CN220608256U

CN220608256U - Cleaning apparatus

Info

Publication number: CN220608256U
Application number: CN202320968994.0U
Authority: CN
Inventors: 岑道朝; 宫海涛; 李湘宜
Original assignee: Shenzhen 3irobotix Co Ltd
Current assignee: Shenzhen 3irobotix Co Ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2024-03-19
Anticipated expiration: 2033-04-19

Abstract

The application discloses cleaning equipment belongs to clean household electrical appliances technical field. The cleaning equipment comprises a machine body shell, a lower fan shell and a fan, wherein the machine body shell defines a main air channel; the lower shell of the fan is arranged on the machine body shell and is used for limiting a first air inlet and a first air channel, and the first air inlet is communicated with the main air channel; the fan is arranged on the lower shell of the fan, the first air suction port of the fan is communicated with the first air inlet, and the first air outlet of the fan is communicated with the inlet of the first air duct; the axis of the fan forms an acute angle with the axis of the main air duct. Through the first induction port and first air intake and the main air duct intercommunication with the fan to make the dirt absorbing of fan accessible main air duct, realize dirt absorbing function, through being the acute angle setting with the axis of fan and the axis of main air duct, when simplifying installation space, the angle that makes the wind of main air duct get into the fan is smooth excessively, reduces windage, noise reduction.

Description

Cleaning apparatus

Technical Field

The application belongs to the technical field of cleaning household appliances, and particularly relates to cleaning equipment.

Background

The cleaning device is widely applied in the life of people, particularly the household cleaning device, is convenient to use and provides convenience for cleaning the user. The common household cleaning equipment generally uses a fan as a power source to generate negative pressure in the sealed cylinder so as to suck dust, hair, sewage and the like, thereby achieving the purpose of cleaning. However, the air flow of the fan can generate larger noise in the running process, and the air flow has a certain influence on the user experience.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides cleaning equipment for reducing air flow noise generated by the operation of a fan in the cleaning equipment.

In a first aspect, the present application provides a cleaning apparatus comprising:

a main air duct is defined by the main body shell;

the fan lower shell is arranged on the machine body shell, and defines a first air inlet and a first air channel, and the first air inlet is communicated with the main air channel;

the fan is arranged on the lower shell of the fan, the first air suction port of the fan is communicated with the first air inlet, and the first air outlet of the fan is communicated with the inlet of the first air duct; wherein the method comprises the steps of

The axis of the fan and the axis of the main air duct form an acute angle.

According to the cleaning equipment, the first air suction port is communicated with the first air inlet and the main air duct, so that the fan can pass through the main air duct to absorb dirt, dirt absorbing function is achieved, the axis of the fan and the axis of the main air duct are arranged at an acute angle, the installation space is simplified, meanwhile, the air in the main air duct enters the fan at an angle which is smooth and excessive, wind resistance is reduced, and noise is reduced.

According to an embodiment of the present application, the angle between the axis of the main air duct and the axis of the first air inlet is α, and the angle between the axis of the first air inlet and the axis of the first air inlet is β, which satisfies:

90°＜α≤β＜180°。

according to an embodiment of the present application, an angle between the axis of the main air duct and the axis of the first air inlet is α, which satisfies:

90°＜α＜180°。

according to an embodiment of the present application, an angle between the axis of the first air inlet and the axis of the first air inlet is β, which satisfies:

90°＜β＜180°。

according to one embodiment of the present application, the first air suction port is located at the bottom of the fan, the first air outlet is located at a side portion of the fan, and the height of the first air duct on the side where the first air outlet is located is greater than the height of the first air duct on the opposite side of the first air outlet.

According to one embodiment of the present application, at least one of the first porous sound-deadening member, the second porous sound-deadening member, and the third porous sound-deadening member is arranged in the first air duct;

the first porous silencing piece is arranged towards the first air outlet;

the second porous silencing piece is arranged in the middle of the first air duct;

the third porous silencing piece is arranged at the outlet of the first air duct.

