A dust separation device and a vacuum cleaner

Abstract

The present invention provides a dust separation device and a vacuum cleaner, comprising: a main body, inside which a vacuum motor with a wind wheel is arranged; a dust collection chamber, arranged on the main body, and an air inlet is arranged on the dust collection chamber; a rotating motor, arranged inside the main body, an output shaft is arranged on the rotating motor, and a filter screen is arranged on the output shaft; the filter screen further comprises a dust blocking part, the inner diameter of the dust blocking part gradually increases in the direction away from the rotating motor, and the edge of the filter screen in the direction away from the rotating motor is arranged adjacent to the inner wall of the dust collection chamber. Such a setting reduces the impact force of large particle dirt on the filter screen, ensures the filtering performance of the filter screen, and at the same time, the filter screen is adjacent to the inner wall of the dust collection chamber, avoiding filtering leakage and effectively achieving complete filtering of the air flow.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, and particularly to a dust separation device and a vacuum cleaner. Background Art

[0002] Nowadays, with the continuous and rapid economic development and the continuous growth of consumers' income, especially the rapid growth of the income level of residents in large and medium-sized cities, the living conditions of residents have been continuously improved, and there are more and more large-area housing. The demand of residents for vacuum cleaners is also getting stronger.

[0003] As a common electrical device, a vacuum cleaner creates a negative pressure environment through a built-in motor, sucks the air mixed with dust and dirt from the outside into the vacuum cleaner, and after filtration and separation, the dust and dirt are retained in the vacuum cleaner, and the clean air is discharged to the outside. Usually, the dirt separator of a vacuum cleaner includes a porous bag separator or a cyclone separator.

[0004] However, after the porous bag separator is used for a period of time, the small holes on the dust collection bag will be quickly blocked by dirt, resulting in a decrease in the suction of the vacuum cleaner. After the dust collection bag is filled, the old bag needs to be thrown away and a new bag needs to be replaced, causing waste of resources and environmental pollution, increasing the user's usage cost, and having a low dirt separation efficiency. For the cyclone separator, the airflow carrying dust and dirt will form a cyclone inside the vacuum cleaner. Since the dust and dirt particles themselves have relatively large masses, they will collide with the container wall by the action of centrifugal force and fall into the dust collection box, so as to achieve the purpose of separating dirt and air. However, the cyclone separator itself consumes a relatively large vacuum pressure, requires a relatively large power of the vacuum motor, and has a relatively strong noise during operation, affecting the user experience.

[0005] In the prior art, a dust separation device is provided, which includes a disk with small holes at the air outlet of the dust collection chamber and a motor for driving the disk to rotate. The disk is arranged to rotate around the rotation axis and includes holes for the cleaned airflow to pass through. The airflow carrying dirt enters the chamber and contacts the rotating disk. The disk applies a tangential force to the airflow, so the dirt carried in the airflow will move radially along the surface of the disk towards the edge of the disk. During this process, the airflow will flow out from the small holes in the disk, while the dirt therein will continue to move towards the outer diameter edge due to its greater inertia and accumulate at the bottom of the chamber. Compared with the cyclone separator, this separator consumes less vacuum pressure and can be paired with a vacuum motor with smaller power and noise.

[0006] However, during the working process of this separator, all the dirt will impact the disk following the airflow, and the larger particles in the dirt will cause scratches on the disk, affecting the normal operation of the disk. Summary of the Invention

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the defect that large particle dirt impacts and damages the turntable during the operation of the dust separator in the prior art, so as to provide a dust separation device and a vacuum cleaner.

[0008] The present invention also provides a dust separation device, including: a main body, inside which a vacuum motor with a wind wheel is arranged;

[0009] a dust collection chamber, arranged on the main body, and an air inlet is arranged on the dust collection chamber;

[0010] a rotation motor, arranged inside the main body, an output shaft is arranged on the rotation motor, and a filter screen is arranged on the output shaft;

[0011] The filter screen further includes a dust blocking part, the inner diameter of the dust blocking part gradually increases in the direction away from the rotation motor, and the edge of the filter screen in the direction away from the rotation motor is arranged adjacent to the inner wall of the dust collection chamber.

