Dust collector

Abstract

The application relates to a dust collector, which comprises a dust collector main body, a cover arranged at the upper end of the dust collector main body and a motor arranged on the cover, the motor comprises a motor main body and a fan arranged at one side of the motor main body, the motor has an air inlet side and an air outlet side, a ventilation cavity is arranged in the cover, a wind guide is arranged in the ventilation cavity, the wind guide divides the ventilation cavity into an air inlet cavity and an air outlet cavity, the air inlet cavity is communicated with the air inlet side of the motor, and the air inlet cavity is provided with an air inlet communicated with the outside; the air outlet cavity is communicated with the air outlet side of the motor, and the air outlet cavity is provided with an air outlet communicated with the outside. The dust collector provided by the application is provided with the wind guide, so that the ventilation cavity in the cover is divided into the air inlet cavity and the air outlet cavity, the air inlet cavity and the air outlet cavity are not communicated, the cold air before heat exchange and the hot air after heat exchange cannot flow into each other, and the cooling effect of the motor is greatly improved.

Description

Technical Field

[0001] This application relates to the field of cleaning appliance technology, and in particular to a vacuum cleaner. Background Technology

[0002] With economic development and improved living standards, vacuum cleaners have become widely used. Currently, vacuum cleaners are mainly divided into dry and wet types. Dry vacuum cleaners only have a vacuuming function, primarily used for collecting dry debris such as dust and particles, while wet vacuum cleaners are mainly designed for cleaning damp or wet surfaces. Wet vacuum cleaners typically have a cylindrical body with a cover on top, and the motor is mounted on the cover. The motor generates a lot of heat during high-speed operation, requiring cooling. Therefore, the motor usually includes a motor body and a fan located on one side of the motor body, blowing out cool air to dissipate heat. However, when the fan is working, outside air first enters the inner cavity of the cover, then enters from the motor's air intake side, passes through the motor body, and becomes hot air, which is then exhausted from the motor's air outlet side. The exhausted hot air returns to the inner cavity of the cover and is then exhausted to the outside. The interaction between cool and hot air within the inner cavity of the cover affects the motor's cooling effect. Summary of the Invention

[0003] Therefore, it is necessary to provide a vacuum cleaner that can improve the cooling effect of the motor.

[0004] This application provides a vacuum cleaner, including a vacuum cleaner body, a cover disposed on the upper end of the vacuum cleaner body, and a motor disposed on the cover. The motor includes a motor body and a fan disposed on one side of the motor body. The motor has an air inlet side and an air outlet side. A ventilation cavity is provided inside the cover. An air guide is provided inside the ventilation cavity. The air guide divides the ventilation cavity into an air inlet cavity and an air outlet cavity. The air inlet cavity is connected to the air inlet side of the motor and has an air inlet that communicates with the outside. The air outlet cavity is connected to the air outlet side of the motor and has an air outlet that communicates with the outside.

[0005] In one embodiment, the cover includes a lower cover and an upper cover, the lower cover being connected to the vacuum cleaner body, the upper cover being connected to the lower cover, and the upper cover and the lower cover enclosing the ventilation cavity.

[0006] In one embodiment, the lower cover has a first wall that surrounds the ventilation cavity, and the air guide is integrally formed on the first wall and extends toward the inner wall of the upper cover.

[0007] In one embodiment, the lower cover is provided with a first through hole and a second through hole penetrating the first wall surface, the air guide is disposed between the first through hole and the second through hole to separate the first through hole and the second through hole, the motor is installed at the first through hole, the air inlet side of the motor is connected to the air inlet cavity through the first through hole, and the air outlet side of the motor is connected to the air outlet cavity through the second through hole.

[0008] In one embodiment, the air guide includes a main body and extensions at both ends of the main body. The main body is arc-shaped and protrudes toward the air outlet cavity. The two extensions extend from one end connected to the main body toward the other end in a direction away from each other.

[0009] In one embodiment, the lower cover is provided with a vortex-shaped exhaust duct, the first through hole and the second through hole are both provided in the inner ring of the exhaust duct, and the extension of the air guide is connected to the outer wall of the exhaust duct.

[0010] In one embodiment, the first wall portion is recessed towards the vacuum cleaner body to form an annular groove. A mounting portion is formed inside the groove. The mounting portion has a first top wall and a first side wall surrounding the first top wall. The motor is mounted in the space enclosed by the first top wall and the first side wall. The first through hole is opened in the first top wall. The air guide is connected to the first top wall and extends to the bottom wall of the groove. The air guide divides the groove into a first slot and a second slot. The first slot communicates with the air inlet chamber, and the second slot communicates with the air outlet chamber. The second through hole is opened in the first side wall and communicates with the second slot.

