CN1235060A - Method for determining filter replacement time of air - Google Patents
Method for determining filter replacement time of air Download PDFInfo
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- CN1235060A CN1235060A CN99104608A CN99104608A CN1235060A CN 1235060 A CN1235060 A CN 1235060A CN 99104608 A CN99104608 A CN 99104608A CN 99104608 A CN99104608 A CN 99104608A CN 1235060 A CN1235060 A CN 1235060A
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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
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
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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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0038—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions with means for influencing the odor, e.g. deodorizing substances
Abstract
A method of controlling air cleaner, which confirms exact percolator replacing time by using the weighted relative to the air pollution degree examined by the gas sensor. The method of exacting the percolator replacing time comprises the steps of: (1) examining the air pollution degree when the air cleaner is driven, (2) comparing the examined air pollution degree to at least one presettable reference value, applying corresponding weighted, (3) confirming the percolator replacing time by weighted and percolator replacing time. According to the invention, the percolator avoid waste and purification effect avoid reduce by the exacting percolator replacing time.
Description
The present invention relates to control the method for air purifier, the filter that is specifically related to air purifier is changed definite method of time, and it has utilized the weighting corresponding to the room air pollution degree that is recorded by gas sensor device.
Usually, air purifier is a kind of purifier of room air, and it is collected by dust, and sterilization and taste removal purify the room air that is polluted by dust, bacterium and so on.Fig. 1 is a kind of common air purifier, and Fig. 2 is the structure chart of common air purifier.
Referring to Fig. 1 and Fig. 2, common air purifier comprises the casing 10 that constitutes the air purifier external structure, and air drains into indoor floss hole 6 by it to contaminated air by its leaked-in air inlet port 1 (intake) with after purifying.Air inlet port 1 and air discharge ports 6 lay respectively at the place ahead and the top of casing 10.In addition, the upper center of casing 10 has an operation panel 10a.A plurality of operated keys are arranged on the operation panel 10a.Prefilter 2 also is housed, dust collecting part 3 and the air fan 5 that flows respectively in air inlet port 1.
Therefore, when passing through prefilter 2 by air inlet port 1 leaked-in air, most of impurity at first is filtered.Usually because prefilter 2 is expendable partses, in order to obtain better clean-up effect, prefilter 2 needs periodic replacement.
Flow into dust collecting part 3 by prefilter 2 filtered airs, at this, trickle impurity is collected by crown discharging (coronal discharge).Dust collecting part 3 comprises dust catch tray (not shown), and ion line (ionized line) (not shown).The dust catch tray is usually by high drive.
Next, at sterilization and deodorizing device 4 places, entered the processing of sterilization/taste removal by the air of dust collecting part 3.Sterilization and deodorizing device 4 utilize the optical catalyst filter 4a that is positioned at wherein and ultraviolet lamp 4b carries out sterilization and taste removal is handled.Room air is through being sent to the mobile fan 5 of air behind the above-mentioned device.Air discharge ports 6 is positioned on the mobile fan 5 of air.
In addition, common air purifier has the key input part 7 by user's input operation order, controller 9 and indicator 8.Controller 9 was used for according to the mobile fan 5 of operational order control air from key input part 7 inputs, the replacing time that dust collecting part 3, and the operating conditions of sterilization/deodorizing device 4, indicator 8 are used to indicate the operating conditions of said apparatus and indicate filter.
Fig. 3 is the flow chart of definite method of common air purifier filter change time, and Fig. 2 is the structure of common air purifier.Explain definite method of common air purifier filter change time below with reference to Fig. 2 and Fig. 3.
At first, the user passes through key input part 7 input operation orders, and drives air purifier with this.Then, controller 9 drives dust collecting part 3, and mobile fan 5 even loads of sterilization and deodorizing device 4 and air are to carry out air cleaning process (S11).
In more detail, when air flowed fan 5 rotations, the room air of pollution passed through prefilter 2 then by air inlet port 1.Like this, the impurity in the most of contaminated air at first is filtered.Afterwards, high pressure is added on the dust catch tray (not shown) and ionization line (not shown) of dust collecting part 3, like this, is included in the central trickle impurity of contaminated air and just collects by crown discharging.In addition, the optical catalysts filter 4a of sterilization deodorizing device 4 and ultraviolet lamp 4b carry out sterilization taste removal process, and afterwards, the air of purification drains into indoor by air discharge ports 6.
In this case, when carrying out purification run, 9 counting operation time of controller (S12), and the time of accumulated counts, and with time of counting and default reference time relatively, determine the filter replacing time (S13) with this.Like this, when controller 9 was determined to need to change filter, controller 9 was changed the time (S14) by indicator 8 indication filters.
