CN1704612A - Humiture sensing fan speed control system - Google Patents
Humiture sensing fan speed control system Download PDFInfo
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- CN1704612A CN1704612A CN 200410045698 CN200410045698A CN1704612A CN 1704612 A CN1704612 A CN 1704612A CN 200410045698 CN200410045698 CN 200410045698 CN 200410045698 A CN200410045698 A CN 200410045698A CN 1704612 A CN1704612 A CN 1704612A
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- temperature
- humidity
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- fan motor
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Abstract
This invention discloses a fan speed controlling system of humiture sensing, which comprises a fan motor circuit, a humiture sensing unit and a controlling and processing unit, characterized in that the humiture sensing unit senses the temperature and humidity of the operational environment, sending a electric signal, then the controlling and processing unit will receive the signal and output a digital signal to the fan motor circuit to control the rotary speed of the fan motor.
Description
Technical field
The present invention mainly is about a kind of fan control speed system, especially about a kind of fan control speed system that has the temperature and humidity sensing concurrently.
Background technique
Existing electronics normally reaches the purpose of heat dissipation by fan, and the control of rotation speed of the fan mainly is to utilize a rotating-speed control circuit to control along with the temperature variation that is sensed, and existing rotating-speed control circuit is many to be driven in modes such as pulse wave width modulation signal, voltage signals.Yet, can be owing to do not add in such circuit for controlling speed of fan along with humidity changes and the circuit design of modulation rotating speed, thereby when above-mentioned electronics is in the environment of a low temperature, high humility, rotation speed of the fan can't promote because humidity is too high, be short-circuited or produce misoperation or cause the deficient of life-span and often allow electronics adhere to, even cause the breaking-up of electronics and fan because of aqueous vapor.In addition, under such environment, intrasystem iron assembly also can cause the pollution of system because of getting rusty easily.
Summary of the invention
Because the existing shortcoming that only limits to the circuit for controlling speed of fan of temperature sensing, the present invention proposes a kind of fan control speed system that has temperature and humidity concurrently.
One of the present invention purpose is to provide a kind of temperature of sense operation environment simultaneously and humidity and the fan motor revolution speed control system of modulation rotating speed, to guarantee that electrical assembly in the operating environment does not have aqueous vapor and adheres to.
For reaching above-mentioned purpose, the fan control speed system of temperature and humidity sensing of the present invention is characterized in comprising: a fan motor circuit; One temperature sensing component in order to the temperature of this fan control speed system of sensing, and is exported one first electronic signal; One humidity assembly in order to the humidity of this fan control speed system of sensing, and is exported one second electronic signal; And a controlled processing unit, in order to handle this first electronic signal and this second electronic signal and export a digital signal to this fan motor circuit to control the rotating speed of a fan motor.
Above-mentioned temperature and humidity sensing cell includes a humidity-dependent resistor and a thermistor at least, and this controlled processing unit is exported the rotating speed that a pulse width modulation signal is controlled fan motor according to the voltage level of the terminal voltage of this humidity-dependent resistor and this thermistor.
The fan motor control speed system of temperature and humidity sensing of the present invention is unlikely too high except the humidity that can guarantee system and electrical assembly caused damage, can possesses the characteristic of original temperature sensing control rotation speed of the fan again and come the effect of modulation rotating speed with Da Gaowen heat radiation or low temperature power saving.
For further specifying above-mentioned purpose of the present invention, structural feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is a Block Diagram, shows the fan control speed system of temperature and humidity sensing of the present invention.
Fig. 2 is a schematic representation, shows the temperature and humidity sensing cell of one embodiment of the invention.
Embodiment
See also Fig. 1, the fan control speed system 2 of temperature and humidity sensing of the present invention mainly comprises a temperature and humidity sensing cell 21, a controlled processing unit (Micro Control Unit; MCU) 22 and one fan motor circuit 23.
Temperature and humidity sensing cell 21 is used for temperature (temperature) T and humidity (humidity) H of sensing fan control speed system 2 operating environments, and export a temperature and humidity associated electrical signal S1 (perhaps a temperature correlation electronic signal and a humidity associated electrical signal) and give controlled processing unit 22,22 of controlled processing units electronic signal S1 are according to this exported a digital signal 221, for example are pulse wave width modulation (Pulse Width Modulation; PWM) signal is in order to the output speed v of drive fan motor circuit 231 and then control fan motor (not shown).
