WO2022223014A1

WO2022223014A1 - Vacuum cleaner

Info

Publication number: WO2022223014A1
Application number: PCT/CN2022/088350
Authority: WO
Inventors: 卞庄
Original assignee: 苏州爱普电器有限公司
Priority date: 2021-04-23
Filing date: 2022-04-22
Publication date: 2022-10-27
Also published as: CN115227137A; CN115227137B

Abstract

A vacuum cleaner, comprising a suction nozzle part (1) having a dirty air suction port (109), a dust cup part (2), a motor part (3), a handle (4), and an exhaust port (103) for exhausting clean air from the motor part (3), wherein the exhaust port (103) is close to the dirty air suction port (109), the dirty air suction port (109) is configured to be capable of guiding outside air to be sucked in a first direction (F1), and the exhaust port (103) is configured to be capable of guiding the clean air from the motor part (3) to be blown out in a second direction (F2), which is opposite the first direction (F1).

Description

vacuum cleaner

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application with the application number 202110443677.2 and the application name "Vacuum Cleaner", which was submitted to the State Intellectual Property Office of China on April 23, 2021. The entire content of the patent application is incorporated herein by reference.

technical field

The present application relates to the technical field of cleaning equipment, and in particular, to a vacuum cleaner.

Background technique

Vacuum cleaners rely on a drive motor to create a vacuum before the dirty air intakes to the motor impeller. The resulting vacuum collects debris from the surface to be cleaned, sucks it through the dirty air duct, and accumulates the debris in the dust cup, thereby achieving a cleaning effect.

The dirty air suction port of vacuum cleaners currently on the market adopts a single suction port structure. Therefore, when cleaning objects with low surface tension such as curtains, due to the negative pressure in front of the suction port, these objects are attached to the dirty air suction port, preventing the vacuum cleaner from continuously inhaling dirty air and moving on the surface of such objects. . In addition, when using this type of vacuum cleaner to clean pet hair and epidermis, the pet hair will be sucked into the dirty air intake, which will cause a large pulling on the root of the pet hair, and the pet's comfort will be low.

SUMMARY OF THE INVENTION

The purpose of this application is to provide an improved vacuum cleaner.

In order to achieve the above object, the present application adopts the following technical solutions: a vacuum cleaner, comprising: a suction nozzle part, the suction nozzle part includes a dirty air suction port; a motor part, the motor part is configured to generate suction force and draw ambient air into the dirty air intake; a dust cup portion in fluid communication with the dirty air intake and configured to store debris separated from the dirty air flow; and at least one exhaust port, the at least one exhaust port is used for discharging clean air from the motor part; wherein, the at least one exhaust port is close to the dirty air intake port, and the dirty air is sucked in The port is configured to direct outside air to be drawn in in a first direction, and the at least one exhaust port is configured to direct clean air from the motor portion to be blown out in a second direction opposite to the first direction.

The vacuum cleaner of the above technical solution, by arranging the exhaust port outside the dirty air intake port, can form a positive pressure outside the dirty air intake port, and the continuous positive pressure can make the surface tension-free objects such as curtains always inhale the dirty air. Keep a certain distance from the mouth, so as to prevent the surface tension-free objects such as curtains from sticking to the dirty air suction mouth, and ensure the normal movement of the vacuum cleaner. At the same time, when the vacuum cleaner of this solution cleans the pet's hair and epidermis, the continuous positive pressure can blow part of the pet's hair away from the dirty air intake, improving the pet's comfort.

In a possible implementation manner, the at least one exhaust port surrounds the periphery of the dirty air intake port.

In a possible implementation manner, the at least one exhaust port is located at the front side of the dirty air intake port or is flush with the dirty air intake port. . The negative pressure of the dirty air suction port is used to vacuum the upper part of the pet hair root, and the positive pressure formed by the exhaust port can be used to buffer the pulling of the pet hair root caused by the negative pressure of the dirty air suction port to improve the pet's comfort.

In a possible implementation manner, the dirty air suction port and the at least one exhaust port are both located on the front side of the dust cup portion, and the motor portion is located on the rear side of the dust cup portion. Debris in the dirty air, pet hair and epidermis dust are collected in the dust cup to achieve a cleaning effect. At the same time, the pet is kept away from the motor noise, and the comfort of the pet when the device is used is improved.

