CN103925942B - The Air Filter detecting device of electronic equipment and method - Google Patents
The Air Filter detecting device of electronic equipment and method Download PDFInfo
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- CN103925942B CN103925942B CN201410100338.4A CN201410100338A CN103925942B CN 103925942 B CN103925942 B CN 103925942B CN 201410100338 A CN201410100338 A CN 201410100338A CN 103925942 B CN103925942 B CN 103925942B
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- fan
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- air filter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
- G01K3/14—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of space
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- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The present invention provides the Air Filter detecting device of a kind of electronic equipment, electronic equipment includes the fan running work under different gears, this detecting device includes ambient temperature detection unit for detecting ambient temperature, internal temperature detection unit is for detecting the internal temperature of electronic equipment, fan speed control unit is used for controlling fan and is in different gear, record unit is used for recording each gear of fan and fan when each gear steady operation in electronic equipment correspondence, external temperature is reference threshold, collecting unit is in timing acquiring fan gear and correspondence, external environment temperature, comparing unit is by the fan gear gathered and correspondence every time, external temperature carries out correspondence with the reference threshold recorded and compares, Alarm Unit determines whether carry out blocking alarm and show according to comparative result。In this Air Filter detecting device, detecting inside and outside portion ambient temperature by temperature detecting unit, cost is low, volume is little。Present invention also offers the Air Filter detection method of a kind of electronic equipment。
Description
Technical field
The present invention relates to heat dissipation technology, particularly relate to Air Filter detecting device and the detection method of a kind of electronic equipment。
Background technology
At present; in order to adapt to different application environment; reduce the dust corrosion to electronic equipment; most wind-cooling heat dissipating equipment all can install Air Filter; Air Filter laying dust can affect air-cooled performance; cause the reduction of electronic equipment heat exchanger efficiency; as adopted human at periodic intervals to safeguard, Air Filter not only maintenance cost is very high; and because of the difference of equipment operating environment and season; Air Filter chocking-up degree has very big-difference; periodic maintenance would generally cause the maintenance safeguarding delayed or Air Filter of Air Filter excessively frequent, is therefore generally adopted aptitude manner and Air Filter blocking is detected。
Timing intelligent detection technique is by increasing the mode of intervalometer, it is allowed to user arranges timer duration according to equipment operating environment, passes through audible and visual alarm or report webmaster after this timer expiry, reminds user to check and cleans Air Filter。Deformation intelligent testing technology is that after utilizing Air Filter blocking, system flow resistance increases, and the principle that fan causes Air Filter to deform upon when the bigger operating point of blast is run, the deformation monitoring Air Filter by arranging detection switch judges the chocking-up degree of Air Filter。Wind speed intelligent testing technology detects the chocking-up degree of Air Filter by detecting the wind speed through Air Filter, the change of the windage characteristic parameter that wind speed brings after utilizing Air Filter blocking, it is judged that Air Filter chocking-up degree。Light transmittance intelligent testing technology is to utilize laser can decay during transmission from Air Filter, and the attenuation degree of laser is by the principle of the dust thickness effect on Air Filter, is determined the blocked state of Air Filter by the transmitted light intensity detected from the laser of Air Filter transmission。
But, in timing intelligent detection technique, it is necessary to carry out alarm time set according to artificial experience, erroneous judgement easily occurs when equipment runs under various circumstances, thus the difference of Air Filter duration of congestion that applied environment brings cannot be identified automatically。In deformation intelligent testing technology, owing to most electronic equipment dissipating heat system wind pressures are little, deform only small after Air Filter blocking, thus the sensitivity requirement of detection switch is higher, it is easy to error detection is caused by ectocine。In wind speed intelligent testing technology, air velocity transducer takes up room relatively big, and relatively costly, in the equipment that size and cost requirement are higher, feasibility is not high。In light transmittance intelligent testing technology, generating laser and light intensity sensor need to take certain space, and dust can accumulate on generating laser and light intensity sensor, it is possible to cause that transducer sensitivity reduces, and alarm by mistake occur。
Summary of the invention
In view of this, the present invention provides a kind of Air Filter detecting device and the method for electronic equipment that can improve detection reliability, less costly and small volume。
