CN217109917U

CN217109917U - Filter screen self-cleaning device on air purifier

Info

Publication number: CN217109917U
Application number: CN202220874857.6U
Authority: CN
Inventors: 郭建刚; 莫其东; 杨杰
Original assignee: Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Current assignee: Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-08-02
Anticipated expiration: 2032-04-08

Abstract

The utility model discloses a filter screen self-cleaning device on air purifier, air purifier includes: fuselage and assemble annular filter screen subassembly in the fuselage, the filter screen subassembly includes: filter screen support and assemble the filter screen on filter screen support, still include: an automatic cleaning component acting on the filter screen component; the automatic cleaning assembly includes: the brush support is sleeved on the periphery of the filter screen assembly, and the brush and the driving mechanism are assembled on the brush support; the brush support is hung on the filter screen support; the driving mechanism drives the automatic cleaning assembly and the filter screen assembly to rotate relatively, and the brush sweeps across the surface of the filter screen to clean the surface of the filter screen; above-mentioned technical scheme simple structure, when the relative filter screen subassembly rotation of self-cleaning subassembly, clean filter screen surface automatically to the surface that can all-round clean filter screen effectively improves the life and the purification efficiency of filter screen.

Description

Filter screen self-cleaning device on air purifier

Technical Field

The utility model relates to an air purifier technical field, more specifically the filter screen self-cleaning device on air purifier that says so relates to.

Background

The air purifier is an electric appliance product which can effectively improve the air cleanliness and is divided into household, commercial, industrial and the like. Along with the quality of life is high, the use frequency of the air purifier is high, a purifying system on the air purifier is provided with a filter screen and runs for a long time, a layer of thick dust is adsorbed on the surface of the filter screen, if the thick dust is not cleaned in time, the air purifying effect and the service life of the filter screen are influenced, bacteria can be bred, and the air purifying efficiency cannot be reached, so that the filter screen needs to be cleaned regularly; the following two methods are commonly used for cleaning the filter screen: 1. the whole filter screen is removed from the air purifier, and is cleaned manually and periodically in a flapping and ash sweeping mode; 2. and after the whole filter screen is detached from the air purifier, a new filter screen is replaced.

The first mode needs to be cleaned regularly and manually, and is complex to clean; the second mode is to replace the filter screen with new one under the condition of recycling the filter screen, so that the resource is wasted; therefore, manufacturers began to develop an automatic cleaning filter structure, such as the structure disclosed in the chinese patent No.: 202023258899.7 discloses a multi-layer purifying fresh air purifier, which comprises a body and a primary filter screen, wherein a lead screw is arranged at the front side of the primary filter screen, a nut seat is connected onto the lead screw, a cleaning brush with a cavity is connected onto the nut seat, one end of the cleaning brush, which is far away from the nut seat, is rotatably connected with a fixed seat, a polishing rod is connected onto the fixed seat in a sliding manner, gear teeth are arranged at two ends of the cleaning brush, and a rack is arranged on a mounting rack; the screw rod drives the cleaning brush to move up and down, and the meshing of the gear teeth and the rack drives the cleaning brush to rotate to clean the primary filter screen; the patent technology mainly carries out automatic cleaning on a plate-shaped filter screen, and in the current household air purifier, an annular filter screen assembly is mostly applied, so that the applicant improves the prior art and provides an automatic filter screen cleaning device suitable for the annular filter screen assembly.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a filter screen self-cleaning device on air purifier.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a filter screen self-cleaning device on air purifier, air purifier includes: fuselage and assemble annular filter screen subassembly in the fuselage, the filter screen subassembly includes: filter screen support and assemble the filter screen on filter screen support, still include: an automatic cleaning component acting on the filter screen component; the automatic cleaning assembly includes: the brush support is sleeved on the periphery of the filter screen assembly, and the brush and the driving mechanism are assembled on the brush support; the brush support is hung on the filter screen support; the driving mechanism drives the automatic cleaning assembly and the filter screen assembly to rotate relatively, and the brush sweeps across the surface of the filter screen to clean the surface of the filter screen; above-mentioned technical scheme simple structure is applicable to the filter screen subassembly of loop configuration, and when the relative filter screen subassembly rotation of self-cleaning subassembly, it is automatic to clean filter screen surface to the surface of clean filter screen in all-round can effectively improve the life and the purification efficiency of filter screen.

