Composite filter, air purifier, control method and computer-readable storage medium

Abstract

The present invention specifically relates to a composite filter, which includes: a chassis; a particulate filter, which is arranged around the periphery of the chassis and can be detachably mounted to the chassis; a plurality of gaseous pollutant filters, which are circumferentially arranged inside the particulate filter and can be detachably mounted to the particulate filter or the chassis; a driving mechanism, which is connected to the chassis and drives the plurality of gaseous pollutant filters and / or particulate filters to rotate through the chassis. The composite filter proposed in the present invention not only has a plurality of gaseous pollutant filters, but also has a particulate filter and a plurality of gaseous pollutant filters that can be detachably mounted to the chassis, which can not only achieve the purpose of uniformly filtering gaseous pollutants through a plurality of gaseous pollutant filters, but also can replace failed gaseous pollutant filters and particulate filters separately, thereby increasing the overall life of the composite filter and reducing the maintenance and replacement costs of the composite filter.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a composite filter, an air purifier, a control method and a computer-readable storage medium. Background Art

[0002] The filters of existing air purifiers are generally composite filters, which combine HEPA (high-efficiency particulate matter) filters, activated carbon, and formaldehyde catalysts to achieve comprehensive filtration performance. However, when using composite filters, whether the user's purpose is to filter formaldehyde or remove particulate matter from the air, the user needs to replace the composite filter together if they want to replace it, which makes it impossible to adjust the performance of the composite filter alone. Moreover, the overall price of composite filters is relatively high, which makes users reluctant to replace composite filters, resulting in a significant reduction in the air purification performance of the air purifier. Summary of the Invention

[0003] In view of this, the present invention provides a composite filter screen to solve the technical problem of high replacement and maintenance costs of the composite filter screen in the prior art.

[0004] In a first aspect, the present invention provides a composite filter, which includes: a chassis; a particulate matter filter, which is arranged around the periphery of the chassis and can be detachably mounted to the chassis; a plurality of gaseous pollutant filters, which are circumferentially arranged inside the particulate matter filter and can be detachably mounted to the particulate matter filter or the chassis; and a driving mechanism, which is connected to the chassis and drives the plurality of gaseous pollutant filters and / or particulate matter filters to rotate through the chassis.

[0005] Beneficial effects: The composite filter proposed in this embodiment is not only provided with multiple gaseous pollutant filters, but also provided with a particulate filter and multiple gaseous pollutant filters that are all detachable. It can not only achieve the purpose of uniformly filtering gaseous pollutants through multiple gaseous pollutant filters, but also can replace failed gaseous pollutant filters and particulate filters separately, thereby improving the overall life of the composite filter and reducing the maintenance and replacement costs of the composite filter.

[0006] Specifically, the role of the chassis in the composite filter is to carry the particulate filter and the gaseous pollutant filter, and to drive the particulate filter and the gaseous pollutant filter to rotate, so that the particulate filter and the gaseous pollutant filter can filter evenly and reduce the phenomenon of local over-filtration or local under-filtration of the particulate filter and the gaseous pollutant filter; the particulate filter includes HEPA (polyester fiber filter) and PET high-efficiency filter), which is used to adsorb tiny dust in the air and is set at the outermost layer of the entire composite filter, and the specific structure is generally a cylindrical structure; the gaseous pollutant filter includes activated carbon filter and nano titanium dioxide filter, which is used to filter out gaseous pollutants such as formaldehyde in the air and is set in the middle of the entire composite filter, and the specific structure is generally a cylindrical structure; the driving mechanism is used to drive the chassis to drive the particulate filter and multiple gaseous pollutant filters to rotate, which can improve the problem of uneven adsorption of pollutants by the particulate filter and multiple gaseous pollutant filters, and avoid the phenomenon that some filters or local positions of the filters have not reached the end of their service life when users replace the filters.

[0007] In an optional embodiment, the gaseous pollutant filter and the particulate matter filter are both configured as cylindrical structures, and a plurality of gaseous pollutant filters are circumferentially arranged around the inner wall of the particulate matter filter and can rotate relative to the particulate matter filter.

[0008] Beneficial effect: By setting the particulate filter as a large filter cylinder and setting multiple small filter cylinders inside the particulate filter, compared with the existing composite filter, under the premise of unchanged size, the sum of the surface areas of the gaseous pollutant filter in the embodiment of the present application is 1.5 times that of the existing composite filter.

