Cyclone separation assembly, cyclone separation device and dust collector

Abstract

The utility model provides a cyclone separation assembly, a cyclone separation device and a dust collector. The cyclone separator comprises a cyclone separator body, the cyclone separator body comprises a main body, a cyclone cavity is formed in the main body, the cyclone cavity penetrates to the two ends to form a dust outlet end and an air outlet end, and a plurality of air guide openings formed in the circumferential direction of the cyclone cavity at intervals are formed in the side wall of the main body. And the plurality of air guide ports are communicated with the cyclone cavity. According to the cyclone separator, the multiple air guide openings are formed in the side wall of the main body, so that the radial size of the cyclone separator can be reduced, miniaturization of the cyclone separator is facilitated, and air resistance can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a cyclone separation component, a cyclone separation device, and a vacuum cleaner. Background Technology

[0002] With the increasing demand for cleaning tools in modern households, handheld vacuum cleaners have become widely popular due to their convenience and efficiency. However, after prolonged use, the filters of handheld vacuum cleaners accumulate a lot of dust and debris, easily clogging the suction channel and requiring regular filter cleaning. One proposed solution is to add a cyclone separator inside the vacuum cleaner to initially separate the dust and reduce filter clogging. However, the cyclone separators in these technologies use an external air guide duct that directs airflow, causing the air inside the separator to rotate. This design results in a relatively large cyclone separator, making it unsuitable for smaller vacuum cleaners, especially car vacuum cleaners. Utility Model Content

[0003] In view of this, embodiments of the present invention provide a cyclone separator, a cyclone separation device, and a vacuum cleaner. By opening air guides on the side wall of the main body, the radial dimension of the cyclone separator can be reduced, thereby facilitating the miniaturization of the cyclone separator.

[0004] On the one hand, the present invention provides a cyclone separator, which includes a cyclone separator body, the cyclone separator body having a cyclone cavity inside the body, the cyclone cavity extending to both ends to form a dust outlet end and an air outlet end, and a plurality of air guide ports spaced apart along the circumference of the cyclone cavity on the side wall of the body, the plurality of air guide ports being connected to the cyclone cavity.

[0005] In some embodiments, the sidewall of the main body has an inner sidewall facing the cyclone cavity and an outer sidewall away from the cyclone cavity; the air guide has an air guide surface located between the inner sidewall and the outer sidewall of the main body, the air guide surface is connected to the inner sidewall to form an intersection, the tangential surface of the inner sidewall at the intersection forms an angle with the air guide surface, the angle being greater than or equal to 0° and less than or equal to 30°.

[0006] In some embodiments, a plurality of air guide blades are provided on the side wall of the main body at intervals along the circumference, and the plurality of air guide blades and the plurality of air guides are alternately arranged along the circumference; the plurality of air guide blades include a first air guide blade and a second air guide blade, wherein the arc length of the first air guide blade in the circumference direction is smaller than the arc length of the second air guide blade in the circumference direction.

[0007] In some embodiments, the arc length of the second guide vane in the circumferential direction is half the circumferential length of the body, and / or, the number of the first guide vanes is set to multiple.

[0008] In some embodiments, the cyclone separator further includes a dust collection chamber connected to the dust outlet end of the main body to communicate with the cyclone chamber.

[0009] On the other hand, another embodiment of the present invention provides a cyclone separation device, comprising: a cyclone separation component and a separation chamber as described in any of the above embodiments, wherein the cyclone separation component is disposed in the separation chamber, and the air guide is connected to the separation chamber; the separation chamber includes an air guide section disposed on the side wall of the separation chamber, the air guide section having an air inlet and an air outlet, the air outlet facing the interior of the separation chamber, the air guide section having an air guide surface near the air outlet, the air guide surface being connected to the air outlet, and the air guide surface being inclined radially to the separation chamber.

[0010] In some embodiments, a baffle is provided between the side wall of the separation chamber and the cyclone separator, the baffle being used to prevent airflow from flowing back to the air guide after passing through the interior of the separation chamber; the baffle is connected to the inner side wall of the separation chamber and the cyclone separator respectively along a radial direction parallel to the separation chamber; and / or, the baffle extends along the axial direction of the cyclone separator, and the positions of the air outlet at the opposite ends of the axial direction of the cyclone separator do not exceed the positions of the baffle at the opposite ends of the axial direction of the cyclone separator.

