200949517 九、發明說明： 【發明所屬之技術領域】 特别是指一種自發 本發明是有關於一種外極式風扇， 電的外極式風扇。 【先前技術】 參閲圖卜2,現有外極式散熱風扇1包含有一殼座” 、一扇輪12，四個間隔設置於該殼座u上的極柱η，及一 設置於該殼座11上的電路板15。 © 該扇輪12具有一樞設於該殼座11上之輪轂14、多數 片設置在該輪轂14外緣之扇t 16，及一環設在所述扇葉 16外緣的感應磁鐵環17，其中，所述極柱13位在該扇輪 12之感應磁鐵環17外侧並與該電路板15形成電連接。當 所述極柱13藉由該電路板15通電導磁後，即可與該感應 磁鐵環17相互感應激磁以啟動該扇輪12旋轉。 現有外極式散熱風扇丨是將電能轉換為驅動該扇輪12 轉動的動能’達到驅風散熱的功效，若能再將該扇輪12轉 ® 動的動能加以轉換成為電能，用以供應其他元件使用，不 但可以充分利用電能，更可以有效結省電能的消耗。 但是’由於現有外極式散熱風扇丨具有輕、薄的特色 ’造成將現有外極式散熱風扇1之扇輪12的動能加以轉換 成為電能上的困難，所以，在現有外極式散熱風扇1問世 至今’市面上仍未有利用現有外極式散熱風扇1產生電能 之裝置。 【發明内容】 5 200949517 因此，本發明之目的，即在提供一種自發電的外極式 風扇。 於疋，本發明自發電的外極式風扇是包含一框架單元 、一扇輪單元、一驅動單元，及一發電單元。 該框架單7L包括一底座，及一凸設於該底座上的中心 軸，該扇輪單元包括一樞設於該中心軸上的輪轂、多數片 由該輪轂外周緣間隔向外延伸的扇葉，及一環設於所述扇 葉外周緣的第一磁鐵環。 © 該驅動單元包括一固設於該底座上的電路板，及一電 連接該電路板的磁極柱，該發電單元包括一設置於該扇輪 單元底部的第二磁鐵環、一與該第二磁鐵環對應而固設於 該底座上的基板、多數個環繞佈設於該基板上的感應線圈 ’及一蓋設於所述感應線圈上方的積磁片。 該磁極柱通電後產生交變磁場，與該第一磁鐵環的磁 力相斥而驅動該扇輪單元轉動，同時帶動設置於該扇輪單 兀底部的第二磁鐵環相對於所述感應線圈轉動，使所述感 © 應線圈與該第二磁鐵環間產生磁性的交互變化而生成電流 Ο 本發明之功效在於將該第二磁鐵環設置於該扇輪單元 底部’並將與該第二磁鐵環對應之基板設置於該框架單元 的底座上’使該扇輪單元轉動時，帶動該第二磁鐵環相對 該基板上的所述感應線圈轉動，使所述感應線圈因與該第 二磁鐵環間產生磁性的交互變化而達成生成電流的功效。 【實施方式】 200949517 ㈣本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之—個較佳實施例的詳細說明中’將可 清楚的呈現。 參閱圖3、4,本發明自發電的外極式風扇2之較佳實 施例包含-框架單元21、一扇輪單元22、一驅動單元U、 一發電單元24，及二導線25。 该框架單元21包括一底座211、—凸設於該底座211 上的中心轴212 ’及-蓋設於該底座211上的殼蓋213。該 © 扇輪單70 22包括—樞設於該中心軸212上的輪較221、多 數片由該輪轂221外周緣間隔向外延伸的扇葉222，及一環 設於所述扇葉222外周緣的第一磁鐵環223。 ‘該驅動單元23包括一固設於該底座211上的電路板 231，及一電連接該電路板231的磁極柱232。該發電單元 24包括一設置於該扇輪單元22所述扇葉222之底部的第二 磁鐵環241、一與該第二磁鐵環241對應而固設於該底座 211上的基板242、多數個環繞佈設於該基板242上的感應 © 線圈243 ’及一蓋設於所述感應線圈243上方的積磁片244 ’其中’所述感應線圈243是採用兩條金屬線以彼此相反 的方向連續捲曲環繞佈設而成，每一條金屬線可以構成許 多線圈E數（其線圈匝的外觀上是如指紋形式的同心圓態 樣’各個線圈匝又以同心圓方式環繞著該基板242中心排 列）。 於本較佳實施例中’該第二磁鐵環241是設置於所述 扇葉222的底部且可與所述感應線圈243互動而產生磁性 7 200949517 父互變化，當然該第二磁鐵環241也可以是設置於該扇輪 單兀22的輪轂221底部，只要可以與環繞佈設於該基板 242上的感應線圈243互動而產生磁性交互變化即可達成相 同之功效。該二導線25分別電連接相對應的感應線圈243 與一電子元件3。 當該電路板231經由外界電源通電運作後，便可令該 磁極柱232導電產生交變磁場，而與該第一磁鐵環223的 磁力相斥以驅使該輪轂221、所述扇葉222、與該發電單元 ❹ 24的第二磁鐵環241相對於該框架單元21的底座211產生 轉動。造成該發電單元24的第二磁鐵環241相對於固定不 動的所述感應線圈243與該積磁片244持續旋轉，而使所 述感應線圈243產生感應電動勢生成電流，經由該二導線 25將電流傳導至該電子元件3上，使該電子元件3獲得所 需的電能而運作。 綜上所述，本發明之自發電的外極式風扇2,利用將該 第二磁鐵環241設置於該扇輪單元22中所述扇葉222的底 瘳=，並將與該第二磁鐵環241對應之基板242設置於該框 架單7L21的底座211上，使該扇輪單元22轉動時，帶動該 第一磁鐵環241相對該基板242上的所述感應線圈243轉 動’使所述感應線圈243因與該第二磁鐵環241間產生磁 1·生的交互變化而生成電流，再藉由該二導線25將電流傳導 該電子元件3上，使該電子元件3獲得所需的電能而運 作’所以’僅需一驅動本發明之自發電的外極式風扇2的 電， b ’ P可同時驅動本發明之自發電的外極式風扇2及該 200949517 電子元件3，可以充分利用電能，並有效節省電能的消耗， 故確實能達成本發明之目的。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單料效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】200949517 IX. Description of the invention: [Technical field to which the invention pertains] In particular, it relates to a spontaneous invention. The invention relates to an external pole fan, an electric external pole fan. [Prior Art] Referring to FIG. 2, the conventional external-pole cooling fan 1 includes a housing, a fan 12, four poles η spaced apart from the housing u, and a housing disposed on the housing The circuit board 15 on the 11. The fan wheel 12 has a hub 14 pivoted on the housing 11, a plurality of blades 16 disposed on the outer edge of the hub 14, and a ring disposed outside the blade 16. Inductive magnet ring 17 of the edge, wherein the pole 13 is located outside the induction magnet ring 17 of the fan wheel 12 and is electrically connected to the circuit board 15. When the pole 13 is electrically guided by the circuit board 15, After the magnetic field, the induction magnet ring 17 can be induced to excite with each other to activate the rotation of the fan wheel 12. The existing external-pole cooling fan 丨 converts electrical energy into driving the kinetic energy of the rotation of the fan wheel 12 to achieve the effect of dissipating heat. If the kinetic energy of the fan wheel 12 can be converted into electric energy for use in other components, not only can the power be fully utilized, but also the energy consumption can be effectively saved. However, due to the existing external cooling fan Light and thin features' cause the existing external heat sink The kinetic energy of the fan wheel 12 of the fan 1 is converted into electrical energy. Therefore, in the prior art, the external external cooling fan 1 has not yet been used in the market. 