Dust collecting device, dust collector and cleaning system

Abstract

The utility model provides a dust collection device, a dust collector and a cleaning system, the dust collection device comprises: a dust cup, which is provided with a dust collection port, a mounting port and a dust discharge port, the dust collection port is used for communicating with a dust collection channel of the dust collector, and the mounting port is used for communicating with an airflow driving device of the dust collector; the dust-gas separator is arranged in the dust cup and divides an inner cavity of the dust cup into a dust collection cavity and an exhaust cavity, the mounting opening is located in one side of the exhaust cavity, and the dust exhaust opening is located in one side of the dust collection cavity; and the filtering device is arranged in the exhaust cavity, and when the cleaning base station discharges dust to the dust cup through the dust discharging opening, the filtering device blocks at least part of the circulation area of the exhaust cavity. According to the dust collecting device, the airflow path in the dust collecting device is optimized, and noise generated when dust in the dust cup is cleaned can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dust collectors, in particular to a dust collecting device, a dust collector and a cleaning system. BACKGROUND

[0002] In the field of home cleaning, dust collectors have become an indispensable tool. With the advancement of technology and changes in consumer demand, the design and functionality of dust collectors are constantly evolving.

[0003] Traditional dust collectors require users to manually empty the dust cup regularly, which is both time-consuming and can cause secondary pollution of dust. In recent years, the combination of dust collectors and cleaning bases has become a major trend in the market. The cleaning base, as a supporting device for the dust collector, can suck the dust and garbage in the dust cup of the dust collector into the dust bag or dust collecting box inside the cleaning base after the dust collector completes the dusting task.

[0004] During the dusting process of the dust collector, air flows into the dust collector from the air inlet of the dusting component, and the filtered gas flows out from the air outlet of the dust collector motor; during the dust discharging process, the dust collector is connected with the cleaning base, and the cleaning base provides strong suction to form an air flow through the air outlet of the dust collector motor, sucking the dust and garbage in the dust cup into the cleaning base.

[0005] Since the impeller of the dust collector is usually designed for the running direction of the air flow during the dusting process, the air flow during the dust discharging process causes the dust collector motor to reverse. When the motor is reversed, the flow field characteristics of the impeller change, resulting in a large noise, which affects the user's experience. SUMMARY

[0006] The embodiments of the present application provide a dust collecting device, a dust collector and a cleaning system, which optimize the air flow path in the dust collecting device during dust discharging to reduce the noise when cleaning the dust in the dust cup.

[0007] In a first aspect, the embodiments of the present application provide a dust collecting device for a dust collector, comprising: a dust cup having a dusting port, a mounting port and a dust discharging port, the dusting port being used to communicate with a dusting channel of the dust collector, the mounting port being used to communicate with an air flow driving device of the dust collector; a dust-gas separator arranged in the dust cup and separating an inner cavity of the dust cup into a dust collecting cavity and an exhaust cavity, the mounting port being located on one side of the exhaust cavity, and the dust discharging port being located on one side of the dust collecting cavity; a filtering device arranged in the exhaust cavity, and blocking at least part of the flow-through area of the exhaust cavity when the cleaning base discharges dust for the dust cup through the dust discharging port.

[0008] The dust collecting device of the application, when the dust cup is arranged to discharge dust by the cleaning base station, the filter device blocks at least part of the flow-through area of the exhaust cavity, and the dust discharge airflow mainly enters the dust collecting cavity from the dust suction port of the dust collector, and the dust and sundries in the dust collecting cavity are discharged into the cleaning base station. At this time, only a small amount of dust discharge airflow passes through the airflow driving device from the exhaust cavity into the dust collecting cavity, thereby reducing the ventilation area of the exhaust cavity during dust discharge treatment, reducing the airflow flowing in the opposite direction through the airflow driving device, and thereby reducing the noise caused by the reverse rotation of the impeller of the airflow driving device.

[0009] In some embodiments, the dust-air separator has a flow-through channel communicating the dust collecting cavity and the exhaust cavity, and the filter device has a blocking portion that blocks at least part of the flow-through channel when the dust cup is arranged to discharge dust by the dust discharge port of the cleaning base station, and the blocking portion is separated from the flow-through channel when the dust collector is arranged to suck dust.

[0010] In this way, in the dust suction mode, the suction force generated by the airflow driving device causes dust and air to enter the dust collecting cavity through the dust suction port, pass through the flow-through channel of the dust-air separator into the exhaust cavity, and finally discharge clean air through the filter device. During this process, the blocking portion of the filter device remains in a separated state from the flow-through channel, ensuring that the dust collecting airflow is unobstructed. When the cleaning base station discharges dust, the blocking portion blocks the flow-through channel, reducing the ventilation area of the dust discharge airflow and reducing the airflow flowing in the opposite direction through the airflow driving device, to avoid the reverse rotation of the airflow driving device and reduce noise, so that the dust-air separator and the filter device can work effectively in cooperation, achieving the effects of efficient dust-air separation and noise control.

[0011] According to some embodiments of the application, the blocking portion is configured to move under the action of air pressure to block the flow-through channel or separate from the flow-through channel.

