Dust cup assembly, dust box assembly and cleaning robot

Abstract

The utility model relates to cleaning equipment technical field, the utility model provides a dust cup assembly, dust box subassembly and cleaning robot, including the axis vertical arrangement cyclone and set up the mounting bracket (for installing filter assembly) of cyclone upper end. Key improvement lies in: cyclone side wall sets up at least one tangential inlet channel, this inlet channel communicates dust box inner chamber, and its opening direction is cyclone barrel wall tangential. When dust-containing airflow enters cyclone from dust box through tangential inlet channel, form high-speed cyclone and produce centrifugal force, throw big granular garbage to barrel wall and fall into dust cup bottom under the action of gravity, thereby significantly reduce the garbage amount of direct impact filter assembly, effectively alleviate filter assembly blockage, maintain the stable suction of cleaning robot.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a dust cup assembly, a dust box assembly, and a cleaning robot. Background Technology

[0002] With the continuous advancement of technology, self-cleaning devices, represented by robotic vacuum cleaners, are becoming increasingly popular and deeply integrated into family life due to their significantly superior convenience and efficiency compared to traditional manual cleaning, becoming an important tool for freeing up users' hands.

[0003] Most existing robotic vacuum cleaners use a dustbin structure to collect the debris they suck in. The dustbin typically consists of a box body, a lid, and a crucial filtration component—the HEPA filter. As the robotic vacuum cleaner continues to operate, the collected debris (especially fine dust and lint) inevitably partially covers and clogs the surface of the upright HEPA filter. This clogging significantly increases air resistance, reduces suction power, and consequently weakens the robotic vacuum cleaner's effective cleaning ability. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a dust cup assembly, a dust box assembly, and a cleaning robot to reduce the clogging of the filter assembly.

[0005] To achieve the above and other related objectives, this utility model proposes a dust cup assembly for use in the dust box of a cleaning robot, the dust cup assembly comprising:

[0006] A cyclone separator, the axis of which is arranged in the vertical direction, and the upper end of which is used to connect with the fan unit of the cleaning robot;

[0007] Mounting bracket, used for mounting filter components, is located at the upper end of the cyclone.

[0008] The cyclone separator has at least one air inlet channel on its cylinder wall, which is connected to the inner cavity of the dust box. The opening direction of the air inlet channel is tangential to the cylinder wall of the cyclone separator.

[0009] In an optional embodiment of this utility model, a filter cylinder is further included, coaxially arranged with the cyclone separator. The cyclone separator is disposed inside the filter cylinder, and the filter cylinder has multiple through holes on its wall. Radially, the cyclone separator and the filter cylinder are arranged at intervals, and the upper end of the cyclone separator and the upper end of the filter cylinder form a closed structure.

[0010] In an optional embodiment of this utility model, the lower end of the filter cylinder is provided with an ash discharge door, and the lower end opening of the cyclone is attached to the upper part of the ash discharge door.

[0011] In an optional embodiment of this utility model, the ash discharge door is a flip-top cover, which is configured to open downwards under the action of gravity and / or wind.

[0012] In an optional embodiment of this utility model, the lower part of the cyclone is a conical cylinder structure with an inner diameter that gradually decreases from top to bottom, and the filter cylinder is a conical cylinder structure with an inner diameter that gradually decreases from top to bottom. An annular gas channel is formed between the filter cylinder and the cyclone, and the cone angle of the lower part of the cyclone is greater than the cone angle of the filter cylinder.

[0013] In an optional embodiment of this utility model, a separation cylinder is coaxially arranged inside the cyclone cylinder. The lower end of the separation cylinder is spaced apart from the lower end of the cyclone cylinder, and the upper end of the separation cylinder is closed with the upper end of the cyclone cylinder. The separation cylinder has a through central channel. In the radial direction, the separation cylinder and the cyclone cylinder are spaced apart. In the axial direction, the separation cylinder corresponds to the position of the air inlet channel.

[0014] In one optional embodiment of this utility model, the upper part of the cyclone is a straight upper cylinder structure of equal diameter, and the air inlet channel is located on the outer wall of the straight upper cylinder.

[0015] In an optional embodiment of this utility model, the separating cylinder and the upper straight cylinder are positioned and have the same height in the axial direction.

[0016] In an optional embodiment of this utility model, the cyclone includes a conical cylinder structure with an inner diameter that gradually decreases from top to bottom. The lower end of the conical cylinder structure is coaxially connected to a lower straight cylinder, and the upper straight cylinder is coaxially connected to the upper end of the conical cylinder structure.

