Duct machine

Abstract

The present invention relates to the field of air conditioning technology, and specifically to a duct machine. The duct machine described in the present invention includes: a top cover plate, a side plate and a volute assembly, the top cover plate and / or the side plate are provided with a protruding structure, the protruding structure protrudes toward the inside of the duct machine, and the volute assembly is detachably connected to the protruding structure. Therefore, by providing a protruding structure on the top cover plate, the structure of the top cover plate is enhanced; by providing a protruding structure on the side plate, the structure of the side plate is enhanced. Installing the volute assembly on the protruding structure can avoid the need to provide a partition in the duct machine, and also avoid the need to disassemble and assemble the partition during disassembly and assembly, which is more convenient. At the same time, it also reduces the cost of raw materials and improves the efficiency of disassembly and assembly. The direct contact surface with the volute assembly is formed by the protruding structure, which is convenient for disassembly and assembly.

Description

Technical Field

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

[0002] Usually, a partition is provided inside the duct air conditioner, and the volute assembly is installed on the partition. When the evaporator of the air conditioner is maintained, the partition needs to be removed, which causes unnecessary trouble in disassembling the machine. After the partition is removed, the strength of the duct air conditioner becomes lower and it is easy to deform. Summary of the invention

[0003] The problem solved by the present invention is to provide a duct machine to solve at least one of the above technical problems.

[0004] To solve the above problems, the present invention provides a duct machine, comprising: a top cover plate, a side plate and a volute assembly, wherein the top cover plate and / or the side plate are provided with a protruding structure, the protruding structure protrudes toward the interior of the duct machine, and the volute assembly is detachably connected to the protruding structure.

[0005] Thus, by providing a protruding structure on the top cover plate, the structure of the top cover plate is enhanced; by providing a protruding structure on the side plate, the structure of the side plate is enhanced. By installing the volute assembly on the protruding structure, it is possible to avoid providing a partition in the duct machine, and also avoid disassembly and assembly of the partition during disassembly and assembly, which is more convenient. At the same time, it also reduces the cost of raw materials and improves the efficiency of disassembly and assembly. The protruding structure forms a direct contact surface with the volute assembly, which is convenient for disassembly and assembly.

[0006] Optionally, the protrusion structure includes a rib-like structure or a hollow structure.

[0007] Therefore, by setting the protruding structure as a rib-like structure or a hollow structure, the processing of the protruding structure is facilitated, and on the other hand, the top cover plate and / or the side plate can be reinforced.

[0008] Optionally, the protruding structure comprises a groove-shaped structure, and two opposite side walls of the groove-shaped structure are respectively connected to the top cover plate and / or the side plate.

[0009] Therefore, by setting the protruding structure as a groove-shaped structure and connecting the two side walls of the groove-shaped structure to the top cover plate and / or the side plate respectively, the top cover plate and / or the side plate are reinforced.

[0010] Optionally, the volute assembly includes a mounting plate for mounting the volute, and the mounting plate is detachably connected to the protruding structure.

[0011] Therefore, through the setting of the mounting plate, the volute is installed on the mounting plate, and then connected to the protruding structure through the mounting plate, avoiding directly installing the volute on the mounting plate. The structure of the volute can also be enhanced through the mounting plate.

[0012] Optionally, a mounting hole is provided on the protruding structure, and a hook is provided on the mounting plate, and the hook cooperates with the mounting hole.

[0013] Thus, by cooperating between the hook and the mounting hole, the volute assembly can be hung on the protruding structure, which facilitates the disassembly of the volute assembly.

[0014] Optionally, a positioning pin is provided on the mounting plate, a positioning hole is provided on the protruding structure, and the positioning pin matches the positioning hole;

[0015] And / or a positioning hole is formed on the mounting plate, a positioning pin is provided on the protruding structure, and the positioning pin matches the positioning hole.

[0016] Thus, the positioning of the mounting plate on the protruding structure is achieved by setting the positioning pin and the positioning hole. In addition, the positioning of the mounting plate in multiple directions such as XYZ is achieved by cooperating with the hook through the positioning pin.

[0017] Optionally, the protrusion structure includes a first protrusion structure, the first protrusion structure is connected to the side plate, and the mounting hole is located on the first protrusion structure.