Afterwards, controller 9 determines whether end operation (S15) by the signal from key input part 7 or the input of timer (not shown).If being defined as operation need proceed, then controller 9 continues to drive the load of air purifier, if not, determine that promptly operation should finish, then controller 9 stops the operation of dust collecting part 3, sterilization and deodorizing device 4 and mobile fan 5 even loads of air, the air cleaning operation (S16) of the air purifier that so just is through with.
Meanwhile, the open utility model No92-392 (application on June 29 nineteen ninety) of Korea S discloses a kind of " air purifier filter change time indicating circuit ".The circuit of the open utility model No90-392 of this Korea S comprises that clock signal produces part, timer section and indicator.Clock signal produces the part clocking, meanwhile, the fan motor drive part produces one and drives signal, when the clock signal when clock signal produces part and imports, the timer section time started calculates, and exports an index signal when the scheduled time arrives.When timer section had been imported an index signal, indicator indicates needed to change filter.Therefore, the circuit of the open utility model No.92-392 of Korea S calculates the driving time of air purifier, and when having arrived the scheduled time, indication cleaning or replacing filter.
In addition, Korean patent publication No94-2335 (application on March 6th, 1991) discloses a kind of " controlling the method and apparatus of air purifier pollution level automatically ".The device of this Korean patent publication No94-2335 comprises analog/digital conversion part (or A/D conversion portion, converter), pollution level test section, pollution level indicator, stream splitter, and timer.And the method comprising the steps of: in RAM the initial output voltage of storage sensor as maximum, and relatively the initial output voltage of sensor variation and when slope (inclination) mobile at utmost to drive contaminated air greater than 0 the time; By to read its output voltage rate of change be 0 value and will be worth be stored as new maximum in RAM, by the new maximum of calculating with respect to the initial output voltage of the sensor of the initial output voltage of sensor, the N step control contaminated air of dividing (divided) flows; And when the new output voltage of sensor hour by to read its output voltage rate of change be 0 value and will be worth be stored as new minimum of a value in RAM, by calculating with respect to peaked minimum of a value, it is mobile that the N of the division step is controlled contaminated air.According to the disclosed device and method of this Korean patent publication No94-2335, cleaning and the pollution level of the room air that detects according to gas sensor have preestablished a plurality of steps, and pollution level indication operation and air is mobile also controls by these a plurality of steps.
Yet, definite method according to the common air purifier filter change time, the replacing time of filter is only determined according to the scheduled time, and do not consider different pollution levels, be only to determine the filter replacing time, and not contaminated degree is below or above the influence with reference to degree according to the scheduled time.Like this, originally can use the filter of longer time unnecessarily to be changed because of air quite cleans, cause the waste of filter like this, simultaneously, the filter that should early change because air quite pollutes is still using, and has so just caused the decline of air cleaning efficient.
Meanwhile, according to the circuit of the open utility model No92-392 of this Korea S, because therefore the replacing of filter can cause the decline of filter waste and air cleaning efficient only to determine the service time of the filter of not considering air pollution degree.
In addition, the apparatus and method of Korean patent publication No94-2335 have only been indicated the purification and the pollution level of room air simply by a plurality of steps, therefore should be understood to these apparatus and method and filter and change irrelevant.
Development purpose of the present invention is to overcome above-mentioned prior art problems, and therefore, one of purpose of the present invention provides a kind of accurately according to the room air pollution degree that is detected by gas sensor, determines the air purifier filter change time method.
The definite air purifier filter change time method that realizes above-mentioned purpose comprises the steps: to detect when (1) drives air purifier air pollution degree; (2) air pollution degree that detects is predefined with reference to degree relatively with at least one, and the weighting of using correspondence; (3) determine the filter replacing time according to the weighted sum filter operation time of using.
At this, in order to have got the time that filter need be changed, step (4) comprises that also the indication filter is changed the time when filter need be replaced.
The air pollution degree of step 1 is preferably detected by gas sensor.
Step (2) comprises following substep: " cleaning ", " low " and " height " are divided and be set to air pollution degree; Be weighted to " first weighting " of corresponding air pollution degree is set, " second weighting " and " the 3rd weighting ".
The filter operation time of step (3) is the driving time by the air purifier that is installed in the timer counting in the air purifier, and at the stable back of gas sensor counting.
Step (3) comprises following substep: (ⅰ) weighting of filter operation time and application is multiplied each other, (ⅱ) will merge from the product value that step (ⅰ) obtains; And (ⅲ) determine filter during greater than predetermined value and change the time when the merging value that obtains from step (ⅱ).At this, the predetermined value of step (ⅲ) is the total filter operation time of setting when filter dispatches from the factory according to the weighting acquisition of using.
