CN112205921A

CN112205921A - Vacuum cleaner

Info

Publication number: CN112205921A
Application number: CN201910615133.2A
Authority: CN
Inventors: 周威
Original assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Current assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2021-01-12
Anticipated expiration: 2039-07-09
Also published as: CN112205921B; WO2021004314A1

Abstract

The invention discloses a dust collector which comprises a machine body, a bracket component, a first component and a second component. The fuselage has dust gas import and dust gas export, the bracket component is connected with fuselage detachably, the bracket component includes first support and the second support of being connected with first support, first wind channel has in the first support, the second wind channel has in the second support, first wind channel and second wind channel are through intercommunication wind channel intercommunication, first part is connected with first support, first part is used for removing dust or the amortization to the air current in the first wind channel, second part and second leg joint, the second part is used for removing dust or the amortization to the air current in the second wind channel. According to the dust collector, when the bracket assembly needs to be detached from the machine body, the first component and the second component can be detached from the machine body along with the bracket assembly, so that the first component and the second component can be cleaned or replaced conveniently.

Description

Vacuum cleaner

Technical Field

The invention relates to the technical field of dust and gas treatment devices, in particular to a dust collector.

Background

The cyclone separation system is a great hot selling point in the dust collector industry, has wide application and has great commercial application in the dust collector industry. In operation, larger garbage and part of dust are separated from the air flow in the cyclone separation unit, the garbage and foreign matters are collected in the dust cavity, and then the air flow with a small amount of dust is filtered by the filter cotton and discharged into the air. Most filter in the dust catcher trade at present all embeds inside dirt cup cyclone, and the inside cyclone of dirt cup filters piece and motor air-out simultaneously and filters the piece and be separately, leads to the difficult clearance of user to filter the piece.

Disclosure of Invention

The application provides a dust collector, dust collector has convenient dismantlement, abluent advantage.

A vacuum cleaner according to an embodiment of the present invention includes: a body having a dust and air inlet and a dust and air outlet; the support assembly is detachably connected with the machine body, a communicating air channel is defined between part of the peripheral wall of the support assembly and the machine body, the support assembly comprises a first support and a second support connected with the first support, a first air channel is arranged in the first support, the first air channel is directly or indirectly communicated with the dust and air inlet, a second air channel is arranged in the second support, the first air channel and the second air channel are communicated through the communicating air channel, and the second air channel is directly or indirectly communicated with the dust and air outlet; the first component is connected with the first support and is used for dedusting or silencing air flow in the first air duct; and the second component is connected with the second bracket and is used for removing dust or silencing the airflow in the second air duct.

According to the dust collector provided by the embodiment of the invention, the bracket assembly is detachably arranged on the machine body, and the first component and the second component are arranged on the bracket assembly, so that when the bracket assembly needs to be detached from the machine body, the first component and the second component can be detached from the machine body along with the bracket assembly, and the first component and the second component can be cleaned or replaced conveniently. In addition, the bracket component can be utilized to construct a part of air duct structure by arranging the bracket component, so that on one hand, the flow path of the air flow in the machine body can be prolonged, the turbulent flow noise of the air flow is eliminated, and the working noise of the dust collector is reduced; on the other hand, the first part with the dust removal or silencing function and the second part with the dust removal or silencing function can be used for further silencing or dedusting the airflow, so that the service performance of the dust collector can be improved.

In some embodiments, the bracket assembly further comprises a third bracket connected to the second bracket, the third bracket having a third air duct therein, the third air duct being in communication with the second air duct; the dust collector also comprises a third component, the third component is connected with the third support, the third component is used for removing dust or silencing air flow in the third air channel, and the third air channel is directly or indirectly communicated with the dust and air outlet.

In some embodiments, the third bracket is cylindrical, one of two ends of the third bracket in the axial direction is open, the other end of the third bracket is closed, one end of the third bracket is connected to the second bracket, the second air duct is communicated with the third air duct through one end of the third bracket, an outlet of the third air duct is arranged on a peripheral wall of the third bracket, at least one of an inner peripheral wall of the third bracket and an outer peripheral wall of the third bracket is provided with the third component, and the third component shields the outlet of the third air duct so as to remove dust or reduce noise of the air flow flowing out from the outlet of the third air duct.

