Vacuum cleaner

Abstract

The present invention provides a vacuum cleaner, comprising a vacuum cleaner main unit (10) and a motor assembly, wherein the vacuum cleaner main unit (10) has a motor cavity (20) and a filter (40) located outside the motor cavity (20), the motor assembly is located in the motor cavity (20), and the motor assembly comprises a motor cover (22) and a motor (21) located in the motor cover (22); the motor (21) has an output shaft, two first air outlets and at least two fan blades (211), the at least two fan blades (211) are respectively located at two ends of the output shaft, and the two first air outlets are respectively opposite to the two ends of the output shaft; the motor cover (22) has two second air outlets (221), and the second air outlets (221) are respectively connected to the first air outlets. The vacuum cleaner provided by the present invention improves the suction force of the vacuum cleaner motor, has low noise, and is low in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and in particular to a vacuum cleaner. Background Art

[0002] With the development of science and technology, many products are becoming more and more convenient to use in our lives. Cleaning has also been completely replaced by scientific and technological products. For example, the popularity of vacuum cleaners is the most significant manifestation. Vacuum cleaners can be divided into barrel vacuum cleaners, horizontal vacuum cleaners and handheld vacuum cleaners according to their structure. Barrel vacuum cleaners, horizontal vacuum cleaners and handheld vacuum cleaners are used in different places. The working principle of a vacuum cleaner is: the motor drives the blades to rotate, generating negative pressure in the sealed shell to suck in dust.

[0003] In existing vacuum cleaners, the rotation speed of the motor is increased, or larger fan blades are used to further increase the suction power of the vacuum cleaner.

[0004] However, as the motor speed increases, the motor is prone to generate greater vibrations during operation, which increases the noise of the vacuum cleaner. If large fan blades are used, the noise of the vacuum cleaner will also increase and the cost of the vacuum cleaner will increase. Summary of the invention

[0005] In order to solve at least one of the problems mentioned in the background technology, the present invention provides a vacuum cleaner, which improves the suction power of the vacuum cleaner motor, has low noise and low cost.

[0006] In order to achieve the above-mentioned object, the present invention provides a vacuum cleaner, comprising a vacuum cleaner main body and a motor assembly, wherein the vacuum cleaner main body has a motor cavity and a filter located outside the motor cavity, the motor assembly is located in the motor cavity, and the motor assembly comprises a motor cover and a motor located in the motor cover;

[0007] The motor has an output shaft, two first air outlets and at least two fan blades, the at least two fan blades are respectively located at two opposite ends of the output shaft, and the two first air outlets are respectively opposite to the two ends of the output shaft;

[0008] The motor cover has two second air outlets, and the second air outlets are respectively connected with the first air outlets.

[0009] In the vacuum cleaner provided by the embodiment of the present invention, at least one fan blade is connected to both ends of the motor output shaft, forming a motor with at least two fan blades. In this way, the main shaft of the motor rotates, and at the same time drives at least two fan blades to rotate, thereby increasing the suction capacity of the motor, allowing the vacuum cleaner to inhale more air, that is, improving the suction force of the vacuum cleaner. There is no need to increase the motor speed, and there is no need to increase the size of the fan blade, so that the motor is prevented from generating large vibrations during operation, reducing the noise of the vacuum cleaner, and reducing the cost of the vacuum cleaner. In addition, the motor cover has two second air outlets, and the fan blades at different ends of the motor output shaft can be discharged in time through different second air outlets. The filter is used to filter the gas entering the motor cavity.

[0010] As an optional method, the vacuum cleaner provided in an embodiment of the present invention has two fan blades, and the motor assembly also includes an air inlet channel and two air outlet channels, each air outlet channel is connected to the second air outlet, the motor has an air inlet connected to the second air outlet, and the air inlet channel is connected to the air inlet.

[0011] In the vacuum cleaner provided by the embodiment of the present invention, one air inlet channel can be provided, and the air inlet channel is connected to the two air inlets of the motor, and the two air inlets share one air inlet channel. In this way, the wind entering from the air inlet channel can be quickly discharged from the motor through different fan blades and the air outlet channel, so that the motor can absorb air more smoothly when working.

