Duct type air conditioner, duct type air conditioner mounting structure and air conditioner

Abstract

The utility model provides a duct type air conditioner, a duct type air conditioner mounting structure and an air conditioner. The duct type air conditioner comprises a shell, an air inlet, an air outlet and an air duct communicating with the air inlet and the air outlet. The heat exchanger is arranged in the air duct; the cross-flow fan is arranged in the air duct; the wind pipe machine is installed in the suspended ceiling, the length and the height of the wind pipe machine are set to be smaller than the length and the height of a ventilation opening formed in the suspended ceiling so that the wind pipe machine can be disassembled and assembled through the ventilation opening, and the air return opening and the air outlet can communicate with the ventilation opening. The air pipe machine adopts the cross-flow fan, so that the ultra-thin design of the air pipe machine is favorably realized, and the air pipe machine can be disassembled and assembled through a ventilation opening of a suspended ceiling, so that the air pipe machine is convenient to maintain and replace; and the integrated design of a suspended ceiling air inlet communicated with an air return opening of the ducted air conditioner, a suspended ceiling air outlet communicated with an air outlet of the ducted air conditioner and an access hole used for disassembling, assembling and maintaining the ducted air conditioner is realized on the suspended ceiling.

Description

Technical Field

[0001] The present application relates to but is not limited to the technical field of air conditioners, and specifically refers to a duct machine, a duct machine installation structure, and an air conditioner. Background Art

[0002] At present, ducted air conditioners are installed in the ceiling. To replace ducted air conditioners, the ceiling needs to be broken, which is complicated. The ceiling needs to reserve inspection openings (for repairing ducted air conditioners), ceiling air inlets (connected to the return air outlet of the ducted air conditioner), and ceiling exhaust vents (connected to the air outlet of the ducted air conditioner). There are many openings, which affects the appearance. In addition, installing ducted air conditioners in the bedroom will affect the design and storage of other devices such as cabinets. Utility Model Content

[0003] The present application provides a duct machine, comprising:

[0004] A housing having an air return port, an air outlet, and an air duct connecting the air return port and the air outlet;

[0005] a heat exchanger disposed in the air duct; and

[0006] A crossflow fan is arranged in the air duct;

[0007] The duct unit is configured to be installed in a suspended ceiling, and the length and height of the duct unit are configured to be respectively smaller than the length and height of a vent opened in the suspended ceiling, so that the duct unit can be disassembled and assembled through the vent, and the return air port and the air outlet are configured to be able to communicate with the vent.

[0008] In some exemplary embodiments, the height of the duct machine is no more than 140 mm.

[0009] In some exemplary embodiments, the duct machine further comprises:

[0010] A filter screen is arranged in the air duct and along the gas flow direction in the air duct, the filter screen is located upstream of the heat exchanger and the crossflow fan;

[0011] The shell includes a first side wall, and the first side wall is provided with a disassembly opening for disassembling and assembling the filter screen.

[0012] In some exemplary embodiments, the first side wall is arranged to face the vent, and the first side wall is provided with the air outlet.

[0013] In some exemplary embodiments, the housing further includes a second side wall and a third side wall adjacent to the first side wall and arranged opposite to each other, inner wall surfaces of the second side wall and the third side wall are both provided with a limiting sliding groove, and a first end of the limiting sliding groove extends toward the first side wall;

[0014] The two sides of the filter screen are respectively inserted into the two limiting sliding grooves, and the filter screen is configured to be able to slide along the limiting sliding grooves for disassembly and assembly.

[0015] In some exemplary embodiments, the housing further includes a fourth side wall opposite to the first side wall, and a second end of the limiting slide groove opposite to the first end extends toward the fourth side wall;

[0016] One end of the filter screen away from the first side wall abuts against the fourth side wall.

[0017] In some exemplary embodiments, the disassembly and assembly port is located above the air outlet, the limiting slide groove and the filter are adapted in shape and are both curved, and an end of the filter away from the first side wall is lower than an end of the filter close to the first side wall.

[0018] In some exemplary embodiments, the filter screen is a deformable flexible filter screen.

[0019] In some exemplary embodiments, the filter separates the air duct into a return air chamber and a heat exchange chamber, the heat exchanger and the crossflow fan are both located in the heat exchange chamber, and the return air port is arranged on the cavity wall of the shell for enclosing the return air chamber.

[0020] In some exemplary embodiments, one end of the filter screen close to the first side wall extends out of the disassembly and assembly port and is provided with a stop protrusion, wherein the stop protrusion is located outside the shell and cooperates with the outer wall surface of the first side wall to stop.

[0021] In some exemplary embodiments, the heat exchanger is arranged at an angle, and the upper end of the heat exchanger is inclined toward a side close to or away from the air outlet.

[0022] In some exemplary embodiments, along the gas flow direction in the air duct, the cross-flow fan is located downstream of the heat exchanger and close to the air outlet.

[0023] In some exemplary embodiments, the crossflow blower comprises:

[0024] A crossflow impeller extending along the length direction of the air duct blower; and

[0025] The motor is located on one axial side of the crossflow impeller and connected to the crossflow impeller. The first side wall of the shell provided with the air outlet is also provided with a first maintenance port for maintaining the motor. A first maintenance plate is detachably installed at the first maintenance port.

[0026] In some exemplary embodiments, the duct machine further comprises:

[0027] An electric control box is installed in the shell and is located on a side of the crossflow impeller away from the motor. The first side wall is also provided with a second maintenance port for repairing the electric control box. A second maintenance plate is detachably installed at the second maintenance port.

[0028] In some exemplary embodiments, the housing is provided with a first sliding structure, and the first sliding structure is configured to slideably cooperate with a second sliding structure mounted to the ceiling, so that the duct unit can slide through the vent.