[0012] The automatic movement of the blocking portion by air pressure ensures that the dust collecting device has good dust suction effect when sucking dust and low noise when discharging dust, thereby improving the user's satisfaction.

[0013] According to some embodiments of the application, the filter device comprises a fixed frame in the form of a hollow cylinder, the fixed frame being connected to the dust cup, and a filter element covering the fixed frame, at least part of the filter element being air-tight to form the blocking portion.

[0014] Through the cooperation of the fixed frame and the filter element, the filter device can work in different states in different working modes, ensuring the efficient operation and noise control of the dust collecting device.

[0015] According to some embodiments of the present application, the filter member comprises a body member and a blocking member, the body member is a piece of air-permeable material, the body member comprises a first region and a second region, the first region is located on the side of the fixing frame and is spaced apart from the inner wall of the exhaust cavity, the second region is located on the side of the fixing frame away from the mounting port, the blocking member is a piece of air-impermeable material, the blocking member is attached to the second region and together forms the blocking portion.

[0016] In this way, in the dust suction operation, the air flow enters the dust collection cavity through the dust suction port and enters the exhaust cavity through the first region of the body member. The air-permeable body member ensures smooth air flow while filtering out dust and impurities. At this time, the blocking member is separated from the flow passage and does not affect the normal flow of the air flow. When the dust collector is connected to the cleaning base station for dust discharge, the change of air pressure in the filter device causes the blocking member to block the flow passage together with the second region to reduce noise.

[0017] In some embodiments, the filter member comprises a first region and a second region, the first region is located on the side of the fixing frame and is spaced apart from the inner wall of the exhaust cavity, the first region is a piece of air-permeable material, the second region is located at the end of the first region away from the mounting port, the second region is a piece of air-impermeable material, and the second region forms the blocking portion.

[0018] In this way, in the normal dust suction operation, the air flow enters the dust collection cavity through the dust suction port and enters the exhaust cavity through the first region of the body member. The air-permeable first region ensures smooth air flow while filtering out dust and impurities. At this time, the second region is separated from the flow passage and does not affect the normal flow of the air flow. When the dust collector is connected to the cleaning base station for dust discharge, the change of air pressure in the filter device causes the air-impermeable second region to block the flow passage to reduce noise.

[0019] According to some embodiments of the present application, the end of the first region away from the mounting port exceeds the end of the fixing frame away from the mounting port, the portion of the first region that exceeds the fixing frame forms a deformation portion, and the deformation portion is configured to deform under the action of air pressure to cause the blocking portion to block the flow passage or separate from the flow passage.

[0020] In some embodiments, when the cleaning base station discharges dust through the dust discharge port Dust cup, the deformation portion deforms and drives the second region to at least partially block the flow passage, and when the dust collector is in use, the deformation portion deforms and drives the second region to move between the flow passage and the fixing frame.

[0021] When dust is discharged, the pressure change in the dust collecting cavity causes the deformation part to deform. The deformation of the deformation part drives the second region to move, so as to block the flow passage, thereby reducing the noise in the process of discharging dust. When the dust collector is in operation, the suction force causes the pressure condition to change, so as to cause the deformation part to deform again. At this time, the deformation part drives the second region to move to the position between the flow passage and the fixed frame away from the one end of the mounting port, so as to ensure that the airflow can smoothly pass through the first region into the exhaust cavity, thereby realizing efficient dust collection and filtration.

[0022] According to some embodiments of the present application, the filter element is filter cotton.

[0023] On the one hand, the filter cotton has good air permeability and filtration performance, and can effectively capture dust and impurities. On the other hand, the softness of the filter cotton makes it easy to be designed as a deformation part, which can dynamically adjust the position under the action of air pressure.

[0024] According to some embodiments of the present application, the flow passage is a plurality of and arranged in a ring array, the projection of the blocking part on the reference surface has a first diameter, the projection of the plurality of flow passages in the reference surface collectively determines an excircle with a second diameter, and the ratio of the first diameter to the second diameter is greater than or equal to 0.4.

[0025] In this way, the blocking part can effectively cover the flow passage when discharging dust, so as to reduce the noise generated when the motor of the airflow driving device is reversed by the airflow driven by the discharging airflow.

[0026] According to some embodiments of the present application, the dust cup comprises: a cup body, the dust suction port and the dust discharge port are arranged on the cup body, and the cup body has an open end at one end in the axial direction; a mounting bracket extends into the cup body from the open end, the mounting bracket defines the exhaust cavity and the mounting port communicating with the exhaust cavity, the filter device is arranged on the inner side of the mounting bracket, the dust-air separator is arranged at the bottom of the mounting bracket, and the bottom wall of the mounting bracket has a connecting port corresponding to the flow passage, and the connecting port extends into the flow passage.

[0027] In this way, by optimizing the layout of each structure in the dust cup, the effect of separating dust and air by the dust cup is improved, and the dust cup is also convenient for the cleaning base station to clean and maintain.

[0028] In a second aspect, the embodiments of the present application provide a dust collector, comprising:

[0029] a machine body provided with a dust suction passage; an airflow driving device arranged in the machine body, the airflow driving device having an air inlet and an air outlet; the dust collecting device described above, the mounting port of the dust cup of the dust collecting device being in communication with the airflow driving device, the dust suction port being connected with the dust suction passage, and the air inlet being opposite to and in communication with the mounting port.

