Duct type air conditioner

Abstract

A duct type air conditioner, comprising a housing (1), a control device (2), a fan (3) and a heat exchange device (4); the housing (1) is provided with an air inlet (1a) and an air outlet (1b), and the control device (2) is arranged in the housing (1); the fan (3) is arranged in the housing (1); the heat exchange device (4) comprises a heat exchanger (41), the heat exchanger (41) being arranged in the housing (1); and the control device (2), the fan (3) and the heat exchanger (41) are sequentially arranged in the top-bottom direction. In the duct type air conditioner, the control device (2), the fan (3) and the heat exchange device (4) are provided in a modular manner in the housing (1) to form a compact layout, such that the structure of the duct type air conditioner is more compact, thus facilitating production-line installation and disassembly and assembly during after-sales maintenance.

Description

A duct machine

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311097022.X and application date on August 28, 2023, and the Chinese patent application with application number 202322325772.X and application date on 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, thereby improving the indoor environment. Ducted air conditioners are typically wall-mounted and are ideal for apartments and multi-residential buildings. Therefore, making ducted air conditioners more compact is a key area of ​​ongoing optimization.

[0005] Summary of the Invention

[0006] In view of this, the embodiments of the present application hope to provide a duct air conditioner with a compact structure.

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

[0008] The housing is formed with an air inlet and an air outlet;

[0009] a control device disposed in the housing;

[0010] a fan, disposed in the housing;

[0011] The heat exchange device includes a heat exchanger, which is arranged in the shell. The control device, the fan and the heat exchanger are arranged in sequence along the upper and lower directions.

[0012] In some embodiments, the duct machine includes a first fastener, the outer shell includes a chassis and a front cover, the chassis forms a accommodating cavity, the front side of the chassis forms a disassembly and assembly port connected to the accommodating cavity, the control device, the fan and the heat exchange device are all assembled into the accommodating cavity through the disassembly and assembly port, the front cover covers at least part of the disassembly and assembly port, and the first fastener is detachably inserted into the front cover and the chassis from the front.

[0013] In some embodiments, the duct air conditioner includes a middle partition, which is arranged in the accommodating cavity to separate the accommodating cavity into an upper cavity and a lower cavity. Part of the control device is arranged in the upper cavity, and the other part of the control device is located in the lower cavity. The fan and the heat exchanger are arranged in the lower cavity.

[0014] In some embodiments, the duct unit includes a second fastener, which is detachably mounted on the control device and the middle partition from the front; and / or,

[0015] The air duct unit includes a third fastener, which is detachably provided from the accommodating cavity along the left-right direction to the control device and the chassis.

[0016] In some embodiments, the air duct dryer includes an electric heating assembly located in the upper cavity, and the electric heating assembly and the control device are arranged in a left-right direction.

[0017] In some embodiments, the duct machine includes a fourth fastener, the electric heating assembly includes a switching device and a heating device that are separate from each other, the switching device is located on the front side of the heating device, and the fourth fastener is detachably inserted into the switching device and the middle partition from the front.

[0018] In some embodiments, the duct unit includes a fifth fastener and a vertical plate disposed above the middle partition plate, and the fifth fastener is detachably inserted through the heating device and the vertical plate from the front side.

[0019] In some embodiments, the duct unit includes a sixth fastener, the heat exchange device includes a connecting piece, the connecting piece is arranged on the top of the heat exchanger, and the sixth fastener is passed through the connecting piece and the chassis from the front side to detachably connect the heat exchanger to the chassis.

[0020] In some embodiments, the duct fan includes a carrier and a seventh fastener, the carrier is arranged on the lower surface of the middle partition, the fan includes a casing and a fixed beam connected to the casing, and the seventh fastener is detachably passed through the fixed beam and the carrier from the front side.

[0021] In some embodiments, the supporting member forms a receiving groove having a front opening, and the fixing beam enters the receiving groove through the front opening of the receiving groove.

[0022] In some embodiments, the ducted air conditioner includes a support member arranged on the lower surface of the middle partition, the support member is located on the rear side of the bearing member, and a slot with a front opening is formed between the support member and the middle partition. The fan includes a plug-in beam connected to the casing, and the plug-in beam is inserted into the slot through the front opening of the slot.

