TW201408883A - Fan impeller structure of centrifugal fan - Google Patents
Fan impeller structure of centrifugal fan Download PDFInfo
- Publication number
- TW201408883A TW201408883A TW101131085A TW101131085A TW201408883A TW 201408883 A TW201408883 A TW 201408883A TW 101131085 A TW101131085 A TW 101131085A TW 101131085 A TW101131085 A TW 101131085A TW 201408883 A TW201408883 A TW 201408883A
- Authority
- TW
- Taiwan
- Prior art keywords
- blade body
- centrifugal fan
- blade
- tangent
- fan blade
- Prior art date
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
一種離心風扇扇葉結構，尤指一種雙層式離心風扇，透過選擇將上下層至少其中一層之扇葉間之間距設置為不等距，藉以降低扇葉通過舌口的單音大幅降低噪音的離心風扇扇葉結構。
A centrifugal fan blade structure, especially a double-layer centrifugal fan, which is configured to set the distance between the blades of at least one of the upper and lower layers to be unequal, thereby reducing the noise of the blade through the tongue to greatly reduce noise. Centrifugal fan blade structure.
現行電子產業迅速發展，電子元件之性能不斷提升，隨著運算速度越快其所產生之熱量則會相對產生較大之熱量，若無法將該熱量即時排出解熱，則該電子元件運算效能則會降低，嚴重者則會造成燒毀，故在有限的系統空間中透過小型之離心風扇作為解熱使用，該離心風扇主要包含有一框體、一風扇輪轂、以及環設於該風扇輪轂外部的複數扇葉體，該框體其上方及下方分別各具有一進風口，其側邊具有一出風口，當運轉時則透過該等扇葉體旋轉帶動周圍空氣流動，將從進風口進入之軸向器流轉向沿該風扇輪轂之徑向氣流後由出風口排出。
離心風扇運轉時，因葉輪所流出不均勻尾流(non-uniform wake)跟舌尖的交互作用將產生噪音，並當葉輪和舌尖的間隙比較窄時，噪音受到尾流在舌尖的衝擊以及舌尖附近的壓力差造成得舌尖震盪tongue oscillations)影響，當間隙達到葉輪半徑的20％時，主要的噪音源只剩尾流的影響，而且很小。另外在葉輪葉片間增加端的葉片（Short vane）可以減少尾流的強度，使得尾流對壓力擾動以及噪音的影響較不明顯；故習知技術具有下列缺點：
1.結構設計受限；
2.無法依特性靈活設計上下入風比例。
3.噪音大。
The current electronic industry is developing rapidly, and the performance of electronic components is constantly improving. As the speed of operation increases, the heat generated by it will generate relatively large amounts of heat. If the heat cannot be immediately dissipated, the computing power of the electronic component will be If it is lowered, it will cause burnt, so it is used as a heat dissipation in a limited system space through a small centrifugal fan. The centrifugal fan mainly includes a frame body, a fan hub, and a plurality of fan blades disposed outside the fan hub. The frame body has an air inlet port respectively above and below, and an air outlet port on the side of the frame body. When the fan body is rotated, the surrounding air flows through the fan blade body, and the axial flow from the air inlet port is entered. After being steered by the radial airflow along the fan hub, it is discharged by the air outlet.
When the centrifugal fan is running, noise will be generated due to the interaction between the non-uniform wake and the tip of the tongue, and when the gap between the impeller and the tip of the tongue is narrow, the noise is affected by the wake at the tip of the tongue and near the tip of the tongue. The pressure difference causes the tongue to oscillate. When the gap reaches 20% of the impeller radius, the main noise source only has the effect of the wake and is small. In addition, the increased vane between the impeller blades can reduce the strength of the wake, so that the influence of the wake on the pressure disturbance and noise is less obvious; therefore, the prior art has the following disadvantages:
