201008090 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 電之散熱風扇。 【先前技術】201008090 IX. Description of the Invention: [Technical Field] The present invention relates to a heat dissipating fan, and more particularly to a self-powered cooling fan. [Prior Art]
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」，其主要是在一般散熱風扇丨的結構中 ，再加入一發電機組2的設計，如下所述： 該散熱風扇1具有一基座11、一設於該基座u上的轴 管12、一穿套過該軸管12的第—定子13、一電連接至該 第一定子13的第一電路板14、_柩設於該軸管12内的心 軸15' —固設於該心軸15頂端且環繞該軸管12的輪轂16 、多數片由該輪轂16外周緣間隔向外延伸的葉片17、一固 設於該輪轂16内周緣且環繞該第一定子13的第一磁鐵環 18,及一設置於該第一定子13頂面且位於該輪轂16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 b内側頂面上且突伸於該輪轂 鐵環21、一設置於該輪轂 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23，及一發光二 極體24 (即融㉟），該發光二極體24是電連接地設置= 該第二電路板22上且突出於該輪轂16外侧。 一定子13經由該 18產生感應激磁 藉由上述設計，當該散熱風扇丨之第 第一電路板14通電，而與該第一磁鐵環 201008090 時，便會以磁斥力帶動該第—磁鐵環18產生旋轉同時， 也會連動該輪轂16、葉片17、第二電路板22、第二定子 23、發光二極艎24 -起旋轉，而該第二定子23便會在固 定不動的第二賴環21⑽’產生㈣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是藏置於該輪較16内側， 並被該凸垣19所圍繞包覆，且該凸垣19上另設有與該第 二定子23配合發電之第二磁鐵環21，因此，該輪轂16内 側必需要具有足夠之空間才可容納該第二定子23、凸垣Η ，以及第二磁鐵環21，進而使該輪轂16之寬度及高度必需 增加，導致該散熱風扇1之整體體積也必須相對增加，而 當該散熱風扇1是必需應用於小型機構之領域時，較大之 體積勢必會造成其安裝彈性上降低，或是必需犧牲葉片17 之面積而造成散熱效率降低，因此，習知的散熱風扇丨在 結構設計上仍有可以改善的空間。 【發明内容】 因此’本發明之目的’即在提供一種可於運轉時一併 同時進行發電的散熱風扇。 於是’本發明可自發電之散熱風扇，於運轉時可產生 一電能並傳輸至一外界裝置，該可自發電之散熱風扇包含 :一框架單元、一扇輪單元、一驅動單元，及至少一第二 定子。 該框架單元具有一基座，及一設於該基座上的軸管。 201008090 該扇輪單元具有一柩設於該軸管内的心轴、一固設於 該心轴頂端且環繞該軸管的輪轂、多數片由該輪轂外周緣 間隔向外延伸的葉片，及一固設於該輪轂之内侧面的磁鐵 環。 該驅動單元具有至少一第一定子，及一設於該基座上 且電連接至該第一定子的電路板，該第一定子是位於該磁 鐵環之相對下方並可與該磁鐵環產生電磁性互動的位置上 〇 該至少一第二定子是固定的設置於該磁鐵環之相對下 方並可與該磁鐵環產生電磁性互動的位置上，並與該外界 裝置電連接’且該第二定子是藉由該磁鐵環在旋轉時所形 成的交變磁場而產生電能，並將其輸出至一外界裝置。 本發明之功效在於，利用該第一、二定子設置於該磁 鐵環之相對下方並可與該磁鐵環互動而產生電動勢之位置 上的配置方式’使該第一定子驅動該扇輪單元在轉動時， 其磁鐵環可相配合地提供一轉變之磁場並與該第二定子之 間產生電磁性互動，而利用同一磁鐵環來進行扇輪單元的 驅動以及配合該第二定子發電，進而可使該輪毅之體積相 對縮小。 【實施方式】 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二個較佳實施例的詳細說明中，將可 清楚的呈現。 在本發明被詳細描述之前，要注意的是，在以下的說 201008090 明中’類似的元件是以相同的編號來表示。 參閱圖2’本發明可自發電之散熱風扇之第一較佳實施 例，於運轉時可產生一電能並傳輸至一外界裝置1〇〇,該可 自發電之散熱風扇包含：一框架單元2、一扇輪單元3、一 驅動單元4 ’及一第二定子5。 該框架單元2具有一基座21、一設於基座21上的轴管 22，及一蓋設於該基座21上之外殼23，並且該基座21與 外殼23皆具有多數個氣流孔24，以供氣流出入。 該扇輪單元3具有一樞設於該轴管22内的心轴31 ' — 固設於該心軸31頂端且環繞該軸管22的輪轂32、多數片 由該輪轂32外周緣間隔向外延伸的葉片33，及一固設於該 輪較32之内侧面的磁鐵環34。該輪較32具有一與該心轴 31連接之基部321，以及自該基部321延伸出並圍繞該轴 管22的環繞部322。 該驅動單元4具有一第一定子41，及一設於該基座21 上且電連接至該第一定子41的電路板42,該第一定子41 具有複數相疊合的第一矽鋼片411、一纏繞於該等第一矽鋼 片411上並與該電路板42電連接的第一感應線圈412，及 一承載該等第一矽鋼片411及第一感應線圈412並插設於該 基座21上之第一插接件413，該等相疊合之第一矽鋼片411 形成有一面向該磁鐵環34之底部的第一極面414(圖2中因 視角關係並未顯示出該等第一矽鋼片411之相互疊合之狀態 )’該第一插接件413是插設於該基座21上，進而將該等第 一矽鋼片411及纏繞於其上之第一感應線圈412連接於該基 201008090 座21上。 該第-定子5是固定的設置於該磁鐵環3 並可與該磁鐵環34產 之相對下方 相暴人μ 電&互動的位置上，並具有複數 :疊合的第，片51、一纏繞於該等第二發鋼片5= 等Μ""電連接的第二感應線圈52,及-承載該 等相：人之第Η及第二感應線圈52之第二插接件53，該 等相疊合之第二石夕鋼片51形成有二面向 部的第二極面5[ 螂環34之底 在本實施例中’該磁鐵環34是固設於該環繞部切面 向該軸管22的表面上，以配合該第—定子41產生電磁性 互動。當該電路板42經由外界電源通電運作後，便可令該 第一定子41導電產生交變磁場，而與該磁鐵環34的磁力 相斥以產生轉動，並帶動該輪轂32、葉片33同步轉動，而 當該磁鐵環34因該第一定子41之驅動而旋轉時，由於該 第二定子5之第二極面54同樣是面對該磁鐵環34,纏繞於 該第二矽鋼片51上的第二感應線圈52即會因為該磁鐵環 34所產生之交變磁場而在該第二感應線圈52中產生一股反 電動勢，進而形成一股電流並流入與該第二感應線圈52電 連接的外界裝置100中，而該外界裝置100可為一電能儲 存單元，或是LED發光模組等電子裝置，以接收該第二定 子5所產生之電能而進行相對應之儲存或利用，其形態在 此並不設限。 藉由上述設計，本實施例可利用同一磁鐵環34同時配 合進行驅動該扇輪單元3轉動以及配合該第二定子5進行 201008090 發電’相較於習知必須配合另外之第二磁鐵環來進行發電 的設計方式，本實施例能夠使該輪轂32之内側不需容置做 為發電用之磁鐵環及線圈元件，使該輪轂32之寬度及高度 得以縮小’進而使其體積更為精簡。 