Duct type air conditioner

Abstract

The invention relates to the technical field of air conditioning, and provides a duct type air conditioner which comprises a shell, a control device, a fan and a heat exchange device, an air inlet and an air outlet are formed in the shell, and the control device is arranged in the shell; the fan is arranged in the shell; the heat exchange device comprises a heat exchanger arranged in the shell, and the control device, the fan and the heat exchanger are sequentially arranged in the vertical direction. The control device, the fan and the heat exchanger are sequentially arranged in the vertical direction, so that the control device, the fan and the heat exchanger are modularly arranged in the shell, the layout is compact, the structure of the duct type air conditioner is more compact, and production line installation and after-sale maintenance and disassembly are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a duct air conditioner. Background Art

[0002] Duct fans are used to condition indoor air, thus improving the indoor environment. Duct fans are generally wall-mounted and are ideal for apartments and multi-residential buildings. Therefore, how to make the structure of duct fans more compact is a direction of continuous optimization. Summary of the invention

[0003] In view of this, the embodiments of the present application hope to provide a duct machine with a compact structure.

[0004] To achieve the above-mentioned purpose, the embodiment of the present application provides a duct machine, comprising:

[0005] A housing formed with an air inlet and an air outlet;

[0006] A control device, disposed in the housing;

[0007] A fan is disposed in the housing;

[0008] 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.

[0009] 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 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.

[0010] In some embodiments, the air duct machine includes a middle partition, which 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, and 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.

[0011] 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,

[0012] 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.

[0013] 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 the left-right direction.

[0014] In some embodiments, the duct machine includes a fourth fastener, the electric heating assembly includes a switch device and a heating device that 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 into the switch device and the middle partition from the front.

[0015] In some embodiments, the air 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.

[0016] In some embodiments, the air duct machine 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.

[0017] 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.

[0018] 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.

[0019] In some embodiments, the duct machine 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, a slot with a front opening is formed between the support member and the middle partition, and 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.

[0020] In some embodiments, the middle partition is formed with a limiting groove opening in the left-right direction, and the fixing beam is inserted into the limiting groove through the opening of the limiting groove in the left-right direction.

[0021] In some embodiments, 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 no greater than 45°.

[0022] In some embodiments, the axis of the fan extends in a front-to-rear direction.

[0023] In some embodiments, 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.

[0024] In some embodiments, at least a portion of one of the side walls of the shell 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 shell, 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.

[0025] 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 casing with a compact layout, 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

[0026] Figure 1 This is a schematic diagram of the structure of a duct machine in one embodiment of the present application;

[0027] Figure 2 for Figure 1 A schematic diagram of a partial structure of a duct machine is shown, wherein the front cover is not shown;

[0028] Figure 3 for Figure 1 A schematic diagram of a partial structure of a duct machine is shown, wherein a switch device and a front cover are not shown;

[0029] Figure 4 for Figure 1 A schematic diagram of another perspective of the structure of the duct machine shown;

[0030] Figure 5 This is a schematic diagram of the assembly of the fan and the middle partition in one embodiment of the present application;

[0031] Figure 6 This is a schematic diagram of the assembly of the middle partition in one embodiment of the present application;

[0032] Figure 7 This is a schematic diagram of the structure of the chassis, the middle partition and the vertical plate in one embodiment of the present application;

[0033] Figure 8 It is a structural schematic diagram of a heating device in one embodiment of the present application;

[0034] Fig. 9 It is a structural schematic diagram of an air duct machine in another embodiment of the present application.

