JP2012087713A - Blower impeller and blower with the same - Google Patents

Blower impeller and blower with the same Download PDF

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JP2012087713A
JP2012087713A JP2010236170A JP2010236170A JP2012087713A JP 2012087713 A JP2012087713 A JP 2012087713A JP 2010236170 A JP2010236170 A JP 2010236170A JP 2010236170 A JP2010236170 A JP 2010236170A JP 2012087713 A JP2012087713 A JP 2012087713A
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hub
blower
blade
blower impeller
rear edge
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Masahiro Shigemori
正宏 重森
Seiji Shirahama
誠司 白濱
Yuri Tanaka
有理 田中
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To increase a wind amount while securing a static pressure by making a blowout side linear shape from a rear edge root of a hub in an axial-flow blower impeller where the blade whose outer circumferential side of the rear edge is more protruded in a blowout direction than the hub is attached to the substantially truncated conical hub, and that is used for a ventilation blower.SOLUTION: The blower impeller includes the substantially truncated conical hub 1 and the blade 2 whose outer circumferential side of the rear edge is closer to the blowout side than the hub side, and a connection part with the hub 1 in the rear edge is located on a side surface of the hub 1. The side surface of the hub 1 from the connection part of the rear edge of the blade 2 the end of the blow-out side is made to be linear in an axial direction. Accordingly, the wind amount can be increased while securing the static pressure, thereby the wind amount can be increased even at high static pressure.

Description

本発明は、換気送風機器に使用される送風機羽根車に関するものである。   The present invention relates to a blower impeller used for a ventilation blower.

従来、この種の送風機羽根車は、略円錐台状のハブに羽根が取り付いた送風機羽根車が知られている。(例えば、特許文献1参照)。   Conventionally, this type of blower impeller is known as a blower impeller having blades attached to a substantially truncated cone-shaped hub. (For example, refer to Patent Document 1).

以下、その送風機羽根車について図9を参照しながら説明する。   Hereinafter, the blower impeller will be described with reference to FIG.

図8に示すように、略円錐台状のハブ101に羽根102が取り付けられている。   As shown in FIG. 8, blades 102 are attached to a substantially truncated cone-shaped hub 101.

上記構成において、略円錐台状のハブが外部より回転力を受けて回転駆動することで、羽根102の昇圧作用により風を発生させ、略円錐台状のハブ101の側面の傾斜により気流の旋回成分を増加させ、静圧を上昇させるために使用される。   In the above configuration, the substantially frustoconical hub receives rotational force from the outside and is driven to rotate, thereby generating wind by the pressure-increasing action of the blades 102, and the airflow swirling due to the inclination of the side surface of the substantially frustoconical hub 101. Used to increase ingredients and increase static pressure.

特開2006−291735号公報(第21頁、第1図)JP 2006-291735 A (page 21, FIG. 1)

このような従来の送風機羽根車では、略円錐台状のハブにより、静圧は上昇するが、略円錐台状のハブが吹出側後縁の位置まで傾斜があるので、吹出側のハブの径が大きくなり流路を阻害し風量が低下するという課題を有していた。   In such a conventional blower impeller, the static pressure rises due to the substantially truncated cone-shaped hub, but the substantially truncated cone-shaped hub is inclined to the position of the trailing edge of the blowing side. Has a problem that the flow rate is increased and the flow path is obstructed to reduce the air flow.

そこで本発明は、このような従来の課題を解決するものであり、静圧を確保しながら、風量を増加させることを目的とする。   Therefore, the present invention solves such a conventional problem, and an object thereof is to increase the air volume while ensuring a static pressure.

そして、この目的を達成するために、本発明は、略円錐台状のハブに、後縁の外周側がハブ側より吹出し方向に出っ張った羽根が取り付いている軸流送風機羽根車において、ハブの後縁付け根から吹出側を直線形状である構成を有する送風機羽根車であり、これにより所期の目的を達成するものである。   In order to achieve this object, the present invention provides an axial-flow fan impeller in which a blade having a substantially frustoconical hub attached with a blade whose outer peripheral side of the rear edge protrudes in the blowing direction from the hub side is attached. This is a blower impeller having a configuration in which the blowout side is linear from the edge of the rim, thereby achieving the intended purpose.