According to one embodiment of the application, the cleaning device further comprises: at least one of the fourth porous sound deadening member and the fifth porous sound deadening member;

the fourth porous silencing piece is positioned on the outer wall of the lower fan shell;

the fifth porous silencing element is located in a region of the inner wall of the fuselage shell, which faces the fan.

According to one embodiment of the application, the cleaning device further comprises:

the fan is supported on the fan lower shell through the first soft rubber pad.

According to one embodiment of the present application, the fan lower case includes:

the fan is arranged on the lower shell, and the lower shell defines the first air inlet;

and the air duct cover is connected with the lower shell, and the air duct cover and the lower shell define the first air duct.

According to one embodiment of the application, a first sealing piece is arranged at the joint of the air duct cover and the lower shell.

the fan upper cover is arranged at the upper part of the fan and defines a second air inlet communicated with a second air suction port of the fan;

the fixed bolster, the fixed bolster install in the outside of fan, and follow the axial centre gripping of fan be in the fan upper cover with between the fan, the fixed bolster with the second wind channel is injectd to the fan, just the import of second wind channel with the second gas outlet intercommunication of fan, the fixed bolster is equipped with the intercommunication the via hole of second wind channel and external environment.

According to one embodiment of the application, a second sealing piece is arranged on the inner side of the top of the fixed support and clamped between the upper fan cover and the fan;

and/or the number of the groups of groups,

a third sealing piece is arranged on the outer side of the top of the fixed support and clamped between the upper fan cover and the lower fan shell;

and/or the number of the groups of groups,

and a fourth sealing piece is arranged on the outer side of the bottom of the fixed support, and is clamped between the fixed support and the outer wall of the fan.

According to one embodiment of the application, the second seal is integrated with the stationary support;

and/or, the third seal is integrated with the fixed bracket;

and/or the fourth sealing element is integrated with the fixed bracket.

According to one embodiment of the application, a sixth porous silencing piece is arranged between the outer side wall of the fixing support and the upper fan cover.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

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

FIG. 1 is one of the schematic structural views of a cleaning apparatus provided in an embodiment of the present application;

FIG. 2 is one of the partial cross-sectional schematic views of a cleaning apparatus provided in an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a schematic view of a partial structure of a cleaning apparatus according to an embodiment of the present application.

Reference numerals:

a cleaning device 100, a cleaning assembly 110;

a main body case 200, a main duct 210, and a fifth porous muffler 220;

the fan lower case 300, the lower case 310, the first air inlet 311, the air duct cover 320, the first air duct 330, the first porous sound deadening member 331, the second porous sound deadening member 332, the third porous sound deadening member 333, the fourth porous sound deadening member 340, the second soft rubber mat 350, and the first sealing member 360;

fan 400, first suction port 410, first air outlet 420, second suction port 430, second air outlet 440, first soft rubber pad 450, and fixing portion 460;

a fan upper cover 500 and a second air inlet 510;

the fixing bracket 600, the second sealing member 610, the third sealing member 620, the fourth sealing member 630, and the sixth porous sound absorbing member 640.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

A cleaning apparatus 100 according to an embodiment of the present application is described below with reference to fig. 1-4.

As shown in fig. 1 and 2, in the present embodiment, the cleaning apparatus 100 includes a main body case 200, a blower lower case 300, and a blower 400.

The main body case 200 defines a main duct 210. The cleaning assembly 110 is installed at the lower end of the main body case 200, the lower end of the main air duct 210 is used for communicating with the air inlet duct of the cleaning assembly 110, the cleaning assembly 110 cleans the surface of the object, and the main air duct 210 provides negative pressure to suck and recycle dust, hair, sewage and the like through the main air duct 210. The cleaning assembly 110 may be a floor brush assembly or a dust collection assembly, but is not limited thereto.

