Duct type air conditioner

Abstract

The utility model discloses a ducted air conditioner which comprises a box body, a fan, a fan and a fan, and the box body is provided with an air inlet and an air outlet; an air duct is defined in the air duct shell; the heat exchanger is arranged in the box body; the cross-flow fan is arranged in the air duct, the heat exchanger is close to the air inlet relative to the cross-flow fan, the air duct shell comprises a first shell body and a second shell body, the second shell body is located on the side, close to the air outlet, of the first shell body, and the first shell body is provided with a taking and placing opening communicated with the air duct; the size of the pick-and-place opening is larger than the outer diameter of the cross-flow fan, the first shell and the second shell are detachably connected, and the pick-and-place opening is located in the connecting position of the first shell and the second shell. According to the duct type air conditioner, the air outlet of the box body can serve as an access hole, the cross-flow fan can be exposed by detaching the second shell from the air outlet, the cross-flow fan can be detached in the air outlet direction of the duct type air conditioner, and detaching and maintaining are easier and more convenient.

Description

Technical Field

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

[0002] In the related art, for the sake of aesthetic design, ducted air conditioners are usually installed on the ceiling. When the wind wheel is disassembled and repaired, the air inlet grille at the ceiling return air inlet and the bottom plate of the box need to be disassembled. The disassembly method is relatively complicated and there is room for improvement. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a ducted air conditioner whose cross-flow fan is easy to disassemble.

[0004] According to the embodiment of the present application, the duct machine includes: a box body, the box body has an air inlet and an air outlet; an air duct shell, the air duct shell defines an air duct; a heat exchanger, the heat exchanger is arranged in the box body; a cross-flow fan, the cross-flow fan is arranged in the air duct, the heat exchanger is close to the air inlet relative to the cross-flow fan, the air duct shell includes a first shell and a second shell, the second shell is located on the side of the first shell close to the air outlet, wherein the first shell has a take-in and take-out port connected to the air duct, and the size of the take-in and take-out port is larger than the outer diameter of the cross-flow fan in the up and down direction, the first shell and the second shell are detachably connected, and the take-in and take-out port is located at the connection between the first shell and the second shell.

[0005] According to the duct air conditioner of the embodiment of the present application, the air outlet of the box can be used as an inspection port. By removing the second shell at the air outlet, the cross-flow fan can be exposed through the access port, and then the cross-flow fan can be disassembled along the air outlet direction of the duct air conditioner, making disassembly and maintenance easier.

[0006] In addition, when the duct air conditioner is installed on the ceiling, the air outlet of the duct air conditioner can be directly connected to the return air outlet of the ceiling, that is, the part of the duct air conditioner with the air outlet is in contact with the outer periphery of the return air outlet, or the part of the duct air conditioner with the air outlet is inserted into the return air outlet, thereby eliminating the need for additional flexible connecting pipes, which reduces costs and shortens the space occupied by the duct air conditioner installation; and since the cross-flow fan can be disassembled directly from the air outlet, there is no need to set an inspection port on the lower side of the box, and there is no need to disassemble the air inlet grille at the ceiling return air outlet and the bottom plate of the box, etc., which simplifies the disassembly method and is further conducive to reducing the size of the ceiling, thereby further improving the aesthetics.

[0007] According to the embodiment of the present application, the duct machine includes: a box body, the box body has an air inlet and an air outlet; a duct shell, the duct shell defines an air duct; a heat exchanger, the heat exchanger is arranged in the box body; a cross-flow fan, the cross-flow fan is arranged in the air duct, the heat exchanger is close to the air inlet relative to the cross-flow fan, the duct shell includes a first shell and a second shell, the second shell is located on the side of the first shell close to the air outlet, wherein the first shell and the second shell are detachably connected, and the cross-flow fan is constructed to be able to be taken out from the air outlet after the second shell is separated from the first shell.

[0008] According to the duct air conditioner of the embodiment of the present application, the air outlet of the box can be used as an inspection port. By removing the second shell at the air outlet, the cross-flow fan is exposed, and then the cross-flow fan can be removed along the air outlet direction of the duct air conditioner, making disassembly and maintenance easier.

[0009] In some embodiments, the first shell includes two first mounting members, the two first mounting members are arranged opposite to each other along the axial direction of the cross-flow fan, the first connecting member, the second connecting member, the first connecting member and the second connecting member are respectively connected between the two first mounting members, and the first connecting member and the second connecting member are arranged opposite to each other along the radial direction of the cross-flow fan, and the taking and releasing port is defined between the first connecting member, the second connecting member and the two first mounting members, so that the first shell is composed of four parts, the first shell has a simple structure, and it is convenient to form a taking and releasing port with a larger opening.

[0010] In some embodiments, one of the second shell and the second connecting member has a hook, and the other of the second shell and the second connecting member has a hole, and the hook is engaged with the hole, thereby realizing a detachable connection between the first shell and the second shell, which is convenient to connect and reliable to fit.