[0017] In an optional embodiment of this utility model, the air inlet channel includes a guide wall and an opening formed on the cylinder wall of the cyclone. One end of the guide wall is connected to the edge of the opening. The guide wall extends tangentially along the cylinder wall of the cyclone. A lower wall is connected between the lower edge of the guide wall and the cylinder wall of the cyclone.

[0018] In one optional embodiment of this utility model, multiple air inlet channels are provided, and the multiple air inlet channels are arranged in a ring array around the axis.

[0019] This utility model also proposes a dustbin assembly for use in a cleaning robot, comprising:

[0020] Box body;

[0021] The dust cup assembly is disposed within the inner cavity of the box.

[0022] In one optional embodiment of this utility model, the lower end of the dust cup assembly is spaced apart from the bottom of the inner cavity of the box body, and / or;

[0023] The box body has a dust collection port for connecting to the cleaning base station, and a one-way opening dust collection door is provided between the dust collection port and the inner cavity of the box body.

[0024] This utility model also proposes a cleaning robot, characterized in that it includes the aforementioned dust box assembly.

[0025] In an optional embodiment of this utility model, the upper surface of the cleaning robot is provided with a light-transmitting component, and the dust cup assembly is at least partially exposed in the light-transmitting component.

[0026] The key technical advantage of this invention lies in the fact that the opening direction of the air inlet channel is tangential to the cyclone separator wall. When the dust-laden airflow enters the cyclone separator from the dust box cavity through these tangential air inlet channels, the airflow rotates at high speed along the tangential direction of the separator wall. This high-speed rotation generates a strong centrifugal force. Larger particles such as dust, debris, and hair are thrown towards the separator wall under the action of centrifugal force and fall downwards into the bottom area of ​​the dust cup (or dust box) under the combined action of gravity and airflow. This significantly reduces the direct impact and local clogging of the filter components by debris (especially large particles and flocculent matter). Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0028] Figure 1 This is a cross-sectional view of a cleaning robot according to one embodiment of the present invention;

[0029] Figure 2 This is a cross-sectional view of the dustbin assembly in one embodiment of the present invention;

[0030] Figure 3 This is a three-dimensional structural diagram of the dust cup assembly in one embodiment of the present invention;

[0031] Figure 4 This is a disassembly diagram of the dust cup assembly in one embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the cyclone tube in one embodiment of the present invention;

[0033] Figure 6This is a cross-sectional view of the dust cup assembly in one embodiment of the present invention.

[0034] Explanation of reference numerals in the attached drawings: 10, Cyclone; 11, Air inlet channel; 111, Opening; 112, Guide wall; 113, Lower wall; 12, Upper straight cylinder; 13, Lower straight cylinder; 20, Mounting bracket; 30, Filter assembly; 40, Filter cartridge; 50, Ash discharge door; 60, Separation cylinder; 70, Box body; 71, Dust collection port; 72, Dust collection door. Detailed Implementation

[0035] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0037] With the continuous advancement of technology, intelligent self-cleaning devices such as robotic vacuum cleaners have become widely used in households, serving as powerful assistants for daily cleaning. Compared to traditional manual cleaning methods, robotic vacuum cleaners offer significant advantages, especially in saving time and effort. Through built-in sensors and intelligent algorithms, they can automatically plan cleaning paths, easily completing floor cleaning tasks, thus freeing people's hands and improving their quality of life.

[0038] However, existing robotic vacuum cleaners still have some shortcomings in practical use, especially in terms of cleaning performance. Robotic vacuum cleaners are typically equipped with a dustbin for collecting debris and dust. The dustbin generally consists of a body, a lid, and a HEPA filter, among which the HEPA filter plays a crucial role. The HEPA filter effectively blocks fine dust and allergens, ensuring both cleaning effectiveness and air quality.

[0039] Currently, many robotic vacuum cleaners are designed with the HEPA filter placed vertically at the rear of the dustbin, near the fan. While this design provides good cleaning initially, the HEPA filter gradually becomes clogged with debris and dust over time. This clogging not only reduces suction power but also affects the overall cleaning efficiency of the robotic vacuum cleaner, lowering its performance. Therefore, optimizing the structure of the dustbin and HEPA filter to improve the cleaning capabilities of robotic vacuum cleaners remains a pressing issue that needs to be addressed in current technology.

[0040] To achieve the above objectives and other related objectives, such as Figure 2-6 As shown, this utility model proposes a dust cup assembly for use in the dust box of a cleaning robot. The dust cup assembly includes a cyclone 10 and a mounting bracket 20.

