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 and at least two fan blades (211), and the at least two fan blades (211) are respectively located at opposite ends of the output shaft; the motor cover (22) has two air inlets, and the air inlets are respectively connected to the fan blades (211) at the two ends of the output shaft. The vacuum cleaner provided by the present invention improves the suction force of the vacuum cleaner motor.

Description

Technical Field

[0001] The 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 suction power of the vacuum cleaner is further improved by increasing the rotation speed of the motor or using larger fan blades.

[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] The invention provides a vacuum cleaner which can improve the suction force of a vacuum cleaner motor.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a vacuum cleaner, including a vacuum cleaner main body and a motor assembly, 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, the motor assembly includes a motor cover and a motor located in the motor cover; the motor has an output shaft and at least two fan blades, and the at least two fan blades are respectively located at opposite ends of the output shaft; the motor cover has two air inlets, and the air inlets are respectively connected to the fan blades at both ends of the output shaft.

[0007] The vacuum cleaner provided by the embodiment of the present invention is provided with a motor having at least two fan blades, the two fan blades are coaxially arranged, and each fan blade has an independent air inlet. In this way, the main shaft of the motor rotates, driving at least two fan blades to rotate at the same time, and the air intakes of the two fan blades do not interfere with each other, thereby increasing the air suction capacity of the motor, allowing the vacuum cleaner to inhale more air, that is, improving the suction power 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 blades, so as to avoid large vibrations of the motor during operation, increase the noise of the vacuum cleaner, and increase the cost of the vacuum cleaner. The filter is used to filter the gas entering the motor cavity.

[0008] As an optional manner, the vacuum cleaner provided in an embodiment of the present invention has two fan blades, and the motor assembly further includes a main air inlet channel and two auxiliary air inlet channels connected to the main air inlet channel, and each auxiliary air inlet channel is connected to the air inlet port.

[0009] The vacuum cleaner provided by the embodiment of the present invention has an air inlet channel corresponding to the motor, and the air inlet channel includes a main air inlet channel and two auxiliary air inlet channels connected to the main air inlet channel. Air is taken in through the main air inlet channel, and one auxiliary air inlet channel is connected to the air inlet corresponding to a fan blade, so that each fan blade has a separate auxiliary air inlet channel to avoid mutual influence between the two fan blades when they rotate to suck air.

[0010] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, each air inlet is perpendicular to the air inlet corresponding to the main air inlet channel.

[0011] In the vacuum cleaner provided by the embodiment of the present invention, the air inlet corresponding to each fan blade is perpendicular to the air inlet corresponding to the main air inlet channel, so that the two fan blades can evenly intake air.

[0012] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the auxiliary air inlet passage is arc-shaped, so that the air in the main air inlet passage can smoothly enter the two fan blades respectively.

[0013] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the two auxiliary air inlet channels are symmetrically arranged relative to the main air inlet channel, so that the air in the main air inlet channel can evenly enter the two fan blades respectively.

[0014] As an optional method, the vacuum cleaner provided in the embodiment of the present invention has a main unit inlet channel and a main unit air outlet, a dust collecting chamber is provided in the main unit of the vacuum cleaner, a dust collecting cylinder is provided in the dust collecting chamber, and the main unit inlet channel is connected to the main air inlet channel through the dust collecting cylinder;

[0015] The motor has an air outlet, and the air outlet is communicated with the air outlet of the host.

[0016] In the vacuum cleaner provided by the embodiment of the present invention, the host inlet channel is connected to the main 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.

[0017] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the axis of the main air inlet channel is colinear with the axis of the dust collecting chamber.

[0018] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the axis of the main air inlet channel is colinear with the axis of the dust collecting cylinder.

[0019] As an optional method, in the vacuum cleaner provided by the embodiment of the present invention, the axis of the dust collecting cylinder is perpendicular to the axis of the motor. In this way, it is convenient to evenly allow the air purified by the dust collecting cylinder to enter the motor through the auxiliary air inlet channel and the fan blades.

[0020] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the distance between the auxiliary air inlet channel and the main air inlet channel is greater than the distance between the side wall of the dust collecting cylinder and the main air inlet channel.