[0011] In some embodiments, one of the second shell and the first connecting member has a slot, and the other of the second shell and the first connecting member has an insert block, which is plugged into and fits with the slot, thereby achieving positioning and guiding of the installation of the first shell and the second shell, thereby improving assembly efficiency.

[0012] In some embodiments, the second shell and the mounting member are connected by fasteners, thereby achieving a fastened connection between the second shell and the first shell, further improving the reliability of the connection.

[0013] In some embodiments, the second shell includes two second mounting members, and the two second mounting members are arranged opposite to each other along the axial direction of the cross-flow fan; a third connecting member and a fourth connecting member, and the third connecting member and the fourth connecting member are respectively connected between the two second mounting members, and the third connecting member and the fourth connecting member are arranged opposite to each other along the radial direction of the cross-flow fan, the third connecting member is detachably connected to the first connecting member, and the fourth connecting member is detachably connected to the second connecting member, thereby realizing the detachable connection between the second shell and the first shell.

[0014] In some embodiments, a first guide surface is formed on a side of the third connecting member close to the fourth connecting member, and a plug-in block that is plugged into and matched with the first connecting member is formed on a side of the third connecting member facing away from the fourth connecting member. The first guide surface can guide the airflow to reduce turbulence and pressure loss, thereby improving the efficiency of the duct air conditioner; the plug-in block is plug-fitted into and matched with the first connecting member, thereby realizing the connection between the first shell and the second shell, which is convenient for connection and easy for assembly.

[0015] In some embodiments, the fourth connecting member includes a connecting section and a guide section, the guide section is arranged opposite to the third connecting member and a second guide surface is formed on a side close to the third connecting member, the connecting section is located on a side of the guide section close to the first shell and has a hook that is snap-fitted with the first connecting member, the connecting section is connected to the guide section to form a volute tongue portion, which helps to guide the airflow and reduce turbulence and noise.

[0016] In some embodiments, the second shell further includes reinforcing ribs, which are connected between the third connecting member and the fourth connecting member. By providing the reinforcing ribs, the strength and rigidity of the second shell can be effectively enhanced, the stability of the third connecting member and the fourth connecting member can be improved, and the reliability of the cooperation between the second shell and the first shell can be improved.

[0017] In some embodiments, the second shell is defined by a first connecting port and a second connecting port, the first connecting port is adjacent to the take-in and put-out port, and the second connecting port is adjacent to the air outlet, wherein the reinforcing rib is located at the first connecting port, whereby the air accelerated by the cross-flow fan flows to the air outlet through the take-in and put-out port, the first connecting port, and the second connecting port, thereby realizing air flow. The reinforcing rib is located at the first connecting port, which helps the reinforcing rib provide additional support and strength in this area, thereby improving the strength and stability of the fitting between the first shell and the second shell, and preventing deformation or damage caused by frequent air flow, etc., which affects the reliability of the fitting between the first shell and the second shell.

[0018] In some embodiments, the duct dryer further comprises: a motor, the motor being mounted on one of the first mounting members, the output shaft of the motor extending into the first end of the cross-flow fan and being used to drive the cross-flow fan to rotate, the second end of the cross-flow fan having a rotating shaft, another of the first mounting members being provided with a bearing, the rotating shaft being mounted to the bearing, the motor driving the cross-flow fan to generate airflow, the bearing being able to support the rotating shaft to ensure stable operation of the rotating shaft and the cross-flow fan, reduce friction and wear, and improve the efficiency and life of the duct dryer.

[0019] In some embodiments, the first mounting member provided with the bearing is defined with a mounting slot corresponding to the position of the cross-flow fan, the cross-flow fan can be extended into the mounting slot and the distance between the second end of the cross-flow fan and the bottom wall of the mounting slot is A, the dimension of the output shaft of the motor extending into the first end of the cross-flow fan is B, satisfying: A≥B, when the cross-flow fan is disassembled, the cross-flow fan can be moved to the right a distance until the output shaft of the motor is disengaged from the left end of the cross-flow fan, and then the cross-flow fan can be tilted and taken out through the access port, and the opposite steps of the above can be adopted when installing the cross-flow fan, thereby making the cross-flow fan disengaged from the motor, and the cross-flow fan can be removed separately without disassembling the motor, making disassembly more convenient and improving maintenance efficiency.

[0020] In some embodiments, a portion of the projection of the output shaft of the motor on the plane where the access port is located is located in the access port, and in the axial direction of the cross-flow fan, the length dimension of the portion of the projection of the output shaft of the motor located in the access port is C, C≥10mm, C≤20mm, the output shaft of the motor extends into the cross-flow fan, and is also connected to the cross-flow fan through fasteners, thereby improving the stability of the connection between the motor and the cross-flow fan. In order to facilitate the installation and disassembly of the fasteners, it is necessary to allow the output shaft of the motor to extend into the space corresponding to the access port, that is, a portion of the projection of the output shaft of the motor on the plane where the access port is located is located in the access port. By limiting the length dimension C of the portion of the projection of the output shaft of the motor located in the access port to greater than or equal to 10mm, it is ensured that there is sufficient space for loading and unloading the fasteners. At the same time, by limiting C to less than or equal to 20mm, the output shaft is prevented from being too long, resulting in the output shaft extending into the interior of the cross-flow fan too long, and then a larger gap needs to be added between the first mounting member 13 on the right and the cross-flow fan to ensure that the cross-flow fan can be removed, and the increase in the gap leads to an increase in the size of the entire machine.

