JP2009243405A - Cooling device - Google Patents

Cooling device Download PDF

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JP2009243405A
JP2009243405A JP2008092884A JP2008092884A JP2009243405A JP 2009243405 A JP2009243405 A JP 2009243405A JP 2008092884 A JP2008092884 A JP 2008092884A JP 2008092884 A JP2008092884 A JP 2008092884A JP 2009243405 A JP2009243405 A JP 2009243405A
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fan
cooling device
wing
wings
intake
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JP4968627B2 (en
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Takayuki Sasaki
孝之 佐々木
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Toshiba Home Technology Corp
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Toshiba Home Technology Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooling device optimizing performance in accordance with an actual machine condition. <P>SOLUTION: The cooling device 1 is provided with a casing 7 and a cover 8, intake ports 10 and 12 on the casing 7 and the cover 8, an exhaust port 13, and a rotor 5. The rotor 5 is provided with a fan 4, and a straightening vane 14 dividing the fan 4, and a first fan part 15 and a second fan part 16 of the fan 4 divided by the straightening vane 14 have shapes different from each other. In accordance with circumstances of intake spaces S1 and S2 of the intake ports 10 and 12 in the actual machine condition where the cooling device 1 is installed in thin electronic equipment D, the first fan part 15 and the second fan part 16 of the fan 4 have optimum shapes for sucking air to the intake ports 10 and 12 with high static pressure and high air volume and for reducing noise in sucking, and thereby, high static pressure and high air volume of the cooling device 1 can be achieved, and static pressure performance and air volume performance of the cooling device 1 in the actual machine condition can be optimized. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、機器に搭載され前記機器を冷却するための冷却装置に関する。   The present invention relates to a cooling device mounted on a device for cooling the device.

最近、機器にあっては、さらなる小形化・薄形化が要請され、機器内の限られた空間の中で、いかにして効果的に冷却するのかが重要な課題となっている。そこで、機器内に、冷却装置が組付けられている（特許文献１）。   Recently, there has been a demand for further downsizing and thinning of devices, and how to effectively cool them in a limited space within the device has become an important issue. Therefore, a cooling device is assembled in the device (Patent Document 1).

図９は、従来の冷却装置に備えられた回転体を示すものであり、回転体１０１は、羽体１０３を備え、分割部材１０４によって羽体１０３を一方１０５と他方１０６とに分割している。   FIG. 9 shows a rotating body provided in a conventional cooling device. The rotating body 101 includes a wing body 103, and the wing body 103 is divided into one 105 and the other 106 by a dividing member 104. .

従来の冷却装置を機器に組み込んで使用する場合、機器内部の部品の節約により、吸気部の吸気スペースが制限されており、且つ吸気部によってその吸気スペースの条件が異なっていた。
特開２００２−２１７８２号公報 When a conventional cooling device is incorporated in a device and used, the intake space of the intake portion is limited due to the saving of parts inside the device, and the condition of the intake space varies depending on the intake portion.
Japanese Patent Laid-Open No. 2002-21784

しかし、従来の冷却装置においては、実機条件に対応できず、冷却装置の性能が十分に発揮できずに限界があるという問題点があった。   However, the conventional cooling device has a problem in that it cannot cope with actual machine conditions, and the performance of the cooling device cannot be fully exhibited, and there is a limit.

本発明は、上記問題点を解決して、実機条件に応じて性能が最適化された冷却装置を提供することを目的とする。   An object of the present invention is to solve the above problems and to provide a cooling device whose performance is optimized according to actual machine conditions.

また本発明は、静音化された冷却装置を提供することを目的とする。   Another object of the present invention is to provide a cooling device that is quiet.