[0021] In the vacuum cleaner provided by the embodiment of the present invention, since the axis of the dust collection cylinder is perpendicular to the axis of the motor, the axis of the main air inlet channel is perpendicular to the axis of the motor, and the motor is provided with two fan blades, which increases the volume and the length of the main shaft of the motor relative to one fan blade, and adopts an arc-shaped auxiliary air inlet channel, and the distance between the axis of the auxiliary air inlet channel and the main air inlet channel increases successively, so that the air in the main air inlet channel is smoothly transferred to the fan blade. In this way, the air purified by the dust collection cylinder can be uniformly passed into the motor through the auxiliary air inlet channel and the fan blade.

[0022] 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 main air inlet channel.

[0023] 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 main 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.

[0024] As an optional method, the vacuum cleaner provided by the embodiment of the present invention has a vacuum cleaner main unit having a handheld part, the handheld part is opposite to the main unit inlet channel, the motor cavity is located above the handheld part, the air outlet is opposite to the main unit air outlet, and the main unit air outlet is located above the air outlet.

[0025] In the vacuum cleaner provided by the embodiment of the present invention, the main unit inlet channel can be called the front part of the vacuum cleaner, the handheld part is opposite to the main unit inlet channel, the handheld part is the rear part of the vacuum cleaner, and the handheld part is arranged at the rear part of the vacuum cleaner, so that the handheld part does not affect the main unit inlet channel to inhale air, so that the main unit inlet channel can smoothly inhale air, and the air inlet and air outlet of the vacuum cleaner do not affect each other. The air outlet is opposite to the main unit outlet, and the main unit outlet is located above the air outlet, so that the main unit outlet can smoothly discharge air.

[0026] As an optional method, 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 with each other to form a accommodating cavity for accommodating the motor, and the accommodating cavity has support parts on both opposite sides, and the support parts match the end of the motor with the fan blade.

[0027] The vacuum cleaner provided by the embodiment of the present invention is provided with a motor cover body, the motor cover body includes a first cover body and a second cover body, the first cover body and the second cover body are spliced ​​together to cover the motor in a receiving cavity formed by the splicing of the first cover body and the second cover body, and the motor is preliminarily positioned through the receiving cavity. Support parts are provided on both opposite sides of the receiving cavity, the support parts match the fan blade ends of the motor, and the two ends of the fan blades of the motor are supported by the support parts to reduce the vibration generated by the motor during operation.

[0028] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the auxiliary air inlet channel is connected to the supporting part.

[0029] Since the support portion is used to support the end of the motor with the fan blade, that is, the distance between the support portion and the fan blade is relatively close, connecting the auxiliary air inlet channel with the support portion can allow the air in the auxiliary air inlet channel to enter the motor through the fan blade as quickly as possible.

[0030] As an optional manner, in the vacuum cleaner provided in an embodiment of the present invention, the air outlet is located on the first cover body and / or the second cover body.

[0031] The air outlet of the host is opposite to the air outlet, and the air exhausted by the motor is discharged in time through the air outlet and the air outlet of the host. Therefore, the air outlet is arranged on the first cover body and / or the second cover body opposite to the air outlet of the host.

[0032] As an optional manner, in the vacuum cleaner provided by the embodiment of the present invention, the motor assembly further includes a buffer, and the buffer is located between the support portion and the end of the motor having the fan blade.

[0033] In the vacuum cleaner provided by the embodiment of the present invention, the rubber pad is arranged between the support part and the end of the motor with the fan blade. The rubber pad has a buffering effect on the vibration generated when the motor is working, thereby further reducing the vibration generated when the motor is working.

[0034] 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

[0035] 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.

[0036] Figure 1 A schematic diagram of the structure of a vacuum cleaner provided by an embodiment of the present invention;

[0037] Figure 2 A bottom view of a vacuum cleaner provided by an embodiment of the present invention;

[0038] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0039] Figure 4 A rear view of a vacuum cleaner provided by an embodiment of the present invention;

[0040] Figure 5 for Figure 4 Cross-sectional view of the middle BB;

[0041] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0042] Figure 7 A schematic diagram of the structure of a motor in a vacuum cleaner provided by an embodiment of the present invention;

[0043] Figure 8 A schematic diagram of the structure of a fan blade of a motor in a vacuum cleaner provided by an embodiment of the present invention;

[0044] Fig. 9 A top view of a fan blade of a motor in a vacuum cleaner provided in an embodiment of the present invention.

