CN1811624A - Dust cleaning device and method for filter of image display device - Google Patents
Dust cleaning device and method for filter of image display device Download PDFInfo
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- CN1811624A CN1811624A CN 200510045746 CN200510045746A CN1811624A CN 1811624 A CN1811624 A CN 1811624A CN 200510045746 CN200510045746 CN 200510045746 CN 200510045746 A CN200510045746 A CN 200510045746A CN 1811624 A CN1811624 A CN 1811624A
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- filtrator
- cooling fan
- foreign matter
- image display
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Abstract
The present invention relates to a filter dust removing device for image display device and its method. Said filter dust removing device is composed of power supply portion, cooling fan and filter, the periphery of the cooling fan is equipped with an air pressure sensor, its detection signal line is connected to input end of miniature computer, and the output end of said miniature computer is connected with power supply portion. Besides, said invention also provides the concrete steps for removing filter dust.
Description
Technical field
The present invention relates to a kind of filtrator ash dust remover and method, especially a kind of filtrator ash dust remover and method of image display.
Background technology
The past people use CRT (cathode-ray tube (CRT)) image display as rating equipment usually, and at present, the image display of reflective projection form gains great popularity, and is good in order to guarantee the internal optics system radiating, must use cooling fan to cool off.
As shown in Figure 1, be the cooling device structural representation of traditional image display, by power supply unit 10, by power supply unit 10 provide power operation cooling fan 20, be arranged on above-mentioned cooling fan 20 the place aheads and filter the filtrator 30 that flows into foreign matter in the air and form.For preventing that foreign matters such as dust from flowing into the filtrator 30 that internal system is provided with, can reduce air flow amount because of the long-pending full dust that works long hours, cooling device with traditional image display of above-mentioned formation can't be discerned the size of its air mass flow, and, except by the startup of power supply unit 10 control cooling fans 20/stopping, the method that does not have other control cooling fan 20 start and stop, will inevitably reduce the reliability of cooled body performance, and shorten its serviceable life, even can cause serious plant failure.
Summary of the invention
The object of the present invention is to provide a kind of filtrator ash dust remover and method of image display, this device and method does not need user's specific identification can consciously detect cooling performance by blast by device yet, and carry out foreign bodies removal work, perhaps point out the user to change filtrator.
For achieving the above object, the technical solution used in the present invention is:
The present invention by power supply unit, by power supply unit provide power operation cooling fan, be arranged on above-mentioned cooling fan the place ahead and filter the filtrator that flows into foreign matter in the air and form, one wind pressure sensor that detects through the extraneous air blast of filter inflow is set around cooling fan, the signal lines of this wind pressure sensor is connected to the input end of the microcomputer that can compare, judge this detection signal and setting value, and the output terminal of this microcomputer links to each other with power supply unit.
The filtrator dust removing method of image display comprised with the next stage:
A) filter by filtrator because foreign matter in the extraneous air that the driving of cooling fan flows into;
B) by being arranged on cooling fan wind pressure sensor on every side, every interval certain hour detects and flows into blast, and compares with setting value;
C) Bi Jiao result if acoustic wind forces down when setting value, calculates the checkout time corresponding to leeway;
D) in calculating checkout time, remove the foreign matter that is clipped in filtrator, carry out foreign bodies removal work;
E), confirm whether the foreign matter that is clipped in filtrator is eliminated through checkout time;
F) result of Que Rening, if dust is eliminated, normal operation cooling fan, actuating unit cooling work.
Described stage d) oppositely starts cooling fan continuously in checkout time, remove the foreign matter that is clipped in the filtrator; Perhaps intermittent reverse startup cooling fan in checkout time is removed the foreign matter that is clipped in filtrator; Measure blast when described stage e), forward start cooling fan, blast is higher than setting value or when identical, the identification foreign matter is eliminated when measuring, and acoustic wind forces down when setting value, and the identification foreign matter is not eliminated;
The filtrator dust removing method of image display also comprised with the next stage:
A1) device energising;
When b1) switching on, cooling fan is carried out foreign bodies removal work in setting-up time;
C1) behind the foreign bodies removal end-of-job, normal operation cooling fan, the cooling work of actuating unit.
Described stage b 1) removes the foreign matter that is clipped in the filtrator in setting-up time, oppositely starting cooling fan continuously; Perhaps remove the foreign matter that is clipped in the filtrator for intermittent reverse startup cooling fan in setting-up time.
The present invention has the following advantages:
1. good cooling results.The present invention uses wind pressure sensor to discern the foreign matter that is clipped in the filtrator, when the cooling air amount of flow is lower than set value, oppositely starts the cooling fan dust out, keeps certain cooling performance.
2. help to improve the reliability of cooled body.The present invention improves the stable performance degree of device integral body and the serviceable life of product, reduces the unnecessary cost of repairs.
Description of drawings
Fig. 1 is the cooling device structural representation of traditional image display;
Fig. 2 is the filtrator ash dust remover structural representation of image display of the present invention;
Fig. 3 is the filtrator dust removing method process flow diagram of image display of the present invention.
