1283158 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種鼓風散熱扇之葉 & 於-葉輪之數個鼓風扇葉在入風侧形成:對二是關 排列，以相對擴增進氣範圍之葉輪構造。 <的扇葉 【先前技術】 I用鼓風散熱扇之構造，請參照第以 係包含-殼座！、一蓋板2及一葉輪3 =， 室U及—側出風口 12。該芸板2纴人认 5又有—谷 # 扳2結合於該殼座1上，並 =一入風σ 21。該葉輪3可轉動的設於該殼座i之容室 内，亚設有-輪轂3卜—讀件32及數個 。=風葉該支撐件32連駿該輪轂Μ。如第 "不’忒豉風葉片33之頂端亦可選擇設置一連接環34 以強化、纟。翻度。在運轉時’該扇輪3之鼓風扇葉％ =，進：由該蓋板2之入風口 21吸入軸向氣流。接著， 二風扇茱33則驅動該軸向氣流經由該殼座！之侧出風口 ' /向輸出如此妓風散熱扇即可對該側出風口】2外之 右人放熱物件〔如散熱鰭片〕進行散熱。 > 士雖…、：上述鼓風散熱扇廣泛使用於電腦系統中，然而 該鼓風散^扇在實際使用上仍存在下列其他問題，例如： ⑴σ亥妓風扇葉33之入風側緣33a通常與該輪轂之 頁面大致具有相同轴向高度，且在完成組裝時該輪毅W 上頁面大致貼近於该盖板2之人風口 Μ處。因此，實際上 .亥入風π 21僅能由該鼓風扇葉％之間的間隙形成進氣 ϊ hii'PK05l7.r(〇c 1283158 範圍，因而侷限軸向氣流的進氣量。此時，若該鼓風扇葉 33之入風側、緣33a軸較大徑向長度，則將造成該入風側 緣33a干擾、阻礙该入風口 21之軸向氣流之進氣動作，因 而不利於提升進氣量，進而影響出風量及其風壓；及〔2 〕、另一方面，若該鼓風扇葉33在入風侧緣3如形成較大 徑向長度’則經由該入風口 21吸入之轴向氣流在進入該殼 座1後，將立刻受該入風侧緣33a的旋轉導引，而立即轉 成径向離心氣流。此種氣流立即轉向的現象可能導致產生 鼓風噪音，而影響鼓風散熱扇之轉速效率。基於上述因素 ’霉貫仍有必要進-步改良上述鼓風散熱扇之葉輪構造。 有鑑於此，本發明改良上述之缺點，其中一葉輪之數 個鼓風扇葉係於人風侧適#減少軸向高度或扇葉數量，以 gj避免阻礙進氣，同時該鼓風扇葉之整體轴向高度相對高於 該茱輪之輪轂頂面，以供形成—緩衝空間。藉此，本發明 嫁實能相對擴增進氣範圍、增加出風風壓及降低鼓風噪音 〇 【發明内容】 ，本發明主要目的係提供一種鼓風散熱扇之葉輪構造 夕其中一葉輪構造有利於由一蓋板之一入風口吸入相對較 =之軸向氣流，使本發明具有擴增進氣範圍及增加出風風 壓之功效。 复本务明次要目的係提供—種鼓風散熱扇之葉輪構造 。二中一葉輪構造之數個鼓風扇葉係於入風側適當減少轴 向阿度，以避免限礙進氣，使本發明具有擴增進氣範圍及 1283158 增加出風風壓之功效。 ，並—目的係提供—種鼓風散熱扇之葉輪構造 葦翁Γ讀構造之數個鼓風麵係於人風侧適當減少扇 增加出風風壓之功效。縣發明具有擴增進氣範圍及 並^\明再一目的係提供—種鼓風散熱扇之葉輪構造 茱輪之輪穀上方可供由-蓋板之—人風口吸入轴 亚使軸向氣流流暢的轉向成徑向氣流，使本發明 ”有擴增錢範圍及降低鼓風料之功效。 ，縣發明之鼓風散熱叙葉輪構造，其包含—輪穀 =彳目支撐件及數個鼓縣葉。該輪轂湘該支標件 3 ^ 鼓風扇葉。賴輪構造係具有—人風侧及- ^ ,, /豉風扇葉在該葉輪構造入風側之相對底侧係形 疏的扇葉排列，_有獅相對擴增人風側之進氣 【實施方式】 明確被ΐ本發明之上述和其他目的1、特徵、和優點能更 固 了知下文將特舉本發明較佳實施例，並配合所糾 圖式，作詳細說明如下。 # 請參昭楚2 n j q 执 〜弟3及4圖所示，本發明第一實施例之鼓風散 t、^f輪構造4係包含—輪轂4卜至少-個支撺件42 固攱風扇葉43及至少一連接環44。該葉輪構造4 择兮〜馬— j 整之鼓風^緣示〕’並與一殼座1及一蓋板2組成完 政熱扇〔如第1及2圖所示〕。該葉輪構造4具1283158 IX. Description of the invention: [Technical field of the invention] The present invention relates to a blasting fan blade & several impeller blades of the impeller are formed on the wind inlet side: Improve the impeller structure of the gas range. <Following blade [Prior Art] I use the structure of the blast fan, please refer to the section containing the housing - housing! , a cover 2 and an impeller 3 =, a chamber U and a side air outlet 12 . The seesaw 2 认 认 认 又 又 又 谷 谷 谷 谷 谷 谷 谷 谷 谷 谷 谷 谷 谷 谷 谷 结合 结合 结合 结合 结合 结合 结合 结合The impeller 3 is rotatably disposed in the chamber of the housing i, and is provided with a hub 3 - a reading member 32 and a plurality of. = The blade is supported by the support member 32. For example, a connection ring 34 may be optionally provided at the top of the "not" hurricane blade 33 to strengthen and smash. Turn over. During operation, the fan blade leaf % of the fan wheel 3 is in, and the axial airflow is taken in by the air inlet port 21 of the cover plate 2. Then, the two fan blades 33 drive the axial airflow through the housing! The side air outlet ' / to the output of such a hurricane cooling fan can be used to dissipate heat from the right side of the air outlet (such as the heat sink fins). > Although the damper cooling fan is widely used in computer systems, the blasting fan still has the following other problems in practical use, for example: (1) σ海妓 fan blade 33 into the wind side edge 33a