[0029] In some exemplary embodiments, the first sliding structure includes two sliding rails, which are respectively installed on opposite sides of the shell, and the sliding rails include a horizontally placed U-shaped sliding portion and a first fixed portion formed by bending both ends of the sliding portion outward, the sliding portion is configured to slide with the second sliding structure, and the first fixed portion is fixed to the shell.

[0030] In some exemplary embodiments, the duct machine further comprises:

[0031] The piping assembly includes two refrigerant input and output pipes, one end of the two refrigerant input and output pipes are connected to the heat exchanger, and the other ends extend out of the shell and extend along the length direction of the air duct machine.

[0032] An embodiment of the present application also provides an air duct machine installation structure, including a suspended ceiling, in which is provided an installation cavity for installing the air duct machine described in any of the above embodiments, and the suspended ceiling is provided with a ventilation hole, and the length and height of the ventilation hole are respectively set to be larger than the length and height of the air duct machine, so that the air duct machine can be disassembled and assembled through the ventilation hole, and the ventilation hole has a return air area and an air outlet area, the return air area is set to be connected to the return air outlet of the air duct machine, and the air outlet area is set to be connected to the air outlet of the air duct machine.

[0033] In some exemplary embodiments, two return air zones are provided and are respectively located on both sides of the vent in the length direction, and the air outlet zone is located between the two return air zones.

[0034] In some exemplary embodiments, the duct machine installation structure further includes:

[0035] A ventilation grille is detachably mounted at the ventilation opening.

[0036] In some exemplary embodiments, the duct machine installation structure further includes:

[0037] The second sliding structure is installed in the installation cavity and is configured to be able to slide and cooperate with the first sliding structure of the air duct unit so that the air duct unit can pass through the vent.

[0038] In some exemplary embodiments, the second sliding structure includes two guide rail assemblies, the guide rail assembly includes a guide rail and two hangers, one end of the guide rail is close to the vent, and the other end extends away from the vent, and the two ends of the guide rail are respectively fixed to the top of the ceiling through the two hangers.

[0039] In some exemplary embodiments, the guide rail includes a lower support portion and a side limiting portion, the lower support portion is connected to the lower portion of the side limiting portion in an L shape, and the lower support portion is configured to support the first sliding structure from below, and the side limiting portion is configured to limit the side portion of the first sliding structure;

[0040] The two ends of the upper part of the side limiting part are provided with a second fixing part, and the two second fixing parts are respectively fixedly connected to the two suspension rods; the upper part of the side limiting part is provided with an upper limit positioning part located between the two second fixing parts, and the upper limit positioning part is opposite to the lower supporting part and is configured to limit the first sliding structure from above.

[0041] An embodiment of the present application further provides an air conditioner, comprising an outdoor unit and the duct unit described in any one of the above embodiments, wherein the outdoor unit is configured to be connected to the duct unit.

[0042] The duct machine of the embodiment of the present application adopts a crossflow fan to achieve a large air volume to meet the needs of the duct machine, and the crossflow fan has a smaller size and weight, which is conducive to the ultra-thin design of the duct machine. The length of the duct machine in the left-right direction of the embodiment of the present application can be less than the length of the vent opened on the ceiling, and the height of the duct machine in the up-down direction can be less than the height of the vent opened on the ceiling, so that the duct machine can be disassembled and assembled through the vent of the ceiling, so as to repair and replace the duct machine, solving the pain point that the existing duct machine cannot be replaced (replacement requires destroying the ceiling).

[0043] In addition, the vents on the suspended ceiling are not only used for disassembling and installing the duct machine, but can also be connected with the return air port and the air outlet of the duct machine, that is, the suspended ceiling has an integrated design of a suspended ceiling air inlet connected with the return air port of the duct machine, a suspended ceiling exhaust port connected with the air outlet of the duct machine, and an inspection port for disassembling and installing and repairing the duct machine. This reduces the number of openings on the suspended ceiling and makes the interior decoration simpler and more beautiful. When the duct machine is installed in the bedroom, more design room and storage space can be reserved for other devices such as cabinets. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the structure of the duct machine of some embodiments of the present application;

[0045] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of part A;

[0046] Figure 3 This is a schematic diagram of the assembly structure of the duct unit and the ceiling in some embodiments of the present application;

[0047] Figure 4 for Figure 3 An enlarged schematic diagram of the B structure;

[0048] Figure 5 A schematic diagram of the three-dimensional structure of a duct machine and a ventilation grille according to some embodiments of the present application;

[0049] Figure 6 It is a schematic cross-sectional structure diagram of a duct machine and a ventilation grille according to some embodiments of the present application;

[0050] Figure 7 A schematic diagram of the structure of disassembling a duct machine from a ventilating opening of a suspended ceiling in some embodiments of the present application;

[0051] Figure 8 This is a schematic diagram of the disassembly structure of the filter screen of the duct air conditioner in some embodiments of the present application;

[0052] Fig. 9 for Figure 8 An enlarged schematic diagram of the C-section structure.

[0053] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0054] 100-duct machine, 200-ceiling;

[0055] 1-shell, 10-upper end wall, 11-front side wall, 13-right side wall, 14-rear side wall, 15-return air port, 16-air outlet, 17-air duct, 171-return air chamber, 172-heat exchange chamber, 18-disassembly and assembly port, 19-limiting slide groove, 110-first maintenance plate, 111-second maintenance plate; 2-heat exchanger; 3-crossflow fan, 31-crossflow wind wheel; 4-filter, 41-stop convex part; 5-slide rail, 51-sliding part, 52-first fixed part; 71-installation cavity, 72-ventilation port, 721-return air area, 722-air outlet area, 73-ventilation grille; 8-guide rail assembly, 81-guide rail, 811-lower support part, 812-side limiting part, 813-second fixed part, 814-upper limit part, 82-suspender rod. DETAILED DESCRIPTION

[0056] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0057] like Figure 1-Figure 9 As shown, an embodiment of the present application provides a duct fan 100, including a shell 1, a heat exchanger 2 and a cross-flow fan 3.