[0009] In an optional embodiment, the composite filter further includes a weight sensor, which is disposed on the chassis and is used to weigh the weight change of the particulate filter.

[0010] Beneficial effects: In daily use of the composite filter, the internal gaseous pollutant filter adsorbs less gaseous pollutants, and the gaseous pollutants have little effect on the weight of the gaseous pollutant filter. This can be achieved by adding a weight sensor to the chassis, detecting and recording the initial weight of the overall composite filter, and obtaining the weight data of the composite filter under the maximum CCM (cumulative purification capacity) state through experiments. The user can be reminded to replace the outer particulate filter through a comparison program without replacing the internal gaseous pollutant filter at the same time. Compared with the particulate filter, the gaseous pollutant filter with room temperature catalytic substances is more expensive, thereby reducing the replacement and maintenance costs of the composite filter.

[0011] In an optional embodiment, the composite filter further includes an air pressure sensor, which is provided on each gaseous pollutant filter to detect the blockage of each gaseous pollutant filter.

[0012] Beneficial effect: In order to reduce the phenomenon of clogging and failure of gaseous pollutant filters, the embodiment of the present application also proposes to set an air pressure sensor on the gaseous pollutant filter to detect the clogging condition of each gaseous pollutant filter, so as to remind users to replace and maintain the gaseous pollutant filter in time, thereby reducing the clogging of the gaseous pollutant filter and affecting the normal use of the composite filter.

[0013] In a second aspect, the present invention provides an air purifier, which includes: a shell, a accommodating cavity formed inside the shell, and the shell is provided with an air inlet and an air outlet connected to the accommodating cavity; according to the composite filter screen of the first aspect of the present invention, the composite filter screen is arranged in the accommodating cavity and is located in the air duct between the air inlet and the air outlet.

[0014] Beneficial effects: The composite filter can control the particulate filter and multiple gaseous pollutant filters to rotate circumferentially, and rotate them to the air inlet and outlet of the air purifier in turn, thereby improving the uneven adsorption of pollutants by the particulate filter and multiple gaseous pollutant filters, and avoiding the phenomenon that some filters or parts of the filters have not reached their service life when users replace the filters.

[0015] In a third aspect, the present invention provides a control method for an air purifier, which is implemented by the air purifier of the second aspect of the present invention. The control method includes: obtaining the state of the air purifier; turning on the driving mechanism of the air purifier according to the air purifier being in the on state; the driving mechanism drives the particulate matter filter to rotate through the chassis of the air purifier, and / or the driving mechanism drives multiple gaseous pollutant filters to rotate through the chassis.

[0016] Beneficial effect: The air purifier can control the particulate filter and multiple gaseous pollutant filters to rotate circumferentially, and rotate them to the air inlet and outlet of the air purifier in turn, so as to improve the uneven adsorption of pollutants by the particulate filter and multiple gaseous pollutant filters, and avoid the phenomenon that some filters or local positions of the filters have not reached the end of their service life when users replace the filters.

[0017] In an optional embodiment, after the driving mechanism drives the particulate filter to rotate through the chassis of the air purifier, it includes: detecting the real-time weight increment of the particulate filter; triggering a reminder to replace the particulate filter based on the real-time weight increment reaching a preset weight increment.

[0018] Beneficial effects: In daily use of the composite filter, the internal gaseous pollutant filter adsorbs less gaseous pollutants, and the gaseous pollutants have little effect on the weight of the gaseous pollutant filter. This can be achieved by adding a weight sensor to the chassis, detecting and recording the initial weight of the overall composite filter, and obtaining the weight data of the composite filter under the maximum CCM state through experiments. The user can be reminded to replace the outer particulate filter through a comparison program without replacing the internal gaseous pollutant filter at the same time. Compared with the particulate filter, the gaseous pollutant filter with room temperature catalytic substances is more expensive, thereby reducing the replacement and maintenance costs of the composite filter.

[0019] In an optional embodiment, after the driving mechanism drives the particulate matter filter to rotate through the chassis of the air purifier, it includes: detecting the real-time weight increment of the particulate matter filter; detecting the local weight increment of the particulate matter filter based on the real-time weight increment not reaching the preset weight increment; controlling the variable speed rotation of the chassis according to the local weight increment of the particulate matter filter, and / or controlling the intermittent rotation of the chassis.