本発明によれば、外部より回転力を受けて回転駆動される略円錐台状のハブと、ハブの周囲に放射状に延び出して形成された複数枚の羽根を備え、その羽根は、後縁の外周側がハブ側に対して吹出側に位置し、かつ、後縁のハブ側の付け根がハブの側面の途中に位置し、ハブの羽根後縁付け根から吹出側を直線形状にした構成を有する。これにより、略円錐台状のハブの吹出側に、直線部を設けることで、吹出部の流路を阻害することがなくなるので、静圧を確保しながら、風量を増加させることができるため、静圧を確保しながら、風量を増加させることで、高静圧時でも風量を増加させることができる。   According to the present invention, a substantially frustoconical hub that is rotationally driven by receiving a rotational force from the outside, and a plurality of blades that extend radially around the hub, the blade has a trailing edge. The outer peripheral side of the hub is located on the outlet side with respect to the hub side, and the hub base on the rear edge of the hub is located in the middle of the side surface of the hub, and the outlet side has a linear shape from the blade rear edge root of the hub. . Thereby, by providing the straight portion on the blowing side of the substantially truncated cone-shaped hub, it is possible to increase the air volume while securing the static pressure because it does not hinder the flow path of the blowing portion. By increasing the air volume while ensuring the static pressure, the air volume can be increased even at high static pressure.

本発明の実施の形態1の送風機羽根車を示す斜視図The perspective view which shows the air blower impeller of Embodiment 1 of this invention. 同送風機羽根車を示す断面を示す構成図The block diagram which shows the cross section which shows the blower impeller 本発明の実施の形態2の送風機羽根車を示す斜視図The perspective view which shows the air blower impeller of Embodiment 2 of this invention. 本発明の実施の形態3の送風機羽根車を示す斜視図The perspective view which shows the air blower impeller of Embodiment 3 of this invention. 同送風機羽根車のハブ直線部を示す斜視図The perspective view which shows the hub straight part of the blower impeller 本発明の実施の形態4の送風機羽根車のハブを示す斜視図The perspective view which shows the hub of the air blower impeller of Embodiment 4 of this invention. 同送風機羽根車の羽根を示す斜視図Perspective view showing the blades of the blower impeller 本発明の実施の形態5の送風機を示す斜視図The perspective view which shows the air blower of Embodiment 5 of this invention. 従来の送風機羽根車を示す断面を示す構成図The block diagram which shows the cross section which shows the conventional fan impeller

本発明の請求項1記載の送風機羽根車は、外部より回転力を受けて回転駆動される略円錐台状のハブと、ハブの周囲に放射状に延び出して形成された複数枚の羽根を備え、その羽根は、後縁の外周側がハブ側に対して吹出側に位置し、かつ、後縁のハブ側の付け根がハブの側面の途中に位置し、ハブの羽根の後縁付け根から吹出側を直線形状にした構成を有する。これにより、略円錐台状のハブの吹出側に、直線部を設けることで、静圧を確保しながら、風量を増加させることができるため、静圧を確保しながら、風量を増加させることで、高静圧時でも風量を増加させることができるという効果を奏する。   According to a first aspect of the present invention, a blower impeller includes a substantially frustoconical hub that is rotationally driven by receiving a rotational force from the outside, and a plurality of blades that extend radially around the hub. , The outer peripheral side of the rear edge is located on the outlet side with respect to the hub side, and the root on the hub side of the rear edge is located in the middle of the side surface of the hub, and the outlet side from the rear edge root of the hub blade Has a linear configuration. Thus, by providing a straight portion on the outlet side of the substantially frustoconical hub, the air volume can be increased while securing the static pressure, so the air volume can be increased while securing the static pressure. The air volume can be increased even at high static pressure.

