Vacuum cleaner and vacuum cleaner system

Abstract

A vacuum cleaner includes a dust cup defining a cyclone separation chamber inside thereof, the cyclone separation chamber having a dust outlet at a bottom of the dust cup, the dust cup having an openable bottom cover at the dust outlet; and a filter cartridge assembly installed in the cyclone separation chamber, the filter cartridge assembly including a bracket, a filter screen member attached to the bracket, and a dust blocking member at a lower side of the filter screen member, the dust blocking member having a deformable skirt made of a flexible material and deformed in a radial direction by a vacuum negative pressure applied to the cyclone separation chamber when the vacuum negative pressure exceeds a set value.

Description

Technical Field

[0001] This application relates to the field of clean technology, and in particular to vacuum cleaners and vacuum cleaner systems. Background Technology

[0002] Cyclone-type vacuum cleaners are widely used because they do not require consumables. When this type of vacuum cleaner is working, a vacuum motor creates negative pressure inside the dust cup, drawing in dust-laden air. The airflow then undergoes air-to-dust separation in the cyclone separation chamber inside the dust cup; solid debris is trapped in the cyclone separation chamber, while the filtered air flows out of the dust cup through the filter mesh on the filter element assembly.

[0003] In the above-mentioned types of vacuum cleaners, a skirt for dust blocking is often arranged in the middle of the cyclone separation chamber. The main function of the skirt is to prevent a large amount of solid waste after air-ash separation from returning to the filter mesh and clogging the mesh, thereby reducing the suction power.

[0004] In existing technologies, since the skirt hem is usually narrow at the top and wide at the bottom, trash falling directly above the skirt hem can easily accumulate there, forcing users to manually clean the trash at the skirt hem.

[0005] In addition, there is another type of vacuum cleaner with an automatic dust cup discharge mechanism, which relies on a vacuum cleaner base station similar to the one disclosed in CN220554477U for automatic dust discharge. During automatic dust discharge, the dust cup cover of the vacuum cleaner opens, and the vacuum cleaner base station uses the vacuum suction force applied to the cyclone separation chamber from the dust discharge port to suck the solid waste in the dust cup to the waste receiving component of the base station. However, due to the presence of the skirt, the skirt can easily become a blockage point for waste transfer. For example, waste from the filter screen has difficulty crossing the skirt and falling automatically to the dust discharge port. This untransferred waste easily accumulates at the skirt, forcing the user to manually clean this area. Summary of the Invention

[0006] To address the aforementioned technical problems, this application provides a vacuum cleaner with a skirt that prevents trash from accumulating there.

[0007] This application provides a vacuum cleaner, comprising: a dust cup, the inner side of which defines a cyclone separation chamber, the cyclone separation chamber having a dust discharge port located at the bottom of the dust cup, the dust cup having an openable bottom cover located at the dust discharge port; and a filter core assembly, the filter core assembly being installed in the cyclone separation chamber, the filter core assembly including a bracket, a filter screen component mounted on the bracket, and a dust-blocking component, the dust-blocking component being located below the filter screen component, the dust-blocking component having a deformable skirt, the deformable skirt being made of a flexible material and deforming radially under the action of the vacuum negative pressure when the vacuum negative pressure applied to the cyclone separation chamber exceeds a set value.

[0008] In the technical solution of this application, the deformable skirt is constructed to deform in the radial direction under the action of vacuum negative pressure. When the vacuum cleaner is working, the negative pressure environment in the cyclone separation chamber can be fully utilized to deform the deformable skirt, thereby producing a "shaking effect" on the deformable skirt. In this way, the garbage falling on the deformable skirt will slide off the deformable skirt during the deformation process, thereby preventing the garbage from accumulating at the skirt.

[0009] In the above technical solution, preferably, the bracket has a lower end face, the dustproof component has an upper mounting surface, and the upper mounting surface is fixedly disposed with the lower end face.

[0010] In the above technical solution, preferably, the filter element assembly further includes a pressing member, which presses the upper mounting surface onto the lower end surface from the lower side of the upper mounting surface.

[0011] In the above technical solution, preferably, the bracket has a columnar protrusion protruding downward relative to the lower end surface, and the columnar protrusion extends into the inner side of the deformable skirt.

[0012] In the above technical solution, preferably, the upper assembly surface is annular, and the columnar protrusion passes through the upper assembly surface.

[0013] In the above technical solution, preferably, the deformable skirt has a first axial height measured in the vertical direction, and the columnar protrusion has a second axial height measured in the vertical direction, wherein the second axial height is less than or equal to the first axial height.

[0014] In the above technical solution, preferably, the deformable skirt has a wrinkled outer circumferential surface.

[0015] In the above technical solution, preferably, the thickness of the deformable skirt is 0.6-1.2mm.