5 200949517 Therefore, the object of the present invention is to provide a self-generating external pole fan. In the present invention, the self-generating external pole fan of the present invention comprises a frame unit, a fan unit, a driving unit, and a frame unit 7L includes a base and a central shaft protruding from the base, the fan wheel unit includes a hub pivoted on the central shaft, and the plurality of pieces are spaced outwardly from the outer periphery of the hub An extended fan blade and a first magnet ring disposed on an outer circumference of the blade. The driving unit includes a circuit board fixed on the base, and a magnetic pole electrically connected to the circuit board. The unit includes a second magnet ring disposed at the bottom of the fan unit, a substrate fixed to the base corresponding to the second magnet ring, and a plurality of induction coils disposed on the substrate And a magnetic sheet covered on the induction coil. The pole is energized to generate an alternating magnetic field, and the magnetic force of the first magnet ring repels to drive the fan unit to rotate, and simultaneously drives the fan wheel. The second magnet ring at the bottom of the single turn rotates relative to the induction coil to generate a magnetic interaction between the sense coil and the second magnet ring to generate a current. The effect of the present invention is that the second magnet ring Provided on the bottom of the fan wheel unit and disposed on the base of the frame unit on the base of the frame unit. When the wheel unit rotates, the second magnet ring is driven relative to the sensing on the substrate. The rotation of the coil causes the induction coil to achieve a current generating effect due to a magnetic interaction change with the second magnet ring. [Embodiment] 200949517 (4) The foregoing and other technical contents, features and effects of the present invention are coordinated in the following The detailed description of the preferred embodiment will be apparent from the following description. Referring to Figures 3 and 4, a preferred embodiment of the self-generating external pole fan 2 of the present invention comprises a frame unit 21, a fan wheel unit 22, a drive unit U, a power generating unit 24, and two conductors 25. The frame unit 21 includes a base 211, a central shaft 212' protruding from the base 211, and a cover 213 covering the base 211. The fan wheel unit 70 22 includes a wheel 221 pivoted on the central shaft 212, a plurality of blades 222 extending outward from the outer periphery of the hub 221, and a ring disposed on the outer periphery of the blade 222. The first magnet ring 223. The driving unit 23 includes a circuit board 231 fixed on the base 211, and a magnetic pole 232 electrically connected to the circuit board 231. The power generating unit 24 includes a second magnet ring 241 disposed at the bottom of the fan blade 222 of the fan wheel unit 22, a substrate 242 fixed to the base 211 corresponding to the second magnet ring 241, and a plurality of An inductive coil 243' disposed on the substrate 242 and a magnetic sheet 244' disposed over the induction coil 243. The induction coil 243 is continuously crimped in opposite directions from each other by two metal wires. Surrounded by a layout, each of the metal wires can constitute a plurality of coil E numbers (the coil turns are in the form of concentric circles in the form of fingerprints), and the respective coil turns are arranged in a concentric manner around the center of the substrate 242. In