1290673 • 九、發明說明： ^ 【發明所屬之技術領域】 本發明係關於一種散熱風扇，特別是關於將至少一 發熱電子元件設於一扇輪之葉片的下風處，以降低該發熱 1 電子元件之溫升之散熱風扇。 【先前技術】 習用散熱風扇，請參照第1圖所示，其包含一殼體i • 、一扇輪2及一電路板3。該殼體1設有一氣流通道1〇、 一入風口 U、一出風口 12、一基座13及一定子組14。 該氣流通道10用以容置該扇輪2，並可供氣流由該入風 口 U輪入及由該出風口 12輸出。該基座13設於該出風 _ 12側，其用以承載該電路板3及定子組14，並結合該 羽輪2。该扇輪2設有一輪轂21、一軸桿22、數個葉片23 及一環形磁鐵24。該輪轂21呈倒碗形。該軸桿22位於 該輪轂21之内部中央位，以供可轉動的結合在該基座13 _ 上。该葉片23環設在該輪轂21之外周面。該電路板3設 有一感應元件31及至少一發熱電子元件32，其用以控制 该定子組14之交變激磁。在運轉時，該環形磁鐵24用以 感應該定子組14之交變激磁，以推動該扇輪2轉動，進 而藉由該葉片23驅動氣流由該入風口 ^側流動至該出風 口 12 側。 一般而言，上述習用具有下列缺點，例如：在散熱 風扇運轉期間，該電路板3之發熱電子元件32以電晶體 為例，其係利用半導電性之金屬/非金屬混摻材質控制電 C:\Un.ln\PK Hnt\PK!WBa ,|〇c —5 — ^/12/25)/10:52 λ« 1290673 流之閘流方向。因此，在該發熱電子元件32作動期間， a亥發熱電子兀件32本身的材質必然多少耗損部份電能， 亚將其轉換成熱能。然而，在構造上，該發熱電子元件^ 、係位於該基座13及輪穀21的範圍内，該發熱電子元件％ ’ it常缺少適當散熱機制。倘若該發熱電子元件32之熱能 未能及時驅散，則過高之溫度將導致降低該發熱電子= 32之作動穩定性，甚至影響該散減狀使用壽命。基 • 於上述原因，有必要進一步改良上述習用散熱風扇。 有鑑於此，本發明改良上述之缺點，其係將一電路 板由-基座凸伸至-扇輪之葉片的下風處，使該葉片所導 引的氣流能同時用以對該電路板上的至少一發熱電子元件 行散熱。藉此，本發明確實可相對提升該發熱電子元件 政熱效率，進而相對延長該散熱風扇之使用壽命。 【發明内容】 本發明主要目的係提供一種散熱風扇，其係將一電 • 路板之至少一發熱電子元件由一基座凸伸至一扇輪之葉片 的下風處，以便進行散熱，使得本發明具有提升電子元件 散熱效率及延長散熱風扇使用壽命之功效。 本發明次要目的係提供一種散熱風扇，其係將一電 路板之至少一發熱電子元件由一基座凸伸至一扇輪之葉片 的下風處，並對位於一肋條，以便進行散熱，使得本發明 • 具有減少擾流及嗓音之功效。 根據本發明之政熱風扇’其包含一殼體、一扇輪及 一電路板。該殼體設有一氣流通道及一基座。該基座設於 C:\Limla\PK PntNPKiHma 4|〇〇 __η 1290673 通道之―側，以供承載該電路板。該扇輪可轉動的 ^在祕座上，並設有—触及數個葉片。該電路板設 有至>、-發熱電子元件。在該殼體之麵上，該發熱電子 兀件凸伸至該扇輪之輪較的範，且至少部份位於該葉 片的下風處，以獅散該發熱電子元件產生之埶能。、 【實施方式】 為讓本發明之上述及其他目的、特徵、優點能更明1290673 • IX. INSTRUCTIONS: ^ Technical Field of the Invention The present invention relates to a heat dissipating fan, and more particularly to disposing at least one heat generating electronic component in a downwind of a blade of a fan wheel to reduce the heat 1 electron The cooling fan of the component's temperature rise. [Prior Art] A conventional cooling fan, as shown in Fig. 1, includes a casing i, a fan wheel 2, and a circuit board 3. The housing 1 is provided with an air flow passage 1〇, an air inlet U, an air outlet 12, a base 13 and a certain subgroup 14. The air flow passage 10 is for receiving the fan wheel 2, and the airflow is provided by the air inlet U and is outputted by the air outlet 12. The pedestal 13 is disposed on the side of the effluent 12 for carrying the circuit board 3 and the stator set 14 and incorporating the feather wheel 2. The fan wheel 2 is provided with a hub 21, a shaft 22, a plurality of blades 23 and a ring magnet 24. The hub 21 has an inverted bowl shape. The shaft 22 is located at the inner center of the hub 21 for rotatably coupling to the base 13_. The vane 23 is annularly provided on the outer peripheral surface of the hub 21. The circuit board 3 is provided with an inductive component 31 and at least one heat generating electronic component 32 for controlling the alternating excitation of the stator assembly 14. In operation, the ring magnet 24 senses the alternating excitation of the stator assembly 14 to push the fan wheel 2 to rotate, and the airflow from the air inlet port 4 to the air outlet port 12 side is driven by the blade 23. In general, the above-mentioned conventional use has the following disadvantages. For example, during the operation of the cooling fan, the heat-generating electronic