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TWI240156B - Temperature and humidity sensing speed control system for fan - Google Patents

Temperature and humidity sensing speed control system for fan Download PDF

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Publication number
TWI240156B
TWI240156B TW093113916A TW93113916A TWI240156B TW I240156 B TWI240156 B TW I240156B TW 093113916 A TW093113916 A TW 093113916A TW 93113916 A TW93113916 A TW 93113916A TW I240156 B TWI240156 B TW I240156B
Authority
TW
Taiwan
Prior art keywords
temperature
humidity
fan
control system
humidity sensing
Prior art date
Application number
TW093113916A
Other languages
Chinese (zh)
Other versions
TW200538898A (en
Inventor
Sans Chang
Magellan Chiu
Long Chiu
Ming-Shi Tsai
Original Assignee
Delta Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Delta Electronics Inc filed Critical Delta Electronics Inc
Priority to TW093113916A priority Critical patent/TWI240156B/en
Priority to US11/075,947 priority patent/US20050257537A1/en
Application granted granted Critical
Publication of TWI240156B publication Critical patent/TWI240156B/en
Publication of TW200538898A publication Critical patent/TW200538898A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • F25B2600/112—Fan speed control of evaporator fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/02—Humidity
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

A temperature and humidity sensing speed control system for fan is disclosed. The system includes a fan motor circuit, a micro control unit, and a temperature and humidity sensing unit. The temperature and humidity sensing unit senses the temperature and humidity of the surroundings where the system is operated and outputs a electronic signal, while the micro control unit processes the electronic signal and outputs a digital signal to the fan motor circuit to control the speed of the fan motor.

Description

1240156 五、發明說明α) =速“，尤其是關於 一種風 扇控速 【發明所屬之技術領域 本發明主要係關於 種兼具溫濕度感測之風 會利用 逮的調 溫度變 寬度調 風扇轉 的電路 度的環 往讓電 造成壽 ’在這 而造成 係藉由風 變控制主 化來進行 變信號、 速控制電 設計，因 境時，風 子系統因 命的短少 樣的環境 糸統的污 扇來幫 要是利 控制， 電壓信 路中並 而當上 扇轉速 水氣附 ，甚而 下，系 染0 【先前技術 現有電 散逸之目的 制電路隨著 轉速控制電 動。然而， 者濕度變化 處於一個低 漁度過高而 路、或產生 統及風扇的 元件也會因 子系統通常 ，而風扇轉 所感測到的 路多以脈波 由於這樣的 而調變轉速 溫度、高濕 提升，而往 誤動作、或 毀壞。此外 為容易生鏽 :散達到熱 用一轉迷控 這樣習知的 號等方式驅 未加入a , 八Τ隨 述電子系統 亚不會因為 著而發生翅 造成電子系 統内的鐵劁 【發明内容】 失，：：於現有僅限於溫度感 :。本發明提出-種兼具溫度 測之風扇轉速控制電路的 及濕度感測的風扇控速系缺 一種可同時感測操作環境 馬達轉速控制系統，以二之 Λ石崔保 有水氣附著。 ' 本發明之一曰/^ i m 目的在於提供 /皿又’…、度而調變轎祙夕151戶 操作環境中的電；轉Ϊ之風扇 7电千兀件的不會1240156 V. Description of the invention α) = speed ", especially about a fan speed control [Technical field to which the invention belongs The present invention is mainly about a type of wind with temperature and humidity sensing The circuit's loop lets electricity cause longevity. Here, the variable signal and speed control power design are implemented through the wind power control main. When the environment is short, the wind subsystem is short of life and the environment is a dirty fan. To help control, in the voltage signal path and when the fan speed is attached to the water vapor, and even down, the system is dyed. [Prior art, the purpose of the existing electrical dissipation circuit is to control the motor with the speed control. However, the humidity change is at a low level. If the fishing rate is too high, the road, or the components of the fan and the fan will also cause the system to be normal, and the roads sensed by the fan are mostly pulsed to adjust the speed, temperature, and humidity to increase due to this. Destroyed. In addition, it is easy to rust: If the heat is lost, the conventional number such as one turn and the control is used to drive it without adding a. The occurrence of fins caused iron crickets in the electronic system. [Summary of the Invention]: The current temperature is limited to the current temperature: The present invention proposes a fan speed control system that has both temperature measurement fan speed control circuit and humidity detection. There is a lack of a motor speed control system that can simultaneously sense the operating environment, so that water and gas are attached to the two Λ stone Cui. 'One of the present invention / ^ im The purpose is to provide / ware and' ... to adjust the car 祙 xi 151 The electricity in the user's operating environment;

