in an indoor air handling system provided in the embodiments of this application.

[0039] Reference numerals in the figures of this application:

[0040] 100. Outdoor unit;

[0041] 1. Compressor;

[0042] 11. Refrigerant inlet;

[0043] 12. Refrigerant outlet;

[0044] 200. Indoor air handling unit;

[0045] 21. First heat exchanger;

[0046] 211. First refrigerant flow channel;

[0047] 212. Water flow channel;

[0048] 213. Water pump;

[0049] 22. Second heat exchanger;

[0050] 221. Second refrigerant flow channel;

[0051] 222. Airflow channel;

[0052] 23. Fan;

[0053] 24. Refrigerant flow distribution component;

[0054] 31. Indoor air delivery terminal;

[0055] 32. Indoor radiant terminals;

[0056] 34. Air quality detection device;

[0057] 4. Air handling module;

[0058] 40. First shell;

[0059] 401. Front sidewall;

[0060] 402. Rear sidewall;

[0061] 403. Top wall;

[0062] 404. Bottom wall;

[0063] 405. Left side wall;

[0064] 406. Right side wall;

[0065] 411. New Opportunities;

[0066] 412. Return air vent;

[0067] 413. Exhaust vent;

[0068] 41. Fresh air fan;

[0069] 43. Air purification unit;

[0070] 45. Heating unit;

[0071] 46. ​​Electrical control box;

[0072] 5. Air supply module;

[0073] 50. Second shell;

[0074] 501. Air Inlet;

[0075] 502. Air vent;

[0076] 51. Air supply fan;

[0077] 511. First volute;

[0078] 512. Second volute;

[0079] 513. Enclosure panels;

[0080] 514. Cavity;

[0081] 515. Air outlet;

[0082] 516. Partition;

[0083] 600. Balcony;

[0084] 6. Suspended ceiling;

[0085] 61. First refrigerant connection pipe;

[0086] 62. Second refrigerant connection pipe;

[0087] 610. First set of openings;

[0088] 620. Second set of openings;

[0089] 63. Clean water flows into the pipeline;

[0090] 64. Solenoid valve;

[0091] 65. Wet film humidifier;

[0092] 66. First water receiving tray;

[0093] 67. Second water receiving tray;

[0094] H1, distance from the ground;

[0095] W1, distance from the wall;

[0096] X, horizontal direction;

[0097] Y, the height direction;

[0098] Z. Depth. Detailed Implementation

[0099] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.

[0100] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0101] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0102] This invention provides an indoor air handling device that enables the installation of the indoor unit of an air handling system in the limited space of a single-level apartment, thereby allowing the indoor air handling system to be used in a single-level apartment and achieving a better noise reduction effect during use.

[0103] Please refer to the following for comprehensive information. Figures 1 to 5This application specification provides an indoor air handling device 200, which may include: a separately configured air handling module 4 and an air supply module 5. The air supply module 5 is partially or entirely disposed above a suspended ceiling 6, and the air handling module 4 is wall-mounted below the suspended ceiling 6. The air handling module 4 has a first housing 40, in which a heat exchanger is disposed for direct and / or indirect treatment of indoor air. The air supply module 5 has a second housing 50, in which a fan 23 is disposed. The first housing 40 is provided with an air inlet and an air outlet 413, and the second housing 50 is provided with an air inlet 501. The air outlet 413 and the air inlet 501 are connected by a pipeline.

[0104] In this embodiment, the indoor air handling device 200 may include a separately configured air handling module 4 and an air supply module 5. By separating the air handling module 4 and the air supply module 5, the original indoor air handling device 200, which was originally a large size, can be divided into two relatively smaller sizes. When the air handling module 4 and the air supply module 5 are installed separately, they can be flexibly installed using suitable installation space in a single-level setting, thus facilitating the installation and application of the indoor air handling device 200 in single-level settings with limited installation space.

[0105] like Figure 2 As shown, for application scenarios with a suspended ceiling 6, the air supply module 5 can be installed on the upper part of the suspended ceiling 6, and the air handling module 4 can be wall-mounted on the lower part of the suspended ceiling 6. For the air supply module 5, a fan 23 is installed inside its second housing 50. Since the fan 23 is installed, it will generate some noise during operation. By installing the air supply module 5 at least partially on the upper part of the suspended ceiling 6, the fan 23 can be moved away from the user, and the noise generated by the fan 23 during operation can be isolated using the suspended ceiling 6. This not only enables the installation and application of the indoor air handling device 200 in a single-level setting but also ensures that the indoor air handling device 200 achieves a better noise reduction effect during operation, guaranteeing a better user experience.

[0106] For single-level apartments, installation space is limited, and there is usually no separate equipment room, making the location for installing the indoor air handling unit 200 very restrictive. Furthermore, in single-level apartment scenarios, users expect efficient use of all interior space and do not want to install a large, independent machine. Therefore, one of the main installation locations for the indoor air handling unit 200 is the balcony 600. Therefore, in this embodiment, the indoor air handling unit 200 is primarily installed on the balcony 600 as an example. Of course, this embodiment does not exclude the possibility of installing the indoor air handling unit 200 in other scenarios.

[0107] When the indoor air handling unit 200 is installed on the balcony 600, the air supply module 5 can be installed above the ceiling 6 of the balcony 600, and the air handling module 4 can be wall-mounted on the side wall of the balcony 600. For aesthetic reasons, the air handling module 4 can be concealed in a cabinet on the balcony 600.

[0108] In this embodiment, the air handling module 4 has a first housing 40, which is mainly used to install core functional components such as heat exchangers. The first housing 40 is provided with an air inlet and an air outlet 413. The air supply module 5 has a second housing 50, which is mainly used to install a fan 23. The second housing 50 is provided with an air outlet 502 and an air inlet 501. The air outlet 413 of the first housing 40 is connected to the air inlet 501 of the second housing 50 via a pipe. After the fan 23 is started, air flowing into the first housing 40 through the air inlet can flow into the second housing 50 through its air outlet 413 and the air inlet 501.

[0109] In one embodiment, the first housing 40 has a lateral dimension in the transverse direction and a longitudinal dimension in the longitudinal direction, wherein the lateral dimension is greater than the longitudinal dimension.

[0110] In this embodiment, the first housing 40 can be a hollow box structure. Of course, the first housing can also have other regular or irregular structures. In this embodiment, the first housing 40 is mainly illustrated as a cuboid.

[0111] The first housing 40 has a lateral dimension (i.e., length) and a longitudinal dimension (i.e., height), wherein the lateral dimension is greater than the longitudinal dimension. When the air handling module 4 is horizontally positioned, its lateral dimension extends along the horizontal direction X, and its longitudinal dimension extends along the vertical direction Y. This arrangement facilitates increasing the ground clearance of the air handling module 4, minimizing interference between its height and the user's head. When the air handling module 4 has a higher ground clearance, appliances such as washbasins and washing machines can be installed below it for operation, thus effectively utilizing the space beneath the air handling module 4.