[0030] The dust collector of the application, due to the use of the dust collecting device, optimizes the dust collecting airflow path, reduces the noise during dust discharging, and is beneficial to improve the user satisfaction, when discharging the dust in the dust cup through the cleaning base station.

[0031] In a third aspect, the embodiments of the application further provide a cleaning system, comprising: the dust collector described above; and a cleaning base station, which is at least configured to be connected with the dust discharging port of the dust cup of the dust collector to discharge the dust in the dust cup through the dust discharging port.

[0032] The cleaning system of the application, due to the use of the dust collector described above, can clean the surface to be cleaned during dust collection, and can also discharge the dust in the dust cup through the connection with the cleaning base station, so that the user does not have to manually disassemble the dust cup for cleaning. At the same time of discharging the dust, the filter device of the dust collecting device blocks part of the flow passage of the exhaust cavity, optimizes the airflow path, is beneficial to reduce the noise during dust discharging, and improves the user's use comfort. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

[0034] Figure 1 A state diagram of the dust collecting device of the embodiments of the application during dust discharging;

[0035] Figure 2 A state diagram of the dust collecting device of the embodiments of the application during dust collection;

[0036] Figure 3 A structural schematic diagram of the filter device of one embodiment of the application;

[0037] Figure 4 A structural schematic diagram of the filter device of another embodiment of the application;

[0038] Figure 5 A distribution schematic diagram of the flow passage of the embodiments of the application.

[0039] REFERENCE NUMERALS:

[0040] 100, dust collecting device;

[0041] 110, dust cup; 111, dust suction port; 112, mounting port; 113, dust discharging port; 114, dust collecting cavity; 115, exhaust cavity; 116, cup body; 117, mounting bracket; 1171, connecting port;

[0042] 120, dust-air separator; 121, flow passage;

[0043] 130, filter device; 131, blocking part; 132, fixing frame; 133, filter element; 133a, blocking element; 1331, first region; 1331a, deformation part; 1332, second region;

[0044] 210, airflow driving device.

[0045] The specific embodiments of the present application have been shown and described in the above-described drawings, and will be described in more detail hereinafter. These drawings and detailed description are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] Exemplary embodiments will be described in detail herein with reference to the drawings. When the description below refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims.

[0047] The prior art dust collector cooperates with the cleaning base station to perform dust discharge treatment on the dust cup of the dust collector through the cleaning base station, thereby reducing the frequency of manual cleaning of the dust cup by the user.

[0048] During the dust collection process, the dust collection airflow flows into the dust collection component from the air inlet, and the filtered gas flows out of the air outlet of the motor. During the dust discharge process, the dust collector is connected to the cleaning base station, and the cleaning base station provides strong suction to form a dust discharge airflow. The dust discharge airflow enters the dust collector through the air outlet of the motor of the dust collector, enters the dust cup after passing through the motor of the dust collector, and sucks the dust and garbage in the dust cup into the cleaning base station. In this process, the flow direction of the dust discharge airflow is opposite to that of the dust collection airflow, so that the dust discharge airflow reverses the motor of the main machine of the dust collector. Since the impeller of the dust collector is usually designed for the dust collection process, when the motor is reversed, the flow field characteristics of the impeller change, which may cause a large noise and affect the user's experience.

[0049] Therefore, the embodiments of the present application provide a dust collection device, a dust collector, and a cleaning system. By optimizing the airflow path in the dust collection device during dust discharge, the noise of the cleaning base station when cleaning the dust in the dust cup is reduced, and the user's satisfaction is improved.

[0050] Reference Figures 1 to 5 In a first aspect, the embodiments of the present application provide a dust collection device 100, which can be used in a dust collector. Exemplarily, the dust collector can include a stand-type dust collector, a handheld dust collector, a canister-type dust collector, or a robot dust collector, etc.

[0051] The dust collecting device 100 can include a dust cup 110, a dust-air separator 120, and a filtering device 130.

[0052] The dust cup 110 can have a dust suction port 111, a mounting port 112, and a dust discharge port 113. For example, the dust suction port 111 can be arranged on the side wall of the dust cup 110, the mounting port 112 can be located at the top end of the dust cup 110, and the dust discharge port 113 can be located at the bottom wall of the dust cup 110. Of course, the present application is not limited thereto, and the specific positions of the dust suction port 111, the mounting port 112, and the dust discharge port 113 on the dust cup 110 can be reasonably selected according to actual needs.

[0053] The dust suction port 111 is used to connect the dust suction channel of the dust collector, so that dust and garbage can smoothly enter the dust cup 110. The mounting port 112 is in communication with the air flow driving device 210 of the dust collector, ensuring that the suction force can be effectively transmitted to the inside of the dust cup 110, so that the clean gas filtered by the filtering device 130 is discharged from the mounting port 112. When performing the dust discharge process, the dust discharge port 113 is in communication with the cleaning base station, and the dust and garbage in the dust cup 110 are discharged into the cleaning base station. The air flow driving device 210 can include a motor.

