A cyclone dust cup and a dust cleaner

Abstract

This utility model discloses a cyclone dust collector and a vacuum cleaner. The cyclone dust collector includes: a shell with an air inlet on its side wall and an air outlet on its top; a primary cyclone separator, assembled inside the shell, including a primary cyclone dust-separating section at the top and an air inlet section at the bottom, the primary cyclone dust-separating section having a primary cyclone duct on its peripheral wall, and the air inlet section having several air inlet ducts; and a secondary cyclone separator, assembled inside the shell, including a secondary cyclone dust-separating section fitted inside the air inlet section of the primary cyclone separator and a dust-gathering section below the secondary cyclone dust-separating section, the secondary cyclone dust-separating section including several secondary cyclone ducts. The air inlet section includes several guide vanes arranged in a circumferential direction, the guide vanes being arranged in a cyclone shape so that the air inlet duct formed between the guide vanes is cyclone-shaped, the cyclone direction of the air inlet duct from the outside to the inside is the same as the cyclone direction of the secondary cyclone duct, and opposite to the cyclone direction of the primary cyclone duct.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, and in particular to a cyclone separator dust cup and a vacuum cleaner. Background Technology

[0002] Cyclone separation technology is a technique that utilizes the centrifugal force generated by airflow rotation to achieve gas-solid separation, and it is widely used in vacuum cleaners, industrial dust removal equipment, and other fields. In the dust cup design of vacuum cleaners, cyclone separation technology uses high-speed rotation of dust-laden airflow within the separation chamber. Centrifugal force throws denser dust particles against the chamber wall, causing them to fall into the collection area, while the separated clean airflow exits from the central area. Although traditional single-stage cyclone separation structures can achieve basic gas-solid separation, their efficiency in separating fine particles is relatively low due to limitations in airflow path design.

[0003] To improve separation efficiency, multi-stage cyclone separation structures have emerged in existing technologies, such as a combination of primary and secondary cyclone separation. Primary cyclone separation is typically used for the initial separation of larger dust particles, while secondary cyclone separation further separates finer particles. However, in existing technologies, the connection between primary and secondary cyclone separation is usually achieved only through conventional perforated structures. This often results in dust-laden airflow entering the secondary separation stage before being fully separated in the primary stage, or difficulties in the airflow transitioning from the primary to the secondary stage, thus affecting the dust separation effect.

[0004] Therefore, it is necessary to propose a technical solution to overcome the shortcomings of existing technologies. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model proposes a cyclone dust separator cup, which can improve dust separation efficiency and dust separation effect.

[0006] This utility model is achieved through the following technical solution: a cyclone separator dust cup, comprising:

[0007] The outer casing has an air inlet on its side wall for dust-laden air to flow in, and an air outlet on its top for the airflow to be discharged after the dust has been separated.

[0008] A primary cyclone separator is assembled inside the outer shell. The primary cyclone separator includes a primary cyclone dust separation section at the top and an air inlet section at the bottom. A primary cyclone air duct is provided on the peripheral wall of the primary cyclone dust separation section, and the air inlet section is provided with several air inlet ducts.

[0009] A secondary cyclone separator is assembled inside the outer shell. The secondary cyclone separator includes a secondary cyclone dust separation section sleeved in the air inlet section of the primary cyclone separator and a dust collection section located below the secondary cyclone dust separation section. The secondary cyclone dust separation section includes a plurality of secondary cyclone ducts.

[0010] The air inlet section includes a plurality of guide vanes arranged in a circumferential direction. The plurality of guide vanes are arranged in a cyclone shape so that the air inlet duct formed between adjacent guide vanes is cyclone-shaped. The cyclone direction of the air inlet duct from the outside to the inside is the same as the cyclone direction of the secondary cyclone duct and opposite to the cyclone direction of the primary cyclone duct.

[0011] As a further improved technical solution, the primary cyclone duct extends in a spiral shape from top to bottom from the air inlet to the air intake duct, and the primary cyclone duct gradually narrows from the air inlet to the air intake duct.

