Duct-type air conditioner

Abstract

A duct-type air conditioner, the duct-type air conditioner comprising a housing (1), and a heat exchanger module (2). The housing (1) comprises a back plate (11) and two side plates (12), the two side plates (12) being connected to two ends of the back plate (11) in the left-right direction, respectively, so as to define an accommodating cavity (1a) having a front side opening. The heat exchanger module (2) comprises a heat exchanger (21) and a connecting member (22), the connecting member (22) being disposed on the heat exchanger (21). The heat exchanger (21) is located in the accommodating cavity (1a), and first fasteners (100) are detachably inserted into the connecting member (22) and the side plates (12) from the front side.

Description

A duct machine

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311092072.9 and application date of August 28, 2023, and the Chinese patent application with application number 202322320998.0 and application date of August 28, 2023, and claims the priority of the above two Chinese patent applications. The entire contents of the above two Chinese patent applications are hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the technical field of air conditioning, and in particular to a ducted air conditioner. Background Art

[0004] Ducted air conditioners are used to condition indoor air and improve the indoor environment. They contain a heat exchanger that regulates the temperature of the air flowing through them. Ducted air conditioners are often installed in confined spaces like corners or closets. When the heat exchanger needs to be removed for after-sales maintenance, it's difficult to do so, resulting in low efficiency.

[0005] Summary of the Invention

[0006] In view of this, the embodiments of the present application hope to provide a duct machine that is easy to disassemble and assemble a heat exchanger.

[0007] To achieve the above objectives, the present invention provides a ducted air conditioner, comprising:

[0008] The housing comprises a back plate and two side plates, wherein the two side plates are respectively connected to both ends of the back plate in the left and right directions to define a receiving cavity with a front opening;

[0009] The heat exchanger module includes a heat exchanger and a connecting piece, wherein the connecting piece is arranged on the heat exchanger, the heat exchanger is located in the accommodating cavity, and a first fastener is detachably passed through the connecting piece and the side plate from the front side.

[0010] In some embodiments, a flange is formed at the front end of the side panel, the connecting member is located on the outside of the shell, the left and right ends of the connecting member extend to the flange, and the first fastener is detachably inserted into the connecting member and the flange from the front side.

[0011] In some embodiments, the heat exchanger module includes a first fixing frame, a second fixing frame and a water collecting tray, the water collecting tray is arranged on the bottom side of the heat exchanger, the first fixing frame and the second fixing frame are respectively connected to the two side plates of the heat exchanger along the left and right directions, and the first fixing frame and the second fixing frame are both connected to the water collecting tray.

[0012] In some embodiments, the first fixing bracket and the second fixing bracket both include a bracket, the bracket of the first fixing bracket and the bracket of the second fixing bracket are spaced apart in the left-right direction and connected to the water receiving tray, and the second fastener is detachably passed through the bracket and the water receiving tray from the front side.

[0013] In some embodiments, the bracket includes a support rod and a fixing ear, the support rod is located on the top side of the water receiving tray, the fixing ear is bent from the support rod toward the bottom side, the fixing ear is located on the front side of the water receiving tray, and the second fastener is detachably inserted into the fixing ear and the water receiving tray from the front side.

[0014] In some embodiments, the water receiving tray is formed with a water receiving trough and an upper opening communicating with the water receiving trough, and the bottom of the heat exchanger is inserted into the water receiving trough through the upper opening of the water receiving trough.

[0015] In some embodiments, both side surfaces of the bottom of the heat exchanger along the left and right directions are sealed with both side surfaces of the water receiving tank along the left and right directions by a first sealing layer.

[0016] In some embodiments, the inner surfaces of the side panels are covered with a thermal insulation layer, and both sides of the heat exchanger module in the left and right directions are tightly pressed against the thermal insulation layer.

[0017] In some embodiments, the heat exchanger module includes inlet and outlet pipes, which are connected to the refrigerant pipes of the heat exchanger to input or output refrigerant. The shell includes an end plate and a pressure plate. The end plate connects the two side plates along the length direction and is away from one end of the heat exchanger. The end plate is formed with a pipe through-hole, and the front end of the end plate is formed with a take-in and take-out port connected to the pipe through-hole. The inlet and outlet pipes can enter the pipe through-hole through the take-in and take-out port. The periphery of the pressure plate is formed with an open groove, and the pressure plate is detachably connected to the end plate. The wall of the open groove is located on the side of the wall of the inlet and outlet pipe away from the pipe through-hole to limit the inlet and outlet pipes from entering the take-in and take-out port.

