阅读说明：本技术 风管机 (Air duct machine ) 是由 谢斌 王成 杨亮 杜伟 李颖颖 黄坤鹏 范超 张磊 于 2020-05-29 设计创作，主要内容包括：本发明涉及空调技术领域,具体涉及一种风管机。本发明所述风管机包括：顶盖板、侧板和蜗壳组件,所述顶盖板和/或所述侧板上设置有凸起结构,所述凸起结构向所述风管机内部凸出,所述蜗壳组件与所述凸起结构可拆卸连接。由此,通过在所述顶盖板上设置凸起结构,对所述顶盖板的结构进行增强；通过在所述侧板上设置凸起结构,对所述侧板的结构进行增强。将所述蜗壳组件安装于所述凸起结构上,可以避免在所述风管机中设置隔板,也避免了在拆装时对隔板的拆装,更加方便。同时,也降低了原材料成本,提高了拆装效率。通过所述凸起结构形成与所述蜗壳组件的直接接触面,便于拆装。(The invention relates to the technical field of air conditioners, in particular to an air duct machine. The air duct machine of the invention comprises: the top cover plate and/or the side plate is provided with a protruding structure, the protruding structure protrudes towards the interior of the air duct machine, and the volute component is detachably connected with the protruding structure. Therefore, the structure of the top cover plate is enhanced by arranging the convex structure on the top cover plate; the structure of the side plate is enhanced by arranging the protruding structure on the side plate. Will the spiral case subassembly install in on the protruding structure, can avoid setting up the baffle in the tuber pipe machine, also avoided the dismouting to the baffle when the dismouting, it is more convenient. Meanwhile, the cost of raw materials is reduced, and the disassembly and assembly efficiency is improved. The direct contact surface with the volute component is formed through the convex structure, so that the volute component is convenient to disassemble and assemble.)

1. A ducted air conditioner comprising: top apron (1), curb plate (2) and spiral case subassembly (4), its characterized in that, top apron (1) and/or be provided with protruding structure (5) on curb plate (2), protruding structure (5) to the inside protrusion of tuber pipe machine, spiral case subassembly (4) with protruding structure (5) can be dismantled and be connected.

2. The ducted air conditioner according to claim 1, wherein the protruding structure (5) comprises a rib-like structure or a hollow structure.

3. The ducted air conditioner according to claim 1, wherein the projection structure (5) comprises a channel structure having opposite side walls connected to the roof panel (1) and/or the side panel (2), respectively.

4. The ducter of claim 1, wherein the volute assembly (4) includes a mounting plate (41) for mounting a volute (42), the mounting plate (41) being removably connected to the boss structure (5).

5. The ducted air conditioner according to claim 4, wherein the protruding structure (5) has a mounting hole (211), the mounting plate (41) has a hook (413), and the hook (413) is engaged with the mounting hole (211).

6. The ducted air conditioner according to claim 4 or 5, wherein the mounting plate (41) is provided with a positioning pin (412), the protruding structure (5) is provided with a positioning hole (111), and the positioning pin (412) is matched with the positioning hole (111);

and/or the mounting plate (41) is provided with a positioning hole (111), the protruding structure (5) is provided with a positioning pin (412), and the positioning pin (412) is matched with the positioning hole (111).

7. The ducted air conditioner according to claim 5, wherein the boss structure (5) includes a first boss structure (21), the first boss structure (21) is connected to the side plate (2), and the mounting hole (211) is located on the first boss structure (21).

8. The ducted air conditioner according to claim 6, wherein the protruding structure (5) comprises 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/is located on the second protruding structure (11).

9. The ducted air conditioner according to claim 1, wherein the projection structure (5) is integrally connected to the roof panel (1) or the side panel (2).

10. The ducted air conditioner according to claim 4, wherein the side plate (2) is provided with a guide chute (22), the mounting plate (41) is provided with a guide post (414), and the guide post (414) is slidably connected with the guide chute (22).