In a possible implementation manner, the vacuum cleaner further comprises a handle part, the handle part is configured to be able to be held by a user's hand, and the handle part is adjacent to the motor part. User-friendly operation, away from dirty air. In a possible implementation manner, the handle part is rotatably connected to the motor part. It is convenient for the user to freely adjust the position of the handle portion as required.

In a possible implementation, the handle portion is configured to receive at least one battery, and the at least one battery is used to power the motor portion. This makes the vacuum cleaner compact.

In a possible implementation manner, the vacuum cleaner further includes an exhaust path, the exhaust path communicates with the motor part and the at least one exhaust port, and the exhaust path at least has Parts pass from the outside of the dust cup portion. The arrangement has a compact structure, extends the exhaust passage, reduces the pressure of the exhaust outlet, and prevents the exhaust from blowing debris on the surface of the object.

In a possible implementation manner, the vacuum cleaner further includes: an exhaust part, the exhaust part is located outside the dust cup part, the exhaust part includes an exhaust housing, the exhaust part is A part of the outer wall surface of the dust cup part abuts on the exhaust casing, and at least part of the exhaust path is defined by the exhaust casing.

In a possible implementation manner, the at least one exhaust port is annular or distributed in an annular shape, and the at least one exhaust port surrounds the periphery of the dirty air suction mask body and is arranged concentrically with each other .

In a possible implementation manner, the at least one exhaust port is configured so that the clean air can be blown out along the second direction in an outward diffusing manner. In order to increase the area of the positive pressure zone formed on the front side of the exhaust port, the pressure of the positive pressure zone is reduced.

In a possible implementation manner, the at least one exhaust port is configured so that the clean air can be blown out along the second direction in an inner gathering manner. In order to reduce the positive pressure area formed on the front side of the exhaust port. Increase plenum pressure.

In a possible implementation, it further includes a blowing nozzle, the at least one exhaust port is formed on the blowing nozzle, and the blowing nozzle is removably arranged at the suction nozzle part . It is convenient for users to remove or replace different types of nozzles and to clean the nozzles.

In a possible implementation, the front part of the blowing nozzle is provided with several protruding posts, the several protruding posts protrude forward relative to the dirty air suction port, and the exhaust port has multiple At least part of the exhaust ports are formed on the plurality of protruding posts.

Additional aspects and other advantages of the present application will be presented in the description section that follows, and in part will be apparent from the description below, or learned by practice of the invention.

Description of drawings

The present application will now be described with reference to the accompanying drawings, in which:

1 is a schematic three-dimensional structure diagram of a vacuum cleaner according to an embodiment of the application;

FIG. 2 is a schematic cross-sectional front view of the vacuum cleaner shown in FIG. 1; wherein the handle portion is removed;

FIG. 3 is a schematic top sectional view of the vacuum cleaner shown in FIG. 1; wherein the handle portion is removed;

Fig. 4 is the disassembled schematic diagram of the vacuum cleaner shown in Fig. 1; wherein, the handle part is removed;

Fig. 5 is the schematic diagram of the air flow of the front sectional view shown in Fig. 2;

Fig. 6 is the schematic diagram of the air flow of the top sectional view shown in Fig. 3;

7 is a schematic diagram of the blowing and inhaling directions of an exhaust port and a dirty air intake port according to an embodiment provided by the application;

8 is a schematic diagram of the blowing and inhaling directions of the exhaust port and the dirty air intake port of another embodiment provided by the application;

FIG. 9 is a schematic structural diagram of a vacuum cleaner configured with another blowing nozzle according to an embodiment of the present application;

FIG. 10 is a schematic perspective view of the blowing nozzle shown in FIG. 9 .

Reference number:

100. Vacuum cleaner;

1. Suction nozzle; 101, Mounting seat; 102, Housing; 1021, Inner pipe; 1022, Outer pipe; 103, Exhaust port; 104, Dirty air suction channel; 105, Blow nozzle; 106, Ventilation hole; 107 , seal; 108, gap; 109, dirty air suction port; 1052, blowing nozzle; 1053, convex column; 1054, front wall;

2. Dust cup part; 201, Dust collection chamber; 202, Intake passage; 203, Inner passage; 204, Filter; 205, Outflow passage; 206, Dust cup; 2061, Short pipe; 207, Notch; 208, Mesh filter; 2081, top cover; 2082, mesh cover; 2083, central pipe; 2084, mesh;

