TWM635263U - Fan wheel and heat-dissipation fan having the fan wheel - Google Patents

Abstract

一種扇輪及具有該扇輪之散熱風扇，用以解決習知扇輪氣流流動順暢度不佳的問題。該扇輪係包含：一輪轂；數個扇葉，環繞該輪轂設置，各該扇葉具有相對的一葉根端及一葉尾端，各該葉根端連接該輪轂，各該扇葉具有一迎風面及一背風面；及數個凸粒，分布於該數個扇葉，各該扇葉的迎風面或/及背風面具有至少一該凸粒，該凸粒的外徑為該扇葉最大高度的30~80%。 A fan wheel and a cooling fan with the fan wheel are used to solve the problem of poor airflow smoothness of the conventional fan wheel. The fan wheel system includes: a hub; several fan blades are arranged around the hub, each of the fan blades has a root end and a tail end opposite to each other, each of the root ends of the blade is connected to the hub, and each of the fan blades has a windward and a leeward side; and several convex grains, distributed on the several fan blades, each of the fan blades has at least one convex grain on the windward side or/and the leeward side, and the outer diameter of the convex grains is the largest of the fan blades. 30~80% of the height.

Description

扇輪及具有該扇輪之散熱風扇 Fan wheel and cooling fan with the fan wheel

本創作係關於一種驅風裝置，尤其是一種扇輪及具有該扇輪之散熱風扇。 The invention relates to a wind driving device, in particular to a fan wheel and a cooling fan with the fan wheel.

習知的扇輪可以由一轉軸連接一輪轂，該輪轂具有一側牆，該扇輪的數個扇葉分別由一端連接該側牆的外壁；如此，具有該習知扇輪的散熱風散可組裝定位在如筆電、空調或通風設備等系統中，以藉由該數個扇葉驅風以產生氣流。 The known fan wheel can be connected to a hub by a rotating shaft, and the hub has a side wall, and several fan blades of the fan wheel are respectively connected to the outer wall of the side wall by one end; It can be assembled and positioned in systems such as laptops, air conditioners or ventilation equipment, so that the several fan blades drive wind to generate airflow.

上述習知的扇輪雖可用來帶動氣流；然而，由於該數個扇葉從葉根至葉尾的整個面係形成平整狀，使得氣流較大時易形成擾流，故流入兩相鄰扇葉之間的氣流將較為紊亂，造成氣流進出風扇的流動順暢度不佳，導致習知的扇輪風量難以有效地提升及運作噪音難以降低。 Although the above-mentioned known fan wheels can be used to drive the airflow; however, since the entire surface system of the several fan blades from the blade root to the blade tail forms a flat shape, it is easy to form a turbulent flow when the airflow is large, so it flows into two adjacent fans. The airflow between the blades will be relatively turbulent, resulting in poor flow of airflow in and out of the fan, making it difficult to effectively increase the air volume and reduce the operating noise of the conventional fan wheel.

有鑑於此，習知的扇輪確實仍有加以改善之必要。 In view of this, the known fan wheel really still needs to be improved.

為解決上述問題，本創作的目的是提供一種扇輪及具有該扇輪之散熱風扇，係可以提升風量、節省能源及降低風扇運作噪音者。 In order to solve the above problems, the purpose of this creation is to provide a fan wheel and a cooling fan with the fan wheel, which can increase the air volume, save energy and reduce the operating noise of the fan.

本創作的次一目的是提供一種扇輪及具有該扇輪之散熱風扇，係可以減少扇葉受到空氣阻力的影響產生震動或變形者。 The second purpose of this creation is to provide a fan wheel and a heat dissipation fan with the fan wheel, which can reduce vibration or deformation of the fan blades under the influence of air resistance.

本創作的又一目的是提供一種扇輪及具有該扇輪之散熱風扇， 係可以降低製造成本者。 Another purpose of this creation is to provide a fan wheel and a cooling fan with the fan wheel, Those who can reduce the manufacturing cost.

本創作的再一目的是提供一種扇輪及具有該扇輪之散熱風扇，係可以避免形成擾流或產生風切情形者。 Another purpose of this creation is to provide a fan wheel and a cooling fan with the fan wheel, which can avoid the formation of turbulence or wind shear.

本創作全文所述方向性或其近似用語，例如「前」、「後」、「左」、「右」、「上(頂)」、「下(底)」、「內」、「外」、「側面」等，主要係參考附加圖式的方向，各方向性或其近似用語僅用以輔助說明及理解本創作的各實施例，非用以限制本創作。 The directionality mentioned throughout this work or similar terms, such as "front", "back", "left", "right", "upper (top)", "lower (bottom)", "inner", "outer" , "side", etc., are mainly referring to the directions of the attached drawings. Each direction or its approximate terms are only used to assist in explaining and understanding the various embodiments of this creation, not to limit this creation.

本創作全文所記載的元件及構件使用「一」或「一個」之量詞，僅是為了方便使用且提供本創作範圍的通常意義；於本創作中應被解讀為包括一個或至少一個，且單一的概念也包括複數的情況，除非其明顯意指其他意思。 The use of the quantifiers "one" or "one" in the elements and components described throughout this creation is only for convenience and to provide the usual meaning of the scope of this creation; it should be interpreted in this creation as including one or at least one, and a single The notion of also includes the plural unless it is obvious that it means otherwise.

本創作全文所述「結合」、「組合」或「組裝」等近似用語，主要包含連接後仍可不破壞構件地分離，或是連接後使構件不可分離等型態，係本領域中具有通常知識者可以依據欲相連之構件材質或組裝需求予以選擇者。 Approximate terms such as "combination", "combination" or "assembly" mentioned in the full text of this work mainly include the types that can be separated without destroying the components after connection, or the components can not be separated after connection, etc., which are common knowledge in this field One can be selected according to the material of the components to be connected or assembly requirements.

本創作的扇輪，包含：一輪轂；數個扇葉，環繞該輪轂設置，各該扇葉具有相對的一葉根端及一葉尾端，各該葉根端連接該輪轂，各該扇葉具有一迎風面及一背風面；及數個凸粒，分布於該數個扇葉，各該扇葉的迎風面或/及背風面具有至少一該凸粒，該凸粒的外徑為該扇葉最大高度的30~80%。 The fan wheel of this creation includes: a hub; several fan blades are arranged around the hub, each of the fan blades has a root end and a tail end opposite to each other, each of the root ends of the blades is connected to the hub, and each of the fan blades has a a windward side and a leeward side; and a plurality of convex grains distributed on the plurality of fan blades, each of the fan blades has at least one convex grain on the windward side or/and the leeward side, and the outer diameter of the convex grains is 30-80% of the maximum leaf height.

