Dual-motor system with airflow adjusting function and air purifier

Abstract

The invention discloses a dual-motor system with an airflow adjusting function and an air purifier. The dual-motor system comprises a purification shell; double motors; the detection module is used for detecting floating hair outside the purification shell to obtain a detection result; and the first determination module is used for determining the working power of the double motors based on the detection result. A double-air-duct and double-wind-wheel form is adopted, so that the absorption efficiency and the absorption effect of the floating hair are improved. Meanwhile, floating hair outside the purification shell is detected, the corresponding air speed is switched according to the floating hair amount, and the floating hair absorption efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air purifiers, and in particular to a dual-motor system with an airflow regulating function and an air purifier. Background Art

[0002] At present, with the continuous increase of the population living alone and the deepening of social pressure, people are increasingly in need of companionship and spiritual comfort, so the demand for pets is growing. As we all know, cats and dogs are the most common pets in daily life, but they also shed the most hair. Pet hair has harm to the human body that cannot be ignored, such as irritation and allergic reactions to the respiratory tract, eyes, and skin, as well as potential risks of microbial transmission. Therefore, for pet air purifiers, it is very important to fully absorb pet hair in the environment and automatically clean the hair on the collection filter.

[0003] At present, most pet air purifiers on the market are in the form of a single air duct and a single wind wheel, and the pet hair absorption position is generally located around the lower half of the product (poor absorption effect on high hair), around a single side (poor absorption effect on the other 3 sides and the floor), and on both sides (poor absorption effect on the other 2 sides and the floor). There are inevitable absorption dead angles and short effective absorption distances, and it is impossible to achieve effective all-round absorption of hair. At the same time, the existing air purifiers absorb floating hair at a relatively constant rate, and cannot detect the floating hair outside the purification shell, nor can they switch to the corresponding wind speed according to the amount of floating hair, which reduces the absorption efficiency of floating hair. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, the first object of the present invention is to propose a dual-motor system with airflow adjustment function, which is arranged in a dual-air duct and dual-wind wheel form to improve the absorption efficiency and adsorption effect of floating hair. At the same time, the floating hair outside the purification shell is detected, and the corresponding wind speed is switched according to the amount of floating hair, which further improves the absorption efficiency of the floating hair.

[0005] The second object of the present invention is to provide an air purifier.

[0006] To achieve the above objectives, the first embodiment of the present invention proposes a dual-motor system with airflow regulation function, comprising:

[0007] Purify the shell;

[0008] Dual motors are arranged inside the purification housing;

[0009] The detection module is arranged outside the purification housing and is used to detect the floating hair outside the purification housing and obtain the detection result;

[0010] The first determination module is used to determine the working power of the dual motors based on the detection results.

[0011] According to some embodiments of the present invention, air inlet holes are provided on the side and bottom of the purification housing; an air duct system is provided inside the purification housing;

[0012] The dual motors operate at a determined working power, and based on the air inlet holes and air duct system, the air with floating hair is sucked into the interior of the purification shell.

[0013] According to some embodiments of the present invention, the purification housing includes an upper housing and a lower housing; wherein a first air inlet hole is disposed on a side of the upper housing; and a second air inlet hole is disposed on a side and a bottom of the lower housing;

[0014] The air duct system includes an upper air duct system and a lower air duct system, wherein the upper air duct system is arranged inside the upper shell body, and the lower air duct system is arranged inside the lower shell body;

[0015] The dual motor includes a first motor and a second motor; the first motor draws air with floating hair into the interior of the upper shell based on the first air inlet hole and the upper air duct system; the second motor draws air with floating hair into the interior of the lower shell based on the second air inlet hole and the lower air duct system.