[0021] In some embodiments, the duct shell has an duct outlet connected to the air outlet. In the axial direction of the cross-flow fan, the projections of the first end and the second end of the cross-flow fan on the plane where the duct outlet is located are located outside the duct outlet, and the distance between the first end and the second end of the cross-flow fan and the edge of the duct outlet in the axial direction of the cross-flow fan is E. The radial dimension of the cross-flow fan is D, E≥5%D, thereby avoiding the problem of air leakage caused by a gap between the air-guiding part of the cross-flow fan and the duct outlet, and E≤10%D, thereby avoiding the problem of the cross-flow fan being located too much on the periphery of the duct outlet, and the air volume generated by the part located on the periphery of the duct outlet cannot be delivered, resulting in waste of air volume.

[0022] In some embodiments, the radial dimension of the cross-flow fan is D, D≥100mm, thereby avoiding the problem of low efficiency of the cross-flow fan and too small air supply volume of the duct machine, and D≤120mm, thereby avoiding the problem of the cross-flow fan being too large, which in turn causes the size of the entire duct machine to increase.

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 is a schematic diagram of a ducted air conditioner according to an embodiment of the present application at one viewing angle;

[0026] Figure 2 is a schematic diagram of a ducted air conditioner according to an embodiment of the present application from another perspective;

[0027] Figure 3 is a schematic diagram of a ducted air conditioner according to an embodiment of the present application from another perspective;

[0028] Figure 4 It is along Figure 3 Cross-sectional view along line AA;

[0029] Figure 5 It is along Figure 3 Cross-sectional view along the midline BB;

[0030] Figure 6 yes Figure 5 The middle circle shows an enlarged view of point C;

[0031] Figure 7 yes Figure 5 The middle circle shows the enlarged view of point D;

[0032] Figure 8is a schematic diagram of an air duct housing according to an embodiment of the present application at one viewing angle;

[0033] Figure 9 is a schematic diagram of the air duct housing according to an embodiment of the present application from another perspective;

[0034] Figure 10 It is along Figure 10 Cross-sectional view along line EE;

[0035] Figure 11 It is along Figure 10 Cross-sectional view along the midline FF;

[0036] Figure 12 is a schematic diagram of a first housing according to an embodiment of the present application;

[0037] Figure 13 yes Figure 12 The middle circle shows the enlarged view of G;

[0038] Figure 14 is a schematic diagram of a second housing at one viewing angle according to an embodiment of the present application;

[0039] Figure 15 yes Figure 14 The middle circle shows the enlarged view of point H;

[0040] Figure 16 This is a schematic diagram of the second shell according to an embodiment of the present application at another viewing angle.

[0041] Reference numerals:

[0042] Duct machine 1000,

[0043] Air duct shell 100, air duct 1001,

[0044] First housing 10, access opening 101, first connecting member 11, slot 111, second connecting member 12, latch hole 121, first mounting member 13, first connecting hole 131, mounting groove 132,

[0045] Second housing 20, first communication port 201, second communication port 202, third connecting member 21, insert block 211, first guide surface 212, fourth connecting member 22, connecting section 2201, guide section 2202, hook 221, second guide surface 222, second mounting member 23, second connecting hole 24, reinforcing rib 25,

[0046] Heat exchanger 200, cross-flow fan 300, rotating shaft 301,

[0047] Motor 400 , output shaft 401 , housing 500 , air inlet 501 , air outlet 502 . DETAILED DESCRIPTION

[0048] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0049] 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", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0051] Reference below Figures 1-16 The air duct unit 1000 according to an embodiment of the present application is described. The air duct unit 1000 includes: a box body 500, an air duct shell 100, a heat exchanger 200 and a cross-flow fan 300.

[0052] Specifically, the box body 500 is the main part of the duct machine 1000, which is used to accommodate other components. The box body 500 can be installed on the indoor ceiling by hanging. The box body 500 has an air inlet 501 and an air outlet 502 for the entry and exit of air. The air duct shell 100 defines the air duct 1001, and the air duct 1001 is a channel for air flow. The heat exchanger 200 is installed inside the box body 500 for adjusting the temperature of the air. The air duct 1001 has an air duct inlet. The heat exchanger 200 can be arranged between the air inlet 501 and the air duct inlet. The cross-flow fan 300 is installed in the air duct 1001 and promotes the air flow by rotation, so that the air entering from the air inlet 501 flows out through the air outlet 502 after heat exchange in the heat exchanger 200.

