Air pipe indoor unit

Abstract

The invention provides an air pipe indoor unit which comprises an indoor unit shell and a fan component, the indoor unit shell is provided with a first communication port, a second communication port and a mounting cavity, and the fan component is arranged in the mounting cavity; the connecting part is arranged on the side portion of the indoor unit shell and used for being connected with an external structure; the air pipe indoor unit has a first installation state and a second installation state. When the air pipe indoor unit is in the first installation state, the fan component outputs air towards the first communicating port, and the first communicating port is located at the air outlet part of the installation foundation so that the connecting component can be located on one side of the installation foundation. And when the air pipe indoor unit is in the second installation state, the fan component outputs air towards the second communicating port, and the second communicating port is located at the air outlet part of the installation foundation, so that the connecting component is located on the other side of the installation foundation. By means of the technical scheme, the technical problem that in the prior art, the installation mode of the air pipe indoor unit cannot be adjusted can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air duct indoor units, and in particular to an air duct indoor unit. Background Art

[0002] At present, the duct indoor unit is generally installed in the ceiling or partition wall of the room. The duct indoor unit usually includes a fan component and an indoor unit housing. The wind flow generated by the fan component is sent into the room from the air outlet of the indoor unit housing, thereby achieving the purpose of regulating the indoor air.

[0003] However, the air outlet direction and pipe outlet direction of the duct indoor unit on the market are generally fixed. During the project installation, if the air outlet direction is determined, but the actual pipe outlet direction of the duct indoor unit is inconsistent with the predetermined direction of the project, or the actual pipe outlet direction is not conducive to the project installation, such as when the pipe connection space is limited, if the pipe outlet direction is changed by rotating the whole machine left and right, the water tray and water pump will not be usable, and the electronic expansion valve will be inverted, resulting in the duct indoor unit being unable to operate normally. Therefore, the duct indoor unit in the prior art can only be installed in the left or right style, and cannot be switched between the left and right styles, and the installation method cannot be flexibly adjusted. Summary of the invention

[0004] The main purpose of the present invention is to provide a duct indoor unit to solve the technical problem in the prior art that the installation method of the duct indoor unit cannot be adjusted.

[0005] In order to achieve the above object, the present invention provides a duct indoor unit, comprising:

[0006] An indoor unit housing and a fan component, wherein the indoor unit housing has a first communication port and a second communication port that are arranged opposite to each other, and a mounting cavity that is connected to both the first communication port and the second communication port, and the fan component is arranged in the mounting cavity;

[0007] A connecting component, disposed on a side of the indoor unit housing, the connecting component being used to connect to an external structure;

[0008] Wherein, the duct indoor unit has a first installation state and a second installation state; when the duct indoor unit is in the first installation state, the fan component discharges air toward the first connecting port, and the first connecting port is located at the air outlet portion of the installation base, so that the connecting component is located on one side of the installation base; when the duct indoor unit is in the second installation state, the fan component discharges air toward the second connecting port, and the second connecting port is located at the air outlet portion of the installation base, so that the connecting component is located on the other side of the installation base.

[0009] Further, the fan component has an air outlet, and the fan component is adjustably arranged in the installation cavity to be in a first installation position or a second installation position;

[0010] Wherein, when the fan component is in the first installation position, the air outlet is arranged toward the first connecting port; when the fan component is in the second installation position, the air outlet is arranged toward the second connecting port.

[0011] Furthermore, the air duct indoor unit also includes:

[0012] A driving member is installed in the installation cavity, and a driving end of the driving member is drivingly connected to the housing of the fan component to drive the fan component to move to the first installation position or the second installation position.

[0013] Furthermore, the indoor unit casing includes a main body and a disassembly part which are interconnected, the main body having an installation notch adapted to the fan component, and the disassembly part can be detachably installed at the installation notch; the fan component is removed or installed through the installation notch to adjust the fan component to the first installation position or the second installation position.