[0112] Please refer to the following: Figure 2 , Figure 4 , Figure 5 and Figure 6 In one embodiment, the air handling module 4 is installed against the wall and arranged horizontally. The heat exchanger includes a first heat exchanger 21 and a second heat exchanger 22. The first heat exchanger 21 and the second heat exchanger 22 are arranged horizontally in the first housing 40. The first heat exchanger 21 is used for heat exchange between the refrigerant and the air flowing in from the air inlet. The second heat exchanger 22 is used for heat exchange between the refrigerant and water. The water after heat exchange is used to supply the indoor radiant duct to treat the indoor air.

[0113] In this embodiment, the heat exchanger may include a first heat exchanger 21 and a second heat exchanger 22. The first heat exchanger 21 is used for heat exchange between the refrigerant and the air flowing in from the air inlet. Specifically, the first heat exchanger 21 can be a plate heat exchanger, or it can be other types of heat exchangers. In this embodiment, a plate heat exchanger is used as an example. The first heat exchanger 21 can be plate-shaped with a certain thickness. The thickness of the first heat exchanger 21 is typically the minimum dimension relative to its length and width.

[0114] The second heat exchanger 22 is used for heat exchange between the refrigerant and water. Specifically, the second heat exchanger 22 can be a finned heat exchanger or other types of heat exchangers. In this embodiment, a finned heat exchanger is used as an example. The second heat exchanger 22 can also be plate-shaped with a certain thickness. The thickness of the second heat exchanger 22 is usually the minimum dimension relative to its length and width.

[0115] The first heat exchanger 21 and the second heat exchanger 22 are arranged laterally within the first housing 40, specifically such that the thickness directions of both the first heat exchanger 21 and the second heat exchanger 22 are along the lateral dimension of the air handling module 4. This arrangement maximizes the utilization of the lateral dimension of the air handling module 4, allowing the core components to be installed and arranged within the first housing 40 of the air handling module 4. Furthermore, it effectively controls the lateral dimension of the air handling module 4, preventing it from becoming excessively large and improving its adaptability. Specifically, the lateral dimension of the air handling module 4 (i.e., the length of the first housing 40) can be controlled within 900 mm, thus enabling it to adapt to the depth dimensions of all balconies 600.

[0116] In one embodiment, the first refrigerant flow channel 211 of the first heat exchanger 21 has a first refrigerant inlet and a first refrigerant outlet, and the second refrigerant flow channel 221 of the second heat exchanger 22 has a second refrigerant inlet and a second refrigerant outlet. The second heat exchanger 22 includes a water flow channel 212, which has a water flow channel 212 inlet and a water flow channel 212 outlet. The air inlet includes a fresh air inlet 411 and a return air inlet 412. The fresh air inlet 411 and the exhaust outlet 413 are both located on the top wall 403 of the first housing 40. The first refrigerant... The refrigerant channel 211 and the second refrigerant channel 221 are connected to the refrigerant channel of the outdoor unit 100. The first refrigerant channel 211, the second refrigerant channel 221, and the water channel 212 all pass through the top wall 403 of the first housing 40, or the first refrigerant channel 211, the second refrigerant channel 221, and the water channel 212 are all located inside the first housing 40, and the refrigerant channel of the outdoor unit 100 passes through the top wall 403 of the first housing 40. The return air vent 412 is located on the side wall or bottom wall 404 of the first housing 40.

[0117] In this embodiment, the first heat exchanger 21 may include a plate-shaped body. The first refrigerant flow channel 211 of the first heat exchanger 21 includes a first internal refrigerant flow channel disposed inside the plate-shaped body, a first refrigerant inlet and a first refrigerant outlet disposed on the plate-shaped body, and a first external refrigerant flow channel connected to the first internal refrigerant flow channel through the first refrigerant inlet and the second refrigerant outlet. The first refrigerant inlet may specifically be in the form of a refrigerant connector for connecting a refrigerant pipe, and the first refrigerant outlet may specifically be in the form of a refrigerant connector for connecting a refrigerant pipe.

[0118] The second heat exchanger 22 may include a heat exchange body for flowing refrigerant, which is generally plate-shaped. The second refrigerant flow channel 221 of the second heat exchanger 22 includes: a second internal refrigerant flow channel disposed inside the heat exchange body, a second refrigerant inlet and a second refrigerant outlet disposed on the heat exchange body, and a second external refrigerant flow channel connected to the second internal refrigerant flow channel through the second refrigerant inlet and the second refrigerant outlet. The second refrigerant inlet may specifically be in the form of a refrigerant connector for connecting a refrigerant pipe, and the second refrigerant outlet may also specifically be in the form of a refrigerant connector for connecting a refrigerant pipe.

[0119] The first and second refrigerant inlets can be connected to the first junction (e.g., a tee connector) via a first external refrigerant pipeline, and then connected to the outdoor unit 100 via the outdoor unit 100's refrigerant pipeline (e.g., the first refrigerant connecting pipe 61 connected to the outdoor unit 100's refrigerant inlet 11, and the second refrigerant connecting pipe 62 connected to the outdoor unit 100's refrigerant outlet 12). Similarly, the second and second refrigerant outlets can be connected to the second junction (e.g., a tee connector) via a second external refrigerant pipeline, and then connected to the outdoor unit 100 via the outdoor unit 100's refrigerant pipeline (the first refrigerant connecting pipe 61 and the second refrigerant connecting pipe 62).

[0120] The top wall 403 of the first housing 40 may have a first set of openings 610 for the refrigerant piping of the outdoor unit 100 and a second set of openings 620 for the water channel 212. In this configuration, the first refrigerant channel 211, the second refrigerant channel 221, and the water channel 212 are all located inside the first housing 40, and the refrigerant channel of the outdoor unit 100 passes through the openings on the top wall 403 of the first housing 40. This arrangement reduces the number of openings and simplifies the connection and arrangement of external refrigerant piping located outside the first housing 40.

[0121] Alternatively, two sets of openings for passing through refrigerant channels can be provided on the top wall 403 of the first housing 40, each set of openings including two openings. One set of openings is used for passing through the first refrigerant channel 211, and the other set of openings is used for passing through the second refrigerant channel 221. When the first refrigerant channel 211 and the second refrigerant channel 221 pass through the top wall 403 of the first housing 40 and then connect to the refrigerant channel of the outdoor unit 100, it is convenient to connect and maintain the refrigerant pipeline outside the first housing 40.

[0122] In this embodiment, since the upper part of the top wall 403 of the first housing 40 also has the height space of the ceiling 6, when the fresh air inlet 411 and the exhaust air outlet 413 are both located on the top wall 403 of the first housing 40, and the first refrigerant channel 211, the second refrigerant channel 221, and the water channel 212 all pass through the top wall 403 of the first housing 40, or when the first refrigerant channel 211, the second refrigerant channel 221, and the water channel 212 are all located inside the first housing 40 and the refrigerant channel of the outdoor unit 100 passes through the top wall 403 of the first housing 40, the ceiling 6 space can be used for pipe connection, realizing the arrangement of refrigerant pipes, water pipes, and air ducts in the ceiling 6 space. In addition, using the ceiling 6 space for pipe connection is also beneficial for protecting the pipes and ensuring the aesthetics of the installation.

