CN102878095A - Alarm circuit for failure of fan - Google Patents
Alarm circuit for failure of fan Download PDFInfo
- Publication number
- CN102878095A CN102878095A CN2011101969786A CN201110196978A CN102878095A CN 102878095 A CN102878095 A CN 102878095A CN 2011101969786 A CN2011101969786 A CN 2011101969786A CN 201110196978 A CN201110196978 A CN 201110196978A CN 102878095 A CN102878095 A CN 102878095A
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- China
- Prior art keywords
- resistance
- circuit
- fan
- diode
- electronic switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
An alarm circuit for failure of a fan comprises a fan controller, a first rectifier circuit, a switching circuit, a first indicating circuit, a second rectifier circuit, a comparator circuit and a second indicating circuit, wherein a rotating speed control pin of the fan controller is connected to the first indicating circuit through the first rectifier circuit and the switching circuit sequentially; and a rotating speed detection pin of the fan controller is connected to the second indicating circuit through the second rectifier circuit and the comparator circuit sequentially. The user can be informed of the failure of the fan through the first indicating circuit and the second indicating circuit of the alarm circuit for failure of the fan, so as to discover and clear the failure in time.
Description
Technical field
The present invention relates to a kind of fan failure warning circuit.
Background technique
Computer and server are standing puts fan in cabinet, to give each element such as central processor radiating in the cabinet, when breaking down, fan lost efficacy such as rotation speed of the fan detecting or control, but can't in time find, then can make in the cabinet since the untimely inside temperature that causes of heat radiation far above the operating temperature of element, thereby make the interior element job insecurity of cabinet even job failure occurs.
Summary of the invention
In view of above content, be necessary to provide a kind of and can in time notify user's fan failure warning circuit when fan breaks down.
A kind of fan failure warning circuit comprises:
One fan governor comprises rotating speed control pin and rotating speed detecting pin, and this rotating speed control pin is used for output one control signal, and this rotating speed detecting pin is used for output one detection signal;
One first rectification circuit is used for this control signal is converted to one first direct current signal;
One switching circuit is used for according to the corresponding switching signal of this first DC signal output;
One first indicating circuit is used for job failure whether occurring according to the fan that this switching signal indication is controlled by this fan governor;
One second rectification circuit is used for this detection signal is converted to one second direct current signal;
One comparison circuit is used for this second direct current signal is exported a comparison signal respectively with behind one first reference potential and one second reference potential; And
One second indicating circuit is used for indicating this fan job failure whether to occur according to this comparison signal.。
This fan failure warning circuit is notified the user by this first indicating circuit and the second indicating circuit when job failure appears in this fan, thereby the user can in time be found and fix a breakdown.
Description of drawings
Fig. 1 is the circuit diagram of the better embodiment of fan failure warning circuit of the present invention.
The primary component symbol description
| The fan |
100 |
| The |
20 |
| |
60 |
| The first indicating |
70 |
| The second rectification circuit | 30 |
| |
40 |
| The second indicating |
50 |
| Resistance | R1-R10 |
| Diode | D1-D3 |
| Buzzer | F1-F2 |
| Field effect transistor | Q1-Q2 |
| Integrated operational amplifier | U1-U2 |
| Electric capacity | C1-C4 |
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Please refer to Fig. 1, the better embodiment of fan failure warning circuit 100 of the present invention comprises that one is used for fan governor 10, one first rectification circuit 20, a switching circuit 60, one first indicating circuit 70, one second rectification circuit 30, a comparison circuit 40 and one second indicating circuit 50 of control one rotation speed of the fan.The rotating speed control pin 16 of this fan governor 10 connects this first indicating circuit 70 by this first rectification circuit 20 with this switching circuit 60 successively, and the rotating speed detecting pin 14 of this fan governor 10 connects this second indicating circuit 50 by this second rectification circuit 30, this comparison circuit 40 successively.
This fan governor 10 is used for controlling signal to this first rectification circuit 20 by these rotating speed control pin 16 outputs one, and detects pin 14 outputs one detection signal to this second rectification circuit 30 by this rotating speed.Working principle according to fan governor 10, when this fan work breaks down, the control signal of rotating speed control pin 16 outputs of this fan governor 10 is low level signal, and the detection signal of these rotating speed detecting pin 14 outputs is high level signal V1 or low level signal V2; When this fan normal operation, the control signal of these rotating speed control pin 16 outputs is pulse signal or high level signal, and the detection signal of these rotating speed detecting pin 14 outputs is pulse signal.
