Air treatment device

Abstract

The air treatment device comprises an air treatment module and an air supply module which are communicated, the air treatment module is provided with a first shell, the first shell is provided with an air inlet, the first shell is further provided with an opening, and the first shell further comprises a first opening and closing structure; the first opening and closing structure is arranged at the opening so as to open and close the opening, and the air processing module further comprises a matching structure which is in sealing fit with the first opening and closing structure; when the first opening and closing structure is located at the position where the opening is closed, the first opening and closing structure and the matching structure are matched in a sealed mode at the connecting position. According to the air treatment device provided by the embodiment of the invention, the condition that the shell has good sealing performance during normal work can be guaranteed under the condition that the better convenience is achieved when parts are overhauled and replaced, and therefore the air treatment quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of indoor air treatment technology, and in particular to an 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 in existing all-air systems are floor-standing designs. Floor-standing units are not only large in size but also require a significant amount of floor space for installation, making them primarily 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.

[0006] The inventors of this application further discovered during the research and development of the indoor unit that the sealing performance of the indoor unit's casing directly affects the quality of the air supplied to the room.

[0007] Generally, because the indoor unit contains components that need to be inspected and replaced, its casing usually needs to be opened and closed. One of the key issues that needed to be addressed during the development of this indoor unit was how to ensure both ease of inspection and replacement while maintaining good sealing of the casing during normal operation.

[0008] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Utility Model Content

[0009] In view of the shortcomings of the existing technology, the present invention provides an air handling device that can provide better convenience for maintenance and replacement of parts, and can also ensure good sealing of the housing during normal operation, thereby ensuring the quality of air handling.

[0010] The specific technical solution of this utility model embodiment is as follows:

[0011] An air handling device, the air handling device comprising:

[0012] The air handling device includes a connected air handling module and an air supply module. The air handling module has a first housing with an air inlet. The air supply module allows indoor air to enter the air handling module through the air inlet. The first housing also has an opening and a first opening / closing structure. The first opening / closing structure is disposed at the opening to open and close the opening. The air handling module also includes a mating structure for sealing and adapting with the first opening / closing structure. When the first opening / closing structure is in the position of closing the opening, the first opening / closing structure and the mating structure are sealed and adapted at the connection.

[0013] In a preferred embodiment, a heat exchanger and / or a filter element are provided inside the first housing, and indoor air entering from the air inlet can pass through the heat exchanger and / or the filter element; along the direction of indoor air flow in the first housing, at least a portion of the connection is located upstream of the heat exchanger and / or the filter element, or at least a portion of the connection is provided corresponding to the heat exchanger and / or the filter element.

[0014] In a preferred embodiment, a filter element is disposed inside the first housing, the filter element including a first filter element and a second filter element, the first filter element being disposed at the air inlet; at least a portion of the connection is located upstream of the second filter element, or at least a portion of the connection is disposed corresponding to the second filter element.

[0015] In a preferred embodiment, the first opening and closing structure includes a door body having opposing left and right sides, and opposing upper and lower sides, and the door body is rotatable relative to the opening; when the first opening and closing structure is in the closed position, the left side, the right side, the upper side, and the lower side are all sealed and adapted to the mating structure at the connection, wherein the position where the left side or the right side is sealed and adapted to the mating structure is located upstream of the heat exchanger and / or the filter element or corresponds to the heat exchanger and / or the filter element.

[0016] In a preferred embodiment, the first opening / closing structure includes a first door and a second door; the first door has opposing first left and first right sides, opposing first upper and first lower sides, and is rotatable to the left relative to the opening; the first left, first right, first upper, and first lower sides are all sealed and adapted to the mating structure at the connection point, wherein at least the position where the first right side is sealed and adapted to the mating structure is located upstream of or corresponding to the heat exchanger and / or the filter element; the second door has opposing second left and second right sides, opposing second upper and second lower sides, and is rotatable to the right relative to the opening; the second left, second right, second upper, and second lower sides are all sealed and adapted to the mating structure at the connection point, wherein at least the position where the second left side is sealed and adapted to the mating structure is located upstream of or corresponding to the heat exchanger and / or the filter element.

[0017] In a preferred embodiment, the mating structure includes a mating plate connected to the heat exchanger or the first housing. The first right side portion is located upstream of or corresponding to the heat exchanger and / or the filter element, and the second left side portion is located upstream of or corresponding to the heat exchanger and / or the filter element, respectively.

[0018] In a preferred embodiment, the mating structure further includes the edge of the opening, wherein the first left side portion, the first upper side portion, the first lower side portion, the second right side portion, the second upper side portion, and the second lower side portion are all sealed and adapted to the edge of the opening.

[0019] In a preferred embodiment, the projection of the heat exchanger and / or the filter element onto the plane of the opening falls into the opening, which is used to remove the heat exchanger and / or the filter element.

[0020] In a preferred embodiment, the first opening / closing structure includes an openable / closable structure or a detachable structure, and the mating structure includes the edge of the opening and / or a mating plate mounted on the air handling module.

[0021] In a preferred embodiment, the air inlet includes a fresh air inlet and a return air inlet, and the first housing has a fresh air channel and a return air channel that are isolated from each other; a fresh air filter is provided in the fresh air channel, and an opening for removing the fresh air filter is provided on the wall of the fresh air channel; the fresh air channel also has a second opening and closing structure, which is used to open and close the opening, and when the second opening and closing structure is in the position of closing the opening, the second opening and closing structure is sealed and adapted to the wall of the fresh air channel.

[0022] In a preferred embodiment, the second opening and closing structure includes an openable / closable structure or a detachable structure.

[0023] In a preferred embodiment, the detachable structure includes a magnetic adsorption plate for magnetically adsorbing onto the wall of the fresh air duct and covering the opening.

[0024] In a preferred embodiment, the air handling module and the air supply module are separately arranged, with the air supply module partially or entirely located above the ceiling and the air handling module located below the ceiling; a heat exchanger is provided inside the first housing for directly and / or indirectly treating the indoor air; the air supply module has a second housing, in which an air supply fan is provided; an exhaust port is also provided on the first housing, and an air inlet is provided on the second housing; the exhaust port and the air inlet are connected by a pipeline.

[0025] In a preferred embodiment, 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, and the second heat exchanger is used for heat exchange between the refrigerant and water. The water after heat exchange is used to supply indoor radiant ducts for treating indoor air. Along the direction of indoor air flow within the first housing, at least a portion of the connection is located upstream of the first heat exchanger or corresponding to the first heat exchanger.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] In a preferred embodiment, the air treatment module further includes a filter element, the filter element, the second heat exchanger, and the first heat exchanger are arranged laterally in the first housing; the first opening and closing structure is the front sidewall of the first housing; the front sidewall of the first housing is detachable or can be opened to remove the filter element.

[0031] 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 filter element are arranged horizontally in sequence along the direction of air flow.

[0032] In a preferred embodiment, the second heat exchanger is vertically positioned close to or adjacent to the rear sidewall of the first housing.

[0033] In a preferred embodiment, the impeller of the blower extends longitudinally along its rotation axis.

[0034] 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.

[0035] In a preferred embodiment, the second housing is placed horizontally above the ceiling, and a first air inlet is provided on each of the two adjacent sides of the second housing. The second housing also includes a sealing plate, which is used to seal and block the other first air inlet when one of the first air inlets is connected to the exhaust outlet through the pipe.

[0036] In a preferred embodiment, a cavity is provided between the air inlet of the blower and the air outlet of the second housing.

[0037] In a preferred embodiment, the air handling module further includes a fastening structure for pressing the first opening / closing structure onto the mating structure.

[0038] In a preferred embodiment, the fastening structure includes an upper fastening structure and a lower fastening structure. The upper fastening structure is used to press the upper part of the first opening and closing structure against the upper part of the mating structure, and the lower fastening structure is used to press the lower part of the first opening and closing structure against the lower part of the mating structure.

[0039] In a preferred embodiment, the fastening structure is a quick-release structure.

[0040] In a preferred embodiment, the quick-release structure is a snap-fit ​​structure, which includes a first snap-fit ​​portion and a second snap-fit ​​portion. The first snap-fit ​​portion is disposed on the air treatment module, and the second snap-fit ​​portion is disposed on the first opening and closing structure. The first snap-fit ​​portion and the second snap-fit ​​portion engage with each other.

[0041] The technical solution of this utility model has the following significant beneficial effects:

[0042] The air handling device provided in this application embodiment has an opening in the first housing of the air handling module, and a first opening and closing structure is provided at the opening. When the first opening and closing structure is opened, the opening can be opened, thereby facilitating the operator to inspect and replace the heat exchanger and / or the filter element. Furthermore, the air handling module also has a mating structure, which can be positioned corresponding to the opening. When the first opening and closing structure is in the closed position, the first opening and closing structure and the mating structure are sealed and adapted at the connection, ensuring the airtightness of the first housing. This allows air from outside the first housing to enter the first housing through the air inlet, preventing air from directly flowing into the first housing between the mating structure and the first opening and closing structure, and preventing air from flowing directly into the room without passing through components that can treat the air, such as the heat exchanger and / or filter element, thus affecting the quality of air handling and the efficiency of air conditioning.