1. Limited structural design;
2. It is not possible to flexibly design the ratio of up and down air according to the characteristics.
3. Noisy.
爰此，為解決上述習知技術之缺點，本發明之主要目的，係提供一種具有降低噪音的離心風扇扇葉結構。
為達上述之目的，本發明係提供一種離心風扇扇葉結構，係包含：
一輪轂、一第一扇葉體組、一第二扇葉體組；
所述輪轂具有一延伸部，該延伸部具有一第一側及一第二側；
所述第一扇葉體組設於前述第一側，該第一扇葉體組具有複數第一扇葉體，該等第一扇葉體間具有一第一進風口及一第一出風口，該等第一出風口係呈非等距設置；所述第二扇葉體組設於前述第二側，該第二扇葉體組具有複數第二扇葉體，該等第二扇葉體間具有一第二進風口及一第二出風口，該等第二出風口係呈等距設置。
為達上述之目的，本發明係提供一種離心風扇扇葉結構，係包含：一輪轂、一第一扇葉體組、一第二扇葉體組；
所述輪轂具有一延伸部，該延伸部具有一第一側及一第二側；
所述第一扇葉體組設於前述第一側，該第一扇葉體組具有複數第一扇葉體，該等第一扇葉體間具有一第一進風口及一第一出風口，該等第一出風口係呈非等距設置；所述第二扇葉體組設於前述第二側，該第二扇葉體組具有複數第二扇葉體，該等第二扇葉體間具有一第二進風口及一第二出風口，該等第二出風口係呈非等距設置。
為達上述之目的，本發明係提供一種離心風扇扇葉結構，係包含：一輪轂、一第一扇葉體組、一第二扇葉體組；
所述輪轂具有一延伸部，該延伸部具有一第一側及一第二側；
所述第一扇葉體組設於前述第一側，該第一扇葉體組具有複數第一扇葉體，該等第一扇葉體間具有一第一進風口及一第一出風口，該等第一出風口係呈等距設置；所述第二扇葉體組設於前述第二側，該第二扇葉體組具有複數第二扇葉體，該等第二扇葉體間具有一第二進風口及一第二出風口，該等第二出風口係呈非等距設置。
透過前述第一、二扇葉體組之第一出風口及第二出風口其中任一得選擇以不同間距設置，因可降低扇葉通過舌口（BPF）的單音，並因雙層式扇葉結構設計可增加（BPF）頻率，降低聲壓加權量大幅降低噪音，並且可依邊界條件靈活設計上下之扇葉結構。
Accordingly, in order to solve the above disadvantages of the prior art, it is a primary object of the present invention to provide a centrifugal fan blade structure having reduced noise.
In order to achieve the above object, the present invention provides a centrifugal fan blade structure, which comprises:
a hub, a first blade body set, and a second blade body set;
The hub has an extension portion having a first side and a second side;
The first blade body group is disposed on the first side, the first blade body group has a plurality of first blade body, and the first blade body has a first air inlet and a first air outlet The first air outlets are non-equidistantly disposed; the second blade body is disposed on the second side, the second blade body group has a plurality of second blade bodies, and the second blades There is a second air inlet and a second air outlet between the bodies, and the second air outlets are arranged equidistantly.
In order to achieve the above object, the present invention provides a centrifugal fan blade structure, comprising: a hub, a first blade body set, and a second blade body set;
The hub has an extension portion having a first side and a second side;
The first blade body group is disposed on the first side, the first blade body group has a plurality of first blade body, and the first blade body has a first air inlet and a first air outlet The first air outlets are non-equidistantly disposed; the second blade body is disposed on the second side, the second blade body group has a plurality of second blade bodies, and the second blades There is a second air inlet and a second air outlet between the bodies, and the second air outlets are arranged at a non-equal distance.
In order to achieve the above object, the present invention provides a centrifugal fan blade structure, comprising: a hub, a first blade body set, and a second blade body set;
The hub has an extension portion having a first side and a second side;
The first blade body group is disposed on the first side, the first blade body group has a plurality of first blade body, and the first blade body has a first air inlet and a first air outlet The first air outlets are equidistantly disposed; the second blade body is disposed on the second side, the second blade body group has a plurality of second blade bodies, and the second blade bodies There is a second air inlet and a second air outlet, and the second air outlets are arranged at a non-equal distance.
The first air outlet and the second air outlet of the first and second blade body groups are selected to be arranged at different intervals, because the single sound of the blade through the tongue (BPF) can be reduced, and the double layer is The blade structure design can increase the (BPF) frequency, reduce the sound pressure weighting amount to greatly reduce the noise, and flexibly design the upper and lower fan blade structures according to the boundary conditions.