Embodiment
As shown in Figure 2, the present invention has following structure: by power supply unit 10, by power supply unit 10 provide power operation cooling fan 20, be arranged on above-mentioned cooling fan 20 the place aheads and filter the filtrator 30 that flows into foreign matter in the air and form, one wind pressure sensor 40 that detects through the extraneous air blast of filter 30 inflows is set around cooling fan 20, the signal lines of this wind pressure sensor 40 is connected to the input end of the microcomputer 50 that can compare, judge this detection signal and setting value, and the output terminal of this microcomputer 50 links to each other with power supply unit 10.
The filtrator dust removing method of the image display among the present invention comprised with the next stage: a) filter by filtrator 30 because foreign matter in the extraneous air that the driving of cooling fan 20 flows into; B) by being arranged on cooling fan 20 wind pressure sensor 40 on every side, every interval certain hour detects and flows into blast, and compares with setting value; C) Bi Jiao result if acoustic wind forces down when setting value, calculates the checkout time corresponding to leeway; D) in calculating checkout time, remove the foreign matter that is clipped in filtrator, carry out foreign bodies removal work; E), confirm whether the foreign matter that is clipped in filtrator is eliminated through checkout time; F) result of Que Rening, if dust is eliminated, normal operation cooling fan 20, actuating unit cooling work; Described stage d) can oppositely start cooling fan 20 continuously in checkout time, remove the foreign matter that is clipped in the filtrator 30; Described stage d) also can be in checkout time intermittent reverse startup cooling fan 20, remove the foreign matter that is clipped in filtrator 30; Described stage e) is that forward is measured blast when starting cooling fan, and blast is higher than setting value or when identical, the identification foreign matter is eliminated when measuring, and acoustic wind forces down when setting value, and the identification foreign matter is not eliminated.
In order to realize above-mentioned several stages, the present invention also comprised as the next stage: a1) device energising; When b1) switching on, cooling fan 20 is carried out foreign bodies removal work in setting-up time; C1) behind the foreign bodies removal end-of-job, normal operation cooling fan 20, the cooling work of actuating unit; Described stage b 1) can be the reverse continuously cooling fan 20 that starts in setting-up time, remove the foreign matter that is clipped in the filtrator 30; Described stage b 1) is intermittent reverse startup cooling fan 20 in setting-up time, removes the foreign matter that is clipped in the filtrator 30.
The present invention judges the cooling performance of cooling fans 20 by wind pressure sensor 40, reduces to when performance and sets blast when following, and it is undesired to be judged as, and removes the dust in the filtrator 30 voluntarily.
As Fig. 3 institute, be the filtrator dust removing method process flow diagram of image display of the present invention, it comprises the steps:
S10: judge whether the input of power-off signal, if any, then finish;
S20: if there is not the input of power-off (power off) signal, when cooling fan 20 continued to carry out the cooling work of instrument internal, every interval certain hour was measured the inflow blast by being arranged on cooling fan 20 wind pressure sensor 40 on every side;
S30: compare with setting value, blast is higher than setting value
S130: comparative result when measuring that blast is higher than setting value or when identical, continues to carry out cooling work in during carry out that blast next time measures;
S40: otherwise, when blast during, calculate the checkout time (T) that is suitable for leeway less than setting value;
S50: stop cooling fan 20 simultaneously, open the dust collect plant (not shown, as also can not to be provided with as required) that is arranged on assigned address;
S60: at aforementioned calculation checkout time T, oppositely start cooling fan 20, remove the foreign matter that is clipped in filtrator;
S70: the actual antiport time t of above-mentioned cooling fan 20 should be more than or equal to by measuring the checkout time T that blast calculated;
S80: otherwise cooling fan 20 continues antiport;
S90: after carrying out the foreign bodies removal work of above-mentioned checkout time T, need to confirm whether the foreign matter that is clipped on the filtrator 30 is eliminated totally;
S100: normally rotate cooling fan 20 and measure blast, its method is to measure blast to be higher than setting value or when identical, be identified as foreign matter and be eliminated totally, and acoustic wind force down when setting value, is identified as foreign matter not to be eliminated totally;
S110: the result of above-mentioned affirmation, if foreign matter is eliminated totally, then close dust collect plant, cooling fan 20 stops;
S120: normally rotate cooling fan 20;
S130: till blast is measured next time until delaying time, continue to carry out cooling work;
S140: if foreign matter is not eliminated totally, oppositely start cooling fan 20 again, carry out foreign bodies removal work; Judgement also can't dust out behind certain hour:
S150: be, then point out the user to change filtrator 30, finish;
Otherwise, go to step S40.
As another embodiment of the present invention, for foreign bodies removal work, except oppositely starting cooling fan 20 continuously, also can intermittent reverse startup cooling fan 20, repeatedly just perhaps continue/counter-rotating cooling fan 20, this method has the effect of shaking off to be clipped in the foreign matter on the filtrator 30, can make foreign bodies removal more thorough; Cooling fan 20 just/counter-rotating works repeatedly, should shorten just changeing the time in, prolong reversing time, make it longer than just changeing the time.
