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JP2007040299A - Passive fan assembly - Google Patents

Passive fan assembly Download PDF

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Publication number
JP2007040299A
JP2007040299A JP2006179019A JP2006179019A JP2007040299A JP 2007040299 A JP2007040299 A JP 2007040299A JP 2006179019 A JP2006179019 A JP 2006179019A JP 2006179019 A JP2006179019 A JP 2006179019A JP 2007040299 A JP2007040299 A JP 2007040299A
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Prior art keywords
fan assembly
impeller
passive fan
housing
blades
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JP2006179019A
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Japanese (ja)
Inventor
Chia-Ming Hsu
家銘 許
Junsei Cho
楯成 張
Wen-Hsi Huang
文喜 黄
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Taida Electronic Industry Co Ltd
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Taida Electronic Industry Co Ltd
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Publication of JP2007040299A publication Critical patent/JP2007040299A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F04D29/544—Blade shapes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a passive fan assembly capable of enhancing an effect of heat dissipation by effectively increasing an efficiency of using an airflow supplied by an airflow supply device. <P>SOLUTION: The passive fan assembly includes a base 1, an impeller 2 provided on the base 1 and including a plurality of driven blades 22 as rotor blades provided at and around a hub 20, and a cover 3 fitted into the base 1 and having a plurality of guide blades 34 corresponding to the plurality of driven blades 22 of the impeller 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、受動式ファンアセンブリに関し、特に、インペラより得られた動力を効果的に増加し、エネルギー変換効率を向上することができる案内翼を有する受動式ファンアセンブリに関するものである。   The present invention relates to a passive fan assembly, and more particularly, to a passive fan assembly having guide vanes that can effectively increase power obtained from an impeller and improve energy conversion efficiency.

一般のファンは、モーターと共に用いられ、モーターの運転を用いてファンを回転し、熱放散の効果を達成する。こうしたモーターを備えたファンは、例えば特許文献１などに開示されている。   Common fans are used with motors, and motor operation is used to rotate the fans to achieve the effect of heat dissipation. A fan equipped with such a motor is disclosed in, for example, Patent Document 1.

しかし、従来のファンの構造は、いくつかの欠点を有する。１つには、ファンアセンブリとモーターは、必ず合わせて用いなくてはならないことで、よって、ファンを用いて熱放散の効果を達成したい場合、動力を提供するモーターが必要となる。よって、モーターの製造に際し実装コストが掛かる。２つには、モーターそのものが一定の体積を占めるため、その構造を簡易化してもファンの小型化を効果的に達成できない。３つには、熱放散されなければならない部品が電子システムの様々な位置に設けられた場合、２個以上のファンとモーターが必要となる。電子システムに用いられるモーターが多くなればなるほど、供給され、消費されるべき電力が増し、電力を節約する風潮に適合しない。
特開２００２−１１２４９９号公報 However, the conventional fan structure has several drawbacks. For one thing, the fan assembly and motor must be used together, so a motor that provides power is required if the fan is to be used to achieve the effect of heat dissipation. Therefore, a mounting cost is required for manufacturing the motor. Secondly, since the motor itself occupies a certain volume, the size of the fan cannot be effectively reduced even if the structure is simplified. Third, two or more fans and motors are required when components that must be dissipated are located at various locations in the electronic system. The more motors that are used in an electronic system, the more power that must be supplied and consumed, and it is not adapted to the trend of saving power.
JP 2002-112499 A

本発明の目的は、上述の欠点に対して、気流供給装置より提供された気流の使用効率を効果的に上げることにより、熱放散の効果を向上することができる受動式ファンアセンブリを提供する。   The object of the present invention is to provide a passive fan assembly that can improve the effect of heat dissipation by effectively increasing the efficiency of use of the airflow provided by the airflow supply device.

