Cyclone separation structure of dust collector and dust collector

Abstract

The dust collector is provided with a dirt inlet pipe, the cyclone separation structure is installed in the dust collector, the cyclone separation structure comprises an air guide cover and a filter part, the air guide cover covers one side of the filter part, the air guide cover is provided with an air inlet guide pipe, and the air inlet end of the air inlet guide pipe is connected with the dirt inlet pipe in a sealed mode; an air outlet duct is arranged on the upper side of the inner cavity of the filtering piece; the air outlet end of the air inlet guide pipe is butted with the air outlet duct; the filter part axially extends to form a filter cartridge, the filter cartridge is provided with a filter grid, the filter grid is spirally distributed, and the filter cartridge is communicated to an inner cavity of the filter part; a cyclone cavity is formed between the filter cartridge and the side wall of the filter part, air flow is output through an outlet of the air outlet duct and then cyclones along the cyclone cavity, and the air flow is filtered by the filter cartridge and then enters an inner cavity of the filter part; therefore, the technical problems that an existing cyclone separation structure is not regular enough, the use experience of a user is affected, the assembling and forming process is complex, and the production cost is high are solved.

Description

Technical Field

[0001] The present application relates to the technical field of vacuum cleaners, and in particular to a cyclone separation structure of a vacuum cleaner and a vacuum cleaner. Background Art

[0002] As people's living standards improve, their requirements for quality of life are getting higher and higher, and vacuum cleaners have gradually become a common vacuum cleaning tool in households. The working principle of a vacuum cleaner is to use an electric motor to drive the blades to rotate at high speed, generate negative air pressure in a sealed shell, absorb dust and other dirt, and achieve the purpose of cleaning.

[0003] Some existing vacuum cleaners are usually equipped with a cyclone separator to perform preliminary filtration on the sucked dirt to filter out large-sized dirt, prevent clogging of filtering structures such as filter screens, and rectify the airflow. However, the existing cyclone separator lacks a partition structure between the initial air inlet duct and the air duct after filtration, and the structure is not regular enough, so the airflow is prone to confusion, resulting in incomplete filtration, affecting the user experience, and the overall structure of the separator is relatively complex, mostly integrally formed, with relatively complex assembly and molding processes and high production costs. Utility Model Content

[0004] The utility model aims to solve the above technical problems and provides a cyclone separation structure for a vacuum cleaner. The air inlet duct and the filter duct of the utility model are separated, and the structure is regular and easy to assemble.

[0005] In order to achieve the above purpose, the technical solutions of the utility model include:

[0006] 14. The vacuum cleaner of claim 13, wherein the filter element is configured to have a cyclone separation structure, wherein the filter element is provided with a sewage inlet pipe, and the cyclone separation structure is installed inside the vacuum cleaner, and the cyclone separation structure comprises an air guide cover and a filter element, wherein the air guide cover is covered on one side of the filter element, the air guide cover is provided with an air inlet duct, and the air inlet end of the air inlet duct is sealed and connected to the sewage inlet pipe; an air outlet is provided on the upper side of the inner cavity of the filter element, and the air outlet end of the air inlet duct is connected to the air outlet duct; a filter cartridge is axially extended by the filter element, and the filter cartridge is provided with a filter grille, the filter grille is spirally distributed, and the spiral direction is consistent with the air outlet direction of the air outlet duct, and the filter cartridge is connected to the inner cavity of the filter element; a cyclone chamber is formed between the filter cartridge and the side wall of the filter element, and the airflow is output through the outlet of the air outlet duct and then cyclones along the cyclone chamber, and enters the inner cavity of the filter element after being filtered by the filter cartridge.

[0007] In the present application, the cyclone separation structure is connected to the sewage inlet pipe of the vacuum cleaner, and the sucked dirt is separated and filtered after the cyclone to filter out large particles of dirt; the air guide cover is connected to the filter element, so that the air inlet duct is connected to the air outlet duct to form an independent air outlet channel, and the air outlet of the air outlet duct cyclones on the periphery of the filter cylinder, corresponding to the filter grille, and enters the inner cavity of the filter element after preliminary filtration through the filter grille; since the air outlet duct and the inner cavity of the filter element are separated, the air duct structure is regular, the filtered airflow and the initial airflow are not easy to be confused, and the filtration is more thorough, and the cyclone separation structure is composed of the air guide cover and the filter element, which is easy to operate during assembly, and the separate components are easier to form, which effectively reduces the processing cost and has a high processing qualification rate.