[0054] The dust-air separator 120 is arranged in the dust cup 110 and divides the inner cavity of the dust cup 110 into a dust collecting cavity 114 and an air discharging cavity 115. The dust collecting cavity 114 is used to collect dust and garbage, and the air discharging cavity 115 is used to discharge filtered air. The mounting port 112 is usually located on one side of the air discharging cavity 115 to facilitate connection with the air flow driving device 210 of the dust collector, and the dust discharge port 113 is located on one side of the dust collecting cavity 114 to facilitate connection with the cleaning base station. When performing the dust discharge process, the dust discharge device in the cleaning base station generates negative pressure suction in the dust cup 110, forming a dust discharge air flow, so that the dust and garbage in the dust collecting cavity 114 are discharged from the dust discharge port 113 into the cleaning base station. Of course, the dust suction motor of the dust suction part of the dust collector can also be operated to generate a dust discharge air flow flowing from the dust suction channel into the dust collecting cavity 114, so that the dust and garbage in the dust collecting cavity 114 are discharged from the dust discharge port 113 into the cleaning base station.

[0055] The filter device 130 is arranged in the exhaust cavity 115. When the dust cup 110 is discharged by the dust discharge port 113 in the cleaning base station, the filter device 130 blocks at least part of the flow-through area (such as the flow-through channel 121 described below) of the exhaust cavity 115. For example, the filter device 130 can have an electrically driven structure (such as an electric telescopic rod, etc.). When the dust is discharged, the filter device 130 is driven by the electrically driven structure to block part of the flow-through area of the exhaust cavity 115, so as to reduce the ventilation area of the exhaust cavity 115 during the dust discharge process, thereby reducing the noise. Alternatively, the filter device 130 can also have a gas pressure driven structure (such as the blocking part 131 described below). The gas pressure driven structure moves with the change of gas pressure. When the dust is discharged, the filter device 130 is directly driven by the dust discharge gas flow to block part of the flow-through area of the exhaust cavity 115. At this time, the gas flow through the air flow driving device 210 of the dust collector in the reverse direction is reduced, the impeller of the air flow driving device 210 is reversed, and the noise caused by the reversal of the impeller of the air flow driving device 210 is reduced.

[0056] Optionally, the filter device 130 can block all flow-through areas of the exhaust cavity 115. At this time, the dust discharge gas flow enters the dust cup 110 from the suction port of the dust collector through the suction channel, and enters the dust collection cavity 114, so that the dust and garbage and other sundries are discharged into the cleaning base station. Therefore, the dust discharge gas flow does not flow through the air flow driving device, thereby avoiding the noise caused by the reversal of the impeller of the air flow driving device 210.

[0057] It can be understood that when the dust collector is used for dust collection, the air flow driving device 210 of the dust collector applies suction, the dust and garbage and other sundries enter the dust cup 110 from the suction port 111 through the suction channel, the dust collection gas flow passes through the dust-gas separator 120 and the filter device 130, the dust and garbage and other sundries are collected in the dust collection cavity 114, and the clean air is discharged from the air outlet of the air flow driving device 210 of the dust collector.

[0058] The dust collection device 100 of the present application blocks at least part of the flow-through area of the exhaust cavity 115 by the filter device 130 when the dust cup 110 is discharged in the cleaning base station. The dust discharge gas flow mainly enters the dust collection cavity 114 from the suction port 111 of the dust collector through the suction channel, so that the dust and other sundries in the dust collection cavity 114 are discharged into the cleaning base station. At this time, only a small amount of dust discharge gas flow enters the dust collection cavity 114 from the exhaust cavity 115 through the air flow driving device 210. In this way, the ventilation area of the exhaust cavity 115 during the dust discharge process is reduced, the air flow in the reverse direction through the air flow driving device 210 is reduced, and the noise caused by the reversal of the impeller of the air flow driving device 210 is reduced.

[0059] Reference Figure 1 , Figure 2 and Figure 5In some embodiments, the dust-air separator 120 has a flow passage 121 connecting the dust collection chamber 114 and the exhaust chamber 115, and the filtering device 130 has a blocking part 131. When the dust cup 110 is being discharged by the cleaning base through the dust discharge port 113, the blocking part 131 blocks at least part of the flow passage 121. When the air flow driving device 210 is in operation, the blocking part 131 is separated from the flow passage 121. In other words, when the dust cup 110 is being discharged by the cleaning base, the flow passage 121 between the dust collection chamber 114 and the exhaust chamber 115 is blocked by the blocking part 131 of the filtering device 130.

[0060] When the cleaner is in operation, the suction force generated by the air flow driving device 210 causes dust and air to enter the dust collection chamber 114 through the suction port 111. Under the action of the dust-air separator 120, the dust is separated, and the air flow enters the exhaust chamber 115 through the flow passage 121 of the dust-air separator 120, and finally is discharged through the filtering device 130. In this process, the blocking part 131 of the filtering device 130 is kept separated from the flow passage 121, ensuring that the dust collection air flow is unobstructed. When the cleaning base is discharging dust, the blocking part 131 blocks the flow passage 121, reducing the ventilation area of the dust discharge air flow to reduce noise, so that the dust-air separator 120 and the filtering device 130 can work effectively in cooperation, achieving the effect of efficient dust-air separation and noise control.