また、略円錐台状のハブの、ハブ吸込側先端から羽根後縁付け根までの軸方向寸法をA、ハブの、羽根後縁付け根から吹出側までの軸方向寸法をBとしたとき、A>Bとなる構成にしてもよい。これにより、略円錐台状のハブ軸方向寸法において、ハブの先端から羽根後縁付け根までの距離を羽根後縁付け根から吹出側までより長くすることで、静圧上昇を高め、風量を増加させることができ、静圧を確保しながら、風量を増加させることで、高静圧時でも風量を増加させることができるという効果を奏する。   Further, when the axial dimension of the substantially frustoconical hub from the front end of the hub suction side to the blade trailing edge is A, and the axial dimension of the hub from the blade trailing edge to the outlet side is B, A> You may make it the structure used as B. This increases the static pressure and increases the air volume by making the distance from the tip of the hub to the blade trailing edge root longer from the blade trailing edge root to the outlet side in the substantially frustoconical hub axial dimension. It is possible to increase the air volume while securing the static pressure, and it is possible to increase the air volume even at high static pressure.

また、送風機羽根車の外径をD、略円錐台状のハブの羽根後縁付け根の外径をd、ハブの羽根後縁付け根から吹出側までの軸方向寸法をBとしたとき、ハブ比d/Dが0.25<d/D<0.55、送風機外径Dに対するBの比B/Dが、0.05<B/D<0.15となる構成にしてもよい。これにより、ハブ比d/Dが0.25<d/D<0.55、送風機外径Dに対するBの比B/Dが、0.05<B/D<0.15とすることで、風量を増加させながら、静圧を確保することができるため、静圧を確保しながら、風量を増加させることで、高静圧時でも風量を増加させることができるという効果を奏する。   Further, when the outer diameter of the fan impeller is D, the outer diameter of the blade trailing edge of the substantially truncated cone-shaped hub is d, and the axial dimension from the blade trailing edge of the hub to the outlet side is B, the hub ratio It may be configured such that d / D is 0.25 <d / D <0.55, and the ratio B / D of B to the blower outer diameter D is 0.05 <B / D <0.15. Thereby, the hub ratio d / D is 0.25 <d / D <0.55, and the ratio B / D of B to the blower outer diameter D is 0.05 <B / D <0.15. Since the static pressure can be secured while increasing the air volume, the air volume can be increased even at high static pressure by increasing the air volume while securing the static pressure.

また、ハブは、羽根前縁側に切り欠きを有するという構成にしてもよい。これにより、型抜きの形状を考慮することで、金型製作が容易にすることができるため、金型製作が容易になることで、金型コストの低減を図ることができるという効果を奏する。   The hub may have a notch on the blade leading edge side. Thereby, since the mold can be easily manufactured by considering the shape of the die cutting, the mold cost can be reduced by facilitating the manufacture of the mold.

また、ハブの羽根後縁付け根から吹出側までの直線形状部分を別部品として取り付けるという構成にしてもよい。これにより、ハブの羽根後縁付け根から吹出側までの直線形状部分を別部品にすることで、金型作成が容易になるため、金型作成が容易になることで、金型コストの低減を図ることができるという効果を奏する。   Moreover, you may make it the structure of attaching the linear shape part from the blade | wing trailing edge root of a hub to the blowing side as another component. This makes it easier to create the mold by making the linear part from the root edge of the hub blade to the blowout side a separate part, making the mold easier and reducing the cost of the mold. There is an effect that it can be achieved.

また、ハブと羽根を別部品で構成し、ハブに羽根を取り付けるという構成にしてもよい。これにより、ハブと羽根を別部品にすることで、羽根、ハブの金型作成が容易になるため、金型作成が容易になることで、金型コストの低減を図ることができるという効果を奏する。   Further, the hub and the blade may be configured as separate parts, and the blade may be attached to the hub. By making the hub and blades separate parts, this makes it easy to create the blade and hub molds, making it easier to create the molds and reducing the cost of the molds. Play.

また、別部品の取り付け方法は、溶着という構成にしてもよい。これにより、溶着することで、部品の強度が増加するため、部品の強度が増加することで運転中の破損の危険が低減するという効果を奏する。   Moreover, you may make the structure of welding the attachment method of another component. As a result, the strength of the component is increased by welding, so that the strength of the component is increased, thereby reducing the risk of breakage during operation.

また、別部品の取り付け方法は、ネジ止めという構成にしてもよい。これにより、ネジ止めにすることで、部品の強度が増加することで、部品の強度が増加することで運転中の破損の危険が低減するという効果を奏する。   Moreover, you may make the structure of screwing the attachment method of another component. Thereby, by screwing, the strength of the component is increased, and the strength of the component is increased, thereby reducing the risk of breakage during operation.