[0018] In some embodiments, the length direction of the side panels is consistent with the up-down direction, and the housing includes an end panel having an air outlet, and the end panel connects the upper ends of the two side panels.

[0019] In some embodiments, the housing includes a front cover plate, which covers a portion of the front opening of the accommodating cavity, and the other portion of the front opening of the accommodating cavity is a front air inlet. The connecting member is located below the front cover plate, and the connecting member abuts against the front cover plate.

[0020] In some embodiments, the duct machine includes a lower base plate and a shielding plate, the shielding plate is detachably connected to the lower base plate, the lower base plate is connected to the lower ends of the two side panels, the lower base plate is formed with a lower air inlet, and the shielding plate can shield one of the front air inlet and the lower air inlet.

[0021] The duct machine provided in the embodiment of the present application has a first fastener that is detachably inserted into the connecting piece and the side panel from the front, and the front space of the shell is open. Even if the duct machine is installed in a corner or a closet, the side panel faces the wall or the closet panel, and the wall or the closet panel will not hinder the operator from removing or installing the first fastener from the front, thereby facilitating the operator's after-sales disassembly and assembly operations and improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a schematic structural diagram of an air duct unit in an embodiment of the present application;

[0023] Figure 2 is an enlarged schematic diagram of point A in Figure 1;

[0024] FIG3 is a schematic diagram of a portion of the structure shown in FIG1 , wherein the front cover is not shown;

[0025] FIG4 is a schematic diagram of the assembly process of the heat exchanger module and the housing in one embodiment of the present application;

[0026] FIG5 is a schematic diagram of a partial structure of a heat exchanger module in one embodiment of the present application;

[0027] FIG6 is a schematic diagram of the assembly of a heat exchanger and a water receiving tray in one embodiment of the present application;

[0028] FIG7 is a schematic structural diagram of an air duct unit in another embodiment of the present application. DETAILED DESCRIPTION

[0029] In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other. The detailed description in the specific implementation method should be understood as an explanation of the purpose of this application and should not be regarded as an improper limitation on this application.

[0030] It should be noted that the orientations or positional relationships of "upper," "lower," "front," "back," "left," and "right" in the embodiments of the present application are based on the orientations or positional relationships shown in Figures 1 and 2. It should be understood that these orientation terms are merely for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present application. The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] The ducted air conditioner provided in the embodiments of the present application can be a wall-mounted ducted air conditioner. A wall-mounted ducted air conditioner refers to a device in which the rear panel 11 of the housing 1 can be used to secure the device to a vertical mounting wall. For example, the mounting wall can be a vertical wall or a vertical panel. For example, if the wall-mounted ducted air conditioner is installed in a closet, the rear panel 11 of the housing 1 can be secured to the vertical panel of the closet.

[0032] Ducted air conditioners are usually installed in small spaces, such as corners or closets. This results in the two side panels 12 of the outer casing 1 along the left and right directions usually facing the wall or the closet panel. In the related art, if the first fastener 100 is passed through the side panel 12 and the heat exchanger 21 from the left or right side from the outside of the outer casing 1, during the after-sales maintenance of the heat exchanger 21, there is insufficient maintenance space, and the wall or panel will hinder the operator from removing the first fastener 100 with tools. On the other hand, the inner surfaces of the two side panels 12 along the left and right directions of the outer casing 1 are usually covered with an insulation layer. The first fastener 100 is passed through the side panels 12 on both sides. During the installation process, the first fastener 100 needs to penetrate the insulation layer, which not only affects the insulation effect, but may also cause the side panel 12 to sag, affecting the appearance.

[0033] Referring to Figures 1 to 4 , an embodiment of the present application provides a ducted air conditioner comprising a housing 1 and a heat exchanger module 2. The housing 1 comprises a rear panel 11 and two side panels 12. The side panels 12 are connected to the left and right ends of the rear panel 11 to define a receiving chamber 1a having a front opening. Specifically, the rear ends of the side panels 12 are connected to the rear panel 11.

[0034] The heat exchanger module 2 includes a heat exchanger 21 and a connector 22. The connector 22 is provided on the heat exchanger 21, which is located within the accommodating cavity 1a. The first fastener 100 is detachably provided through the connector 22 and the side panel 12 from the front. In other words, the connector 22 and the side panel 12 are detachably connected via the first fastener 100.