In some embodiments, the second bracket is cylindrical, one end of the second bracket is open, the other end of the second bracket is closed, the closed end of the second bracket is connected with the first bracket, the inlet of the second air duct is arranged on the peripheral wall of the second bracket, at least one of the peripheral wall of the second bracket and the inner peripheral wall of the second bracket is provided with the second component, and the second component shields the inlet of the second air duct so as to remove dust or reduce noise of the air flow entering the second air duct.

In some embodiments, the first bracket is cylindrical, one end of the first bracket is open, the other end of the first bracket is closed, and the closed end of the first bracket is connected with the second bracket; the open end of the first bracket is an outlet of the first air duct, and an inlet of the first air duct is arranged on the peripheral wall of the first bracket; at least one of the inner peripheral wall of the first support and the outer peripheral wall of the first support is provided with the first component, and the first component shields the inlet of the first air duct so as to remove dust or eliminate noise of the air flow entering the first air duct.

In some embodiments, the vacuum cleaner further comprises: the motor assembly is arranged in the machine body, a motor air duct is arranged in the motor assembly, an inlet of the motor air duct is communicated with an outlet of the first air duct, and an outlet of the motor air duct is communicated with an inlet of the communicated air duct.

In some embodiments, the bracket assembly is a one-piece member.

In some embodiments, the first component is a piece of nappa or a layer of sound attenuating cotton.

In some embodiments, a cyclone air duct is arranged in the machine body, the dust collector further comprises an outer cover member, the outer cover member is sleeved on the first support, the outer peripheral wall of the first support and the inner peripheral wall of the outer cover member define a guide air duct, one end of the guide air duct is communicated with the cyclone air duct, and the other end of the guide air duct is communicated with an inlet of the first air duct; the outer peripheral wall of the outer cover piece and the partial inner peripheral wall of the machine body define the communication air duct.

In some embodiments, the cyclone air duct has a first cyclone separating device and a second cyclone separating device which are spaced apart from each other, and the airflow passes through the first cyclone separating device and the second cyclone separating device in sequence and flows into the guide air duct.

In some embodiments, a seal is provided between the first bracket and the outer cover member to prevent the guide duct and the communication duct from being spaced apart.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic cross-sectional view of a vacuum cleaner according to an embodiment of the present invention;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

FIG. 3 is a schematic cross-sectional view of a vacuum cleaner according to an embodiment of the present invention;

FIG. 4 is a perspective view of a vacuum cleaner according to an embodiment of the present invention;

FIG. 5 is an exploded view of a vacuum cleaner according to an embodiment of the present invention;

fig. 6 is a cross-sectional view illustrating a bracket assembly of a vacuum cleaner according to an embodiment of the present invention.

Reference numerals:

in the vacuum cleaner 100, the suction nozzle is provided with a suction nozzle,

the body 110 has a dust inlet 111, a dust outlet 112, a communicating air duct 113,

a cyclonic separating duct 114, first cyclonic separating apparatus 115, second cyclonic separating apparatus 116,

the support assembly 120 is provided with a support frame,

the first bracket 121, the first air duct 122,

the second bracket 123, the second air duct 124,

a third bracket 125, a third air duct 126,

the first member 131, the second member 132, the third member 133,

the seal (140) is provided in the form of a seal,

a motor assembly 150, a motor air duct 151,

and an outer cover member 160, and a guide duct 161.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A vacuum cleaner 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 6.

As shown in fig. 1, the vacuum cleaner 100 according to the embodiment of the present invention includes a body 110, a bracket assembly 120, a first member 131, and a second member 132.

Specifically, as shown in fig. 4 to 5, the body 110 has a dust and air inlet 111 and a dust and air outlet 112, and the bracket assembly 120 is detachably coupled to the body 110. Here, the bracket assembly 120 may be used to support some consumable components or vulnerable components in the vacuum cleaner 100, such as filtering components, noise reduction components, etc., so that when these components need to be cleaned or replaced, these components are detached from the main body 110 following the bracket assembly 120, thereby improving the convenience of cleaning and replacing these components.

As shown in fig. 1-3, a portion of the peripheral wall of the bracket assembly 120 and the body 110 define a communication duct 113. As shown in fig. 6, the bracket assembly 120 may include a first bracket 121 and a second bracket 123 connected to the first bracket 121, the first bracket 121 having a first air duct 122 therein, the first air duct 122 being in direct or indirect communication with the dust and air inlet 111. As shown in fig. 3, the airflow may enter the first air duct 122 in the direction of arrow a4, flow within the first air duct 122 in the direction of arrow a5, and then flow out of the first air duct 122 in the direction of arrow a 6.