[0035] Description of Reference Numerals

[0036] Casing 1; air inlet 1a; air outlet 1b; shielding plate 101; chassis 11; accommodating chamber 11a; upper chamber 1aa; lower chamber 1ab; disassembly and assembly port 11b; back plate 111; side plate 112; front cover plate 12; control device 2; fan 3; casing 31; fixed beam 32; plug-in beam 33; heat exchange device 4; heat exchanger 41; connecting member 42; inlet and outlet pipes 43; fixing frame 44; water receiving tray 45; middle partition plate 5; limiting groove 5a; electric heating component 6; switch device 61; heating device 62; fixing plate 621; heating element 622; vertical plate 7; avoidance gap 7a; bearing member 8; accommodating groove 8a; supporting member 9; slot 9a; first fastener 100; second fastener 200; third fastener 300; fourth fastener 400; fifth fastener 500; sixth fastener 600; ninth fastener 700. DETAILED DESCRIPTION

[0037] In the absence of conflict, the embodiments and technical features in the embodiments of the present application may be combined with each other, and the detailed descriptions in the specific implementation methods should be understood as explanations of the purpose of the present application and should not be regarded as improper limitations on the present application.

[0038] 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. The top refers to the direction facing the ceiling, and the bottom refers to the direction opposite to the top. The up-down direction, the left-right direction, and the front-back direction are perpendicular to each other. Exemplarily, the directions or positional relationships of "up", "down", "left", "right", "front", and "back" are based on Figure 1 and Figure 3 The orientation or position relationship shown, 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 limiting the present application. The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] See also 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, and the heat exchanger 41 is arranged in the shell 1. The control device 2, the fan 3 and the heat exchanger 41 are arranged in sequence along the up and down direction.

[0040] The fan 3 has a wind wheel that drives the indoor airflow to enter the housing 1 through the air inlet 1a, and then flows through the heat exchanger 41 and then is discharged from the duct unit through the air outlet 1b. The heat exchanger 41 is used to realize heat exchange between the refrigerant and the airflow to adjust the airflow temperature. The control device 2 is used to control the start and stop of the duct unit. In other words, the control device 2 can be used to control the operation of the entire unit and realize the automatic control of the duct unit.

[0041] For example, in one embodiment, please refer to Figures 1 to 3 , the control device 2, the fan 3 and the heat exchanger 41 are arranged sequentially from top to bottom. In another embodiment, the control device 2, the fan 3 and the heat exchanger 41 are arranged sequentially from bottom to top.

[0042] 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 casing 1, and the layout is compact, which makes the structure of the duct air conditioner more compact and facilitates production line installation and after-sales maintenance and disassembly.

[0043] The duct unit provided in the embodiment of the present application may be a wall-mounted duct unit. A wall-mounted duct unit means that the back plate 111 of the housing 1 can be used to fix the duct unit to a vertical mounting wall. For example, the mounting wall may be a vertical wall or a vertical plate. Taking the installation of the wall-mounted duct unit in a closet as an example, the back plate 111 of the housing 1 may be fixed to the vertical plate of the closet.

[0044] The heat exchanger 41 is generally in a plate-like structure. In one embodiment, the heat exchanger 41 includes a coil and two side plates, and the two ends of the coil along the left and right directions are respectively fixed to the two side plates. The side plates are used to fix the coil.

[0045] Exemplarily, in one embodiment, the coil includes a plurality of straight tubes and a plurality of elbows, and the two ends of the straight tubes in the left and right directions are respectively passed through two side plates, and the ends of each two straight tubes are connected through an elbow, so that the plurality of straight tubes and the plurality of elbows together constitute a continuous pipeline for circulating refrigerant. The side plate may be formed with a plurality of spaced plug holes, and the plug holes are used to pass the straight tubes. The side plate can keep a suitable distance between the plurality of straight tubes, and play a role of fixing and limiting.

[0046] In the related art, ducted air conditioners are usually installed in small spaces, such as corners or closets. This results in the two side panels 112 of the chassis 11 along the left and right directions usually facing the wall or the closet. If the first fastener 100 is inserted from the left or right side of the chassis 11 and the front cover 12 from the outside of the chassis 11, during the after-sales maintenance of the electric control device, the fan 3 and / or the heat exchanger 41, the maintenance space is insufficient, and the wall or the plate will hinder the operator from removing the first fastener 100 with tools.