[0058] The housing 1 has a return air port 15, an air outlet 16, and an air duct 17 connecting the return air port 15 and the air outlet 16; the heat exchanger 2 is arranged in the air duct 17; and the crossflow fan 3 is arranged in the air duct 17. The duct machine 100 is arranged to be installed in the ceiling 200, and the length and height of the duct machine 100 are respectively arranged to be smaller than the length and height of the vent 72 opened in the ceiling 200, so that the duct machine 100 can be disassembled and assembled through the vent 72, and the return air port 15 and the air outlet 16 are arranged to be connected to the vent 72.

[0059] The duct unit 100 of the embodiment of the present application is usually installed in the ceiling 200, and a vent 72 is provided on the ceiling 200, and the vent 72 can be connected with the return air port 15 and the air outlet 16 of the duct unit 100. The duct unit 100 uses a cross-flow fan 3 to drive the indoor air flow, so that the indoor air can pass through the vent 72 of the ceiling 200 and enter the air duct 17 of the duct unit 100 from the return air port 15. After the air in the air duct 17 exchanges heat with the heat exchanger 2, it can be discharged from the duct unit 100 from the air outlet 16 and discharged back into the room through the vent 72 of the ceiling 200.

[0060] Compared with the prior art, in which the duct machine uses a centrifugal fan to drive the air flow, the duct machine 100 of the embodiment of the present application uses a crossflow fan 3 to achieve a large air volume to meet the needs of the duct machine 100, and the crossflow fan 3 has a smaller size and weight, which is conducive to the ultra-thin design of the duct machine 100. The length of the duct machine 100 in the left-right direction of the embodiment of the present application can be less than the length of the vent 72 opened on the ceiling 200, and the height H1 of the duct machine 100 in the up-down direction can be less than the height H2 of the vent 72 opened on the ceiling 200 (such as Figure 3 As shown), the duct machine 100 can be disassembled and assembled through the vent 72 of the ceiling 200, so as to facilitate the maintenance and replacement of the duct machine 100, thereby solving the pain point that the existing duct machine 100 cannot be replaced (replacement requires destroying the ceiling 200).

[0061] In addition, the vent 72 of the suspended ceiling 200 is not only used for disassembling and assembling the duct machine 100, but can also be connected to the return air port 15 and the air outlet 16 of the duct machine 100, that is, the suspended ceiling 200 realizes an integrated design of a suspended ceiling air inlet connected to the return air port 15 of the duct machine 100, a suspended ceiling exhaust port connected to the air outlet 16 of the duct machine 100, and an inspection port for disassembling and assembling and repairing the duct machine 100, so that the number of openings on the suspended ceiling 200 is reduced, the interior decoration is simpler and more beautiful, and when the duct machine 100 is installed in the bedroom, more design room and storage space can be reserved for other devices such as cabinets.

[0062] In some exemplary embodiments, Figure 3 As shown, the height H1 of the duct unit 100 is set to be no greater than 140 mm.

[0063] The height dimension of the vent 72 of the conventional suspended ceiling 200 is 150 mm. The air duct machine 100 of the embodiment of the present application realizes an ultra-thin design by adopting the cross-flow fan 3. The height dimension of the air duct machine 100 can be no more than 140 mm (for example, the height H1 of the air duct machine 100 can be 140 mm), which is smaller than the height H2 of the vent 72 of the suspended ceiling 200. This facilitates the disassembly and assembly of the air duct machine 100 through the vent 72 of the suspended ceiling 200, so as to perform operations such as cleaning and maintenance on the air duct machine 100.

[0064] In some exemplary embodiments, Figure 3 and Figure 6 As shown, the duct fan 100 also includes a filter 4, which is arranged in the air duct 17 and along the gas flow direction in the air duct 17. The filter 4 is located upstream of the heat exchanger 2 and the cross-flow fan 3, so that the air entering the air duct 17 is first filtered by the filter 4 and then flows through the heat exchanger 2 and the cross-flow fan 3, thereby preventing impurities in the air from adhering to the heat exchanger 2 or the cross-flow fan 3 and affecting the operation of the heat exchanger 2 or the cross-flow fan 3.

[0065] In some exemplary embodiments, Figure 3 , Figure 6 , Figure 8 and Fig. 9 As shown, the shell 1 includes a first side wall, and the first side wall of the shell 1 is also provided with a disassembly opening 18 for disassembling and assembling the filter screen 4, so that the filter screen 4 can be disassembled and assembled from the disassembly opening 18, and then the filter screen 4 can be cleaned, replaced, etc.

[0066] The disassembly and assembly port 18 is provided so that when cleaning or replacing the filter 4, there is no need to disassemble the housing 1 of the duct machine 100 (e.g., disassembling the front side wall 11 or the upper end wall 10 of the housing 1), and the filter 4 can be directly pulled out, so that the filter 4 can be easily cleaned and replaced.

[0067] In some exemplary embodiments, Figure 3 , Figure 6 , Figure 8 and Fig. 9 As shown, the first side wall of the housing 1 is arranged to face the vent 72 of the suspended ceiling 200, and the first side wall is provided with an air outlet 16. The first side wall may be the front side wall 11 of the housing 1, and the front side wall 11 of the housing 1 may be provided with the air outlet 16 and the disassembly opening 18 for disassembling and assembling the filter 4, and the front side wall 11 of the housing 1 faces the vent 72 of the suspended ceiling 200, so that the air outlet 16 on the front side wall 11 of the housing 1 is connected with the vent 72 of the suspended ceiling 200 to achieve air outlet; at the same time, it is also convenient to disassemble and assemble the filter 4 through the vent 72 of the suspended ceiling 200 and from the disassembly opening 18 without disassembling the air duct machine 100, which further simplifies the disassembly and assembly operation of the filter 4, and the filter 4 can be easily cleaned and replaced.