[0011] In some embodiments, a connecting plate is provided between the side wall of the separation chamber and the cyclone separator, and the air outlet has a third end near the top of the separation chamber and a fourth end away from the top of the separation chamber. The connecting plate protrudes from the edge of the fourth end of the air outlet and is connected to the baffle.

[0012] In some embodiments, the cyclone separator further includes a filter screen disposed between the side wall of the main body and the side wall of the separation chamber, and covering the plurality of air inlets.

[0013] In some embodiments, the cyclone separator further includes a dust collection cover, the cyclone separator assembly includes a dust collection bin, the dust outlet is disposed toward the dust collection cover, and the dust collection cover is located at the bottom of the separation chamber; the dust collection cover is rotatably connected to the separation chamber to switch between a closed state and an open state; when the dust collection cover is in the closed state, the dust collection cover is connected to the side of the dust collection bin away from the cyclone separator.

[0014] In another aspect, a vacuum cleaner provided in another embodiment of this utility model includes: a main housing; a cyclone separator as described in any of the above embodiments, the cyclone separator being connected to the main housing; a filter element disposed within the main housing and having a fluid inlet and a fluid outlet; and a fan disposed within the main housing and connected to the fluid outlet.

[0015] As can be seen from the above, the technical features of this utility model can have one or more of the following beneficial effects: The cyclone separator of this utility model, by opening air guides on the side wall of the main body, can reduce the radial dimension of the cyclone separator, which is conducive to the miniaturization of the cyclone separator. Moreover, multiple air guides can reduce wind resistance, allowing the air-dust fluid to enter the cyclone separator more evenly, thereby improving the air-dust separation efficiency.

[0016] The cyclone separator of this utility model can be miniaturized and have its gas-dust separation effect improved because it uses the aforementioned cyclone separator. Furthermore, by achieving two-stage cyclone separation through the separation chamber and the cyclone separation component, the gas-dust-fluid separation effect can be further guaranteed and the separation efficiency improved.

[0017] Because the vacuum cleaner of this invention adopts the aforementioned cyclone separation device, it can also achieve miniaturization and improve the air-dust separation effect, and can achieve multi-stage cyclone separation of air and dust. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of a cyclone separator provided in an embodiment of the present invention.

[0020] Figure 2 for Figure 1 A schematic diagram of the cyclone separator in the image.

[0021] Figure 3 for Figure 2 Top view.

[0022] Figure 4 for Figure 1 A schematic diagram of the dust collection bin.

[0023] Figure 5 This is a partial structural schematic diagram of a cyclone separator provided in an embodiment of the present invention.

[0024] Figure 6 for Figure 6 Another schematic diagram of the cyclone separator shown.

[0025] Figure 7 for Figure 5 Cross-sectional view of the cyclone separator in the middle;

[0026] Figure 8 This is a schematic diagram of the structure of the cyclone separator and filter screen of a cyclone separation device provided in an embodiment of the present utility model.

[0027] Figure 9 This is a schematic diagram of the air guide section of a cyclone separator provided in an embodiment of the present invention.

[0028] Figure 10 This is a partial structural schematic diagram of a cyclone separator provided in an embodiment of the present invention.

[0029] Figure 11 This is a schematic diagram of the air guide, guide plate, filter screen and dust collection bin of a cyclone separator provided in an embodiment of the present invention.

[0030] Figure 12 This is a schematic diagram of the air guide, filter, and dust collection bin of a cyclone separator provided in an embodiment of the present invention.

[0031] Figure 13 This is a schematic diagram of the guide plate and air guide section of a cyclone separator provided in an embodiment of the present invention.

[0032] Figure 14 This is a three-dimensional structural diagram of a vacuum cleaner provided for an embodiment of the present utility model.

[0033] Figure 15 for Figure 13 A partial cross-sectional view of the vacuum cleaner shown.