另外，在此要注意的是，在本實施例中僅揭露出一個 第一定子41的實施態樣（即單定子式風扇），但也可以採用 多數定子的配置方式來驅動該扇輪單元3,並不應侷限於本 實施例之說明’同樣地，本實施例也可配合多數個第二定 子5來進行發電，此外，該第一、二定子41、5也可採用❹ 直接配合設置於該電路板42上的態樣，也就是說，利用該 第一、二插接件413、53直接插設於該電路板42上’以使 相對應的該等第一、二矽鋼片411、51，以及第一、二感應 線圈412、52是連接於該電路板42。 參閱圖3,本發明可自發電之散熱風扇之第二較佳實施 例，大致上是與該第一較佳實施例相同，相同之處不再贅 言，其中不相同之處在於：該磁鐵環34是固設於該基部 321面向該第一、二定子41、5的表面上，而藉此設計，該❿ 輪轂32之環繞部322之高度也可相對縮小，進而使該輪轂 32之高度縮短，令該扇輪單元3整體結構能夠更為輕薄。 另外，本實施例是採用將該第一、二定子41、5直接 配合設置於該電路板42上的態樣，也就是說，利用該第— 、二插接件413、53直接插設於該電路板42上，以使相對 應的該等第一、二矽鋼片411、51，以及第一、二感應線圈 412、52是連接於該電路板42。而採用此種設置方式，也 10 201008090 可方便該第一感應線圈412與該電路板42之間電連接的實 施。 藉由上述設計，本發明之扇輪單元3被該第一定子41 所驅動而轉動時，即會藉由該磁鐵環34產生一交變的磁場 ’而處於該交變磁場中的該第二定子5的該等第二石夕鋼片 51及第二感應線圈52相配合產生一股反電動勢，並在該第 二感應線圈52中形成一股電流’藉此達到利用同一磁鐵環 34來驅動該扇輪單元3旋轉以及配合該第二定子$進行發 ® 電’而該輪轂32之内側即不需如習知般必需容置做為發電 用之額外的磁鐵環及線圈元件，進而使該輪轂32之體積得 以縮小，有效地使整體散熱風扇體積更為精簡，或是提供 該等葉片33更多的設置空間，使其可有較大的葉片33面 積’進而使其轉動時所產生的風壓及氣流量增大，有效地 提升其散熱性能。 歸納上述’本發明利用該第一、二定子41、5設置於 ❹ 該輪轂32下方並可與該磁鐵環34互動而產生電動勢之位 置上的配置方式，使該磁鐵環34在配合該第一定子41驅 動該扇輪單元3旋轉之餘，也可同時配合該第二定子5進 仃發電，藉此使該輪轂32之内側不需容置做為發電用之額 外的磁鐵環及線圈元件，有效使該輪轂32之體積得以縮小 ，並使該散熱風扇之體積整體更為精簡，且該等葉片33也 γ相對具有較大的面積以增加其轉動時的氣流量有效地 提升其散熱性能，故確實能達到本發明之目的。 准以上所述者，僅為本發明之較佳實施例而已，當不 11 201008090 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/，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一剖視圖，說明習知的一散熱風扇； 圖2是-剖視圖，說明本發明可自發電之散熱風扇的 第—較佳實施例；及 圖3是一剖視圖，說明本發明可自發電之散熱風扇的 第二較佳實施例。Referring to Figure 1, the "light-emitting cooling fan" disclosed in the new patent No. M290267 is mainly incorporated in the structure of a general cooling fan, and the design of a generator set 2 is added as follows: 1 has a base 11, a shaft tube 12 disposed on the base u, a first stator 13 that passes through the shaft tube 12, and a first circuit board 14 electrically connected to the first stator 13. a mandrel 15' disposed in the shaft tube 12 - a hub 16 fixed to the top end of the mandrel 15 and surrounding the shaft tube 12, and a plurality of blades 17 extending outward from the outer periphery of the hub 16 A first magnet ring 18 fixed to the inner circumference of the hub 16 and surrounding the first stator 13 and an annular tenon 19 disposed on the top surface of the first stator 13 and located inside the hub 16. The genset 2 has a second magnetic board 22 fixed to the inner side of the inner side of the tenon 19 and protrudes from the hub iron ring 21, a second circuit board 22 disposed outside the hub 16, and Connected to the second circuit board 22 and the second stator 23 located inside the second magnet ring 21, and a light-emitting diode 24 (ie, 35), the light-emitting diode 24 is electrically connected Setting = on the second circuit board 22 and protruding outside the hub 16. The stator 13 generates the induced excitation via the 18, and when the first circuit board 14 of the heat dissipation fan is energized, and the first magnet ring 201008090, the first magnet ring 18 is driven by the magnetic repulsion. When the rotation is generated, the hub 16, the blade 17, the second circuit board 22, the second stator 23, and the light-emitting diode 24 are also rotated, and the second stator 23 is fixed in the stationary second ring. 21(10)' generates (four) line magnetic field lines to generate