[0047] In one embodiment, please refer to Figure 1 and Figure 2 The duct machine includes a first fastener 100, the housing 1 includes a chassis 11 and a front cover 12, the chassis 11 is formed with a receiving cavity 11a, and the front side of the chassis 11 is formed with a disassembly port 11b communicating with the receiving cavity 11a, the control device 2, the fan 3 and the heat exchange device 4 are all assembled into the receiving cavity 11a through the disassembly port 11b, the front cover 12 covers at least part of the disassembly port 11b, and the first fastener 100 is detachably arranged on the front cover 12 and the chassis 11 from the front. In other words, the first fastener 100 enables the front cover 12 and the chassis 11 to be detachably connected. During the after-sales maintenance process, the operator is located at the front side of the housing 1, and the front space is open. Even if the side plate 112 of the chassis 11 along the left and right directions faces the wall or the closet plate, the wall or the closet plate will not hinder the operator from disassembling or installing the first fastener 100 from the front side, which is convenient for the operator to disassemble and install after-sales, and reduces the difficulty of maintenance.

[0048] In one embodiment, please refer to Figure 4 and Figure 7 The chassis 11 includes a back panel 111 and two side panels 112. The two side panels 112 are respectively connected to the two ends of the back panel 111 in the left and right directions to define a disassembly port 11b and a receiving cavity 11a. The number of the first fasteners 100 can be multiple. 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.

[0049] The first fastener 100 includes, but is not limited to, a screw or a bolt.

[0050] It should be noted that a plurality includes two and more than two.

[0051] Exemplarily, in one embodiment, a flange is formed at the front end of the side plate 112, and the first fastener 100 is detachably inserted through the front cover plate 12 and the flange from the front.

[0052] In one embodiment, please refer to Figures 2 to 7The duct machine includes a middle partition 5, which is arranged in the accommodating chamber 11a to divide the accommodating chamber 11a into an upper chamber 1aa and a lower chamber 1ab, a part of the control device 2 is arranged in the upper chamber 1aa, another part of the control device 2 is located in the lower chamber 1ab, and the fan 3 and the heat exchanger 41 are arranged in the lower chamber 1ab. Specifically, the upper chamber 1aa is located above the lower chamber 1ab. That is to say, the control device 2, the fan 3 and the heat exchanger 41 are arranged in sequence from top to bottom. On the one hand, the fan 3 and the heat exchanger 41 are arranged in the lower chamber 1ab, the overall center of gravity of the duct machine is lower, and the duct machine is more stable and more stable to install. On the other hand, since the lower chamber 1ab needs to place the fan 3 and the heat exchanger 41, the volume of the lower chamber 1ab is relatively large, and the other part of the control device 2 is located in the lower chamber 1ab, the size of the upper chamber 1aa along the up and down direction can be reduced, and the length of the chassis 11 along the up and down direction can be reduced.

[0053] In one embodiment, please refer to Figure 2 and Figure 3 The duct machine includes a second fastener 200, which is detachably provided on the control device 2 and the middle partition plate 5 from the front. When the control device 2 needs to be disassembled for after-sales maintenance, the front cover plate 12 can be disassembled first, and then the second fastener 200 can be disassembled to disassemble the control device 2. The front side of the housing 1 has a wide space, and the wall or the plate of the closet along the left and right directions will not hinder the operator from disassembling the second fastener 200 from the front side, which is convenient for the operator to disassemble and assemble, and the operation is simple and convenient.

[0054] The second fastener 200 includes, but is not limited to, a screw or a bolt.

[0055] The number of the second fastening member 200 may be one or more.