請求項１の発明の冷却装置では、外郭部材と、前記外郭部材に少なくとも１つ以上の吸気部と、少なくとも１つ以上の排気部と、回転体とを備えた冷却装置であって、前記回転体は、羽部と、前記羽部を分割する分割部材とを備えると共に、前記分割部材に分割された前記羽部の一方と他方を、相互に異なる形状としたことを特徴とする。   The cooling device according to claim 1 is a cooling device including an outer member, at least one intake portion, at least one exhaust portion, and a rotating body on the outer member, wherein the rotation member The body includes a wing portion and a dividing member that divides the wing portion, and one and the other of the wing portions divided into the dividing members have different shapes.

請求項２の発明の冷却装置では、請求項１記載の冷却装置において、前記羽部の一方と他方では、前記羽部の一方側に備えた羽体と羽体との間に、前記羽部の他方側に備えた羽体を配置したことを特徴とする。   According to a second aspect of the present invention, there is provided the cooling device according to the first aspect, wherein the wing portion is provided between the wing body provided on one side of the wing portion between one and the other of the wing portion. The wings provided on the other side are arranged.

請求項３の発明の冷却装置では、請求項１又は２記載の冷却装置において、前記羽部の一方と他方に、略同形状の羽体を備え、前記羽部の一方側に備えた前記羽体及び前記羽部の他方側に備えた前記羽体の数を、相互に異なるものとしたことを特徴とする。   According to a third aspect of the present invention, there is provided the cooling device according to the first or second aspect, wherein the wings are provided with wings having substantially the same shape on one side and the other side of the wings, and provided on one side of the wings. The number of the wings provided on the other side of the body and the wings is different from each other.

請求項４の発明の冷却装置では、請求項１記載の冷却装置において、前記羽部の一方又は他方に、略同形状の羽体を備え、前記羽部に備えた前記羽体の角度を、相互に異なるものとしたことを特徴とする。   In the cooling device of the invention of claim 4, in the cooling device of claim 1, one or the other of the wings is provided with a wing of substantially the same shape, and the angle of the wing provided in the wing is It is characterized by being different from each other.

請求項５の発明の冷却装置では、請求項１〜３のいずれか１項に記載の冷却装置において、前記羽部の一方と他方に、それぞれ羽体を備え、前記羽部の一方側に備えた前記羽体及び前記羽部の他方側に備えた前記羽体の向きとは、相互に異なる向きに設けられたことを特徴とする。   A cooling device according to a fifth aspect of the present invention is the cooling device according to any one of the first to third aspects, wherein a wing is provided on one and the other of the wings, and is provided on one side of the wings. The wings provided on the other side of the wings and the wings are provided in directions different from each other.

請求項６の発明の冷却装置では、請求項１〜５のいずれか１項に記載の冷却装置において、前記分割部材は、前記羽部の一方又は他方のどちらかに偏って設けられたことを特徴とする。   In the cooling device of the invention according to claim 6, in the cooling device according to any one of claims 1 to 5, the dividing member is provided so as to be biased to one or the other of the wings. Features.

請求項１の発明によれば、冷却装置を機器に組み込んだ実機条件として吸気部の状況に応じて、羽体の一方と他方を、吸気部に高静圧・高風量で吸気可能で、且つ吸気時の騒音を低減させる最適な形状とすることにより、冷却装置の高静圧・高風量化を図り、実機条件での冷却装置の静圧性能及び風量性能を最適化することができる。   According to the invention of claim 1, according to the condition of the intake section as an actual machine condition in which the cooling device is incorporated in the equipment, one and the other of the wings can be sucked into the intake section with high static pressure and high air flow, and By adopting an optimal shape that reduces noise during intake, the static pressure and air flow performance of the cooling device can be optimized under actual machine conditions by increasing the static pressure and air volume of the cooling device.

請求項２の発明によれば、羽体の回転時において、回転する羽体の一方と他方の騒音の発生時に、羽体の一方と他方とが互いに共鳴することを防ぎ、冷却装置の静音化を図ることができる。   According to the invention of claim 2, during the rotation of the wing, when the noise of one and the other of the rotating wings is generated, one and the other of the wings are prevented from resonating with each other, and the cooling device is made quiet. Can be achieved.