[0041] The axis of the cyclone 10 is arranged vertically, and the upper end of the cyclone 10 is used to connect with the fan unit of the cleaning robot. The vertical layout forms a vertical airflow channel, and the airflow moves from bottom to top. The fan directly connected to the upper end generates a stable negative pressure, driving the dust-laden airflow to flow efficiently upward from the bottom of the cyclone 10, providing a structured spatial basis for subsequent centrifugal separation and filtration paths.

[0042] Mounting bracket 20 is fixed to the top of cyclone 10 and is used to install filter assembly 30 (such as HEPA filter) so that filter assembly 30 is located between the inner cavity of cyclone 10 and the fan unit.

[0043] At least one air inlet channel 11 is provided on the wall of the cyclone 10, and the air inlet channel 11 communicates with the inner cavity of the dust box, such as... Figure 5 As shown, the opening direction of the air inlet channel 11 is tangential to the wall of the cyclone separator 10. The fact that the opening direction of the air inlet channel 11 is tangential to the wall of the cyclone separator 10 is a key design feature.

[0044] The cyclone 10 is arranged along the vertical axis, with a direct-flow fan at the top forming a negative pressure duct. A tangential air inlet channel 11 on the cyclone wall guides the dust-laden airflow at high speed. The centrifugal force of the rotation throws large particles against the cyclone wall, causing them to slide to the bottom of the dust box. The pre-purified rising airflow evenly penetrates the horizontally installed HEPA filter. Compared to traditional vertical filters that are easily clogged by direct airflow from debris, this design significantly reduces the filter load through cyclone pre-separation. Combined with the large airflow area and uniform airflow distribution of the horizontal filter, it significantly slows down the clogging process and maintains long-term stable fan suction.

[0045] When the dust-laden airflow enters the cyclone separator 10 from the dust box cavity through these tangential air inlet channels 11, the airflow rotates at high speed along the tangential direction of the separator wall. This high-speed rotation generates a strong centrifugal force. Larger particles such as dust, debris, and hair are thrown against the separator wall by this centrifugal force and, under the combined action of gravity and airflow, fall down the separator wall into the bottom area of ​​the dust cup (or dust box). Most of the larger particles that could clog the filter media are separated and collected at the bottom of the dust cup / dust box before reaching the filter assembly 30. This significantly reduces the amount and size of dust carried in the air that ultimately flows to the top filter assembly 30. After centrifugal separation by the cyclone separator 10, the relatively cleaner air (mainly finer dust particles not completely captured by centrifugal force) flows upward along the axial direction (vertical direction) of the cyclone separator 10 and is eventually drawn away by the fan unit located at the top. On its way to the fan, this upward-flowing airflow passes through the horizontal filter assembly 30 (HEPA) located in its path.

[0046] Unlike existing technologies where the filter screen is placed vertically at the air duct inlet and is easily impacted by airflow carrying debris, this design allows airflow to pass through the filter assembly 30 in a relatively gentle, vertically upward manner. The horizontally placed filter screen typically has a larger area, and the airflow is more evenly distributed across the entire filter surface, rather than being concentrated in localized areas. Since the pre-cyclone separator has already removed most of the coarse particles, fine dust tends to form a uniform filter cake on the filter assembly 30, rather than causing large-area blockage of the air duct as large particles would. This helps maintain an effective filtration area for a longer period. By effectively reducing clogging of the filter assembly 30, the fan's suction power can remain relatively stable over a longer operating time. Air resistance does not increase sharply due to rapid clogging of the filter screen by large particles, thus avoiding the problem of a rapid decline in cleaning ability caused by insufficient air pressure in the robot vacuum cleaner.

[0047] like Figure 5As shown, in an optional embodiment of this utility model, the air inlet channel 11 includes a guide wall 112 and an opening 111 formed on the cylinder wall of the cyclone 10. One end of the guide wall 112 is connected to the edge of the opening 111. The guide wall 112 extends tangentially along the cylinder wall of the cyclone 10, and a lower wall 113 connects the lower edge of the guide wall 112 to the cylinder wall of the cyclone 10. The guide wall 112 extends tangentially from the opening 111 on the cylinder wall of the cyclone 10, and together with the lower wall 113, forms a tunnel-like channel. By integrating the cyclone 10 and the air inlet channel 11 into one unit, the airflow turbulence caused by the assembly of multiple components is avoided. At the same time, the guiding characteristics of the guide wall 112 are used to guide the airflow into the cyclone 10 and rotate along the cylinder wall of the cyclone 10. If the upper edge of the opening 111 is lower than the upper end of the cyclone 10 (the opening 111 is not flush with the upper end of the cyclone 10), then an upper wall can be set between the upper edge of the guide wall 112 and the cylinder wall of the cyclone 10 to form a complete channel structure. If the opening 111 is flush with the upper end of the cyclone 10, then there is no need to set an upper wall, but the upper end of the guide wall 112 is sealed by the closed structure at the upper end of the cyclone 10.

