Vacuum cleaner with airflow dust separation

Abstract

The present invention discloses a vacuum cleaner with airflow dust separation. It comprises a motor housing and a dust collecting chamber, a separation chamber is provided in the dust collecting chamber, a separation air inlet pipe is provided at the lower end of the separation chamber, a separation air outlet is provided at the upper end of the separation chamber, a separation flange is provided on the left side of the separation chamber, the separation flange on the separation chamber and the inner side wall of the dust collecting chamber form a separation chamber, a separation core is provided in the separation chamber, a sealing flange is provided on the right side of the separation chamber, a sealing cover plate is provided on the sealing flange, the sealing flange of the separation chamber and the sealing cover plate form a sealed chamber, the separation air inlet pipe is connected with the separation chamber, the separation chamber is connected with the sealing chamber through the separation core, the sealed chamber is connected with the separation air outlet, a dust collection air inlet pipe is provided at the lower end of the dust collecting chamber, the dust collection air inlet pipe is connected with the separation air inlet pipe, and the upper end of the dust collecting chamber is connected with the motor housing. The beneficial effects of the present invention are: the separation of airflow and dust is more thorough, the cleaning of the entire vacuum cleaner is convenient, the vibration of the vacuum cleaner is reduced, and the noise of the vacuum cleaner is reduced.

Description

Technical Field

[0001] The invention relates to the technical field related to household appliances, and in particular to a vacuum cleaner with airflow and dust separation. Background Art

[0002] Vacuum cleaners can be divided into vertical, horizontal and portable types according to their structure. The working principle of a vacuum cleaner is to use an electric motor to drive the blades to rotate at high speed, generate negative air pressure in the sealed shell, and absorb dust. A vacuum cleaner mainly consists of three parts: dust collection, dust collection, and dust filtration. It generally includes a series commutator motor, a centrifugal fan, a dust filter (bag), and dust collection accessories. The power of a general vacuum cleaner is 400-1000W or higher, and the power of a portable vacuum cleaner is generally 250W or less. The vacuum cleaner can remove dust mainly because its "head" is equipped with an electric exhaust fan. There is a wind impeller on the rotating shaft of the exhaust fan. After power is turned on, the exhaust fan will generate high suction and pressure at a speed of 500 revolutions per second. Under the action of suction and pressure, the air is discharged at a high speed, and the air in the dust collection part at the front end of the fan continuously replenishes the air in the fan, causing an instantaneous vacuum inside the vacuum cleaner, forming a negative pressure difference with the external atmospheric pressure. Under the action of this pressure difference, the dust-containing air is inhaled. Dust and other debris enter the dust filter bag through the carpet or floor brush, long pipe, elbow, hose, and hose connector in turn. Dust and other debris are retained in the dust filter bag. The air is purified by the filter and then discharged from the tail of the machine body.

[0003] When using existing vacuum cleaners, the airflow and dust are often not separated completely, which makes the vacuum cleaner difficult to clean. At the same time, because the airflow and dust are mixed together, there are problems of large vibration and high noise during the vacuuming process. Summary of the invention

[0004] The present invention aims to overcome the above-mentioned deficiencies in the prior art and provides a vacuum cleaner with airflow dust separation and low vibration and noise.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A vacuum cleaner with airflow dust separation comprises a motor housing and a dust collecting chamber, wherein a separation chamber is provided in the dust collecting chamber, a separation air inlet pipe is provided at the lower end of the separation chamber, a separation air outlet is provided at the upper end of the separation chamber, a separation flange is provided on the left side of the separation chamber, the separation flange on the separation chamber and the inner side wall of the dust collecting chamber constitute a separation chamber, a separation core is provided in the separation chamber, a sealing flange is provided on the right side of the separation chamber, a sealing cover plate is provided on the sealing flange, the sealing flange of the separation chamber and the sealing cover plate constitute a sealed chamber, the separation air inlet pipe is communicated with the separation chamber, the separation chamber is communicated with the sealing chamber through the separation core, the sealed chamber is communicated with the separation air outlet, a dust inlet pipe is provided at the lower end of the dust collecting chamber, the dust inlet pipe is connected to the separation air inlet pipe, and the upper end of the dust collecting chamber is connected to the motor housing.