[0020] Beneficial Effect: By controlling the variable speed rotation of the chassis based on the local weight increment of the particulate filter, and / or controlling the intermittent rotation of the chassis, the particulate filter can achieve the effect of evenly adsorbing pollutants. Specifically, for locations with smaller local weight increments, indicating that they have absorbed less pollutants, the speed of this local location at the air inlet can be reduced, or this local location can be controlled to stay at the air inlet for a short time, so that this local location can fully absorb pollutants at the air inlet, thereby achieving the effect of overall even adsorption of pollutants by the particulate filter.

[0021] In an optional embodiment, after the driving mechanism drives multiple gaseous pollutant filters to rotate through the chassis, it also includes: detecting the real-time blockage status of each gaseous pollutant filter; obtaining the gaseous pollutant filters whose real-time blockage status does not exceed the standard, and controlling the gaseous pollutant filters that do not exceed the standard to rotate to a position facing the air inlet.

[0022] Beneficial Effect: By controlling the gaseous pollutant filter that does not exceed the standard to rotate to a position facing the air inlet, the multiple gaseous pollutant filters can achieve the effect of evenly adsorbing pollutants. Specifically, the gaseous pollutant filter that does not exceed the standard is rotated to the air inlet, so that the gaseous pollutant filter that does not exceed the standard can fully adsorb pollutants at the air inlet, thereby achieving the effect of overall even adsorption of pollutants by multiple gaseous pollutant filters.

[0023] In an optional embodiment, after the driving mechanism drives multiple gaseous pollutant filters to rotate through the chassis, it also includes: detecting the real-time blockage status of each gaseous pollutant filter; triggering a reminder to replace the gaseous pollutant filter based on the real-time blockage status of all gaseous pollutant filters exceeding the standard.

[0024] Beneficial effect: In order to reduce the phenomenon of clogging and failure of gaseous pollutant filters, the embodiment of the present application also proposes to set an air pressure sensor on the gaseous pollutant filter to detect the clogging condition of each gaseous pollutant filter, so as to remind users to replace and maintain the gaseous pollutant filter in time, thereby reducing the clogging of the gaseous pollutant filter and affecting the normal use of the composite filter.

[0025] In a fourth aspect, the present invention provides a computer-readable storage medium, which, when instructions in the computer-readable storage medium are executed by a processor of an electronic device, enables the electronic device to execute the air purifier control method of the third aspect of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic structural diagram of a composite filter screen according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic structural diagram of a composite filter screen according to another embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the internal structure of a composite filter screen according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the assembly structure of a gaseous pollutant filter according to an embodiment of the present invention;

[0031] Figure 5 This is a flow chart of a method for controlling an air purifier according to an embodiment of the present invention;

[0032] Figure 6 The figure is a flow chart of a method for controlling an air purifier according to another embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 100. Composite filter;

[0035] 10. Chassis; 20. Particulate filter; 30. Gaseous pollutant filter; 31. Card slot; 40. Air guide plate; 50. Drive mechanism; 60. Weight sensor. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "inner," "upper," "outer," "lower," and "under" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal connection between two components; wireless connection or wired connection. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0039] Cumulative Clean Air Volume (CCM) is a parameter that measures the cumulative purification capacity of a purifier for target pollutants (particulate matter and gaseous pollutants) under specified test conditions. It indicates the total mass of target pollutants that have been purified when the measured clean air volume of the purifier decays to 50% of its initial value.

[0040] For composite filters, the CCM of particulate matter is often greater than the CCM of gaseous pollutants. That is, when the user is in a formaldehyde environment and the CCM of gaseous pollutants in the filter exceeds the standard, there is still a margin of CCM for particulate matter.

[0041] The following combination Figures 1 to 6 , describing embodiments of the present invention.

