Automatic filter screen cleaning device and air purifier

Abstract

The application discloses an automatic filter screen cleaning device and an air purifier, which comprise a dust removal part, wherein the dust removal part is in surface contact with the filter screen and forms a preset inclination angle with the filter screen, the dust removal part rotates to clean the surface of the filter screen, and the rotation path profile of the dust removal part covers the surface of the filter screen; a driving mechanism provides driving force to drive the dust removal part to rotate around the filter screen. The dust removal part and the driving mechanism are matched to realize the function of automatically cleaning dust on the surface of the filter screen, and improve the purification effect and service life of the whole machine and the filter screen.

Description

Technical Field

[0001] This invention relates to the field of air purifier technology, and in particular to an automatic filter cleaning device and an air purifier. Background Technology

[0002] Currently, most filter-type air purifiers on the market have a pre-filter with larger gaps on the air inlet surface of the high-efficiency filter. This pre-filter filters out large particles such as dust, hair, sand, and pollen from the air, preventing them from entering the high-efficiency filter, reducing the burden on the filter, and extending its service life.

[0003] After a period of use, the air resistance increases due to the primary filter trapping too many large particles, affecting the overall purification effect of the machine and the performance and lifespan of the high-efficiency filter. Therefore, it is necessary to add an automatic filter cleaning device to clean the large particles on the surface of the primary filter without affecting the overall performance of the machine. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this invention is to provide an automatic filter cleaning device and an air purifier, which solves the technical problem that after long-term use, large particles such as dust, hair, sand, and pollen accumulate on the surface of the existing primary filter, affecting the purification effect and the use effect of the filter.

[0005] The technical solution adopted by this invention to solve its technical problem is: an automatic filter cleaning device and an air purifier, comprising:

[0006] The dust removal component is in close contact with the surface of the filter screen and forms a preset tilt angle with the filter screen. The dust removal component rotates to clean the surface of the filter screen, and the rotation path contour of the dust removal component covers the surface of the filter screen.

[0007] A drive mechanism that provides driving force to rotate the dust removal component around the filter screen.

[0008] As a further improvement of the present invention: the side of the dust removal component that contacts the surface of the filter screen is provided with soft rubber or a brush.

[0009] As a further improvement of the present invention, it also includes a fixed bracket and a rotating wheel, the rotating wheel being connected to a drive mechanism, the drive mechanism driving the rotating wheel to rotate around the filter screen, the fixed bracket being mounted on the rotating wheel, and the other side of the dust removal component being disposed on the fixed bracket.

[0010] As a further improvement of the present invention, it also includes a chassis assembly, the chassis assembly including a base and a dust collection mechanism, the base having a dust collection hole connected to one end of a dust removal component, and the dust collection mechanism being used to suck up the dust collected by the dust collection hole.

[0011] As a further improvement of the present invention: the dust collection mechanism includes a first dust collection pipe, a second dust collection pipe, a dust collection box and a dust collection motor. One end of the first dust collection pipe is connected to a dust collection hole, and the other end of the first dust collection pipe is connected to the dust collection box. The dust collection motor is connected to the dust collection box through the second dust collection pipe.

[0012] As a further improvement of the present invention, it also includes a base, on which the filter screen is fixedly installed, and the rotating wheel is disposed on the outer periphery of the base.

[0013] As a further improvement of the present invention: a dust collection protrusion is provided on the lower side of the fixed bracket. The dust collection protrusion is in contact with the base and is located in the opposite direction to the rotation direction of the dust removal component. The dust collection protrusion is used to collect the dust that falls on the dust removal component and then discharge it through the dust collection hole.

[0014] As a further improvement of the present invention: the fixed bracket is provided with a dust baffle plate, the dust baffle plate has an arc-shaped structure, and the shape of the dust baffle plate is adapted to the dust removal component.

[0015] As a further improvement of the present invention: the driving mechanism includes a stepper motor, the output shaft of which is connected to the rotating wheel.

[0016] As a further improvement of the present invention: an automatic filter cleaning device, comprising:

[0017] A dust removal component is attached to the surface of a filter screen, and the dust removal component and the filter screen form a preset tilt angle;

[0018] A driving mechanism provides driving force to rotate the filter screen relative to the dust removal component, so that the dust on the surface of the filter screen is scraped away by the dust removal component and falls to the lower part of the dust removal component.

[0019] The present invention also provides an air purifier, including an automatic filter cleaning device as described above.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This invention uses a dust removal component that forms a preset tilt angle with the filter screen surface. A drive mechanism drives the dust removal component to rotate around the filter screen, thereby automatically cleaning the dust deposited on the filter screen surface and improving the purification effect and service life of the whole machine and the filter screen. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an automatic filter cleaning device according to the present invention.

[0023] Figure 2 This is a schematic diagram of the chassis assembly and filter screen after disassembly according to the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the present invention after the fixing bracket and filter screen are separated.