本創作的扇輪，包含：一輪轂；數個扇葉，環繞該輪轂設置，各該扇葉具有相對的一葉根端及一葉尾端，各該葉根端連接該輪轂，各該扇葉具有一迎風面及一背風面；及數個凸粒，分布於該數個扇葉，該數個凸粒位於該葉根端及該葉尾端之間且較鄰近該葉尾端，各該扇葉具有至少一該凸 粒，各該凸粒具有一凸出面及一凹陷面，該凸出面位於該迎風面，該凹陷面位於該背風面。 The fan wheel of this creation includes: a hub; several fan blades are arranged around the hub, each of the fan blades has a root end and a tail end opposite to each other, each of the root ends of the blades is connected to the hub, and each of the fan blades has a a windward side and a leeward side; and a plurality of convex grains distributed on the plurality of fan blades, the plurality of convex grains are located between the root end of the blade and the tail end of the blade and are closer to the tail end of the blade, each of the fan blades leaves have at least one convex grains, each of the convex grains has a convex surface and a concave surface, the convex surface is located on the windward side, and the concave surface is located on the leeward side.

本創作的散熱風扇，包含：一扇框，具有一基座，該基座具有一軸管；一定子，位於該軸管的外周；及一如前述之扇輪，該扇輪可旋轉地設於該軸管。 The heat dissipation fan of this creation includes: a fan frame with a base, and the base has a shaft tube; a stator, located on the outer periphery of the shaft tube; and a fan wheel as mentioned above, which is rotatably arranged on The axle tube.

據此，本創作的扇輪及具有該扇輪之散熱風扇，利用各該扇葉的迎風面或/及背風面具有至少一該凸粒，且該凸粒的外徑為該扇葉最大高度的30~80%，流入兩相鄰扇葉之間的氣流可以流經各該凸粒，如此，係可以避免形成擾流或產生風切的情形，進而可以減低氣流過大所造成的噪音，同時可以確保該數個扇葉所旋出之氣流較不受阻礙，即使馬達在低轉速，該數個扇葉受亦能產生有效氣流流動，以維持預定之風量，係可以具有提升風量、節省能源及降低風扇運作噪音的功效。 Accordingly, the fan wheel of the present invention and the cooling fan having the fan wheel utilize at least one convex particle on the windward side or/and the leeward side of each fan blade, and the outer diameter of the convex particle is equal to the maximum height of the fan blade 30~80% of the air flow between two adjacent fan blades can flow through the bumps, so that the formation of turbulent flow or wind shear can be avoided, and the noise caused by excessive air flow can be reduced. At the same time It can ensure that the airflow rotated by the several fan blades is relatively unimpeded. Even if the motor is at a low speed, the several fan blades can also generate effective air flow to maintain the predetermined air volume, which can increase the air volume and save energy. And the effect of reducing the noise of the fan operation.

其中，該數個凸粒可以位於各該扇葉的迎風面。如此，該結構簡易而便於製造，係具有降低製造成本的功效。 Wherein, the plurality of protrusions may be located on the windward side of each fan blade. In this way, the structure is simple and easy to manufacture, and has the effect of reducing manufacturing cost.

其中，各該凸粒與該凸粒所在表面之間可以具有一最大凸出距離，該最大凸出距離可以為0.25~0.5mm。如此，氣流可易於流經該凸粒表面，係具有使氣流流動順暢的功效。 Wherein, there may be a maximum protrusion distance between each of the bumps and the surface where the bumps are located, and the maximum protrusion distance may be 0.25-0.5 mm. In this way, the airflow can easily flow through the surface of the bumps, which has the effect of making the airflow flow smoothly.

其中，各該凸粒可以具有一中心點，該扇葉於通過該中心點處可以具有一扇葉高度，該凸粒與該扇葉的一底緣之間可以具有一最小距離，該最小距離可以小於或等於該扇葉高度的1/4。如此，該結構簡易而便於製造，係具有降低製造成本的功效。 Wherein, each of the bumps may have a central point, and the fan blade may have a blade height passing through the center point, and there may be a minimum distance between the bump and a bottom edge of the fan blade, and the minimum distance Can be less than or equal to 1/4 of the fan blade height. In this way, the structure is simple and easy to manufacture, and has the effect of reducing manufacturing cost.

其中，該凸粒可以為半球形或1/4球型。如此，氣流可易於流經該凸粒表面，係具有使氣流流動順暢的功效。 Wherein, the bumps can be hemispherical or 1/4 spherical. In this way, the airflow can easily flow through the surface of the bumps, which has the effect of making the airflow flow smoothly.

其中，該扇輪可以具有一扇輪外徑，位於各該扇葉的凸粒數量 各為數個，相鄰的二凸粒之間可以具有一間隙，該間隙可以為大於或等於0.5mm。如此，係可以具有足夠的間隙供氣流通過，係具有使氣流流動順暢的功效。 Wherein, the fan wheel can have a fan wheel outer diameter, and the number of convex grains located at each fan blade Each is several, and there may be a gap between two adjacent bumps, and the gap may be greater than or equal to 0.5mm. In this way, the system can have enough gaps for the passage of airflow, and the system has the effect of making the airflow flow smoothly.

其中，位於各該扇葉的數個凸粒的尺寸可以為相同。如此，該結構簡易而便於製造，係具有降低製造成本的功效。 Wherein, the sizes of the protrusions located on each fan blade may be the same. In this way, the structure is simple and easy to manufacture, and has the effect of reducing manufacturing cost.

其中，位於各該扇葉的數個凸粒的尺寸可以為至少二個不相同。如此，確保氣流可以流經其中至少一個凸粒，係具有避免形成擾流或產生風切情形的功效。 Wherein, at least two of the protrusions located on each fan blade may have different sizes. In this way, ensuring that the airflow can flow through at least one of the protrusions has the effect of avoiding the formation of turbulence or wind shear.