本発明の目的は、インペラの前方に設置された複数の案内翼を有する受動式ファンアセンブリを提供する。前記複数の案内翼は、前記インペラの回転翼に対してその断面が所定の傾斜角度を有し、前記複数の案内翼を通過した気流が方向を変え、前記インペラの回転翼にほぼ垂直に衝突して、インペラを効果的に回転させ、熱放散の効率を上げる。   An object of the present invention is to provide a passive fan assembly having a plurality of guide vanes installed in front of an impeller. The cross-sections of the plurality of guide blades have a predetermined inclination angle with respect to the impeller rotor blades, and the airflow passing through the plurality of guide blades changes direction and collides with the impeller rotor blades substantially perpendicularly Thus, the impeller is effectively rotated to increase the efficiency of heat dissipation.

上述の目的を達成するために、本発明は、ベースと、前記ベースに接続されたインペラと、前記インペラの前方に位置され、且つ、前記ベースと接合されたカバーとを含む受動式ファンアセンブリを提供する。   To achieve the above object, the present invention provides a passive fan assembly including a base, an impeller connected to the base, and a cover positioned in front of the impeller and joined to the base. provide.

前記インペラは、ハブと、前記ハブの周囲に接続された複数の従動翼と、前記複数の従動翼の端部に接続されたパーティションと、前記パーティションの外周に設置された複数の動翼（active blade）と、前記ハブから軸方向に伸びた回転軸とを含む。   The impeller includes a hub, a plurality of driven blades connected around the hub, a partition connected to ends of the plurality of driven blades, and a plurality of active blades (active blades) installed on the outer periphery of the partition. blade) and a rotation axis extending in the axial direction from the hub.

前記ベースは、ハウジングと、軸受座と、前記ハウジングと前記軸受座に接続された複数の接続部品とを含む。前記軸受座内は、前記インペラの回転軸を受ける少なくとも１つの軸受を含む。   The base includes a housing, a bearing seat, and a plurality of connection parts connected to the housing and the bearing seat. The bearing seat includes at least one bearing that receives a rotation shaft of the impeller.

前記カバーは、ハウジングと、固定部と、前記固定部の周囲に設置された複数の案内翼と、前記複数の案内翼の端部に接続された固定リングと、前記固定リングと前記ハウジングに接続された支持部品とを含む。   The cover includes a housing, a fixed portion, a plurality of guide blades installed around the fixed portion, a fixed ring connected to ends of the plurality of guide blades, and a connection to the fixed ring and the housing. Supporting parts.

前記カバーの案内翼は、前記インペラの従動翼にほぼ垂直な交角を有しており、前記案内翼を通過した気流の方向を変え、当該気流が前記従動翼にほぼ垂直に衝突して、前記動翼を回転させる。   The guide wing of the cover has an angle of intersection substantially perpendicular to the driven blade of the impeller, changes the direction of the airflow that has passed through the guide wing, the airflow collides with the driven wing substantially perpendicularly, and Rotate the blade.

本発明の受動式ファンアセンブリは、気流の使用効率を効果的に向上させ、動翼の熱放散の能力を高めることができる。   The passive fan assembly of the present invention can effectively improve the efficiency of airflow use and increase the ability of the blades to dissipate heat.

本発明についての目的，特徴，長所が一層明確に理解されるよう、以下に実施形態を例示し、図面を参照にしながら、詳細に説明する。   In order that the objects, features, and advantages of the present invention will be more clearly understood, embodiments will be described below in detail with reference to the drawings.

図１，図２および図４を共に参照すると、本発明の受動式ファンアセンブリは、ベース１と、前記ベース１の上に設置されたインペラ２と、前記インペラ２の前方に位置され、且つ、前記ベース１に接合されたカバー３とを含む。   Referring to FIGS. 1, 2 and 4, the passive fan assembly of the present invention includes a base 1, an impeller 2 installed on the base 1, a front of the impeller 2, and And a cover 3 joined to the base 1.

