200809451 九、發明說明: 【發明所屬之技術領域】 本發明係關於一種風扇控制系絲壯 偵測工作元件之溫度與功率而據^ ’特別是指一種 風扇控制系統。控制風扇轉速之 【先刖技術】 _ 在一般之電子裝置或生產系絲也 須對裝置、系統或環境溫度進J ’有許多時候必 保裝置或系統在高效能的環境下運^之f空制，才能確 子裝置（如電腦）或生產系統（如^、。為了對這些電 統）之運作溫度進行有效的控制，^冷式谇火加工系 饋系統外，冷卻系統亦扮演著曰来承了加熱和恆溫回 些冷卻系統中，所採用之冷卻备®要的角色。在這 式、液冷式或固態熱傳導等方式。武大多不外乎氣冷 式之運作成本通常較為低廉，^ ^其中，又因為氣冷 j+ n 貝為大眾所採用。 在此一前提下，環顧大部分^ 中，風扇可謂是常見冷卻元件中田目乳冷式冷卻系統 風扇通常會因為^ίί副‘ 制J式而加以控制，其控制方式通常有三種控 如係設定固定之轉速而加以控制；其二為 、^酿度來加以控制之方式；其三則為利用偵測 功率來加以控制之方式。 οΐΓ第—種方式而言’通常設有數段風速以供使 込擇與切換，除非使用者以手動切換之方式加以 控制’否則根本無法因應環境而自動調整轉速。在此 200809451 設定在較高之^^係數的考量，通常都會將咸扇 噪音’並且會產生較大之 二對於第二種太斗工丄 1 明。請參閱第_^^VS，一吾人將列舉一例加以說 件、風扇杵制备圖’v、係顯示一習知技術中之工作元 風扇之功能方塊圖 風肩控制系風^之轉逸^ !· 11、一處理I -匕各有一工作兀件溫度偵測單元 ’ 作元件溫度風綱彳電路13。其中’工 ί度’據以發送出一工作元件溫度信號si 凡12進行處理運算，經過處理單元12之處 理運灸’會發送出一控制信號S2至風扇控制電路 13 ’據以對風扇3之轉速進行無分段或分段運轉之控 制。 $凡在風扇控制系統相關領域中具有通常知識 者皆，理^ ’在上述習知技術中，當所偵測之溫度低 於特疋值日寸’風扇則不會轉動，藉以減少電力之消 $。然而，倘若工作元件2長時間處於高負載操作狀 態’在結束操作或轉為低功率運作時，其溫度尚高， 使風扇3仍會鬲速運轉而產生噪音。當所偵測之工作 溫度在預設之臨界參考值時，風扇3可能會轉轉停 停，或不斷啟動。在溫度偵測方面，若風扇3不轉， 工作元件溫度偵測單元11僅靠與工作元件2接觸傳 導方式來偵測，使真正發熱元件之溫度上有差距。此 外，對於工作元件溫度偵測單元11與運作時會發熱 之工作元件2而言，皆有安全規範方面之要求。在實 200809451 _ . 圓 ''' ' · . 圓.国:. - . ； ' . V . - .； 務運用上，為了符合安夺招狄 1 邱柃夕A導H 庇，規乾之要求，通常會犧牲掉 抓之傳VU，使得_所得之結果失真。 ^ 〇 ίίIlf a^ 元株Ί戶批♦丨I〜係顯示另一習知技術中之工作 ΐ ㈣風扇之魏霞圖。如圖所 λ ^ ^ ^ 2a ^ #Ϊ； ^ 3a 之 ^: $風扇3糸統1a包含有-工作元件功率债 ΪΙ兀理單元12a與一風廢控制電路13a。 二I、工作ΐί功率债測單元11&係甩以偵測該工作 =件^ ί運t功率，據以發送出一工作元件功率信 j.Sl’f處理，元12a進行處理運算，經過處理單元 制H处1 f 2丹後’會發送出一控制信號S3至風扇控 驗電ί w，據以對風扇3之轉速進行無分段或分段運 轉之控制。 舉凡在風扇控制系統相關領域中具有通常知識 >旎理解’在上述習知技術中，當工作元件2a停 ^運作時’風扇3a亦隨之停止運作;當工作元件2a 合低功，下運作時，風扇3a可能不會轉動。此外， 疋件2a以較高之啟動功率開始運作，或是在 動功率進行短時間的操作，仍會產生令人感到不 田^的诔音。在工作元件2a經過長時間之高負載使 彳’一旦突然改為低功率操作，則風扇之轉速亦會 驟降:但工作元件2a仍會繼續發熱，使得工作 凡1之先前高負載運作時所產生之高熱更不易逸散 至匕界。如此，將很有可能致使工作元件之溫度高於 預设之保護溫度設定值，並因此而造成工作元件之損 壞' 、 200809451 .* ... · - . · . . . . · I . ，： I. :..… ' ' 【發明内容】 二 本發明所欲解決之技術問題與目的: ... ..... 1' : , . · ' 綜整以上所述，在習知技術中常用之三種處理 式，分別存在有不少缺點。其中，在設定固定之鞋f 加以控制之方法中，為了減少使甩者手動切換 1次數’以及對裝置或系統控制安全係數的考量，= 常都會將風扇設定在較高之固定轉速下運轉，因而^ 易產生較大之噪音，並且會消耗較多之工作電力。各 .· ....... - .... , . ； ：；' . •之^作溫度在預設之臨界參考值時，風扇可能會“轉 、 停停，或不斷啟動；且為了符合安全規範之要求，容 易致使偵測所得之結果失真。 在利用偵測功率來加以控制之方式中，一旦工作 元件停止運作，風扇就會跟著停止運作而無法繼續提 供冷卻的效果。當工作元件以較高之啟動功率開始運 作’或是在高啟動功率進行短時間的搡作，仍會產生 令人感到不舒適的噪音。同時，在長時間高負載之狀 •況下’突然轉成低負載狀況時，將容易致使工作元件 || 之溫度高於預設之保護溫度設定值，並因此而造成工 『作元件之損壞。 緣’本發明之主要目的係提供一種風扇控制系 統’該系統具有工作元件溫度偵測單元與工作元件功 率偵測單元，藉以分別偵測出工作元件之溫度與功 率，並據以產生控制信號來控制風扇之轉速而同時解 決上述問題。 本發明解決問題之技術手段： 200809451 .- ,--. . . . . ..-. - · . . .圓 . '. - . .. ， , ’， · · .- . · · * - . • · . . · · · - .. 本發明為解決習知技術之問題所採用之技術手 段係提供一種風扇控制系統，其係用以债測工作元件 之溫度與功率，據以控制用於冷卻該工作元件之至少 一風扇之轉速。該風扇控制系統包含有至少一工作元 件溫度债測單元，藉以偵測該工作元件之溫度以得到 工作元件温度。該風扇控制系統尚包含有至少一工作 元件功岸偵測單元，藉以偵測該工作元件之功率以得 到工作元件功率。該風扇控制系統更包含有一風扇控 制電路，且該風扇控制電路預設有一下限參考溫度、 ‘一高f該下限參考溫度之上限參考溫度與一參^ 率’藉以在與該工作元件溫度及該工作元件功率進行 比較後’據以輸出一控制信號而控制上述風扇之運轉 速度。 本發明對照先前技術之功效： 相較於習知利用設定固定之轉速以控制風扇轉 速之技術而言，本發明可反應工作元件溫度與工作元 件功率而調整該控制信號，並有效控制風扇之轉速， 因此’可以收到有效解決高噪音與高電力消耗等問題 之功效。 、 相較於習知利用偵測工作元件溫度以控制風3 轉速之技術而言，當風扇不轉時，仍可藉由工作元子 之Ϊ測結果來辅助運算風扇之轉速，可有效減2 Ϊ ί Ϊ作疋件溫度资測結果失真而•成控制上之ί nr % ’在工作元件偵測溫度介於g界值」 4由工作元件功率之控制因子來控制風扇車 木丨批:丨至於轉轉停停。因此，可以收到減少一< 田之控制偏是以及穩定風扇轉速之功效。 相車乂於驾知利用偵測工作元件功率以控制風^ 11 200809451 速仍會受到:Μφ元件·^作^件T運作’風扇之轉 運作。备工你I f件溫度之控制，而不至於立即停止 在-啟1之1疋件以較高之啟動功率開始運作，或是 至於在太古之I緩衝稀釋工作元件因子而控制風扇不 卫i元下，突然轉成低負載狀況時，由於 夕，店凰？-仍偏高’故風扇轉速不會立即下降太 =r。$工作兀件仍可繼繪獲得充分之冷卻而不至於 m i Jt j二:以收到穩定風扇轉速、減少瞬間啟動 本日與保護工作元件之放果。 ... . . ：.- . u 本發明所採用的具體實施例，將藉由以下之實施 • .'..·.· . · · · 【實施方式】 • · - . · - . · ·..··· · -. - - - · - - 由於本發明所提供之風扇控制系統可廣泛運用 於各種具有冷卻或散熱風扇之系統，其組合^施方式 ▲ 更是不勝枚舉，故在此不再一一贅述，僅列舉1中敕 • 佳之二實施例加以說明 ▲請參閱第三圖，其係顯示本發明第一實施例之功 能方塊圖。如圖所示，一風扇控制系統4係用以偵測 一工作元件5之溫度與功率，據以控制用於冷卻該^ 作元件5之一風扇6之轉速。該風扇控制系統* ^含 有一工作元件溫度偵測單元41、一工作元件功率偵測 單元42與一風扇控制電路43。其中，工作元件^度 偵測單元41係用以偵測工作元件5之至少一選定位 置（如中心位置或表面位置)之溫度，以得到一工作 元件溫度T (標示於第五圖），並透過一工作元件溫 12 200809451 . - ' .. - ' . . .... .. ' .. + - . . 度信號S4傳送至風扇控制電路43。工作元件功率偵 測單元42係用以偵測該工作元件之功率，以得到」 工作元件功率P (標示於第五圖)，並遷過一工作元 件功率信號S5傳送至風扇控制電路43。風扇控制電 路43係分別連通工作元件溫度债測單元41與該工作 元件功率偵測單元42，並依據工作元件溫^^號以 所傳送之工作元件溫度Τ，以及工作元件功率信號85 所傳送之工作元件功率Ρ而輸出一控制信號§6。 請繼續參閱第四圖與第五圖。其中，第四圖係顯 W 不本發明第一實施例之風扇控制系統之功能方塊 圖’苐五圖係顯示第四圖所對應之電路圖。如圖戶斤 不，上述之風扇控制電路43包含有一功率信號傳輸 電路431、一下限溫度比較單元432、一上限溫度比 較單元433、一參考功率比較單元434、一控制開關 435、一控制閘436、一鍰衝電路437與一權重加法哭 ... .... ... . 其中，功率信號傳输電路431中設有一限流元件 431a，藉以限制流入風扇控制電路43之電流。下限 ▲ 溫度比較單元432與上限溫度比較單元433内分別預 • 供上述之工作元件溫度T分別與之比對。同時，參考 功率比較單元434内則預設有一參考功率pref，^以 供上述之工作元件功率與之比對。在本實施例中厂限 流元件43U係指一限流電阻，下限溫度比較單元 432、上限溫度比較單元433與參考功率比較單元434 皆分別為一比較放大器。 、 . 控制開關435係分別連通於功率信號傳輸電路 431與下限溫度比較單元\432，並且具有一閉路位置 〇1、一開路位置02與一接地端G。