3. Motor part; 301, motor impeller; 302, drive motor; 303, motor housing exhaust outlet; 304, handle connection part; 305, motor part exhaust passage; 306, motor housing; 307, motor part housing;

4. Handle;

5. Exhaust part; 501, outlet; 502, channel; 503, inlet; 504, exhaust housing.

Detailed ways

In order to describe in detail the technical content, structural features, achieved goals and effects of the invention, the technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only the Some embodiments are claimed, but not all embodiments. In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be practiced without these specific details or with one or more equivalent arrangements. Furthermore, the various exemplary embodiments may vary, but are not necessarily exclusive. For example, the specific shapes, configurations, and characteristics of an exemplary embodiment may be used or implemented in another exemplary embodiment without departing from the inventive concept.

Hereinafter, the terms "first", "second", etc. are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of this application, unless stated otherwise, "plurality" means two or more.

In this application, the spatially relative term of "opposite direction" is used to describe the pointing relationship between the two moving directions; for example, "clean air is blown out in a second direction opposite to the first direction", it can mean that the second direction is different from the first direction. The included angle formed by the first direction is in the range of 140° to 180°.

In this application, the spatially relative terms of "outwardly diffusing mode" and "inwardly converging mode" are used to describe the movement of an object in a certain direction, and at the same time, it also has a partial velocity of outward or inward movement. For example, "the clean air is blown out along the second direction in an outwardly diffused manner", it means that the clean air also has a partial velocity of outward movement during the movement in the second direction.

Furthermore, in this application, expressions such as "under", "under", "under", "under", "over", "on", "over" ”, “higher”, “side” (eg, as in “sidewall”), etc., spatially relative terms used to describe the relationship of one element to another (other) element as illustrated in the figures . Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. In addition, the device may be otherwise oriented (eg, rotated 90 degrees or at other orientations) and, as such, the spatially relative descriptors used herein should be interpreted accordingly.

In this application, unless otherwise expressly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" may be a fixed connection, a detachable connection, or an integrated body; it may be directly connected, or Can be indirectly connected through an intermediary.

Embodiments of the present application provide a cleaning device. The cleaning equipment includes, for example, a hand-held vacuum cleaner or the like. The specific form of the above cleaning device is not particularly limited in the embodiments of the present application. In the following, for the convenience of description, the description is given by taking a hand-held vacuum cleaner as an example.

Please refer to FIGS. 1-4 , which are schematic structural diagrams of a vacuum cleaner 100 provided by an embodiment of the present application.

As shown in FIG. 1 , a vacuum cleaner 100 according to an embodiment of the present invention includes a nozzle part 1 , a dust cup part 2 located behind the nozzle part 1 , and a motor part 3 located behind the dust cup part 2 . In this example, the nozzle part 1, the dust cup part 2, and the motor part 3 are arranged substantially along a straight line. A handle 4 is also installed on the motor part 3, and the handle 4 is arranged to be convenient for the user to hold and operate. In this example, a built-in battery (not shown in the figure) is installed inside the handle 4 for supplying power to the drive motor 302 in the motor part 3 . The motor part 3 and the handle 4 are rotatably connected, and the maximum rotation angle of the handle 4 is limited by the motor part housing 307 .

The suction nozzle 1 shown in FIGS. 2-3 includes a mounting seat 101 , a housing 102 connected to the front side of the mounting seat 101 , a dirty air suction port 109 formed at the front end of the housing 102 , and a dirty air suction port 109 located at the front end of the housing 102 . The peripheral exhaust port 103 , the dirty air intake channel 104 , the blowing nozzle 105 , the sealing member 107 arranged on the mounting seat 101 and the gap 108 .

The housing 102 adopts an integrated design, including an inner tube 1021 and an outer tube 1022 located at the periphery of the inner tube. The inner side of the inner tube 1021 forms the dirty air suction passage 104 . In this example, the dirty air intake port 109 is located at the foremost end of the entire housing 102 and is in fluid communication with the dirty air intake passage 104 to suck in dirty air. The gap 108 is located between the inner tube 1021 and the outer tube 1022 , and the outer tube 1022 is provided with a ventilation hole 106 for realizing the communication between the gap 108 and the exhaust port 103 .