[0016] According to some embodiments of the present invention, the detection module includes:

[0017] A shooting module, used for shooting an image of the environment outside the purification housing;

[0018] The second determination module is used to determine the edge area of ​​the environment image and obtain the pixel mean of all pixels in the edge area; calculate the difference according to the pixel mean of the edge area of ​​the environment images of adjacent frames, and when it is determined that the difference is less than a preset difference, fuse the environment images of adjacent frames to obtain a panoramic image;

[0019] The third determination module is used to:

[0020] Grayscale processing is performed on the panoramic image to determine the grayscale values ​​of the pixels in the panoramic image, and a preset grayscale threshold is used for comparison to determine the number of pixels whose grayscale values ​​are greater than the preset grayscale threshold;

[0021] According to the number of pixels whose grayscale values ​​are greater than a preset grayscale threshold and the number of pixels included in the panoramic image, ratio information is determined as a detection result.

[0022] According to some embodiments of the present invention, a comparison module is further included, which is used to:

[0023] Before the third determination module performs grayscale processing on the panoramic image, a fusion evaluation value W of the panoramic image is calculated;

[0024]

[0025] Wherein, m is the length of the panoramic image; n is the width of the panoramic image; F(i,j) is the pixel value at (i,j) in the panoramic image; F(i,j-1) is the pixel value at (i,j-1) in the panoramic image; F(i-1,j) is the pixel value at (i-1,j) in the panoramic image;

[0026] The fusion evaluation value is compared with the preset fusion threshold. When it is determined that the fusion evaluation value is greater than the preset fusion threshold, it means that the fusion process of the panoramic image is qualified; otherwise, it means that the fusion process of the panoramic image is unqualified and needs to be re-fused.

[0027] According to some embodiments of the present invention, the purification housing further includes a filter screen disposed inside for filtering the air with floating hair.

[0028] According to some embodiments of the present invention, the present invention further comprises: an alarm module, configured to:

[0029] A plurality of flow velocity information is obtained based on a plurality of flow velocity sensors arranged at the lower part of the filter screen, and a flow velocity root mean square value σ is calculated according to the plurality of flow velocity information;

[0030]

[0031] Where n is the number of flow velocity information; v i is the i-th flow rate information; is the average flow velocity obtained based on n flow velocity information;

[0032] When it is determined that the flow rate root mean square value is less than a preset flow rate root mean square threshold value, calculating the pressure drop P of the filter;

[0033]

[0034] Where, λ is the viscosity coefficient of the air with floating hair passing through the filter; S 1 is the preset unit area of ​​the filter; L 1 is the pore size of the filter; L 2 is the thickness of the filter; H is the thickness of the floating hair attached to the filter; V is the preset unit volume of the filter; S 2 is the cross-sectional area of ​​the floating hair attached to the filter;

[0035] When it is determined that the pressure drop of the filter is greater than the preset pressure drop, it means that the filter is clogged and an alarm is issued.

[0036] According to some embodiments of the present invention, the method further includes: a cleaning module, configured to clean the filter when it is determined that the pressure drop of the filter is greater than a preset pressure drop.

[0037] According to some embodiments of the present invention, the present invention further includes: a display module, which is used to determine and display the cleaning time of the filter screen by the cleaning module;

[0038] The cleaning module is a laser cleaning device;

[0039] The display module comprises:

[0040] A first acquisition module is used to acquire first attribute information of the filter, and calculate the power G of the laser beam emitted by the laser cleaning device according to the first attribute information; the first attribute information includes the density and specific heat capacity of the filter, the temperature of the filter before and after the laser beam irradiates the filter, the reflectivity and heat transfer coefficient of the filter;

[0041]

[0042] Among them, ρ 1 is the density of the filter; C is the specific heat capacity of the filter; λ is the wavelength of the laser beam emitted by the laser cleaning device; T 1 is the temperature of the filter after the laser beam irradiates the filter; T 2 is the temperature of the filter before the laser beam irradiates the filter; ζ is the reflectivity of the filter; K is the heat transfer coefficient of the filter; t is the irradiation time of the laser beam on the filter;

[0043] A second acquisition module is used to acquire second attribute information of the floating hair attached to the filter, and calculate the cleaning force F when the laser cleaning device cleans the filter according to the second attribute information and the power of the laser beam emitted by the laser cleaning device; the second attribute information includes the radius, thermal expansion coefficient and density of the floating hair attached to the filter;

[0044]

[0045] Wherein, r is the radius of the floating hair attached to the filter; μ is the thermal expansion coefficient of the floating hair attached to the filter; f is the frequency of the laser beam emitted by the laser cleaning equipment; χ is the amplitude of the vibration of the filter after the laser beam irradiates the filter; ρ 2 is the density of the floating hair attached to the filter;

[0046] The query module is used to query the preset cleaning force-cleaning time data table based on the cleaning force of the laser cleaning equipment when cleaning the filter, determine the cleaning time and display it.

