TWI401364B - Cooling fan with failure detecting function - Google Patents
Cooling fan with failure detecting function Download PDFInfo
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- TWI401364B TWI401364B TW96125554A TW96125554A TWI401364B TW I401364 B TWI401364 B TW I401364B TW 96125554 A TW96125554 A TW 96125554A TW 96125554 A TW96125554 A TW 96125554A TW I401364 B TWI401364 B TW I401364B
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- fan
- fan motor
- emitting diode
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- Control Of Positive-Displacement Air Blowers (AREA)
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Description
本發明係關於一種風扇，尤指一種具故障偵測功能之風扇。 The invention relates to a fan, in particular to a fan with a fault detection function.
習知二線式風扇只包括一電源線及一接地線，當電源接通時風扇便開始旋轉，但是當風扇因為故障停止旋轉時，使用者並不能即時得知風扇已停止旋轉。 The conventional two-wire fan only includes a power cord and a grounding wire. When the power is turned on, the fan starts to rotate. However, when the fan stops rotating due to a fault, the user cannot immediately know that the fan has stopped rotating.
習知二線式風扇在使用時由於不能偵測其是否發生故障，從而可能進一步導致系統故障，影響系統之正常工作。 Conventional two-wire fans cannot detect whether they have failed during use, which may further cause system failure and affect the normal operation of the system.
因是，實有必要對習知之風扇進行改良，以消除上述缺失。 Therefore, it is necessary to improve the conventional fan to eliminate the above deficiency.
鑒於以上內容，有必要提供一種具故障偵測功能之風扇。 In view of the above, it is necessary to provide a fan with a fault detection function.
一種具故障偵測功能之風扇，包括一電源輸入端、一限流電阻、一發光二極體及一風扇馬達，該電源輸入端與一風扇電源連接，用於提供一直流電壓，該電源輸入端還透過該限流電阻與該發光二極體之陽極連接，該發光二極體之陰極與該風扇馬達之一端連接，該風扇馬達之另一端接地，該發光二極體用於顯示該風扇馬達的運轉狀態，當該風扇電源啟動及該風扇馬達運轉正常時，該風扇電源提供的電壓通過該限流電阻使該發光二極體導 通，該發光二極體發光顯示該風扇馬達工作，當該風扇電源啟動而該風扇馬達停止運轉時，此時該風扇馬達相當於斷路，該發光二極體不發光以顯示該風扇馬達停止工作。 A fan with fault detection function includes a power input terminal, a current limiting resistor, a light emitting diode and a fan motor, and the power input terminal is connected to a fan power source for providing a DC voltage, the power input The terminal is further connected to the anode of the light emitting diode through the current limiting resistor, the cathode of the light emitting diode is connected to one end of the fan motor, the other end of the fan motor is grounded, and the light emitting diode is used for displaying the fan The operating state of the motor, when the fan power is turned on and the fan motor is operating normally, the voltage provided by the fan power source causes the light emitting diode to be guided through the current limiting resistor The light emitting diode displays the operation of the fan motor. When the fan power is turned on and the fan motor stops running, the fan motor is equivalent to an open circuit, and the light emitting diode does not emit light to indicate that the fan motor stops working. .
相較習知技術，該具故障偵測功能之風扇工作正常時，該發光二極體發光顯示；該具故障偵測功能之風扇工作不正常時，該發光二極體不發光，使用者可根據此提示更換風扇或者進行其他操作，以免影響系統之正常運行，而且該風扇之結構簡單。 Compared with the prior art, when the fan with the fault detection function works normally, the LED emits light; when the fan with the fault detection function is not working properly, the LED does not emit light, and the user can According to this prompt, replace the fan or perform other operations, so as not to affect the normal operation of the system, and the structure of the fan is simple.