[0008] In one of the embodiments, the portion of the filter cartridge connected to the outlet of the air outlet is a closed surface, and the closed surface gradually shrinks along the spiral direction of the filter grille.

[0009] In one of the embodiments, the outer circumference of the filter cartridge is formed by a plurality of air guide plates which are arranged at intervals and distributed in a spiral pattern to form the filter grid, and the size of the filter cartridge gradually decreases along the axial direction.

[0010] In one of the embodiments, the upper side of the filter element forms communication ports at both ends of the air outlet duct, and the airflow entering the inner cavity of the filter element after filtration is output through the communication ports.

[0011] In one of the embodiments, a filter sleeve is installed on the top of the filter element, an opening is provided in the middle of the filter sleeve, and the opening is connected to the connecting port; the filter sleeve is provided with filter cotton or filter net at the opening.

[0012] In one of the embodiments, a dust outlet is provided at the lower side of the outer wall of the filter element, and the dust outlet is connected to the inner cavity of the vacuum cleaner.

[0013] In one of the embodiments, the air guide cover and the filter element are fixed by ultrasonic welding.

[0014] In one embodiment, an arc-shaped plate extends from the outlet end of the air inlet duct, and an arc-shaped groove is provided at a corresponding position of the air outlet duct. When the air guide cover is connected to the filter element, the arc-shaped plate fits into the arc-shaped groove.

[0015] The present application also provides a vacuum cleaner, comprising a shell, a floor brush and the above-mentioned cyclone separation structure, wherein the cyclone separation structure is installed in the shell, and the shell is provided with the sewage inlet pipe to connect with the air inlet duct.

[0016] Optionally, the axial direction of the filter cartridge is consistent with the running direction of the floor brush. The cyclone separation structure installed in the vacuum cleaner of the present application is regular and can perform preliminary filtration on the sucked dirt. Moreover, since its axial direction is consistent with the running direction of the floor brush, and since this part of the shell is a dust cup, when transparent, the internal cyclone separation structure further makes the appearance neat and improves the aesthetics of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural sectional view of the vacuum cleaner provided by the utility model;

[0018] Figure 2 A schematic diagram of the structure of the cyclone separation structure provided by the utility model;

[0019] Figure 3 A structural cross-sectional view of the cyclone separation structure provided by the utility model;

[0020] Figure 4 A structural schematic diagram of the filter element connecting port provided by the utility model;

[0021] Figure 5 This is a schematic diagram of the structural decomposition of the cyclone separation structure provided by the utility model. DETAILED DESCRIPTION

[0022] The embodiments of the present application provide a cyclone separation structure of a vacuum cleaner and a vacuum cleaner, which are used to solve the technical problems that the existing cyclone separation structure is not regular enough, the wind flow is prone to chaos, resulting in incomplete filtration, affecting the user experience, and the overall structure of the separator is relatively complex, mostly integrally formed, the assembly and molding process is relatively complex, and the production cost is relatively high.

[0023] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] See also Figures 1 to 5The embodiment of the present application provides a cyclone separation structure of a vacuum cleaner, the vacuum cleaner 100 is provided with a sewage inlet pipe 110, the cyclone separation structure is installed inside the vacuum cleaner 100, the cyclone separation structure includes an air guide cover 200 and a filter element 300, the air guide cover 200 covers one side of the filter element 300, the air guide cover 200 is provided with an air inlet duct 210, the air inlet end of the air inlet duct 210 is sealed and connected to the sewage inlet pipe 110; an air outlet duct 310 is provided on the upper side of the inner cavity of the filter element 300, the air outlet end of the air inlet duct 210 is connected to the air outlet duct 210, and the air outlet end of the air inlet duct 210 is connected to the air outlet duct 210. The filter element 300 is connected to the duct 310; a filter cartridge 320 is axially extended from the filter element 300, and a filter grille 321 is provided on the filter cartridge 320. The filter grille 321 is spirally distributed, and the spiral direction is consistent with the air outlet direction of the air outlet duct 310. The filter cartridge 320 is connected to the inner cavity of the filter element 300; a cyclone cavity is formed between the filter cartridge 320 and the side wall of the filter element 300. After the airflow is output through the outlet of the air outlet duct 310, it is cycloned along the cyclone cavity 330, and enters the inner cavity of the filter element 300 after being filtered by the filter cartridge 320.