[0043] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, embodiments of the present 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

[0044] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this 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, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0045] Figure 1 This is a schematic diagram of the structure of an indoor air handling system provided in the embodiments of this application;

[0046] Figure 2 This is a schematic diagram of the installation of an air handling device provided in the embodiments of this application on a flat balcony;

[0047] Figure 3 This is an isometric view of an air handling module in an air handling apparatus provided in an embodiment of this application.

[0048] Figure 4 This is an exploded view of an air handling module in an air handling apparatus provided in an embodiment of this application.

[0049] Figure 5 This is a schematic diagram of the internal structure layout of an air handling device provided in the embodiments of this application;

[0050] Figure 6 This is a schematic diagram of the internal structure of an air handling device with its control box hidden, as provided in the embodiments of this application.

[0051] Figure 7 This is a schematic diagram of the structure of an air supply module in an indoor air handling system provided in the embodiments of this application;

[0052] Figure 8 This is an isometric view of another air handling module in an air handling apparatus provided in the embodiments of this application;

[0053] Figure 9An exploded view of another air handling module in an air handling apparatus provided in the embodiments of this application;

[0054] Figure 10 An exploded view of a fresh air module in an air handling device provided in the embodiments of this application;

[0055] Figure 11 This is a schematic diagram showing the distribution of seals in an air handling device provided in an embodiment of this application.

[0056] Reference numerals in the figures of this application:

[0057] 100. Outdoor unit;

[0058] 11. Refrigerant inlet;

[0059] 12. Refrigerant outlet;

[0060] 200. Air handling unit;

[0061] 21. First heat exchanger;

[0062] 211. First refrigerant flow channel;

[0063] 212. Airflow channel;

[0064] 22. Second heat exchanger;

[0065] 221. Second refrigerant flow channel;

[0066] 222. Water flow channel;

[0067] 223. Water pump;

[0068] 4. Air handling module;

[0069] 40. First shell;

[0070] 410. Open;

[0071] 420. First opening and closing structure;

[0072] 421. Left side;

[0073] 422. Right side;

[0074] 423. Upper side;

[0075] 424. Lower side;

[0076] 430. First phylum;

[0077] 431. First left side;

[0078] 432. First right side section;

[0079] 433. First upper side;

[0080] 434. First lower side;

[0081] 440. The second phylum;

[0082] 441. Second left side;

[0083] 442. Second right side;

[0084] 443. Second upper side;

[0085] 444. Second lower side;

[0086] 450. Matching plate;

[0087] 460. Edge;

[0088] 470. Upper fastening structure;

[0089] 480. Lower fastening structure;

[0090] 401. Front sidewall;

[0091] 402. Rear sidewall;

[0092] 403. Top wall;

[0093] 404. Bottom wall;

[0094] 405. Left side wall;

[0095] 406. Right side wall;

[0096] 41. Fresh air fan;

[0097] 411. New Opportunities;

[0098] 490. Fresh air duct;

[0099] 491. Fresh air filter element;

[0100] 492. Magnetic adsorption plate;

[0101] 412. Return air vent;

[0102] 413. Exhaust vent;

[0103] 414. First filter element;

[0104] 415. Second filter element;

[0105] 45. Heating unit;

[0106] 46. ​​Electrical control box;

[0107] 5. Air supply module;

[0108] 50. Second shell;

[0109] 501. Air Inlet;

[0110] 502. Air vent;

[0111] 51. Air supply fan;

[0112] 511. First volute;

[0113] 512. Second volute;

[0114] 513. Enclosure panels;

[0115] 514. Cavity;

[0116] 515. Air outlet;

[0117] 516. Partition;

[0118] 600. Balcony;

[0119] 6. Suspended ceiling;

[0120] 61. First refrigerant connection pipe;

[0121] 62. Second refrigerant connection pipe;

[0122] 610. First set of openings;

[0123] 620. Second set of openings;

[0124] 63. Clean water flows into the pipeline;

[0125] 64. Solenoid valve;

[0126] 65. Wet film humidifier;

[0127] 66. First water receiving tray;

[0128] 67. Second water receiving tray;

[0129] 71. First sealing element;

[0130] 72. Second sealing element;

[0131] H1, distance from the ground;

[0132] W1, distance from the wall;

[0133] X, horizontal direction;

[0134] Y, the height direction;

[0135] Z. Depth. Detailed Implementation

[0136] The technical solution of this utility model 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 this utility model and are not intended to limit the scope of this utility model. After reading this utility model, any modifications of this utility model in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0137] 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.

[0138] 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.

[0139] This invention provides an air handling device that offers greater convenience for maintenance and component replacement while ensuring good sealing of the housing during normal operation, thereby guaranteeing the quality of air handling.

[0140] Please refer to the following for comprehensive information. Figures 1 to 9 This application specification provides an air handling device 200, which may include: an air handling module 4 and an air supply module 5 connected to each other; the air handling module 4 having a first housing 40 with an air inlet; the air supply module 5 for allowing indoor air to enter the air handling module 4 through the air inlet; the first housing 40 also having an opening 410; the first housing 40 further includes a first opening and closing structure 420, which is disposed at the opening 410 to open and close the opening 410; the air handling module 4 also includes a mating structure for sealing and adapting with the first opening and closing structure 420; when the first opening and closing structure 420 is in the position of closing the opening 410, the first opening and closing structure 420 and the mating structure are sealed and adapted at the connection.

[0141] In this embodiment, the air handling unit 200 is mainly used to process the air to be introduced into the room, adjusting its temperature and / or humidity and / or cleanliness. The air handling unit 200 may include a connected air handling module 4 and an air supply module 5. The air handling module 4 is mainly used to achieve the aforementioned function of adjusting the temperature and / or humidity and / or cleanliness of the air introduced into the room. The air supply module 5 is used to provide driving force for the flow of air to be introduced into the room. The air handling module 4 and the air supply module 5 can be integrated into a single housing, or, as... Figure 2 As shown, the air handling module 4 and the air supply module 5 can be installed separately. The air supply module 5 can be equipped with a fan, which can be a blower or an exhaust fan, etc.

[0142] The air handling module 4 has a first housing 40, which houses components for treating the air. Specifically, the first housing 40 may contain a heat exchanger and / or a filter element, allowing indoor air entering from the air inlet to pass through the heat exchanger and / or the filter element. For example, when the first housing 40 contains a heat exchanger, the temperature of the air flowing through it can be regulated; when the first housing 40 contains a filter element, the air flowing through it can be filtered, thereby improving air cleanliness.

[0143] like Figure 5 and Figure 8 As shown, in order to inspect and replace internal components of the first housing 40, such as heat exchangers and / or filter elements, the first housing 40 has an opening 410, and a first opening and closing structure 420 is provided at the opening 410. When the first opening and closing structure 420 is opened, the opening 410 can be opened, thereby facilitating the operator to inspect and replace the heat exchanger and / or filter elements. When the air handling unit 200 is in operation, the first opening and closing structure 420 can close the opening 410. The specific structure and size of the opening 410 can be determined comprehensively based on the structure of the first housing 40, the structure and size of the filter elements and other components to be replaced, etc., and this application does not make specific limitations here. For example, when the first housing 40 is a rectangular box structure, the opening 410 can be one side of the first housing 40, or a part of one side.

[0144] In view of the fact that the opening 410 can be used to remove the heat exchanger and / or the filter element, in order to facilitate the disassembly and installation of the heat exchanger and / or the filter element through the opening 410, the projection of the heat exchanger and / or the filter element onto the plane where the opening 410 is located falls into the opening 410.

[0145] To ensure a good seal for the opening 410 when the first opening / closing structure 420 closes it, the air handling module 4 also includes a mating structure, which can be positioned corresponding to the opening 410. For example, the mating structure can be located in the outer periphery near the opening 410, and / or, the mating structure can be located in the area corresponding to the outer periphery near the opening 410 of the first opening / closing structure 420.

[0146] When the first opening and closing structure 420 is in the position of closing the opening 410, the first opening and closing structure 420 and the mating structure are sealed and adapted at the connection, ensuring the airtightness of the first housing 40. This allows air outside the first housing 40 to enter the first housing 40 through the air inlet, preventing indoor air from flowing directly into the first housing 40 from between the mating structure and the first opening and closing structure 420, and preventing it from flowing directly into the room without passing through heat exchangers and / or filters or other components that can treat the air, thus affecting the quality of air treatment and the efficiency of air conditioning.

[0147] like Figure 4 and Figure 5 As shown, in one embodiment, the first opening / closing structure 420 includes an openable / closable structure or a detachable structure, and the mating structure includes the edge 460 of the opening 410 and / or a mating plate 450 mounted on the air treatment module 4.

[0148] In this embodiment, the first opening and closing structure 420 can be an openable and closable structure, or a detachable structure. Furthermore, the first opening and closing structure 420 can also combine an openable and closable structure with a detachable structure. Of course, the first opening and closing structure 420 can also be any other structure capable of closing and opening the opening 410, and is not limited to the above description. Those skilled in the art, inspired by the technical essence of this application, may make other modifications, but as long as the function and effect 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.

[0149] For example, when the first opening and closing structure 420 is an openable and closable structure, it can be connected to the opening 410 of the first housing 40 by means of a hinge. Specifically, for example, one side of the openable and closable structure and one side edge 460 of the opening 410 of the first housing 40 are connected by a hinge structure, thereby realizing the function of opening and closing the opening 410 of the openable and closable structure.