請求項３の発明によれば、羽体の回転時において、回転する羽体の一方と他方の騒音の発生時に、羽体の一方と他方とが互いに共鳴することを防ぎ、冷却装置の静音化を図ることができる。   According to the invention of claim 3, during the rotation of the wing body, when the noise of one and the other of the rotating wing bodies is generated, one and the other of the wing bodies are prevented from resonating with each other, and the cooling device is made silent. Can be achieved.

請求項４の発明によれば、羽体の回転時において、回転する羽体の一方と他方の騒音の発生時に、羽体の一方と他方とが互いに共鳴することを防ぎ、冷却装置の静音化を図ることができる。   According to the invention of claim 4, during the rotation of the wing, it is possible to prevent one of the wings from resonating with the other when the noise of one and the other of the rotating wings is generated, thereby reducing the noise of the cooling device. Can be achieved.

請求項５の発明によれば、羽体の回転時において、回転する羽体の一方と他方の騒音の発生時に、羽体の一方と他方とが互いに共鳴することを防ぎ、冷却装置の静音化を図ることができる。   According to the fifth aspect of the present invention, during the rotation of the wing, it is possible to prevent the wing from resonating with each other when noise occurs on one and the other of the rotating wings, thereby reducing the noise of the cooling device. Can be achieved.

請求項６の発明によれば、冷却装置を機器に組み込んだ実機条件として吸気部の状況に応じて、羽体の一方と他方を、吸気部に最適な風量に設定することにより、冷却装置の高静圧・高風量化を図り、実機条件での冷却装置の静圧性能及び風量性能を最適化することができる。   According to the sixth aspect of the present invention, by setting one and the other of the wings to an optimum air volume in the intake section according to the situation of the intake section as an actual machine condition in which the cooling apparatus is incorporated into the equipment, High static pressure and high air flow can be achieved, and the static pressure performance and air flow performance of the cooling device under actual machine conditions can be optimized.

図１及び図２は、本発明の第１実施例を示すもので、冷却装置１は全体として扁平な形状をなし、例えばノート型パソコンなどの薄型電子機器内に収容される。また、冷却装置１の内部には、送風体としてファンモータ２を備えている。   1 and 2 show a first embodiment of the present invention. The cooling device 1 has a flat shape as a whole, and is accommodated in a thin electronic device such as a notebook personal computer. The cooling device 1 includes a fan motor 2 as a blower.

ファンモータ２は、周知のようにカップ状をなすロータ３の周囲にファン４を備えた回転体としての遠心型ファンの回転子５と、図１に示すように回転子５の中心にある一点鎖線Ｘを回転軸Ｘとして、回転子５を回転させる駆動源としての駆動部６とによって構成される。一方、冷却装置１の外郭部材は、有底扁平状のケーシング７と、このケーシング７の上面開口部を塞ぐカバー８とにより構成され、当該ケーシング７とカバー８が冷却装置１内における送風路９Ａ,９Ｂを形成している。   The fan motor 2 includes a rotor 5 of a centrifugal fan as a rotor provided with a fan 4 around a cup-shaped rotor 3 as well known, and a point at the center of the rotor 5 as shown in FIG. It is comprised by the drive part 6 as a drive source which rotates the rotor 5 by making the chain line X into the rotating shaft X. FIG. On the other hand, the outer member of the cooling device 1 is constituted by a bottomed flat casing 7 and a cover 8 that closes the upper surface opening of the casing 7, and the casing 7 and the cover 8 are the air passage 9 </ b> A in the cooling device 1. , 9B.

前記ケーシング７の下面部には、ファンモータ２の回転で空気を冷却装置１内部に吸い込むための一方の吸気口１０が設けられている。この吸気口１０の略中央には、ケーシング７に形成したブリッジで吸気口１０の周囲部と繋がれた島状のモータ載置部１１が設けられる。ケーシング７のモータ載置部１１には、前記ファンモータ２の駆動部６が装着され、ファンモータ２全体がケーシング７に具備される。   One air inlet 10 for sucking air into the cooling device 1 by rotation of the fan motor 2 is provided on the lower surface of the casing 7. In the approximate center of the air inlet 10, an island-shaped motor mounting portion 11 connected to the peripheral portion of the air inlet 10 by a bridge formed in the casing 7 is provided. The motor mounting portion 11 of the casing 7 is mounted with the driving portion 6 of the fan motor 2, and the entire fan motor 2 is provided in the casing 7.