[0011] In one embodiment, the lower cover includes a lower cover body and a lower cover accessory. The lower cover body is connected to the vacuum cleaner body, the upper cover is connected to the lower cover body, the lower cover accessory is connected to the side of the lower cover body facing the upper cover, the motor is mounted on the lower cover body, and the air guide is integrally formed on the lower cover accessory.

[0012] In one embodiment, the lower cover body has a mounting cavity, the motor is mounted in the mounting cavity, the mounting cavity has an opening on the side facing the upper cover, the lower cover accessory is mounted at the opening of the mounting cavity and covers the opening of the mounting cavity, the lower cover accessory has a first connecting port and a second connecting port, the first connecting port connects the air inlet cavity and the air inlet side of the motor, the second connecting port connects the air outlet side of the motor and the air outlet cavity, the air guide is disposed between the first connecting port and the second connecting port and extends into the inner wall of the upper cover.

[0013] In one embodiment, the end of the second communication port that connects to the air outlet cavity faces the air guide.

[0014] In one embodiment, the air guide is configured as a plate-shaped structure, extending from the lower cover to the upper cover, and the inner wall of the upper cover is provided with a mating plate, which abuts against the edge of the air guide.

[0015] Compared with the prior art, the vacuum cleaner provided in this application, by setting an air guide component, divides the ventilation cavity inside the cover into an air inlet cavity and an air outlet cavity, and the air inlet cavity and the air outlet cavity are not connected, so that the cold air before heat exchange and the hot air after heat exchange will not flow into each other, which greatly improves the cooling effect of the motor. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a vacuum cleaner according to an embodiment of this application;

[0018] Figure 2 This is a perspective view of a motor according to an embodiment of this application;

[0019] Figure 3 This is a perspective view of a cover with a motor installed inside, according to an embodiment of this application.

[0020] Figure 4 for Figure 3 Side view of the structure shown;

[0021] Figure 5 for Figure 4 Cross-sectional view along line AA;

[0022] Figure 6 for Figure 3 A 3D view of the structure with the top cover removed;

[0023] Figure 7 for Figure 6 A schematic diagram of the structure shown from another perspective;

[0024] Figure 8 This is a perspective view of the lower cover according to an embodiment of this application;

[0025] Figure 9 This is a perspective view of the top cover according to an embodiment of this application;

[0026] Figure 10 This is an exploded view of a cover housing an internally mounted motor, according to another embodiment of this application.

[0027] Figure 11 for Figure 10 The side view of the structure in its assembled state;

[0028] Figure 12 for Figure 11 A cross-sectional view along line BB.

[0029] Reference numerals: 10, Vacuum cleaner body; 20, Cover; 21, Air inlet cavity; 211, Air inlet; 22, Air outlet cavity; 222, Air outlet; 23, Lower cover; 231, First wall surface; 2311, Groove; 23111, First groove; 23112, Second groove; 2312, Mounting part; 23121, First top wall; 23122, First side wall; 232, First through hole; 233, Second through hole; 234, Exhaust duct; 235, Lower cover body; 2351, Mounting cavity; 236, Lower cover accessory; 2361, First connecting port; 2362, Second connecting port; 24, Upper cover; 241, Mating plate; 30, Motor; 31, Motor body; 32, Fan; 33, Air inlet side; 34, Air outlet side; 40, Air guide; 41, Main body; 42, Extension. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0035] Please see Figures 1 to 9 This application provides a vacuum cleaner, including a vacuum cleaner body 10, a cover 20 disposed on the upper end of the vacuum cleaner body 10, and a motor 30 disposed on the cover 20. The motor 30 includes a motor body 31 and a fan 32 disposed on one side of the motor body 31. Figures 5 to 7 (The fan is not shown in the motor shown). The motor 30 has an air inlet side 33 and an air outlet side 34. It can be understood that when the fan 32 is working, the cold air from the outside enters the motor 30 from the air inlet side 33. After the cold air exchanges heat with the motor body 31, it forms hot air and is discharged from the air outlet side 34.