[0150] Alternatively, the openable structure can be slidably disposed at the opening 410 of the first housing 40. Specifically, for example, the first housing 40 can be provided with slideways above and below the edge 460 at the opening 410. The upper and lower ends of the openable structure are engaged in the slideways, allowing the openable structure to move within the slideways and thus realize the function of opening and closing the opening 410. Of course, the openable structure can also be installed in other ways.

[0151] When the first opening / closing structure 420 is a detachable structure, it can be detachably connected to the opening 410 of the first housing 40. Specifically, the detachable connection can include snap-fit ​​connection, magnetic connection, pin connection, etc. When the first opening / closing structure 420 is a detachable structure, if it is necessary to open the opening 410, the detachable structure can be removed from the opening 410.

[0152] In this embodiment, the mating structure may include the edge 460 of the opening 410 and / or the mating plate 450 mounted on the air handling module 4. The form of the mating structure can be determined based on the installation method of the first opening and closing structure 420 and the distribution of the first opening and closing structure 420.

[0153] For example, when the first opening and closing structure 420 includes an openable and closable door, the mating structure may include the edge 460 of the opening 410. When the first opening and closing structure 420 includes at least two openable and closable door bodies, such as a first door body 430 and a second door body 440, the mating structure may include the edge 460 of the opening 410 and a mating plate 450 corresponding to the contact position of the first door body 430 and the second door body 440.

[0154] In one embodiment, the air handling module 4 may further include a fastening structure for pressing the first opening / closing structure 420 onto the mating structure.

[0155] In this embodiment, the air handling module 4, through a fastening mechanism, can apply pressure to the first opening / closing structure 420, pressing it against the mating structure, thereby reliably ensuring the sealing of the mating position. Furthermore, a sealing element with a certain deformation capability can be provided between the first opening / closing structure 420 and the mating structure. This sealing element can be in the form of sealing cotton, rubber, etc. The sealing element can be provided or formed at the connection point between the first opening / closing structure 420 and the mating structure, or it can be provided or formed at the connection point between the mating structure and the first opening / closing structure 420, or it can be provided or formed at the connection point between the first opening / closing structure 420 and the mating structure. Figure 11As shown, in the embodiment with the mating plate 450, the seal may include a first seal 71 disposed on the edge 460 of the opening 410 of the first housing 40 and on the mating plate 450, and a second seal 72 disposed on the sides of the first door 430 and the second door 440. Taking the second door 440 as an example, when the second door 440 is in the closed state, the first seal 71 and the second seal 72 overlap, achieving the effect of sealing the opening 410 corresponding to the second door 440.

[0156] By setting this fastening mechanism, pressure can be applied to the seal to cause it to deform to a certain extent, thereby further ensuring the sealing performance of the first opening and closing mechanism and the mating structure at the connection. This prevents outdoor air from flowing directly into the first housing 40 through the first opening and closing structure 420 and the mating structure, and from flowing directly into the room without passing through heat exchangers and / or filter elements or other components that can treat the air, thus affecting the quality of air treatment.

[0157] In this embodiment, the fastening structure may include multiple sets, which are distributed at different connection points, thereby applying force to different positions of the first opening and closing structure 420, so that the first opening and closing structure 420 is reliably pressed onto the mating structure, ensuring the sealing of the two at the connection point.

[0158] The fastening structure can be a quick-release structure, facilitating rapid disassembly during user operation and improving operational convenience. Specifically, the quick-release structure can be any one or a combination of the following: a quick-release pin connection structure, a snap-fit ​​structure, a threaded quick-release structure, a magnetic quick-release structure, etc. Of course, the specific form of the quick-release structure is not limited to the above description. Those skilled in the art, inspired by the technical essence of this application, may make other modifications, but as long as their functions and effects are the same as or similar to those of this application, they should all be covered within the scope of protection of this application.

[0159] The fastening structure has an unlocked state and a locked state. In specific use, when it is necessary to repair or replace the components inside the first housing 40, the fastening structure can be switched from the locked state to the unlocked state first, and then the opening 410 can be opened by operating the first opening and closing structure 420. After the repair or replacement is completed, the opening 410 can be closed by operating the first opening and closing structure 420, and then the fastening structure can be switched from the unlocked state to the locked state.

[0160] like Figure 3 and Figure 4As shown, specifically, the fastening structure may include an upper fastening structure 470 and a lower fastening structure 480. The upper fastening structure 470 is used to press the upper part of the first opening and closing structure 420 against the upper part of the mating structure, and the lower fastening structure 480 is used to press the lower part of the first opening and closing structure 420 against the lower part of the mating structure.

[0161] Taking the fastening structure, which includes an upper fastening structure 470 and a lower fastening structure 480, as an example, the upper fastening structure 470 can be located on the first housing 40 at the upper edge 460 of the opening 410 and / or at the upper end of the first opening and closing structure 420. For example, with the upper fastening structure 470 located at the upper edge 460 of the opening 410 of the first housing 40, the upper fastening structure 470 has an unlocked state and a locked state. When the upper fastening structure 470 is in the locked state, a force can be applied to the upper part of the first opening and closing structure 420 to bring it closer to the mating structure, thereby pressing the upper part of the first opening and closing structure 420 against the upper part of the mating structure.

[0162] The lower fastening structure 480 can be located on the first housing 40 at the lower edge 460 of the opening 410 and / or at the lower end of the first opening / closing structure 420. For example, with the lower fastening structure 480 located at the lower edge 460 of the opening 410 of the first housing 40, the lower fastening structure 480 has an unlocked state and a locked state. When the lower fastening mechanism is in the locked state, a force can be applied to the lower part of the first opening / closing structure 420 to bring it closer to the mating structure, thereby pressing the lower part of the first opening / closing structure 420 against the lower part of the mating structure.

[0163] The number of the upper fastening structure 470 can be one or more. When there are multiple upper fastening structures 470, they can be spaced apart along the upper edge 460 of the opening 410, thereby ensuring that the connection between the upper part of the first opening and closing structure 420 and the upper part of the mating structure is subjected to uniform pressing force, thus reliably ensuring the sealing of the connection.

[0164] The number of the lower fastening structure 480 can be one or more. When there are multiple lower fastening structures 480, the multiple lower fastening structures 480 can be spaced apart along the lower edge 460 of the opening 410, thereby ensuring that the connection between the lower part of the first opening and closing structure 420 and the lower part of the mating structure is subjected to uniform pressing force, thereby reliably ensuring the sealing of the connection.

[0165] In one specific embodiment, the quick-release structure is a snap-fit ​​structure, which includes a first snap-fit ​​part and a second snap-fit ​​part. The first snap-fit ​​part is disposed on the air treatment module 4, and the second snap-fit ​​part is disposed on the first opening and closing structure 420. The first snap-fit ​​part and the second snap-fit ​​part engage with each other.

[0166] In this embodiment, taking the quick-release structure as a locking structure as an example, the locking structure may include two paired first locking parts and second locking parts. The first locking part may be disposed on the air handling module 4, and the second locking part may be disposed on the first opening / closing structure 420. For example, the air handling module 4 may have a first mating position near the first opening / closing structure 420, and the first locking part may be disposed at this first mating position. Specifically, this first mating position may be the position of the top wall 403 near the first opening / closing structure 420 (door body); the first opening / closing structure 420 has a second mating position opposite to the first mating position, and the second locking part may be disposed at this second mating position. When the first opening / closing structure 420 is closed, the second locking part engages with the first opening / closing part.

[0167] Furthermore, for the first housing 40 of the air handling device 200, when the above-mentioned mating structure is provided to seal and adapt to the first opening and closing structure 420, there may be some relatively weak sealing positions.

[0168] Considering that components requiring maintenance and replacement are installed inside the first housing 40, the first opening and closing structure 420 of the first housing 40 typically needs to be opened and closed. There are weak sealing points (e.g., the opening and closing positions) at the connection between the first opening and closing structure 420 and the mating structure, making it difficult to consistently guarantee reliable sealing during use. For example, the mating structure may not be fully compressed at the connection, resulting in a poor seal; or the mating structure may age after a period of use, leading to a poor seal; or impurities may become trapped at the opening and closing position, resulting in a poor seal. When a poor seal occurs at the connection, indoor return air can easily bypass the heat exchanger and / or filter and enter the room, thus affecting the quality of air treatment and failing to ensure that the indoor air efficiently meets the target air quality requirements.

[0169] In one embodiment, at least a portion of the connection is located upstream of the heat exchanger and / or the filter element, along the direction in which indoor air flows within the first housing 40; or, at least a portion of the connection is disposed corresponding to the heat exchanger and / or the filter element.

[0170] like Figure 3As shown, in this embodiment, the first housing 40 has an air inlet, which may include a fresh air inlet 411 for introducing outside air and a return air inlet 412 for introducing indoor air. Furthermore, the first housing 40 is provided with an exhaust outlet 413. Indoor air enters the first housing 40 through the return air inlet 412, flows through a heat exchanger and a filter, and after being processed by the heat exchanger and filter, flows out through the exhaust outlet 413 and subsequently flows into the room.

[0171] If indoor air enters the first housing 40 directly from downstream of the heat exchanger and / or filter, this portion of indoor air, without being treated by the heat exchanger and / or filter, will negatively impact the indoor air quality and hinder the efficient achievement of the target air quality.

[0172] At least some of the connections may include locations where the seal is relatively weak.