[0023] In some embodiments, the middle partition is formed with a limiting groove opening in the left and right directions, and the fixing beam is inserted into the limiting groove through the opening of the limiting groove in the left and right directions.

[0024] In some embodiments, the heat exchanger is tilted in the front-to-back direction, and the angle between the rear end surface of the heat exchanger and the rear back plate of the housing is no greater than 45°.

[0025] In some embodiments, the axis of the fan extends in a front-to-rear direction.

[0026] In some embodiments, the air outlet is formed on the upper end surface of the housing, and the air inlet is formed on the front end surface of the housing and / or the lower end surface of the housing.

[0027] In some embodiments, at least a portion of one of the side walls of the housing is configured as a removable shielding plate, and the portion where the shielding plate is located becomes a first air outlet after removal. A second air outlet is formed on another side wall of the housing, and the shielding plate can shield at least a portion of one of the first air outlet and the second air outlet, and the other of the first air outlet and the second air outlet is the air inlet.

[0028] The duct air conditioner provided in the embodiment of the present application has a control device, a fan and a heat exchanger arranged in sequence in the up and down directions. With such a design, the control device, the fan and the heat exchanger are modularly arranged in the outer shell, and the layout is compact, making the structure of the duct air conditioner more compact and convenient for production line installation and after-sales maintenance and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic structural diagram of an air duct unit in an embodiment of the present application;

[0030] FIG2 is a schematic diagram of a partial structure of the ducted air conditioner shown in FIG1 , wherein the front cover is not shown;

[0031] FIG3 is a schematic diagram of a partial structure of the ducted air conditioner shown in FIG1 , wherein the switch device and the front cover are not shown;

[0032] FIG4 is a schematic diagram of the structure of the ducted air conditioner shown in FIG1 from another perspective;

[0033] FIG5 is a schematic diagram of the assembly of the fan and the middle partition in one embodiment of the present application;

[0034] FIG6 is a schematic diagram of the assembly of the middle partition in one embodiment of the present application;

[0035] FIG7 is a schematic structural diagram of a chassis, a middle partition plate, and a vertical plate in one embodiment of the present application;

[0036] FIG8 is a schematic structural diagram of a heating device in an embodiment of the present application;

[0037] FIG9 is a schematic structural diagram of an air duct unit in another embodiment of the present application. DETAILED DESCRIPTION

[0038] 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.

[0039] It should be noted that, in the embodiments of the present application, the front refers to the side facing the operator, and the back refers to the direction opposite to the front. Up refers to the direction facing the ceiling, and down refers to the direction opposite to the up. The up and down directions, the left and right directions, and the front and back directions are perpendicular to each other. Exemplarily, the orientations or positional relationships of "up", "down", "left", "right", "front", and "back" are based on the orientations or positional relationships shown in Figures 1 and 3. It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Please refer to Figures 1 to 3. An embodiment of the present application provides a duct air conditioner, which includes a shell 1, a control device 2, a fan 3 and a heat exchange device 4. The shell 1 is formed with an air inlet 1a and an air outlet 1b. The control device 2 is arranged in the shell 1, and the fan 3 is arranged in the shell 1. The heat exchange device 4 includes a heat exchanger 41, which is arranged in the shell 1. The control device 2, the fan 3 and the heat exchanger 41 are arranged in sequence in the up and down directions.

[0041] The impeller of fan 3 drives the indoor airflow through air inlet 1a into housing 1, passing through heat exchanger 41 before exiting the ducted air conditioner through air outlet 1b. Heat exchanger 41 is used to exchange heat between the refrigerant and the airflow to regulate the airflow temperature. Control device 2 is used to control the start and stop of the ducted air conditioner. In other words, control device 2 can be used to control the operation of the entire unit, achieving automated control of the ducted air conditioner.

[0042] 1 to 3 , the control device 2 , the fan 3 , and the heat exchanger 41 are sequentially arranged from top to bottom. In another embodiment, the control device 2 , the fan 3 , and the heat exchanger 41 are sequentially arranged from bottom to top.

[0043] In the duct air conditioner provided in the embodiment of the present application, the control device 2, the fan 3 and the heat exchanger 41 are arranged in sequence in the up and down directions. With such a design, the control device 2, the fan 3 and the heat exchanger 4 are modularly arranged in the outer shell 1, and the layout is compact, making the structure of the duct air conditioner more compact and convenient for production line installation and after-sales maintenance and disassembly.