11. The ducter according to claim 10, wherein the guide chute (22) includes a strip-shaped groove (221), a guide groove (222), and a limiting groove (223) that are sequentially communicated with each other, and the limiting groove (223) is inclined or vertically arranged with respect to the strip-shaped groove (221); the guide groove (222) is used for guiding the guide post (414) from the strip-shaped groove (221) to the limiting groove (223); the limiting groove (223) has a first position where the volute component (4) is mounted on the boss structure (5).

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air duct machine.

Background

Generally, a partition plate is arranged inside the ducted air conditioner, a volute assembly is mounted on the partition plate, and when an evaporator of an air conditioner is maintained, the partition plate needs to be removed, so that unnecessary trouble in removing the ducted air conditioner is caused, and after the partition plate is removed, the strength of the ducted air conditioner is lowered, and deformation is easily caused.

Disclosure of Invention

The problem to be solved by the present invention is to provide a ducted air conditioner that solves at least one of the above mentioned technical problems.

To solve the above problems, the present invention provides a duct type air conditioner, including: the top cover plate and/or the side plate is provided with a protruding structure, the protruding structure protrudes towards the interior of the air duct machine, and the volute component is detachably connected with the protruding structure.

Therefore, the structure of the top cover plate is enhanced by arranging the convex structure on the top cover plate; the structure of the side plate is enhanced by arranging the protruding structure on the side plate. Will the spiral case subassembly install in on the protruding structure, can avoid setting up the baffle in the tuber pipe machine, also avoided the dismouting to the baffle when the dismouting, it is more convenient. Meanwhile, the cost of raw materials is reduced, and the disassembly and assembly efficiency is improved. The direct contact surface with the volute component is formed through the convex structure, so that the volute component is convenient to disassemble and assemble.

Optionally, the raised structure comprises a ribbed structure or a hollow structure.

Therefore, the protruding structure is arranged to be a rib-shaped structure or a hollow structure, processing of the protruding structure is facilitated, and on the other hand, the top cover plate and/or the side plates can be reinforced.

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

Therefore, the protruding structures are arranged into groove-shaped structures, and two side walls of the groove-shaped structures are respectively connected with the top cover plate and/or the side plates, so that the top cover plate and/or the side plates are reinforced.

Optionally, the volute assembly includes a mounting plate for volute mounting, the mounting plate being removably connected to the boss structure.

Therefore, the volute is arranged on the mounting plate through the arrangement of the mounting plate, and then the mounting plate is connected with the protruding structure, so that the volute is prevented from being directly arranged on the mounting plate, and the structural enhancement of the volute can be realized through the mounting plate.

Optionally, the protruding structure is provided with a mounting hole, the mounting plate is provided with a hook, and the hook is matched with the mounting hole.

Therefore, the volute component is hung on the protruding structure through the matching of the clamping hook and the mounting hole, and the volute component is convenient to detach.

Optionally, a positioning pin is arranged on the mounting plate, a positioning hole is formed in the protruding structure, and the positioning pin is matched with the positioning hole;

and/or the mounting plate is provided with a positioning hole, the bulge structure is provided with a positioning pin, and the positioning pin is matched with the positioning hole.

Therefore, the mounting plate is positioned on the protruding structure through the arrangement of the positioning pin and the positioning hole. In addition, the positioning pin is matched with the clamping hook, so that the mounting plate can be positioned in multiple directions such as XYZ.

Optionally, the protruding structure includes a first protruding structure, the first protruding structure is connected to the side plate, and the mounting hole is located on the first protruding structure.

Therefore, the installation of the clamping hook can be prevented from being closer to the side plate, the installation hole is prevented from being formed in the top cover plate, the installation of the clamping hook is enabled to occupy the position of the middle area of the air duct machine, and the space, close to the side plate area, in the air duct machine is reasonably utilized.

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/is located on the second protrusion structure.