As shown in fig. 2, the second bracket 123 has a second air duct 124 therein, the first air duct 122 and the second air duct 124 are communicated through a communicating air duct 113, and the second air duct 124 is directly or indirectly communicated with the dust and air outlet 112. As shown in fig. 3, after entering the communicating air duct 113, the air flow flowing out of the first air duct 122 flows in the direction of the arrow a8, and then enters the second air duct 124 in the direction of the arrow a9 and flows out of the second air duct 124 in the direction of the arrow a 10. Therefore, the bracket assembly 120 can extend the flow path of the airflow in the body 110, thereby eliminating the turbulent noise of the airflow and reducing the operating noise of the vacuum cleaner 100.

As shown in fig. 6, the first member 131 is connected to the first bracket 121, and the first member 131 is used for removing dust or silencing the air flow in the first air duct 122. The second member 132 is connected to the second bracket 123, and the second member 132 is used for removing dust or silencing the airflow in the second air duct 124. It is understood that the first member 131 and the second member 132 may be both members for removing dust and also both members for attenuating noise; of course, the types of the first and

second members

131 and 132 are not limited thereto, for example, in some embodiments, one of the first and

second members

131 and 132 is a dust removing member and the other is a sound deadening member.

Here, by disposing both the first member 131 and the second member 132 on the bracket assembly 120 and disposing the bracket assembly 120 in a detachable state with respect to the body 110, when the bracket assembly 120 is detached from the body 110, both the first member 131 and the second member 132 can be detached from the body 110, and thus the first member 131 and the second member 132 can be cleaned or replaced.

According to the vacuum cleaner 100 of the embodiment of the invention, the bracket assembly 120 is detachably arranged on the main body 110, and the first component 131 and the second component 132 are arranged on the bracket assembly 120, so that when the bracket assembly 120 needs to be detached from the main body 110, both the first component 131 and the second component 132 can be detached from the main body 110 along with the bracket assembly 120, and therefore, the first component 131 and the second component 132 can be cleaned or replaced conveniently. In addition, by arranging the bracket assembly 120, a partial air duct structure can be constructed by using the bracket assembly 120, so that on one hand, the flow path of the air flow in the machine body 110 can be prolonged, the turbulent noise of the air flow is eliminated, and the working noise of the dust collector 100 is reduced; on the other hand, the first part 131 with dust removing or silencing function and the second part 132 with dust removing or silencing function can be used for further silencing or removing dust from the airflow, so that the service performance of the dust collector 100 can be improved.

As shown in fig. 2 and 6, according to some embodiments of the present invention, the bracket assembly 120 may further include a third bracket 125. The third bracket 125 is connected to the second bracket 123, a third air duct 126 is provided in the third bracket 125, and the third air duct 126 is communicated with the second air duct 124. As shown in fig. 2 and 6, the vacuum cleaner 100 may further include a third component 133, the third component 133 is connected to the third bracket 125, the third component 133 is used for removing dust or silencing the airflow in the third air duct 126, and the third air duct 126 is directly or indirectly communicated with the dust and air outlet 112. As shown in fig. 3, the airflow may enter the third air duct 126 in the direction of arrow a10 and exit the third air duct 126 in the direction of arrow a 12.

As shown in fig. 5 and 6, in some embodiments, the third support 125 may have a cylindrical shape, and one end of both ends of the third support 125 in the axial direction is open, and the other end is closed. One end of the third bracket 125 is connected to the second bracket 123, and the second air duct 124 and the third air duct 126 are communicated through one end of the third bracket 125. For example, as shown in fig. 6, the third bracket 125 has an open upper end and a closed lower end, the second bracket 123 has an open lower end, and the third bracket 125 has an upper end connected to the second bracket 123 to communicate the second air duct 124 with the third air duct 126. As shown in fig. 3, the outlet of the third air duct 126 is provided on the peripheral wall of the third bracket 125, and the air flow can flow out of the third air duct 126 through the opening on the peripheral wall of the third bracket 125.