[0007] When the vacuum cleaner is working, the dust is sucked into the separation air inlet pipe through the dust collecting air inlet pipe, and the dust first enters the separation chamber, and the airflow and dust are separated by the separation chamber; then the airflow enters the sealed chamber, and the dust flows back to the dust collecting chamber; after passing through the sealed chamber, the airflow enters the motor housing through the separation air outlet and is discharged. This design can separate the dust first so that the dust will not affect the motor housing, thereby reducing the vibration of the entire vacuum cleaner; and due to the early separation of dust, the dust will not hit the separation chamber and the motor housing, which effectively reduces the noise.

[0008] Preferably, the separation chamber is provided with a ventilation hole, the separation chamber and the sealing chamber are connected through the ventilation hole, an annular rotating air duct is provided in the separation chamber and at the outer edge of the ventilation hole, an inlet end and an outlet end are provided on the annular rotating air duct, the surface of the annular rotating air duct is a counterclockwise spiral ascending surface from the inlet end to the outlet end, the inlet end of the annular rotating air duct is connected with the separation air inlet pipe, the plane where the outlet end of the annular rotating air duct is located is on the same plane as the side of the separation air inlet pipe, the distance between the inlet end of the annular rotating air duct and the outlet end of the annular rotating air duct is consistent with the diameter of the separation air inlet pipe, and a dust removal port is provided on the separation flange and near the lower end of the separation chamber. The design of the annular rotating air duct can ensure smooth airflow cyclone, reduce vibration caused by wind resistance, and thus reduce noise; and the design of the dust removal port can facilitate the dust separated from the separation chamber to fall into the dust collecting chamber for collection.

[0009] Preferably, the separation core is in the shape of a hollow truncated cone, the diameter of the upper bottom surface of the separation core is smaller than the diameter of the lower bottom surface of the separation core, the lower bottom surface of the separation core is installed on the ventilation hole of the separation chamber, the plane where the lower bottom surface of the separation core is located is on the same plane as the plane where the outlet end of the annular rotating air duct is located, an annular groove is provided on the separation chamber and located at the position where the ventilation hole is located, an annular flange matching the annular groove is provided on the lower bottom surface of the separation core, and the separation core is installed on the ventilation hole of the separation chamber through the annular groove and the annular flange. The structural design of the separation core can ensure that the force direction of the airflow rotation in the separation chamber is consistent, increase the rotation speed of the airflow, and reduce the noise caused by vibration; and the detachable connection design between the separation core and the separation chamber can facilitate the disassembly and cleaning of the separation core when it is clogged with dust.

[0010] As another preferred embodiment, the separation core is in the shape of a hollow truncated cone, the diameter of the upper bottom surface of the separation core is smaller than the diameter of the lower bottom surface of the separation core, the lower bottom surface of the separation core is installed on the ventilation hole of the separation chamber, the plane where the lower bottom surface of the separation core is located is on the same plane as the plane where the outlet end of the annular rotating air duct is located, and the separation chamber and the separation core are integrally formed. Through the structural design of the separation core, it can be ensured that the force direction of the airflow rotation in the separation chamber is consistent, the rotation speed of the airflow is increased, and the noise caused by vibration is reduced; and the integral molding design of the separation core and the separation chamber can ensure the firmness of the separation core, and prevent the separation core from detaching from the separation chamber and affecting the separation effect.

[0011] Preferably, the upper bottom surface and side surfaces of the separation core are provided with one or more of evenly distributed circular holes, elliptical holes or grids, and the ratio between the diameter of the separation cavity and the diameter of the lower bottom surface of the separation core is 2:1-3:1. Through the design of the above structure, the centrifugal force generated by the rotation of the airflow can be maximized, and the separation effect of the airflow and dust can be maximized.