[0035] It should be noted that the front refers to the side facing the operator, and the rear refers to the direction opposite to the front. The left-right direction is perpendicular to the front-back direction.

[0036] The duct air conditioner provided in the embodiment of the present application has a first fastener 100 that is detachably inserted into the connecting piece 22 and the side panel 12 from the front. The front space of the housing 1 is open. Even if the duct air conditioner is installed in a corner or a closet, the side panel 12 faces the wall or the closet panel. The wall or the closet panel will not hinder the operator from removing or installing the first fastener 100 from the front, thereby facilitating the operator's after-sales disassembly and assembly operations and improving maintenance efficiency.

[0037] For example, in one embodiment, a first fixing hole is formed at the front end of the side panel 12, and second fixing holes are formed at both the left and right ends of the connector 22. The first fastener 100 is inserted from the front into the second and first fixing holes. This design allows operators to visually check whether the second and first fixing holes are aligned, avoiding blind insertion problems caused by inserting the first fastener 100 from both the left and right holes, and reducing the difficulty of installing the first fastener 100.

[0038] The first fastener 100 includes but is not limited to a screw or a bolt, etc. Taking the first fastener 100 as a screw as an example, at least one of the second fixing hole and the first fixing hole is a threaded hole threadedly matched with the first fastener 100 .

[0039] In one embodiment, referring to Figures 3 and 4 , a flange 121 is formed at the front end of the side panel 12. A connector 22 is located outside the housing 1, with its left and right ends extending onto the flange 121. A first fastener 100 is detachably inserted through the connector 22 and flange 121 from the front. For example, second fixing holes are formed at the left and right ends of the connector 22, while a first fixing hole is formed on the flange 121. The first fixing hole may be a threaded hole. This allows operators to directly inspect the connector 22 and first fastener 100, simplifying assembly and disassembly.

[0040] In one embodiment, the back plate 11 and the side plates 12 can both be made of metal materials, so that the back plate 11 and the side plates 12 have good structural strength.

[0041] In one embodiment, referring to Figures 3 to 6, the heat exchanger module 2 includes a first fixing frame 23, a second fixing frame 24 and a water receiving tray 25. The water receiving tray 25 is arranged on the bottom side of the heat exchanger 21. The first fixing frame 23 and the second fixing frame 24 are respectively connected to the two side plates of the heat exchanger 21 along the left and right directions, and the first fixing frame 23 and the second fixing frame 24 are both connected to the water receiving tray 25.

[0042] The water tray 25 is used to receive condensed water from the heat exchanger 21. Condensed water is liquid water produced by the condensation of moisture in the air after the refrigerant in the heat exchanger 21 absorbs heat from the air. The water tray 25 and the heat exchanger 21 are fixed together by the first fixing bracket 23 and the second fixing bracket 24. This allows the heat exchanger 21 and the water tray 25 to be installed simultaneously in the accommodating cavity 1a during the assembly of the heat exchanger module 2 and the housing 1.

[0043] In one embodiment, referring to Figures 3 to 6 , the first and second fixing brackets 23 and 24 each include a bracket 201. The brackets 201 of the first and second fixing brackets 23 and 24 are spaced apart in the left-right direction and connected to the water tray 25. A second fastener 200 is removably inserted through the brackets 201 and the water tray 25 from the front. If the heat exchanger 21 and the water tray 25 need to be installed or removed separately at a later time, the operator can remove or install the second fastener 200 from the front. Left and right walls or cabinet panels will not hinder the operator's removal or installation of the second fastener 200 from the front, facilitating the installation and removal process. For example, if only the heat exchanger 21 needs to be removed, the first and second fasteners 100 and 200 can be removed from the front separately, allowing the heat exchanger 21 to be removed independently without touching the water tray 25.

[0044] In one embodiment, the second fastener 200 includes but is not limited to a screw or a bolt.

[0045] In one embodiment, the heat exchanger 21 includes a coil and two side plates. The coil is secured to the side plates at its left and right ends. The heat exchanger 21 is generally plate-shaped. The side plates secure the coil. A first mounting bracket 23 and a second mounting bracket 24 are connected to the side plates to prevent damage to the coil. The coil circulates refrigerant and exchanges heat with the airflow passing through it, regulating the airflow's temperature.