[0018] In this way, it is possible to avoid installing the hook closer to the side panel and setting the mounting hole on the top cover plate, so that the installation of the hook occupies the middle area of ​​the air duct machine and reasonably utilizes the space inside the air duct machine close to the side panel area.

[0019] Optionally, the protrusion structure includes a second protrusion structure, the second protrusion structure is connected to the top cover plate, and the positioning pin and / or the positioning hole are located on the second protrusion structure.

[0020] Thus, by providing the second protruding structure on the top cover plate and installing the positioning pin and / or the positioning hole on the top cover plate, the positioning pin and the positioning hole are matched closer to the top cover plate, so that the center position of the mounting plate can be positioned without occupying the space in the center area of ​​the air duct machine. In addition, the mounting plate can simultaneously fix the top cover plate and the side plate, thereby enhancing the overall structure of the air duct machine.

[0021] Optionally, the protruding structure is integrally connected to the top cover plate or the side plate.

[0022] Therefore, the integrally connected structure facilitates processing and molding, and can also improve the stability of fixing the mounting plate.

[0023] Optionally, a guide slot is provided on the side plate, a guide column is provided on the mounting plate, and the guide column is slidably connected to the guide slot.

[0024] Thus, by providing the second protruding structure on the top cover plate and installing the positioning pin and / or the positioning hole on the top cover plate, the positioning pin and the positioning hole are matched closer to the top cover plate, so that the center position of the mounting plate can be positioned without occupying the space in the center area of ​​the air duct machine. In addition, the mounting plate can simultaneously fix the top cover plate and the side plate, thereby enhancing the overall structure of the air duct machine.

[0025] Optionally, the guide groove includes a strip groove, a guide groove and a limit groove which are interconnected in sequence, and the limit groove is inclined or vertically arranged relative to the strip groove; the guide groove is used to guide the guide column from the strip groove to the limit groove; the limit groove has a first position for installing the volute assembly on the protruding structure.

[0026] Therefore, by setting the guide groove, the guiding of the guide column from the strip groove to the limiting groove is achieved; by setting the limiting groove, the limiting of the volute assembly is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 An exploded view of the duct machine in an embodiment of the present invention;

[0028] Figure 2 It is an axonometric view of the duct machine in the embodiment of the present invention;

[0029] Figure 3 For the present invention Figure 2 A local enlarged view of point A in FIG.

[0030] Figure 4 It is a structural schematic diagram of a volute assembly in an embodiment of the present invention;

[0031] Figure 5 For the present invention Figure 4 A local enlarged view of point B in FIG.

[0032] Figure 6 A rear view of a volute assembly in an embodiment of the present invention;

[0033] Figure 7 For the present invention Figure 6 A local enlarged view of point C in FIG.

[0034] Figure 8 It is a schematic diagram of the structure of the top cover plate in an embodiment of the present invention;

[0035] Fig. 9 It is a schematic structural diagram of a side plate in an embodiment of the present invention;

[0036] Fig.10 For the present invention Fig. 9 A local enlarged view of D in FIG.

[0037] Fig.11 It is a schematic structural diagram of a side panel in another embodiment of the present invention;

[0038] Fig.12 For the present invention Fig.11 A local enlarged view of point E in FIG.

[0039] Description of reference numerals:

[0040] 1-top cover plate, 2-side plate, 3-evaporator, 4-volute assembly, 5-protrusion structure, 11-second protrusion structure, 21-first protrusion structure, 22-guide groove, 41-mounting plate, 42-volute, 111-positioning hole, 211-mounting hole, 221-strip groove, 222-guide groove, 223-limiting groove, 411-mounting plate body, 412-positioning pin, 413-hook, 414-guide column. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0042] In addition, all directions or positional relationships mentioned in the text in the embodiments of the present invention are based on the positional relationships in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not imply or suggest that the referred device or element must have a specific orientation, and cannot be understood as a limitation on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The drawings of this specification are provided with an XYZ coordinate system, where the positive direction of the X axis represents the front, the reverse direction of the X axis represents the rear, the positive direction of the Y axis represents the right, the reverse direction of the Y axis represents the left, the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom, where "left", "right", "up" and "down" do not constitute a limitation on the specific structure, but are only based on the position in the drawings. In this specification, unless otherwise clearly specified and limited, the up and down direction is consistent with the up and down direction of the actual installation of the duct machine, that is, consistent with the Z-axis direction in the drawings.