component 32 of the circuit board 3 is exemplified by a transistor, which is controlled by a semi-conductive metal/non-metal mixed material. :\Un.ln\PK Hnt\PK!WBa ,|〇c —5 — ^/12/25)/10:52 λ« 1290673 The thyristor direction of the flow. Therefore, during the operation of the heat-generating electronic component 32, the material of the a-heating electronic component 32 itself is inevitably consumed by a portion of the electrical energy, which is converted into thermal energy. However, in construction, the heat-generating electronic component is located within the range of the susceptor 13 and the valley 21, and the heat-generating electronic component %' it often lacks a proper heat dissipation mechanism. If the thermal energy of the heat-generating electronic component 32 fails to dissipate in time, an excessively high temperature will result in a decrease in the operational stability of the heat-generating electrons = 32 and even affect the service life of the reduced-form. • For the above reasons, it is necessary to further improve the above-mentioned conventional cooling fan. In view of the above, the present invention improves the above-mentioned disadvantages by projecting a circuit board from the base to the downwind of the blade of the fan wheel, so that the airflow guided by the blade can be simultaneously used for the circuit board. At least one of the heat-generating electronic components is dissipated. Therefore, the present invention can relatively improve the thermal efficiency of the heat-generating electronic component, thereby prolonging the service life of the heat-dissipating fan. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a heat dissipating fan that protrudes at least one heat-generating electronic component of an electric circuit board from a base to a downwind of a blade of a fan wheel for heat dissipation. The invention has the effects of improving the heat dissipation efficiency of the electronic component and prolonging the service life of the heat dissipation fan. A secondary object of the present invention is to provide a heat dissipating fan that protrudes at least one heat-generating electronic component of a circuit board from a base to a downwind of a blade of a fan wheel and is located on a rib for heat dissipation. The invention has the effect of reducing spoiler and arpeggio. The thermal fan of the present invention comprises a housing, a fan wheel and a circuit board. The housing is provided with an air flow passage and a base. The base is located on the side of the C:\Limla\PK PntNPKiHma 4|〇〇 __η 1290673 channel for carrying the board. The fan wheel is rotatable on the secret seat and is provided with a plurality of blades. The board is provided with >, - heat generating electronic components. On the face of the housing, the heat-generating electronic component protrudes to the wheel of the fan wheel and is at least partially located at the downwind of the blade, so that the lion can dissipate the heat generated by the heat-generating electronic component. [Embodiment] The above and other objects, features and advantages of the present invention will become more apparent.