[0014] Further, the disassembly portion is located at the bottom of the main body; and / or,

[0015] The main body is provided with a first connection part, and the disassembly part is provided with a second connection part matched with the first connection part, and the first connection part is used to be connected with the second connection part.

[0016] Furthermore, at least part of the fan component is detachably arranged on the indoor unit casing.

[0017] Furthermore, the fan component comprises:

[0018] A mounting portion, the mounting portion forming at least a portion of the fan component, the mounting portion being provided with a relief opening;

[0019] A fan is installed on the mounting portion and is located on one side of the mounting portion, and the air outlet of the fan is arranged toward the avoidance opening;

[0020] Wherein, when the fan component is in the first installation position, the fan is located on the side of the installation portion close to the second connecting port; when the fan component is in the second installation position, the fan is located on the side of the installation portion close to the first connecting port.

[0021] Furthermore, a first guide portion is provided on the indoor unit casing, and a second guide portion matched with the first guide portion is provided on the mounting portion, at least one of the first guide portion and the second guide portion extends along the disassembly direction of the mounting portion, and the first guide portion and the second guide portion cooperate to guide and cooperate so that the mounting portion can be installed into or removed from the indoor unit casing.

[0022] Furthermore, the fan component comprises:

[0023] A volute, wherein the volute has an air inlet, a first air outlet and a second air outlet, wherein the air inlet can be selectively connected to the first air outlet or the second air outlet, wherein the first air outlet is arranged toward the first connecting port, and the second air outlet is arranged toward the second connecting port.

[0024] Furthermore, the fan component also includes:

[0025] a first baffle, movably disposed at the first air outlet to block or avoid the first air outlet; and / or,

[0026] The second baffle is movably disposed at the second air outlet to block or avoid the second air outlet.

[0027] Further, the connecting component includes at least one of an air pipe, a liquid pipe, a drain pipe, and an electric control; and / or,

[0028] At least a portion of the connecting component is protruded from a side portion of the indoor unit casing.

[0029] By applying the technical solution of the present invention, the duct indoor unit of the present application realizes the switching of the installation state of the duct indoor unit through the adjustable position design of the air outlet direction of the fan component, so that the connecting component is located on one side or the other side of the installation base, so as to meet the needs of different installation environments and improve the convenience and applicability of installation. This design not only improves the practicality of the duct indoor unit, but also optimizes the space utilization and provides users with more flexible and changeable installation options. Therefore, the technical solution provided by the present invention can solve the technical problem that the installation method of the duct indoor unit cannot be adjusted in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 An exploded view of an air duct indoor unit provided in an embodiment of the present invention in a first installation position is shown;

[0032] Figure 2 It shows a schematic structural diagram of an air duct indoor unit provided in an embodiment of the present invention when it is in a first installation position;

[0033] Figure 3 An exploded view of the duct indoor unit provided in an embodiment of the present invention in a second installation position is shown;

[0034] Figure 4 A schematic structural diagram of an air duct indoor unit provided according to an embodiment of the present invention in a second installation position is shown.

[0035] The above drawings include the following reference numerals:

[0036] 10. Indoor unit housing;

[0037] 11. A first communication port;

[0038] 12. A second connecting port;

[0039] 13. Installation cavity;

[0040] 14. Main body;

[0041] 15. Disassembly and assembly department;

[0042] 20. Fan parts;

[0043] 21. Air outlet;

[0044] 22. Installation department;

[0045] 23. Fan;

[0046] 24. Snail case;

[0047] 25. Air inlet;

[0048] 26. Motor;