The fan lower case 300 is disposed on the body case 200, and defines a first air inlet 311 and a first air duct 330, and the first air inlet 311 communicates with the main air duct 210. The fan lower case 300 is used for installing the fan 400, a first air inlet 311 is arranged on the fan lower case 300, and the first air inlet 311 is connected with the upper end of the main air duct 210. The lower fan case 300 further defines a first air duct 330, and the first air duct 330 is used to discharge dirt sucked up by the main air duct 210 out of the lower fan case 300 into the collecting device of the cleaning apparatus 100.

In one example, the blower lower case 300 may be fixedly coupled with the body case 200.

In another example, the blower lower case 300 may be fixedly connected with the main duct 210 within the body case 200.

The fan 400 is mounted on the fan lower case 300, and the first air inlet 410 of the fan 400 is communicated with the first air inlet 311, and the first air outlet 420 of the fan 400 is communicated with the inlet of the first air duct 330. The blower 400 is fixedly installed on the blower lower case 300, the first suction port 410 of the blower 400 is communicated with the first air inlet 311, a negative pressure is manufactured through the blower 400, and the negative pressure is provided to the main air duct 210 through the first suction port 410 and the first air inlet 311 to suck dirt. The first air outlet 420 communicates with an inlet of the first air duct 330 to convey dirt absorbed by the blower 400 into the first air duct 330 through the first air outlet 420 to discharge the blower 400 and the blower lower case 300.

As shown in fig. 2, the axis of the blower 400 is at an acute angle to the axis of the main duct 210. By setting the included angle γ between the axis of the fan 400 and the axis of the main air duct 210 to be an acute angle, the air flow entering the fan 400 through the main air duct 210 forms a certain angle with the channel in the fan 400, and compared with the air flow vertically entering the fan in the main air duct in the related art, the air flow entering the fan 400 through the main air duct 210 forms an acute angle with the axis of the fan 400 in the embodiment, and the track of the air flow entering the fan 400 and flowing out of the fan 400 is smoother.

In addition, the axis of the fan 400 is also arranged at an acute angle with the axis of the machine body shell 200, so that the installation space inside the machine body shell 200 can be optimized, the gap between the lower fan shell 300 and the machine body shell 200 can be used for installing control elements such as a circuit board, and the like, the installation space is simplified, and the size is smaller.

In practical implementation, the axis of the fan 400 and the axis of the main air duct 210 are disposed at an acute angle, and can be matched with the installation position of the internal element of the machine body shell 200 during installation, so that the installation structure is more compact, the installation space is simplified, and the occupied space is smaller. In addition, because the axis of the fan 400 and the axis of the main air duct 210 are disposed at an acute angle, the air flow in the main air duct 210 enters the fan 400 through the first air inlet 311 and the first air inlet 410, and then the air flow path flowing out of the fan 400 through the first air inlet 410 is arc-shaped, so that the air flow path is smoother, the resistance of the air flow is reduced, and the air flow noise is reduced.

According to the cleaning device 100 provided in the embodiment of the application, the first air suction port 410 is communicated with the first air inlet 311 and the main air duct 210, so that the fan 400 can absorb dirt through the main air duct 210, a dirt absorbing function is realized, the axis of the fan 400 and the axis of the main air duct 210 are arranged at an acute angle, the installation space is simplified, meanwhile, the airflow can be smooth, the wind resistance is reduced, and the noise is reduced.

As shown in fig. 2, in some embodiments, the cross-sectional dimension of the first air inlet 311 is gradually increased along the direction approaching the main air duct, so as to increase the suction force of the blower 400. In order to facilitate the connection between the main air duct 210 and the first air inlet 410 by the first air inlet 311, the cross-sectional dimension of the end of the first air inlet 311 connected to the main air duct 210 is the same as the cross-sectional dimension of the main air duct 210, and the cross-sectional dimension of the end of the first air inlet 311 connected to the first air inlet 410 is the same as the cross-sectional dimension of the first air inlet 410. The central axes of the two sections of the first air inlet 311 may be coaxially disposed or may be different from each other, and are disposed according to actual installation conditions.

In some embodiments, the axis of the main air duct 210 is at an angle α with respect to the axis of the first air inlet 311, and the axis of the first air inlet 311 is at an angle β with respect to the axis of the first air inlet 410.

