CN106474839A - Obtain method, device and its air purifier of screen pack service efficiency value - Google Patents
Obtain method, device and its air purifier of screen pack service efficiency value Download PDFInfo
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- CN106474839A CN106474839A CN201510551117.3A CN201510551117A CN106474839A CN 106474839 A CN106474839 A CN 106474839A CN 201510551117 A CN201510551117 A CN 201510551117A CN 106474839 A CN106474839 A CN 106474839A
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Abstract
The present invention provides a kind of method for obtaining the screen pack service efficiency value for air purifier, including：Measure the atmospheric pressure value of the screen pack both sides；Calculate the air pressure difference of the screen pack both sides；The service efficiency value of the screen pack is obtained according to the air pressure difference in default database.The present invention also provides a kind of corresponding device, including：Baroceptor, for measuring the atmospheric pressure value of the screen pack both sides；Database, for recording the corresponding relation of the air pressure difference of the screen pack both sides and the service efficiency value of the screen pack；Data processing module, the atmospheric pressure value for being measured according to the baroceptor calculate the air pressure value difference of the screen pack both sides, and obtain the corresponding screen pack service efficiency value of the air pressure difference of the screen pack both sides in the database.The method and device of the service efficiency value of screen pack is obtained by the present invention, can accurately be judged the use state of screen pack, be reached the purpose at utmost using filter screen of air purifier.
Description
Technical field
The present invention relates to air purifier control field, in particular it relates to the mistake for air purifier
The acquisition methods of the service efficiency value of filter screen, device and air purifier.
Background technology
Air purifier is the device for referring to adsorb, decompose or convert various air pollutants.Empty
Gas purifier generally comprises the air sensing of screen pack, blower fan, processor and sensing air purity
Device.The operation principle of air purifier is as follows：Air borne sensor sensing air purity is simultaneously transmitted corresponding
Signal is to the processor of air purifier；Processor goes out to play optimum filtration according to the signal of change
The rotation speed of fan of effect, and an automatically controlled signal control fan leaf is produced in corresponding rotational speed；
Blower fan is rotated and for the air in air to blow to screen pack, air through filter screen filtration, by air
In various pollutants remove or absorption after send the new air of cleaning.With the increase of working time,
Contaminant particle on screen pack builds up, and therefore after work a period of time, needs to change
Filter screen is to ensure the working effect of air purifier.
In prior art, the method for calculating screen pack use time is continuing for the simple screen pack that adds up
Use time (i.e. history use time), when the lasting use time of screen pack is equal to or more than factory
During the service life of the preset screen pack of business, it is necessary to change screen pack.
The side of the screen pack service life that the lasting use time according only to screen pack of prior art judges
Method can not accurately judge that out the situation that screen pack is used, for example：The default service life of screen pack
For 12 months, under the relatively low environment of air purity, using frequently, blower fan turns air purifier
Speed is higher, and the service life of screen pack is often arrived 12 months in this case.Equally, in sky
Under the higher environment of gas cleanliness factor, the life-span that screen pack is used may be more than 12 months.Therefore existing
There is the method that screen pack service life is judged in technology maximally utilise screen pack, cause to make
Filter screen filtration ability is become to waste, or the problem of screen pack satiety failure.
Content of the invention
In order to solve problem above, the invention provides a kind of screen pack obtained for air purifier
Service efficiency value method, the effective use state of screen pack can be obtained by this method, most
Big degree utilizes screen pack.This method includes：
Measure the atmospheric pressure value of the screen pack both sides；Calculate the air pressure difference of the screen pack both sides；
The service efficiency value of the screen pack is obtained according to the air pressure difference in default database.
Preferably, the use of the screen pack is obtained in default database according to the air pressure difference
Efficiency value includes：
Judge whether the air pressure difference reaches preset value, when the air pressure difference reaches preset value,
Screen pack service efficiency value is obtained in default database.