The definite air purifier filter change time method that realizes above-mentioned purpose comprises the steps: also whether (1) has started the operation of air purifier by the signal determining based on the key input part input, and by correspondingly driving the dust collecting part, sterilization and deodorizing device, and the mobile fan of air, carry out the air cleaning operation; (2) by the air pollution degree that detects by gas sensor and use corresponding weighting, and predefined relatively by the air pollution degree of the merging that will record by gas sensor with reference to degree with at least one, determine the filter replacing time; And (3) when definite filter need be changed, and filter is changed in indication, when definite air cleaning operation can finish, finishes air cleaning and operates by stopping all driving loads.
At this, step (2) comprises following substep: (A) predefined with reference to degree by the corresponding air pollution degree that relatively records by gas sensor and at least one, set corresponding weighting; (B) pass through the driving time of counting air purifier, and calculate the filter replacing time in the mode that the corresponding weighting of setting is employed and determine the filter replacing time in substep (A); And (C) use the value preset to determine that filter changes the time and indicate the replacing filter when definite filter need be changed.
According to predetermined corresponding value, the air pollution degree of substep A is divided into " height ", and " low ", " cleaning " state, and the weighting of corresponding pollution level is divided into " weighting 2 ", " weighting 1 " and " weighting 0 ".
Preferably by with the driving time of air purifier counting with multiply each other corresponding to the weighting of current air pollution degree, and merge the value that multiplies each other and get, come in substep (B), to determine that filter changes the time.
Like this, when air purifier is driven, based on the filter operation time and use corresponding weighting, can accurately determine the filter replacing time corresponding to air pollution degree.
After describing with reference to accompanying drawing, objects and advantages of the present invention will be more obvious, wherein:
Fig. 1 is the perspective appearance figure of common air purifier;
Fig. 2 is the block diagram of the air cleaning mechanism of common air purifier;
Fig. 3 is the flow chart that the filter of the common air purifier of explanation is changed time method;
Fig. 4 is the pollution level variation diagram of explanation reference time;
Fig. 5 is the flow chart according to definite air purifier filter change time method of the preferred embodiment of the present invention.
Below, definite air purifier filter change time method that present invention will be described in detail with reference to the accompanying.
Fig. 5 is the flow chart that definite filter of the explanation preferred embodiment of the present invention is changed the time method, below, describe the method in detail with reference to Fig. 2 that the air purifier structure is described.
As shown in Figure 2, reference number 1 is the air inlet port, the 2nd, and prefilter, and 3 are dust collecting parts, reference number 4 is sterilization and deodorizing device, the 5th, the air fan that flows, and 6 are air discharge ports.Reference number 7 is key input part, the 8th, and indicator, the 9th, controller, reaching 11 is gas sensors.At this, the specific characteristic that is different from common air purifier of the present invention has been to provide in addition gas sensor 11 to determine the air pollution degree of air.
Because the structure of the load of air cleaning mechanism shown in Figure 2, as air inlet port 1, prefilter 2, dust collecting part 3, sterilization and deodorizing device 4, the air fan 5 that flows, and air discharge ports 6 is identical with the structure of common air purifier, it is described in detail in this omission, determines that filter is changed time method and air pollution degree detects and focus on.
At first, the user is by key input part 7 input operation orders, and then, gas sensor 11 correspondingly detects the air pollution degree in room.At this, the resistance of gas sensor 11 changes with being adsorbed on the Particle Density that is comprised in its lip-deep air, and gas sensor 11 correspondingly detects air pollution degree.
With reference to Fig. 5, at first, when the user by key input part 7 input operation orders when driving air purifier, controller 9 drives load dust collecting parts 3, sterilization and deodorizing device 4, and the air fan 5 that flows are to carry out air cleaning operation (S21).
In more detail, when air flowed fan 5 rotations, the air process air inlet port 1 of indoor pollution was then to prefilter 2, and the impurity that major part is included in the contaminated air is filtered at this.Afterwards, high pressure is added to dust collecting part 3, and through after the crown discharging, trickle impurity is filtered in dust collecting part 3.In addition, sterilization and deodorizing device 4 use optical catalyst filter 4a and ultraviolet lamp 4b to carry out sterilization and taste removal operation, and like this, cleaned air passes is exhausted into indoor by air discharge ports 6.
Afterwards, controller 9 indication gas sensors 11 detect air pollution degree.In more detail, the resistance of gas sensor 11 changes with the density that is adsorbed on the impurity that contains in its lip-deep air, and correspondingly, the voltage of variation is added on the controller 9, so just detects the degree (S22) of pollution.