顯易懂，下文特舉本發明之較佳實施例，並配合所附圖式 ，作詳細說明如下： ^請參照第2圖所示，本發明第一實施例之散熱風扇 係包含一殼體1、一扇輪2及一電路板3。該電路板3係 ^该设體1及扇輪2保持特定之相對組裝關係，以便相對 _長該散熱風扇之電路板3電路之使用壽命。 5月參照第2及3圖所示，本發明第一實施例之殼體1 係设有一氣流通道1〇、一入風口 η、一出風口 12、一基 座13及一定子組η。該氣流通道1〇用以容置該扇輪2。 該入風口 11及出風口 12分別位於該氣流通道10之二側 ，並可分別用以輸入氣流及輸出氣流。該基座13選擇設 於該出風口 12側或入風口 11側，其設有數個肋條130、 一軸管131、至少一軸承132及至少一缺口 133。該肋條 130連接在該基座13及殼體1之氣流通道1〇内壁面之間 ，至少一個該肋條130具有一導線槽a及一導線缺口 b， 以供導引該電路板3之電源線〔未標示〕。該軸管131選 擇以一體成型或組合之方式形成在該基座13之中央位， 1290673 以供容設該軸承132。該缺口 133對位於該肋條130，特 別是對位於具有該導線槽a之肋條130。該定子組14與 電路板3皆固設在該基座13上，其共同用以產生交變激 磁。 請再參照第2及3圖所示，本發明第一實施例之扇 輪2設有一輪轂21、一軸桿22、數個葉片23及一環形磁 鐵24。該輪轂21係呈倒碗形。該軸桿22設於該輪轂21 之内部中央位，以供可轉動的插設結合在該基座13之軸 承132内。該葉片23環設在該輪轂21之外周面，且較佳 選自軸流式葉片構造。該環形磁鐵24設於該輪轂21之内 壁，用以感應該定子組14產生之交變激磁，以推動該扇 輪2轉動，進而藉由該葉片23驅動氣流由該入風口 η側 g幸由向流動至該出風口 12側。 請再參照第2及3圖所示，本發明第一實施例之電 路板3係選自硬性印刷電路板，其係呈扇形片狀或矩形片 狀。該電路板3設有至少一延伸部30、至少一感應元件31 及至少一發熱電子元件32。該電路板3固設在該基座13 上’且較佳靠近該肋條130之缺口 133處。該延伸部30 係由5亥電路板3徑向向外凸伸，並凸伸至該缺口 133外的 肋條130上。該感應元件31設在該電路板3之一側，且 位於該基座13之範圍内，並對應於該扇輪2之環形磁鐵 24的底端面，如此該感應元件31可用以偵測該環形磁鐵 24的極性變化。該發熱電子元件設在該電路板3之延 伸部30的一側，且較佳設在該延伸部3〇靠近該扇輪2之 C:\LinUa\l*K PiitNPKUflnn. .locBRIEF DESCRIPTION OF THE DRAWINGS The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings, which are described in detail below: Referring to FIG. 2, the cooling fan of the first embodiment of the present invention includes a housing. 1. A wheel 2 and a circuit board 3. The circuit board 3 is configured such that the body 1 and the fan wheel 2 maintain a specific relative assembly relationship so as to relatively extend the service life of the circuit board 3 circuit of the heat dissipation fan. Referring to Figures 2 and 3 in May, the casing 1 of the first embodiment of the present invention is provided with an air flow passage 1〇, an air inlet η, an air outlet 12, a base 13 and a certain sub-group η. The air flow channel 1 is for receiving the fan wheel 2. The air inlet 11 and the air outlet 12 are respectively located on two sides of the air flow passage 10, and are respectively configured to input airflow and output airflow. The pedestal 13 is disposed on the side of the air outlet 12 or on the side of the air inlet 11, and is provided with a plurality of ribs 130, a shaft tube 131, at least one bearing 132 and at least one notch 133. The rib 130 is connected between the base 13 and the inner wall surface of the air flow passage 1 of the housing 1. At least one of the ribs 130 has a wire slot a and a wire notch b for guiding the power line of the circuit board 3. [not marked]. The shaft tube 131 is selected to be integrally formed or combined in a central position of the base 13, 1290673 for receiving the bearing 132. The pair of notches 133 are located on the rib 130, and in particular, the rib 130 having the wire slot a. The stator assembly 14 and the circuit board 3 are both fixed to the base 13 for collective use to generate alternating excitation. Referring to Figures 2 and 3 again, the wheel 2 of the first embodiment of the present invention is provided with a hub 21, a shaft 22, a plurality of blades 23 and a toroidal magnet 