CN103185019A - Testing device and testing method for fan - Google Patents
Testing device and testing method for fan Download PDFInfo
- Publication number
- CN103185019A CN103185019A CN2011104544504A CN201110454450A CN103185019A CN 103185019 A CN103185019 A CN 103185019A CN 2011104544504 A CN2011104544504 A CN 2011104544504A CN 201110454450 A CN201110454450 A CN 201110454450A CN 103185019 A CN103185019 A CN 103185019A
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- China
- Prior art keywords
- fan
- wind
- wind scooper
- measured
- exhaust outlet
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Abstract
The invention discloses a testing device for a fan. The testing device for the fan comprises a wind scooper and a wind speed measurement instrument arranged at the wind outlet of the wind scooper. A testing method utilizing the testing device for the fan comprises the following steps of: installing a standard fan in the wind scooper, measuring the wind speed of the wind outlet through the wind speed measurement instrument, measuring the wind speed of the wind outlet of the wind scooper when a to-be-tested fan works under the same condition, and comparing the two wind speeds to judge whether the to-be-tested fan is qualified or not. According to the testing device and the testing method, the fan can be conveniently and efficiently tested.
Description
Technical field
The present invention relates to a kind of fan test device and method.
Background technique
Fan is widely used in being used in the electronic equipment such as server heat radiation.In order to guarantee the radiating effect of fan, need test fan.Fan test can adopt laboratory testing method usually.Laboratory testing method is to utilize wind-tunnel facilities to measure the pressure-flow curve of fan.Though the laboratory testing method test result is accurate, test period is long, and needs special device, so can only inspect by random samples fan in process of production, and can't examine entirely, thereby has the risk of omission defective products.
Summary of the invention
In view of above content, be necessary to provide a kind of fan test device and test method of simple to operate, weak point consuming time.
A kind of fan test device, for detection of a fan to be measured, this fan test device comprises that one is provided with wind scooper and an at least one measuring wind speed instrument that is arranged at the exhaust outlet place of this wind scooper of relative intake grill and exhaust outlet, this fan to be measured be contained in this wind scooper and produce one from the intake grill of this wind scooper flow into and certainly this exhaust outlet flow out distinguished and admirable, this at least one measuring wind speed instrument is used for measuring the wind speed at this wind scooper exhaust outlet place.
A kind of test method of utilizing above-mentioned fan test device, for detection of a fan to be measured, this test method comprises the steps: a standard fan is installed on this wind scooper; Open this standard fan, make it produce that an intake grill from this wind scooper flows into and certainly this exhaust outlet flow out distinguished and admirable, record the wind speed Va at this wind scooper exhaust outlet place; Take out standard fan and should be installed on this wind scooper by fan to be measured; Open this fan to be measured, make it produce that an intake grill from this wind scooper flows into and certainly this exhaust outlet flow out distinguished and admirable, record the wind speed Vb at this wind scooper exhaust outlet place; Relatively Va and Vb if Vb, judges then that this fan to be measured is qualified more than or equal to Va, less than Va, judge then that this fan to be measured is defective as if Vb.
Compare prior art, fan test device of the present invention and test method produce distinguished and admirable wind speed by measurement standand fan under identical condition and fan to be measured, relatively both difference can judge just whether fan to be measured is qualified, simple testing process, efficient height then.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the three-dimensional combination figure of the preferred embodiments of fan test device of the present invention.
Fig. 2 is the use phase diagram of the fan test device among Fig. 1.
Fig. 3 is the flow chart of the preferred embodiments of test method of the present invention.
The primary component symbol description
| |
10 |
| Diapire | 11 |
| |
101 |
| |
102 |
| |
13 |
| |
15 |
| Pick and |
151 |
| |
17 |
| The measuring |
30 |
| |
31 |
| |
311 |
| |
33 |
| |
60 |
| Fan to be measured | 70 |
Following embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
See also Fig. 1, the preferred embodiments of fan test device of the present invention comprises a wind scooper 10 and three measuring wind speed instrument 30.
This wind scooper 10 is rectangle, and a diapire 11, the sidewall 13 that extends vertically upward from these diapire 11 relative both sides respectively and a vertical roof 15 that connects the top of this two side 13 are arranged.These wind scooper 10 both ends opens, and the size of its end face is roughly suitable with fan to be measured.This two opening is set at intake grill 101 and exhaust outlet 102 respectively.This roof 15 is provided with in contiguous these intake grill 101 places that vertical this two side 13 extends picks and places mouth 151.The inboard of this two side 13 is respectively equipped with one and aligns the guide rail 17 that this picks and places mouth 151.
