CN109985451A - The filter screen cleaning method of air purifier - Google Patents
The filter screen cleaning method of air purifier Download PDFInfo
- Publication number
- CN109985451A CN109985451A CN201910218217.2A CN201910218217A CN109985451A CN 109985451 A CN109985451 A CN 109985451A CN 201910218217 A CN201910218217 A CN 201910218217A CN 109985451 A CN109985451 A CN 109985451A
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- Prior art keywords
- strainer
- air purifier
- filter screen
- cleaning method
- dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention belongs to technical field of air purification, specifically provide a kind of filter screen cleaning method of air purifier.In order to realize the cleaning to strainer to extend the service life of strainer, save the cost of frequently replacement strainer, air purifier of the invention includes blower and dust catcher, and the blower is when rotating forward for outside air to be sucked the air purifier and is used to dry to the strainer in reversion；The dust catcher is used to absorb the dust on the strainer；The filter screen cleaning method of the air purifier includes: to judge whether the strainer needs to clean；In the case of the strainer needs to clean, controls the blower and invert and start the dust catcher.Due to that can dry after blower reversion to strainer to blow afloat the dust on strainer, the dust on strainer is being sucked out using dust catcher at this time, to realize the cleaning to strainer, ensure that the health of user.The service life of strainer can also be extended simultaneously, save the cost of frequently replacement strainer.
Description
Technical field
The invention belongs to technical field of air purification, specifically provide a kind of filter screen cleaning method of air purifier.
Background technique
The core component of air purifier is strainer and fan, and fan is sucked outside air in clarifier by rotation,
Then it pushes the air through strainer to be filtered, finally filtered gas is discharged, to realize air cleaning.Air cleaning
The strainer of device has certain service life, and with gradually being increased using the time for strainer, the pollutant accumulated on strainer can be got over
Come more, pollutant can gradually block strainer, thus strainer also can gradually be deteriorated to the filtration, purification effect of air, when strainer pair
When standard is not achieved in the filter effect of air, it is meant that strainer service life has arrived, and needs to carry out the strainer of air purifier
Replacement or cleaning.It if can clear up in time strainer, can not only guarantee the health of user, strainer can also be extended
Service life saves the cost of frequently replacement strainer.
Therefore, the invention proposes a kind of filter screen cleaning methods of air purifier to solve the above problems.
Summary of the invention
In order to solve the above problem in the prior art, in order to realize the cleaning to strainer to extend the use longevity of strainer
Life saves the cost of frequently replacement strainer, and the invention proposes a kind of filter screen cleaning method of air purifier, the air is net
Changing device includes blower and dust catcher, and the blower is when rotating forward for outside air to be sucked the air purifier and anti-
For drying to the strainer when turning；The dust catcher is used to absorb the dust on the strainer；The filter of the air purifier
Net clean method includes the following steps: S110, judges whether the strainer needs to clean；S120, it needs to clean in the strainer
In the case of, it controls the blower and inverts and start the dust catcher.
In the preferred embodiment of the filter screen cleaning method of above-mentioned air purifier, step S110 is specifically included: in institute
During stating air purifier operation, current value of the blower under current rotating speed is detected；When the current value is lower than pre-
If when current value, judging that the strainer needs to clean.
In the preferred embodiment of the filter screen cleaning method of above-mentioned air purifier, step S110 is specifically included: being obtained
The PM2.5 value of present air；When PM2.5 the first preset value of >, judge that the strainer needs to clean.
In the preferred embodiment of the filter screen cleaning method of above-mentioned air purifier, step S110 is specifically included: in institute
Before stating air purifier each run, the PM2.5 value of present air is obtained；When the PM2.5 value exceeds the second preset value,
Record the runing time of the air purifier；After the runing time is accumulative is more than default operation duration, the filter is judged
Net needs to clean.
In the preferred embodiment of the filter screen cleaning method of above-mentioned air purifier, step S110 is specifically included: being obtained
The image of the strainer；The strainer image is handled, the dust concentration on the strainer is obtained；When the dust concentration
When > presets dust concentration, judge that the strainer needs to clean.