[0034] Figure label:

[0035] 1. Vacuum cleaner; 10. Main housing; 20. Cyclone separator; 30. Filter element; 40. Fan;

[0036] 210. Separation chamber; 211. Air guide section; 2111. Air inlet; 2112. Air outlet; 2113. Air guide surface; 2114. Baffle; 2115. Connecting plate; 2116. Inclined plate; 212. Air inlet housing; 2121. Air and dust inlet; 213. Air guide plate; 214. Air duct;

[0037] 220. Cyclone separator assembly; 221. Cyclone separator; 2211. Main body; 2212. Cyclone chamber; 2213. Air guide port; 2213a. Air guide surface; 2214. Air outlet; 2215. Dust outlet; 2216. Air guide blades; 2216a. First air guide blade; 2216b. Second air guide blade; 2217. Inner wall; 2218. Outer wall; 222. Dust collection bin;

[0038] 230. Filter screen; 240. Flow guide cover; 241. Spiral air duct; 242. Through hole; 250. Ash discharge cover;

[0039] B. Intersection; C. Tangential plane; α. Angle. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] See Figure 1-4 This utility model provides a cyclone separator assembly 220, which includes a cyclone separator 221. The cyclone separator 221 includes a main body 2211, and the main body 2211 has a cyclone cavity 2212 inside. The cyclone cavity 2212 extends to both ends to form a dust outlet end 2215 and an air outlet end 2214. It can be understood that both the dust outlet end 2215 and the air outlet end 2214 have through holes that communicate with the cyclone cavity 2212 of the main body 2211, so that the main body 2211 forms a hollow tube shape. A plurality of air guide ports 2213 are provided on the side wall of the main body 2211, which are spaced apart along the circumference of the cyclone cavity 2212 and are connected to the cyclone cavity 2212.

[0042] Specifically, the principle of a cyclone separator is mainly based on the effects of centrifugal force and inertia to separate solid particles from gases or liquids. The internal design of a cyclone separator creates a rotating airflow upon entry, subjecting the solid particles in the gas to centrifugal force. In this high-speed rotating airflow, the solid particles, due to their larger mass, experience a greater centrifugal force, causing them to be pushed towards the outer wall of the separator and eventually deposited at the bottom discharge port under gravity. The clean gas, due to its smaller mass, experiences a smaller centrifugal force and tends to move towards the center of the separator, ultimately exiting through the outlet.

[0043] In the aforementioned cyclone separator 221, the dust-laden airflow first enters the cyclone chamber 2212 of the main body 2211 through the air guide 2213. The dust-laden airflow rotates along the central axis of the cyclone separator 221, separating the dust and debris in the airflow. The dust and debris fall off after colliding with the side wall of the cyclone separator 221, thus completing the filtration of dust and debris in the airflow, improving the efficiency of dust separation, and enhancing the cleanliness of the separated airflow.

[0044] The cyclone separator 221 reduces its size and achieves miniaturization by opening air guide ports 2213 on the side wall of the main body 2211. Multiple air guide ports 2213 are provided to reduce wind resistance, improve separation efficiency, and allow airflow to enter the cyclone separator 221 more evenly.

[0045] See Figure 2 In some embodiments, the sidewall of the main body 2211 has an inner sidewall 2217 facing the cyclone cavity 2212 and an outer sidewall 2218 away from the cyclone cavity 2212; the air guide 2213 has an air guide surface 2213a located between the inner sidewall 2217 and the outer sidewall 2218 of the main body 2211, the air guide surface 2213a and the inner sidewall 2217 are connected to form an intersection B, and the tangential plane C of the inner sidewall 2217 at the intersection B forms an angle α with the air guide surface 2213a, the angle α being greater than or equal to 0° and less than or equal to 30°. Figure 3 In the diagram, B represents the intersection point B between the air guide surface 2213a and the inner wall 2217 of the main body 2211. The tangential surface C of the air guide surface 2213a and the inner wall 2217 of the main body 2211 passing through the intersection point B has an angle α. In the diagram, C represents the tangential surface between the inner wall 2217 and the aforementioned intersection point. The aforementioned angle is, for example, α. Figure 3 α in.

[0046] When there is only one air inlet 2213, the separation effect is best when the angle α between the air guide surface 2213a and the tangential plane C is 0°, ensuring that the dust-laden airflow enters the cyclone separator 221 and spirals along the side wall of the cyclone separator 221. However, when there are multiple air inlets 2213, if the angle α between the air guide surface 2213a and the tangential plane is 0°, it may cause the air entering from different air inlets 2213 to interfere with each other, affecting the cyclone effect and ultimately affecting the separation efficiency of the cyclone separator 221. To ensure the final separation efficiency of the cyclone separator 221, the angle α between the air guide surface 2213a and the tangential plane C is set to be greater than or equal to 0° and less than 30°. Preferably, the angle between the air guide surface 2213a and the tangential plane is 17.4°.