其中，該數個扇葉可以成放射狀地環繞該輪轂設置。如此，氣流可易於由各該扇葉之間流出，係具有使氣流流動順暢的功效。 Wherein, the several fan blades may be arranged radially around the hub. In this way, the airflow can easily flow out from between the fan blades, which has the effect of making the airflow flow smoothly.

其中，各該扇葉可以具有一後掠段及一前掠段，各該扇葉的後掠段可以連接該輪轂，各該前掠段可以成弧線狀，各該後掠段可以成直線狀或弧線狀。如此，氣流可易由該扇葉的前掠段流出，係具有使氣流流動順暢的功效。 Wherein, each of the fan blades can have a swept back section and a forward swept section, each of the swept back sections of the fan blades can be connected to the hub, each of the forward swept sections can be in an arc shape, and each of the back swept sections can be in a straight line or curved. In this way, the airflow can easily flow out from the forward-swept section of the fan blade, which has the effect of making the airflow flow smoothly.

其中，該數個凸粒可以位於各該扇葉的背風面。如此，該結構簡易而便於製造，係具有降低製造成本的功效。 Wherein, the plurality of protrusions may be located on the leeward side of each fan blade. In this way, the structure is simple and easy to manufacture, and has the effect of reducing manufacturing cost.

其中，該凸粒的外徑可以為1.5~3mm。如此，氣流可易於流經該凸粒表面，係具有使氣流流動順暢的功效。 Wherein, the outer diameter of the bumps may be 1.5-3mm. In this way, the airflow can easily flow through the surface of the bumps, which has the effect of making the airflow flow smoothly.

其中，該扇葉具可以有一虛擬線，該虛擬線至該葉尾端的徑向距離可以為該扇葉總長度的1/2，該凸粒可以位於該虛擬線及該葉尾端之間。如此，可以確保氣流先流經該數個凸粒再由該葉尾端流出，係具有避免形成擾流或產生風切情形的功效。 Wherein, the fan blade may have a virtual line, the radial distance from the virtual line to the tail end of the blade may be 1/2 of the total length of the fan blade, and the convex grain may be located between the virtual line and the tail end of the blade. In this way, it can be ensured that the airflow first flows through the several protrusions and then flows out from the tail end of the blade, which has the effect of avoiding the formation of turbulence or wind shear.

其中，該凸粒可以位於該葉根端及該葉尾端之間且較鄰近該葉尾端。如此，可以確保氣流先流經該數個凸粒再由該葉尾端流出，係具有避 免形成擾流或產生風切情形的功效。 Wherein, the bump can be located between the root end of the blade and the tail end of the blade and relatively close to the tail end of the blade. In this way, it can be ensured that the airflow first flows through the several bumps and then flows out from the tail end of the blade, which has the function of avoiding The effect of avoiding turbulence or wind shear.

本創作的扇輪可以另包含至少一連接環，該連接環可以連接該數個扇葉。如此，該連接環係可以穩定該數個扇葉的位置，可以避免各該扇葉於高速運轉下產生晃動，係具有減少各該扇葉受到空氣阻力的影響而產生震動或變形的功效。 The fan wheel of the present invention can further include at least one connecting ring, and the connecting ring can connect the plurality of fan blades. In this way, the connecting ring system can stabilize the positions of the plurality of fan blades, prevent the fan blades from swaying under high-speed operation, and has the effect of reducing vibration or deformation of the fan blades due to the influence of air resistance.

其中，該連接環可以位於該葉尾端或位於該葉根端與該葉尾端之間。如此，可以確保該連接環係具有足夠的強度穩定各該扇葉，係具有提升該扇輪旋轉穩定性的功效。 Wherein, the connecting ring may be located at the blade tail end or between the blade root end and the blade tail end. In this way, it can be ensured that the connecting ring system has sufficient strength to stabilize the fan blades, which has the effect of improving the rotation stability of the fan wheel.

〔本創作〕 [this creation]

1:輪轂 1: hub

11:環牆 11: ring wall

12:板體 12: board body

2:扇葉 2: fan blade

2a:葉根端 2a: Root end of leaf

2b:葉尾端 2b: Leaf tail

2c:頂緣 2c: top edge

2d:底緣 2d: bottom edge

21:後掠段 21: Swept back section

22:前掠段 22: Swept forward

3:凸粒 3: Convex

3a:凸出面 3a: convex surface

3b:凹陷面 3b: concave surface

31:中心點 31: center point

4:連接環 4: Connection ring

5:扇框 5: fan frame

51:基座 51: base

511:軸管 511: shaft tube

6:定子 6: Stator

D:外徑 D: outer diameter

F1:迎風面 F1: windward side

F2:背風面 F2: Leeward side

H:扇葉高度 H: blade height

L1:徑向距離 L1: radial distance

L2:總長度 L2: total length

M:最大高度 M: maximum height

N:虛擬線 N: virtual line

P:扇輪 P: fan wheel

Q:最大凸出距離 Q: Maximum protrusion distance

R:旋轉方向 R: direction of rotation

S:最小距離 S: minimum distance

X:扇輪外徑 X: fan wheel outer diameter

Y:轉軸 Y: shaft

〔第1圖〕本創作散熱風扇一較佳實施例的分解立體圖。 [Fig. 1] An exploded perspective view of a preferred embodiment of the cooling fan of this invention.

〔第2圖〕本創作扇輪第一實施例的平面圖。 [Fig. 2] The plan view of the first embodiment of the fan wheel of this creation.

〔第3圖〕沿第2圖的A-A線剖面圖。 [Fig. 3] A sectional view taken along line A-A in Fig. 2.

〔第4圖〕沿第3圖的B-B線剖面圖。 [Fig. 4] A sectional view along the line B-B in Fig. 3.

〔第5圖〕本創作扇輪第二實施例的局部剖面圖。 [Fig. 5] the partial section view of the second embodiment of the fan wheel of this creation.

〔第6圖〕本創作扇輪第三實施例的局部剖面圖。 [the 6th figure] the partial sectional view of the third embodiment of the fan wheel of this creation.

〔第7圖〕本創作扇輪第三實施例數個凸粒的尺寸不同的局部剖面圖。 〔the 7th figure〕the third embodiment of the fan wheel of this creation is the different partial cross-sectional view of the size of several convex grains.

〔第8圖〕本創作扇輪第三實施例的平面圖。 [the 8th figure] the plane view of the third embodiment of the fan wheel of this creation.