控制閘436係分 200809451 . - · . . . . . ·200809451 IX. Description of the Invention: [Technical Field] The present invention relates to a fan control system for detecting the temperature and power of a working element, and in particular to a fan control system. Controlling fan speed [prior art] _ In general electronic devices or production lines, it is necessary to enter the device, system or ambient temperature. There are many times when the device or system must be operated in a high-performance environment. In order to ensure the effective operation of the operating temperature of the device (such as computer) or production system (such as ^, in order to operate these systems), the cooling system also plays a role in the cooling system. Under the heating and constant temperature back to some of the cooling systems, the role of the cooling equipment used. In this way, liquid-cooled or solid-state heat conduction. Most of the air is air-cooled. The operating cost is usually relatively low. ^ ^ Among them, because the air-cooled j+ n shell is used by the public. Under this premise, looking around most of the fans, the fan can be described as a common cooling element. The fan of the field-cooled cooling system is usually controlled by the control system. The control method usually has three control settings. The fixed speed is controlled; the second is the way to control the degree of brewing; the third is the way to use the detected power to control. οΐΓ The first method is usually provided with several wind speeds for selection and switching unless the user controls it by manual switching. Otherwise, the speed cannot be automatically adjusted according to the environment. In 200809451, the higher the ^^ coefficient is considered, the salt fan noise will usually be 'and the larger one will be produced for the second type of labor. Please refer to the _^^VS, one of us will list an example, the fan 杵 preparation diagram 'v, is a functional block diagram of the working element fan in a conventional technology. The wind shoulder control system wind ^ turn ^! 11. A processing I-匕 each has a working element temperature detecting unit' as a component temperature windshield circuit 13. Wherein the 'work degree' is sent out a working element temperature signal si, where 12 is processed, and after processing by the processing unit 12, the moxibustion 'will send a control signal S2 to the fan control circuit 13' to the fan 3 The speed is controlled without segmentation or segmentation. Anyone who has the usual knowledge in the field of fan control systems, in the above-mentioned prior art, when the detected temperature is lower than the special value, the fan will not rotate, thereby reducing the power consumption. $. However, if the working element 2 is in a high load operation state for a long time, the temperature is still high at the end of the operation or when it is switched to the low power operation, so that the fan 3 will still idle and generate noise. When the detected operating temperature is at the preset critical reference value, the fan 3 may be turned to stop or continuously. In the temperature detection, if the fan 3 does not rotate, the working element temperature detecting unit 11 is only detected by the contact with the working element 2, so that there is a gap in the temperature of the real heating element. In addition, there are safety specifications for the working element temperature detecting unit 11 and the working element 2 that generates heat during operation. In the real 200809451 _ . Round ''' ' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . It is usually sacrificed to catch the VU, so that the result of _ is distorted. ^ ί ίίIlf a^ Yuanzhu Seto ♦丨I~ shows the work in another conventional technique ΐ (4) Wei Xia diagram of the fan. As shown in the figure, λ ^ ^ ^ 2a ^ #Ϊ; ^ 3a ^: $fan 3 system 1a includes a working element power debt processing unit 12a and a wind waste control circuit 13a. Second I, work ΐ 功率 power debt measurement unit 11 & 甩 to detect the work = piece ^ ί transport t power, according to a work element power letter j.Sl 'f processing, element 12a processing After the unit system H is 1 f 2 丹, 'will send a control signal S3 to the fan control ί w, according to the control of the speed of the fan 3 without segmentation or segmentation. In the related art of the fan control system, there is a general knowledge > 旎 understanding 'in the above-mentioned prior art, when the working element 2a is stopped, the fan 3a is also stopped; when the working element 2a is low-powered, it operates At the time, the fan 3a may not rotate. In addition, the component 2a starts to operate at a higher starting power, or operates at a short power of a short period of time, and still produces a sound that is unpleasant. After a long period of high load on the working element 2a, once the sudden change to low power operation, the speed of the fan will also drop suddenly: but the working element 2a will continue to heat up, so that when the previous high load operation is performed, The high heat generated is less likely to escape to the boundary. In this way, it is very likely that the temperature of the working element is higher than the preset protection temperature setting value, and thus the working element is damaged. ' 200809451 .