[0068] It should be understood that the disassembly port 18 for disassembling the filter screen 4 can be set not only on the front side wall 11 of the shell 1, but also on other positions of the shell 1, such as: the disassembly port 18 can be set on the upper end wall 10 of the shell 1, and can be close to the front of the upper end wall 10.

[0069] In some exemplary embodiments, Figure 3-Figure 4 and Figure 6 As shown, the shell 1 also includes a second side wall and a third side wall adjacent to the first side wall and arranged opposite to each other, the inner wall surfaces of the second side wall and the third side wall are provided with a limiting slide groove 19, and the first end of the limiting slide groove 19 extends toward the first side wall; the two sides of the filter 4 are respectively inserted into the two limiting slide grooves 19, and the filter 4 is configured to be able to slide along the limiting slide grooves 19 for disassembly and assembly.

[0070] In the shell 1, the second side wall and the third side wall are both adjacent to the first side wall, and the second side wall and the third side wall can be arranged opposite to each other. In the case where the first side wall can be the front side wall 11 of the shell 1, the second side wall and the third side wall can be the left side wall and the right side wall 13 of the shell 1, respectively. A limiting slide groove 19 is provided on the inner wall surface of the left side wall and the right side wall 13 of the shell 1, and the left and right ends of the filter 4 can be inserted into the limiting slide groove 19. The limiting slide groove 19 can limit the filter 4 to prevent the filter 4 from being deformed under the action of wind pressure and affecting the filtering effect of the filter 4; the left and right ends of the filter 4 can also slide along the limiting slide groove 19 to facilitate the disassembly and assembly of the filter 4.

[0071] The first end (e.g., front end) of the limiting slide groove 19 extends toward the front side wall 11 of the shell 1, so that the first end of the limiting slide groove 19 is adjacent to the disassembly and assembly port 18 on the front side wall 11 of the shell 1, so that the filter 4 can pass through the disassembly and assembly port 18 and gradually slide into the limiting slide groove 19 from the first end of the limiting slide groove 19 to achieve the installation of the filter 4.

[0072] The filter 4 of the embodiment of the present application adopts a pull-out design. When the filter 4 is cleaned or replaced, there is no need to disassemble the housing 1 of the duct machine 100. It can be directly pulled out or pushed in, so that the filter 4 can be easily cleaned and replaced.

[0073] In some exemplary embodiments, Figure 3 and Figure 6 As shown, the shell 1 also includes a fourth side wall opposite to the first side wall, and the second end of the limiting slide groove 19 opposite to the first end extends toward the fourth side wall; the end of the filter screen 4 away from the first side wall abuts against the fourth side wall.

[0074] In the housing 1, the fourth side wall is arranged opposite to the first side wall. When the first side wall can be the front side wall 11 of the housing 1, the fourth side wall can be the rear side wall 14 of the housing 1. The first end (such as the front end) of the limiting slide 19 extends toward the front side wall 11 of the housing 1, and the second end of the limiting slide 19 can extend toward the rear side wall 14 of the housing 1, that is, the limiting slide 19 as a whole can extend in the front-to-back direction, and the filter 4 as a whole extends in the front-to-back direction under the limiting action of the limiting slide 19. One end (such as the front end) of the filter 4 is close to the front side wall 11 of the housing 1, and one end (such as the rear end) of the filter 4 away from the front side wall 11 of the housing 1 can abut against the rear side wall 14 of the housing 1, and the left and right ends of the filter 4 can be inserted into the limiting slide 19 arranged on the left and right walls 13 of the housing 1, thereby ensuring the filtering effect of the filter 4 and preventing air from passing through the gap between the filter 4 and the housing 1.

[0075] In some exemplary embodiments, Figure 3-Figure 4 , Figure 6 and Figure 8-Figure 9 As shown, the disassembly opening 18 is located above the air outlet 16, the limiting slide groove 19 and the filter 4 are adapted in shape and are both curved, and the end of the filter 4 away from the first side wall is lower than the end of the filter 4 close to the first side wall.

[0076] On the front side wall (first side wall) 11 of the shell 1, the disassembly and assembly port 18 is located above the air outlet 16, the shapes of the limiting slide groove 19 and the filter 4 are adapted to each other and are both curved, and the end of the filter 4 away from the front side wall 11 of the shell 1 (such as the rear end) is lower than the end of the filter 4 close to the front side wall 11 of the shell 1 (such as the front end), which is beneficial to increase the filtering area of ​​the filter 4, improve the filtering efficiency, and reduce the wind resistance of the filter 4.

[0077] In some exemplary embodiments, the filter screen 4 is a deformable flexible filter screen, wherein the filter screen 4 can be made of plastic or other materials, so that the filter screen 4 has a flexible structure and can be deformed as needed, so that the filter screen 4 can slide along the curved limiting slide groove 19 to facilitate the disassembly and assembly of the filter screen 4.

[0078] In some exemplary embodiments, Figure 6 As shown, the filter 4 divides the air duct 17 into a return air chamber 171 and a heat exchange chamber 172 , the heat exchanger 2 and the crossflow fan 3 are both located in the heat exchange chamber 172 , and the return air port 15 is arranged on the cavity wall of the shell 1 for enclosing the return air chamber 171 .