[0012] As a further improved technical solution, the primary cyclone duct is provided with multiple spiral-extending air guide grooves or air guide ribs.

[0013] As a further improved technical solution, the outer edge of the guide vane is rounded, and the inner edge is pointed.

[0014] As a further improved technical solution, the secondary cyclone dust separation section includes at least three cyclone blades distributed in the circumferential direction, with two adjacent cyclone blades partially overlapping radially in the secondary cyclone dust separation section.

[0015] As a further improved technical solution, the cyclone separator dust cup includes an upper sleeve, which is fitted inside the primary cyclone separator cylinder and has a central cylinder extending into the secondary cyclone dust separation section. A secondary cyclone dust separation chamber is formed between the cyclone blades and the outer wall surface of the central cylinder, and a primary cyclone dust separation chamber is formed between the primary cyclone separator cylinder and the inner wall surface of the outer shell.

[0016] As a further improved technical solution, the cyclone separator dust cup also includes a filter assembly fitted at the top opening of the upper sleeve, and a primary dust-blocking ring disposed at the lower end of the primary cyclone separator cylinder.

[0017] As a further improved technical solution, the secondary cyclone separator includes a secondary dust baffle connected to the lower end of the dust collection section. The secondary dust baffle is integrated with the dust collection section and has several lateral openings between it and the dust collection section.

[0018] As a further improved technical solution, the cyclone separator dust cup includes a lower sleeve, which is connected to the lower part of the first-stage cyclone separator or is integrally formed with the first-stage cyclone separator. The lower sleeve is sleeved on the outside of the dust collection section. The second-stage dust baffle is located inside the lower sleeve and has a gap between it and the bottom opening of the lower sleeve to form a dust collection chamber. The outer shell has a dust discharge port and a cover plate covering the dust discharge port. The bottom opening of the lower sleeve corresponds to the dust discharge port.

[0019] This utility model is also achieved through the following technical solution: a vacuum cleaner, which includes a suction head assembly, a connecting tube and a cyclone dust separation cup as described above, wherein one end of the connecting tube is connected to the suction head assembly and the other end is connected to the air inlet of the cyclone dust separation cup.

[0020] The cyclone dust collector provided by this utility model has a primary cyclone separator cylinder comprising an upper primary cyclone dust separation section and a lower air inlet section. The primary cyclone dust separation section has a primary cyclone air duct on its peripheral wall, and the air inlet section has several air inlet ducts. The secondary cyclone separator cylinder comprises a secondary cyclone dust separation section fitted inside the air inlet section of the primary cyclone separator cylinder and a dust collection section located below the secondary cyclone dust separation section. The secondary cyclone dust separation section includes several secondary cyclone air ducts. The air inlet section includes several guide vanes arranged in a circumferential direction. The guide vanes are arranged in a cyclone shape so that the air inlet air ducts formed between adjacent guide vanes are cyclone-shaped. The cyclone direction of the air inlet air duct from the outside to the inside is the same as the cyclone direction of the secondary cyclone air duct, and opposite to the cyclone direction of the primary cyclone air duct. This design improves the airflow guide structure of the air inlet section from the primary cyclone dust separation section to the secondary cyclone dust separation section, enabling the dust-laden airflow to achieve primary separation in the primary cyclone dust separation section, thus improving the dust separation effect and efficiency. Then, the fine dust is guided by the airflow guide structure into the secondary cyclone dust separation section for secondary separation. Attached Figure Description

[0021] Figure 1 This is a three-dimensional assembly diagram of the cyclone separator dust cup of this utility model.

[0022] Figure 2 This is a three-dimensional composite view of the cyclone separator dust cup of this utility model from another perspective.

[0023] Figure 3 This is a three-dimensional exploded view of the cyclone separator dust cup of this utility model.