第7頁 124〇156 五 發明說明 ⑵ 依 本 含—風屬 處理單元 並輪出一 此一電子 制風扇馬 一實 濕敏電阻 元依據該 輪出一脈 本發 系統的濕 保有原來 溫散熱或 發明一 馬達電 该溫 電子訊 訊號並 達的轉 施f列中 器、及 濕敏電 衝寬度 明的溫 度不致 溫度感 低溫省 實施樣 路、一 濕度感 號，接 輸出一 速。 ，本發 一熱敏 阻器及 調變訊 濕度感 於過高 測控制 電的效 則之風扇控速系統包 測單元及-處理控制控制 早兀感測操作環n显度及渴度 f ’處理控制該控制處理單元接收 文位訊號至該風扇馬達電路來以控 明之溫濕度感測單元至少包含有一 電阻器，而處理控制該控制處理單 忒熱敏電阻器之端電壓的電壓位準 號來控制風扇馬達的轉速。 測之風扇馬達控速系統除了可確保 而對電子元件造成損害之外，又可 風扇轉速的特性來調變轉速以達高 果。 ° 【實施方式】 請參見圖1，本發明之溫濕度感測之風扇控速系統2主 要包含一溫濕度感測單元2 1、一處理控制控制處理單元 (Micro Control Uni t ; MCU) 22 及一風扇馬達電路23。 溫濕度感測單元2 1用來感測風扇控速系統2操作環境 的溫度（temperature)T及濕度（humidity)H，並輸出一溫 濕度相關電子訊號S1 (或者一溫度相關電子訊號及一濕度相 關電子訊號）給處理控制控制處理單元22，處理控制控制 處理單元2 2則依此電子訊號S1輸出一數位訊號2 2 1例如是脈 Η 第8頁Page 7124〇156 Description of the invention ⑵ According to the book, the wind belongs to the processing unit and turns out an electronic fan horse a real humidity resistance element according to the rotation of the pulse. The system's humidity keeps the original temperature or heat dissipation. Invented a motor to transmit the temperature electronic signal and achieve the F column middle device, and the temperature of the humidity sensitive electric impulse has a wide temperature so that the temperature is not low. The sample path and a humidity sensor are saved, and the output is a speed. In this case, a thermistor and a fan speed control system package that detects the effects of high humidity on the control signal and the test unit and the processing control control early detection of the operating ring n's degree and thirst f ' Process control The control processing unit receives a signal from the fan motor circuit to control the temperature and humidity sensing unit at least including a resistor, and processes and controls the voltage level number of the terminal voltage of the control process single thermistor. To control the speed of the fan motor. In addition to ensuring that the fan motor speed control system can cause damage to electronic components, the speed of the fan can be used to adjust the speed to achieve high results. [Embodiment] Please refer to FIG. 1. The fan speed control system 2 for temperature and humidity sensing according to the present invention mainly includes a temperature and humidity sensing unit 21, a processing control control processing unit (Micro Control Unit; MCU) 22 and One fan motor circuit 23. The temperature and humidity sensing unit 21 is used to sense the temperature T and humidity H of the operating environment of the fan speed control system 2 and output a temperature and humidity-related electronic signal S1 (or a temperature-related electronic signal and a humidity Relevant electronic signals) to the processing control control processing unit 22, and the processing control control processing unit 2 2 outputs a digital signal 2 2 1 according to the electronic signal S1, such as a pulse. Page 8

12401561240156

五、發明說明（3) 衝波寬度調變（Pulse Width Modulation ;PWM)訊號，用 以驅動風扇馬達電路2 3 1進而控制風扇馬達（未顯示）的私 出轉速v。 $ 此外，本發明之溫濕度感測之風扇控速系統2更可包八 速度感測單元2 4 ’用以感測風扇馬達的輸出轉速v並斜_ 應地輸出一速度相關電子訊號S2給處理控制至控制處理單 元2 2 ’俾處理控制控制處理單元2 2則可依此速度相關電 訊號S2對於所欲輸出的數位訊號2 2 1進行補償，以確保風户 馬達的輸出轉速v即為期望轉速。 ％ 請參見圖2，一實施例中，本發明之溫濕度感測單元2工 主要包含一溫度感測元件例如是熱敏電阻器2 1 1、一濕度 感測元件212例如是濕敏電阻器、及複數電阻器213及、、、又 214。 的 此外，溫濕度感測單元2 1具有一電壓輸入端子2丨5及二 個訊號輸出端子2 1 6，電壓輸入端子2丨5係與一電壓源_連 接’而§fl號輸出端子2 1 6係與處理控制控制處理單元2 2連V. Explanation of the invention (3) Pulse Width Modulation (PWM) signal is used to drive the fan motor circuit 2 3 1 and then control the private rotation speed v of the fan motor (not shown). In addition, the temperature and humidity sensing fan speed control system 2 of the present invention can include eight speed sensing units 2 4 'to sense the output speed v of the fan motor and obliquely output a speed-related electronic signal S2 to Processing control to control processing unit 2 2 '2Processing control control processing unit 2 2 can compensate the digital signal 2 2 1 to be output according to the speed-related electrical signal S2 to ensure that the output speed v of the fan motor is Expected speed. % Please refer to FIG. 2. In an embodiment, the temperature and humidity sensing unit 2 of the present invention mainly includes a temperature sensing element such as a thermistor 2 1 1 and a humidity sensing element 212 such as a humidity thermistor. , And a plurality of resistors 213 and 214. In addition, the temperature and humidity sensing unit 21 has a voltage input terminal 2 丨 5 and two signal output terminals 2 1 6; the voltage input terminal 2 丨 5 is connected to a voltage source 'and §fl output terminal 2 1 6 series and processing control control processing unit 2 2 connected