In order to facilitate the filtering, dedusting, or silencing of the airflow flowing out of the third air duct 126 or flowing in the third air duct 126, at least one of the inner peripheral wall of the third bracket 125 and the outer peripheral wall of the third bracket 125 has a third member 133, and the third member 133 blocks the outlet of the third air duct 126 to remove dust or sound from the airflow. For example, as shown in fig. 6, the third member 133 is disposed on the inner peripheral wall of the third support 125, and the third member 133 is a ring-shaped member, and the ring-shaped third member 133 extends along the circumferential direction of the third support 125, that is, the third member 133 is sleeved in the third support 125. On one hand, the connection stability between the third component 133 and the third bracket 125 can be improved, so that the third component 133 can be firmly and stably installed with the third bracket 125; on the other hand, the space occupied by the third component 133 can be reduced, and the compactness of the bracket assembly 120 can be improved.

Of course, the position of the third member 133 is not limited to this, for example, in some examples, the third member 133 may also be disposed on the outer peripheral wall of the third support 125, and the third member 133 is a ring-shaped member, and the ring-shaped third member 133 extends along the circumferential direction of the third support 125, that is, the third member 133 is sleeved on the third support 125; for another example, in some examples, the outer peripheral wall of the third frame 125 and the inner peripheral wall of the third frame 125 may be provided with two third members 133, i.e., one of the third members 133 is externally sleeved on the outer periphery of the third frame 125, and the other one is internally sleeved on the inner periphery of the third frame 125.

As shown in fig. 6, in some embodiments, the second bracket 123 may have a cylindrical shape, one end of the second bracket 123 is open, the other end is closed, the closed end of the second bracket 123 is connected to the first bracket 121, and the inlet of the second air duct 124 is disposed on the peripheral wall of the second bracket 123. For example, as shown in fig. 6, the upper end of the second bracket 123 is closed, the lower end is open, the lower end of the second bracket 123 communicates with the third air duct 126, and the air flow enters the second air duct 124 from the peripheral wall of the second bracket 123 and enters the third air duct 126 from the lower end of the second bracket 123.

In order to facilitate filtering, dedusting or silencing of the airflow entering the second air duct 124 or the airflow flowing in the second air duct 124, a second component 132 may be disposed on the second bracket 123, and the second component 132 may filter, dedusting or silencing the airflow. The second member 132 may shield the inlet of the second duct 124, the second member 132 may be disposed on the outer circumferential wall of the second bracket 123, or the second member 132 may be disposed on the inner circumferential wall of the second bracket 123; of course, both the inner circumferential wall of the second bracket 123 and the outer circumferential wall of the second bracket 123 may be provided with the second member 132.

As shown in fig. 6, in some embodiments, the first bracket 121 may have a cylindrical shape, one end of the first bracket 121 is open, the other end of the first bracket 121 is closed, the closed end of the first bracket 121 is connected to the second bracket 123, the open end of the first bracket 121 is an outlet of the first air duct 122, and an inlet of the first air duct 122 is disposed on a peripheral wall of the first bracket 121. In order to filter, remove dust or reduce noise of the airflow entering the first air duct 122, a first component 131 may be disposed on an inner circumferential wall of the first bracket 121, and the first component 131 blocks an inlet of the first air duct 122 to filter, remove dust or reduce noise of the airflow in the first air duct 122. The position where the first member 131 is provided is not limited to this, and for example, the outer peripheral wall of the first holder 121 may be provided with the first member 131; for another example, the first member 131 may be disposed on both the inner peripheral wall of the first bracket 121 and the outer peripheral wall of the first bracket 121, as long as the first member 131 blocks the inlet of the first air duct 122 to filter, remove dust or reduce noise of the airflow entering the first air duct 122 or the airflow flowing in the first air duct 122.

As shown in fig. 1-3, the vacuum cleaner 100 may further include a motor assembly 150, according to some embodiments of the present invention. Wherein, motor element 150 is arranged in fuselage 110, and motor element 150 is provided with motor wind channel 151 therein, and the export of motor wind channel 151 and first wind channel 122 communicates, and the export of motor wind channel 151 and the import of intercommunication wind channel 113 communicate. As shown in fig. 2 and 3, the airflow flows out of the first air duct 122 in the direction of arrow a6 and enters the motor air duct 151; in the motor air duct 151, the air flow flows out from the motor air duct 151 in the direction of the arrow a7 and flows into the communicating air duct 113 in the direction of the arrow a 8; in the communicating air duct 113, the air flow flows in the direction a8 and enters the second air duct 124 in the direction of the arrow a 9.