カバー８は平板状で、前記吸気口１０に略対向する位置に他方の吸気口１２が設けられている。各吸気口１０，１２は同径であっても、さもなければ異なる径であってもよい。また、ケーシング７またはカバー８のいずれか一方に、複数の吸気口１０，１２があってもよい。ケーシング７の下面部およびカバー８は、ファン４の外周の一部を覆っている。そして、回転子５の外周を囲うようにして、カバー８がケーシング７と例えば加締めなどにより取付け固定される。   The cover 8 has a flat plate shape, and the other intake port 12 is provided at a position substantially opposite to the intake port 10. The intake ports 10 and 12 may have the same diameter or may have different diameters. In addition, a plurality of air inlets 10 and 12 may be provided on either the casing 7 or the cover 8. The lower surface portion of the casing 7 and the cover 8 cover a part of the outer periphery of the fan 4. The cover 8 is attached and fixed to the casing 7 by, for example, caulking so as to surround the outer periphery of the rotor 5.

冷却装置１の側面には、ファンモータ２の回転で空気を冷却装置１外部に吐き出すための排気口１３が、ケーシング７とカバー８により囲まれて設けられる。ここでの排気口１３は、各吸気口１０，１２と直交する方向にあって、略矩形状に形成される。本実施例には図示していないが、この排気口１３に例えばフィン状の放熱部を配設し、薄型電子機器Ｄ内に配置されたＭＰＵなどの発熱部品からの熱を、ヒートパイプなどの熱輸送手段で放熱部に導いてもよい。また、ケーシング７またはカバー８の少なくとも一方は、剛性の高い金属で形成される。なお金属以外では、樹脂などを外郭の材料として用いてもよい。   On the side surface of the cooling device 1, an exhaust port 13 for discharging air to the outside of the cooling device 1 by rotation of the fan motor 2 is provided surrounded by a casing 7 and a cover 8. The exhaust port 13 here is in a direction orthogonal to the intake ports 10 and 12 and is formed in a substantially rectangular shape. Although not illustrated in the present embodiment, for example, a fin-like heat radiating portion is disposed at the exhaust port 13, and heat from a heat-generating component such as an MPU disposed in the thin electronic device D is transferred to a heat pipe or the like. You may guide to a thermal radiation part with a heat transport means. Further, at least one of the casing 7 and the cover 8 is formed of a metal having high rigidity. In addition to metals, resin or the like may be used as the outer material.

ここで図１及び２に示すようにファン４は、ロータ３の外周に対して回転軸Ｘと直交する方向に突出して形成された分割部材としての円環状の整流板１４により、回転軸Ｘ方向において第１のファン部１５と第２のファン部１６とに２分割されている。   Here, as shown in FIGS. 1 and 2, the fan 4 is arranged in the direction of the rotation axis X by an annular rectifying plate 14 as a divided member formed to protrude in a direction orthogonal to the rotation axis X with respect to the outer periphery of the rotor 3. 1 is divided into a first fan part 15 and a second fan part 16.

第１のファン部１５及び第２のファン部１６には、ロータ３の外周に沿って複数配置され、整流板１４と一体に設けられると共に、互いに略同形状の第１のファンブレード１７及び第２のファンブレード１８を備えている。ここで、第１のファンブレード１７及び第２のファンブレード１８の枚数は、略同数とする。   A plurality of first fan portions 15 and second fan portions 16 are arranged along the outer periphery of the rotor 3, are provided integrally with the rectifying plate 14, and have first fan blades 17 and Two fan blades 18 are provided. Here, the number of first fan blades 17 and second fan blades 18 is approximately the same.