また、送風機羽根車と、これを回転させるモータと、モータを固定するフレームを備えた送風機という構成にしてもよい。これにより、送風機羽根車の回転により昇圧することができ、略円錐台状のハブの吹出側に、直線部を設けることで、静圧を確保しながら、風量を増加させることができるため、高静圧時でも風量を増加させることができる送風機として使用できるという効果を奏する。   Moreover, you may make it the structure of a blower provided with the fan impeller, the motor which rotates this, and the flame | frame which fixes a motor. As a result, the pressure can be increased by the rotation of the blower impeller, and by providing the straight portion on the outlet side of the substantially truncated cone-shaped hub, the air volume can be increased while securing the static pressure. There is an effect that it can be used as a blower capable of increasing the air volume even at static pressure.

以下、本発明の実施の形態について図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(実施の形態1)
図1、図2に示すように、送風機羽根車は、略円錐台状のハブ1と、羽根2から構成されている。羽根2は、後縁の外周側がハブ側よりも吹出側に位置し、後縁のハブ1との接続部はハブ1の側面の途中に位置している。ハブ1の、羽根2の後縁の接続部から吹出側端部までの側面が軸方向に直線形状となっている。
(Embodiment 1)
As shown in FIGS. 1 and 2, the blower impeller includes a substantially truncated cone-shaped hub 1 and blades 2. In the blade 2, the outer peripheral side of the rear edge is located closer to the outlet side than the hub side, and the connecting portion with the hub 1 at the rear edge is located in the middle of the side surface of the hub 1. The side surface from the connection part of the rear edge of the blade | wing 2 to the blowing side edge part of the hub 1 has a linear shape in the axial direction.

本実施の形態では、ハブ1の高さは35mm、羽根の外径は130mm、ハブ1の、羽根2の後縁の接続部から吹出側端部までの直線部分が12mmとなっている。ハブ1の吸込側が略円錐台状になっていることで、ハブ1の側面の傾斜に沿い、流れの周方向成分を助長させて静圧を上昇させることができる。また、ハブ1の羽根2の後縁の接続部から吹出側端部までの側面が軸方向に直線形状になっていることで、羽根2からの吹出の流路を阻害することなく、ハブ1が吸込側から吹出側まで円錐台形状にしたものに比較して、風量を増加させることができる。   In the present embodiment, the height of the hub 1 is 35 mm, the outer diameter of the blade is 130 mm, and the straight portion of the hub 1 from the connecting portion of the rear edge of the blade 2 to the outlet side end portion is 12 mm. Since the suction side of the hub 1 has a substantially truncated cone shape, it is possible to increase the static pressure by promoting the circumferential component of the flow along the inclination of the side surface of the hub 1. Further, since the side surface from the connecting portion of the rear edge of the blade 2 of the hub 1 to the outlet side end portion is linear in the axial direction, the hub 1 is not obstructed without obstructing the flow path of the outlet from the blade 2. However, the air volume can be increased as compared with the one having a truncated cone shape from the suction side to the discharge side.

また、ハブ1の円錐台状の傾斜した側面部である、吸込側から羽根2の後縁の接続部までの軸方向距離Aと、ハブ1の直線形状の側面部である、羽根2の後縁の接続部から吹出側端部までの軸方向距離Bとするとき、A>Bとすることで、ハブ1の側面の傾斜に沿って流れの周方向成分を助長させて静圧を上昇させる効果を高く保つことができる。   In addition, the axial distance A from the suction side to the connecting portion of the rear edge of the blade 2 that is a truncated cone-shaped side surface of the hub 1 and the rear of the blade 2 that is the linear side surface portion of the hub 1 When the axial distance B from the edge connecting portion to the outlet side end portion is set to A> B, the circumferential component of the flow is promoted along the inclination of the side surface of the hub 1 to increase the static pressure. The effect can be kept high.