[0047] To achieve the above-mentioned object, a second embodiment of the present invention provides an air purifier, comprising the dual-motor system as described above.

[0048] The present invention proposes a dual-motor system and an air purifier with an airflow adjustment function, which is arranged in a dual-air duct and dual-wind wheel form to improve the absorption efficiency and adsorption effect of floating hair. At the same time, the floating hair outside the purification shell is detected, and the corresponding wind speed is switched according to the amount of floating hair, which further improves the absorption efficiency of floating hair.

[0049] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0050] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0052] Figure 1 is a block diagram of a dual motor system with airflow adjustment function according to one embodiment of the present invention;

[0053] Figure 2 is a schematic diagram of an air purifier according to an embodiment of the present invention;

[0054] Figure 3 is a perspective view of an air purifier according to an embodiment of the present invention.

[0055] Reference numerals:

[0056] Purification shell 1, first filter 11, second filter 12, first air inlet 13, second air inlet 14, upper air duct 15, upper wind wheel 16, lower air duct 17, lower wind wheel 18, first motor 19, second motor 20, first brush 311, second brush 312, first collecting pipe 331, second collecting pipe 332, third collecting pipe 333, fourth collecting pipe 334, collecting tank 34, second driving module 35. DETAILED DESCRIPTION

[0057] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0058] like Figure 1 As shown, the first embodiment of the present invention proposes a dual-motor system with airflow regulation function, comprising:

[0059] Purification housing 1;

[0060] Dual motors are arranged inside the purification housing;

[0061] The detection module is arranged outside the purification housing and is used to detect the floating hair outside the purification housing 1 to obtain the detection result;

[0062] The first determination module is used to determine the working power of the dual motors based on the detection results.

[0063] The working principle of the above technical solution is as follows: a dual air duct and dual wind wheel are arranged inside the purification housing 1, and a dual motor is provided correspondingly, including a first motor 19 and a second motor 20, each motor corresponds to a corresponding air duct and wind wheel, and is used to adjust the corresponding wind speed. The detection module is used to detect the floating hair outside the purification housing 1, obtain the detection result, judge the amount of floating hair outside the purification housing 1 based on the detection result, and determine the working power of the corresponding motor based on the amount of floating hair according to the preset floating hair amount-working power data table, so as to determine the corresponding wind speed according to different floating hair amounts.

[0064] The beneficial effects of the above technical solution are as follows: the layout is in the form of double air ducts and double wind wheels, which improves the absorption efficiency and adsorption effect of floating hair. At the same time, the floating hair outside the purification shell 1 is detected, and the corresponding wind speed is switched according to the amount of floating hair. When it is detected that the amount of floating hair on the ground is greater than the preset threshold, the speed of the second motor is increased; if it is detected that there is no floating hair in the air, the speed of the first motor can be adjusted to 0; when it is detected that the amount of floating hair in the air is greater than the preset threshold, the speed of the first motor is increased; if it is detected that there is no floating hair on the ground, the speed of the second motor can be adjusted to 0; when it is detected that the amount of floating hair on the ground and the amount of floating hair in the air are both greater than the preset threshold, the speed of the dual motors is increased. According to the different amounts of floating hair, the speed of the dual motors is adjusted to further improve the absorption efficiency of the floating hair.

[0065] like Figure 2-3 As shown, according to some embodiments of the present invention, air inlet holes are provided on the side and bottom of the purification housing 1; and an air duct system is provided inside the purification housing 1;

[0066] The dual motors operate at a determined working power, and based on the air inlet holes and the air duct system, the air with floating hair is sucked into the interior of the purification housing 1.