[0036] The cover 20 has a ventilation cavity, and an air guide 40 is installed inside the ventilation cavity. The air guide 40 divides the ventilation cavity into an air inlet cavity 21 and an air outlet cavity 22. The air inlet cavity 21 is connected to the air inlet side 33 of the motor 30, and the air inlet cavity 21 has an air inlet 211 that communicates with the outside. The air outlet cavity 22 is connected to the air outlet side 34 of the motor 30, and the air outlet cavity 22 has an air outlet 222 that communicates with the outside. Thus, as... Figure 5As shown, when the motor 30 is working, the fan 32 blows air onto the motor body 31. Cold air from the outside (room temperature air) enters the air intake chamber 21 through the air inlet 211, and then enters the motor 30 from the air intake side 33. The cold air exchanges heat with the motor body 31 to form hot air. The hot air is discharged from the air outlet side 34 to the air outlet chamber 22, and then discharged into the outside atmosphere through the air outlet 222. This is understandable. Figure 5 The middle arrow indicates the airflow path. By setting the air guide 40, this application divides the ventilation cavity inside the cover 20 into an air inlet cavity 21 and an air outlet cavity 22, and the air inlet cavity 21 and the air outlet cavity 22 are not connected, so that the cold air before heat exchange and the hot air after heat exchange will not flow to each other, which greatly improves the cooling effect of the motor 30.

[0037] Furthermore, the cover 20 includes a lower cover 23 and an upper cover 24. The lower cover 23 is connected to the vacuum cleaner body 10, and the upper cover 24 is connected to the lower cover 23, with the upper cover 24 and the lower cover 23 forming a ventilation cavity. Thus, the cover 20 is divided into at least two parts, facilitating the installation of the motor 30 on the cover 20.

[0038] Further, please see Figure 5 , Figure 6 , Figure 7 and Figure 9 The air guide 40 is configured as a plate structure, extending from the lower cover 23 to the upper cover 24. The inner wall of the upper cover 24 has a mating plate 241 that abuts against the edge of the air guide 40. This design avoids gaps between the air guide 40 and the inner wall of the upper cover 24 caused by manufacturing errors, preventing air leakage between the air inlet chamber 21 and the air outlet chamber 22. It ensures that the air inlet chamber 21 and the air outlet chamber 22 are effectively separated by the air guide 40. Furthermore, the air guide 40, being a plate structure, is simple in design and easy to manufacture.

[0039] Furthermore, there are multiple ways in which the mating plate 241 and the air guide 40 abut against each other. It can be that the mating plate 241 and the end face of the air guide 40 abut against each other, or the mating plate 241 abuts against one side of the mating plate 241, or the mating plate 241 is provided with a groove, and the edge of the air guide 40 extends into the groove, so that both sides of the air guide 40 abut against the mating plate 241.

[0040] It is understood that the structural strength of the air guide 40 can be increased by increasing its thickness, thereby reducing the possibility of deformation. The air guide 40 can also be provided with reinforcing structures, such as reinforcing ribs, to enhance its structural strength and extend its service life; this application does not impose any limitations on this.

[0041] like Figures 3 to 5As shown, both the air inlet 211 and the air outlet 222 are located on the upper cover 24, resulting in a simpler structure and easier manufacturing. In this embodiment, two air inlets 211 and two air outlets 222 are provided, respectively located on opposite sides of the upper cover 24, thus minimizing interference between air intake and exhaust. Of course, the number of air inlets 211 and air outlets 222 can be one or more, and their positions are not limited to those described above, as long as the air inlet 211 is connected to the air intake cavity 21 and the air outlet 222 is connected to the air outlet cavity 22. Furthermore, the end of the air inlet 211 connected to the outside can be oriented downwards, and the end of the air outlet 222 connected to the outside can also be oriented downwards, ensuring that air intake or exhaust does not face the user, thereby avoiding a poor user experience.

[0042] Please see Figures 3 to 9 In one embodiment, the lower cover 23 has a first wall 231 that encloses the ventilation cavity, and the air guide 40 is integrally formed on the first wall 231 and extends toward the inner wall of the upper cover 24. In this way, the lower cover 23 and the air guide 40 only require one mold, reducing mold costs and thus helping to control the overall production cost of the vacuum cleaner.

[0043] Furthermore, the lower cover 23 is provided with a first through hole 232 and a second through hole 233 penetrating the first wall surface 231. The air guide 40 is disposed between the first through hole 232 and the second through hole 233 to separate the first through hole 232 and the second through hole 233. The motor 30 is installed at the first through hole 232. The air inlet side 33 of the motor 30 is connected to the air inlet chamber 21 through the first through hole 232, and the air outlet side 34 of the motor 30 is connected to the air outlet chamber 22 through the second through hole 233. This arrangement facilitates the installation of the motor 30 and ensures that the air guide 40 effectively separates the air inlet chamber 21 and the air outlet chamber 22.

