200935212 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種散熱風扇，特別是指一種可自發 光之散熱風扇。 【先前技術】 參閱圖1，公告第M290267號新型專利案所揭露的「 可發光之散熱風扇」’其主要是在—般散熱風扇^的結構中 再加入發電機組2的設計，如下所述： 該散熱風扇i具有-基座u、—設於該基上的抽 管12、一穿套過該軸管12的第—定子13、一電連接至該 第疋子13的第-電路板14、—拖設於該轴管η内的心 軸15、一固設於該心轴15頂端且環繞該轴管12的輪較16 、多數片由該輪較16外周緣間隔向外延伸的葉片17、一固 設於該輪較16内周緣且環繞該第一定子13的第一磁鐵環 ❹ ，及-設置於該第-^子13頂面且位於該輪轂Μ内側 的環狀凸垣19。 該發電機組2具有-固設於該凸垣19内側面的第二磁 鐵環21—設置於該輪數16_頂面上且突伸於該輪較 16外的第二電路板22、—電連接地固設於該第二電路板22 上且位於該第二磁鐵環21内側的第二定子U，及一發光二 =24 (即LED燈)，該發光二極體“是電連接 該第二電路板22上且突出於該輪轂16外側。 ^上述設計，當該散熱風们之第—定子Μ經由該 第一電路板14通電，而與該第一磁鐵環^產生感應激磁 5 200935212 時，便會以磁斥力帶動該第一磁鐵環18產生旋轉，同時， 也會連動該輪較16、葉片17、第二電路板22、第二定子 23、發光二極體24 —起旋轉，而該第二定子23便會在固 定不動的第二磁鐵環21内側，產生切割線磁力線運動，從 而產生電能供應至該第二電路板22，以使與該第二電路板 22電連接的發光二極體24於旋轉時可以一併產生光線。 然而’由於該第二定子23是藏置於該輪轂16内側， 並被該凸垣19所圍繞包覆，先天上的體積即已受到限制而 不忐超出該凸垣19的大小，因此，該第二定子23所能纏 繞的線圈便會因為定子體積太小，而不易增多匝數，以致 於該第二定子23所能產生的電能較低而不易提高該發光二 極體24的亮度；簡言之，該散熱風扇丨通電運轉時，便會 因為該發光二極體24的亮度較低，因此，整體能夠呈現的 眩光效果便會較差。 【發明内容】 φ 因此’本發明之目的，即在提供一種可自發光之散熱 風扇，其發光亮度較高、眩光效果較為優異。 於是，本發明可自發光之散熱風扇，包含一框架單元 、一驅動單元、一扇輪單元、一發光單元、一第二定子， 及一第二磁鐵環。 該框架單元具有一基座，及一設於該基座上的轴管， 該驅動單元則具有一穿套過該軸管的第一定子，及一設於 該基座上且電連接至該第一定子的第一電路板，該扇輪單 元係具有一樞設於該軸管内的心轴、一固設於該心轴頂端 6 200935212 且環繞該軸管的輪較、多數片由該輪較外周緣間隔向外延 伸的葉片，及-固設於該輪較内周緣且環繞該第一定子的 第一磁鐵環，該發光單元則具有—設置於該輪較頂面的第 二電路板，及至少-個設置於該第二電路板上且可供電以 產生光線的發光元件。 該第二定子係具有一固設於該輪轂底部的基板、多數 個環繞佈設於該基板底面且電連接至該第二電路板的感應 ❹、線圈’及—蓋設於所述感應線圈下方的積磁片，該第二磁 鐵環則是固定地設置於可與所述感應線圈互動而產生磁性 交互變化的位置上。 當該第一電路板經由外界電源通電運作後，便可令該 第一定子導電產生交變磁場，而與該第一磁鐵環的磁力相 斥以產生轉動，該輪轂、葉片、第二定子也都會隨之轉動 ，其中，該第二定子會藉由其積磁片相對於固定不動的第 —磁鐵環持續旋轉，而產生一反向電動勢，連帶使所述感 〇 應線圈產生電流而傳遞至該第二電路板，以使電連接設置 於該第二電路板上的發光元件能夠導電而發光。 本發明之功效在於，由於該第二定子的基板是固設於 該輪轂底部，並不會被侷限在該輪轂内側，因此，該基板 的體積可以有效擴大，以使環繞佈設於該基板底面的感應 線圈阻數能夠增多，當該散熱風扇通電運轉時，所述感應 線圈便會產生更大的電能傳導至該第二電路板與發光元件 ’以提高發光元件的亮度，產生更為優異的眩光效果。 【實施方式】 7 200935212 有關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較佳實施例的詳細說明中，將可清楚 的呈現。 參閱圖2，本發明可自發光之散熱風扇3的較佳實施例 ’包令框架單元31、一驅動單元32、一扇輪單元33、一 發光單元34、一第二定子35,及一第二磁鐵環36。 該框架單元31具有一基座311、一設於該基座3Π上 的轴管312，及一蓋設於該基座311上的外殼313,並且該 基座311與外殼313皆具有多數個氣流孔315、316，以供 氣流出入。 該驅動單元32具有一穿套過該軸管312的第一定子 321，及一設於該基座311上且電連接至該第一定子321的 第一電路板322 ’該扇輪單元33係具有一枢設於該軸管 312内的心轴331、一固設於該心轴331頂端且環繞該軸管 312的輪較332、多數片由該輪轂332外周緣間隔向外延伸 的葉片333,及一固設於該輪轂332内周緣且環繞該第一定 子321的第一磁鐵環334，該發光單元34則具有一設置於 該輪轂332頂面的第二電路板341，及多數個設置於該第二 電路板341上且可供電以產生光線的發光元件342，其中， 發光元件342是採用發光二極體（LED)，當然也可以採用 其他類型的發光元件3 42 (例如小顆的燈泡），數量也可以 隨著設計需求而改變為單一顆或多數顆，所以不應偈限於 本實施例之說明。 該第二定子35係具有一固設於該輪轂332底部的基板 8 200935212 351、多數個環繞佈設於該基板351底面且電連接至該第二 電路板341的感應線圈352，及一蓋設於所述感應線圈352 下方的積磁片353，其中，所述感應線圈352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匝數（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351中心排列），該第二磁鐵環36則是固定地設置於 可與該感應線圈352互動而產生磁性交互變化的位置上， ❹ 在本實施例中，就是將該第二磁鐵環36穿套過該軸管312 且固設於該第一電路板322上，並位於該積磁片353的相 對下方。 當該第一電路板322經由外界電源通電運作後，便可 令該第一定子321導電產生交變磁場，而與該第一磁鐵環 334的磁力相斥以產生轉動，該輪轂332、葉片333、第二 定子35的基板351與感應線圈352也都會隨之轉動。 〇 至於本實施例所載之自發光技術，則是使該第二定子 35藉由其積磁片353相對於固定不動的第二磁鐵環36持續 旋轉，而產生一反向電動勢，連帶使所述感應線圈352產 生電流而傳遞至該第二電路板341，以使電連接設置於該第 二電路板341上的發光元件342能夠導電而發光。 在此要另外說明的是，前述實施例所載的自發光技術 是應用在軸流式風扇上，當然也可以將此種自發光技術應 用在圖3所示的側向式出風的風扇類型上此種風扇之基 座311與外殼313並未開設有圖2所示之氣流孔315、316 9 200935212 ，反而是該外殼313具有一氣流導入孔317，該基座3U是 與外殼313配合而界定出—氣流導出孔318;或是應用在如 圖4所示的風扇類型，其只有基座311而不存在外殼313， 該驅動單元32、扇輪單元33、發光單元34、第二定子35 、第二磁鐵環36則都是位於該基座311上方，以上各種風 扇類型皆是其所屬技術領域中具有通常知識者所熟知者， 因此，可以將本說明書所載的自發光技術予以應用而輕易 完成，所以不應以本說明書所揭露的内容為限。 