[0012] Preferably, the sealing cover plate is connected to the separation chamber by ultrasonic sealing. The integrated sealing connection design can ensure that the airflow and dust are sealed in the sealing chamber during separation, thereby maximizing the separation efficiency and reducing the noise caused by vibration.

[0013] As another preferred embodiment, a sealing guide edge is provided at the outer edge of the sealing cover plate, a mounting column is provided inside the sealing cover plate, a limiting column corresponding to the mounting column is provided on the separation chamber and at the position where the sealing chamber is located, the sealing cover plate is sealed and connected by matching the sealing guide edge with the sealing flange, and the sealing cover plate is fixedly installed on the separation chamber through the cooperation of the mounting column and the limiting column to form a sealing chamber. Through the detachable sealing connection design, the sealing cover plate can be easily disassembled to clean the sealing chamber while ensuring that the airflow and dust are sealed in the sealing chamber during separation, so as to maximize the separation efficiency and reduce the noise caused by vibration.

[0014] Preferably, the separation chamber is provided with an air outlet, the separation chamber is connected with the separation air outlet through the air outlet, a diverter plate is provided on the separation cavity and placed at the position of the air outlet, the diverter plate is semicircular in shape, reinforcing ribs are provided on the diverter plate and placed on the semicircular edge, the diverter plate and the separation cavity are integrally formed, a filter layer and an EVA sealing layer are provided on the separation air outlet, the filter layer is installed at the position of the separation air outlet, the EVA sealing layer is placed on the filter layer, and the separation cavity is sealed and connected to the motor housing through the EVA sealing layer. Through the design of the diverter plate, on the one hand, the air flow is sucked along the side wall of the separation outlet, which can improve the suction efficiency; on the other hand, through the design of the reinforcing ribs, the dust can be gathered at the position of the reinforcing ribs, which is convenient for the cleaning of the separation chamber; and the design of the filter layer can further separate the air flow to prevent dust from entering the motor housing and affecting the use of the entire vacuum cleaner; and the design of the EVA sealing layer not only ensures the sealed connection with the motor housing to achieve the purpose of improving the separation effect, but also reduces the vibration generated by the suction motor in the motor housing when it is working, thereby achieving the effect of reducing noise.

[0015] Preferably, the separation chamber, separation air inlet pipe, separation flange and sealing flange are integrally formed, and the separation chamber, separation air inlet pipe, separation flange, sealing flange, separation core and sealing cover are all made of PP material, and the wall thickness of the separation chamber, separation air inlet pipe, separation flange, sealing flange, separation core and sealing cover is uniform and 1.8-2.2mm. The design of PP material and wall thickness ensures the separation efficiency of airflow and dust, and reduces the vibration caused by impact during the circulation of airflow, thereby reducing noise.

[0016] Preferably, the dust collecting chamber is cylindrical in shape, and the area of ​​one end of the dust collecting chamber where the dust collecting air inlet pipe is provided gradually increases to the area of ​​the other end where the dust collecting chamber is connected to the motor housing, and the plane where the end of the dust collecting air inlet pipe away from the separation air inlet pipe is located forms an angle with the ground, and the size of the angle is 30-50 degrees. The structural design of the dust collecting chamber is conducive to maximizing the centrifugal force generated during air circulation and achieving the best separation effect of airflow and dust; and the design of the angle maximizes the contact surface with the ground during normal operation and maximizes the dust suction efficiency.

[0017] Preferably, a leakproof sealing ring is provided at the connection between the separation air inlet pipe and the dust collection air inlet pipe, the leakproof sealing ring is installed on the separation air inlet pipe, the leakproof sealing ring is made of soft rubber material, and a leakproof layer is provided on the leakproof sealing ring, the leakproof layer is composed of a plurality of fan-shaped leakproof sheets. Through the design of the fan-shaped leakproof sheets on the leakproof layer, the leakproof sealing ring is in a broken belt shape in the middle and can be freely flipped up and down. When the airflow enters the separation air inlet pipe, it is flipped up by the impact of the airflow to form a channel. When the work stops, it automatically recovers by the rebound of the rubber to cover the separation air inlet pipe, so as to prevent dust from flowing back out.