[0045] Description of reference numerals:

[0046] 10-vacuum cleaner main unit; 11-main unit inlet channel; 12-main unit air outlet; 20-motor chamber; 21-motor; 211-fan blade; 2111-shaft sleeve; 2112-blade; 23-main air inlet channel; 24-auxiliary air inlet channel; 214-air outlet; 22-motor cover; 221-first cover body; 222-second cover body; 223-accommodating chamber; 224-supporting part; 25-buffer; 30-dust collecting chamber; 31-dust collecting cylinder; 40-filter; 50-handheld part. DETAILED DESCRIPTION

[0047] 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.

[0048] 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.

[0049] 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.

[0050] In the description of the present invention, "plurality" means two or more than two, unless otherwise precisely and specifically specified.

[0051] 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.

[0052] 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.

[0053] 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; Figure 6 for Figure 5 A partial enlarged view of point C in the middle. Figures 1 to 6As shown, the present invention provides a vacuum cleaner, including 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 filter 40 is used to filter the gas entering the motor cavity 20, the motor assembly is located in the motor cavity 20, the motor assembly includes a motor cover 22 and a motor 21 located in the motor cover 22; the motor 21 has an output shaft and at least two fan blades 211, and the at least two fan blades 211 are respectively located at opposite ends of the output shaft; the motor cover 22 has two air inlets, and the air inlets are respectively connected to the fan blades 211 at both ends of the output shaft.

[0054] 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 main shaft of the motor 21, forming a motor 21 with at least two fan blades 211. In this way, the main shaft of the motor 21 rotates, and at the same time drives at least two fan blades 211 to rotate, thereby increasing the suction capacity of the motor 21, so that the vacuum cleaner can inhale more air, that is, improving the suction force of the vacuum cleaner. And each fan blade 211 has an independent air inlet, and the air intakes of the two fan blades 211 do not interfere with each other. There is no need to increase the motor speed, and there is no need to increase the size of the fan blades, so as to avoid the motor generating large vibrations during operation, increase the noise of the vacuum cleaner, and increase the cost of the vacuum cleaner.

[0055] See also Figure 6 As shown, the vacuum cleaner provided by the embodiment of the present invention has two fan blades 211, and the motor assembly further includes a main air inlet channel 23 and two auxiliary air inlet channels 24 connected to the main air inlet channel 23, and each auxiliary air inlet channel 24 is connected to the air inlet port.

[0056] Specifically, in order to prevent the two fan blades 211 from affecting each other when they rotate to absorb air, in the present embodiment, an air inlet channel is also provided in the motor assembly, and the air inlet channel includes a main air inlet channel 23 and two auxiliary air inlet channels 24 connected to the main air inlet channel 23. Air is taken in through the main air inlet channel 23, and one auxiliary air inlet channel 24 is connected to the air inlet corresponding to one fan blade 211, so that each fan blade 211 has a separate auxiliary air inlet channel 24 to prevent the two fan blades 211 from affecting each other when they rotate to absorb air.

[0057] Optionally, in the vacuum cleaner provided by the embodiment of the present invention, the air inlets corresponding to the two fan blades 211 are perpendicular to the air inlet corresponding to the main air inlet channel 23. In other words, the air inlet corresponding to each fan blade 211 is perpendicular to the air inlet corresponding to the main air inlet channel 23, so that the two fan blades 211 can evenly intake air.

[0058] See also Figure 3As shown, in the vacuum cleaner provided by the embodiment of the present invention, the vacuum cleaner host 10 has a host 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 inlet channel 11 is connected to the main air inlet channel 23 through the dust collecting cylinder 31;

[0059] The motor 21 has an air outlet 214 , and the air outlet 214 is communicated with the main unit air outlet 12 .

[0060] 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 inlet channel 11, and the dust collecting barrel 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 motor 21 through the main air inlet channel 23 of the motor 21, and then flows out of the vacuum cleaner through the air outlet 214 of the motor 21 and the main unit outlet 12.

[0061] In the vacuum cleaner provided by the embodiment of the present invention, the host inlet channel 11 is connected to the main 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.

[0062] 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 auxiliary air inlet channel 24 and the fan blade 211 into the motor 21 through the air purification of the dust collecting cylinder 31.

[0063] See also Figure 3 As shown, further, 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 main air inlet channel 23. The filter 40 is used to filter impurities such as dust in the air. The filter 40 is arranged between the dust collecting cylinder 31 and the main air inlet channel 23. The filter 40 can filter the air in the dust collecting cylinder 31 that is not fully purified, and prevent dust and other impurities from entering the motor 21, thereby damaging the motor 21.