A kind of Air Filter detecting device of electronic equipment, it is for the alarm when the Air Filter of electronic equipment blocks, described electronic equipment includes at least one fan for the multiple single-decks worked in electronic equipment are dispelled the heat, at least one fan described runs work under different gears, described Air Filter detecting device includes an ambient temperature detection unit, one internal temperature detection unit, one fan speed control unit, one record unit, one collecting unit, one comparing unit and an Alarm Unit, described ambient temperature detection unit is arranged on the air inlet of described electronic equipment for detecting ambient temperature, described internal temperature detection unit is arranged on the single-deck of described electronic equipment for detecting the internal temperature of electronic equipment, described fan speed control unit is used for controlling at least one fan and is in different gear, described record unit is reference threshold for recording each gear of at least one fan described and the described fan ambient temperature that electronic equipment is corresponding when different gear steady operation and interior environment temperature, the gear of described collecting unit at least one fan described in timing acquiring and corresponding interior environment temperature and ambient temperature, described comparing unit described collecting unit is gathered every time described in gear and the corresponding interior environment temperature of at least one fan and ambient temperature carry out corresponding comparison with the reference threshold of described recording unit records, described Alarm Unit determines whether carry out Air Filter blocking alarm and show according to the comparative result of described comparing unit。
A kind of Air Filter detection method of electronic equipment, it is for the alarm when the Air Filter of electronic equipment blocks, described electronic equipment includes at least one fan for the multiple single-decks worked in electronic equipment are dispelled the heat, at least one fan described runs work under multiple gears, it is characterized in that, described Air Filter detection method comprises the following steps:
Each gear of record at least one fan described and the described fan ambient temperature that electronic equipment is corresponding when different gear steady operation and interior environment temperature are reference threshold；
The gear of at least one fan of electronic equipment described in timing acquiring and corresponding interior environment temperature and ambient temperature；
The gear of at least one fan described in every time gathering is carried out corresponding comparison with corresponding interior environment temperature and ambient temperature with the reference threshold recorded；
Determine whether carry out Air Filter blocking alarm and show according to comparative result。
Compared with prior art, in the Air Filter detecting device of electronic equipment provided by the invention and method, record unit all carries out reference threshold collection when the start of each electronic equipment runs, thus adapting to various environment, various height above sea level and various different Air Filter, being independent of default configuration or artificial experience, stability is better, utilizes temperature detecting unit detection internal and external environment temperature simultaneously, less costly, volume is relatively small, adaptability is very strong。
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the Air Filter detecting device of electronic equipment provided by the invention。
Fig. 2 is the Air Filter air cooling system schematic diagram in Fig. 1。
Fig. 3 is the flow chart of the Air Filter detection method of electronic equipment provided by the invention。
Fig. 4 is the intelligent speed-regulating method flow diagram in Fig. 3。
Main element symbol description
Electronic equipment 10
Fan 12
Backboard 14
Single-deck 16
Adapter 162
Air Filter 18
Air Filter detecting device 100
Ambient temperature detection unit 110
Internal temperature detection unit 120
Fan speed control unit 140
Record unit 150
Collecting unit 160
Comparing unit 170
Alarm Unit 180
Single-deck detection unit 190
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing。
Detailed description of the invention
Refer to Fig. 1, the Air Filter detecting device 100 of a kind of electronic equipment that embodiment of the present invention provides is for the alarm when the Air Filter of electronic equipment 10 blocks, described electronic equipment 10 includes 12, backboard 14 of at least one fan, multiple single-deck 16 and an Air Filter 18, it is understood that the quantity of fan 12 can sets itself according to need。As in figure 2 it is shown, described fan 12 is for carrying out wind-cooling heat dissipating to the plurality of single-deck 16, fan 12 can run work as required under different gears, multiple single-decks 16 is provided with adapter 162 in order to be connected with described backboard 14。
Described Air Filter detecting device 100 includes 110, internal temperature detection 120, fan speed control unit 140 of unit of an ambient temperature detection unit, record unit 160, comparing unit 170 of 150, collecting unit and an Alarm Unit 180。Multiple single-decks 16 and described fan speed control unit 130 are connected with backboard 14 through the adapter 162 of single-deck 16, and described ambient temperature detection unit 110, described internal temperature detection unit 120 and fan speed control unit 140 communicate with described record unit 150, described collecting unit 160, described comparing unit 170 and described Alarm Unit 180 through backboard 14。