[0044] Furthermore, the air guide 40 includes a main body 41 and extensions 42 located at both ends of the main body 41. The main body 41 is arc-shaped and protrudes towards the air outlet cavity 22. The two extensions 42 extend from one end connected to the main body 41 towards the other end in a direction away from each other. This ensures that both the air inlet cavity 21 and the air outlet cavity 22 have sufficient space, which is conducive to rapid airflow and heat dissipation of the motor 30. Moreover, the air guide 40 has a plate-like structure, which is very simple and easy to manufacture. Of course, the air guide 40 can also be of other shapes, as long as it can divide the ventilation cavity within the cover 20 into non-communicating air inlet cavity 21 and air outlet cavity 22.

[0045] Furthermore, the lower cover 23 is provided with a vortex-shaped exhaust duct 234. It can be understood that the motor body 31 is connected to a fan, and the motor body 31 drives the fan to achieve the dust collection function. The exhaust duct 234 serves as the exhaust duct for the fan. The first through hole 232 and the second through hole 233 are both located within the inner ring of the exhaust duct 234, and the extension 42 of the air guide 40 is connected to the outer wall of the exhaust duct 234. In this way, the space within the inner ring of the exhaust duct 234 can be fully utilized, making the overall structure of the vacuum cleaner very compact. The extension 42 of the air guide 40, connected to the outer wall of the exhaust duct 234, not only ensures effective separation between the air inlet chamber 21 and the air outlet chamber 22, but also strengthens the connection between the air guide 40 and the lower cover 23, thereby extending its service life.

[0046] The first wall surface 231 is recessed towards the vacuum cleaner body 10 to form an annular groove 2311. A mounting portion 2312 is formed inside the groove 2311. The mounting portion 2312 has a first top wall 23121 and a first side wall 23122 surrounding the first top wall 23121. The motor 30 is mounted within the space enclosed by the first top wall 23121 and the first side wall 23122. A first through hole 232 is formed in the first top wall 23121. An air guide 40 is connected to the first top wall 23121 and extends to the bottom wall of the groove 2311. The air guide 40 divides the groove 2311 into a first slot 23111 and a second slot 23112. The first slot 23111 communicates with the air inlet chamber 21, and the second slot 23112 communicates with the air outlet chamber 22. A second through hole 233 is formed in the first side wall 23122 and communicates with the second slot 23112. Thus, by recessing the first wall surface 231 to form a groove 2311 and a mounting part 2312, the installation space for the motor 30 is limited, making the motor 30 work more stably. At the same time, the connection area between the air guide 40 and the cover 20 is increased, thereby improving the connection strength between the air guide 40 and the cover 20, which helps to extend the service life.

[0047] Please see Figures 10 to 12 In another embodiment, the lower cover 23 includes a lower cover body 235 and a lower cover accessory 236. The lower cover body 235 is connected to the vacuum cleaner body 10, the upper cover 24 is connected to the lower cover body 235, and the lower cover accessory 236 is connected to the side of the lower cover body 235 facing the upper cover 24. The motor 30 is mounted on the lower cover body 235, and the air guide 40 is integrally formed on the lower cover accessory 236. Thus, the air guide 40 is independent of the lower cover body 235. Therefore, when the air guide 40 is damaged, only the lower cover accessory 236 needs to be replaced, instead of replacing the entire lower cover 23, making maintenance simpler and less costly.

[0048] Furthermore, the lower cover body 235 is provided with a mounting cavity 2351, in which the motor 30 is installed. The mounting cavity 2351 has an opening on the side facing the upper cover 24. The lower cover accessory 236 is installed at the opening of the mounting cavity 2351 and covers the opening of the mounting cavity 2351. The lower cover accessory 236 is provided with a first connecting port 2361 and a second connecting port 2362. The first connecting port 2361 connects the air inlet cavity 21 and the air inlet side 33 of the motor 30, and the second connecting port 2362 connects the air outlet side 34 of the motor 30 and the air outlet cavity 22. The air guide 40 is disposed between the first connecting port 2361 and the second connecting port 2362 and extends to the inner wall of the upper cover 24. In this way, by providing a mounting cavity 2351 in the lower cover body 235, the installation space for the motor 30 is limited, making the operation of the motor 30 more stable. Furthermore, by providing a first connecting port 2361 and a second connecting port 2362 on the lower cover fitting 236, and by placing the air guide 40 between the first connecting port 2361 and the second connecting port 2362, the air guide 40 effectively separates the air inlet chamber 21 and the air outlet chamber 22, and ensures that the air inlet chamber 21 is connected to the air inlet side 33 of the motor 30, and the air outlet chamber 22 is connected to the air outlet side 34 of the motor 30.

[0049] Furthermore, the end of the second connecting port 2362 that connects to the air outlet 22 faces the air guide 40. In this way, the hot air discharged from the motor 30 can be guided, the flow path of the hot air can be extended, and the flow velocity of the hot air can be reduced, thereby reducing the flow velocity of the hot air discharged from the air outlet 222 and preventing high-speed hot air from being sprayed towards the user or the ground.