本發明之上述目的及其結構與功能上的特性，將依據所附圖式之較佳實施例予以說明。
請參閱第1、2、2a、3、3a圖，係為本發明之離心風扇扇葉結構第一實施例之立體及俯視圖及仰視圖及局部放大圖，如圖所示，所述離心風扇扇葉結構1，係包含：一輪轂11、一第一扇葉體組12、一第二扇葉體組13；
所述輪轂11具有一延伸部111，該延伸部111具有一第一側1111及一第二側1112，該延伸部111由該輪轂11周側向相反該輪轂11方向延伸所構形。
所述第一扇葉體組12設於前述第一側1111，該第一扇葉體組12具有複數第一扇葉體121，該等第一扇葉體121間具有一第一進風口122及一第一出風口123，該等第一出風口123係呈非等距設置。
所述第二扇葉體組13設於前述第二側1112，該第二扇葉體組13具有複數第二扇葉體131，該等第二扇葉體131間具有一第二進風口132及一第二出風口133，該等第二出風口133係呈等距設置。
所述第一扇葉體組12由該延伸部111之第一側1111向相反該輪轂11之方向延伸所構形，該等第一扇葉體121具有一第一端1211及一第二端1212，該第一進風口122係由兩相鄰第一扇葉體121之第一端1211共同界定，該第一出風口123係由兩相鄰之第二端1212共同界定，所述第二扇葉體組13由該延伸部111之第二側1112向相反該輪轂11之方向延伸所構形，該等第二扇葉體131具有一第三端1311及一第四端1312，該第二進風口132係由兩相鄰之第三端1311共同界定，該第二出風口133係由兩相鄰之第四端1312共同界定所構形。
該等第一端1211共同定義一第一節圓124，並該第一節圓124與該第一端1211相交切線方向具有一第一切線125，該第一扇葉體121定義一第一扇葉體中線1213，該第一扇葉體中線1213與該第一端1211相交切線方向具有一第二切線126，該第二切線126與該第一切線125相交並共同界定一第一入風角12a，該等第二端1212共同定義一第二節圓127，並該第二節圓127與該第二端1212相交切線方向具有一第三切線128，該第一扇葉體中線1213與前述第二端1212相交切線方向具有一第四切線129，該第三、四切線128、129共同界定一第一出風角12b，該等第三端1311共同定義一第三節圓134，並該第三節圓134與該第三端1311相交切線方向具有一第五切線135，該第二扇葉體131定義一第二扇葉體中線1313，該第二扇葉體中線1313與該第三端1311相交切線方向具有一第六切線136，該第五切線135與該第六切線136相交並共同界定一第二入風角13a，該等第四端1312共同定義一第四節圓137，並該第四節圓137與該第四端1312相交切線方向具有一第七切線138，該第二扇葉體中線1313與該第四端1312相交切線方向具有一第八切線139，該第七、八切線138、139共同界定一第二出風角13b，本實施例之第一入風角12a係大於或等於前述第二入風角13a。
前述第一、二扇葉體軸線1213、1313，隨該等第一、二扇葉體121、131延伸且具有相同之曲率，第一、二扇葉體軸線1213、1313係分別為該等第一、二扇葉體121、131縱向厚度之中線，即若以第一扇葉體中線1213為基準，則由該第一扇葉體中線1213向該第一扇葉體中線1213兩側延伸之寬度即為相等同之寬度，反之第二扇葉體中線1313與該第二扇葉體131之關係亦與第一扇葉體中線1213與該第一扇葉體131之關係相同。
請參閱第4、5圖，係為本發明之離心風扇扇葉結構第二實施例之俯視圖及仰視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為所述第一出風角12b係小於或等於前述第二出風角13b。
請參閱第6、7圖，係為本發明之離心風扇扇葉結構第三實施例之俯視圖及仰視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為所述第一入風角12a係小於或等於前述第二入風角13a。
請參閱第8、9圖，係為本發明之離心風扇扇葉結構第四實施例之俯視圖及仰視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為所述第一出風角12b係大於或等於前述第二出風角13b。
請參閱第10圖，係為本發明之離心風扇扇葉結構第五實施例之側視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為所述第二端1212之高度係大於該第四端1312之高度。
請參閱第11圖，係為本發明之離心風扇扇葉結構第六實施例之側視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為所述第四端1312之高度係大於該第二端1212之高度。
請參閱第12圖，係為本發明之離心風扇扇葉結構第七實施例之俯視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為該等第一扇葉體121之長度係大於該等第二扇葉體131之長度。
請參閱第13圖，係為本發明之離心風扇扇葉結構第八實施例之俯視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為該等第二扇葉體131之長度係大於該等第一扇葉體121之長度。
請參閱第14圖，係為本發明之離心風扇扇葉結構第九實施例之俯視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為第一端1211係與該等第三端1311相對應，並該第一、二出風口123、133不相互對應。
請參閱第15圖，係為本發明之離心風扇扇葉結構第十實施例之俯視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為該等第一端1211係與該等第三端1311不相對應，並該第一、二進風口122、132不相互對應。
請參閱第16圖，係為本發明之離心風扇扇葉結構第十一實施例之俯視圖，如圖所示，本實施例部分結構係與前述第十實施例相同故在此將不再贅述，惟本實施例與前述第十實施例之不同處係為該等第一端1211係與該等第三端1311不相對應，並該第一、二進風口122、132不相互對應。
請參閱第17圖，係為本發明之離心風扇扇葉結構第十二實施例之俯視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為該等第一扇葉體121數量多於該等第二扇葉體數量131。
請參閱第18圖，係為本發明之離心風扇扇葉結構第十三實施例之俯視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為該等第二扇葉體131數量多於該等第一扇葉體數量121。
請參閱第19圖，係為本發明之離心風扇扇葉結構第十四實施例之俯視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為該等第一出風口123係呈等距設置，該等第二出風口133係呈非等距設置，本實施例亦可搭配前述第二～十三實施例之所揭露之結構技術特徵作為其他變換實施態樣。
請參閱第20圖，係為本發明之離心風扇扇葉結構第十五實施例之俯視圖，如圖所示，本實施例部分結構係與前述第一實施例相同故在此將不再贅述，惟本實施例與前述第一實施例之不同處係為該等第一出風口123係呈非等距設置，該等第二出風口133係呈非等距設置，本實施例亦可搭配前述第二～十三實施例之所揭露之結構技術特徵作為其他變換實施態樣。
The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.
Please refer to Figures 1, 2, 2a, 3, and 3a, which are perspective and top views, and a bottom view and a partial enlarged view of the first embodiment of the centrifugal fan blade structure of the present invention. As shown, the centrifugal fan fan is shown. The leaf structure 1 comprises: a hub 11, a first blade body group 12, and a second blade body group 13;