[0046] For example, in one embodiment, the coil includes multiple straight tubes and multiple elbows. The left and right ends of the straight tubes are respectively passed through two side panels. The ends of each pair of straight tubes are connected by an elbow, so that the multiple straight tubes and the elbows together form a continuous pipeline for circulating the refrigerant. The side panels may be formed with multiple spaced-apart insertion holes for passing the straight tubes. The side panels can maintain appropriate distances between the multiple straight tubes, thereby providing a secure and position-limiting function.

[0047] In one embodiment, referring to Figures 5 and 6 , bracket 201 includes a support rod 2011 and a fixing ear 2012. Support rod 2011 is located on the top side of water receiving tray 25. Fixing ear 2012 bends from support rod 2011 toward the bottom side. Fixing ear 2012 is located on the front side of water receiving tray 25. Second fastener 200 is detachably inserted through fixing ear 2012 and water receiving tray 25 from the front. This design results in a simple structure and low cost for bracket 201.

[0048] For example, in one embodiment, the fixing ear 2012 is formed with a third fixing hole, the water tray 25 is formed with a fourth fixing hole, and the second fastener 200 is inserted from the front into the third and fourth fixing holes. This design allows operators to visually check whether the third and fourth fixing holes are aligned, avoiding blind insertion of the second fastener 200 and reducing the difficulty of installation of the second fastener 200.

[0049] In one embodiment, referring to Figures 3 to 6 , the first fixing frame 23 includes a first fixing member 231, and the second fixing frame 24 includes a second fixing member 241. The first fixing member 231 connects one of the side panels and one of the brackets 201, while the second fixing member 241 connects the other side panel and the other bracket 201. The first fixing member 231 and the second fixing member 241 are spaced apart in the left-right direction to form a placement cavity. The first fixing member 231 is formed with a first guide groove 231a extending from top to bottom, and the second fixing member 241 is formed with a second guide groove 241a extending from top to bottom. The filter screen is inserted into the placement cavity from the top side, with the filter screen's ends in the left-right direction positioned within the first guide groove 231a and the second guide groove 241a, respectively. The first fixing member 231 is an integrally molded structure. This reduces the assembly process for the first fixing member 231. The first fixing member 231 and the second fixing member 241 can be used to strengthen the strength of the side plate and can also be used to form the first guide groove 231a and the second guide groove 241a, achieving the purpose of dual use.

[0050] The filter can be used to filter airflow. Exemplary functions of the filter include but are not limited to filtering dust in the airflow and / or sterilizing.

[0051] For example, the first fixing member 231 can be non-detachably or detachably connected to the bracket 201. For example, the first fixing member 231 is welded to the bracket 201. For example, the second fixing member 241 can be non-detachably or detachably connected to the bracket 201. For example, the second fixing member 241 is welded to the bracket 201.

[0052] In one embodiment, the second fixing member 241 includes a positioning plate and a guide rail. The guide rail is detachably mounted on the front side of the positioning plate. Together, the guide rail and the positioning plate define a second guide groove 241a. The positioning plate and the guide rail are manufactured independently, that is, they are separate components. The guide rail is detachably connected to the positioning plate to facilitate installation and removal of the guide rail. The side panels of the heat exchanger 21 are typically equipped with at least one sensor. The guide rail can be removed to expose the sensor mounted on the side panel, facilitating sensor inspection.

[0053] In one embodiment, the water receiving tray 25 is formed with a water receiving trough and an upper opening communicating with the water receiving trough. The bottom of the heat exchanger 21 is inserted into the water receiving trough through the upper opening. The water receiving trough is used to store condensed water. The bottom of the heat exchanger 21 is inserted into the water receiving trough so that the condensed water on the heat exchanger 21 can flow along the surface of the heat exchanger 21 into the water receiving trough under the influence of gravity and other factors.

[0054] In one embodiment, both left and right side surfaces of the bottom of the heat exchanger 21 are sealed to both left and right side surfaces of the water receiving trough via a first sealing layer. This prevents air leakage from the gap between the left and right side surfaces of the bottom of the heat exchanger 21 and the water receiving trough.

[0055] The first sealing layer can be made of a flexible material. For example, the first sealing layer can be made of a sponge.