This first rectification circuit 20 is used for this control signal is converted to one first direct current signal.
This switching circuit 60 is used for according to the corresponding switching signal of this first DC signal output.
This first indicating circuit 70 is used for indicating this fan job failure whether to occur according to this switching signal.
This second rectification circuit 30 is used for this detection signal is converted to one second direct current signal V3, and wherein the magnitude of voltage of this second direct current signal V3 is greater than the magnitude of voltage of this low level signal V2 and less than the magnitude of voltage of this high level signal V1.
This comparison circuit 40 is used for this second direct current signal V3 is exported a comparison signal respectively with behind one first reference voltage V ref1 and the one second reference voltage V ref2.
This second indicating circuit 50 is used for indicating this fan job failure whether to occur according to this comparison signal.
This first rectification circuit 20 comprises resistance R 1, diode D1 and capacitor C 1, and an end of this resistance R 1 connects the rotating speed control pin 16 of this fan governor 10, and the other end connects the anode of this diode D1, and the negative electrode of this diode D1 is by capacitor C 1 ground connection.
This switching circuit 60 comprises triode Q1 and Q2 and resistance R 2 and R3, the base stage of this triode Q1 connects the negative electrode of this diode D1, the collector electrode of this triode Q1 links to each other with a direct current power supply VCC by this resistance R 2, the grounded-emitter connection of this triode Q1, the base stage of this triode Q2 connects the collector electrode of this triode Q1, the collector electrode of this triode Q2 connects this DC electrical source VCC, the grounded-emitter connection of this triode Q2 by this resistance R 3.
This first indicating module 70 comprises resistance R 4, diode D2, capacitor C 2 and buzzer F1, the negative electrode of this diode D2 connects this DC electrical source VCC, the anode of this diode D2 is by these capacitor C 2 ground connection, the collector electrode that also connects this triode Q2, the first end of this buzzer F1 links to each other with this DC electrical source VCC, and the second end connects the anode of this diode D2 by this resistance R 4.
This second rectification circuit 30 comprises resistance R 5 and capacitor C 3, and the first end of this resistance R 5 connects rotating speed detecting pin 14, the second ends of this fan governor 10 by capacitor C 3 ground connection.
This comparison circuit 40 comprises integrated operational amplifier U1 and U2 and resistance R 6-R9, the in-phase input end of this integrated operational amplifier U1 links to each other with this DC electrical source VCC by resistance R 6, also by resistance R 7 ground connection, the inverting input of this integrated operational amplifier U1 and the in-phase input end of this integrated operational amplifier U2 all connect the second end of this resistance R 5, and the output terminal of this integrated operational amplifier U1 and U2 all links to each other with this second indicating circuit 50.
This second indicating circuit 50 comprises resistance R 10, diode D3, capacitor C 4 and buzzer F2, the negative electrode of this diode D3 links to each other with this DC electrical source VCC, the anode of this diode D3 is by capacitor C 4 ground connection, the output terminal that also connects this integrated operational amplifier U1 and U2, the first end of this buzzer F2 links to each other with this DC electrical source VCC, and the second end connects the anode of this diode D3 by this resistance R 10.
The below describes the working principle of better embodiment of the present invention:
For the first indicating circuit 70: when fan works, suppose that the control signal that this rotating speed control pin 16 is exported is a pulse signal, at this moment, this pulse signal is converted into the base stage that this first direct current signal inputs to this triode Q1 by this first current rectifying and wave filtering circuit 20, so that this triode Q1 conducting, then so that the base stage of this triode Q2 by drop-down ground connection, then this triode Q2 cut-off, so that the second end of this buzzer F1 is pulled to this DC electrical source VCC, at this moment, this buzzer F1 does not pipe.
When fan worked, when supposing that control signal that this rotating speed control pin 16 is exported is a high level signal, this high level signal inputed to the base stage of this triode Q1 by this first current rectifying and wave filtering circuit 20, and in like manner, this buzzer F1 does not pipe.
When fan breaks down, the control signal that this rotating speed control pin 16 is exported is a low level signal, this low level signal inputs to the base stage of this triode Q1 by this first finishing circuit 20, so that this triode Q1 cut-off, then so that the base stage of this triode Q2 is pulled to this DC electrical source VCC, then this triode Q2 conducting is so that the second end of this buzzer F1 is by drop-down ground connection, at this moment, this buzzer F1 pipes to notify this fan of user to break down.