In addition, the fan control speed system 2 of temperature and humidity sensing of the present invention also can comprise a speed sensitive unit 24, output speed v in order to the sensing fan motor also exports a velocity correlation electronic signal S2 accordingly to controlled processing unit 22,22 of controlled processing units velocity correlation electronic signal S2 according to this compensate for the digital signal 221 of institute's desire output, are the expectation rotating speed with the output speed v that guarantees fan motor.
See also Fig. 2, among the embodiment, it for example is that thermistor 211, a humidity assembly 212 for example are humidity-dependent resistor, and several resistors 213 and 214 that temperature and humidity sensing cell 21 of the present invention mainly comprises a temperature sensing component.
In addition, temperature and humidity sensing cell 21 has 215 and two signal output terminals 216 of voltage input end, and voltage input end 215 is to be connected with a voltage source vin, and signal output terminal 216 is to be connected with controlled processing unit 22.
With regard to circuit characteristic, because the signal output terminal 216 of present embodiment is responsible for electronic signal S11 and the S12 that reception temperature sensing component and humidity assembly are exported respectively, at this is the terminal voltage of acquisition thermistor 211 and humidity assembly 212, the resistance value R1 that therefore can be by adjusting resistor 213 and the resistance value R2 of resistor 214 and adopt the thermistor 211 of suitable specification and the temperature and humidity sensing cell 21 that humidity assembly 212 meets demand.
According to temperature and humidity sensing cell 21 of the present invention, the fan control speed system 2 of temperature and humidity sensing can be controlled fan motor and export suitable rotating speed according to the temperature and the humidity of operating environment, can guarantee that on the one hand the electrical assembly in the operating environment can phenomenon overheated or that have aqueous vapor to adhere to not take place, and also can have the effect that reduces power consumption on the other hand.
For example, when the temperature of the operating environment of the fan control speed system 2 of temperature and humidity sensing in lower, the user can reduce the rotating speed of fan motor with saving electric power, and when the humidity of operating environment was higher, the rotating speed that also can improve fan motor removed moisture.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, under the situation that does not break away from spirit of the present invention, also can make the variation or the replacement of various equivalences, therefore, as long as in connotation scope of the present invention in the scope to the variation of the foregoing description, claims that modification all will drop on the application.
Claims (9)
1. the fan control speed system of a temperature and humidity sensing is characterized in that comprising:
One fan motor circuit;
One temperature sensing component in order to the temperature of this fan control speed system of sensing, and is exported one first electronic signal;
One humidity assembly in order to the humidity of this fan control speed system of sensing, and is exported one second electronic signal; And
One controlled processing unit, in order to handle this first electronic signal and this second electronic signal and export a digital signal to this fan motor circuit to control the rotating speed of a fan motor.
2. temperature and humidity sensing fan control speed system as claimed in claim 1 is characterized in that: also comprise a speed sensitive unit, in order to the rotating speed of this fan motor of sensing and export one the 3rd electronic signal, the 3rd electronic signal is handled by this controlled processing unit.
3. the fan control speed system of temperature and humidity sensing as claimed in claim 1 is characterized in that: this humidity assembly is a humidity-dependent resistor.
4. the fan control speed system of temperature and humidity sensing as claimed in claim 1 is characterized in that: this temperature sensing component is a thermistor.
5. the fan control speed system of temperature and humidity sensing as claimed in claim 1 is characterized in that: this digital signal is a pulse wave width modulation signal.
6. the fan control speed system of a temperature and humidity sensing is characterized in that comprising:
One fan motor circuit;
One temperature and humidity sensing cell in order to the temperature and the humidity of this fan control speed system of sensing, and is exported one first electronic signal; And
One controlled processing unit, handle this first electronic signal and export a digital signal to this fan motor circuit to control the rotating speed of a fan motor.
7. the fan control speed system of temperature and humidity sensing as claimed in claim 6 is characterized in that: also comprise a speed sensitive unit, in order to this fan motor rotating speed of sensing and export one second electronic signal, this second electronic signal is handled by this controlled processing unit.
8. the fan control speed system of temperature and humidity sensing as claimed in claim 6 is characterized in that: this temperature and humidity sensing cell comprises a thermistor, a humidity-dependent resistor and several resistors.