Ambient temperature detection unit 110 is arranged on the air inlet of 10 electronic equipments for detection ambient temperature Ta, internal temperature detection unit 120 is arranged on the single-deck 16 of electronic equipment 10 for detecting the internal temperature Tin of electronic equipment 10, and fan speed control unit 140 is used for controlling fan 12 and is in different gear work。
Record unit 150 is for recording the interior environment temperature Tin and ambient temperature Ta of electronic equipment 10 correspondence when regulating fan 12 to each gear steady operation, and each gear of fan 12 and the internal temperature Tin and external temperature Ta of the electronic equipment 10 corresponding when each gear works are stored as reference threshold。
The reference threshold of record unit 150 record could be arranged to each gear and fan 12 interior environment temperature Tin and ambient temperature Ta difference of electronic equipment 10 correspondence when each gear steady operation of record fan 12。The reference threshold of record unit 150 record may be arranged as each gear of record fan 12 and the ambient temperature Ta of fan electronic equipment 10 correspondence when each gear steady operation。
Under identical fan gear, when the difference of internal temperature Tin and ambient temperature Ta is more than reference temperature difference threshold, being considered as Air Filter blocking, gap is more big, blocks more serious。Its principle is as shown in Equation (1):
Q=m*Cp*(Tin-Ta)(1)
Wherein, Q is equipment heat consumption, and Cp is air ratio thermal capacitance, and m is MAF。Q is constant, and Cp changes less in certain temperature range, is considered as quantitatively, under same rotational speed, if Air Filter blocking, necessarily occurs that MAF m reduces, and therefore, the difference of single-deck internal temperature Tin and ambient temperature Ta will necessarily become big。
Certainly, carry out gear herein and patrol and examine, except threshold temperature can be obtained, it is also possible to evade the heat radiation difference owing to height above sea level brings。According to formula (2):
m=ρ*V(2)
Wherein, ρ is atmospheric density, and V is volume of air flow, and m is MAF。Owing to height above sea level is different, large change can be there is in atmospheric density ρ, although under different rotation speeds of the fan, volume of air flow V change is little, but the density variation that height above sea level brings, can cause that different regions (Tin-Ta) differ greatly, carry out gear and patrol and examine acquisition single-deck internal temperature, ambient temperature, fan gear, equipment can be obtained and run on-site parameter, thus having evaded the impact that height above sea level brings。
That is, it is contemplated that electronic equipment 10 operates in different Altitude Regions, atmospheric density difference can cause that equipment runs difference to some extent, all needs to carry out reference threshold record to avoid solidification temperature threshold values when each electronic equipment 10 is started shooting。
After the temperature parameter completing each gear of fan and correspondence gathers, system automatically switches to intelligent speed-regulating state, in intelligent speed-regulating running status, collecting unit 160 is for real-time gear during timing acquiring fan 12 normal operation after electronic equipment 10 temperature stabilization runs and corresponding interior environment temperature and ambient temperature。It is understood that the duration sets itself according to actual needs of timing。
It is understandable that, intelligent speed-regulating method is upshift according to single-deck set in advance temperature threshold and downshift temperature threshold, timing detection single-deck internal temperature and fan gear after the fan of electronic equipment runs with a certain stabilization of speed, and fan heightens one grade when single-deck internal temperature is more than upshift threshold temperature, when fan internal temperature is less than downshift threshold temperature, fan turns down one grade。Thus according to intelligent speed-regulating method, fan according to environmental change, can be sought to meet the fan gear of heat radiation, reduce noise and energy consumption。
The reference threshold that the gear of the fan 12 that collecting unit 160 is gathered by comparing unit 170 every time, corresponding interior environment temperature and external environment condition temperature record to record unit 150 carries out corresponding comparison。Alarm Unit 180 determines whether carry out Air Filter blocking alarm and show according to the comparative result of comparing unit。
At each gear that reference threshold is fan 12 and fan 12 when the interior environment temperature of electronic equipment 10 correspondence when each gear steady operation and ambient temperature difference, fan 12 corresponding temperature gap threshold value under identical gear that the interior environment temperature of the electronic equipment 10 under the fan 12 work at present gear that collecting unit 160 is gathered by comparing unit and ambient temperature difference record with record unit 150 compares, under the identical gear of fan 12, during the temperature gap threshold value that the interior environment temperature that collecting unit 160 gathers records more than record unit 150 with ambient temperature difference, Alarm Unit 180 carries out Air Filter blocking alarm and shows。It is understood that display mode can be undertaken by telecommunication mode。