[0012] As an optional manner, in the vacuum cleaner provided in an embodiment of the present invention, the motor cover includes a first cover body and a second cover body, the first cover body and the second cover body are assembled together to form a accommodating chamber for accommodating the motor, and the air inlet channel and each air outlet channel are connected to the accommodating chamber.

[0013] The accommodating cavity is formed by the first cover body and the second cover body being assembled together, so that the motor can be conveniently placed in the accommodating cavity.

[0014] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the first cover body and the second cover body are detachably connected.

[0015] In this way, it is convenient to disassemble the first cover body and the second cover body, and to install and repair the motor located in the motor cover.

[0016] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the two air outlet channels are symmetrical with respect to the air inlet channel.

[0017] In this way, the two air outlet channels can discharge air evenly.

[0018] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the two air outlet channels are in a rotating shape, and the rotation centers of the two air outlet channels and the axis of the motor are located on the same straight line.

[0019] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the air inlet channel is in a rotating shape, and the rotation center of the air inlet channel is perpendicular to the axis of the motor.

[0020] In this way, the two air outlet channels, the air inlet channel and the accommodating cavity form a structure similar to a three-way pipe, the axes of the two air outlet channels are located on the same straight line, and the axis of the air inlet channel is perpendicular to the axis of the air outlet channel. In this way, the two fan blades can evenly inlet and outlet air.

[0021] As an optional manner, in the vacuum cleaner provided in an embodiment of the present invention, the motor assembly further includes at least two mufflers, and the mufflers are located in the air outlet channel.

[0022] The vacuum cleaner provided by the embodiment of the present invention reduces the noise generated by the motor when it is working by means of the muffler when air is discharged from the air outlet channel, thereby reducing the noise generated by the vacuum cleaner when it is working.

[0023] As an optional method, the vacuum cleaner provided in the embodiment of the present invention has a main body air inlet channel and a main body air outlet, a dust collecting chamber is provided in the main body of the vacuum cleaner, a dust collecting cylinder is provided in the dust collecting chamber, and the main body air inlet channel is connected with the air inlet channel through the dust collecting cylinder;

[0024] The motor cavity is communicated with the main unit air outlet, and the number of the main unit air outlets is two. The two main unit air outlets are respectively opposite to the air outlet channel and communicated with the air outlet channel.

[0025] In the vacuum cleaner provided by the embodiment of the present invention, the air inlet channel of the main unit is connected with the air inlet channel through the dust collecting cylinder, and the air entering the motor is purified by the dust collecting cylinder to prevent dust and other impurities from entering the motor and damaging the motor. The air discharged from the air outlet of the motor cover directly flows out of the main unit air outlet through the air outlet channel, so that the vacuum cleaner can exhaust air smoothly.

[0026] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the vacuum cleaner main unit includes a vacuum cleaner shell, the motor cavity is located in the vacuum cleaner shell, and two main unit air outlets are located on the vacuum cleaner shell.

[0027] As an optional manner, in the vacuum cleaner provided in the embodiment of the present invention, the air outlet of the host is in a grid shape or a perforated plate shape.

[0028] That is to say, the main unit air outlet is an exhaust port arranged on the vacuum cleaner shell. The grid-shaped or perforated plate-shaped main unit air outlet can prevent larger impurities from entering the vacuum cleaner shell while exhausting air.

[0029] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the axis of the air inlet channel is colinear with the axis of the dust collecting cylinder.

[0030] In this way, the air purified by the dust collecting tube can smoothly enter the motor through the air inlet channel.

[0031] As an optional manner, in the vacuum cleaner provided by an embodiment of the present invention, the filter is located between the dust collecting cylinder and the air inlet channel.

[0032] In the vacuum cleaner provided by the embodiment of the present invention, the filter is used to filter impurities such as dust in the air. The filter is arranged between the dust collecting tube and the air inlet channel. The filter can filter the air in the dust collecting tube that is not fully purified, thereby preventing impurities such as dust from entering the motor and damaging the motor.

