CN101995055A - Air conditioner capable of automatically removing dust - Google Patents
Air conditioner capable of automatically removing dust Download PDFInfo
- Publication number
- CN101995055A CN101995055A CN2009101659227A CN200910165922A CN101995055A CN 101995055 A CN101995055 A CN 101995055A CN 2009101659227 A CN2009101659227 A CN 2009101659227A CN 200910165922 A CN200910165922 A CN 200910165922A CN 101995055 A CN101995055 A CN 101995055A
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- air
- screen pack
- cross flow
- flow fan
- control system
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Abstract
The invention provides an air conditioner capable of automatically removing dust. The air conditioner is characterized by comprising a cross flow fan capable of positively rotating to perform normal air supply of the air conditioner or reversely rotating to automatically remove dust, a filter screen for filtering the air sucked by the air conditioner and a control system, wherein when automatic dust removal is needed, the control system controls the set time of the reverse rotation of the cross flow fan so as to remove the dust from the filter screen. According to the air conditioner capable of automatically removing the dust, resistance to an air path due to the dust accumulated on the filter screen can be prevented so as to improve the air supply efficiency. Because the dust on the filter screen is automatically removed, the time for manual removal is saved, the removing efficiency is improved and the maintenance cost is reduced.
Description
Technical field
The present invention relates to the air-conditioner of dedusting automatically.
Background technology
Existing air-conditioner is equipped with screen pack usually, so that the air-conditioner inhaled air is filtered.But through after the running of air-conditioner a period of time, will dust stratification on the screen pack, if can not get cleaning, will increase the resistance of wind path, reduced air-supply efficient.
But existing cleaning for screen pack cleans after normally utilizing and manually this screen pack being disassembled again, not only wastes time and energy, and has increased maintenance cost.
Summary of the invention
In order to overcome the defective of above-mentioned prior art, the invention provides a kind of air-conditioner of dedusting automatically, comprise and to carry out screen pack and the control system that forward rotation is filtered with the cross flow fan that carries out automatic dedusting, for the air-conditioner inhaled air with the normal air-supply of carrying out air-conditioner or backward rotation, when needs carry out automatic dedusting, control system is controlled the cross flow fan backward rotation stipulated time (T), thereby removes the dust on the screen pack.
According to air-conditioner of the present invention, when cross flow fan normally blow the running cumulative time reach the first stipulated time (T
1) time, control system is controlled the cross flow fan backward rotation stipulated time (T), thereby removes the dust on the screen pack.
According to air-conditioner of the present invention, when cross flow fan normally blow the running the single continuous operation time reach the second stipulated time (T
2) time, control system is controlled the cross flow fan backward rotation stipulated time (T), thereby removes the dust on the screen pack.
According to air-conditioner of the present invention, when cross flow fan is normally blown the accumulative total number of starts of running when reaching stipulated number (A), the control system control cross flow fan backward rotation stipulated time (T), thus remove dust on the screen pack.
Air-conditioner of the present invention can further be equipped with the measuring wind speed sensor before and after screen pack.
According to air-conditioner of the present invention, the difference of the numerical value that the measuring wind speed sensor before and after screen pack is measured is greater than the poor (V of the first regulation wind speed
1) and continue the 3rd stipulated time (T
3) time, control system control cross flow fan backward rotation, the difference of the numerical value that the measuring wind speed sensor before and after screen pack is measured is less than the poor (V of the second regulation wind speed
2) and continue the 4th stipulated time (T
4) time, control system control cross flow fan stops backward rotation.
Air-conditioner of the present invention can further be equipped with pressure sensor before and after screen pack.
According to air-conditioner of the present invention, the difference of the numerical value that the pressure measxurement sensor before and after screen pack is measured is greater than the poor (P of first authorized pressure
1) and continue the 5th stipulated time (T
5) time, control system control cross flow fan backward rotation, the difference of the numerical value that the measuring wind speed sensor before and after screen pack is measured is less than the poor (P of second authorized pressure
2) and continue the 6th stipulated time (T
6) time, control system control cross flow fan stops backward rotation.
Air-conditioning of the present invention can further be equipped with current transformer by device.
According to air-conditioner of the present invention, when the current value of The whole control current in loop transformer greater than the first rated current value (I
1) and continue the 7th stipulated time (T
7) time, control system control cross flow fan backward rotation, the current value of the current transformer of the motor in the The whole control loop is less than the second rated current value (I
2) and continue the 8th stipulated time (T
8) time, control system control cross flow fan stops backward rotation.
According to the air-conditioner of dedusting automatically of the present invention, remove dust on the screen pack by the backward rotation of control cross flow fan, thereby prevent the resistance that causes owing to the screen pack dust stratification for wind path, improved air-supply efficient.And, owing to removed the dust on the screen pack automatically, saved the time of removing required cost by artificial, improved efficient, reduced maintenance cost.