24. The hub 21 has an inverted bowl shape. The shaft 22 is disposed in the inner center of the hub 21 for rotatably inserting into the bearing 132 of the base 13. The vane 23 is annularly disposed on the outer peripheral surface of the hub 21, and is preferably selected from an axial flow vane configuration. The annular magnet 24 is disposed on the inner wall of the hub 21 for sensing the alternating excitation generated by the stator assembly 14 to drive the rotation of the fan wheel 2, and the airflow is driven by the blade 23 to be assisted by the air inlet η side g The flow is to the side of the air outlet 12. Referring to Figures 2 and 3 again, the circuit board 3 of the first embodiment of the present invention is selected from a rigid printed circuit board which is in the form of a fan-shaped sheet or a rectangular sheet. The circuit board 3 is provided with at least one extension 30, at least one sensing element 31 and at least one heat-generating electronic component 32. The circuit board 3 is fixed to the base 13 and is preferably adjacent to the notch 133 of the rib 130. The extension portion 30 is radially outwardly projected from the 5H circuit board 3 and protrudes to the rib 130 outside the notch 133. The sensing element 31 is disposed on one side of the circuit board 3 and located in the range of the base 13 and corresponding to the bottom end surface of the ring magnet 24 of the fan wheel 2, so that the sensing element 31 can be used to detect the ring The polarity of the magnet 24 changes. The heat-generating electronic component is disposed on one side of the extension portion 30 of the circuit board 3, and is preferably disposed at the extension portion 3 near the C:\LinUa\l*K PiitNPKUflnn. .loc
05/Ι2/2!Ι/ΐη：ΐ2 AM —8 — 1290673 一側。該發熱電子元件32用以處理該感應元件3i之偵測 訊號’以便進一步輸出交變電流至該定子組14。該發熱 電子元件32較佳係可選自電晶體或積體電路封裝元件〔 1C〕，例如场效電晶體〔field-effect transistor，FET〕或 金屬乳化物半導體〔metal_〇xide semi-conductor，M0S〕 等。 請參照第3及4圖所示，當本發明第一實施例之散 熱風扇完成組裝時，該扇輪2之輪轂21在轴向上實質對 ►應於該殼體1之基座13，該電路板3之感應元件31在軸 向上實質對應於該扇輪2之環形磁鐵24的底端面。再者 ，在該殼體1之軸向上，該電路板3之延伸部3〇經由該 缺口 133徑向向外凸伸至該輪轂21的範圍之外，且可依 S求選擇僅部份凸伸或全部凸伸至該輪轂21祕圍之外 。再者，該延伸部30較佳對位於具導線槽a及導線缺口 b之肋條13G。此時，該延伸部3G上之發熱電子元件32 將至少部份或全部位於該葉片23的下風處。 4再參照第3及4圖所示。當本發明第一實施例之 政熱風扇運轉時，該電路板3之發熱電子元件32依該感 ，元件31之價測訊號產生交變電流至該定子組μ，使該 疋子，14產生交變磁場，以驅動該扇輪2轉動。該扇輪 2之葉片23立即驅動氣流由該入風口 u侧往該出風口 12 側流動。由於該發熱電子元件Μ係至少部份位於該葉片 ;的下風處’因此該葉片23驅動之氣流可用以驅散該發 ”、、電子το件32產生之熱能。藉此，有效避免該發熱電子05/Ι2/2!Ι/ΐη:ΐ2 AM —8 — 1290673 One side. The heating electronic component 32 is configured to process the detection signal of the sensing component 3i to further output an alternating current to the stator assembly 14. The heat-generating electronic component 32 is preferably selected from a transistor or an integrated circuit package component [1C], such as a field-effect transistor (FET) or a metal-emulsion semiconductor (metal_〇xide semi-conductor, M0S] and so on. Referring to FIGS. 3 and 4, when the heat dissipating fan of the first embodiment of the present invention is assembled, the hub 21 of the fan wheel 2 is substantially opposite