[0079] The filter screen 4 can separate the air duct 17 into a return air chamber 171 and a heat exchange chamber 172, wherein the return air chamber 171 can be located on the upper side of the filter screen 4, and the heat exchange chamber 172 can be located on the lower side of the filter screen 4. The upper end wall 10, the left side wall, the right side wall 13 and the rear side wall 14 of the shell 1 can cooperate with the filter screen 4 to form the return air chamber 171, and the return air port 15 can be arranged on the rear side wall 14 and / or the upper end wall 10 of the shell 1 for enclosing the return air chamber 171. Of course, the return air port 15 can also be opened on the left side wall and / or the right side wall 13 of the shell 1 for enclosing the return air chamber 171, so that the return air port 15 can be connected to the return air chamber 171; the front side wall 11, the left side wall, the right side wall 13 and the lower end wall of the shell 1 can cooperate with the filter screen 4 to form the heat exchange chamber 172, and the air outlet 16 can be arranged on the front side wall 11 of the shell 1, so that the air outlet 16 can be connected to the heat exchange chamber 172.

[0080] In some exemplary embodiments, Figure 4 and Fig. 9 As shown, one end of the filter 4 close to the first side wall (the front side wall 11 of the shell 1) (such as the front end of the filter 4) extends out of the disassembly and assembly port 18, and is provided with a stop protrusion 41, which is located outside the shell 1 and cooperates with the outer wall surface of the first side wall to stop.

[0081] The front end of the filter screen 4 can extend out of the disassembly opening 18 so that the filter screen 4 can be extracted by pulling the front end of the filter screen 4, which is convenient for disassembly and assembly of the filter screen 4; a stop protrusion 41 is provided at the front end of the filter screen 4, and the stop protrusion 41 can cooperate with the outer wall surface stop of the front side wall 11 of the shell 1 to limit the front end of the filter screen 4 and prevent the front end of the filter screen 4 from retracting into the shell 1, which is inconvenient for disassembly and assembly of the filter screen 4.

[0082] In some exemplary embodiments, Figure 3 and Figure 6 As shown, the heat exchanger 2 is tilted, and the upper end of the heat exchanger 2 is tilted toward the side close to the air outlet 16, that is, the upper end of the heat exchanger 2 is closer to the air outlet 16 than the lower end of the heat exchanger 2. Of course, the tilted heat exchanger 2 can also be arranged so that the upper end is tilted toward the side away from the air outlet 16, that is, the upper end of the heat exchanger 2 is farther away from the air outlet 16 than the lower end of the heat exchanger 2.

[0083] When the overall height of the air duct unit 100 remains unchanged, the heat exchanger 2 is tilted, which is beneficial to increase the heat exchange area and heat exchange efficiency of the heat exchanger 2 and improve the cooling or heating effect of the air duct unit 100; or, when the heat exchange area and heat exchange efficiency of the heat exchanger 2 remain unchanged, the heat exchanger 2 is tilted, which is beneficial to reduce the overall height of the heat exchanger 2, thereby reducing the overall height of the air duct unit 100.

[0084] The cross-flow fan 3 is adopted and the heat exchanger 2 is arranged in an inclined manner, which is beneficial to reducing the overall height of the duct air conditioner 100 and realizing an ultra-thin design of the duct air conditioner 100.

[0085] In some exemplary embodiments, Figure 6 As shown, along the gas flow direction in the air duct 17 (such as Figure 6 The crossflow fan 3 is located downstream of the heat exchanger 2 and close to the air outlet 16. The upper end of the inclined heat exchanger 2 can be inclined toward the side close to the crossflow fan 3, or toward the side away from the crossflow fan 3.

[0086] The cross flow fan 3 is located downstream of the heat exchanger 2 and close to the air outlet 16 , so that the cross flow fan 3 can be located in front of the heat exchanger 2 , which is convenient for maintenance of the cross flow fan 3 .

[0087] In some exemplary embodiments, the crossflow fan 3 includes a crossflow fan wheel 31 and a motor. The crossflow fan wheel 31 can extend along the length direction (left-right direction) of the air duct fan 100, that is, the axial direction of the crossflow fan wheel 31 extends along the length direction of the air duct fan 100; the motor can be located on one axial side of the crossflow fan wheel 31 and connected to the crossflow fan wheel 31, so that the motor drives the crossflow fan wheel 31 to rotate, thereby driving the air flow.

[0088] In some exemplary embodiments, the first side wall (e.g., front side wall 11) of the housing 1 having the air outlet 16 is also provided with a first maintenance port for maintaining the motor, and a first maintenance plate 110 (e.g., Figure 1 shown).

[0089] The front side wall 11 of the housing 1 faces the vent 72 of the ceiling 200, so the first maintenance port is arranged on the front side wall 11 of the housing 1, which is convenient for the maintenance of the motor; and the crossflow impeller 31 is close to the air outlet 16 of the front side wall 11 of the housing 1, which is convenient for the maintenance of the crossflow impeller 31. Therefore, the crossflow fan 3 is easy to maintain.

[0090] In some exemplary embodiments, the duct fan 100 further includes an electric control box, which is installed in the housing 1 and located on a side of the crossflow impeller 31 away from the motor. The first side wall of the housing 1 (e.g., the front side wall 11) is further provided with a second maintenance port for maintaining the electric control box, and a second maintenance plate 111 (e.g., a second maintenance plate 112) is detachably installed at the second maintenance port. Figure 1 shown).

[0091] The electric control box and the motor can be located on the left and right sides of the crossflow impeller 31 respectively. The front side wall 11 of the shell 1 faces the ventilation hole 72 of the ceiling 200. Therefore, the second maintenance port is set on the front side wall 11 of the shell 1 to facilitate the maintenance of the electric control box.