electric energy to be supplied to the second circuit board 22, so that the light-emitting diodes 24 electrically connected to the second circuit board 22 can collectively generate light when rotated. However, since the second stator 23 is hidden inside the wheel 16 and surrounded by the tenon 19, the second 19 magnet is additionally provided on the tenon 19 to cooperate with the second stator 23. The ring 21, therefore, the inside of the hub 16 must have sufficient space to accommodate the second stator 23, the tenon, and the second magnet ring 21, so that the width and height of the hub 16 must be increased, resulting in the heat dissipation. The overall volume of the fan 1 must also be relatively increased. When the cooling fan 1 is required to be applied to a small-sized mechanism, a large volume is bound to cause a decrease in the elasticity of the mounting, or it is necessary to sacrifice the area of the blade 17 to cause heat dissipation. The efficiency is reduced. Therefore, the conventional cooling fan has room for improvement in structural design. SUMMARY OF THE INVENTION Therefore, the object of the present invention is to provide a heat dissipating fan which can simultaneously generate electric power while being operated. Thus, the heat-dissipating fan of the present invention can generate a power and transmit it to an external device during operation. The self-generating heat-dissipating fan comprises: a frame unit, a fan unit, a driving unit, and at least one The second stator. The frame unit has a base and a shaft tube disposed on the base. 201008090 The fan wheel unit has a mandrel disposed in the shaft tube, a hub fixed to the top end of the mandrel and surrounding the shaft tube, a plurality of blades extending outward from the outer periphery of the hub, and a solid a magnet ring disposed on the inner side of the hub. The driving unit has at least one first stator, and a circuit board disposed on the base and electrically connected to the first stator, the first stator is located below the magnet ring and can be opposite to the magnet Positioning the electromagnetic interaction between the ring and the at least one second stator is fixedly disposed opposite the magnet ring and electromagnetically interacting with the magnet ring, and electrically connected to the external device The second stator generates electric energy by an alternating magnetic field formed when the magnet ring rotates, and outputs it to an external device. The utility model has the advantages that the first stator and the second stator are disposed opposite to the magnet ring and can interact with the magnet ring to generate an electromotive force at a position to enable the first stator to drive the fan wheel unit at When rotating, the magnet ring can cooperate to provide a converted magnetic field and electromagnetic interaction with the second stator, and the same magnet ring is used to drive the fan unit and cooperate with the second stator to generate electricity. Make the volume of this round of relatives relatively smaller. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention. Before the present invention is described in detail, it is to be noted that in the following claims, the like elements are denoted by the same reference numerals. Referring to FIG. 2, a first preferred embodiment of the self-generating heat-dissipating fan of the present invention can generate an electric energy during operation and transmit to an external device 1 . The self-generating cooling fan includes: a frame unit 2 A wheel unit 3, a driving unit 4' and a second stator 5. The frame unit 2 has a base 21, a shaft tube 22 disposed on the base 21, and a casing 23 disposed on the base 21. The base 21 and the outer casing 23 each have a plurality of airflow holes. 24, for airflow in and out. The fan wheel unit 3 has a spindle 31' pivoted in the shaft tube 22 - a hub 32 fixed to the top end of the spindle 31 and surrounding the shaft tube 22, and a plurality of sheets are spaced outwardly from the outer circumference of the hub 32 The extended blade 33 and a magnet ring 34 are fixed to the inner side of the wheel 32. The wheel 32 has a base 321 that is coupled to the mandrel 31 and a surrounding portion 322 that extends from the base 321 and surrounds the shaft 22. The driving unit 4 has a first stator 41, and a circuit board 42 disposed on the base 21 and electrically connected to the first stator 41. The first stator 41 has a first plurality of stacked a steel sheet 411, a first induction coil 412 wound around the first steel sheet 411 and electrically connected to the circuit board 42, and a first steel sheet 411 and a first induction coil 412 are inserted and inserted a first connector 413 on the base 21, the first laminated steel sheet 411 is formed with a first pole surface 414 facing the bottom of the magnet ring 34 (not shown in FIG. 2 due to the viewing angle relationship a state in which the first steel sheets 411 are superposed on each other. The first connector 413 is inserted into the base 21, and the first steel sheet 411 and the first inductor are wound thereon. The coil 412 is attached to the base 201008090. The first stator 5 is fixedly disposed on the magnet ring 3 and is movable at a position opposite to the lower side of the magnet ring 34, and has a plurality of: superimposed sheets 51 and 1 a second induction coil 52 wound around the second steel sheet 5=equal "" electrically connected, and a second connector 53 carrying the phases: the third of the person and the second induction coil 52, The second stacked stone wall 51 is formed with a second surface 5 of the two facing portions [the bottom of the ring 34 is in the embodiment] the magnet ring 34 is fixed to the surrounding portion The surface of the shaft tube 22 cooperates with the first stator 41 to produce an electromagnetic interaction. When the circuit board 42 is energized by the external power source, the first stator 41 can be electrically conductive to generate an alternating magnetic field, and the magnetic force of the magnet ring 34 is repelled to generate rotation, and the hub 32 and the blade 33 are synchronized. Rotating, and when the magnet ring 34 is rotated by the driving of the first stator 41, since the second pole face 54 of the second stator 5 is also facing the magnet ring 34, the second silicon steel sheet 51 