[0056] In one embodiment, please refer to Figure 2 and Figure 3 The duct machine includes a third fastener 300, which is detachably provided from the accommodating cavity 11a to the control device 2 and the chassis 11 along the left-right direction. On the one hand, the second fastener 200 is used to enhance the assembly reliability of the control device 2; on the other hand, the second fastener 200 is detachably provided from the inside of the housing 1 to the control device 2 and the housing 1 along the left-right direction, and the operator can disassemble and assemble the second fastener 200 from the inside of the housing 1. The internal space of the housing 1 is wide, and even if the two sides of the housing 1 along the left-right direction face the wall or the closet plate, the wall or the closet plate will not hinder the operator from disassembling and assembling the second fastener 200, which is convenient for the operator to disassemble and assemble, and the operation is simple and convenient. When installing and disassembling for maintenance, the control device 2 can be disassembled as a whole module with only simple steps, and there is no need to disassemble too many parts separately, so as to simplify the maintenance steps.

[0057] Since the ducted air conditioner is installed in 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 machine includes an electric heating assembly 6 located in the upper cavity 1aa, and the electric heating assembly 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 assembly 6 and the control device 2 can be reasonably arranged. The electric heating assembly 6 and the control device 2 are arranged along the left and right directions, which can avoid increasing the depth of the chassis 11 along the front-back direction, and facilitate the operator to directly check the electric heating assembly 6 and the control device 2 during after-sales maintenance. In this way, the problem of excessive compression of the volume of the housing 1 in the related art, resulting in a complex layout of components without modularization and a relatively chaotic wiring layout, can be avoided.

[0058] In one embodiment, please refer to Figures 2 to 3 The duct machine 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 at the front side of the heating device 62, and the fourth fastener 400 is detachably provided through the switch device 61 and the middle partition 5 from the front. Since the maintenance frequency of the switch device 61 is usually higher than that of the heating device 62, the switch device 61 is arranged at the front side of the heating device 62, and the fourth fastener 400 is detachably provided through the switch device 61 and the middle partition 5 from the front, so that during the after-sales maintenance process, the operator can remove the fourth fastener 400 from the front side to remove the switch device 61, so that both the space layout and the convenience of maintenance and disassembly can be taken into account.

[0059] The heating device 62 and the switch device 61 are separated from each other, which means that there is no fastening connection between the heating device 62 and the switch device 61, and they are only electrically connected. In other words, the heating device 62 and the switch device 61 can transmit electrical signals wirelessly or in a wired manner such as an electrical connection by electrical wiring, and the heating device 62 and the switch device 61 will not be fixed together.

[0060] Fixing into one body includes non-detachable connection and detachable connection to form a rigid module.

[0061] In one embodiment, please refer to Figure 3 and Figure 7 The duct unit includes a fifth fastener 500 and a vertical plate 7 disposed above the middle partition plate 5. The fifth fastener 500 is detachably disposed on the heating device 62 and the vertical plate 7 from the front side. That is, the heating device 62 is detachably connected to the vertical plate 7 through the fifth fastener 500. In the case where the heating device 62 needs to be disassembled for after-sales maintenance, the switch device 61 can be disassembled from the front side first, and then the fifth fastener 500 can be disassembled to disassemble the heating device 62. Such a design brings greater convenience to after-sales installation and maintenance.

[0062] In one embodiment, please refer to Figure 3 and Figure 7 , the vertical plate 7 is located at the rear side of the switch device 61, and the vertical plate 7 is formed with an avoidance gap 7a. 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 detachably connected to the vertical plate 7 through the fifth fastener 500. The heating element 622 is inserted into the avoidance gap 7a. When the heating device 62 needs to be removed, the heating device 62 can be pulled out of the avoidance gap 7a from the front side, which is simple to operate.