綜上所述，本發明可自發光之散熱風扇3，其圖2所揭 露的實施態樣，是藉由該第二定子35的基板351固設於該 輪轂332底部，並不會被侷限在該輪轂332内侧，因此， 該基板351的體積便可以有效擴大，以使環繞佈設於該基 板351底面的感應線圈352匝數能夠增多，當該散熱風扇3 通電運轉時，該感應線圈352便會產生更大的電能傳導至 該第二電路板341與發光元件342 ,以提高發光元件342的 焭度，產生更為優異的眩光效果，所以確實能達到本發明 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的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一側視剖視圖，說明公告第M290267號新型專 利案所揭露的「可發光之散熱風扇」； 10 200935212 圖2是一側視剖視圖，說明本發明可自發光之散熱風 扇的較佳實施例； 圖3是一立體圖，說明一種側向式出風的風扇類型； 及 圖4是一侧視剖視圖，說明一種不具外殼設計的風扇 類型。200935212 IX. Description of the Invention: [Technical Field] The present invention relates to a heat dissipation fan, and more particularly to a heat dissipation fan that can emit light spontaneously. [Prior Art] Referring to Figure 1, the "light-emitting cooling fan" disclosed in the new patent No. M290267 is mainly designed to incorporate the design of the generator set 2 in the structure of the general cooling fan ^, as follows: The heat dissipating fan i has a base pu, a suction pipe 12 disposed on the base, a first stator 13 that passes through the shaft tube 12, and a first circuit board 14 electrically connected to the second cymbal 13. a mandrel 15 that is dragged into the shaft tube η, a wheel 16 that is fixed to the top end of the mandrel 15 and surrounds the shaft tube 12, and a plurality of blades that extend outward from the outer circumference of the wheel 16 17. A first magnet ring 固 fixed to the inner circumference of the wheel 16 and surrounding the first stator 13, and a ring-shaped tenon disposed on the top surface of the first leg 13 and located inside the hub 19. The genset 2 has a second magnet ring 21 fixed to the inner side of the tenon 19 - a second circuit board 22 disposed on the top surface of the wheel 16_ and protruding beyond the wheel 16 a second stator U that is fixedly connected to the second circuit board 22 and located inside the second magnet ring 21, and a light-emitting two=24 (ie, LED light), the light-emitting diode "is electrically connected to the first The second circuit board 22 protrudes from the outside of the hub 16. The above design, when the first stator of the heat dissipation wind is energized via the first circuit board 14, and the first magnet ring generates the induced excitation 5 200935212 The first magnet ring 18 is rotated by the magnetic repulsion, and the wheel 16, the blade 17, the second circuit board 22, the second stator 23, and the light-emitting diode 24 are also rotated together. The second stator 23 generates a cutting line magnetic line motion inside the fixed second magnet ring 21 to generate electric energy to the second circuit board 22 to electrically connect the second circuit board 22 to the second circuit board 22 . The polar body 24 can generate light together when rotated. However, since the second stator 23 is hidden It is placed inside the hub 16 and surrounded by the tenon 19, and the congenital volume is limited without exceeding the size of the tenon 19, so that the coil that the second stator 23 can wrap around is Because the stator volume is too small, the number of turns is not easy to increase, so that the electric energy generated by the second stator 