[0049] 30. Connecting parts. DETAILED DESCRIPTION

[0050] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0051] like Figures 1 to 4As shown, the first embodiment of the present invention provides a duct indoor unit, which includes an indoor unit housing 10, a fan component 20 and a connecting component 30. The indoor unit housing 10 has a first connecting port 11 and a second connecting port 12 arranged opposite to each other, and an installation cavity 13 connected to the first connecting port 11 and the second connecting port 12, and the fan component 20 is arranged in the installation cavity 13. The connecting component 30 is arranged on the side of the indoor unit housing 10, and the connecting component 30 is used to connect with an external structure. The duct indoor unit has a first installation state and a second installation state; when the duct indoor unit is in the first installation state, the fan component 20 discharges air toward the first connecting port 11, and the first connecting port 11 is located at the air outlet of the installation base, so that the connecting component 30 is located on one side of the installation base; when the duct indoor unit is in the second installation state, the fan component 20 discharges air toward the second connecting port 12, and the second connecting port 12 is located at the air outlet of the installation base, so that the connecting component 30 is located on the other side of the installation base.

[0052] The duct indoor unit provided in this embodiment is adopted. This design enables the duct indoor unit to adjust the installation state according to the actual space requirements during installation, which greatly improves the flexibility of installation. And when the duct indoor unit is adjusted to the first installation state or the second installation state, so that the connecting component 30 is located on one side or the other side of the installation base, it is convenient for the connecting component 30 to be adaptively adjusted according to the position of the external structure, thereby facilitating the connection between the connecting component 30 and the external structure. In addition, the duct indoor unit in this embodiment can also make the duct indoor unit in a normal operating state in both the first installation state and the second installation state, and can smoothly inlet and outlet air. Therefore, the technical solution provided by the present invention can solve the technical problem that the installation method of the duct indoor unit cannot be adjusted in the prior art.

[0053] Specifically, one of the first installation state and the second installation state corresponds to left-type installation, and the other of the first installation state and the second installation state corresponds to right-type installation. The installation base may be a wall.

[0054] Specifically, the indoor unit casing 10 is a square casing.

[0055] The duct indoor unit provided in this embodiment is suitable for various installation environments, such as homes, offices, shopping malls, etc., especially in places with complex spatial layouts or special needs, such as multi-story commercial spaces or residential areas where the impact of wind direction on interior decoration needs to be considered. It can better meet user needs and improve the comfort and efficiency of air conditioning.

[0056] In this embodiment, the fan component 20 has an air outlet 21, and the position of the fan component 20 is adjustable in the installation cavity 13 to be in the first installation position or the second installation position; wherein, when the fan component 20 is in the first installation position, the air outlet 21 is arranged toward the first connecting port 11; when the fan component 20 is in the second installation position, the air outlet 21 is arranged toward the second connecting port 12. By changing the position of the fan component 20, the wind direction can be easily adjusted, so that the duct indoor unit can smoothly discharge air toward the air outlet portion of the installation base in both the first installation state and the second installation state. In addition, the above-mentioned setting does not require additional duct adjustment or repositioning of the indoor unit, which reduces the installation cost and complexity, and is particularly suitable for scenes where the decoration has been completed but the air outlet direction of the air conditioner needs to be adjusted, such as after the home decoration, the user adjusts the air outlet direction of the air conditioner according to the change of the furniture layout to achieve the best indoor comfort, or after the office space is rearranged, the air outlet of the air conditioner is adjusted to adapt to the new work area requirements. This flexibility can significantly improve the user experience and space utilization efficiency.

[0057] In one embodiment, the duct indoor unit further includes a driving member, which is installed in the installation cavity 13, and the driving end of the driving member is drivingly connected to the housing of the fan component 20 to drive the fan component 20 to move to the first installation position or the second installation position. With such a setting, the addition of the driving member automates the adjustment process of the fan component 20, and the user or installer only needs to control the operation of the driving member to change the air outlet direction, thereby improving the user experience.

[0058] In another embodiment, the indoor unit housing 10 includes a main body 14 and a disassembly part 15 connected to each other, the main body 14 has an installation notch adapted to the fan component 20, and the disassembly part 15 is detachably installed at the installation notch; the fan component 20 is removed or installed through the installation notch to adjust the fan component 20 to the first installation position or the second installation position. This modular design not only simplifies the adjustment process of the fan component 20, but also facilitates installation, maintenance and replacement, and is particularly suitable for large-scale installation and maintenance in commercial buildings.