In the preferred embodiment of the filter screen cleaning method of above-mentioned air purifier, step S110 is specifically included: in institute
During stating air purifier operation, the pressure difference between the leeward and windward side of the strainer is detected；When the pressure difference is super
When crossing preset pressure, judge that the strainer needs to clean.
In the preferred embodiment of the filter screen cleaning method of above-mentioned air purifier, step S110 is specifically included: to institute
Strainer blowing is stated to blow afloat the dust on the strainer；Detect the concentration of the dust；When the concentration > preset concentration, sentence
The strainer that breaks needs to clean.
In the preferred embodiment of the filter screen cleaning method of above-mentioned air purifier, the air inlet of the air purifier
It is provided with cover board, the cover board is used to open/closes the air inlet；The air purifier filter screen cleaning method further include:
Before executing step S120, controls the air inlet velar plate and close the air inlet.
In the preferred embodiment of the filter screen cleaning method of above-mentioned air purifier, after step S120, the sky
Gas purifier filter screen cleaning method further include: dust suction cleaning and then secondary execution step S110 are being carried out to the strainer；If
The strainer does not need to clean, then judges that the cleaning effect of the strainer is met the requirements；If the strainer also needs to clean,
Judge that the cleaning effect of the strainer is unsatisfactory for requiring.
In the preferred embodiment of the filter screen cleaning method of above-mentioned air purifier, the air purifier filter screen cleaning
Method further include: when the cleaning effect of the strainer is unsatisfactory for requiring, issues screen replacing and remind.
For the present invention in the case of strainer cleans, control blower reversion is to assist dust catcher to inhale strainer
Dirt cleaning.Due to that can dry after blower reversion to strainer to blow afloat the dust on strainer, will be filtered using dust catcher at this time
Online dust is sucked out, to realize the cleaning to strainer, ensure that the health of user.Making for strainer can also be extended simultaneously
With the service life, the cost of frequently replacement strainer is saved.
Detailed description of the invention
Fig. 1 is the broad flow diagram of the filter screen cleaning method of air purifier of the invention.
Specific embodiment
To keep the embodiment of the present invention, technical solution and advantage more obvious, below in conjunction with attached drawing to skill of the invention
Art scheme carries out clear, complete description, it is clear that and the embodiment described is a part of the embodiments of the present invention, rather than all
Embodiment.It will be apparent to a skilled person that these embodiments are used only for explaining technical principle of the invention, and
It is not intended to be limiting protection scope of the present invention.
Air purifier of the invention includes blower and dust catcher, and blower is when rotating forward for outside air to be sucked air
Clarifier and reversion when for strainer dry；Dust catcher is used to absorb the dust on strainer.
Referring to Fig.1, Fig. 1 is the broad flow diagram of the filter screen cleaning method of air purifier of the invention.As shown in Figure 1,
The filter screen cleaning method of air purifier of the invention includes the following steps: S110, judges whether strainer needs to clean；S120,
In the case of strainer needs to clean, control blower inverts and starts dust catcher.It so, can be to strainer after blower reversion
Blowing the dust on strainer is being sucked out using dust catcher at this time, with blowing afloat the dust on strainer to realize to strainer
Cleaning, ensure that the health of user.The service life of strainer can also be extended simultaneously, save the cost of frequently replacement strainer.
As an example, the dust catcher can be set in the bottom of air purifier, in order to carry out dust suction cleaning to strainer.
Preferably, the air inlet of air purifier of the invention is provided with cover board, and cover board is used to open/close air inlet.
Before executing step S120, it can control air inlet velar plate and close air inlet.On the one hand, in air purifier without using lid
Plate can prevent dust from entering inside air purifier；On the other hand, since cover board closes air inlet, dust catcher is being utilized
It can prevent dust from overflowing when to strainer dust suction cleaning, prompt dust collection efficiency.