23 is low, and the brightness of the light-emitting diode 24 is not easily improved; in short, the heat-dissipating fan is energized. Therefore, since the brightness of the light-emitting diode 24 is low, the glare effect which can be exhibited as a whole is inferior. [Invention] Therefore, the object of the present invention is to provide a self-illuminating heat-dissipating fan. The illuminating brightness is higher and the glare effect is superior. The self-illuminating cooling fan of the present invention comprises a frame unit, a driving unit, a fan unit, a lighting unit, a second stator, and a second magnet. The frame unit has a base and a shaft tube disposed on the base, the drive unit has a first stator that passes through the shaft tube, and is disposed on the base and electrically Connect to a first circuit board of the first stator, the fan wheel unit has a mandrel pivoted in the shaft tube, a wheel fixed to the top end of the mandrel 6 200935212, and a plurality of pieces surrounding the shaft tube a blade extending outwardly from the outer peripheral edge, and a first magnet ring fixed to the inner circumference of the wheel and surrounding the first stator, the lighting unit having a second portion disposed on the top surface of the wheel a circuit board, and at least one light-emitting element disposed on the second circuit board and capable of supplying power to generate light. The second stator has a substrate fixed to the bottom of the hub, and a plurality of surrounding layers are disposed on the bottom surface of the substrate. An inductive coil, a coil, and a magnetic sheet that is electrically connected to the second circuit board, and the second magnet ring is fixedly disposed to interact with the induction coil to generate magnetism The location of the interaction changes. After the first circuit board is energized by the external power source, the first stator can be electrically conductive to generate an alternating magnetic field, and the magnetic force of the first magnet ring repels to generate rotation, the hub, the blade and the second stator And the second stator is rotated by the magnetism of the magnet to the stationary magneto-magnet ring to generate a counter electromotive force, which is coupled to cause the current to be generated by the coil. To the second circuit board, the light-emitting elements electrically connected to the second circuit board can be electrically conductive to emit light. The effect of the present invention is that since the substrate of the second stator is fixed to the bottom of the hub and is not confined to the inner side of the hub, the volume of the substrate can be effectively expanded to be disposed around the bottom surface of the substrate. The number of resistances of the induction coil can be increased. When the cooling fan is energized, the induction coil generates more electric energy to be transmitted to the second circuit board and the light-emitting element to improve the brightness of the light-emitting element and generate more excellent glare. effect. The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. Referring to FIG. 2, a preferred embodiment of the self-illuminating