In the present embodiment, each measuring wind speed instrument 30 comprises that a probe 31 and electrically connects the numerical reader 33 of this probe 31 by cable.The front end of this probe 31 is provided with a probe 311.The probe 31 of this three measuring wind speeds instrument 30 is individually fixed in exhaust outlet 102 places of this wind scooper 10, and makes this three probe 311 lay respectively at top, middle part and the bottom of this wind scooper 10.
Please in the lump with reference to figure 2 and 3, the preferred embodiments of fan test method of the present invention may further comprise the steps:
S1: provide one identical with the specification of fan 70 to be measured and detect through the laboratory and to confirm qualified standard fan 60, and this standard fan 60 mouthfuls 151 slipped between this two guide rail 17 from picking and placeing of this wind scooper 10, thereby this standard fan 60 is installed in this wind scooper 10.
S2: open this standard fan 60, and to this standard fan 60 its rotating speeds of input one PWM (pulsewidth modulation) SC sigmal control, make this standard fan 60 produce that an intake grill 101 from this wind scooper 10 flows into and certainly this exhaust outlet 102 flow out distinguished and admirable.Utilize this three measuring wind speeds instrument 30 to measure the wind speed of air port 102 upper, middle and lower portions respectively, and calculate its mean value Va.
S3: the mouth 151 that picks and places of this wind scooper 10 takes out these standard fan 60 certainly, the pick and place mouth 151 of fan 70 to be measured from this wind scooper 10 is slipped between this two guide rail 17, thereby should be installed in this wind scooper 10 by fan 70 to be measured.
S4: open this fan 70 to be measured, and control its rotating speed to this fan 70 inputs one pwm signal to be measured, identical with the dutycycle of the pwm signal of importing to this standard fan 60 to the pwm signal of these fan 70 inputs to be measured.This fan to be measured 70 produce that an intake grill 101 from this wind scooper 10 flows into and certainly this exhaust outlet 102 flow out distinguished and admirable.Utilize this three measuring wind speeds instrument 30 to measure the wind speed of air port 102 upper, middle and lower portions respectively, and calculate its mean value Vb.Because fan 70 to be measured is contained in the wind scooper 10 and the size of the end face of wind scooper 10 is roughly suitable with fan to be measured 70, distinguished and admirable this wind scooper 10 that flows through fully of its generation.Therefore, under the constant situation of the sectional area of wind scooper 10, if the wind speed mean value Vb that records is more high, then the radiating effect of fan is more good.
S5: compare Va and Vb;
S6: if Vb is more than or equal to Va, show that the radiating effect of fan 70 to be measured is better than the radiating effect of standard fan 60, thereby judge that fan to be measured 70 is qualified;
S7: if Vb is less than Va, show that the radiating effect of fan 70 to be measured is worse than the radiating effect of standard fan 60, thereby judge that this fan to be measured 70 is defective.
Another mode of execution of fan test method of the present invention detects fan 70 to be measured respectively and is receiving higher duty cycle, pwm signal as 100% and lower dutycycle, whether qualified during as 20% pwm signal, if all qualified under two kinds of situations, think that then this fan to be measured 70 is qualified.Otherwise, as long as defective under a kind of situation, think that then this fan to be measured 70 is defective.
Claims (8)
1. fan test device, for detection of a fan to be measured, this fan test device comprises that one is provided with wind scooper and at least one measuring wind speed instrument that is arranged at the exhaust outlet place of this wind scooper of relative intake grill and exhaust outlet, this fan to be measured be contained in this wind scooper and produce one from the intake grill of this wind scooper flow into and certainly this exhaust outlet flow out distinguished and admirable, this measuring wind speed instrument is used for measuring the wind speed at the exhaust outlet place of this wind scooper.
2. fan test device as claimed in claim 1 is characterized in that: this wind-guiding covers in contiguous this intake grill place and is provided with a mouth that picks and places that is used for fan to be measured is put into or taken out this wind scooper.
3. fan test device as claimed in claim 2 is characterized in that: this wind scooper aligns this and picks and places and mouthful be provided with two relative guide rails, and this fan to be measured can be contained between this two guide rail.
4. fan test device as claimed in claim 1, it is characterized in that: this measuring wind speed instrument comprises that a probe, a numerical reader and are connected in the rear end of this probe and the cable of this numerical reader, and the front end of this probe is provided with a probe.
5. fan test device as claimed in claim 1, it is characterized in that: this fan test device comprises three measuring wind speed instrument, the probe of this three measuring wind speeds instrument is individually fixed in top, middle part and the bottom of the exhaust outlet of this wind scooper.