Further, after step S120, air purifier filter screen cleaning method of the invention further include: to strainer into
Row dust suction cleaning and then secondary execution step S110；If strainer does not need to clean, judge that the cleaning effect satisfaction of strainer is wanted
It asks；If strainer also needs to clean, judge that the cleaning effect of strainer is unsatisfactory for requiring.When the cleaning effect of strainer is unsatisfactory for wanting
When asking, issues screen replacing and remind.Although being capable of portion it will be appreciated by persons skilled in the art that carrying out dust suction cleaning to strainer
The fouling product for removing strainer is distinguished, the service life of strainer is extended, but strainer still has service life eventually, therefore, this
Invention is after carrying out dust suction cleaning to strainer, by judging whether strainer needs clean mode to may determine that the strainer again
It is whether clean, if it is determined that also being cleaned, illustrates that dust suction cleaning is not clean by filter screen cleaning, illustrate at this time
The purification efficiency of strainer is poor, that is, illustrates that strainer is replaced.So, the state of strainer can be effectively distinguished,
Such as filter screen cleaning still should replace strainer, to effectively avoid frequently replacing strainer.
In a kind of specific embodiment, step S110, judging whether strainer needs the step of cleaning includes: in air
During clarifier is run, current value of the detection blower fan under current rotating speed；When current value is lower than pre-set current value, judgement
Strainer needs to clean.It will be appreciated by persons skilled in the art that current value of the blower under same rotational speed is smaller to illustrate strainer
It is dirtier, when current value is lower than pre-set current value, it can be determined that strainer needs to clean.Above-mentioned pre-set current value can be by ability
Field technique personnel select reasonably to be worth according to the actual situation.For example, obtaining strainer by test method is not occurring feelings dirty plugging
Standard current value of the blower under different rotating speeds under shape, when the real-time current value under a certain revolving speed is lower than the standard under the revolving speed
When current value, illustrate strainer start to occur it is dirty stifled, with being gradually reduced for real-time current value, strainer it is dirty stifled also increasingly tighter
Weight, those skilled in the art can select a reasonable pre-set current value (should according to different tests scene and different demands
The standard current value under pre-set current value≤same rotating speed under same rotating speed) it is clean critical as judging whether strainer needs
Value.
In a kind of specific embodiment, step S110, judging whether strainer needs the step of cleaning includes: that acquisition is worked as
The PM2.5 value of preceding air；When PM2.5 the first preset value of >, judge that strainer needs to clean.Specifically, PM2.5 indicates every cube
The content of fine particulates in rice air, such as 10 micrograms/cubic meter PM2.5 concentration index is 10, and PM2.5 value of the invention is
PM2.5 concentration index.It will be appreciated by persons skilled in the art that whether strainer dirty stifled or how long can be dirty, this with work as
Preceding air quality (PM2.5 value) has much relations, when air quality is poor, dirty fast of strainer；When the air quality is good,
Dirty slow of strainer.Therefore, the present invention determines whether strainer needs automatically cleaning according to air quality.First preset value can be by this
Field technical staff determines according to actual conditions, such as 120,150 etc..
In a kind of specific embodiment, step S110, judging whether strainer needs the step of cleaning includes: in air
Before clarifier each run, the PM2.5 value of present air is obtained；When PM2.5 value exceeds the second preset value, record air is net
Change the runing time of device；Add up to be more than after presetting operation duration, to judge that strainer needs to clean between when running.Specifically, the reality
Example is applied using total accumulated running time of the air purifier in environment of the PM2.5 value beyond the second preset value is to judge strainer
It is no to need to clean.As an example it is supposed that second preset value is 150 (PM2.5 concentration indexs), air purifier is in the PM2.5
Environment in run four hours, then record runing time be 4 hours.When the air purifier of bulk registration is super in PM2.5
Crossing operation duration in 150 environment is more than after presetting operation duration, it can be determined that strainer is dirtier, i.e., strainer needs to clean.This is pre-
If operation duration can be determined according to the second preset value of selection, such as be tested (such as according to the second preset value of selection
Make air purifier in environment of the PM2.5 beyond the second preset value continuous service until the dirty of strainer stifled reaches when needing to clean
Until, record total operation duration), determine the default operation duration.Those skilled in the art can select according to the actual situation
Arbitrary value between reasonable second preset value, such as the second preset value selection 120-150.