[0067] According to some embodiments of the present invention, the purification housing 1 includes an upper housing and a lower housing; wherein a first air inlet 13 is provided on the side of the upper housing; and a second air inlet 14 is provided on the side and bottom of the lower housing;

[0068] The air duct system includes an upper air duct system and a lower air duct system, wherein the upper air duct system is arranged inside the upper shell body, and the lower air duct system is arranged inside the lower shell body;

[0069] The dual motors include a first motor 19 and a second motor 20; the first motor 19 draws air with floating hair into the interior of the upper shell based on the first air inlet hole 13 and the upper air duct 15 system; the second motor 20 draws air with floating hair into the interior of the lower shell based on the second air inlet hole 14 and the lower air duct 17 system.

[0070] The working principle and beneficial effects of the above technical solution: air inlet holes are designed around the side of the upper shell body, which can absorb floating hair and dandruff in the air at 360 degrees, and a first filter screen 11 is arranged inside to filter the floating hair and dandruff on the outside of the first filter screen 11; air inlet holes are designed around the side and bottom of the lower shell body, which can absorb floating hair and dandruff in the air at low altitude and on the floor at 360 degrees, and a second filter screen 12 is arranged inside to filter the floating hair and dandruff on the outside of the second filter screen 12; an independent dual air duct system is designed inside, and the upper air duct system includes an upper air duct 15 and an upper wind wheel 16; the lower air duct system includes a lower air duct 17 and a lower wind wheel 18; the dual air duct system is equipped with dual motors (a first motor 19 and a second motor 20) or a dual-axis motor to ensure sufficient upper and lower air intake and wind speed. The dual motors (the first motor 19 and the second motor 20) or a dual-axis motor are started at the maximum gear, and air with floating hair and dandruff is sucked into the interior from the air inlet holes around the upper part, the lower part and the bottom. When passing through the first filter 11 and the second filter 12, the floating hair and dandruff are filtered on the outside by the filters, and the filtered air is blown out from the middle of the machine (the air outlet can be set to the front and rear double side outlets, left and right double side outlets, single side outlet, four-side outlet or three-side outlet of the machine).

[0071] According to some embodiments of the present invention, the detection module includes:

[0072] A shooting module, used to shoot an image of the environment outside the purification housing 1;

[0073] The second determination module is used to determine the edge area of ​​the environment image and obtain the pixel mean of all pixels in the edge area; calculate the difference according to the pixel mean of the edge area of ​​the environment images of adjacent frames, and when it is determined that the difference is less than a preset difference, fuse the environment images of adjacent frames to obtain a panoramic image;

[0074] The third determination module is used to:

[0075] Grayscale processing is performed on the panoramic image to determine the grayscale values ​​of the pixels in the panoramic image, and a preset grayscale threshold is used for comparison to determine the number of pixels whose grayscale values ​​are greater than the preset grayscale threshold;

[0076] According to the number of pixels whose grayscale values ​​are greater than a preset grayscale threshold and the number of pixels included in the panoramic image, ratio information is determined as a detection result.

[0077] The working principle of the above technical solution: In this embodiment, the shooting of the environment image facilitates the determination of scene information including floating hairs on the outside of the purification housing 1 .

[0078] In this embodiment, an edge detection algorithm (such as Canny, Sobel, Prewitt, Roberts or Laplacian, etc.) is used to determine the edge area of ​​the environment image. Based on the edge detection algorithm, the area with obvious brightness changes in the image, that is, the edge, can be identified. For the detected edge area, all pixels in the area are traversed. The RGB value of each pixel is accumulated. The cumulative sum is calculated and divided by the total number of pixels in the edge area to obtain the pixel mean. Adjacent frame processing: For continuous adjacent frames, the pixel mean of the edge area of ​​each frame image is calculated respectively. The pixel means of the edge area of ​​two adjacent frames are subtracted to obtain the difference. By comparing the pixel mean difference of the edge area of ​​adjacent frames with the preset difference, their similarity can be judged. If the difference is small, it means that the adjacent frames are relatively similar in this area and are suitable for fusion to eliminate possible splicing traces and obtain a more natural and smooth panoramic image. During the fusion process, pay attention to aligning adjacent frames to ensure that the fused panoramic image is visually continuous and has no obvious seams. Generate a panoramic image: fuse the image frame by frame until all adjacent frames are fused. The final panoramic image will contain information from all frames and maintain good continuity and consistency in the edge area. The panoramic image is an overall environmental image of the outside of the shell.