[0064] See also Figure 1 and Figure 3 As shown, in the vacuum cleaner provided by the embodiment of the present invention, the vacuum cleaner host 10 has a hand-held part 50, the hand-held part 50 is opposite to the host inlet channel 11, the motor cavity 20 is located above the hand-held part 50, the air outlet 214 is opposite to the host air outlet 12, and the host air outlet 12 is located above the air outlet 214.

[0065] Specifically, the hand-held portion 50 facilitates holding the vacuum cleaner during 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 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 air outlet 214 of the motor 21 and the main unit outlet 12.

[0066] The main unit inlet channel 11 can be called the front part of the vacuum cleaner, the handheld part 50 is opposite to the main unit inlet channel 11, and 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 inlet channel 11 to inhale air, so that the main unit inlet channel 11 can smoothly inhale air, and the air inlet and outlet of the vacuum cleaner do not affect each other. The air outlet 214 is opposite to the main unit outlet 12, and the main unit outlet 12 is located above the air outlet 214, so that the main unit outlet 12 can smoothly discharge air.

[0067] See also Figure 6 As shown, in the vacuum cleaner provided by the embodiment of the present invention, the auxiliary air inlet channel 24 is arc-shaped, so that the air in the main air inlet channel 23 can smoothly enter the two fan blades 211 respectively.

[0068] Optionally, in the vacuum cleaner provided by the embodiment of the present invention, the two auxiliary air inlet channels 24 are symmetrically arranged relative to the main air inlet channel 23. In this way, the air in the main air inlet channel 23 can be evenly introduced into the two fan blades 211 respectively.

[0069] Optionally, in the vacuum cleaner provided by an embodiment of the present invention, the axis of the main air inlet channel 23 is collinear with the axis of the dust collecting tube 31, the axis of the main air inlet channel 23 is collinear with the axis of the dust collecting chamber 30, and the distance between the auxiliary air inlet channel 24 and the main air inlet channel 23 is greater than the distance between the side wall of the dust collecting tube 31 and the main air inlet channel 23.

[0070] Specifically, since the axis of the dust collection barrel 31 is perpendicular to the axis of the motor 21, the axis of the main air inlet channel 23 is perpendicular to the axis of the motor 21. Since the motor 21 is provided with two fan blades 211, the volume and the length of the main shaft of the motor 21 are increased compared with one fan blade 211. The arc-shaped auxiliary air inlet channel 24 is adopted, and the distance between the axis of the auxiliary air inlet channel 24 and the main air inlet channel 23 increases successively, so that the air in the main air inlet channel 23 is smoothly transferred to the fan blade 211. In this way, the air purified by the dust collection barrel 31 can be uniformly passed into the motor 21 through the auxiliary air inlet channel 24 and the fan blade 211.

[0071] Figure 7 This is a schematic diagram of the structure of a motor in a vacuum cleaner provided by an embodiment of the present invention. Figure 6 and Figure 7 As shown, in the vacuum cleaner provided by the embodiment of the present invention, the motor cover 22 includes a first cover body 221 and a second cover body 222. The first cover body 221 and the second cover body 222 are assembled with each other to form a accommodating chamber 223 for accommodating the motor 21. The accommodating chamber 223 has support parts 224 on both opposite sides, and the support parts 224 match the end of the motor 21 with the fan blade 211.

[0072] Specifically, in order to facilitate the placement of the motor 21 in the vacuum cleaner provided by the embodiment of the present invention, the motor cover 22 includes a first cover body 221 and a second cover body 222. The first cover body 221 and the second cover body 222 are spliced ​​together to cover the motor 21 in a receiving cavity 223 formed by the splicing of the first cover body 221 and the second cover body 222. The motor 21 is preliminarily positioned by the receiving cavity 223. In specific implementation, the receiving cavity 223 can match the contour of the motor 21, and the inner side wall of the receiving cavity 223 abuts against the outer side of the motor 21 to fix the motor 21. Support parts 224 are provided on both opposite sides of the receiving cavity 223. The support parts 224 match the blade ends of the motor 21. The two ends of the motor 21 installed with the blades are supported by the support parts 224 to reduce the vibration generated by the motor 21 during operation.

[0073] Specifically, the support portion 224 is used to support the end of the motor 21 with the fan blade 211. For example, the end of the motor 21 with the fan blade 211 is circular, and the support portion 224 can be a ring matching the circular contour. In specific implementation, the shape of the support portion 224 can be determined according to the shape of the end of the fan blade 211 of the motor 21, and this embodiment is not limited here.