[0042] like Figures 1 to 4As shown, according to an embodiment of the present invention, on the one hand, the present invention provides a composite filter 100, the composite filter 100 includes a chassis 10, a particulate filter 20, a plurality of gaseous pollutant filters 30 and a driving mechanism 50, the particulate filter 20 is arranged around the periphery of the chassis 10 and can be detachably mounted to the chassis 10; the plurality of gaseous pollutant filters 30 are circumferentially arranged inside the particulate filter 20 and can be detachably mounted to the particulate filter 20 or the chassis 10; the driving mechanism 50 is connected to the chassis 10, and drives the plurality of gaseous pollutant filters 30 and / or the particulate filter 20 to rotate through the chassis 10.

[0043] In this embodiment, the composite filter 100 proposed in this embodiment is not only provided with multiple gaseous pollutant filters 30, but also provided with a particulate filter 20 and multiple gaseous pollutant filters 30, which can be detachably installed on the chassis 10. It can not only achieve the purpose of uniformly filtering gaseous pollutants through multiple gaseous pollutant filters 30, but also can replace failed gaseous pollutant filters 30 and particulate filters 20 separately, thereby improving the overall life of the composite filter 100 and reducing the maintenance and replacement costs of the composite filter 100.

[0044] Specifically, the function of the chassis 10 in the composite filter 100 is to support the particulate filter 20 and the gaseous pollutant filter 30 and to drive the particulate filter 20 and the gaseous pollutant filter 30 to rotate, thereby enabling the particulate filter 20 and the gaseous pollutant filter 30 to filter uniformly and reducing the phenomenon of local over-filtration or local under-filtration of the particulate filter 20 and the gaseous pollutant filter 30;

[0045] The particle filter 20 includes a HEPA (polyester fiber filter) and a PET high-efficiency filter), which is used to absorb tiny dust in the air. It is located at the outermost layer of the entire composite filter 100 and has a generally cylindrical structure.

[0046] The gaseous pollutant filter 30 includes an activated carbon filter and a nano titanium dioxide filter, which is used to filter out gaseous pollutants such as formaldehyde in the air. It is located in the middle of the entire composite filter 100 and has a generally cylindrical structure. Figure 4 As shown, the gaseous pollutant filter 30 is connected to the particulate filter 20 or the chassis 10 through the card slot 31;

[0047] The driving mechanism 50 is used to drive the chassis 10 to drive the particulate matter filter 20 and multiple gaseous pollutant filters 30 to rotate, which can improve the problem of uneven adsorption of pollutants by the particulate matter filter 20 and multiple gaseous pollutant filters 30, and avoid the phenomenon that some filters or local positions of the filters have not reached the end of their service life when users replace the filters.

[0048] It should be noted that the embodiment of the present application does not limit the application scope of the composite filter 100 because the main invention point of the present application lies in the overall layout and structure of the composite filter 100, so as to solve the technical problem of poor user experience caused by frequent use of the composite filter 100. As for the application scope of the composite filter 100, it can be set according to the actual use environment. For example, the composite filter 100 can be used in air purifiers, fresh air fans, air conditioners and other products and equipment containing filters. These application scopes of the composite filter 100 all fall within the protection scope of the embodiment of the present application.

[0049] Below through Figures 1 to 4 The preferred embodiment of the composite filter screen 100 is described in detail.

[0050] like Figures 1 to 4 As shown, in some embodiments, the gaseous pollutant filter 30 and the particulate filter 20 are both configured as cylindrical structures, and multiple gaseous pollutant filters 30 are circumferentially arranged around the inner wall of the particulate filter 20 and can rotate relative to the particulate filter 20.

[0051] In the above embodiment, by setting the particulate filter 20 as a large filter cylinder and setting multiple small filter cylinders inside the particulate filter 20, compared with the existing composite filter 100, under the premise of unchanged size, the sum of the surface areas of the gaseous pollutant filter 30 in the embodiment of the present application is 1.5 times that of the existing composite filter 100.

[0052] Specifically, the chassis 10 is provided with a first turntable and a second turntable rotatably mounted outside the first turntable, a plurality of gaseous pollutant filters 30 are installed on the periphery of the first turntable, and a particulate matter filter 20 is installed on the periphery of the second turntable, and the driving mechanism 50 drives the plurality of gaseous pollutant filters 30 to rotate through the first turntable, and drives the particulate matter filter 20 to rotate through the second turntable.

[0053] The driving mechanism 50 includes a driving motor and a gear system connected to the driving motor. The gear system is connected to the first turntable and the second turntable respectively. The driving motor drives the first turntable and the second turntable respectively through the gear system in a bidirectional rotation manner.