heat dissipating fan 3 of the present invention includes a frame unit 31, a driving unit 32, a fan wheel unit 33, a lighting unit 34, a second stator 35, and a first Two magnet rings 36. The frame unit 31 has a base 311, a shaft tube 312 disposed on the base 3, and a housing 313 disposed on the base 311. The base 311 and the housing 313 each have a plurality of airflows. Holes 315, 316 for airflow in and out. The driving unit 32 has a first stator 321 that passes through the shaft tube 312, and a first circuit board 322 that is disposed on the base 311 and electrically connected to the first stator 321 The 33 series has a spindle 331 pivoted in the shaft tube 312, a wheel 332 fixed to the top end of the spindle 331 and surrounding the shaft tube 312, and a plurality of sheets extending outward from the outer circumference of the hub 332. a blade 333, and a first magnet ring 334 fixed to the inner circumference of the hub 332 and surrounding the first stator 321 . The light-emitting unit 34 has a second circuit board 341 disposed on a top surface of the hub 332, and A plurality of light-emitting elements 342 are disposed on the second circuit board 341 and can be powered to generate light. The light-emitting elements 342 are LEDs. Of course, other types of light-emitting elements 3 42 can also be used (for example, The number of small bulbs can also be changed to single or multiple depending on the design requirements, so it should not be limited to the description of the embodiment. The second stator 35 has a substrate 8 200935212 351 fixed to the bottom of the hub 332, a plurality of induction coils 352 disposed on the bottom surface of the substrate 351 and electrically connected to the second circuit board 341, and a cover a magnetic strip 353 under the induction coil 352, wherein the induction coil 352 is formed by continuously winding two metal wires in opposite directions to each other, and each metal wire can constitute a plurality of coil turns (the coil thereof) The appearance of the crucible is a concentric circular pattern in the form of a fingerprint, and each coil is arranged in a concentric manner around the center of the substrate 351. The second magnet ring 36 is fixedly disposed to interact with the induction coil 352. In the position where the magnetic interaction changes, in this embodiment, the second magnet ring 36 is sleeved over the shaft tube 312 and fixed on the first circuit board 322, and is located on the magnetic sheet 353. Relatively below. After the first circuit board 322 is energized by the external power source, the first stator 321 can be electrically conductive to generate an alternating magnetic field, and the magnetic force of the first magnet ring 334 is repelled to generate rotation. The hub 332 and the blade 333. The substrate 351 of the second stator 35 and the induction coil 352 also rotate accordingly. As for the self-luminous technology of the present embodiment, the second stator 35 is continuously rotated by the magnetic sheet 353 relative to the stationary second magnet ring 36 to generate a back electromotive force. The induction coil 352 generates a current and transmits it to the second circuit board 