[0048] like Figure 2 , 6 As shown, in an optional embodiment of this utility model, a filter cylinder 40 is added coaxially nested with the cyclone 10 outside the cyclone 10, with the cyclone 10 located inside the filter cylinder 40. Multiple through holes are evenly distributed on the wall of the filter cylinder 40. Radially, the cyclone 10 and the filter cylinder 40 are spaced apart, and the upper end of the cyclone 10 and the upper end of the filter cylinder 40 form a closed structure. The through-hole structure constitutes the first stage of physical interception, preventing large-volume debris (such as paper scraps or hair clumps) in the dust box from directly contacting the cyclone 10, thus avoiding blockage of the air inlet channel 11 or entanglement of the cylinder body. Unintercepted fine dust particles enter the annular space between the filter cylinder 40 and the cyclone 10 through the through holes with the airflow, and then undergo secondary centrifugal separation via the tangential air inlet channel 11 of the cyclone 10, forming a staged filtration mechanism. The coaxial nested layout is compact, balancing large particle pre-screening and fine separation functions, reducing maintenance frequency and protecting the stable operation of the core cyclone unit.

[0049] like Figure 2 , 6 As shown, in an optional embodiment of this utility model, a discharge door 50 is provided at the lower end of the filter cylinder 40, and the lower opening of the cyclone 10 is attached to the upper part of the discharge door 50. The discharge door 50 is located at the bottom of the cone and automatically opens and closes through the balance between the weight of the cover plate and the closing mechanism (spring / air pressure). When waste accumulates, gravity presses down to open the door plate. It automatically closes and seals after the fan runs or after cleaning. The coordinated design of the cone's centralized slag storage and the intelligent opening and closing of the discharge door 50 enables rapid slag discharge without disassembly, reducing the frequency of manual maintenance.

[0050] The dust collected by the ash discharge door 50 from the cyclone separator 10 can accumulate on its surface. When the ash discharge door 50 is opened, the accumulated material falls directly due to gravity, achieving rapid and centralized cleaning without disassembling the entire machine. The lower end of the cyclone separator 10 fits against the ash discharge door 50 to form a closed air duct, maintaining stable negative pressure during operation and allowing unobstructed flow during cleaning. The ash discharge door 50 can be a side-sliding baffle (opened and closed manually by pushing and pulling), a rotary ash discharge valve, or a flip-top valve (opened and closed by pressing a spring hinge), etc.

[0051] Specifically, the ash discharge door 50 adopts a flip-top cover design, whose opening and closing action is driven by the cover's own weight, airflow during operation, or external force. Normally, under the operation of the fan or the action of the internal spring mechanism, the flip-top cover remains closed upwards to ensure sealing during operation. When the amount of waste accumulated in the dust box reaches a certain level, the cover gradually overcomes the closing force due to the increasing weight it bears, and naturally flips downwards under gravity, allowing the waste to fall automatically. Alternatively, a specific external cleaning mechanism (such as the suction function of a cleaning base station or the reverse airflow of the equipment itself) can generate a pushing force to assist in opening the cover downwards for cleaning. This design allows waste to be discharged smoothly, automatically, or on demand, greatly simplifying the maintenance process and eliminating the need for users to repeatedly disassemble and reassemble the dust box components.

[0052] like Figure 2-6 As shown, in an optional embodiment of this utility model, the filter cylinder 40 is a conical structure with an inner diameter that gradually decreases from top to bottom. This structure causes its internal space to gradually shrink from top to bottom, while the outer chamber of the filter cylinder 40 forms an annular storage space that expands from top to bottom. During the waste separation process, larger particles that pop out or settle from the through holes in the cylinder wall fall naturally due to gravity, making it easier for them to accumulate in the spacious storage space on the outer bottom of the filter cylinder 40, avoiding compression or jamming in the narrow upper area. The conical structure not only guides waste to slide efficiently into the open bottom storage area, but also reduces the spatial constraint of the cylinder wall on waste accumulation, allowing the dust box to effectively utilize the external space of the cone to achieve reasonable temporary storage of large particles of waste, thus improving space utilization and waste carrying capacity.