請參閱圖1，本發明具故障偵測功能之風扇之較佳實施方式包括一電源輸入端Vcc、一限流電阻R1、一發光二極體(light emitting diode，LED)D1、一風扇馬達S1、一反向器U1及一蜂鳴器U2，本實施方式以一二線式風扇為例進行說明。 Referring to FIG. 1 , a preferred embodiment of the fan with fault detection function includes a power input terminal Vcc , a current limiting resistor R1 , a light emitting diode (LED) D1 , and a fan motor S1 . An inverter U1 and a buzzer U2 are described in the embodiment as a two-wire fan.
該電源輸入端Vcc透過一電源線與一風扇電源連接，用於提供一直流電壓。該電源輸入端Vcc透過該限流電阻R1與該發光二極體D1之陽極連接，該發光二極體D1之陰極與該風扇馬達S1之一端連接，該風扇馬達S1之另一端透過一接地線接地。 The power input terminal Vcc is connected to a fan power supply through a power line for providing a DC voltage. The power input terminal Vcc is connected to the anode of the LED D1 through the current limiting resistor R1. The cathode of the LED D1 is connected to one end of the fan motor S1, and the other end of the fan motor S1 is transmitted through a ground line. Ground.
該發光二極體D1之陰極與該反向器U1之輸入端連接。該蜂鳴器U2之一端與該電源輸入端Vcc連接，該蜂鳴器U2之另一端與該反向器U1之輸出端連接。 The cathode of the light-emitting diode D1 is connected to the input end of the inverter U1. One end of the buzzer U2 is connected to the power input terminal Vcc, and the other end of the buzzer U2 is connected to the output end of the inverter U1.
當該風扇電源啟動時，若該風扇工作正常(即該風扇馬 達S1運轉正常)，該電源輸入端Vcc提供之直流電壓透過該限流電阻R1使該發光二極體D1導通，該發光二極體D1發光顯示。此時該反向器U1之輸入端為低電平(該風扇馬達S1之工作電壓非常低)，所以該反向器U1之輸出端為高電平。該蜂鳴器U2之一端與該電源輸入端Vcc連接為高電平，該蜂鳴器U2之另一端與該反向器U1之輸出端連接也為高電平，此時該蜂鳴器U2由於沒有電壓差而不發聲。 When the fan power is turned on, if the fan is working properly (that is, the fan horse When the S1 is operating normally, the DC voltage supplied from the power input terminal Vcc is turned on by the current limiting resistor R1, and the LED D1 is illuminated. At this time, the input end of the inverter U1 is at a low level (the operating voltage of the fan motor S1 is very low), so the output end of the inverter U1 is at a high level. One end of the buzzer U2 is connected to the power input terminal Vcc to a high level, and the other end of the buzzer U2 is also connected to the output end of the inverter U1, and the buzzer U2 is at this time. Since there is no voltage difference, it does not sound.
當該風扇電源啟動時，若該風扇工作不正常(即該風扇馬達S1停止運轉)，此時該風扇馬達S1相當於斷路，該發光二極體D1不發光。此時該反向器U1之輸入端為高電平，所以該反向器U1之輸出端為低電平。該蜂鳴器U2之一端與該電源輸入端Vcc連接為高電平，該蜂鳴器U2之另一端與該反向器U1之輸出端連接為低電平，此時該蜂鳴器U2由於存在電壓差而發聲，提示使用者注意。 When the fan power is turned on, if the fan is not working properly (that is, the fan motor S1 is stopped), the fan motor S1 is equivalent to an open circuit at this time, and the light-emitting diode D1 does not emit light. At this time, the input terminal of the inverter U1 is at a high level, so the output terminal of the inverter U1 is at a low level. One end of the buzzer U2 is connected to the power input terminal Vcc to a high level, and the other end of the buzzer U2 is connected to the output end of the inverter U1 to a low level, and the buzzer U2 is There is a voltage difference and sounds, prompting the user to pay attention.
本發明具故障偵測功能之風扇工作時，若該發光二極體D1發光顯示，該蜂鳴器U2不發聲，則表示此時為工作正常；若該發光二極體D1不發光顯示，該蜂鳴器U2發聲，則表示此時為工作不正常，使用者可根據此提示更換風扇或者進行其他操作，以免影響系統之正常運行。 When the fan with the fault detection function is in operation, if the light emitting diode D1 emits light, the buzzer U2 does not sound, indicating that the operation is normal at this time; if the light emitting diode D1 does not emit light, the When the buzzer U2 sounds, it means that the work is not working properly. The user can replace the fan or perform other operations according to this prompt, so as not to affect the normal operation of the system.