[0012] The air inlet is arranged on the side wall of the dust collection chamber.

[0013] The filter screen includes: a filtering part, connected to the output shaft and arranged vertically, and a plurality of opening areas are arranged thereon;

[0014] The dust blocking part, one end of which is connected to the filtering part;

[0015] an annular shielding part, connected and arranged with the other end of the dust blocking part, and parallel to the filtering part, and the outer edge of the annular shielding part is arranged adjacent to and spaced from the inner wall of the dust collection chamber.

[0016] A gap blocking part is further arranged on the inner wall of the main body or the annular shielding part, the gap blocking part is arranged below the annular shielding part and is arranged adjacent to the annular shielding part.

[0017] A groove is arranged on the inner wall of the main body, and the gap blocking part is arranged in the groove.

[0018] The gap blocking part is a dust-proof brush.

[0019] A connecting sleeve is arranged on the side of the filter screen facing the rotation motor, and the connecting sleeve is suitable for connecting the output shaft.

[0020] A motor bracket is arranged on the inner wall of the main body, and the motor bracket is suitable for fixing the rotation motor.

[0021] The motor bracket includes a fixing part and a plurality of support columns, the fixing part is arranged in a cylindrical shape and is in interference connection with the rotation motor, and the support columns are uniformly arranged along the circumference of the fixing part and connect the fixing part and the inner wall of the main body.

[0022] An exhaust hole is also provided on the inner wall of the main body, and the exhaust hole is arranged adjacent to the vacuum motor.

[0023] An air outlet grille is also provided on the exhaust hole.

[0024] A vacuum motor mounting portion is also provided on the main body, which is suitable for fixing the vacuum motor.

[0025] The dust and dirt separation device further includes a motor filter screen, which is arranged adjacent to the wind wheel and is arranged at the front end position of the wind wheel along the air inlet direction.

[0026] An opening is provided on the dust collection chamber, and the main body is connected to the dust collection chamber through the opening.

[0027] The filter screen is arranged in a cup shape.

[0028] The present invention also provides a vacuum cleaner, including the above-mentioned dust and dirt separation device;

[0029] A suction pipe, one end of which is connected to the air inlet position of the dust and dirt separation device;

[0030] A vacuum cleaner head, which is connected to the other end of the suction pipe.

[0031] The technical solution of the present invention has the following advantages:

[0032] 1. The present invention provides a dust and dirt separation device, including: a main body, inside which a vacuum motor with a wind wheel is arranged; a dust collection chamber, which is arranged on the main body, and an air inlet is provided on the dust collection chamber; a rotating motor, which is arranged inside the main body, an output shaft is provided on the rotating motor, and a filter screen is provided on the output shaft; the filter screen further includes a dust blocking portion, the inner diameter of the dust blocking portion gradually increases along the direction away from the rotating motor, and the edge of the filter screen in the direction away from the rotating motor is closely adjacent to the inner wall of the main body.

[0033] By providing a dust blocking portion with a gradually changing inner diameter on the filter screen and the edge being closely adjacent to the inner wall of the main body, when the airflow with dust and dirt enters the dust collection chamber, under the action of the vacuum motor with a wind wheel, the airflow will move towards the filter screen direction and collide with the inner wall of the dust blocking portion. Since the filter screen is fixedly connected to the output shaft of the rotating motor, under the drive of the rotating motor, the dust blocking portion on the filter screen will rotate. The airflow impacting the dust blocking portion and the dust and dirt therein will change direction under the frictional action, move along with the dust blocking portion, and the large-particle dust and dirt will be centrifuged during the movement, move towards the inner wall direction of the dust collection chamber, continue to collide with the dust blocking portion, lose kinetic energy, and remain in the dust collection chamber. In this way, by setting the dust blocking portion, the impact force of large-particle dirt on other parts of the filter screen is reduced, the filtering performance of the filter screen is ensured, and at the same time, the filter screen is closely adjacent to the inner wall of the main body, avoiding leakage filtration, and effectively realizing the complete filtration of the airflow.