[0123] Considering the extremely limited installation space in a single-level environment, especially with the lateral dimensions and ground clearance already largely utilized, leaving little usable space, if the openings requiring external piping were located on the left / right side walls of the first housing 40, the lateral dimensions might be too large, preventing the first housing 40 from being properly arranged in a single-level environment. If the openings were located on the front / rear side walls of the first housing 40, the front-to-back dimensions of the first housing 40 would increase, creating a feeling of confinement and requiring greater cabinet depth, especially in scenarios with cabinets. If the openings were located on the bottom wall 404 of the first housing 40, the ground clearance of the air handling module 4 would be reduced, potentially interfering with the user's head and affecting the normal operation of the equipment below the air handling module 4. Therefore, the piping arrangement in this embodiment maximizes the optimization of the space arrangement of the first housing 40 below the ceiling 6, maximizing the installation adaptability of the first housing 40.

[0124] The specific settings for each of the above parts will be described below.

[0125] In this embodiment, the water in the water channel 212 can exchange heat with the refrigerant in the first refrigerant channel 211. The cooled water / heated water after heat exchange with the refrigerant in the first refrigerant channel 211 can be supplied to the indoor radiant terminal 32. The indoor radiant terminal 32 releases cold or heat into the room to regulate the indoor temperature. The water channel 212 has a water channel 212 inlet and a water channel 212 outlet. A first water passage can be provided between the water channel 212 inlet and the plate-shaped body. A water pump 213 can be provided on the first water passage to provide driving force for water circulation. The water channel 212 inlet can be in the form of a water pipe connector for connecting a return water pipe.

[0126] A second water passage can be provided between the outlet of the water channel 212 and the plate-shaped body. This second water passage can be equipped with a flow switch to control the flow of water. Specifically, the outlet of the water channel 212 can be in the form of a water pipe connector for connecting a water outlet pipe.

[0127] In this embodiment, the exhaust port 413 of the first housing 40 is located on the top wall 403 of the first housing 40. When the exhaust port 413 is located on the top wall 403 of the first housing 40, the exhaust port 413 can be efficiently and conveniently connected to the air supply module 5 located above the ceiling 6 through the shortest connection channel.

[0128] Specifically, the exhaust port 413 can be rectangular or quasi-rectangular, with its length direction perpendicular to the transverse direction (i.e., the length direction) of the first housing 40. The exhaust port 413 can be symmetrically arranged about the depth Z direction (i.e., the thickness direction) of the first housing 40, which helps to ensure the uniformity of the air outlet 413 of the first housing 40.

[0129] The air flowing in from the air inlet needs to be regulated in temperature and / or humidity and / or cleanliness by flowing laterally through the components inside the first housing 40 before being discharged from the air outlet 413. Devices for regulating the temperature and / or humidity and / or cleanliness of the air can be arranged sequentially along the lateral side of the first housing 40. The air outlet 413 and the air inlet can be located on opposite sides. The air outlet 413 can be located on the top wall 403 near the first side wall of the first housing 40. Figure 3 or Figure 4 The right sidewall 406 shown in the diagram, the air inlet can be close to the second sidewall of the first housing 40 ( Figure 3 or Figure 4 The left side wall 405 shown in the diagram allows air entering from the air inlet to flow sufficiently through the temperature and / or humidity and / or cleanliness processing components within the first housing 40.

[0130] The air inlet may include a fresh air inlet 411 connected to the outside and a return air inlet 412 connected to the inside. When the fan 23 is started, a negative pressure can be formed inside the first housing 40 of the indoor air handling unit 200, which introduces outdoor air into the first housing 40 through the fresh air inlet 411 and indoor air into the first housing 40 through the return air inlet 412, and the two mix inside the first housing 40.

[0131] Generally, there is a certain difference in temperature and humidity between outdoor fresh air and indoor air. When outdoor fresh air is directly introduced into the room, it will affect the indoor temperature and humidity, causing it to deviate from the preset target temperature and humidity. However, in this embodiment, the return air introduced into the room through the return air vent 412, compared to the case of introducing fresh air entirely from the outside, can effectively utilize the cooling or heating capacity of the indoor return air by introducing return air with the same temperature and humidity as the indoor air, thus reducing the fluctuation of indoor temperature and humidity caused by the total introduced air. This reduces the load on the indoor air handling unit 200 required for temperature and humidity regulation, saving energy.

[0132] The fresh air inlet 411 can be located on the top wall 403 of the first housing 40. The fresh air inlet 411 needs to be connected to the outside air through a pipe. When the fresh air inlet 411 is installed on the top wall 403, it can utilize the space above the ceiling 6 to install a bend structure in a concealed manner. After passing through the wall of the balcony 600, the pipe connects to the outside air.

[0133] Furthermore, the fresh air inlet 411 can be positioned close to the rear side wall 402 of the first housing 40. When the fresh air inlet 411 is positioned close to the rear side wall 402 of the first housing 40, the fresh air inlet 411 can be connected to the wall through a short inlet pipe with minimal bends, thereby ensuring that external fresh air can be supplied into the first housing 40 with low resistance and a large flow rate. In addition, when the fresh air inlet 411 is positioned near the rear side wall 402, interference with other pipes at the top can be avoided, ensuring that the pipes above the top wall 403 of the first housing 40 are arranged in the simplest and most reasonable way.

[0134] In this embodiment, the openings on the top wall 403 of the first housing 40 for passing through water pipes and refrigerant pipes can be located between the exhaust port 413 and the fresh air inlet 411, specifically in the middle of the top wall 403, corresponding to the positions of the first heat exchanger 21 and the second heat exchanger 22 inside the first housing 40. This arrangement helps to reduce the length of the water and refrigerant pipes connecting the first heat exchanger 21 to the top wall 403 within the first housing 40, and also helps to reduce the length of the refrigerant pipe connecting the second heat exchanger 22 to the top wall 403 within the first housing 40. This results in a compact pipe arrangement inside the first housing 40, requiring less space, and thus helps to achieve a miniaturized design for the first housing 40.

[0135] The return air vent 412 is located on the side wall or bottom wall 404 of the first housing 40.

[0136] In this embodiment, the return air vent 412 can be located on the side wall of the first housing 40 or on the bottom wall 404 of the first housing 40. The return air vent 412 is part of the air inlet and is also located away from the exhaust vent 413. When the exhaust vent 413 can be located on the top wall 403 and close to the first side wall of the first housing 40, and when the fresh air vent 411 can be located on the top wall 403 of the first housing 40 and close to the second side wall of the first housing 40, the return air vent 412 can be located on the second side wall or on the bottom wall 404 close to the second side wall.

[0137] In this embodiment, the fan 23 may include a fresh air fan 41 and a supply air fan 51. When the fresh air fan 41 is activated, it can simultaneously generate negative pressure near the fresh air inlet 411 and the return air inlet 412, thereby drawing both external and indoor air into the first housing 40. That is, when the fresh air inlet 411 is located on the top wall 403 and the return air inlet 412 is located on the side wall or bottom wall 404 near the fresh air inlet 411, the same fresh air fan 41 can be used to draw in both types of air.