八就電路特性而έ ，由於本實施例之訊號輸出端子2 1 β 刀別負責接收温度感測π件及濕度感測元件所輸出的電子 =號…及义2，在此是擷取熱敏電阻211及濕度感測元件212 的端電壓，因此吾人可以藉由調，整電阻器213之電阻值R1& 電阻器214之電阻值R2以及採用適當規格的熱敏電阻21 i及 濕度感測元件2 1 2來設計一符合需求的溫濕度感測單元Eight in terms of circuit characteristics, since the signal output terminal 2 1 β of this embodiment is responsible for receiving the electronic = number ... and meaning 2 output by the temperature sensing π and the humidity sensing element, here is the thermal sensor The terminal voltage of the resistor 211 and the humidity sensing element 212, so we can adjust the resistance value R1 of the resistor 213 & the resistance value R2 of the resistor 214 and the thermistor 21 i and the humidity sensing element with appropriate specifications 2 1 2 to design a temperature and humidity sensing unit that meets the needs

IIII

1240156 發明說明（4) 藉由本發明的溫濕度感測單元2〗， 控 速系統2可以依照操作環境的溫度及濕度控度:二 而輸出適當的轉速，一方面可確保操作環境中制:扇馬達 不會過熱或有水氣附著的現象發生，另—方面也可且： 低電力消耗的效果。 〃、牛 舉例而言，當溫濕度感測之風扇控速系統2之操作環 :竟的溫度在較低的時候，吾人可以降低風扇馬達的轉速： 二^電力，而當操作環境的濕度較高的時候，吾人也可以 提南風扇馬達的轉速來去除濕氣。 、 綜上，本發明已藉由上述之實施例及變化例來詳加描 ，。然而，熟習該項技術者當了解的是，本發明之所有的 貫施例在此僅為例示性而非為限制㉗，亦#，在不脫離 發明貫質精神及範圍之Θ ’基於上述所述及之溫濕度感測 ^風扇控速系統的其他變化例及修正例均為本發明所涵 盍，本發明係由後附之申請專利範圍所加以界定。.1240156 Description of the invention (4) With the temperature and humidity sensing unit 2 of the present invention, the speed control system 2 can output an appropriate speed according to the temperature and humidity control of the operating environment: Second, it can ensure that the operating environment is controlled by the fan: The motor will not overheat or moisture will adhere to it. In addition, it can also: The effect of low power consumption.牛 For example, when the temperature and humidity sensing of the fan speed control system 2 operation ring: when the temperature is low, we can reduce the speed of the fan motor: 2 ^ Electricity, and when the humidity of the operating environment is higher than At high times, we can also raise the speed of the Nan fan motor to remove moisture. In summary, the present invention has been described in detail through the above-mentioned embodiments and modified examples. However, those skilled in the art should understand that all the implementation examples of the present invention are only exemplary and not restrictive here. Also, without departing from the spirit and scope of the invention, Θ 'is based on the above. The other variations and modifications of the temperature and humidity sensing ^ fan speed control system mentioned are all covered by the present invention, and the present invention is defined by the scope of the attached patent application. .

第10頁 1240156 圖式簡單說明 圖1係一方塊圖，顯示本發明之溫濕度感測之風扇控 速系統。 圖2係一示意圖，顯示本發明一實施例之溫濕度感測 口口 早兀。 元件符號說明 2 溫 濕 度 感 測 之 風 扇控速系統 21 溫 濕 度 感 測 單 元 211 熱 敏 電 阻 212 濕 度 感 測 元 件 213 電 阻 器 214 電 阻 器 215 電 壓 入 端 子 216 訊 號 輸 出 端 子 22 控 制 處 理 單 元 221 脈 波 寬 度 調 變 信 號 23 風 扇 馬 達 電 路 24 速 度 感 測 單 元Page 10 1240156 Brief Description of Drawings Figure 1 is a block diagram showing a fan speed control system for temperature and humidity sensing according to the present invention. Fig. 2 is a schematic diagram showing that the temperature and humidity sensing port of an embodiment of the present invention is early. Component symbol description 2 Fan speed control system for temperature and humidity sensing 21 Temperature and humidity sensing unit 211 Thermistor 212 Humidity sensing element 213 Resistor 214 Resistor 215 Voltage input terminal 216 Signal output terminal 22 Control processing unit 221 Pulse width Modulation signal 23 Fan motor circuit 24 Speed sensing unit