In a kind of specific embodiment, step S110, judging whether strainer needs the step of cleaning includes: to obtain filter
The image of net；Strainer image is handled, the dust concentration on strainer is obtained；When dust concentration > presets dust concentration,
Judge that strainer needs to clean.Specifically, after getting strainer image, the strainer image is handled first, obtains strainer
Dirty degree.The step can use picture recognition module realization.About picture recognition module it should be noted that the image is known
Other module can select any existing chip for image procossing, as long as can be realized to image analysis processing to obtain dirt
The purpose of turbidity.For example, the strainer image and clean strainer that can be will acquire (do not cover the dirts such as dust
Object) image compares, obtains the amount of dust on current strainer image, the dirt of the amount of dust is then calculated according to set algorithm
Degree.Those skilled in the art can also calculate the dirty degree on strainer using any other reasonable algorithm, herein no longer into
Row is described in detail.In addition, the default dust can flexibly be set by the actual needs of those skilled in the art different regions
It is fixed.For example, can be according to following standard setting: presetting dust concentration dirt degree below and represent the dirty stifled degree of strainer also at this
It does not need to be cleaned；Necessary progress has been arrived in the dirty stifled degree that the dirty degree for presetting dust concentration or more represents strainer
Cleaning.And specific dirty stifled degree can be determined according to modes such as experiment, empirical values, and then determine that reasonably default dust is dense
Degree, as long as dust concentration is greater than the default dust concentration and judges that strainer needs to clean.
In a kind of specific embodiment, step S110, judging whether strainer needs the step of cleaning includes: in air
During clarifier is run, the pressure difference between the leeward of strainer and windward side is detected；When pressure difference is more than preset pressure, sentence
Disconnected strainer needs to clean.It will be appreciated by persons skilled in the art that the pressure difference between the leeward and windward side of strainer is bigger
Illustrate that strainer is dirtier, when the pressure difference is more than preset pressure, illustrates that strainer is very dirty, cleaned.The preset pressure
It can be selected reasonably to be worth according to the actual situation by those skilled in the art.Do not going out for example, obtaining strainer by test method
The standard pressure difference between leeward and windward side under existing situation dirty plugging, when real-time pressure difference is greater than the standard pressure difference, explanation
Strainer start to occur it is dirty stifled, as real-time pressure difference is gradually increased, strainer it is dirty stifled also increasingly severe, those skilled in the art can
To select a reasonable preset pressure (preset pressure >=standard pressure difference) to make according to different tests scene and different demands
For critical value.
In a kind of specific embodiment, step S110, judging whether strainer needs the step of cleaning includes: to strainer
Blowing is to blow afloat the dust on strainer；Detect the concentration of dust；When concentration > preset concentration, judge that strainer needs to clean.It closes
In preset concentration, those skilled in the art can flexibly set according to actual needs, for example, can be obtained by test method
Dust concentration influences the critical value of strainer filtering efficiency, then determines reasonable preset concentration according to the critical value.Relative to
The mode of dust on strainer is directly detected, the present invention can more accurately detect the ash on strainer by way of drying to strainer
Dust concentration, to accurately judge whether strainer needs to clean.
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of filter screen cleaning method of air purifier, which is characterized in that the air purifier includes blower and dust catcher,
The blower is when rotating forward for outside air to be sucked the air purifier and is used to blow to the strainer in reversion
Wind；The dust catcher is used to absorb the dust on the strainer；
The filter screen cleaning method of the air purifier includes the following steps:
S110, judge whether the strainer needs to clean；
S120, the strainer need clean in the case of, control the blower and invert and start the dust catcher.