[0092] In some exemplary embodiments, the duct air conditioner 100 also includes a piping assembly, which includes two refrigerant input and output pipes, one end of which is connected to the heat exchanger 2, and the other end of which extends out of the shell 1 and extends along the length direction of the duct air conditioner 100.

[0093] The two refrigerant input and output pipes of the piping assembly can extend out of the shell 1 and extend along the length direction (left-right direction) of the duct unit 100, such as: the two refrigerant input and output pipes can pass through the left side plate of the shell 1 and extend out of the shell 1 from the left side, or can pass through the right side plate of the shell 1 and extend out of the shell 1 from the right side. Compared with the two refrigerant input and output pipes passing through the rear side plate of the shell 1 and extending out of the shell 1 from the rear side, the arrangement of the two refrigerant input and output pipes in the embodiment of the present application facilitates the connection of the other ends of the two refrigerant input and output pipes extending out of the shell 1 with the outdoor unit, making the pipe connection operation simple.

[0094] In some exemplary embodiments, Figure 3 , Figure 5 and Figure 6 As shown, a ventilation grille 73 may be provided at the vent 72 of the ceiling 200. By removing the ventilation grille 73, components such as the electric control box, the motor and the crossflow impeller 31 can be repaired and the pipe assembly can be connected, which is simple to operate.

[0095] In some exemplary embodiments, the housing 1 is provided with a first sliding structure, which is configured to slideably cooperate with a second sliding structure mounted to the ceiling 200 so that the duct unit 100 can slide through the vent 72 .

[0096] Through the cooperation of the first sliding structure and the second sliding structure, the duct unit 100 can slide in the ceiling 200, so that part or the whole duct unit 100 can slide out of the ceiling 200 from the vent 72 (such as Figure 7 As shown), it is convenient for the duct machine 100 to be repaired or replaced without destroying the ceiling 200.

[0097] In some exemplary embodiments, Figure 1 and Figure 2 As shown, the first sliding structure includes two slide rails 5, which are respectively installed on opposite sides of the shell 1. The slide rails 5 include a horizontally placed U-shaped sliding portion 51 and a first fixed portion 52 formed by bending both ends of the sliding portion 51 outward. The sliding portion 51 is configured to slide with the second sliding structure, and the first fixed portion 52 is fixed to the shell 1.

[0098] The first sliding structure provided on the housing 1 includes two slide rails 5, and the two slide rails 5 can be installed on opposite sides of the housing 1, such as the two slide rails 5 can be installed on the left and right side walls 13 of the housing 1, respectively. The two ends of the horizontally placed U-shaped sliding portion 51 of the slide rail 5 are bent outward to form a first fixing portion 52, so that the slide rail 5 is in a "J" shape as a whole. The first fixing portion 52 of the slide rail 5 can be fixedly connected to the left and right side walls 13 of the housing 1 to fix the slide rail 5 to the housing 1 (such as: fixedly connected by screws or other means); the horizontally placed U-shaped sliding portion 51 of the slide rail 5 can be slidably matched with the second sliding structure provided on the ceiling 200, so that the air duct machine 100 can slide in or out of the ceiling 200.

[0099] The present application also provides a duct machine installation structure, such as Figure 3 and Figure 5-Figure 7 As shown, it includes a suspended ceiling 200, in which is provided an installation cavity 71 for installing the air duct machine 100 provided by any of the above embodiments, and the suspended ceiling 200 is provided with a ventilation hole 72, and the length and height of the ventilation hole 72 are set to be respectively larger than the length and height of the air duct machine 100, so that the air duct machine 100 can be disassembled and assembled through the ventilation hole 72; and the ventilation hole 72 has a return air area 721 and an air outlet area 722, the return air area 721 is set to be connected with the return air port 15 of the air duct machine 100, and the air outlet area 722 is set to be connected with the air outlet 16 of the air duct machine 100.

[0100] The installation cavity 71 in the ceiling 200 can be used to install the duct machine 100. The vent 72 on the ceiling 200 can have a return air area 721 and an outlet air area 722. The return air area 721 can be connected to the return air port 15 of the duct machine 100, and the outlet air area 722 can be connected to the outlet air port 16 of the duct machine 100, so as to facilitate the return air and outlet air of the duct machine 100, and facilitate the circulation of air between the room and the duct machine 100 (the direction of gas flow is as shown in FIG. Figure 5 and Figure 6 direction indicated by the arrow).

[0101] The length and height of the vent 72 on the ceiling 200 are respectively greater than the length and height of the duct unit 100, so that the duct unit 100 can be disassembled and assembled through the vent 72 of the ceiling 200, so as to facilitate the maintenance and replacement of the duct unit 100. Among them, the height of the vent 72 of the ceiling 200 can be 150 mm, and the height of the duct unit 100 can be 140 mm, which is less than the height of the vent 72.

[0102] The ceiling 200 is provided with a vent 72 to realize the return air, air outlet, maintenance and replacement of the duct unit 100, reducing the number of openings on the ceiling 200, making the interior decoration more simple and beautiful, and when the duct unit 100 is installed in the bedroom, more design room and storage space can be reserved for other devices such as cabinets.

[0103] In some exemplary embodiments, Figure 3 and Figure 5-Figure 6 As shown, the duct machine installation structure also includes a ventilation grille 73, which is detachably mounted at the vent 72. By removing the ventilation grille, as shown in FIG. Figure 7 As shown, it is convenient to repair and replace the air duct machine 100.

[0104] In some exemplary embodiments, Figure 5 As shown, two return air zones 721 may be provided and are respectively located on both sides of the vent 72 in the length direction, and the air outlet zone 722 is located between the two return air zones 721 .