Preferably, the atmospheric pressure value of the screen pack both sides is measured；Calculate the air pressure of the screen pack both sides
Before difference, further include：
The running time of the screen pack is obtained, judges that the running time of the screen pack is
No reach preset value；When the running time of the screen pack reaches preset value, the mistake is measured
The atmospheric pressure value of filter screen both sides, calculates the air pressure difference of the screen pack both sides.
Preferably, the running time of the screen pack is obtained, judges the actual work of the screen pack
Make whether the time reaches preset value；When the running time of the screen pack reaches preset value, enter
One step includes：
Air quality information of the measurement after the filter screen filtration, judges whether air quality closes
Lattice；Be judged as underproof in the case of, measure the atmospheric pressure value of the screen pack both sides, calculate described
The air pressure difference of screen pack both sides.
Preferably, when the screen pack service efficiency value meets or exceeds preset value, user is pointed out more
Change the screen pack.
In terms of another according to embodiments of the present invention, additionally provide one kind and obtain for air cleaning
The device of the screen pack service efficiency value of device, including：
Baroceptor, for measuring the atmospheric pressure value of the screen pack both sides；
Database, for recording the air pressure difference of the screen pack both sides with the screen pack using effect
The corresponding relation of rate value；
Data processing module, the atmospheric pressure value for being measured according to the baroceptor calculate the filtration
The air pressure value difference of net both sides, and obtain the air pressure difference pair of the screen pack both sides in the database
The screen pack service efficiency value that answers.
Preferably, further include：
Screen pack work timer, for the running time of record filtering net；
Data judge module, for judging the reality of the screen pack of screen pack work timer record
Whether the working time reaches preset value, and when the running time of screen pack reaches preset value,
The data processing module calculates the screen pack both sides according to the atmospheric pressure value that the baroceptor is measured
Air pressure value difference, and obtain the corresponding mistake of the air pressure difference of the screen pack both sides in the database
Filter screen service efficiency value.
Preferably, further include：
Air mass sensor, for air quality information of the measurement after the filter screen filtration；
Data judge module, for judging the reality of the screen pack of screen pack work timer record
Whether the working time reaches preset value, and when the running time of screen pack reaches preset value,
Judge whether the air quality information that the air mass sensor is measured is qualified；When the sky
When gas quality information is unqualified, the data processing module is according to the baroceptor (103)
The atmospheric pressure value of measurement calculates the air pressure value difference of the screen pack both sides, and obtains institute in the database
State the corresponding screen pack service efficiency value of air pressure difference of screen pack both sides.
Preferably, further include：Reminding module (106), for when the use of the screen pack
When efficiency is higher than preset value, user is pointed out to change the screen pack.
In terms of another according to embodiments of the present invention, a kind of air purifier is additionally provided, including
The above-described device obtained for the screen pack service efficiency value in air purifier.
By the service efficiency value for obtaining the screen pack for air purifier provided in an embodiment of the present invention
Method, device and air purifier, according to measured air quality, screen pack working time
And the air pressure difference of screen pack both sides, the service efficiency value of screen pack is obtained, and prompting is changed accordingly
Filter screen.Thus reach at utmost using filter screen of air purifier, saved customer using cost.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be right
Needed for embodiment or description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that,
Drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art
For, on the premise of not paying creative work, can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 be screen pack both sides draught head according to embodiments of the present invention with screen pack service efficiency value it
Between corresponding relation schematic diagram；
Fig. 2 is the screen pack use effect judged for air purifier according to an embodiment of the invention
The method flow diagram of rate value；
Fig. 3 is that judgement according to a different embodiment is made for the screen pack of air purifier
Method flow diagram with efficiency value；
Fig. 4 is the screen pack use effect judged for air purifier according to an embodiment of the invention
The apparatus structure schematic diagram of rate value；
Fig. 5 is that judgement according to a different embodiment is made for the screen pack of air purifier
Apparatus structure schematic diagram with efficiency value；
Fig. 6 is that judgement according to a different embodiment is made for the screen pack of air purifier
Apparatus structure schematic diagram with efficiency value.