In a further embodiment, the brush support is an annular framework; the brush is provided with at least one group along the direction parallel to the axis of the filter screen assembly, and the driving mechanism drives the brush support to rotate around the filter screen assembly; the shape of the brush support is matched with the filter screen assembly and is designed into an annular shape, and the brush support can be covered outside the filter screen assembly to enhance the stability of rotation; the brushes are distributed along the axis direction, so that after the brush support rotates for a circle, the brushes can completely sweep the outer wall of the filter screen for cleaning; in addition, the cleaning efficiency can be enhanced by increasing the number of brushes.

In a further embodiment, the screen support comprises: the filter screen is limited between the upper bracket and the lower bracket; the filter screen support is simple in structure and convenient to assemble.

In a further embodiment, the brush holder includes: the hairbrush is assembled on the supporting rod; the specific structure of the brush support is limited, the structure is simple, and the use of the filter screen assembly is not hindered.

In a further embodiment, the peripheral wall of the upper bracket extends outwards and horizontally to form a limiting rib; the brush support is sleeved outside the filter screen assembly, and the upper ring body is supported on the limiting ribs so that the brush support is hung on the filter screen assembly; the lower ring body is sleeved outside the lower bracket; this kind of mounting means makes the installation of brush support stable to it is more stable when the brush support is driven the rotation by actuating mechanism, can not produce to rock or rock very weak relatively the filter screen subassembly, vibration when reducing the use.

In a further embodiment, the upper surface of the lower bracket is provided with a dust collecting groove; the brush can be accommodated in the dust collecting groove after brushing the surface of the filter screen, and can collect the dust on the lower bracket to a designated place after taking out the filter screen assembly, so as to keep the interior of the machine body clean as much as possible.

In a further embodiment, the drive mechanism comprises: the brush support is provided with a driven gear, and the driving gear is meshed with the driven gear to drive the brush support to rotate around the filter screen assembly; the brush support is driven to rotate in a gear transmission mode, and the brush support is simple in structure and convenient to assemble.

In a further embodiment, a containing cavity for assembling the filter screen assembly is formed inside the machine body, a limiting convex rib is arranged on the inner bottom wall of the containing cavity, and the shape of the limiting convex rib is matched with the outer diameter of the filter screen bracket so as to limit the filter screen assembly; during the assembly, with filter screen subassembly and self-cleaning subassembly assembly back, wholly push and hold the intracavity, it is spacing through spacing protruding muscle, simple to operate.

In a further embodiment, the body is provided with a shell, and an air inlet and an air outlet are formed on the shell; fuselage internally mounted has the fan system, and when the fan system moves, with the air from the air intake suction, discharge after the air-out behind the filter screen subassembly, filter the air through the filter screen subassembly.

The utility model discloses a all the other useful technological effects embody in concrete implementation mode.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a combination view of a screen assembly and an automatic cleaning assembly;

FIG. 2 is a cross-sectional view of the combination of the screen assembly and the automatic cleaning assembly;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is an exploded view of the screen assembly and the automatic cleaning assembly;

FIG. 6 is a schematic view of an air purifier;

FIG. 7 is a cross-sectional view of an air purifier;

FIG. 8 is an exploded view of the air purifier;

FIG. 9 is an assembly view of the auto-cleaning assembly and the host machine.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In the description of the present application, it is to be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 6-9, an automatic cleaning device for a filter screen of an air cleaner includes: fuselage 100 and assemble the filter screen subassembly 200 in fuselage 100, fuselage 100 inside still install self-cleaning subassembly 300, self-cleaning subassembly 300 acts on filter screen subassembly 200, clears up filter screen subassembly 200.

Specifically, referring to fig. 1-5, the screen assembly 200 includes: a filter screen bracket 210 and a filter screen 220 mounted on the filter screen bracket 210, wherein the material of the filter screen 220 is not limited, but at least the filter screen can filter dust; the screen assembly 200 has a hollow barrel shape as a whole.

The automatic cleaning assembly 300 is sleeved outside the filter screen assembly 200, and the automatic cleaning assembly 300 comprises: a brush holder 310 fitted around the filter assembly 200, a brush 320 mounted on the brush holder 310, and a driving mechanism 330; the brush 320 contacts the surface of the filter screen 220, and when the driving mechanism 330 drives the automatic cleaning assembly 300 and the filter screen assembly 200 to rotate relatively, the brush 320 sweeps across the surface of the filter screen 220, and sweeps dust off the surface of the filter screen 220, thereby cleaning the filter screen 220.

Further, the automatic cleaning assembly 300 is fixed, and the screen assembly 200 is rotated by the driving mechanism 330; or the filter screen assembly 200 is fixed, and the automatic cleaning assembly 300 is driven by the driving mechanism 330 to rotate, so that the automatic cleaning assembly 300 and the filter screen assembly 200 can rotate relatively to each other, and the cleaning effect is realized; in the embodiment, the filter screen assembly 200 is limited to be mounted in the machine body 100 and cannot rotate, the driving mechanism 330 is mounted in the machine body 100, and the driving mechanism 330 drives the automatic cleaning assembly 300 to rotate, so as to clean the surface of the filter screen 220.