[0061] According to some embodiments of the present application, the blocking part 131 is configured to move under the action of air pressure to block or separate from the flow passage 121. For example, when the cleaner is in operation, the dusting air flow flows from the flow passage 121 to the blocking part 131, and the air pressure on the side of the blocking part 131 facing the flow passage 121 is large, causing the blocking part 131 to separate from the flow passage 121. When the dust is being discharged, the dust discharge air flow flows from the blocking part 131 to the flow passage 121, and the air pressure on the side of the blocking part 131 away from the flow passage 121 is large, pushing the blocking part 131 to block at least part of the flow passage 121. The automatic movement of the blocking part 131 is achieved by air pressure, which makes the dust collection device 100 have good dusting effect when in operation, reduces the air flow flowing in the opposite direction of the air flow driving device 210 when discharging dust, reduces noise, and thus improves the user's satisfaction.

[0062] Reference Figure 3 and Figure 4 According to some embodiments of the present application, the filtering device 130 can include a fixing frame 132 and a filtering piece 133.

[0063] The fixed frame 132 is hollow and connected to the dust cup 110, and the filter 133 covers the fixed frame 132. The hollow structure of the fixed frame 132 allows the airflow to pass smoothly under the cover of the filter 133, while ensuring that the filter 133 can effectively cover all areas that need to be filtered. At least part of the filter 133 is air-tight to form a blocking part 131, for example, the blocking part 131 can be a part of the end surface of the filter 133 facing the dust-air separator 120. To improve the improvement effect on the ventilation area of the flow-through channel 121 during the dust removal process, thereby achieving the effect of reducing noise. Through the cooperation of the fixed frame 132 and the filter 133, the filter device 130 can work in different states under different working modes, ensuring the efficient operation and noise control of the dust collecting device 100.

[0064] Optionally, the fixed frame 132 can have a limiting piece that can protrude radially inward along the fixed frame 132. Since the movement of the blocking part 131 in different working states can be regarded as axial movement along the fixed frame 132, the limiting piece can be located on the movement stroke of the blocking part 131, which can limit the movement of the blocking part 131 and prevent the filter 133 from being deformed too much, thereby improving the reliability of the movement of the blocking part 131. Alternatively, the lower end of the fixed frame 132 can have a support ring that supports the filter 133. At the same time, the support ring and the blocking part 131 of the filter 133 are arranged axially along the fixed frame 132. During the dust collection work, the blocking part 131 moves towards the support ring under the action of the dust collection airflow and abuts against the support ring. In this way, the support ring can also limit the movement of the blocking part 131 and prevent the filter 133 from being deformed too much, thereby improving the reliability of the movement of the blocking part 131.

[0065] It can be understood that the blocking part 131 moves to block the flow-through channel 121 or separates from the flow-through channel 121 under the action of air pressure. The movement mode can be that the fixed frame 132 as a whole moves towards or away from the flow-through channel 121 under the action of air pressure, or the filter 133 can have a certain elasticity, and the filter 133 deforms under the action of air pressure, so that the blocking part 131 moves towards or away from the flow-through channel 121.

[0066] Reference Figure 3According to some embodiments of the present application, the filter piece 133 can include a body piece and a blocking piece 133a, the body piece being a piece of air-permeable material, the body piece including a first region 1331 and a second region 1332, the first region 1331 being located on the side of the fixing frame 132 and spaced apart from the inner wall of the exhaust cavity 115, the second region 1332 being located at the end of the fixing frame 132 away from the mounting port 112, the blocking piece 133a being a piece of air-impermeable material, the blocking piece 133a being attached to the second region 1332 and together forming the blocking part 131. Exemplarily, the blocking piece 133a can be a plastic plate, a rubber plate, or a film, etc.

[0067] It can be understood that at this time, the blocking area of the blocking part 131 to the overflow passage 121 is actually the area of the blocking piece 133a, and the area of the blocking piece 133a can be fully coincided with the second region. Of course, the area of the blocking piece 133a can also be partially coincided with the second region.

[0068] In this way, in the dust collection operation, the dust collection airflow enters the dust collection cavity 114 through the dust collection port 111, and enters the exhaust cavity 115 through the first region 1331 of the body piece. The air-permeable body piece ensures smooth airflow while filtering out dust and impurities. At this time, the airflow driving device 210 is suctioned, a negative pressure is formed on the side of the air-impermeable second region 1332 away from the overflow passage 121, so that the second region 1332 moves away from the overflow passage 121, the blocking part 131 is separated from the overflow passage 121, and does not affect the normal flow of the airflow. When the dust is discharged in the cleaning base station, the pressure on the side of the blocking part 131 away from the overflow passage 121 is large, so that the blocking part 131 moves towards the overflow passage 121, the blocking piece together with the second region 1332 blocks the overflow passage 121, reduces the reverse airflow of the dust discharge airflow through the airflow driving device 210, so as to reduce the noise. At this time, most of the dust discharge airflow enters the dust collection cavity from the dust collection passage, only a small part of the dust discharge airflow reverses through the air outlet of the airflow driving device 210 into the dust cup 110, and the unblocked part 131 of the overflow passage 121 divides into the dust collection cavity 114, and the dust in the dust collection cavity 114 is discharged into the cleaning base station.