[0056] In one embodiment, the inner surfaces of the side panels 12 are covered with an insulation layer, and both sides of the heat exchanger module 2 in the left-right direction are in close contact with the insulation layer. For example, the side of the first fixing bracket 23 near the side panel 12 and the side of the second fixing bracket 24 near the side panel 12 are in close contact with the insulation layer, and the side surfaces of the water tray 25 in the left-right direction are in close contact with the insulation layer. This design ensures that airflow flows through the front surface of the heat exchanger 21, preventing air leakage through the gap between the side panels 12 and the sides of the heat exchanger module 2 in the left-right direction.

[0057] The insulation layer can be made of insulation material. For example, the insulation layer can be made of glass wool or the like.

[0058] In one embodiment, both sides of the heat exchanger module 2 along the left-right direction can be covered with a second sealing layer, with the interference between the second sealing layer and the side panel 12 ranging from 0 mm to 5 mm. In other words, the deformation of the second sealing layer can be 0 mm, 1 mm, 2 mm, or 5 mm, etc. For example, the side of the first fixing bracket 23 near the side panel 12 and the side of the second fixing bracket 24 near the side panel 12 are both covered with the second sealing layer.

[0059] The second sealing layer can be made of a flexible material. For example, the second sealing layer can be made of a sponge.

[0060] It should be noted that the unit "mm" is millimeter.

[0061] In one embodiment, the inner surface of the side plate 12 is covered with a thermal insulation layer, and the interference between the second sealing layer and the thermal insulation layer is 0 mm to 5 mm. In other words, the deformation of the second sealing layer is 0 mm to 5 mm.

[0062] In one embodiment, referring to Figures 1 to 4 , the heat exchanger module 2 includes an inlet and outlet pipe 26 , which communicates with the refrigerant pipe of the heat exchanger 21 to input or output refrigerant. The housing 1 includes an end plate 13 and a pressure plate 14 . The end plate 13 connects the two side plates 12 at one end thereof, which is away from the heat exchanger 21 along the longitudinal direction. The end plate 13 is formed with a pipe insertion opening 13a . The front end of the end plate 13 is formed with a take-in / take-out opening 13b (see Figure 4 ) that communicates with the pipe insertion opening 13a . The inlet and outlet pipe 26 can enter the pipe insertion opening 13a through the take-in / take-out opening 13b . The pressure plate 14 is formed with an open groove 14a on the periphery thereof. The pressure plate 14 is detachably connected to the end plate 13 . The wall of the open groove 14a is located on the side of the wall of the inlet and outlet pipe 26 away from the pipe insertion opening 13a to restrict the inlet and outlet pipe 26 from entering the take-in / take-out opening 13b . In other words, the open groove 14a is an open-loop structure that opens toward the periphery.

[0063] For example, if the inlet and outlet pipes 26 need to be removed, the pressure plate 14 is removed, and the inlet and outlet pipes 26 can be taken out from the front through the access opening 13b. If the inlet and outlet pipes 26 need to be installed, the inlet and outlet pipes 26 can be pushed into the pipe insertion opening 13a from the front through the access opening 13b, and the pressure plate 14 is then fixed to the end plate 13 so that the wall surface of the opening 14a is located on the side of the inlet and outlet pipes 26 away from the wall surface of the pipe insertion opening 13a, thereby restricting the inlet and outlet pipes 26 from entering the access opening 13b.

[0064] Compared with the assembly method in which the inlet and outlet pipes 26 are passed through one side of the end plate 13 in the thickness direction, the present application limits the inlet and outlet pipes 26 by the pressure plate 14, which makes it easier to disassemble the inlet and outlet pipes 26 in time during the maintenance of the heat exchanger 21, and the operation is simple and convenient.

[0065] The pressure plate 14 and the end plate 13 are detachably connected by a third fastener. The third fastener includes, but is not limited to, screws or bolts. The third fastener is inserted through the pressure plate 14 and the end plate 13 from the front. This facilitates removal or installation of the third fastener from the front.

[0066] For example, in one embodiment, the wall surface of the opening groove 14a and the wall surface of the pipe-through opening 13a enclose a closed loop hole, and the inner diameter of the closed loop hole is adapted to the outer diameter of the inlet and outlet pipe 26. In this way, the closed loop hole can effectively limit the inlet and outlet pipe 26.

