200911102 •九、發明說明： 【發明所屬之技術領域】 尤其涉及一種應用於 本發明涉及一種風扇冷卻系統 各種電子設備之風扇冷卻系統。 【先前技術】 目前’電子設備關機後需 ^ t斗 只對電子設備内之熱源冷 部降&，以保護熱源不受高溫損壞 杳八机 & 设同日守延長熱源之使用 可"卩。一般，電子設備關機後， , 扪用風扇對熱源之冷卻之 過耘中，對熱源之冷卻風扇設定— |之 1- ^ ^ 丨―疋之電壓值使風扇以 I疋之轉速對熱源進行冷卻。 1然而’湘恒定之電壓㈣風相熱料行冷卻時， 恒定之較高風_熱源冷卻，保輯熱源急速冷 ::會降低熱源之使用壽命。若使用一恒定之較低風 2熱源冷卻：保護熱源之同時又無法在設定時間内對熱 機到好之冷卻效果，導致關機時間過長，不方便下次開 二且：扇之轉速不易控制於既能快速冷卻風扇， δ 豆令部時間較短之範圍内。 【發明内容】 有馨於此，有必要招彳妓 ^ m* 受故仏—種能同時保證延長熱源之使 用哥命又較快冷卻熱源之風扇冷卻系統。 種風扇冷部系統’其利用-風扇對熱源進行冷卻。 述風扇冷部系統包括—控制裝置，所述控制裝置内設定 至少兩個驅動電壓。所述至+ 王乂兩驅動電壓包括一第一驅動 壓及—第二驅動電壓，所述第-驅動電壓小於所述第二 200911102 驅動電壓。所述控制裝置依次利用所述第一驅動電壓、所 述第二驅動電壓以控制風扇對熱源進行冷卻。 相較於先前技術，所述風扇冷卻系統利用不同之驅動 電壓驅動風扇以冷卻電子設備關機後熱源，於延長了埶源 之使用壽命之㈣㈣了冷卻速度較快，冷料間較短， 達到平衡優化之效果。 【實施方式】 下面將結合附圖對本發明實施例作進一步之詳細說 明。 ^閱圖1丨為本發明第—實施例之風扇冷卻系統 10。所述風扇冷卻系統10包括—風摩“2及—控 14。所述控制裝置14包括一第一時間單元一 間單元144、一第一驅動單元146、—第二驅動單元—^ 及·-控制單元149。所述控制單元149分別與所述第—日士 間单兀！42、所述第二時間單元144、所述第—驅動單: 146及所。述第二驅動單元148電性連接。風扇η分別 -驅動單元146及第二驅動單元148電性連接。所述風 冷卻系統ίο於電子設備關機時利用風扇12對電子設羽 之-熱源18進行冷卻。熱源18為電子設備關機後：： 大難以立即散熱之裝置，如電腦之中央處理器t P職ssing Unit，CPU) '投影機之光源等關機難=ral 裝置。 雖成熟之 第時間單元142内設定一第一冷卻時間，所述第— 200911102 時間單元144内設定一第二冷卻時間。所述設定之第一冷 卻日守間及第二冷卻時間可於出廠前由廠商預先設定，也可 於電子設備使用過程中由用戶設定，第—冷卻時間與第二 冷卻％間之和為預定冷卻時間。第一冷卻時間與第二冷卻 時間可以設為相同，第一冷卻時間也可小於或大於第二冷 部時間。本實施例中，第—冷卻時間與第二冷卻時間相同 且均為50秒（50S)。 第一驅動單兀146内設定一第一驅動電壓，所述第一 驅動電f為第一時間單元i 4 2設定之時間内風扇丄2之工作 電壓。第-驅動電壓值之範圍於風扇之正常卫作電壓範圍 内均可。本實施例中，第一驅動電壓為6伏特（6v)。 第二驅動單元148内設定一第二驅動電壓，所述第二 驅動電壓為第二時間單元144設定之時間内風扇之工作 電·遷。第二驅動電壓大於第—驅動電塵。第二驅動電壓之 ，圍在風扇！2之正常工作電壓範圍内均可。本實施例中， 第二驅動電壓為10伏特（10 V)。 冷卻過程中，採用較高電壓驅動風扇12對熱源 行急速冷卻會影響熱源18之使用壽命甚至損壞熱源H 為保證熱源18冷卻過程中不影響熱源18之使用壽丄，… 置風扇12之第一驅動電壓小於第二 可"卩，设 12先於-較低之電壓下對熱源料卻=二 -冷卻時間’然後再利用一較高電壓驅動風扇 ： 18進行冷卻。能於不影響熱源18使用壽命之俨下=/'、 之對熱源18進行冷卻，達到平衡優化之效果。 又决 200911102 、士控制單元149根據第一時間單元142内設定之第一冷 伸t間及Η第-冷部時間相對應之第一驅動電壓來控制風 扇12在冷部時間之前5〇s之時間内，通過Gy之電壓驅動 風扇12以對熱源18進行冷卻。第—冷卻時間娜過後， ㈣單元U9又根據第二時間單元144内設定之第二冷卻 與第二冷卻時間相對應之第二驅動電壓來控制風扇 /冷部時間之後5〇s之時間内，通過ι〇ν之電壓驅動風 :、广熱源18進行冷卻。即風扇冷卻系統1。在⑽ 二日寸間内’分為兩個時間階段通過不同之驅動電壓驅動 風扇12對熱源18進行冷卻。 動 2Π 參閱圖2 ’其為本發明第二實施例之風扇冷卻系统 :所述風扇冷卻系統20包括一風扇22及一控 不.同制24與上述第-實施例之控制裝置14之 -第三日^!^(之控制單元不同，且控制裝置24還包括 設定46及—第三驅動單元施。控制裝置24 三二：早述第三時間單…設定-第 壓。 弟二驅動單元266内設定一第三驅動電 間可冷卻時間、第二冷卻時間及第三冷卻時 程二商預先設定，也可於電子設備使用過 定冷卻=:;::;:ΓΓΓ冷卻時間之和為預 間可以設為相同，也可〜：部時間及第三冷卻時 卻時間、第二冷卻==同。本實施例中，第-冷 夺間及弟二冷卻時間均相同且為40秒 200911102 • (40S)。 • 所述弟一驅動電壓、笼-聰命j带两·^竹 〜r心π芦動電壓及第三驅動電壓設 疋& ;虫羽22之正常工作電壓範圍内均可，且第一軀 動電壓小於第二驅動電壓， " 厭士眘&弟一㈣電壓小於第三驅動電 本實J中所述第一驅動電壓、第二驅動電壓、第-驅動電壓分別為6V、8V、1{)v。 弟二 、…所述控制單元248分別與所述第—時間單& 述第二時間單元144、 二 。一 動單元146、所述第1動第;：=早70 246、所述第一驅 遍電性連接。風戶所述第三驅動單元 几扇22刀別與第一驅動單元146、 動單元148及第二够叙留_+ 弟一驅 系統20於電子動機早日;V66電性連接。所述風扇冷卻 為、s、 備關機時利用風扇22對電子設備内之一 熱源28進行冷卻。轨源7 ^ 以fr g卩埤妯 ......為電子5又備關機後熱量較大難200911102 • Nine inventions: [Technical field to which the invention pertains] In particular, the present invention relates to a fan cooling system for various electronic devices of a fan cooling system. [Prior Art] At present, after the electronic equipment is turned off, it is necessary to reduce the temperature of the heat source in the electronic equipment only to protect the heat source from high temperature damage. The equipment is used to extend the heat source. . Generally, after the electronic device is turned off, the fan is used to cool the heat source, and the cooling fan of the heat source is set to a voltage value of 1-^^ 丨-疋, so that the fan cools the heat source at a speed of I疋. . 