Further, the filter screen 220 may be a single-layer structure or a multi-layer structure, and has different settings according to different usage scenarios of the air purifier; the filter material in the prior art mainly comprises photocatalyst, active carbon, an electrode carbon core filter element technology, synthetic fiber, HEAP and the like, and can be selected according to actual requirements. When the filter screen 220 is a multi-layer structure, it can be formed by coaxially sleeving multiple layers of filter materials. Generally, in filtering, the outermost filter layer is used to filter large particle dust, and the inner filter layer has smaller particle diameter, so that the outermost filter layer collects most dust, and thus the outer wall of the filter screen 220 needs to be cleaned.

In one embodiment, the brush holder 310 is an annular frame, which can be sleeved outside the screen assembly 200 and does not prevent air from flowing through the screen 220; the brush 320 is arranged in a direction parallel to the axis of the filter screen assembly 200, and particularly, the brush 320 extends from the upper end to the lower end of the filter screen 220, so that when the brush holder 310 rotates, the brush 320 can completely sweep the whole surface of the filter screen 220, thereby effectively cleaning the surface of the filter screen 220 and sweeping dust;

the number of the brushes 320 is related to the cleaning efficiency, and the more the number of the brushes 320 is, the higher the cleaning efficiency is; however, the number of the brushes 320 should be set within a certain proper range, and if the number of the brushes 320 is too large, the shielding on the surface of the filter screen 220 is more, and the filtering effect of the filter screen 220 is affected by too many brushes 320; therefore, the number of brushes 320 should be preferably set in four groups;

specifically, in the present embodiment, the brushes 320 are provided in two groups, and the two groups are symmetrically provided; the brush holder 310 is rotated by 180 degrees, and the cleaning of the filter screen 220 is completed by the two sets of brushes 320; and the brush holder 310 rotates for a circle, the filter screen 220 is cleaned twice, and the cleaning efficiency is high and the speed is high.

In one embodiment, the screen support 210 includes: the annular upper support 211 and the annular lower support 212, when in installation, the filter screen 220 is pre-installed on the annular lower support 212, and then the annular upper support 211 is installed on the top of the filter screen; when the air filter is used, air enters from the outer peripheral side of the filter screen 220 and is exhausted upwards from the center of the filter screen assembly 200, and the air is filtered.

The brush holder 310 rotates around the strainer assembly 200 to clean the strainer 220, and after a limited number of cleanings and when the strainer 220 needs to be replaced, the brush holder 310 can be taken out upward to be separated from the strainer assembly 200, and then the upper holder 211 is removed, and the strainer 220 is taken out and replaced with a new strainer 220; alternatively, the brush holder 310 may be mounted to the outside of the new screen assembly 200 after the entire screen assembly 200 is completely replaced.

In one embodiment, the brush holder 310 includes: an upper ring 311, a lower ring 312, and a support rod 313 connected between the upper ring 311 and the lower ring 312, wherein the upper ring 311 is installed corresponding to the upper bracket 211, the lower ring 312 is installed corresponding to the lower bracket 212, and the brush 320 is installed on the support rod 313.

Specifically, as shown in fig. 3, the lower edge of the outer peripheral wall of the upper bracket 211 extends horizontally outward to form a limiting rib 2111, and the inner diameter of the upper ring 311 is the same as or substantially the same as the outer diameter of the upper bracket 311, so that after assembly, the upper ring 311 is sleeved outside the upper bracket 211 and supported on the limiting rib 2111, and the whole brush bracket 310 is hung on the filter screen assembly 200;

optionally, the limiting rib 2111 may be disposed in an overall annular shape, or may be disposed in a sectional shape, so as to support the brush holder 310.

As shown in fig. 4, the inner diameter of the lower ring 312 is equal to or substantially equal to the outer diameter of the lower bracket 212, so that the lower ring 312 can be sleeved outside the lower bracket 212, and is more stable during rotation without shaking or shaking slightly; the lower ring 312 is sleeved outside the lower bracket 212, and the height of the lower ring 312 is higher than the bottom surface of the lower bracket 212, so as to prevent friction between the bottom surface of the lower ring 312 and the inner bottom wall of the cavity 101 from affecting rotation, and to enable the subsequent screen assembly 200 to be positioned by being matched with the limiting rib 103.