[0067] In one embodiment, the inner circumference of the closed loop hole and the outer circumference of the inlet and outlet pipe 26 can be sealed by a third sealing layer. In this way, air leakage through the gap between the inner circumference of the closed loop hole and the outer circumference of the inlet and outlet pipe 26 is avoided.

[0068] The third sealing layer can be made of a flexible material. For example, the third sealing layer can be made of a sponge.

[0069] For example, the inlet and outlet pipes 26 may include two independent inlet and outlet pipes, and the inlet and outlet pipes are respectively connected to the head and tail ends of the coil.

[0070] In one embodiment, referring to Figures 1 to 4 , the longitudinal direction of the side panels 12 aligns with the vertical direction. The housing 1 includes an end panel 13 having an air outlet 13c, which connects the upper ends of the two side panels 12. In other words, the airflow within the accommodating chamber 1a is discharged from the ducted air conditioner through the upper air outlet 13c. For example, the end of the inlet and outlet pipes 26 facing away from the heat exchanger 21 faces upward.

[0071] In one embodiment, referring to Figures 1 to 4, the housing 1 includes a front cover 15, which covers a portion of the front opening of the accommodating chamber 1a. The other portion of the front opening of the accommodating chamber 1a is the front air inlet 1ab. The connector 22 is located below the front cover 15, and the connector 22 abuts against the front cover 15. With this design, the airflow enters the accommodating chamber 1a from the front front air inlet 1ab, flows through the heat exchanger 21, and is discharged from the duct unit through the upper air outlet 13c. The front space is open, which facilitates the entry of indoor airflow into the accommodating chamber 1a. The connector 22 abuts against the lower surface of the front cover 15, allowing the airflow from the air inlet to flow entirely through the heat exchanger 21.

[0072] In one embodiment, referring to Figures 1, 3, and 7, the duct unit includes a lower base plate and a shielding plate 16. The shielding plate 16 is detachably connected to the lower base plate. The lower base plate connects to the lower ends of the two side panels 12 and forms a lower air inlet. The shielding plate 16 can shield either the front air inlet 1ab or the lower air inlet. This design allows for the selection of air intake through only the front air inlet 1ab, only the lower air inlet, or both, depending on the needs. This allows the duct unit to accommodate more diverse and complex installation environments, improving its applicability.

[0073] In one embodiment, the detachable connection between the shielding plate 16 and the lower base plate includes but is not limited to screw or bolt connection.

[0074] In some embodiments, referring to FIG. 1 and FIG. 4 , the end plate 13 , the back plate 11 , the two side plates 12 , the front cover plate 15 and the bottom plate are collectively arranged to form a housing 1 having a receiving cavity 1 a , and the shape of the housing 1 is substantially a rectangular parallelepiped.

[0075] In one embodiment, referring to Figures 2 to 4 , the heat exchanger module 2 can enter or exit the accommodating chamber 1a through the front opening, and the inlet and outlet pipes 26 can enter or exit the pipe opening 13a from the front through the access opening 13b. Taking the installation of the heat exchanger module 2 as an example, after the chassis, which is composed of the back panel 11, two side panels 12, end panel 13, and lower base panel, is assembled, the heat exchanger module 2 can enter and exit the accommodating chamber 1a through the front opening. The heat exchanger module 2 is then flipped backward as a whole, allowing the inlet and outlet pipes 26 to enter the pipe opening 13a from the front through the access opening 13b. The first fasteners 100 are then detachably inserted through the connector 22 and the side panels 12 from the front, and the pressure plate 14 is detachably connected to the end panel 13. This completes the assembly of the heat exchanger module 2 and the chassis. That is to say, the chassis is composed of the back panel 11, the two side panels 12, the end panel 13 and the lower bottom panel, and the heat exchanger module 2 is assembled into the chassis as a whole. This can avoid the possibility of chassis deformation and effectively improve the assembly efficiency of the duct machine.

[0076] In one embodiment, referring to Figures 1 and 3, the duct air conditioner includes a fan 4 and a control device 3. The control device 3 and the fan 4 are both located in the accommodating chamber 1a. The control device 3, the fan 4, and the heat exchanger 21 are arranged in sequence from top to bottom. For example, the water receiving tray 25 abuts the inner bottom surface of the outer shell 1, that is, the connector 22 abuts the front cover 15, the water receiving tray 25 abuts the inner bottom surface of the lower bottom plate, and the lower air inlet is located on the front side of the water receiving tray 25. With this design, both the airflow from the front air inlet 1ab and the airflow from the lower air inlet flows through the filter and the heat exchanger 21, then enters the fan 4, and is discharged through the air outlet 13c.