前記インペラ２は、ハブ２０と、前記ハブ２０の周囲を囲むように設置された複数の回転翼である従動翼（runner blade）２２と、前記複数の従動翼２２の端部に接続されたパーティション２４と、前記複数の従動翼２２の外側にあって、前記パーティション２４の外周に設置された複数の動翼（active blade）２６と、前記ハブ２０から軸方向に伸びた回転軸２８とを含み、仕切り部であるパーティション２４は複数の従動翼２２と複数の動翼２６との間に設置される。   The impeller 2 includes a hub 20, a driven blade (runner blade) 22 that is a plurality of rotating blades installed so as to surround the periphery of the hub 20, and a partition connected to ends of the plurality of driven blades 22. 24, a plurality of active blades 26 disposed outside the plurality of driven blades 22 and disposed on the outer periphery of the partition 24, and a rotating shaft 28 extending in the axial direction from the hub 20. The partition 24, which is a partition portion, is installed between the plurality of driven blades 22 and the plurality of blades 26.

前記ベース１は、フレームとしてのハウジング１０と、軸受座１２と、前記ハウジング１０および前記軸受座１２に接続された複数のリブ１４とを含む。前記軸受座１２内は、前記インペラ２の回転軸２８を受ける少なくとも１つの軸受１６を含む。前記軸受１６は、ブッシュ軸受，玉軸受，磁気軸受または他のあらゆる別な軸受であることもでき、前記回転軸２８を前記軸受１６内で安定して回転できればよい。前記リブ１４は、複数の案内翼を代用することもでき、これにより気流の流れを導くことができる。   The base 1 includes a housing 10 as a frame, a bearing seat 12, and a plurality of ribs 14 connected to the housing 10 and the bearing seat 12. The bearing seat 12 includes at least one bearing 16 that receives the rotation shaft 28 of the impeller 2. The bearing 16 may be a bush bearing, a ball bearing, a magnetic bearing, or any other bearing, as long as the rotating shaft 28 can be stably rotated in the bearing 16. The rib 14 can substitute for a plurality of guide vanes, and can thereby guide the flow of airflow.

カバー３は、フレームとしてベース１に接続されたハウジング３０と、固定部３２と、前記固定部３２の周囲に設置された複数の案内翼３４と、前記複数の案内翼３４の端部に接続された固定リング３６と、前記固定リング３６および前記ハウジング３０に接続された複数の支持部品３８とを含む。   The cover 3 is connected to a housing 30 connected to the base 1 as a frame, a fixed portion 32, a plurality of guide blades 34 installed around the fixed portion 32, and ends of the plurality of guide blades 34. And a plurality of supporting parts 38 connected to the fixing ring 36 and the housing 30.

そして、一側のハウジング３０には複数の案内翼３２が設置される一方で、他側のハウジング１０には軸受座１２を有し、このハウジング１０の中にインペラ２が収容される。   A plurality of guide vanes 32 are installed in one housing 30, while the other housing 10 has a bearing seat 12 in which the impeller 2 is accommodated.

図３は、前記カバー３の案内翼３４と前記インペラ２の従動翼２２との相対位置を表している。前記カバー３の各案内翼３４は、前記インペラ２の各従動翼２２にそれぞれ対応して設けられている。案内翼３４および従動翼２２の前縁と後縁が表れる翼断面において、前記カバー３の各々の案内翼３４は、それに対応する前記インペラ２の従動翼２２とほぼ垂直な９０°の交角を有するように配置されており、前記案内翼３４を通った気流の方向を変え、当該気流が前記従動翼２２にほぼ垂直に衝突して、前記動翼２６を回転させる。   FIG. 3 shows a relative position between the guide blade 34 of the cover 3 and the driven blade 22 of the impeller 2. Each guide blade 34 of the cover 3 is provided corresponding to each driven blade 22 of the impeller 2. In the blade cross section in which the leading edge and the trailing edge of the guide blade 34 and the driven blade 22 appear, each guide blade 34 of the cover 3 has a 90 ° intersection angle substantially perpendicular to the corresponding driven blade 22 of the impeller 2. The direction of the airflow that has passed through the guide blades 34 is changed, and the airflow collides with the driven blades 22 almost perpendicularly to rotate the moving blades 26.