At each gear that reference threshold is fan 12 and fan 12 during the ambient temperature of electronic equipment 10 correspondence when each gear steady operation, the ambient temperature of electronic equipment 10 work at present and the fan gear of correspondence that collecting unit 160 is gathered by comparing unit compare with recording fan gear corresponding under the same external ambient temperature that unit 150 records, under identical ambient temperature, when the fan gear that collecting unit 160 gathers is more than the fan gear of described recording unit records, Alarm Unit 180 carries out Air Filter blocking alarm and shows。It is understood that display mode can be undertaken by telecommunication mode。
Single-deck meeting owing to working in electronic equipment can be newly-increased to some extent because being actually needed, for whether better real-time accurate measurements Air Filter blocks, Air Filter detecting device 100 also includes a single-deck detection unit 190, described detection unit 190 is for comparing unit 170 judges to detect when Air Filter does not block whether occur newly-increased single-deck in electronic equipment, record unit 150 records corresponding reference threshold again when there is newly-increased single-deck, namely ambient temperature detection unit 110, internal temperature detection unit 120 and fan speed control unit 140 again detect under fan difference gear corresponding inside and outside temperature and record renewal, collecting unit 160 proceeds timing acquiring relevant parameter when not increasing single-deck in the electronic device newly。
Referring to Fig. 3, it is the Air Filter detection method of a kind of electronic equipment provided by the invention, and it is for the alarm when the Air Filter of electronic equipment blocks, and described Air Filter detection method comprises the following steps:
S110: each gear of record fan and the fan ambient temperature that electronic equipment is corresponding when different gear steady operation and interior environment temperature are reference threshold；
S120: the fan gear of timing acquiring electronic equipment and corresponding interior environment temperature and ambient temperature；
S130: the fan gear every time gathered is carried out corresponding comparison with corresponding interior environment temperature and ambient temperature with the reference threshold recorded；
S140: determine whether carry out Air Filter blocking alarm and show according to comparative result。
In step s 110, utilize record unit 150 to record the ambient temperature Ta of ambient temperature detection unit 110 detection and internal temperature detection unit 120 detects the internal temperature Tin of electronic equipment 10, and each gear of fan 12 and the internal temperature Tin and external temperature Ta of the electronic equipment 10 corresponding when each gear works are stored as reference threshold。The reference threshold of record unit 150 record could be arranged to each gear and fan 12 interior environment temperature Tin and ambient temperature Ta difference of electronic equipment 10 correspondence when each gear steady operation of record fan 12。The reference threshold of record unit 150 record may be arranged as each gear of record fan 12 and the ambient temperature Ta of fan electronic equipment 10 correspondence when each gear steady operation。
In the step s 120, in intelligent speed-regulating running status, utilize collecting unit 160 real-time gear during timing acquiring fan 12 normal operation and corresponding interior environment temperature and ambient temperature after electronic equipment 10 temperature stabilization runs。It is understood that the duration sets itself according to actual needs of timing。
Referring to Fig. 4, it is fan intelligent speed-regulating method, and described intelligent speed-regulating method comprises the following steps:
S121: device power, lower configuration；
S122: fan runs with a certain temperature rotating speed；
S123: timing detection single-deck internal temperature and fan gear；
S124: whether compare single-deck internal temperature more than upshift threshold temperature set in advance, if so, then enters step S125, if it is not, then enter step S126；
S125: fan is heightened one grade；
S126: whether compare single-deck internal temperature less than downshift threshold temperature, if so, then enter step S127, if it is not, then enter step S123；
S127: fan is turned down one grade。
In step s 130, at each gear that reference threshold is fan 12 and fan 12 when the interior environment temperature of electronic equipment 10 correspondence when each gear steady operation and ambient temperature difference, fan 12 corresponding temperature gap threshold value under identical gear that the interior environment temperature of the electronic equipment 10 under the fan 12 work at present gear that collecting unit 160 gathers by comparing unit and ambient temperature difference record with record unit 150 is utilized to compare。At each gear that reference threshold is fan 12 and fan 12 during the ambient temperature of electronic equipment 10 correspondence when each gear steady operation, the ambient temperature of electronic equipment 10 work at present that collecting unit 160 gathers by comparing unit and the fan gear of the correspondence fan gear corresponding with under the same external ambient temperature that record unit 150 records is utilized to compare。