[0018] Preferably, the motor housing is provided with a suction motor, a motor switch, a dust collection switch and a flip plate, the suction motor is electrically connected to the motor switch, a rotating shaft is provided on the side of the lower end of the motor housing, the middle part of the dust collection switch is installed on the motor housing through the rotating shaft, a compression spring is provided between the upper part of the dust collection switch and the motor housing, a card slot is provided on the inner side of the lower part of the dust collection switch, a card tongue matching the card slot is provided on the dust collection chamber, the suction motor is fixedly installed inside the motor housing, the motor switch is fixedly installed on the outer surface of the motor housing, and the flip plate is installed on the upper end of the motor housing and is rotatably connected to the motor housing. The design of the dust collection switch can facilitate the disassembly and installation of the dust collection chamber and the motor housing; the design of the flip plate can facilitate the storage of the power cord, and only needs to open the flip plate to wrap the power cord around it, and the flip plate automatically fits on the motor housing when not in use.

[0019] The beneficial effects of the present invention are: the airflow and dust are separated more thoroughly, the cleaning of the entire vacuum cleaner can be convenient, and the vibration of the vacuum cleaner can be reduced, and the noise of the vacuum cleaner can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the explosion structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the separation chamber;

[0022] Figure 3 yes Figure 2 A top view of

[0023] Figure 4 It is a schematic diagram of the structure of the separation chamber;

[0024] Figure 5 It is a schematic diagram of the structure of the dust collecting chamber;

[0025] Figure 6 It is a schematic diagram of the structure of a leak-proof sealing ring.

[0026] In the figure: 1. flip plate, 2. motor housing, 3. motor switch, 4. rotating shaft, 5. dust collection switch, 6. sealing guide edge, 7. sealing cover plate, 8. mounting column, 9. leak-proof sealing ring, 10. dust collection chamber, 11. EVA sealing layer, 12. filter layer, 13. separation chamber, 14. separation core, 15. annular flange, 16. separation air outlet, 17. sealing flange, 18. separation flange, 19. ventilation hole, 20. annular groove, 21. dust removal port, 22. separation air inlet pipe, 23. reinforcing rib, 24. annular rotating air duct, 25. inlet end, 26. outlet end, 27. air outlet, 28. diverter plate, 29. leak-proof layer, 30. fan-shaped leak-proof sheet, 31. tongue, 32. dust collection air inlet pipe. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] like Figure 1 In the described embodiment, a vacuum cleaner with airflow dust separation comprises a motor housing 2 and a dust collecting chamber 10, wherein a separation chamber 13 is provided in the dust collecting chamber 10, a separation air inlet pipe 22 is provided at the lower end of the separation chamber 13, a separation air outlet 16 is provided at the upper end of the separation chamber 13, a separation flange 18 is provided on the left side of the separation chamber 13, the separation flange 18 on the separation chamber 13 and the inner side wall of the dust collecting chamber 10 constitute a separation chamber, a separation core 14 is provided in the separation chamber, a sealing flange 17 is provided on the right side of the separation chamber 13, a sealing cover plate 7 is provided on the sealing flange 17, the sealing flange 17 of the separation chamber 13 and the sealing cover plate 7 constitute a sealed chamber, the separation air inlet pipe 22 is communicated with the separation chamber, the separation chamber is communicated with the sealed chamber through the separation core 14, the sealed chamber is communicated with the separation air outlet 16, a dust collecting air inlet pipe 32 is provided at the lower end of the dust collecting chamber 10, the dust collecting air inlet pipe 32 is connected to the separation air inlet pipe 22, and the upper end of the dust collecting chamber 10 is connected to the motor housing 2.