6. test method of utilizing fan test device as claimed in claim 1, for detection of a fan to be measured, this test method comprises the steps:
One standard fan is installed on this wind scooper;
Open this standard fan, make it produce that an intake grill from this wind scooper flows into and certainly this exhaust outlet flow out distinguished and admirable, record the wind speed Va at the place, air port that this wind scooper goes out;
Take out standard fan and should be installed on this wind scooper by fan to be measured;
Open this fan to be measured, make it produce that an intake grill from this wind scooper flows into and certainly this exhaust outlet flow out distinguished and admirable, record the wind speed Vb at the exhaust outlet place of this wind scooper;
Relatively Va and Vb if Vb, judges then that this fan to be measured is qualified more than or equal to Va, less than Va, judge then that this fan to be measured is defective as if Vb.
7. test method as claimed in claim 6, it is characterized in that: this wind-guiding covers in contiguous this intake grill place and is provided with one and picks and places mouth, this wind scooper aligns this and picks and places mouth and be provided with two relative guide rails, and standard fan or fan to be measured can pick and place from this and mouthful slip between this two guide rail.
8. test method as claimed in claim 6, it is characterized in that: the upper, middle and lower portion of the exhaust outlet of this wind scooper arranges a measuring wind speed instrument respectively, and Va and Vb are the mean value of the wind speed of this wind scooper exhaust outlet upper, middle and lower portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104544504A CN103185019A (en) | 2011-12-30 | 2011-12-30 | Testing device and testing method for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104544504A CN103185019A (en) | 2011-12-30 | 2011-12-30 | Testing device and testing method for fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103185019A true CN103185019A (en) | 2013-07-03 |
Family
ID=48676395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104544504A Pending CN103185019A (en) | 2011-12-30 | 2011-12-30 | Testing device and testing method for fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103185019A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778110A (en) * | 2015-04-16 | 2015-07-15 | 浪潮电子信息产业股份有限公司 | Air duct abnormality detection method based on nios ii soft core for server system |
| CN115389780A (en) * | 2022-10-28 | 2022-11-25 | 深圳市永联科技股份有限公司 | Wind tunnel test equipment and using method thereof |
Citations (7)
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|---|---|---|---|---|
| JPS61250398A (en) * | 1985-04-29 | 1986-11-07 | Nec Corp | Abnormality detection circuit of blower |
| US6470740B2 (en) * | 2000-12-28 | 2002-10-29 | Industrial Technology Research Institute | Low speed wind tunnel with adjustable moving boundary |
| KR20030091845A (en) * | 2003-08-21 | 2003-12-03 | 홍성무 | Fan Trouble Detection Device Fixing Air Pipe & Air Duct |
| CN101328901A (en) * | 2008-07-25 | 2008-12-24 | 华为技术有限公司 | Apparatus and method for detecting fan fault |
| CN201293426Y (en) * | 2008-10-10 | 2009-08-19 | 刘兆峰 | Direct drive type air flow detection device |
| JP2009267147A (en) * | 2008-04-25 | 2009-11-12 | Mitsubishi Electric Corp | Operating state inspection device for cooling fan |
| TW201017135A (en) * | 2008-10-31 | 2010-05-01 | Unihan Corp | Apparatus for testing air flow of fan and testing method thereof |
-
2011
- 2011-12-30 CN CN2011104544504A patent/CN103185019A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61250398A (en) * | 1985-04-29 | 1986-11-07 | Nec Corp | Abnormality detection circuit of blower |
| US6470740B2 (en) * | 2000-12-28 | 2002-10-29 | Industrial Technology Research Institute | Low speed wind tunnel with adjustable moving boundary |
| KR20030091845A (en) * | 2003-08-21 | 2003-12-03 | 홍성무 | Fan Trouble Detection Device Fixing Air Pipe & Air Duct |
| JP2009267147A (en) * | 2008-04-25 | 2009-11-12 | Mitsubishi Electric Corp | Operating state inspection device for cooling fan |
| CN101328901A (en) * | 2008-07-25 | 2008-12-24 | 华为技术有限公司 | Apparatus and method for detecting fan fault |
| CN201293426Y (en) * | 2008-10-10 | 2009-08-19 | 刘兆峰 | Direct drive type air flow detection device |
| TW201017135A (en) * | 2008-10-31 | 2010-05-01 | Unihan Corp | Apparatus for testing air flow of fan and testing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778110A (en) * | 2015-04-16 | 2015-07-15 | 浪潮电子信息产业股份有限公司 | Air duct abnormality detection method based on nios ii soft core for server system |
| CN115389780A (en) * | 2022-10-28 | 2022-11-25 | 深圳市永联科技股份有限公司 | Wind tunnel test equipment and using method thereof |
| CN115389780B (en) * | 2022-10-28 | 2023-02-14 | 深圳市永联科技股份有限公司 | Application method of wind tunnel testing equipment |
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Application publication date: 20130703 |