[0053] The ceiling is also provided with a return air vent and an air supply vent. An air inlet grille is provided at the return air vent. Indoor air enters the box from the air inlet grille (return air vent) and enters the box 500 from the air inlet 501 of the box 500. After being cooled / heated by the heat exchanger 200, the cold / hot air is blown out of the box 500 by the cross-flow fan 300 and sent into the room through the air supply vent.

[0054] Through the coordinated operation of the above components, the duct unit 1000 can inhale air, adjust the temperature through the heat exchanger 200, and then send the processed air out through the cross-flow fan 300, thereby achieving the air conditioning function.

[0055] like Figures 1-16 As shown, according to an embodiment of the present application, a duct machine 1000, a cross-flow fan 300 is arranged in the air duct 1001, the heat exchanger 200 is close to the air inlet 501 relative to the cross-flow fan 300, and the air duct shell 100 includes a first shell 10 and a second shell 20, and the second shell 20 is located on the side of the first shell 10 close to the air outlet 502, wherein the first shell 10 has a take-in and take-out port 101, which is connected to the air duct 1001, and the first shell 10 and the second shell 20 are detachably connected, and the take-in and take-out port 101 is located at the connection between the first shell 10 and the second shell 20.

[0056] In the up-down direction, the size of the access opening 101 is larger than the outer diameter of the cross-flow fan 300. Specifically, the size of the access opening 101 is the size of the connection between the first shell 10 and the second shell 20. For example, in the up-down direction, the connection between the first shell 10 and the second shell 20 has an upper boundary and a lower boundary. The minimum distance between the upper boundary and the lower boundary is the size of the access opening 101. The up-down direction here can be a vertical direction or a direction inclined to the vertical plane, depending on the position of the upper boundary and the lower boundary.

[0057] By limiting the size of the access opening 101 to be larger than the outer diameter of the crossflow impeller 300, the crossflow fan 300 can be removed from the access opening 101. In other words, the duct air conditioner 1000 uses the crossflow fan 300, and the crossflow fan 300 is close to the air outlet 502. The air duct housing 100 is designed as two detachable shells. By separating the second shell 20 from the first shell 10, the crossflow fan 300 can be removed from the access opening 101. Since the second shell 20 is close to the air outlet 502, and the heat exchanger 200 is relatively close to the air inlet 501, the crossflow fan 300 is relatively close to the air outlet 502. The air outlet 502 can be used as an inspection port. By removing the second shell 20 at the air outlet 502, the access opening 101 can be exposed, and the crossflow fan 300 can be removed. The heat exchanger 200 will not block the removal of the crossflow fan 300, making the entire disassembly and maintenance more convenient.

[0058] According to the duct air conditioner 1000 of the embodiment of the present application, the air outlet 502 of the box body 500 can be used as an inspection port. By removing the second shell 20 at the air outlet 502, the access port 101 can expose the cross-flow fan 300, and then the cross-flow fan 300 can be disassembled along the air outlet direction of the duct air conditioner 1000, making disassembly and maintenance easier.

[0059] In addition, when the duct machine 1000 is installed on the ceiling, the air outlet 502 of the duct machine 1000 can be directly connected to the return air outlet of the ceiling, that is, the part of the duct machine 1000 with the air outlet 502 is in contact with the outer periphery of the return air outlet, or the part of the duct machine 1000 with the air outlet 502 is inserted into the return air outlet, thereby eliminating the need for additional flexible connecting pipes, which reduces costs and shortens the space occupied by the installation of the duct machine 1000; and since the cross-flow fan 500 can be directly disassembled from the air outlet 502, there is no need to set an inspection port on the lower side of the box body 500, and there is no need to disassemble the air inlet grille at the return air outlet of the ceiling and the bottom plate of the box body, etc., which simplifies the disassembly method and further helps to reduce the size of the ceiling, thereby further improving the aesthetics.

[0060] According to some embodiments of the present application, the air duct unit 1000 includes: a box body 500, an air duct shell 100, a heat exchanger 200 and a cross-flow fan 300.

[0061] The box body 500 has an air inlet 501 and an air outlet 502; the air duct shell 100 defines an air duct 1001; the heat exchanger 200 is arranged in the box body 500; the cross-flow fan 300 is arranged in the air duct 1001, and the heat exchanger 200 is close to the air inlet 501 relative to the cross-flow fan 300. The air duct shell 100 includes a first shell 10 and a second shell 20, and the second shell 20 is located on the side of the first shell 10 close to the air outlet 502.

[0062] The first housing 10 and the second housing 20 are detachably connected, and the cross-flow fan 300 is configured to be taken out from the air outlet 502 after the second housing 20 is separated from the first housing 10 .

[0063] Therefore, the air outlet 502 of the box body 500 can be used as an inspection port. By removing the second shell 20 at the air outlet 502, the cross-flow fan 300 can be exposed, and then the cross-flow fan 300 can be removed along the air outlet direction of the duct machine 1000, making disassembly and maintenance easier.