Afterwards, the pollution level that controller 9 will be recorded by gas sensor 11 and at least one compare (S23) with reference to degree, and definite filter is changed the time.
In more detail, controller 9 is carried out weightings step (S24) is set, wherein, controller 9 by the pollution level that respectively gas sensor 11 detected with at least one with reference to degree relatively, the weighting of correspondence is set.
For example, when the pollution level of correspondence is made as " height " corresponding to the corresponding reference value that presets, when " low " and " cleaning ", weighting is made as " weighting 2 ", " weighting 1 " and " weighting 0 ".Like this, as shown in Figure 4, the a-quadrant, promptly the zone of the curve of gas sensor when " cleaning " state has " weighting 0 ", and the B zone, promptly the curve of gas sensor has " weighting 2 " in the zone of " high " state.In addition, the C zone, promptly the curve of gas sensor has " weighting 1 " in the zone of " low " state.Pollution level should be divided into three grades at least, as aforesaid " height ", " low " and " cleaning ", and can get more.
Afterwards, the operation of the operating time of filter by air purifier is counted (S25), and correspondingly, determines the filter replacing time (S26-S27) by being applied in the respective weight of setting in the weighting setting step (S24).
Below filter changed step (S26-S27) be elaborated.At first, the replacing time of filter preferably multiplies each other to determine by the time value of the filter operation of operating according to air purifier and corresponding to the weighting of current pollution level.For example, according to the curve of gas sensor and the regional A of Fig. 4 thereof, B and C and corresponding weighting can obtain filter with the calculating of " (a-quadrant driving time * 0)+(B zone driving time * 2)+(C zone driving time * 1) " and change the time.Like this, can obtain accurate filter according to the environment of air purifier and change the time.In more detail, use formula ∑ (W*T), applied weighting (W) and filter operation time (T) are multiplied each other, the value that obtains by product is merged (S26), is worth greater than predetermined value up to this.When the value that merge to obtain during, just determine that it is filter and change the time (S27) greater than predetermined value.A, the actual driving time of B and C is by being installed in timer counting in the air purifier with operation count filter operation time of the air purifier after stable according to gas sensor 11.
In addition, controller 9 is changed the time (S27) by predetermined value comparison/determine filter, and indicates steps (S28) need change to indicate filter by the 8 execution filter replacing times of indicator when definite filter need be changed.
Meanwhile, predetermined value is the total filter operation time according to weighting, and it preestablishes when filter dispatches from the factory.
Afterwards, controller 9 determines whether end operation according to the signal from key input part 7 or the input of timer (not shown), and when determining can end operation the time, by stopping load dust collecting part 3, the mobile fan 5 (S30) of sterilization and deodorizing device 4 and air finishes the operation of air purifier.
As mentioned above, filter according to definite air purifier of the present invention is changed time method, because the air pollution degree in the time of can using according to air purifier is determined accurate filter and changes the time that filter is not wasted, and has prevented that contingent air purification effect from descending.
More than the present invention has been carried out the description of preferred embodiment with reference to accompanying drawing, yet, it will be understood by those skilled in the art that in not breaking away from the described the spirit and scope of the invention of claims of the present invention, can do various variations to form of the present invention and details.
Claims (11)
1. the filter of a definite air purifier is changed time method, comprises step:
(1) when air purifier drives, detects air pollution degree;
(2) detected described air pollution degree and at least one is default reference degree compares, and uses corresponding weighting; And
(3) determine the filter replacing time according to the weighted sum filter operation time of this application.
2. the method for claim 1 further comprises when filter need be changed and indicates filter to change the step (4) of time to the user.
3. the method for claim 1, wherein the air pollution degree of step (1) is detected by gas sensor.
4. the method for claim 1, wherein step (2) comprises following substep:
" cleaning ", " low " and " height " are divided and be set to air pollution degree; And
The weighting of corresponding air-polluting degree is arranged to " first weighting " " second weighting " and " the 3rd weighting ".
5. method as claimed in claim 3, wherein the filter operation time of step (3) is mounted in the air purifier driving time of the timer counting in the air purifier, and at the stable back of gas sensor counting.
6. the method for claim 1, wherein step (3) comprises substep:
(ⅰ) weighting of filter operation time and application is multiplied each other;
(ⅱ) merge the product value of obtaining from step (ⅰ); And
(ⅲ) when the value of the merging that obtains from step (ⅱ) during, determine that filter changes the time greater than predetermined value.