本発明の受動式ファンアセンブリを気流供給（airflow‐providing）システムと共に用いる時、前記カバー３を気流供給システムの気流供給装置（例えば、軸流ファンまたは送風機）の排気口４に接合し、前記気流供給装置より提供された高圧気流が、前記案内翼３４を通して受動式ファンアセンブリに完全に入ることができるようにする。前記各案内翼３４が傾斜した曲面を有することから、元の軸方向で入った気流の方向を変えることができ、前記インペラ２の従動翼２２に気流をより効果的に衝突させることができる。そのため、インペラ２を効果的に回転させ、熱放散の効率を上げることができる。   When the passive fan assembly of the present invention is used with an airflow-providing system, the cover 3 is joined to an exhaust port 4 of an airflow supply device (for example, an axial fan or a blower) of the airflow supply system. The high-pressure airflow provided by the supply device is allowed to enter the passive fan assembly completely through the guide vanes 34. Since each guide vane 34 has an inclined curved surface, the direction of the airflow entering in the original axial direction can be changed, and the airflow can collide more effectively with the driven blade 22 of the impeller 2. Therefore, the impeller 2 can be effectively rotated and the efficiency of heat dissipation can be increased.

本発明の案内翼３４の利点をより明白に理解できるように、図５Ａと図５Ｂを参照すると、図５Ａは、案内翼を設けていない場合において、受動式ファンアセンブリに入った気流の速度線図である。気流供給装置によって提供される気流が軸方向の高圧気流であることから、その速度をＶｉｎとすると、前記気流が前記従動翼２２に効果的に働くことができるベクトル成分の速度Ｖ２に対して、従動翼２２の動作に貢献しないベクトル成分の速度Ｖ１があり、多くの部分の気流による運動エネルギーが無駄になっていることがわかる。一方、図５Ｂは、案内翼３４を設けた場合の、本発明における受動式ファンアセンブリに入った気流の速度線図である。ここに示すように、元の軸方向の気流速度Ｖｉｎは、前記案内翼３４の翼面に沿って方向を変え、従動翼２２とほぼ垂直なベクトル成分の速度Ｖ’ｉｎとなる。前記案内翼３４と前記従動翼２２との交角がほぼ垂直に設計されていることから、ほとんどの気流が前記従動翼２２に直接、働くことができる。気流が前記従動翼２２に働く力が大きければ大きいほど、従動翼２２が動翼（active blade）２６を動かす力も大きくなり、動翼２６による熱放散の効率を著しく改善させる。 To more clearly understand the advantages of the guide vanes 34 of the present invention, referring to FIGS. 5A and 5B, FIG. 5A shows the velocity line of the airflow entering the passive fan assembly when no guide vanes are provided. FIG. Since the air flow provided by the air flow supply device is a high-pressure air flow in the axial direction, when the speed is V in , the air flow can effectively act on the driven blade 22 with respect to the vector component speed V 2. Thus, it can be seen that there is a vector component velocity V 1 that does not contribute to the operation of the driven blade 22, and kinetic energy due to airflow in many parts is wasted. On the other hand, FIG. 5B is a velocity diagram of the airflow entering the passive fan assembly according to the present invention when the guide vanes 34 are provided. As shown here, the airflow velocity V in in the original axial direction changes along the blade surface of the guide vane 34 and becomes a vector component velocity V ′ in substantially perpendicular to the driven blade 22. Since the angle of intersection between the guide blade 34 and the driven blade 22 is designed to be substantially vertical, most of the airflow can directly act on the driven blade 22. The greater the force that the airflow exerts on the driven blade 22, the greater the force that the driven blade 22 moves the active blade 26, which significantly improves the efficiency of heat dissipation by the moving blade 26.