[0064] like Figure 1 and Figure 2 As shown, in some embodiments, the air inlet 501 and the air outlet 502 are located on opposite sides of the box body 500 (eg Figure 1 The front and rear sides are shown in the figure), thereby forming a straight air flow path, which helps to reduce the resistance of air flow and improve the efficiency of air flow. Moreover, the heat exchanger 200 and the cross-flow fan 300 are arranged in sequence along the front-to-back direction, which not only facilitates the removal of the cross-flow fan 300 from the air outlet 502, but also helps to reduce the size of the box body 500 in the front-to-back direction.

[0065] like Figure 12 and Figure 13 As shown, in some embodiments, the first housing 10 includes a first connecting member 11, a second connecting member 12 and two first mounting members 13, and the two first mounting members 13 are arranged along the axial direction of the cross-flow fan 300 (such as Figure 12 The left and right directions shown in the figure are arranged relative to each other, and the two first mounting members 13 can be used to install components of the duct machine 1000, such as the cross-flow separator 300, the motor 500 or the bearing, etc. The first connecting member 11 and the second connecting member 12 are respectively connected between the two first mounting members 13, and the first connecting member 11 and the second connecting member 12 are arranged relative to each other along the radial direction of the cross-flow fan 300, so that the middle part of the first shell 10 can define a part of the air duct 1001, and a take-in and put-out port 101 is defined between the first connecting member 11, the second connecting member 12 and the two first mounting members 13, so that the first shell 10 is composed of four parts. The first shell 10 has a simple structure and is convenient for forming a take-in and put-out port 101 with a larger opening.

[0066] like Figures 8-11 As shown, in some embodiments, the second shell 20 has a hook 221, and the second connecting member 12 has a hole 121. The hook 221 is engaged with the hole 121, thereby realizing a detachable connection between the first shell 10 and the second shell 20, which is convenient to connect and reliable to fit.

[0067] like Figures 8-11As shown, in some embodiments, the second shell 20 has a slot 111, the first connecting member 11 has an insert block 211, or the first connecting member 11 has a slot 111, the second shell 20 has an insert block 211, and the insert block 211 is plugged into the slot 111, thereby achieving positioning and guiding of the installation of the first shell 10 and the second shell 20, thereby improving assembly efficiency.

[0068] It should be noted that if Figure 11 As shown, the second connecting member 12 is located below the first connecting member 11, so that the second shell 20 is clamped with the lower part of the first shell 10 and plugged into the upper part of the first shell 10; of course, the second connecting member 12 can also be located above the first connecting member 11, so that the second shell 20 is clamped with the upper part of the first shell 10 and plugged into the lower part of the first shell 10.

[0069] like Figure 13 and Figure 15 As shown, in some examples, the first mounting member 13 has a first connecting hole 131, and the second shell 20 has a second connecting hole 24. The second connecting hole 24 and the first mounting member 13 are penetrated by fasteners to achieve a fastened connection between the second shell 20 and the first shell 10, further improving the reliability of the connection.

[0070] By connecting the second shell 20 to different parts of the first shell 10, the stability of the second shell 20 and the first shell 10 after assembly can be improved, and the stability and internal continuity of the air duct shell 100 can be improved, thereby ensuring the wind guiding effect.

[0071] like Figure 14-16 As shown, in some embodiments, the second shell 20 includes a third connecting member 21, a fourth connecting member 22 and two second mounting members 23, the two second mounting members 23 are arranged opposite to each other along the axial direction of the cross-flow fan 300, the third connecting member 21 and the fourth connecting member 22 are respectively connected between the two second mounting members 23, and the third connecting member 21 and the fourth connecting member 22 are arranged opposite to each other along the radial direction of the cross-flow fan 300, so that the middle part of the second shell 20 can also define a part of the air duct 1001, the third connecting member 21 is detachably connected to the first connecting member 11, and the fourth connecting member 22 is detachably connected to the second connecting member 12, thereby realizing the detachable connection between the second shell 20 and the first shell 10.

[0072] like Figure 11 and Figure 14As shown, in some embodiments, a first guide surface 212 is formed on the side of the third connecting member 21 close to the fourth connecting member 22. The first guide surface 212 can guide the airflow to reduce turbulence and pressure loss, thereby improving the efficiency of the duct air conditioner; the side of the fourth connecting member 22 facing away from the fourth connecting member 22 has an insert block 211, and the insert block 211 is plugged into and matched with the first connecting member 11, thereby realizing the connection between the first shell 20 and the second shell 10, which is convenient for connection and easy for assembly and disassembly.

[0073] The upper surface of the insert block 211 may abut against the inner surface of the first connector 11 to improve the stability of the first shell 10 and the second shell 20 after being matched and reduce structural shaking.

[0074] like Figure 11 and Figure 15 As shown, in some embodiments, the fourth connecting member 22 includes a connecting section 2201 and a guide section 2202. The guide section 2202 is arranged opposite to the third connecting member 21, and a second guide surface 222 is formed on the side of the guide section 2202 close to the third connecting member 21. The second guide surface 222 can guide the airflow to reduce turbulence and pressure loss, thereby improving the efficiency of the duct machine; the first guide surface 212 and the second guide surface 222 cooperate to form a diffusion section of the air duct, thereby improving the air supply effect; the connecting section 2201 is located on the side of the guide section 2202 close to the first shell 10, and the connecting section 2201 and the guide section 2202 are connected to form a volute tongue portion, which helps to guide the airflow and reduce turbulence and noise.