〔第9圖〕本創作扇輪第四實施例的平面圖。 [Fig. 9] the plane view of the fourth embodiment of the fan wheel of this creation.

〔第10圖〕本創作扇輪第四實施例的局部剖面立體圖。 [Fig. 10] the partial section perspective view of the fourth embodiment of the fan wheel of this creation.

〔第11圖〕本創作扇輪第五實施例的平面圖。 [Fig. 11] the plane view of the fifth embodiment of the fan wheel of this creation.

為讓本創作之上述及其他目的、特徵及優點能更明顯易懂，下文特舉本創作之較佳實施例，並配合所附圖式作詳細說明；此外，在不同圖式中標示相同符號者視為相同，會省略其說明。 In order to make the above and other purposes, features and advantages of this creation more obvious and easy to understand, the preferred embodiments of this creation are specially cited below, and explained in detail with the accompanying drawings; in addition, the same symbols are marked in different drawings are considered the same, and their descriptions will be omitted.

請參照第2圖所示，其係本創作扇輪P的第一實施例，係包含一輪轂1、數個扇葉2及數個凸粒3，該數個扇葉2環繞該輪轂1設置，該數個凸粒3分布於該數個扇葉2。 Please refer to Fig. 2, which is the first embodiment of the fan wheel P of this creation, which includes a hub 1, several fan blades 2 and several bumps 3, and the several fan blades 2 are arranged around the hub 1 , the several bumps 3 are distributed on the several fan blades 2 .

請參照第1、2圖所示，該輪轂1的中央部位可以結合一轉軸Y，本創作不限制該輪轂1的材質與該輪轂1連接該轉軸Y的結構及方式。舉例而言，該輪轂1可以射出包覆結合該轉軸Y，或是以緊配或雷射銲接結合等方式結合該轉軸Y，在本實施例中，該輪轂1可選用金屬材質，並與該轉軸Y雷射銲接結合，使該輪轂1與該轉軸Y可穩固結合。該輪轂1可以具有一環牆11及一板體12，該轉軸Y連接該板體12，該環牆11連接於該板體12的周緣，該環牆11能夠用以結合該數個扇葉2。 Please refer to Figures 1 and 2, the central part of the wheel hub 1 can be combined with a rotating shaft Y, and the invention does not limit the material of the wheel hub 1 and the structure and method of connecting the wheel hub 1 to the rotating shaft Y. For example, the hub 1 can be combined with the shaft Y by injection coating, or combined with the shaft Y by tight fit or laser welding. In this embodiment, the hub 1 can be made of metal, and can be combined with the shaft Y The rotating shaft Y is combined by laser welding, so that the wheel hub 1 and the rotating shaft Y can be firmly combined. The hub 1 may have a ring wall 11 and a plate body 12, the rotating shaft Y is connected to the plate body 12, the ring wall 11 is connected to the periphery of the plate body 12, and the ring wall 11 can be used to combine the several fan blades 2 .

請參照第2、3圖所示，該數個扇葉2整體高度較佳不超出該輪轂1頂面，以減少該扇輪P的整體軸向高度。該數個扇葉2可以分別具有相對的一葉根端2a及一葉尾端2b，各該扇葉2係由該葉根端2a連接該輪轂1的環牆11，此外，該數個扇葉2可以具有相對的一頂緣2c及一底緣2d，該頂緣2c及該底緣2d之間的間距可以為等距，或由該葉根端2a朝該葉尾端2b漸擴，本創作均不加以限制，在本實施例中，該頂緣2c及該底緣2d之間的間距係由該葉根端2a朝該葉尾端2b漸擴，使該數個扇葉2能夠產生較大的風量。以及，各該扇葉2具有一迎風面F1及一背風面F2，該迎風面F1定義為該數個扇葉2朝向一旋轉方向R的一面，該背風面F2則定義為該數個扇葉2背向該旋轉方向R的一面。 Please refer to Figures 2 and 3, the overall height of the fan blades 2 is preferably not higher than the top surface of the hub 1, so as to reduce the overall axial height of the fan wheel P. The several fan blades 2 may respectively have opposite blade root ends 2a and a blade tail ends 2b, and each of the fan blades 2 is connected to the ring wall 11 of the hub 1 by the blade root ends 2a. There may be a top edge 2c and a bottom edge 2d opposite to each other, the distance between the top edge 2c and the bottom edge 2d may be equidistant, or gradually expand from the leaf root end 2a to the leaf tail end 2b. All are not limited, in this embodiment, the distance between the top edge 2c and the bottom edge 2d gradually expands from the blade root end 2a to the blade tail end 2b, so that the plurality of fan blades 2 can produce more Large air volume. And, each of the fan blades 2 has a windward side F1 and a leeward side F2, the windward side F1 is defined as the side of the plurality of fan blades 2 facing a rotation direction R, and the leeward side F2 is defined as the side of the plurality of fan blades 2 The side facing away from the direction of rotation R.

請參照第3圖所示，其中，本創作不限制該數個扇葉2的材 質，該數個扇葉2與該環牆11可以為相同材質或不同材質，且該數個扇葉2與該輪轂1可以卡扣、貼接、焊接、嵌合或一體成型相連接等，在本實施例中，該數個扇葉2與該輪轂1可由射出成型法一體相連，以提升結構強度及生產效率。又，各該扇葉2可以具有一虛擬線N，該虛擬線N至該葉尾端2b的徑向距離L1可以為該扇葉2總長度L2的1/2。 Please refer to shown in Fig. 3, wherein, this creation does not limit the material of these fan blades 2 quality, the several fan blades 2 and the ring wall 11 can be made of the same material or different materials, and the several fan blades 2 and the hub 1 can be buckled, bonded, welded, fitted or integrated, etc. In this embodiment, the plurality of fan blades 2 and the hub 1 can be integrally connected by injection molding to improve structural strength and production efficiency. Moreover, each fan blade 2 may have a virtual line N, and the radial distance L1 from the virtual line N to the blade tail end 2 b may be 1/2 of the total length L2 of the fan blade 2 .