[0047] See Figure 2 and Figure 3In some embodiments, the sidewall of the main body 2211 is provided with a plurality of circumferentially spaced guide vanes 2216, which are alternately arranged with a plurality of air inlets 2213 in the circumferential direction. The plurality of guide vanes 2216 include a first guide vane 2216a and a second guide vane 2216b, wherein the arc length of the first guide vane 2216a in the circumferential direction is smaller than the arc length of the second guide vane 2216b in the circumferential direction. The dust-laden airflow first enters the cyclone chamber 2212 of the main body 2211 through the air inlet 2213. The dust-laden airflow is first guided by the first guide vane 2216a and rotates at high speed in the cyclone chamber 2212 to achieve air-dust separation, separating the dust. The separated dust collides with the second guide vane 2216b and falls and is collected due to gravity.

[0048] In some embodiments, the arc length of the second guide vane 2216b in the circumferential direction is half the circumferential length of the main body 2211, and / or, the number of first guide vanes 2216a is multiple. This achieves both reduced wind resistance and improved separation efficiency.

[0049] See Figure 1 and Figure 4 In some embodiments, the cyclone separator 220 further includes a dust collection chamber 222, which is connected to the dust outlet end 2215 of the main body 2211 to communicate with the cyclone chamber 2212. The dust collection chamber 222 is a conical dust collection chamber. The main body 2211 has a dust outlet end 2215 and an air outlet end 2214 opposite to the dust outlet end 2215. The opening size of the conical dust collection chamber gradually decreases along the direction from the air outlet end 2214 to the dust outlet end 2215, that is, the area of ​​the conical dust collection chamber gradually decreases along the direction from the air outlet end 2214 to the dust outlet end 2215. After the dust-laden airflow enters the cyclone chamber 2212 at a high tangential velocity through the air guide port 2213, the dust-laden airflow undergoes circular rotation. The dust-laden airflow generates a large centrifugal force during rotation. Since the inertia of dust particles is much greater than that of air, the dust particles with a density greater than that of air are thrown towards the inner wall of the second guide vane 2216b and fall into the dust collection bin 222 from the dust outlet 2215 due to gravity, thus achieving separation of dust particles from gas. Finally, the airflow is discharged from the bottom of the dust collection bin 222. The filtered airflow is discharged from the air outlet 2214 of the cyclone separator 221.

[0050] See Figures 5-13Another embodiment of the present invention provides a cyclone separator 20, which includes a separation chamber 210 and the aforementioned cyclone separator component 220. Cyclone separator 220 is disposed inside separation chamber 210, and air guide 2213 is connected to separation chamber 210. Separation chamber 210 includes air guide section 211, which is disposed on the side wall of separation chamber 210. Air guide section 211 has air inlet 2111 and air outlet 2112. Air outlet 2112 of air guide section 211 faces the interior of separation chamber 210. Air guide surface 2113 is provided near air outlet 2112 of air guide section 211. Air guide surface 2113 is connected to air outlet 2112. Air guide surface 2113 is inclined to the radial direction of separation chamber 210 so that dust-laden airflow enters separation chamber 210 from air outlet 2112 along the radial direction of inclined separation chamber 210, so that dust-laden airflow can rotate in separation chamber 210 and reduce turbulence.

[0051] Specifically, the cyclone separator 20 can be installed inside the cleaning equipment, which includes, but is not limited to, vacuum cleaners, mite removal equipment, floor cleaning equipment, etc. The cleaning equipment usually uses a motor to drive a fan to rotate, generating negative pressure, which draws dust, debris and other substances in the air into the cleaning equipment, and separates the dust, debris and other substances through the cyclone separator 221, and finally discharges the filtered airflow through the outlet of the cleaning equipment.

[0052] The aforementioned cyclone separator 20 provides two-stage cyclone separation: the separation chamber 210 performs the first-stage cyclone separation, and the cyclone separation assembly 220 performs the second-stage cyclone separation. In the separation chamber 210, denser dust or debris is separated; that is, denser airborne dust or debris is separated by the centrifugal force generated by the cyclone. Since multiple air guides 2213 are connected to the air outlet 2112 of the air guide section 211, the airborne dust after the first-stage cyclone separation continues into the second-stage cyclone separation. In the cyclone separation assembly 220, the airborne dust is cycloned again, and the heavier dust is thrown out by centrifugal force, achieving the second-stage cyclone separation. The dust-laden airflow after the second-stage cyclone separation flows out through the air outlet 2214 into the next process.