[0075] The connecting section 2201 has a hook 221, which is engaged with the first connecting member 11, thereby achieving the connection between the fourth connecting member 22 and the first shell 10, which is convenient for connection and easy assembly and disassembly.

[0076] like Figure 14 and Figure 16 As shown, in some embodiments, the second shell 20 also includes a reinforcing rib 25, which is connected between the third connecting member 21 and the fourth connecting member 22. By providing the reinforcing rib, the strength and rigidity of the second shell 20 can be effectively enhanced, and the stability of the third connecting member 21 and the fourth connecting member 22 can be improved, thereby improving the reliability of the cooperation between the second shell 20 and the first shell 10.

[0077] like Figure 10 and Figure 14 As shown, in some embodiments, the second shell 20 is defined by a first connecting port 201 and a second connecting port 202, the first connecting port 201 is adjacent to the take-in and put-out port 101, and the second connecting port 202 is adjacent to the air outlet 502, so that the air accelerated by the cross-flow fan 300 flows through the take-in and put-out port 101, the first connecting port 201, and the second connecting port 202 to the air outlet 502, thereby realizing air flow.

[0078] Among them, the reinforcing rib 25 is located at the first connecting port 201, which helps the reinforcing rib 25 to provide additional support and strength in this area, improve the strength and stability of the fitting between the first shell 10 and the second shell 20, and prevent deformation or damage caused by frequent air flow, etc., which affects the reliability of the fitting between the first shell 10 and the second shell 20.

[0079] like Figure 5-Figure 7 As shown, in some embodiments, the duct machine 1000 further includes a motor 400, which is mounted on the first mounting member 13 on the left side, and the output shaft 401 of the motor 400 extends into the first end of the cross-flow fan 300 (such as Figure 5 In the left end as shown, the motor 400 drives the cross-flow fan 300, thereby generating airflow.

[0080] The second end of the cross flow fan 300 (eg Figure 5 The right end of the fan 1000 is shown in FIG1 , and a bearing is provided on the first mounting member 13 on the right side. The rotating shaft 301 is mounted to the bearing. The bearing can support the rotating shaft 301 to ensure the stable operation of the rotating shaft 301 and the cross-flow fan 300, reduce friction and wear, and improve the efficiency and life of the duct machine 1000.

[0081] Among them, the bearing can be installed on the side of the first mounting member 13 close to the cross-flow fan 300, or it can be installed on the side of the first mounting member 13 away from the cross-flow fan 300. For example, a mounting seat is also provided on the outside of the first shell 10, and the bearing is located in the mounting seat. The mounting seat is detachably connected to the first mounting member 13 on the right, so that the bearing is arranged on the first mounting member 13 on the right.

[0082] like Figure 7 As shown, in some embodiments, the first mounting member 13 on the right side defines a mounting slot 132 corresponding to the position of the cross-flow fan 300, the cross-flow fan 300 can be inserted into the mounting slot 132, and the distance between the second end of the cross-flow fan 300 and the bottom wall of the mounting slot 132 is A, and the dimension of the output shaft 401 of the motor 400 extending into the first end of the cross-flow fan 300 is B, satisfying: A ≥ B, thus, as shown in FIG. Figure 5 As shown, when the cross-flow fan 300 is disassembled, the cross-flow fan 300 can be moved to the right a distance until the output shaft 401 of the motor 400 is disengaged from the left end of the cross-flow fan 300, and then the cross-flow fan 300 can be tilted and taken out through the access port 101. When installing the cross-flow fan 300, the opposite steps to the above can be used.

[0083] By limiting A to be greater than or equal to B, the cross-flow fan 300 can be disassembled from the motor 400 after being disengaged, without disassembling the motor 400, making disassembly more convenient and improving maintenance efficiency.

[0084] like Figure 6 As shown, in some embodiments, the output shaft 401 of the motor 400 extends into the cross-flow fan 300 and is also connected to the cross-flow fan 300 by fasteners, thereby improving the stability of the connection between the motor 400 and the cross-flow fan 300. In order to facilitate the installation and removal of the fasteners, it is necessary to allow the output shaft 401 of the motor 400 to extend into the space corresponding to the access opening 101, that is, a portion of the projection of the output shaft 401 of the motor 400 on the plane where the access opening 101 is located is located in the access opening 101. Specifically, in the axial direction of the cross-flow fan 300 (such as Figure 6 In the left and right directions shown in FIG, the length dimension of the projection of the output shaft 401 of the motor 400 located in the take-and-put port 101 is C, C ≥ 10 mm, thereby ensuring that there is enough space for loading and unloading the fasteners.