It will be appreciated that the greater the angle of α and β, the less resistance the airflow will pass through the corner. The smaller the angle, the greater the resistance to airflow through the corner.

1. Alpha and beta may satisfy: alpha is more than 90 degrees and less than or equal to beta is more than 180 degrees.

As shown in fig. 2, according to some embodiments of the present application, by setting the angle between the axis of the main air duct 210 and the axis of the first air inlet 311 to be an obtuse angle, the air flow in the main air duct 210 enters the first air inlet 311 excessively relatively smoothly, with little resistance. By setting the angle between the axis of the first air inlet 311 and the axis of the first air inlet 410 to be an obtuse angle, the air flow is relatively smooth in excess of entering the fan 400 through the first air inlet 311, and the resistance is small.

By making α be less than or equal to β, the extension line of the air flow direction at the first air inlet 410 will not intersect with the air flow direction of the main channel, and the path from the main channel through the first air inlet 311 to the first air inlet 410 is smoother, and the resistance is smaller.

While the resistance of the air flow passing through the first air inlet 311 and the first air inlet 410 is relatively reduced, the air flow is led to flow into the fan 400 in an S-shaped path, and when entering the fan 400, the air flow forms a certain included angle with the inner cavity of the fan 400, so that the resistance is smaller, and the sound is lower.

Based on the present embodiment, in one example, α=100°, β=120°; in another example, α=120°, β=150°; in yet another example, α=150°, β=160°.

2. Alpha may satisfy: alpha is less than 180 DEG and 90 deg.

According to some embodiments of the present application, the angle between the axis of the main air duct 210 and the axis of the first air inlet 311 is set to be an obtuse angle, so that the air duct of the air flow in the main air duct 210 entering the first air inlet 311 is arc-shaped, and the resistance is low and the noise is low.

In some embodiments, the angle β between the axis of the first air inlet 311 and the axis of the first air inlet 410 may be less than or equal to α. At this time, the air channel of the air flow is in an S-shaped arc, and can be matched with the position of the first air outlet 420 of the fan 400, when the first air outlet 420 is located on the side wall of the fan 400 and is located on the opposite side of the outlet direction of the first air inlet 311, the path of the air flow exiting the fan 400 can be smoother.

Based on the present embodiment, in one example, α=100°, β=100°; in another example, α=120°, β=100°; in yet another example, α=150°, β=120°.

In some embodiments, the angle β between the axis of the first air inlet 311 and the axis of the first air inlet 410 may be equal to 180 °, so that the resistance between the first air inlet 311 and the first air inlet 410 is minimized, and the air path is smoother.

Based on the present embodiment, in one example, α=100°; in another example, α=120°; in yet another example, α=150°.

In some embodiments, the angle β between the axis of the first air inlet 311 and the axis of the first air inlet 410 may be greater than 180 °. At this time, the air channel of the air flow is in a C-shaped arc, and can be matched with the position of the first air outlet 420 of the fan 400, when the first air outlet 420 is located on the side wall of the fan 400 and opposite to the outlet direction of the first air inlet 311, the air flow can be discharged from the fan 400 more smoothly.

3. Beta may satisfy: beta is smaller than 180 DEG and 90 deg.

According to some embodiments of the present application, by setting the angle between the axis of the first air inlet 311 and the axis of the first air inlet 410 to be an obtuse angle, the air flow is relatively smooth in excess of entering the blower 400 through the first air inlet 311, with little resistance.

In some embodiments, the angle α between the axis of the main air duct 210 and the axis of the first air inlet 311 may be equal to 180 °, so as to minimize the resistance between the main air duct 210 and the first air inlet 311 and reduce noise.

Based on the present embodiment, in one example, β=100°; in another example, β=120°; in yet another example, β=150°.

