CN103185671A - Fan testing device and testing method - Google Patents
Fan testing device and testing method Download PDFInfo
- Publication number
- CN103185671A CN103185671A CN2011104506413A CN201110450641A CN103185671A CN 103185671 A CN103185671 A CN 103185671A CN 2011104506413 A CN2011104506413 A CN 2011104506413A CN 201110450641 A CN201110450641 A CN 201110450641A CN 103185671 A CN103185671 A CN 103185671A
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- Prior art keywords
- fan
- measured
- heater
- wind scooper
- air inlet
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Abstract
A fan testing device comprises an air guiding cover, a heating element contained in the air guiding cover, a first temperature measuring set closely attached to the heating element, and a second temperature measuring set arranged on the air inlet of the air guiding cover. A testing method utilizing the fan testing device comprises installing a standard fan in the air guiding cover and carrying out heat radiating on the heating element, measuring and calculating the temperature difference of the surface of the heating element and the air inlet of the air guiding cover, measuring the temperature difference of the surface of the heating element and the air inlet of the air guiding cover when the fan to be tested works under identical conditions, and comparing the two temperature differences to judge whether the fan to be tested is qualified or not. A fan can be tested conveniently and efficiently by utilizing the testing device and the testing method.
Description
Technical field
The present invention relates to a kind of fan test device and method.
Background technology
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 need carry out in the laboratory usually, and utilizes wind-tunnel facilities to measure the pressure-flow curve of fan.Though this method of testing test result is accurate, test period is long, and needs specialized equipment, so can only carry out online sampling observation to fan in process of production, and can't detect one by one, 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 method of testing of simple to operate, weak point consuming time.
A kind of fan test device, comprise that a wind scooper, that is provided with an air inlet and an air outlet is contained in second temperature measuring set that first temperature measuring set and that heater, in this wind scooper is posted by this heater is arranged at the air inlet place of this wind scooper, fan to be measured produces in this wind scooper from this air inlet and flow to the distinguished and admirable so that this heater is dispelled the heat of this air outlet, this first temperature measuring set is measured the surface temperature of this heater, and this second temperature measuring set is measured the environment temperature at this air inlet place.
A kind of method of testing of utilizing the said fans proving installation, this method of testing comprises the steps: to open this heater; One standard fan is installed in this wind scooper; Open the standard fan generation and flow to the distinguished and admirable so that this heater is dispelled the heat of air outlet from air inlet; This first and second temperature measuring set is measured the environment temperature Te at the air outlet place of the surface temperature Ta of heater and this wind scooper respectively, and calculates the difference DELTA T1 of this Ta and Te; Take out standard fan and should be installed on this wind scooper by fan to be measured; Open this fan generation to be measured and flow to the distinguished and admirable so that this heater is dispelled the heat of air outlet from air inlet; This first temperature measuring set is measured the surface temperature Tb of heater, and calculates the difference DELTA T2 of this Tb and Te; And compare Δ T1 and Δ T2, less than Δ T1, then this fan to be measured is qualified as if Δ T2; If Δ T2 is greater than Δ T1, this fan to be measured is defective
Compare prior art, fan test device of the present invention and method of testing are by the radiating effect to the heating piece of measurement standard fan and fan to be measured under identical condition, 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 constitutional diagram of the fan test device among Fig. 1.
Fig. 3 is the process flow diagram of the preferred embodiments of fan test method of the present invention.
The main element symbol description
| |
10 |
| Diapire | 11 |
| |
101 |
| |
102 |
| |
13 |
| |
15 |
| Pick and |
151 |
| |
17 |
| |
20 |
| First temperature measuring set | 30 |
| Second temperature measuring set | 40 |
| |
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, a heater 20, one first temperature measuring set 30 and one second temperature measuring set 40.