[0079] In this embodiment, the panoramic image is converted from color (RGB) to a grayscale image. Each pixel in the grayscale image has only one grayscale value, which is usually in the range of 0-255 (for an 8-bit grayscale image). The grayscale value of each pixel can be obtained by traversing the image matrix. The preset grayscale threshold is the threshold for determining whether it is floating hair. Traverse each pixel in the grayscale image and compare its grayscale value with the preset threshold. If the grayscale value is greater than the threshold, the pixel is marked as a pixel that meets the conditions. The grayscale value of floating hair is usually larger than the grayscale value of the background pixel in the environment. During the traversal process, a counter is used to record the number of pixels with a grayscale value greater than the threshold. The total number of pixels in the panoramic image (after grayscale conversion) is obtained. The ratio of the number of pixels with a grayscale value greater than the preset grayscale threshold to the total number of pixels in the panoramic image is calculated as a basis for determining the amount of floating hair in the air outside the shell.

[0080] The beneficial effect of the above technical solution is as follows: a plurality of images of the environment outside the purification housing 1 are taken and fused to obtain a panoramic image. Based on the number of pixels in the panoramic image whose grayscale value is greater than a preset grayscale threshold and the number of pixels included in the panoramic image, ratio information is determined as a detection result to detect the amount of floating hair in the air outside the housing.

[0081] According to some embodiments of the present invention, a comparison module is further included, which is used to:

[0082] Before the third determination module performs grayscale processing on the panoramic image, a fusion evaluation value W of the panoramic image is calculated;

[0083]

[0084] Wherein, m is the length of the panoramic image; n is the width of the panoramic image; F(i,j) is the pixel value at (i,j) in the panoramic image; F(i,j-1) is the pixel value at (i,j-1) in the panoramic image; F(i-1,j) is the pixel value at (i-1,j) in the panoramic image;

[0085] The fusion evaluation value is compared with the preset fusion threshold. When it is determined that the fusion evaluation value is greater than the preset fusion threshold, it means that the fusion process of the panoramic image is qualified; otherwise, it means that the fusion process of the panoramic image is unqualified and needs to be re-fused.

[0086] The working principle and beneficial effects of the above technical solution are as follows: before the third determination module performs grayscale processing on the panoramic image, the fusion evaluation value of the panoramic image is calculated based on the comparison module, the fusion evaluation value is compared with the preset fusion threshold, and whether the fusion process of the panoramic image is qualified is judged according to the comparison result. When it is determined that the fusion process of the panoramic image is unqualified, the fusion process is performed again, so as to improve the fusion quality of the panoramic image, and then improve the accuracy of the detection result.

[0087] According to some embodiments of the present invention, the purification housing 1 further includes a filter screen disposed inside for filtering the air with floating hair.

[0088] According to some embodiments of the present invention, the present invention further comprises: an alarm module, configured to:

[0089] A plurality of flow velocity information is obtained based on a plurality of flow velocity sensors arranged at the lower part of the filter screen, and a flow velocity root mean square value σ is calculated according to the plurality of flow velocity information;

[0090]

[0091] Where n is the number of flow velocity information; v i is the i-th flow rate information; is the average flow velocity obtained based on n flow velocity information;

[0092] When it is determined that the flow rate root mean square value is less than a preset flow rate root mean square threshold value, calculating the pressure drop P of the filter;

[0093]

[0094] Where, λ is the viscosity coefficient of the air with floating hair passing through the filter; S 1 is the preset unit area of ​​the filter; L 1 is the pore size of the filter; L 2 is the thickness of the filter; H is the thickness of the floating hair attached to the filter; V is the preset unit volume of the filter; S 2 is the cross-sectional area of ​​the floating hair attached to the filter;

[0095] When it is determined that the pressure drop of the filter is greater than the preset pressure drop, it means that the filter is clogged and an alarm is issued.