[0077] In the description of this application, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in further embodiments", or "exemplary" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in this application and features of different embodiments or examples, unless they are mutually inconsistent.

[0078] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A duct machine, comprising: The housing comprises a back plate and two side plates, wherein the two side plates are respectively connected to both ends of the back plate in the left and right directions to define a receiving cavity with a front opening; The heat exchanger module comprises a heat exchanger and a connecting piece, wherein the connecting piece is arranged on the heat exchanger, the heat exchanger is located in the accommodating cavity, and a first fastener is detachably inserted through the connecting piece and the side plate from the front side.

2. According to the air duct machine according to claim 1, a flange is formed at the front end of the side panel, the connecting piece is located on the outside of the shell, the left and right ends of the connecting piece extend to the flange, and the first fastener is detachably inserted into the connecting piece and the flange from the front side.

3. According to the duct air conditioner according to claim 1, the heat exchanger module includes a first fixing frame, a second fixing frame and a water receiving tray, the water receiving tray is arranged on the bottom side of the heat exchanger, the first fixing frame and the second fixing frame are respectively connected to two side plates of the heat exchanger along the left and right directions, and the first fixing frame and the second fixing frame are both connected to the water receiving tray.

4. According to the duct air conditioner of claim 3, the first fixing bracket and the second fixing bracket both include a bracket, the bracket of the first fixing bracket and the bracket of the second fixing bracket are arranged at intervals in the left-right direction and connected to the water receiving tray, and the second fastener is detachably passed through the bracket and the water receiving tray from the front side.

5. The duct air conditioner according to claim 4, wherein the bracket comprises a support rod and a fixing ear, wherein the support rod is located on the top side of the water receiving tray, the fixing ear is bent from the support rod toward the bottom side, the fixing ear is located on the front side of the water receiving tray, and the second fastener is detachably inserted through the fixing ear and the water receiving tray from the front side.

6. The air duct unit according to claim 3, wherein the water receiving tray is formed with a water receiving groove and an upper opening communicated with the water receiving groove, and the bottom of the heat exchanger is inserted into the water receiving groove through the upper opening of the water receiving groove.

7. The air duct unit according to claim 6, wherein both side surfaces of the bottom of the heat exchanger along the left and right directions are sealed with both side surfaces of the water receiving trough along the left and right directions through a first sealing layer.

8. The air duct unit according to claim 1, wherein inner surfaces of the side panels are covered with a thermal insulation layer, and both sides of the heat exchanger module along the left and right directions are tightly pressed against the thermal insulation layer.

9. The duct air conditioner according to claim 1, wherein the heat exchanger module comprises inlet and outlet pipes, and the inlet and outlet pipes are connected to the refrigerant pipe of the heat exchanger to input or output refrigerant, and the shell comprises an end plate and a pressure plate, and the end plate connects the two side plates along the length direction and one end away from the heat exchanger, and the end plate is formed with a pipe through-hole, and the front end of the end plate is formed with a take-in and put-out port connected to the pipe through-hole, and the inlet and outlet pipes can enter the pipe through-hole through the take-in and put-out port, and the periphery of the pressure plate is formed with an open groove, and the pressure plate is detachably connected to the end plate, and the wall of the open groove is located on the side of the wall of the inlet and outlet pipe away from the pipe through-hole to limit the inlet and outlet pipe from entering the take-in and put-out port.

10. The air duct machine according to claim 1, wherein the length direction of the side plate is consistent with the up-down direction, and the housing comprises an end plate having an air outlet, and the end plate connects the upper ends of the two side plates.

11. According to the air duct machine according to claim 10, the casing includes a front cover plate, the front cover plate covers a part of the front opening of the accommodating cavity, the other part of the front opening of the accommodating cavity is a front air inlet, and the connecting member is located below the front cover plate, and the connecting member abuts against the front cover plate.

12. The duct air conditioner according to claim 11, comprises a lower base plate and a shielding plate, the shielding plate is detachably connected to the lower base plate, the lower base plate is connected to the lower ends of the two side plates, the lower base plate is formed with a lower air inlet, and the shielding plate can shield one of the front air inlet and the lower air inlet.

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