M334381 八、新型說明： 【新型所屬之技術領域】 本創作係關於一種電源供應器，尤指一種利用脈寬, 變技術控制内設散熱裝置之電源供應器。 【先前技術】 按電源供應器為個人電腦不可或缺的主要設備，隨著 個人電腦的工作頻率愈來愈高，主機内部產生的廢熱問題 亦曰盈嚴重’而目前個人電腦為解決散熱問題所提出的因 應方案，除了整合在電源供應器上的風扇外，主機板上的 主要元件，例如中央處理器（CPU) '高速顯示卡、記憶體 核組等均設有獨立的散熱裝置，該等散熱裝置係各自對依 附的元件進行散熱，而電源供應器上的風扇則負責主機内 外的空氣對流，其重要性更是不可小覷。且隨著個人電腦 軟硬體的不斷升級，其對於電源種類的需求亦日趨多元， 此種狀況使得電源供應器内的電源電路更趨複雜，其本身 的工作溫度亦日漸提高，在此狀況下，電源供應器上的風 扇必須更有效率的運作，意即其必須因應電源供應器内外 的溫度變化調整其轉速，一般電源供應器若採用基本型風 扇係採取類比方式來控制供應予風扇的電壓高低，以調 正其轉速，但此種類比方式在調整電壓時將產生較大的電 力損耗而有待改進。 【新型内容】 M334381 由上述可知， 電源供應器不論對本身或對依附的M334381 VIII. New Description: [New Technology Field] This creation is about a power supply, especially a power supply that uses a pulse width and variable technology to control the built-in heat sink. [Prior Art] According to the power supply, the main equipment that is indispensable for personal computers, as the working frequency of personal computers becomes higher and higher, the problem of waste heat generated inside the mainframes is also serious. The current personal computers solve the problem of heat dissipation. The proposed solution, in addition to the fan integrated on the power supply, the main components on the motherboard, such as the central processing unit (CPU) 'high-speed display card, memory core group, etc. are equipped with independent heat sinks, these The heat sinks each dissipate heat to the attached components, and the fans on the power supply are responsible for air convection inside and outside the mainframe, and the importance is not to be underestimated. With the continuous upgrading of PC software and hardware, the demand for power types is becoming more and more diversified. This situation makes the power supply circuit in the power supply more complicated, and its own operating temperature is also increasing. Under this condition. The fan on the power supply must operate more efficiently, that is, it must adjust its speed in response to temperature changes inside and outside the power supply. Generally, the basic power supply adopts a basic type of fan to control the voltage supplied to the fan. High and low, to adjust its speed, but this kind of ratio method will produce large power loss when adjusting the voltage and needs to be improved. [New content] M334381 It can be seen from the above that the power supply is attached to itself or to the attached
解決方案。 母或對依附的電腦 色’但其在風扇轉 討，並謀求可行的 因此，本創作主要目的在提供一種具脈寬調變式散熱solution. Mother or the computer color attached to it, but it is transferred to the fan and seeks to be feasible. Therefore, the main purpose of this creation is to provide a pulse width modulation heat dissipation.
電源供應器的散熱效率及減少電力損耗。 為達成前述目的採取的主要技術手段係令前述電源供 應器包括有： 一機殼； 一電源電路，係設於前述機殼内； 一散熱片’係位於前述機殼内，且設於電源電路上； 一風扇，係設於前述機殼上，使機殼内外空氣流通； 一溫度感測器，用以感測散熱片的溫度； 一脈寬調變控制電路，係分別與前述溫度感測器及風 扇連接； 前述脈寬調變控制電路係透過溫度感測器檢出散熱片 溫度，據以調變其輸出至風扇的訊號脈寬，而調整風扇轉 速，藉此可使電源供應器上的散熱裝置運作更具效率，且 由於採用脈寬調變技術調整風扇轉速，而可有效減少電力 損耗。 【實施方式】 4 M334381 有關本創作一較佳實施例，首先請參閱第一圖所示， 為一電源供應器的外觀圖，主要係在一機殼（1〇)内設有至 少一電路板（20)，而在機殼（1〇)上設有至少一風扇（3〇);其 中：該電路板（20)上至少建構一電源電路（通常是將交流電 源轉換為直流電源）及一脈寬調變控制電路，必須強調的是 :該脈寬調變控制電路與交換式電源供應器中的脈寬調變 電路無關，在此應用場合中，該脈寬調變控制電路係用以 調整前述風扇（30)之轉速。 又機殼（10)内進一步設有至少一組散熱片（40)，散熱 片（40)係用以對電源電路中的主要元件進行散熱。而為掌 握機设（1 0)内的溫度狀況，利用一溫度感測器（本圖中未示 )以感測散熱片（40)的溫度，該溫度感測器感測之溫度值將 轉換為電壓值，提供給前述脈寬調變控制電路作為調整驅 動電壓的依據。 請參閱第二圖所示，係前述脈寬調變控制電路的方塊 圖，主要係由一脈寬調變控制器(5〇)為核心、，該脈寬調變 控制器（5G)的-輸人端係與前述溫度感測器（51)的輸出端 連接’又脈寬調變控制器（50)輸出端係連接風扇（30)，於 本實施例中，該風扇（3Q)係由—馬達驅動電路（31)及一風 扇馬達阳)組成，該馬達驅動電路（31)之輸人端係與脈寬 调變控制器（5 0)的輸出端逵技 扣而連接，馬達驅動電路（31)之輸出 端除與風扇馬達（32)連接外，亦連 z 』逆接至脈寬调變控制器 (50)的回授端，供脈寬調變 為調節輸出脈寬的依據。心（5〇)羊握負載狀況，作 M334381 由上述說明可瞭解本創作一較佳實施例的具體技術内 容’至於其工作方式詳如以下所述： 當本創作之電源供應器安裝至電腦主機，且電腦開機 後’電源供應器上的風扇（3 〇)即開始運轉，以便將電腦主 機内的熱空氣向外抽出，當氣流通過電源供應器的機殼 (10)内部時，亦同時將機殼（1〇)内的熱空氣向外帶出，在 此狀況下’溫度感測器感測到散熱片（4〇)的溫度，適足反 應出風扇（30)的散熱效率，若散熱效果不佳，可以加寬輸 出訊號之脈波寬度（如第三圖所示），以調高風扇（3〇)轉速 增加出風量，若溫度低於一 定標準以下，可縮小輸出訊號 之脈波寬度以調低風扇（3 〇)轉速而節約能源。 