[0173] When the connection point that at least partially achieves the sealing fit between the first opening / closing structure 420 and the mating structure is located at a position corresponding to the heat exchanger and / or filter element or upstream of the heat exchanger and / or filter element, even if some indoor air enters the first housing 40 from this connection point when the seal of this connection point fails, because this connection point is located at the above-mentioned position, after flowing into the first housing 40, it will still flow through the heat exchanger and / or filter element. This prevents indoor air from directly entering the first housing 40 from downstream of the heat exchanger and / or filter element (i.e., not flowing through the heat exchanger and / or filter element), ensuring that the air flowing into the room is treated by the heat exchanger and / or filter element, thereby improving indoor air quality and increasing the efficiency of indoor air purification.

[0174] like Figure 4 or Figure 9 As shown, in one embodiment, a filter element is provided inside the first housing 40. The filter element includes a first filter element 414 and a second filter element 415. The first filter element 414 is disposed at the air inlet. At least a portion of the connection is located upstream of the second filter element 415, or at least a portion of the connection is disposed corresponding to the second filter element 415.

[0175] In this embodiment, a filter element for filtering air is disposed within the first housing 40. Multiple filter elements may be included, and the cooperation of multiple filter elements enables multi-stage air treatment. For example, the filter element may include a first filter element 414 and a second filter element 415, wherein the first filter element 414 may be disposed at the air inlet, and the second filter element 415 may be located downstream of the first filter element 414 along the airflow direction.

[0176] When at least part of the connection is located upstream of the second filter element 415 or at least part of the connection is correspondingly provided to the second filter element 415, the connection that can ensure at least part of the sealing cooperation between the first opening and closing structure 420 and the mating structure is provided at a position corresponding to the second filter element 415 or upstream of the second filter element 415.

[0177] Specifically, the connection point where at least part of the sealing cooperation between the first opening / closing structure 420 and the mating structure is achieved includes the relatively weak position of the seal mentioned above.

[0178] When at least part of the connection is located upstream of the second filter element 415 or at least part of the connection is corresponding to the second filter element 415, even if a seal failure occurs at the relatively weak seal location, since the weak seal location is located upstream of or corresponding to the second filter element 415, even if some indoor air enters the first housing 40 through the weak seal location, it will still flow through the second filter element 415, thereby ensuring that the air flowing into the room is filtered by the second filter element 415, which helps to improve indoor air quality and increase the efficiency of indoor air purification.

[0179] like Figure 8 As shown, in one specific embodiment, the first opening and closing structure 420 includes a door body having opposing left side portion 421 and right side portion 422, and opposing upper side portion 423 and lower side portion 424. The door body is rotatable relative to the opening 410. When the first opening and closing structure 420 is in the position of closing the opening 410, the left side portion 421, the right side portion 422, the upper side portion 423, and the lower side portion 424 are all sealed and adapted to the mating structure at the connection point. The position where the left side portion 421 or the right side portion 422 is sealed and adapted to the mating structure is located upstream of the heat exchanger and / or the filter element or corresponds to the heat exchanger and / or the filter element.

[0180] In this embodiment, the first opening / closing structure 420 may include a door body. For example, the door body may be a rectangular panel. The door body can be positioned facing the user, facilitating opening and closing operations. The door body has opposing left and right sides 421 and 422, as well as opposing upper and lower sides 423 and 424. When the door body is hinged to the opening 410, it can rotate relative to the opening 410.

[0181] When the first opening / closing structure 420 closes the opening 410, its left side portion 421, right side portion 422, upper side portion 423, and lower side portion 424 all seal and adapt with the mating structure at the connection point, thereby forming a circumferentially sealed mating structure. Taking the edge 460 of the opening 410 as an example, the edge 460 of the opening 410 can correspond to the edge 460 of the door body. When both the edge 460 of the opening 410 and the edge 460 of the door body are sealed and adapted, indoor air can be prevented from entering the opening 410.

[0182] Taking the rotation of the door body around the left side portion 421 as an example, the position where the right side portion 422 adapts to the mating structure is located upstream of the heat exchanger and / or the filter element, or corresponding to the heat exchanger and / or the filter element. The connection position where the right side portion 422 and the mating structure are sealed is a relatively weak point in the seal.

[0183] By positioning the right side portion 422 upstream of the heat exchanger and / or the filter element, or corresponding to the heat exchanger and / or the filter element, even if some indoor air enters the first housing 40 from this connection point when the seal fails, it will still flow through the heat exchanger and / or the filter element after entering the first housing 40, thus preventing indoor air from directly entering the first housing 40 from downstream of the heat exchanger and / or the filter element (i.e., not flowing through the heat exchanger and / or the filter element). This ensures that the air flowing into the room is treated by the heat exchanger and / or the filter element, thereby improving indoor air quality and increasing the efficiency of indoor air purification.

[0184] When the door rotates around the left side portion 421 as the rotation axis, the position where the right side portion 422 matches the mating structure is a relatively weak sealing position. In addition to improving the position of the weak sealing position, a sealing mechanism can be added at this position to strengthen the seal. For example, a sealing element can be added at the position where the right side portion 422 matches the mating structure; in addition, a fastening structure as described in the above embodiment can be provided at this position.

[0185] Taking the door body rotating around the right side portion 422 as an example, the left side portion 421 is located upstream of the heat exchanger and / or the filter element, or corresponding to the heat exchanger and / or the filter element, in a position where it is sealed to the fitting structure. The connection position where the left side portion 421 is sealed to the fitting structure is a relatively weak point in the seal.

[0186] By positioning the left side portion 421 upstream of the heat exchanger and / or the filter element, or corresponding to the heat exchanger and / or the filter element, even if some indoor air enters the first housing 40 from this connection point when the seal fails, it will still flow through the heat exchanger and / or the filter element after entering the first housing 40, thus preventing indoor air from directly entering the first housing 40 from downstream of the heat exchanger and / or the filter element (i.e., not flowing through the heat exchanger and / or the filter element). This ensures that the air flowing into the room is treated by the heat exchanger and / or the filter element, thereby improving indoor air quality and increasing the efficiency of indoor air purification.

[0187] When the door rotates around the right side portion 422 as the rotation axis, the position where the left side portion 421 matches the mating structure is a relatively weak sealing position. In addition to improving the position of the weak sealing position, a sealing mechanism can be added at this position to strengthen the seal. For example, a sealing element can be added at the position where the left side portion 421 matches the mating structure; in addition, a fastening structure as described in the above embodiment can be provided at this position.

[0188] like Figure 3 As shown, in another specific embodiment, the first opening / closing structure 420 includes a first door 430 and a second door 440; the first door 430 has opposing first left side portions 431 and first right side portions 432, opposing first upper side portions 433 and first lower side portions 434, and the first door 430 can rotate to the left relative to the opening 410. The first left side portions 431, first right side portions 432, first upper side portions 433, and first lower side portions 434 are all sealed and adapted to the mating structure at the connection point, wherein at least the position where the first right side portion 432 is sealed and adapted to the mating structure is located at the heat exchanger and / or the filter. The second door 440 is located upstream of the core or corresponds to the heat exchanger and / or the filter element; the second door 440 has opposing second left side portion 441 and second right side portion 442, opposing second upper side portion 443 and second lower side portion 444, the second door 440 can rotate to the right relative to the opening 410, the second left side portion 441, the second right side portion 442, the second upper side portion 443 and the second lower side portion 444 are all sealed and adapted to the mating structure at the connection, wherein at least the position where the second left side portion 441 is sealed and adapted to the mating structure is located upstream of the heat exchanger and / or the filter element or corresponds to the heat exchanger and / or the filter element.

[0189] In this embodiment, the first opening and closing structure 420 may include at least two door bodies. For example, the first opening and closing structure 420 may include a first door body 430 and a second door body 440. Both the first door body 430 and the second door body 440 can be opened and closed. The first door body 430 may be located on the opposite left side, and the second door body 440 may be located on the opposite right side.

[0190] The first door body 430 can be a door panel with an overall rectangular structure. The first door body 430 can be positioned facing the user, facilitating opening and closing. The first door body 430 has opposing first left side portions 431 and 432, and opposing first upper side portions 433 and 434. The first left side portions 431, 432, 433, and 434 are all sealed and adapted to the mating structure at their joints. The first door body 430 can rotate to the left relative to the opening 410, that is, the first door body 430 rotates around the axis of the first right side portion 432. The connection position where the first right side portion 432 of the first door body 430 seals and adapts to the mating structure is a relatively weak point in the seal.

[0191] By positioning at least the first right side portion 432, which is sealed and adapted to the mating structure, upstream of or corresponding to the heat exchanger and / or the filter element, even if some indoor air enters the first housing 40 from this connection location when the seal fails, it will still flow through the heat exchanger and / or the filter element after entering the first housing 40, thus preventing indoor air from directly entering the first housing 40 from downstream of the heat exchanger and / or the filter element (i.e., not flowing through the heat exchanger and / or the filter element). This ensures that the air flowing into the room is treated by the heat exchanger and / or the filter element, thereby improving indoor air quality and increasing the efficiency of indoor air purification.