[0034] 2. The dust separation device provided by the present invention, wherein the air inlet is arranged on the side wall of the dust collection chamber.

[0035] With such an arrangement, after the air flow enters the dust collection chamber, under the negative pressure of the vacuum motor, a circulating flow towards the filter net will be formed, and the center of the circulating flow is the axis where the output shaft is located. In this way, large particle dirt moves towards the inner wall of the dust collection chamber under the action of centrifugal force and is blocked by the dust blocking part or the inner wall of the dust collection chamber, staying in the dust collection chamber, reducing the impact of large particle dirt on the filter net, and ensuring the filtering performance of the filter net.

[0036] 3. The dust separation device provided by the present invention, wherein the gap blocking part is a dust-proof brush.

[0037] By providing the dust-proof brush, on the one hand, it can block large particle dust and dirt moving to the edge position under the action of centrifugal force, reducing the impact force on the annular shielding part. On the other hand, as a supplementary seal, it shields the gap between the annular shielding part and the inner wall of the dust collection chamber, preventing dust and dirt from entering the main body through the gap, and playing a role of supplementary sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0039] Figure 1 It is an exploded view of the structure of the dust separation device provided in the embodiment of the present invention;

[0040] Figure 2 is Figure 1 an exploded sectional view of the structure of the dust separation device shown;

[0041] Figure 3 is Figure 1 a sectional view of the structure of the dust separation device shown;

[0042] Figure 4 is Figure 3 a three-dimensional sectional view of the structure of the dust separation device shown;

[0043] Explanation of the reference numerals:

[0044] 1 - Main body; 2 - Vacuum motor; 3 - Dust collection chamber; 31 - Air inlet; 4 - Rotating motor; 41 - Output shaft; 5 - Filter net; 51 - Filter part; 52 - Dust blocking part; 53 - Annular shielding part; 54 - Connecting sleeve; 6 - Dustproof brush; 7 - Motor bracket; 71 - Fixed part; 72 - Support column; 11 - Exhaust hole. Detailed implementation mode

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0048] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0049] Such as Figure 1 - Figure 4 , this embodiment provides a dust and dirt separation device, including structures such as a main body 1, a dust collection chamber 3, a rotating motor 4, and a filter net 5.

[0050] The main body 1 is provided in a cylindrical shape, including a first main body and a second main body with different inner diameters. The first main body and the second main body are integrally formed. An opening is provided on the second main body. A vacuum motor 2 with a wind wheel is arranged inside the first main body, and negative pressure can be generated when the vacuum motor 2 rotates. The dust collection chamber 3 is connected to the main body 1 in a cylindrical shape. An air inlet 31 is provided on the dust collection chamber 3. A rotating motor 4 is arranged inside the second main body. An output shaft 41 is provided on the rotating motor 4, and a filter net 5 is provided on the output shaft 41. The filter net 5 is provided in a cup shape and includes a dust blocking part 52. The inner diameter of the dust blocking part 52 gradually increases in the direction away from the rotating motor 4. The edge of the filter net 5 in the direction away from the rotating motor 4 is closely adjacent to the inner wall of the main body 1. In this embodiment, the output shaft 41 is coaxially arranged with the rotating shaft of the vacuum motor 2.

[0051] By providing the dust blocking part 52 with a gradually changing inner diameter on the filter net 5 and the edge being closely adjacent to the inner wall of the main body 1, when the airflow with dust enters the dust collection chamber 3, under the action of the vacuum motor 2 with a wind wheel, the airflow will move towards the filter net 5 and collide with the inner wall of the dust blocking part 52. Since the filter net 5 is fixedly connected to the output shaft 41 of the rotating motor 4, under the drive of the rotating motor 4, the dust blocking part 52 on the filter net 5 will rotate. The airflow hitting the dust blocking part 52 and the dust in it will change direction under the frictional action, move along with the dust blocking part 52, and the large-particle dust will undergo centrifugation during the movement, move towards the inner wall direction of the dust collection chamber 3, continue to collide with the dust blocking part 52, lose kinetic energy, and stay in the dust collection chamber 3. In this way, by setting the dust blocking part 52, the impact force of large-particle dirt on the complete filtering part 51 of the filter net 5 is reduced, the filtering performance of the filter net 5 is ensured. At the same time, the filter net 5 is closely adjacent to the inner wall of the main body 1 to avoid leakage of filtration, effectively realizing the complete filtration of the airflow.