[0069] Reference Figure 4 In yet some embodiments of the present application, the filter piece 133 can include a first region 1331 and a second region 1332, the first region 1331 being located on the side of the fixing frame 132 and spaced apart from the inner wall of the exhaust cavity 115, the first region 1331 being a piece of air-permeable material, the second region 1332 being located at the end of the first region 1331 away from the mounting port 112, the second region 1332 being a piece of air-impermeable material, and the second region 1332 forming the blocking part 131. The second region can be perpendicular to the first region.

[0070] When the dust is sucked, the airflow driving device 210 is in suction, and a negative pressure is formed on the side of the second area 1332 away from the through-flow channel 121, so that the second area 1332 moves away from the through-flow channel 121, and the blocking part 131 is separated from the through-flow channel 121.

[0071] When the dust is discharged in the cleaning base station, the pressure on the side of the second area 1332 away from the through-flow channel 121 is large, so that the second area 1332 moves toward the through-flow channel 121, and the blocking part 131 blocks the through-flow channel 121 together with the second area 1332, so as to reduce the reverse flow of the dust discharge airflow through the airflow driving device 210, so as to reduce the noise. At this time, most of the dust discharge airflow enters the dust collection chamber from the dust suction channel, only a small part of the dust discharge airflow reverses through the airflow driving device 210 from the air outlet of the airflow driving device 210 into the dust cup 110, and then enters the dust collection chamber 114 through the unblocked part 131 of the through-flow channel 121, and then the dust in the dust collection chamber 114 is discharged into the cleaning base station.

[0072] According to some embodiments of the present application, the end of the first area 1331 away from the mounting port 112 is beyond the end of the fixed frame 132 away from the mounting port 112, and the part of the first area 1331 beyond the fixed frame 132 away from the mounting port 112 forms a deformation part 1331a, which is configured to be deformed under the action of air pressure to block or separate the through-flow channel 121. For example, the body part can be a flexible part, and when the air pressures on the two sides of the fixed frame 132 in the axial direction of the fixed frame 132 are different, the deformation part 1331a deforms under the action of air pressure, so that the blocking part 131 moves to block or separate the through-flow channel 121. Alternatively, the first area 1331 can be provided with a wave-shaped texture extending in the axial direction of the fixed frame 132 at the position corresponding to the deformation part 1331a, and when the air pressures on the two sides of the fixed frame 132 in the axial direction of the fixed frame 132 are different, the deformation part 1331a can deform under the action of air pressure, so that the blocking part 131 moves to block or separate the through-flow channel 121.

[0073] When the dust is discharged in the cleaning base, the pressure change in the dust collecting cavity 114 causes the deformation part 1331a to deform. The deformation of the deformation part 1331a drives the second area 1332 to move, so as to block the flow passage 121, for example, the second area 1332 can be in contact with the flow passage 121, so as to reduce the noise in the dust discharging process. When the air flow driving device 210 is used for dust collection, the suction force causes the pressure condition to change, so as to cause the deformation part 1331a to deform again. At this time, the deformation part 1331a drives the second area 1332 to move to the position between the flow passage 121 and the fixed frame 132, that is, to the position between the flow passage 121 and the end of the fixed frame 132 away from the mounting port 112, that is, the second area 1332 is separated from the flow passage 121, so as to ensure that the air flow can smoothly pass through the first area 1331 and be discharged from the air flow driving device 210 through the mounting port 112, so as to realize efficient dust collection and filtration.

[0074] In this way, through the dynamic adjustment of the deformation part 1331a, the intelligent response of the filter device 130 in different working modes is realized. The design of the deformation part 1331a automatically adjusts the position of the second area 1332 by using the pressure change, without the need for complex mechanical or electronic control, which is beneficial to improve the reliability and efficiency of the dust discharging process of the dust collecting device 100, and at the same time, simplifies the structure design, which is beneficial to reduce the equipment cost.

[0075] According to some embodiments of the present application, the filter 133 can be filter cotton. On the one hand, the filter cotton has good air permeability and filtration performance, and can effectively capture dust and impurities, on the other hand, the softness of the filter cotton makes it easy to be designed into the deformation part 1331a, which can dynamically adjust the position under the action of air pressure. In addition, the filter cotton is an economical and practical material, which is suitable for large-scale production and use, and is beneficial to save equipment cost.

[0076] Reference Figure 1 and Figure 2 According to some embodiments of the present application, the flow passage 121 gradually decreases in the flow area in the direction along the axial direction of the dust cup 110 and from the exhaust cavity 115 to the dust collecting cavity 114. In other words, the flow passage 121 can be a conical or trumpet-shaped structure.