[0063] In one embodiment, please refer to Figures 1 to 3 The duct machine includes a sixth fastener 600, and the heat exchange device 4 includes a connector 42, which is arranged on the top of the heat exchanger 41. The sixth fastener 600 is detachably inserted through the connector 42 and the chassis 11 from the front side. In this way, the heat exchanger 41 and the chassis 11 are detachably connected through the sixth fastener 600. In the case where the heat exchanger 41 needs to be disassembled for after-sales maintenance, the sixth fastener 600 can be disassembled from the front side by tools. When installing and disassembling for maintenance, the heat exchange device 4 can be disassembled as a whole module with only simple steps, and there is no need to disassemble too many parts separately, so as to simplify the maintenance steps.

[0064] In one embodiment, please refer 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 the refrigerant. The chassis 11 includes an end plate and a pressure plate. The end plate connects the two side plates 112 along the length direction away from one end of the heat exchanger 41. The end plate is formed with a pipe insertion port, and the front end of the end plate is formed with a take-in and put-out port connected to the pipe insertion port. The inlet and outlet pipe 43 can enter the pipe insertion port through the take-in and put-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 port to limit the inlet and outlet pipe 43 from entering the take-in and put-out port. In other words, the open groove is an open-loop structure that opens toward the periphery.

[0065] For example, when the inlet and outlet pipe 43 needs to be disassembled, the pressing plate is disassembled, and the inlet and outlet pipe 43 can be taken out from the front side through the access opening. When the inlet and outlet pipe 43 needs to be assembled, the inlet and outlet pipe 43 can be pushed into the pipe insertion opening from the front side through the access opening, and then the pressing plate is fixed to the end plate, so that the wall surface of the opening groove is located on the side of the wall surface of the inlet and outlet pipe 43 away from the pipe insertion opening, so as to restrict the inlet and outlet pipe 43 from entering the access opening.

[0066] Compared with the assembly method in which the inlet and outlet pipes 43 are passed through the end plate from one side in the thickness direction of the end plate, the present application limits the inlet and outlet pipes 43 by means of 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.

[0067] The pressing plate and the end plate can be detachably connected by an eighth fastener. Exemplarily, the eighth fastener is detachably inserted through the pressing plate and the end plate from the front side.

[0068] The eighth fastener includes but is not limited to screws or bolts and the like.

[0069] In one embodiment, please refer to Figures 2 to 6 The duct machine includes a bearing member 8 and a seventh fastener, the bearing member 8 is arranged on the lower surface of the middle partition plate 5, the fan 3 includes a housing 31 and a fixing beam 32 connected to the housing 31, and the seventh fastener is detachably arranged through the fixing beam 32 and the bearing member 8 from the front side. In this way, when the fan 3 needs to be disassembled for after-sales maintenance, the seventh fastener can be disassembled from the front side, which is simple and convenient to operate.

[0070] In one embodiment, please refer to Figures 2 to 6 , the bearing member 8 forms a receiving groove 8a with 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. When the operator assembles the fan 3 shell to the middle partition 5, the operator is located at the front side of the middle partition 5 and can observe the front opening of the receiving groove 8a. The operator can easily pass the fixed beam 32 through the front opening of the receiving groove 8a from the front side into the receiving groove 8a. The groove wall surface of the receiving groove 8a along the front-to-back direction can limit the fixed beam 32. Even if the mass of the fan 3 shell is large, it can be positioned and installed, reducing the difficulty of disassembling and assembling the fan 3 shell.

[0071] In one embodiment, the carrier 8 includes a first carrier sheet and a second carrier sheet, the thickness direction of the first carrier sheet is perpendicular to the thickness direction of the middle partition plate 5 and connected to the middle partition plate 5, and the second carrier sheet is bent forward from one end of the first carrier sheet away from the first carrier sheet to jointly define a receiving groove 8a with a front opening. With such a design, the carrier 8 has a simple structure and low cost.