The hub 11 has an extending portion 111 having a first side 1111 and a second side 1112. The extending portion 111 is configured to extend from the circumferential side of the hub 11 in a direction opposite to the hub 11.
The first blade body group 12 is disposed on the first side 1111, and the first blade body group 12 has a plurality of first blade body 121. The first blade body 121 has a first air inlet 122 therebetween. And a first air outlet 123, the first air outlets 123 are arranged at a non-equal distance.
The second blade body group 13 is disposed on the second side 1112. The second blade body group 13 has a plurality of second blade bodies 131. The second blade body 131 has a second air inlet 132 therebetween. And a second air outlet 133, the second air outlets 133 are arranged at equal intervals.
The first blade body group 12 is configured by extending from the first side 1111 of the extending portion 111 in a direction opposite to the hub 11. The first blade body 121 has a first end 1211 and a second end. 1212, the first air inlet 122 is defined by a first end 1211 of two adjacent first blade bodies 121. The first air outlet 123 is defined by two adjacent second ends 1212, and the second The second blade body 131 has a third end 1311 and a fourth end 1312. The second blade body 131 has a third end 1311 and a fourth end 1312. The second blade body 131 has a third end 1311 and a fourth end 1312. The two air inlets 132 are defined by two adjacent third ends 1311, and the second air outlets 133 are defined by two adjacent fourth ends 1312.
The first end 1211 defines a first pitch circle 124, and the first pitch circle 124 intersects the first end 1211 in a tangential direction with a first tangent 125, and the first blade body 121 defines a first The first blade body center line 1213 intersects the first end 1211 in a tangential direction with a second tangent line 126. The second tangent line 126 intersects the first tangent line 125 and defines a first a second wind direction 12a, the second end 1212 defines a second pitch circle 127, and the second pitch circle 127 intersects the second end 1212 in a tangential direction with a third tangent line 128. The first blade body The center line 1213 intersects with the second end 1212 in a tangential direction and has a fourth tangent line 129. The third and fourth tangent lines 128 and 129 together define a first air outlet angle 12b. The third end 1311 defines a third section. a circle 134, and the third pitch 134 intersects the third end 1311 in a tangential direction with a fifth tangent line 135, the second blade body 131 defines a second blade body center line 1313, the second blade body The center line 1313 intersects the third end 1311 in a tangential direction with a sixth tangent line 136, and the fifth tangent line 135 is opposite to the sixth tangent line 136. And together define a second air inlet angle 13a, the fourth end 1312 defines a fourth pitch circle 137, and the fourth pitch circle 137 intersects with the fourth end 1312 in a tangential direction with a seventh tangent line 138. The second blade body center line 1313 intersects the fourth end 1312 in a tangential direction with an eighth tangent line 139. The seventh and eighth tangent lines 138, 139 together define a second air outlet angle 13b. The wind angle 12a is greater than or equal to the aforementioned second air inlet angle 13a.