[0138] like Figure 2 As shown, in one embodiment, the distance W1 between the front sidewall 401 of the first housing 40 and the wall is 550 mm to 600 mm; the distance H1 between the bottom wall 404 of the first housing 40 and the ground is 1.7 m to 1.8 m.

[0139] In this embodiment, the first housing 40 has opposing front sidewalls 401 and rear sidewalls 402, opposing top walls 403 and bottom walls 404, and opposing left sidewalls 405 and right sidewalls 406. When the air handling module 4 is installed against a wall, the distance W1 from the front sidewall 401 of the first housing 40 to the wall is 500 mm to 600 mm. This allows the air handling module 4 to be installed in a standard-sized cabinet (typically with a depth Z of 600 mm) (e.g., a wall cabinet), achieving concealed installation that is both practical and aesthetically pleasing. The wall cabinet is located below and close to the ceiling 6. The distance from the ceiling 6 to the top of the wall is 300 mm. After the air treatment module 4 is installed on the balcony 600 of the flat floor, the distance H1 of the bottom wall 404 of the first housing 40 from the ground can be controlled between 1.7 meters and 1.8 meters. The above-mentioned distance H1 from the ground can leave space below the first housing 40 for the installation of sinks, washing machines, etc. At the same time, it can also facilitate users to operate below the first housing 40 without interfering with the first housing 40. In addition, the above-mentioned height distance also makes it convenient for users to open the wall cabinet to inspect or replace the air treatment module 4.

[0140] It should be noted that the specific value of the ground distance H1 of the bottom wall 404 of the first housing 40 can be customized between 1.7 meters and 1.8 meters according to the user's needs. For example, for taller users, the ground distance H1 of the bottom wall 404 of the first housing 40 can be set higher; for shorter users, the ground distance H1 of the bottom wall 404 of the first housing 40 can be set lower.

[0141] In one embodiment, the air handling module 4 further includes an air purification unit 43, the air purification unit 43, the second heat exchanger 22, and the first heat exchanger 21 being arranged laterally in the first housing 40; the front sidewall 401 of the first housing 40 is detachable or can be opened to remove the air purification unit 43.

[0142] In this embodiment, the air handling module 4 may also include an air purification unit 43. Depending on the location of the air purification unit 43, its functions and forms may vary slightly.

[0143] For example, the air purification unit 43 may include a first filter element disposed between the air inlet and the second heat exchanger 22. Along the airflow direction, the air purification unit 43 may be located downstream of the air inlet and upstream of the second heat exchanger 22. The air purification unit 43 is used to purify the air flowing into the air inlet. When the air inlet includes a fresh air inlet 411 and a return air inlet 412, the first filter element may include a fresh air filter element disposed downstream of the fresh air inlet 411 and a medium-efficiency filter element disposed downstream of the return air inlet 412. It should be noted that the medium-efficiency filter element may be disposed downstream of the return air inlet 412. For example, when the return air inlet 412 is disposed on the second side wall of the first housing 40, the medium-efficiency filter element may be disposed against the second side wall, either inside or outside the first housing 40. When the medium-efficiency filter element is placed inside the first housing 40, the first housing 40 can be used to protect the medium-efficiency filter element, and at the same time, the maximum lateral size of the whole machine processing module can be reduced.

[0144] Alternatively, the air purification unit 43 may include a second filter element disposed between the second heat exchanger 22 and the air outlet 502. Specifically, along the air flow direction, the air purification unit 43 may be disposed downstream of the second heat exchanger 22 and upstream of the exhaust outlet 413. The air purification unit 43 is used to purify the air after heat exchange through the second heat exchanger 22 before discharging it through the exhaust outlet 413. Specifically, the second filter element may be a high-efficiency filter element. Since the exhaust outlet 413 is disposed on the top wall 403 of the first housing 40, the air flow path within the first housing 40 is generally transverse. In order to uniformly guide the transversely flowing air to the exhaust outlet 413 of the top wall 403, the high-efficiency filter element may be inclined at a certain angle, and its projection toward the exhaust outlet 413 may cover the exhaust outlet 413, so as to ensure that the air flowing out of the exhaust outlet 413 is filtered by the high-efficiency filter element.

[0145] Alternatively, the air purification unit 43 may include a first filter element disposed between the air inlet and the second heat exchanger 22, and a second filter element disposed between the second heat exchanger 22 and the air outlet 502. Specifically, the specific arrangement and form of the first and second filter elements can be referred to the above description, and will not be repeated here. It should be noted that the specific forms of the first and second filter elements described in this application are merely illustrative examples. Those skilled in the art may make other modifications based on the technical essence of this application, but as long as the functions and effects achieved are the same as or similar to those of this application, they should all be covered within the scope of protection of this application.

[0146] In this embodiment, the first heat exchanger 21 and the second heat exchanger 22 are arranged laterally in the first housing 40, specifically, both the first heat exchanger 21 and the second heat exchanger 22 are arranged along the lateral dimension of the air handling module 4. Furthermore, the air purification unit 43 can also be arranged laterally within the first housing 40. Taking the air purification unit 43 as a filter element with a predetermined thickness as an example, the thickness direction of the filter element is arranged along the lateral dimension of the air handling module 4. This arrangement maximizes the utilization of the lateral dimension of the air handling module 4, allowing the core components to be installed and arranged within the first housing 40 of the air handling module 4. Furthermore, it allows for effective control of the lateral dimension of the air handling module 4, preventing it from becoming excessively large and improving the adaptability of the air handling module 4 installation. Specifically, the lateral dimension of the air handling module 4 (i.e., the length dimension of the first housing 40) can be controlled to within 900 mm or even smaller, thereby enabling it to adapt to the depth dimensions of all balconies 600.

[0147] Furthermore, the air purification unit 43 is a relatively consumable component and needs to be replaced periodically after a predetermined period of use. When it is inserted into the first housing 40 with its thickness facing the front and rear side walls 402 and its width dimension, the air purification unit 43 can be replaced by plugging and unplugging.

[0148] The front sidewall 401 of the first housing 40 is detachable or openable for removing the air purification unit 43. When the front sidewall 401 of the first housing 40 is detachable or openable, the air purification unit 43 can be easily replaced.

[0149] In one embodiment, the air inlet includes a fresh air inlet 411 and a return air inlet 412. Along the direction of air flow, the air inlet, the second heat exchanger 22, the first heat exchanger 21, and the air purification unit 43 are arranged horizontally in sequence.

[0150] In this embodiment, the air inlet may include a fresh air inlet 411 connected to the outside and a return air inlet 412 connected to the inside. Outside air can flow into the first housing 40 through the fresh air inlet 411, and indoor air can flow into the first housing 40 through the return air inlet 412. After the outside air and indoor air flow into the first housing 40, they need to mix and exchange heat with the second heat exchanger 22. The air after exchanging heat with the second heat exchanger 22 is then purified by the air purification unit 43 and discharged from the first housing 40 through the exhaust port 413. Therefore, the air inlet, the second heat exchanger 22, and the air purification unit 43 are arranged sequentially along the airflow channel 222.

