Cyclone separation device and cleaning equipment

Abstract

The invention provides a cyclone separation device and cleaning equipment, and relates to the technical field of cleaning electric appliances. The cyclone separation device is provided with an air inlet, an air outlet and a dust outlet. The cyclone separation device comprises a separation cylinder and a dust cup. A cavity is formed in the separation cylinder and communicates with the air inlet, the air outlet and the dust outlet, and the air inlet is formed in the separation cylinder. The cavity wall of the cavity comprises an annular first wall, the first wall is used for guiding airflow in the cavity to spirally flow to force dust and impurities in the airflow, and the dust outlet is formed in the first wall. A dust collection cavity is formed in the dust cup, and airflow can sequentially pass through the air inlet, the cavity and the dust outlet to enter the dust collection cavity. The side wall of the dust collection cavity is a second wall, the second wall surrounds the outer side of the first wall, the distance between the second wall and the first wall is a target distance, and the target distance located on the side, facing the dust outlet, of the cavity is larger than the target distance located on the side, deviating from the dust outlet, of the cavity. According to the embodiment of the invention, the problem of low separation efficiency can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning appliances, and in particular to a cyclone separation device and a cleaning device. Background Art

[0002] In cleaning devices, such as vacuum cleaners, floor scrubbers, and sweeping robots, dust is separated by setting up a separator. The airflow before separation enters the separator and rotates. Solids or other types of dust and debris with large inertial centrifugal force are thrown out of the separator and then enter the dust collecting part; the clean gas after separation is discharged from the separator, thereby realizing dust collection and dust removal of the cleaning device.

[0003] In the related art, the dust takes a long time to be separated by the separator and the separation efficiency is low. Summary of the invention

[0004] In view of this, the embodiments of the present application hope to provide a cyclone separation device and a cleaning device to solve the problem of low separation efficiency in the related art.

[0005] In order to achieve the above-mentioned object, an embodiment of the present application provides a cyclone separation device on one hand, wherein the cyclone separation device is provided with an air inlet, an air outlet and a dust outlet, and the cyclone separation device comprises:

[0006] A separation cylinder is formed with a cavity, the cavity is connected with the air inlet, the air outlet and the dust outlet, the air inlet is formed in the separation cylinder, the cavity wall includes a first wall in an annular shape, the first wall is used to guide the airflow in the cavity to flow in a spiral shape to separate the dust carried in the airflow, and the dust outlet is formed in the first wall;

[0007] The dust cup is formed with a dust collecting cavity, and the air flow can enter the dust collecting cavity through the air inlet, the cavity and the dust outlet in sequence. The side wall of the dust collecting cavity is the second wall, and the second wall surrounds the outer side of the first wall. The distance between the second wall and the first wall is the target distance, and the target distance on the side of the cavity facing the dust outlet is greater than the target distance on the side of the cavity away from the dust outlet.

[0008] The cyclone separation device of the embodiment of the present application is provided with a separation cylinder and a dust cup, and the separation cylinder is arranged in the dust cup, and the target distance located on the side of the cavity facing the dust outlet is greater than the target distance located on the side of the cavity away from the dust outlet. The larger target distance located on the side of the cavity facing the dust outlet can increase the distance that the dust and debris are thrown from the separation cylinder through the dust outlet to the side wall of the dust cup, and can reduce the attraction of the swirling airflow caused by the separation cylinder to the dust and debris, thereby reducing the situation where the dust and debris flow back to the inside of the cavity. Furthermore, the dust and debris enter the dust collecting cavity from the cavity. Since the target distance located on the side of the cavity facing the dust outlet is greater than the target distance located on the side of the cavity away from the dust outlet, the volume of the dust collecting cavity is larger, and the airflow enters the larger dust collecting cavity from the dust outlet, resulting in a decrease in speed. In a relatively short time, the dust and debris will directly fall to the bottom of the dust cup and stop moving. Therefore, the embodiment of the present application can solve the problem of low separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic structural diagram of a cyclone separation device according to an embodiment of the present application;