Specific embodiment
By describing technology contents, structural feature, the purpose that realizes and the technology effect of the present invention in detail
Really, below by way of specific embodiment and combine accompanying drawing and be described in further details.
Screen pack service efficiency value can be to cause as contaminant particle is accumulated inside measures filtration net
Whether blocking has had influence on the using effect of filter screen.Due to contaminant particle accumulation on screen pack
The blocking for causing, can cause the draught head of the air-flow by screen pack to produce significant change.For sky
The service efficiency value (PE) of the screen pack of gas purifier between screen pack draught head (DP) corresponding
Relation is as shown in Figure 1.Specifically, the relation of variable is represented with below equation：
PE=f (DP, L, F, E)；Wherein：
L represents the structural parameters determined by filter screen structure；
F represents the flow parameter determined by the mean speed of fan；
E represents ambient parameter.
In addition, can also have other parameters for needing consideration according to specific application scenario.In air-flow
Before filter screen filtration, and screen pack both sides air pressure difference DP after the filter screen filtration
Bigger, the blocking that representative is caused due to contaminant particle is increasing, has had influence on the filtration of screen pack
Effect, the service efficiency PE value in turn resulting in screen pack reduce.As shown in figure 1, through in the
The draught head DP1 of the air-flow of the screen pack both sides of one working condition is less than in work two-state
The mistake under the first working condition corresponding to draught head DP2, the DP1 of the air-flow of screen pack both sides
Service efficiency value PE1 of filter screen be higher than in the second working condition under screen pack service efficiency value
DP2.Therefore the draught head of the air-flow by screen pack both sides is measured, it is possible to obtain corresponding screen pack
Service efficiency, and then the working condition of measures filtration net.
One embodiment with reference to disclosed in Fig. 2, is to judge to use for the screen pack of air purifier
The method of efficiency value, the method are specifically included：
S1：The atmospheric pressure value of the screen pack both sides in measurement air purifier；And calculate the screen pack two
The air pressure difference of side；Preferably, the atmospheric pressure value that can be obtained for measurement averages process and obtains
Mean value.For example：By corresponding control system, adjust sample frequency data and rate mode is removed, real
Existing handling averagely.Preferably, it is possible to achieve per 10 minutes, sampling once, was then done per 24 hours
Once average.Preferably, atmospheric pressure value can be dynamic pressure value, or static pressure.
S2：According to the air pressure difference obtained by calculating, in default database, search and obtain correspondence
Screen pack service efficiency value.Specifically, by contrasting air pressure of the air-flow through both sides before and after screen pack
Difference, can obtain the atmospheric pressure lost caused due to the presence of filter screen.Default database purchase gas
The service efficiency value of the corresponding screen pack of pressure difference.Screen pack service efficiency value can be with measures filtration net
Whether the blocking that portion is caused due to particle accumulation has had influence on the service efficiency of filter screen；Under for example
Table：
| Air pressure difference (pa) | Screen pack service efficiency value |
| 25 | 98% |
| 50 | 95% |
| 120 | 80% |
| 150 | 70% |
| 200 | 50% |
When the air pressure difference of screen pack both sides is increasing, corresponding screen pack service efficiency persistently drops
Low.Alternatively, before corresponding screen pack service efficiency value is obtained according to air pressure difference, also judge
Whether the air pressure difference of the screen pack both sides reaches preset value；I.e. when the air pressure of the screen pack both sides
When difference reaches default value, corresponding screen pack service efficiency value is obtained in presetting database.Example
If default air pressure difference is 200pa, when calculating screen pack both sides air pressure difference more than 200pa
When, start to search and obtain corresponding screen pack service efficiency value in presetting database.