[0059] Specifically, the disassembly portion 15 is located at the bottom of the main body 14. The bottom disassembly design makes it easier to adjust the fan component 20 without moving the entire indoor unit, reducing the physical labor during installation and adjustment. It is suitable for environments such as homes and small offices where the air outlet direction needs to be adjusted frequently, especially for those with limited space where moving the indoor unit may cause inconvenience in furniture and layout. The bottom disassembly design not only saves space, but also simplifies the adjustment process and improves the user's operational convenience.

[0060] Specifically, the disassembly portion 15 is a disassembly cover.

[0061] In this embodiment, a first connection part is provided on the main body 14, and a second connection part adapted to the first connection part is provided on the disassembly part 15, and the first connection part is used to be connected with the second connection part. With such a configuration, it is easy to ensure the connection stability between the main body 14 and the disassembly part 15. Specifically, the first connection part and the second connection part can be connected by snapping; or, the first connection part and the second connection part are both connection holes, and the locking member is inserted through the first connection hole and the second connection hole and is locked and connected with the main body 14.

[0062] In this embodiment, at least part of the fan component 20 is detachably disposed on the indoor unit housing 10. This detachable design not only facilitates position adjustment, replacement and maintenance of the fan component 20, but also allows the user to select different types of fan components 20 as needed to meet different air volume requirements and noise control requirements.

[0063] Specifically, the fan component 20 includes a mounting portion 22 and a fan 23, wherein the mounting portion 22 forms at least a part of the fan component 20, and a avoidance opening is provided on the mounting portion 22. The fan 23 is mounted on the mounting portion 22 and is located on one side of the mounting portion 22, and the air outlet 21 of the fan 23 is arranged toward the avoidance opening. When the fan component 20 is in the first mounting position, the fan 23 is located on the side of the mounting portion 22 close to the second connecting opening 12; when the fan component 20 is in the second mounting position, the fan 23 is located on the side of the mounting portion 22 close to the first connecting opening 11. The design of the avoidance opening ensures that the fan component 20 can discharge air normally toward the air outlet of the mounting base when it is adjusted to the first mounting position and the second mounting position, that is, the duct indoor unit can discharge air normally in both the first mounting state and the second mounting state.

[0064] Specifically, the mounting portion 22 is a mounting plate.

[0065] Specifically, the fan component 20 further includes a motor 26 and fan blades, and the motor 26 drives the fan blades to rotate.

[0066] In this embodiment, a first guide portion is provided on the indoor unit housing 10, and a second guide portion matched with the first guide portion is provided on the mounting portion 22, at least one of the first guide portion and the second guide portion extends along the disassembly direction of the mounting portion 22, and the first guide portion and the second guide portion cooperate in a guiding manner so that the mounting portion 22 is installed into or removed from the indoor unit housing 10. The provision of the guide portion simplifies the installation and disassembly process of the fan component 20, ensures the accuracy and stability of the installation, is suitable for temporary places that require rapid installation and disassembly, improves the installation switching efficiency, and also ensures the stable operation of the system in different states, and improves the comfort and work efficiency of the temporary space.

[0067] During the project installation, the direction of the fan component 20 is adjusted to switch between left-type installation and right-type installation to meet the requirements of different projects for different outlet directions. Facing the air outlet direction of the unit, the air pipe, liquid pipe, drain pipe, and electric control are on the left side for the left-type installation of the duct indoor unit, and on the right side for the right-type installation of the duct indoor unit. Figure 1 and Figure 2 The left-hand type duct indoor unit is shown. Figure 2 The arrows in the figure represent the direction of air flow. Figure 3 and Figure 4 The right-side duct indoor unit is shown. Figure 4 The arrows in the figure represent the direction of air flow.