[0029] like Figure 2 , Figure 4As shown, a ventilation hole 19 is provided on the separation chamber 13, and the separation chamber and the sealing chamber are connected through the ventilation hole 19. An annular rotating air duct 24 is provided in the separation chamber and at the outer edge of the ventilation hole 19. An inlet end 25 and an outlet end 26 are provided on the annular rotating air duct 24. The surface of the annular rotating air duct 24 is a counterclockwise spiral ascending surface from the inlet end 25 to the outlet end 26. The inlet end 25 of the annular rotating air duct 24 is connected to the separation air inlet pipe 22, and the plane where the outlet end 26 of the annular rotating air duct 24 is located is on the same plane as the side of the separation air inlet pipe 22. The distance between the inlet end 25 of the annular rotating air duct 24 and the outlet end 26 of the annular rotating air duct 24 is consistent with the diameter of the separation air inlet pipe 22. A dust removal port 21 is provided on the separation flange 18 and close to the lower end of the separation chamber 13.

[0030] The shape of the separation core 14 is a hollow truncated cone, the diameter of the upper bottom surface of the separation core 14 is smaller than the diameter of the lower bottom surface of the separation core 14, the lower bottom surface of the separation core 14 is installed on the ventilation hole 19 of the separation chamber 13, the plane where the lower bottom surface of the separation core 14 is located is on the same plane as the plane where the outlet end 26 of the annular rotating air duct 24 is located, and an annular groove 20 is provided on the separation chamber 13 and is located at the position where the ventilation hole 19 is located, and an annular flange 15 matching the annular groove 20 is provided on the lower bottom surface of the separation core 14, and the separation core 14 is installed on the ventilation hole 19 of the separation chamber 13 through the annular groove 20 and the annular flange 15. In addition, it can also be set that: the separation chamber 13 and the separation core 14 are integrally formed. The upper bottom surface and side surface of the separation core 14 are provided with one or more of uniformly distributed circular holes, elliptical holes or grids, and the ratio between the diameter of the separation chamber 13 and the diameter of the lower bottom surface of the separation core 14 is 2:1-3:1.

[0031] The sealing cover plate 7 is connected to the separation chamber 13 by ultrasonic sealing. In addition, it can also be configured as follows: a sealing guide edge 6 is provided at the outer edge of the sealing cover plate 7, a mounting column 8 is provided inside the sealing cover plate 7, a limiting column corresponding to the mounting column 8 is provided on the separation chamber 13 and located at the position where the sealing chamber is located, the sealing cover plate 7 is sealed and connected by matching the sealing guide edge 6 with the sealing flange 17, and the sealing cover plate 7 is fixedly installed on the separation chamber 13 through the cooperation of the mounting column 8 and the limiting column to form a sealing chamber.

[0032] like Figure 3As shown, an air outlet hole 27 is provided on the separation chamber, and the separation chamber is connected with the separation air outlet 16 through the air outlet hole 27. A diverter plate 28 is provided on the separation chamber 13 and is placed at the position of the air outlet hole 27. The diverter plate 28 is semicircular in shape, and a reinforcing rib 23 is provided on the diverter plate 28 and placed on the semicircular edge. The diverter plate 28 and the separation chamber 13 are integrally formed, and a filter layer 12 and an EVA sealing layer 11 are provided on the separation air outlet 16. The filter layer 12 is installed at the position of the separation air outlet 16, and the EVA sealing layer 11 is placed on the filter layer 12. The separation chamber 13 is sealed and connected to the motor housing 2 through the EVA sealing layer 11.

[0033] The separation chamber 13, the separation air inlet pipe 22, the separation flange 18 and the sealing flange 17 are integrally formed, and the separation chamber 13, the separation air inlet pipe 22, the separation flange 18, the sealing flange 17, the separation core 14 and the sealing cover plate 7 are all made of PP material, and the wall thickness of the separation chamber 13, the separation air inlet pipe 22, the separation flange 18, the sealing flange 17, the separation core 14 and the sealing cover plate 7 is uniform and the wall thickness is 1.8-2.2mm.