請參照第3、4圖所示，各該扇葉2的迎風面F1或/及背風面F2具有至少一該凸粒3，即，該數個凸粒3可以位於該迎風面F1或該背風面F2，或者，該數個凸粒3可以同時位於該迎風面F1及該背風面F2，在本實施例中，該數個凸粒3係以位於該迎風面F1來做說明，使各該扇葉2的迎風面F1均可以具有一該凸粒3，該凸粒3的外徑D為該扇葉2最大高度M的30~80%，該凸粒3的外徑D可以為1.5~3mm，且該凸粒3可以位於該虛擬線N及該葉尾端2b之間，較佳地，該凸粒3可以位於該葉根端2a及該葉尾端2b之間且較鄰近該葉尾端2b，以確保氣流由該葉尾端2b流出時可以先流經該數個凸粒3，係可以避免形成擾流或產生風切的情形，進而可以減低氣流過大所造成的噪音，同時可以確保該數個扇葉2所旋出之氣流較不受阻礙，即使馬達在低轉速，該數個扇葉2受亦能產生有效氣流流動，以維持預定之風量。 Please refer to Figures 3 and 4, each fan blade 2 has at least one bump 3 on the windward side F1 or/and the leeward side F2, that is, the several bumps 3 can be located on the windward side F1 or the leeward side. Surface F2, or, these several convex grains 3 can be positioned at this windward surface F1 and this leeward surface F2 at the same time, and in this embodiment, these several convex grains 3 are described as being located at this windward surface F1, make each of the The windward surface F1 of the fan blade 2 may have a protruding bead 3, the outer diameter D of the protruding bead 3 is 30-80% of the maximum height M of the fan blade 2, and the outer diameter D of the protruding bead 3 may be 1.5-80%. 3mm, and the bump 3 can be located between the imaginary line N and the blade tail end 2b, preferably, the bump 3 can be located between the blade root end 2a and the blade tail end 2b and is closer to the blade Tail end 2b, to ensure that the airflow can flow through the several bumps 3 first when flowing out from the blade tail end 2b, which can avoid the formation of turbulent flow or wind shear, thereby reducing the noise caused by excessive airflow, and at the same time It can ensure that the airflow from the several fan blades 2 is not obstructed, even if the motor is at a low speed, the several fan blades 2 can also generate effective air flow to maintain a predetermined air volume.

其中，該凸粒3可以為半球形或1/4球型，以及，各該凸粒3與該凸粒3所在表面之間可以具有一最大凸出距離Q，在本實施例中，該凸粒3係位於該迎風面F1，該最大凸出距離Q係指各該凸粒3與該扇葉2的迎風面F1之間的距離，該最大凸出距離Q較佳可以為0.25~0.5mm，如此，均可以使氣流易於流經該凸粒3表面，係具有使氣流流動順暢的作用。此外，各該凸粒3可以具有一中心點31，該扇葉2於通過該中心點31處可以具有一扇葉高度H，由於位於該葉根端2a及該葉尾端2b之間且較鄰近該葉尾端 2b，且該頂緣2c及該底緣2d之間的間距係由該葉根端2a朝該葉尾端2b漸擴，因此，在本實施例中，該扇葉高度H係等於前述該扇葉2的最大高度M，該凸粒3與該扇葉2的底緣2d之間可以具有一最小距離S，該最小距離S較佳小於或等於該扇葉高度H的1/4，如此，亦可以使氣流易於流經該凸粒3表面，係具有使氣流流動順暢的作用。 Wherein, the bumps 3 can be hemispherical or 1/4 spherical, and there can be a maximum protruding distance Q between each bump 3 and the surface where the bumps 3 are located. In this embodiment, the bumps The grain 3 is located on the windward surface F1, and the maximum protruding distance Q refers to the distance between each convex grain 3 and the windward surface F1 of the fan blade 2, and the maximum protruding distance Q is preferably 0.25~0.5mm , so that the airflow can easily flow through the surface of the convex grain 3, and the system has the effect of making the airflow flow smoothly. In addition, each of the protrusions 3 may have a central point 31, and the blade 2 may have a blade height H passing through the central point 31, because it is located between the blade root end 2a and the blade tail end 2b and relatively near the end of the leaf 2b, and the distance between the top edge 2c and the bottom edge 2d gradually expands from the blade root end 2a to the blade tail end 2b. Therefore, in this embodiment, the height H of the fan blade is equal to the aforementioned fan blade The maximum height M of the blade 2, there may be a minimum distance S between the bump 3 and the bottom edge 2d of the fan blade 2, and the minimum distance S is preferably less than or equal to 1/4 of the height H of the fan blade, so, It is also possible to make the air flow easily flow through the surface of the bump 3, which has the effect of making the flow of air flow smooth.

請參照第2圖所示，特別說明的是，本創作扇輪P可以另包含至少一連接環4，該連接環4可以連接該數個扇葉2，該連接環4可以位於該葉尾端2b，該連接環4可以連接該數個扇葉2的頂緣2c或底緣2d，或者，亦可以選擇連接該頂緣2c與該底緣2d之間的任意位置，在本實施例中，該連接環4可以連接該頂緣2c，該連接環4係可以穩定該數個扇葉2的位置，以避免各該扇葉2於高速運轉下產生晃動，係可以減少該扇輪P旋轉中各該扇葉2受到空氣阻力的影響產生震動或變形。 Please refer to Figure 2, it is particularly noted that the fan wheel P of this invention can further include at least one connecting ring 4, which can connect the several fan blades 2, and the connecting ring 4 can be located at the tail end of the blade 2b, the connecting ring 4 can be connected to the top edge 2c or the bottom edge 2d of the plurality of fan blades 2, or can also choose to connect any position between the top edge 2c and the bottom edge 2d. In this embodiment, The connecting ring 4 can be connected to the top edge 2c, and the connecting ring 4 can stabilize the positions of the several fan blades 2, so as to avoid shaking of the fan blades 2 under high-speed operation, and can reduce the rotation of the fan wheel P. Each fan blade 2 vibrates or deforms under the influence of air resistance.