[0024] Figure 4 This is a perspective view of the primary cyclone separator in the cyclone separator dust cup of this utility model.

[0025] Figure 5 This is a three-dimensional view of the secondary cyclone separator in the cyclone separator dust cup of this utility model.

[0026] Figure 6 This is a longitudinal sectional view of the cyclone separator dust cup of this utility model.

[0027] Figure 7 This is a cross-sectional view of the cyclone separator dust cup of this utility model.

[0028] Figure 8 This is a three-dimensional exploded view of another embodiment of the cyclone separator dust cup of this utility model.

[0029] Figure 9 This is a longitudinal sectional view of another embodiment of the cyclone separator dust cup of this utility model.

[0030] The attached diagram is labeled as follows: 100, Cyclone dust cup; 1, Outer shell; 101, Air inlet; 102, Air outlet; 103, Cover plate; 2, Primary cyclone separator; 21, Primary cyclone duct; 211, Air guide groove; 22, Primary cyclone dust separation section; 23, Air inlet section; 230, Air inlet duct; 231, Air guide vane; 3, Secondary cyclone separator; 301, Secondary cyclone dust separation chamber; 31, Secondary cyclone dust separation section; 310, Secondary cyclone duct; 311, Cyclone vane; 32, Dust collection section; 320, Side opening; 33, Secondary dust baffle; 4, Upper sleeve; 41, Central sleeve; 5, Lower sleeve; 501, Dust collection chamber; 6, Primary dust baffle ring; 7, Filter assembly; 71, Sponge; 72, Filter cotton sheet; 73, Mounting bracket; 8, Sealing ring. Detailed Implementation

[0031] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1 to 7As shown, this utility model discloses a cyclone dust separator cup 100, which includes a shell 1, a primary cyclone separator 2, and a secondary cyclone separator 3. The shell 1 has an air inlet 101 on its side wall for dust-laden airflow to enter, and an air outlet 102 on its top for the airflow after dust separation to exit. The primary cyclone separator 2 is assembled inside the shell 1. The primary cyclone separator 2 includes a primary cyclone dust-separating section 22 at the upper part and an air inlet section 23 at the lower part. A primary cyclone air duct 21 is provided on the peripheral wall of the primary cyclone dust-separating section 22, and the air inlet section 23 has several air inlet ducts 230. The secondary cyclone separator 3 is assembled inside the shell 1. The secondary cyclone separator 3 includes a secondary cyclone dust-separating section 31 fitted inside the air inlet section 23 of the primary cyclone separator 2 and a dust-collecting section 32 located below the secondary cyclone dust-separating section 31. The secondary cyclone dust-separating section 31 includes several secondary cyclone air ducts 310.

[0034] The air inlet section 23 includes a plurality of guide vanes 231 arranged in a circumferential direction. These guide vanes 231 are arranged in a cyclone shape, such that the air inlet duct 230 formed between adjacent guide vanes 231 is also cyclone-shaped. The cyclone direction of the air inlet duct 230 from the outside to the inside is as follows: Figure 7 As indicated by the middle arrow F2, its direction is similar to that of the secondary cyclone duct 310. Figure 7 The arrows F3 and F3 are aligned in the same direction and are aligned with the cyclone direction of the primary cyclone duct 21. Figure 7 The middle arrow F1 indicates a reverse setting.

[0035] This design improves the airflow guide structure of the air inlet section 23, which directs airflow from the primary cyclone dust separation section 22 to the secondary cyclone dust separation section 31. This allows the dust-laden airflow to achieve primary separation in the primary cyclone dust separation section 22, improving the dust separation effect and efficiency. Then, fine dust particles are guided by the airflow guide structure into the secondary cyclone dust separation section 31 for secondary separation.

[0036] Combination Figures 1 to 7 As shown, in this embodiment, the cyclone separator dust cup 100 includes core components such as a shell 1, a primary cyclone separator 2, a secondary cyclone separator 3, an upper sleeve 4, a lower sleeve 5, and a filter assembly 7.