* ... · - . . . . . . I. :..... ' ' [Invention] The technical problems and objectives to be solved by the invention are as follows: ..... 1' : , . · ' Comprehensively described above, in the prior art There are a number of disadvantages in the three commonly used treatments. Among them, in the method of setting the fixed shoe f to be controlled, in order to reduce the manual switching of the number of times 'and the safety factor of the device or system control, the fan is often set to operate at a higher fixed speed. Therefore, it is easy to generate a large noise and consumes a lot of working power. Each .· ....... - .... , . ; :;' . • The temperature of the fan may be “turned, stopped, or continuously activated” at the preset critical reference value; In order to comply with the requirements of the safety regulations, it is easy to cause distortion of the result of the detection. In the way of using the detection power to control, once the working element stops operating, the fan will stop working and cannot continue to provide cooling effect. The component starts to operate at a higher starting power' or a short-time operation at high starting power, which still produces uncomfortable noise. At the same time, it suddenly turns into a sudden high load. Under low load conditions, it will easily cause the temperature of the working element|| to be higher than the preset protection temperature setting value, and thus cause damage to the component. The main purpose of the present invention is to provide a fan control system. The system has a working element temperature detecting unit and a working element power detecting unit to respectively detect the temperature and power of the working element, and generate a control signal to control the speed of the fan. At the same time, the above problems are solved. The technical means for solving the problem of the present invention: 200809451 .-,--. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The technical means employed by the present invention to solve the problems of the prior art provides a fan control system for measuring the temperature and power of the working component. Controlling the rotational speed of at least one fan for cooling the working element. The fan control system includes at least one working element temperature debt detecting unit for detecting the temperature of the working element to obtain the working element temperature. The fan control system is still The utility model comprises at least one working component power detecting unit, wherein the power of the working component is detected to obtain the working component power. The fan control system further comprises a fan control circuit, and the fan control circuit presets a lower limit reference temperature, a high f, the lower limit reference temperature, the upper reference temperature and a parameter 'to be compared with the working element temperature and the working element power' to output a control signal to control the above The operating speed of the fan. The present invention compares the effects of the prior art: In contrast to conventional techniques for setting a fixed rotational speed to control fan speed, the present invention can adjust the control signal in response to the operating element temperature and the operating element power, and Effectively control the speed of the fan, so 'can receive the effect of effectively solving the problems of high noise and high power consumption. Compared with the conventional technology of detecting the temperature of the working element to control the speed of the wind 3, when the fan does not turn At the same time, the test result of the working element can still be used to assist the operation of the fan speed, which can effectively reduce the distortion of the temperature measurement result of the workpiece temperature. • The control is ί nr % 'in the working component detection The temperature is between the g thresholds. 