[0151] For the first heat exchanger 21, a temperature sensor for detecting water temperature is usually installed on the water flow channel 212. If the first heat exchanger 21 is located downstream of the second heat exchanger 22, then in cooling mode, if the temperature detected by the temperature sensor is too low when the cold air flowing through the second heat exchanger 22 flows through the first heat exchanger 21, it may trigger the anti-freeze protection mechanism of the first heat exchanger 21, which may cause the corresponding component to malfunction, thereby increasing energy consumption and potentially reducing the lifespan of the component.

[0152] Furthermore, regarding the first heat exchanger 21 and the second heat exchanger 22 within the first housing 40, both are equipped with refrigerant flow channels. For example, during cooling, the air flowing in from the air inlet is at a relatively high temperature, and condensation may occur on the surfaces of the first heat exchanger 21 and the second heat exchanger 22 as it flows through them. The air purification unit 43 itself is a component that is not prone to condensation. When the air inlet, the first heat exchanger 21, the second heat exchanger 22, and the air purification unit 43 are arranged sequentially along the airflow direction, it is equivalent to separating the components prone to condensation from the air purification unit 43. This facilitates centralized treatment of condensation generated by these components. For example, a water collection tray for collecting condensate can be provided at the bottom of the first heat exchanger 21 and the second heat exchanger 22. Furthermore, achieving dry and wet separation helps ensure a longer service life for the air purification unit 43.

[0153] In one embodiment, the second heat exchanger 22 is vertically disposed close to or adjacent to the rear sidewall 402 of the first housing 40.

[0154] In this embodiment, when the first heat exchanger 21 is vertically arranged close to or adjacent to the rear sidewall 402 or front sidewall 401 of the first housing 40, along the transverse direction ( Figure 2 As shown in the horizontal direction X, a space can be left open to facilitate the full mixing of indoor air flowing in from the air inlet (specifically, the external space flowing in from the fresh air inlet 411 and the indoor air flowing in from the return air inlet 412). This not only makes the temperature of the mixed air more uniform, but also makes the flow field of the mixed air more stable. When it passes through the second heat exchanger 22, it can perform heat exchange more fully and improve the heat exchange efficiency.

[0155] Furthermore, when the first heat exchanger 21 is vertically positioned close to or adjacent to the rear sidewall 402 or front sidewall 401 of the first housing 40, it effectively ensures that at least the space in the middle of the second heat exchanger 22 is left unoccupied, and the heat exchange efficiency in the middle of the second heat exchanger 22 is the highest. In this case, the mixed air can flow along the flow channel in the middle of the second heat exchanger 22 to the second heat exchanger 22, achieving sufficient contact and heat exchange with the middle region of the second heat exchanger 22, thereby achieving a high heat exchange efficiency.

[0156] The air handling module 4 may further include a controller, which may be in the form of an electronic control board or an electronic control box 46. When the first heat exchanger 21 is vertically arranged near the rear side wall 402 of the first housing 40, the controller may be vertically arranged near the front side wall 401 of the first housing 40; when the first heat exchanger 21 is vertically arranged near the front side wall 401 of the first housing 40, the controller may be vertically arranged near the rear side wall 402 of the first housing 40. This ensures that the flow channel in the middle of the second heat exchanger 22 is not obstructed. Furthermore, since the controller is located upstream of the second heat exchanger 22, airflow can also be used to dissipate heat from the controller.

[0157] Please refer to the following: Figure 4 , Figure 5 and Figure 6 In one embodiment, the air treatment module 4 further includes a wet film humidifier 65 disposed within the first housing 40. The wet film humidifier 65 is connected to a purified water inflow pipe 63, through which purified water can flow into the wet film humidifier 65. The purified water inflow pipe 63 passes through the top wall 403 of the first housing 40. A solenoid valve 64 is also disposed on the purified water inflow pipe 63, which is used to control the opening and closing of the purified water inflow pipe 63.

[0158] In this embodiment, the air handling module 4 may also be equipped with a humidity regulating mechanism, which can be used to humidify the air flowing into the room. In particular, when the indoor air handling system is running in heating mode, a humidity regulating mechanism can be provided on or downstream of the second heat exchanger 22. When the mixed gas consisting of externally introduced air and indoor return air flows through the second heat exchanger 22, it can come into contact with the humidity regulating mechanism, thereby increasing the humidity of the air supplied to the room and thus achieving the purpose of regulating indoor humidity.

[0159] The principle by which the humidity regulating mechanism regulates humidity can vary depending on the form of the humidity regulating mechanism. For example, the humidity regulating mechanism can be in the form of a wet film humidifier 65 located upstream of the second heat exchanger 22. When the humidity regulating mechanism is a wet film humidifier 65, the wet film humidifier is connected to a clean water inflow pipe 63, through which clean water can flow into the wet film humidifier 65, providing the clean water required for humidification.

[0160] Specifically, the purified water inflow pipe 63 can be installed on the top wall 403 of the first housing 40, close to the installation positions of the refrigerant pipe and water pipe on the top wall 403. On the one hand, this can minimize the installation volume required by the indoor air handling system. On the other hand, when multiple pipes are centrally installed, it is convenient for operators to perform centralized installation and maintenance operations in the same location.

[0161] A solenoid valve is also installed on the purified water inlet pipe 63. The solenoid valve is used to control the opening and closing of the purified water inlet pipe. By controlling the opening and closing time of the solenoid valve, the duration of purified water supply to the wet film humidifier 65 can be controlled, thereby regulating the humidity parameters supplied by the wet film humidifier 65. Of course, the regulation of the humidity parameters of the wet film humidifier 65 is not limited to the above examples. For example, the humidity can also be regulated by controlling the amount of purified water sprayed onto the wet film of the wet film humidifier 65, etc.

[0162] In one embodiment, the air inlet includes a fresh air inlet 411 and a return air inlet 412. Along the direction of air flow, the air inlet, the first heat exchanger 21, the second heat exchanger 22, the wet film humidifier 65, and the air purification unit 43 are arranged in sequence.

[0163] Based on the above-mentioned arrangement of the air inlet, the first heat exchanger 21, the second heat exchanger 22, and the air purification unit 43 along the direction of air flow, this embodiment of the application will provide a supplementary explanation by adding a wet film humidifier 65 as an example.

[0164] In this embodiment, for the implementation with the wet film humidifier 65, the wet film humidifier 65 can be located downstream of the second heat exchanger 22 and upstream of the air purification unit 43 along the air flow direction. This arrangement allows the wet film humidifier 65 to humidify the air processed by the second heat exchanger 22. Furthermore, since the wet film humidifier 65 may drip water downwards during use, placing it close to the second heat exchanger 22 facilitates unified drainage of the wet film humidifier 65 and other components prone to generating refrigerant water.

[0165] In one embodiment, the air handling module 4 may further include a first water receiving tray 66, which is located below the first heat exchanger 21 and the second heat exchanger 22 and is used to receive the condensate from the first heat exchanger 21 and the second heat exchanger 22.

[0166] Alternatively, the air handling module 4 may further include a first water receiving tray 66 and a wet film humidifier 65. The first water receiving tray 66 is located below the first heat exchanger 21, the second heat exchanger 22 and the wet film humidifier 65, and is used to receive the condensate from the first heat exchanger 21, the second heat exchanger 22 and the wet film humidifier 65.