to the base 13 of the housing 1 in the axial direction. The sensing element 31 of the circuit board 3 substantially corresponds in the axial direction to the bottom end face of the ring magnet 24 of the fan wheel 2. Furthermore, in the axial direction of the housing 1, the extension 3 of the circuit board 3 protrudes radially outward through the notch 133 to the extent of the hub 21, and only a partial convex can be selected according to the S. Extending or extending all the way to the outer circumference of the hub 21. Furthermore, the extension portion 30 is preferably located on the rib 13G having the wire groove a and the wire notch b. At this time, the heat-generating electronic component 32 on the extension 3G will be located at least partially or entirely at the leeward of the blade 23. 4 Refer again to Figures 3 and 4. When the heating fan of the first embodiment of the present invention is operated, the heat-generating electronic component 32 of the circuit board 3 generates an alternating current to the stator group μ by the price measurement signal of the component 31, so that the die, 14 is generated. The alternating magnetic field is driven to drive the fan wheel 2 to rotate. The blade 23 of the fan wheel 2 immediately drives the airflow from the side of the air inlet u to the side of the air outlet 12. Since the heat-generating electronic component is at least partially located at the leeward portion of the blade, the airflow driven by the blade 23 can be used to dissipate the heat generated by the light-emitting device 32. Thereby, the heat-generating electron is effectively avoided.
C:\Limln\PK 〇5/Ι2/2ίΐ/ιη：52 am —9 — 1290673 - 元件32之溫升，如此可避免影響該發熱電子元件32之作 . 制1定性賴定輸出功率值，進而相觀長該散熱風扇之 使用壽命。再者，當該延伸部3〇之發熱電子元件”位於 上述具導線槽a之肋條130時，將有助於相對減少該發熱 電子元件32與氣流接觸所產生之擾流及噪音，進而增加 該散熱風扇之使用品質。 請參照第5圖所示’其揭示本發明第二實施例之散 減扇。相較於第-實施例，第二實施例之電路板3係概 ^ 呈圓形，該電路板3可依產品需求選擇擴大該延伸部30 之凸伸面積，使該延伸部30可選擇凸伸至該助條13〇之 鄰近位置，以利進一步將較多之該發熱電子元件32設置 _於該延伸部30，並使其至少部份位於該葉片23的下風處 ^ ，以進行有效散熱。再者，該電路板3另在中央位置開設 一結合孔33，以供穿設結合在該基座13之軸管131上二 藉此，第二實施例不但進一步增加該發熱電子元件％之 散熱效率，同時亦相對提升該電路板3之組裝可靠度。 鬱清參照第6圖所示’其揭示本發明第二實施例之散 熱風扇。相較於第一及第二實施例，第二實施例之電路板 3’係選自軟性印刷電路板，該電路板3,同樣設有至少一延 伸部30’、一感應元件31’及至少一發熱電子元件％，，其 組裝關係及散熱原理等同於第一及第二實施例。另一方面 ，該電路板3,亦可選自硬性及軟性印刷電路板之組合，例 如使該電路板3,之主體選自硬性印㈣路板，及另使該延 伸部30’選自軟性印刷電路板，反之亦可。由於軟性印刷 ^ ^90673 電路板之厚度相對小於硬性印刷電路板之厚度，因此該延 ， 伸部30’採用軟性印刷電路板所節省之厚度空間可用以設 i較大尺寸之發熱電子元件32，。另外，該^板3，上= 可選擇設置至少-平衡片15,該平衡片15可用以防止該 電路板3,麵曲。該平衡片15係選自導磁材料〔例如鐵或 鐵合金〕製成，且對應於該環形磁鐵24。如此，在該扇C:\Limln\PK 〇5/Ι2/2ίΐ/ιη:52 am —9 — 1290673 - The temperature rise of the component 32, so as to avoid affecting the operation of the heat-generating electronic component 32. The qualitative value of the output power is determined, and further The length of the cooling fan is long. Moreover, when the heat-generating electronic component of the extension portion 3 is located in the rib 130 having the wire groove a, it will help to reduce the turbulence and noise generated by the contact of the heat-generating electronic component 32 with the airflow, thereby increasing the The use quality of