Therefore, the second protruding structure is arranged on the top cover plate, and the positioning pin and/or the positioning hole are/is arranged on the top cover plate, so that the positioning pin and the positioning hole are matched closer to the top cover plate, and the central position of the mounting plate can be positioned while the space of the central area of the air duct machine is not occupied. In addition, the mounting plate simultaneously fixes the top cover plate and the side plates, so that the overall structure of the air duct machine is enhanced.

Optionally, the protruding structure is integrally connected with the top cover plate or the side plate.

Therefore, the integrally connected structure facilitates processing and forming, and meanwhile, the stability of fixing the mounting plate can be improved.

Optionally, a guide chute is formed in the side plate, a guide pillar is arranged on the mounting plate, and the guide pillar is slidably connected with the guide chute.

Therefore, the second protruding structure is arranged on the top cover plate, and the positioning pin and/or the positioning hole are/is arranged on the top cover plate, so that the positioning pin and the positioning hole are matched closer to the top cover plate, and the central position of the mounting plate can be positioned while the space of the central area of the air duct machine is not occupied. In addition, the mounting plate simultaneously fixes the top cover plate and the side plates, so that the overall structure of the air duct machine is enhanced.

Optionally, the guide chute comprises a strip-shaped groove, a guide groove and a limiting groove which are sequentially communicated with each other, and the limiting groove is inclined or vertically arranged relative to the strip-shaped groove; the guide groove is used for guiding the guide pillar from the strip-shaped groove to the limiting groove; the limiting groove has a first position where the volute component is mounted on the boss structure.

Therefore, the guide of the guide post from the strip-shaped groove to the limiting groove is realized through the arrangement of the guide groove; through the arrangement of the limiting groove, the limitation of the volute component is realized.

Drawings

FIG. 1 is an exploded view of a ducted air conditioner in an embodiment of the present invention;

FIG. 2 is an isometric view of a ducted air conditioner in an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the present invention at A in FIG. 2;

FIG. 4 is a schematic structural view of a volute assembly in an embodiment of the invention;

FIG. 5 is an enlarged view of a portion of the present invention at B in FIG. 4;

FIG. 6 is a rear view of the volute assembly in an embodiment of the present invention;

FIG. 7 is an enlarged fragmentary view at C of FIG. 6 of the present invention;

FIG. 8 is a schematic structural diagram of a top cover plate according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a side panel according to an embodiment of the present invention;

FIG. 10 is an enlarged fragmentary view of the invention at D in FIG. 9;

FIG. 11 is a schematic structural view of a side plate according to another embodiment of the present invention;

fig. 12 is a partial enlarged view of the present invention at E in fig. 11.

Description of reference numerals:

1-top cover plate, 2-side plate, 3-evaporator, 4-volute component, 5-bulge structure, 11-second bulge structure, 21-first bulge 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 and 414-guide post.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In addition, all directions or positional relationships mentioned in the embodiments of the present invention are positional relationships based on the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not imply or imply that the referred device or element must have a specific orientation, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the drawings of the present specification, an XYZ coordinate system is provided, in which a forward direction of an X axis represents a forward direction, a reverse direction of the X axis represents a backward direction, a forward direction of a Y axis represents a right direction, a reverse direction of the Y axis represents a left direction, a forward direction of a Z axis represents an upward direction, and a reverse direction of the Z axis represents a downward direction, wherein "left", "right", "upper", and "lower" do not constitute a limitation on a specific structure, and are based on only positions in the drawings. In this specification, unless otherwise specifically stated or limited, the up-down direction coincides with the up-down direction in which the ducted air conditioner is actually installed, that is, coincides with the Z-axis direction in the drawings.

In the description herein, references to the terms "an embodiment," "one embodiment," and "one implementation," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or implementation is included in at least one embodiment or example implementation of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

One embodiment of the present invention provides a ducted air conditioner, as shown in fig. 1-3, 8 and 9, comprising: top apron 1, curb plate 2 and spiral case subassembly 4, top apron 1 and/or be provided with protruding structure 5 on the curb plate 2, protruding structure 5 to the inside protrusion of tuber pipe machine, spiral case subassembly 4 with protruding structure 5 can dismantle the connection.