[0044] 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 an air conditioner in which the rear panel 111 of the housing 1 can be used to secure the air conditioner 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 111 of the housing 1 can be secured to the vertical panel of the closet.

[0045] The heat exchanger 41 is generally plate-shaped. In one embodiment, the heat exchanger 41 includes a coil and two side plates, with the left and right ends of the coil respectively fixed to the two side plates. The side plates are used to fix the coil.

[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 the prior art, ducted air conditioners are typically installed in confined spaces, such as corners or closets. This results in the two side panels 112 of the chassis 11, along the left and right sides, typically facing the wall or closet. If the first fastener 100 were inserted from the left or right side of the chassis 11 and the front cover 12, during after-sales maintenance of the electronic control device, fan 3, and / or heat exchanger 41, insufficient maintenance space would exist, and the wall or panel would hinder the operator's ability to remove the first fastener 100 using tools.

[0048] In one embodiment, referring to Figures 1 and 2 , the ducted air conditioner includes a first fastener 100. The housing 1 includes a chassis 11 and a front cover 12. The chassis 11 defines a receiving cavity 11a. A disassembly opening 11b communicating with the receiving cavity 11a is formed on the front side of the chassis 11. The control device 2, the fan 3, and the heat exchanger 4 are all assembled into the receiving cavity 11a through the disassembly opening 11b. The front cover 12 covers at least a portion of the disassembly opening 11b. The first fastener 100 is detachably inserted through the front cover 12 and the chassis 11 from the front. In other words, the first fastener 100 detachably connects the front cover 12 and the chassis 11. During after-sales maintenance, the operator is located at the front side of the housing 1, where there is ample space. Even if the side panels 112 of the chassis 11 along the left and right sides face a wall or a closet panel, the wall or closet panel will not hinder the operator from removing or installing the first fastener 100 from the front side. This facilitates after-sales disassembly and assembly work and reduces maintenance difficulty.

[0049] In one embodiment, referring to Figures 4 and 7, the chassis 11 includes a back panel 111 and two side panels 112, the two side panels 112 are respectively connected to the left and right ends of the back panel 111 to define a disassembly port 11b and a accommodating cavity 11a, the number of the first fasteners 100 can be multiple, and the two ends of the front cover 12 along the left and right directions are respectively detachably connected to the two side panels 112 through the first fasteners 100.

[0050] The first fastener 100 includes, but is not limited to, a screw or a bolt.

[0051] It should be noted that the term "plurality" includes two and more than two.

[0052] For example, in one embodiment, a flange is formed at the front end of the side panel 112 , and the first fastener 100 is detachably inserted through the front cover 12 and the flange from the front.

[0053] In one embodiment, referring to Figures 2 to 7 , the ducted air conditioner includes a central partition 5 , which is disposed within the accommodating chamber 11a and divides the accommodating chamber 11a into an upper chamber 1aa and a lower chamber 1ab. A portion of the control device 2 is disposed within the upper chamber 1aa, while the remainder of the control device 2 is located within the lower chamber 1ab. The fan 3 and heat exchanger 41 are disposed within the lower chamber 1ab. Specifically, the upper chamber 1aa is located above the lower chamber 1ab. That is, the control device 2, fan 3, and heat exchanger 41 are disposed sequentially from top to bottom. On the one hand, the fan 3 and heat exchanger 41 are disposed within the lower chamber 1ab, lowering the overall center of gravity of the ducted air conditioner and providing a more stable installation. On the other hand, since the lower cavity 1ab needs to place the fan 3 and the heat exchanger 41, the volume of the lower cavity 1ab is relatively large, and the other part of the control device 2 is located in the lower cavity 1ab, which can reduce the size of the upper cavity 1aa along the up and down directions and reduce the length of the chassis 11 along the up and down directions.

[0054] In one embodiment, as shown in Figures 2 and 3 , the ducted air conditioner includes a second fastener 200, which is removably attached to the control device 2 and the middle partition 5 from the front. If the control device 2 needs to be removed for after-sales maintenance, the front cover 12 can be removed first, and then the second fastener 200 can be removed to remove the control device 2. The front side of the housing 1 is open, and walls or closet panels along the left and right sides do not hinder the operator from removing the second fastener 200 from the front, making disassembly and installation easier and more convenient.