4 The control factor of the working component power is used to control the fan car raft: 丨 as for the stop and stop. Therefore, it is possible to receive a reduction in the control of the field and the effect of stabilizing the fan speed. The car is used to control the power of the working element to control the wind. 11 200809451 The speed will still be affected by: Μφ component·^^^^^ Prepare the temperature control of your I f part, and not stop immediately at the start of the 1 疋 以 以 以 以 以 以 较高 较高 较高 , , , , , , 太 太 太 太 太 太 太 太 太 太 太 太 太 太 太 太 太 太 太 太 太 太 太 太Under the Yuan, suddenly turned into a low load situation, due to the evening, shop phoenix? - Still high" so the fan speed will not drop immediately too = r. $Working conditions can still be fully cooled without being painted. m i Jt j II: In order to receive stable fan speed, reduce the instant start and protect the working components. ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..··························································································· The description of the first embodiment of the present invention is shown in the following figure. Referring to the third embodiment, reference is made to the third embodiment, which is a functional block diagram showing a first embodiment of the present invention. As shown, a fan control system 4 is used to detect the temperature and power of a working element 5, thereby controlling the speed at which the fan 6 of one of the components 5 is cooled. The fan control system *^ includes a working element temperature detecting unit 41, a working element power detecting unit 42, and a fan control circuit 43. The working component detecting unit 41 is configured to detect the temperature of at least one selected position (such as the center position or the surface position) of the working component 5 to obtain a working component temperature T (labeled in the fifth figure), and Through a working element temperature 12 200809451 . - ' .. - ' . . . . . . ' . . + - . . . The degree signal S4 is transmitted to the fan control circuit 43. The working component power detecting unit 42 is configured to detect the power of the working component to obtain the "working component power P (indicated in the fifth figure) and to pass the working component power signal S5 to the fan control circuit 43. The fan control circuit 43 communicates with the working element temperature debt detecting unit 41 and the working element power detecting unit 42 respectively, and transmits the working element temperature Τ according to the working element temperature and the working element power signal 85. The working element is powered and outputs a control signal §6. Please continue to see the fourth and fifth figures. The fourth figure shows a functional block diagram of the fan control system of the first embodiment of the present invention. The fifth diagram shows the circuit diagram corresponding to the fourth figure. As shown in the figure, the fan control circuit 43 includes a power signal transmission circuit 431, a lower limit temperature comparison unit 432, an upper limit temperature comparison unit 433, a reference power comparison unit 434, a control switch 435, and a control gate 436. A buffer circuit 437 and a weight addition crying ..... wherein the power signal transmission circuit 431 is provided with a current limiting element 431a, thereby limiting the current flowing into the fan control circuit 43. Lower limit ▲ The temperature comparison unit 432 and the upper limit temperature comparison unit 433 are respectively preliminarily compared with the above-described working element temperatures T. At the same time, the reference power comparison unit 434 presets a reference power pref, which is used to compare the power of the above-mentioned working elements. In the present embodiment, the current limiting element 43U is a current limiting resistor, and the lower limit temperature comparing unit 432, the upper limit temperature comparing unit 433 and the reference power comparing unit 434 are each a comparison amplifier. The control switch 435 is connected to the power signal transmission circuit 431 and the lower limit temperature comparison unit \432, respectively, and has a closed circuit position 〇1, an open position 02, and a ground terminal G. Control gate 436 series 200809451 . - · . . . . .