It should be noted that an evaporator 3 is arranged inside the duct type air conditioner, and the protruding structure 5 may be integrally connected with the top cover plate 1 or the side plate 2. The volute component 4 and the protruding structure 5 are provided with connecting structures which are matched with each other respectively, so that the volute component 4 is installed on the protruding structure 5. In one embodiment of the present invention, the boss structure 5 includes a first boss structure 21, the first boss structure 21 is connected to the side plate 2, and the scroll assembly 4 is screwed or snapped to the first boss 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 component 4 is screwed or snapped 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 scroll assembly 4 is screwed or snapped to the first protruding structure 21 and the second protruding structure 11.

The advantage of this arrangement is that the structure of the roof panel 1 is enhanced by providing the raised structure 5 on the roof panel 1; the structure of the side plate 2 is enhanced by providing a raised structure 5 on the side plate 2. Will spiral case subassembly 4 install in on the protruding structure, can avoid setting up the baffle in the tuber pipe machine, also avoided the dismouting to the baffle when the dismouting, it is more convenient. Meanwhile, the cost of raw materials is reduced, and the disassembly and assembly efficiency is improved. The convex structure 5 forms a direct contact surface with the volute component 4, so that the assembly and disassembly are convenient.

In the embodiment of the present invention, the protrusion structure 5 is integrally connected to the top cover plate 1 or the side plate 2. That is, when the projection structure 5 is disposed on the roof panel 1, the projection structure 5 is integrally connected with the roof panel 1; when the protruding structure 5 is disposed on the side plate 2, the protruding structure 5 is integrally connected with the side plate 2. Through the structure of body coupling, the machine-shaping of being convenient for can improve simultaneously the fixed stability of mounting panel 41.

In an embodiment, the protruding structure 5 includes a rib structure, the rib structure is perpendicular to the top cover plate 1 or the side plate 2, the volute component 4 and the rib structure are respectively provided with a connecting structure respectively matched with each other, so that the volute component 4 is mounted on the protruding structure 5. In one embodiment, the protruding structure 5 comprises a hollow structure, that is, the interior of the protruding structure 5 is a cavity structure. Therefore, the protruding structure is arranged to be a rib-shaped structure or a hollow structure, processing of the protruding structure is facilitated, and on the other hand, the top cover plate and/or the side plates can be reinforced.

In one embodiment, as shown in fig. 3, the protruding structure 5 includes a groove-shaped structure, two opposite side walls of the groove-shaped structure are connected with the top cover plate 1 and/or the side plate 2, the groove-shaped structure is located on one side of the top cover plate 1 or the side plate 2 close to the inside of the ducted air conditioner, an opening of the groove-shaped structure faces the outside of the ducted air conditioner, and the side wall of the groove-shaped structure connected with the top cover plate 1 and/or the side plate 2 is arranged along the Z-axis direction. And the volute component 4 and the side wall of the groove-shaped structure are respectively provided with a connecting structure which is matched with each other, so that the volute component 4 is arranged on the convex structure 5. Therefore, the protruding structures are arranged into groove-shaped structures, and two side walls of the groove-shaped structures are respectively connected with the top cover plate and/or the side plates, so that the top cover plate and/or the side plates are reinforced. In an embodiment of the present invention, as shown in fig. 1 and 4, the volute component 4 comprises a mounting plate 41 for mounting the volute 42, and the mounting plate 41 is detachably connected with the projection structure 5. The mounting plate 41 is provided with a through hole, and the through hole is connected with an air outlet of the volute 42. Here, the scroll casing 42 and the mounting plate 41 may be integrally formed or detachably connected. The mounting plate 41 and the protruding structure 5 are respectively provided with a connecting structure matched with each other, so that the volute component 4 is mounted on the protruding structure 5. A water pan is arranged below the evaporator 3, a certain distance is reserved 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 larger than the thickness of the water pan, and the water pan can slide along the bottom plate. When the water pan needs to be cleaned, the mounting plate can be prevented from being disassembled, and the water pan can be directly drawn out through the gap between the mounting plate 41 and the bottom plate.