[0055] The second fastener 200 includes, but is not limited to, a screw or a bolt.

[0056] The number of the second fastening member 200 may be one or more.

[0057] In one embodiment, referring to Figures 2 and 3 , the ducted air conditioner includes a third fastener 300 detachably extending from the accommodating cavity 11a along the left-right direction to the control device 2 and the chassis 11 . The second fastener 200 enhances the assembly reliability of the control device 2 . Furthermore, the second fastener 200 detachably extends from the interior of the housing 1 along the left-right direction to the control device 2 and the housing 1 , allowing operators to remove and assemble the second fastener 200 from within the housing 1 . The housing 1 has a spacious interior, and even if the housing 1 faces a wall or a closet panel on both sides, the wall or closet panel will not hinder the operator's removal of the second fastener 200 , making disassembly and assembly easier and more convenient. During installation and disassembly for maintenance, the entire control device 2 module can be disassembled in a simple step, eliminating the need to disassemble numerous parts individually, simplifying maintenance procedures.

[0058] Since the duct air conditioner is installed inside a closet, the closet space is narrow and the installation space is limited, and the wall-mounted installation scenario also requires a more compact structural layout. In view of this, in one embodiment, please refer to Figure 2, the duct air conditioner includes an electric heating component 6 located in the upper cavity 1aa, and the electric heating component 6 and the control device 2 are arranged along the left and right directions. With such a design, the space in the upper cavity 1aa can be fully utilized, and the electric heating component 6 and the control device 2 can be reasonably arranged. Arranging the electric heating component 6 and the control device 2 along the left and right can avoid increasing the depth of the chassis 11 along the front-to-back direction, and it is convenient for the operator to directly check the electric heating component 6 and the control device 2 during after-sales maintenance. In this way, the problem of excessive compression of the volume of the shell 1 in the related art, resulting in a complex layout of components without modularization and a relatively chaotic wiring layout, can be avoided.

[0059] In one embodiment, referring to Figures 2 and 3 , the ducted air conditioner includes a fourth fastener 400 , and the electric heating assembly 6 includes a switch device 61 and a heating device 62 . The switch device 61 is located in front of the heating device 62 , and the fourth fastener 400 is removably provided from the front to penetrate the switch device 61 and the middle partition 5 . Because the switch device 61 is typically serviced more frequently than the heating device 62 , the switch device 61 is positioned in front of the heating device 62 , while the fourth fastener 400 is removably provided from the front to penetrate the switch device 61 and the middle partition 5 . This facilitates after-sales maintenance by allowing operators to remove the fourth fastener 400 from the front to disassemble the switch device 61 . This balances space layout with ease of maintenance and assembly / disassembly.

[0060] The heater 62 and switch 61 are separate from each other in that they are not fixedly connected to each other, but are only electrically connected. In other words, the heater 62 and switch 61 can transmit electrical signals wirelessly or via a wired connection such as an electrical connection via electrical wiring, and the heater 62 and switch 61 are not fixed together.

[0061] Fixing into one body includes non-detachable connection and detachable connection to form a rigid module.

[0062] In one embodiment, as shown in Figures 3 and 7 , the ducted air conditioner includes a fifth fastener 500 and a vertical plate 7 positioned above the center partition 5 . The fifth fastener 500 is removably attached to the heating device 62 and the vertical plate 7 from the front. In other words, the heating device 62 is removably connected to the vertical plate 7 via the fifth fastener 500 . If the heating device 62 needs to be removed for after-sales maintenance, the switch device 61 can be removed from the front first, followed by the fifth fastener 500 , thereby removing the heating device 62. This design greatly facilitates after-sales installation and maintenance.

[0063] In one embodiment, referring to Figures 3 and 7 , the vertical plate 7 is located behind the switch device 61 and has a clearance notch 7a formed therein. The heating device 62 includes a fixing plate 621 and a heating element 622. The fixing plate 621 is located in front of the vertical plate 7 and is removably connected to the vertical plate 7 via a fifth fastener 500. The heating element 622 is disposed within the clearance notch 7a. To remove the heating device 62, it can be simply pulled out of the clearance notch 7a from the front. This makes removal simple.