2. the filter screen cleaning method of air purifier according to claim 1, which is characterized in that step S110 is specifically wrapped
It includes:
During air purifier operation, current value of the blower under current rotating speed is detected；
When the current value is lower than pre-set current value, judge that the strainer needs to clean.
3. the filter screen cleaning method of air purifier according to claim 1, which is characterized in that step S110 is specifically wrapped
It includes:
Obtain the PM2.5 value of present air；
When PM2.5 the first preset value of >, judge that the strainer needs to clean.
4. the filter screen cleaning method of air purifier according to claim 1, which is characterized in that step S110 is specifically wrapped
It includes:
Before the air purifier each run, the PM2.5 value of present air is obtained；
When the PM2.5 value exceeds the second preset value, the runing time of the air purifier is recorded；
After the runing time is accumulative is more than default operation duration, judge that the strainer needs to clean.
5. the filter screen cleaning method of air purifier according to claim 1, which is characterized in that step S110 is specifically wrapped
It includes:
Obtain the image of the strainer；
The strainer image is handled, the dust concentration on the strainer is obtained；
When the dust concentration > presets dust concentration, judge that the strainer needs to clean.
6. the filter screen cleaning method of air purifier according to claim 1, which is characterized in that step S110 is specifically wrapped
It includes:
During air purifier operation, the pressure difference between the leeward and windward side of the strainer is detected；
When the pressure difference is more than preset pressure, judge that the strainer needs to clean.
7. the filter screen cleaning method of air purifier according to claim 1, which is characterized in that step S110 is specifically wrapped
It includes:
It dries to the strainer to blow afloat the dust on the strainer；
Detect the concentration of the dust；
When the concentration > preset concentration, judge that the strainer needs to clean.
8. the filter screen cleaning method of air purifier according to any one of claim 1 to 7, which is characterized in that described
The air inlet of air purifier is provided with cover board, and the cover board is used to open/closes the air inlet；
The air purifier filter screen cleaning method further include:
Before executing step S120, controls the air inlet velar plate and close the air inlet.
9. air purifier filter screen cleaning method according to any one of claim 1 to 7, which is characterized in that in step
After S120, the air purifier filter screen cleaning method further include:
Dust suction cleaning and then secondary execution step S110 are being carried out to the strainer；
If the strainer does not need to clean, judge that the cleaning effect of the strainer is met the requirements；If the strainer also needs
It cleans, then judges that the cleaning effect of the strainer is unsatisfactory for requiring.
10. the filter screen cleaning method of air purifier according to claim 9, which is characterized in that the air purifier
Filter screen cleaning method further include:
When the cleaning effect of the strainer is unsatisfactory for requiring, issues screen replacing and remind.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218217.2A CN109985451A (en) | 2019-03-21 | 2019-03-21 | The filter screen cleaning method of air purifier |
| PCT/CN2020/079887 WO2020187223A1 (en) | 2019-03-21 | 2020-03-18 | Method for cleaning filter screen of air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218217.2A CN109985451A (en) | 2019-03-21 | 2019-03-21 | The filter screen cleaning method of air purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109985451A true CN109985451A (en) | 2019-07-09 |
Family