is wound. The second induction coil 52 generates a counter electromotive force in the second induction coil 52 due to the alternating magnetic field generated by the magnet ring 34, thereby forming a current and flowing into the second induction coil 52. The external device 100 is connected to the external device 100, and the external device 100 can be an electrical energy storage unit or an electronic device such as an LED lighting module to receive the electrical energy generated by the second stator 5 for corresponding storage or utilization. The form is not limited here. With the above design, the present embodiment can use the same magnet ring 34 to simultaneously drive the rotation of the fan wheel unit 3 and cooperate with the second stator 5 to perform the power generation of 201008090, which must be combined with another second magnet ring. In the present embodiment, the inner side of the hub 32 is not required to be accommodated as a magnet ring and a coil element for power generation, and the width and height of the hub 32 are reduced, thereby making the volume more compact. In addition, it should be noted that in the present embodiment, only one embodiment of the first stator 41 (ie, a single stator fan) is disclosed, but the configuration of the majority of the stator may be used to drive the fan unit. 3, it should not be limited to the description of the embodiment. Similarly, the present embodiment can also be used to generate power with a plurality of second stators 5. In addition, the first and second stators 41 and 5 can also be directly configured with ❹. The first and second connectors 413, 53 are directly inserted into the circuit board 42 to make the corresponding first and second steel sheets 411. The 51 and the first and second induction coils 412 and 52 are connected to the circuit board 42. Referring to FIG. 3, a second preferred embodiment of the self-generating heat-dissipating fan of the present invention is substantially the same as the first preferred embodiment, and the same is not the same, wherein the magnet ring is different. 34 is fixed on the surface of the base portion 321 facing the first and second stators 41, 5. By design, the height of the surrounding portion 322 of the hub 32 can also be relatively reduced, thereby shortening the height of the hub 32. The overall structure of the fan wheel unit 3 can be made lighter and thinner. In addition, in this embodiment, the first and second stators 41 and 5 are directly disposed on the circuit board 42. That is, the first and second connectors 413 and 53 are directly inserted into the circuit board 42. The circuit board 42 is such that the corresponding first and second steel sheets 411, 51 and the first and second induction coils 412, 52 are connected to the circuit board 42. With this arrangement, 10 201008090 can facilitate the implementation of electrical connection between the first induction coil 412 and the circuit board 42. With the above design, when the fan wheel unit 3 of the present invention is rotated by the first stator 41, the alternating magnetic field is generated by the magnet ring 34, and the first magnetic field is in the alternating magnetic