[0025] Specifically, the inner cavity of the vacuum cleaner 100 extends with a sewage inlet pipe 110, and the main body of the air guide cover 200 extends with an air inlet duct 210. The bottom of the air inlet duct 210 is the air inlet end, which is plugged into the sewage inlet pipe 110 and sleeved with a sealing ring to form a sealed connection; one side of the air guide cover 200 covers one side of the filter element 300, and the upper part of the inner cavity of the filter element 300 is separated with an air outlet duct 310, and one end of the air outlet duct 310 is connected to the outlet end of the air inlet duct 210, and the outlet of the air outlet duct 310 is located on the other side of the filter element 300, and a filter cartridge 320 is axially extended on this side, and a filter grille 321 is provided on the outer periphery of the filter cartridge 320, and the filter grilles 321 are spirally distributed, and the spiral The direction is consistent with the wind direction of the cyclone after the air is discharged from the air outlet 310, thereby effectively preventing large particles of dirt from entering the inner cavity of the filter element 300; the outlet of the air outlet 310 is located on the upper side of the filter cartridge 320, and after the air is discharged, it is cycloned along the cyclone cavity formed by the side wall of the filter cartridge 320 and the filter element 300, and then filtered by the filter grille 321 and enters the inner cavity of the filter element 300 from the filter cartridge 310; in this embodiment, since the air inlet duct 210 and the air outlet duct 310 are connected to form a separated air duct, the air inlet and the air outlet are not easy to affect each other and reduce the filtering efficiency. In addition, since the cyclone separation structure is formed by the air guide cover 200 covering the filter element 300, it is easy to assemble and process.

[0026] Furthermore, the portion where the filter cartridge 320 is connected to the outlet of the air outlet 310 is a closed surface 322, and the closed surface 322 gradually decreases along the spiral direction of the filter grille 321. The outlet of the air outlet 310 is located on the upper side of the filter cartridge 320, and the direction intersects with the axial direction of the filter cartridge 320. The position where the filter cartridge 320 is connected to the outlet of the air outlet 310 corresponds to the closed surface 322, and the closed surface 322 gradually decreases along the direction of the cyclone, so that the outlet air is filtered through the filter grille 321 after forming a cyclone, blocking large particles of dirt and ensuring sufficient filtration.

[0027] Furthermore, the outer periphery of the filter cartridge 320 is provided with a plurality of air guide plates 3211 arranged at intervals and distributed in a spiral manner to form a filter grille 321, and the size of the filter cartridge 320 gradually decreases along the axial direction. The diameter of the filter cartridge 320 gradually decreases along the axial direction, and the filter cartridge 320 is provided with air guide plates 3211 arranged at intervals on the outer periphery, and the air guide plates 3211 are arc-shaped, and the direction of the arc is consistent with the cyclone direction of the air outlet, and the end face of the filter cartridge 320 is provided with obliquely distributed air guide ribs, and the middle part is provided with a plurality of holes, thereby ensuring that large particles of dirt can be blocked in multiple directions.

[0028] participate Figure 4 , the upper side of the filter 300 forms a connecting port 340 at both ends of the air outlet 310, and the airflow entering the inner cavity of the filter 300 after filtering is output through the connecting port 340. One side of the filter 300 forms an annular inner cavity under the cover of the air guide cover 200, and the upper side of the filter 300 forms connecting ports 340 at both ends under the separation of the side wall of the air outlet 310, and the connecting port 340 can output the airflow after preliminary filtration upward for the next step of filtration; a filter sleeve 400 is installed on the top of the filter 300, and an opening is provided in the middle of the filter sleeve 400, and the opening is connected to the connecting port 340; the filter sleeve 400 is provided with filter cotton or filter net at the opening; the outer periphery of the filter sleeve 400 is adapted to the shape of the inner cavity of the vacuum cleaner 100, and is snapped into the inner cavity of the vacuum cleaner 100, and the airflow after preliminary filtration is secondary filtered through the provided filter surface or filter net.

[0029] Furthermore, a dust outlet 350 is provided at the lower side of the outer wall of the filter element 300, and the dust outlet 350 is connected to the inner cavity of the vacuum cleaner 100. The dust outlet 350 is provided at the lower side of the outer wall of the filter element 300, and the large-sized dirt blocked by the filter cartridge 320 is collected at the dust cup provided in the inner cavity of the vacuum cleaner 100 through the dust outlet 350, which is convenient for cleaning.