For the second indicating circuit 50: when fan works, the detection signal that this rotating speed detecting pin 14 is exported is a pulse signal, this pulse signal is converted into this second direct current signal V3 by this second rectification circuit 30 and inputs to the inverting input of this integrated operational amplifier U1 and the in-phase input end of this integrated operational amplifier U2, at this moment, the in-phase input end voltage of this integrated operational amplifier U1 is the voltage at these resistance R 7 two ends, be this first reference voltage V ref1, its magnitude of voltage can obtain by the resistance of regulating resistance R6 and R7, in the present embodiment, the magnitude of voltage of this first reference voltage V ref1 is set as the magnitude of voltage that equals this high level signal V1, again since the magnitude of voltage of this second direct current signal V3 less than the magnitude of voltage of this high level signal V1, then the magnitude of voltage of this second direct current signal V3 is less than this first reference voltage V ref1, namely the voltage of the inverting input of this integrated operational amplifier U1 is less than the voltage of in-phase input end, so that the output terminal of this integrated operational amplifier U1 is high level.Simultaneously, the voltage of the inverting input of this integrated operational amplifier U2 is the voltage at these resistance R 9 two ends, i.e. this second reference voltage V ref2, its magnitude of voltage can obtain by the resistance of regulating resistance R8 and R9, in the present embodiment, the voltage of this second reference voltage V ref2 is set as the magnitude of voltage that equals this low level signal V2, again since the magnitude of voltage of the second direct current signal V3 greater than the magnitude of voltage of low level signal V2, then the magnitude of voltage of this second direct current signal V3 is greater than this second reference voltage V ref2, namely the voltage of the in-phase input end of this integrated operational amplifier U2 is greater than the voltage of inverting input, so that the output terminal of this integrated operational amplifier U2 is high level, therefore, the voltage that the second end of this buzzer F2 receives is high level, and at this moment, this buzzer F2 does not pipe.
When fan breaks down, suppose that the detection signal that this rotating speed detecting pin 14 is exported is this high level signal V1, at this moment, this high level signal V1 is by the inverting input of this second rectification circuit 30 this integrated operational amplifier of input U1 and the in-phase input end of this integrated operational amplifier U2, at this moment, the magnitude of voltage of this high level signal V2 is greater than this first and second reference voltage V ref1 and Vref2, namely the voltage of the inverting input of this integrated operational amplifier U1 is greater than the voltage of in-phase input end, the voltage of the in-phase input end of this integrated operational amplifier U2 is greater than the voltage of inverting input, then the voltage exported of the output terminal of this integrated operational amplifier U1 is low level, the voltage that the output terminal of this integrated operational amplifier U2 is exported is high level, so that the voltage that the second end of this buzzer F2 receives is low level, then so that this buzzer F2 pipes to notify this fan of user job failure to occur.
When fan breaks down, suppose that the detection signal that this rotating speed detecting pin 14 is exported is this low level signal V2, at this moment, this low level signal V2 is by the inverting input of this second rectification circuit 30 this integrated operational amplifier of input U1 and the in-phase input end of this integrated operational amplifier U2, at this moment, the magnitude of voltage of this low level signal V2 is less than this first and second reference voltage V ref1 and Vref2, namely the voltage of the in-phase input end of this integrated operational amplifier U1 is greater than the voltage of inverting input, the voltage of the inverting input of this integrated operational amplifier U2 is greater than the voltage of in-phase input end, then the output terminal of this integrated operational amplifier U1 is high level, the output terminal of this integrated operational amplifier U2 is low level, so that the voltage that the second end of this buzzer F2 receives is low level, then so that this buzzer F2 pipes to notify this fan of user job failure to occur.
From the above, in the present embodiment, triode Q1 and Q2 all play the electronics switch, therefore, in other mode of execution, triode Q1 and Q2 also can adopt the transistor of other type to replace, even other electrical assembly or chip with electronic switch function all can.
This fan failure warning circuit 100 is notified the user by this first indicating circuit 70 and the second indicating circuit 50 when job failure appears in this fan, thereby the user can in time be found and fix a breakdown.
The above only for the better embodiment of the present invention, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses, and the variation that can expect easily or substitute all is encompassed within protection scope of the present invention.