As shown in fig. 2, according to some embodiments of the present application, the first suction port 410 may be located at the bottom of the blower 400, and the first air outlet port 420 may be located at the side of the blower 400. The first air suction port 410 is located at the bottom of the blower 400 to be connected with the first air inlet 311, the first air outlet 420 is located at the side of the blower 400, and the axis of the first air outlet 420 extends along the radial direction of the blower 400, or the axis of the first air outlet 420 extends in a direction parallel to any diameter of the blower 400. Because the axis of the fan 400 and the main air duct 210 are arranged at an included angle, the axis of the first air outlet 420 and the axis of the main air duct 210 are arranged at an obtuse angle, so that the whole path of the air flow in the main air duct 210 flowing into the fan 400 and flowing out through the first air outlet 420 is smooth, the air flow resistance is small, and the noise is low.

As shown in fig. 2 and 4, in the present embodiment, the height of the first air duct 330 at the side of the first air outlet 420 may be greater than the height of the first air duct 330 at the opposite side of the first air outlet 420. The first air duct 330 is disposed around the fan 400, and the height of the first air duct 330 at the side of the first air outlet 420 is greater than the height of the first air duct 330 at the opposite side of the first air outlet 420, that is, the height of the inlet of the first air duct 330 is greater than the height of the outlet of the first air duct 330, and the first air duct 330 is spirally disposed downwards along the airflow direction. The first air duct 330 is spirally arranged, so that air flows in the first air duct 330 rotate, the air flow resistance is small, and the first air duct 330 is spirally downwards arranged, so that the length of the first air duct 330 is longer. The provision of the first air duct 330 lengthens the airflow path and reduces airflow resistance, thereby reducing airflow noise and noise at the outlet of the first air duct 330.

As shown in fig. 2, at least one of the first, second, and third porous sound deadening members 331, 332, 333 may be disposed within the first air duct 330 according to some embodiments of the present application. Noise generated by the air flow and noise generated by the motor of the fan 400 are silenced by providing the first, second and third porous silencing members 331, 332 and 333, thereby achieving a noise reduction effect. Among them, the first, second and third porous sound deadening members 331, 332 and 333 may be selectively provided according to the actual installation, and any one of them may be installed, or any two of them may be installed, or all three of them may be installed.

It is understood that the porous silencing member utilizes the porous characteristic thereof, and the air flow can pass through the small holes, so that the air flow can be not influenced, and a plurality of small cavities formed by the inner holes can be utilized to absorb the sound, thereby achieving the effect of reducing the noise.

In this embodiment, the first porous silencing member 331 may be disposed towards the first air outlet 420, the first porous silencing member 331 may be disposed in an annular shape, the first porous silencing member 331 is disposed around the inner side wall of the fan lower case 300, and at least a portion of the first porous silencing member 331 is opposite to the first air outlet 420, so that the air flowing out of the first air outlet 420 collides with the first porous silencing member 331, and the first porous silencing member 331 can perform a silencing effect on the noise sent by the motor of the fan 400 while performing a first silencing on the air flowing into the first air duct 330.

In this embodiment, the second porous noise reducing member 332 may be disposed at the middle of the first air duct 330, and by disposing the second porous noise reducing member 332 at the middle of the first air duct 330, the air flow may filter and reduce noise when flowing through the middle of the first air duct 330.

In the present embodiment, the third porous noise reducing member 333 may be disposed at the outlet of the first air duct 330, and noise is reduced by providing the third porous noise reducing member 333 at the outlet of the first air duct 330 when the air flow is discharged to the outside.

As shown in fig. 2, according to some embodiments of the present application, the cleaning apparatus 100 may further include at least one of a fourth porous sound attenuating 340 and a fifth porous sound attenuating 220.

In this embodiment, the fourth porous noise reducing member 340 may be located on the outer wall of the lower fan case 300, and the first porous noise reducing member 331 may be disposed around the outer wall of the lower fan case 300 or along a circumferential portion of the lower fan case 300, so that noise transmitted from the fan 400 to the outside through the lower fan case 300 is reduced by the fourth porous noise reducing member 340. Meanwhile, the fourth porous silencer 340 can be abutted with the structure in the machine body shell 200, so as to play a role in shock absorption.