また、送風機の外径をD,略円錐台状のハブの羽根後縁付け根の外径をd、としたとき、ハブ比d/Dが0.25<d/D<0.55、送風機外径Dに対するBの比B/Dが0.05<B/D<0.15とすることで、ハブ比d/Dが0.25<d/D<0.55となることで、ハブ1が小さくなって、傾斜部分が設けることができず、ハブ1の側面の傾斜に沿って流れの周方向成分を助長させて静圧を上昇させることができなくならないように、ハブ1が大きくなりすぎて、ハブ1が軸方向の流路を阻害し、風量を低下させない寸法となっている、また、B/Dが0.05<B/D<0.15となることで、風量を増加する効果を高めることができ、製品寸法への影響を低減できる。B/Dが0.05以下の場合、ハブの後縁付け根から吹出側短部までの距離が短くなり、後縁からの流れがハブの軸側の内部に拡散して、風量増加の効果が低減してしまう。B/Dが0.15以上の場合、ハブの後縁付け根から吹出側短部までの距離が長くなり、送風機羽根車の高さが高くなり、製品取り付け時のファンの占有する高さが高くなるため、製品の大きさが大きくなる。   When the outer diameter of the blower is D and the outer diameter of the blade trailing edge of the substantially truncated cone-shaped hub is d, the hub ratio d / D is 0.25 <d / D <0.55, and the outside of the blower When the ratio B / D of B to the diameter D is 0.05 <B / D <0.15, the hub ratio d / D is 0.25 <d / D <0.55. The hub 1 is enlarged so that the inclined portion cannot be provided and the static pressure cannot be increased by promoting the circumferential component of the flow along the inclination of the side surface of the hub 1. Too much, the hub 1 has a dimension that does not obstruct the flow path in the axial direction and reduce the air volume, and the air volume is increased by B / D being 0.05 <B / D <0.15. Effect can be enhanced, and the influence on product dimensions can be reduced. When B / D is 0.05 or less, the distance from the rear edge of the hub to the outlet side short part is shortened, and the flow from the rear edge diffuses into the shaft side of the hub. It will be reduced. When B / D is 0.15 or more, the distance from the rear edge of the hub to the outlet side short part becomes longer, the height of the blower impeller becomes higher, and the height occupied by the fan when installing the product is higher. Therefore, the size of the product increases.

(実施の形態2)
図3において、実施の形態1と同一の部分は同一符号を付し、その詳細な説明は省略する。
(Embodiment 2)
In FIG. 3, the same parts as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図3において、略円錐台状のハブ1の前縁側に近接する部分に、ハブの軸方向正面から見たとき、羽根の前縁の曲線と、羽根の前縁の曲線を周方向に移動した曲線とを結んでできる領域を、軸方向に切り落とした形状である切欠き3を入れることで、金型を軸方向に抜くことができ、スライド型などを使用することなく、金型形状が容易となる。   In FIG. 3, when viewed from the front in the axial direction of the hub, the curve of the front edge of the blade and the curve of the front edge of the blade are moved in the circumferential direction at a portion close to the front edge side of the substantially frustoconical hub 1. The area formed by connecting the curve can be removed in the axial direction by inserting a notch 3 that is cut off in the axial direction, making it easy to mold without using a slide mold. It becomes.

本実施の形態では、羽根の外径は130mmであり、ハブ1の切欠き3は前縁から5mmであり、5mm以上の大きさがあることで金型強度を確保することができ、多数成形しても金型の寿命を長くすることができる。5mm以下の場合、形状は形成できるが、強度が弱くなり、多数成形すると繰り返し応力により破断してしまう。   In the present embodiment, the outer diameter of the blade is 130 mm, the notch 3 of the hub 1 is 5 mm from the front edge, and the mold strength can be ensured by having a size of 5 mm or more, and a large number of moldings are performed. Even so, the life of the mold can be extended. When the thickness is 5 mm or less, the shape can be formed, but the strength is weakened, and when a large number of moldings are formed, it is broken by repeated stress.

なお、ハブの軸方向正面から見たとき、羽根の前縁の曲線と、羽根の前縁の曲線を周方向に移動した曲線とを結んでできる領域を含んでいれば、例えば、中心方向にさらに切込をいれたもの、または、羽根の前縁の曲線を周方向に移動した曲線を直線にしたものでも、作用効果に差はない。   When viewed from the front in the axial direction of the hub, if it includes an area formed by connecting the curve of the front edge of the blade and the curve of the front edge of the blade moved in the circumferential direction, for example, in the center direction Furthermore, there is no difference in the effect even if the cut is made or the curve obtained by moving the curve of the front edge of the blade in the circumferential direction is a straight line.