This wind scooper 10 is cuboid, comprises a diapire 11, the two side 13 of extending vertically upward from these diapire 11 relative both sides respectively and a vertical roof 15 that connects the top of this two side 13.Size and the fan to be measured of the end face at these wind scooper 10 two ends are roughly suitable.The both ends of the surface of this wind scooper 10 are established an air inlet 101 and an air outlet 102 respectively.The direction of this roof 15 in contiguous these air inlet 101 places along vertical this two side 13 is provided with one and picks and places mouth 151.The inboard of each sidewall 13 is provided with one and picks and places mouthfuls 151 guide rail 17 over against this.
In the present embodiment, this heater 20 is an electric heating derby.These heater 20 contiguous inboards of being fixed in this diapire 11.
In the present embodiment, this first and second temperature measuring set 30 and 40 all with thermopair as temperature-sensing element.The thermopair of this first temperature measuring set 30 is posted by the end face of this heater 20.The thermopair of this second temperature measuring set 40 is installed on air inlet 101 places 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: open this heater 20, and make the heating power of this heater 20 keep constant.
S2: a qualified standard fan 60 is slipped between this two guide rail 17 from the mouth 151 that picks and places of this wind scooper 10, thereby this standard fan 60 is installed in this wind scooper 10.
S3: open this standard fan 60, and to this standard fan 60 its rotating speeds of input one PWM (width modulation) signal controlling, produce an air inlet 101 from this wind scooper 10 and flow to distinguished and admirable from the air outlet 102 of this wind scooper 10, with to these heater 20 heat radiations.
S4: this first and second temperature measuring set 30 and 40 is measured the environment temperature Te at air inlet 101 places of the surface temperature Ta of heater 20 and this wind scooper 10 respectively, and is calculated the difference DELTA T1 of Ta and Te by the tester.
S5: take out this standard fan 60, the pick and place mouth 151 of a fan 70 to be measured from this wind scooper 10 slipped between this two guide rail 17.
S6: open this fan 70 to be measured, and control its rotating speed to this fan to be measured 70 inputs one pwm signal, produce air outlet 102 distinguished and admirable that an air inlet 101 from this wind scooper 10 flow to this wind scooper 10, with to these heater 20 heat radiations.Pwm signal to these fan 70 inputs to be measured is identical with the dutycycle of the pwm signal of importing to this standard fan 60.
S7: utilize this first temperature measuring set 30 to record heater surface temperature Tb, and calculated the difference DELTA T2 of Tb and Te by the tester.T2 is more little for Δ, heater 20 surface temperature Tb is described more near environment temperature Te, and then the radiating effect of fan 70 to be measured is more good.
S8: compare Δ T1 and Δ T2;
S9: if Δ T2 is less than or equal to Δ T1, the radiating effect that then shows fan 70 to be measured is better than or equals standard fan 60, thereby judges that fan to be measured 70 is qualified;
S10: if Δ T2 is greater than Δ T1, show that then the radiating effect of fan 70 to be measured is worse than standard fan 60, this fan to be measured 70 is defective.
Another preferred embodiments 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 (7)
1. fan test device, comprise that a wind scooper, that is provided with an air inlet and an air outlet is contained in second temperature measuring set that first temperature measuring set and that heater, in this wind scooper is posted by this heater is arranged at the air inlet place of this wind scooper, fan to be measured produces in this wind scooper from this air inlet and flow to the distinguished and admirable so that this heater is dispelled the heat of this air outlet, this first temperature measuring set is measured the surface temperature of this heater, and this second temperature measuring set is measured the environment temperature at this air inlet place.
2. fan test device as claimed in claim 1 is characterized in that: this wind-guiding covers in contiguous this air inlet 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: the inwall of this wind scooper is provided with and aligns the two relative guide rails that are provided with that this picks and places mouthful, so that put into or take out this fan to be measured.
4. fan test device as claimed in claim 1 is characterized in that: this first and second temperature measuring set all with thermopair as temperature-sensing element.
