Dust cup assembly for a vacuum cleaning apparatus

Abstract

The utility model relates to a dust cup assembly for vacuum cleaning equipment, comprising: a cup body having a cavity on the inner side, the cup body is provided with an ash inlet and an exhaust port; a cyclone separator, including the cyclone shell filter screen of the inner side definition cyclone separation cavity, the cyclone shell is arranged in the cavity and has the fluid inlet and the ash throwing opening of the communication cyclone separation cavity, the fluid inlet is in fluid communication with the ash inlet, the cavity at the periphery of cyclone shell and cyclone separation cavity are in fluid communication via the ash throwing opening, the inner side of filter screen definition first exhaust passage, exhaust pipe, located in the cavity and the inner side definition second exhaust passage, second exhaust passage is in fluid communication with the exhaust port, and cup cover can be detachably covered in the top of cup body and can close the cavity from the upside, the inside of cup cover definition one airflow passage, first exhaust passage, airflow passage and second exhaust passage are in fluid communication in proper order. The assembly of the case, through optimizing internal airflow path and structure layout, realizes efficient space utilization.

Description

Technical Field

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

[0002] The core function of a vacuum cleaner is to generate suction and draw airflow containing dust and debris into the device, where the dust is separated from the airflow and collected. The dust cup assembly is the key component for achieving both air-dust separation and dust collection. Among various separation technologies, cyclone separation technology is widely used due to its advantages such as high efficiency, no consumables (or reduced reliance on filter media), and ease of maintenance. Its basic principle is: the dust-laden airflow enters the cyclone separator tangentially, forming a high-speed rotating vortex within the cyclone separation chamber. Dust particles are thrown against the separator's perimeter wall under strong centrifugal force, separating from the clean air. Finally, the dust falls into the lower dust collection chamber under gravity.

[0003] As users continue to demand higher performance and better user experience from vacuum cleaners, there is a growing need for dust cup components to achieve higher separation efficiency and larger dust storage capacity within a limited overall machine space. Utility Model Content

[0004] In order to solve the problems mentioned above, the purpose of this utility model is to provide a dust cup assembly for vacuum cleaning equipment that can store a large amount of ash and operate with low noise.

[0005] Therefore, this application provides a dust cup assembly for a vacuum cleaning device, the dust cup assembly comprising: a cup body having an inner cavity, the cup body having a dust inlet and a dust outlet; a cyclone separator including a cyclone shell defining a cyclone separation chamber on its inner side and a filter screen located in the cyclone separation chamber, the cyclone shell being arranged in the cavity and having a fluid inlet and a dust-throwing opening communicating with the cyclone separation chamber, the fluid inlet being in fluid communication with the dust inlet, the cavity located on the periphery of the cyclone shell being in fluid communication with the cyclone separation chamber via the dust-throwing opening, the inner side of the filter screen defining a first exhaust channel for discharging airflow from the cyclone separation chamber; an exhaust pipe located in the cavity and defining a second exhaust channel on its inner side, the second exhaust channel being in fluid communication with the exhaust outlet; and a cup lid removably covering the top of the cup body and capable of closing the cavity from the top, the interior of the cup lid defining an airflow channel, the first exhaust channel, the airflow channel, and the second exhaust channel being in sequential fluid communication.

[0006] In some embodiments, the cup lid includes an upper lid and a lower lid, and the airflow channel is formed between the upper lid and the lower lid.

[0007] In some embodiments, the lower cover is provided with a channel inlet and a channel outlet, the channel inlet being connected to the first exhaust channel, and the channel outlet being connected to the upper end of the exhaust channel.

[0008] In some embodiments, the dust collection cup assembly further includes a filter element, which is detachably inserted into the first exhaust channel.

[0009] In some embodiments, the lower cover is provided with a filter element support around the channel inlet, and the filter element is detachably supported on the filter element support.

[0010] In some embodiments, the ash inlet and the exhaust outlet are located on the same side of the cup body.

[0011] In some embodiments, the cup body and the cyclone housing are an integral part.