再者，由於本創作之電源供應器係採用溫度感測器配The heat dissipation efficiency of the power supply and the reduction of power loss. The main technical means for achieving the foregoing purpose is that the power supply device includes: a casing; a power circuit disposed in the casing; a heat sink 'located in the casing and disposed in the power circuit a fan is disposed on the casing to allow air to circulate inside and outside the casing; a temperature sensor for sensing the temperature of the heat sink; and a pulse width modulation control circuit respectively for sensing the temperature And the fan connection; the pulse width modulation control circuit detects the temperature of the heat sink through the temperature sensor, thereby adjusting the signal pulse width of the output to the fan, and adjusting the fan speed, thereby enabling the power supply to be on the power supply The heat sink operates more efficiently, and the power consumption is reduced by adjusting the fan speed using pulse width modulation technology. [Embodiment] 4 M334381 For a preferred embodiment of the present invention, first, as shown in the first figure, an external view of a power supply is mainly provided with at least one circuit board in a casing (1 〇). (20), wherein at least one fan (3〇) is disposed on the casing (1〇); wherein: the circuit board (20) is constructed with at least one power circuit (usually converting AC power to DC power) and The pulse width modulation control circuit must emphasize that the pulse width modulation control circuit is independent of the pulse width modulation circuit in the switching power supply. In this application, the pulse width modulation control circuit is used. To adjust the speed of the aforementioned fan (30). Further, at least one set of heat sinks (40) is further disposed in the casing (10), and the heat sink (40) is used for dissipating heat from main components in the power circuit. In order to grasp the temperature condition in the device (10), a temperature sensor (not shown in the figure) is used to sense the temperature of the heat sink (40), and the temperature value sensed by the temperature sensor will be converted. For the voltage value, the aforementioned pulse width modulation control circuit is provided as a basis for adjusting the driving voltage. Please refer to the second figure, which is a block diagram of the aforementioned pulse width modulation control circuit, which is mainly composed of a pulse width modulation controller (5〇), and the pulse width modulation controller (5G)- The input end is connected to the output end of the temperature sensor (51), and the output of the pulse width modulation controller (50) is connected to the fan (30). In this embodiment, the fan (3Q) is a motor drive circuit (31) and a fan motor (yang), the input end of the motor drive circuit (31) is connected to the output end of the pulse width modulation controller (50), and the motor drive circuit The output end of (31) is connected to the fan motor (32), and is also connected to the feedback end of the pulse width modulation controller (50) for the pulse width adjustment to adjust the output pulse width. Heart (5〇) sheep holding the load condition, as M334381 The above description can be used to understand the specific technical content of a preferred embodiment of the present invention. As for the working mode, the following is as follows: When the power supply of the present invention is installed to the host computer And after the computer is turned on, the fan (3 〇) on the power supply starts to run out, so that the hot air inside the computer main unit can be pulled out. When the airflow passes through the inside of the power supply case (10), it will also be The hot air inside the casing (1〇) is taken out outwards. Under this condition, the temperature sensor senses the temperature of the heat sink (4〇), which is sufficient to reflect the heat dissipation efficiency of the fan (30). Poor effect, you can widen the pulse width of the output signal (as shown in the third figure), increase the fan (3〇) speed to increase the air volume. If the temperature is lower than a certain standard, the pulse of the output signal can be reduced. The width saves energy by turning down the fan (3 〇) speed. Furthermore, since the power supply of this creation is based on a temperature sensor
用電效率，減少電力無謂消耗。 【圖式簡單說明】 第圖·係本創作之外觀圖。 第一圖··係本創作之電路方塊圖。 第三圖：係本創作之工作波形圖。 【主要元件符號說明】 (1〇)機殼 (30)風扇 (32)風扇馬達 (50)脈寬調變控制器 (20)電路板 (31)馬達驅動電路 (4〇)散熱片 (51)溫度感測器 6Electricity efficiency reduces unnecessary consumption of electricity. [Simple description of the diagram] The first picture is the appearance of the creation. The first picture is the circuit block diagram of this creation. The third picture: the waveform of the work of this creation. [Main component symbol description] (1〇) Case (30) Fan (32) Fan motor (50) Pulse width modulation controller (20) Circuit board (31) Motor drive circuit (4〇) Heat sink (51) Temperature sensor 6