the preferred embodiment, the second magnet ring 241 is disposed at the bottom of the blade 222 and can interact with the induction coil 243 to generate a magnetic change. The second magnet ring 241 is also It may be disposed at the bottom of the hub 221 of the fan wheel unit 22, as long as it can interact with the induction coil 243 disposed on the substrate 242 to generate a magnetic interaction change to achieve the same effect. The two wires 25 are electrically connected to the corresponding induction coil 243 and an electronic component 3, respectively. When the circuit board 231 is energized by the external power source, the magnetic pole 232 can be electrically conductive to generate an alternating magnetic field, and the magnetic force of the first magnet ring 223 is repelled to drive the hub 221, the blade 222, and The second magnet ring 241 of the power generating unit 产生 24 is rotated with respect to the base 211 of the frame unit 21. The second magnet ring 241 of the power generating unit 24 is continuously rotated with respect to the stationary induction coil 243 and the magnetic sheet 244, so that the induction coil 243 generates an induced electromotive force generating current, and the current is passed through the two wires 25. Conducted on the electronic component 3 to operate the electronic component 3 with the required electrical energy. In summary, the self-generating external pole fan 2 of the present invention uses the second magnet ring 241 to be disposed in the fan wheel unit 22 of the fan wheel unit 222, and will be associated with the second magnet. The substrate 242 corresponding to the ring 241 is disposed on the base 211 of the frame sheet 7L21. When the fan wheel unit 22 rotates, the first magnet ring 241 is rotated relative to the induction coil 243 on the substrate 242. The coil 243 generates a current due to a magnetic interaction between the second magnet ring 241 and the current, and the current is transmitted to the electronic component 3 by the two wires 25, so that the electronic component 3 obtains the required electric energy. The operation 'so' only needs to drive the electric power of the self-generating external pole fan 2 of the present invention, b 'P can simultaneously drive the self-generating external pole fan 2 of the present invention and the 200949517 electronic component 3, and can fully utilize the electric energy And effectively saves the consumption of electrical energy, so it can indeed achieve the object of the present invention. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple changes and modifications made by the scope of the present invention and the description of the invention are all It is still within the scope of the invention patent. [Simple description of the map]
圖1是-立體分解圖’說明現有外極式風扇； 圖2是一剖面圖，輔助說明圖1的現有外極式風扇； 圖3是-立體分解圖，說明本發明自發電的外極式風 扇的較佳實施例；及 圖4疋杳J面圖，輔助說明該佳實施例構件間的相對 ❹ 9 200949517 【主要元件符號說明】 2 自發電的外極式風 23 驅動單元 扇 231 電路板 21 框架單元 232 磁極柱 211 底座 24 發電單元 212 中心轴 241 第二磁鐵環 213 殼蓋 242 基板 22 扇輪單元 243 感應線圈 221 輪轂 244 積磁片 222 扇葉 25 導線 223 第一磁鐵環 3 電子元件 ⑩ 101 is a perspective exploded view illustrating a conventional outer pole fan; FIG. 2 is a cross-sectional view for explaining the conventional outer pole fan of FIG. 1; FIG. 3 is an exploded perspective view showing the self-generating external pole type of the present invention. A preferred embodiment of the fan; and FIG. 4 is a cross-sectional view of the preferred embodiment of the present invention. 9 200949517 [Explanation of main component symbols] 2 Self-generated external pole wind 23 Drive unit fan 231 circuit board 21 Frame unit 232 Magnetic pole 211 Base 24 Power generation unit 212 Central shaft 241 Second magnet ring 213 Shell cover 242 Substrate 22 Fan wheel unit 243 Induction coil 221 Hub 244 Magnetic sheet 222 Blade 25 Conductor 223 First magnet ring 3 Electronic components 10 10