Please refer to FIG. 4 , the blowing nozzle 105 is cylindrical, which is engaged with the front part of the casing 102 . An exhaust port 103 is defined between the front portion of the housing 102 and the blowing nozzle 105 . In this example, the exhaust port 103 is annular and surrounds the dirty air intake port 109, and the exhaust port 103 and the dirty air intake port 109 are arranged concentrically and flush; in other alternative solutions, the exhaust port is also It may protrude to the front side relative to the dirty air intake.

In the embodiment of the present application, the blowing nozzle 105 and the housing 102 are detachably connected, which can facilitate the user to replace and use different types of blowing nozzles and to clean the blowing nozzles. The detachable connection manner of the blowing nozzle 105 and the housing 102 is not limited, for example, the connection may be performed through a snap-fit structure, a twist-lock structure, or the like. Among them, the structures of the snap-fit structure and the turn-lock structure are well known to those skilled in the art. The blowing nozzle 105 can utilize the positive pressure of the exhaust port 103 to prevent the object from sticking to the dirty air suction port 109 when the vacuum cleaner is used to vacuum the objects with low surface tension such as curtains and clothes, so as to ensure the vacuum The vacuum cleaner 100 continuously sucks in dirty air and moves along such surfaces. In addition, the blowing nozzle can also effectively relieve the pulling of the root of the pet hair due to the negative pressure of the dirty air suction port 109 when the vacuum cleaner 100 is used to vacuum the pet hair and epidermis, thereby improving the pet's comfort.

Continuing to refer to FIGS. 2-4 , the dust cup portion 2 includes a dust cup 206 defining a dust collection chamber 201 inside, a mesh filter 208 disposed at the rear of the dust collection cup 206 and partially extending into the dust collection chamber 201 . In this example, the dust cup 206 and the mesh filter 208 on the dust cup part 2 can be disassembled together, so as to dump the dust inside the dust cup 206 and clean the dust cup 206 and the mesh filter 208 .

In this embodiment, the dust collecting cup 206 is an integral member having a cylindrical structure, the front end of the dust collecting cup 206 has a notch 207, and the rear end is an open structure. The front part of the dust cup 206 has a part of the cup wall extending to the rear side to form a short pipe 2061 which passes through the gap 207 and penetrates the inner side of the dust cup 206 , and the inner side of the short pipe 2061 forms the air intake passage 202 . After the dust cup part 2 is connected to the suction nozzle part 1, the front end of the dust cup 206 is in contact with the rear end surface of the mounting seat 101, and the inner pipe 1021 and the short pipe 2061 are sealedly connected by the sealing member 1 107, and the air intake Channel 202 is in fluid communication with dirty air intake channel 104 .

In this embodiment, the mesh filter 208 includes a top cover 2081 , a cylindrical mesh cover 2082 with several mesh holes 2084 , and a central pipe 2083 located inside the mesh cover 2082 and fixedly connected to the mesh cover 2082 . . The front end of the central pipe 2083 is connected to the short pipe 2061 , and the rear end passes through the mesh cover 2082 and extends into the dust collection chamber 201 . The inner side of the central pipe 2083 forms an inner passage 203 , and the intake passage 202 is in fluid communication with the inner passage 203 . The rear end of the mesh cover 2082 is connected to the top cover 2081 and abuts against the inner wall of the dust collecting cup 206. Under the combined action of the mesh cover 2082 and the dust collecting cup 206, the gas flowing out of the inner channel 203 can be in a spiral shape. flow. The top cover 2081 is detachably installed at the opening of the rear end of the dust collecting cup 206 and closes the dust collecting chamber 201 . The top cover 2081 , the mesh cover 2082 , and the center tube 2083 collectively define the outflow channel 205 , which is located inside the mesh filter 208 . The meshes 2084 of the mesh cover 2082 provide fluid communication for fluid flow from the dust collection chamber 201 into the passages 205 . A detachable filter 204 is provided on the inner side of the top cover 2082 for filtering the dirty air passing through the outflow channel 205; the filter 204 can be a sponge filter or a Hypa filter.