It generally has the same axial height as the page of the hub, and when the assembly is completed, the page on the wheel W is substantially close to the manhole of the cover 2. Therefore, in fact, the inlet wind π 21 can only form the intake ϊ hii'PK05l7.r (the range of 〇c 1283158 by the gap between the fan fan blades %, thus limiting the amount of intake air of the axial airflow. At this time, If the wind inlet side and the edge 33a of the blower fan blade 33 have a large radial length, the air inlet side edge 33a will interfere with and hinder the axial airflow of the air inlet 21, thereby preventing the lifting. The amount of gas, which in turn affects the air volume and its wind pressure; and [2], on the other hand, if the blower fan blade 33 forms a large radial length at the wind inlet side edge 3, the shaft is drawn through the air inlet 21 After entering the housing 1, the airflow will be immediately guided by the rotation of the air inlet side edge 33a, and immediately turned into a radial centrifugal airflow. The phenomenon that the airflow is immediately turned may cause blast noise and affect the drum. The speed efficiency of the wind cooling fan. Based on the above factors, it is still necessary to further improve the impeller structure of the above-mentioned blast fan. In view of the above, the present invention improves the above disadvantages, in which a plurality of drum fan blades of an impeller On the side of the wind, reduce the axial height or the number of blades, Gj avoids obstructing the intake air, and the overall axial height of the drum fan blade is relatively higher than the top surface of the hub of the wheel to provide a buffer space. Thereby, the marriage energy of the invention can relatively increase the intake air range and increase The wind pressure and the blast noise are reduced. [The present invention] The main object of the present invention is to provide an impeller structure for an air blower fan. One of the impeller configurations is advantageous for sucking a relatively shallow axis from one of the air inlets of a cover plate. To the airflow, the invention has the effect of amplifying the air intake range and increasing the wind pressure. The second objective of the present invention is to provide an impeller structure of a blast fan, and a plurality of blower fans of the second and first impeller structures. The leaf system is appropriately reduced in the axial direction on the wind inlet side to avoid obstructing the intake air, so that the invention has the effect of amplifying the intake air range and increasing the wind pressure by 1283158. And the purpose is to provide a kind of blast heat dissipation. The fan impeller structure of the 苇 Γ Γ Γ 数 数 数 数 数 数 数 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当 适当Blowing fan The impeller is constructed above the wheel valley of the wheel to allow the axial airflow of the mantle to be smoothly steered into a radial airflow, so that the present invention has the effect of expanding the range of money and reducing the effect of the blasting material. The blasting heat impeller