Claims (9)
1. fan failure warning circuit comprises:
One fan governor comprises rotating speed control pin and rotating speed detecting pin, and this rotating speed control pin is used for output one control signal, and this rotating speed detecting pin is used for output one detection signal;
One first rectification circuit is used for this control signal is converted to one first direct current signal;
One switching circuit is used for according to the corresponding switching signal of this first DC signal output;
One first indicating circuit is used for job failure whether occurring according to the fan that this switching signal indication is controlled by this fan governor;
One second rectification circuit is used for this detection signal is converted to one second direct current signal;
One comparison circuit is used for this second direct current signal is exported a comparison signal respectively with behind one first reference potential and one second reference potential; And
One second indicating circuit is used for indicating this fan job failure whether to occur according to this comparison signal.
2. fan failure warning circuit as claimed in claim 1, it is characterized in that: this first rectification circuit comprises the first resistance, the first diode and the first electric capacity, one end of this first resistance connects the rotating speed control pin of this fan governor, the other end connects the anode of this first diode, and the negative electrode of this first diode is by this first capacity earth.
3. fan failure warning circuit as claimed in claim 2, it is characterized in that: this switching circuit comprises the first electronic switch, the second electronic switch, the second resistance and the 3rd resistance, the first end of this first electronic switch connects the negative electrode of this diode, the second end of this first electronic switch links to each other with a direct current power supply by this second resistance, the 3rd end ground connection of this first electronic switch, the first end of this second electronic switch connects the second end of this first electronic switch, the second end of this second electronic switch connects this DC electrical source by the 3rd resistance, the 3rd end ground connection of this second electronic switch.
4. fan failure warning circuit as claimed in claim 3, it is characterized in that: this first electronic switch is triode, the first to the 3rd end of this first electronic switch is respectively base stage, the collector and emitter of triode.
5. fan failure warning circuit as claimed in claim 3, it is characterized in that: this second electronic switch is triode, the first to the 3rd end of this second electronic switch is respectively base stage, the collector and emitter of triode.
6. fan failure warning circuit as claimed in claim 3, it is characterized in that: this first indicating module comprises the 4th resistance, the second diode, the second electric capacity and the first buzzer, the negative electrode of this second diode connects this DC electrical source, the anode of this second diode is by this second capacity earth, the second end that also connects this second electronic switch, the first end of this first buzzer links to each other with this DC electrical source, and the second end connects the anode of this second diode by the 4th resistance.
7. fan failure warning circuit as claimed in claim 6, it is characterized in that: this second rectification circuit comprises the 5th resistance and the 3rd electric capacity, the first end of the 5th resistance connects the rotating speed detecting pin of this fan governor, and the second end is by the 3rd capacity earth.
8. fan failure warning circuit as claimed in claim 7, it is characterized in that: this comparison circuit comprises the first and second integrated operational amplifiers and the 6th to the 9th resistance, the in-phase end of this first integrated operational amplifier links to each other with this DC electrical source by the 6th resistance, also by the 7th resistance eutral grounding, the end of oppisite phase of this first integrated operational amplifier and the in-phase end that is connected the second integrated operational amplifier all connect the second end of the 5th resistance, and the output terminal of this first and second integrated operational amplifier all links to each other with this second indicating circuit.
9. fan failure warning circuit as claimed in claim 8, it is characterized in that: this second indicating circuit comprises the tenth resistance, the 3rd diode, the 4th electric capacity and the second buzzer, the negative electrode of the 3rd diode links to each other with this DC electrical source, the anode of the 3rd diode is by the 4th capacity earth, the output terminal that also connects this first and second integrated operational amplifier, the first end of this second buzzer links to each other with this DC electrical source, and the second end connects the anode of the 3rd diode by the tenth resistance.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101969786A CN102878095A (en) | 2011-07-14 | 2011-07-14 | Alarm circuit for failure of fan |