The first and second blade body axes 1213 and 1313 extend along the first and second blade bodies 121 and 131 and have the same curvature, and the first and second blade body axes 1213 and 1313 are respectively The longitudinal thickness of the first and second blade bodies 121 and 131, that is, if the first blade body center line 1213 is used as the reference, the first blade body center line 1213 is directed to the first blade body center line 1213. The width of the two sides extending is the same width, and the relationship between the second blade body center line 1313 and the second blade body 131 is also the same with the first blade body center line 1213 and the first blade body 131. The relationship is the same.
4 and 5 are a plan view and a bottom view of a second embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the structure of the embodiment is the same as that of the first embodiment described above. It is not described again, but the difference between this embodiment and the foregoing first embodiment is that the first air outlet angle 12b is less than or equal to the second air outlet angle 13b.
Please refer to FIGS. 6 and 7 for a top view and a bottom view of a third embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the partial structure of the embodiment is the same as that of the first embodiment described above. It is not described again, but the difference between this embodiment and the foregoing first embodiment is that the first air inlet angle 12a is less than or equal to the second air inlet angle 13a.
Please refer to FIGS. 8 and 9 for a top view and a bottom view of a fourth embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the partial structure of the embodiment is the same as that of the first embodiment described above. It is not described again, but the difference between this embodiment and the foregoing first embodiment is that the first air outlet angle 12b is greater than or equal to the second air outlet angle 13b.
FIG. 10 is a side view of the fifth embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the structure of the embodiment is the same as that of the first embodiment, and thus will not be further described herein. The difference between this embodiment and the foregoing first embodiment is that the height of the second end 1212 is greater than the height of the fourth end 1312.
FIG. 11 is a side view of the sixth embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the structure of the embodiment is the same as that of the first embodiment, and thus will not be further described herein. The difference between this embodiment and the foregoing first embodiment is that the height of the fourth end 1312 is greater than the height of the second end 1212.
Referring to FIG. 12, it is a plan view of a seventh embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the structure of the embodiment is the same as that of the first embodiment, and therefore will not be further described herein. The difference between this embodiment and the first embodiment is that the length of the first blade body 121 is greater than the length of the second blade body 131.
FIG. 13 is a plan view of the eighth embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the structure of the embodiment is the same as that of the first embodiment, and therefore will not be further described herein. The difference between this embodiment and the foregoing first embodiment is that the length of the second blade body 131 is greater than the length of the first blade body 121.
FIG. 14 is a plan view showing a ninth embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the structure of the embodiment is the same as that of the first embodiment, and therefore will not be further described herein. The difference between this embodiment and the foregoing first embodiment is that the first end 1211 corresponds to the third end 1311, and the first and second air outlets 123, 133 do not correspond to each other.
FIG. 15 is a plan view showing a tenth embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the structure of the embodiment is the same as that of the first embodiment, and therefore will not be further described herein. The difference between this embodiment and the foregoing first embodiment is that the first ends 1211 do not correspond to the third ends 1311, and the first and second air inlets 122, 132 do not correspond to each other.
FIG. 16 is a plan view of the eleventh embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the partial structure of the embodiment is the same as that of the foregoing tenth embodiment, and thus will not be further described herein. The difference between this embodiment and the foregoing tenth embodiment is that the first ends 1211 do not correspond to the third ends 1311, and the first and second air inlets 122, 132 do not correspond to each other.
FIG. 17 is a plan view showing a twelfth embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the partial structure of the embodiment is the same as that of the first embodiment, and thus will not be further described herein. However, the difference between this embodiment and the foregoing first embodiment is that the number of the first blade bodies 121 is greater than the number of the second blade bodies 131.
FIG. 18 is a plan view of the thirteenth embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the structure of the embodiment is the same as that of the foregoing first embodiment, and thus will not be further described herein. However, the difference between this embodiment and the foregoing first embodiment is that the number of the second blade bodies 131 is greater than the number of the first blade bodies 121.