[0025] Figure 4 This is a bottom view of an automatic filter cleaning device according to the present invention.

[0026] 1. Dust removal components; 101. Brush; 2. Drive mechanism; 3. Filter screen; 4. Fixed bracket; 41. Dust collection protrusion; 42. Dust baffle; 5. Rotary wheel; 6. Base; 61. Dust collection hole; 7. Dust suction mechanism; 71. First dust collection pipe; 72. Dust collection box; 73. Second dust collection pipe; 74. Dust suction motor; 8. Base. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In order to solve the technical problems in the prior art, the present invention will now be further described in conjunction with the accompanying drawings and embodiments:

[0030] Example 1

[0031] like Figures 1-4 As shown, this embodiment discloses an automatic filter cleaning device, including:

[0032] Dust removal component 1 is in contact with the surface of filter screen 3. Dust removal component 1 forms a preset tilt angle with filter screen 3. Dust removal component 1 rotates to clean the surface of filter screen 3. The rotation path contour of dust removal component 1 covers the surface of filter screen 3.

[0033] The driving mechanism 2 is connected to the dust removal component 1, and the driving mechanism 2 provides driving force to drive the dust removal component 1 to rotate around the filter screen 3.

[0034] Specifically, one end of the dust removal component 1 contacts the lower side of the filter screen 3, and the other end of the dust removal component 1 contacts the upper side of the filter screen 3. At the same time, the dust removal component 1 and the filter screen 3 form a certain inclined angle and are arranged relatively vertically. The inclined arrangement of the present invention increases the contact area between the dust removal component 1 and the filter screen 3, thereby increasing the dust removal area of ​​the dust removal component 1.

[0035] In this embodiment, the driving mechanism 2 drives the dust removal component 1 to rotate 360° around the filter screen 3, so that the contour formed by the rotation path of the dust removal component 1 covers the surface of the filter screen 3, thereby realizing the function of the dust collector scraping away the dust on the surface of the filter screen 3, thus improving the service life of the whole machine and the filter screen.

[0036] For filter-type air purifiers, after long-term use of filter 3, the automatic filter cleaning device of this embodiment cleans the dust, hair, sand, sand and other large particles deposited on the surface of filter 3. Without affecting the overall performance of the machine, the filter surface is cleaned regularly, which improves the service life of the machine and eliminates the health hazards to consumers caused by secondary pollution.

[0037] Example 2

[0038] like Figures 1-4 As shown, this embodiment discloses an automatic filter cleaning device, including:

[0039] Dust removal component 1 is in contact with the surface of filter screen 3, and the dust removal component 1 and the filter screen 3 form a preset tilt angle. The dust removal component 1 rotates to clean the surface of filter screen 3, and the rotation path contour of the dust removal component 1 covers the surface of filter screen 3.

[0040] The driving mechanism 2 is connected to the dust removal component 1, and the driving mechanism 2 provides driving force to drive the dust removal component 1 to rotate around the filter screen 3.

[0041] Preferably, the dust removal component 1 has a curved structure so as to fit against the surface of the cylindrical filter screen 3 and ensure the cleaning effect.

[0042] Because there is an angle between the dust removal component 1 and the filter screen 3, that is, the dust removal component 1 is inclined relative to the filter screen 3, unlike some existing dust removal components 1 and filter screen 3 which are parallel to each other. The contact area between the parallel dust removal component 1 and the filter screen 3 is smaller than the contact area between the inclined dust removal component 1 and the filter screen 3.

[0043] The inclined arrangement of the dust collector 1 in this embodiment increases the contact area with the filter screen 3, and at the same time facilitates the collection of dust swept off the filter screen 3 into the lower part of the dust collector 1 along the inclined direction, thereby improving cleaning efficiency.

[0044] The width of the dust removal component 1 is related to the rotational speed and tilt angle of the dust removal component 1 based on the driving force provided by the driving mechanism.

[0045] Preferably, the side of the dust removal component 1 that contacts the surface of the filter screen 3 is provided with soft rubber or a brush 101.

[0046] In this embodiment, the soft rubber or brush 101 on one side of the dust removal component 1 rotates and scrapes away the dust on the surface of the filter screen 3. Since the soft rubber or brush 101 forms a certain tilt angle with the surface of the filter screen 3, the scraped-off dust is blocked by the dust removal component 1 and subjected to gravity, and then detaches from the surface of the filter screen 3. Under the tilting and guiding action of the dust removal component 1, the dust is concentrated at the lower part of the dust removal component 1.

[0047] Preferably, it also includes a chassis assembly, which includes a base 6 and a dust collection mechanism 7. The base 6 is provided with a dust collection hole 61, which is connected to one end of the dust removal component 1. The dust collection mechanism 7 is used to suck up the dust collected by the dust collection hole 61.