7. method as claimed in claim 6, wherein the predetermined value of step (ⅲ) is the total filter operation time that obtains according to the weighting of using, and preestablishes when filter dispatches from the factory.
8. definite method of an air purifier filter change time comprises:
(1) operate according to determining from the input signal of key input part whether air purifier starts to carry out air cleaning, and respective drive load dust collecting part, sterilization and deodorizing device and air flow and fan;
(2) detect air pollution degree and use corresponding weighting by gas sensor, and by relatively determining the filter replacing time with the air pollution degree merging of gas sensor detection with at least one reference degree that presets; And
(3) filter is changed in indication when definite filter need be changed, and simultaneously, stops all loads and drive to finish the air cleaning operation when determining to finish the air cleaning operation.
9. method as claimed in claim 8, wherein step (2) comprises substep:
(A) relatively set corresponding weighting by corresponding air pollution degree that gas sensor is detected and the reference degree that at least one presets;
(B) driving time of counting air purifier, and calculate the filter replacing time in the mode of using the respective weight of setting in the described substep (A) and change the time to determine filter; And
(C), when judging that filter need be changed, filter is changed in indication, uses the predetermined value that presets to determine the filter replacing time simultaneously.
10. method as claimed in claim 9 wherein is divided into " height ", " low " according to the corresponding value that presets with the air pollution degree of substep (A), " cleaning " state, and the weighting of corresponding pollution level is divided into " weighting 2 ", " weighting 1 " and " weighting 0 ".
11. method as claimed in claim 9, wherein in substep (B) driving time of the air purifier by will counting with multiply each other corresponding to the weighting of current air pollution degree, and determine the filter replacing time by the merging value that obtains that multiplies each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980016272A KR19990084486A (en) | 1998-05-07 | 1998-05-07 | How to determine when to replace the filter of the air purifier |
| KR16272/98 | 1998-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1235060A true CN1235060A (en) | 1999-11-17 |
Family
ID=19537094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99104608A Pending CN1235060A (en) | 1998-05-07 | 1999-03-30 | Method for determining filter replacement time of air |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH11319452A (en) |
| KR (1) | KR19990084486A (en) |
| CN (1) | CN1235060A (en) |
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| CN1306984C (en) * | 2001-10-05 | 2007-03-28 | 荷兰联合利华有限公司 | Filter condition indicator |
| CN100372589C (en) * | 2004-06-22 | 2008-03-05 | 三星电子株式会社 | Air purifier and control method thereof |
| CN100376846C (en) * | 2004-08-16 | 2008-03-26 | Lg电子株式会社 | Filter unit of air conditioner |
| CN100455925C (en) * | 2004-11-30 | 2009-01-28 | 乐金电子(天津)电器有限公司 | Air purifier with gas sensor and method for detecting pollution degree |
| US7670414B2 (en) | 2004-08-16 | 2010-03-02 | Lg Electronics Inc. | Filter unit of air conditioner |
| CN102218245A (en) * | 2010-04-14 | 2011-10-19 | 泰怡凯电器(苏州)有限公司 | Air purifier and filter detection method thereof |
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-
1998
- 1998-05-07 KR KR1019980016272A patent/KR19990084486A/en active IP Right Grant
-
1999
- 1999-02-26 JP JP11051162A patent/JPH11319452A/en active Pending
- 1999-03-30 CN CN99104608A patent/CN1235060A/en active Pending
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| CN100372589C (en) * | 2004-06-22 | 2008-03-05 | 三星电子株式会社 | Air purifier and control method thereof |
| CN100376846C (en) * | 2004-08-16 | 2008-03-26 | Lg电子株式会社 | Filter unit of air conditioner |
| US7670414B2 (en) | 2004-08-16 | 2010-03-02 | Lg Electronics Inc. | Filter unit of air conditioner |
| CN100455925C (en) * | 2004-11-30 | 2009-01-28 | 乐金电子(天津)电器有限公司 | Air purifier with gas sensor and method for detecting pollution degree |
| CN102764549B (en) * | 2005-07-14 | 2014-08-27 | 捷通国际有限公司 | Control methods for tracking filter life in an air treatment system |
| CN102764549A (en) * | 2005-07-14 | 2012-11-07 | 捷通国际有限公司 | Control methods for tracking filter life in an air treatment system |
| CN101653673B (en) * | 2006-04-12 | 2012-09-26 | Emd密理博公司 | Filter with memory, communication and pressure sensor |
| CN102218245A (en) * | 2010-04-14 | 2011-10-19 | 泰怡凯电器(苏州)有限公司 | Air purifier and filter detection method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPH11319452A (en) | 1999-11-24 |
| KR19990084486A (en) | 1999-12-06 |
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