[0012] In some embodiments, the cyclone shell and / or the cup body are provided with a spiral guide channel located between the ash inlet and the fluid inlet.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: by separating the dust collection chamber from the cyclone chamber used for air-ash separation, the separated dust will not be drawn into the airflow for secondary separation. This not only effectively improves the efficiency of air-ash cyclone separation, but also allows for the design of a larger volume dust storage chamber within the same space. Furthermore, since the airflow from the cyclone separation chamber passes through a "longer" channel, wind noise and eddy noise can be effectively reduced. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a dust cup assembly according to the present invention;

[0015] Figure 2 for Figure 1 A three-dimensional structural diagram of the dust cup assembly after removing the top cover;

[0016] Figure 3 for Figure 2 A longitudinal sectional view along the AA direction;

[0017] Figure 4 for Figure 2 A schematic diagram of the dust cup assembly after removing the lower cover;

[0018] Figure 5 for Figure 2 A disassembly diagram of the dust cup assembly. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] Please see Figures 1 to 5 A preferred embodiment of this utility model provides a dust cup assembly 100 for a vacuum cleaning device. A vacuum motor on the vacuum cleaning device provides the power to introduce dust-laden airflow into the assembly 100. After passing through the assembly 100, the dust is trapped, and the filtered air flows out of the assembly. This dust cup assembly 100 achieves efficient space utilization and convenient maintenance by optimizing the internal airflow path and structural layout.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the dust cup assembly 100 includes a cup body 1. The inner side of the cup body 1 has a cavity 11 for dust collection. In this embodiment, the cup body 1 has a dust inlet 12 and a dust outlet 13. As a preferred layout, the dust inlet 12 and the dust outlet 13 are distributed on the same side of the cup body 1, which facilitates centralized docking with corresponding pipes on the vacuum cleaning equipment and simplifies the connection structure.

[0022] The dust cup assembly 100 also includes a cyclone separator 2. The cyclone separator 2 includes a cyclone housing 22 that defines a cyclone separation chamber 21 on its inner side and a filter screen 23 located in the cyclone separation chamber 21. The cyclone housing 22 is arranged in the cavity 11 of the cup body 1.

[0023] The cyclone housing 22 has a fluid inlet 221 and a dust-throwing opening 222 that connect to the cyclone separation chamber 21. The fluid inlet 221 is in fluid communication with the dust inlet 12 of the cup body 1. The cavity 11 (i.e., the dust collection chamber) located on the periphery of the cyclone housing 22 is in fluid communication with the cyclone separation chamber 21 via the dust-throwing opening 222. The dust-laden airflow enters the cyclone separation chamber 21 tangentially from the dust inlet 12 through the fluid inlet 221, generating high-speed rotation. Under the action of centrifugal force, the dust is thrown into the peripheral cavity 11 through the dust-throwing opening 222. The inner side of the filter screen 23 defines a first exhaust channel 231 for discharging the airflow after primary cyclone separation from the top of the cyclone separation chamber 21.

[0024] To further optimize airflow guidance, a spiral guide channel (not shown in the figure) can be provided on the cyclone shell 22 and / or the cup body 1 between the ash inlet 12 and the fluid inlet 221. This spiral guide channel can cause the dust-laden airflow to pre-rotate before entering the cyclone separation chamber 21, thereby improving the subsequent cyclone separation efficiency.

[0025] An exhaust pipe 3 extending vertically is provided in the cavity 11. The inner side of the exhaust pipe 3 defines a second exhaust passage 31. The second exhaust passage 31 is in fluid communication with the exhaust port 13 of the cup body 1. Preferably, in order to maximize the utilization of the dust collection volume of the cavity 11, the exhaust pipe 3 is arranged near a corner of the cup body 1.

[0026] Combination Figure 3 , Figure 4 and Figure 5 As shown, the dust cup assembly 100 also includes a cup lid 4. The cup lid 4 is removably covered on the top of the cup body 1 and can be closed from the top of the cavity 11. The interior of the cup lid 4 defines an airflow passage 41.

[0027] When the cup lid 4 covers the top of the cup body 1, the first exhaust channel 231, the airflow channel 41 and the second exhaust channel 31 are sequentially fluidly connected, forming a complete and smooth exhaust path leading from the cyclone separation chamber 21 to the exhaust port 13.

[0028] Specifically, the cup lid 4 includes an upper lid 42 and a lower lid 43. An airflow channel 41 is formed in the space between the upper lid 42 and the lower lid 43. The lower lid 43 is provided with a channel inlet 431 and a channel outlet 432. The channel inlet 431 is connected to the upper end of the first exhaust channel 231 (i.e., the inner cavity of the filter screen 23). The channel outlet 432 is connected to the upper end of the exhaust pipe 3 (i.e., the inlet of the second exhaust channel 31). This sandwich-type airflow channel design is compact, effectively utilizes the thickness space of the cup lid 4, avoids the need for additional complex connecting pipes in the cavity 11 of the cup body 1, and frees up more space for dust collection. A sealing ring 44 is provided between the lower lid 43 and the top of the cup body 1.