[0105] For the ventilation hole 72 of the suspended ceiling 200, the left and right sides may be the return air area 721, and the middle part may be the outlet air area 722. Therefore, when the air duct machine 100 is working, the indoor air can be returned through the left and right sides of the ventilation hole 72 (i.e., the left and right sides of the ventilation grille 73) and enter the air duct machine 100, and the air in the air duct machine 100 can be discharged through the middle part of the ventilation hole 72 (i.e., the middle part of the ventilation grille 73) and flow back into the room.

[0106] The length of the outlet area 722 along the left-right direction can be approximately equal to the length of the outlet 16 of the duct machine 100 along the left-right direction. The outlet area 722 and the return air area 721 are arranged along the left-right direction, and this arrangement makes it easy to achieve that the length of the vent 72 is greater than the length of the duct machine 100.

[0107] In some exemplary embodiments, Figure 1-Figure 3 As shown, the duct unit installation structure also includes a second sliding structure, which can be installed in the installation cavity 71 and is configured to be able to slide with the first sliding structure of the duct unit 100 so that the duct unit 100 can pass through the vent 72.

[0108] A second sliding structure is designed in the installation cavity 71 of the suspended ceiling 200 , so that the duct unit 100 can slide in and out of the suspended ceiling 200 , which is convenient for cleaning and maintenance of the duct unit 100 .

[0109] In some exemplary embodiments, Figure 1-Figure 3 As shown, the second sliding structure includes two guide rail assemblies 8, and the guide rail assembly 8 includes a guide rail 81 and two suspension rods 82. One end of the guide rail 81 is close to the vent 72, and the other end extends in a direction away from the vent 72, and the two ends of the guide rail 81 are respectively fixed to the top of the ceiling 200 by two suspension rods 82.

[0110] In the second sliding structure, two guide rail assemblies 8 can be arranged in the installation cavity 71 of the ceiling 200, one on the left and one on the right, so that the two guide rail assemblies 8 are slidably matched with the two guide rails 81 arranged on the left and right walls 13 of the shell 1 of the duct machine 100 respectively.

[0111] In the guide rail assembly 8, one end (e.g., the front end) of the guide rail 81 is close to the vent 72, and the other end (e.g., the rear end) extends in a direction away from the vent 72, and both ends of the guide rail 81 are fixed to the top of the ceiling 200 through two suspension rods 82, so that the guide rail 81 is firmly fixed. The slide rail 5 of the duct unit 100 can slide along the guide rail 81 in a direction close to the vent 72 or away from the vent 72, so that the duct unit 100 can slide in and out of the ceiling 200.

[0112] In some exemplary embodiments, Figure 2 As shown, the guide rail 81 includes a lower supporting portion 811 and a side limiting portion 812, the lower supporting portion 811 and the lower portion of the side limiting portion 812 are connected in an L shape, and the lower supporting portion 811 is configured to support the first sliding structure from below, and the side limiting portion 812 is configured to limit the side of the first sliding structure; second fixing portions 813 are provided at both ends of the upper portion of the side limiting portion 812, and the two second fixing portions 813 are respectively fixedly connected to the two suspension rods 82; an upper limit portion 814 is provided at the upper portion of the side limiting portion 812, which is located between the two second fixing portions 813, and the upper limit portion 814 is opposite to the lower supporting portion 811, and is configured to limit the first sliding structure from above.

[0113] The guide rail 81 installed in the ceiling 200 has a lower support portion 811 connected to the lower portion of the side limit portion 812 in an L shape, and an upper limit portion 814 is arranged at the upper portion of the side limit portion 812 and opposite to the lower support portion 811, so that the lower support portion 811, the side limit portion 812 and the upper limit portion 814 can be connected to form a U shape, and the space in the U shape can be used to accommodate the horizontally placed U-shaped sliding portion 51 of the slide rail 5 provided on the duct machine 100. Among them, the lower support portion 811 of the guide rail 81 can support the lower end surface of the horizontally placed U-shaped sliding portion 51, the side limit portion 812 of the guide rail 81 can limit the outer wall surface of the horizontally placed U-shaped sliding portion 51, and the upper limit portion 814 of the guide rail 81 can limit the upper end surface of the horizontally placed U-shaped sliding portion 51. The U-shaped sliding portion 51 of the slide rail 5 disposed on the duct unit 100 can slide along the guide rail 81 in the ceiling 200 , so that the duct unit 100 can slide into or out of the ceiling 200 from the vent 72 .

[0114] An embodiment of the present application further provides an air conditioner, comprising an outdoor unit and the duct unit 100 provided in any one of the above embodiments, wherein the outdoor unit is configured to be connected to the duct unit 100.

[0115] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0116] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0117] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0118] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0119] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0120] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A duct machine, characterized in that: include: A housing having an air return port, an air outlet, and an air duct connecting the air return port and the air outlet; A heat exchanger is arranged in the air duct; and A crossflow fan is arranged in the air duct; The duct unit is configured to be installed in a suspended ceiling, and the length and height of the duct unit are configured to be respectively smaller than the length and height of a vent opened in the suspended ceiling, so that the duct unit can be disassembled and assembled through the vent, and the return air port and the air outlet are configured to be able to communicate with the vent.

2. The air duct machine according to claim 1, characterized in that: The height of the air duct machine is not more than 140 mm.

3. The air duct machine according to claim 1, characterized in that: Also includes: A filter screen is arranged in the air duct and along the gas flow direction in the air duct, the filter screen is located upstream of the heat exchanger and the crossflow fan; The shell includes a first side wall, and the first side wall is provided with a disassembly opening for disassembling and assembling the filter screen.

4. The air duct machine according to claim 3, characterized in that: The first side wall is arranged to face the vent, and the first side wall is provided with the air outlet.