FIG. 19 is a plan view of the fourteenth embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the partial structure of the embodiment is the same as that of the first embodiment, and thus will not be further described herein. The difference between the first embodiment and the first embodiment is that the first air outlets 123 are equidistantly disposed, and the second air outlets 133 are non-equally disposed. The structural features disclosed in the second to thirteenth embodiments are other embodiments.
FIG. 20 is a plan view of the fifteenth embodiment of the centrifugal fan blade structure of the present invention. As shown in the figure, the structure of the embodiment is the same as that of the first embodiment, and thus will not be further described herein. The difference between the first embodiment and the first embodiment is that the first air outlets 123 are not equidistantly disposed, and the second air outlets 133 are non-equally disposed. The structural features disclosed in the second to thirteenth embodiments are other embodiments.
1．．．離心風扇扇葉結構1. . . Centrifugal fan blade structure
11．．．輪轂11. . . Wheel hub
111．．．延伸部111. . . Extension
1111．．．第一側1111. . . First side
1112．．．第二側1112. . . Second side
12．．．第一扇葉體組12. . . First leaf body group
12a．．．第一入風角12a. . . First air inlet angle
12b．．．第一出風角12b. . . First outlet angle
121．．．第一扇葉體121. . . First leaf body
1211．．．第一端1211. . . First end
1212．．．第二端1212. . . Second end
1213．．．第一扇葉體中線1213. . . First leaf blade midline
122．．．第一進風口122. . . First air inlet
123．．．第一出風口123. . . First air outlet
124．．．第一節圓124. . . First round
125．．．第一切線125. . . First line
126．．．第二切線126. . . Second tangent
127．．．第二節圓127. . . Second round
128．．．第三切線128. . . Third tangent
129．．．第四切線129. . . Fourth tangent
13．．．第二扇葉體組13. . . Second leaf body group
13a．．．第二入風角13a. . . Second air inlet angle
13b．．．第二出風角13b. . . Second outlet angle
131．．．第二扇葉體131. . . Second leaf body
1311．．．第三端1311. . . Third end
1312．．．第四端1312. . . Fourth end
1313．．．第二扇葉體中線1313. . . Second leaf blade midline
132．．．第二進風口132. . . Second air inlet
133．．．第二出風口133. . . Second outlet
134．．．第三節圓134. . . Third quarter
135．．．第五切線135. . . Fifth tangent
136．．．第六切線136. . . Sixth tangent
137．．．第四節圓137. . . Fourth quarter
138．．．第七切線138. . . Seventh tangent
139．．．第八切線139. . . Eighth tangent
第1圖係為本發明之離心風扇扇葉結構第一實施例之立體圖；
第2圖係為本發明之離心風扇扇葉結構第一實施例之俯視圖；
第2a圖係為本發明之離心風扇扇葉結構第一實施例之局部放大圖；
第3圖係為本發明之離心風扇扇葉結構第一實施例之仰視圖；
第3a圖係為本發明之離心風扇扇葉結構第一實施例之局部放大圖；
第4圖係為本發明之離心風扇扇葉結構第二實施例之俯視圖；
第5圖係為本發明之離心風扇扇葉結構第二實施例之仰視圖；
第6圖係為本發明之離心風扇扇葉結構第三實施例之俯視圖；
第7圖係為本發明之離心風扇扇葉結構第三實施例之仰視圖；
第8圖係為本發明之離心風扇扇葉結構第四實施例之俯視圖；
第9圖係為本發明之離心風扇扇葉結構第四實施例之仰視圖；
第10圖係為本發明之離心風扇扇葉結構第五實施例之側視圖；
第11圖係為本發明之離心風扇扇葉結構第六實施例之側視圖；
第12圖係為本發明之離心風扇扇葉結構第七實施例之俯視圖；
第13圖係為本發明之離心風扇扇葉結構第八實施例之側視圖；
第14圖係為本發明之離心風扇扇葉結構第九實施例之俯視圖；
第15圖係為本發明之離心風扇扇葉結構第十實施例之俯視圖；
第16圖係為本發明之離心風扇扇葉結構第十一實施例之俯視圖；
第17圖係為本發明之離心風扇扇葉結構第十二實施例之俯視圖；
第18圖係為本發明之離心風扇扇葉結構第十三實施例之俯視圖；
第19圖係為本發明之離心風扇扇葉結構第十四實施例之俯視圖；
第20圖係為本發明之離心風扇扇葉結構第十五實施例之俯視圖。
1 is a perspective view of a first embodiment of a centrifugal fan blade structure of the present invention;
Figure 2 is a plan view showing a first embodiment of the centrifugal fan blade structure of the present invention;
2a is a partial enlarged view of the first embodiment of the centrifugal fan blade structure of the present invention;
Figure 3 is a bottom view of the first embodiment of the centrifugal fan blade structure of the present invention;
Figure 3a is a partial enlarged view of the first embodiment of the centrifugal fan blade structure of the present invention;
Figure 4 is a plan view showing a second embodiment of the centrifugal fan blade structure of the present invention;
Figure 5 is a bottom plan view showing a second embodiment of the centrifugal fan blade structure of the present invention;