structure invented by the county, which includes - the valley - the eye support and several drums of the county. The wheel hub is the standard 3 ^ drum fan leaf. The Lai wheel structure has a - wind side And - ^ , , / / fan blades in the impeller structure on the wind side of the opposite side of the fan blade arrangement, _ lion with relative expansion of the wind side of the air intake [embodiment] The above and other objects, features, and advantages will be more fully understood. The preferred embodiments of the present invention will be described in detail below, and the details of the present invention will be described in detail below. # #见昭楚2 njq 执〜弟三As shown in FIG. 4, the blast-and-foil structure 4 of the first embodiment of the present invention includes a hub 4, at least one support member 42, a fixed fan blade 43, and at least one connecting ring 44. The impeller structure 4 selects the 鼓 马 马 马 马 整 ’ ’ ’ ’ ’ ’ 并 并 并 并 并 并 并 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The impeller structure 4
LinrtUK ι:5「> ΛΜ —7 — =一入風侧4〇a及—底側4〇b，該入風側4〇a係對應於該 盖板2之一入風口 21 ’而該底側樣係相對於入風侧術 之另一侧’例如鄰近該殼座1之-容室11的内底面。該輪 穀41之㈣可容設馬達’且係以可轉動的方式結合在該殼 座1之合至11内。該支撐件42係由該輪轂41之外周面 向外徑向延伸形成之波浪狀肋條。該支撐件42係可用以-組連接其中—部份之鼓風扇葉43，同時所有鼓風扇葉43 則利用該連接王裒44相互連接，因而該支料42可直接、 間接的將所有鼓風騎43切連接於該輪穀41。 請再I照第3及4 SJ所示，本發明第—實施例之鼓風 羽葉43 &含數個側緣，例如一入風側緣&及—底緣伽 。該入風側緣43a係位於該葉輪構造4之入風側術。该 :緣43b，位於該葉輪構造4之底侧働，並在外周緣利 该，接壤44形成相互連接關係。其中，至少_部份之鼓 風扇葉43的入風側緣43a的轴向高度係大於另一部份之鼓 ==的入風側緣43al的轴向高度。藉此，該鼓風扇 葉_ /輪構造4之人風侧他相對形成較稀疏的扇 的^排輪構造4之底射ob則相對形成較密集 古羽茱排列。再者，該鼓風扇葉43之整體軸向高度較佳係 问於該輪轂41之頂面，如此在該鼓風扇葉幻及輪 之頂面之間可共同圍繞形成—緩衝空間4〇〇。 '又 請參照第5圖所示，當本發明之鼓風散熱屬運轉時， =減造4之鼓風扇葉43將旋轉帶動外部之•該由 遠盖板2之人風口 21進人該緩衡空間·。此時，由於$ ^158 鼓風扇装心 稀疏的麵非之入風侧緣43&1係相對底侧4%形成較 側仙此本發明可減少該鼓風扇帛43在入風 a形成過度密集的扇葉排列，因而有效避免 風口 21 ή6 A # 4 、兄丁馒该入 、虱動作，並相對擴大入風側之緩衝空間4〇〇， 壬利於將進氣面積擴增至最大。接著，在轴向氣 ，〜亥％衝空間400後，由於該缓衝空間4⑻具有足夠空 二擴增該軸向氣流之進氣範圍，並導引該軸向： r 味向。在流暢的轉向後，軸向氣流再經由該鼓風 二茶43的士驅動’而以徑向氣流方式由該側出風π 12增壓 雨出。此時’由於該鼓風扇葉43近入風側40a之上半部具 有較稀，的扇葉排列’因而造成該鼓風扇葉43近底侧40b q 半P相對具有較大驅風能力。藉此，軸向氣流傾向往 ^支風扇葉43之下半部流動，故亦能避免軸向氣流的轉向 動作過度#中在該鼓風扇葉43的上半部，進而有效減少該 破風扇葉43在轉動時所產生之鼓風樣音。 ^明芩A第6圖所不，其揭示本發明第二實施例之鼓風 散熱权葉輪構造。相較於第一實施 <列，第二實施例之鼓 風扇葉43係進一步由各入風侧緣43a、43al、43a2、43a3 形成一種以上的不同軸向高度，且各鼓風扇葉43係等角度 對於雜轂Μ周圍，如此紐風扇葉43同樣可在 ^風側40a形成相對較稀疏的扇葉排列，且亦可減少干擾 ^入風口 21的進氣動作〔如第5圖所示〕，以相對擴增進 氣範圍。同吩，該鼓風扇葉43及輪轂41之頂面之間亦可 同圍繞形成戎緩衝空間4〇〇，以相對增加進氣面積、提LinrtUK ι: 5 "> ΛΜ - 7 - = one wind side 4 〇 a and - bottom side 4 〇 b, the wind side 4 〇 a corresponds to one of the cover 2 air inlet 21 ' and the bottom The side sample is opposite to the other side of the wind side side, for example, adjacent to the inner bottom surface of the housing 11 of the housing 1. The (four) of the wheel valley 41 can accommodate the motor ' and is rotatably coupled thereto. The housing 1 is closed to 11. The support member 42 is a wave-shaped rib extending radially outward from the outer circumferential surface of the hub 41. The support member 42 can be used to connect the portion of the drum fan blade 43. At the same time, all the fan fan blades 43 are connected to each other by the connection king 44, so that the material 42 can directly and indirectly connect all the blasters 