[0010] Figure 2 for Figure 1 A cross-sectional view at position A;

[0011] Figure 3 This is a schematic diagram of the assembly of a separation cylinder body and a baffle according to an embodiment of the present application;

[0012] Figure 4 This is a schematic diagram of the assembly of a separation cylinder body and a dust cup according to an embodiment of the present application;

[0013] Figure 5 This is a schematic diagram of the assembly of a separation cartridge body and a filter cartridge according to an embodiment of the present application;

[0014] Figure 6 This is a schematic diagram of the structure of a dust cup according to an embodiment of the present application.

[0015] Description of reference numerals:

[0016] Separation cylinder 1; cavity 1a; air inlet 1b; air outlet 1c; dust outlet 1d; target endpoint 1e; up and down direction 1f; separation cylinder body 10; first connecting line 10a; second connecting line 10b; target angle 10c; target line 10d; target distance 10e; air inlet member 11; first wall 12; dust cup 2; dust collecting chamber 2a; retaining rib 2b; second wall 20; baffle 3; filter cylinder 4; filter hole 4a; upper cover 5; handle 6. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed descriptions in the specific implementation methods should be understood as explanations of the present application and should not be regarded as improper limitations on the present application.

[0018] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The terms "first\second" involved in the embodiments of the present application are only used to distinguish similar objects and do not represent a specific order for the objects. It can be understood that "first\second" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0019] As part of the creative concept of the present application, before describing the embodiments of the present application, it is necessary to analyze the reasons for the low separation efficiency in the related technology and obtain the technical solution of the embodiments of the present application through reasonable analysis.

[0020] In the related art, after the dust and debris are separated in the separator and thrown into the dust cup, the dust will continue to rotate in the dust cup due to centrifugal force and will not fall directly to the bottom of the dust cup. Due to the principle of the cyclone separator, an upward rotating inward airflow will be formed in the middle of the separator. The rotating dust in the dust cup may be attracted by the inward rotating airflow and return to the separator, reducing the efficiency of dust separation.

[0021] The present application embodiment provides a cleaning device, see Figures 1 to 6 The cleaning device comprises a device body and a cyclone separation device. The device body can generate suction to the surface to be cleaned. The cyclone separation device is arranged on the device body.

[0022] In one embodiment, the cleaning device may be a sweeping robot or a handheld sweeping machine.

[0023] It should be noted that the surface to be cleaned can be a flat ground or a surface with certain undulations; it can be a carpet surface or a wooden floor, tile, marble, cement, etc. Dust and debris include dust, particles, hair, paper pieces, debris, water droplets or other solid and / or liquid debris with a density greater than that of air.

[0024] The main body of the equipment refers to the main body of the cleaning equipment, which is used to install or accommodate other components such as the cyclone separation device to complete the dust removal work on the surface to be cleaned. The main body of the equipment can be a long cylinder or other shapes.

[0025] In one embodiment, the cyclone separation device is detachably installed in the device body. When the cyclone separation device needs to be cleaned, the cyclone separation device can be taken out from the device body, which is convenient for operation and improves cleaning efficiency.

[0026] The present application also provides a cyclone separation device, see Figures 1 to 6 , the cyclone separation device is provided with an air inlet 1b, an air outlet 1c and a dust outlet. The cyclone separation device comprises a separation cylinder 1 and a dust cup 2. The separation cylinder 1 is formed with a cavity 1a, and the cavity 1a is connected with the air inlet 1b, the air outlet 1c and the dust outlet. The air inlet 1b is formed in the separation cylinder 1. The cavity wall of the cavity comprises a first wall 12 in an annular shape, and the first wall 12 is used to guide the airflow in the cavity to flow in a spiral shape to separate the dust and debris carried in the airflow, and the dust outlet is formed in the first wall 12. The dust cup 2 is formed with a dust collecting cavity 2a, and the airflow can enter the dust collecting cavity through the air inlet, the cavity and the dust outlet in sequence, and the side wall of the dust collecting cavity is a second wall 20, and the second wall 20 surrounds the outer side of the first wall 12, and the distance between the second wall 20 and the first wall 12 is the target distance, and the target distance 10e on the side of the cavity facing the dust outlet is greater than the target distance 10e on the side of the cavity away from the dust outlet.