[0048] In this embodiment, after the dust removal component 1 rotates and scrapes away the dust on the surface of the filter screen 3 and concentrates it at the lower part, one end (lower part) of the dust removal component 1 is connected to the dust collection hole 61 during the rotation process, and then the dust is sucked away by the dust suction mechanism 7.

[0049] It should be noted that the dust collection hole 61 can be a round hole, an arc-shaped hole, a square hole, etc., which will not be listed one by one in this embodiment. In addition, multiple dust collection holes 61 can be provided on the base 6.

[0050] In this embodiment, the dust collection hole 61 can also be configured as an annular hole.

[0051] More preferably, the dust collection mechanism 7 includes a first dust collection pipe 71, a second dust collection pipe 73, a dust collection box 72, and a dust collection motor 74. One end of the first dust collection pipe 71 is connected to the dust collection hole 61, and the other end of the first dust collection pipe 71 is connected to the dust collection box 72. The dust collection motor 74 is connected to the dust collection box 72 through the second dust collection pipe 73, and the dust collection motor 74 is mounted on the base 6.

[0052] In this embodiment, dust concentrated at the lower part of the dust removal component 1 is attracted by the airflow in the dust collection hole 61 when it approaches the dust collection hole 61 on the base 6, and automatically enters the dust collection box 72. The airflow is generated by the vacuum motor 74 through the second dust collection pipe 73. When the whole machine is in the filter dust removal mode, the inside of the dust collection box 72 is formed by the action of the vacuum motor 74 and the second dust collection pipe 73, thereby collecting the dust at the dust collection hole 61 into the dust collection box 72.

[0053] After the machine completes automatic dust removal, remove the dust collection box 72 and clean out large particles such as dust, hair, sand, and pollen inside to prepare for the next startup.

[0054] Preferably, it also includes a fixed bracket 4 and a rotating wheel 5. The rotating wheel 5 is connected to the drive mechanism 2. The drive mechanism 2 drives the rotating wheel 5 to rotate around the filter screen 3. The fixed bracket 4 is installed on the rotating wheel 5. The other side of the dust removal component 1 is provided on the fixed bracket 4.

[0055] In this embodiment, the driving mechanism 2 includes a stepper motor, the output shaft of which is connected to the rotating wheel 5. The stepper motor is mounted on the base 6 and drives the rotating wheel 5 to rotate, thereby driving the dust removal component 1 to rotate and achieving the function of cleaning the filter screen 3.

[0056] Preferably, the rotating wheel 5 is disposed on the outer periphery of the filter screen 3, and the filter screen 3 is cylindrical.

[0057] Example 3

[0058] like Figures 1-4 As shown, this embodiment discloses an automatic filter cleaning device, including:

[0059] The difference between this embodiment and Embodiment 2 is as follows:

[0060] Preferably, it also includes a base 8, the filter screen 3 is fixedly installed on the base 8, and the rotating wheel 5 is disposed on the outer periphery of the base 8.

[0061] The diameter of the base 8 is smaller than that of the rotating wheel 5. The base 8 is located on the inner circumference of the rotating wheel 5 and is also mounted on the base 6. The fixed bracket 4 is located on the outer circumference of the filter screen 3. Under the action of the driving mechanism 2, it rotates around the outer circumference of the filter screen 3, driving the dust removal component 1 to rotate and clean the dust on the surface of the filter screen 3.

[0062] More preferably, the fixed bracket 4 is provided with a dust baffle 42, which has an arc-shaped structure and is adapted to the shape of the dust removal component 1, that is, the dust baffle 42 and the filter screen 3 also form a certain angle.

[0063] One end (lower part) of the dust removal component 1 or the dust baffle 42 is close to the dust collection hole 61, which plays a good guiding role and facilitates the collection of dust.

[0064] More preferably, the lower side of the fixed bracket 4 is provided with a dust collection protrusion 41, which is in contact with the base 6. The dust collection protrusion 41 is located in the opposite direction to the rotation direction of the dust removal component 1. The dust collection protrusion 41 is used to collect the dust that falls on the dust removal component 1 and then discharge it through the dust collection hole 61.

[0065] Specifically, the dust collection protrusion 41 is fitted and connected to the upper end of the base 6, and the dust collection protrusion 41 is located below the dust removal component 1. The base 6 has an installation groove, and the rotating wheel 5 is located in the installation groove. The dust collection protrusion 41 has an arc-shaped structure that matches the outer contour of the installation groove of the base 6.

[0066] More preferably, the dust collection protrusion 41 is made of soft rubber.

[0067] In this embodiment, when the dust removal component 1 rotates to clean the dust on the surface of the filter screen 3, some of the dust on the filter screen 3 falls onto the base. The dust collection protrusion 41 also rotates together with the dust removal component, concentrating the dust that falls onto the base 6 into the vicinity of the dust collection hole 61. At the same time, it also receives some of the dust that falls from the dust removal component 1. When the integrated protrusion 41 reaches the position of the dust collection hole 61, it enters the dust collection box 73 under the action of the vacuum motor 74.