[0016] In the above technical solution, preferably, the flexible material includes silicone, rubber, and thermoplastic elastomer.

[0017] In the above technical solution, preferably, the dust-blocking component is a single component formed integrally.

[0018] In the above technical solution, preferably, the deformable skirt is configured to deform in the radial direction when the vacuum degree in the cyclone separation chamber is 10~25Kpa.

[0019] In the above technical solution, preferably, when the vacuum degree in the cyclone separation chamber is 15~25Kpa, the deformation amount of the deformable skirt in the radial direction is 2~15mm.

[0020] Other beneficial effects of this application will be explained later in conjunction with the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a vacuum cleaner provided in an embodiment of this application;

[0022] Figure 2 for Figure 1 A front sectional view of a vacuum cleaner in the image;

[0023] Figure 3 for Figure 2 An enlarged view at point A;

[0024] Figure 4 This application provides a schematic diagram of the structure of a filter element assembly;

[0025] Figure 5 for Figure 4 A cross-sectional schematic diagram of the filter element assembly is shown;

[0026] Figure 6 This is a schematic diagram of a dust-blocking component provided in an embodiment of this application. Detailed Implementation

[0027] To explain in detail the technical content, structural features, achieved objectives and effects of this application, the technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0028] In the following description, numerous specific details are set forth for illustrative purposes to provide a detailed description of various exemplary embodiments or implementations of this application. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, specific shapes, constructions, and characteristics of exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the concept of this application.

[0029] Reference Figure 1 and Figure 2 The illustration shows a vacuum cleaner 100 designed according to the technical solution of this application. The vacuum cleaner 100 is a portable handheld vacuum cleaner. The vacuum cleaner 100 includes a body 1 with a handle 11 and a suction tube 12, a dust cup 2 detachably mounted on the body 1, a vacuum motor 3 fixed inside the body 1, and a battery assembly 4 that powers the energy-consuming components of the vacuum cleaner 100. The suction tube 12, dust cup 2, and vacuum motor 3 are fluidly connected in sequence; when the vacuum motor 3 is activated, it generates a negative pressure inside the dust cup 2, thereby drawing dust-laden airflow from the suction tube 12 into the dust cup 2; solid waste is trapped inside the dust cup 2, and air flows to the outside of the dust cup 2 and enters the vacuum motor 3, and is finally discharged to the outside.

[0030] like Figure 2 As shown, the dust cup 2 is cylindrical, and its inner side defines a cyclone separation chamber 21 with a central axis X. The cyclone separation chamber 21 has a ash discharge port 211 located at the bottom 2 of the dust cup. The dust cup 2 has an openable bottom cover 22 located at the ash discharge port 211; when the openable bottom cover 22 is opened, the cyclone separation chamber 21 communicates with the outside, and the debris in the cyclone separation chamber 21 can be removed from the ash discharge port 211. A filter element assembly 5 is installed in the cyclone separation chamber 21 of the dust cup 2. This filter element assembly 5 can filter the air discharged from the cyclone separation chamber 21, so that the air flowing to the outside of the dust cup 2 is air filtered by the filter element assembly 5. The filter element assembly 3 is generally removable from the dust cup 2.

[0031] like Figure 4 , Figure 5 As shown, the filter element assembly 5 is a single, integral assembly that cannot typically be disassembled by the user after assembly. The filter element assembly 5 includes a support 51, a filter screen component 52 mounted on the support, and a dust-blocking component 53. The filter screen component 52 is a cylindrical filter screen, which is fixed by the support 51. The dust-blocking component 53 is mounted on the lower end of the support 51 and is located below the filter screen component 52.

[0032] like Figure 6As shown, the dust-blocking component 53 includes an annular upper mounting surface 531 and a deformable skirt 532 extending downward from the outer peripheral edge of the upper mounting surface 531, with its outer diameter gradually increasing from top to bottom. In this example, the dust-blocking component 53 is a single component integrally formed.

[0033] Combination Figure 2 , Figure 3 The lower end of the support 51 has a lower end face 511. The lower end face 511 is annular, and has a downwardly protruding columnar protrusion 512 in its middle.

[0034] The upper mounting surface 531 and the lower end surface 511 are fixedly disposed. In this example, the filter element assembly 5 also includes an annular pressing member 54, which presses the upper mounting surface 531 onto the lower end surface 511 from the lower side, and the pressing member 54, the upper mounting surface 531 and the lower end surface 511 are fixedly assembled together by a number of threaded fasteners.

[0035] The deformable skirt 532 is made of a flexible material, such as silicone, rubber, or thermoplastic elastomer. The deformable skirt 532 is configured to deform radially according to the magnitude of the vacuum suction force applied to the cyclone separation chamber 21; that is, when the vacuum negative pressure of the cyclone separation chamber 21 reaches a set value, the deformable skirt 532 deforms radially under the action of the vacuum negative pressure. Due to this radial deformation, the deformable skirt 532 produces a "shaking" effect, causing debris falling onto the deformable skirt 532 to fall off during the "shaking" process, thus preventing debris from accumulating on the deformable skirt 532.