[0053] like Figure 2 , 3 As shown in Figure 6, in an optional embodiment of this utility model, a separating cylinder 60 is coaxially arranged inside the cyclone 10, with its lower end maintaining a gap with the bottom of the cyclone 10 and its upper end being closedly connected to the top of the cyclone 10. The closed structure has a through central channel corresponding to the opening of the separating cylinder 60, and in the radial direction, an annular cavity is formed between the separating cylinder 60 and the inner wall of the cyclone 10. In the axial direction, the position of the separating cylinder 60 corresponds vertically to the tangential air inlet channel 11.

[0054] Upon entering, the high-speed, dust-laden airflow impacts the outer wall of the separator 60, causing large particles to settle due to inertial impaction. The airflow then reverses, forming a downward vortex that further separates the fine dust. The purified gas rises, bypassing the top of the separator 60, and flows towards the filter screen. This physical barrier blocks the direct path of the dust flow to the filter screen, enhancing dust pre-settling through kinetic energy dissipation and flow direction repositioning, thereby reducing the instantaneous impact load on the filter screen.

[0055] When the dust-laden airflow enters the cyclone separator 10 at high tangential speed from the inlet channel 11, it first impacts the outer wall of the separator 60 instead of rising directly upwards. After impacting the surface of the separator 60, the kinetic energy of the airflow is blocked and dispersed. Large dust particles impact the separator wall due to inertia and slide downwards into the gap area due to gravity. At the same time, the blocked and scattered airflow is forced to change direction, forming a downward swirling turbulence in the annular cavity, causing more dust particles to settle. The cleaned gas finally flows upwards around the lower end of the separator 60 and vertically to the filter assembly 30 from the central channel reserved at the upper end of the separator. The separator 60 forms a physical barrier, directly intercepting the impact path of the dust-laden airflow on the top filter assembly 30, and promoting dust pre-separation by changing the flow direction, reducing the risk of instantaneous loading and local clogging of the filter screen by dust particles, and extending the filter material life.

[0056] During operation, as dust-laden air passes through the air inlet channel 11 on the cyclone 10, the decreasing inner diameter naturally guides large particles of debris to converge towards the bottom center. The conical inner wall forms a slope, which helps the collected waste to slide more smoothly towards the bottom ash discharge door 50 by gravity or airflow disturbance, reducing the possibility of accumulation on the side walls, especially in the upper part. At the same time, the narrowed lower end enhances the centripetal guidance of the airflow, causing any remaining unintercepted fine dust to flow more concentratedly towards the central air inlet channel 11 of the cyclone 10 for further separation. The conical design improves the efficiency of waste accumulation towards the bottom center and optimizes the path of fine dust flow to the separation core, improving the overall pre-screening and waste concentration effects.

[0057] like Figure 2As shown, in an optional embodiment of this utility model, the filter cylinder 40 is a conical cylinder structure with its inner diameter gradually decreasing from top to bottom. The cone angle (the cone angle refers to the angle between two generatrices within the axial section of a cone) of the lower part of the cyclone 10 is greater than that of the filter cylinder 40. This creates an annular gas channel that expands from top to bottom between the lower part of the cyclone 10 and the filter cylinder 40. Before entering the cyclone 10, the dust-laden airflow passes through the annular gas channel. Due to gravity, heavier dust particles in the airflow will settle downwards, achieving preliminary dust separation. The annular gas channel's structure, with a smaller top and a larger bottom, slows down the airflow at the bottom, which is beneficial for more dust to settle at the bottom of the channel, improving deposition efficiency. Meanwhile, the dust pile deposited in the annular gas channel also has a structure that is smaller at the top and larger at the bottom. Due to the design of the channel and the dust pile, the dust is not easy to adhere and accumulate on the channel wall, especially in a humid environment. This can effectively prevent the dust from sticking to the wall due to moisture, keep the channel unobstructed, and make it easier for the dust to slide smoothly out of the ash discharge door 50 from the bottom under the action of gravity, which is convenient for dust collection and cleaning.

[0058] like Figure 2 , 6 As shown, in an optional embodiment of this utility model, the upper structure of the cyclone 10 adopts a straight upper cylinder 12 of uniform diameter, and the tangential air inlet channel 11 is opened on the outer wall of this section of the cylinder. This uniform cylindrical structure provides a stable and continuous rotating channel for the high-speed airflow entering from the air inlet channel 11, avoiding airflow disturbance caused by shape changes. The stable rotating flow field helps to apply centrifugal force to the dust-laden airflow more orderly and uniformly, thereby improving the efficiency of dust particles being separated and thrown off the cylinder wall, creating good basic conditions for subsequent dust settling and top airflow outward.