In step S140, under the identical gear of fan 12, during the temperature gap threshold value that the interior environment temperature that collecting unit 160 gathers records more than record unit 150 with ambient temperature difference, utilize Alarm Unit 180, carry out Air Filter blocking alarm and show。Under identical ambient temperature, when the fan gear that collecting unit 160 gathers is more than the fan gear of described recording unit records, Alarm Unit 180 is utilized to carry out Air Filter blocking alarm and show。
Single-deck meeting owing to working in electronic equipment can be newly-increased to some extent because being actually needed, for whether better real-time accurate measurements Air Filter blocks, further comprising the steps of detecting after Air Filter does not block: to judge whether electronic equipment occurs newly-increased single-deck, if, then enter step S110 again to record reference threshold, if it is not, then enter step S120。
In the Air Filter detecting device of electronic equipment provided by the invention and method, record unit 150 all carries out reference threshold collection when start every time, thus adapting to various environment, various height above sea level and various different Air Filter, it is independent of default configuration or artificial experience, stability is better, utilizing temperature detecting unit detection internal and external environment temperature, less costly, volume is relatively small, adaptability is very strong simultaneously。
It is understood that for the person of ordinary skill of the art, it is possible to conceive according to the technology of the present invention and make other various corresponding changes and deformation, and all these change and deform the protection domain that all should belong to the claims in the present invention。
Claims (6)
1. the Air Filter detecting device of an electronic equipment, it is for the alarm when the Air Filter of electronic equipment blocks, described electronic equipment includes at least one fan for the multiple single-decks worked in electronic equipment are dispelled the heat, at least one fan described runs work under different gears, it is characterized in that, described Air Filter detecting device includes an ambient temperature detection unit, one internal temperature detection unit, one fan speed control unit, one record unit, one collecting unit, one comparing unit and an Alarm Unit, described ambient temperature detection unit is arranged on the air inlet of described electronic equipment for detecting ambient temperature, described internal temperature detection unit is arranged on the single-deck of described electronic equipment for detecting the internal temperature of electronic equipment, described fan speed control unit is used for controlling at least one fan and is in different gear, described record unit is reference threshold for recording each gear of at least one fan described and at least one fan described ambient temperature that electronic equipment is corresponding when different gear steady operation and interior environment temperature, the gear of described collecting unit at least one fan described in timing acquiring and corresponding interior environment temperature and ambient temperature, described comparing unit described collecting unit is gathered every time described in gear and the corresponding interior environment temperature of at least one fan and ambient temperature carry out corresponding comparison with the reference threshold of described recording unit records, described Alarm Unit determines whether carry out Air Filter blocking alarm and show according to the comparative result of described comparing unit；
The reference threshold of described recording unit records is each gear of at least one fan described and at least one fan described interior environment temperature that electronic equipment is corresponding when each gear steady operation and ambient temperature difference threshold, described comparing unit described collecting unit is gathered described in the interior environment temperature of electronic equipment under at least one fan work at present gear and ambient temperature difference compare with corresponding temperature gap threshold value under the identical gear of at least one fan described in described recording unit records, carry out Air Filter blocking alarm and show when the interior environment temperature of described Alarm Unit electronic equipment of described collecting unit collection under the identical gear of at least one fan described and ambient temperature difference are more than the temperature gap threshold value of described recording unit records；
The reference threshold of described recording unit records is each gear and at least one fan described ambient temperature that electronic equipment is corresponding when each gear steady operation of described fan, at the electronic equipment environment nowadays temperature that described collecting unit is gathered by described comparing unit, under the identical ambient temperature of the gear of at least one fan described and described recording unit records, corresponding fan gear compares, and described Alarm Unit carries out Air Filter and blocks and alert and show when the gear of the fan that described collecting unit gathers is more than the gear of at least one fan described in described recording unit records。