[0037] like Figures 1 to 3 As shown, the outer shell 1 serves as the main container, with an air inlet 101 on its side wall, an air outlet 102 on its top, and a dust discharge port formed by an openable cover 103 at the bottom. The primary cyclone separator 2 and the secondary cyclone separator 3 are installed inside the outer shell 1 in a nested structure, forming a two-stage separation chamber.

[0038] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the primary cyclone separator 2 includes an upper primary cyclone dust separation section 22 and a lower air inlet section 23, which are integrally formed. An annular primary cyclone dust separation chamber is formed between the primary cyclone dust separation section 22 and the inner wall of the outer shell 1. A primary cyclone air duct 21 is formed along a spiral trajectory on the peripheral wall of the primary cyclone dust separation section 22. Figure 4 As shown, the primary cyclone duct 21 extends in a downward spiral from the air inlet 101 to the air inlet duct 230, and the primary cyclone duct 21 gradually narrows from the air inlet 101 to the air inlet duct 230. That is, the primary cyclone duct 21 starts from the air inlet 101 and extends to the air inlet section 23 in a downward spiral, and the cross-section of the channel is designed to gradually narrow. This structure ensures that the airflow does not become weak due to proximity to the downstream during the rotational flow, so that the airflow maintains a high speed from entering the primary cyclone duct 21 to exiting, improving dust separation efficiency and effect, and ensuring that the airflow after primary dust separation still has sufficient power to enter the secondary cyclone separator 3 for further dust separation. In particular, the wall surface of the primary cyclone duct 21 is processed with multiple spiral-shaped air guide grooves 211 or air guide ribs to enhance the centrifugal force by strengthening the rotational motion of the airflow.

[0039] The air inlet section 23, serving as a connecting component between the primary and secondary dust separation processes, includes multiple guide vanes 231 evenly distributed circumferentially. The outer edges of each guide vane 231 are rounded, while the inner edges are pointed. These guide vanes 231 employ this special three-dimensional curved surface design, with rounded outer edges to reduce airflow resistance and pointed inner edges to enhance airflow guidance. Specifically, the cross-section of each guide vane 231 is seed-shaped or teardrop-shaped, with the larger end forming the outer edge and the smaller end forming the inner edge. Adjacent guide vanes 231 form an air inlet duct 230, whose cyclone direction, i.e., the rotation direction from the outside in, is opposite to that of the primary cyclone duct 21. Figure 7 As shown, the cyclone direction of the air inlet duct 230 is F2, which is in Figure 7 From a visual perspective, the direction is clockwise; while the cyclone direction of the primary cyclone duct 21 is shown as F1, which is... Figure 7 The rotation direction is counterclockwise from the viewing angle. This reverse design allows for better dust separation and creates turbulence to achieve airflow conversion, preventing the airflow from becoming laminar due to centrifugal force during the primary dust separation process, which would hinder its entry into the secondary cyclone separator 3. Simultaneously, this unique structural design of the outer and inner edges of the guide vanes 231 allows the airflow after primary separation to reverse its direction upon entering the inlet section 23, preparing the flow field for entry into the secondary separation system.

[0040] like Figure 3 , Figures 5 to 7 As shown, the secondary cyclone dust separation section 31 includes at least three cyclone blades 311 distributed in the circumferential direction, with adjacent cyclone blades 311 partially overlapping radially in the secondary cyclone dust separation section 31. Specifically, the secondary cyclone separator 3 includes an upper secondary cyclone dust separation section 31 and a lower dust collection section 32. The secondary cyclone dust separation section 31 is composed of at least three cyclone blades 311 arranged equidistantly in the circumferential direction; in this embodiment, there are four cyclone blades 311, but in other embodiments, there can be five, six, or more. Adjacent cyclone blades 311 partially overlap radially, and this staggered arrangement avoids airflow short-circuiting. Each cyclone blade 311 and the outer wall of the central cylinder 41 of the upper sleeve 4 together form the secondary cyclone dust separation chamber 301, where the dust-laden airflow forms a high-speed rotating flow field. The cyclone direction F3 of the secondary cyclone duct 310 is in the same direction as the cyclone direction F2 of the inlet duct 230, ensuring a smooth airflow transition and avoiding energy loss due to sudden changes in direction.