[0064] In one embodiment, referring to Figures 1 to 3, the duct unit includes a sixth fastener 600, and the heat exchange device 4 includes a connector 42. The connector 42 is disposed on the top of the heat exchanger 41, and the sixth fastener 600 is detachably inserted through the connector 42 and the chassis 11 from the front. In this way, the heat exchanger 41 and the chassis 11 are detachably connected by the sixth fastener 600. In the event that the heat exchanger 41 needs to be disassembled for after-sales maintenance, the sixth fastener 600 can be removed from the front using a tool. During installation and removal for maintenance, the entire module of the heat exchange device 4 can be disassembled in a simple step, without the need to disassemble too many parts separately, thereby simplifying the maintenance steps.

[0065] In one embodiment, referring to Figures 1 to 3 , the heat exchange device 4 includes an inlet and outlet pipe 43 , which is connected to the refrigerant pipe of the heat exchanger 41 to input or output refrigerant. The chassis 11 includes an end plate and a pressure plate. The end plate connects the two side plates 112 at one end away from the heat exchanger 41 along the length direction. The end plate is formed with a pipe insertion opening. The front end of the end plate is formed with a take-out port connected to the pipe insertion opening. The inlet and outlet pipes 43 can enter the pipe insertion opening through the take-out port. The periphery of the pressure plate is formed with an open groove. The pressure plate and the end plate are detachably connected. The wall of the open groove is located on the side of the wall of the inlet and outlet pipe 43 away from the pipe insertion opening to restrict the inlet and outlet pipe 43 from entering the take-out port. In other words, the open groove is an open-loop structure that opens toward the periphery.

[0066] For example, if the inlet and outlet pipe 43 needs to be removed, the pressure plate is removed and the inlet and outlet pipe 43 can be taken out from the front through the access opening. If the inlet and outlet pipe 43 needs to be installed, the inlet and outlet pipe 43 can be pushed into the pipe insertion opening from the front through the access opening, and the pressure plate is then fixed to the end plate so that the wall of the open groove is located on the side of the wall of the inlet and outlet pipe 43 away from the pipe insertion opening, thereby restricting the inlet and outlet pipe 43 from entering the access opening.

[0067] Compared with the assembly method in which the inlet and outlet pipes 43 are passed through one side of the end plate in the thickness direction, the present application limits the inlet and outlet pipes 43 by using a pressure plate, which makes it easier to disassemble the inlet and outlet pipes 43 in time during the maintenance of the heat exchanger 41, and the operation is simple and convenient.

[0068] The pressing plate and the end plate can be detachably connected by an eighth fastener. Exemplarily, the eighth fastener is detachably provided on the pressing plate and the end plate from the front side.

[0069] The eighth fastener includes but is not limited to screws or bolts, etc.

[0070] In one embodiment, referring to Figures 2 to 6 , the ducted air conditioner includes a carrier 8 and a seventh fastener. Carrier 8 is disposed on the lower surface of the middle partition 5 . The fan 3 includes a housing 31 and a fixing beam 32 connected to the housing 31 . The seventh fastener is detachably mounted from the front, passing through the fixing beam 32 and the carrier 8 . This allows the fan 3 to be disassembled from the front for easy and convenient removal if it is necessary to disassemble the fan 3 for after-sales maintenance.

[0071] In one embodiment, referring to Figures 2 to 6 , the support member 8 forms a receiving groove 8a having a front opening, and the fixed beam 32 enters the receiving groove 8a through the front opening of the receiving groove 8a. The receiving groove 8a has a front opening, and when the operator is assembling the fan housing 3 to the middle partition 5, the operator is located in front of the middle partition 5 and can observe the front opening of the receiving groove 8a. The operator can easily insert the fixed beam 32 into the receiving groove 8a from the front through the front opening of the receiving groove 8a. The groove wall surface of the receiving groove 8a along the front-to-back direction can restrain the fixed beam 32. Even if the fan housing 3 is heavy, it can be positioned and installed, reducing the difficulty of disassembling and assembling the fan housing 3.

[0072] In one embodiment, the carrier 8 includes a first carrier sheet and a second carrier sheet. The first carrier sheet has a thickness perpendicular to that of the middle partition 5 and is connected to the middle partition 5. The second carrier sheet is bent forward from the end of the first carrier sheet away from the first carrier sheet to define a receiving groove 8a with a front opening. This design simplifies the structure of the carrier 8 and reduces its cost.