[0167] In this embodiment, for components prone to condensation, a first water collection tray 66 is provided, positioned directly below the component to collect the condensate and discharge it centrally. For example, when the component prone to condensation includes a first heat exchanger 21 and a second heat exchanger 22, the first water collection tray 66 is located directly below the first heat exchanger 21 and the second heat exchanger 22; when the component prone to condensation includes a first heat exchanger 21, a second heat exchanger 22, and a wet film humidifier 65, the first water collection tray 66 is located directly below the first heat exchanger 21, the second heat exchanger 22, and the wet film humidifier 65.

[0168] Furthermore, the air handling module 4 may also include a second water receiving tray 67, which is located below the first water receiving tray 66 and the downward projection of the first water receiving tray 66 falls entirely into the second water receiving tray 67. The first water receiving tray 66 has a first drain pipe, and the second water receiving tray 67 has a second drain pipe. The first drain pipe is inserted into the second drain pipe and is spaced apart from the outer wall of the first drain pipe and the inner wall of the second drain pipe.

[0169] In this embodiment, the air handling module 4 may also include a second water receiving tray 67, which is used to receive a small amount of condensate that may be generated by other components and to discharge this condensate in a timely manner to prevent it from accumulating in the first housing 40 and breeding bacteria, etc.

[0170] The second water receiving tray 67 is located directly below the first water receiving tray 66. Specifically, the second water receiving tray 67 can be installed on the bottom wall 404 of the first housing 40. The surface area of ​​the second water receiving tray 67 can be the same as or similar to the surface area of ​​the bottom wall 404.

[0171] The first water receiving tray 66 is provided with a first drain pipe, and the second water receiving tray 67 is provided with a second drain pipe. The upper first drain pipe can be inserted into the lower second drain pipe and is spaced apart from the inner wall of the second drain pipe, leaving a flow gap for draining condensate from the second water receiving tray.

[0172] When the first drain pipe and the second drain pipe are installed inside and outside each other, the pipe layout can be simplified and the number of openings on the first housing 40 can be reduced, making the structure inside the first housing 40 more compact. In addition, since the downward projection of the first water receiving tray 66 falls completely into the second water receiving tray 67, even if the first drain pipe of the first water receiving tray 66 is blocked or other problems occur, and the condensate accumulated in the first water receiving tray 66 overflows, it can flow into the second water receiving tray 67 under the action of gravity, thereby using the second water receiving tray 67 for drainage, ensuring the reliability of drainage.

[0173] like Figure 7 As shown, in one embodiment, the air supply module 5 includes a fan box and an air supply fan 51, the air supply fan 51 being disposed within the fan box, and the impeller of the air supply fan 51 rotating along the longitudinal direction (i.e., Figure 2 The height shown extends in the Y direction.

[0174] In this embodiment, the air supply module 5 may include a fan housing and an air supply fan 51 disposed within the fan housing. To achieve better noise reduction, the air supply module 5, which has a second housing 50, can be installed completely above the ceiling 6. To install the air supply module 5 on the ceiling 6, which has a limited height, the air supply fan 51 is installed horizontally.

[0175] Specifically, for the air supply fan 51, the thickness of its impeller is relatively small compared to its outer perimeter. To minimize the size required by the air supply module 5 in the height direction Y, the rotation axis of the impeller of the air supply fan 51 extends along the longitudinal direction. Of course, in this embodiment, it is not excluded that the rotation axis of the impeller of the air supply fan 51 forms a certain angle with the longitudinal direction. In principle, any embodiment that ensures the second housing 50 of the air supply module 5 can be installed above the ceiling 6 can be applied to this embodiment. When the rotation axis of the impeller of the air supply fan 51 extends entirely along the longitudinal direction, the size required by the air supply module 5 in the height direction Y is minimized.

[0176] In one embodiment, the blower 51 includes a first volute 511, a first impeller disposed within the first volute 511, a second volute 512, and a second impeller disposed within the second volute 512. The rotation axes of the first impeller and the second impeller are offset and both extend in the longitudinal direction. At least a portion of the front part of the surrounding plate 513 of the first volute 511 and at least a portion of the rear part of the surrounding plate 513 of the second volute 512 are the same plate, or at least a portion of the front part of the surrounding plate 513 of the first volute 511 and at least a portion of the rear part of the surrounding plate 513 of the second volute 512 are different plates that are close to each other.

[0177] For a suspended ceiling 6 used on a balcony 600, its height is typically less than 350 mm, making it difficult to fully install existing large fans above it. In a specific scenario where a clothes rack or similar device needs to be installed below the suspended ceiling 6, the height of the suspended ceiling 6 usually needs to be further reduced, typically to within 250 mm. This makes it even more difficult to fully install existing large fans above the suspended ceiling 6.

[0178] In this embodiment, the air supply fan 51 can be composed of two smaller fans. Combining two smaller fans with one larger fan reduces the installation size of the air supply fan 51, making the size of the second housing 50 for mounting the air supply fan 51 as small as possible, allowing it to be installed completely above the ceiling 6. Furthermore, combining two smaller fans with one larger fan also reduces the noise generated during operation. Specifically, when the large fan and the two smaller fans operate at the same speed, the noise generated by the large fan is at least 3 decibels higher.

[0179] In order to minimize the space required during the actual installation of the two fans 23, the rotation shafts of both fans 23 extend in the longitudinal direction. Furthermore, the first impeller rotation shaft of one fan 23 and the second impeller rotation shaft of the other fan 23 can be staggered.

[0180] Specifically, at least a portion of the front part of the surrounding plate 513 of the first volute 511 and at least a portion of the rear part of the surrounding plate 513 of the second volute 512 are made of the same plate, and adjacent surrounding plates 513 of the two volutes can be shared, thereby helping to reduce volume. Furthermore, at least a portion of the front part of the surrounding plate 513 of the first volute 511 and at least a portion of the rear part of the surrounding plate 513 of the second volute 512 are different plates that are close to each other. The gap between the two close surrounding plates 513 can be zero or a small dimension. The specific value of this gap can vary depending on the specific mechanism of the fan 23, such as the curvature of the surrounding plate 513, and this application does not impose a single numerical limitation.

[0181] In one embodiment, the fan box is horizontally placed above the suspended ceiling 6. A first air inlet 501 is provided on each of the two adjacent sides of the fan box. The fan box also includes a sealing plate. When one of the first air inlets 501 is connected to the exhaust port 413 through the pipeline, the sealing plate is used to block the other first air inlet 501.

[0182] In this embodiment, the fan box has a box-like structure with relative length, width, and thickness dimensions. The thickness dimension can be the minimum dimension. The fan box can be horizontally placed above the suspended ceiling 6, specifically, the thickness dimension of the fan box extends along the height direction Y. The fan box has opposite top and bottom surfaces, opposite front and rear sides, and opposite left and right sides. Taking the right side of the fan box as an example, an air outlet 502 can be provided on the right side, while first air inlets 501 can be provided on the bottom and front sides respectively. During installation, one of the first air inlets 501 can be rotated to connect to the exhaust outlet 413 via a pipe, while the other first air inlet 501 can be blocked by a sealing plate, thereby improving the adaptability of the fan box installation.