[0033] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the vacuum cleaner main unit has a hand-held portion, the hand-held portion is opposite to the main unit air inlet channel, the motor cavity is located above the hand-held portion, and the main unit air outlet is located on the side of the motor cavity.

[0034] In the vacuum cleaner provided by the embodiment of the present invention, the main unit air inlet channel can be called the front part of the vacuum cleaner, the handheld part is opposite to the main unit air inlet channel, and the handheld part is the rear part of the vacuum cleaner. The handheld part is arranged at the rear part of the vacuum cleaner, and the handheld part does not affect the main unit air inlet channel from sucking air, so that the main unit air inlet channel can suck air smoothly, and the air inlet and air outlet of the vacuum cleaner do not affect each other. The main unit air outlet is located on the side of the motor cavity, so that when the handheld part is held, the air is discharged from the main unit air outlet above the handheld part, and will not be vertical to the user's hand.

[0035] The construction of the present invention and other objects and advantageous effects thereof will become more apparent through the description of the preferred embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A schematic diagram of the structure of a vacuum cleaner provided by an embodiment of the present invention;

[0038] Figure 2 A bottom view of a vacuum cleaner provided by an embodiment of the present invention;

[0039] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0040] Figure 4 A rear view of a vacuum cleaner provided by an embodiment of the present invention;

[0041] Figure 5 for Figure 4Cross-sectional view of the middle BB;

[0042] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0043] Figure 7 A schematic structural diagram of a motor assembly in a vacuum cleaner provided by an embodiment of the present invention.

[0044] Description of reference numerals:

[0045] 10- Vacuum cleaner host;

[0046] 11- Host air inlet channel;

[0047] 12-Host air outlet;

[0048] 20-motor cavity;

[0049] 21-motor; 211-fan blade; 212-air inlet;

[0050] 22-motor cover; 221-second air outlet; 222-first cover body; 223-second cover body; 224-accommodating cavity; 2241-supporting part; 2242-buffer;

[0051] 23- air inlet channel;

[0052] 24- air outlet channel;

[0053] 30-dust collecting chamber;

[0054] 31-dust collecting tube;

[0055] 40 - filter;

[0056] 50-Handheld part. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme in the embodiment of the present invention will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present invention, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The embodiments of the present invention are described in detail below in conjunction with the drawings.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0060] In the description of the present invention, "plurality" means two or more than two, unless otherwise precisely and specifically specified.

[0061] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0062] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0063] Figure 1 A schematic diagram of the structure of a vacuum cleaner provided by an embodiment of the present invention; Figure 2 A bottom view of a vacuum cleaner provided by an embodiment of the present invention; Figure 3 for Figure 2 Sectional view of AA in the middle; Figure 4 A rear view of a vacuum cleaner provided by an embodiment of the present invention; Figure 5 for Figure 4 Cross-sectional view of the middle BB;

[0064] Figure 6 for Figure 5 A partial enlarged view of point C in the middle; Figure 7This is a schematic diagram of the structure of a motor assembly in a vacuum cleaner provided by an embodiment of the present invention. Figures 1 to 7 The embodiment of the present invention provides a vacuum cleaner, including a vacuum cleaner host 10 and a motor assembly, wherein the vacuum cleaner host 10 has a motor cavity 20 and a filter 40 located outside the motor cavity 20, the filter 40 is used to filter the gas entering the motor cavity 20, the motor assembly is located in the motor cavity 20, and the motor assembly includes a motor cover 22 and a motor 21 located in the motor cover 22;

[0065] The motor 21 has an output shaft, two first air outlets and at least two fan blades 211, wherein the at least two fan blades 211 are respectively located at two opposite ends of the output shaft, and the two first air outlets are respectively opposite to the two ends of the output shaft;

[0066] The motor cover 22 has two second air outlets 221 , and the second air outlets 221 are respectively connected to the first air outlets.