[0052] The air inlet 31 is provided on the side wall of the dust collection chamber 3. In this embodiment, the air inlet 31 is arranged tangentially along the inner wall of the dust collection chamber 3. As an alternative embodiment, the extending direction of the air inlet 31 can also pass through the axis where the output shaft 41 is located.

[0053] With such a setting, after the airflow flows into the dust collection chamber 3, under the negative pressure action of the vacuum motor 2, a circulating flow towards the filter net 5 will be formed, and the center of the circulating flow is the axis where the output shaft 41 is located. In this way, the large-particle dirt moves towards the inner wall direction of the dust collection chamber 3 under the centrifugal action and is blocked by the dust blocking part 52 or the inner wall of the dust collection chamber 3 and stays in the dust collection chamber 3, reducing the impact of the large-particle dirt on the filter net 5 and ensuring the filtering performance of the filter net 5.

[0054] The filter net 5 includes a filtering part 51, a dust blocking part 52, and an annular shielding part 53.

[0055] The filtering part 51 is arranged in a circular sheet shape, connected to the output shaft 41 and perpendicularly connected thereto, and is provided with a plurality of opening areas for filtering dust and allowing air flow to pass through; one end of the dust blocking part 52 with a smaller inner diameter is connected to the filtering part 51, and the other end is connected to the annular shielding part 53; the annular shielding part 53 is arranged in a circular ring sheet shape, parallel to the filtering part 51, its inner edge is connected to the other end of the dust blocking part 52, and the outer edge of the annular shielding part 53 is adjacent to and spaced from the inner wall of the dust collecting cavity 3. The setting of the annular shielding part 53 can further block large particle dust moving to the inner wall of the dust collecting cavity 3 under the action of centrifugal force, effectively preventing the dust from hitting the filtering part 51 with the opening area, and ensuring the stable filtering performance of the filter net 5.

[0056] In this embodiment, a groove is provided on the inner wall of the main body 1, and the gap blocking part is arranged in the groove. In this embodiment, the gap shielding part is an annular dust-proof brush 6, and it can also be other shielding structures such as a dust-proof curtain. The dust-proof brush 6 is arranged on the lower side of the annular shielding part 53 and is closely adjacent to the annular shielding part 53. By setting the dust-proof brush 6, on the one hand, it can block large particle dust moving to the edge position under the action of centrifugal force and reduce the impact force on the annular shielding part 53. On the other hand, as a supplementary seal, it shields the gap between the annular shielding part 53 and the inner wall of the dust collecting cavity 3, preventing dust from entering the main body 1 through the gap and playing a role of supplementary sealing. As a changeable implementation manner, the gap blocking part can also be arranged in the dust collecting cavity.

[0057] As a changeable implementation manner, the dust-proof brush 6 can also not be provided, and instead, a sealing groove for accommodating and allowing the annular shielding part 53 to rotate is provided on the inner wall of the main body 1 or the inner wall of the dust collecting cavity 3.

[0058] In this embodiment, the specific structure of the filtering part 51 is not overly limited, and it can be provided with through holes within the overall diameter range. As a preferred implementation manner, the filtering part 51 includes an opening area and a non-opening area, and the opening area is arranged inside the non-opening area. Specifically, the non-opening area itself is in a ring structure. A plurality of through holes are provided in the opening area, and along the direction away from the center of the filter net 5, the included angle between the longitudinal axis of the through hole and the longitudinal axis of the filter net 5 gradually increases. By setting the axis of the through hole in this way, the through hole itself can deviate from the moving direction of the dust by a certain angle, avoiding the dust directly entering the through hole and causing blockage of the through hole.