[0183] like Figure 7 As shown, in one embodiment, a cavity 514 is provided between the air outlet 515 of the blower 51 and the air outlet 502 of the second housing 50. This cavity 514 is a hollow cavity with a certain flow cross-sectional dimension. Specifically, the cavity 514 can be formed by a portion of the second housing 50 and a partition 516 disposed at the air outlet 515. For example, the cavity 514 can be a regular cuboid chamber, with the air outlet 515 and the air outlet 502 directly opposite each other. Of course, the specific structure of the cavity 514 is not limited to the above examples, and those skilled in the art can make adaptive adjustments according to actual needs.

[0184] The air discharged from the air outlet 515 of the blower 51 first passes through the cavity 514 for noise reduction before being discharged through the air outlet 502 of the second housing 50, thus ensuring a better quiet experience for the user. The flow cross-sectional dimension of the cavity 514 is larger than the flow area of ​​the air outlet 515. When airflow flows from the smaller flow area of ​​the air outlet 515 into the larger flow cross-sectional dimension of the cavity 514, the cavity 514 can reduce the aerodynamic noise of the airflow exiting from the air outlet 515, allowing for smoother airflow and achieving the purpose of noise reduction.

[0185] In one embodiment, the air handling module 4 may further include a heating unit 45.

[0186] Located downstream of the air purification unit 43 (e.g., a high-efficiency filter) along the airflow direction, the heating unit 45 heats the air exiting the air purification unit 43 to reduce humidity. Specifically, the heating unit 45 can be an electric heating element, such as a PTC heating rod. Multiple electric heating elements can be arranged at intervals on the cross-section of the exhaust port 413 to uniformly heat the air.

[0187] In a specific application scenario, such as during the plum rain season when users have a high demand for dehumidification but a low demand for temperature regulation, the heating unit 45 can be activated to dehumidify the air introduced through the air inlet. Of course, in the above scenario, the cooling mode can also be activated, allowing the compressor 1 of the outdoor unit 100 to operate at a lower power. By combining cooling dehumidification with heating dehumidification by the heating unit 45, a highly efficient dehumidification effect can be achieved.

[0188] In one embodiment, the air inlet includes a fresh air inlet 411 and a return air inlet 412. The fresh air inlet 411 is connected to the outside to introduce outdoor air, and the return air inlet 412 is connected to the inside to introduce indoor air into the indoor air handling device 200. The fresh air inlet 411 and the return air inlet 412 can be opened simultaneously to mix the outdoor air and the indoor air in the indoor air handling device 200.

[0189] In this embodiment, the air inlet may include a fresh air inlet 411 connected to the outside and a return air inlet 412 connected to the inside. The indoor air handling unit 200 may include a first housing 40. When the fan 23 is started, a negative pressure can be formed inside the first housing 40 of the indoor air handling unit 200, drawing outdoor air into the first housing 40 through the fresh air inlet 411 and indoor air into the first housing 40 through the return air inlet 412. The two are mixed inside the first housing 40, and the mixed gas then exchanges heat with the second heat exchanger 22 before flowing out from the air outlet 502 and into the room through the indoor air delivery terminal 31.

[0190] Generally, there is a certain difference in temperature and humidity between outdoor fresh air and indoor air. When outdoor fresh air is directly introduced into the room, it will affect the indoor temperature and humidity, causing it to deviate from the preset target temperature and humidity. However, in this embodiment, the return air introduced into the room through the return air vent 412, compared to the case of introducing fresh air entirely from the outside, can effectively utilize the cooling or heating capacity of the indoor return air by introducing return air with the same temperature and humidity as the indoor air, thus reducing the fluctuation of indoor temperature and humidity caused by the total introduced air. This reduces the load on the indoor air handling unit 200 required for temperature and humidity regulation, saving energy.

[0191] In one embodiment, the fan 23 includes a fresh air fan 41 and a supply air fan 51, which can be turned on simultaneously. The fresh air fan 41 is used to introduce outdoor air into the indoor air handling device 200, and the supply air fan 51 is used to deliver the mixed outdoor air and indoor air to the indoor air output terminal.

[0192] In this embodiment, the fan 23 may include a fresh air fan 41 for introducing outdoor air into the indoor air handling unit 200, and a supply fan 51 for sending the mixed heat-exchange treated outdoor air and indoor air into the indoor air delivery terminal 31.

[0193] When in use, the fresh air fan 41 and the supply air fan 51 can be turned on at the same time. The two work together to draw outdoor air and / or indoor return air into the first housing 40 of the indoor air handling unit 200 for mixing. The mixed gas then exchanges heat with the second heat exchanger 22 and flows out from the air outlet 502 and into the room through the indoor air delivery terminal 31.

[0194] In one embodiment, the fresh air inlet 411 and / or the return air inlet 412 are provided with a flow regulating device, which is used to regulate the mixing ratio of the outdoor air and the indoor air.

[0195] Furthermore, the fresh air inlet 411 and / or the return air inlet 412 are provided with a flow regulating device, which is used to adjust the mixing ratio of the outdoor air and the indoor air.

[0196] In this embodiment, at least one of the fresh air inlet 411 and the return air inlet 412 may be provided with a flow regulating device. The flow regulating device may be a flow valve with adjustable opening. By adjusting the flow regulating device, the mixing ratio of outdoor air and indoor air can be controlled, that is, the ratio between fresh air introduced from the outside and return air introduced from the inside in the total introduced air can be controlled.

[0197] Specifically, the flow regulating device can be electrically connected to a controller, which is also electrically connected to an air quality detection device 34. The controller can adjust the opening degree of the flow regulating device based on the indoor air temperature and / or humidity and / or cleanliness detected by the air quality detection device 34. In addition, the controller can also receive outdoor air quality (including temperature and / or humidity and / or cleanliness) signals, and can determine the current opening degree of the flow regulating device based on a comprehensive assessment of both outdoor and indoor air quality.

[0198] For example, when the outdoor temperature and humidity are close to the indoor temperature and humidity, and the outdoor air cleanliness is higher than the indoor air cleanliness, the proportion of outdoor air flowing into the fresh air inlet 411 can be increased, or even all the air can be introduced through the fresh air inlet 411. When there is a large difference between the outdoor temperature and humidity and the indoor temperature and humidity, and the outdoor air cleanliness is relatively poor, the proportion of outdoor air flowing into the fresh air inlet 411 can be appropriately reduced.

[0199] like Figure 1As shown, the indoor air handling device 200 provided in this application embodiment can be applied in an indoor air handling system, which mainly includes the above-mentioned indoor air handling device 200 and outdoor unit 100.

[0200] The outdoor unit 100 may include a compressor 1, a heat exchange unit, a throttling unit, and a reversing valve. The outdoor unit 100 has a refrigerant inlet 11 and a refrigerant outlet 12, which can be connected to the indoor air handling unit 200 via refrigerant connecting pipes, and cooperate with the indoor air delivery terminal 31 and the indoor radiant terminal 32 to achieve the function of regulating indoor temperature and / or humidity and / or cleanliness.

[0201] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.