[0068] The duct indoor unit of this patent includes a main body 14, a fan component 20, and a lower cover (corresponding to the disassembly and assembly part 15), wherein the connecting component 30) the main body 14 includes the necessary indoor unit housing 10, evaporator, water collection tray, water pump, and electronic control; the structure of installing the fan component 20 on the main body is consistent with the structure at the air inlet 25 of the original left-type installation to ensure that the fan component 20 can be switched smoothly. The installation structure here can be slid in by screws, buckles, or rails. When the right-side installation is required due to limited outlet space or the exhaust duct and gas and liquid pipe paths have been planned in advance, it is only necessary to remove the lower cover of the duct machine and take out the entire fan component 20 from the bottom (the advantage of taking it out from the bottom is that if the whole machine has been installed in the project, if the air outlet direction needs to be changed, it can also be achieved by the method of this patent without dismantling the whole machine), rotate the fan component 20 horizontally 180 degrees, change the installation direction of the fan component 20, and then reinstall the lower cover to complete the switch from left-side installation to right-side installation; if the initial state of the duct machine is right-side installation, the same method can be used to achieve the switch from left-side installation. During the project installation, the engineering personnel can freely switch the installation method according to the actual installation conditions, without being restricted by the original factory default outlet position. The installation method is very flexible, providing more options for project installation and improving the convenience of project installation.

[0069] When the left-side installation is switched to the right-side installation, the duct indoor unit is converted from the original blowing type to the suction type; a sensor for detecting the air volume is provided on the evaporator, and the corresponding control mode can be selected according to different air outlet modes. At the same time, the real-time monitoring air volume can be fed back to the control circuit to adjust the speed of the fan 23 to ensure the air outlet and static pressure requirements of the unit.

[0070] In another embodiment, a duct indoor unit is provided. The difference between the duct indoor unit in this embodiment and the duct indoor unit in another embodiment mainly lies in the difference in the structure of the fan component 20. The fan component 20 includes a volute 24, and the volute 24 has an air inlet 25, a first air outlet, and a second air outlet. The air inlet 25 can be selectively connected to the first air outlet or the second air outlet. The first air outlet is arranged toward the first connecting port 11, and the second air outlet is arranged toward the second connecting port 12. Such an arrangement can change the air outlet direction of the fan component 20 without adjusting the position of the fan component 20, so that the duct indoor unit can smoothly discharge air toward the air outlet portion of the installation base in both the first installation state and the second installation state.

[0071] Specifically, the fan component 20 further includes a first baffle, which is movably disposed at the first air outlet to block or avoid the first air outlet, so as to facilitate air discharge through the first air outlet or close the first air outlet.

[0072] The fan component 20 also includes a second baffle, which is movably arranged at the second air outlet to block or avoid the second air outlet. In this way, it is convenient to discharge air through the second air outlet or close the second air outlet.

[0073] In all the above embodiments, the connecting component 30 includes at least one of an air pipe, a liquid pipe, a drainage pipe, and an electric control, so as to facilitate the connection of the connecting component 30 with external components.

[0074] In all the above embodiments, at least a portion of the connecting component 30 is disposed protruding from the side of the indoor unit casing 10. Such a position arrangement can facilitate the connection of the connecting component 30 with external components.

[0075] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: no additional materials are required, and the existing outlet direction is not limited, which provides more options for engineering installation and flexible installation methods. When the outlet direction of the indoor unit of the duct is not conducive to engineering installation, such as when the pipe position is limited, the left-type installation and the right-type installation can be flexibly switched.

[0076] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0077] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0078] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0079] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0080] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A duct indoor unit, characterized in that: include: An indoor unit casing (10) and a fan component (20), wherein the indoor unit casing (10) has a first communication port (11) and a second communication port (12) arranged opposite to each other, and a mounting cavity (13) communicating with both the first communication port (11) and the second communication port (12), and the fan component (20) is arranged in the mounting cavity (13); A connecting component (30) is arranged on a side of the indoor unit casing (10), and the connecting component (30) is used to connect to an external structure; The duct indoor unit has a first installation state and a second installation state; when the duct indoor unit is in the first installation state, the fan component (20) discharges air toward the first connecting port (11), and the first connecting port (11) is located at the air outlet portion of the installation base, so that the connecting component (30) is located on one side of the installation base; when the duct indoor unit is in the second installation state, the fan component (20) discharges air toward the second connecting port (12), and the second connecting port (12) is located at the air outlet portion of the installation base, so that the connecting component (30) is located on the other side of the installation base.