In order to simplify the structure of the bracket assembly 120 and the process of manufacturing and assembling the bracket assembly 120, the bracket assembly 120 may be an integrally formed part according to some embodiments of the present invention. It is understood that the bracket assembly 120 may be manufactured through an injection molding process such that the first bracket 121, the second bracket 123, and the third bracket 125 may be integrally formed through the injection molding process. On one hand, the assembly process between the first bracket 121, the second bracket 123, and the third bracket 125 may be omitted; on the other hand, the connection strength between the first bracket 121 and the second bracket 123 and the connection strength between the second bracket 123 and the third bracket 125 may be enhanced.

In some embodiments, the first component 131 may be a HEPA component, which is a common filtering and dust removing component in the field of the vacuum cleaner 100, and has a simple structure and low use cost. Of course, the first member 131 may also be a noise reducing member, which may be a member constructed of noise reducing cotton, and which may reduce the noise of the cleaner 100 by reducing the noise of the airflow. In addition, the second member 132 may also be a hepa or silencer; likewise, the third component 133 may also be a hepa or silencer component.

As shown in fig. 1 and 3, a cyclonic separation duct 114 may be disposed within the fuselage 110 according to some embodiments of the invention. When the airflow passes through the cyclone separation duct 114, impurities such as dust and impurities entrained in the airflow can be separated by using centrifugal force generated by the cyclone. As shown in fig. 3, the airflow enters the cyclone air duct 114 through the dust inlet 111, undergoes primary dust-air separation, and then enters the first air duct 122.

Further, as shown in fig. 1 and 2, the vacuum cleaner 100 may further include a cover member 160. The outer cover member 160 is externally sleeved on the first support 121, an outer peripheral wall of the first support 121 and an inner peripheral wall of the outer cover member 160 define a guide air duct 161, one end of the guide air duct 161 is communicated with the cyclone air duct 114, and the other end of the guide air duct 161 is communicated with an inlet of the first air duct 122. The outer peripheral wall of the outer cover member 160 and a part of the inner peripheral wall of the body 110 define a communication duct 113.

As shown in fig. 3, the airflow enters the cyclone air duct 114 from the dust air inlet 111 in the direction of the arrow a1, flows out of the cyclone air duct 114 in the direction of the arrow a4, and flows to the guide air duct 161; in the guide air duct 161, the guide air duct 161 surrounds the outer periphery of the first bracket 121, and the air flow enters the first air duct 122 along the direction shown by the arrow a5 under the guidance of the guide air duct 161; after flowing out of the first air duct 122, the airflow flows into the motor air duct 151 along the direction indicated by the arrow a6, and after flowing through the motor air duct 151, the airflow flows out of the motor air duct 151 along the direction indicated by the arrow a7 and flows into the communicating air duct 113 along the direction indicated by the arrow a 8; after flowing out of the communicating air duct 113, the air flow enters the second air duct 124 along the direction indicated by the arrow a 9; the airflow continues, flowing from within the second air duct 124 in the direction indicated by arrow a10, and flowing to the third air duct 126; after flowing in the third duct 126 in the direction of the arrow a11, the airflow flows out from the dust and air outlet 112 in the direction of the arrow a 12.

In order to improve the dust-air separation effect of the cyclone air duct 114, in some embodiments, the cyclone air duct 114 has a first cyclone separation device 115 and a second cyclone separation device 116 spaced apart from each other, and the airflow passes through the first cyclone separation device 115 and the second cyclone separation device 116 in sequence and flows into the guide air duct 161. It should be noted that when the airflow flows in the cyclone air duct 114, the airflow first passes through the first cyclone separation device 115, and the first cyclone separation is performed in the first cyclone separation device 115, that is, the airflow performs preliminary dust-gas separation at the first cyclone separation device 115; after passing through the first cyclone separation device 115, the airflow flows to the second cyclone separation device 116, and the second cyclone separation is performed in the second cyclone separation device 116, that is, the airflow performs the second dust-air separation at the second cyclone separation device 116; the airflow separated by the secondary dust and air is then guided to the guide duct 161.

In some embodiments, as shown in fig. 3, a sealing member 140 is provided between the first bracket 121 and the outer cover member 160 to prevent the guide duct 161 and the communication duct 113 from being spaced apart. Accordingly, the guide duct 161 and the communication duct 113 may be spaced apart, so that a closed duct may be defined, a flow path of the air flow may be defined, and thus a dust removing effect of the cleaner 100 may be enhanced. As shown in fig. 6, the sealing member 140 may be a ring-shaped gasket, and the ring-shaped sealing member 140 may be fitted over the first bracket 121. In order to improve the assembling stability of the sealing member 140, an annular groove for receiving the sealing member 140 may be provided on the first bracket 121.