[0202] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0203] The above are merely a few embodiments of the present invention. Although the embodiments disclosed in the present invention are as described above, the content is only for the purpose of facilitating understanding of the present invention and is not intended to limit the present invention. Any person skilled in the art to which this invention pertains may make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed in the present invention. However, the patent protection scope of the present invention shall still be determined by the scope defined in the appended claims.

Claims

1. An indoor air treatment device, characterized in that, The indoor air handling device includes a separate air handling module and an air supply module. The air supply module is partially or entirely installed above the ceiling, and the air handling module is wall-mounted below the ceiling. The air handling module has a first housing, in which a heat exchanger is provided. The heat exchanger is used to directly and / or indirectly treat indoor air. The air supply module has a second housing, in which a fan is provided. The first housing has an air inlet and an air outlet, and the second housing has an air inlet. The air outlet and the air inlet are connected by a pipe. The heat exchanger includes a first heat exchanger and a second heat exchanger. The first heat exchanger is used for heat exchange between the refrigerant and the air flowing in from the air inlet. The second heat exchanger is used for heat exchange between the refrigerant and water. The water after heat exchange is used to supply the indoor radiant duct to treat the indoor air.

2. The indoor air treatment device as described in claim 1, characterized in that, The first housing has a lateral dimension in the transverse direction and a longitudinal dimension in the longitudinal direction, wherein the lateral dimension is greater than the longitudinal dimension.

3. The indoor air treatment device as described in claim 1, characterized in that, The air handling module is installed against the wall and positioned horizontally. The first heat exchanger and the second heat exchanger are arranged laterally in the first housing.

4. The indoor air treatment device as described in claim 3, characterized in that, The first refrigerant flow channel of the first heat exchanger has a first refrigerant inlet and a first refrigerant outlet. The second heat exchanger has a second refrigerant inlet and a second refrigerant outlet in its second refrigerant flow channel. The second heat exchanger includes a water flow channel having a water flow channel inlet and a water flow channel outlet. The air inlet includes a fresh air inlet and a return air inlet. Both the fresh air inlet and the exhaust outlet are located on the top wall of the first housing. The first refrigerant channel and the second refrigerant channel are connected to the refrigerant channel of the outdoor unit. The first refrigerant channel, the second refrigerant channel, and the water channel all penetrate the top wall of the first housing, or the first refrigerant channel, the second refrigerant channel, and the water channel are all located inside the first housing, and the refrigerant channel of the outdoor unit penetrates the top wall of the first housing. The return air vent is located on the side wall or bottom wall of the first housing.

5. The indoor air treatment device as described in claim 1, characterized in that, The distance between the front sidewall of the first housing and the wall is 550 mm to 600 mm; The bottom wall of the first shell is 1.7 meters to 1.8 meters above the ground.

6. The indoor air treatment device as described in claim 3, characterized in that, The air handling module further includes an air purification unit, and the air purification unit, the second heat exchanger, and the first heat exchanger are arranged laterally in the first housing. The front sidewall of the first housing is removable or can be opened to remove the air purification unit.

7. The indoor air treatment device as described in claim 6, characterized in that, The air inlet includes a fresh air inlet and a return air inlet. Along the direction of air flow, the air inlet, the second heat exchanger, the first heat exchanger, and the air purification unit are arranged horizontally in sequence.

8. The indoor air treatment device as described in claim 3, characterized in that, The second heat exchanger is vertically positioned close to or adjacent to the rear side wall of the first housing.

9. The indoor air treatment device as described in claim 1, characterized in that, The air supply module includes a fan box and an air supply fan. The air supply fan is installed inside the fan box, and the rotation axis of the impeller of the air supply fan extends in the longitudinal direction.

10. The indoor air treatment device as described in claim 9, characterized in that, The blower includes a first volute, a first impeller disposed within the first volute, a second volute, and a second impeller disposed within the second volute. The rotation axes of the first impeller and the second impeller are offset and both extend in the longitudinal direction. At least a portion of the front part of the first volute's enclosure and at least a portion of the rear part of the second volute's enclosure are the same plate, or at least a portion of the front part of the first volute's enclosure and at least a portion of the rear part of the second volute's enclosure are different plates that are close to each other.

11. The indoor air treatment device as described in claim 9, characterized in that, The fan box is horizontally placed above the suspended ceiling. A first air inlet is provided on each of the two adjacent sides of the fan box. The fan box also includes a sealing plate. When one of the first air inlets is connected to the exhaust outlet through the pipeline, the sealing plate is used to block the other first air inlet.

12. The indoor air treatment device as claimed in claim 1, characterized in that, The air inlet includes a fresh air inlet and a return air inlet. The fresh air inlet is used to connect to the outside to introduce outdoor air, and the return air inlet is used to connect to the inside to introduce indoor air into the indoor air handling device. The fresh air inlet and the return air inlet can be opened simultaneously to mix the outdoor air and the indoor air in the indoor air handling device.

13. The indoor air treatment device as described in claim 12, characterized in that, The fan includes a fresh air fan and a supply air fan, which can be turned on simultaneously. The fresh air fan is used to introduce outdoor air into the indoor air handling device, and the supply air fan is used to deliver the mixed outdoor air and indoor air to the indoor air output terminal.

14. The indoor air treatment device as described in claim 12, characterized in that, The fresh air inlet and / or the return air inlet are equipped with a flow regulating device, which is used to adjust the mixing ratio of the outdoor air and the indoor air.

15. The indoor air treatment device as described in claim 9, characterized in that, A cavity is provided between the air inlet of the blower and the air outlet of the second housing.

16. The indoor air treatment device as described in claim 4, characterized in that, The air handling module also includes a wet film humidifier disposed within the first housing. The wet film humidifier is connected to a purified water inflow pipe, through which purified water flows into the wet film humidifier. The purified water inflow pipe passes through the top wall of the first housing and is also equipped with a solenoid valve, which is used to control the opening and closing of the purified water inflow pipe.

17. The indoor air treatment device as claimed in claim 16, characterized in that, The air handling module also includes an air purification unit. Along the direction of air flow, the air inlet, the first heat exchanger, the second heat exchanger, the wet film humidifier, and the air purification unit are arranged in sequence.

18. The indoor air treatment device as claimed in claim 1, characterized in that, The air handling module further includes a first water receiving tray, which is located below the first heat exchanger and the second heat exchanger, and is used to collect the condensate from the first heat exchanger and the second heat exchanger. Alternatively, the air handling module further includes a first water receiving tray and a wet film humidifier, with the first water receiving tray located below the first heat exchanger, the second heat exchanger, and the wet film humidifier, and is used to collect the condensate from the first heat exchanger, the second heat exchanger, and the wet film humidifier.

19. The indoor air treatment device as described in claim 18, characterized in that, The air handling module further includes a second water receiving tray, which is located below the first water receiving tray and the downward projection of the first water receiving tray falls entirely into the second water receiving tray. The first water receiving tray has a first drain pipe, and the second water receiving tray has a second drain pipe. The first drain pipe is inserted into the second drain pipe and is spaced apart from the outer wall of the first drain pipe and the inner wall of the second drain pipe.

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