5. The air duct machine according to claim 4, characterized in that: The housing further comprises a second side wall and a third side wall which are adjacent to the first side wall and are arranged opposite to each other, and inner wall surfaces of the second side wall and the third side wall are both provided with a limiting sliding groove, and a first end of the limiting sliding groove extends toward the first side wall; The two sides of the filter screen are respectively inserted into the two limiting sliding grooves, and the filter screen is configured to be able to slide along the limiting sliding grooves for disassembly and assembly.

6. The air duct machine according to claim 5, characterized in that: The housing further comprises a fourth side wall opposite to the first side wall, and a second end of the limiting slide groove opposite to the first end extends toward the fourth side wall; One end of the filter screen away from the first side wall abuts against the fourth side wall.

7. The air duct machine according to claim 6, characterized in that: The disassembly and assembly port is located above the air outlet, the limiting slide groove and the filter are adapted in shape and are both curved, and an end of the filter away from the first side wall is lower than an end of the filter close to the first side wall.

8. The duct machine according to any one of claims 3 to 7, characterized in that: The filter screen is a deformable flexible filter screen.

9. The duct machine according to any one of claims 3 to 7, characterized in that: The filter screen divides the air duct into a return air chamber and a heat exchange chamber. The heat exchanger and the cross-flow fan are both located in the heat exchange chamber. The return air port is arranged on a cavity wall of the shell for enclosing the return air chamber.

10. The duct machine according to any one of claims 3 to 7, characterized in that: One end of the filter screen close to the first side wall extends out of the disassembly and assembly port and is provided with a stop convex portion, the stop convex portion is located outside the shell and stops and cooperates with the outer wall surface of the first side wall.

11. The duct machine according to any one of claims 1 to 7, characterized in that: The heat exchanger is arranged tilted, and the upper end of the heat exchanger is tilted toward a side close to or away from the air outlet.

12. The duct machine according to any one of claims 1 to 7, characterized in that: Along the gas flow direction in the air duct, the cross-flow fan is located downstream of the heat exchanger and close to the air outlet.

13. The air duct machine according to claim 12, characterized in that: The crossflow fan comprises: A crossflow impeller extending along the length direction of the air duct blower; and The motor is located on one axial side of the crossflow impeller and connected to the crossflow impeller. The first side wall of the shell provided with the air outlet is also provided with a first maintenance port for maintaining the motor. A first maintenance plate is detachably installed at the first maintenance port.

14. The air duct machine according to claim 13, characterized in that: Also includes: An electric control box is installed in the shell and is located on a side of the crossflow impeller away from the motor. The first side wall is also provided with a second maintenance port for repairing the electric control box. A second maintenance plate is detachably installed at the second maintenance port.

15. The duct machine according to any one of claims 1 to 7, characterized in that: The housing is provided with a first sliding structure, and the first sliding structure is configured to slideably cooperate with a second sliding structure installed on the ceiling, so that the air duct unit can slide through the vent.

16. The air duct machine according to claim 15, characterized in that: The first sliding structure includes two sliding rails, which are respectively installed on opposite sides of the shell. The sliding rails include a horizontally placed U-shaped sliding portion and a first fixed portion formed by bending both ends of the sliding portion outward. The sliding portion is configured to slide with the second sliding structure, and the first fixed portion is fixed to the shell.

17. The duct machine according to any one of claims 1 to 7, characterized in that: Also includes: The piping assembly includes two refrigerant input and output pipes, one end of the two refrigerant input and output pipes are connected to the heat exchanger, and the other ends extend out of the shell and extend along the length direction of the air duct machine.

18. A duct machine installation structure, characterized in that: It includes a suspended ceiling, in which is provided an installation cavity for installing the air duct machine described in any one of claims 1 to 17, and the suspended ceiling is provided with a ventilation hole, the length and height of the ventilation hole are respectively set to be larger than the length and height of the air duct machine, so that the air duct machine can be disassembled and assembled through the ventilation hole, and the ventilation hole has a return air area and an air outlet area, the return air area is set to be connected with the return air outlet of the air duct machine, and the air outlet area is set to be connected with the air outlet of the air duct machine.

19. The duct machine installation structure according to claim 18, characterized in that: There are two return air zones, which are respectively located on both sides of the vent in the length direction, and the air outlet zone is located between the two return air zones.

20. The duct machine installation structure according to claim 18 or 19, characterized in that: Also includes: A ventilation grille is detachably mounted at the ventilation opening.

21. The duct machine installation structure according to claim 18 or 19, characterized in that: Also includes: The second sliding structure is installed in the installation cavity and is configured to be able to slide and cooperate with the first sliding structure of the air duct unit so that the air duct unit can pass through the vent.

22. The duct machine installation structure according to claim 21, characterized in that: The second sliding structure includes two guide rail assemblies, and the guide rail assembly includes a guide rail and two suspension rods. One end of the guide rail is close to the vent, and the other end extends away from the vent, and the two ends of the guide rail are respectively fixed to the top of the ceiling through the two suspension rods.

23. The duct machine installation structure according to claim 22, characterized in that: The guide rail includes a lower support portion and a side limiting portion, wherein the lower support portion is connected to the lower portion of the side limiting portion in an L shape, and the lower support portion is configured to support the first sliding structure from below, and the side limiting portion is configured to limit the side portion of the first sliding structure; The two ends of the upper part of the side limiting part are provided with a second fixing part, and the two second fixing parts are respectively fixedly connected to the two suspension rods; the upper part of the side limiting part is provided with an upper limit positioning part located between the two second fixing parts, and the upper limit positioning part is opposite to the lower supporting part and is configured to limit the first sliding structure from above.

24. An air conditioner, characterized in that: The invention comprises an outdoor unit and the duct machine according to any one of claims 1 to 17, wherein the outdoor unit is configured to be connected to the duct machine.

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