これら略同形状を有する第１のファンブレード１７及び第２のファンブレード１８は、それぞれ略同一の曲率を有する第１の円弧部１９及び第２の円弧部２０を備えており、第１の円弧部１９及び第２の円弧部２０における凸側の面（以下、第１の円弧凸面２１及び第２の円弧凸面２２と呼称する）を符号２１,２２に示す。   Each of the first fan blade 17 and the second fan blade 18 having substantially the same shape includes a first arc portion 19 and a second arc portion 20 having substantially the same curvature, respectively, and the first arc. The convex side surfaces (hereinafter referred to as the first arc convex surface 21 and the second arc convex surface 22) in the portion 19 and the second arc portion 20 are denoted by reference numerals 21 and 22, respectively.

ここで、図２に示すようにファン４の回転方向Ｒを時計回りとした場合に、第１のファンブレード１７は、入口角度α１及び出口角度β１を９０度より大きい鈍角に形成され、且つ第１の円弧凸面２１が回転方向Ｒに向けて前向きに形成されており、そのため第１のファン部１５は所謂ターボファンに形成されている。一方、第２のファンブレード１８は、入口角度α２及び出口角度β２を９０度より小さい鋭角に形成され、且つ第２の円弧凸面２２を回転方向Ｒに背向させて後向きに形成されており、そのため第２のファン部１６は所謂シロッコファンに形成されている。   Here, as shown in FIG. 2, when the rotation direction R of the fan 4 is clockwise, the first fan blade 17 is formed so that the inlet angle α1 and the outlet angle β1 are obtuse angles larger than 90 degrees, and One arc-shaped convex surface 21 is formed in the forward direction in the rotation direction R. Therefore, the first fan portion 15 is formed as a so-called turbo fan. On the other hand, the second fan blade 18 is formed so that the entrance angle α2 and the exit angle β2 are acute angles smaller than 90 degrees, and the second arcuate convex surface 22 is formed to face backward in the rotation direction R, and is formed backward. Therefore, the second fan portion 16 is formed as a so-called sirocco fan.

このように本実施例のファン４は、第１のファンブレード１７及び第２のファンブレード１８のいずれか一方の円弧凸面２１,２２が、ファン４の回転方向Ｒに向けて前向きに配設され、他方の円弧凸面２１,２２がファン４の回転方向Ｒに背向させて後向きに配設されている。さらに、ファン４を２分割して形成された第１のファン部１５及び第２のファン部１６において、ファン４の回転方向Ｒに対して前向きのファンブレードを備えたファン部を高圧送風用のターボファンとし、またファン４の回転方向Ｒに対して後向きのファンブレードを備えたファン部を低圧送風用のシロッコファンとして、ファン４は互いにファンブレードの向きが互いに異なるターボファンとシロッコファンを同軸上に一体的に備えた構成としている。   Thus, in the fan 4 of the present embodiment, the arcuate convex surfaces 21 and 22 of either the first fan blade 17 or the second fan blade 18 are disposed forwardly in the rotation direction R of the fan 4. The other arcuate convex surfaces 21 and 22 are disposed rearward in the direction of rotation R of the fan 4. Further, in the first fan part 15 and the second fan part 16 formed by dividing the fan 4 into two parts, the fan part provided with a fan blade facing forward with respect to the rotation direction R of the fan 4 is used for high-pressure air blowing. The turbo fan is a sirocco fan for low-pressure air blowing, and the fan unit having a fan blade facing backward with respect to the rotation direction R of the fan 4 is a coaxial fan of a turbo fan and a sirocco fan whose fan blade directions are different from each other. The structure is provided integrally on the top.