43 to the wheel valley 41. Please refer to the 3rd and 4th SJ. As shown, the blast blade 43 & of the first embodiment of the present invention includes a plurality of side edges, such as an air inlet side edge & and a bottom edge gamma. The wind inlet side edge 43a is located in the impeller structure 4 In the wind side, the edge 43b is located at the bottom side of the impeller structure 4, and is disposed at the outer periphery, and the boundary 44 forms an interconnection relationship. Among them, at least a part of the blower fan The axial height of the inflow side edge 43a of the leaf 43 is greater than the axial height of the other side of the drum == of the inflow side edge 43al. Thereby, the drum fan leaf _ / wheel structure 4 of the wind side of him The bottom shot ob of the row wheel structure 4 forming a relatively sparse fan is relatively densely arranged. The overall axial height of the drum fan blade 43 is preferably applied to the top surface of the hub 41. In this way, the drum fan blade and the top surface of the wheel can be formed together to form a buffer space 4〇〇. 'Also refer to FIG. 5, when the blasting heat of the present invention is running, = reduction The drum fan blade 43 of 4 will rotate to drive the outside. • The person's tuyere 21 of the far cover 2 enters the space for the balance. At this time, due to the $^158 blower fan, the sparse face is not the wind side edge. 43&1 is formed on the bottom side with 4% of the bottom side. The present invention can reduce the arrangement of the fan fan 帛43 forming an excessively dense fan blade in the air inlet a, thereby effectively avoiding the tuyere 21 ή6 A #4, the brother Ding 馒, 虱 movement, and relatively expand the buffer space on the wind side 4〇〇, to facilitate the expansion of the intake area to the maximum. Then, in the axial direction After the %%% rushing space 400, since the buffer space 4(8) has enough space to amplify the axial airflow range and direct the axial direction: r taste direction. After smooth steering, axial airflow Then, the blast 2 tea 43 taxi drive' is heated by the side air π 12 in a radial air flow mode. At this time, the upper half of the blower fan blade 43 is closer to the wind side 40a. The thin fan blade arrangement 'causes the drum fan blade 43 to have a relatively large wind-carrying capacity on the near-bottom side 40b q half-P. Thereby, the axial airflow tends to flow to the lower half of the fan blade 43, so In the upper half of the blower fan blade 43 which avoids the axial flow of the airflow, the blasting sound generated by the broken fan blade 43 during rotation is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 6 is a view showing the construction of an blast heat dissipation impeller according to a second embodiment of the present invention. Compared with the first embodiment <column, the blower fan blade 43 of the second embodiment further forms one or more different axial heights by the respective air inlet side edges 43a, 43al, 43a2, 43a3, and each of the blower fan blades 43 The angle of the equilateral hub is such that the fan blade 43 can also form a relatively sparse fan blade arrangement on the wind side 40a, and can also reduce the air intake action of the interference air inlet 21 (as shown in Fig. 5). To relatively amplify the intake range. Similarly, the top surface of the blower fan blade 43 and the hub 41 may also form a buffer space 4〇〇 to increase the air intake area.