9. the fan control speed system of temperature and humidity sensing as claimed in claim 6 is characterized in that: this digital signal is a pulse wave width modulation signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410045698 CN1704612A (en) | 2004-05-28 | 2004-05-28 | Humiture sensing fan speed control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410045698 CN1704612A (en) | 2004-05-28 | 2004-05-28 | Humiture sensing fan speed control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1704612A true CN1704612A (en) | 2005-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410045698 Pending CN1704612A (en) | 2004-05-28 | 2004-05-28 | Humiture sensing fan speed control system |
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| CN (1) | CN1704612A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303661B (en) * | 2007-05-10 | 2010-06-02 | 鸿富锦精密工业（深圳）有限公司 | Air-dry apparatus and assembly |
| CN102200817A (en) * | 2010-03-26 | 2011-09-28 | 联想(北京)有限公司 | Computer and humidity control method |
| CN102374185A (en) * | 2010-08-16 | 2012-03-14 | 全汉企业股份有限公司 | Fan rotating speed control method |
| CN101813708B (en) * | 2009-02-24 | 2012-05-30 | 台达电子工业股份有限公司 | Wind speed measuring circuit capable of judging change opportunity of dustproof element and electronic device |
| CN102536868A (en) * | 2012-01-19 | 2012-07-04 | 贵州电网公司电网规划研究中心 | Intelligent electric fan controller based on single chip microcomputer |
| CN102979742A (en) * | 2012-12-13 | 2013-03-20 | 庄森安 | Auto-induction type fog exhaust fan |
| CN104747488A (en) * | 2015-03-31 | 2015-07-01 | 孙川 | Automatic speed regulation fan and automatic speed regulation method thereof |
| CN104763666A (en) * | 2015-03-31 | 2015-07-08 | 孙川 | Speed-regulating working method for automatic speed-regulating fan |
| CN104881096A (en) * | 2014-02-27 | 2015-09-02 | 鸿富锦精密工业(武汉)有限公司 | Heat dissipation system |
| CN107747557A (en) * | 2017-11-30 | 2018-03-02 | 广东美的厨房电器制造有限公司 | A kind of method and cooking equipment for controlling rotation speed of the fan |
-
2004
- 2004-05-28 CN CN 200410045698 patent/CN1704612A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303661B (en) * | 2007-05-10 | 2010-06-02 | 鸿富锦精密工业（深圳）有限公司 | Air-dry apparatus and assembly |
| CN101813708B (en) * | 2009-02-24 | 2012-05-30 | 台达电子工业股份有限公司 | Wind speed measuring circuit capable of judging change opportunity of dustproof element and electronic device |
| CN102200817A (en) * | 2010-03-26 | 2011-09-28 | 联想(北京)有限公司 | Computer and humidity control method |
| CN102374185A (en) * | 2010-08-16 | 2012-03-14 | 全汉企业股份有限公司 | Fan rotating speed control method |
| CN102536868A (en) * | 2012-01-19 | 2012-07-04 | 贵州电网公司电网规划研究中心 | Intelligent electric fan controller based on single chip microcomputer |
| CN102979742A (en) * | 2012-12-13 | 2013-03-20 | 庄森安 | Auto-induction type fog exhaust fan |
| CN104881096A (en) * | 2014-02-27 | 2015-09-02 | 鸿富锦精密工业(武汉)有限公司 | Heat dissipation system |
| CN104881096B (en) * | 2014-02-27 | 2018-06-01 | 鸿富锦精密工业(武汉)有限公司 | Cooling system |
| CN104747488A (en) * | 2015-03-31 | 2015-07-01 | 孙川 | Automatic speed regulation fan and automatic speed regulation method thereof |
| CN104763666A (en) * | 2015-03-31 | 2015-07-08 | 孙川 | Speed-regulating working method for automatic speed-regulating fan |
| CN107747557A (en) * | 2017-11-30 | 2018-03-02 | 广东美的厨房电器制造有限公司 | A kind of method and cooking equipment for controlling rotation speed of the fan |
| CN107747557B (en) * | 2017-11-30 | 2020-03-24 | 广东美的厨房电器制造有限公司 | Method for controlling rotating speed of fan and cooking equipment |
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Open date: 20051207 |