[0068] Example 4

[0069] like Figures 1-4 As shown, this embodiment discloses an automatic filter cleaning device, including:

[0070] Dust removal component 1, the dust removal component 1 is in contact with the surface of filter screen 3, and the dust removal component 1 and the filter screen 3 form a preset tilt angle;

[0071] The driving mechanism 2 is connected to the filter screen 3. The driving mechanism 2 provides driving force to drive the filter screen 3 to rotate relative to the dust removal component 1, so that the dust on the surface of the filter screen 3 is scraped away by the dust removal component 1 and falls to the lower part of the dust removal component 1.

[0072] Because there is an angle between the dust removal component 1 and the filter screen 3, that is, the dust removal component 1 is inclined relative to the filter screen 3, unlike some existing dust removal components 1 and filter screen 3 which are parallel to each other. The contact area between the parallel dust removal component 1 and the filter screen 3 is smaller than the contact area between the inclined dust removal component 1 and the filter screen 3.

[0073] Preferably, it also includes a base 8, the filter screen 3 is fixedly installed on the base 8, and the rotating wheel 5 is disposed on the outer periphery of the base 8.

[0074] Preferably, the drive mechanism 2 includes a stepper motor, the output shaft of which is connected to the base 8. The stepper motor drives the base to rotate, thereby driving the filter screen 3 to rotate.

[0075] Except for the connection between the drive mechanism 2 and the filter screen 3 in this embodiment, which is different from the connection between the drive mechanism 2 and the dust removal component 1 in embodiments 1-3, the rest of the structure is the same as in embodiments 1-3.

[0076] When the dust collection mechanism 7 is working, the dust collection hole 61 is always connected to the lower part of the dust removal component 1, and the dust is sucked into the dust collection box 72 by the dust collection hole 61, which is different from the intermittent connection between the lower part of the dust removal component 1 and the dust collection hole 72 in embodiments 1-3.

[0077] Example 5

[0078] Based on the same inventive concept, the present invention also provides an air purifier, including an automatic filter cleaning device using any one of the above embodiments 1-4.

[0079] The main function of this invention is to automatically clean the dust on the surface of the filter screen by combining the dust removal component and the drive mechanism, thereby improving the purification effect and service life of the whole machine and the filter screen.

[0080] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An automatic filter cleaning device, characterized in that, include: The dust removal component is in close contact with the surface of the filter screen and forms a preset tilt angle with the filter screen. The dust removal component rotates to clean the surface of the filter screen, and the rotation path contour of the dust removal component covers the surface of the filter screen. A driving mechanism provides a driving force to drive the dust removal component to rotate around the filter screen, or the driving mechanism provides a driving force to drive the filter screen to rotate relative to the dust removal component, so that the dust on the surface of the filter screen is scraped away by the dust removal component and falls to the lower part of the dust removal component. It also includes a fixed bracket and a rotating wheel. The rotating wheel is connected to a drive mechanism, which drives the rotating wheel to rotate around the filter screen. The fixed bracket is mounted on the rotating wheel, and the other side of the dust removal component is located on the fixed bracket. It also includes a chassis assembly, which comprises a base and a dust collection mechanism. The base has a dust collection hole that communicates with one end of a dust removal component. The dust collection mechanism is used to extract the dust collected through the dust collection hole. The lower side of the fixed bracket is provided with a dust collection protrusion, which is in contact with the base. The dust collection protrusion is located in the opposite direction to the rotation direction of the dust removal component. The dust collection protrusion is used to collect the dust that falls on the dust removal component and then discharge it through the dust collection hole.

2. The automatic filter cleaning device according to claim 1, characterized in that, The side of the dust removal component that contacts the filter screen surface is provided with soft rubber or a brush.

3. The automatic filter cleaning device according to claim 1, characterized in that, The dust collection mechanism includes a first dust collection pipe, a second dust collection pipe, a dust collection box, and a dust collection motor. One end of the first dust collection pipe is connected to a dust collection hole, and the other end of the first dust collection pipe is connected to the dust collection box. The dust collection motor is connected to the dust collection box through the second dust collection pipe.

4. The automatic filter cleaning device according to claim 1, characterized in that, It also includes a base, on which the filter screen is fixedly installed, and on which the rotating wheel is located on the outer periphery of the base.

5. The automatic filter cleaning device according to claim 1, characterized in that, The fixed bracket is equipped with a dust baffle plate, which has an arc-shaped structure and is adapted to the shape of the dust removal component.

6. An air purifier, characterized in that, This includes an automatic filter cleaning device as described in any one of claims 1-5.

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