2. the Air Filter detecting device of electronic equipment as claimed in claim 1, it is characterized in that, described electronic equipment also includes a backboard, the plurality of single-deck is provided with adapter, described ambient temperature detection unit, described internal temperature detection unit and described fan speed control unit are connected with described backboard through described adapter, and described ambient temperature detection unit, described internal temperature detection unit and described fan speed control unit communicate through described backboard with described record unit, described collecting unit, described comparing unit and described Alarm Unit。
3. the Air Filter detecting device of electronic equipment as claimed in claim 1, it is characterized in that, the Air Filter detecting device of described electronic equipment also includes a single-deck detection unit for detecting whether increase single-deck in electronic equipment newly, and described record unit detects unit at described single-deck and detects that existence records reference threshold when increasing single-deck newly again。
4. the Air Filter detection method of an electronic equipment, it is for the alarm when the Air Filter of electronic equipment blocks, described electronic equipment includes at least one fan for the multiple single-decks worked in electronic equipment are dispelled the heat, at least one fan described runs work under multiple gears, it is characterized in that, described Air Filter detection method comprises the following steps:
Each gear of record at least one fan described and at least one fan described ambient temperature that electronic equipment is corresponding when different gear steady operation and interior environment temperature are reference threshold；
The gear of at least one fan of electronic equipment described in timing acquiring and corresponding interior environment temperature and ambient temperature；
The fan gear every time gathered is carried out corresponding comparison with corresponding interior environment temperature and ambient temperature with the reference threshold recorded；The reference threshold recorded is each gear of at least one fan described and corresponding at least one fan described interior environment temperature and the ambient temperature difference threshold when each gear steady operation of electronic equipment, in the comparison step, by the interior environment temperature of the electronic equipment under at least one fan work at present gear described in gathering and ambient temperature difference with record described under the identical gear of at least one fan corresponding temperature gap threshold value compare；The reference threshold recorded is each gear of at least one fan described and described fan corresponding to the electronic equipment ambient temperature when each gear steady operation, in the comparison step, corresponding fan gear under ambient temperature identical with the described electronic equipment recorded for the gear of at least one fan described at the environment nowadays temperature of the electronic equipment gathered is compared；
Determine whether carry out Air Filter blocking alarm and show according to comparative result。
5. the Air Filter detection method of electronic equipment as claimed in claim 4, it is characterized in that, in described alarm step, carry out Air Filter blocking alarm when the interior environment temperature of the electronic equipment gathered under the described identical gear of at least one fan and ambient temperature difference are more than the temperature gap threshold value recorded and show。
6. the Air Filter detection method of electronic equipment as claimed in claim 4, it is characterised in that in described alarm step, carries out Air Filter blocking alarm and shows when the gear of the fan gathered is more than the gear of the described fan recorded。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410100338.4A CN103925942B (en) | 2014-03-18 | 2014-03-18 | The Air Filter detecting device of electronic equipment and method |
| PCT/CN2014/088355 WO2015139445A1 (en) | 2014-03-18 | 2014-10-11 | Detection apparatus and method for dustproof mesh in electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410100338.4A CN103925942B (en) | 2014-03-18 | 2014-03-18 | The Air Filter detecting device of electronic equipment and method |
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| CN103925942A CN103925942A (en) | 2014-07-16 |
| CN103925942B true CN103925942B (en) | 2016-06-22 |
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| CN102510706B (en) * | 2011-11-01 | 2014-12-31 | 杭州依赛通信有限公司 | Method for detecting dustproof filter screen by temperature difference and device utilizing method |
| CN102748837B (en) * | 2012-07-28 | 2016-04-20 | Tcl空调器(中山)有限公司 | A kind of air-conditioner and filter screen dirtying thereof block up automatic reminding method |
| CN103574838B (en) * | 2012-08-08 | 2017-06-27 | 北京动力源科技股份有限公司 | A kind of dirty stifled alarm method of fresh air conditioner for computer room device filter screen and device |
| CN103424277B (en) * | 2013-08-23 | 2016-08-24 | 联合汽车电子有限公司 | A kind of diagnostic method of cooling system |
| CN103925942B (en) * | 2014-03-18 | 2016-06-22 | 烽火通信科技股份有限公司 | The Air Filter detecting device of electronic equipment and method |
-
2014
- 2014-03-18 CN CN201410100338.4A patent/CN103925942B/en active Active
- 2014-10-11 WO PCT/CN2014/088355 patent/WO2015139445A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN103925942A (en) | 2014-07-16 |
| WO2015139445A1 (en) | 2015-09-24 |
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