(実施の形態3)
図4、図5において、実施の形態1と同一の部分は同一符号を付し、その詳細な説明は省略する。
(Embodiment 3)
4 and 5, the same parts as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図4において、ハブ1の略円錐台状の部分と羽根2とを一体成形で形成し、図5のように直線部分をハブ直線部4として別部品で成形し、ハブ1の略円錐台状の吹出側端部にハブ直線部4を取り付けることで、送風機羽根車となる。別部品で成形することで、金型作成上のアンダーカットを考慮することが減少し、金型作成が容易になる。   In FIG. 4, the substantially truncated cone-shaped part of the hub 1 and the blade 2 are formed by integral molding, and the straight part is formed as a separate part as the hub straight part 4 as shown in FIG. By attaching the hub straight part 4 to the outlet side end of the fan, a blower impeller is obtained. Molding with separate parts reduces the consideration of undercuts in mold creation and facilitates mold creation.

また、接続方法は、溶着することで、樹脂の別々の部品を一体成形と同等の強度になり、また、ねじ止めとすることで、2部品を簡易に接続することができ、例えば勘合による接続、または、接着剤による接着と比較して、強度が増すため、運転中の破損の危険が低減する。   Also, the welding method is to weld the parts of the resin to the same strength as the integral molding, and by screwing, the two parts can be easily connected. Or because of increased strength compared to bonding with an adhesive, the risk of breakage during operation is reduced.

(実施の形態4)
図6、図7において、実施の形態1と同一の部分は同一符号を付し、その詳細な説明は省略する。
(Embodiment 4)
6 and 7, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図6のような略円錐台状のハブ1と、図7のように羽根2を別部品で成形し、ハブ1に羽根2を取り付けることで、送風機羽根車となる。別部品で成形することで、金型作成上のアンダーカットを考慮することが減少し、金型作成が容易になる。   A substantially frustoconical hub 1 as shown in FIG. 6 and a blade 2 are formed as separate parts as shown in FIG. Molding with separate parts reduces the consideration of undercuts in mold creation and facilitates mold creation.

また、接続方法は、溶着、または、ねじ止めとすることで強度が増し、運転中の破損の危険が低減する。   In addition, the connection method is welded or screwed to increase the strength and reduce the risk of breakage during operation.

(実施の形態5)
図8において、実施の形態1と同一の部分は同一符号を付し、その詳細な説明は省略する。
(Embodiment 5)
In FIG. 8, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

送風機羽根車5に、モータ6とフレーム7を取り付けることで、送風機8として風を送ることができる。例えば、図8のように外径85mmの送風機羽根車5に外径48mmのモータ、内径90mmの開口のあるフレームを取り付けることで、送風機羽根車5の回転により昇圧することができるため、静圧を確保しながら、風量を増加させることで、高静圧時でも風量を増加させることができる送風機を提供できるという効果を奏する。   By attaching the motor 6 and the frame 7 to the blower impeller 5, wind can be sent as the blower 8. For example, as shown in FIG. 8, by attaching a motor having a 48 mm outer diameter and a frame having an opening having a 90 mm inner diameter to the fan impeller 5 having an outer diameter of 85 mm, the pressure can be increased by the rotation of the fan impeller 5. By ensuring that the air volume is increased, there is an effect that it is possible to provide a blower that can increase the air volume even at high static pressure.

本発明にかかる送風機羽根車は、送風機を用いる工業製品である換気扇や扇風機、空気調和機、コンピューター冷却用の送風機などに適応できる。   The blower impeller according to the present invention can be applied to a ventilation fan, a fan, an air conditioner, a computer cooling blower, and the like, which are industrial products using the blower.