[0077] When discharging dust, the dust discharging air flow flows from the exhaust cavity 115 to the dust collecting cavity 114, and since the flow passage 121 gradually decreases in the flow area in the direction from the exhaust cavity 115 to the dust collecting cavity 114, the ventilation area decreases, the flow rate of the dust discharging air flow increases, and it is easier to discharge the dust and impurities in the dust collecting cavity 114 after entering the dust collecting cavity 114, which is beneficial to improve the cleaning effect of the dust cup 110. When collecting dust, the dust collecting air flow gradually slows down through the flow passage 121, so that the dust particles are more easily separated and remain in the dust collecting cavity 114, and the clean air enters the exhaust cavity 115 through the filter 133, so as to improve the filtration effect.

[0078] According to some embodiments of the present application, the plurality of flow passages 121 are arranged in a circular array, which is advantageous for uniform distribution of airflow and reduction of local airflow resistance, thereby improving the overall airflow efficiency of the flow passages 121. The circular array design of the flow passages 121 also allows more uniform distribution of airflow over the filter 133, thereby improving the filtration efficiency and dust-air separation effect.

[0079] The blocking portion 131 has a first diameter in the projection on a reference plane, and the circumscribed circle of the projections of the plurality of flow passages 121 on the reference plane has a second diameter, the ratio of the first diameter to the second diameter is greater than or equal to 0.4, wherein the reference plane can be a plane perpendicular to the axis of the dust cup 110. Exemplarily, the ratio can be 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 or 0.95. Of course, the ratio of the first diameter to the second diameter can also be other values, which are not limited in the present application. In this way, the blocking portion 131 can effectively cover the flow passages 121 when discharging dust, so as to reduce the noise generated when the motor of the airflow driving device 210 is reversed by the dust discharge airflow.

[0080] It should be noted that the ratio of the first diameter to the second diameter can also be equal to or greater than 1, at this time, the dust discharge airflow enters the dust cup 110 from the suction port of the dust cleaner through the suction passage, enters the dust collection chamber 114, and discharges dust, garbage and other sundries into the cleaning base station.

[0081] According to some embodiments of the present application, the dust cup 110 can include a cup body 116 and a mounting bracket 117.

[0082] The cup body 116 is the main structural part of the dust cup 110, and the cup body 116 is provided with a suction port 111 and a dust discharge port 113. The cup body 116 has an open end in the axial direction, which is convenient for assembling the mounting bracket 117 and other components. The mounting bracket 117 extends into the cup body 116 from the open end, and the mounting bracket 117 defines an exhaust chamber 115 and a mounting port 112 communicating with the exhaust chamber. The filter device 130 is arranged on the inner side of the mounting bracket 117, and the dust-air separator 120 is arranged on the outer side of the mounting bracket 117 and at the bottom of the mounting bracket 117, which is convenient for dust separation and collection. The bottom wall of the mounting bracket 117 has a connecting port 1171 corresponding to the flow passage 121, the connecting port 1171 extends into the flow passage 121, and the airflow can smoothly enter the exhaust chamber 115 from the dust collection chamber 114.

[0083] Therefore, during assembly, the dust-gas separator 120 is mounted outside the mounting bracket 117, and the filtering device 130 is mounted inside the mounting bracket 117, and then the mounting bracket 117 is mounted to the dust cup 110, so that the assembly is convenient. Meanwhile, the air flow needs to flow through the dust-gas separator 120 and the filtering device 130. By optimizing the layout of the structures in the dust cup 110, the dust cup 110 can improve the effect of separating dust and air, and the cleaning base can clean and maintain the dust cup 110 conveniently.

[0084] In a second aspect, the embodiments of the present application provide a dust collector, which can include a machine body, an air flow driving device 210, and the dust collecting device 100.

[0085] The machine body is provided with a dust suction passage, the air flow driving device 210 is arranged in the machine body, the air flow driving device 210 has an air inlet and an air outlet, the mounting port 112 of the dust cup 110 of the dust collecting device 100 is connected to the machine body, the dust suction passage is connected to the dust suction port 111, and the air inlet is opposite to the mounting port 112 and in communication with the mounting port 112.

[0086] The dust collector of the present application uses the dust collecting device 100, so that when the dust cup 110 is treated by the cleaning base, the filtering device 130 blocks part of the fluid area of the air outlet cavity 115, optimizes the dust collecting air flow path, reduces the noise during dust discharge, and improves the user satisfaction.

[0087] In a third aspect, the embodiments of the present application also provide a cleaning system, which can include the dust collector and the cleaning base, and the cleaning base is at least configured to be connected to the dust discharge port 113 of the dust cup 110 of the dust collector to discharge dust from the dust cup 110 through the dust discharge port 113.

[0088] The cleaning system of the present application uses the dust collector, which can clean the surface to be cleaned during normal dust suction, and can also treat the dust cup 110 by the cleaning base, so that the user does not need to manually disassemble the dust cup 110 for cleaning. Meanwhile, the filtering device 130 of the dust collecting device 100 blocks the flow area of the air outlet cavity 115, optimizes the air flow path, reduces the noise during dust discharge, and improves the user comfort.

[0089] It should be understood that many variations can be made in the embodiments described and shown which should be considered within the scope of the present application as defined by the appended claims.