[0045] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0046] One embodiment of the present invention provides a duct machine, such as Figure 1-3 , 8 and 9, comprising: a top cover plate 1, a side plate 2 and a volute assembly 4, the top cover plate 1 and / or the side plate 2 are provided with a protruding structure 5, the protruding structure 5 protrudes toward the interior of the air duct machine, and the volute assembly 4 is detachably connected to the protruding structure 5.

[0047] It should be noted that the duct machine is provided with an evaporator 3 inside, and the protruding structure 5 can be integrally connected with the top cover plate 1 or the side plate 2. The volute assembly 4 and the protruding structure 5 are provided with matching connection structures respectively, so that the volute assembly 4 is installed on the protruding structure 5. In one embodiment of the present invention, the protruding structure 5 includes a first protruding structure 21, the first protruding structure 21 is connected to the side plate 2, and the volute assembly 4 is screwed or snap-connected to the first protruding structure 21. In one embodiment of the present invention, the protruding structure 5 includes a second protruding structure 11, the second protruding structure 11 is connected to the top cover plate 1, and the volute assembly 4 is screwed or snap-connected to the second protruding structure 11. In one embodiment of the present invention, the protruding structure 5 includes a first protruding structure 21 and a second protruding structure 11, the second protruding structure 11 is connected to the top cover plate 1, the first protruding structure 21 is connected to the side plate 2, and the volute assembly 4 is screwed or snap-connected to the first protruding structure 21 and the second protruding structure 11.

[0048] The advantage of such a configuration is that by providing a protruding structure 5 on the top cover plate 1, the structure of the top cover plate 1 is enhanced; by providing a protruding structure 5 on the side plate 2, the structure of the side plate 2 is enhanced. By installing the volute assembly 4 on the protruding structure, it is possible to avoid providing a partition in the duct machine, and also avoid disassembly and assembly of the partition during disassembly and assembly, which is more convenient. At the same time, it also reduces the cost of raw materials and improves the efficiency of disassembly and assembly. The protruding structure 5 forms a direct contact surface with the volute assembly 4, which is convenient for disassembly and assembly.

[0049] In the embodiment of the present invention, the protruding structure 5 is integrally connected to the top cover plate 1 or the side plate 2. That is, when the protruding structure 5 is disposed on the top cover plate 1, the protruding structure 5 is integrally connected to the top cover plate 1; when the protruding structure 5 is disposed on the side plate 2, the protruding structure 5 is integrally connected to the side plate 2. The integrally connected structure facilitates processing and molding, and at the same time can improve the stability of the fixing of the mounting plate 41.

[0050] In one embodiment, the protruding structure 5 includes a rib-like structure, the rib-like structure is perpendicular to the top cover plate 1 or the side plate 2, and the volute assembly 4 and the rib-like structure are respectively provided with matching connection structures, so that the volute assembly 4 is installed on the protruding structure 5. In one embodiment, the protruding structure 5 includes a hollow structure, that is, the interior of the protruding structure 5 is a cavity structure. Therefore, by setting the protruding structure as a rib-like structure or a hollow structure, the processing of the protruding structure is facilitated, and on the other hand, the top cover plate and / or the side plate can be strengthened.