[0030] See also Figure 5, the air guide cover 200 and the filter element 300 are fixed by ultrasonic welding. After the air guide cover 200 and the filter element 300 are fixed by ultrasonic welding, the peripheral connection between them is firmly connected, and the joint is not easy to leak air; the outlet end of the air inlet duct 210 is extended with an arc plate 211, and the corresponding position of the air outlet duct 310 is provided with an arc groove 311. When the air guide cover 200 and the filter element 300 are connected, the arc plate 211 fits in the arc groove 311. The outlet end of the air inlet duct 210 is laterally extended with an arc plate 211 at the lower side, and the filter element 300 is provided with an arc groove 311 at the lower side of the inlet end of the air outlet duct 310. When the air guide cover 200 is covered on the filter element 300, the arc plate 211 fits in the arc groove 311, which is convenient for positioning during assembly, ensuring a tight connection and preventing air leakage.

[0031] This embodiment also provides a vacuum cleaner, including a housing 120, a floor brush 130 and the above-mentioned cyclone separation structure, wherein the cyclone separation structure is installed in the housing 120, and a sewage inlet pipe 110 is provided in the housing 120 to connect with the air inlet duct 210. The axial direction of the filter cartridge 320 is consistent with the running direction of the floor brush. In order to facilitate observation of the storage capacity at the location where the cyclone separation structure of the vacuum cleaner 100 is installed, the location is usually set to be transparent, so as to facilitate observation of the dust storage capacity. By setting the axial direction of the filter cartridge 320 to be consistent with the running direction of the floor brush, the appearance of the vacuum cleaner 100 is relatively neat, and the aesthetics is improved.

[0032] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A cyclone separation structure of a vacuum cleaner, wherein the vacuum cleaner is provided with a sewage inlet pipe, and the cyclone separation structure is installed inside the vacuum cleaner, characterized in that: The cyclone separation structure comprises an air guide cover and a filter element, wherein the air guide cover is covered on one side of the filter element, the air guide cover is provided with an air inlet duct, and the air inlet end of the air inlet duct is sealed and connected with the sewage inlet pipe; an air outlet duct is provided on the upper side of the inner cavity of the filter element, and the air outlet end of the air inlet duct is connected with the air outlet duct; a filter cartridge is axially extended from the filter element, and a filter grille is provided on the filter cartridge, and the filter grille is spirally distributed, and the spiral direction is consistent with the air outlet direction of the air outlet duct, and the filter cartridge is connected to the inner cavity of the filter element; A cyclone cavity is formed between the filter cartridge and the side wall of the filter element. The airflow is output through the outlet of the air outlet duct and then cyclones along the cyclone cavity. After being filtered by the filter cartridge, the airflow enters the inner cavity of the filter element.

2. The cyclone separation structure of the vacuum cleaner according to claim 1, characterized in that: The portion of the filter cartridge connected to the outlet of the air outlet is a closed surface, and the closed surface gradually shrinks along the spiral direction of the filter grille.

3. The cyclone separation structure of the vacuum cleaner according to claim 1 or 2, characterized in that: The outer periphery of the filter cartridge is provided with a plurality of air guide plates which are arranged at intervals and distributed in a spiral manner to form the filter grid, and the size of the filter cartridge gradually decreases along the axial direction.

4. The cyclone separation structure of the vacuum cleaner according to claim 1, characterized in that: The upper side of the filter element forms communication ports at both ends of the air outlet duct, and the airflow entering the inner cavity of the filter element after filtering is output through the communication ports.

5. The cyclone separation structure of the vacuum cleaner according to claim 4, characterized in that: A filter sleeve is installed on the top of the filter element, an opening is arranged in the middle of the filter sleeve, and the opening is connected with the connecting port; the filter sleeve is provided with filter cotton or filter net at the opening.

6. The cyclone separation structure of the vacuum cleaner according to claim 1, characterized in that: A dust outlet is provided at the lower side of the outer wall of the filter element, and the dust outlet is connected to the inner cavity of the vacuum cleaner.

7. The cyclone separation structure of the vacuum cleaner according to claim 1, characterized in that: The air guide cover and the filter element are fixed by ultrasonic welding.

8. The cyclone separation structure of the vacuum cleaner according to claim 1, characterized in that: An arc-shaped plate extends from the outlet end of the air inlet duct, and an arc-shaped groove is provided at a corresponding position of the air outlet duct. When the air guide cover is connected to the filter element, the arc-shaped plate fits in the arc-shaped groove.

9. A vacuum cleaner, characterized in that: It comprises a shell, a floor brush and the cyclone separation structure according to any one of claims 1 to 8, wherein the cyclone separation structure is installed in the shell, and the shell is provided with the sewage inlet pipe for docking with the air inlet duct.

10. The vacuum cleaner according to claim 9, characterized in that: The axial direction of the filter cartridge is consistent with the running direction of the floor brush.

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