[0027] In this embodiment, the cyclone separation device is provided with a separation cylinder and a dust cup, and the separation cylinder is arranged in the dust cup, and the target distance on the side of the cavity facing the dust outlet is greater than the target distance on the side of the cavity away from the dust outlet. The larger target distance on the side of the cavity facing the dust outlet can increase the distance that the dust and debris are thrown from the separation cylinder through the dust outlet to the side wall of the dust cup, and can reduce the attraction of the swirling airflow caused by the separation cylinder to the dust and debris, thereby reducing the situation where the dust and debris flow back to the inside of the cavity. Furthermore, the dust and debris enter the dust collecting cavity from the cavity. Since the target distance on the side of the cavity facing the dust outlet is greater than the target distance on the side of the cavity away from the dust outlet, the volume of the dust collecting cavity is larger, and the airflow enters the larger dust collecting cavity from the dust outlet, resulting in a decrease in speed. In a relatively short time, the dust and debris will directly fall to the bottom of the dust cup and stop moving. Therefore, the embodiment of the present application can solve the problem of low separation efficiency.

[0028] In one embodiment, the air inlet 1b is connected to the device body.

[0029] Exemplarily, dust and debris from the outside enter the device body through the air inlet 1b, the cavity 1a, and the dust outlet 1d in sequence.

[0030] In one embodiment, please refer to Figure 1 The cyclone separation device also includes an upper cover 5, which is arranged on the top of the separation cylinder 1 and the dust cup 2, and the air outlet 1c is formed on the top of the upper cover 5.

[0031] In one embodiment, please refer to Figure 1 The cyclone separation device further comprises a handle 6, which is arranged on the top surface of the upper cover 5. The handle 6 can facilitate the user to lift the cyclone separation device from the device body.

[0032] In one embodiment, the separation cylinder 1 includes a separation cylinder body 10 and an air inlet member 11 connected to each other, the air inlet 1b is formed in the air inlet member 11, the cavity 1a and the dust outlet are both formed in the separation cylinder body 10, and the air inlet member 11 passes through the side wall of the separation cylinder body 10.

[0033] In one embodiment, the separation cylinder body 10 and the air inlet member 11 are integrally formed.

[0034] It is understandable that the embodiment of the present application is not limited to the integral molding of the separation cylinder body 10 and the air inlet member 11. In one embodiment, the separation cylinder body 10 and the air inlet member 11 are manufactured separately, and then assembled together after the separation cylinder body 10 and the air inlet member 11 are manufactured separately.

[0035] In one embodiment, please refer to Figure 2 The first wall 12 and the second wall 20 abut against the side of the cavity away from the dust outlet.

[0036] In this embodiment, the first wall 12 and the second wall 20 abut against each other, which can make the eccentric distance between the dust cup 2 and the separation cylinder 1 as large as possible, and the suction force of the swirling airflow generated inside the separation cylinder 1 on dust and debris is as small as possible, further reducing the situation where dust and debris are re-sucked into the separation cylinder.

[0037] In one embodiment, please refer to Figure 2 , the maximum target distance 10e at the dust outlet 1d ranges from 15mm to 30mm.

[0038] In this embodiment, the target distance 10e ranges from 15 mm to 30 mm. The suction force of the swirling airflow caused by the first wall 12 on the dust and debris at the side wall of the dust cup is in a relatively suitable range, which can alleviate the situation where the dust and debris return to the separation cylinder 1. Furthermore, when the size of the dust cup 2 is constant, the size of the target distance 10e will affect the volume of the separation cylinder 1. When the target distance 10e is large, the volume of the separation cylinder 1 is small. When the target distance 10e is appropriate, it can alleviate the situation where large dust and debris get stuck in the process of entering the separation cylinder 1.