[0073] In one embodiment, referring to Figures 2 to 6, the duct unit includes a support member 9 provided on the lower surface of the middle partition 5, the support member 9 is located on the rear side of the bearing member 8, and a slot 9a with a front opening is formed between the support member 9 and the middle partition 5. The fan 3 includes a splice beam 33 connected to the housing 31, and the splice beam 33 is inserted into the slot 9a through the front opening of the slot 9a. For example, when the fan 3 needs to be assembled to the middle partition 5 again after maintenance, the operator can insert the splice beam 33 into the slot 9a from the front side to avoid the situation where the operator cannot observe the slot 9a and the splice beam 33 and cause blind insertion, and the operation is convenient and simple. The support member 9 and the bearing member 8 can bear the force evenly, so that the fan 3 can be hoisted on the middle partition 5 more stably.

[0074] In one embodiment, the support member 9 includes a first support bar and a second support bar. The thickness of the first support bar aligns with the thickness of the middle partition 5 and is connected to the middle partition 5. A portion of the first support bar protrudes toward the side away from the middle partition 5, defining a slot 9a with a front opening between the first support bar and the middle partition 5. The second support bar bends from the front end of the first support bar toward the side away from the middle partition 5. This prevents burrs from forming on the front end of the first support bar, thereby preventing burrs from scratching the operator's hands.

[0075] In one embodiment, referring to Figures 5 and 6, the middle partition 5 is formed with a limit groove 5a that opens in the left and right directions, and the fixed beam 32 is inserted into the limit groove 5a through the opening of the limit groove 5a in the left and right directions. For example, during the assembly process of the fan 3 and the middle partition 5, the fixed beam 32 can be first placed into the accommodating groove 8a from the front side, and then the fan 3 shell is moved in a direction close to the limit groove 5a, so that the fixed beam 32 is inserted into the limit groove 5a through the opening of the limit groove 5a in the left and right directions. In this way, the groove wall surface of the limit groove 5a can limit the fixed beam 32 from escaping from the front side, playing a limiting role. During after-sales maintenance and disassembly, the operator can remove the fan 3 shell from the middle partition 5 without holding the fan 3 shell with his hands, which is convenient to operate.

[0076] In one embodiment, the projection of the fan 3 is spaced apart from the projection of the heat exchanger 41 on a plane perpendicular to the front-to-back direction. This design prevents the heat exchanger 41 from interfering with the removal of the fan 3 during after-sales service when only the fan 3 needs to be disassembled.

[0077] In one embodiment, referring to Figures 1 to 3 , the heat exchange device 4 includes a fixing frame 44 and a water receiving pan 45 . The two fixing frames 44 are respectively connected to the left and right side panels of the heat exchanger 41 , and the fixing frames 44 are connected to the water receiving pan 45 . The water receiving pan 45 is used to receive condensed water from the heat exchanger 41 .

[0078] In one embodiment, referring to FIG. 1 to FIG. 3 , the duct unit includes a ninth fastener 700 . The ninth fastener 700 is detachably mounted on the fixing frame 44 and the water receiving tray 45 from the front.

[0079] In one embodiment, referring to FIG4 , the heat exchanger 41 is tilted in the front-to-back direction. In other words, the heat exchanger 41 is generally plate-shaped. The angle between the rear end surface of the heat exchanger 41 and the vertical surface is an acute angle.

[0080] In one embodiment, referring to Figure 4 , the angle between the rear end surface of the heat exchanger 41 and the rear plate 111 of the housing 1 is no greater than 45°. In other words, the angle between the rear end surface of the heat exchanger 41 and the rear plate 111 of the housing 1 is α, where 0°<α≤45°.

[0081] While ensuring the cooling and heating performance of the ducted air conditioner, it is necessary to coordinate the length of the shell 1 in the vertical direction, the depth in the front-to-back direction, and the width in the left-to-right direction. The heat exchanger 41 has a great influence on the size of the shell 1. If the angle α between the rear end face of the heat exchanger 41 and the back plate 111 of the shell 1 is too small, the length in the vertical direction will increase; if the angle α between the rear end face of the heat exchanger 41 and the back plate 111 of the shell 1 is too large, the depth in the front-to-back direction will increase. Since the ducted air conditioner is placed in a corner or in a closet, the depth in the front-to-back direction has a greater impact than the length in the vertical direction. In view of this, in this application, 0°<α≤45° can ensure that the depth of the shell 1 in the front-to-back direction is as small as possible without excessively increasing the length in the vertical direction; on the other hand, it is convenient for the condensed water of the heat exchanger 41 to flow smoothly into the water receiving tray 45.