[0072] In one embodiment, please refer to Figures 2 to 6 The duct machine includes a support member 9 arranged on the lower surface of the middle partition 5, the support member 9 is located at 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 plug-in beam 33 connected to the casing 31, and the plug-in beam 33 is inserted into the slot 9a through the front opening of the slot 9a. Exemplarily, when the fan 3 needs to be assembled to the middle partition 5 again after the maintenance is completed, the operator can insert the plug-in beam 33 into the slot 9a from the front side to avoid the situation where the operator cannot observe the slot 9a and the plug-in beam 33 and cause blind insertion, and the operation is convenient and simple. The support member 9 and the bearing member 8 can be evenly stressed, so that the fan 3 can be hoisted on the middle partition 5 more stably.

[0073] In one embodiment, the support member 9 includes a first support bar and a second support bar, the thickness direction of the first support bar is consistent with the thickness direction of the middle partition 5 and is connected to the middle partition 5, and a portion of the first support bar protrudes toward a side away from the middle partition 5 to define a slot 9a with a front opening between the first support bar and the middle partition 5. The second support bar is bent from the front end of the first support bar toward the side away from the middle partition 5. The first support bar can prevent burrs from being generated at the front end of the first support bar, thereby preventing the burrs from scratching the hands of the operator.

[0074] In one embodiment, please refer to Figures 5 and 6 , the middle partition 5 is formed with a limit groove 5a opening 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. Exemplarily, 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 the 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 hands, which is convenient to operate.

[0075] In one embodiment, the projection plane is perpendicular to the front-rear direction, and the projection of the fan 3 is spaced apart from the projection of the heat exchanger 41. With this design, when only the fan 3 needs to be disassembled after sales, the heat exchanger 41 can be prevented from interfering with the removal of the fan 3.

[0076] In one embodiment, please refer 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 two side plates of the heat exchanger 41 along the left and right directions, 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.

[0077] In one embodiment, please refer to Figures 1 to 3 The air duct machine includes a ninth fastener 700, which is detachably inserted into the fixing frame 44 and the water receiving tray 45 from the front side.

[0078] In one embodiment, please refer to Figure 4 The heat exchanger 41 is tilted in the front-rear direction. That is, the heat exchanger 41 is generally in a plate-like structure. The angle between the rear end surface of the heat exchanger 41 and the vertical surface is an acute angle.

[0079] In one embodiment, please refer to Figure 4 , the angle between the rear end face of the heat exchanger 41 and the rear back plate 111 of the housing 1 is not greater than 45°. In other words, the angle between the rear end face of the heat exchanger 41 and the rear back plate 111 of the housing 1 is α, 0°<α≤45°.

[0080] While ensuring the cooling and heating performance of the duct machine, it is necessary to coordinate the length of the shell 1 in the up-down 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 up-down 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 duct machine is placed in a corner or a closet, the depth in the front-to-back direction has a greater impact than the length in the up-to-down direction. In view of this, in this application, 0°<α≤45°, so that, on the one hand, the depth of the shell 1 in the front-to-back direction can be ensured to be as small as possible without excessively increasing the length in the up-to-down 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.

[0081] 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 to say, the rotation axis 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, and the depth of the duct fan in the front-to-back direction can be thinner.

[0082] In one embodiment, at least one side surface of the housing 31 along the front-rear 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.

[0083] For example, in one embodiment, please refer to Figure 5 , the casing 31 may be a volute structure,

[0084] In one embodiment, the middle partition plate 5 is formed with ventilation holes penetrating the upper and lower end surfaces thereof, the airflow outlet is connected to the ventilation holes, and the ventilation holes face the air outlet 1b, so that the airflow from the airflow outlet is blown toward the air outlet 1b through the ventilation holes.

[0085] The airflow outlet and the vent are butt-jointed and connected, which means that the flow cross-sectional area of ​​the airflow outlet is substantially equal to the flow cross-sectional area of ​​the vent, and the projection of the airflow outlet on the middle partition 5 overlaps with the vent.