[0054] like Figures 1 to 4 As shown, in some embodiments, the composite filter 100 further includes a weight sensor 60 , which is disposed on the chassis 10 and is used to weigh the weight change of the particle filter 20 .

[0055] In the above embodiment, during daily use of the composite filter 100, the internal gaseous pollutant filter 30 adsorbs less gaseous pollutants, and the gaseous pollutants have little effect on the weight of the gaseous pollutant filter 30. This can be achieved by adding a weight sensor 60 to the chassis 10, detecting and recording the initial weight of the entire composite filter 100, and obtaining the weight data of the composite filter 100 under the maximum CCM state through experiments. The user can then be reminded to replace the outer particulate filter 20 through a comparison program without having to replace the internal gaseous pollutant filter 30 at the same time. Compared with the particulate filter 20, the gaseous pollutant filter 30 with room temperature catalytic material is more expensive, thereby reducing the replacement and maintenance costs of the composite filter 100.

[0056] like Figures 1 to 4 As shown, in some embodiments, the composite filter 100 further includes an air pressure sensor, which is disposed on each gaseous pollutant filter 30 to detect a blockage condition of each gaseous pollutant filter 30 .

[0057] In the above embodiment, in order to reduce the phenomenon of clogging and failure of the gaseous pollutant filter 30, the embodiment of the present application also proposes to set an air pressure sensor on the gaseous pollutant filter 30 to detect the clogging condition of each gaseous pollutant filter 30, so as to remind the user to replace and maintain the gaseous pollutant filter 30 in time, thereby reducing the clogging of the gaseous pollutant filter 30 and affecting the normal use of the composite filter 100.

[0058] Furthermore, the periphery of the composite filter 100 is also provided with an air inlet and an air outlet surrounded by an air guide plate 40. The composite filter 100 can drive the turntable to rotate through the driving mechanism 50, so that the turntable can drive the particulate filter 20 and multiple gaseous pollutant filters 30 to rotate to the air inlet and the air outlet in turn, so as to achieve the purpose of evenly adsorbing pollutants by the particulate filter 20 and multiple gaseous pollutant filters 30.

[0059] In a second aspect, the present invention provides an air purifier, which includes: a shell, a accommodating cavity formed inside the shell, and the shell is provided with an air inlet and an air outlet connected to the accommodating cavity; according to the composite filter 100 of the first aspect of the present invention, the composite filter 100 is arranged in the accommodating cavity and is located in the air duct between the air inlet and the air outlet.

[0060] In this embodiment, the composite filter 100 can control the particulate filter 20 and multiple gaseous pollutant filters 30 to rotate circumferentially, and rotate them to the air inlet and outlet of the air purifier in turn, so as to improve the uneven adsorption of pollutants by the particulate filter 20 and multiple gaseous pollutant filters 30, and avoid the phenomenon that some filters or local parts of the filters have not reached their service life when users replace the filters.

[0061] like Figure 5 As shown, in the third aspect, the present invention provides a control method for an air purifier, and the control method is implemented by the air purifier of the second aspect of the present invention, and the control method includes: obtaining the state of the air purifier; according to the air purifier being in the on state, turning on the driving mechanism 50 of the air purifier; the driving mechanism 50 drives the particulate matter filter 20 to rotate through the chassis 10 of the air purifier, and / or the driving mechanism 50 drives multiple gaseous pollutant filters 30 to rotate through the chassis 10.

[0062] In this embodiment, the air purifier can control the particulate matter filter 20 and multiple gaseous pollutant filters 30 to rotate circumferentially, and rotate them to the air inlet and outlet of the air purifier in turn, so as to improve the uneven adsorption of pollutants by the particulate matter filter 20 and multiple gaseous pollutant filters 30, and avoid the phenomenon that some filters or local positions of the filters have not reached their service life when users replace the filters.

[0063] like Figure 5 As shown, in some embodiments, the driving mechanism 50 drives the particulate filter 20 to rotate through the chassis 10 of the air purifier, and includes: detecting the real-time weight increment of the particulate filter 20; triggering a replacement prompt for the particulate filter 20 based on the real-time weight increment reaching a preset weight increment.