[0053] The separation chamber 210 provides the first-stage cyclone separation. Dust and debris enter the guide section 211 through the air inlet 2111, then proceeds to the air outlet 2112, and finally enters the separation chamber 210. Guided by the guide section 211, the dust and debris flow out from the air outlet 2112. The guide surface 2113 ensures that the dust and debris are blown out along its direction, optimizing the airflow distribution and flow characteristics. The guide section 211 is located within the separation chamber 210, where the dust and debris enter. After the dust-laden airflow enters the separation chamber 210 at a high tangential velocity, the dust and debris rotate. In the middle, the lighter dust and debris rotate at high speed. During the rotation, the dust and debris generate a large centrifugal force. Since the inertia of the dust and debris is greater than that of air, the dust and debris with a density greater than that of air are thrown out. The thrown-out dust and debris hit the inner wall of the separation chamber 210. The dust and debris that lose inertia fall along the inner wall of the separation chamber 210 under the downward force of gravity and are collected at the bottom of the separation chamber 210.

[0054] Cyclone separator assembly 220 provides a second stage of cyclone separation. After the dust-laden airflow enters the cyclone separator assembly 220, that is, after the dust-laden airflow enters the cyclone separator 221, that is, after the dust-laden airflow enters the main body 2211, the dust-laden airflow is guided by the guide vanes 2216, and the airflow rotates in a circular motion. During the rotation, the dust and debris generate a large centrifugal force. Since the inertia of the dust and debris is greater than that of air, the dust and debris with a density greater than that of air are thrown out. The thrown-out dust and debris hits the inner wall of the second guide vane 2216b. The dust and debris that loses inertia is subjected to downward gravity and falls along the inner wall of the second guide vane 2216b, and is discharged from the dust outlet 2215 and collected in the dust collection bin 222. The cleaner air and dust fluid flows out through the air outlet 2214. The inclination direction of the air guide 2213 is the same as the rotation direction of the air-dust fluid rotating in the separation chamber 210, ensuring that the air-dust fluid entering the cyclone separation assembly 220 rotates in the same direction as the air-dust fluid in the separation chamber 210. The second guide vane 2216b of the cyclone separator 221 is positioned, for example, towards the air outlet 2112 of the guide section 211. This prevents the dust-laden airflow from directly flowing into the cyclone separator 221 through the air guide 2213 after exiting the outlet 2112. Instead, it ensures that the dust-laden airflow rotates within the separation chamber 210 after exiting the outlet 2112 to achieve the first stage of cyclone separation before flowing into the cyclone separation assembly 220 for the second stage of cyclone separation. This ensures effective separation and improves the cleanliness of the air ultimately exiting the cyclone separation device 20.

[0055] See Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13In some embodiments, a baffle 2114 is provided between the side wall of the separation chamber 210 and the cyclone separator 221; the baffle 2114 is used to block the airflow from flowing back to the air guide port 2213 after passing through the interior of the separation chamber 210, and the baffle 2114 is connected to the inner side wall of the separation chamber 210 and the cyclone separator 221 respectively along the radial direction parallel to the separation chamber 210. The baffle 2114 is positioned near the air outlet 2112. The inner wall 2217 of the separation chamber 210 has a first end at the air outlet 2112 that forms an obtuse angle with the extension direction of the air guide surface 2113 and a second end that forms an acute angle. The first end and the second end are located at opposite ends of the air outlet 2112. The dust-laden airflow is blown out from the air outlet 2112 of the air guide section 211 and enters the separation chamber 210. The rotation direction of the dust-laden airflow is the same as that of the first end. The baffle 2114 is positioned at the second end to control the direction of the dust-laden airflow out of the air outlet 2112, preventing the dust-laden airflow from flowing out of the air outlet 2112 in any direction, causing turbulence, affecting the rotation of the dust-laden airflow in the separation chamber 210, and thus affecting the separation rate and efficiency of the cyclone separator 20. Furthermore, after the dust-laden airflow rotates once in the separation chamber 210, some of the airflow may rotate back to the second end. The baffle 2114 is connected to the second end and the cyclone separator 221 along the radial direction of the separation chamber 210 to prevent the dust and air that have rotated once in the separation chamber 210 from re-entering the air outlet 2112 of the air guide section 211.