[0034] like Figure 5 As shown, the dust collecting chamber 10 is cylindrical in shape, and the area of ​​the dust collecting chamber 10 gradually increases from one end where the dust collecting air inlet pipe 32 is provided to the end where the dust collecting chamber 10 is connected to the motor housing 2. The plane where the end of the dust collecting air inlet pipe 32 is away from the separation air inlet pipe 22 forms an angle with the ground, and the size of the angle is 30-50 degrees. Figure 6 As shown, a leak-proof sealing ring 9 is provided at the connection between the separation air inlet pipe 22 and the dust collection air inlet pipe 32. The leak-proof sealing ring 9 is installed on the separation air inlet pipe 22. The leak-proof sealing ring 9 is made of soft rubber material. A leak-proof layer 29 is provided on the leak-proof sealing ring 9. The leak-proof layer 29 is composed of a number of fan-shaped leak-proof sheets 30.

[0035] The motor housing 2 is provided with a suction motor, a motor switch 3, a dust collection switch 5 and a flip plate 1, the suction motor is electrically connected to the motor switch 3, a rotating shaft 4 is provided on the side of the lower end of the motor housing 2, the middle part of the dust collection switch 5 is installed on the motor housing 2 through the rotating shaft 4, a compression spring is provided between the upper part of the dust collection switch 5 and the motor housing 2, a card slot is provided on the inner side of the lower part of the dust collection switch 5, and a card tongue 31 matching the card slot is provided on the dust collecting chamber 10, the suction motor is fixedly installed inside the motor housing 2, the motor switch 3 is fixedly installed on the outer surface of the motor housing 2, and the flip plate 1 is installed on the upper end of the motor housing 2 and is rotatably connected to the motor housing 2.

[0036] When in use, the dust collecting air inlet pipe 32 is designed at an angle of 30-50 degrees with the ground, so that the contact area between the vacuum cleaner and the ground is maximized during normal operation, thereby maximizing the dust suction efficiency; when the dust is sucked into the separation air inlet pipe 22 through the dust collecting air inlet pipe 32, it will pass through the leak-proof sealing ring 9. The structural design of the leak-proof sealing ring 9 makes the middle of the ring in a broken belt shape, which can be turned up and down freely. When the airflow enters the separation air inlet pipe 22, it is turned up by the impact of the airflow to form a channel. When the vacuum cleaner stops working, the rubber automatically recovers by rebounding to cover the separation air inlet pipe 22, thereby preventing dust from flowing back out; The airflow coming out of the separation air inlet pipe 22 enters the separation chamber of the separation chamber 13, and the airflow will rotate along the annular rotating air duct 24, and the dust in the airflow will be thrown onto the separation flange 18 under the action of centrifugal force, and then fall into the dust collecting chamber 10 through the dust removal port 21 on the separation flange 18 and be collected together; the structural design and size ratio design of the filter element can ensure that the force direction of the airflow rotation in the separation chamber 13 is consistent, thereby increasing the rotation speed of the airflow and reducing the noise caused by vibration, and can ensure that the centrifugal force generated by the airflow rotation reaches the maximum, ensuring that the airflow and The dust separation effect is maximized; when the airflow after dust separation enters the sealed chamber through the ventilation hole 19, it can ensure that the airflow and dust are sealed in the sealed chamber during separation, so that the separation efficiency is maximized, while reducing the noise caused by vibration; then it enters the separation air outlet 16 from the air outlet 27. In this process, the design of the diverter plate 28, on the one hand, allows the airflow to be sucked along the side wall of the separation air outlet 16, which can improve the suction efficiency; on the other hand, the design of the reinforcing rib 23 allows the dust to be gathered at the position where the reinforcing rib 23 is located, which is convenient for the separation chamber 1 3; the design of the filter layer 12 can further separate the airflow to prevent dust from entering the motor housing 2 and affecting the use of the entire vacuum cleaner; the design of the EVA sealing layer 11 not only ensures the sealed connection with the motor housing 2 to achieve the purpose of improving the separation effect, but also reduces the vibration generated by the suction motor in the motor housing 2 when working, thereby achieving the effect of reducing noise; the design of the PP material and the wall thickness ensure the separation efficiency of the airflow and dust, and at the same time reduce the vibration of the airflow caused by the impact during the circulation process, thereby reducing the noise.