[0096] The working principle and beneficial effects of the above technical solution are as follows: based on a plurality of flow velocity sensors arranged at the bottom of the filter, a plurality of flow velocity information is obtained, and the flow velocity root mean square value is calculated based on the plurality of flow velocity information, and this value can reflect the overall change degree or fluctuation degree of the flow velocity. When it is determined that the flow velocity root mean square value is less than the preset flow velocity root mean square threshold value, it indicates that the flow velocity passing through the filter is abnormal, that is, it indicates that the filter may be abnormal, so it is necessary to calculate the pressure drop of the filter. When it is determined that the pressure drop of the filter is greater than the preset pressure drop, it indicates that the filter is blocked, and an alarm is issued, so that the filter can be cleaned in time, and the air with floating hair can be continuously absorbed and purified.

[0097] According to some embodiments of the present invention, the method further includes: a cleaning module, configured to clean the filter when it is determined that the pressure drop of the filter is greater than a preset pressure drop.

[0098] According to some embodiments of the present invention, the present invention further includes: a display module, which is used to determine and display the cleaning time of the filter screen by the cleaning module;

[0099] The cleaning module is a laser cleaning device;

[0100] The display module comprises:

[0101] A first acquisition module is used to acquire first attribute information of the filter, and calculate the power G of the laser beam emitted by the laser cleaning device according to the first attribute information; the first attribute information includes the density and specific heat capacity of the filter, the temperature of the filter before and after the laser beam irradiates the filter, the reflectivity and heat transfer coefficient of the filter;

[0102]

[0103] Among them, ρ 1 is the density of the filter; C is the specific heat capacity of the filter; λ is the wavelength of the laser beam emitted by the laser cleaning device; T 1 is the temperature of the filter after the laser beam irradiates the filter; T 2is the temperature of the filter before the laser beam irradiates the filter; ζ is the reflectivity of the filter; K is the heat transfer coefficient of the filter; t is the irradiation time of the laser beam on the filter;

[0104] A second acquisition module is used to acquire second attribute information of the floating hair attached to the filter, and calculate the cleaning force F when the laser cleaning device cleans the filter according to the second attribute information and the power of the laser beam emitted by the laser cleaning device; the second attribute information includes the radius, thermal expansion coefficient and density of the floating hair attached to the filter;

[0105]

[0106] Wherein, r is the radius of the floating hair attached to the filter; μ is the thermal expansion coefficient of the floating hair attached to the filter; f is the frequency of the laser beam emitted by the laser cleaning equipment; χ is the amplitude of the vibration of the filter after the laser beam irradiates the filter; ρ 2 is the density of the floating hair attached to the filter;

[0107] The query module is used to query the preset cleaning force-cleaning time data table based on the cleaning force of the laser cleaning equipment when cleaning the filter, determine the cleaning time and display it.

[0108] The working principle and beneficial effects of the above technical solution: The principle of the laser cleaning device is that the laser transfers a large amount of heat to the dirt to increase its temperature, thereby expanding due to heat, and the bonding force with the surface of the substrate is weakened or even falls off. The display module determines the cleaning time of the cleaning module to clean the filter and displays it, so that the user can accurately determine the cleaning time information and improve the user experience. The display module includes: a first acquisition module, which is used to obtain the first attribute information of the filter, calculate the power of the laser beam emitted by the laser cleaning device according to the first attribute information, obtain the second attribute information of the floating hair attached to the filter, calculate the cleaning force of the laser cleaning device when cleaning the filter according to the second attribute information and the power of the laser beam emitted by the laser cleaning device, query the preset cleaning force-cleaning time data table based on the cleaning force of the laser cleaning device when cleaning the filter, determine the cleaning time and display it, so that the user can understand the cleaning time, and then facilitate timely use to achieve air purification.