1 However, the constant voltage (4) of the wind phase cooling, constant high wind _ heat source cooling, protect the heat source rapid cooling :: will reduce the service life of the heat source. If a constant low-wind 2 heat source is used for cooling: while protecting the heat source, the cooling effect of the heat engine can not be achieved within the set time, resulting in a long shutdown time, which is inconvenient to open next time and the fan speed is not easy to control. It can quickly cool the fan, and the δ bean order time is shorter. [Summary of the Invention] It is necessary to recruit 彳妓 m ^ m* 受 仏 种 种 种 种 种 种 种 种 种 种 m m m m m m m m m m m m m m m m m m m m A fan cold section system' uses a fan to cool a heat source. The fan cold section system includes a control device in which at least two drive voltages are set. The driving voltage to the + 乂 includes a first driving voltage and a second driving voltage, and the first driving voltage is smaller than the driving voltage of the second 200911102. The control device sequentially uses the first driving voltage and the second driving voltage to control the fan to cool the heat source. Compared with the prior art, the fan cooling system uses different driving voltages to drive the fan to cool the heat source after the electronic device is turned off, thereby prolonging the service life of the power source. (4) (4) The cooling speed is faster, the cold material is shorter, and the balance is reached. Optimize the effect. [Embodiment] Hereinafter, embodiments of the present invention will be further described in detail with reference to the accompanying drawings. 1 is a fan cooling system 10 of the first embodiment of the present invention. The fan cooling system 10 includes a wind motor "2" and a control unit 14. The control device 14 includes a first time unit, a unit 144, a first driving unit 146, a second driving unit, and a The control unit 149. The control unit 149 is electrically connected to the first-day singer! 42, the second time unit 144, the first-drive single: 146, and the second driving unit 148. The fan η is separately electrically connected to the driving unit 146 and the second driving unit 148. The air cooling system uses the fan 12 to cool the electronic heat source 18 when the electronic device is turned off. The heat source 18 is powered off by the electronic device. After:: A device that is difficult to dissipate immediately, such as the central processing unit of the computer, t ssing unit, CPU) 'The light source of the projector is difficult to shut down = ral device. Although the first time is set in the mature time unit 142, a first cooling time is set. The second cooling time is set in the time unit 144. The first cooling day and the second