Therefore, the volute casing 42 is mounted on the mounting plate 41 through the mounting plate 41, and then the mounting plate 41 is connected with the protruding structure 5, so that the volute casing 42 is not directly mounted on the mounting plate 41, and the structure of the volute casing 42 can be enhanced through the mounting plate 41.

In the embodiment of the present invention, as shown in fig. 3 to 7, the protruding structure 5 is provided with a mounting hole 211, the mounting plate 41 is provided with a hook 413, and the hook 413 is matched with the mounting hole 211.

It should be noted that the protruding structure 5 protrudes toward the interior of the wind pipe machine, 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. Protruding structure 5 is protruding muscle structure, protruding muscle has been seted up structurally mounting hole 211, or protruding structure 5 is the groove-shaped structure, the groove-shaped structure is close to seted up on the lateral wall of mounting panel 41 one side mounting hole 211, pothook 413 is located mounting panel 41 is close to protruding structure 5 one side, pothook 413 passes mounting hole 211 with the edge cooperation of mounting hole 211 forms spacingly, realizes mounting panel 41 is at the ascending location of X side, as shown in fig. 5, pothook 413 is L shape structure, mounting hole 211 is the bar hole, the length direction in bar hole sets up along Z axle direction. The fastening gap of the hook 413 is d, the fastening gap is the distance from the inner side surface of the hook 413 to the mounting plate body 411, and the fastening gap d is between 0.5 and 1.5 mm.

This has the advantage that the engagement of the hooks 413 with the mounting holes 211 allows the volute component 4 to be hung on the projection structure 5, thereby facilitating the disassembly of the volute component 4.

As shown in fig. 3 to 7, the mounting plate 41 is provided with a positioning pin 412, the protruding structure 5 is provided with a positioning hole 111, and the positioning pin 412 is matched with the positioning hole 111.

It should be noted that the protrusion structure 5 is a rib structure, the positioning hole 111 is formed in the rib structure, or the protrusion structure 5 is a groove structure, the positioning hole 111 is formed in a side wall of the groove structure close to one side of the mounting plate 41, the positioning pin 412 is located at one side of the mounting plate 41 close to the protrusion structure 5, the shape and size of the positioning hole 111 are the same as the cross-sectional shape of the positioning pin 412, as shown in fig. 5, the positioning pin 412 protrudes out of the mounting plate 41, and when the mounting plate 41 is hung on the protrusion structure 5, the positioning pin 412 is inserted into the mounting hole 211 to form positioning. In an embodiment of the present invention, the mounting plate 41 is provided with a positioning hole 111, the protruding structure 5 is provided with a positioning pin 412, and the positioning pin 412 is matched with 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 that the hook 413 cannot slide out of the mounting hole 211 due to the excessive length of the positioning pin 412. 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 mm and 1mm, so as to avoid inaccurate positioning caused by too large gap and resulting in the shaking of the volute component 4.

This has the advantage that the positioning of the mounting plate 41 on the raised structure 5 is achieved by the positioning pins 412 and the positioning holes 111. Further, the positioning pins 412 are engaged with the hooks 413, thereby positioning the mounting plate 41 in multiple directions such as XYZ.

In the embodiment of the present invention, as shown in fig. 3, 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, mounting hole 211 be used for with pothook 413 is connected, and pothook 413 with the mounting hole 211 cooperation needs provide great displacement space in the Z axle direction, mounting hole 211 is the bar hole, the vertical setting in bar hole, from this, can avoid making the installation of pothook 413 more be close to in curb plate 2, avoid with mounting hole 211 set up in on the lamina tecti 1, make the installation of pothook 413 occupies the position of ducted machine's middle zone, the rational utilization the inside space that is close to of ducted machine 2 is regional.