[0051] In one embodiment, Figure 3 As shown, the raised structure 5 includes a groove-like structure, wherein the two opposite side walls of the groove-like structure are connected to the top cover plate 1 and / or the side plate 2, the groove-like structure is located on the top cover plate 1 or the side plate 2 close to the inside of the air duct machine, the opening of the groove-like structure faces the outside of the air duct machine, and the side walls of the groove-like structure connected to the top cover plate 1 and / or the side plate 2 are arranged along the Z-axis direction. The volute assembly 4 and the side walls of the groove-like structure are respectively provided with matching connecting structures, so that the volute assembly 4 is installed on the raised structure 5. Therefore, by setting the raised structure as a groove-like structure and connecting the two side walls of the groove-like structure to the top cover plate and / or the side plate respectively, the top cover plate and / or the side plate are strengthened. In an embodiment of the present invention, as Figure 1 and Figure 4As shown, the volute assembly 4 includes a mounting plate 41 for mounting the volute 42, and the mounting plate 41 is detachably connected to the protruding structure 5. The mounting plate 41 is provided with a through hole, and the through hole is connected to the air outlet of the volute 42. Here, the volute 42 and the mounting plate 41 can be integrally formed or detachably connected. The mounting plate 41 and the protruding structure 5 are respectively provided with matching connecting structures, so that the volute assembly 4 is installed on the protruding structure 5. A water receiving tray is provided below the evaporator 3, and there is a certain distance between the lower end of the mounting plate 41 and the bottom plate of the air duct machine. The distance between the lower end of the mounting plate 41 and the bottom plate of the air duct machine is greater than the thickness of the water receiving tray, and the water receiving tray can slide along the bottom plate. When the water receiving tray needs to be cleaned, the mounting plate can be avoided from being disassembled, and the water receiving tray can be directly pulled out through the gap between the mounting plate 41 and the bottom plate.

[0052] Therefore, through the setting of the mounting plate 41, the volute 42 is installed on the mounting plate 41, and then connected to the protruding structure 5 through the mounting plate 41, avoiding directly installing the volute 42 on the mounting plate 41. The structure of the volute 42 can also be enhanced through the mounting plate 41.

[0053] In an embodiment of the present invention, Figures 3 to 7 As shown, a mounting hole 211 is formed on the protruding structure 5 , and a hook 413 is provided on the mounting plate 41 , and the hook 413 matches with the mounting hole 211 .

[0054] It should be noted that the protruding structure 5 protrudes toward the inside of the air duct machine, and the protruding structure 5 is located on the top cover plate 1 and / or the side plate 2, and the protruding structure 5 is perpendicular to the top cover plate 1 or the side plate 2. The protruding structure 5 is a rib structure, and the mounting hole 211 is opened on the rib structure, or the protruding structure 5 is a groove structure, and the mounting hole 211 is opened on the side wall of the groove structure close to the mounting plate 41. The hook 413 is located on the side of the mounting plate 41 close to the protruding structure 5, and the hook 413 passes through the mounting hole 211 and cooperates with the edge of the mounting hole 211 to form a limit, so as to realize the positioning of the mounting plate 41 in the X direction, as shown in FIG. Figure 5 As shown, the hook 413 is an L-shaped structure, the mounting hole 211 is a strip hole, and the length direction of the strip hole is arranged along the Z-axis direction. The engagement gap of the hook 413 is d, which is the distance from the inner side of the hook 413 to the mounting plate body 411, and the engagement gap d is between 0.5 and 1.5 mm.

[0055] The advantage of such a configuration is that, through the cooperation between the hook 413 and the mounting hole 211 , the volute assembly 4 can be hung on the protruding structure 5 , thereby facilitating the disassembly of the volute assembly 4 .

[0056] like Figures 3 to 7 As shown, a positioning pin 412 is provided on the mounting plate 41 , a positioning hole 111 is opened on the protruding structure 5 , and the positioning pin 412 matches the positioning hole 111 .

[0057] It should be noted that the protruding structure 5 is a rib structure, and the positioning hole 111 is opened on the rib structure, or the protruding structure 5 is a groove structure, and the positioning hole 111 is opened on the side wall of the groove structure close to the mounting plate 41, and the positioning pin 412 is located on the side of the mounting plate 41 close to the protruding structure 5, and the shape and size of the positioning hole 111 are the same as the cross-sectional shape of the positioning pin 412. Figure 5 As shown, the positioning pin 412 protrudes from the mounting plate 41. When the mounting plate 41 is hung on the protruding structure 5, the positioning pin 412 is inserted into the mounting hole 211 to form positioning. In one embodiment of the present invention, a positioning hole 111 is provided on the mounting plate 41, and a positioning pin 412 is provided on the protruding structure 5. The positioning pin 412 matches the positioning hole 111, so as to realize the positioning of the mounting plate 41 in the Y-axis direction and the Z-axis direction. Here, the height of the positioning pin 412 is h, where h is between 0-0.8mm, so as to avoid the length of the positioning pin 412 being too large, so as to prevent the hook 413 from sliding out of the mounting hole 211. When the positioning pin 412 is inserted into the positioning hole 111, the gap between the positioning pin 412 and the positioning hole 111 is between 0-1mm, so as to avoid the positioning being inaccurate due to the gap being too large, and causing the volute assembly 4 to shake.

