1304458 •九、發明說明： -【發明所屬之技術領域】 本發明係關於一種鼓風機，尤指一種可發光之鼓風機。 【先前技術】 目前，為滿足廣大電腦用戶之需求，習知電腦之設計 大都已向多元化發展，其外觀形狀及色彩不但具有各式之 -造型設計，例如將機殼設計成透明的，而且内部還配合一 ❿些燈光設計，使電腦更具美感。 惟，電腦内部之燈光一般僅是幾個周邊設備之發光二 極體在點綴’而且只有該等周邊設備運作時發光二極體才 發光，導致電腦内部之燈光效果不是很明顯。為了更好地 散熱，電腦主機或伺服器内部有時會設有鼓風機，不過該 豉風機僅僅是起到散熱作用，對安裝該鼓風機之電腦主機 或祠服裔之外觀視覺效果沒有起到作用。 因疋，實有必要對習知之鼓風機加以改進，以消徐上 鲁述缺失。 【發明内容】 、鑒於以上内容，有必要提供一種發光鼓風機，以便可 以透過其發光效果來增強自纟之美⑤，亦可進一步增強安 裝該發光鼓風機之系統之外觀視覺效果。 ★種發光鼓風機，包括—風扇、—用於收容該風扇之 機成及至j/ -發光凡件，該風扇與該發光元件電性連接， 該風扇可驅動該發光元件發光。 相較於習知技術，蔣：q 士士 π 7將該豉風機上設置該發光元件，透 5 1304458 過，風扇驅動該發光元件發光，不但使該發光鼓風機自身 變侍炫彩奪目，進一步亦使裝設該鼓風機之系統之外觀視 覺效果變得美觀時尚。 【實施方式】 /請一併參閱圖1至圖3,本發明發光鼓風機用於給 一系統（未示出）進行散熱，如電腦主機或伺服器，其較 佺實施方式包括一風扇12、一用於收容該風扇12之機殼 14及兩發光二極體16。該兩發光二極體16可用其他發光 元件來替代，其數量及顏色亦可根據具體需要來設定，數 量至少為一個。 該機殼14之邊緣設有兩相互對稱之連接部18，用於 將該發光鼓風機10固定於該需要散熱之系統中。該兩發光 二極體16設於該機殼14内部之底壁上並分別靠近其中一 連接部18，以免干擾該機殼14内部之風力流動。該機殼 14之底部還設有複數支撐固定該風_ 12之筋條142，該兩 發光一極體16透過穿没於該兩筋條M2中之導線162與該 風扇12之内部電路相連。 圖4為忒發光妓風機之較佳實施方式之電路圖，包 括一轉速控制電路100及一轉速指示電路200。 該轉速控制電路1GG包括-直流電源Vee、—具開關 功月b之電日日體Q及一馬達11〇，該電晶體〇之基極接收一 用於控制該馬達110轉速之轉速控制訊號，該轉速控制訊 號為 PWM ( Pulse Width Modulati〇n， 電晶體Q之集極接該直流電源Vcc，該馬達11〇之電源端 1304458 接該電晶體Q之射極，該馬達110之接地端接地。該風扇 ' 12包括該轉速控制電路100，且該轉速控制電路100設於 該風扇12之内部。 該轉速指示電路200包括一作為濾波裝置之電感L、 一作為控壓裝置之電阻R、一第一齊納二極體D1、一第二 齊納二極體D2及該兩發光二極體16。該電感L之一端接 •該馬達110之電源端，用於接收來自該轉速控制電路1〇〇 馨之指示訊號，另一端經由該電阻R接地。該第一齊納二極 體D1及第二齊納二極體之陰極均接於該電感L與該電 阻R之間，該第一齊納二極體Di及第二齊納二極體D2 之陽極分別連接對應發光二極體16之陽極，該兩發光二極 體16之陰極均接地。該轉速指示電路2〇〇除該兩發光二極 體16以外均設於該風扇12之内部。 該轉速控制電路1〇〇透過該轉速控制訊號來控制該馬 達11〇之轉速，從而控制該風扇12之轉速，該PWM訊號 φ之工作週期（Duty Cycle)與該馬達n〇之轉速成正比關 係。該轉速指示電路200透過控制該兩發光二極體16之發 光狀態來顯示該風扇12之轉速情況。 由於該轉速控制訊號為PWM訊號，設該p WM訊號之 工作週期為D，該直流電源Vcc之電壓為u，則該馬達n〇 之電源端之平均電壓為D*U，當該PWM訊號之工作週期 4大時，則該馬達110之電源端之平均電壓亦增大。透過 該電感L之濾波作用，易知當該馬達11〇之電源端之平均 電壓增大時，經由該電感L上之電流之直流分量亦將變 7 1304458 會 大，則該電阻R上之電壓相應變大。由於該pwM訊號之 •工作週期與該馬们1〇之轉速成正比關係、，即可以得^該 電阻R上之電壓隨著該馬達11G之轉速之增大而增大。/ 其中，該風扇12之轉速分為低速及高速兩檔位，該第 ,一齊納二極體m及第二齊納二極體D2之反向擊穿電壓:逐 遞牦可透過以下方式來選取合適之齊納二極體作為該 -第一齊納二極體！^及第二齊納二極體D2，使其反向擊穿^ 籲電壓滿足電路需求··當該風| 12之轉速達到低速槽位時 (可透過軟體方法設定），利用測量儀器量取電阻r兩端 之電壓值為υι，則選取反向擊穿電壓為U]L之齊納二極體 作為該第一齊納二極體D1 ;當該風扇12之轉速達到高速 檔位時，量取電阻R兩端之電壓值為U2，則選取反向擊 穿電壓為U2之齊納二極體作為該第二齊納二極體D2。 卜該發光鼓風機10工作時，當該風扇12之轉速在低速 範圍至咼速範圍時，該第一齊納二極體D1被反向擊穿， •與第一齊納二極體D1相連之發光二極體16發光；當該風 扇12之轉速達到高速時，該第一齊納二極體Dl、第二齊 納二極體D2均被反向擊穿，該兩發光二極體16均發光。 該兩發光二極體16發光時會使發光鼓風機1〇變得光 彩絢麗，並進一步使安裝該發光鼓風機1〇之系統之外觀視 覺效果變得美觀時尚，為增強視覺效果，該機殼14之底部 或其他部分亦可用透明材料設計，該兩發光二極體16之顏 色亦可根據需要來搭配設計。 根據該兩發光二極體16之發光狀態，可以透過肉眼直 8 1304458 •接觀察發光鼓風機ι〇本身就能監測其轉速情況，十分方 便，該兩發《一極H 16之發光狀態可根據實⑤需要來設 定，不僅限於上述確定之方式。 如果不而要監測該發光鼓風機1〇之轉速，則該發光鼓 風機10之電路僅需該轉速控制電路1〇〇及該兩發光二極體 16’並將該兩發光二極體16之陽極接該直流電源Vcc，陰 -極接地即可，這裡不再給出具體之電路圖。 • 练上所述，本發明符合發明專利要件，爰依法提出專 利申请。惟，以上所述者僅為本發明之較佳實施方式，舉 凡热悉本案技藝之人士，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内。 【圖式簡單說明】 圖1係本發明發光鼓風機之較佳實施方式之立體圖。 圖2係圖1之局部剖視圖。 圖3係圖1之仰視圖。 _ ® 4係本發明發紐風機之較佳實施方狀電路圖。 【主要元件符號說明】1304458 • Nine, invention description: - [Technical field to which the invention pertains] The present invention relates to a blower, and more particularly to an illuminating blower. [Prior Art] At present, in order to meet the needs of the majority of computer users, the design of the computer has been diversified. Its appearance and color not only have various styles, such as designing the case to be transparent, and The interior is also equipped with a number of lighting designs to make the computer more aesthetic. However, the light inside the computer is generally only a few LEDs of peripheral devices embellished' and only the peripheral devices operate, the light-emitting diodes emit light, resulting in the lighting effect inside the computer is not very obvious. In order to better dissipate heat, a blower may be provided inside the host computer or the server, but the blower fan only serves to dissipate heat, and does not contribute to the visual effect of the computer mainframe or the squatter who installed the blower. Because of this, it is necessary to improve the conventional blower to eliminate the lack of rhetoric. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a light-emitting blower so as to enhance the self-contained beauty through its luminous effect, and further enhance the visual appearance of the system in which the luminous blower is installed. A type of illuminating blower includes a fan, a unit for accommodating the fan, and a illuminating unit. The fan is electrically connected to the illuminating element, and the fan can drive the illuminating element to emit light. Compared with the conventional technology, Jiang: q Shishi π 7 set the light-emitting element on the fan, through 5 1304458, the fan drives the light-emitting element to illuminate, not only makes the light-emitting blower itself become dazzling, further The visual appearance of the system in which the blower is installed becomes aesthetically pleasing. [Embodiment] / Please refer to FIG. 1 to FIG. 3 together, the luminous blower of the present invention is used for dissipating heat to a system (not shown), such as a computer host or a server, and a relatively simple implementation includes a fan 12, a The casing 14 and the two LEDs 16 for accommodating the fan 12 are used. The two light-emitting diodes 16 can be replaced by other light-emitting elements, and the number and color thereof can be set according to specific needs, and the number is at least one. The edge of the casing 14 is provided with two mutually symmetrical connecting portions 18 for fixing the luminous blower 10 in the system requiring heat dissipation. The two LEDs 16 are disposed on the bottom wall of the casing 14 and are respectively adjacent to one of the connecting portions 18 so as not to interfere with the wind flow inside the casing 14. The bottom of the casing 14 is further provided with a plurality of ribs 142 for supporting the wind -12, and the two light-emitting diodes 16 are connected to the internal circuit of the fan 12 through the wires 162 worn in the two ribs M2. 4 is a circuit diagram of a preferred embodiment of a xenon-emitting xenon fan, including a speed control circuit 100 and a speed indicating circuit 200. The speed control circuit 1GG includes a DC power source Vee, a battery day Q with a switching power month b, and a motor 11A. The base of the transistor 接收 receives a speed control signal for controlling the speed of the motor 110. The speed control signal is PWM (Pulse Width Modulati〇n, the collector of the transistor Q is connected to the DC power source Vcc, the power terminal 1304458 of the motor 11 is connected to the emitter of the transistor Q, and the ground end of the motor 110 is grounded. The fan '12 includes the rotation speed control circuit 100, and the rotation speed control circuit 100 is disposed inside the fan 12. The rotation speed indicating circuit 200 includes an inductance L as a filtering device, a resistance R as a voltage control device, and a first a Zener diode D1, a second Zener diode D2 and the two LEDs 16. One of the inductors L is terminated by a power terminal of the motor 110 for receiving from the speed control circuit 1 The other end is connected to the ground via the resistor R. The cathodes of the first Zener diode D1 and the second Zener diode are connected between the inductor L and the resistor R. The anode of the nano-diode Di and the second Zener diode D2 The anodes of the corresponding light-emitting diodes 16 are respectively connected to the cathodes of the two LEDs 16. The rotation indicating circuit 2 is disposed inside the fan 12 except for the two LEDs 16. The control circuit 1 controls the rotation speed of the motor 11 by the rotation speed control signal, thereby controlling the rotation speed of the fan 12. The duty cycle of the PWM signal φ is proportional to the rotation speed of the motor n〇. The rotation speed indicating circuit 200 displays the rotation speed of the fan 12 by controlling the lighting state of the two LEDs 16. Since the rotation speed control signal is a PWM signal, the duty cycle of the p WM signal is D, and the DC power source Vcc When the voltage is u, the average voltage of the power terminal of the motor is D*U. When the duty cycle of the PWM signal is 4, the