[0039] Exemplarily, the target distance 10e is 15 mm, 20 mm, 25 mm or 30 mm.

[0040] In one embodiment, the axial direction of the first wall 12 is substantially parallel to the axial direction of the second wall 20 .

[0041] In one embodiment, please refer to Figure 2 The shape of the outer surface of the first wall 12 and / or the shape of the inner surface of the second wall 20 are circular.

[0042] In this embodiment, the first wall 12 and / or the second wall 20 are in the shape of a circular ring, the separation cylinder 1 and the dust cup 2 are simple to manufacture, and during the rotation of dust and debris in the cavity 1a and the dust collecting cavity 2a, the dust and debris rotate along the arc-shaped side surface, making the airflow flow smoother and the airflow and dust and debris separation efficiency higher. Furthermore, the circular ring does not form a linear chamfer, which can reduce the situation where larger dust and debris are stuck with the first wall 12 or the second wall 20.

[0043] It is understood that the embodiment of the present application is not limited to the outer surface shape of the first wall 12 and / or the inner surface shape of the second wall 20 being circular. In one embodiment, the outer surface shape of the first wall 12 and / or the inner surface shape of the second wall 20 is circular or polygonal.

[0044] In one embodiment, please refer to Figure 4 , along the axial projection of the first wall 12, among the two end points of the projection area of ​​the dust outlet along the circumferential direction of the first wall 12, the line connecting the end point at one end and the center of the projection area of ​​the first wall 12 is the first line, and the line connecting the end point at the other end and the center of the first wall 12 is the second line, and the angle formed by the first line and the second line toward the axis of the dust collecting chamber is in the range of 0 to 180 degrees.

[0045] In this embodiment, the angle formed by the first connecting line 10a and the second connecting line 10b toward the axis of the dust collecting chamber 2a ranges from 0 to 180 degrees, which can ensure that when dust and debris are thrown from the dust outlet into the dust cup 2, more dust and debris move at a slower speed, so that more dust and debris can fall directly into the dust cup 2 in a shorter time. The embodiment of the present application can further reduce the situation where dust and debris are re-sucked into the cavity 1a.

[0046] It should be noted that the angle formed by the first connecting line 10a and the second connecting line 10b toward the axis of the dust collecting chamber 2a ranges from 0 to 180 degrees, which means that the angle is greater than 0 degree and less than or equal to 180 degrees.

[0047] In one embodiment, the angle formed by the first connecting line 10a and the second connecting line 10b toward the axis of the dust collecting chamber 2a is 60 degrees, 80 degrees, 100 degrees or 120 degrees.

[0048] In one embodiment, the angle formed by the first connecting line 10a and the second connecting line 10b toward the axis of the dust collecting chamber 2a is a target angle 10c, and the target angle 10c is shown in the figure.

[0049] In one embodiment, please refer to Figure 3 The cyclone separation device further comprises a baffle 3, and two ends of the baffle 3 are respectively connected to the first wall 12 and the second wall 20. Baffles 3 are provided at both ends of the dust outlet 1d along the circumference of the first wall 12.

[0050] In this embodiment, baffles 3 are provided at both ends of the dust outlet 1d along the circumference of the first wall 12. When dust and debris enter the dust collecting chamber 2a from the cavity 1a, the dust and debris will continue to rotate along the second wall 20. During the rotation of the dust and debris, the baffles 3 can prevent the dust and debris from rotating, so that the dust and debris that touch the baffles 3 directly fall into the bottom of the dust cup 2, speeding up the process of collecting dust and debris. Furthermore, the baffles 3 can prevent dust and debris from entering the narrow area between the first wall 12 and the second wall 20, thereby reducing the situation where larger dust and debris are stuck between the outer surface of the first wall 12 and the inner surface of the second wall 20.