5. method of testing of utilizing fan test device as claimed in claim 1, this method of testing comprises the steps:
Open this heater;
One standard fan is installed in this wind scooper;
Open the standard fan generation and flow to the distinguished and admirable so that this heater is dispelled the heat of air outlet from air inlet;
This first and second temperature measuring set is measured the environment temperature Te at the air outlet place of the surface temperature Ta of heater and this wind scooper respectively, and calculates the difference DELTA T1 of this Ta and Te;
Take out standard fan and should be installed on this wind scooper by fan to be measured;
Open this fan generation to be measured and flow to the distinguished and admirable so that this heater is dispelled the heat of air outlet from air inlet;
This first temperature measuring set is measured the surface temperature Tb of heater, and calculates the difference DELTA T2 of this Tb and Te; And
Compare Δ T1 and Δ T2, less than Δ T1, then this fan to be measured is qualified as if Δ T2; If Δ T2 is greater than Δ T1, this fan to be measured is defective.
6. method of testing as claimed in claim 5 is characterized in that: in the test process, it is constant that the heating power of this heater keeps.
7. method of testing as claimed in claim 5, it is characterized in that: this wind-guiding covers in contiguous this air inlet place and is provided with one and picks and places mouth, this wind scooper inwall aligns this and picks and places mouth and be provided with two relative guide rails, when installation code fan or fan to be measured, standard fan or fan to be measured are slipped between this two guide rail from the mouth that picks and places of this wind scooper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104506413A CN103185671A (en) | 2011-12-29 | 2011-12-29 | Fan testing device and testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104506413A CN103185671A (en) | 2011-12-29 | 2011-12-29 | Fan testing device and testing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103185671A true CN103185671A (en) | 2013-07-03 |
Family
ID=48676959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104506413A Pending CN103185671A (en) | 2011-12-29 | 2011-12-29 | Fan testing device and testing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103185671A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887864A (en) * | 2019-11-18 | 2020-03-17 | 江苏鸿凌达科技有限公司 | Testing method of graphene heat-conducting film |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4905511A (en) * | 1987-02-05 | 1990-03-06 | Al-Ko Polar Gmbh Maschinenfabrik | Fan assembly and a method for checking the function thereof |
| US5050092A (en) * | 1990-02-26 | 1991-09-17 | Perry Robert E | Fan efficiency measuring apparatus |
| TW430061U (en) * | 2000-03-02 | 2001-04-11 | Lin Wei Keng | A multi-purpose wind tunnel measurative system |
| KR20030091845A (en) * | 2003-08-21 | 2003-12-03 | 홍성무 | Fan Trouble Detection Device Fixing Air Pipe & Air Duct |
| CN1470866A (en) * | 2002-07-23 | 2004-01-28 | 华为技术有限公司 | Heat measuring apparatus and method thereof |
-
2011
- 2011-12-29 CN CN2011104506413A patent/CN103185671A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4905511A (en) * | 1987-02-05 | 1990-03-06 | Al-Ko Polar Gmbh Maschinenfabrik | Fan assembly and a method for checking the function thereof |
| US5050092A (en) * | 1990-02-26 | 1991-09-17 | Perry Robert E | Fan efficiency measuring apparatus |
| TW430061U (en) * | 2000-03-02 | 2001-04-11 | Lin Wei Keng | A multi-purpose wind tunnel measurative system |
| CN1470866A (en) * | 2002-07-23 | 2004-01-28 | 华为技术有限公司 | Heat measuring apparatus and method thereof |
| KR20030091845A (en) * | 2003-08-21 | 2003-12-03 | 홍성무 | Fan Trouble Detection Device Fixing Air Pipe & Air Duct |
Non-Patent Citations (1)
| Title |
|---|
| SHEAM-CHYUN LIN，CHIEN-AN CHOU: "Blockage effect of axial-flow fans applied on heat sink assembly", 《APPLIED THERMAL ENGINEERING》, vol. 24, 31 December 2004 (2004-12-31) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887864A (en) * | 2019-11-18 | 2020-03-17 | 江苏鸿凌达科技有限公司 | Testing method of graphene heat-conducting film |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130703 |