2-3 , the motor part 3 includes a motor impeller 301 , a drive motor 302 , a handle connection part 304 , a motor part exhaust passage 305 , a motor housing 306 , and a motor part housing 307 . The drive motor 302 is powered by the built-in battery of the handle 4 , and the drive motor 302 drives the motor impeller 301 , thereby forming a continuous negative pressure on the fluid path between the dirty air intake 109 and the motor impeller 301 . The motor portion exhaust passage 305 is defined by a gap between the motor housing 306 and the motor portion housing 307 . A motor exhaust outlet 303 is arranged at the rear end of the motor housing 306 to realize fluid communication between the inner side of the motor housing 306 and the exhaust passage 305 of the motor part. The handle connection part 304 is arranged on the motor part housing 307 and is used to connect the motor part 3 and the handle 4 .

Continuing to refer to FIGS. 2-4 , the exhaust portion 5 includes an exhaust housing 504 , and the interior of the exhaust housing 504 has a passage 502 extending in the front-rear direction. Passage 502 has an outlet 501 at the front of the exhaust housing 504 and an inlet 503 at the rear of the exhaust housing 504. The outlet 501 communicates with the gap 108 of the nozzle portion 1 . Inlet 503 is in fluid communication with motor section exhaust passage 305 .

It should be noted that, the above-mentioned exhaust part 5 , suction nozzle part 1 and motor part 3 , under the premise of satisfying technological requirements, their housings can be made at the same time as one piece, or they can be assembled into a whole piece after being made separately.

Referring to FIGS. 5-6 , the solid arrows in the figures indicate the flow direction of the dirty air carrying debris, and the dashed arrows indicate the flow direction of the clean air that has separated debris. In the entire vacuum cleaner 100 , the exhaust passage 305 , the inlet 503 , the passage 502 , the outlet 501 , the gap 108 , the ventilation hole 106 and the exhaust port 103 of the motor part are connected in sequence to form an exhaust for the clean air in the motor part 3 to be discharged from the vacuum cleaner 100 . air path. As shown in the figure, under the action of the negative pressure of the dirty air intake port 109, the dirty air from the outside flows through the intake channel 202 and the inner channel 203 in sequence from the dirty air intake channel 104 along the first direction F1, and enters the dust collection chamber Cyclone separation is performed in 201 , and the debris separated by the rotary separation action and the debris blocked by the mesh cover 2082 of the mesh filter 208 are collected and stored by the dust collecting cup 201 . Afterwards, the dirty air passes through the mesh holes 2084 to reach the outflow channel 205, and the filter 204 disposed at the middle end of the outflow channel 205 further separates the debris carried by the dirty air, thereby obtaining clean air. The clean air coming out of the outflow passage 205 passes through the motor impeller 301, drives the motor 302, the motor exhaust port 303, and reaches the exhaust passage 305 of the motor part. After that, it goes through the inlet 503 , the channel 502 , and the outlet 501 in sequence to enter the gap 108 . Finally, it reaches the exhaust port 103 through the ventilation hole 106 , and is discharged along the second direction F2 , thereby forming a positive pressure around the dirty air intake port 109 .

As shown in FIG. 7 and FIG. 8 , the flow direction of the clean air discharged from the exhaust port 103 , that is, the second direction F2 may be to gather toward the negative pressure area in front of the dirty air intake port 109 , or it may be toward the front side of the dirty air intake port 109 . The peripheral direction of the negative pressure area is diffused; in short, it does not necessarily form an included angle of 180° with the first direction F1. The specific angle formed by the first direction F1 and the second direction F2 is defined by the structure of the blowing nozzle 105. The specific structure of the blowing nozzle 105 and the specific angle formed by the first direction F1 and the second direction F2 are not protected by the present application Scope is limited.