Description of drawings
Fig. 1 is the schematic diagram of the air-conditioner of dedusting automatically of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing to being elaborated.
As shown in Figure 1, the air-conditioner 10 of dedusting automatically of the present invention comprises cross flow fan 1, screen pack 2, control system 4, air inlet 5, air outlet 6 and exhaust outlet 8, in addition, can also be as required and in the front and back of screen pack (before screen pack 2 is, be the back near a side of air inlets 5) installation measuring wind speed sensor 3,3 ' or pressure measxurement sensor 7,7 ' near a side of cross flow fan 1.Wherein, screen pack 2 is used for air-conditioner is filtered from air inlet 5 inhaled airs, cross flow fan 1 both can forward rotation also can backward rotation, when cross flow fan 1 carried out forward rotation, air-conditioner was normally blown.Promptly, under the forward rotation of cross flow fan 1, wind path is that the air inlet 5 from air-conditioner enters air-conditioner, through the filtration of screen pack 2, through sequence of operations subsequently, send (the formed wind path of cross flow fan forward rotation is shown in solid arrow the figure) from air outlet 6 at last then.And when cross flow fan 1 backward rotation, then facing to screen pack 2 blowings, formed wind path is opposite with the direction of normal air-supply, thereby the dust that will amass on screen pack 2 blows away, and makes these dusts discharge (the formed wind path of cross flow fan backward rotation is shown in dotted arrow the figure) along with the formed wind path of cross flow fan 1 backward rotation from exhaust outlet 8.Below preferred embodiment be elaborated by each respectively.
First embodiment
When the air-conditioner of dedusting automatically of the present invention need carry out automatic dedusting, the 4 control 1 backward rotation T times of cross flow fan of control system, make cross flow fan 1 facing to screen pack 2 blowings, thereby remove the dust that amasss on screen pack 2.
When needing dedusting, can adopt following three kinds of patterns for the air-conditioner of judging dedusting automatically of the present invention.
1. judge normally blow cumulative time of running of cross flow fans 1 when control system 4 and reach T
1During the time, then control the 1 backward rotation T time of cross flow fan, thereby remove the dust on the screen pack 2.
2. judge normally the blow single continuous operation time of running of cross flow fans 1 when control system 4 and reach T
2During the time, control the 1 backward rotation T time of cross flow fan, thereby remove the dust on the screen pack 2.
3. judge cross flow fans 1 when control system 4 and normally blow the accumulative total number of starts of running when reaching A time, control the 1 backward rotation T time of cross flow fan, thereby remove the dust on the screen pack 2.
Second embodiment
In order further to detect the order of severity of dust on the screen pack 2, air-conditioner of the present invention can further be equipped with measuring wind speed sensor 3,3 ' in screen pack 2 front and back.When not having dust stratification on the screen pack 2, screen pack 2 near the wind speed of air inlet 5 one sides should with screen pack 2 near the wind speed of cross flow fan 1 one sides about equally, can guarantee the proper flow of wind path like this, but, when on the screen pack 2 during a large amount of dust stratification, then screen pack 2 can surpass the wind speed of screen pack 2 near cross flow fan 1 one sides near the wind speed of air inlet 5 one sides, in other words, dust on the screen pack 2 has stopped flowing of wind path, cause wind path significantly to descend through screen pack 2 back wind speed, when dust stratification was serious more, this obstruction was also just serious more, caused screen pack 2 just slow more near the wind speed of cross flow fan 1 one sides.
When in the front and back of screen pack 2 (before screen pack 2 near a side of air inlets 5 is, be the back near a side of cross flow fan 1) measuring wind speed sensor 3 is installed, 3 ' time, when cross flow fan 1 forward rotation was normally blown running, control system 4 constantly detected the value of the measured wind speed of air velocity transducer 3,3 ' before and after the screen pack.
When the difference of the value of the wind speed of screen pack 2 front and back greater than V
1And lasting T
3During the time, control system 4 judges that dust stratification is serious on this screen pack 2, has caused bigger obstruction for wind path, need clean, then control system 4 is sent control signal, makes cross flow fan 1 carry out backward rotation, to screen pack 2 blowings, so that the dust on the screen pack 2 is disposed.
Carry out backward rotation when removing the dust on the screen pack 2 at cross flow fan 1, the air velocity transducer 3,3 ' that is arranged on screen pack 2 front and back is still in the value of constantly measuring the wind speed of screen pack 2 front and back, when the difference of the value of the wind speed of screen pack 2 front and back less than V
2And lasting T
4During the time, control system 4 judges that then control system 4 was sent control signal, makes cross flow fan 1 stop antiport when the dust stratification of this screen pack 2 can not influence the air-supply loop, and at this moment, the cleaning of screen pack 2 finishes.