[0059] like Figure 2 , 6 As shown, in an optional embodiment of this invention, the separating cylinder 60 is axially positioned to perfectly correspond to and have the same height as the upper straight cylinder 12 of equal diameter at the top of the cyclone 10. This precise positioning means that the blocking range of the separating cylinder 60 in the vertical direction precisely covers the entire area of ​​the upper straight cylinder 12 where the main airflow inlet (tangential air inlet channel 11) is located. When a high-speed dust-laden airflow is horizontally and tangentially injected from the air inlet channel 11, it will be completely blocked by the outer wall of the entire separating cylinder 60, effectively preventing the airflow from carrying large dust particles directly upward to impact the top filter assembly 30. The airflow and most of the particles it carries are forced to impact the surface of the separating cylinder 60 and change its flow direction, enhancing the initial settling effect of dust before the airflow reaches the filter assembly 30.

[0060] like Figure 2 , 3 As shown in Figures 4 and 6, in an optional embodiment of this utility model, the lower part of the cyclone 10 is a conical cylinder structure with an inner diameter that gradually decreases from top to bottom.

[0061] The lower part of the cyclone 10 adopts a conical cylinder with a narrowed, sloping inner wall to accelerate the accumulation of waste towards the ash discharge door 50. The upper part is a straight cylinder 12 of equal diameter, with a ring array of tangential air inlet channels 11 opening on the cylindrical surface. The cylindrical section provides a stable swirling flow field to enhance centrifugal separation, while the conical section improves dust collection efficiency. The dual-reconfiguration optimizes airflow dynamics performance, balancing the stability of rotational separation with the guidance of sedimentation.

[0062] like Figure 6 As shown, a lower straight cylinder 13 is coaxially connected to the lower end of the conical cylinder structure, and an upper straight cylinder 12 is coaxially connected to the upper end of the conical cylinder structure. The upper straight cylinder 12 and the lower straight cylinder 13 act as reinforcing ribs in the structure, providing rigid support for the front and rear of the conical cylinder, which helps to improve the overall pressure resistance and impact resistance of the cylinder. Especially under conditions of strong suction or long-term operation, it can effectively prevent the cylinder from deforming due to pressure fluctuations or external impacts, thus improving durability.

[0063] like Figure 5 As shown, in an optional embodiment of this utility model, a plurality of air inlet channels 11 are arranged symmetrically in a ring along the axis of the cyclone 10. Specifically, the tangential air inlet channels 11 are uniformly arranged around the cylinder wall to form a circumferential array.

[0064] Multiple tangential air inlet channels 11 are evenly distributed in a ring along the axis of the cyclone 10. The symmetrical layout allows multiple airflows to converge evenly, forming a strong swirling flow field that reduces turbulence disturbance and improves the consistency of centrifugal force. The multiple channels disperse the airflow load, avoiding the risk of single-inlet blockage and ensuring continuous and reliable system operation.

[0065] This symmetrical layout allows dust-laden airflow to enter the cyclone separator 10 uniformly from multiple angles, with each airflow superimposing to form a more balanced and stable vortex flow field. The symmetry and continuity of the rotating airflow are enhanced, reducing the probability of localized turbulence or uneven velocity. Uniform rotation helps dust particles continuously withstand stable centrifugal force, resulting in more efficient throwing against the separator wall, while reducing energy loss due to uneven airflow distribution within the separator. The multi-inlet design also disperses the airflow load per unit area, reducing the risk of individual inlet channels 11 being blocked by large particles, improving the overall reliability of the inlet channels, and supporting the smooth and continuous operation of the separation process.

[0066] like Figure 2 As shown, this utility model also proposes a dustbin assembly for use in a cleaning robot, including a box body 70 and a dust cup assembly. The dust cup assembly is disposed in the inner cavity of the box body 70.

[0067] like Figure 2As shown, in an optional embodiment of this utility model, the bottom of the dust cup assembly is separated from the bottom of the dust box cavity, forming a suspended space gap between them. The suspended bottom of the dust cup forms a temporary storage space, which facilitates the base station's negative pressure suction to cover the entire dust collection area, while reserving positional space for the operation of the ash unloading door 50.

[0068] This gap provides temporary storage space for the separated dust and debris, preventing them from directly contacting the bottom structure of the dust cup. Simultaneously, the suspended design allows the suction power of the external cleaning station to be fully applied to the inside of the dust cup through the bottom gap, improving debris transfer efficiency and providing operational space for the bottom dust unloading mechanism.