cooling time of the setting may be preset by the manufacturer before leaving the factory, or may be used during the use of the electronic device. User setting The sum of the first cooling time and the second cooling % is a predetermined cooling time. The first cooling time and the second cooling time may be set to be the same, and the first cooling time may be smaller or larger than the second cold time. In the example, the first cooling time is the same as the second cooling time and is 50 seconds (50S). A first driving voltage is set in the first driving unit 146, and the first driving power f is the first time unit i 4 2 The working voltage of the fan 丄2 in the set time. The range of the first driving voltage can be within the normal operating voltage range of the fan. In this embodiment, the first driving voltage is 6 volts (6 volts). A second driving voltage is set in the unit 148, and the second driving voltage is the working current of the fan in the time set by the second time unit 144. The second driving voltage is greater than the first driving electric dust. It can be in the normal working voltage range of the fan! 2. In this embodiment, the second driving voltage is 10 volts (10 V). During the cooling process, using the higher voltage to drive the fan 12 to rapidly cool the heat source will affect the heat source. 18 The service life even damages the heat source H. To ensure that the heat source 18 does not affect the use of the heat source 18 during the cooling process, the first driving voltage of the fan 12 is less than the second one, and the setting of 12 is lower than the lower voltage. The heat source material = 2 - cooling time 'and then use a higher voltage to drive the fan: 18 for cooling. The heat source 18 can be cooled without affecting the service life of the heat source 18 = /, to achieve the balance optimization effect Further, the 200911102, the control unit 149 controls the fan 12 5 s before the cold time according to the first driving voltage corresponding to the first cold extension t and the first cold portion time set in the first time unit 142. During the time, the fan 12 is driven by the voltage of Gy to cool the heat source 18. After the first cooling time, the unit U9 controls the fan/cold time after 5 ss according to the second driving voltage set in the second time unit 144 and the second driving voltage corresponding to the second cooling time. The wind is driven by the voltage of ι〇ν: and the heat source 18 is cooled. That is, the fan cooling system 1. The heat source 18 is cooled by a different driving voltage driving fan 12 in two (10) two-day intervals. Referring to FIG. 2, which is a fan cooling system according to a second embodiment of the present invention, the fan cooling system 20 includes a fan 22 and a control device 24 and the control device 14 of the above-described first embodiment - Three days ^! ^ (The control unit is different, and the control device 24 also includes the setting 46 and the third driving unit. The control