In the embodiment of the present invention, as shown in fig. 3, 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 protruding structure 5 is provided with a positioning hole 111, the positioning hole 111 is located on the second protruding structure 11; when the positioning pin 412 is disposed on the protruding structure 5, the positioning pin 412 is located on the second protruding structure 11.

This arrangement is advantageous in that, by providing the second projection 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 positioning pin 412 and the positioning hole 111 are fitted 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 ducted air conditioner. In addition, the mounting plate 41 simultaneously fixes the top cover plate 1 and the side plates 2, so that the overall structure of the air duct machine is enhanced.

In the embodiment of the present invention, as shown in fig. 11, a sliding guide slot 22 is formed on the side plate 2, a guide post 414 is disposed on the mounting plate 41, and the guide post 414 is slidably connected to the sliding guide slot 22.

It should be noted that there are two side plates 2, the two side plates 2 are respectively disposed on the left and right sides of the volute component 4, the side plates 2 are respectively provided with the guiding and sliding groove 22, the guiding post 414 is inserted into the guiding and sliding groove 22 along the Y-axis direction, and the guiding post 414 can slide along the length direction of the guiding and sliding groove 22. When the volute component 4 is installed, the guide post 414 is first engaged with the guiding slot 22, and then the volute component 4 is pushed to move along the guiding slot 22 until the volute component 4 is connected with the protruding structure 5.

Therefore, through the arrangement of the guiding chute 22 and the guiding post 414, when the volute component 4 is mounted, the guiding chute 22 can support the volute component 4, and the volute component 4 can be pushed to a mounting position along the guiding chute 22, so that the volute component 4 is connected with the protruding structure 5. In addition, when the cleaning of the evaporator is carried out, only the volute component 4 needs to be arranged along the guide chute and far away from one side of the evaporator 3 slides for a proper distance, and the water gun can stretch into the air pipe machine to clean the evaporator 3 to avoid completely disassembling the volute component 4.

In the embodiment of the present invention, as shown in fig. 12, the sliding guide slot 22 includes a strip-shaped slot 221, a guide slot 222, and a limiting slot 223, which are sequentially communicated with each other; the limiting groove 223 is inclined or vertical to the strip-shaped groove 221; the guide groove 222 is used for guiding the guide post 414 from the strip-shaped groove 221 to the limiting groove 223; the limiting groove 223 has a first position where the volute component 4 is mounted on the boss structure 5.

It should be noted that, the included angle between the strip-shaped groove 221 and the limiting groove 223 is between 90 degrees and 150 degrees, preferably, the strip-shaped groove 221 is horizontally disposed or disposed along the X-axis direction, the limiting groove 223 is disposed along the Y-axis direction, the guide groove 222 may be an arc-shaped groove or a chute, and two ends of the guide groove 222 are respectively communicated with the strip-shaped groove 221 and the limiting groove 223. When the volute component 4 is mounted on the protruding structure 5, the guide post 414 is simultaneously matched with the limiting groove 223, so as to position the volute component 4 in the X-axis direction. In order to prevent the hook 413 of the mounting plate 41 from being caught by the mounting hole 211, the guide groove 222 is provided so that the hook can be smoothly caught by the mounting hole 211 when mounting. When the volute component 4 is installed, the volute component 4 is pushed to move along the strip-shaped groove 221 until the guiding groove 222 slides to the limiting groove 223. The first position refers to the position of the guide post 414 in the retaining groove 223 when the mounting plate 41 is coupled to the raised structure. Preferably, the first position is a lowest position of the limiting groove 223, so that the limiting groove 223 and the guide post 414 can form a support for the scroll casing assembly 4.

The advantage of this arrangement is that the guide of the guide post 414 from the strip-shaped groove 221 to the limiting groove 223 is realized by the arrangement of the guide groove 222; the limiting groove 223 is arranged to limit the volute component 4.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.