第11頁Page 11

Claims (1)

1240156 六、申請專利範圍 六、申請專利範圍 1. 一種溫濕度感測之風扇控速系統，包含： 一風扇馬達電路； 一溫度感測元件，用以感測該風扇控速系統之溫度， 並輸出一第一電子訊號； 一濕度感測元件，用以感測該風扇控速系統之濕度， 並輸出一第二電子訊號；以及 一控制處理單元，用以處理該第一電子訊號及該第二 電子訊號且輸出一數位訊號至該風扇馬達電路以控制風扇 馬達轉速。 2. 如申請專利範圍第1項之溫濕度感測之風扇控速系統， 更包含： 一速度感測單元，用以感測該風扇馬達之轉速並輸出一第 三電子訊號，該第三電子訊號由該控制處理單元處理。 3. 如申請專利範圍第1項之溫濕度感測之風扇控速系統， 其中該濕度感測元件係一濕敏電阻器。 4. 如申請專利範圍第1項之溫濕度感測之風扇控速系統， 其中該溫度感測元件係一熱敏電阻器。 5. 如申請專利範圍第1項之溫濕度感測之風扇控速系統， 其中該數位訊號係一脈波寬度調變訊號。1240156 6. Scope of patent application 6. Scope of patent application 1. A temperature and humidity sensing fan speed control system includes: a fan motor circuit; a temperature sensing element for sensing the temperature of the fan speed control system, and Outputting a first electronic signal; a humidity sensing element for sensing the humidity of the fan speed control system and outputting a second electronic signal; and a control processing unit for processing the first electronic signal and the first electronic signal Two electronic signals and output a digital signal to the fan motor circuit to control the fan motor speed. 2. The fan speed control system for temperature and humidity sensing according to item 1 of the patent application scope further includes: a speed sensing unit for sensing the rotation speed of the fan motor and outputting a third electronic signal, the third electronic The signal is processed by the control processing unit. 3. For example, the fan speed control system for temperature and humidity sensing according to item 1 of the patent application scope, wherein the humidity sensing element is a humidity sensitive resistor. 4. For the fan speed control system for temperature and humidity sensing according to item 1 of the patent application scope, wherein the temperature sensing element is a thermistor. 5. For example, the fan speed control system for temperature and humidity sensing in the first patent application scope, wherein the digital signal is a pulse width modulation signal. 第12頁 1240156 六、申請專利範圍 6. —種溫濕度感測之風扇控速系統，包含： 一風扇馬達電路； 一溫濕度感測單元，用以感測該風扇控速系統之溫度 及濕度，並輸出一第一電子訊號；以及 一控制處理單元，處理該第一電子訊號且輸出一數位 訊號至該風扇馬達電路以控制一風扇馬達之轉速。 7. 如申請專利範圍第6項之溫濕度感測之風扇控速系統， 更包含： 一速度感測單元，用以感測該風扇馬達轉速且輸出一 第二電子訊號，該第二電子訊號由該控制處理單元處理。 8. 如申請專利範圍第6項之溫濕度感測之風扇控速系統， 其中該溫濕度感測單元包含一熱敏電阻器、一溼敏電阻器 及複數電阻器。 9.如申請專利範圍第6項之溫濕度感測之風扇控速系統， 其中該數位訊號係一脈波寬度調變訊號。Page 12 1240156 6. Application for patent scope 6. —A kind of fan speed control system for temperature and humidity sensing, including: a fan motor circuit; a temperature and humidity sensing unit for sensing the temperature and humidity of the fan speed control system And output a first electronic signal; and a control processing unit that processes the first electronic signal and outputs a digital signal to the fan motor circuit to control the speed of a fan motor. 7. The fan speed control system for temperature and humidity sensing according to item 6 of the patent application scope, further comprising: a speed sensing unit for sensing the rotation speed of the fan motor and outputting a second electronic signal, the second electronic signal Processed by this control processing unit. 8. The fan speed control system for temperature and humidity sensing according to item 6 of the patent application, wherein the temperature and humidity sensing unit includes a thermistor, a humidity resistor, and a plurality of resistors. 9. The fan speed control system for temperature and humidity sensing according to item 6 of the patent application, wherein the digital signal is a pulse width modulation signal. 第13頁Page 13
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