device 24 32: the third time list...the setting - the first pressure. The second driving unit 266 The setting of a third driving electric room cooling time, the second cooling time and the third cooling time period are pre-set, and the cooling of the electronic device can also be used for the predetermined cooling ==;::;: ΓΓΓ cooling time is The interval may be the same, or may be:: part time and third cooling time, second cooling == the same. In this embodiment, the first-cold and the second cooling time are the same and 40 seconds 200911102 • (40S). • The younger one driving voltage, the cage-constrained j-band, the two-bamboo-r-heart π-wamp voltage and the third driving voltage setting 疋& And the first body voltage is less than the second driving voltage, "厌士慎&一一(四)电压A third driving voltage to the first driver circuit in the present real-J, the second driving voltage, - of driving voltages of 6V, 8V, 1 {) v. The second control unit 248 is respectively associated with the first time unit & the second time unit 144, two. The first unit 146, the first unit:; = 70 246, the first drive is electrically connected. The third driving unit of the wind farm has a plurality of 22 blades and the first driving unit 146, the moving unit 148 and the second enough to hold the electronic drive, and the V66 is electrically connected. The fan is cooled to s, and the fan 22 is used to cool a heat source 28 in the electronic device when the device is turned off. The rail source 7 ^ is fr g卩埤妯 ......
Pr〇 / ，'、、之裝置，如電腦之中央處理器（central ^=slng unit，CPU)、投影機之光源等關機後較難散熱之 控制單元根據第—時間單元m 部時間40S及I筮一久欠+ ^ 令The device of Pr〇/ , ',, such as the central processing unit of the computer (central ^=slng unit, CPU), the light source of the projector, etc., which is more difficult to dissipate after shutdown, according to the first time unit m time 40S and I For a long time owe + ^ order
驅動風戶99 冷部時間相對應之第一驅動電壓6V 驅動風扇22以對熱源28 . 99 ^ 迴仃冷部。於弟一冷卻時間40s 144 J #完成後’控制單元鳩又根據第二時間單元 144内設定之第二冷卻 早兀 —㈣雷颅w , 與弟二時間相對應之第 ;t 驅動風扇22以對熱源28進行冷卻。控制 根據第三時間單元246内設定之第三時間_及 、-㈣相對應之第三驅動電壓1QV驅動風扇22以對 10 200911102 • 熱源28進行冷卻。 .風扇冷卻系統20於12G秒之時間内，分為三個 段通過二個不同之電壓驅動爾戶 白 电動風屬22對熱源28進行冷 可以理解，第一實施例之風扇冷卻系統10及第二實r 例之風扇冷卻系統20中之冷卻時間之設定 定不僅僅限於實施例中所列舉之數字，其他複數 不同電壓設置均可。 才Π &之 可以理解，所述風扇冷卻系統也可分N個時間段對風 扇進打冷部。風扇冷卻系統包括N個驅動單元及N 單元，N個驅動單元分別設定_驅動電壓，n個時^ 兀分別相應設定N個冷卻時間。則固驅動電麼分 -驅動電壓、-第二驅動電壓、—第三驅動電壓— 第N驅動電壓。其中，為自然數。所述第—驅動電： 於，所述第二驅動電壓，所述第：驅動電壓小於所述第：^ 動電壓，…，所述第㈣驅動電壓小於所述第 壓。所述控制裝置依次利用所述第—驅動電壓' 驅動電壓、所述第三驅動電壓、...及所述第N驅動電= 控制風扇對熱源進行冷卻。每—驅動電壓之冷卻時= 相同，也可不相同。The first drive voltage 6V corresponding to the cold section time of the wind generator is driven to drive the fan 22 to the heat source 28. 