[0041] The cyclone dust collector 100 includes an upper sleeve 4 fitted inside the primary cyclone separator 2, and a central cylinder 41 extending into the secondary cyclone dust collection section 31. A secondary cyclone dust collection chamber 301 is formed between the outer wall of the cyclone blades 311 and the central cylinder 41, and a primary cyclone dust collection chamber is formed between the primary cyclone separator 2 and the inner wall of the outer shell 1. The secondary cyclone separator 3 includes a secondary dust baffle 33 connected to the lower end of the dust collection section 32. The secondary dust baffle 33 is integrally connected to the dust collection section 32 and has several lateral openings 320 between it and the dust collection section 32. Specifically, the secondary dust baffle 33 is connected below the dust collection section 32, and the dust collection section 32 and the secondary dust baffle 33 adopt a hollow design, with the lateral openings 320 for allowing micro-dust to fall downward into the dust collection chamber 501. A gap is left between the secondary dust-blocking plate 33 and the bottom opening of the lower sleeve 5 to form a dust collection chamber 501 for collecting secondary separated dust. In this embodiment, the dust-collecting section 32 is conical in shape to guide dust downwards. In this embodiment, the secondary dust-blocking plate 33 is an upwardly convex arc-shaped plate to suppress dust.

[0042] The upper sleeve 4 serves as the core flow guiding component, forming a secondary cyclone dust separation chamber 301 with the secondary cyclone separator 3, and also allowing the separated airflow to exit from the outlet 102. The central cylinder 41 of the upper sleeve 4 extends to the secondary cyclone separator 3 to form the secondary cyclone dust separation chamber 301. A filter assembly 7 is installed at the top opening of the upper sleeve 4. This assembly consists of a sponge 71, a filter cotton sheet 72, and a mounting bracket 73. The fine pores inside the sponge 71 can filter fine dust particles. The filter cotton sheet 72 covers the sponge 71 and is used to adsorb and filter even finer dust particles. In some embodiments, the filter cotton sheet 72 can be made of Gothenburg filter cotton. After passing through the filter assembly 7, the airflow after secondary separation finally exits from the outlet 102 at the top of the outer casing 1. A sealing ring 8 is also provided on the filter assembly 7 for sealing connection with other docking components. The sealing ring 8 can be assembled onto the mounting bracket 73.

[0043] The cyclone separator dust cup 100 includes a lower sleeve 5 connected below the primary cyclone separator 2 and fitted outside the dust collection section 32. The secondary dust baffle 33 is located inside the lower sleeve 5 and has a gap between it and the bottom opening of the lower sleeve 5 to form a dust collection chamber 501. The outer shell 1 has a dust discharge port and a cover plate 103 covering the dust discharge port. The bottom opening of the lower sleeve 5 corresponds to the dust discharge port, ensuring that dust in the dust collection chamber 501 can be periodically discharged by opening the cover plate 103. In this embodiment, a sealing ring is provided on the edge of the cover plate 103 to ensure a sealed seal of the dust discharge port and prevent dust leakage. The cover plate 103 is pivotally connected to the bottom wall of the outer shell 1 and is provided with a torsion spring to keep the cover plate 103 in a closed state by means of the elastic force of the torsion spring. A pressing protrusion is provided on the cover plate 103. By pressing the pressing protrusion, the cover plate 103 can be lifted to open the dust discharge port.