2. The duct indoor unit according to claim 1, characterized in that: The fan component (20) has an air outlet (21), and the fan component (20) is arranged in the installation cavity (13) in an adjustable manner so as to be in a first installation position or a second installation position; Wherein, when the fan component (20) is in the first installation position, the air outlet (21) is arranged toward the first connecting port (11); when the fan component (20) is in the second installation position, the air outlet (21) is arranged toward the second connecting port (12).

3. The duct indoor unit according to claim 2, characterized in that: The air duct indoor unit also includes: A driving member is installed in the installation cavity (13), and a driving end of the driving member is drivingly connected to the housing of the fan component (20) to drive the fan component (20) to move to the first installation position or the second installation position.

4. The duct indoor unit according to claim 2, characterized in that: The indoor unit casing (10) comprises a main body (14) and a disassembly portion (15) which are connected to each other; the main body (14) has a mounting notch which matches the fan component (20); the disassembly portion (15) is detachably mounted at the mounting notch; the fan component (20) is removed or installed through the mounting notch to adjust the fan component (20) to the first mounting position or the second mounting position.

5. The duct indoor unit according to claim 4, characterized in that: The disassembly portion (15) is located at the bottom of the main body (14); and / or, The main body (14) is provided with a first connection part, and the disassembly part (15) is provided with a second connection part adapted to the first connection part, wherein the first connection part is used for being connected to the second connection part.

6. The duct indoor unit according to claim 4, characterized in that: At least part of the fan component (20) is detachably arranged on the indoor unit casing (10).

7. The duct indoor unit according to claim 6, characterized in that: The fan component (20) comprises: A mounting portion (22), the mounting portion (22) forming at least a portion of the fan component (20), and a relief opening being provided on the mounting portion (22); A fan (23) is mounted on the mounting portion (22) and is located on one side of the mounting portion (22), and the air outlet (21) of the fan (23) is arranged toward the avoidance opening; Wherein, when the fan component (20) is in the first installation position, the fan (23) is located on a side of the installation portion (22) close to the second connecting port (12); when the fan component (20) is in the second installation position, the fan (23) is located on a side of the installation portion (22) close to the first connecting port (11).

8. The duct indoor unit according to claim 7, characterized in that: The indoor unit casing (10) is provided with a first guide portion, and the mounting portion (22) is provided with a second guide portion matched with the first guide portion, at least one of the first guide portion and the second guide portion extends along a disassembly direction of the mounting portion (22), and the first guide portion and the second guide portion cooperate in guiding so that the mounting portion (22) can be installed into the indoor unit casing (10) or removed from the indoor unit casing (10).

9. The duct indoor unit according to claim 1, characterized in that: The fan component (20) comprises: A volute (24), wherein the volute (24) has an air inlet (25), a first air outlet and a second air outlet, wherein the air inlet (25) can be selectively connected to the first air outlet or the second air outlet, wherein the first air outlet is arranged toward the first connecting port (11), and the second air outlet is arranged toward the second connecting port (12).

10. The duct indoor unit according to claim 9, characterized in that: The fan component (20) further comprises: a first baffle, movably disposed at the first air outlet to block or avoid the first air outlet; and / or, The second baffle is movably disposed at the second air outlet to block or avoid the second air outlet.

11. The duct indoor unit according to any one of claims 1 to 10, characterized in that: The connecting component (30) includes at least one of an air pipe, a liquid pipe, a drain pipe, and an electric control; and / or, At least a portion of the connecting component (30) is disposed protruding from a side portion of the indoor unit casing (10).

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