[0192] The second door 440 can be a rectangular door panel. The second door 440 can be positioned facing the user for easy opening and closing. The second door 440 has opposing second left side portions 441 and second right side portions 442, and opposing second upper side portions 443 and second lower side portions 444. The second left side portions 441, second right side portions 442, second upper side portions 443, and second lower side portions 444 are all sealed and adapted to the mating structure at their joints. The second door 440 can rotate to the right relative to the opening 410, that is, the second door 440 rotates about the axis of the second left side portion 441. The first door 430 and the second door 440 can form a double-opening configuration. The connection point where the second left side portion 441 of the second door 440 seals and adapts to the mating structure is a relatively weak point in the seal.

[0193] By positioning at least the second left side portion 441 in a sealing fit with the mating structure upstream of or corresponding to the heat exchanger and / or the filter element, even if some indoor air enters the first housing 40 from this connection location when the seal fails, it will still flow through the heat exchanger and / or the filter element after entering the first housing 40, thus preventing indoor air from directly entering the first housing 40 from downstream of the heat exchanger and / or the filter element (i.e., not flowing through the heat exchanger and / or the filter element). This ensures that the air flowing into the room is treated by the heat exchanger and / or the filter element, thereby improving indoor air quality and increasing the efficiency of indoor air purification.

[0194] In one embodiment, the mating structure includes a mating plate 450 connected to the heat exchanger or the first housing 40. The first right side portion 432 is located upstream of or opposite to the heat exchanger and / or the filter element in a sealing fit with the mating plate 450. The second left side portion 441 is located upstream of or opposite to the heat exchanger and / or the filter element in a sealing fit with the mating plate 450.

[0195] In this embodiment, the mating structure may include a mating plate 450, which is specifically connected to a heat exchanger. For example, the heat exchanger may have a column or flange facing the first opening / closing structure 420. Taking the heat exchanger as an example where a column is connected, the mating plate 450 can be a panel of the column facing the first opening / closing structure 420. Alternatively, the mating plate 450 may be disposed on the first housing 40. Or, the mating plate 450 may be formed using a panel of a component within the first housing 40, such as a side plate of a filter element facing the first opening / closing structure 420. Of course, the mating plate 450 can also take other forms.

[0196] When the mating structure is a mating plate 450, specifically, the position where the first right side portion 432 is sealed and adapted to the mating plate 450 is located upstream of the heat exchanger and / or the filter element or corresponds to the heat exchanger and / or the filter element.

[0197] Since the mating position formed by the mating plate 450 and the first right side portion 432 and the second left side portion 441 of the first opening and closing structure 420 is a relatively weak sealing position, by optimizing the design of the above-mentioned relatively weak sealing position, it is possible to ensure that the air flowing into the room is all air that has been treated by the heat exchanger and / or filter element, thereby achieving the purpose of improving indoor air quality and improving the efficiency of indoor air purification.

[0198] In one specific embodiment, the projection of the mating plate 450 toward the first opening and closing structure 420 can simultaneously cover the first right side portion 432 and the second left side portion 441, such that the position where the first right side portion 432 is sealed and adapted to the mating plate 450 and the position where the second left side portion 441 is sealed and adapted to the mating plate 450 both correspond to the mating plate 450.

[0199] Taking the mating plate 450 as an example, which can be formed by a column connected to the heat exchanger, specifically, the mating plate 450 is formed by the column facing the panel of the first opening and closing structure 420, and the column itself can be used for positioning and installing the heat exchanger. Furthermore, the mating plate 450 can also be a side plate of the filter element facing the first opening and closing structure 420.

[0200] When the mating plate 450 borrows the column structure or the side plate of the filter element, it is beneficial to improve the integration of the air handling module 4 and reduce its size. At the same time, it can form a structure to block air around the heat exchanger or filter element, preventing air from flowing downstream between the heat exchanger and / or filter element and the first housing 40, thus avoiding the heat exchanger and / or filter element and being unable to exchange heat with the heat exchanger and / or be filtered by the filter element.

[0201] Furthermore, the mating structure may also include the edge 460 of the opening 410, and the first left side portion 431, the first upper side portion 433, the first lower side portion 434, the second right side portion 442, the second upper side portion 443, and the second lower side portion 444 are all sealed and adapted to the edge 460 of the opening 410.

[0202] In this embodiment, the mating structure may further include the edge 460 of the opening 410. When the first left side portion 431, the first upper side portion 433, the first lower side portion 434, the second right side portion 442, the second upper side portion 443, and the second lower side portion 444 are all sealed and adapted to the edge 460 of the opening 410, a closed sealing structure is formed between the outer periphery of the first opening and closing structure 420 and the edge 460 of the opening 410. This ensures the sealing performance of the first opening and closing structure 420 when it is closed at the opening 410 position, thereby helping to prevent indoor air, especially air located downstream of the heat exchanger and / or filter element, from directly entering the first housing 40 and subsequently entering the room, affecting indoor air quality and indoor air purification efficiency.

[0203] In one embodiment, the air inlet includes a fresh air inlet 411 and a return air inlet 412. The first housing 40 has a fresh air channel 490 and a return air channel that are isolated from each other. A fresh air filter 491 is provided in the fresh air channel 490, and an opening for pulling out the fresh air filter 491 is provided on the wall of the fresh air channel 490. The fresh air channel 490 also has a second opening and closing structure, which is used to open and close the opening. When the second opening and closing structure is in the position of closing the opening, the second opening and closing structure is adapted to seal the wall of the fresh air channel 490.

[0204] 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. Typically, there is a certain difference in temperature and humidity between the outdoor fresh air and the indoor air. When outdoor fresh air is directly introduced into the room, it will affect the indoor temperature and humidity, either lowering or raising them, causing them to deviate from the preset target temperature and humidity. However, in this embodiment, the return air introduced into the room through the return air inlet 412, compared to the case of completely introducing fresh air from the outside, effectively utilizes the cooling or heating capacity of the indoor return air by introducing return air with the same temperature and humidity as the indoor air, reducing the fluctuations in indoor temperature and humidity caused by the total introduced air. This reduces the load on the air handling unit 200 required for temperature and humidity regulation, thus saving energy.

[0205] The first housing 40 has a mutually isolated fresh air duct 490 and a return air duct. The fresh air duct 490 can be formed by a circumferentially enclosed pipe or box. The fresh air duct 490 has an opposing air inlet 501 and an air outlet 502. The fresh air outlet 411 is the air inlet 501 of the fresh air duct 490. The air outlet 502 of the fresh air duct 490 is located upstream of the heat exchanger, thereby ensuring that the fresh air introduced from the outside can flow through the heat exchanger for heat exchange and achieve air temperature regulation. In addition, the air outlet 502 of the fresh air duct 490 can also be located upstream of a filter element (e.g., a high-efficiency filter element near the exhaust vent 413) installed in the first housing 40, thereby ensuring that the fresh air introduced from the outside can flow through the filter element for further filtration.

[0206] The return air duct has an inlet 501 and an outlet 502, with the return air outlet 412 serving as the inlet 501 of the return air duct. The return air duct can share the space within the first housing 40 except for the fresh air duct 490, or the return air duct can be formed by enclosing a circumferentially closed pipe or box.

[0207] When the supply fan 51 starts, a negative pressure is created inside the first housing 40 of the air handling unit 200, drawing outdoor air into the first housing 40 through the fresh air inlet 411 and fresh air duct 490, while simultaneously drawing indoor air into the first housing 40 through the return air inlet 412 and return air duct. The two airs then mix within the first housing 40. By providing independent fresh air ducts 490 and return air ducts within the first housing 40, the intake of air from the outside and the intake of air from the inside can proceed without interference, thus ensuring the proper ratio of indoor air to outdoor air. In particular, this prevents indoor air from occupying too much space within the first housing 40, which could compromise the amount of outdoor air introduced.

[0208] Overall, considering that fresh air needs to be introduced into the fresh air inlet 411 through a fresh air duct, while the return air inlet 412 is directly connected to the indoor environment without the need for a duct, the airflow resistance upstream of the fresh air inlet 411 will be greater than the airflow resistance upstream of the return air inlet 412. Please refer to the relevant documentation. Figure 10 At this time, a fresh air fan 41 can also be installed at the fresh air inlet 411 to increase the power of fresh air. The fresh air fan 41 is an adjustable fan, and the ratio of fresh air volume to return air volume can be adjusted by adjusting the speed of the fresh air fan 41.

[0209] A fresh air filter element 491 is installed within the fresh air duct 490. This fresh air filter element 491 is located downstream of the fresh air inlet 411 and is used to filter the external air flowing in through the fresh air inlet 411. This fresh air filter element 491 is a component that needs to be replaced and maintained regularly to ensure reliable filtration of the external air flowing in through the fresh air inlet 411.

[0210] To facilitate convenient replacement of the fresh air filter 491, an opening for pulling out the fresh air filter 491 is provided on the wall of the fresh air duct 490. The projection of the opening toward the fresh air filter 491 can cover the fresh air filter 491, thereby facilitating the operator to efficiently disassemble or install the fresh air filter 491 through the opening.

[0211] In addition, to ensure the airtightness of the fresh air duct 490, the fresh air duct 490 also has a second opening and closing structure. The second opening and closing structure is used to open and close the opening. When the second opening and closing structure is in the position of closing the opening, the second opening and closing structure is adapted to the wall seal of the fresh air duct 490 around the opening.

[0212] In one embodiment, the second opening and closing structure includes an openable structure or a detachable structure.