[0064] In this embodiment, during daily use of the composite filter 100, the internal gaseous pollutant filter 30 adsorbs less gaseous pollutants, and the gaseous pollutants have little effect on the weight of the gaseous pollutant filter 30. This can be achieved by adding a weight sensor 60 to the chassis 10, detecting and recording the initial weight of the entire composite filter 100, and obtaining the weight data of the composite filter 100 in the maximum CCM state through experiments. The user can then be reminded through a comparison program to replace the outer particulate filter 20 without having to replace the internal gaseous pollutant filter 30 at the same time. Compared with the particulate filter 20, the gaseous pollutant filter 30 with room temperature catalytic material is more expensive, thereby reducing the replacement and maintenance costs of the composite filter 100.

[0065] like Figure 5 As shown, in some embodiments, the driving mechanism 50 drives the particulate filter 20 to rotate through the chassis 10 of the air purifier, and includes: detecting the real-time weight increment of the particulate filter 20; detecting the local weight increment of the particulate filter 20 according to the real-time weight increment not reaching the preset weight increment; controlling the variable speed rotation of the chassis 10 according to the local weight increment of the particulate filter 20, and / or controlling the intermittent rotation of the chassis 10.

[0066] In this embodiment, by controlling the variable rotation speed of chassis 10 and / or intermittent rotation of chassis 10 based on the local weight increment of particulate filter 20, the effect of evenly adsorbing pollutants by particulate filter 20 is achieved. Specifically, at locations with smaller local weight increments, indicating less adsorbed pollutants, the speed of that location at the air inlet can be reduced, or the location can be controlled to briefly remain at the air inlet, allowing it to fully adsorb pollutants at the air inlet, thereby achieving an overall even adsorption effect for particulate filter 20.

[0067] Specifically, the weight sensor 60 includes matrix sensing units distributed along the extension direction of the particle filter 20 , and the matrix sensing units sense local weight changes of the particle filter 20 , thereby detecting the overall adsorption of pollutants by the particle filter 20 .

[0068] like Figure 5 As shown, in some embodiments, after the driving mechanism 50 drives multiple gaseous pollutant filters 30 to rotate through the chassis 10, it also includes: detecting the real-time blockage status of each gaseous pollutant filter 30; obtaining the gaseous pollutant filters 30 whose real-time blockage status does not exceed the standard, and controlling the gaseous pollutant filters 30 that do not exceed the standard to rotate to a position facing the air inlet.

[0069] In this embodiment, by controlling the gaseous pollutant filter 30 that does not exceed the standard to rotate to a position facing the air inlet, the multiple gaseous pollutant filters 30 can achieve the effect of evenly adsorbing pollutants. Specifically, the gaseous pollutant filter 30 that does not exceed the standard is rotated to the air inlet so that it can fully adsorb pollutants at the air inlet, thereby achieving the effect of overall even adsorption of pollutants by the multiple gaseous pollutant filters 30.

[0070] like Figure 5 As shown, in some embodiments, after the driving mechanism 50 drives multiple gaseous pollutant filters 30 to rotate through the chassis 10, it also includes: detecting the real-time blockage status of each gaseous pollutant filter 30; triggering a replacement prompt for the gaseous pollutant filter 30 based on the real-time blockage status of all gaseous pollutant filters 30 exceeding the standard.

[0071] In this embodiment, in order to reduce the phenomenon of clogging and failure of the gaseous pollutant filter 30, the embodiment of the present application also proposes to set an air pressure sensor on the gaseous pollutant filter 30 to detect the clogging status of each gaseous pollutant filter 30, so as to remind the user to replace and maintain the gaseous pollutant filter 30 in time, thereby reducing the clogging of the gaseous pollutant filter 30 and affecting the normal use of the composite filter 100.

[0072] like Figure 6As shown, the steps of the control method of the air purifier of the embodiment of the present application include: the air purifier is started, the weight sensor 60 detects the initial weight of the particulate filter 20, the current weight of the particulate filter 20 is periodically recorded, the current weight of the particulate filter 20 is subtracted from the initial weight of the particulate filter 20, and the real-time weight increment of the particulate filter 20 reaches the preset weight increment. When the real-time weight increment of the particulate filter 20 does not reach the preset weight increment, the current weight of the particulate filter 20 is returned to the cycle to record. When the real-time weight increment of the particulate filter 20 reaches the preset weight increment, the user is reminded to replace the particulate filter 20.