[0058] The advantage of such a configuration is that the positioning pin 412 and the positioning hole 111 are provided to realize the positioning of the mounting plate 41 on the protruding structure 5. In addition, the positioning pin 412 cooperates with the hook 413 to realize the positioning of the mounting plate 41 in multiple directions such as XYZ.

[0059] In an embodiment of the present invention, Figure 3As shown, the protruding structure 5 includes a first protruding structure 21, the first protruding structure 21 is connected to the side plate 2, and the mounting hole 211 is located on the first protruding structure 21. Here, the mounting hole 211 is used to connect with the hook 413, and the hook 413 and the mounting hole 211 need to provide a larger displacement space in the Z-axis direction. The mounting hole 211 is a strip hole, and the strip hole is vertically arranged, thereby avoiding the installation of the hook 413 closer to the side plate 2, avoiding the installation of the mounting hole 211 on the top cover plate 1, making the installation of the hook 413 occupy the position of the middle area of ​​the air duct machine, and reasonably utilizing the space inside the air duct machine close to the side plate 2 area.

[0060] In an embodiment of the present invention, Figure 3 As shown, the protruding structure 5 includes a second protruding structure 11, the second protruding structure 11 is connected to the top cover plate 1, and the positioning pin 412 and / or the positioning hole 111 are located on the second protruding structure 11. Here, when the positioning hole 111 is provided on the protruding structure 5, the positioning hole 111 is located on the second protruding structure 11; when the positioning pin 412 is provided on the protruding structure 5, the positioning pin 412 is located on the second protruding structure 11.

[0061] The advantage of such a configuration is that, by providing the second protruding structure 11 on the top cover plate 1 and installing the positioning pin 412 and / or the positioning hole 111 on the top cover plate 1, the cooperation between the positioning pin 412 and the positioning hole 111 is closer to the top cover plate 1, so that the center position of the mounting plate 41 can be positioned without occupying the space in the center area of ​​the air duct machine. In addition, the mounting plate 41 simultaneously fixes the top cover plate 1 and the side plate 2, thereby enhancing the overall structure of the air duct machine.

[0062] In an embodiment of the present invention, Fig.11 As shown, a guide slot 22 is provided on the side plate 2 , and a guide column 414 is provided on the mounting plate 41 , and the guide column 414 is slidably connected to the guide slot 22 .

[0063] It should be noted that there are two side plates 2, which are respectively arranged on the left and right sides of the volute assembly 4, and the guide grooves 22 are respectively arranged on the side plates 2. The guide pillars 414 are inserted into the guide grooves 22 along the Y-axis direction, and the guide pillars 414 can slide along the length direction of the guide grooves 22. When installing the volute assembly 4, the guide pillars 414 are first matched with the guide grooves 22, and then the volute assembly 4 is pushed to move along the guide grooves 22 until the volute assembly 4 is connected to the protruding structure 5.

[0064] Thus, through the arrangement of the guide slot 22 and the guide column 414, when the volute assembly 4 is installed, the guide slot 22 can support the volute assembly 4, and the volute assembly 4 can be pushed into the installation position along the guide slot 22, so that the volute assembly 4 is connected to the protruding structure 5. In addition, when cleaning the evaporator, the volute assembly 4 only needs to be slid along the guide slot to a suitable distance away from the evaporator 3, and the evaporator 3 can be cleaned by extending the cleaning water gun into the air duct machine, thereby avoiding the complete disassembly of the volute assembly 4.

[0065] In an embodiment of the present invention, Fig.12 As shown, the guide groove 22 includes a strip groove 221, a guide groove 222 and a limit groove 223 which are interconnected in sequence; the limit groove 223 is inclined or vertically arranged relative to the strip groove 221; the guide groove 222 is used for guiding the guide column 414 from the strip groove 221 to the limit groove 223; the limit groove 223 has a first position for installing the volute assembly 4 on the protruding structure 5.