| TW100125540A TW201303576A (en) | 2011-07-14 | 2011-07-19 | Alarm circuit of fan fault |
| US13/286,785 US20130017097A1 (en) | 2011-07-14 | 2011-11-01 | Alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101969786A CN102878095A (en) | 2011-07-14 | 2011-07-14 | Alarm circuit for failure of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102878095A true CN102878095A (en) | 2013-01-16 |
Family
ID=47479554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101969786A Pending CN102878095A (en) | 2011-07-14 | 2011-07-14 | Alarm circuit for failure of fan |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20130017097A1 (en) |
| CN (1) | CN102878095A (en) |
| TW (1) | TW201303576A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233904A (en) * | 2013-05-13 | 2013-08-07 | 株洲南车时代电气股份有限公司 | Fan state feedback control device and method thereof |
| CN108644144A (en) * | 2018-04-04 | 2018-10-12 | 重庆金山医疗器械有限公司 | A kind of DC fan failure monitoring system |
| CN114076118A (en) * | 2020-08-13 | 2022-02-22 | 纬颖科技服务股份有限公司 | Communication method of fan and related fan system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133756A (en) * | 2013-05-02 | 2014-11-05 | 鸿富锦精密电子(天津)有限公司 | Fan installation detection circuit |
| TWM461055U (en) * | 2013-05-07 | 2013-09-01 | Asia Vital Components Co Ltd | Detection circuit for detecting the abnormality of dc fan motor coil |
| CN107451499A (en) * | 2016-06-01 | 2017-12-08 | 曾平桂 | Bar code scanning method and device |
| CN110596448A (en) * | 2019-09-25 | 2019-12-20 | 南京亚派科技股份有限公司 | Simple detection circuit for IO port drive level undervoltage |
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| US6147615A (en) * | 1999-08-26 | 2000-11-14 | Perfect Three Manufacturing Co. | Speed detecting device for a direct current motor, and electric fan with a motor speed detecting device |
| US6163266A (en) * | 1998-12-08 | 2000-12-19 | Lucent Technologies Inc. | Fan operation detection circuit for a DC fan and method of operation thereof |
| US6255860B1 (en) * | 1998-07-16 | 2001-07-03 | Lucent Technologies Inc. | Pulse detection circuit, method of operation thereof and fan assembly test circuit employing the same |
| US20040008118A1 (en) * | 2002-07-09 | 2004-01-15 | Shou-Te Yu | Dc motor rotation speed alarm circuitry |
| CN101221526A (en) * | 2007-01-08 | 2008-07-16 | 鸿富锦精密工业（深圳）有限公司 | Fan failure warning circuit |
| CN201198838Y (en) * | 2008-04-07 | 2009-02-25 | 深圳华北工控股份有限公司 | Fan speed-regulating alarming device |
| CN101435844A (en) * | 2008-11-14 | 2009-05-20 | 艾默生网络能源有限公司 | Fan failure detection circuit and detection method thereof |
-
2011
- 2011-07-14 CN CN2011101969786A patent/CN102878095A/en active Pending
- 2011-07-19 TW TW100125540A patent/TW201303576A/en unknown
- 2011-11-01 US US13/286,785 patent/US20130017097A1/en not_active Abandoned
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6255860B1 (en) * | 1998-07-16 | 2001-07-03 | Lucent Technologies Inc. | Pulse detection circuit, method of operation thereof and fan assembly test circuit employing the same |
| US6163266A (en) * | 1998-12-08 | 2000-12-19 | Lucent Technologies Inc. | Fan operation detection circuit for a DC fan and method of operation thereof |
| US6147615A (en) * | 1999-08-26 | 2000-11-14 | Perfect Three Manufacturing Co. | Speed detecting device for a direct current motor, and electric fan with a motor speed detecting device |
| US20040008118A1 (en) * | 2002-07-09 | 2004-01-15 | Shou-Te Yu | Dc motor rotation speed alarm circuitry |
| CN101221526A (en) * | 2007-01-08 | 2008-07-16 | 鸿富锦精密工业（深圳）有限公司 | Fan failure warning circuit |
| CN201198838Y (en) * | 2008-04-07 | 2009-02-25 | 深圳华北工控股份有限公司 | Fan speed-regulating alarming device |
| CN101435844A (en) * | 2008-11-14 | 2009-05-20 | 艾默生网络能源有限公司 | Fan failure detection circuit and detection method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233904A (en) * | 2013-05-13 | 2013-08-07 | 株洲南车时代电气股份有限公司 | Fan state feedback control device and method thereof |
| CN103233904B (en) * | 2013-05-13 | 2015-12-02 | 株洲南车时代电气股份有限公司 | A kind of fan-status feed back control system and method thereof |
| CN108644144A (en) * | 2018-04-04 | 2018-10-12 | 重庆金山医疗器械有限公司 | A kind of DC fan failure monitoring system |
| CN114076118A (en) * | 2020-08-13 | 2022-02-22 | 纬颖科技服务股份有限公司 | Communication method of fan and related fan system |
| CN114076118B (en) * | 2020-08-13 | 2024-05-31 | 纬颖科技服务股份有限公司 | Communication method of fan and related fan system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201303576A (en) | 2013-01-16 |
| US20130017097A1 (en) | 2013-01-17 |
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Application publication date: 20130116 |