[0073] In a fourth aspect, the present invention provides a computer-readable storage medium, which, when instructions in the computer-readable storage medium are executed by a processor of an electronic device, enables the electronic device to execute the air purifier control method of the third aspect of the present invention.

[0074] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A composite filter screen, characterized in that: The composite filter screen (100) comprises: chassis (10); a particle filter (20), the particle filter (20) being arranged around the periphery of the chassis (10) and being detachably mounted to the chassis (10); a plurality of gaseous pollutant filters (30), the plurality of gaseous pollutant filters (30) being circumferentially arranged inside the particulate filter (20) and being detachably mounted to the particulate filter (20) or the chassis (10); A driving mechanism (50) is connected to the chassis (10) and drives the plurality of gaseous pollutant filters (30) and / or the particulate matter filter (20) to rotate via the chassis (10).

2. The composite filter screen according to claim 1, characterized in that: The gaseous pollutant filter (30) and the particulate filter (20) are both configured as cylindrical structures, and a plurality of the gaseous pollutant filter (30) are circumferentially arranged around the inner wall of the particulate filter (20).

3. The composite filter screen according to claim 1, characterized in that: The composite filter (100) further comprises a weight sensor (60), wherein the weight sensor (60) is arranged on the chassis (10) and is used to weigh the weight change of the particle filter (20).

4. The composite filter screen according to claim 1, characterized in that: The composite filter (100) further comprises an air pressure sensor, which is arranged on each of the gaseous pollutant filters (30) and is used to detect the clogging condition of each of the gaseous pollutant filters (30).

5. An air purifier, characterized in that: The air purifier comprises: A housing having an accommodating cavity formed therein, and the housing being provided with an air inlet and an air outlet communicating with the accommodating cavity; According to the composite filter (100) according to any one of claims 1 to 4, the composite filter (100) is arranged in the accommodating cavity and is located in the air duct between the air inlet and the air outlet.

6. A control method for an air purifier, characterized in that: The control method is implemented by the air purifier according to claim 5, and the control method includes: Obtaining the status of the air purifier; According to the air purifier being in the on state, turning on the driving mechanism (50) of the air purifier; The driving mechanism (50) drives the particle filter (20) to rotate via the chassis (10) of the air purifier, and / or the driving mechanism (50) drives multiple gaseous pollutant filters (30) to rotate via the chassis (10).

7. The control method of the air purifier according to claim 6, characterized in that: The driving mechanism (50) drives the particle filter (20) to rotate via the chassis (10) of the air purifier, and comprises: detecting a real-time weight increment of the particle filter (20); According to the real-time weight increment reaching a preset weight increment, a replacement prompt of the particle filter (20) is triggered.

8. The control method of the air purifier according to claim 6, characterized in that: The driving mechanism (50) drives the particle filter (20) to rotate via the chassis (10) of the air purifier, and comprises: detecting a real-time weight increment of the particle filter (20); detecting a local weight increment of the particle filter (20) based on the real-time weight increment not reaching a preset weight increment; The variable speed rotation of the chassis (10) is controlled according to the local weight increment of the particle filter (20), and / or the intermittent rotation of the chassis (10) is controlled.

9. The control method of the air purifier according to claim 6, characterized in that: After the driving mechanism (50) drives the plurality of gaseous pollutant filters (30) to rotate via the chassis (10), the driving mechanism (50) further comprises: Detecting the real-time clogging status of each gaseous pollutant filter (30); The gaseous pollutant filter (30) whose real-time clogging condition does not exceed the standard is obtained, and the gaseous pollutant filter (30) whose clogging condition does not exceed the standard is controlled to rotate to a position facing the air inlet.

10. The control method of the air purifier according to claim 6, characterized in that: After the driving mechanism (50) drives the plurality of gaseous pollutant filters (30) to rotate via the chassis (10), the driving mechanism (50) further comprises: Detecting the real-time clogging status of each gaseous pollutant filter (30); According to the fact that the real-time clogging conditions of all gaseous pollutant filters (30) exceed the standard, a replacement prompt for the gaseous pollutant filter (30) is triggered.

11. A computer-readable storage medium, characterized in that When the instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the control method of the air purifier according to any one of claims 6 to 10.

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