請參照第5圖所示，其係本創作扇輪P的第二實施例，本創作的第二實施例大致上同於上述的第一實施例，在該第二實施例中，各該凸粒3可以具有一凸出面3a及一凹陷面3b，該凸出面3a可以位於該迎風面F1，該凹陷面3b可以位於該背風面F2，使該凸粒3係形成整個等厚的態樣，如此，流入兩相鄰扇葉2之間的氣流可以流經各該凸粒3的凸出面3a，係可以減少氣流紊亂或擾流的情形，進而可以提升風量並且確保該數個扇葉2所旋出之氣流較不受阻礙，藉此，即使馬達在低轉速，該數個扇葉2受亦能產生有效氣流流動，以維持預定之風量。 Please refer to shown in Fig. 5, it is the second embodiment of the fan wheel P of this creation, the second embodiment of this creation is roughly the same as the above-mentioned first embodiment, in this second embodiment, each of the convex The grain 3 can have a convex surface 3a and a concave surface 3b, the convex surface 3a can be located on the windward surface F1, and the concave surface 3b can be located on the leeward surface F2, so that the convex grain 3 can form an overall uniform thickness, In this way, the airflow flowing between two adjacent fan blades 2 can flow through the protruding surface 3a of each of the bumps 3, which can reduce the turbulence or turbulence of the air flow, thereby improving the air volume and ensuring that the plurality of fan blades 2 The swirling airflow is relatively unimpeded, thereby, even if the motor rotates at a low speed, the plurality of fan blades 2 can also generate effective airflow to maintain a predetermined air volume.

請參照第3、5圖所示，值得一提的是，本實施例之該凸粒3係形成整個等厚的態樣亦可組合前述第一實施例的部份形態。換言之，前述第一實施例(如第3、4圖所示)所揭示的該虛擬線N至該葉尾端2b的徑向距離L1可以為該扇葉2總長度L2的1/2、該凸粒3可以位於該虛擬線N及 該葉尾端2b之間、該凸粒3的外徑D可以為1.5~3mm、該最大凸出距離Q較佳可以為0.25~0.5mm、該最小距離S較佳小於或等於該扇葉高度H的1/4、及該連接環4可以位於該葉尾端2b…等形態，亦可適用於本實施例中。 Please refer to Figures 3 and 5. It is worth mentioning that the bumps 3 of this embodiment are formed in an overall uniform thickness and can also be combined with some of the aforementioned first embodiment. In other words, the radial distance L1 from the imaginary line N to the blade tail end 2b disclosed in the aforementioned first embodiment (as shown in Figures 3 and 4) may be 1/2 of the total length L2 of the fan blade 2, the Bump 3 can be located on the imaginary line N and Between the blade tail ends 2b, the outer diameter D of the protrusion 3 may be 1.5-3 mm, the maximum protrusion distance Q may be preferably 0.25-0.5 mm, and the minimum distance S may be less than or equal to the height of the fan blade 1/4 of H, and the connecting ring 4 can be located at the blade tail end 2b... and other forms, which can also be applied in this embodiment.

請參照第6、7、8圖所示，其係本創作扇輪P的第三實施例，本創作的第三實施例大致上同於上述的第一實施例，在該第三實施例中，該數個扇葉2可以成放射狀地環繞該輪轂1設置，使氣流可易於由各該扇葉2之間流出，且位於各該扇葉2的凸粒3數量可以各為數個，該扇輪P可以具有一扇輪外徑X，相鄰的二凸粒3之間可以具有一間隙G，該間隙G較佳可以為大於或等於0.5mm，如此，係可以具有足夠的間隙G供氣流通過，係具有使氣流流動順暢的作用，而在其他實施例中，該間隙G亦可以依該扇輪外徑X做調整。此外，該數個凸粒3的尺寸可以如第6圖所示為相同，或者，該數個凸粒3的尺寸亦可以如第7圖所示為至少二個不相同，本創作均不加以限制。 Please refer to shown in the 6th, 7th, and 8th figures, it is the third embodiment of the fan wheel P of this creation, the third embodiment of this creation is roughly the same as the above-mentioned first embodiment, in this third embodiment The several fan blades 2 can be arranged radially around the hub 1, so that the airflow can easily flow out between the fan blades 2, and the number of bumps 3 located on each of the fan blades 2 can be several, the The fan wheel P can have a fan wheel outer diameter X, and there can be a gap G between the two adjacent convex grains 3, and the gap G can preferably be greater than or equal to 0.5mm, so that the system can have enough gap G for The passage of the airflow has the effect of making the airflow flow smoothly, and in other embodiments, the gap G can also be adjusted according to the outer diameter X of the fan wheel. In addition, the sizes of the several bumps 3 can be the same as shown in Figure 6, or at least two of the sizes of the bumps 3 can be different as shown in Figure 7, which is not included in this invention. limit.

請參照第9、10圖所示，其係本創作扇輪P的第四實施例，本創作的第四實施例大致上同於上述的第三實施例，在該第四實施例中，該連接環4係位於該葉根端2a與該葉尾端2b之間，各該扇葉2具有一後掠段21及一前掠段22，各該扇葉2的後掠段21可以鄰近該葉根端2a，各該扇葉2的後掠段21連接該輪轂1，各該扇葉2的前掠段22可以鄰近該葉尾端2b，各該前掠段22的延伸方向與該扇輪P的旋轉方向R相同，各該後掠段21的延伸方向與該扇輪P的旋轉方向R相反，各該後掠段21及各該前掠段22可以成弧線狀或直線狀，本創作不加以限制，在本實施例中，各該前掠段22可以成弧線狀，各該後掠段21可以成直線狀，如此，氣流可易於由該扇葉2的葉尾端2b流出，係具有使氣流流動順暢的作用。 Please refer to shown in the 9th, 10th figure, it is the fourth embodiment of the fan wheel P of this creation, the fourth embodiment of this creation is roughly the same as the above-mentioned third embodiment, in this fourth embodiment, the The connecting ring 4 is located between the blade root end 2a and the blade tail end 2b, each of the fan blades 2 has a swept back section 21 and a forward swept section 22, and the swept back section 21 of each of the fan blades 2 can be adjacent to the The blade root end 2a, the swept section 21 of each fan blade 2 is connected to the hub 1, the forward swept section 22 of each fan blade 2 can be adjacent to the blade tail end 2b, and the extension direction of each of the forward swept section 22 is the same as that of the fan blade. The rotation direction R of the wheel P is the same, and the extension direction of each of the swept segments 21 is opposite to the rotation direction R of the fan wheel P. Each of the swept segments 21 and each of the forward segments 22 can be arc-shaped or linear. Creation is not limited. In this embodiment, each of the forward-swept segments 22 can be arc-shaped, and each of the rear-swept segments 21 can be linear. In this way, the airflow can easily flow out from the blade tail end 2b of the fan blade 2. The system has the effect of making the air flow smooth.