また、第１のファン部１５と第２のファン部１６において、第１のファンブレード１７及び第２のファンブレード１８の相互の外周端２３,２４の整流板１４に対する取付位置を、ファン４の回転方向Ｒに対して半ピッチずらして配設されており、回転軸Ｘ方向において各ファン部１５,１６は、整流板１４を間に挟んだ状態で、隣接するそれぞれの第１のファンブレード１７の外周端２３,２３の間に、第２のファンブレード１８の外周端２４が配設された構成としている。   In the first fan unit 15 and the second fan unit 16, the mounting positions of the outer peripheral ends 23, 24 of the first fan blade 17 and the second fan blade 18 with respect to the rectifying plate 14 are determined with respect to the fan 4. The fan portions 15 and 16 are arranged with a half-pitch shift with respect to the rotation direction R, and the respective fan portions 15 and 16 in the rotation axis X direction are adjacent to the respective first fan blades 17 with the current plate 14 interposed therebetween. The outer peripheral end 24 of the second fan blade 18 is disposed between the outer peripheral ends 23, 23.

さらに、第１のファンブレード１７の回転軸Ｘ方向の高さＨ１に対して、第２のファンブレード１８の回転軸Ｘ方向の高さＨ２は、約１．５倍大きく形成されている。   Further, the height H2 of the second fan blade 18 in the direction of the rotational axis X is formed to be about 1.5 times larger than the height H1 of the first fan blade 17 in the direction of the rotational axis X.

次に、上記のように構成された冷却装置１の作用について説明する。図３に、本発明の冷却装置１をノートパソコン等の薄型電子機器等に組み込んだ状態での断面構造を示しており、符号Ｄは薄型電子機器を示している。薄型電子機器Ｄを起動するのに伴って、当該機器Ｄ内のＭＰＵや他の電子部品（図示せず）が通電状態になり、これらのＭＰＵや電子部品と共に、薄型電子機器Ｄ内の雰囲気温度が上昇する。このとき、外部からの給電によりファンモータ２を駆動すると、回転軸Ｘを中心としてファン４を含む回転子５が回転し、相互に向かい合うケーシング７の吸気口１０及びカバー８の吸気口１２のそれぞれに形成される吸気経路Ｆ１,Ｆ２より空気（図３参照）が供給される。これらの吸気口１０，１２は、ファンモータ２を挟んで相対する位置にあるため、吸気口１０から取り込んだ空気はカバー８に当たることなく、また吸気口１２から取り込んだ空気はケーシング７の下面部に当たることなく、それぞれ送風路９Ａ,９Ｂを通過して吸気口１０，１２と直交する方向に設けた排気口１３にスムースに送り出される。   Next, the operation of the cooling device 1 configured as described above will be described. FIG. 3 shows a cross-sectional structure in a state where the cooling device 1 of the present invention is incorporated in a thin electronic device or the like such as a notebook personal computer, and the symbol D indicates the thin electronic device. As the thin electronic device D is started up, the MPU and other electronic components (not shown) in the device D become energized, and the ambient temperature in the thin electronic device D together with these MPU and electronic components. Rises. At this time, when the fan motor 2 is driven by power supply from the outside, the rotor 5 including the fan 4 rotates about the rotation axis X, and each of the air inlet 10 of the casing 7 and the air inlet 12 of the cover 8 facing each other. Air (see FIG. 3) is supplied from the intake paths F1 and F2 formed in the above. Since these air inlets 10 and 12 are located opposite to each other with the fan motor 2 in between, the air taken in from the air inlet 10 does not hit the cover 8, and the air taken in from the air inlet 12 is the lower surface portion of the casing 7. Without being hit, the air passes smoothly through the air passages 9A and 9B to the exhaust port 13 provided in the direction orthogonal to the intake ports 10 and 12, respectively.

本実施例の冷却装置１を薄型電子機器Ｄに組み込んだ場合、各吸気口１０,１２より冷却装置１内に空気を案内供給するために、各吸気口１０,１２の上流側と薄型電子機器Ｄとの間に所定の間隔Ｇ１,Ｇ２（ギャップ）を設け、各吸気口１０,１２の上流側にそれぞれ吸気スペースＳ１,Ｓ２を備えることにより、薄型電子機器Ｄ内部の空気を各吸気口１０,１２へ案内するための各吸気経路Ｆ１,Ｆ２を確保している。   When the cooling device 1 according to the present embodiment is incorporated in the thin electronic device D, in order to guide and supply air from the intake ports 10 and 12 into the cooling device 1, the upstream side of the intake ports 10 and 12 and the thin electronic device. A predetermined gap G1, G2 (gap) is provided between the air intake D and air intake spaces S1, S2 are provided upstream of the air intake ports 10, 12, respectively. , 12 are secured for the respective intake paths F1, F2.