以上、本発明の好適な実施例を例示したが、これは本発明を限定するものではなく、本発明の精神及び範囲を逸脱しない限りにおいては、当業者であれば行い得る少々の変更や修飾を付加することは可能である。従って、本発明が保護を請求する範囲は、特許請求の範囲を基準とする。   The preferred embodiments of the present invention have been described above, but this does not limit the present invention, and a few changes and modifications that can be made by those skilled in the art without departing from the spirit and scope of the present invention. It is possible to add. Accordingly, the scope of the protection claimed by the present invention is based on the scope of the claims.

本発明に基づく受動式ファンアセンブリの立体斜視図である。1 is a three-dimensional perspective view of a passive fan assembly according to the present invention. FIG. 本発明に基づく受動式ファンアセンブリの立体分解図である。1 is an exploded view of a passive fan assembly according to the present invention. FIG. 図２の案内翼と従動翼の相対位置を表した断面概略図である。It is the cross-sectional schematic showing the relative position of the guide blade of FIG. 2, and a driven blade. 本発明に基づく受動式ファンアセンブリの断面概略図である。1 is a schematic cross-sectional view of a passive fan assembly according to the present invention. 案内翼を有しない場合における受動式ファンアセンブリの気流の速度線図である。It is a velocity diagram of the airflow of a passive fan assembly in the case of not having guide vanes. 本発明の案内翼を有する場合における受動式ファンアセンブリの気流の速度線図である。It is a velocity diagram of the airflow of a passive fan assembly in the case of having the guide vanes of the present invention.

符号の説明Explanation of symbols

１ ベース
１０ ハウジング
１２ 軸受座
１４ リブ
１６ 軸受
２ インペラ
２０ ハブ
２２ 従動翼
２４ パーティション
２６ 動翼
２８ 回転軸
３ カバー
３０ ハウジング
３２ 固定部
３４ 案内翼
３６ 固定リング
３８ 支持部品
４ 排気口
DESCRIPTION OF SYMBOLS 1 Base 10 Housing 12 Bearing seat 14 Rib 16 Bearing 2 Impeller 20 Hub 22 Follower blade 24 Partition 26 Rotor blade 28 Rotating shaft 3 Cover 30 Housing 32 Fixing part 34 Guide vane 36 Fixing ring 38 Supporting part 4 Exhaust port

Claims (15)