[0050] Furthermore, the air guide 40 includes at least two sequentially connected flat plates, with any two adjacent plates forming an obtuse angle. The air guide 40 protrudes towards the air outlet cavity 22, thus ensuring that both the air inlet cavity 21 and the air outlet cavity 22 have sufficient space, which is conducive to rapid airflow and heat dissipation of the motor 30. In this embodiment, the air guide 40 includes three sequentially connected flat plates, and the structure is very simple.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A vacuum cleaner, comprising a vacuum cleaner body, a cover disposed on the upper end of the vacuum cleaner body, and a motor disposed on the cover, the motor comprising a motor body and a fan disposed on one side of the motor body, the motor having an air inlet side and an air outlet side. Its features are, The cover body is provided with a ventilation cavity, and the ventilation cavity is provided with an air guide. The air guide divides the ventilation cavity into an air inlet cavity and an air outlet cavity. The air inlet cavity is connected to the air inlet side of the motor and has an air inlet that communicates with the outside. The air outlet cavity is connected to the air outlet side of the motor and has an air outlet that communicates with the outside.

2. The vacuum cleaner according to claim 1, characterized in that, The cover includes a lower cover and an upper cover. The lower cover is connected to the vacuum cleaner body, and the upper cover is connected to the lower cover. The upper cover and the lower cover enclose the ventilation cavity.

3. The vacuum cleaner according to claim 2, characterized in that, The lower cover has a first wall that surrounds the ventilation cavity, and the air guide is integrally formed on the first wall and extends toward the inner wall of the upper cover.

4. The vacuum cleaner according to claim 3, characterized in that, The lower cover has a first through hole and a second through hole penetrating the first wall surface. The air guide is disposed between the first through hole and the second through hole to separate the first through hole and the second through hole. The motor is installed at the first through hole, the air inlet side of the motor is connected to the air inlet cavity through the first through hole, and the air outlet side of the motor is connected to the air outlet cavity through the second through hole.

5. The vacuum cleaner according to claim 4, characterized in that, The air guide includes a main body and extensions at both ends of the main body. The main body is arc-shaped and protrudes towards the air outlet cavity. The two extensions extend from one end connected to the main body to the other end in a direction away from each other.

6. The vacuum cleaner according to claim 5, characterized in that, The lower cover is provided with a vortex-shaped exhaust duct, and the first through hole and the second through hole are both located in the inner ring of the exhaust duct. The extension of the air guide is connected to the outer wall of the exhaust duct.

7. The vacuum cleaner according to claim 4, characterized in that, The first wall portion is recessed towards the vacuum cleaner body to form an annular groove. A mounting portion is formed inside the groove. The mounting portion has a first top wall and a first side wall surrounding the first top wall. The motor is mounted in the space enclosed by the first top wall and the first side wall. The first through hole is opened in the first top wall. The air guide is connected to the first top wall and extends to the bottom wall of the groove. The air guide divides the groove into a first slot and a second slot. The first slot communicates with the air inlet chamber, and the second slot communicates with the air outlet chamber. The second through hole is opened in the first side wall and communicates with the second slot.

8. The vacuum cleaner according to claim 2, characterized in that, The lower cover includes a lower cover body and a lower cover accessory. The lower cover body is connected to the vacuum cleaner body, the upper cover is connected to the lower cover body, the lower cover accessory is connected to the side of the lower cover body facing the upper cover, the motor is mounted on the lower cover body, and the air guide is integrally formed on the lower cover accessory.

9. The vacuum cleaner according to claim 8, characterized in that, The lower cover body has a mounting cavity, the motor is mounted in the mounting cavity, and the mounting cavity has an opening on the side facing the upper cover. The lower cover fitting is installed at the opening of the mounting cavity and covers the opening of the mounting cavity. The lower cover accessory is provided with a first connecting port and a second connecting port. The first connecting port connects the air inlet cavity and the air inlet side of the motor, and the second connecting port connects the air outlet side of the motor and the air outlet cavity. The air guide is disposed between the first connecting port and the second connecting port and extends into the inner wall of the upper cover.

10. The vacuum cleaner according to claim 9, characterized in that, The end of the second connecting port that connects to the air outlet cavity faces the air guide.

11. The vacuum cleaner according to any one of claims 2 to 10, characterized in that, The air guide is configured as a plate structure, extending from the lower cover to the upper cover. The inner wall of the upper cover is provided with a mating plate, which abuts against the edge of the air guide.

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