[0082] In one embodiment, please refer to Figures 2 to 4. The axis of the fan 3 extends in the front-to-back direction. That is, the axis of rotation of the wind wheel extends in the front-to-back direction. The larger the diameter of the casing 31, the larger the diameter of the wind wheel can be and the greater the air volume of the fan 3. The smaller the diameter of the casing 31, the smaller the diameter of the wind wheel and the smaller the air volume of the fan 3, which will directly affect the performance. However, if the axis of the casing 31 is set in the left-right direction, the diameter of the casing 31 will affect the size of the outer shell 1 in the front-to-back direction, resulting in a deeper depth of the outer shell 1 in the front-to-back direction. Therefore, the axis of the fan 3 extends in the front-to-back direction. In this way, the diameter of the wind wheel and the casing 31 can be large enough without increasing the depth of the outer shell 1 in the front-to-back direction. The depth of the duct fan in the front-to-back direction can be thinner.

[0083] In one embodiment, at least one side surface of the housing 31 along the front-back direction is formed with an air inlet, and a circumferential surface of the housing 31 is formed with an air outlet. In this way, the wind wheel can be a centrifugal wind wheel with a large air volume.

[0084] For example, in one embodiment, referring to FIG5 , the housing 31 may be a volute structure.

[0085] In one embodiment, the middle partition 5 is formed with ventilation holes penetrating the upper and lower end surfaces thereof, the air outlet is connected to the ventilation holes, and the ventilation holes face the air outlet 1b. In this way, the airflow from the air outlet is blown toward the air outlet 1b through the ventilation holes.

[0086] The airflow outlet and the vent are butt-jointed and connected, which means that the cross-sectional area of ​​the airflow outlet is substantially equal to the cross-sectional area of ​​the vent, and the projection of the airflow outlet on the middle partition 5 overlaps with the vent.

[0087] In one embodiment, referring to Figures 1 to 3, the air outlet 1b is formed on the upper end surface of the outer shell 1, and the air inlet 1a is formed on the front end surface of the outer shell 1 and / or the lower end surface of the outer shell 1. For example, the air inlet 1a can be formed only on the front end surface of the outer shell 1. For another example, the air inlet 1a can be formed only on the lower end surface of the outer shell 1. For another example, the air inlet 1a can be formed on both the front end surface of the outer shell 1 and the lower end surface of the outer shell 1. The indoor airflow enters the outer shell 1 through the air inlet 1a, flows through the heat exchanger 41, and then flows out through the air outlet 1b. Exemplarily, after the indoor airflow passes through the filter and the heat exchanger 41, it flows through the air inlet, the air outlet, the vent and the air outlet 1b in sequence.

[0088] In one embodiment, referring to Figures 1 and 7 , at least a portion of one side wall of the housing 1 is configured as a removable shielding plate 101. The portion where the shielding plate 101 is located becomes the first air vent when removed. A second air vent is formed on another side wall of the chassis 11. The shielding plate 101 can shield at least a portion of one of the first and second air vents. The other of the first and second air vents serves as the air inlet 1a. With this design, at least one of the first and second air vents can be selected as the air inlet 1a, depending on the needs.

[0089] For example, the housing 1 may have a hexahedral structure, that is, six sidewalls. In one embodiment, referring to FIG1 , the first air vent may be formed on the front sidewall of the housing 1. For example, if the front cover 12 covers the upper portion of the front opening of the chassis 11, the lower portion of the front opening serves as the first air vent.

[0090] Exemplarily, in one embodiment, the second air outlet may be formed on the lower side wall of the housing 1 .

[0091] For example, in one embodiment, both left-right side surfaces of the heat exchanger 4 are in sealed contact with the left-right inner surface of the housing 1. The front cover 12 is in sealed contact with the connector 42, and the bottom surface of the water tray 45 is in sealed contact with the inner bottom surface of the housing 1. This ensures that the indoor airflow from the air inlet 1a primarily flows through the heat exchanger 41, achieving effective heat exchange. The first air outlet is located below the connector 42. The second air outlet is located in front of the water tray 45.