Claims

1. A vacuum cleaner with airflow dust separation, Its characteristics are: The invention comprises a motor housing (2) and a dust collecting chamber (10), wherein a separation chamber (13) is provided in the dust collecting chamber (10), a separation air inlet pipe (22) is provided at the lower end of the separation chamber (13), a separation air outlet (16) is provided at the upper end of the separation chamber (13), a separation flange (18) is provided on the left side of the separation chamber (13), the separation flange (18) on the separation chamber (13) and the inner side wall of the dust collecting chamber (10) form a separation chamber, and a separation core (14) is provided in the separation chamber. ), a sealing flange (17) is provided on the right side of the separation chamber (13), a sealing cover plate (7) is provided on the sealing flange (17), the sealing flange (17) of the separation chamber (13) and the sealing cover plate (7) form a sealed chamber, the separation air inlet pipe (22) is connected to the separation chamber, the separation chamber is connected to the sealed chamber through the separation core (14), the sealed chamber is connected to the separation air outlet (16), and a dust collection air inlet pipe (32) is provided at the lower end of the dust collection chamber (10) The dust collection air inlet pipe (32) is connected to the separation air inlet pipe (22); the upper end of the dust collection chamber (10) is connected to the motor housing (2); an air outlet hole (27) is provided on the separation chamber; the separation chamber is connected to the separation air outlet (16) through the air outlet hole (27); a diverter plate (28) is provided on the separation chamber (13) and is located at the position of the air outlet hole (27); the diverter plate (28) is semicircular in shape; and the diverter plate (28) is provided on the diverter plate (28) and is A reinforcing rib (23) is provided on the semicircular edge; the diverter plate (28) and the separation chamber (13) are integrally formed; a filter layer (12) and an EVA sealing layer (11) are provided on the separation air outlet (16); the filter layer (12) is installed at the location of the separation air outlet (16); the EVA sealing layer (11) is placed on the filter layer (12); and the separation chamber (13) is sealed and connected to the motor housing (2) via the EVA sealing layer (11).

2. A vacuum cleaner with airflow dust separation according to claim 1, Its characteristics are: The separation chamber (13) is provided with a ventilation hole (19), the separation chamber and the sealing chamber are connected via the ventilation hole (19), an annular rotating air duct (24) is provided in the separation chamber and at the outer edge of the ventilation hole (19), the annular rotating air duct (24) is provided with an inlet end (25) and an outlet end (26), the surface of the annular rotating air duct (24) from the inlet end (25) to the outlet end (26) is a counterclockwise spiral ascending surface, and the annular rotating air duct (24) is provided with a plurality of air holes (24) disposed in the air hole (24). The inlet end (25) is in communication with the separation air inlet pipe (22); the plane where the outlet end (26) of the annular rotating air duct (24) is located is in the same plane as the side of the separation air inlet pipe (22); the distance between the inlet end (25) of the annular rotating air duct (24) and the outlet end (26) of the annular rotating air duct (24) is consistent with the diameter of the separation air inlet pipe (22); and a dust removal port (21) is provided on the separation flange (18) and near the lower end of the separation chamber (13).

3. A vacuum cleaner with airflow dust separation according to claim 2, Its characteristics are: The separation core (14) is in the shape of a hollow truncated cone. The diameter of the upper bottom surface of the separation core (14) is smaller than the diameter of the lower bottom surface of the separation core (14). The lower bottom surface of the separation core (14) is mounted on the ventilation hole (19) of the separation chamber (13). The plane where the lower bottom surface of the separation core (14) is located is on the same plane as the plane where the outlet end (26) of the annular rotating air duct (24) is located. An annular groove (20) is provided on the separation chamber (13) at the location where the ventilation hole (19) is located. An annular flange (15) matching the annular groove (20) is provided on the lower bottom surface of the separation core (14). The separation core (14) is mounted on the ventilation hole (19) of the separation chamber (13) by matching the annular groove (20) and the annular flange (15).