average voltage of the power terminal of the motor 110 also increases. Filtering, it is easy to know that when the average voltage of the power supply terminal of the motor 11 is increased, the DC component of the current passing through the inductor L will also become 7 1304458, and the voltage on the resistor R will be correspondingly larger. The pwM The duty cycle of the signal is proportional to the speed of the horse, that is, the voltage on the resistor R increases as the rotational speed of the motor 11G increases. / wherein the speed of the fan 12 Divided into low speed and high speed two gears, the first, the Zener diode m and the second Zener diode D2 reverse breakdown voltage: the transfer can be selected by the following way to select the appropriate Zener diode As the first Zener diode!^ and the second Zener diode D2, the reverse breakdown voltage is satisfied by the circuit voltage. When the speed of the wind|12 reaches the low speed slot ( Through the software method setting, using the measuring instrument to measure the voltage value across the resistor r is υι, then select the Zener diode with the reverse breakdown voltage of U]L as the first Zener diode D1; When the speed of the fan 12 reaches the high speed gear position, the voltage value across the resistor R is U2, and the Zener diode with the reverse breakdown voltage U2 is selected as the second Zener diode D2. When the illuminating blower 10 is in operation, when the rotational speed of the fan 12 is in the low speed range to the idle range, the first Zener diode D1 is reversely broken, and is connected to the first Zener diode D1. The light emitting diode 16 emits light; when the rotating speed of the fan 12 reaches a high speed, the first Zener diode D1 and the second Zener diode D2 are reversely reversed, and the two LEDs 16 are both reversed. Glowing. When the two light-emitting diodes 16 emit light, the light-emitting blower 1 〇 〇 , , , , , , , , 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光 发光The bottom or other parts can also be designed with a transparent material, and the colors of the two LEDs 16 can also be matched as needed. According to the light-emitting state of the two light-emitting diodes 16, it can be transmitted through the naked eye 8 1304458. It is very convenient to observe the rotational speed of the light-emitting blower itself, and the two-state "one-pole H 16 light-emitting state can be based on reality. 5 needs to be set, not limited to the above determined method. If the speed of the light-emitting blower is not to be monitored, the circuit of the light-emitting blower 10 only needs the speed control circuit 1 and the two light-emitting diodes 16' and the anodes of the two light-emitting diodes 16 are connected. The DC power supply Vcc, the cathode-pole is grounded, and the specific circuit diagram is not given here. • In practice, the present invention complies with the patent requirements of the invention and submits a patent application in accordance with the law. However, the above description is only the preferred embodiment of the present invention, and those skilled in the art will be able to cover the modifications and variations of the present invention within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a preferred embodiment of a luminous blower of the present invention. Figure 2 is a partial cross-sectional view of Figure 1. Figure 3 is a bottom view of Figure 1. _ ® 4 is a preferred embodiment circuit diagram of the fan of the present invention. [Main component symbol description]
風扇 12 筋條 142 導線 162 轉速控制電路 100 Q 發光鼓風機 10 機殼 14 發光二極體 16 連接部 18 直流電源 Vcc 電晶體 9 200 1304458 « 馬達 110 轉速指不電路 電感 L 電阻 第一齊納二極體 D1 第二齊納二極體 R D2Fan 12 rib 142 wire 162 speed control circuit 100 Q light blower 10 casing 14 light-emitting diode 16 connection part 18 DC power supply Vcc transistor 9 200 1304458 « Motor 110 speed means no circuit inductance L resistance first Zener diode Body D1 second Zener diode R D2
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