field. The second stone plates 51 and the second induction coils 52 of the two stators 5 cooperate to generate a counter electromotive force, and a current is formed in the second induction coil 52, thereby achieving the same magnet ring 34. Driving the fan wheel unit 3 to rotate and engaging the second stator $ to perform the electric power, and the inner side of the hub 32 does not need to be accommodated as an additional magnet ring and coil element for power generation, so that The volume of the hub 32 is reduced, which effectively reduces the overall cooling fan volume, or provides more space for the blades 33 to have a larger area of the blade 33, which in turn causes it to rotate. The wind pressure and air flow increase, effectively improving its heat dissipation performance. In summary, the present invention utilizes the arrangement in which the first and second stators 41, 5 are disposed under the hub 32 and can interact with the magnet ring 34 to generate an electromotive force, so that the magnet ring 34 is engaged with the first The stator 41 drives the rotation of the fan wheel unit 3, and can also cooperate with the second stator 5 to generate electricity, so that the inner side of the hub 32 does not need to be accommodated as an additional magnet ring and coil component for power generation. Effectively reducing the volume of the hub 32 and making the volume of the cooling fan more compact, and the blades 33 also have a relatively large area to increase the air flow during rotation to effectively improve the heat dissipation performance. Therefore, the object of the present invention can be achieved. The above is only the preferred embodiment of the present invention, and it is not limited to the scope of the present invention, that is, the simple equivalent change of the scope of the invention and the description of the invention. And repair /, are still within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a conventional heat dissipating fan; Fig. 2 is a cross-sectional view showing a first preferred embodiment of a self-generating heat dissipating fan of the present invention; and Fig. 3 is a cross-sectional view. A second preferred embodiment of the heat dissipating fan that can self-generate the present invention will be described.
12 201008090 【主要元件符號說明】 2…… •…框架單元 41…… •…第一定子 21 ·.·.· 基座 411… •…第矽鋼片 22••… …·軸管 412… •…第一感應線圈 23….· …·外殼 413… •…第一插接件 24…· 氣blL孔 414… —第 極面 3…… •…扇輪單元 42…… •…電路板 31 —心轴 5 ....... •…第二定子 32….· …·輪轂 51…… •…第二矽鋼片 321… …·基部 52…… •…第二感應線圈 322… •…環繞部 53…… •…第二插接件 33••… …·葉片 54…… —第一極面 34••… •…磁鐵環 100… •…外界裝置 4…… •…驅動單元 ❹ 1312 201008090 [Description of main component symbols] 2... •...Frame unit 41... •...First stator 21 ····· Base 411... •...Den steel plate 22••...·Shaft tube 412... ...first induction coil 23....·... housing 413... •...first connector 24...·gas blL hole 414...-pole surface 3...•...fan unit 42...•...board 31 — Mandrel 5 ....... •...Second stator 32....··· Hub 51... •...Second steel plate 321...·Base 52...•...Second induction coil 322... Section 53... •...Second connector 33••...blade 54...——first pole face 34••...•...magnet ring 100... •...external device 4... •...drive unit❹ 13