[0074] The shapes and sizes of the first cover body 221 and the second cover body 222 can be the same or different, as long as the first cover body 221 and the second cover body 222 can form a receiving cavity 223 after being assembled together, and the receiving cavity 223 can receive the motor 21 .

[0075] In a specific implementation, the shapes of the first cover body 221 and the second cover body 222 match each other. That is, the first cover body 221 and the second cover body 222 have the same shape and size. After the first cover body 221 and the second cover body 222 are assembled, the outer side walls are flush and the inner side walls are also flush, so that the motor cover 22 has a better integrity and a more beautiful appearance. In actual processing and manufacturing, the process of processing the first cover body 221 and the second cover body 222 is the same, which saves costs. At the same time, the first cover body 221 and the second cover body 222 can also be replaced with each other.

[0076] Further, in the vacuum cleaner provided by the embodiment of the present invention, the first cover body 221 and the second cover body 222 are detachably connected via a connecting piece. In this way, it is convenient to disassemble the first cover body 221 and the second cover body 222, and to repair and maintain the motor 21.

[0077] In a specific implementation, the connecting member may be a screw, a bolt or a buckle, which is not limited in this embodiment.

[0078] Optionally, the outer side walls of the first cover body 221 and the second cover body 222 may be connected by a clamp to further increase the stability of the connection between the first cover body 221 and the second cover body 222 .

[0079] Optionally, in the vacuum cleaner provided by the embodiment of the present invention, the auxiliary air inlet channel 24 is connected to the support portion 224. Since the support portion 224 is used to support the end of the motor 21 having the fan blade 211, that is, the distance between the support portion 224 and the fan blade 211 is relatively close, connecting the auxiliary air inlet channel 24 to the support portion 224 can allow the air in the auxiliary air inlet channel 24 to enter the motor 21 through the fan blade 211 as quickly as possible.

[0080] Optionally, in the vacuum cleaner provided in the embodiment of the present invention, the air outlet 214 is located on the first cover 221 and / or the second cover 222. In a specific implementation, the main unit air outlet 12 and the air outlet 214 are opposite to each other, and the air exhausted by the motor 21 is discharged in time through the air outlet 214 and the main unit air outlet 12. Therefore, the air outlet 214 is set on the first cover 221 and / or the second cover 222 opposite to the main unit air outlet 12. The specific position of the air outlet 214 is determined according to the position of the main unit air outlet 12, and this embodiment is not limited here.

[0081] The main unit air outlet 12 and the air outlet 214 may be in a grid shape. The grid shape is a regular shape. By setting the main unit air outlet 12 and the air outlet 214 in a grid shape, the vacuum cleaner and the motor 21 can discharge air evenly and achieve a good air discharge effect.

[0082] In a specific implementation, the air outlet 214 is a rectangular grid, and the air outlet 214 may also be a circular grid, which is not limited in this embodiment.

[0083] Optionally, in the vacuum cleaner provided by the embodiment of the present invention, the motor assembly further includes a buffer 25 , and the buffer 25 is located between the support portion 224 and the end of the motor 21 having the fan blade 211 .

[0084] In a specific implementation, the buffer 25 can be a rubber pad, which is arranged between the support portion 224 and the end of the motor 21 with the fan blade 211. The rubber pad has a buffering effect on the vibration generated when the motor 21 is working, further reducing the vibration generated when the motor 21 is working.

[0085] Figure 8 A schematic diagram of the structure of a fan blade of a motor in a vacuum cleaner provided by an embodiment of the present invention; Fig. 9 A top view of a fan blade of a motor in a vacuum cleaner provided by an embodiment of the present invention. Figure 8 and Fig. 9 As shown, in the vacuum cleaner provided by the embodiment of the present invention, the fan blade 211 may be a guide fan blade, and the fan blade 211 includes a shaft sleeve 2111 and a plurality of blades 2112, the shaft sleeve 2111 is conical, the side of each blade 2112 is connected to the shaft sleeve 2111, the blade 2112 is bent, and the first end of each blade 2112 is inclined in the same direction, and the first end of the blade 2112 faces the end of the output shaft of the motor 21;

[0086] The width of each blade 2112 gradually decreases from the first end of the blade 2112 to the second end of the blade 2112 .