:別連通上述之上限溫度比較單元433與參考功率比較 單元434。緩衝電路437係連通控制開關435，其包 含有第五圖所示之放大器與回授電路。權重加法器 438係分別連通控制閘436與缓衝電路437，其内設 有一組配比權重W，在本實施例中，該組配比權重W 包含有一第一配比權重W1與一第二配比權重W2。 ' ： - ：;.·. . ., . . . - - : . ; ....... ' -... . . - ^風扇控制電路43開始運作時，功率信號傳輪 電路431會傳輸代表一第一控制因子a (在本實施例 中係工作元件功率）之一第一因子信號SA。同時， 當工作元件溫度τ高於下限參考溫度τι時y會發出 紙 一開關控制信號S7 ,藉以將控制開關435切換至開 路位置02，並傳送出第一因子信號SA，當工作元件 溫度T低於下限參考溫度τΐ時，所發出之開關控制 信號S7會將控制開關435切換至閉路位置〇1，以使 第一因子信號SA依序經由閉路位置01與接地端（3 而接地，換以言之，亦即不會傳送出第一因子信號 SA。在本實施例中，在控制開關435與權重加法器 438之間特別接上緩衝電路437，藉以穩定地將第一 - 因子信號SA傳送至權重加法器438。 !• 此外，在工作元件溫度T與上限參考溫度Τ2進 行比較後，會產生代表一第二控制因子玫之> 第二因 子信號SB ;在工作元件功率p與參考功率pref進行 比較後’會產生代表一第三控制因子C之一第三因子 彳§號SC。控制閘43 6在本實施例中係指一或閘（OR Gate)，其係用以控制第二因子信號犯與第三因子信 號SC之傳送。當工作元件溫度τ高於上限參考溫度 Τ2時，會傳送出第二因子信號Sb ;當工作元件溫度 T巧，該上限參考溫度丁2時，則中斷傳送該第二因 子彳§號SB，當工作元件功率p高於參考功率pref時， 200809451 . ... .... .. : ’ . 會傳送出該第三因子信號SC ;當工作元件功率P低 於參考功率Pref時，則會中斷傳送第三因子信號sc。 - - ... . #在本實施例中，第一控制因子A儀對應於第一配 比權，W1，第二控制因子b與第三控制因子C係對 應於第二配比權重W2。同時，第一控制因子A、第 二控制因子B與第三控制因子c會在權重加法器438 内分別與對應之第一配比根重W1與w2，並且將相 乘以後之乘積相加，據以輸出該控制信號S6。 、承以上所述，請繼續參閱表一所示之控制信號組 • 成關係表。如該表第五列所示，該列之「T<T1」攔 顯示「否（A，W1)」，「Τ>Τ2」欄顯示「否（0，W2)」， 「P>Pref」攔顧示「是(C，W2)」，「控制信號組成關係」 攔則顧示「AW1+CW2」。 表一··控制 丨信號組成務 Η系表 τ<τι T>T2 P>Pref 控制信號組成關係 是(0，W1) 否(0，W2) 否(〇，W2) 0 是(0，W1) 否(0，W2) 是(C，W2) CW2 否(A，W1) 否（0, W2) 否（〇，W2) AW1 吝(A，W1) 否（0，W2) 是(C，W2) AW1+CW2 i(A，Wl) 是(B，W2) 否(〇,W2) AW1+BW2 否(A，W1) 是(B，W2) 是(C，W2) AW1+BW2+CW2 其意義代表，工作元件溫度T高於下限參考溫度 T1 ’會輸出第一控制因子a，其對應於第一配比權重 15 200809451 W1 ;工作元件溫度T低於上限參考溫度T2，不會輸 出第二控制因子B (故為0 )，其對應於第二配比權重 Y2 ;工作元件功率P高於參考功率Pref，會輸出第 三控制因子C，其對應於第二配比權重德；各項相 乘加總後之控制信號組成關係為aw1+〇W2+cw^， 亦即AW1+BW2，亦即該控制信號S6會依據 AW1+BW2之組成關係而輸出。 . . : : - . · ... : ' .· . · _ A m 接著，成以上所述列舉二具備量化數據之實例來 驗證本發明相較於上述習用風扇控制系統丄與乜之 功效。首先，假設工作元件之最高輸出功率3〇Watt， 下。限參考溫度為τι = 5〇°c，上限參考溫度丁2 = 70C ’第一配比權重=0.5，第二配比權重= 〇·5，參 考功率fref = 3.5Watt，習用風扇控制系統丨之臨界溫 度係70°C，所偵測之工作元件溫度τ =⑽。〇〜72。〇時， 所偵測之工作元件功率P==4 〇Watt〜4 2Watt。 在習用風扇控制系統丨中，由於所偵測之工作元 1溫度介於68它與72它之間，故當溫度為68艺〜7〇〇〇: The upper limit temperature comparison unit 433 and the reference power comparison unit 434 are not connected. The buffer circuit 437 is connected to the control switch 435, which includes the amplifier and feedback circuits shown in the fifth figure. The weighting adder 438 is connected to the control gate 436 and the buffer circuit 437, respectively, and has a set of matching weights W. In this embodiment, the set ratio weight W includes a first ratio weight W1 and a second. Matching weight W2. ' : - : ; ; . . . . , . . . - - : . . . . . . . - ^ When the fan control circuit 43 starts operating, the power signal transmission circuit 431 will The transmission represents a first factor signal SA of a first control factor a (in this embodiment, the operating element power). Meanwhile, when the working element temperature τ is higher than the lower limit reference temperature τι, y will issue a paper-switch control signal S7, thereby switching the control switch 435 to the open position 02, and transmitting the first factor signal SA, when the working element temperature T is low When the lower limit reference temperature τ ,, the issued switch control signal S7 switches the control switch 435 to the closed circuit position 〇1, so that the first factor signal SA is sequentially grounded via the closed circuit position 01 and the ground terminal (3, in other words That is, the first factor signal SA is not transmitted. In the present embodiment, the buffer circuit 437 is specifically connected between the control switch 435 and the weight adder 438, thereby stably transmitting the first-factor signal SA to Weight adder 438. !