[0067] Specifically, in the vacuum cleaner provided by the embodiment of the present invention, at least one fan blade 211 is connected to both ends of the output shaft of the motor 21, forming a motor 21 with at least two fan blades 211. The output shaft of the motor 21 drives at least two fan blades 211 to rotate at the same time. The output shaft of the motor 21 rotates, and at least two fan blades 211 are driven to rotate at the same time, thereby increasing the suction capacity of the motor 21, so that the vacuum cleaner can inhale more air, that is, the suction force of the vacuum cleaner is improved. There is no need to increase the motor speed, and there is no need to increase the size of the fan blade, so that the motor is prevented from generating large vibrations during operation, the noise of the vacuum cleaner is reduced, and the cost of the vacuum cleaner is reduced. In addition, the motor cover 22 has two second air outlets 221. The fan blades 211 at different ends of the output shaft of the motor 21 pass through the first air outlet and can be discharged in time through the second air outlet 221 of the motor cover 22.

[0068] See also Figure 6 As shown, the vacuum cleaner provided by the embodiment of the present invention has two fan blades 211, and the two fan blades 211 are respectively located at two opposite ends of the motor 21. The motor assembly also includes an air inlet channel 23 and two air outlet channels 24, and each air outlet channel 24 is connected to the second air outlet 221. The motor 21 has an air inlet 212 connected to the second air outlet 221, and the air inlet channel 23 is connected to the air inlet 212.

[0069] In a specific implementation, in order to prevent the two fan blades 211 from affecting each other when rotating to absorb air, there are two air inlets 212. Specifically, one air inlet channel 23 can be provided, and the air inlet channel 23 is connected to both air inlets 212 of the motor 21, and the two air inlets 212 share one air inlet channel 23. In this way, the wind entering from the air inlet channel 23 can be quickly discharged from the motor 21 through different fan blades 211 and the air outlet channel 24, so that the air inlet of the motor 21 is smoother when working.

[0070] In order to facilitate the processing of the air inlet channel 23 , each air outlet channel 24 and the motor cover 22 , in some embodiments, the air inlet channel 23 , each air outlet channel 24 and the motor cover 22 are integrally formed.

[0071] See also Figures 5 to 7 As shown, in the vacuum cleaner provided by the embodiment of the present invention, the motor cover 22 includes a first cover body 222 and a second cover body 223, the first cover body 222 and the second cover body 223 are assembled together to form a accommodating chamber 224 for accommodating the motor 21, and the air inlet channel 23 and each air outlet channel 24 are connected to the accommodating chamber 224.

[0072] Specifically, the accommodating cavity 224 may be a cavity of the outer shell covering the motor 21, and the shape of the accommodating cavity 224 matches the outer shell of the motor 21, so that the accommodating cavity 224 also plays a role in supporting and fixing the motor 21. Exemplarily, if the outer shell of the motor 21 is a cylinder, the accommodating cavity 224 is a cylindrical cavity. The shape of the accommodating cavity 224 is not limited in this embodiment.

[0073] The motor 21 will generate vibrations during operation, which will cause the vacuum cleaner to make a lot of noise when in use. In some embodiments, at least two support parts 2241 may be provided in the accommodating chamber 224, and each support part 2241 is used to support the end of the motor 21, and at the same time, a buffer 2242 is provided between the motor 21 and the accommodating chamber 224, and the buffer 2242 fills the gap between the housing of the motor 21 and the support part 2241, so that the motor 21 is not easy to shake during operation, and at the same time, the vibration generated by the motor 21 during operation is reduced through the shock-absorbing effect of the buffer 2242. Among them, the buffer 2242 can be a rubber pad.

[0074] Specifically, a first through hole may be provided at a position opposite to the two blades 211 of the accommodating cavity 224, and the first through hole serves as the second air outlet 221 of the motor cover 22, and the air outlet channel 24 is connected to the first through hole. The air outlet channel 24 may be a tubular channel, and the inner diameter of the air outlet channel 24 is the same as the diameter of the first through hole, one end of the air outlet channel 24 is connected to the edge of the first through hole, or the diameter of the first through hole is smaller than the inner diameter of the air outlet channel 24.

[0075] A second through hole is provided at a position opposite to the air inlet channel 23 in the accommodating chamber 224 . The air inlet channel 23 is connected to the second through hole. The gas enters the accommodating chamber 224 through the air inlet channel 23 , and then enters the air inlet 212 of the motor 21 through the accommodating chamber 224 .