[0036] In fact, since the vacuum negative pressure value of the cyclone separation chamber 21 is not a constant value, the radial deformation of the deformable skirt 332 will also change as the negative pressure value changes, and the "shaking" effect of the deformable skirt 332 will continue to occur.

[0037] For example, the deformable skirt 532 is configured such that when the vacuum level in the cyclone separation chamber 21 is 15~25 kPa, it deforms by 2~15 mm in the radial direction. The direction in which the skirt 532 vibrates is closer to the central axis. At this time, the debris accumulated on the skirt 532 can slide down into the cyclone separation chamber 21 of the dust cup 2.

[0038] A columnar protrusion 512 at the lower part of the bracket 51 extends into the inner side of the deformable skirt 532. This columnar protrusion 512 facilitates the entanglement of debris, effectively preventing debris from returning to the filter element 52 through the gap between the deformable skirt 532 and the inner wall of the dust cup 2. The deformable skirt 532 has a first axial height H1 measured in the vertical direction, and the columnar protrusion 512 has a second axial height H2 measured in the vertical direction. The second axial height H2 is less than or equal to the first axial height H1, preventing hair and other debris from entangled on the columnar protrusion 512. The columnar protrusion 512 can also be used as a handle for disassembling the filter element assembly.

[0039] The deformable skirt 532 preferably has a wrinkled outer circumferential surface; this helps to maintain the strength of the deformable skirt 532 while improving its deformability. To ensure the radial deformation of the deformable skirt 532, the thickness of the deformable skirt 532 can be selected as 0.6~1.2mm. Furthermore, the thickness of the deformable skirt 532 is related to the suction power of the vacuum motor 3. For example, some vacuum cleaners use vacuum motors with high suction power, and the thickness and / or material of the skirt must ensure that the skirt can vibrate during suction while preventing the skirt from folding upwards. Some vacuum cleaners use vacuum motors with relatively low suction power, and the thickness and / or material of the skirt must ensure that the skirt can vibrate normally during suction to avoid the accumulation of debris.

[0040] The dust-proof skirt design of this application can produce a radial deformation effect under vacuum negative pressure environment, thereby shaking off the dust falling on the skirt by using vacuum negative pressure, thus preventing the dust from accumulating on the skirt.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made without departing from the spirit and scope of this application. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.

Claims

1. A vacuum cleaner, characterized in that, The vacuum cleaner includes: A dust cup, the inner side of which defines a cyclone separation chamber, the cyclone separation chamber having a dust discharge port located at the bottom of the dust cup, and the dust cup having an openable bottom cover located at the dust discharge port; and A filter element assembly is installed in the cyclone separation chamber. The filter element assembly includes a support, a filter screen component mounted on the support, and a dust-blocking component. The dust-blocking component is located below the filter screen component and has a deformable skirt. The deformable skirt is made of a flexible material and deforms radially under the vacuum pressure applied to the cyclone separation chamber when the vacuum negative pressure is 10-25 kPa.

2. The vacuum cleaner according to claim 1, characterized in that, The bracket has a lower end face, and the dustproof component has an upper mounting surface, which is fixedly connected to the lower end face.

3. The vacuum cleaner according to claim 2, characterized in that, The filter element assembly further includes a crimping member, which crimps the upper mounting surface to the lower end surface from the lower side of the upper mounting surface.

4. The vacuum cleaner according to claim 2, characterized in that, The bracket has a columnar protrusion that protrudes downward relative to the lower end face and extends into the inside of the deformable skirt.

5. The vacuum cleaner according to claim 4, characterized in that, The upper assembly surface is annular, and the columnar protrusion passes through the upper assembly surface.

6. The vacuum cleaner according to claim 4, characterized in that, The deformable skirt has a first axial height measured in the vertical direction, and the columnar protrusion has a second axial height measured in the vertical direction, wherein the second axial height is less than or equal to the first axial height.

7. The vacuum cleaner according to claim 1, characterized in that, The deformable skirt has a wrinkled outer circumferential surface.

8. The vacuum cleaner according to claim 1, characterized in that, The thickness of the deformable skirt is 0.6-1.2 mm.

9. The vacuum cleaner according to claim 1, characterized in that, The flexible materials mentioned include silicone, rubber, and thermoplastic elastomers.

10. The vacuum cleaner according to claim 1, characterized in that, The dust-blocking component is a single component formed in one piece.

11. The vacuum cleaner according to claim 10, characterized in that, When the vacuum level in the cyclone separation chamber is 15 ~ 25 kPa, the deformation of the deformable skirt in the radial direction is 2 ~ 15 mm.

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