• In addition, after the working element temperature T is compared with the upper limit reference temperature Τ2, a second factor SB representing the second control factor is generated; the working element power p and the reference power pref After comparison, a third factor 彳 § SC representing a third control factor C is generated. The control gate 436 is referred to as an OR gate in this embodiment, which is used to control the The two-factor signal is transmitted with the third factor signal SC. When the working element temperature τ is higher than the upper limit reference temperature Τ2, the second factor signal Sb is transmitted; when the working element temperature T is coincident, the upper reference temperature is 2, Then, the second factor 彳§ SB is interrupted, and when the working component power p is higher than the reference power pref, 200809451 . . . . . : ' . will transmit the third factor signal SC; when working When the component power P is lower than the reference power Pref, the transmission of the third factor signal sc is interrupted. - In this embodiment, the first control factor A corresponds to the first ratio, W1, The second control factor b and the third control factor C correspond to the second matching weight W2. Meanwhile, the first control factor A, the second control factor B and the third control factor c are respectively corresponding to the weighting adder 438. The first ratio roots are W1 and w2, and the multiplied products are added together to output the control signal S6. As described above, please continue to refer to the control signal group and relationship table shown in Table 1. As shown in the fifth column of the table, the column "T<T1" displays "No" A, W1)", "Τ>Τ2" column displays "No (0, W2)", "P> Pref" shows "Yes (C, W2)", "Control signal composition relationship" AW1+CW2". Table 1··Control 丨Signal Composition Table τ<τι T>T2 P>Pref Control signal composition relationship is (0,W1) No (0,W2) No (〇,W2) 0 Yes (0, W1) No (0, W2) Yes (C, W2) CW2 No (A, W1) No (0, W2) No (〇, W2) AW1 吝 (A, W1) No (0, W2) Yes (C, W2) AW1+CW2 i(A, Wl) Yes (B, W2) No (〇, W2) AW1+BW2 No (A, W1) Yes (B, W2) Yes (C, W2) AW1+BW2 +CW2 means that the working element temperature T is higher than the lower limit reference temperature T1 ', and the first control factor a is output, which corresponds to the first ratio weight 15 200809451 W1 ; the working element temperature T is lower than the upper limit reference temperature T2, Outputting a second control factor B (hence 0), which corresponds to the second matching weight Y2; the working element power P is higher than the reference power Pref, and outputs a third control factor C, which corresponds to the second matching weight; The control signal composition relationship after multiplication and summation is aw1+〇W2+cw^, which is AW1+ BW2, that is, the control signal S6 is output according to the composition relationship of AW1+BW2. . . : : . . . : : : : : : 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 First, assume that the highest output power of the working component is 3 〇 Watt, down. The reference temperature is τι = 5〇°c, the upper reference temperature is 2 = 70C 'the first ratio weight = 0.5, the second ratio weight = 〇 · 5, the reference power fref = 3.5Watt, the conventional fan control system The critical temperature is 70 ° C and the detected working element temperature τ = (10). 〇~72. When 〇, the detected working component power P==4 〇Watt~4 2Watt. In the conventional fan control system, since the detected working element 1 temperature is between 68 and 72, it is between 68 and 7 温度.