[0109] In one embodiment, a hair cleaning and collection module is also included, which is used to clean and collect the hair after cleaning when the filter is cleaned by the laser cleaning device.

[0110] To achieve the above-mentioned object, a second embodiment of the present invention provides an air purifier, comprising the dual-motor system as described above.

[0111] In one embodiment, the air purifier includes a hair cleaning and collection module for further cleaning and collecting the floating hair on the filter. The hair cleaning and collection module includes: a brush, a first driving module, a collection pipe, a collection tank 34 and a second driving module 35; wherein,

[0112] The brush is arranged outside the filter screen and connected to one end of the collection pipe; the other end of the collection pipe is connected to the collection tank 34;

[0113] The first driving module is used to drive the brush to move along the filter screen direction;

[0114] The second driving module 35 is used to connect to the air outlet of the collection tank 34 so as to absorb the floating hair and dandruff obtained by brushing into the collection tank 34 .

[0115] The brush includes a first brush 311 and a second brush 312; wherein,

[0116] The first brush 311 is disposed on the outside of the first filter 11 and includes a first connection port and a second connection port, which are respectively connected to one end of the first collection pipe 331 and one end of the second collection pipe 332; the other end of the first collection pipe 331 and the other end of the second collection pipe 332 are connected to the collection tank 34;

[0117] The second brush 312 is arranged on the outside of the second filter 12, and includes a third connection port and a fourth connection port, which are respectively connected to one end of the third collecting pipe 333 and one end of the fourth collecting pipe 334; the other end of the third collecting pipe 333 and the other end of the fourth collecting pipe 334 are connected to the collection tank 34.

[0118] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A dual motor system with airflow regulation function, characterized in that: include: Purify the shell; Dual motors are arranged inside the purification housing; The detection module is arranged outside the purification housing and is used to detect the floating hair outside the purification housing and obtain the detection result; The first determination module is used to determine the working power of the dual motors based on the detection results.

2. The dual-motor system with airflow adjustment function as claimed in claim 1, characterized in that: The side and bottom of the purification shell are provided with air inlet holes; the interior of the purification shell is provided with an air duct system; The dual motors operate at a determined working power, and based on the air inlet holes and air duct system, the air with floating hair is sucked into the interior of the purification shell.

3. The dual-motor system with airflow adjustment function as claimed in claim 2, characterized in that: The purification shell includes an upper shell and a lower shell; wherein a first air inlet hole is arranged on the side of the upper shell; and a second air inlet hole is arranged on the side and bottom of the lower shell; The air duct system includes an upper air duct system and a lower air duct system, wherein the upper air duct system is arranged inside the upper shell body, and the lower air duct system is arranged inside the lower shell body; The dual motor includes a first motor and a second motor; the first motor draws air with floating hair into the interior of the upper shell based on the first air inlet hole and the upper air duct system; the second motor draws air with floating hair into the interior of the lower shell based on the second air inlet hole and the lower air duct system.

4. The dual-motor system with airflow adjustment function as claimed in claim 1, characterized in that: The detection module comprises: A shooting module, used for shooting an image of the environment outside the purification housing; The second determination module is used to determine the edge area of ​​the environment image and obtain the pixel mean of all pixels in the edge area; calculate the difference according to the pixel mean of the edge area of ​​the environment images of adjacent frames, and when it is determined that the difference is less than a preset difference, fuse the environment images of adjacent frames to obtain a panoramic image; The third determination module is used to: Grayscale processing is performed on the panoramic image to determine the grayscale values ​​of the pixels in the panoramic image, and a preset grayscale threshold is used for comparison to determine the number of pixels whose grayscale values ​​are greater than the preset grayscale threshold; According to the number of pixels whose grayscale values ​​are greater than a preset grayscale threshold and the number of pixels included in the panoramic image, ratio information is determined as a detection result.