In the description of the present invention, it is to be understood that the terms "central", "upper", "lower", "inner", "outer", "axial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. "plurality" means two or more.

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

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vacuum cleaner, comprising:

a body having a dust and air inlet and a dust and air outlet;

the support assembly is detachably connected with the machine body, a communicating air channel is defined between part of the peripheral wall of the support assembly and the machine body, the support assembly comprises a first support and a second support connected with the first support, a first air channel is arranged in the first support, the first air channel is directly or indirectly communicated with the dust and air inlet, a second air channel is arranged in the second support, the first air channel and the second air channel are communicated through the communicating air channel, and the second air channel is directly or indirectly communicated with the dust and air outlet;

the first component is connected with the first support and is used for dedusting or silencing air flow in the first air duct;

and the second component is connected with the second bracket and is used for removing dust or silencing the airflow in the second air duct.

2. The vacuum cleaner of claim 1, wherein the bracket assembly further includes a third bracket coupled to the second bracket, the third bracket having a third air duct therein, the third air duct being in communication with the second air duct;

the dust collector also comprises a third component, the third component is connected with the third support, the third component is used for removing dust or silencing air flow in the third air channel, and the third air channel is directly or indirectly communicated with the dust and air outlet.

3. The vacuum cleaner according to claim 2, wherein the third bracket is cylindrical, one of two ends of the third bracket in the axial direction is open, the other end of the third bracket is closed, one end of the third bracket is connected to the second bracket, and the second duct and the third duct are communicated through one end of the third bracket,

the outlet of the third air duct is arranged on the peripheral wall of the third support, at least one of the inner peripheral wall of the third support and the outer peripheral wall of the third support is provided with the third component, and the third component shields the outlet of the third air duct so as to remove dust or reduce noise of the airflow flowing out of the outlet of the third air duct.

4. The vacuum cleaner of claim 1, wherein the second bracket is cylindrical, one end of the second bracket is open, the other end of the second bracket is closed, the closed end of the second bracket is connected with the first bracket,

the inlet of the second air duct is arranged on the peripheral wall of the second bracket,

at least one of the outer peripheral wall of the second support and the inner peripheral wall of the second support is provided with the second component, and the second component shields the inlet of the second air duct so as to remove dust or eliminate noise of the air flow entering the second air duct.

5. The vacuum cleaner of claim 1, wherein the first bracket is cylindrical, one end of the first bracket is open, the other end of the first bracket is closed, and the closed end of the first bracket is connected with the second bracket;

the open end of the first bracket is an outlet of the first air duct, and an inlet of the first air duct is arranged on the peripheral wall of the first bracket;

at least one of the inner peripheral wall of the first support and the outer peripheral wall of the first support is provided with the first component, and the first component shields the inlet of the first air duct so as to remove dust or eliminate noise of the air flow entering the first air duct.

6. The vacuum cleaner of claim 1, further comprising:

the motor assembly is arranged in the machine body, a motor air duct is arranged in the motor assembly, an inlet of the motor air duct is communicated with an outlet of the first air duct, and an outlet of the motor air duct is communicated with an inlet of the communicated air duct.

7. The vacuum cleaner of claim 1, wherein the bracket assembly is an integrally formed part.

8. The vacuum cleaner of claim 1, wherein the first component is a piece of HEPA or a layer of sound damping cotton.

9. The vacuum cleaner as claimed in claim 1, wherein a cyclone duct is provided in the main body,

the dust collector also comprises an outer cover piece, the outer cover piece is sleeved outside the first support, a guide air duct is defined by the outer peripheral wall of the first support and the inner peripheral wall of the outer cover piece, one end of the guide air duct is communicated with the cyclone separation air duct, and the other end of the guide air duct is communicated with an inlet of the first air duct;

the outer peripheral wall of the outer cover piece and the partial inner peripheral wall of the machine body define the communication air duct.

10. The vacuum cleaner of claim 9, wherein the cyclonic separation duct has first and second spaced cyclonic separation devices therein, the airflow passing through the first and second cyclonic separation devices in sequence into the guide duct.

11. The vacuum cleaner of claim 9, wherein a seal is provided between the first bracket and the cover member to prevent the guide duct and the communication duct from being spaced apart.