the heat dissipating fan is as shown in Fig. 5, which discloses a dimming fan according to a second embodiment of the present invention. Compared with the first embodiment, the circuit board 3 of the second embodiment is substantially circular. The circuit board 3 can be selected to expand the protruding area of the extending portion 30 according to product requirements, so that the extending portion 30 can be selectively protruded to the adjacent position of the auxiliary strip 13〇, so as to further increase the number of the heat-generating electronic components 32. The extension portion 30 is disposed at least partially at the leeward portion of the blade 23 for effective heat dissipation. Further, the circuit board 3 further defines a coupling hole 33 at a central position for insertion. In combination with the shaft tube 131 of the base 13, the second embodiment not only further increases the heat dissipation efficiency of the heat-generating electronic component, but also improves the assembly reliability of the circuit board 3. Referring to FIG. Shown 'which reveals the second real invention The heat dissipation fan of the embodiment. Compared with the first and second embodiments, the circuit board 3' of the second embodiment is selected from a flexible printed circuit board, and the circuit board 3 is also provided with at least one extension 30', The sensing element 31' and the at least one heat-generating electronic component %, the assembly relationship and the heat dissipation principle are equivalent to the first and second embodiments. On the other hand, the circuit board 3 may also be selected from the combination of a rigid and flexible printed circuit board. For example, the main body of the circuit board 3 is selected from a hard printed (four) circuit board, and the extension 30' is selected from a flexible printed circuit board, and vice versa. Since the thickness of the flexible printed circuit board is relatively small, the thickness is relatively small. The thickness of the printed circuit board, so that the thickness of the extended portion 30' which is saved by the flexible printed circuit board can be used to set the heat generating electronic component 32 of a larger size. In addition, the board 3, upper = optional setting At least a balance sheet 15 which can be used to prevent the circuit board 3 from being curved. The balance sheet 15 is made of a magnetically permeable material such as iron or an iron alloy and corresponds to the ring magnet 24. Thus, In the fan
輪2轉動時’該平衡片15與環形磁鐵24之間亦可形Z • 魏平衡作用力。藉此，第三實施例不但增加該發熱電子 $件32之散熱效率餘裝裕度，科亦可相對提升該扇 輪2之轉動平衡性。 一 一〜θ…趴恐风领的發熱1When the wheel 2 rotates, the balance piece 15 and the ring magnet 24 can also form a Z-weighing force. Thereby, the third embodiment not only increases the heat dissipation efficiency margin of the heat generating electronic component 32, but also relatively improves the rotational balance of the fan wheel 2. One to ~ θ... 趴 风 wind collar fever 1