[0066] It should be noted that the angle between the strip groove 221 and the limiting groove 223 is between 90° and 150°. Preferably, the strip groove 221 is arranged horizontally or along the X-axis direction, and the limiting groove 223 is arranged along the Y-axis direction. The guide groove 222 can be an arc groove or an oblique groove, and the two ends of the guide groove 222 are respectively connected to the strip groove 221 and the limiting groove 223. When the volute assembly 4 is installed on the protruding structure 5, the guide column 414 cooperates with the limiting groove 223 at the same time to realize the positioning of the volute assembly 4 in the X-axis direction. In order to avoid the jamming of the hook 413 on the mounting plate 41 when inserting into the mounting hole 211, the guide groove 222 is provided so that the hook can be smoothly inserted into the mounting hole 211 during installation. When installing the volute assembly 4, the volute assembly 4 is pushed to move along the strip groove 221 until it slides to the limit groove 223 through the guide groove 222. The first position refers to the position of the guide column 414 in the limit groove 223 when the mounting plate 41 is connected to the protruding structure. Preferably, the first position is the position of the lowermost end of the limit groove 223, so that the limit groove 223 and the guide column 414 can form a support for the volute assembly 4.

[0067] The advantage of such a configuration is that, through the configuration of the guide groove 222 , the guiding of the guide column 414 from the strip groove 221 to the limiting groove 223 is achieved; and through the configuration of the limiting groove 223 , the limiting of the volute assembly 4 is achieved.

[0068] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A duct machine, comprising: A top cover plate (1), a side plate (2) and a volute assembly (4), characterized in that a protruding structure (5) is provided on the top cover plate (1) and the side plate (2), the protruding structure (5) protruding toward the interior of the air duct machine, the volute assembly (4) and the protruding structure (5) are detachably connected, the volute assembly (4) comprises a mounting plate (41) for mounting a volute (42), the mounting plate (41) is provided with a through hole, the through hole is connected to the air outlet of the volute (42), the mounting plate (41) and the protruding structure (5) are detachably connected, the protruding structure (5) is provided with a mounting hole (211), the mounting plate (41) is provided with a hook (413), the hook (413) cooperates with the mounting hole (211).

2. The air duct machine according to claim 1, characterized in that: The protruding structure (5) comprises a rib-like structure or a hollow structure.

3. The air duct machine according to claim 1, characterized in that: The protruding structure (5) comprises a groove-shaped structure, wherein two opposite side walls of the groove-shaped structure are respectively connected to the top cover plate (1) and / or the side plate (2).

4. The air duct machine according to claim 1, characterized in that: A positioning pin (412) is provided on the mounting plate (41), a positioning hole (111) is provided on the protruding structure (5), and the positioning pin (412) matches the positioning hole (111); And / or a positioning hole (111) is provided on the mounting plate (41), a positioning pin (412) is provided on the protruding structure (5), and the positioning pin (412) matches the positioning hole (111).

5. The air duct machine according to claim 1, characterized in that: The protruding structure (5) comprises a first protruding structure (21), the first protruding structure (21) is connected to the side plate (2), and the mounting hole (211) is located on the first protruding structure (21).

6. The air duct machine according to claim 4, characterized in that: The protruding structure (5) comprises a second protruding structure (11), the second protruding structure (11) being connected to the top cover plate (1), and the positioning pin (412) and / or the positioning hole (111) being located on the second protruding structure (11).

7. The air duct machine according to claim 1, characterized in that: The protruding structure (5) is integrally connected to the top cover plate (1) or the side plate (2).

8. The air duct machine according to claim 1, characterized in that: A guide slot (22) is provided on the side plate (2), a guide column (414) is provided on the mounting plate (41), and the guide column (414) is slidably connected to the guide slot (22).

9. The air duct machine according to claim 8, characterized in that: The guide groove (22) comprises a strip groove (221), a guide groove (222) and a limit groove (223) which are sequentially connected to each other; the limit groove (223) is arranged obliquely or vertically relative to the strip groove (221); the guide groove (222) is used for guiding the guide column (414) from the strip groove (221) to the limit groove (223); the limit groove (223) has a first position for mounting the volute assembly (4) on the protruding structure (5).

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