[0213] In this embodiment, the second opening and closing structure can be an openable and closable structure, or a detachable structure. Furthermore, the second opening and closing structure can combine an openable and closable structure with a detachable structure. Of course, the second opening and closing structure can also be any other structure capable of closing and opening the opening, and is not limited to the above description. Those skilled in the art, inspired by the technical essence of this application, may make other modifications, but as long as the function and effect 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.

[0214] When the second opening and closing structure is detachable, it can be detachably connected to the opening of the fresh air duct 490. Specifically, the detachable connection can include snap-fit ​​connection, magnetic connection, latch connection, pin connection, etc. When the second opening and closing structure is detachable, if it is necessary to open the opening 410, the detachable structure can be removed from the opening 410.

[0215] In one specific embodiment, the detachable structure may include a magnetic adsorption plate 492, which is used to magnetically adsorb onto the wall of the fresh air duct 490 and cover the opening.

[0216] In this embodiment, when the detachable method is a magnetic connection, the detachable structure may include a magnetic adsorption plate 492. The material of the fresh air duct 490 can be a ferromagnetic material, a ferrimagnetic material, etc., for example, an iron alloy material. The magnetic adsorption plate 492 may be equipped with a magnet. When the magnetic adsorption plate 492 is placed at the opening, the attraction generated by the two allows the magnetic adsorption plate 492 to reliably cover the opening. When the fresh air filter 491 needs to be replaced, the first opening and closing structure 420 can be opened, and the fresh air duct 490 can be opened by operating the magnetic adsorption plate 492 to remove and install the fresh air filter 491. After subsequent installation, simply reset the magnetic adsorption plate 492 and close the first opening and closing structure 420. The overall operation is simple, convenient, and easy, allowing users to easily replace the filter at home.

[0217] In one embodiment, the air handling module 4 and the air supply module 5 are separately arranged. The air supply module 5 is partially or entirely located above the ceiling 6, and the air handling module 4 is located below the ceiling 6. A heat exchanger is provided inside the first housing 40 for direct and / or indirect treatment of indoor air. The air supply module 5 has a second housing 50, in which an air supply fan 51 is provided. An exhaust port 413 is also provided on the first housing 40, and an air inlet 501 is provided on the second housing 50. The exhaust port 413 and the air inlet 501 are connected by a pipeline.

[0218] In this embodiment, the 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 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 air handling device 200 in single-level settings with limited installation space.

[0219] like Figure 2As 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, an air supply fan 51 is installed inside its second housing 50. Since the air supply fan 51 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 air supply fan 51 can be moved away from the user, and the noise generated by the air supply fan 51 during operation can be isolated using the suspended ceiling 6. This not only enables the installation and application of the air handling device 200 in a single-level environment but also ensures that the air handling device 200 achieves a better quiet operation, guaranteeing a better user experience.

[0220] For single-level apartments, installation space is limited, and there is usually no separate equipment room, making the location for installing the air handling unit 200 very restrictive. Furthermore, in single-level apartment scenarios, users want to make efficient use of all interior space and do not want to install a separate, space-consuming machine indoors. Therefore, one of the main installation locations for the air handling unit 200 is the balcony 600. Therefore, in this embodiment, the 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 air handling unit 200 in other scenarios.

[0221] When the 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.

[0222] 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 an air supply fan 51. 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 and the air inlet 501 of the second housing 50 are connected by a pipeline. After the air supply fan 51 is started, air flows into the first housing 40 through the air inlet, and then into the second housing 50 through its air outlet 413 and the air inlet 501.

[0223] In one embodiment, the heat exchanger includes 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, and the second heat exchanger 22 is used for heat exchange between the refrigerant and water. The water after heat exchange is used to supply indoor radiant pipes to treat the indoor air. Along the direction in which the indoor air flows within the first housing 40, at least part of the connection is located upstream of the first heat exchanger 21 or is arranged corresponding to the first heat exchanger 21.

[0224] In this embodiment, taking a heat exchanger comprising a first heat exchanger 21 and a second heat exchanger 22 as an example, the first heat exchanger 21 is used for heat exchange between the refrigerant and the air flowing in from the air inlet, and the heat-exchanged air can be supplied into the room to regulate the indoor air temperature. The second heat exchanger 22 is used for heat exchange between the refrigerant and water, and the heat-exchanged water is supplied to the indoor radiant piping to regulate the indoor air temperature.

[0225] Since the first heat exchanger 21 can regulate the temperature of the air flowing in through the air inlet, when the air regulated by the first heat exchanger 21 enters the room, compared with the method of regulating the indoor air temperature through indoor radiant pipes, directly supplying the room with the temperature-regulated air can regulate the room temperature more efficiently, so that the room temperature can efficiently approach the target temperature.

[0226] Therefore, in the direction of indoor air flow within the first housing 40, at least a portion of the connection is located upstream of or corresponding to the first heat exchanger 21. When the seal at this portion of the connection (the weakest point) fails, even if some indoor air enters the first housing 40 from this portion of the connection, because the location of this part of the seal is upstream of or corresponding to the first heat exchanger 21, the air will still flow through the first heat exchanger 21 after entering the first housing 40. This prevents indoor air from directly entering the first housing 40 downstream of the first heat exchanger 21 (i.e., not flowing through the first heat exchanger 21), ensuring that the air flowing into the room is all air that has undergone heat exchange treatment by the first heat exchanger 21, reliably ensuring that the air introduced into the room can efficiently regulate the room temperature.

[0227] 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.

[0228] In this embodiment, the first housing 40 can be a hollow box structure. Of course, the first housing 40 can also have other regular or irregular structures. In this embodiment, the first housing 40 is mainly described as being in the shape of a cuboid or a cuboid.

[0229] 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 around the air handling module 4.

[0230] 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, and the first heat exchanger 21 and the second heat exchanger 22 are arranged horizontally in the first housing 40.

[0231] In this embodiment, the heat exchanger installed in the first housing 40 may include a first heat exchanger 21 and a second heat exchanger 22. The first heat exchanger 21 may be a finned heat exchanger or other types of heat exchangers; in this embodiment, a finned heat exchanger is used as an example. The first heat exchanger 21 may be plate-shaped with a certain thickness. The first heat exchanger 21 has a length dimension, a width dimension, and a thickness dimension, with the length dimension typically being the maximum dimension and the thickness dimension typically being the minimum dimension.

[0232] Specifically, the second heat exchanger 22 can be a plate heat exchanger or other types of heat exchangers. In this embodiment, a plate heat exchanger is used as an example. The second heat exchanger 22 can also be plate-shaped with a certain thickness. The second heat exchanger 22 has a length dimension, a width dimension, and a thickness dimension. The length of the second heat exchanger 22 is usually the maximum dimension, and the thickness dimension is usually the minimum dimension.

[0233] The first heat exchanger 21 and the second heat exchanger 22 are arranged laterally within the first housing 40, specifically such that the lengths of both heat exchangers are along the height direction Y (perpendicular to 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 installation 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.

[0234] 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 222, which has a water flow channel 222 inlet and a water flow channel 222 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 flow... The first 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 222 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 222 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.

[0235] 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.

[0236] The second heat exchanger 22 may include a heat exchange body for flowing refrigerant and water. This heat exchange body is generally plate-shaped. The second refrigerant flow channel 221 of the second heat exchanger 22 includes: a second internal refrigerant flow channel disposed within 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 communicating with the second internal refrigerant flow channel through the second refrigerant inlet and the second refrigerant outlet. Specifically, the second refrigerant inlet may be in the form of a refrigerant connector for connecting a refrigerant pipe, and the second refrigerant outlet may also be in the form of a refrigerant connector for connecting a refrigerant pipe.

[0237] 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).

[0238] The first housing 40 may have a set of openings 610 for the refrigerant piping of the outdoor unit 100 and a set of openings 620 for the water channel 222. In this configuration, the first refrigerant channel 211, the second refrigerant channel 221, and the water channel 222 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.

[0239] 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.

[0240] 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 222 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 222 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.

[0241] 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 406 of the first housing 40, the lateral dimension 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 402 of the first housing 40, the front-to-back dimensions of the first housing 40 would increase, creating a feeling of oppression and requiring a greater depth (Z) for cabinets in the scenario. 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.

[0242] In this embodiment, the water in the water channel 222 can exchange heat with the refrigerant in the second refrigerant channel 221. The cooled water / heated water after heat exchange with the refrigerant in the second refrigerant channel 221 can be supplied to the indoor radiant terminal. The indoor radiant terminal releases cold or heat into the room to regulate the indoor temperature. The water channel 222 has a water channel 222 inlet and a water channel 222 outlet. A first water passage can be provided between the water channel 222 inlet and the plate-shaped body. A water pump 223 can be provided on the first water passage to provide driving force for water circulation. The water channel 222 inlet can be in the form of a water pipe connector for connecting a return water pipe.

[0243] A second water passage can be provided between the outlet of the water channel 222 and the plate-shaped body. This second water passage can be equipped with a flow switch, which can be used to control the flow of water. Specifically, the outlet of the water channel 222 can be in the form of a water pipe connector for connecting a water outlet pipe.

[0244] 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.

[0245] 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.

[0246] 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.

[0247] 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 air supply fan 51 is started, a negative pressure can be formed inside the first housing 40 of the 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.

[0248] 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 air handling unit 200 required for temperature and humidity regulation, saving energy.

[0249] 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.

[0250] 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 duct 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 close to the rear side wall 402, interference with other ducts at the top can be avoided, ensuring that the ducts above the top wall 403 of the first housing 40 are arranged in the simplest and most reasonable manner.