[0087] In a specific implementation, a plurality of blades 2112 are evenly spaced, the first side of each blade 2112 is curved and connected to the shaft sleeve 2111, and the first end of each blade 2112 is inclined in the same direction. The first end of each inclined blade 2112 provides a guide for the gas entering the motor 21, and the gas can smoothly enter the motor 21 through the guiding effect of the blades 2112.

[0088] The width of each blade 2112 gradually decreases from the first end of the blade 2112 to the second end of the blade 2112, that is, the distance between the first side of each blade 2112 and the second side of each blade 2112 gradually decreases, wherein the distance between the first side and the second side of the end of each blade 2112 away from the output shaft of the motor 21 is the smallest. In this way, the volume of the motor cover 22 occupied by the blade 2112 can be saved, thereby increasing space for gas entering the motor 21.

[0089] 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: 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 and at least two fan blades (211), and the at least two fan blades (211) are respectively located at two opposite ends of the output shaft; The motor cover (22) has two air inlets, and the air inlets are respectively connected to the fan blades (211) at both ends of the output shaft; The number of the fan blades (211) is two, and the motor assembly further comprises a main air inlet channel (23) and two auxiliary air inlet channels (24) connected to the main air inlet channel (23), and each of the auxiliary air inlet channels (24) is connected to the air inlet port; The vacuum cleaner main unit (10) comprises a main unit inlet channel (11) and a main unit air outlet (12), wherein the main unit inlet channel (11) is in communication with the main air inlet channel (23), and the motor (21) comprises an air outlet (214), wherein the air outlet (214) is in communication with the main unit air outlet (12).

2. The vacuum cleaner according to claim 1, characterized in that: Each of the air inlets is perpendicular to the main air inlet channel (23).

3. The vacuum cleaner according to claim 1 or 2, characterized in that: Each of the auxiliary air inlet channels (24) is arc-shaped.

4. The vacuum cleaner according to claim 1, characterized in that: The two auxiliary air inlet channels (24) are symmetrically arranged relative to the main air inlet channel (23).

5. The vacuum cleaner according to claim 2, characterized in that: The vacuum cleaner main unit (10) has a dust collecting chamber (30) therein, the dust collecting chamber (30) has a dust collecting cylinder (31) therein, and the main unit air inlet channel (11) is connected to the main air inlet channel (23) via the dust collecting cylinder (31).

6. The vacuum cleaner according to claim 5, characterized in that: The axis of the main air inlet channel (23) is colinear with the axis of the dust collecting chamber (30).

7. The vacuum cleaner according to claim 5, characterized in that: The axis of the main air inlet channel (23) is colinear with the axis of the dust collecting cylinder (31).

8. The vacuum cleaner according to claim 5, characterized in that: The axis of the dust collecting cylinder (31) is perpendicular to the axis of the motor (21).

9. The vacuum cleaner according to claim 5, characterized in that: The distance between the auxiliary air inlet channel (24) and the main air inlet channel (23) is greater than the distance between the side wall of the dust collecting cylinder (31) and the main air inlet channel (23).

10. The vacuum cleaner according to claim 5 or 6, characterized in that: The filter (40) is located between the dust collecting cylinder (31) and the main air inlet channel (23).

11. The vacuum cleaner according to claim 5, characterized in that: The vacuum cleaner main unit (10) comprises a handheld portion (50), the handheld portion (50) being opposite to the main unit inlet passage (11), the motor chamber (20) being located above the handheld portion (50), the air outlet (214) being opposite to the main unit air outlet (12), and the main unit air outlet (12) being located above the air outlet (214).

12. The vacuum cleaner according to claim 5, characterized in that: The motor cover (22) comprises a first cover body (221) and a second cover body (222); the first cover body (221) and the second cover body (222) are assembled together to form a receiving chamber (223) for receiving the motor (21); opposite sides of the receiving chamber (223) are provided with support portions (224); the support portions (224) match the ends of the motor (21) having the fan blades (211).

13. The vacuum cleaner according to claim 12, characterized in that: The auxiliary air inlet channel (24) is in communication with the support portion (224).

14. The vacuum cleaner according to claim 12, characterized in that: The air outlet (214) is located on the first cover body (221) and / or the second cover body (222).

15. The vacuum cleaner according to any one of claims 12 to 14, characterized in that: The motor assembly further comprises a buffer member (25), wherein the buffer member (25) is located between the support portion (224) and an end portion of the motor (21) having a fan blade (211).

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