[0092] 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: A housing formed with an air inlet and an air outlet; A control device, disposed in the housing; A fan is disposed in the housing; The heat exchange device comprises a heat exchanger, wherein the heat exchanger is arranged in the housing, and the control device, the fan and the heat exchanger are arranged in sequence along the up-down direction.

2. The duct air conditioner according to claim 1, comprises a first fastener, the outer shell comprises a chassis and a front cover, the chassis forms a accommodating cavity, the front side of the chassis forms a disassembly and assembly port connected to the accommodating cavity, the control device, the fan and the heat exchange device are all assembled into the accommodating cavity through the disassembly and assembly port, the front cover covers at least a portion of the disassembly and assembly port, and the first fastener is detachably arranged on the front cover and the chassis from the front.

3. The air duct machine according to claim 2 comprises a middle partition, wherein the middle partition is arranged in the accommodating cavity to divide the accommodating cavity into an upper cavity and a lower cavity, part of the control device is arranged in the upper cavity, another part of the control device is located in the lower cavity, and the fan and the heat exchanger are arranged in the lower cavity.

4. The duct air conditioner according to claim 3, comprising a second fastener, wherein the second fastener is detachably provided on the control device and the middle partition plate from the front; and / or, The air duct machine includes a third fastener, and the third fastener is detachably provided from the accommodating cavity along the left-right direction to the control device and the chassis.

5. The air duct dryer according to claim 3, comprising an electric heating assembly located in the upper cavity, wherein the electric heating assembly and the control device are arranged in a left-right direction.

6. The duct air conditioner according to claim 5, comprises a fourth fastener, the electric heating assembly comprises a switch device and a heating device which are separate from each other, the switch device is located on the front side of the heating device, and the fourth fastener is detachably inserted through the switch device and the middle partition from the front.

7. The duct air conditioner according to claim 6, comprises a fifth fastener and a vertical plate arranged above the middle partition plate, and the fifth fastener is detachably inserted through the heating device and the vertical plate from the front side.

8. The duct air conditioner according to claim 2, comprises a sixth fastener, the heat exchange device comprises a connecting piece, the connecting piece is arranged on the top of the heat exchanger, and the sixth fastener is passed through the connecting piece and the chassis from the front side to detachably connect the heat exchanger to the chassis.

9. The duct air conditioner according to claim 3, comprises a bearing member and a seventh fastener, wherein the bearing member is arranged on the lower surface of the middle partition, the fan comprises a casing and a fixing beam connected to the casing, and the seventh fastener is detachably passed through the fixing beam and the bearing member from the front side. 10 . The air duct machine according to claim 9 , wherein the bearing member forms a receiving groove with a front opening, and the fixing beam enters the receiving groove through the front opening of the receiving groove.

11. The duct air conditioner according to claim 9, comprises a support member arranged on the lower surface of the middle partition, the support member is located on the rear side of the bearing member, a slot with a front opening is formed between the support member and the middle partition, and the fan comprises a plug-in beam connected to the casing, the plug-in beam is inserted into the slot through the front opening of the slot.

12. The air duct unit according to claim 9, wherein the middle partition plate is formed with a limiting groove opening in the left and right directions, and the fixing beam is inserted into the limiting groove through the opening of the limiting groove in the left and right directions.

13. The air duct unit according to claim 1, wherein the heat exchanger is tilted along the front-to-back direction, and the angle between the rear end surface of the heat exchanger and the rear back plate of the shell is not greater than 45°. The air duct fan according to claim 1 , wherein the axis of the fan extends in a front-to-rear direction.

15. The air duct machine according to claim 1, wherein the air outlet is formed on the upper end surface of the shell, and the air inlet is formed on the front end surface of the shell and / or the lower end surface of the shell.

16. The duct air conditioner according to claim 1, at least a portion of one of the side walls of the outer shell is configured as a removable shielding plate, the portion where the shielding plate is located becomes a first air outlet after removal, and another side wall of the outer shell is formed with a second air outlet, the shielding plate can shield at least a portion of one of the first air outlet and the second air outlet, and the other of the first air outlet and the second air outlet is the air inlet.

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