[0251] 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 second heat exchanger 22 to the top wall 403 within the first housing 40, and also helps to reduce the length of the refrigerant pipe connecting the first heat exchanger 21 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 ensure the miniaturization of the first housing 40.

[0252] The return air vent 412 is located on the side wall or bottom wall 404 of the first housing 40.

[0253] 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.

[0254] In this embodiment, the fan 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 both 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.

[0255] 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.

[0256] 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 can leave space under the first housing 40 for the installation of sinks, washing machines, etc., and can also facilitate users to operate under 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.

[0257] 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.

[0258] In one embodiment, the air treatment module 4 further includes a filter element, the filter element, the second heat exchanger 22, and the first heat exchanger 21 are arranged laterally in the first housing 40; the front sidewall 401 of the first housing 40 is removable or can be opened to remove the filter element.

[0259] In this embodiment, the air treatment module 4 may also include a filter element, the function and form of which vary slightly depending on the location of the filter element.

[0260] For example, the filter element may include a first filter element 414 disposed between the air inlet and the second heat exchanger 22. Along the airflow direction, the filter element may be disposed downstream of the air inlet and upstream of the second heat exchanger 22. This filter element 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 414 may include a fresh air filter element 491 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.

[0261] Alternatively, the filter element may include a second filter element 415 disposed between the second heat exchanger 22 and the air outlet 502. Specifically, along the air flow direction, the filter element may be disposed downstream of the second heat exchanger 22 and upstream of the exhaust outlet 413. This filter element is used to purify the air after heat exchange in the second heat exchanger 22 before it is discharged through the exhaust outlet 413. Specifically, the second filter element 415 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.

[0262] Alternatively, the filter element may include a first filter element 414 disposed between the air inlet and the second heat exchanger 22, and a second filter element 415 disposed between the second heat exchanger 22 and the air outlet 502. Specifically, the specific arrangement and form of the first filter element 414 and the second filter element 415 can be referred to the above detailed description, and will not be repeated here. It should be noted that the specific forms of the first filter element 414 and the second filter element 415 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.

[0263] 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 filter element can also be arranged laterally within the first housing 40. Taking 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.

[0264] Furthermore, the filter element is a relatively consumable part and needs to be replaced periodically after a predetermined period of use. When it is inserted into the first housing 40 with its thickness direction facing the front sidewall 401 and the rear sidewall 402, the filter element can be replaced by inserting and removing it.

[0265] The front sidewall 401 of the first housing 40 is detachable or openable for removing the filter element. When the front sidewall 401 of the first housing 40 is detachable or openable, the filter element can be easily replaced.

[0266] 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 filter element are arranged horizontally in sequence.

[0267] 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 first heat exchanger 21. The air after heat exchange with the first heat exchanger 21 is then purified by the filter element and discharged from the first housing 40 through the exhaust port 413. Therefore, the air inlet, the first heat exchanger 21, and the filter element are arranged sequentially along the airflow channel 212.

[0268] For the second heat exchanger 22, a temperature sensor for detecting water temperature is typically installed on the water flow channel 222. If the second heat exchanger 22 is located downstream of the first heat exchanger 21, during cooling operations, if the temperature detected by the temperature sensor is too low when the cold air flowing through the first heat exchanger 21 flows through the second heat exchanger 22, it may trigger the anti-freeze protection mechanism of the second heat exchanger 22, leading to malfunction of the corresponding component, increased energy consumption, and potentially reduced component lifespan. Therefore, the second heat exchanger 22 is located upstream of the first heat exchanger 21.

[0269] 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 refrigeration, 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 filter element itself is a component that is not prone to condensation. When the air inlet, the second heat exchanger 22, the first heat exchanger 21, and the filter element are arranged sequentially along the airflow direction, it is equivalent to separating the components prone to condensation from the filter element. This facilitates centralized treatment of condensation generated by the components prone to condensation. 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 filter element.

[0270] 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.

[0271] In this embodiment, when the second heat exchanger 22 is vertically arranged close to or adjacent to the rear sidewall 402 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 first heat exchanger 21, it can perform heat exchange more fully and improve the heat exchange efficiency.

[0272] Furthermore, when the second heat exchanger 22 is vertically positioned close to or adjacent to the rear sidewall 402 of the first housing 40, it ensures that at least the space in the middle of the first heat exchanger 21 is left unused, and the heat exchange efficiency in the middle of the first heat exchanger 21 is the highest. In this case, the mixed air can flow along the flow channel in the middle of the first heat exchanger 21 to the first heat exchanger 21, achieving sufficient contact and heat exchange with the middle region of the first heat exchanger 21, thus achieving a high heat exchange efficiency.

[0273] The air handling module 4 may further include a controller, which can be in the form of an electronic control board or an electronic control box 46. When the second heat exchanger 22 is vertically arranged near the rear side wall 402 of the first housing 40, the controller can be vertically arranged near the front side wall 401 of the first housing 40. This ensures that the flow channel in the middle of the first heat exchanger 21 is not obstructed. Furthermore, by positioning the controller upstream of the first heat exchanger 21, the airflow can also be used to dissipate heat from the controller.

[0274] 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.

[0275] 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 operating in heating mode, a humidity regulating mechanism can be provided on or downstream of the first heat exchanger 21. When the mixed gas consisting of externally introduced air and indoor return air flows through the first heat exchanger 21, 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.

[0276] 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 first heat exchanger 21. When the humidity regulating mechanism is a wet film humidifier 65, the wet film humidifier 65 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.

[0277] 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.

[0278] A solenoid valve 64 is also installed on the purified water inlet pipe 63. The solenoid valve 64 is used to control the opening and closing of the purified water inlet pipe 63. By controlling the opening and closing time of the solenoid valve 64, 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.

[0279] 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, the wet film humidifier 5, and the filter element are arranged horizontally in sequence.

[0280] Based on the above-mentioned arrangement of the air inlet, the second heat exchanger 22, the first heat exchanger 21, and the filter element along the direction of air flow, this embodiment of the application provides a supplementary explanation by adding a wet film humidifier 65 as an example.

[0281] In this embodiment, for the implementation with the wet film humidifier 65, the wet film humidifier 65 can be located downstream of the first heat exchanger 21 and upstream of the filter element along the air flow direction. This arrangement allows the wet film humidifier 65 to humidify the air processed by the first heat exchanger 21. Furthermore, since the wet film humidifier 65 may drip water downwards during use, placing it close to the first heat exchanger 21 facilitates unified drainage of the wet film humidifier 65 and other components prone to generating refrigerant water.

[0282] 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.

[0283] 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.

[0284] 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.

[0285] 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.

[0286] 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.

[0287] 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.

[0288] 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 on the second water receiving tray 67.

[0289] 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.

[0290] 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.

[0291] 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.

[0292] 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.

[0293] 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.

[0294] 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.

[0295] In this embodiment, the air supply fan 51 can be composed of two smaller fans. Combining two smaller fans with a single 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 a single 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.

[0296] In order to minimize the space required during the actual installation of the two fans, the rotating shafts of both fans extend in the longitudinal direction. Furthermore, the rotating shafts of the first impeller of one fan and the second impeller of the other fan can be staggered.

[0297] 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 blower 51, such as the curvature of the surrounding plate 513, and this application does not impose a single numerical limitation.

[0298] In one embodiment, the second housing 50 is placed horizontally above the ceiling 6. A first air inlet 501 is provided on each of two adjacent sides of the second housing 50. The second housing 50 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.

[0299] In this embodiment, the second housing 50 has a box-like structure with relative length, width, and thickness dimensions. The thickness dimension can be the minimum dimension. The second housing 50 can be horizontally placed above the ceiling 6, specifically, the thickness of the second housing 50 extends along the height direction Y. The second housing 50 has opposite top and bottom surfaces, opposite front and rear sides, and opposite left and right sides. Taking the right side of the second housing 50 as an example where an air outlet 502 is provided, first air inlets 501 can be provided on the bottom and front sides of the fan housing. 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 housing installation.

[0300] like Figure 7 As shown, in one embodiment, a cavity 514 is provided between the air outlet 515 of the air supply fan 51 and the air outlet 502 of the second housing 50.

[0301] The cavity 514 is a hollow cavity body with a certain flow cross-sectional size. Specifically, the cavity 514 can be formed by a portion of the second shell 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 facing 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.

[0302] 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 enters the cavity 514 from the smaller flow area of ​​the air outlet 515, the cavity 514 reduces the aerodynamic noise of the airflow exiting the air outlet 515, allowing for smoother airflow and achieving noise reduction.

[0303] In one embodiment, the air handling module 4 may further include a heating unit 45.

[0304] Located downstream of a filter element (e.g., a high-efficiency particulate air filter) along the direction of air flow, the heating unit 45 heats the air exiting the filter element 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 across the cross-section of the exhaust port 413 to uniformly heat the air.

[0305] 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. Alternatively, in the above scenario, the outdoor unit 100's compressor can be operated at a lower power by activating the cooling mode. This combination of cooling dehumidification and heating dehumidification by the heating unit 45 achieves a highly efficient dehumidification effect.

[0306] In one embodiment, the air inlet includes a fresh air inlet 411 and a return air inlet 412. The fresh air inlet 411 is used to connect to the outside to introduce outdoor air, and the return air inlet 412 is used to connect to the inside to introduce indoor air into the 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 air handling device 200.