Fig. 3 is the another of the method for screen pack effective storage life in a kind of judgement air purifier of the present invention
One embodiment.In order to accurately judge whether the screen pack for air purifier is close to service life,
Before the service efficiency value for obtaining screen pack, the time used of screen pack is first judged and through filtering
The air quality of net filtration, the method for the present embodiment are comprised the following steps：
S1’：Obtain the time used of screen pack；
S2’：Judge whether the running time of the screen pack reaches preset value；Judging
In the case of reaching the preset value, alternatively, also include：
S3’：Obtain the air quality information through filter screen filtration；
S4’：Judge whether preset value is less than through the air quality of filter screen filtration；
S5’：When the air quality through filter screen filtration is less than preset value, according to calculated
The air pressure difference of both sides before and after screen pack；
S6’：Alternatively, also judge whether the air pressure difference of the screen pack both sides reaches preset value；
S7’：When the air pressure difference of the screen pack both sides reaches default value, in default data
The service efficiency value of corresponding screen pack is searched and is obtained in storehouse；Alternatively, this method also includes：
S8’：When the service efficiency value of screen pack is up to or over default service efficiency value, carry
Show replacing screen pack.Now judge that the use state of screen pack has reached at full capacity, and be close to make
Use the life-span.Therefore according to service efficiency value and the default threshold value result of the comparison of screen pack, work as filtration
The service efficiency value of net is in up to or in the state of during default service efficiency value, is pointed out more
Change filter screen.For example, it is assumed that screen pack air pressure difference set in advance (needs to change the reference of filter screen
Air pressure difference) it is 200pa, and the pressure differential of brand-new filter screen is 10pa.In practical application, such as
The filter screen draught head mean value of fruit measurement is 120pa, and its value is not then pointed out to change filter less than 200pa
Net；If the filter screen pressure differential mean value of measurement is 220pa, more than reference value 200pa, therefore carry
Show replacing filter screen.
Before screen pack service efficiency is obtained according to screen pack both sides air pressure difference, first determine whether to filter
The time used of net and the air quality after filter screen filtration, more can accurately judge that
The service condition of screen pack.
Fig. 3 is the dress of the acquisition for the screen pack service efficiency value of air purifier of the embodiment of the present invention
Put, the device includes：
Baroceptor 101, for measuring the air pressure of the screen pack both sides；Specifically, screen pack
Before be provided with the first baroceptor, to adopting through the air-flow gross pressure of filter screen filtration
Sample, obtains the first atmospheric pressure value；The second baroceptor is provided with after screen pack, to through screen pack mistake
Air-flow after filter carries out sampling and obtains the second atmospheric pressure value.Preferably, the first baroceptor and the second gas
Pressure sensor is high-precision pressure sensor；Database 105, for storing the screen pack both sides
Corresponding relation between the service efficiency value of air pressure difference and the screen pack；Data processing module
104, for the first air pressure obtained according to measured by the first baroceptor, the second baroceptor
Value and the second atmospheric pressure value calculate the air pressure value difference of the screen pack both sides；And obtain in the database
The corresponding screen pack service efficiency value of the air pressure difference of the screen pack both sides.
Alternatively, the device also includes：
Screen pack work timer 102, for the running time of record filtering net.Data judge
Module 107, for judging the real work of the screen pack of the screen pack work record of timer 102
Whether the time reaches preset value, and when the running time of screen pack reaches preset value, described
Data processing module 104 calculates the screen pack according to the atmospheric pressure value that the baroceptor 103 is measured
The air pressure value difference of both sides, and the air pressure difference of the screen pack both sides is obtained in the database 105
Corresponding screen pack service efficiency value；
In order to more accurately judge the service condition of screen pack, can also add after filter screen filtration
This factor of judgment of air quality, that is, obtain the dress of the screen pack service efficiency value for air purifier
Putting also includes：Air mass sensor 103, the air mass sensor are generally arranged at screen pack
Afterwards, the air quality information for measurement after the filter screen filtration.Data judge module 107
Judge the screen pack work timer 102 record screen pack running time whether reach pre-
If value, and when the running time of screen pack reaches preset value, continue to judge the air matter
Whether the air quality information that quantity sensor 103 is measured is qualified；When the air quality information
For unqualified when, the air pressure that the data processing module 104 is measured according to the baroceptor 103
Value calculates the air pressure value difference of the screen pack both sides, and obtains the filtration in the database 105
The corresponding screen pack service efficiency value of air pressure difference of net both sides.