綜上所述，本發明符合發明專利要件，爰依法提出專利申請。惟，以上所述者僅為本發明之較佳實施方式，舉凡熟悉本案技藝之人士，在爰依本發明精神所作之等效修飾或變化，皆應涵蓋於以下之申請專利範圍內。 In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.
Vcc‧‧‧電源輸入端 Vcc‧‧‧ power input
R1‧‧‧限流電阻 R1‧‧‧ current limiting resistor
D1‧‧‧發光二極體 D1‧‧‧Lighting diode
S1‧‧‧風扇馬達 S1‧‧‧Fan motor
U1‧‧‧反向器 U1‧‧‧ reverser
U2‧‧‧蜂鳴器 U2‧‧‧ buzzer
圖1係本發明具故障偵測功能之風扇之較佳實施方式之電路圖。 1 is a circuit diagram of a preferred embodiment of a fan with a fault detection function of the present invention.
Vcc‧‧‧電源輸入端 Vcc‧‧‧ power input
R1‧‧‧限流電阻 R1‧‧‧ current limiting resistor
D1‧‧‧發光二極體 D1‧‧‧Lighting diode
S1‧‧‧風扇馬達 S1‧‧‧Fan motor
U1‧‧‧反向器 U1‧‧‧ reverser
U2‧‧‧蜂鳴器 U2‧‧‧ buzzer
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW96125554A TWI401364B (en) | 2007-07-13 | 2007-07-13 | Cooling fan with failure detecting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW96125554A TWI401364B (en) | 2007-07-13 | 2007-07-13 | Cooling fan with failure detecting function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200902852A TW200902852A (en) | 2009-01-16 |
| TWI401364B true TWI401364B (en) | 2013-07-11 |
Family
ID=44721961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW96125554A TWI401364B (en) | 2007-07-13 | 2007-07-13 | Cooling fan with failure detecting function |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI401364B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155398A (en) * | 2011-03-22 | 2011-08-17 | 艾默生网络能源有限公司 | Fan failure detection circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262238A (en) * | 1978-07-18 | 1981-04-14 | Robert Bosch Gmbh | Controlled current supply circuit from a battery to a motor |
| CN2295862Y (en) * | 1996-10-17 | 1998-10-28 | 新巨企业股份有限公司 | Fault inspecting apparatus for comuter fan |
| TWM254822U (en) * | 2004-03-12 | 2005-01-01 | Hon Hai Prec Ind Co Ltd | Sensing circuit for fan motor |
| CN2690894Y (en) * | 2004-03-09 | 2005-04-06 | 鸿富锦精密工业（深圳）有限公司 | Fan motor detection circuit |
| TWM263686U (en) * | 2004-03-19 | 2005-05-01 | Jin-Ping Wu | Variable speed control circuit of crystal fan |
-
2007
- 2007-07-13 TW TW96125554A patent/TWI401364B/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262238A (en) * | 1978-07-18 | 1981-04-14 | Robert Bosch Gmbh | Controlled current supply circuit from a battery to a motor |
| CN2295862Y (en) * | 1996-10-17 | 1998-10-28 | 新巨企业股份有限公司 | Fault inspecting apparatus for comuter fan |
| CN2690894Y (en) * | 2004-03-09 | 2005-04-06 | 鸿富锦精密工业（深圳）有限公司 | Fan motor detection circuit |
| TWM254822U (en) * | 2004-03-12 | 2005-01-01 | Hon Hai Prec Ind Co Ltd | Sensing circuit for fan motor |
| TWM263686U (en) * | 2004-03-19 | 2005-05-01 | Jin-Ping Wu | Variable speed control circuit of crystal fan |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200902852A (en) | 2009-01-16 |
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