[0307] 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 air handling unit 200 may include a first housing 40. When the fan is started, a negative pressure can be formed inside the first housing 40 of the 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.

[0308] 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 air handling unit 200 required for temperature and humidity regulation, saving energy.

[0309] In one embodiment, the fan 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 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.

[0310] In this embodiment, the fan may include a fresh air fan 41 for introducing outdoor air into the air handling unit 200, and a supply fan 51 for delivering the mixed heat-exchange treated outdoor air and indoor air to the indoor air delivery terminal.

[0311] 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 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.

[0312] 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.

[0313] 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.

[0314] 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.

[0315] Specifically, the flow regulating device can be electrically connected to a controller, which in turn is electrically connected to an air quality detection device. 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. Furthermore, 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.

[0316] 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.

[0317] like Figure 1 As shown, the air handling device 200 provided in this application embodiment can be applied in an indoor air handling system, which mainly includes the air handling device 200 and an outdoor unit 100.

[0318] The outdoor unit 100 may include a compressor, 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 an air handling unit 200 via refrigerant connecting pipes. This allows it to cooperate with indoor air delivery terminals and indoor radiant terminals to achieve indoor temperature and / or humidity and / or air cleanliness regulation.

[0319] 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, "a plurality of" means two or more.

[0320] 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.

[0321] The above are merely a few embodiments of this utility model. Although the embodiments disclosed in this utility model are as described above, the content is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed in this utility model. However, the patent protection scope of this utility model shall still be determined by the scope defined in the appended claims.

Claims

1. An air handling device, characterized in that, The air handling device includes an air handling module and an air supply module connected to each other. The air handling module has a first housing with an air inlet. The air supply module is used to allow indoor air to enter the air handling module from the air inlet. The first housing also has an opening, and the first housing further includes a first opening and closing structure, which is disposed at the opening to open and close the opening. The air handling module also includes a mating structure for sealing and adapting to the first opening and closing structure. When the first opening and closing structure is in the position of closing the opening, the first opening and closing structure and the mating structure are sealed and adapted at the connection.

2. The air handling apparatus as claimed in claim 1, characterized in that, The first housing is provided with a heat exchanger and / or a filter element, and indoor air entering from the air inlet can pass through the heat exchanger and / or the filter element; Along the direction of indoor air flow within the first housing, at least a portion of the connection is located upstream of the heat exchanger and / or the filter element, or at least a portion of the connection is disposed corresponding to the heat exchanger and / or the filter element.

3. The air handling apparatus as described in claim 2, characterized in that, The first housing is provided with a filter element, which includes a first filter element and a second filter element, with the first filter element disposed at the air inlet; At least some of the connections are located upstream of the second filter element, or at least some of the connections are configured corresponding to the second filter element.

4. The air handling apparatus as described in claim 2, characterized in that, The first opening and closing structure includes a door body, which has opposing left and right sides, and opposing upper and lower sides, and the door body can rotate relative to the opening; When the first opening and closing structure is in the position of closing the opening, the left side, the right side, the upper side, and the lower side are all sealed and adapted to the mating structure at the connection point. The position where the left side or the right side is sealed and adapted to the mating structure is located upstream of the heat exchanger and / or the filter element or corresponds to the heat exchanger and / or the filter element.

5. The air handling apparatus as described in claim 2, characterized in that, The first opening and closing structure includes a first door body and a second door body; The first door has a first left side and a first right side, and a first upper side and a first lower side. The first door can rotate to the left relative to the opening. The first left side, the first right side, the first upper side, and the first lower side are all sealed and adapted to the mating structure at the connection. At least the position where the first right side is sealed and adapted to the mating structure is located upstream of the heat exchanger and / or the filter element or corresponds to the heat exchanger and / or the filter element. The second door has a second left side and a second right side, and a second upper side and a second lower side. The second door can rotate to the right relative to the opening. The second left side, the second right side, the second upper side, and the second lower side are all sealed and adapted to the mating structure at the connection. At least the position where the second left side is sealed and adapted to the mating structure is located upstream of the heat exchanger and / or the filter element or corresponds to the heat exchanger and / or the filter element.

6. The air handling apparatus as claimed in claim 5, characterized in that, The mating structure includes a mating plate connected to the heat exchanger or the first housing. The first right side portion is located upstream of the heat exchanger and / or the filter element or corresponds to the heat exchanger and / or the filter element in a sealing and adapting position with the mating plate. The second left side portion is located upstream of the heat exchanger and / or the filter element or corresponds to the heat exchanger and / or the filter element in a sealing and adapting position with the mating plate.

7. The air handling apparatus as claimed in claim 6, characterized in that, The mating structure also includes the edge of the opening. The first left side portion, the first upper side portion, the first lower side portion, the second right side portion, the second upper side portion, and the second lower side portion are all adapted to seal the edge of the opening.

8. The air handling apparatus as claimed in claim 2, characterized in that, The projection of the heat exchanger and / or the filter element onto the plane of the opening falls into the opening, which is used to remove the heat exchanger and / or the filter element.

9. The air handling apparatus as claimed in claim 1, characterized in that, The first opening and closing structure includes an openable or detachable structure, and the mating structure includes the edge of the opening and / or a mating plate installed on the air handling module.

10. The air handling apparatus as claimed in claim 1, characterized in that, The air inlet includes a fresh air inlet and a return air inlet, and the first housing has a fresh air channel and a return air channel that are isolated from each other. A fresh air filter is installed inside the fresh air duct, and an opening for removing the fresh air filter is provided on the wall of the fresh air duct. The fresh air duct also has a second opening and closing structure, which is used to open and close the opening. When the second opening and closing structure is in the position of closing the opening, the second opening and closing structure is adapted to the wall seal of the fresh air duct.

11. The air handling apparatus as claimed in claim 10, characterized in that, The second opening and closing structure includes an openable structure or a detachable structure.

12. The air handling apparatus as claimed in claim 11, characterized in that, The detachable structure includes a magnetic adsorption plate, which is used to magnetically adhere to the wall of the fresh air duct and cover the opening.

13. The air handling apparatus as claimed in claim 1, characterized in that, The air handling module and the air supply module are separately configured, with the air supply module partially or entirely installed above the ceiling and the air handling module installed below the ceiling. The first housing is equipped with a heat exchanger for directly and / or indirectly treating indoor air. The air supply module has a second housing, in which an air supply fan is installed. The first housing is also equipped with an exhaust port, and the second housing is equipped with an air inlet. The exhaust port and the air inlet are connected by a pipeline.

14. The air handling apparatus as claimed in claim 13, characterized in that, 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. Along the direction of indoor air flow within the first housing, at least a portion of the connection is located upstream of or corresponding to the first heat exchanger.

15. The air handling apparatus as claimed in claim 13, characterized in that, The first housing has a lateral dimension in the lateral direction and a longitudinal dimension in the longitudinal direction, wherein the lateral dimension is greater than the longitudinal dimension.

16. The air handling apparatus as claimed in claim 14, 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.

17. The air handling apparatus as claimed in claim 16, 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.

18. The air handling apparatus as claimed in claim 14, 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.

19. The air handling apparatus as claimed in claim 16, characterized in that, The air handling module also includes a filter element, and the filter element, the second heat exchanger, and the first heat exchanger are arranged laterally in the first housing; The first opening and closing structure is the front sidewall of the first housing; The front sidewall of the first housing is removable or can be opened to remove the filter element.

20. The air handling apparatus as claimed in claim 19, 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 filter element are arranged horizontally in sequence.

21. The air handling apparatus as claimed in claim 16, characterized in that, The second heat exchanger is vertically positioned close to or adjacent to the rear side wall of the first housing.

22. The air handling apparatus as claimed in claim 14, characterized in that, The impeller of the blower has its rotation axis extending longitudinally.

23. The air handling apparatus as claimed in claim 22, 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.

24. The air handling apparatus as claimed in claim 22, characterized in that, The second housing is placed horizontally above the ceiling. A first air inlet is provided on each of the two adjacent sides of the second housing. The second housing also includes a sealing plate. When one of the first air inlets is connected to the exhaust port through the pipe, the sealing plate is used to seal and block the other first air inlet.

25. The air handling apparatus as claimed in claim 14, characterized in that, A cavity is provided between the air inlet of the blower and the air outlet of the second housing.

26. The air handling apparatus as claimed in claim 1, characterized in that, The air handling module also includes a fastening structure for pressing the first opening / closing structure onto the mating structure.

27. The air handling apparatus as claimed in claim 26, characterized in that, The fastening structure includes an upper fastening structure and a lower fastening structure. The upper fastening structure is used to press the upper part of the first opening and closing structure against the upper part of the mating structure, and the lower fastening structure is used to press the lower part of the first opening and closing structure against the lower part of the mating structure.

28. The air handling apparatus as claimed in claim 26 or 27, characterized in that, The fastening structure is a quick-release structure.

29. The air handling apparatus as claimed in claim 28, characterized in that, The quick-release structure is a snap-fit ​​structure, which includes a first snap-fit ​​part and a second snap-fit ​​part. The first snap-fit ​​part is disposed on the air treatment module, and the second snap-fit ​​part is disposed on the first opening and closing structure. The first snap-fit ​​part and the second snap-fit ​​part engage with each other.

Images