[0076] The accommodating cavity 224 is formed by the first cover body 222 and the second cover body 223 being assembled together, so that the motor 21 can be conveniently placed in the accommodating cavity 224 .

[0077] Exemplarily, the cylindrical motor cover 22 can be cut along the axis of the motor 21 to form an arc-shaped first cover body 222 and an arc-shaped second cover body 223. When installing the motor 21, the motor 21 is first placed in the first cover body 222 or the second cover body 223, and the end of the motor 21 is supported by the support part 2241, and then the second cover body 223 or the first cover body 222 is covered; the cylindrical motor cover 22 can also be cut along the axis perpendicular to the motor 21 to form a cylindrical first cover body 222 and a cylindrical second cover body 223. When installing the motor 21, the first cover body 222 and the second cover body 223 are respectively inserted into the motor 21 through the two ends of the motor 21 until the second cover body 223 and the first cover body 222 are abutted.

[0078] Optionally, the first cover 222 and the second cover 223 are detachably connected. Specifically, after the first cover 222 and the second cover 223 are assembled together, they are detachably connected through a connecting piece. In this way, it is convenient to disassemble the first cover 222 and the second cover 223 to repair and maintain the motor 21. In a specific implementation, the connecting piece can be a screw, a bolt or a buckle. This embodiment is not limited here.

[0079] Optionally, the outer side walls of the first cover body 222 and the second cover body 223 may be detachably connected by means of a clamp, a bolt, etc., so as to further increase the stability of the connection between the first cover body 222 and the second cover body 223 .

[0080] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the two air outlet channels 24 are symmetrical with respect to the air inlet channel 23. In this way, the air outlet channels 24 can discharge air evenly.

[0081] In a specific implementation, the two air outlet channels 24 are in a rotating shape, and the rotation centers of the two air outlet channels 24 are located on the same straight line as the axis of the motor 21. For example, the air outlet channels 24 may be in a tubular shape.

[0082] The air inlet channel 23 is in a rotational shape, and the rotation center of the air inlet channel 23 is perpendicular to the axis of the motor 21. For example, the air inlet channel 23 may be in a tubular shape.

[0083] In this way, the two air outlet channels 24, the air inlet channel 23 and the accommodating chamber 224 form a structure similar to a three-way pipe, the axes of the two air outlet channels 24 are located on the same straight line, and the axis of the air inlet channel 23 is perpendicular to the axis of the air outlet channel 24. In this way, the two fan blades 211 can evenly inlet and outlet air.

[0084] In order to reduce the noise generated when the vacuum cleaner is working, further, the vacuum cleaner provided by the embodiment of the present invention, the motor assembly also includes at least two mufflers (not shown in the figure), and the mufflers are located in the air outlet channel 24. Specifically, the air is discharged through the air outlet channel 24, and when the air is discharged from the air outlet channel 24, the noise generated when the motor 21 is working is reduced by the muffler, thereby reducing the noise generated when the vacuum cleaner is working.

[0085] Specifically, the silencer can be detachably arranged on the inner wall of the air outlet channel 24. In order not to affect the air outlet of the air outlet channel 24, the silencer can be a silencer inside the orifice plate.

[0086] See also Figures 3 to 6 As shown, in the vacuum cleaner provided by the embodiment of the present invention, the vacuum cleaner host 10 has a host air inlet channel 11 and a host air outlet 12, the vacuum cleaner host 10 has a dust collecting chamber 30, the dust collecting chamber 30 has a dust collecting cylinder 31, and the host air inlet channel 11 is connected to the air inlet channel 23 through the dust collecting cylinder 31;

[0087] The motor cavity 20 is communicated with the main unit air outlet 12 . There are two main unit air outlets 12 . The two main unit air outlets 12 are respectively opposite to and communicated with the air outlet channels 24 .