[0085] In addition, C≤20mm, thereby preventing the output shaft 401 from being too long, resulting in the output shaft 401 extending too long into the interior of the cross-flow fan 300, and thus requiring a larger gap between the first mounting member 13 on the right and the cross-flow fan 300 to ensure that the cross-flow fan 300 can be removed. The increase in the gap leads to an increase in the size of the entire machine.

[0086] In some examples, C may be 15 mm, which can facilitate the installation and removal of the fastener and prevent the output shaft 401 from being too long, making the overall structure more reasonable and compact.

[0087] like Figure 6 and Figure 7 As shown, in some embodiments, the air duct housing 100 has an air duct outlet connected to the air outlet 502, where the air duct outlet can be the second communication port 202 on the second housing 20, in the axial direction of the cross-flow fan 300 (such as Figure 6 In the left and right directions shown in the figure, the projections of the first and second ends of the cross-flow fan 300 on the plane where the air duct outlet is located are located outside the air duct outlet, and in the axial direction of the cross-flow fan 300, the distance between the first end of the cross-flow fan 300 and the edge of the air duct outlet is E, and the radial dimension of the cross-flow fan 300 is D, E≥5%D, thereby avoiding the problem of air leakage caused by a gap between the air-guiding part of the cross-flow fan 300 and the air duct outlet. Correspondingly, the distance between the second end of the cross-flow fan 300 and the edge of the air duct outlet is E, E≥5%D, wherein the distance between the first end of the cross-flow fan 300 and the edge of the air duct outlet and the distance between the second end of the cross-flow fan 300 and the edge of the air duct outlet both meet the above range, and the two distances can be the same or different.

[0088] In addition, E≤10%D, thereby preventing the cross-flow fan 300 from being excessively located at the periphery of the air duct outlet. The air generated by the portion located at the periphery of the air duct outlet cannot be delivered, resulting in a waste of air volume.

[0089] In some examples, E can be 7% D, which can avoid a gap between the air-guiding portion of the cross-flow fan 300 and the air duct outlet, causing air leakage, and can also avoid excessive portion of the cross-flow fan 300 being located outside the air duct outlet, avoiding waste of air volume.

[0090] In some embodiments, the radial dimension of the cross-flow fan 300 is D, where D is ≥ 100 mm, thereby avoiding the problem of low efficiency of the cross-flow fan 300 and the problem of too small air supply volume of the duct air conditioner 1000.

[0091] In addition, D≤120 mm, thereby preventing the cross-flow fan 300 from being too large, thereby preventing the size of the duct air conditioner 1000 from being increased.

[0092] In some examples, D is 110 mm, which can avoid the problem of low efficiency of the cross-flow fan 300 and too small air supply volume of the duct air conditioner 1000; it can also avoid the cross-flow fan 300 being too large, which is beneficial to reducing the overall size of the duct air conditioner 1000 and realizing a thinner design of the duct air conditioner 1000.

[0093] The other structures and operations of the duct unit 1000 according to the embodiment of the present application are well known to those skilled in the art and will not be described in detail here.

[0094] In the description of this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature therebetween. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature.

[0095] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" 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 illustrative expressions 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 suitable manner in any one or more embodiments or examples.

[0096] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A ducted air conditioner (1000), comprising: A box body (500), the box body (500) has an air inlet (501) and an air outlet (502); An air duct housing (100), wherein the air duct housing (100) defines an air duct (1001); a heat exchanger (200), the heat exchanger (200) being disposed in the box (500); A cross-flow fan (300), the cross-flow fan (300) is arranged in the air duct (1001), It is characterized by: The heat exchanger (200) is closer to the air inlet (501) relative to the cross-flow fan (300), The air duct housing (100) comprises a first housing (10) and a second housing (20), wherein the second housing (20) is located on a side of the first housing (10) close to the air outlet (502). The first shell (10) has a take-in / take-out opening (101) connected to the air duct (1001); along the up-down direction, the size of the take-in / take-out opening (101) is larger than the outer diameter of the cross-flow fan (300); the first shell (10) and the second shell (20) are detachably connected; and the take-in / take-out opening (101) is located at the connection between the first shell (10) and the second shell (20).

2. A ducted air conditioner (1000), comprising: A box body (500), the box body (500) has an air inlet (501) and an air outlet (502); An air duct housing (100), wherein the air duct housing (100) defines an air duct (1001); a heat exchanger (200), the heat exchanger (200) being disposed in the box (500); A cross-flow fan (300), the cross-flow fan (300) is arranged in the air duct (1001), It is characterized by: The heat exchanger (200) is closer to the air inlet (501) relative to the cross-flow fan (300), The air duct housing (100) comprises a first housing (10) and a second housing (20), wherein the second housing (20) is located on a side of the first housing (10) close to the air outlet (502). The first shell (10) and the second shell (20) are detachably connected, and the cross-flow fan (300) is configured to be removed from the air outlet (502) after the second shell (20) is separated from the first shell (10).