[0056] Furthermore, the baffle 2114 extends along the axial direction of the cyclone separator 221, and the positions of the outlet 2112 at the opposite ends of the axial direction of the cyclone separator 221 do not exceed the positions of the baffle 2114 at the opposite ends of the axial direction of the cyclone separator 221. This ensures that the height of the baffle 2114 along the axial direction of the cyclone separator 221 is greater than or equal to the height of the outlet 2112, thereby further ensuring that the dust-laden airflow that rotates once in the separation chamber 210 will not re-enter the outlet 2112 of the air guide section 211.

[0057] See Figure 9 , Figure 10 , Figure 11 and Figure 12 In some embodiments, a connecting plate 2115 is provided between the side wall of the separation chamber 210 and the cyclone separator 221. The air outlet 2112 has a third end near the top of the separation chamber 210 and a fourth end away from the top of the separation chamber 210. The connecting plate 2115 protrudes from the edge of the fourth end of the air outlet 2112 and is connected to the baffle 2114. The connecting plate 2115 is located at the edge of the fourth end of the air outlet 2112, that is, the connecting plate 2115 can connect the air guide 211 and the cyclone separator 221, fix the position between the air guide 211 and the cyclone separator 221, and cooperate with the baffle 2114 to control the outflow direction of the dust-laden airflow, and also prevent the dust-laden airflow from entering the air outlet 2112 of the air guide 211.

[0058] See Figure 8 and Figure 11 In some embodiments, the cyclone separator 20 further includes a filter screen 230, which is disposed between the side wall of the main body 2211 and the side wall of the separation chamber 210, and covers multiple air inlets 2213. Before the dust-laden airflow that has completed the first-stage cyclone separation enters the cyclone separator 221 for the second-stage cyclone separation, it will be filtered again by the filter screen 230. Specifically, the filter screen 230 is provided with a large number of micropores. The dust and debris that have undergone the first-stage cyclone separation are filtered again by the filter screen 230, keeping large dust particles outside the cyclone separator 221, that is, outside the cyclone separation assembly 220, allowing only small dust particles to enter the cyclone separation assembly 220.

[0059] See Figure 9 In some embodiments, an inclined plate 2116 is provided at one end of the air guide section 211 near the air inlet 2111. After the garbage or dust that has undergone the first-stage cyclone separation in the separation chamber 210 hits the side wall of the air guide section 211, it can slide down along the inclined plate 2116 and be collected at the bottom of the separation chamber 210.

[0060] See Figure 11 and Figure 13 In some embodiments, the cyclone separator 20 further includes a guide cover 240, which is located at the top of the separation chamber 210 and connected to the air outlet 2214 of the cyclone chamber 2212. One end of the guide cover 240 facing the interior of the separation chamber 210 extends spirally downwards near the center of the separation chamber 210 to form a spiral air duct 241. After the dust-laden airflow flows out from the air outlet 2112, it spirals downwards along the spiral direction of the guide cover 240, preventing some of the dust-laden gas from failing to descend after one rotation, thus affecting the dust separation effect. The rotation separates denser dust particles; that is, denser dust or debris is pushed towards the inner wall of the separation chamber 210 by centrifugal force or impacts the guide cover 240, and falls to the bottom of the separation chamber 210 under the influence of gravity, thus being separated. The guide cover 240 may also have a through hole 242, which communicates with the air outlet 2214 of the cyclone separator 221.

[0061] See Figure 5 , Figure 6 and Figure 10In some embodiments, the cyclone separator 20 further includes a dust discharge cover 250, the cyclone separator assembly 220 includes a dust collection chamber 222, the dust discharge cover 250 is disposed opposite to the guide cover 240, the dust outlet end 2215 is disposed toward the dust discharge cover 250, the dust discharge cover 250 is located at the bottom of the separation chamber 210, the dust collection chamber 222 and the dust outlet end 2215 of the main body 2211 are connected to the cyclone cavity 2212; the dust discharge cover 250 is rotatably connected to the separation chamber 210 to switch between a closed state and an open state; when the dust discharge cover 250 is in the closed state, the dust discharge cover 250 is connected to the side of the dust collection chamber 222 away from the cyclone separator 221.