子兀件32係位於該基座13及輪轂21的範圍内，且通1 缺少適當散熱機制而容易過熱燒毁等缺點，第2圖之本号 明藉由將該電路板3由該基座13徑向向外凸伸至該扇丰 2之葉片23的下風處’使該葉片23所導引的氣流能同日 用以對該電_ 3上的健電子元件32進行散熱。藉4 ’本發明確實可降健發熱電子元件32之溫升，進.而才 對延長該散熱風扇之使用壽命。 雖然本發明已彻上述較佳實_揭示，然其並非 用以限定本發明，任何熟習此技藝者，在不脫離本發明之 精神和範圍之内，當可作各種絲與修改，因此本發明之 保護範圍當視後附之中請專利範圍所界定者為準。 C:\Unilrt\|»K I'HtNPKaorifj. doc 05/12/2!1/|〇：52 —11 — 1290673 【圖式簡單說明】 第1圖··習用散熱風爲之組合剖視圖。 第2圖··本發明第一實施例之散熱風扇之分解立體圖。 第3圖··本發明第一實施例之散熱風扇之組合上視圖。 第4圖··本發明沿第3圖之‘4線之組合剖視圖。 第5圖：本發明第二實施例之散熱風扇之組合上視圖。 第6圖：本發明第三實施例之散熱風扇之組合上視圖。 第7圖：本發明沿第6圖之線之組合剖視圖。 【主要元件符號說明】The sub-clamp 32 is located within the range of the pedestal 13 and the hub 21, and the shortcomings of the ventilating 1 are easily overheated and burned due to the lack of a proper heat dissipating mechanism. The present invention of FIG. 2 is by the pedestal of the circuit board 3 13 radially outwardly projecting to the leeward portion of the blade 23 of the fan 2 so that the air flow guided by the blade 23 can be used to dissipate heat from the electronic component 32 on the electric ray 3. By virtue of the present invention, it is possible to reduce the temperature rise of the heat-generating electronic component 32, and to extend the service life of the heat-dissipating fan. Although the present invention has been described in detail above, it is not intended to limit the invention, and the invention may be practiced in various forms and modifications without departing from the spirit and scope of the invention. The scope of protection shall be subject to the definition of patent scope in the attached annex. C:\Unilrt\|»K I'HtNPKaorifj. doc 05/12/2!1/|〇:52 —11 — 1290673 [Simplified illustration] Fig. 1··Combined heat dissipation wind is a sectional view. Fig. 2 is an exploded perspective view showing the heat radiating fan of the first embodiment of the present invention. Fig. 3 is a top plan view showing a combination of the heat radiating fans of the first embodiment of the present invention. Fig. 4 is a cross-sectional view of the combination of the 'four lines' of Fig. 3 of the present invention. Fig. 5 is a top plan view showing the combination of the heat radiating fan of the second embodiment of the present invention. Fig. 6 is a top plan view showing the combination of the heat radiating fan of the third embodiment of the present invention. Figure 7 is a cross-sectional view showing the combination of the present invention along the line of Figure 6. [Main component symbol description]
I 殼體 II 入風口 13 基座 131軸管 133 缺口 15平衡片 21輪轂 23葉片 3 電路板 30 延伸部 31感應元件 32發熱電子元件 33 結合孔 b 導線缺口 10氣流通道 12 出風口 130肋條 132軸承 14定子組 2 扇輪 22 軸桿 24環形磁鐵 3’電路板 30’延伸部 3 Γ感應元件 32,發熱電子元件 a 導線槽 一 12 一I Housing II Air inlet 13 Base 131 Shaft tube 133 Notch 15 Balance sheet 21 Hub 23 Blade 3 Circuit board 30 Extension 31 Inductive component 32 Heated electronic component 33 Bonding hole b Wire notch 10 Airflow passage 12 Air outlet 130 Rib 132 Bearing 14 stator set 2 fan wheel 22 shaft 24 ring magnet 3' circuit board 30' extension 3 Γ sensing element 32, heat-generating electronic component a wire slot 12
C:\Lim丨丨》K Pnt\PK_HUoc η.ί/|2/2!)/|〇：52 AMC:\Lim丨丨"K Pnt\PK_HUoc η. ί/|2/2!)/|〇:52 AM