Figure 6 is a plan view showing a third embodiment of the centrifugal fan blade structure of the present invention;
Figure 7 is a bottom plan view showing a third embodiment of the centrifugal fan blade structure of the present invention;
Figure 8 is a plan view showing a fourth embodiment of the centrifugal fan blade structure of the present invention;
Figure 9 is a bottom plan view showing a fourth embodiment of the centrifugal fan blade structure of the present invention;
Figure 10 is a side view of a fifth embodiment of the centrifugal fan blade structure of the present invention;
Figure 11 is a side view showing a sixth embodiment of the centrifugal fan blade structure of the present invention;
Figure 12 is a plan view showing a seventh embodiment of the centrifugal fan blade structure of the present invention;
Figure 13 is a side view of the eighth embodiment of the centrifugal fan blade structure of the present invention;
Figure 14 is a plan view showing a ninth embodiment of the centrifugal fan blade structure of the present invention;
Figure 15 is a plan view showing a tenth embodiment of the centrifugal fan blade structure of the present invention;
Figure 16 is a plan view showing the eleventh embodiment of the centrifugal fan blade structure of the present invention;
Figure 17 is a plan view showing a twelfth embodiment of the centrifugal fan blade structure of the present invention;
Figure 18 is a plan view showing a thirteenth embodiment of the centrifugal fan blade structure of the present invention;
Figure 19 is a plan view showing a fourteenth embodiment of the centrifugal fan blade structure of the present invention;
Figure 20 is a plan view showing a fifteenth embodiment of the centrifugal fan blade structure of the present invention.
1．．．離心風扇扇葉結構1. . . Centrifugal fan blade structure
11．．．輪轂11. . . Wheel hub
111．．．延伸部111. . . Extension
1111．．．第一側1111. . . First side
1112．．．第二側1112. . . Second side
12．．．第一扇葉體組12. . . First leaf body group
121．．．第一扇葉體121. . . First leaf body
122．．．第一進風口122. . . First air inlet
123．．．第一出風口123. . . First air outlet
13．．．第二扇葉體組13. . . Second leaf body group
131．．．第二扇葉體131. . . Second leaf body
132．．．第二進風口132. . . Second air inlet
133．．．第二出風口133. . . Second outlet
Claims (31)
一輪轂，具有一延伸部，該延伸部具有一第一側及一第二側；
一第一扇葉體組，設於前述第一側，該第一扇葉體組具有複數第一扇葉體，該等第一扇葉體間具有一第一進風口及一第一出風口，該等第一出風口係呈非等距設置；
一第二扇葉體組，設於前述第二側，該第二扇葉體組具有複數第二扇葉體，該等第二扇葉體間具有一第二進風口及一第二出風口。A centrifugal fan blade structure comprising:
a hub having an extension having a first side and a second side;
a first blade body group is disposed on the first side, the first blade body group has a plurality of first blade bodies, and the first blade body has a first air inlet and a first air outlet The first air outlets are non-equidistant;
a second blade body group is disposed on the second side, the second blade body group has a plurality of second blade bodies, and the second blade body has a second air inlet and a second air outlet .
一輪轂，具有一延伸部，該延伸部具有一第一側及一第二側；
一第一扇葉體組，設於前述第一側，該第一扇葉體組具有複數第一扇葉體，該等第一扇葉體間具有一第一進風口及一第一出風口，該等第一出風口係呈等距設置；
一第二扇葉體組，設於前述第二側，該第二扇葉體組具有複數第二扇葉體，該等第二扇葉體間具有一第二進風口及一第二出風口，該等第二出風口係呈非等距設置。A centrifugal fan blade structure comprising:
a hub having an extension having a first side and a second side;
a first blade body group is disposed on the first side, the first blade body group has a plurality of first blade bodies, and the first blade body has a first air inlet and a first air outlet The first air outlets are arranged equidistantly;
a second blade body group is disposed on the second side, the second blade body group has a plurality of second blade bodies, and the second blade body has a second air inlet and a second air outlet The second air outlets are non-equidistant.