Alternatively, the device for obtaining the screen pack service efficiency value for air purifier also includes：Carry
Show module 106, for when the service efficiency value of the screen pack is higher than preset value, pointing out user more
Change the screen pack.
Fig. 5 and Fig. 6 are the screen pack of the embodiment of the present invention and centrifugal fan the combines field for using
Scape.The second baroceptor being arranged on rear side of the first baroceptor and screen pack on front side of screen pack
It is preferably disposed in the airflow path by effective screen area of screen pack.Wherein effective filtering net surface
Product refers to, during filter screen filtration, be crossed the filtration mesh portions that air filtering can be passed through.Namely
It is to play the filter screen part for effectively filtering left and right.Preferably, first gas pressure sensor is set
Put to obtain best measurement effect in the geometric center of effective screen area.
As shown in fig. 6, specifically including：Screen pack 201, screen pack shell 202, centrifugal fan
Flabellum 203, centrifugal fan housing 204.The flabellum 203 of centrifugal fan is located at screen pack
201 underface, in the effective area such as Fig. 6 of screen pack shown in dotted line position.Due to centrifugal wind
The air inlet of machine is relatively small, in order to realize the effectively utilizes to area of filter net size, can be in mistake
A boss is set up on filter screen shell 202 so that between screen pack 201 and screen pack housing 202
There is a gap, so that more screen area is effectively utilized.First air pressure
Sensor be arranged on through the air-flow air inlet duct of the effective filtration area of screen pack in optional position, excellent
Selection of land, as illustrated, the first baroceptor 205 can be arranged in the geometry of effective screen area
In the heart, will be through the atmospheric pressure value of the air-flow of filter screen filtration for measurement；Second baroceptor
In 206 air flow duct for being arranged on centrifugal fan air outlet, for measurement after filter screen filtration
Atmospheric pressure value.
In sum, using the method for the service efficiency value of the acquisition screen pack of the embodiment of the present invention, dress
Put, can efficiently and accurately judge use state and the life-span of screen pack, so as to the time when closing
Prompting user changes screen pack, to ensure the normally and efficiently use of air purifier.
Obviously, those skilled in the art can carry out various changes and modification to embodiments of the invention
Without departing from the spirit and scope of the present invention.So, if these modifications and modification belong to the present invention's
Within the scope of claim and its equivalent technologies, then the present invention is also intended to comprising these changes and modification
Including.
Claims (10)
1. a kind of method for obtaining the screen pack service efficiency value for air purifier, its feature exist
In, including：
Measure the atmospheric pressure value of the screen pack both sides；Calculate the air pressure difference of the screen pack both sides；
The service efficiency value of the screen pack is obtained according to the air pressure difference in default database.
2. the screen pack service efficiency value obtained for air purifier according to claim 1
Method, it is characterised in that the filtration is obtained according to the air pressure difference in default database
The service efficiency value of net includes：
Judge whether the air pressure difference reaches preset value, when the air pressure difference reaches preset value,
Screen pack service efficiency value is obtained in default database.
3. the screen pack service efficiency value obtained for air purifier according to claim 2
Method, it is characterised in that the atmospheric pressure value of the measurement screen pack both sides；Calculate the screen pack two
Before the air pressure difference of side, further include：
The running time of the screen pack is obtained, judges that the running time of the screen pack is
No reach preset value；When the running time of the screen pack reaches preset value, the mistake is measured
The atmospheric pressure value of filter screen both sides, calculates the air pressure difference of the screen pack both sides.
4. the screen pack service efficiency value obtained for air purifier according to claim 3
Method, it is characterised in that obtain the running time of the screen pack, judge the screen pack
Running time whether reach preset value；Reach in the running time of the screen pack default
During value, further include：
Air quality information of the measurement after the filter screen filtration, judges whether air quality closes
Lattice；Be judged as underproof in the case of, measure the atmospheric pressure value of the screen pack both sides, calculate described
The air pressure difference of screen pack both sides.