341, so that the light-emitting element 342 electrically connected to the second circuit board 341 can conduct electricity and emit light. It should be additionally noted that the self-illumination technology described in the foregoing embodiments is applied to an axial fan, and of course, the self-illumination technology can be applied to the fan type of the lateral air outlet shown in FIG. The base 311 and the outer casing 313 of the fan are not provided with the air flow holes 315, 316 9 200935212 shown in FIG. 2, but the outer casing 313 has an air flow introduction hole 317, and the base 3U is matched with the outer casing 313. Defining the airflow outlet hole 318; or applying the fan type as shown in FIG. 4, which has only the base 311 and no outer casing 313, the drive unit 32, the fan wheel unit 33, the illumination unit 34, and the second stator 35 The second magnet ring 36 is located above the base 311. The above various fan types are well known to those skilled in the art, and therefore, the self-luminous technology described in the present specification can be applied. It is easy to complete, so it should not be limited to the contents disclosed in this manual. In summary, the self-illuminating heat dissipating fan 3 of the present invention, in the embodiment disclosed in FIG. 2, is fixed to the bottom of the hub 332 by the substrate 351 of the second stator 35, and is not limited to The inner side of the hub 332 can effectively expand the volume of the substrate 351 so that the number of the induction coils 352 disposed around the bottom surface of the substrate 351 can be increased. When the heat dissipation fan 3 is energized, the induction coil 352 will More electrical energy is transmitted to the second circuit board 341 and the light-emitting element 342 to improve the brightness of the light-emitting element 342, resulting in a more excellent glare effect, so that the object of the present invention can be achieved. The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side elevational cross-sectional view showing a "light-emitting cooling fan" disclosed in the new patent publication No. M290267; 10 200935212 FIG. 2 is a side cross-sectional view showing the self-illuminating light of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Figure 3 is a perspective view showing a fan type of a lateral air outlet; and Figure 4 is a side cross-sectional view showing a fan type without a housing design.
11 200935212 【主要元件符號說明】 3 可自發光之散熱 331 心轴 風扇 332 輪轂 31 框架單元 333 葉片 311 基座 334 第一磁鐵環 312 軸管 34 發光單元 313 外殼 341 第二電路板 315、 316 氣流孔 342 發光元件 317 氣流導入孔 35 第二定子 318 氣流導出孔 351 基板 32 驅動單元 352 感應線圈 321 第一定子 353 積磁片 322 第一電路板 36 第二磁鐵環 33 扇輪單元 ◎ 1211 200935212 [Description of main component symbols] 3 Self-illuminating heat dissipation 331 Mandrel fan 332 Hub 31 Frame unit 333 Blade 311 Base 334 First magnet ring 312 Shaft tube 34 Light-emitting unit 313 Housing 341 Second circuit board 315, 316 Airflow Hole 342 Light-emitting element 317 Air flow introduction hole 35 Second stator 318 Air flow outlet hole 351 Substrate 32 Drive unit 352 Induction coil 321 First stator 353 Magnetic sheet 322 First circuit board 36 Second magnet ring 33 Fan unit ◎ 12