[0051] In one embodiment, please refer to Figure 3 The baffle plate 3 extends along the axial direction of the first wall 12 to the top surface of the dust collecting chamber.

[0052] In this embodiment, the baffle 3 extends axially along the first wall 12 to the top surface of the dust collecting chamber, increasing the axial blocking area of ​​the baffle 3 on the first wall 12. The baffle 3 can further block dust and debris entering the dust collecting chamber 2a, thereby increasing the efficiency of dust and debris collection.

[0053] In one embodiment, please refer to Figure 4 The two end points of the dust outlet along the circumference of the first wall 12 are target end points 1e, and each end baffle 3 is located on the side of the corresponding target end point 1e along the circumference of the first wall 12 away from the dust outlet.

[0054] In this embodiment, each end baffle 3 is located on the side of the corresponding target end point 1e away from the dust outlet along the circumferential direction of the first wall 12. The embodiment of the present application can make the dust and debris entering the dust collecting chamber 2a be blocked by the baffle 3 to a large extent, reducing the time for the dust and debris to rotate in the dust collecting chamber 2a, thereby reducing the situation where the dust and debris are re-sucked into the cavity 1a by the swirling airflow in the cavity 1a.

[0055] In one embodiment, please refer to Figure 3 The surface of each end baffle 3 along the circumferential direction of the first wall 12 facing the dust outlet coincides with the corresponding target end point 1e.

[0056] In this embodiment, the surface of each end baffle 3 along the circumferential direction of the first wall 12 facing the dust outlet coincides with the corresponding target end point 1e, and the first wall 12 and the baffle 3 are connected at the end point of the dust outlet, which makes the processing of the cyclone separation device more convenient while maintaining a good blocking effect of the baffle 3. Furthermore, one end of the baffle 3 coincides with the target end point 1e of the dust outlet, and the width of the baffle 3 is large, which can prevent dust and debris with a large volume from entering the side of the baffle 3 away from the dust outlet, thereby alleviating the dust and debris from being stuck between the first wall 12 and the second wall 20 along the width direction of the baffle 3, thereby slowing down the collection efficiency.

[0057] In one embodiment, please refer to Figure 5 The cyclone separation device further includes a filter cartridge 4 , which is disposed in the cavity 1 a , and a plurality of filter holes 4 a are formed on the side wall of the filter cartridge 4 .

[0058] In this embodiment, a filter cartridge 4 is provided in the cavity 1a of the separation cartridge 1, and a plurality of filter holes 4a are formed on the side wall of the filter cartridge 4. During the cyclone separation process, a swirling airflow is formed in the cavity 1a of the separation cartridge 1. The outer airflow formed in the cavity 1a needs to pass through the filter cartridge 4 in the process of flowing to the swirling airflow. The filter holes 4a formed on the side wall of the filter cartridge 4 can block the dust and debris that are not separated in the airflow, thereby achieving a better effect of cyclone separation and preventing dust and debris from returning to the external environment with the swirling airflow.

[0059] In one embodiment, along the up-down direction 1f, the dust outlet is located below the air inlet 1b.

[0060] In this embodiment, the dust outlet is located below the air inlet 1b, and the centrifugal force generated by the separation cylinder 1 does not need to overcome the gravity of dust and debris to allow the dust and debris to enter the dust collecting chamber 2a from the dust outlet. When the main body of the device sucks in a lot of dust and debris, the dust and debris can be thrown out from the dust outlet to the dust collecting chamber 2a due to their own weight, which can improve the separation efficiency of the cyclone separation device. Furthermore, the dust outlet is located below the air inlet 1b to avoid dust and debris being retained at the bottom of the separation cylinder 1 after the suction force decreases, requiring the user to disassemble the dust cup 2 and take out the separation cylinder 1 for cleaning, which affects the user's experience.