[0069] like Figure 2 As shown, in an optional embodiment of this utility model, a dust collection port 71 is provided on the side wall of the dust box body 70, and a dust collection door 72 that can be opened in one direction is built in. The upper end of the dust collection door 72 is hinged to the side wall of the box body 70. When the dust collection door 72 is connected to the base station, it opens laterally under the action of suction negative pressure to discharge slag. After the suction negative pressure ends, the door closes under its own weight to prevent dust from overflowing. Non-contact automated cleaning reduces manual intervention.

[0070] When the cleaning base station is docked, the powerful suction of its dust collection unit creates negative pressure, driving the dust collection door 72 to open automatically to the side. Under the guidance of negative pressure, the waste is efficiently extracted through the dust collection port 71, and the dust collection door 72 automatically closes as the pressure disappears after the process is complete. The one-way opening mechanism ensures both a sealed dust collection effect when the workstation is docked and prevents dust from overflowing from inside the dust box during normal operation, achieving non-disassembly automated cleaning.

[0071] like Figure 1 As shown, this utility model also proposes a cleaning robot that integrates the aforementioned dustbin assembly as the core dust collection unit, and is equipped with a walking chassis, a fan system, a navigation module, and cleaning mechanisms (such as roller brushes and side brushes). The dustbin assembly is located in the detachable area of ​​the upper part of the robot body and is connected to the bottom suction port through a sealed air duct, realizing the integrated function of garbage collection, separation, and storage. When the robot is working, the dust-laden airflow is discharged after multi-stage separation and purification by the dust cup assembly, and the dust particles settle in the dustbin.

[0072] In one optional embodiment of this invention, a light-transmitting component (such as a transparent or semi-transparent cover) is installed in a specific area on the upper surface of the robot, corresponding to the visible section of the dust cup assembly. This design allows the internal structure and dust accumulation status of the dust cup assembly to be directly observed through the light-transmitting component. Users can intuitively judge the amount of internal waste or the degree of filter contamination without opening the dust cover, and promptly know the need for emptying or maintenance. The transparent design transforms the traditional hidden dust collection unit into a monitorable functional module, significantly improving ease of use and eliminating the burden of frequent opening for inspection.

[0073] In summary, this invention, through the design of the cyclone 10, utilizes the high-speed rotating airflow generated by the tangential air inlet channel 11 to achieve preliminary centrifugal separation, effectively separating larger particles such as dust, debris, and hair from the airflow, reducing the amount of particulate matter entering the HEPA filter. This design effectively extends the filter's lifespan, reduces clogging, and maintains long-term high-efficiency cleaning capability. By introducing a coaxially nested filter cartridge 40 and separation cartridge 60 design, a multi-stage filtration mechanism is adopted, first physically intercepting large particles, followed by more detailed centrifugal separation. This not only protects the cyclone 10 from clogging by large particles but also reduces the burden on the filter assembly 30, improving the cleaning effect. An automatically opening dust discharge door 50 is designed, allowing garbage and dust to fall directly under gravity. Users can easily clean without disassembling the dust cup, greatly improving cleaning convenience and avoiding cumbersome maintenance operations. The cyclone 10 and filter cartridge 40 adopt a conical design, which efficiently guides garbage downwards and optimizes space utilization. Meanwhile, the suspended design of the dust cup assembly provides more space for temporary storage and transfer of waste, ensuring an efficient and smooth cleaning process. The transparent dust cup design allows users to easily view the status of waste collection and the filter, keeping track of cleaning progress and when it needs cleaning, further enhancing ease of use. This cleaning robot not only possesses powerful cleaning capabilities but also enhances the user experience through multiple design features. These include an efficient waste collection, separation, and storage mechanism, which reduces the frequency and difficulty of subsequent maintenance while completing the cleaning task.

[0074] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0075] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0076] Throughout this specification, references to "an embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the present invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the present invention described and illustrated herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0077] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0078] Furthermore, unless otherwise expressly stated, any arrows in the accompanying drawings should be considered illustrative only and not limiting. Additionally, unless otherwise stated, the term "or" as used herein is generally intended to mean "and / or". Where a term is anticipated to provide a separation or combination capability that is unclear, a combination of components or steps will also be considered as indicated.

[0079] As used herein and throughout the claims below, unless otherwise specified, “a” and “the” include the plural references. Similarly, as used herein and throughout the claims below, unless otherwise specified, “in” means “in” and “on”.