日Γ則上述冬風扇3就不會運轉，當溫度為7〇t〜72P y則上述之風扇3又開始運轉。亦即，上之風 3就會轉轉停停。^ ^ ^ 疋之風扇 译么ft的’在本實例中之風扇控制系統4中，备、、田 度為680c〜70〇C睹，您入主斤 ' 田/皿 則栌制户味〆a 表一弟五列所顧示之條件， 貝J控制仏遽組成關係為AW + 、In the future, the winter fan 3 will not operate. When the temperature is 7 〇 t to 72 y, the fan 3 described above starts to operate again. That is to say, the wind on the 3 will stop and stop. ^ ^ ^ Fan's translation of the fan's 'In the fan control system 4 in this example, the preparation, and the field are 680c~70〇C睹, you enter the main jin' field / dish is the household 〆 a Table 1 shows the conditions of the five columns, and the composition of the J control 为 is AW + ,
〇.5A+O.SC ； t ^^4 70t：4t J ^ P 信號、以繼 之控制k唬組成關係之局部變二而㈣ · c」 6之轉速作核m不 16 200809451 . . . . ； . - . 其次，再假設工作元件之最高输出功率30Watt， 下限參考溫度為T1 = 50乞，上限參考溫度T2 = 701)第一配比權重= 0.5，第二配比權重= 0.5 ,參 考功率Pref= 3.5Watt，習用風扇控制系統la之臨界 功率係3:5Watt，所偵測之工作元件溫度T = 80T：〜85〇G時，所偵測之工作元件功率？自4.〇^^打 ，然降至 2.0Watt。 八丨 在習用風翁控制系統la中，當所偵測之工作元 件功率降至2.0 Watt時，上述之風扇3a會立即停止 運轉。然雨，即便只有2.0 Watt之工作元件功率，仍 _ ^ 1 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ -助其冷卻，加上扁先所偾測之工作元件溫度已高達 80t：〜85°C，結果極有可能會使得功作元件2a繼續在 80T：〜85°C或是更高溫的條件下運作，並因而使得功 作元件2a更容易受損。 相對的，在本實例中之風翁控制系統4中，即便 工作元件功率只有2.0Watt，但是工作元件溫度仍有 80°C〜85t：時，符合表一第六列所顯示之條件，則控 制信號組成關係為AW1+BW2，亦即0.5A+0.5B，亦 _ 即控制信號仍會依據 ， 關係而繼續控制上述之風扇4繼續運轉。 以上，只不過列舉二具備量化數據之實例來驗證 以上所揭露功效中之二者，以上所揭露之其餘種種功 效亦可依據表一以及以上所提供之分析運算方法來 加以驗證，以下則不再一一贅述。 請繼績參閱第六圖，係顧示本發明第二實施例之 風扇控制系統電路功能示意圖，其係以數位化之方式 運算出控制信號。如圖所示，本實施例與第一實施例 17 200809451 之不同處係以另一風扇控制電路43a取代上述之風扇 控制電路43。同時，風扇控制電路43a與風扇控制電 路之不同處傳以一類比數位轉換電路439a、一處 理單το 439b與一數位類比轉換電路439(：取我風扇控 制電路43之功率信號傳輸電路431、控制開關435、 緩衝電路437與權重加法器_。其中，類比數位轉 換電路439a，係將所偵測之工作元件功率T由類比 =式轉換成數位形式。處理單元439b係依據工作元 件^度τ與下服參考溫度T1友上限參考溫度T2之 比結果，以及工作元件功率ρ與參考功率pref之 ^較結果，而以數位形式發送控制信號S6。數位類 ^轉換電路439c，係將控制信號S6轉換成類比形式 以控制風扇6 (標示於第三圖）之轉速。此外，上述 ^ 了限溫度比較單元432會依據上述之偵測工作溫度 T與下限參考溫度了1錢較結果而發出-功率因子 判斷信號S7，，藉以控制處理單元43%處理上述之第 一控制因子A。〇.5A+O.SC ; t ^^4 70t: 4t J ^ P signal, followed by the local variation of the k唬 composition relationship (4) · c" 6 the speed of the core m not 16 200809451 . . . Secondly, assume that the maximum output power of the working component is 30Watt, the lower reference temperature is T1 = 50乞, the upper reference temperature T2 = 701) the first ratio weight = 0.5, the second ratio weight = 0.5, the reference power Pref= 3.5Watt, the critical power system of the conventional fan control system la 3:5Watt, the detected working element temperature T = 80T: ~85〇G, the detected working component power? Since 4.〇^^, it has dropped to 2.0Watt. Gossip In the conventional wind control system la, when the detected working element power drops to 2.0 Watt, the above fan 3a will immediately stop running. However, even if only 2.0 Watt of the working component power, _ ^ 1 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ - help its cooling, plus the temperature of the working element measured by the flat first has reached 80t: ~ 85 At °C, the result is highly likely that the work element 2a continues to operate at 80T: ~85 ° C or higher, and thus the work element 2a is more susceptible to damage. In contrast, in the wind control system 4 of the present example, even if the working element power is only 2.0 Watt, but the working element temperature is still 80 ° C ~ 85 t: when it meets the conditions shown in the sixth column of Table 1, then control The signal composition relationship is AW1+BW2, that is, 0.5A+0.5B, and _, that is, the control signal will continue to control the above-mentioned fan 4 to continue to operate according to the relationship. In the above, only two examples with quantitative data are listed to verify the above two aspects of the disclosed effects. The remaining various functions disclosed above can also be verified according to the analytical calculation methods provided in Table 1 and above, and the following are no longer One by one. Please refer to the sixth figure for the function of the circuit of the fan control system according to the second embodiment of the present invention, which calculates the control signal in a digital manner. As shown in the figure, the difference between the present embodiment and the first embodiment 17 200809451 is replaced by another fan control circuit 43a in place of the above-described fan control circuit 43. At the same time, the difference between the fan control circuit 43a and the fan control circuit is transmitted by an analog-to-digital conversion circuit 439a, a processing unit το 439b, and a digital analog conversion circuit 439 (: the power signal transmission circuit 431 of the fan control circuit 43 is controlled. The switch 435, the buffer circuit 437 and the weight adder_. The analog digital conversion circuit 439a converts the detected working element power T into an analog form by analogy = the processing unit 439b is based on the working element ^ τ and The comparison result of the reference temperature T1 friend upper limit reference temperature T2, and the comparison result of the working element power ρ and the reference power pref, and the control signal S6 are transmitted in digital form. The digital class conversion circuit 439c converts the control signal S6 The analogy form is used to control the rotation speed of the fan 6 (shown in the third figure). In addition, the above-mentioned limit temperature comparison unit 432 issues a power factor according to the above-mentioned detection working temperature T and the lower limit reference temperature. The determination signal S7, by which the control processing unit 43% processes the first control factor A described above.