3. The air duct machine (1000) according to claim 1 or 2, characterized in that: The first housing (10) comprises: Two first mounting members (13), the two first mounting members (13) being arranged opposite to each other along the axial direction of the cross-flow fan (300), A first connecting member (11) and a second connecting member (12), wherein the first connecting member (11) and the second connecting member (12) are respectively connected between the two first mounting members (13), and the first connecting member (11) and the second connecting member (12) are arranged opposite to each other along the radial direction of the cross-flow fan (300), and a take-in and put-out port (101) is defined between the first connecting member (11), the second connecting member (12) and the two first mounting members (13).

4. The air duct machine (1000) according to claim 3, characterized in that: One of the second shell (20) and the second connecting member (12) has a hook (221), and the other of the second shell (20) and the second connecting member (12) has a hole (121), and the hook (221) is engaged with the hole (121).

5. The air duct machine (1000) according to claim 4, characterized in that: One of the second shell (20) and the first connecting member (11) has a slot (111), and the other of the second shell (20) and the first connecting member (11) has an insert block (211), and the insert block (211) is plug-fitted with the slot (111).

6. The air duct machine (1000) according to claim 5, characterized in that: The second housing (20) and the first mounting member (13) are connected via fasteners.

7. The air duct machine (1000) according to claim 3, characterized in that: The second housing (20) comprises: two second mounting members (23), the two second mounting members (23) being arranged opposite to each other along the axial direction of the cross-flow fan (300); A third connecting member (21) and a fourth connecting member (22), the third connecting member (21) and the fourth connecting member (22) are respectively connected between the two second mounting members (23), and the third connecting member (21) and the fourth connecting member (22) are arranged opposite to each other along the radial direction of the cross-flow fan (300), the third connecting member (21) is detachably connected to the first connecting member (11), and the fourth connecting member (22) is detachably connected to the second connecting member (12).

8. The air duct machine (1000) according to claim 7, characterized in that: A first flow guide surface (212) is formed on a side of the third connecting member (21) close to the fourth connecting member (22), and an insert block (211) is provided on a side of the third connecting member (21) facing away from the fourth connecting member (22) for plugging and matching with the first connecting member (11).

9. The air duct machine (1000) according to claim 7, characterized in that: The fourth connecting member (22) comprises: A flow guiding section (2202), the flow guiding section (2202) being arranged opposite to the third connecting member (21), and a second flow guiding surface (222) being formed on a side of the flow guiding section (2202) close to the third connecting member (21), A connecting section (2201), the connecting section (2201) is located on a side of the guide section (2202) close to the first shell (10), and the connecting section (2201) has a hook (221) that is engaged with the first connecting member (11), and the connecting section (2201) and the guide section (2202) are connected to form a volute tongue portion.

10. The air duct machine (1000) according to claim 7, characterized in that: The second shell (20) further includes a reinforcing rib (25), wherein the reinforcing rib (25) is connected between the third connecting member (21) and the fourth connecting member (22).

11. The air duct machine (1000) according to claim 10, characterized in that: The second shell (20) is defined by a first communication port (201) and a second communication port (202), wherein the first communication port (201) is adjacent to the taking-in and putting-out port (101), and the second communication port (202) is adjacent to the air outlet (502), wherein the reinforcing rib (25) is located at the first communication port (201).

12. The air duct machine (1000) according to claim 3, characterized in that: The air duct machine (1000) further includes: A motor (400) is provided on one of the first mounting members (13); an output shaft (401) of the motor (400) extends into a first end of the cross-flow fan (300) and is used to drive the cross-flow fan (300) to rotate; a second end of the cross-flow fan (300) has a rotating shaft (301); another of the first mounting members (13) is provided with a bearing, and the rotating shaft (301) is mounted to the bearing.

13. The air duct machine (1000) according to claim 12, characterized in that: The first mounting member (13) provided with the bearing is defined with a mounting groove (132) corresponding to the position of the cross-flow fan (300); the cross-flow fan (300) can be inserted into the mounting groove (132); and the distance between the second end of the cross-flow fan (300) and the bottom wall of the mounting groove (132) is A; the dimension of the output shaft (401) of the motor (400) extending into the first end of the cross-flow fan (300) is B, satisfying: A≥B.

14. The air duct machine (1000) according to claim 12, characterized in that: A portion of the projection of the output shaft (401) of the motor (400) on the plane where the access opening (101) is located is located within the access opening (101), and in the axial direction of the cross-flow fan (300), the length dimension of the portion of the projection of the output shaft (401) of the motor (400) located within the access opening (101) is C, C≥10mm, C≤20mm.

15. The air duct machine (1000) according to claim 12, characterized in that: The air duct housing (100) has an air duct outlet connected to the air outlet (502); in the axial direction of the cross-flow fan (300), the projections of the first end and the second end of the cross-flow fan (300) on the plane where the air duct outlet is located are located outside the air duct outlet, and the distance between the cross-flow fan (300) and the edge of the air duct outlet in the axial direction is E; the radial dimension of the cross-flow fan (300) is D, E≥5%D, and E≤10%D.

16. The air duct machine (1000) according to claim 12, characterized in that: The radial dimension of the cross-flow fan (300) is D, D≥100mm, D≤120mm.

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