[0088] Specifically, after starting the motor 21, the air outside the vacuum cleaner enters the dust collecting chamber 30 inside the vacuum cleaner through the main unit air inlet channel 11, and the dust collecting tube 31 in the dust collecting chamber 30 collects dust and other impurities in the air to purify the air sucked into the vacuum cleaner. The purified air enters the accommodating chamber 224 through the air inlet channel 23 of the motor 21, enters the motor 21 through the air inlet 212 of the motor 21 in the accommodating chamber 224, and then flows out of the vacuum cleaner through the second air outlet 221 of the motor cover 22, the air outlet channel 24 and the main unit air outlet 12 in turn.

[0089] In a specific implementation, the main unit air outlet 12 can be located on the side wall of the motor cavity 20, and the end of the air outlet channel 24 abuts against the main unit air outlet 12, that is, one end of the air outlet channel 24 is connected to the first through hole of the accommodating cavity 224, and the other end of the air outlet channel 24 abuts against the main unit air outlet 12, and the air discharged from the air outlet of the motor 21 directly flows out of the main unit air outlet 12 through the air outlet channel 24.

[0090] In the vacuum cleaner provided by the embodiment of the present invention, the main unit air inlet channel 11 is connected to the air inlet channel 23 through the dust collecting tube 31, and the air entering the motor 21 is purified by the dust collecting tube 31 to prevent dust and other impurities from entering the motor 21 and damaging the motor 21. The air discharged from the second air outlet 221 of the motor cover 22 directly flows out of the main unit air outlet 12 through the air outlet channel 24, so that the vacuum cleaner can exhaust air smoothly.

[0091] The vacuum cleaner provided by the embodiment of the present invention comprises a vacuum cleaner main unit 10 including a vacuum cleaner housing, a motor cavity 20 located in the vacuum cleaner housing, and two main unit air outlets 12 located on the vacuum cleaner housing. In other words, the main unit air outlets 12 are exhaust ports arranged on the vacuum cleaner housing.

[0092] The main unit air outlet 12 is in a grid or perforated plate shape, which can prevent larger impurities from entering the vacuum cleaner housing while exhausting air.

[0093] Optionally, in the vacuum cleaner provided by the embodiment of the present invention, the axis of the air inlet channel 23 is colinear with the axis of the dust collecting cylinder 31. In this way, it is convenient to smoothly pass the air purified by the dust collecting cylinder 31 into the motor 21 through the air inlet channel 23.

[0094] Among them, optionally, in the vacuum cleaner provided by the embodiment of the present invention, the axis of the dust collecting cylinder 31 is perpendicular to the axis of the motor 21. In this way, it is convenient to evenly pass the air purified by the dust collecting cylinder 31 through the air inlet channel 23 and the fan blade 211 into the motor 21.

[0095] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the filter 40 is located between the dust collecting cylinder 31 and the air inlet channel 23 .

[0096] The filter 40 is used to filter impurities such as dust in the air. The filter 40 is set between the dust collecting tube 31 and the air inlet channel 23. The filter 40 can filter the air in the dust collecting tube 31 that is not fully purified, thereby preventing impurities such as dust from entering the motor 21 and damaging the motor 21.

[0097] See also Figures 1 to 5 As shown, the vacuum cleaner provided by the embodiment of the present invention has a vacuum cleaner host 10 with a handheld portion 50 , the handheld portion 50 is opposite to the host air inlet channel 11 , the motor cavity 20 is located above the handheld portion 50 , and the host air outlet 12 is located on the side of the motor cavity 20 .

[0098] Specifically, the hand-held portion 50 makes it easy to hold the vacuum cleaner when in use. The vacuum cleaner is sucked into the vacuum cleaner through the motor 21, and the air is sucked into the vacuum cleaner through the main unit air inlet channel 11, and enters the motor 21 through the dust collecting tube 31 and the filter 40 in turn, and then is discharged through the second air outlet 221 of the motor cover 22 and the main unit air outlet 12.