LindiivPK hit\PKf)i)l7.rloc 1283158 升氣流轉向流暢性，並減少鼓風D喿音。 請參照第7圖所示，其揭示^明第三實施例之鼓風 散熱扇之茱輪構造。相較於第—實施例，第三實_4 輪構造4除了在入風側40a同樣可形成相對較稀疏的扇葉 排列之外，該鼓風扇葉43係進—步設有另—連接環. 該連接環45係連接在至少—部份之鼓風扇葉β的入風側 緣43a的外周緣。猎此，該連接環#可強化該葉輪構造* 在入風侧輪之結構強度，同時亦可適當減少径向輸出氣 流往該入風口 21意外形成洩流之機率。 請參照第8圖所示，其揭示本發明第四實施例之鼓風 散熱扇之葉輪構造。相較於第—實施例，第四實施例同樣 設計使至少-部份之鼓風扇葉43的入風侧緣祝的轴向高 度大於另—雜之鼓風扇葉43, ό认風侧緣彻的轴向 尚度’但該鼓風扇葉43之下半部係與該鼓風扇葉43，形 成相同之較大徑向長度。同時，該鼓風扇葉43 <上_· 形成較小徑向長度。藉此，該鼓風扇葉43、的，可在入風 侧40a形成更稀疏的扇葉排列，以相對擴增進氣範圍。同 時，該鼓風扇葉43之下半部及鼓風扇葉43,則可具有更 大之驅風能力。 5月茶,¾第9圖所不’其揭示本發明第五實施例之鼓風 散熱扇之葉輪構造。相較於第四實施例，第五實施例之葉 輪構造5係包含〆輪章支51、至少—支擇件52、數個上鼓風 扇葉53、數傭下鼓風扇葉53，及數個連接環M、55、56 。該葉輪構造5具有-入風側5〇a及—底側5〇b。該上鼓 >'>ί '.!·Κ!)5Ι7. dtK： a^158 風扇葉53及下鼓届戶_ 形成支似區隔^μ 5卜該上鼓風騎μ η 找件52錢至該輪殺 數量。再者，該上鼓之數量係少於該下鼓風扇葉订之 該下鼓風扇葉53,之^^53穿之ί向長度較佳可選擇小於 53 ^ 53, 〇長又。藉此，談上、下鼓風扇葉 葉數量的方式輪構造5之人風側*利用減少扇 圍。同時，竹士t稀疏的扇葉排列’以相對擴增進氣範 之鼓風散熱扇之苹輪= 例之葉輪構造6:=二^ 厨戶# ^ 3 輪單又61、一支撐件62及數個鼓 。該葉輪構造6具有—入風側6〇a及一底側_ ，輪㈣係利用環板狀之支擇件& 一體連接支樓該鼓 羽某63。該鼓風扇葉63同樣包含數個側緣，例如一入 =側緣63a、63al、_及一底緣_。該入風側緣咖、 二163&2亦形成不同之軸向高度，因而使該鼓風扇葉63 =茶輪構造6之人風侧_具有較稀疏之扇葉排列，以 '二干擾5亥入風口 21的進氣動作。另外，該鼓風扇葉63 之整=轴向高度係高於該輪穀61，如此在該鼓風扇葉幻 及，fc 61之頂面之間可形成—缓衝空間6〇〇，以相對增力口 進氣面積、提升氣流轉向流紐，並減少鼓風噪音。 上所述，相較於第1圖之習用葉輪構造3僅具有限 進氣範圍且易因氣流立即轉向而產生鼓風噪音等缺點，第 4圖之本發明藉由該鼓風扇葉们在該葉輪構造4之入風側 1283158 緩衝空間400 範圍、增加出 4〇a形成相對較稀疏之扇葉排列，同時在該 的輔助下，其確實可相對擴增入風側之進氣 風風壓及降低鼓風噪音。 雖然本發明已利用前述較佳實施例詳細揭示，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 之和神和㈣内’當可作各種之更動與修改，因此本發明 之保禮範圍當視後社巾請專義_界定者為準。 ：^Π!-Ι Linda K ha'vPK^iV. doc ~ 12 l2^l58 【圖式簡單說明】 第2圖·白用妓風散慧扇之分解立體圖。 第3二f ·用豉風散熱扇之分解立體圖。 之立二二·，第—實施例之鼓風散熱扇之筆^ 立肢不思及局部剖視圖。 菜輪構造 圖 第4圖.本發明第—實齡i之鼓風散熱 扇之叙合 剖視 第5圖 圖 :本發明第-實施例之鼓風散熱扇之使用 示意 之葉輪構造 之葉輪構造 之葉輪構造 之茶輪構造 屬之葉輪媾 第圖本發明第二實施例之鼓風散埶肩 之立體示意及局部觸圖。 ^LindiivPK hit\PKf)i)l7.rloc 1283158 The levitation airflow turns fluently and reduces the blast D sound. Referring to Fig. 7, there is disclosed a wheel structure of the blast fan of the third embodiment. In contrast to the first embodiment, the third real-four wheel configuration 4 is provided with a relatively sparse fan blade arrangement on the air inlet side 40a, and the drum fan blade 43 is further provided with another connecting ring. The connecting ring 45 is connected to the outer periphery of at least a portion of the air inlet side edge 43a of the blower fan blade β. Hunting this, the connecting ring # can strengthen the impeller structure * the structural strength of the wind side wheel, and can also reduce the probability that the radial output air flow will accidentally form a discharge to the air inlet 21. Referring to Fig. 8, there is disclosed an impeller structure of a blast fan of a fourth embodiment of the present invention. Compared with the first embodiment, the fourth embodiment is also designed such that the axial height of the inlet side edge of at least a portion of the blower fan blade 43 is