Other embodiment of the present invention, also can be in the device energising, make cooling fan 20 carry out the foreign bodies removal work of given time, prevent that from root foreign matter is clipped on the filtrator, this moment as previously mentioned, the cooling fan 20 that not only can reverse also can just use/reverse together, more effectively removes foreign matter.
Claims (8)
1. the filtrator of image display ash dust remover, by power supply unit, the cooling fan of power operation is provided by power supply unit, be arranged on above-mentioned cooling fan the place ahead and filter the filtrator composition that flows into foreign matter in the air, it is characterized in that: a wind pressure sensor (40) that detects through the extraneous air blast of filter (30) inflow is set on every side at cooling fan (20), the signal lines of this wind pressure sensor (40) is connected to and can compares this detection signal and setting value, the input end of the microcomputer of judging (50), the output terminal of this microcomputer (50) links to each other with power supply unit (10).
2. the filtrator dust removing method of an image display, it is characterized in that: this method comprised with the next stage:
A) filter by filtrator (30) because foreign matter in the extraneous air that the driving of cooling fan (20) flows into;
B) by being arranged on cooling fan (20) wind pressure sensor (40) on every side, every interval certain hour detects and flows into blast, and compares with setting value;
C) Bi Jiao result if acoustic wind forces down when setting value, calculates the checkout time corresponding to leeway;
D) in calculating checkout time, remove the foreign matter that is clipped in filtrator, carry out foreign bodies removal work;
E), confirm whether the foreign matter that is clipped in filtrator is eliminated through checkout time;
F) result of Que Rening, if dust is eliminated, normal operation cooling fan (20), actuating unit cooling work.
3. by the filtrator dust removing method of the described image display of claim 2, it is characterized in that: described stage d), in checkout time, oppositely start cooling fan (20) continuously, remove the foreign matter that is clipped in the filtrator (30).
4. by the filtrator dust removing method of the described image display of claim 2, it is characterized in that: described stage d), intermittent reverse startup cooling fan (20) in checkout time is removed the foreign matter that is clipped in filtrator (30).
5. press the filtrator dust removing method of the described image display of claim 2, it is characterized in that: described stage e), when starting cooling fan, forward measures blast, when measuring that blast is higher than setting value or when identical, the identification foreign matter is eliminated, and acoustic wind forces down when setting value, and the identification foreign matter is not eliminated.
6. the filtrator dust removing method of an image display, it is characterized in that: this method comprised with the next stage:
A1) device energising;
When b1) switching on, cooling fan (20) is carried out foreign bodies removal work in setting-up time;
C1) behind the foreign bodies removal end-of-job, normal operation cooling fan (20), the cooling work of actuating unit.
7. by the filtrator dust removing method of the described image display of claim 6, it is characterized in that: described stage b 1), in setting-up time, oppositely start cooling fan (20) continuously and remove the foreign matter that is clipped in the filtrator (30).
8. by the filtrator dust removing method of the described image display of claim 6, it is characterized in that: described stage b 1) be intermittent reverse startup cooling fan (20) in setting-up time, remove the foreign matter that is clipped in the filtrator (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510045746 CN1811624A (en) | 2005-01-24 | 2005-01-24 | Dust cleaning device and method for filter of image display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510045746 CN1811624A (en) | 2005-01-24 | 2005-01-24 | Dust cleaning device and method for filter of image display device |
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| CN1811624A true CN1811624A (en) | 2006-08-02 |
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| CN 200510045746 Pending CN1811624A (en) | 2005-01-24 | 2005-01-24 | Dust cleaning device and method for filter of image display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371961B (en) * | 2007-08-23 | 2011-11-16 | 三洋电机株式会社 | Mechanism for detecting filter clogging, video display apparatus and electronic device |
| CN101956378B (en) * | 2009-07-14 | 2014-06-04 | 上海玻璃钢研究院有限公司 | Remote control device for removing snow and dust by using compressed air and control method thereof |
| CN106940073A (en) * | 2017-03-31 | 2017-07-11 | 中科华瑞（北京）汽车环保科技有限公司 | A kind of maintaining method of in-car air cleaning facility and its application |
| CN108535148A (en) * | 2018-05-31 | 2018-09-14 | 郑州云海信息技术有限公司 | A kind of pcb board dust amount detecting device |
-
2005
- 2005-01-24 CN CN 200510045746 patent/CN1811624A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101371961B (en) * | 2007-08-23 | 2011-11-16 | 三洋电机株式会社 | Mechanism for detecting filter clogging, video display apparatus and electronic device |
| CN101956378B (en) * | 2009-07-14 | 2014-06-04 | 上海玻璃钢研究院有限公司 | Remote control device for removing snow and dust by using compressed air and control method thereof |
| CN106940073A (en) * | 2017-03-31 | 2017-07-11 | 中科华瑞（北京）汽车环保科技有限公司 | A kind of maintaining method of in-car air cleaning facility and its application |
| CN108535148A (en) * | 2018-05-31 | 2018-09-14 | 郑州云海信息技术有限公司 | A kind of pcb board dust amount detecting device |
| CN108535148B (en) * | 2018-05-31 | 2024-02-20 | 郑州云海信息技术有限公司 | PCB dust amount detection device |
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