[0059] A connecting sleeve 54 is arranged on the side of the filter net 5 facing the rotating motor 4, and the connecting sleeve 54 is adapted to connect to the output shaft 41.

[0060] Specifically, the connecting sleeve 54 is arranged at the axial position of the filter net 5 and extends towards the direction of the rotating motor 4. There is no excessive limitation on the connection method between the connecting sleeve 54 and the output shaft 41. It can adopt interference connection, threaded connection, or connect by respectively drilling holes in the connecting sleeve 54 and the output shaft 41 and then placing pins in the holes.

[0061] A motor bracket 7 is arranged on the inner wall of the main body 1, and the motor bracket 7 is suitable for fixing the rotating motor 4. The specific form of the motor bracket 7 is not limited, as long as it can provide ventilation and fix the rotating motor 4. As a preferred embodiment, the motor bracket 7 includes a fixing part 71 and several support columns 72. The fixing part 71 is arranged in a cylindrical shape and is in interference connection with the rotating motor 4. The support columns 72 are uniformly arranged along the circumferential direction of the fixing part 71 and connect the fixing part 71 and the inner wall of the main body 1. This setting can ensure the stable support of the rotating motor 4 while reducing the blocking effect on the air flow and ensuring the stable flow of the air flow.

[0062] In this embodiment, several long circular hole-shaped exhaust holes 11 are also arranged on the inner wall of the first main body, and the exhaust holes 11 are arranged adjacent to the vacuum motor 2. The clean gas after the external air flow is filtered to remove dust or impurities can be discharged from the exhaust holes 11. As an alternative embodiment, the exhaust holes 11 can also be arranged at other positions of the main body 1, such as on the bottom wall of the second main body or the first main body.

[0063] In this embodiment, an air outlet grille is also arranged on the exhaust holes 11, which can be opened or closed. The air outlet grille can be closed when the dust and dirt separation device is not in use to prevent external dust or mosquitoes from entering. As an alternative embodiment, the air outlet grille can also not be arranged.

[0064] A vacuum motor 2 mounting part is also arranged on the main body 1, which is suitable for fixing the vacuum motor 2. In this embodiment, the vacuum motor 2 mounting part is a groove arranged on the inner wall of the first main body. The groove is arranged on the extension line of the output shaft 41. One end of the vacuum motor 2 is fixed on the groove by interference connection. By arranging the groove, the stability of the vacuum motor 2 itself can be realized, and the vacuum motor 2 can be prevented from shaking. As an alternative embodiment, the vacuum motor 2 mounting part can also be a vacuum motor 2 support structure arranged in the first main body.

[0065] The dust and dirt separation device further includes a motor filter net 5, which is arranged adjacent to the wind wheel and at the front end position of the wind wheel along the air inlet direction.

[0066] In this embodiment, the dust collection chamber 3 is a cylindrical shape with a diameter larger than that of the main body 1. It is detachably sleeved on the main body 1, which is convenient for cleaning the dust collection inside the dust collection chamber 3 and for inspecting the filter net 5. It can also be fixed by different connection methods such as snap fasteners or threads. In this embodiment, it is a snap connection. The dust collection chamber 3 is provided with an open mouth, and the main body 1 is connected to the dust collection chamber 3 through the open mouth. The dust collection chamber 3 is provided with an air inlet 31. In this embodiment, the dust collection chamber 3 is composed of a dust cup cover provided with the air inlet 31 and a dust collection chamber body provided with the open mouth.

[0067] This embodiment also provides a vacuum cleaner, including: the above-mentioned dust and dirt separation device, a suction pipe, and a vacuum cleaner head. One end of the suction pipe is connected to the position of the air inlet 31 of the dust and dirt separation device, and the vacuum cleaner head is connected to the other end of the suction pipe.

[0068] After the dust and dirt separation device is started, the vacuum motor 2 operates to generate negative pressure. The negative pressure will suck the dust and dirt into the dust and dirt separation device through the vacuum cleaner head and the suction pipe, thereby realizing the collection of the dust and dirt itself.