Claims

1. A dust collecting device (100) for a vacuum cleaner, characterized by, The dust cup (110) has a dust suction port (111), a mounting port (112) and a dust discharge port (113), the dust suction port (111) is used for communicating with a dust suction channel of the dust collector, and the mounting port (112) is used for communicating with an airflow driving device (210) of the dust collector. The dust-air separator (120) is arranged in the dust cup (110) and divides an inner cavity of the dust cup (110) into a dust collection cavity (114) and an exhaust cavity (115), the mounting port (112) is located on one side of the exhaust cavity (115), and the dust discharge port (113) is located on one side of the dust collection cavity (114). The filter device (130) is arranged in the exhaust cavity (115) and blocks at least part of a flow passage (121) of the dust-air separator (120) when the dust cup (110) is discharged by the dust discharge port (113) of the cleaning base station. The dust-air separator (120) has a flow passage (121) communicating the dust collection cavity (114) and the exhaust cavity (115), the filter device (130) has a blocking part (131), 2. The dust collecting device (100) according to claim 1, characterized by The blocking part (131) blocks at least part of the flow passage (121) when the dust cup (110) is discharged by the dust discharge port (113) of the cleaning base station, The blocking part (131) is separated from the flow passage (121) when the dust collector is used for dust collection. The blocking part (131) is configured to move under the action of air pressure to block the flow passage (121) or be separated from the flow passage (121).

3. The dust collecting device (100) according to claim 2, characterized in that, The filter device (130) comprises:

4. The dust collecting device (100) according to claim 2, characterized in that, A fixing frame (132) in a hollow cylindrical shape, the fixing frame (132) is connected with the dust cup (110); A filter piece (133) covering the fixing frame (132), at least part of the filter piece (133) is air-tight to form the blocking part (131). The filter piece (133) comprises a body piece and a blocking piece (133a), the body piece is an air-permeable material piece, the body piece comprises a first region (1331) and a second region (1332), the first region (1331) is located on a side of the fixing frame (132) and is spaced apart from an inner wall of the exhaust cavity (115), the second region (1332) is located on a side of the fixing frame (132) away from the mounting port (112), and the blocking piece (133a) is an air-tight material piece, the blocking piece (133a) is attached to the second region (1332) and jointly forms the blocking part (131).

5. The dust collecting device (100) according to claim 4, characterized in that, ​ 6. The dust collecting device (100) according to claim 4, characterized in that, The filter (133) comprises a first region (1331) and a second region (1332), the first region (1331) is located on the side of the fixed frame (132) and is spaced from the inner wall of the exhaust cavity (115), the first region (1331) is a piece of air-permeable material, the second region (1332) is located at one end of the first region (1331) away from the installation opening (112), the second region (1332) is a piece of air-tight material, and the second region (1332) constitutes the blocking part (131).

7. The dust collecting device (100) according to claim 5 or 6, characterized in that, One end of the first region (1331) away from the installation opening (112) exceeds one end of the fixed frame (132) away from the installation opening (112), and the part of the first region (1331) exceeding the fixed frame (132) forms a deformation part (1331a), The deformation part (1331a) is configured to deform under the action of air pressure to make the blocking part (131) block the flow-through channel (121) or separate from the flow-through channel (121).

8. The dust collection device (100) according to claim 7, characterized in that, When the cleaning base station discharges dust from the dust cup (110) through the dust discharge opening (113), the deformation part (1331a) deforms and drives the second region (1332) to at least partially block the flow-through channel (121); When the dust collector is in use, the deformation part (1331a) deforms and drives the second region (1332) to move to between the flow-through channel (121) and the fixed frame (132).

9. The dust collecting device (100) according to claim 2, characterized by The flow-through channels (121) are multiple and arranged in an annular array, The projection of the blocking part (131) on a reference plane has a first diameter, and the projection of the multiple flow-through channels (121) in the reference plane collectively determines an inscribed circle having a second diameter, and the ratio of the first diameter to the second diameter is greater than or equal to 0.

4.

10. The dust collecting device (100) according to claim 2, characterized in that, The dust cup (110) comprises: a cup body (116), the dust suction opening (111) and the dust discharge opening (113) are provided on the cup body (116), and the cup body (116) has an open end in the axial direction; a mounting bracket (117) extending into the cup body (116) from the open end, the mounting bracket (117) defining the exhaust cavity (115) and the installation opening (112) communicating with the exhaust cavity (115), The filter device (130) is provided on the inner side of the mounting bracket (117), and the dust-air separator (120) is provided at the bottom of the mounting bracket (117), the bottom wall of the mounting bracket (117) has a connecting opening (1171) corresponding to the flow-through channel (121), and the connecting opening (1171) extends into the flow-through channel (121).

11. A vacuum cleaner comprising: It comprises: a machine body provided with a dust suction channel; an airflow driving device (210) provided on the machine body, the airflow driving device (210) having an air inlet and an air outlet; The dust collecting device (100) of any one of claims 1-10, wherein a mounting port (112) of a dust cup (110) of the dust collecting device (100) is in communication with the airflow driving device (210), the suction passage is connected with the suction port (111), and the air inlet port is opposite to and in communication with the mounting port (112).

12. A cleaning system characterized by, Comprising: The dust collector of claim 11; A cleaning base station configured at least to connect with a dust discharge port (113) of the dust cup (110) to discharge dust from the dust cup (110) through the dust discharge port (113).

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