[0061] In one embodiment, please refer to Figure 6 The dust cup 2 is formed with a plurality of blocking ribs 2b, which are formed in the dust collecting chamber 2a. The plurality of blocking ribs 2b are arranged at intervals along the circumference of the second wall 20, and the blocking ribs 2b extend along the central axis of the dust collecting chamber 2a. The blocking ribs 2b can block dust and debris entering the dust cup 2, allowing the dust and debris to quickly fall to the bottom of the dust cup 2, thereby accelerating the collection efficiency.

[0062] It should also be noted that the terms "include", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of further restrictions, the various embodiments / implementations provided in this application that are defined by the sentence "include..." can be combined with each other without causing contradictions.

[0063] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cyclone separation device, characterized in that: The cyclone separation device is provided with an air inlet, an air outlet and a dust outlet, and the cyclone separation device comprises: A separation cylinder is formed with a cavity, the cavity is connected with the air inlet, the air outlet and the dust outlet, the air inlet is formed in the separation cylinder, the cavity wall includes a first wall in an annular shape, the first wall is used to guide the airflow in the cavity to flow in a spiral shape to separate dust and debris carried in the airflow, and the dust outlet is formed in the first wall; The dust cup is formed with a dust collecting cavity, and the air flow can enter the dust collecting cavity through the air inlet, the cavity and the dust outlet in sequence, the side wall of the dust collecting cavity is the second wall, the second wall surrounds the outer side of the first wall, the distance between the second wall and the first wall is the target distance, and the target distance on the side of the cavity facing the dust outlet is greater than the target distance on the side of the cavity away from the dust outlet.

2. The cyclone separation device according to claim 1, characterized in that: The first wall and the second wall abut against a side of the cavity away from the dust outlet.

3. The cyclone separation device according to claim 2, characterized in that: The maximum target distance at the dust outlet is in the range of 15 mm to 30 mm.

4. The cyclone separation device according to any one of claims 1 to 3, characterized in that: The shape of the outer surface of the first wall and / or the shape of the inner surface of the second wall is annular.

5. The cyclone separation device according to claim 4, characterized in that: Along the axial projection of the first wall, among the two end points of the projection area of ​​the dust outlet along the circumferential direction of the first wall, the line connecting the end point at one end and the center of the projection area of ​​the first wall is the first line, and the line connecting the end point at the other end and the center of the first wall is the second line, and the angle formed by the first line and the second line toward the axis of the dust collecting chamber is in the range of 0 to 180 degrees.

6. The cyclone separation device according to any one of claims 1 to 3, characterized in that: The cyclone separation device further includes a baffle, two ends of which are respectively connected to the first wall and the second wall, and the baffle is disposed at both ends of the dust outlet along the circumference of the first wall.

7. The cyclone separation device according to claim 6, characterized in that: The baffle extends along the axial direction of the first wall to the top surface of the dust collecting chamber.

8. The cyclone separation device according to claim 6, characterized in that: Both end points of the dust outlet along the circumference of the first wall are target end points, and the baffle at each end is located on a side of the target end point along the circumference of the first wall away from the dust outlet.

9. The cyclone separation device according to claim 6, characterized in that: A surface of the baffle at each end along the circumference of the first wall facing the dust outlet coincides with the corresponding target endpoint.

10. The cyclone separation device according to any one of claims 1 to 3, characterized in that: The cyclone separation device further comprises a filter cartridge, which is disposed in the cavity and has a plurality of filter holes formed on a side wall thereof.

11. The cyclone separation device according to any one of claims 1 to 3, characterized in that: Along the up and down direction, the dust outlet is located below the air inlet.

12. A cleaning device, characterized in that: include: A device body, the device body being capable of generating suction to a surface to be cleaned; The cyclone separation device according to any one of claims 1 to 11 is arranged on the equipment body, and the air inlet is connected to the equipment body.

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