[0062] Specifically, when the dust collection cover 250 is closed, it seals the separation chamber 210 and the dust collection bin 222. The separation chamber 210 collects the dust or debris separated by the first-stage cyclone, and the dust collection bin 222 collects the dust or debris separated by the second-stage cyclone. When the dust collection cover 250 is open, the dust and debris in the separation chamber 210 and the dust collection bin 222 can be emptied. Furthermore, when the dust collection cover 250 is closed, the dust and debris that has undergone the first-stage cyclone separation but not the second-stage cyclone separation will not directly enter the conical dust collection bin. Instead, it will enter through the air inlet 2213 of the cyclone separator 221 of the cyclone separation assembly 220, undergo cyclone separation in the cyclone chamber 2212, and then be blown out from the outlet 2214 of the cyclone separator 221.

[0063] See Figure 7 In some embodiments, the cyclone separator 20 further includes an inlet housing 212 and a guide plate 213 located within the inlet housing 212. The inlet housing 212 includes a dust inlet 2121, and the inlet housing 212 and the guide plate 213 together form an air duct 214 between the dust inlet 2121 and the air inlet 2111 of the guide section 211. The dust-laden fluid enters the inlet housing 212 from the dust inlet 2121 and flows through the air duct 214 formed by the inlet housing 212 and the guide plate 213 to the air inlet 2111 of the guide section 211, and then flows out from the air outlet 2112 of the guide section 211, completing the subsequent first-stage cyclone separation and second-stage cyclone separation. The guide plate 213 is inclined to facilitate smoother flow of the dust-laden airflow. The air guide plate 213 is located, for example, inside the dust collection cover 250. When the dust collection cover 250 is open, the air guide plate 213 will open relative to the dust collection bin 222, making it easier to empty the dust particles or debris in the separation chamber 210 and the dust collection bin 222.

[0064] See Figure 14 and Figure 15Another embodiment of this utility model provides a vacuum cleaner 1, including a main housing 10, the aforementioned cyclone separator 20, a filter element 30, and a fan 40. The cyclone separator 20 is connected to the main housing 10; the filter element 30 is disposed inside the main housing 10 and has a fluid inlet and a fluid outlet; the main body 2211 has a dust outlet end 2215 and an air outlet end 2214 opposite to the dust outlet end 2215; the fluid inlet is connected to the air outlet end 2214 of the main body 2211; the fan 40 is disposed inside the main housing 10 and is connected to the fluid outlet.

[0065] Vacuum cleaner 1 also includes, for example, a motor electrically connected to fan 40, which drives fan 40 to operate. When fan 40 is operating, its movement generates negative pressure, drawing external airflow into vacuum cleaner 1. The airflow passes through cyclone separator 20, which separates and collects dust or debris from the airflow. The separated airflow then flows through outlet 2214 and into the fluid inlet (not shown) of filter element 30 for final filtration, reducing dust entering fan 40 and preventing blockage. The clean air after this final filtration flows out from the fluid outlet (not shown) of filter element 30. For example, the main housing 10 has an outlet connected to the inner cavity of the main housing 10. The clean air flowing out of the fluid outlet is ultimately discharged from vacuum cleaner 1 through the outlet on the main housing 10.

[0066] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0067] Furthermore, it is understood that the foregoing embodiments are merely illustrative examples of this utility model. Provided that the technical features do not conflict, the structure is not contradictory, and the purpose of this utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cyclone separator assembly (220), characterized in that, The device includes a cyclone separator (221), which includes a main body (2211). The main body (2211) has a cyclone cavity (2212) inside. The cyclone cavity (2212) extends to both ends to form a dust outlet (2215) and an air outlet (2214). The side wall of the main body (2211) is provided with a plurality of air guides (2213) spaced apart along the circumference of the cyclone cavity (2212). The plurality of air guides (2213) are connected to the cyclone cavity (2212).

2. The cyclone separator assembly (220) as described in claim 1, characterized in that, The sidewall of the main body (2211) has an inner sidewall (2217) facing the cyclone cavity (2212) and an outer sidewall (2218) away from the cyclone cavity (2212); the air guide (2213) has an air guide surface (2213a) located between the inner sidewall (2217) and the outer sidewall (2218) of the main body (2211), the air guide surface (2213a) and the inner sidewall (2217) are connected to form an intersection (B), the inner sidewall (2217) forms an angle (α) with the air guide surface (2213a) at the tangential surface (C) of the intersection (B), the angle (α) is greater than or equal to 0° and less than or equal to 30°.