It should be noted that the upper ring 311 is sleeved outside the upper bracket 211, the lower ring 312 is sleeved outside the lower bracket 212, and the upper ring 311 and the upper bracket 211, and the lower ring 312 and the lower bracket 212 are not tightly clamped, so as to prevent the rotation of the brush holder 310 relative to the filter assembly 200 from being affected.

Optionally, in order to enable the brush holder 310 to smoothly and smoothly rotate around the filter screen assembly 200, and reduce friction, a rotation-assisting structure, such as a ball, a roller, or the like, may be added between the limiting rib 2111 and the upper ring 311.

Further, the upper surface of the lower bracket 212 is provided with a dust collecting groove 2121, after the brush holder 310 is mounted on the filter screen assembly 200, the dust collecting groove 2121 is still exposed to the outside, when cleaning, dust can fall into the dust collecting groove 2121, when cleaning the air purifier, the filter screen assembly 200 is taken out, and after the lower bracket 212 is removed, the dust is poured into a designated place, so that the cleaning of the interior of the air purifier is reduced.

Furthermore, the brush holder 310 is provided with a middle ring, besides the upper ring 311 and the lower ring 312, which is located between the upper ring 311 and the lower ring 312 for connection, so that the whole brush holder 310 is more stable in structure; the arrangement of the middle rings is related to the overall size of the brush holder 310, and if the overall height of the brush holder 310 is not large, the design of the middle rings can be eliminated, and if the overall height of the brush holder 310 is too large, the arrangement of increasing the number of the middle rings can be considered.

Further, the brush 320 is mounted on the inner wall of the brush holder 310 and located on the support rod 313, as shown in fig. 3, the support rod 313 may be provided with an insertion slot, and the brush 320 may be inserted into the insertion slot for fixing.

In one embodiment, the driving mechanism 330 includes: the brush holder 310 is provided with a driven gear 314, and the driving gear 332 is engaged with the driven gear 314 to drive the brush holder 310 to rotate around the filter screen assembly 200.

The motor 331 is fixedly installed inside the machine body 100, the transmission gear 332 is fixedly installed on an output shaft of the motor 331 and is driven by the output shaft to rotate, the driven gear 314 can be arranged on the upper ring body 311, the lower ring body 312 or the middle ring, and the whole brush holder 310 can be driven to rotate by meshing the driven gear 314 with the transmission gear 332.

Specifically, the driven gear 314 is disposed on the upper ring body 311, and the outer wall of the upper ring body 311 forms an annularly distributed serration to form the driven gear 314, and the tooth gap of the serration does not penetrate through the bottom surface of the upper ring body 311, so that the upper ring body 311 can still be stably supported on the limiting rib 2111.

In one embodiment, the body 100 includes: the shell 110, the middle frame 120, the base 130 and the fan system 140 are divided into a cavity 101 for assembling the filter screen assembly 200 and an air cavity 102 for assembling the fan system 140 by the middle frame 120, and the air cavity 102 is located above the cavity 101 and is communicated with the cavity 101.

The peripheral wall of the housing 110 corresponding to the cavity 101 is provided with an air inlet, the top of the housing 110 is provided with an air outlet, when the fan system 140 operates, air drawn in from the air inlet is filtered by the filter screen 220, and then purified air is discharged from the air outlet, so that the purpose of air purification is achieved.

Further, a gap is formed between the outer shell 110 and the middle frame 120, the motor 331 is installed in the gap, and an output shaft of the motor 331 extends downwards through the middle frame 120 to connect with the transmission gear 332; the motor 331 is not located in the cavity 101, so that the motor 331 is prevented from being influenced by dust.

Furthermore, the housing 110 is provided with a detachable door panel 111, after the door panel 111 is detached, the cavity 101 is exposed, and the filter screen assembly 200 is integrally pushed into the cavity 101 during installation or pulled out of the cavity 101 during detachment; the door panel 111 and the outer shell 110 may be assembled by a snap fit, and the door panel 111 may be provided with a handle/a drawer for easy detachment.

A limiting convex rib 103 is arranged on the inner bottom wall of the cavity 101, the shape of the limiting convex rib 103 is matched with the outer diameter of the filter screen bracket 210, and when the filter screen assembly 200 is pushed to be abutted against the limiting convex rib 103, the installation is proved to be in place, and the filter screen assembly cannot be pushed in any more; the limiting convex rib 103 can be provided with multiple segments in a sectional manner.