請參照第11圖所示，其係本創作扇輪P的第五實施例，本創 作的第五實施例大致上同於上述的第一實施例，在該第五實施例中，該數個凸粒3可以位於各該扇葉2的背風面F2，如此，該結構簡易而便於製造，係具有降低製造成本的作用，且流入兩相鄰扇葉2之間的氣流同樣可以流經各該凸粒3，係可以減少氣流紊亂或擾流的情形，進而可以提升風量並且確保該數個扇葉2所旋出之氣流較不受阻礙，藉此，即使馬達在低轉速，該數個扇葉2受亦能產生有效氣流流動，以維持預定之風量。 Please refer to shown in Fig. 11, it is the fifth embodiment of fan wheel P of this creation, this creation The fifth embodiment is substantially the same as the above-mentioned first embodiment. In the fifth embodiment, the several bumps 3 can be located on the leeward surface F2 of each fan blade 2, so that the structure is simple and convenient. Manufacturing has the effect of reducing manufacturing costs, and the airflow flowing between two adjacent fan blades 2 can also flow through each of the bumps 3, which can reduce airflow turbulence or turbulence, thereby increasing the air volume and ensuring the The airflow from the several fan blades 2 is relatively unimpeded, so that even if the motor is at a low speed, the several fan blades 2 can also generate effective air flow to maintain a predetermined air volume.

請參照第1、3圖所示，在具有上述任一實施例扇輪P的一散熱風扇中，該散熱風扇具有一扇框5，該扇框5具有一基座51，該基座51具有一軸管511，該扇輪P可旋轉地設於該軸管511，一定子6則位於該軸管511的外周。由於各該扇葉2的迎風面F1或/及背風面F2具有至少一該凸粒3，該凸粒3的外徑D為該扇葉2最大高度M的30~80%，當該扇輪P旋轉作動時，流入兩相鄰扇葉2之間的氣流可以流經各該凸粒3，係可以減少氣流紊亂或擾流的情形，進而可以提升風量並且確保該數個扇葉2所旋出之氣流較不受阻礙，藉此，即使馬達在低轉速，該數個扇葉2受亦能產生有效氣流流動，以維持預定之風量，係可以同時具有節省能源的效果。 Please refer to Figures 1 and 3, in a heat dissipation fan with fan wheel P in any of the above embodiments, the heat dissipation fan has a fan frame 5, and the fan frame 5 has a base 51, and the base 51 has a A shaft tube 511 , the fan wheel P is rotatably disposed on the shaft tube 511 , and a stator 6 is located on the outer periphery of the shaft tube 511 . Since the windward side F1 or/and the leeward side F2 of each fan blade 2 has at least one bump 3, the outer diameter D of the bump 3 is 30-80% of the maximum height M of the fan blade 2, when the fan wheel When the P rotates, the airflow flowing between two adjacent fan blades 2 can flow through each of the bumps 3, which can reduce the turbulence or turbulence of the air flow, thereby increasing the air volume and ensuring that the several fan blades 2 rotate smoothly. The outflow airflow is relatively unobstructed, thereby, even if the motor rotates at a low speed, the plurality of fan blades 2 can also generate effective airflow to maintain a predetermined air volume, which can simultaneously save energy.

綜上所述，本創作的扇輪及具有該扇輪之散熱風扇，利用各該扇葉的迎風面或/及背風面具有至少一該凸粒，且該凸粒的外徑為該扇葉最大高度的30~80%，流入兩相鄰扇葉之間的氣流可以流經各該凸粒，如此，係可以避免形成擾流或產生風切的情形，進而可以減低氣流過大所造成的噪音，同時可以確保該數個扇葉所旋出之氣流較不受阻礙，即使馬達在低轉速，該數個扇葉受亦能產生有效氣流流動，以維持預定之風量，係可以具有提升風量、節省能源及降低風扇運作噪音的功效。 In summary, the fan wheel of the present invention and the cooling fan with the fan wheel utilize at least one convex particle on the windward side or/and the leeward side of each fan blade, and the outer diameter of the convex particle is equal to that of the fan blade. 30~80% of the maximum height, the airflow flowing between two adjacent fan blades can flow through each of the bumps, so that the formation of turbulent flow or wind shear can be avoided, and the noise caused by excessive airflow can be reduced At the same time, it can ensure that the airflow rotated by the several fan blades is relatively unimpeded. Even if the motor is at a low speed, the several fan blades can also generate effective air flow to maintain the predetermined air volume. It can increase the air volume, Save energy and reduce the noise of fan operation.

雖然本創作已利用上述較佳實施例揭示，然其並非用以限定本創作，任何熟習此技藝者在不脫離本創作之精神和範圍之內，相對上述實施 例進行各種更動與修改仍屬本創作所保護之技術範疇，因此本創作之保護範圍當包含後附之申請專利範圍所記載的文義及均等範圍內之所有變更。又，上述之數個實施例能夠組合時，則本創作包含任意組合的實施態樣。 Although this creation has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit this creation. Various changes and modifications of the example still belong to the technical scope of protection of this creation, so the protection scope of this creation should include all changes within the meaning and equivalent scope recorded in the appended patent application scope. In addition, when the above-mentioned several embodiments can be combined, the invention includes any combination of implementations.

1:輪轂 1: hub

11:環牆 11: ring wall

12:板體 12: board body

2:扇葉 2: fan blade

2a:葉根端 2a: Root end of leaf

2b:葉尾端 2b: Leaf tail

2c:頂緣 2c: top edge

2d:底緣 2d: bottom edge

3:凸粒 3: Convex

31:中心點 31: center point

4:連接環 4: Connection ring

D:外徑 D: outer diameter

F1:迎風面 F1: windward side

F2:背風面 F2: Leeward side

H:扇葉高度 H: blade height

L1:徑向距離 L1: radial distance

L2:總長度 L2: total length

M:最大高度 M: maximum height

N:虛擬線 N: virtual line

P:扇輪 P: fan wheel

S:最小距離 S: minimum distance

Claims (18)