[0086] In one embodiment, please refer to Figures 1 to 3, the air outlet 1b is formed on the upper end surface of the shell 1, and the air inlet 1a is formed on the front end surface of the shell 1 and / or the lower end surface of the shell 1. For example, the air inlet 1a can be formed only on the front end surface of the shell 1. For another example, the air inlet 1a can be formed only on the lower end surface of the shell 1. For another example, the air inlet 1a can be formed on both the front end surface of the shell 1 and the lower end surface of the shell 1. The indoor airflow enters the 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 flows through the filter and the heat exchanger 41, it flows through the airflow inlet, the airflow outlet, the vent and the air outlet 1b in sequence.

[0087] In one embodiment, please refer to Figure 1 and Figure 7 At least part of one of the side walls of the housing 1 is configured as a detachable shielding plate 101, and the part where the shielding plate 101 is located is the first air outlet after being removed. The other side wall of the chassis 11 is formed with a second air outlet, and the shielding plate 101 can shield at least part 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 1a. With this design, at least one of the first air outlet and the second air outlet can be selected as the air inlet 1a according to needs.

[0088] For example, the housing 1 may be a hexahedral structure, that is, the housing 1 has six side walls. Figure 1 The first air outlet may be formed on the front side wall of the housing 1. For example, the front cover 12 covers the upper portion of the front opening of the chassis 11, and the lower portion of the front opening is the first air outlet.

[0089] Exemplarily, in one embodiment, the second air outlet may be formed on the lower side wall of the housing 1 .

[0090] For example, in one embodiment, both sides of the heat exchange device 4 along the left and right directions are sealed against the inner surface of the housing 1 along the left and right directions, the front cover plate 12 is sealed against the connecting piece 42, and the bottom surface of the water receiving pan 45 is sealed against the inner bottom surface of the housing 1. In this way, the indoor air flow from the air inlet 1a basically flows through the heat exchanger 41, and the heat exchange effect is good. The first air outlet is located below the connecting piece 42. The second air outlet is located in front of the water receiving pan 45.

[0091] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A duct machine, characterized in that: include: 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 air duct machine according to claim 1, characterized in that: The duct machine includes a first fastener, the shell includes a chassis and a front cover, the chassis forms a accommodating cavity, the front side of the chassis forms a disassembly 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 port, the front cover covers at least a portion of the disassembly 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, characterized in that: The air duct machine includes a middle partition, which 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, 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.

4. The air duct machine according to claim 3, characterized in that: The duct unit includes a second fastener, which is detachably mounted on the control device and the middle partition 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 machine according to claim 3, characterized in that: The air duct machine includes an electric heating component located in the upper cavity, and the electric heating component and the control device are arranged in the left-right direction.

6. The air duct machine according to claim 5, characterized in that: The duct machine includes a fourth fastener, and the electric heating assembly includes a switch device and a heating device that 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 into the switch device and the middle partition from the front.

7. The air duct machine according to claim 6, characterized in that: The duct unit 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 air duct machine according to claim 2, characterized in that: The air duct machine includes a sixth fastener, and the heat exchange device includes a connecting piece, which is arranged on the top of the heat exchanger. 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 air duct machine according to claim 3, characterized in that: The duct machine includes a bearing member and a seventh fastener, the bearing member is arranged on the lower surface of the middle partition, the fan includes 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, characterized in that: 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 air duct machine according to claim 9, characterized in that: The duct machine 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, a slot with a front opening is formed between the support member and the middle partition, and 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.

12. The air duct machine according to claim 9, characterized in that: The middle partition plate is formed with a limiting groove opening in the left-right direction, and the fixing beam is inserted into the limiting groove through the opening of the limiting groove in the left-right direction.

13. The air duct machine according to claim 1, characterized in that: The heat exchanger is arranged 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°.

14. The air duct machine according to claim 1, characterized in that: The axis of the fan extends along the front-rear direction.

15. The air duct machine according to claim 1, characterized in that: 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 air duct machine according to claim 1, characterized in that: At least a portion of one of the side walls of the shell 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 shell, 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.

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