4. A vacuum cleaner with airflow dust separation according to claim 2, Its characteristics are: The separation core (14) is in the shape of a hollow truncated cone. The diameter of the upper bottom surface of the separation core (14) is smaller than the diameter of the lower bottom surface of the separation core (14). The lower bottom surface of the separation core (14) is mounted on the ventilation hole (19) of the separation chamber (13). The plane where the lower bottom surface of the separation core (14) is located is on the same plane as the plane where the outlet end (26) of the annular rotating air duct (24) is located. The separation chamber (13) and the separation core (14) are integrally formed.

5. A vacuum cleaner with airflow dust separation according to claim 3 or 4, Its characteristics are: The upper bottom surface and side surfaces of the separation core (14) are provided with one or more of evenly distributed circular holes, elliptical holes or grids, and the ratio between the diameter of the separation cavity (13) and the diameter of the lower bottom surface of the separation core (14) is 2:1-3:

1.

6. A vacuum cleaner with airflow dust separation according to claim 1, Its characteristics are: The sealing cover plate (7) and the separation chamber (13) are connected by ultrasonic sealing.

7. A vacuum cleaner with airflow dust separation according to claim 1, Its characteristics are: The sealing cover plate (7) is provided with a sealing guide edge (6) at the outer edge thereof, a mounting column (8) is provided inside the sealing cover plate (7), and a limiting column corresponding to the mounting column (8) is provided on the separation chamber (13) and located at the position where the sealing chamber is located. The sealing cover plate (7) is sealedly connected to the sealing flange (17) by matching the sealing guide edge (6), and the sealing cover plate (7) is fixedly mounted on the separation chamber (13) by the cooperation of the mounting column (8) and the limiting column to form a sealing chamber.

8. A vacuum cleaner with airflow dust separation according to claim 1, Its characteristics are: The separation chamber (13), the separation air inlet pipe (22), the separation flange (18) and the sealing flange (17) are integrally formed; the separation chamber (13), the separation air inlet pipe (22), the separation flange (18), the sealing flange (17), the separation core (14) and the sealing cover plate (7) are all made of PP material; the wall thickness of the separation chamber (13), the separation air inlet pipe (22), the separation flange (18), the sealing flange (17), the separation core (14) and the sealing cover plate (7) is uniform and the wall thickness is 1.8-2.2 mm.

9. A vacuum cleaner with airflow dust separation according to claim 1, Its characteristics are: The dust collecting chamber (10) is cylindrical in shape, and the area of ​​one end of the dust collecting chamber (10) provided with the dust collecting air inlet pipe (32) gradually increases to the area of ​​the end of the dust collecting chamber (10) connected to the motor housing (2), and the plane where the end of the dust collecting air inlet pipe (32) away from the separation air inlet pipe (22) is located forms an angle with the ground, and the size of the angle is 30-50 degrees.

10. A vacuum cleaner with airflow dust separation according to claim 1 or 9, Its characteristics are: A leakproof sealing ring (9) is provided at the connection between the separation air inlet pipe (22) and the dust collection air inlet pipe (32); the leakproof sealing ring (9) is installed on the separation air inlet pipe (22); the leakproof sealing ring (9) is made of a soft rubber material; a leakproof layer (29) is provided on the leakproof sealing ring (9); the leakproof layer (29) is composed of a plurality of fan-shaped leakproof sheets (30).

11. A vacuum cleaner with airflow dust separation according to claim 1, Its characteristics are: The motor housing (2) is provided with a suction motor, a motor switch (3), a dust collection switch (5) and a flip plate (1); the suction motor is electrically connected to the motor switch (3); a rotating shaft (4) is provided on the side surface of the lower end of the motor housing (2); the middle part of the dust collection switch (5) is mounted on the motor housing (2) via the rotating shaft (4); a compression spring is provided between the upper part of the dust collection switch (5) and the motor housing (2); a slot is provided on the inner side of the lower part of the dust collection switch (5); a tongue (31) matching the slot is provided on the dust collection chamber (10); the suction motor is fixedly mounted inside the motor housing (2); the motor switch (3) is fixedly mounted on the outer surface of the motor housing (2); and the flip plate (1) is mounted on the upper end of the motor housing (2) and is rotatably connected to the motor housing (2).

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