[0099] The main unit air inlet channel 11 can be called the front part of the vacuum cleaner, and the handheld part 50 is opposite to the main unit air inlet channel 11. The handheld part 50 is the rear part of the vacuum cleaner. The handheld part 50 is arranged at the rear part of the vacuum cleaner, and the handheld part 50 does not affect the main unit air inlet channel 11 to inhale air, so that the main unit air inlet channel 11 can smoothly inhale air, and the air inlet and outlet of the vacuum cleaner do not affect each other. The main unit air outlet 12 is located on the side of the motor cavity 20, so that when the handheld part 50 is held, the air is discharged from the main unit air outlet 12 above the handheld part 50, and will not be vertical to the user's hand.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vacuum cleaner, characterized in that: The vacuum cleaner comprises a main unit (10) and a motor assembly, wherein the main unit (10) has a motor cavity (20) and a filter (40) located outside the motor cavity (20), the motor assembly is located in the motor cavity (20), and the motor assembly comprises a motor cover (22) and a motor (21) located in the motor cover (22); The motor (21) comprises an output shaft, two first air outlets and at least two fan blades (211), wherein the at least two fan blades (211) are respectively located at two ends of the output shaft, and the two first air outlets are respectively opposite to the two ends of the output shaft; The motor cover (22) has two second air outlets (221), and the second air outlets (221) are respectively connected to the first air outlets; The number of the fan blades (211) is two, the motor assembly further comprises an air inlet channel (23) and two air outlet channels (24), each of the air outlet channels (24) is correspondingly connected to the second air outlet (221), the motor (21) has an air inlet (212) connected to the second air outlet (221), and the air inlet channel (23) is connected to the air inlet (212); The motor cover (22) comprises a first cover body (222) and a second cover body (223), the first cover body (222) and the second cover body (223) are assembled together to form a receiving chamber (224) for receiving the motor (21), and the air inlet channel (23) and each of the air outlet channels (24) are connected to the receiving chamber (224); The axes of the two air outlet channels (24) are located on the same straight line, the axis of the air inlet channel (23) is perpendicular to the axis of the air outlet channel, and the two air outlet channels (24) are symmetrical relative to the air inlet channel (23).

2. The vacuum cleaner according to claim 1, characterized in that: The first cover body (222) and the second cover body (223) are detachably connected.

3. The vacuum cleaner according to claim 1, characterized in that: The two air outlet channels (24) are in a rotational shape, and the rotation centers of the two air outlet channels (24) and the axis of the motor (21) are located on the same straight line.

4. The vacuum cleaner according to claim 1, characterized in that: The air inlet channel (23) is in a rotational shape, and the rotation center of the air inlet channel (23) is perpendicular to the axis of the motor (21).

5. The vacuum cleaner according to claim 1, characterized in that: The motor assembly further comprises at least two silencers, wherein the silencers are located in the air outlet channel (24).

6. The vacuum cleaner according to any one of claims 1 to 5, characterized in that: The vacuum cleaner main unit (10) comprises a main unit air inlet channel (11) and a main unit air outlet (12); the vacuum cleaner main unit (10) comprises a dust collecting chamber (30); the dust collecting chamber (30) comprises a dust collecting cylinder (31); the main unit air inlet channel (11) is connected to the air inlet channel (23) via the dust collecting cylinder (31); The motor cavity (20) is in communication with the main unit air outlet (12), the number of the main unit air outlet (12) is two, and the two main unit air outlets (12) are respectively opposite to the air outlet channel (24) and in communication with the air outlet channel (24).

7. The vacuum cleaner according to claim 6, characterized in that: The vacuum cleaner main unit (10) comprises a vacuum cleaner shell, the motor cavity (20) is located inside the vacuum cleaner shell, and the two main unit air outlets (12) are located on the vacuum cleaner shell.

8. The vacuum cleaner according to claim 7, characterized in that: The main unit air outlet (12) is in a grid shape or a perforated plate shape.

9. The vacuum cleaner according to claim 6, characterized in that: The axis of the air inlet channel (23) is colinear with the axis of the dust collecting cylinder (31).

10. The vacuum cleaner according to claim 6, characterized in that: The filter (40) is located between the dust collecting cylinder (31) and the air inlet channel (23).

11. The vacuum cleaner according to claim 6, characterized in that: The vacuum cleaner main unit (10) has a hand-held portion (50), the motor cavity (20) is located above the hand-held portion (50), and the main unit air outlet (12) is located on the side of the motor cavity (20).

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