3. The cyclone separator assembly (220) as described in claim 1, characterized in that, The side wall of the main body (2211) is provided with a plurality of air guide blades (2216) spaced apart along the circumference. The plurality of air guide blades (2216) and the plurality of air guides (2213) are arranged alternately along the circumference. The plurality of air guide blades (2216) include a first air guide blade (2216a) and a second air guide blade (2216b). The arc length of the first air guide blade (2216a) in the circumference direction is smaller than the arc length of the second air guide blade (2216b) in the circumference direction.

4. The cyclone separator assembly (220) as described in claim 3, characterized in that, The second guide vane (2216b) has an arc length in the circumferential direction that is half the circumferential length of the main body (2211), and / or, the number of the first guide vanes (2216a) is provided to be multiple.

5. The cyclone separator assembly (220) as described in any one of claims 1 to 4, characterized in that, The cyclone separator assembly (220) also includes a dust collection bin (222), which is connected to the dust outlet end (2215) of the main body (2211) to communicate with the cyclone chamber (2212).

6. A cyclone separator (20), characterized in that, include: The cyclone separation assembly (220) and separation chamber (210) as described in any one of claims 1-5, wherein the cyclone separation assembly (220) is disposed in the separation chamber (210), and the air guide (2213) is connected to the separation chamber (210); the separation chamber (210) includes an air guide section (211), the air guide section (211) is disposed on the side wall of the separation chamber (210), the air guide section (211) has an air inlet (2111) and an air outlet (2112), the air outlet (2112) faces the interior of the separation chamber (210), the air guide section (211) is provided with an air guide surface (2113) near the air outlet (2112), the air guide surface (2113) is connected to the air outlet (2112), and the air guide surface (2113) is inclined to the radial direction of the separation chamber (210).

7. The cyclone separator (20) as described in claim 6, characterized in that, A baffle (2114) is provided between the side wall of the separation chamber (210) and the cyclone separator (221). The baffle (2114) is used to block the airflow from flowing back to the air guide port (2213) after passing through the interior of the separation chamber (210). The baffle (2114) is connected to the inner side wall of the separation chamber (210) and the cyclone separator (221) in a radial direction parallel to the separation chamber (210). And / or, the baffle (2114) extends along the axial direction of the cyclone separator (221), and the air outlet (2112) is located at the opposite ends of the axial direction of the cyclone separator (221) without exceeding the opposite ends of the baffle (2114) in the axial direction of the cyclone separator (221).

8. The cyclone separator (20) as described in claim 7, characterized in that, A connecting plate (2115) is provided between the side wall of the separation chamber (210) and the cyclone separator (221). The air outlet (2112) has a third end near the top of the separation chamber (210) and a fourth end away from the top of the separation chamber (210). The connecting plate (2115) protrudes from the edge of the fourth end of the air outlet (2112) and is connected to the baffle (2114).

9. The cyclone separator (20) as described in claim 6, characterized in that, The cyclone separator (20) also includes a filter screen (230), which is disposed between the side wall of the main body (2211) and the side wall of the separation chamber (210) and covers the plurality of air inlets (2213).

10. The cyclone separator (20) as described in claim 9, characterized in that, The cyclone separator (20) further includes a dust collection cover (250), and the cyclone separator assembly (220) includes a dust collection chamber (222). The dust outlet end (2215) is disposed facing the dust collection cover (250). The dust collection cover (250) is rotatably connected to the separation chamber (210) to switch between a closed state and an open state. When the dust collection cover (250) is in the closed state, the dust collection cover (250) is connected to the side of the dust collection chamber (222) away from the cyclone separator (221).

11. A vacuum cleaner (1), characterized in that, include: Main housing (10) ； The cyclone separator (20) as described in any one of claims 6-10 is connected to the main housing (10). A filter element (30) is disposed inside the main housing (10) and has a fluid inlet and a fluid outlet, wherein the fluid inlet is connected to the air outlet (2214) of the main body (2211); A fan (40) is disposed inside the main housing (10) and connected to the fluid outlet.

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