1 ハブ
2 羽根
3 切欠き
4 ハブ直線部
5 送風機羽根車
6 モータ
7 フレーム
8 送風機
101 ハブ
102 羽根
1 Hub 2 Blade 3 Notch 4 Hub Straight Line 5 Blower Impeller 6 Motor 7 Frame 8 Blower 101 Hub 102 Blade

Claims (9)

外部より回転力を受けて回転駆動される略円錐台状のハブと、前記ハブの周囲に放射状に延び出して形成された複数枚の羽根を備え、その羽根は、後縁の外周側がハブ側に対して吹出側に位置し、かつ、後縁のハブ側の付け根が前記ハブの側面の途中に位置し、前記ハブの前記羽根の後縁付け根から吹出側を直線形状にしたことを特徴とする送風機羽根車。 A substantially frustoconical hub that is driven to rotate by receiving a rotational force from the outside, and a plurality of blades that extend radially around the hub, the outer peripheral side of the rear edge being the hub side The hub side of the rear edge of the hub is located in the middle of the side surface of the hub, and the outlet side is linearly formed from the rear edge of the blade of the hub. Blower impeller to do. 略円錐台状のハブの、前記ハブ吸込側先端から羽根後縁付け根までの軸方向寸法をA、前記ハブの羽根後縁付け根から吹出側までの軸方向寸法をBとしたとき、A>Bとなる請求項1に記載の送風機羽根車。 When the axial dimension of the substantially truncated cone-shaped hub from the hub suction side tip to the blade trailing edge root is A, and the axial dimension from the blade trailing edge root to the outlet side of the hub is B, A> B The blower impeller according to claim 1. 送風機羽根車の外径をD、略円錐台状のハブの羽根後縁付け根の外径をd、前記ハブの羽根後縁付け根から吹出側までの軸方向寸法をBとしたとき、ハブ比d/Dが0.25<d/D<0.55、送風機外径Dに対する前記Bの比B/Dが、0.05<B/D<0.15となる請求項1または2に記載の送風機羽根車。 When the outer diameter of the blower impeller is D, the outer diameter of the blade trailing edge of the substantially truncated cone-shaped hub is d, and the axial dimension from the blade trailing edge of the hub to the outlet side is B, the hub ratio d 3 / D is 0.25 <d / D <0.55, and the ratio B / D of B to the outer diameter D of the blower is 0.05 <B / D <0.15. Blower impeller. ハブは、羽根前縁側に切り欠きを有する請求項1から3のいずれか1項に記載の送風機羽根車。 The blower impeller according to any one of claims 1 to 3, wherein the hub has a notch on a blade leading edge side. ハブの羽根後縁付け根から吹出側までの直線形状部分を別部品として取り付けることを特徴とした請求項1から4のいずれか1項に記載の送風機羽根車。 The blower impeller according to any one of claims 1 to 4, wherein a straight part from a blade rear edge root of the hub to a blowing side is attached as a separate part. ハブと羽根を別部品で構成し、前記ハブに羽根を取り付けることを特徴とした請求項1から4のいずれか1項に記載の送風機羽根車。 The fan impeller according to any one of claims 1 to 4, wherein the hub and the blades are configured as separate parts, and the blades are attached to the hub. 別部品の取り付け方法は、溶着による請求項5または6に記載の送風機羽根車。 The blower impeller according to claim 5 or 6, wherein a method for attaching the separate part is welding. 別部品の取り付け方法は、ネジ止めによる請求項5または6に記載の送風機羽根車。 The blower impeller according to claim 5 or 6, wherein the attachment method of the separate part is screwed. 請求項1から8のいずれかに記載の送風機羽根車と、これを回転させるモータと、このモータを固定するフレームを備えた送風機。 A blower comprising the blower impeller according to any one of claims 1 to 8, a motor for rotating the blower impeller, and a frame for fixing the motor.
JP2010236170A 2010-10-21 2010-10-21 Blower impeller and blower with the same Pending JP2012087713A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104033422A (en) * 2014-06-12 2014-09-10 浙江理工大学 Small axial flow fan with splitter vanes
US10267338B2 (en) 2016-07-27 2019-04-23 Nidec Corporation Impeller and motor
CN109723672A (en) * 2019-02-26 2019-05-07 珠海格力电器股份有限公司 A kind of axial-flow leaf and axial flow blower

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104033422A (en) * 2014-06-12 2014-09-10 浙江理工大学 Small axial flow fan with splitter vanes
US10267338B2 (en) 2016-07-27 2019-04-23 Nidec Corporation Impeller and motor
CN109723672A (en) * 2019-02-26 2019-05-07 珠海格力电器股份有限公司 A kind of axial-flow leaf and axial flow blower

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