The centrifugal fan blade structure of claim 17, wherein the number of the second blade bodies is greater than the number of the first blade bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101131085A TWI509156B (en) | 2012-08-28 | 2012-08-28 | Fan impeller structure of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101131085A TWI509156B (en) | 2012-08-28 | 2012-08-28 | Fan impeller structure of centrifugal fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201408883A true TW201408883A (en) | 2014-03-01 |
| TWI509156B TWI509156B (en) | 2015-11-21 |
Family
ID=50820280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101131085A TWI509156B (en) | 2012-08-28 | 2012-08-28 | Fan impeller structure of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI509156B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288922A (en) * | 2017-07-13 | 2017-10-24 | 广东美的厨房电器制造有限公司 | Dislocation impeller and range hood used for range hood |
| CN107288923A (en) * | 2017-07-13 | 2017-10-24 | 广东美的厨房电器制造有限公司 | Lampblack absorber impeller and lampblack absorber |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI314183B (en) * | 2005-11-11 | 2009-09-01 | Delta Electronics Inc | Centrifugal fan and impeller thereof |
| JP2010285956A (en) * | 2009-06-12 | 2010-12-24 | Sanyo Denki Co Ltd | Centrifugal fan |
| CN201779060U (en) * | 2010-08-12 | 2011-03-30 | 浙江双阳风机有限公司 | Centrifugal fan impeller |
| TWM418176U (en) * | 2011-04-01 | 2011-12-11 | Delta Electronics Inc | Impeller |
| TWM431957U (en) * | 2011-09-16 | 2012-06-21 | Asia Vital Components Co Ltd | Impeller structure for centrifugal fan |
| TWM436313U (en) * | 2012-03-22 | 2012-08-21 | Delta Electronics Inc | Centrifugal fan |
-
2012
- 2012-08-28 TW TW101131085A patent/TWI509156B/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288922A (en) * | 2017-07-13 | 2017-10-24 | 广东美的厨房电器制造有限公司 | Dislocation impeller and range hood used for range hood |
| CN107288923A (en) * | 2017-07-13 | 2017-10-24 | 广东美的厨房电器制造有限公司 | Lampblack absorber impeller and lampblack absorber |
| CN107288923B (en) * | 2017-07-13 | 2020-08-25 | 广东美的厨房电器制造有限公司 | Impeller and lampblack absorber for lampblack absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI509156B (en) | 2015-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9777742B2 (en) | Centrifugal fan impeller structure | |
| US20140072434A1 (en) | Fan impeller structure of centrifugal fan | |
| JP7092433B2 (en) | Forward / reverse rotation fan | |
| US20140127024A1 (en) | Centrifugal fan impeller structure | |
| CN204512009U (en) | Catch fan and blower fan | |
| TWI464328B (en) | Fan structure | |
| US10400605B2 (en) | Turbofan and indoor unit for air conditioning apparatus | |
| JPWO2018003120A1 (en) | Propeller fan | |
| JP3179754U (en) | Centrifugal fan blade structure | |
| US20130216369A1 (en) | Centrifugal fan | |
| CN103629154A (en) | Centrifugal fan blade structure | |
| TWI509156B (en) | Fan impeller structure of centrifugal fan | |
| JP4687675B2 (en) | Cross-flow blower and air conditioner | |
| WO2015146007A1 (en) | Air-blowing device | |
| US10519978B2 (en) | Blade of a ventilator wheel, ventilator wheel and axial ventilator | |
| CN102966591B (en) | Axial flow type fluid driving device | |
| TWM444549U (en) | Blade structure for centrifugal fan | |
| RU2617636C1 (en) | Impeller of radial-blade fan | |
| TWM469387U (en) | Improved wind blade flow enhancement structure of axial-flow fan hub | |
| CN103775378B (en) | Centrifugal fan impeller structure | |
| TWM448571U (en) | Centrifugal fan blade structure | |
| TWM448572U (en) | Improved centrifugal fan blade structure | |
| TWM529763U (en) | Flow rate enhanced composite blade structure of axial fan | |
| US10876542B2 (en) | Axial flow fan | |
| CN202707605U (en) | Fan blade structure for centrifugal fan |