[0044] Furthermore, a primary dust-blocking ring 6 is provided at the lower end of the primary cyclone separator 2. In this embodiment, the primary dust-blocking ring 6 is fixedly connected to the bottom of the primary cyclone separator 2 using screws. In this embodiment, the primary dust-blocking ring 6 adopts an inverted conical structure design, which serves to intercept dust that may be back-mixed within the primary separation chamber, and also creates a certain amount of wind resistance to guide the airflow smoothly into the air inlet section 23. In some embodiments, the primary dust-blocking ring 6 is made of silicone.

[0045] The working principle of the cyclone dust separator cup 100 provided by this utility model is as follows. During assembly, the outer shell 1, primary cyclone separator 2, secondary cyclone separator 3, upper sleeve 4, lower sleeve 5, and filter assembly 7 can be assembled together using detachable connection methods such as snap-fit, rotating buckle, or screws. In use, the dust-laden airflow enters through the inlet 101 and first forms a spiral motion along the primary cyclone duct 21. Under centrifugal force, large dust particles are thrown towards the inner wall of the outer shell 1 and slide down the wall to the bottom of the outer shell 1. When the airflow after primary separation passes through the inlet section 23, its rotation direction changes under the action of the reverse guide vane 231. After entering the secondary cyclone dust separation chamber 301, a secondary rotating flow field is formed, performing secondary separation of residual micro-dust. The separated clean airflow is filtered by the filter assembly 7 and discharged. The separated dust is deposited at the bottom of the primary dust separation chamber and in the dust collection chamber 501, respectively. When dust needs to be cleaned, the cover plate 103 can be opened to discharge the fine dust in the dust collection chamber 501 through the dust discharge port, and the outer shell 1 can be removed to discharge the large dust particles in the primary dust separation chamber.

[0046] Please see Figure 8 and Figure 9 The illustration shown is of another embodiment of the dust separator cup of this utility model. It is similar to... Figures 1 to 7 The main difference in the illustrated embodiment is that, in this embodiment, the lower sleeve 5 and the first-stage cyclone separator 2 are integrally formed. This arrangement reduces the number of parts, simplifies the assembly process, and enhances the stability of the component structure. Other components in this embodiment are similar to... Figures 1 to 7 The embodiments shown are the same and can be understood by referring to them, so they will not be described again here.

[0047] This utility model also provides a vacuum cleaner, which includes a suction head assembly, a connecting tube, and a cyclone dust collector 100 as described above. One end of the connecting tube is connected to the suction head assembly, and the other end is connected to the air inlet 101 of the cyclone dust collector 100.

[0048] As can be seen from the above description of the specific embodiments, the present invention forms a three-stage dust removal system through primary separation, secondary separation, and a multi-stage filtration assembly 7 composed of sponge 71 and filter cotton sheet 72, effectively improving dust removal efficiency and effect. Specifically, the cyclone separator dust cup 100 and vacuum cleaner provided by the present invention have at least the following beneficial effects: the reverse design of the primary cyclone duct 21 and the air inlet duct 230 causes a reversing turbulence effect when the airflow changes between stages, enhancing the micro-dust separation capability; the special curved shape of the guide vane 231 reduces the loss of airflow rotational kinetic energy and improves separation efficiency; the combined use of the primary dust-blocking ring 6 and the secondary dust-blocking sheet 33 effectively prevents dust back-mixing.

[0049] This utility model has been described through several specific embodiments. Those skilled in the art should understand that various modifications and equivalent substitutions can be made to this utility model without departing from its scope. Furthermore, various modifications can be made to this utility model for specific situations or circumstances without departing from its scope. Therefore, this utility model is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims of this utility model.