In this embodiment, the fifth porous silencing element 220 may be located in a region of the inner wall of the main body housing 200 facing the fan 400, and since the axis of the fan 400 is disposed at an included angle with the axis of the main air duct 210, one end of the fan 400 is disposed near the main body housing 200, and the fifth porous silencing element 220 is disposed inside the corresponding main body housing 200, so as to reduce noise transmitted from the fan 400 to the outside through the main body housing 200, and further to play a role in damping the fan 400.

Note that the materials of the first porous sound attenuating member 331, the second porous sound attenuating member 332, the third porous sound attenuating member 333, the fourth porous sound attenuating member 340, and the fifth porous sound attenuating member 220 may include, but are not limited to, organic fibers, inorganic foams, and foamed plastics. The first, second, third, fourth and fifth porous sound deadening members 331, 332, 333, 340 and 220 may be provided in a sound deadening cotton shape.

As shown in fig. 2, the cleaning apparatus 100 may further include a first soft rubber pad 450 through which the blower 400 is supported to the blower lower case 300 according to some embodiments of the present application. The first soft rubber pad 450 is arranged at the lower end of the fan 400 and between the first air suction port 410 and the first air inlet 311, and the first soft rubber pad 450 is arranged between the fan 400 and the fan lower shell 300, so that the air gap between the first air suction port 410 and the first air inlet 311 can be sealed while the fan 400 is supported, and the damping effect can be achieved, so that noise caused by vibration is reduced.

As shown in fig. 2, in some embodiments, the first soft rubber pad 450 may be disposed in a ring shape, and a through hole in the middle of the first soft rubber pad 450 is used to connect the first air suction port 410 and the first air intake port 311, so that, for ventilation, the through hole of the first soft rubber pad 450 and the first air suction port 410 and the first air intake port 311 have the same cross-sectional dimension near one end of the first air suction port 410. And, the side of the first soft rubber pad 450 facing the fan 400 may further be provided with a supporting portion, and the supporting portion is in contact with the peripheral side of the lower end of the fan 400, so as to improve the stability of the fan 400.

As shown in fig. 2, in some embodiments, the cleaning apparatus 100 further includes a second soft rubber pad 350, and the lower end of the blower lower case 300 is supported within the body case 200 by the second soft rubber pad 350. Specifically, the second soft rubber pad 350 is disposed between the first air inlet 311 and the upper end of the main air duct 210, the second soft rubber pad 350 is disposed in a ring shape, and the second soft rubber pad 350 seals the gap between the first air inlet 311 and the main air duct 210, and plays a role in damping and supporting the fan lower case 300, so as to reduce noise caused by vibration.

The materials of the first and second soft rubber pads 450 and 350 are not limited herein, and may be, but not limited to, natural rubber, styrene-butadiene rubber, fluororubber, silicone rubber, and the like.

As shown in fig. 2, according to some embodiments of the present application, the blower lower case 300 may include a lower case 310 and an air duct cover 320, the blower 400 is mounted to the lower case 310, the lower case 310 defines a first air inlet 311, the air duct cover 320 is connected to the lower case 310, and the air duct cover 320 and the lower case 310 define a first air duct 330.

In the present embodiment, the first air inlet 311 is disposed on the lower housing 310, the lower housing 310 defines a portion of the first air duct 330 near the inlet, the air duct cover 320 is disposed on the outer side of the lower housing 310 and connected to the lower housing 310, the air duct cover 320 defines a portion of the first air duct 330 near the outlet, the air duct cover 320 and the lower housing 310 together define the first air duct 330, and the air duct cover 320 is detachably disposed on the lower housing 310. By providing the duct cover 320, the first duct 330 is convenient to clean and maintain.

As shown in fig. 2, in some embodiments, the second and third porous muffling members 332 and 333 are provided inside the air duct cover 320, which is facilitated by disassembling the air duct cover 320 and the lower housing 310 to clean and maintain the first air duct 330, and by replacing the second and third porous muffling members 332 and 333.