99 ^ back to the cold section. Yu Di-cooling time 40s 144 J # After the completion of the 'control unit 鸠 according to the second time unit 144 set the second cooling early 兀 - (four) Lei cranial w, the second corresponding to the second time; t drive fan 22 to The heat source 28 is cooled. Control The fan 22 is driven to cool the 10 200911102 • heat source 28 according to the third drive voltage 1QV corresponding to the third time _ and - (d) set in the third time unit 246. The fan cooling system 20 can be understood by dividing the heat source 28 into two segments by two different voltages in 12G seconds. The fan cooling system 10 of the first embodiment is The setting of the cooling time in the fan cooling system 20 of the second embodiment is not limited to the numbers listed in the embodiment, and other plural different voltage settings may be used. It can be understood that the fan cooling system can also enter the cold portion of the fan in N time periods. The fan cooling system includes N driving units and N units, and the N driving units respectively set the _ driving voltage, and the n cooling times are respectively set for n times. Then, the solid driving power is divided into - driving voltage, - second driving voltage, - third driving voltage - Nth driving voltage. Among them, it is a natural number. The first driving voltage: the second driving voltage, the first driving voltage is less than the first driving voltage, ..., the fourth (fourth) driving voltage is smaller than the first voltage. The control device sequentially cools the heat source by using the first driving voltage 'driving voltage, the third driving voltage, ... and the Nth driving power=control fan. The cooling time of each drive voltage = the same or different.
相較於先前技術，所述之風扇冷卻系統利用不同 動電壓驅動風扇以冷卻電子設備關機後之熱源，於正 熱源之使用壽命之同時保證了冷卻速度較^'冷卻=二 短，達到平衡優化之效果。 ' s X 綜上所述，本發明確已符合發明專利之要 ^ rK. 11 200911102 k出專㈣請。m，以上所述者僅為本發明之 式，本發明之範圍並不以上述實施方式為 Ό 案技藝之人士援依本發明之精神所作之、凡熟悉本 皆應涵蓋於以下申請專利範圍内。 m 變化， 【圖式簡單說明1 圖1本發明第一實施例之風屬A r圖2本發明第二實施例之風屬；I你系統模組圖。 f主要元件符號說明、 7 p系統模組圖。 風扇冷卻系統10、2〇 控制裝置 U、Μ 第二時間單元144 第—驅動單元148 熱源 18, 28 _.一 一 —.動早兀266 風屬 第 控制軍- μ 率疋 149、248 弟三時間單元246 ^ 12、 22 f〜時間單元142 驅動單元146 12Compared with the prior art, the fan cooling system uses different dynamic voltages to drive the fan to cool the heat source after the electronic device is turned off, and ensures the cooling speed is shorter than the cooling rate of the positive heat source, and the balance is optimized. The effect. ' s X In summary, the present invention has indeed met the requirements of the invention patent ^ rK. 11 200911102 k out of the special (four) please. The above description is only for the purpose of the present invention, and the scope of the present invention is not limited by the above-described embodiments, and those skilled in the art are entitled to the spirit of the present invention. . m change, [schematic description of the drawing 1] Fig. 1 is a wind type of the first embodiment of the present invention. Fig. 2 is a wind type of the second embodiment of the present invention; f main component symbol description, 7 p system module diagram. Fan cooling system 10, 2〇 control device U, Μ second time unit 144 first-drive unit 148 heat source 18, 28 _. one-one---------------------------------------------------------------------------------------------------------- Time unit 246 ^ 12, 22 f ~ time unit 142 drive unit 146 12