The 3rd embodiment
In order further to detect the order of severity of dust on the screen pack, air-conditioner of the present invention can be further (before screen pack 2 near a side of air inlets 5 is, be the back near a side of cross flow fan 1) in screen pack 2 front and back pressure measxurement sensor 7,7 ' is installed.When not having dust stratification on the screen pack 2, screen pack 2 near the pressure of air inlet 5 one sides should with screen pack 2 near the pressure of cross flow fan 1 one sides about equally, can guarantee the proper flow of wind path like this, but, when on the screen pack 2 during a large amount of dust stratification, then screen pack 2 can surpass the pressure of screen pack 2 near cross flow fan 1 one sides near the pressure of air inlet 5 one sides, in other words, dust on the screen pack 2 has stopped flowing of wind path, cause the wind path that flows into from air inlet 5 to be difficult to make pressure increase by screen pack 2, dust stratification is serious more, and this obstruction is also just serious more, and screen pack 2 is also just big more near the pressure of air inlet 5 one sides.
When in the front and back of screen pack 2 (before with screen pack being near a side of air inlet, be the back near a side of cross flow fan) pressure measxurement sensor 7 is installed, 7 ' time, when cross flow fan 1 forward rotation was with the running of normally blowing, the pressure sensor 7,7 ' that is arranged on screen pack 2 front and back was constantly measured the value of the pressure of screen pack front and back.
When the difference of the value of the pressure of screen pack 2 front and back greater than P
1And lasting T
5During the time, control system 4 judges that dust stratification is serious on this screen pack 2, causes wind path to be difficult to by screen pack 2, need clean, then control system 4 is sent control signal, makes cross flow fan 1 carry out backward rotation, to screen pack 2 blowings, so that the dust on the screen pack 2 is disposed.
Carry out backward rotation when removing the dust on the screen pack 2 at cross flow fan 1, the pressure sensor 7,7 ' that is arranged on screen pack 2 front and back is still in the value of constantly measuring the pressure of screen pack 2 front and back, when the difference of the value of the pressure of gained screen pack 2 front and back less than P
2And lasting T
6During the time, control system 4 judges that wind path can waltz through screen pack when the dust stratification of this screen pack 2 can not influence the air-supply loop, and then control system 4 is sent control signal, makes cross flow fan 1 stop antiport, and at this moment, the cleaning of screen pack 2 finishes.
The 4th embodiment
Air-conditioner of the present invention can further be equipped with the current transformer (not shown), so that measure the electric current of the motor of cross flow fan.Be appreciated that when dust stratification is serious on the screen pack 2 motor of cross flow fan 1 certainly will need to increase power blows, like this, its current potential must increase
When the current value of The whole control current in loop transformer greater than I
1And lasting T
7During the time, control system 4 judges that dust stratification is serious on the screen pack 2, therefore sends control signal, and control cross flow fan 1 backward rotation is so that the dust stratification on the removing screen pack.
The current value of the current transformer of the motor in the The whole control loop is less than I
2And lasting T
8During the time, the dust on the control system 4 judgement screen packs 2 has been removed totally, does not influence operate as normal, and therefore controlling cross flow fan 1 stops backward rotation, and the beginning forward rotation is blown normally.
Though below in conjunction with the accompanying drawings the present invention is specified, is appreciated that above-mentioned explanation does not limit the present invention in any form.Those skilled in the art can be out of shape and change the present invention as required under the situation that does not depart from connotation of the present invention and scope, and these distortion and variation all fall within the scope of the present invention.
Claims (10)
1. the air-conditioner of dedusting automatically is characterized in that, comprise carrying out screen pack and the control system that forward rotation is filtered with the cross flow fan that carries out automatic dedusting, for the air-conditioner inhaled air with the normal air-supply of carrying out air-conditioner or backward rotation,
When needs carried out automatic dedusting, control system was controlled the cross flow fan backward rotation stipulated time, thereby removed the dust on the screen pack.
2. air-conditioner according to claim 1 is characterized in that, when cross flow fan is normally blown cumulative time of running when reaching for first stipulated time, and the control system control cross flow fan backward rotation stipulated time, thus remove dust on the screen pack.
3. air-conditioner according to claim 1, it is characterized in that, when cross flow fan is normally blown the single continuous operation time of running when reaching for second stipulated time, the control system control cross flow fan backward rotation stipulated time, thus remove dust on the screen pack.
4. air-conditioner according to claim 1 is characterized in that, when cross flow fan is normally blown the accumulative total number of starts of running when reaching stipulated number, and the control system control cross flow fan backward rotation stipulated time, thus remove dust on the screen pack.
5. air-conditioner according to claim 1 is characterized in that, described air-conditioner further is equipped with the measuring wind speed sensor before and after screen pack.