[0069] In this embodiment, a handle can be directly provided on the dust and dirt separation device to form a handheld vacuum cleaner. When a dust suction operation is required, the user can directly hold the handle to perform the dust suction operation. As a variant, the dust and dirt separation device can be arranged in a dust suction bucket. At this time, the user holds the suction pipe, and the dust and dirt generated during the cleaning process will enter the dust suction bucket for collection. At the same time, rollers are provided in the dust suction bucket to move along with the user.

[0070] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A dust and dirt separation device, characterized in that, Comprising: A main body (1) with a vacuum motor (2) equipped with a wind wheel inside; A dust collection chamber (3) provided on the main body (1), and an air inlet (31) is provided on the dust collection chamber (3); A rotating motor (4) provided inside the main body (1), an output shaft (41) is provided on the rotating motor (4), and a filter net (5) is provided on the output shaft (41); The filter net (5) further comprises: A filtering part (51) connected to the output shaft (41) and vertically arranged, and a number of opening areas are provided thereon; A dust blocking part (52), one end of which is connected to the filtering part (51), the inner diameter of the dust blocking part (52) gradually increases along the direction away from the rotating motor (4), and the edge of the filter net (5) in the direction away from the rotating motor (4) is arranged adjacent to the inner wall of the main body (1); An annular shielding part (53) connected to the other end of the dust blocking part (52) and parallel to the filtering part (51), and the outer edge of the annular shielding part (53) is arranged adjacent to and spaced from the inner wall of the dust collection chamber (3).

2. The dust separation device according to claim 1, characterized in that, The air inlet (31) is provided on the side wall of the dust collection chamber (3).

3. The dust separation device according to claim 1, characterized in that, A gap blocking part is further provided on the inner wall of the main body (1) or the annular shielding part (53), the gap blocking part is provided below the annular shielding part (53) and is arranged adjacent to the annular shielding part (53).

4. The dust separation device according to claim 3, characterized in that, A groove is provided on the inner wall of the main body (1), and the gap blocking part is provided in the groove.

5. The dust separation device according to claim 3 or 4, characterized in that, The gap blocking part is a dust-proof brush (6).

6. The dust separation device according to any one of claims 1-4, characterized in that, A connecting sleeve (54) is provided on the side of the filter net (5) facing the rotating motor (4), and the connecting sleeve (54) is adapted to connect the output shaft (41).

7. The dust separation device according to claim 6, characterized in that, A motor support (7) is provided on the inner wall of the main body (1), and the motor support (7) is adapted to fix the rotating motor (4).

8. The dust separation device according to claim 7, characterized in that, The motor support (7) comprises a fixing part (71) and a number of support columns (72), the fixing part (71) is arranged in a cylindrical shape and is in interference connection with the rotating motor (4), and the support columns (72) are uniformly arranged along the circumferential direction of the fixing part (71) and connect the fixing part (71) and the inner wall of the main body (1).

9. The dust separation device according to claim 6, characterized in that, An exhaust hole (11) is further provided on the inner wall of the main body (1), and the exhaust hole (11) is arranged adjacent to the vacuum motor (2).

10. The dust and dirt separation device according to claim 9, wherein, An air outlet grille is further provided on the exhaust hole (11).

11. The dust separation device according to claim 6, characterized in that, A vacuum motor (2) installation part is further provided on the main body (1), and is adapted to fix the vacuum motor (2).

12. The dust separation device according to claim 6, characterized in that, It further comprises a motor filter net (5), which is arranged adjacent to the wind wheel and is arranged at the front end position of the wind wheel along the air inlet direction.

13. The dust separation device according to claim 1, characterized in that, An opening is provided on the dust collection chamber (3), and the main body (1) is connected to the dust collection chamber (3) through the opening.

14. The dust and dirt separation device according to claim 1, wherein The filter net (5) is arranged in a cup shape.

15. A vacuum cleaner, characterized in that, Comprising The dust separation device according to any one of claims 1-14; A suction pipe, one end of which is connected to the position of the air inlet (31) of the dust separation device; A vacuum cleaner head, connected to the other end of the suction pipe.

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