Further, a control circuit board is arranged inside the main body 100, a control panel 150 is arranged on the surface of the main body 100, the operation of the fan system 140 can be controlled through the control panel 150, and the operation of the motor 331 can be controlled through the control panel 150;

alternatively, the motor 331 can be controlled by the control panel 150 to operate at a timing, such as: when the running time of the fan system 140 is up to X hours, the motor 331 runs, and after the running time Xmin, the motor 331 automatically stops, and the automatic cleaning component 300 rotates to clean the filter screen 220; for another example: when the running time of the fan system 140 is full of Xh, the motor 331 runs to drive the automatic cleaning assembly 300 to rotate for X circles, so as to clean the filter screen 220.

The utility model discloses well self-cleaning subassembly 300 dismouting is all very convenient, when 100 dismouting for the fuselage: the automatic cleaning assembly 300 is pre-installed on the screen assembly 200 and then pushed into or pulled out of the cavity 101 along with the screen assembly 200; the driven gear 314 is automatically engaged with or disengaged from the driving gear 332 when the screen assembly 200 is removed and installed.

When the self-cleaning assembly 300 is disassembled from the screen assembly 200: when the filter screen assembly is installed, the upper ring body 311 is supported on the limiting ribs 2111 by being sleeved outside the filter screen assembly 200 from top to bottom; when the brush holder 310 is disassembled, the brush holder 310 is drawn out upward relative to the filter screen assembly 200, so that the disassembly and the assembly are very convenient, and the use is convenient.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic cleaning device for a filter screen on an air purifier, the air purifier comprising: fuselage (100) and assemble annular filter screen subassembly (200) in fuselage (100), filter screen subassembly (200) include: filter screen support (210) and assemble filter screen (220) on filter screen support (210), its characterized in that: further comprising: a self-cleaning assembly (300) acting on the sieve assembly (200); the automatic cleaning assembly (300) comprises: a brush holder (310) sleeved on the periphery of the filter screen assembly (200), a brush (320) assembled on the brush holder (310), and a driving mechanism (330); the brush support (310) is hung on the filter screen support (210); the driving mechanism (330) drives the automatic cleaning component (300) and the filter screen component (200) to rotate relatively, and the brush (320) sweeps the surface of the filter screen (220) to clean the surface of the filter screen (220).

2. The automatic cleaning device for the filter screen of the air purifier according to claim 1, wherein: the brush support (310) is an annular framework; the brush (320) is provided with at least one group along the axis direction parallel to the filter screen assembly (200), and the driving mechanism (330) drives the brush support (310) to rotate around the filter screen assembly (200).

3. The automatic cleaning device for the filter screen of the air purifier according to claim 1 or 2, wherein: the screen holder (210) comprises: the filter screen comprises an annular upper bracket (211) and an annular lower bracket (212), wherein the filter screen (220) is limited between the upper bracket (211) and the lower bracket (212).

4. The automatic cleaning device for the filter screen of the air purifier according to claim 3, wherein: the brush holder (310) includes: the hair brush comprises an upper ring body (311), a lower ring body (312) and a supporting rod (313) connected between the upper ring body (311) and the lower ring body (312), wherein the hair brush (320) is assembled on the supporting rod (313).

5. The automatic cleaning device for the filter screen of the air purifier according to claim 4, wherein: the peripheral wall of the upper bracket (211) extends outwards and horizontally to form a limiting rib (2111); the hairbrush support (310) is sleeved outside the filter screen assembly (200), and the upper ring body (311) is supported on the limiting rib (2111) so that the hairbrush support (310) is hung on the filter screen assembly (200); the lower ring body (312) is sleeved outside the lower support (212).

6. The automatic cleaning device for the filter screen of the air purifier according to claim 3, wherein: the upper surface of the lower bracket (212) is provided with a dust collecting groove (2121).

7. The automatic cleaning device for the filter screen of the air purifier according to claim 2, wherein: the drive mechanism (330) comprises: the automatic filter screen assembly comprises a motor (331) and a transmission gear (332) assembled on an output shaft of the motor (331), wherein a driven gear (314) is arranged on a hairbrush support (310), and the transmission gear (332) is meshed with the driven gear (314) to drive the hairbrush support (310) to rotate around the filter screen assembly (200).

8. The automatic cleaning device for the filter screen of the air purifier according to claim 1, wherein: the filter screen assembly is characterized in that a containing cavity (101) for assembling the filter screen assembly is formed inside the machine body (100), a limiting convex rib (103) is arranged on the inner bottom wall of the containing cavity (101), and the shape of the limiting convex rib (103) is matched with the outer diameter of the filter screen support (210) so as to limit the filter screen assembly (200).

9. The automatic cleaning device for the filter screen of the air purifier according to claim 1, wherein: the machine body (100) is provided with a shell (110), and an air inlet and an air outlet are formed on the shell (110); a fan system (140) is arranged in the body (100).