ベースと、
前記ベースの上に設置され、ハブおよび前記ハブの周囲に設置された複数の回転翼を含むインペラと、
前記ベースに接合され、前記インペラの前記複数の回転翼に対応して複数の案内翼を有するカバーとを含む受動式ファンアセンブリ。 Base and
An impeller installed on the base and including a hub and a plurality of rotor blades installed around the hub;
A passive fan assembly including a cover joined to the base and having a plurality of guide blades corresponding to the plurality of rotor blades of the impeller. 前記案内翼と前記インペラの前記回転翼の断面は、交角が存在する請求項１に記載の受動式ファンアセンブリ。   2. The passive fan assembly according to claim 1, wherein a cross section of the guide blade and the impeller impeller has a cross section. 前記交角は、ほぼ垂直である請求項２に記載の受動式ファンアセンブリ。   The passive fan assembly of claim 2, wherein the angle of intersection is substantially vertical. 前記インペラの前記回転翼の外側には、複数の動翼が更に設置される請求項１に記載の受動式ファンアセンブリ。   The passive fan assembly according to claim 1, wherein a plurality of moving blades are further installed outside the rotor blades of the impeller. 前記インペラは、前記回転翼と前記動翼との間に設置されたパーティションを更に含む請求項４に記載の受動式ファンアセンブリ。   The passive fan assembly of claim 4, wherein the impeller further includes a partition disposed between the rotor blade and the rotor blade. 前記ベースは、
ハウジングと、
軸受座と、
前記ハウジングおよび前記軸受座に接続された複数のリブまたは案内翼とを含む請求項１に記載の受動式ファンアセンブリ。 The base is
A housing;
A bearing seat;
The passive fan assembly of claim 1, comprising a plurality of ribs or guide vanes connected to the housing and the bearing seat. 前記軸受座内は、前記インペラの回転軸を受ける少なくとも１つの軸受を有する請求項６に記載の受動式ファンアセンブリ。   The passive fan assembly according to claim 6, wherein the bearing seat has at least one bearing for receiving a rotation shaft of the impeller. 前記カバーは、
前記ベースに接続されたハウジングと、
前記案内翼が周囲に設置された固定部と、
前記案内翼の端部に接続された固定リングと、
前記固定リングおよび前記ハウジングに接続された複数の支持部品とを含む請求項１に記載の受動式ファンアセンブリ。 The cover is
A housing connected to the base;
A fixed portion around which the guide wing is installed;
A fixing ring connected to the end of the guide wing;
The passive fan assembly of claim 1, comprising a plurality of support components connected to the retaining ring and the housing. 外部の気流供給システムより提供された気流によって回転する請求項１に記載の受動式ファンアセンブリ。   The passive fan assembly according to claim 1, wherein the passive fan assembly is rotated by an air flow provided by an external air supply system. 軸流ファンまたは送風機を含む前記気流供給システムの排気口が、前記カバーに接続される請求項９に記載の受動式ファンアセンブリ。   The passive fan assembly according to claim 9, wherein an exhaust port of the air flow supply system including an axial fan or a blower is connected to the cover. その一側に複数の案内翼が設置されるハウジングと、
前記ハウジングの中に収容されるインペラとを含み、
前記インペラは、ハブ，前記ハブの周囲に設置された複数の従動翼，前記複数の従動翼の端部に接続されたパーティション，および前記パーティションの外周に設置された複数の動翼を含み、
前記複数の案内翼は、前記インペラの前記複数の従動翼に対応し、且つ、前記案内翼と前記回転翼の断面は交角が存在する受動式ファンアセンブリ。 A housing in which a plurality of guide vanes are installed on one side;
An impeller housed in the housing,
The impeller includes a hub, a plurality of driven blades installed around the hub, a partition connected to ends of the driven blades, and a plurality of blades installed on the outer periphery of the partition,
The plurality of guide blades correspond to the plurality of driven blades of the impeller, and a cross section of the guide blade and the rotary blade has a crossing angle. 前記交角は、ほぼ垂直である請求項１１に記載の受動式ファンアセンブリ。   The passive fan assembly of claim 11, wherein the angle of intersection is substantially vertical. 前記ハウジングの他側は、軸受座を有する請求項１１に記載の受動式ファンアセンブリ。   The passive fan assembly of claim 11, wherein the other side of the housing has a bearing seat. 前記ハウジングおよび前記軸受座に接続された複数のリブまたは案内翼を更に含む請求項１３に記載の受動式ファンアセンブリ。   The passive fan assembly of claim 13, further comprising a plurality of ribs or guide vanes connected to the housing and the bearing seat. 前記ハウジングは、
前記案内翼が周囲に設置された固定部と、
前記案内翼の端部に接続された固定リングと、
前記固定リングおよび前記ハウジングに接続された複数の支持部品とを更に含む請求項１１に記載の受動式ファンアセンブリ。 The housing is
A fixed portion around which the guide wing is installed;
A fixing ring connected to an end of the guide wing;
The passive fan assembly of claim 11, further comprising a plurality of support components connected to the retaining ring and the housing.
JP2006179019A 2005-08-04 2006-06-29 Passive fan assembly Withdrawn JP2007040299A (en)

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