Referring to FIG. 9 and FIG. 10 , the present application provides a schematic diagram of a vacuum cleaner configured with a blowing nozzle 1052 of another structure and a three-dimensional schematic diagram of the blowing nozzle 1052 . The blowing nozzle 1052 is characterized in that the area of the exhaust port is enlarged. Specifically, the front part of the blowing nozzle 1052 has a front wall 1054 with a hollow in the middle, and the dirty air suction port 109 is located or extended to the hollow in the middle of the front wall 1054 . The front wall 1054 is also provided with a number of protruding posts 1053, and these protruding posts 1053 protrude forward relative to the front wall 1054; in this example, the number of exhaust ports 103 is multiple and integrated on the blowing nozzle 1052; some exhaust ports Ports 103 are formed on the front wall 1054; other exhaust ports 103 are formed on these protruding posts 1053, and these exhaust ports 103 will be located in front of the dirty air intake port 109, that is, during operation, these exhaust ports 103 are more Close to the surface to be cleaned; all these exhaust ports 103 can effectively blow out clean air, so that when the pet's skin and hair is vacuumed with a vacuum cleaner, the dirty air intake port 109 can always keep a certain distance from the root of the pet hair, which effectively relieves The negative pressure of the dirty air suction channel pulls the root of the pet's hair and can comb the pet's hair and massage the pet at the same time, which improves the efficiency and comfort of the pet's hair when using vacuum cleaning. It should be noted that, in the above two embodiments, the blowing nozzle 105 and the blowing nozzle 1052 can also be set to other suitable sizes according to actual needs, as long as they can be connected to a vacuum cleaner, which is not applicable to this application. The scope of protection is limited.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and improvements, the claimed scope of the present invention is defined by the appended claims, description and their equivalents.

Claims

A vacuum cleaner comprising:

a suction nozzle (1), including a dirty air suction port (109);

a motor portion (3) configured to generate a suction force and suck dirty air together into the dirty air intake port (109);

a dust cup portion (2) in fluid communication with said dirty air intake (109) and configured to store debris separated from the flow of dirty air; and

at least one air outlet (103), the at least one air outlet (103) is used to discharge clean air from the motor part (3);

Wherein, the at least one exhaust port (103) is close to the dirty air intake port (109), and the dirty air intake port (109) is configured to guide the outside air along the first direction (F1) Inhalation, the at least one exhaust port (103) is configured to be able to direct the clean air from the motor part (3) to blow out in a second direction (F2) opposite to the first direction (F1).
The vacuum cleaner according to claim 1, wherein the at least one exhaust port (103) is located in front of the dirty air intake port (109) or is aligned with the dirty air intake port (109). flat.
The vacuum cleaner according to claim 1, wherein the dirty air suction port (109) and the at least one exhaust port (103) are both located on the front side of the dust cup portion (2), The motor part (3) is located on the rear side of the dust cup part (2).
The vacuum cleaner of claim 3, further comprising: a handle portion (4) configured to be gripped by a user's hand, the handle portion abutting the the motor part (3).
The vacuum cleaner of claim 4, wherein the handle portion (4) is configured to receive at least one battery for powering the motor portion (3).
The vacuum cleaner according to claim 4, wherein the handle part (4) is rotatably connected to the motor part (3).
The vacuum cleaner according to claim 1, further comprising: an exhaust path, wherein the exhaust path communicates the motor part (3) and the at least one exhaust port (103), so The exhaust path at least partially passes through the outside of the dust cup portion (2).
The vacuum cleaner according to claim 7, wherein the vacuum cleaner (100) further comprises: an exhaust part (5), and the exhaust part (5) is located in the dust cup part (2) The outside of the exhaust part (5) includes an exhaust casing (504), and the dust cup part (2) has a part of the outer wall surface abutting on the exhaust casing (504), at least Part of the exhaust path is defined by the exhaust housing (504).
The vacuum cleaner according to claim 1, wherein the at least one exhaust port (103) surrounds the periphery of the dirty air intake port (109).
The vacuum cleaner according to claim 9, characterized in that, the at least one exhaust port (103) is annular or distributed in an annular shape, and the at least one exhaust port (103) and the dirty air The suction ports (109) are arranged concentrically with each other.
The vacuum cleaner according to claim 9, characterized in that said at least one exhaust port (103) is configured to enable said second direction (F2) to diffuse outwardly from said clean air ) blow out.
The vacuum cleaner of claim 9, wherein the at least one exhaust port (103) is configured to enable the cleaning air from the clean air to converge inwardly along the second direction (F2) ) blow out.
The vacuum cleaner according to claim 1, characterized in that, further comprising: a blowing nozzle (105; 1052), the at least one air outlet (103) is formed on the blowing nozzle (105; 1052), The blowing nozzle (105; 1052) is removably arranged at the suction nozzle part (1).
The vacuum cleaner according to claim 13, characterized in that, the front part of the blowing nozzle (105; 1052) is provided with several protruding posts (1053), and the several protruding posts (1053) are opposite to the dirty The air suction port (109) protrudes forward, there are a plurality of the exhaust ports (103), and at least part of the exhaust ports (103) are formed on the plurality of protruding posts (1053).