,ΐiif之本發明實施例可知，本發明確具產賓 之2用仞值。惟以上之實施例說明，僅為本發明戈 屬技術領域中具有通_ ί 1 fit ^ ^ ^ ^ ^ ^ 以以化，當仍麵 【圖式簡單說明】 第-圖係顯示-習知技術中之工作元件、風扇控制系統與風 扇之功能方塊圖; 200809451According to the embodiment of the present invention, the present invention has a devaluation value of 2 for the guest. However, the above embodiments are only for the purpose of the present invention, and have the meaning of _ ί 1 fit ^ ^ ^ ^ ^ ^ in the technical field, while still [the simple description of the figure] - the system display - the prior art Functional block diagram of working components, fan control system and fan; 200809451
第-圖係顯示另-砂技術+之工作元件、風扇控制系統與 風扇之功能方塊圖; : ~ . " . - - - ... - - ... ... ... * .. _ - , . .- 弟二圖係顯示本發明第一實施例之功能方塊圖； ... . _ ^ - -. \ ' 第四圖係顯示本明第一實施例之風扇控制系統之功能方 • . ' · '； .*-,；· ..........； ' 第五圖係顯示第四圖所對應之電路圖;以及 第六圖係顯示本發明第上實施例之風扇控制系統電齡功能The first-picture shows the functional block diagram of the working element, fan control system and fan of the other-sand technology +; . . . " . - - - ... - - ... ... ... * .. _ - , . . . - The second diagram shows the functional block diagram of the first embodiment of the present invention; ... _ ^ - -. \ ' The fourth diagram shows the function of the fan control system of the first embodiment of the present invention. </ br> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fan control system battery age function
示意®。 【主要元件符號說明】 1、 la 11 11a 12 V 12a 13、13 a 2、 2a 3、 3a 4'· V · 41 43 431 431a 風扇控制糸統 工作元件溫度偵測單元 工作元件功率偵測單元 處理單元 風扇控制電路 工作元件 風扇 — — 国圓 風扇控制系統 工作元件溫度偵測單元 工作元件功率偵測單元 風扇控制電蜂 功率信號傳輸電路 限流元件 200809451Indicates ®. [Description of main component symbols] 1. la 11 11a 12 V 12a 13, 13 a 2, 2a 3, 3a 4'· V · 41 43 431 431a Fan control system working element temperature detecting unit working element power detecting unit processing Unit Fan Control Circuit Working Element Fan - National Circle Fan Control System Working Element Temperature Detection Unit Working Element Power Detection Unit Fan Control Electric Bee Power Signal Transmission Circuit Current Limiting Element 200809451
432 下限溫度比較單元 433 上限溫度比較單元 434 限溫度比較單元 435 控制開關 436::::::、:':::::.::::; 控制閘 437 缓衝電路 438 韻重加法器 439a 類比數位轉換電路 439b 處理單元 439c 數位類比轉換電路 5 工作元件 6 風扇 01 閉路位置 02 ,.,.. 開路位置 G 接地端 SI 工作元件溫度信號 SI， 工作元件功率信號 S2、S3 風扇控制信號 S4 夂工作元件溫度信號 S5 工作元件功率信號 -^ ... ， S6 風扇控制信號 S7 開關控制信號 S7， 功率因子判斷信號 200809451 m SA Λ 第一因子信號 SB - ... .... 第二因子信號 -. * . . · SC 第主因子信號 • · - - -.,.·" 、' ... 工作元件湓度 ΤΓ. 下限參考溫度 :圓 . . . 圓· _ ： T2 上限參考溫度 P ν· .--. 工作元件功率 Pref 參考功率 21432 lower limit temperature comparison unit 433 upper limit temperature comparison unit 434 limit temperature comparison unit 435 control switch 436::::::,: '::::::::::; control gate 437 buffer circuit 438 rhyme adder 439a analog to digital conversion circuit 439b processing unit 439c digital analog conversion circuit 5 working element 6 fan 01 closed circuit position 02, .,.. open position G ground terminal SI working element temperature signal SI, working element power signal S2, S3 fan control signal S4夂 working element temperature signal S5 working element power signal -^ ... , S6 fan control signal S7 switch control signal S7, power factor determination signal 200809451 m SA Λ first factor signal SB - .... second factor Signal -. * . . · SC The main factor signal • · - - -.,.·" , ' ... working element temperature ΤΓ. Lower reference temperature: circle . . . circle · _ : T2 upper reference temperature P ν· .--. Working element power Pref Reference power 21