ID=67130706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910218217.2A Pending CN109985451A (en) | 2019-03-21 | 2019-03-21 | The filter screen cleaning method of air purifier |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109985451A (en) |
| WO (1) | WO2020187223A1 (en) |
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| CN110619361A (en) * | 2019-09-10 | 2019-12-27 | 北京小米智能科技有限公司 | Method for predicting filter element blockage and device for predicting filter element blockage |
| CN110887179A (en) * | 2019-10-17 | 2020-03-17 | 珠海格力电器股份有限公司 | Air conditioner filter screen cleaning control method, computer readable storage medium and air conditioner |
| CN111336621A (en) * | 2020-04-09 | 2020-06-26 | 深圳市怡盛源净水产业有限公司 | Environment-friendly air purification device |
| WO2020187223A1 (en) * | 2019-03-21 | 2020-09-24 | 青岛海尔空调器有限总公司 | Method for cleaning filter screen of air purifier |
| CN112628972A (en) * | 2020-12-25 | 2021-04-09 | 珠海格力电器股份有限公司 | Dust sensor cleaning control method, device and system and air conditioner |
| CN113237179A (en) * | 2021-06-24 | 2021-08-10 | 河南省肿瘤医院 | Multi-person ward air purification system and method |
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| CN114811805A (en) * | 2022-04-25 | 2022-07-29 | 珠海格力电器股份有限公司 | Self-cleaning method and device for filter screen of electric appliance |
| CN115218419A (en) * | 2022-07-01 | 2022-10-21 | 宁波奥克斯电气股份有限公司 | Fresh air conditioner control method and device and fresh air conditioner |
| CN115355597A (en) * | 2022-08-31 | 2022-11-18 | 青岛海尔空调器有限总公司 | Method and device for detecting contamination of HEPA (high efficiency particulate air) network |
| CN115597123A (en) * | 2022-10-14 | 2023-01-13 | 青岛海信日立空调系统有限公司（Cn） | All-in-one fresh air conditioner |
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| WO2020187223A1 (en) * | 2019-03-21 | 2020-09-24 | 青岛海尔空调器有限总公司 | Method for cleaning filter screen of air purifier |
| CN110619361A (en) * | 2019-09-10 | 2019-12-27 | 北京小米智能科技有限公司 | Method for predicting filter element blockage and device for predicting filter element blockage |
| CN110887179A (en) * | 2019-10-17 | 2020-03-17 | 珠海格力电器股份有限公司 | Air conditioner filter screen cleaning control method, computer readable storage medium and air conditioner |
| CN113464992A (en) * | 2020-03-30 | 2021-10-01 | 宁波方太厨具有限公司 | Building intelligence system of discharging fume |
| CN111336621A (en) * | 2020-04-09 | 2020-06-26 | 深圳市怡盛源净水产业有限公司 | Environment-friendly air purification device |
| CN112628972B (en) * | 2020-12-25 | 2022-05-27 | 珠海格力电器股份有限公司 | Dust sensor cleaning control method, device and system and air conditioner |
| CN112628972A (en) * | 2020-12-25 | 2021-04-09 | 珠海格力电器股份有限公司 | Dust sensor cleaning control method, device and system and air conditioner |
| CN113294889A (en) * | 2021-05-24 | 2021-08-24 | 青岛海尔空调电子有限公司 | Combined air conditioning system and control mode thereof |
| CN113237179A (en) * | 2021-06-24 | 2021-08-10 | 河南省肿瘤医院 | Multi-person ward air purification system and method |
| WO2023029554A1 (en) * | 2021-08-30 | 2023-03-09 | 重庆海尔空调器有限公司 | Control method for outdoor unit of fresh air conditioner, and fresh air conditioner |
| CN114811805A (en) * | 2022-04-25 | 2022-07-29 | 珠海格力电器股份有限公司 | Self-cleaning method and device for filter screen of electric appliance |
| CN115218419A (en) * | 2022-07-01 | 2022-10-21 | 宁波奥克斯电气股份有限公司 | Fresh air conditioner control method and device and fresh air conditioner |
| CN115355597A (en) * | 2022-08-31 | 2022-11-18 | 青岛海尔空调器有限总公司 | Method and device for detecting contamination of HEPA (high efficiency particulate air) network |
| WO2024045659A1 (en) * | 2022-08-31 | 2024-03-07 | 青岛海尔空调器有限总公司 | Hepa dirt detection method and apparatus |
| CN115597123A (en) * | 2022-10-14 | 2023-01-13 | 青岛海信日立空调系统有限公司（Cn） | All-in-one fresh air conditioner |
| CN118912628A (en) * | 2024-09-20 | 2024-11-08 | 苏州纽泰工程设备有限公司 | Indoor air purifying device |
| CN118912628B (en) * | 2024-09-20 | 2025-01-03 | 苏州纽泰工程设备有限公司 | Indoor air purifying device |
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