As shown in fig. 2, a first seal 360 is provided at the connection of the duct cover 320 and the lower case 310 according to some embodiments of the present application. By providing the first sealing member 360 to seal the gap between the air duct cover 320 and the lower housing 310, leakage of ash from the gap is avoided, and noise due to small-hole leakage can be reduced.

The first seal 360 may be a gasket or a sealant, and the gasket may be a rubber gasket, and the sealant may be a vulcanization type sealant, a thermal conversion type sealant, or the like, which is not limited herein.

In some embodiments, the air duct cover 320 may also be integrally provided with the lower case 310, and the installation structure is simple and easy to manufacture.

As shown in fig. 2 to 4, the cleaning apparatus 100 further includes a blower fan upper cover 500 and a fixing bracket 600 according to some embodiments of the present application.

In the present embodiment, the blower cover 500 is mounted to an upper portion of the blower 400, and defines a second air inlet 510 communicating with the second air inlet 430 of the blower 400. The blower fan upper cover 500 is installed at the upper portion of the blower fan 400 and is connected with the blower fan lower case 300 in a cover manner to form a sealed cavity, and negative pressure is manufactured by the blower fan 400 working in the sealed cavity.

The fan upper cover 500 defines a second air inlet 510 communicating with the second air inlet 430 of the fan 400, the second air inlet 430 of the fan 400 is disposed at the upper end of the fan 400, and the second air inlet 510 is disposed to allow the fan 400 to absorb external air through the second air inlet 430 to cool the fan 400.

In this embodiment, the fixing bracket 600 is mounted on the outer side of the blower 400, and is clamped between the blower upper cover 500 and the blower 400 along the axial direction of the blower 400, the fixing bracket 600 and the blower 400 define a second air duct, the inlet of the second air duct is communicated with the second air outlet 440 of the blower 400, and the fixing bracket 600 is provided with a through hole for communicating the second air duct with the external environment.

The middle part of the fan 400 is provided with a fixing part 460 which is arranged along the axis of the fan 400 in a surrounding way, the fixing support 600 is arranged on the outer side of the fan 400, the upper end of the fixing support 600 is propped against the fan upper cover 500, the lower end of the fixing support 600 is propped against the fixing part 460 of the fan 400, so that the fan 400 is fixed between the fan upper cover 500 and the fan lower shell 300, and the fan 400 is fixed and the axis is kept stable through the fixing support 600.

The fixing bracket 600 and the fan 400 define a second air channel, an inlet of the second air channel is communicated with a second air outlet 440 of the fan 400, the second air outlet 440 is arranged along the circumferential direction of the fan 400, the fan 400 sucks external cold air through the second air suction port 430 to cool a motor of the fan 400, and hot air is discharged through the second air channel, so that overheat protection of the motor of the fan 400 is avoided, and the fan 400 can keep stable operation.

As shown in fig. 2 and 3, at least one of the second seal 610, the third seal 620, and the fourth seal 630 may be provided on the fixing bracket 600 according to some embodiments of the present application.

In the present embodiment, the second sealing member 610 is provided at the top inner side of the fixing bracket 600, and the second sealing member 610 is clamped between the fan upper cover 500 and the fan 400. By providing the second sealing member 610, a gap between the fixing bracket 600 and the blower 400 is sealed, and leakage of gas from between the fixing bracket 600 and the blower 400 is prevented.

In the present embodiment, a third sealing member 620 is provided at the top outer side of the fixing bracket 600, and the third sealing member 620 is clamped between the fan upper cover 500 and the fan lower case 300. By providing the third seal 620, a gap between the blower 400 and the blower lower case 300 is sealed, and leakage of gas from between the blower upper cover 500 and the blower lower case 300 is prevented.

In the present embodiment, a fourth sealing member 630 is provided at the bottom outer side of the fixing bracket 600, and the fourth sealing member 630 is clamped between the fixing bracket 600 and the outer wall of the blower 400. By providing the fourth sealing member 630, a gap between the fixing bracket 600 and the blower 400 is sealed to prevent leakage of gas from the gap between the fixing bracket 600 and the blower 400, and to isolate the first air duct 330 from the second air duct.