greater than that of the other miscellaneous drum fan blade 43. The axial extent 'but the lower half of the drum fan blade 43 and the drum fan blade 43 form the same large radial length. At the same time, the drum fan blade 43 < Thereby, the blower fan blades 43, can form a more sparse fan blade arrangement on the wind inlet side 40a to relatively amplify the intake air range. At the same time, the lower half of the blower fan blade 43 and the blower fan blade 43 can have a greater ability to drive air. The May tea, 3⁄4, Fig. 9 does not disclose the impeller structure of the blast fan of the fifth embodiment of the present invention. Compared with the fourth embodiment, the impeller structure 5 of the fifth embodiment includes a wheel bearing branch 51, at least a selection member 52, a plurality of upper drum fan blades 53, a plurality of lower drum fan blades 53, and a plurality of Connect the rings M, 55, 56. The impeller structure 5 has a wind inlet side 5〇a and a bottom side 5〇b. The upper drum >'> ί '.!·Κ!)5Ι7. dtK: a^158 Fan leaf 53 and the next drum _ _ forming a branch like ^μ 5 卜上上风风骑 μ η find pieces 52 money to the number of rounds. Moreover, the number of the upper drums is less than the lower drum fan blade 53 of the lower drum fan blade, and the length of the upper drum is preferably less than 53 ^ 53, and the length is further selected. In this way, the number of upper and lower drum fan blades is used to reduce the fan width by the wind side of the wheel structure 5 . At the same time, the bamboo leaf t sparse fan blade arrangement 'to relatively expand the air intake Fan's blast fan fan wheel = example of the impeller structure 6: = 2 ^ kitchen household # ^ 3 wheel single 61, a support 62 and Several drums. The impeller structure 6 has a wind inlet side 6〇a and a bottom side _, and the wheel (4) integrally connects the branch feathers 63 with a ring-shaped support member & The blower fan blade 63 also includes a plurality of side edges, such as a side edge 63a, 63al, _ and a bottom edge _. The wind inlet side edge coffee, two 163 & 2 also form different axial heights, thus making the drum fan blade 63 = the wind side of the tea wheel structure 6 _ with a sparse fan blade arrangement, with 'two interference 5 hai The air intake action of the air inlet 21. In addition, the whole = axial height of the blower fan blade 63 is higher than the trough 61, so that a buffer space 6〇〇 can be formed between the top surface of the blower fan and the top surface of the fc 61 to relatively increase The air inlet area, the airflow steering flow, and the blast noise. As described above, the conventional impeller structure 3 of FIG. 1 has only a limited intake air range and is susceptible to blast noise due to immediate steering of the air flow. The present invention of FIG. 4 is by the drum fan blade. The inlet side of the impeller structure 4 is 1283158. The buffer space 400 ranges, and 4 〇a is added to form a relatively sparse fan blade arrangement. At the same time, it can actually amplify the inlet air pressure and the inlet side of the wind side. Reduce blast noise. Although the present invention has been disclosed in detail by the foregoing preferred embodiments, it is not intended to limit the scope of the invention, and the invention may be modified and modified without departing from the scope of the invention. The scope of the gift of the present invention is subject to the definition of the social towel. :^Π!