6. air-conditioner according to claim 5, it is characterized in that, when the difference of the numerical value that the measuring wind speed sensor before and after screen pack is measured is stipulated the wind speed difference and was continued for the 3rd stipulated time greater than first, control system control cross flow fan backward rotation, when the difference of the numerical value that the measuring wind speed sensor before and after screen pack is measured was stipulated the wind speed difference and continued for the 4th stipulated time less than second, control system control cross flow fan stopped backward rotation.
7. air-conditioner according to claim 1 is characterized in that, described air-conditioner further is equipped with pressure sensor before and after screen pack.
8. air-conditioner according to claim 7, it is characterized in that, the difference of the numerical value that the pressure measxurement sensor before and after the screen pack is measured is greater than the first authorized pressure difference and when continuing for the 5th stipulated time, control system control cross flow fan backward rotation, the difference of the numerical value that the measuring wind speed sensor before and after the screen pack is measured is less than the second authorized pressure difference and when continuing for the 6th stipulated time, and control system control cross flow fan stops backward rotation.
9. air-conditioner according to claim 1 is characterized in that described air-conditioner further is equipped with current transformer.
10. air-conditioner according to claim 9, it is characterized in that, when the current value of The whole control current in loop transformer greater than the first rated current value and when continuing for the 7th stipulated time, control system control cross flow fan backward rotation, when the current value of the current transformer of the motor in the The whole control loop less than the first rated current value and when continuing for the 8th stipulated time, control system control cross flow fan stops backward rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101659227A CN101995055A (en) | 2009-08-18 | 2009-08-18 | Air conditioner capable of automatically removing dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101659227A CN101995055A (en) | 2009-08-18 | 2009-08-18 | Air conditioner capable of automatically removing dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101995055A true CN101995055A (en) | 2011-03-30 |
Family
ID=43785552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101659227A Pending CN101995055A (en) | 2009-08-18 | 2009-08-18 | Air conditioner capable of automatically removing dust |
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|---|---|
| CN (1) | CN101995055A (en) |
Cited By (27)
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|---|---|---|---|---|
| CN102278803A (en) * | 2011-08-31 | 2011-12-14 | 广东美的电器股份有限公司 | Method for controlling dust removal device of heat exchanger of outdoor machine of air conditioner |
| CN102494397A (en) * | 2011-11-16 | 2012-06-13 | 奇瑞汽车股份有限公司 | Automobile air conditioner inlet air filter capable of automatically detecting filtering effect and detection method thereof |
| CN103062860A (en) * | 2011-10-18 | 2013-04-24 | 松下电器产业株式会社 | Air-conditioner |
| CN104568698A (en) * | 2014-12-26 | 2015-04-29 | 广东美的制冷设备有限公司 | Device and method for detecting state of filter screen in air conditioner |
| CN104729016A (en) * | 2015-03-13 | 2015-06-24 | 广东美的暖通设备有限公司 | Dust removal method and device applied to air conditioner outdoor heat exchanger |
| CN105299850A (en) * | 2014-06-24 | 2016-02-03 | 浙江盾安人工环境股份有限公司 | Air conditioning unit and control device used for cleaning air conditioning unit |
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| CN102278803B (en) * | 2011-08-31 | 2013-08-14 | 广东美的电器股份有限公司 | Method for controlling dust removal device of heat exchanger of outdoor machine of air conditioner |
| CN102278803A (en) * | 2011-08-31 | 2011-12-14 | 广东美的电器股份有限公司 | Method for controlling dust removal device of heat exchanger of outdoor machine of air conditioner |
| CN103062860A (en) * | 2011-10-18 | 2013-04-24 | 松下电器产业株式会社 | Air-conditioner |
| CN103062860B (en) * | 2011-10-18 | 2017-09-22 | 松下电器产业株式会社 | Air conditioner |
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| CN110645668A (en) * | 2018-06-26 | 2020-01-03 | 青岛海尔空调器有限总公司 | Self-cleaning method for indoor unit filter screen |
| CN109724210A (en) * | 2018-12-27 | 2019-05-07 | 青岛海尔空调器有限总公司 | Air-conditioner control method |
| CN109855228A (en) * | 2019-02-28 | 2019-06-07 | 珠海格力电器股份有限公司 | Air-conditioning self cleaning method, device, system, computer equipment and storage medium |
| CN112128928A (en) * | 2019-06-25 | 2020-12-25 | 青岛海尔空调器有限总公司 | Air conditioner and cleaning and sterilizing method thereof |
| CN111947253A (en) * | 2020-09-11 | 2020-11-17 | 珠海格力电器股份有限公司 | Automatic cleaning and filtering device, control method and air conditioner comprising filtering device |
| CN112747234A (en) * | 2021-01-15 | 2021-05-04 | 吴燕萍 | Camera for intelligent building security protection |
| 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 |
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Application publication date: 20110330 |