[0080] The above description of the embodiments shown in this utility model (including the content set forth in the abstract of the specification) is not intended to be an exhaustive enumeration or to limit the utility model to the precise forms disclosed herein. Although specific embodiments and examples of the utility model have been described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the utility model, as will be recognized and understood by those skilled in the art. As indicated, these modifications can be made to the utility model in accordance with the above description of the embodiments described herein, and such modifications will be within the spirit and scope of the utility model.

[0081] This document has generally described the systems and methods in detail to aid in understanding the present invention. Furthermore, various specific details have been set forth to provide a general understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention can be practiced without one or more specific details, or using other devices, systems, accessories, methods, components, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0082] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. A dust cup assembly, characterized in that, The dust cup assembly is designed for placement in the dustbin of a cleaning robot and includes: A cyclone separator, the axis of which is arranged in the vertical direction, and the upper end of which is used to connect with the fan unit of the cleaning robot; Mounting bracket, used for mounting filter components, is located at the upper end of the cyclone. The cyclone separator has at least one air inlet channel on its cylinder wall, which is connected to the inner cavity of the dust box. The opening direction of the air inlet channel is tangential to the cylinder wall of the cyclone separator.

2. The dust cup assembly according to claim 1, characterized in that, It also includes a filter cylinder arranged coaxially with the cyclone cylinder. The cyclone cylinder is disposed inside the filter cylinder. The filter cylinder has multiple through holes on its cylinder wall. In the radial direction, the cyclone cylinder and the filter cylinder are arranged at intervals. The upper end of the cyclone cylinder and the upper end of the filter cylinder form a closed structure.

3. The dust cup assembly according to claim 2, characterized in that, The filter cartridge is provided with an ash discharge door at its lower end, and the lower opening of the cyclone is attached to the top of the ash discharge door.

4. The dust cup assembly according to claim 3, characterized in that, The ash discharge door is a flip-top cover, which is configured to open downwards under the influence of gravity and / or wind.

5. The dust cup assembly according to claim 2, characterized in that, The lower part of the cyclone is a conical structure with an inner diameter that gradually decreases from top to bottom, and the filter cylinder is also a conical structure with an inner diameter that gradually decreases from top to bottom. The cone angle of the lower part of the cyclone is greater than that of the filter cylinder, so as to form an annular gas channel that expands from top to bottom between the filter cylinder and the lower part of the cyclone.

6. The dust cup assembly according to claim 1, characterized in that, A separation cylinder is coaxially arranged inside the cyclone. The lower end of the separation cylinder is spaced apart from the lower end of the cyclone. The upper end of the separation cylinder and the upper end of the cyclone are in a closed structure. The separation cylinder has a through central channel. In the radial direction, the separation cylinder and the cyclone are spaced apart. In the axial direction, the separation cylinder corresponds to the position of the air inlet channel.

7. The dust cup assembly according to claim 6, characterized in that, The upper part of the cyclone is a straight cylinder structure with a constant diameter, and the air inlet channel is located on the outer wall of the straight cylinder.

8. The dust cup assembly according to claim 7, characterized in that, In the axial direction, the separation cylinder and the upper straight cylinder are positioned and have the same height.

9. The dust cup assembly according to claim 7, characterized in that, The cyclone includes a conical cylinder structure with an inner diameter that gradually decreases from top to bottom. The lower end of the conical cylinder structure is coaxially connected to a lower straight cylinder, and the upper straight cylinder is coaxially connected to the upper end of the conical cylinder structure.

10. The dust cup assembly according to claim 1, characterized in that, The air inlet channel includes a guide wall and an opening on the cylinder wall of the cyclone. One end of the guide wall is connected to the edge of the opening. The guide wall extends tangentially along the cylinder wall of the cyclone. A lower wall connects the lower edge of the guide wall to the cylinder wall of the cyclone.

11. The dust cup assembly according to claim 1, characterized in that, The air intake channel is provided in multiple ways, and the multiple air intake channels are arranged in a ring array around the axis.

12. A dustbin assembly, characterized in that, Applications in cleaning robots, including: Box body; The dust cup assembly is the dust cup assembly as described in any one of claims 1-11, and is disposed in the inner cavity of the housing.

13. The dustbin assembly according to claim 12, characterized in that, The lower end of the dust cup assembly is spaced apart from the bottom of the inner cavity of the box body, and / or; The box body has a dust collection port for connecting to the cleaning base station, and a one-way opening dust collection door is provided between the dust collection port and the inner cavity of the box body.

14. A cleaning robot, characterized in that, Includes the dust box assembly as described in claim 12 or 13.

15. The cleaning robot according to claim 14, characterized in that, The cleaning robot has a light-transmitting component on its upper surface, and the dust cup assembly is at least partially exposed through the light-transmitting component.

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