-Ι Linda K ha'vPK^iV. doc ~ 12 l2^l58 [Simple description of the diagram] Figure 2: Exploded perspective view of the white hurricane fan. The third two f · exploded perspective view of the hurricane cooling fan. Li Er 2nd, the embossing fan of the first embodiment is not a partial cross-sectional view of the limb. Fig. 4 is a cross-sectional view of the blasting fan of the first embodiment of the present invention. Fig. 5 is a view showing the impeller structure of the impeller structure using the blast fan of the first embodiment of the present invention. The impeller structure of the impeller structure belongs to the impeller. Fig. 1 is a perspective view and a partial touch diagram of the blasting shoulder of the second embodiment of the present invention. ^
第:圖·本發明第三實施例之鼓風散熱扇 之立體示意及局部剖視圖。 第8圖·本發明第四實施例之鼓風散熱扇 之立體示意及局部剖視圖。 第9圖：本發明第五實施例之鼓風散熱扇 之立體示意及局部剖視圖。 第10圖：本發明第六實施例之鼓風散熱 造之立體示意圖。 之葉輪構造 第11圖：本發明第六實施例之鼓風散熱扇 之剖視圖。 【主要元件符號說明】 11 容室 1 殼座 1283158Fig. 3 is a perspective view and a partial cross-sectional view showing a blower cooling fan according to a third embodiment of the present invention. Fig. 8 is a perspective view and a partial cross-sectional view showing a blower fan of a fourth embodiment of the present invention. Fig. 9 is a perspective view and a partial cross-sectional view showing a blower fan of a fifth embodiment of the present invention. Fig. 10 is a perspective view showing the blast cooling of the sixth embodiment of the present invention. Impeller structure Fig. 11 is a cross-sectional view showing a blower fan of a sixth embodiment of the present invention. [Main component symbol description] 11 Room 1 Seat 1283158
12 侧出風口 21 入風口 31 輪轂 33 鼓風扇葉 4 葉輪構造 40b底側 42 支撐件 43’ 鼓風扇葉 43al入風侧緣 43a3入風侧緣 45 連接環 400緩衝空間 50a入風側 51 輪轂 53 上鼓風扇葉 54 連接環 56 連接環 60a入風侧 61 輪轂 63 鼓風扇葉 63al入風侧緣 63b底緣 2 蓋板 3 葉輪 32 支撐件 34 連接環 40a入風侧 41 輪轂 43 鼓風扇葉 43a入風側緣 43a2入風側緣 43b底緣 44 連接環 5 葉輪構造 50b底侧 52 支撐件 53’ 下鼓風扇葉 55 連接環 6 葉輪構造 60b底側 62 支撐件 63a入風側緣 63 a2入風侧緣 600缓衝空間12 side air outlet 21 air inlet 31 hub 33 drum fan blade 4 impeller structure 40b bottom side 42 support member 43' blower fan leaf 43al air inlet side edge 43a3 air inlet side edge 45 connection ring 400 buffer space 50a air inlet side 51 hub 53 Upper drum fan blade 54 connecting ring 56 connecting ring 60a air inlet side 61 hub 63 drum fan blade 63al air inlet side edge 63b bottom edge 2 cover plate 3 impeller 32 support member 34 connecting ring 40a air inlet side 41 hub 43 drum fan blade 43a Inlet side edge 43a2 Inlet side edge 43b Bottom edge 44 Connection ring 5 Impeller configuration 50b Bottom side 52 Support member 53' Lower drum fan blade 55 Connection ring 6 Impeller configuration 60b Bottom side 62 Support member 63a Inlet side edge 63 a2 Wind side edge 600 buffer space