一種扇輪，包含：一輪轂；數個扇葉，環繞該輪轂設置，各該扇葉具有相對的一葉根端及一葉尾端，各該葉根端連接該輪轂，各該扇葉具有一迎風面及一背風面；及數個凸粒，分布於該數個扇葉，各該扇葉的迎風面或/及背風面具有至少一該凸粒，該凸粒的外徑為該扇葉最大高度的30~80%。 A fan wheel, comprising: a hub; several fan blades arranged around the hub, each of the fan blades has a root end and a tail end opposite to each other, each of the root ends of the blades is connected to the hub, and each of the fan blades has a windward and a leeward side; and several convex grains, distributed on the several fan blades, each of the fan blades has at least one convex grain on the windward side or/and the leeward side, and the outer diameter of the convex grains is the largest of the fan blades. 30~80% of the height. 如請求項1之扇輪，其中，該數個凸粒位於各該扇葉的迎風面。 The fan wheel according to claim 1, wherein the plurality of bumps are located on the windward side of each fan blade. 如請求項2之扇輪，其中，各該凸粒與該該凸粒所在表面之間具有一最大凸出距離，該最大凸出距離為0.25~0.5mm。 The fan wheel according to claim 2, wherein there is a maximum protrusion distance between each of the protrusions and the surface on which the protrusions are located, and the maximum protrusion distance is 0.25-0.5 mm. 如請求項1之扇輪，其中，各該凸粒具有一中心點，該扇葉於通過該中心點處具有一扇葉高度，該凸粒與該扇葉的一底緣之間具有一最小距離，該最小距離小於或等於該扇葉高度的1/4。 The fan wheel according to claim 1, wherein each of the bumps has a center point, the fan blade has a blade height passing through the center point, and there is a minimum distance between the bumps and a bottom edge of the fan blade. distance, the minimum distance is less than or equal to 1/4 of the height of the blade. 如請求項1之扇輪，其中，該凸粒為半球形或1/4球型。 The fan wheel according to claim 1, wherein the bumps are hemispherical or 1/4 spherical. 如請求項1之扇輪，其中，該扇輪具有一扇輪外徑，位於各該扇葉的凸粒數量各為數個，相鄰的二凸粒之間具有一間隙，該間隙為大於或等於0.5mm。 Such as the fan wheel of claim 1, wherein the fan wheel has an outer diameter of the fan wheel, the number of convex particles located on each fan blade is several, and there is a gap between two adjacent convex particles, and the gap is greater than or Equal to 0.5mm. 如請求項6之扇輪，其中，位於各該扇葉的數個凸粒的尺寸為相同。 The fan wheel according to claim 6, wherein the several bumps on each fan blade have the same size. 如請求項6之扇輪，其中，位於各該扇葉的數個凸粒的尺寸為至少二個不相同。 The fan wheel according to claim 6, wherein at least two of the protrusions on each fan blade have different sizes. 如請求項1之扇輪，其中，該數個扇葉成放射狀地環繞該輪轂設置。 The fan wheel according to claim 1, wherein the plurality of fan blades are arranged radially around the hub. 如請求項1之扇輪，其中，各該扇葉具有一後掠段及一前掠段，各該扇葉的後掠段連接該輪轂，各該前掠段成弧線狀，各該後掠段成直線狀或弧線狀。 The fan wheel according to claim 1, wherein each of the fan blades has a swept back section and a forward swept section, each of the swept back sections of the fan blades is connected to the hub, each of the forward swept sections is arc-shaped, and each of the swept back sections is Segments in a straight line or arc. 如請求項1之扇輪，其中，該數個凸粒位於各該扇葉的背風面。 The fan wheel according to claim 1, wherein the plurality of bumps are located on the leeward side of each fan blade. 如請求項1之扇輪，其中，該凸粒的外徑為1.5~3mm。 Such as the fan wheel of claim 1, wherein the outer diameter of the bumps is 1.5-3 mm. 如請求項1之扇輪，其中，該扇葉具有一虛擬線，該虛擬線至該葉尾端的徑向距離為該扇葉總長度的1/2，該凸粒位於該虛擬線及該葉尾端之間。 The fan wheel according to claim 1, wherein the fan blade has a virtual line, and the radial distance from the virtual line to the tail end of the fan blade is 1/2 of the total length of the fan blade, and the convex grain is located between the virtual line and the blade between the ends. 如請求項13之扇輪，其中，該凸粒位於該葉根端及該葉尾端之間且較鄰近該葉尾端。 The fan wheel according to claim 13, wherein the protrusion is located between the root end of the blade and the tail end of the blade and is closer to the tail end of the blade. 如請求項1至14中任一項之扇輪，另包含至少一連接環，該連接環連接該數個扇葉。 The fan wheel according to any one of claims 1 to 14, further comprising at least one connecting ring, the connecting ring connecting the plurality of fan blades. 如請求項15之扇輪，其中，該連接環位於該葉尾端或位於該葉根端與該葉尾端之間。 The fan wheel according to claim 15, wherein the connecting ring is located at the blade tail end or between the blade root end and the blade tail end. 一種扇輪，包含：一輪轂；數個扇葉，環繞該輪轂設置，各該扇葉具有相對的一葉根端及一葉尾端，各該葉根端連接該輪轂，各該扇葉具有一迎風面及一背風面；及數個凸粒，分布於該數個扇葉，該數個凸粒位於該葉根端及該葉尾端之間且較鄰近該葉尾端，各該扇葉具有至少一該凸粒，各該凸粒具有一凸出面及一凹陷面，該凸出面位於該迎風面，該凹陷面位於該背風面。 A fan wheel, comprising: a hub; several fan blades arranged around the hub, each of the fan blades has a root end and a tail end opposite to each other, each of the root ends of the blades is connected to the hub, and each of the fan blades has a windward and a leeward side; and a plurality of convex grains distributed on the plurality of fan blades, the plurality of convex grains are located between the root end of the blade and the tail end of the blade and are closer to the tail end of the blade, each of the fan blades has At least one of the convex grains, each of the convex grains has a convex surface and a concave surface, the convex surface is located on the windward side, and the concave surface is located on the leeward surface. 一種散熱風扇，包含：一扇框，具有一基座，該基座具有一軸管； 一定子，位於該軸管的外周；及一如請求項1至17中任一項之扇輪，該扇輪可旋轉地設於該軸管。 A cooling fan, comprising: a fan frame with a base, the base has a shaft tube; A stator located on the outer periphery of the shaft tube; and a fan wheel according to any one of claims 1 to 17, the fan wheel is rotatably arranged on the shaft tube.

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