5. the acquisition according to Claims 1-4 any one is for the filtration of air purifier
The method of net service efficiency value, it is characterised in that when the screen pack service efficiency value meets or exceeds
During preset value, user is pointed out to change the screen pack.
6. a kind of device for obtaining the screen pack service efficiency value for air purifier, its feature exist
In, including：
Baroceptor (103), for measuring the atmospheric pressure value of the screen pack both sides；
Database (105), for recording the air pressure difference of the screen pack both sides and the screen pack
Service efficiency value corresponding relation；
Data processing module (104), for the air pressure measured according to the baroceptor (103)
Value calculates the air pressure value difference of the screen pack both sides, and obtains in the database (105) described
The corresponding screen pack service efficiency value of the air pressure difference of screen pack both sides.
7. the screen pack service efficiency value obtained for air purifier according to claim 6
Device, it is characterised in that further include：
Screen pack work timer (102), for the running time of record filtering net；
Data judge module (107), for judging screen pack work timer (102) record
The running time of screen pack whether reach preset value, and the running time when screen pack
When reaching preset value, data processing module (104) are surveyed according to the baroceptor (103)
The atmospheric pressure value of amount calculates the air pressure value difference of the screen pack both sides, and in the database (105)
Obtain the corresponding screen pack service efficiency value of air pressure difference of the screen pack both sides.
8. the screen pack service efficiency value obtained for air purifier according to claim 6
Device, it is characterised in that further include：
Air mass sensor (103), for air matter of the measurement after the filter screen filtration
Amount information；
Data judge module (107), for judging screen pack work timer (102) record
The running time of screen pack whether reach preset value, and the running time when screen pack
When preset value is reached, the air quality that the air mass sensor (103) is measured is judged
Whether information is qualified；When the air quality information is unqualified, the data processing module
(104) the screen pack both sides are calculated according to the atmospheric pressure value that the baroceptor (103) is measured
Air pressure value difference, and the air pressure difference pair of the screen pack both sides is obtained in the database (105)
The screen pack service efficiency value that answers.
9. the acquisition according to claim 6 to 8 any one is for the filtration of air purifier
The device of net service efficiency value, it is characterised in that further include：Reminding module (106), uses
In when the service efficiency of the screen pack is higher than preset value, user is pointed out to change the screen pack.
10. a kind of air purifier, it is characterised in that be used for including the acquisition described in claim 9
The device of the screen pack service efficiency value in air purifier.
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| CN112145291A (en) * | 2020-09-08 | 2020-12-29 | 潍柴重机股份有限公司 | Filter element maintenance prompting method based on front-back pressure difference trend of filter |
| CN112337231A (en) * | 2019-08-07 | 2021-02-09 | 广达电脑股份有限公司 | Electronic device with air filter and method for monitoring air filter state |
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| WO2018214091A1 (en) * | 2017-05-22 | 2018-11-29 | 邹剑寒 | Air purifier |
| CN107589057A (en) * | 2017-09-19 | 2018-01-16 | 天钥光电（湖北）股份有限公司 | A kind of air pressure detection method and air filter screen life detecting method |
| CN108361916A (en) * | 2018-01-09 | 2018-08-03 | 深圳市飓风智云科技有限公司 | The real-time air duct filter net jam deciding degree system and method for intelligence |
| CN108361916B (en) * | 2018-01-09 | 2020-06-19 | 深圳市飓风智云科技有限公司 | Intelligent real-time air duct filter screen blockage degree judging system and method |
| CN112337231A (en) * | 2019-08-07 | 2021-02-09 | 广达电脑股份有限公司 | Electronic device with air filter and method for monitoring air filter state |
| CN112145291A (en) * | 2020-09-08 | 2020-12-29 | 潍柴重机股份有限公司 | Filter element maintenance prompting method based on front-back pressure difference trend of filter |
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