[0029] To further enhance filtration efficiency, particularly in capturing extremely fine dust, the dust cup assembly 100 also includes a filter element 5. The filter element 5 is detachably inserted into the first exhaust channel 231, i.e., inserted inside the filter screen 23. When the cup lid 4 is opened, the user can easily remove the filter element 5 for cleaning or replacement. For stable installation, a filter element support 433 is provided on the lower cover 43 of the cup lid 4. This filter element support 433 is positioned around the channel inlet 431, and the filter element 5 is detachably supported on this filter element support 433. In a preferred embodiment, the filter element support 433 and the lower cover 43 are an integral part.

[0030] In another possible embodiment, the cup body 1 and the cyclone housing 22 can be integrally molded components. This integrated design simplifies the mold structure and assembly process, reduces production costs, and enhances the structural strength and airtightness of the entire dust cup assembly.

[0031] When the dust cup assembly 100 described above is in operation, the dust-laden airflow enters through the dust inlet 12 and enters the cyclone separation chamber 21 tangentially for primary separation. Most of the dust is thrown into the peripheral cavity 11 through the dust-throwing opening 222. The airflow then passes through the filter screen 23, enters the first exhaust channel 231, and carries some extremely fine dust through the filter element 5 for fine filtration. Subsequently, the clean airflow enters the airflow channel 41 of the cup lid 4, is introduced into the second exhaust channel 31 of the exhaust pipe 3 through the channel outlet 432, and finally exits from the exhaust port 13, entering the vacuum motor of the vacuum cleaning equipment.

[0032] This design integrates the exhaust channel into the detachable cup lid and optimizes the layout of each component, resulting in a compact structure and high space utilization. The internal space of the cup is maximized for the dust collection chamber, the exhaust pipe is positioned at a corner, and the cup lid utilizes a sandwich structure as a flow channel, collectively enhancing the dust storage capacity within a limited volume. When emptying the dust, users simply open the cup lid 4, which exposes the filter element 5 for easy removal and cleaning, providing a superior user experience. The pre-designed flow channel within the cup lid 4 precisely guides the airflow, ensuring a smooth transition from the first to the second exhaust channel and reducing airflow resistance and energy loss.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A dust cup assembly for a vacuum cleaning device, characterized in that, The dust cup assembly includes: The cup body has an inner cavity, and the cup body is provided with an ash inlet and an exhaust outlet. A cyclone separator includes a cyclone shell that defines an inner cyclone separation chamber and a filter screen located in the cyclone separation chamber. The cyclone shell is arranged in the cavity and has a fluid inlet and a dust-throwing opening communicating with the cyclone separation chamber. The fluid inlet is in fluid communication with the dust-throwing opening. The cavity located on the periphery of the cyclone shell is in fluid communication with the cyclone separation chamber via the dust-throwing opening. The inner side of the filter screen defines a first exhaust channel for discharging airflow from the cyclone separation chamber. An exhaust pipe, located within the cavity and internally defining a second exhaust passage, the second exhaust passage being in fluid communication with the exhaust port; and A cup lid is detachably placed over the top of the cup body and can close the cavity from above. The interior of the cup lid defines an airflow channel, and the first exhaust channel, the airflow channel, and the second exhaust channel are in sequential fluid communication.

2. The dust cup assembly according to claim 1, characterized in that, The cup lid includes an upper lid and a lower lid, and the airflow channel is formed between the upper lid and the lower lid.

3. The dust cup assembly according to claim 2, characterized in that, The lower cover is provided with a channel inlet and a channel outlet. The channel inlet is connected to the first exhaust channel, and the channel outlet is connected to the upper end of the exhaust channel.

4. The dust cup assembly according to claim 3, characterized in that, Also includes: The filter element is detachably inserted into the first exhaust channel.

5. The dust cup assembly according to claim 4, characterized in that, The lower cover is provided with a filter element support around the channel inlet, and the filter element is detachably supported on the filter element support.

6. The dust cup assembly according to claim 1, characterized in that, The ash inlet and the exhaust outlet are located on the same side of the cup body.

7. The dust cup assembly according to claim 1, characterized in that, The cup body and the cyclone shell are an integral part.

8. The dust cup assembly according to claim 1, characterized in that, The cyclone shell and / or the cup body are provided with a spiral flow guide channel located between the ash inlet and the fluid inlet.

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