5. The dual-motor system with airflow adjustment function as claimed in claim 4, characterized in that: Also includes comparison modules for: Before the third determination module performs grayscale processing on the panoramic image, a fusion evaluation value W of the panoramic image is calculated; Wherein, m is the length of the panoramic image; n is the width of the panoramic image; F(i,j) is the pixel value at (i,j) in the panoramic image; F(i,j-1) is the pixel value at (i,j-1) in the panoramic image; F(i-1,j) is the pixel value at (i-1,j) in the panoramic image; The fusion evaluation value is compared with the preset fusion threshold. When it is determined that the fusion evaluation value is greater than the preset fusion threshold, it means that the fusion process of the panoramic image is qualified; otherwise, it means that the fusion process of the panoramic image is unqualified and needs to be re-fused.

6. The dual-motor system with airflow adjustment function as claimed in claim 1, characterized in that: The purification housing also includes a filter screen arranged inside, which is used for filtering the air with floating hair.

7. The dual-motor system with airflow adjustment function as claimed in claim 6, characterized in that: Also includes: an alarm module for: A plurality of flow velocity information is obtained based on a plurality of flow velocity sensors arranged at the lower part of the filter screen, and a flow velocity root mean square value σ is calculated according to the plurality of flow velocity information; Where n is the number of flow velocity information; v i is the i-th flow rate information; is the average flow velocity obtained based on n flow velocity information; When it is determined that the flow rate root mean square value is less than a preset flow rate root mean square threshold value, calculating the pressure drop P of the filter; Wherein, λ is the viscosity coefficient of the air with floating hair passing through the filter; S1 is the preset unit area of ​​the filter; L1 is the pore size of the filter; L2 is the thickness of the filter; H is the thickness of the floating hair attached to the filter; V is the preset unit volume of the filter; S2 is the cross-sectional area of ​​the floating hair attached to the filter; When it is determined that the pressure drop of the filter is greater than the preset pressure drop, it means that the filter is clogged and an alarm is issued.

8. The dual-motor system with airflow adjustment function as claimed in claim 7, characterized in that: Also includes: The cleaning module is used to clean the filter when it is determined that the pressure drop of the filter is greater than a preset pressure drop.

9. The dual-motor system with airflow adjustment function as claimed in claim 8, characterized in that: Also includes: A display module is used to determine and display the cleaning time of the filter screen by the cleaning module; The cleaning module is a laser cleaning device; The display module comprises: A first acquisition module is used to acquire first attribute information of the filter, and calculate the power G of the laser beam emitted by the laser cleaning device according to the first attribute information; the first attribute information includes the density and specific heat capacity of the filter, the temperature of the filter before and after the laser beam irradiates the filter, the reflectivity and heat transfer coefficient of the filter; Wherein, ρ1 is the density of the filter; C is the specific heat capacity of the filter; λ is the wavelength of the laser beam emitted by the laser cleaning device; T1 is the temperature of the filter after the laser beam irradiates the filter; T2 is the temperature of the filter before the laser beam irradiates the filter; ζ is the reflectivity of the filter; K is the heat transfer coefficient of the filter; t is the irradiation time of the laser beam on the filter; A second acquisition module is used to acquire second attribute information of the floating hair attached to the filter, and calculate the cleaning force F when the laser cleaning device cleans the filter according to the second attribute information and the power of the laser beam emitted by the laser cleaning device; the second attribute information includes the radius, thermal expansion coefficient and density of the floating hair attached to the filter; Wherein, r is the radius of the floating hair attached to the filter; μ is the thermal expansion coefficient of the floating hair attached to the filter; f is the frequency of the laser beam emitted by the laser cleaning device; χ is the amplitude of the vibration of the filter after the laser beam irradiates the filter; ρ2 is the density of the floating hair attached to the filter; The query module is used to query the preset cleaning force-cleaning time data table based on the cleaning force of the laser cleaning equipment when cleaning the filter, determine the cleaning time and display it.

10. An air purifier, characterized in that: Comprising a dual motor system as described in any one of claims 1-9.

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