Claims

1. A cyclone separator dust cup, characterized in that, include: The outer casing (1) has an air inlet (101) on its side wall for dust-laden air to flow in, and an air outlet (102) on its top for the airflow to be discharged after the dust has been separated. A primary cyclone separator (2) is assembled inside the outer shell (1). The primary cyclone separator (2) includes a primary cyclone dust separation section (22) located at the upper part and an air inlet section (23) located at the lower part. A primary cyclone air duct (21) is provided on the peripheral wall of the primary cyclone dust separation section (22), and the air inlet section (23) is provided with a plurality of air inlet ducts (230). A secondary cyclone separator (3) is assembled inside the outer shell (1). The secondary cyclone separator (3) includes a secondary cyclone dust separation section (31) sleeved in the air inlet section (23) of the primary cyclone separator (2) and a dust collection section (32) located below the secondary cyclone dust separation section (31). The secondary cyclone dust separation section (31) includes a plurality of secondary cyclone ducts (310). The air inlet section (23) includes a plurality of guide vanes (231) arranged in a circumferential direction. The plurality of guide vanes (231) are arranged in a cyclone shape so that the air inlet duct (230) formed between adjacent guide vanes (231) is cyclone-shaped. The cyclone direction of the air inlet duct (230) from the outside to the inside is the same as the cyclone direction of the secondary cyclone duct (310) and opposite to the cyclone direction of the primary cyclone duct (21).

2. The cyclone separator dust cup as described in claim 1, characterized in that, The primary cyclone duct (21) extends in a spiral shape from top to bottom from the air inlet (101) to the air inlet duct (230), and the primary cyclone duct (21) gradually narrows from the air inlet (101) to the air inlet duct (230).

3. The cyclone separator dust cup as described in claim 2, characterized in that, The primary cyclone duct (21) is provided with multiple spiral-extending air guide grooves (211) or air guide ribs.

4. The cyclone separator dust cup as described in claim 1, characterized in that, The outer edge of the guide vane (231) is rounded, and the inner edge is pointed.

5. The cyclone separator dust cup as described in claim 1, characterized in that, The secondary cyclone dust separation section (31) includes at least three cyclone blades (311) distributed in the circumferential direction, with two adjacent cyclone blades (311) partially overlapping in the radial direction of the secondary cyclone dust separation section (31).

6. The cyclone separator dust cup as described in claim 5, characterized in that, The cyclone dust collector (100) includes an upper sleeve (4), which is fitted inside the first-stage cyclone separator (2) and has a central cylinder (41) extending into the second-stage cyclone dust separation section (31). A second-stage cyclone dust separation chamber (301) is formed between the outer wall of the cyclone blade (311) and the central cylinder (41). A first-stage cyclone dust separation chamber is formed between the first-stage cyclone separator (2) and the inner wall of the outer shell (1).

7. The cyclone separator dust cup as described in claim 6, characterized in that, The cyclone separator dust cup (100) also includes a filter assembly (7) fitted at the top opening of the upper sleeve (4) and a primary dust baffle ring (6) disposed at the lower end of the primary cyclone separator (2).

8. The cyclone separator dust cup as described in claim 1, characterized in that, The secondary cyclone separator (3) includes a secondary dust baffle (33) connected to the lower end of the dust collection section (32). The secondary dust baffle (33) is integrated with the dust collection section (32) and has several lateral openings (320) between it and the dust collection section (32).

9. The cyclone separator dust cup as described in claim 8, characterized in that, The cyclone separator dust cup (100) includes a lower sleeve (5), which is connected to the lower part of the first-stage cyclone separator (2) or is integrally formed with the first-stage cyclone separator (2). The lower sleeve (5) is sleeved on the outside of the dust collection section (32). The secondary dust baffle (33) is located inside the lower sleeve (5) and has a gap between it and the bottom opening of the lower sleeve (5) to form a dust collection chamber (501). The outer shell (1) has a dust discharge port and a cover plate (103) covering the dust discharge port. The bottom opening of the lower sleeve (5) corresponds to the dust discharge port.

10. A vacuum cleaner, characterized in that, It includes a suction head assembly, a connecting tube, and a cyclone separator dust cup (100) as described in any one of claims 1 to 9, wherein one end of the connecting tube is connected to the suction head assembly and the other end is connected to the air inlet (101) of the cyclone separator dust cup (100).

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