In one example, the stationary bracket 600, the blower 400, the second seal 610, and the fourth seal 630 define a second air duct.

As shown in fig. 2 and 3, the second seal 610 is integrated with the stationary bracket 600 according to some embodiments of the present application; and/or, the third seal 620 is integrated with the fixing bracket 600; and/or, the fourth sealing member 630 is integrated with the fixing bracket 600. By integrally providing and producing the second, third and fourth seals 610, 620 and 630 with the fixing bracket 600, the process and assembly are simplified.

It should be noted that the second seal 610, the third seal 620, and the fourth seal 630 may be a sealing soft gel. The materials of the second sealing member 610, the third sealing member 620 and the fourth sealing member 630 may be rubber materials, and the rubber may be, but is not limited to, natural rubber, styrene-butadiene rubber, fluororubber, silicone rubber.

In other embodiments, the second sealing member 610, the third sealing member 620 and the fourth sealing member 630 may also be sleeved on the fixing bracket 600.

As shown in fig. 2 and 3, a sixth porous sound attenuating member 640 is provided between the outer sidewall of the fixing bracket 600 and the fan upper cover 500 according to some embodiments of the present application. The sixth porous silencing member 640 is provided to perform silencing and noise reduction functions on the airflow in the second air duct. The specific arrangement of the sixth porous silencing member 640 may refer to the arrangement of the porous silencing member, which will not be described herein.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the description of the present application, it should be understood that the terms "center," "length," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

In the description of the present application, "a first feature", "a second feature" may include one or more of the features.

In the description of the present application, the meaning of "plurality" is two or more.

In the description of this application, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact by another feature therebetween.

In the description of this application, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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 present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning apparatus, comprising:

a main air duct is defined by the main body shell;

The axis of the fan and the axis of the main air duct form an acute angle;

the first air suction port is positioned at the bottom of the fan, the first air outlet is positioned at the side part of the fan, and the height of the first air channel at the side where the first air outlet is positioned is larger than the height of the first air channel at the opposite side of the first air outlet.

2. The cleaning apparatus of claim 1, wherein an angle α of an axis of the main air duct to an axis of the first air intake, and an angle β of an axis of the first air intake to an axis of the first air intake satisfy:

90°＜α≤β＜180°。

3. the cleaning apparatus of claim 1, wherein an angle α of an axis of the main duct to an axis of the first air intake satisfies:

90°＜α＜180°。

4. the cleaning apparatus of claim 1, wherein an angle β of an axis of the first air intake relative to an axis of the first air intake satisfies:

90°＜β＜180°。

5. the cleaning apparatus of claim 1, wherein at least one of a first porous sound attenuating member, a second porous sound attenuating member, and a third porous sound attenuating member is disposed within the first air duct;

the first porous silencing piece is arranged towards the first air outlet;

6. The cleaning apparatus as recited in claim 1, further comprising: at least one of the fourth porous sound deadening member and the fifth porous sound deadening member;

7. The cleaning apparatus as recited in claim 1, further comprising:

the fan is supported on the fan lower shell through the first soft rubber pad.

8. The cleaning apparatus of claim 1, wherein the blower lower housing comprises:

9. The cleaning apparatus defined in claim 8, wherein a first seal is provided at a junction of the duct cover and the lower housing.

10. The cleaning apparatus defined in any one of claims 1-9, further comprising:

11. The cleaning apparatus of claim 10, wherein a second seal is provided on the inside top of the stationary support, the second seal being clamped between the fan upper cover and the fan;

and/or the number of the groups of groups,

12. The cleaning apparatus defined in claim 11, wherein the second seal is integral with the stationary support;

and/or, the third seal is integrated with the fixed bracket;

and/or the fourth sealing element is integrated with the fixed bracket.

13. The cleaning apparatus of claim 10, wherein a sixth porous sound attenuating element is disposed between the outer sidewall of the stationary support and the fan upper cover.