そして、薄型電子機器Ｄに本実施例の冷却装置１を組み込む実機条件として、薄型電子機器Ｄ内部に組み込まれた冷却装置１に空気を取り込むための各吸気口１０,１２の各吸気スペースＳ１,Ｓ２に応じて、ファン４に設けられた異なる形状を有する第１のファン部１５及び第２のファン部１６を、各吸気口１０,１２に選択的に配設している。   Then, as an actual machine condition for incorporating the cooling device 1 of the present embodiment into the thin electronic device D, each intake space S1, of each intake port 10, 12 for taking air into the cooling device 1 incorporated in the thin electronic device D, According to S2, the first fan portion 15 and the second fan portion 16 having different shapes provided in the fan 4 are selectively disposed in the intake ports 10 and 12, respectively.

図３に示すように、吸気スペースＳ１を確保するための吸気口１２の上流側と電子機器Ｄとの間隔Ｇ１が狭く、吸気時の騒音を抑えた状態で所定の風量及び風圧で空気を吸気することが困難な側（以下、間隔Ｇ１側と呼称する）の吸気口１２に、低圧送風が可能な第２のファン部１６側を配設している。また、吸気口１０の上流側と電子機器Ｄとの間隔Ｇ２が広く、吸気時の騒音を抑えた状態で所定の風量及び風圧で空気を吸気することが可能な側（以下、間隔Ｇ２側と呼称する）の吸気口１０に、高圧送風可能な第１のファン部１５側を配設している。   As shown in FIG. 3, the gap G1 between the upstream side of the air inlet 12 for securing the air intake space S1 and the electronic device D is narrow, and air is sucked in with a predetermined air volume and pressure while suppressing noise during intake. The second fan section 16 side capable of low-pressure air blowing is disposed at the intake port 12 on the side that is difficult to perform (hereinafter referred to as the gap G1 side). Further, the gap G2 between the upstream side of the intake port 10 and the electronic device D is wide, and the side that can suck in air with a predetermined air volume and pressure while suppressing noise during intake (hereinafter referred to as the gap G2 side). The first fan portion 15 side capable of high-pressure air blowing is disposed in the intake port 10 of the name.

この場合、間隔Ｇ１側の吸気口１２に低圧送風が可能なシロッコファンとしての第２のファン部１６側を配設することにより、吸気時の吸気口１２付近の乱流を抑えて騒音を小さく抑え、静圧を高めることができる。また、間隔Ｇ２側の吸気口１０に高圧送風が可能なターボファンとしての第１のファン部１５側を配設することにより、効率良く高圧空気を冷却装置１内部に送り込み、冷却装置１の風量を向上させることができる。以上のように、ファン４に設けられた異なる形状を有する第１のファン部１５及び第２のファン部１６を、本実施例の冷却装置１を薄型電子機器Ｄに組み込んだ実機条件として各吸気口１０,１２の各吸気スペースＳ１,Ｓ２の状況に応じて、ファン４の第１のファン部１５及び第２のファン部１６を、各吸気口１０,１２に高静圧・高風量で吸気可能で、且つ吸気時の騒音を低減させる最適な形状とすることにより、冷却装置１の高静圧・高風量化を図り、実機条件での冷却装置１の静圧性能及び風量性能を最適化することができる。   In this case, by arranging the second fan portion 16 side as a sirocco fan capable of low-pressure airflow at the intake port 12 on the gap G1 side, turbulence near the intake port 12 during intake is suppressed and noise is reduced. It can be suppressed and the static pressure can be increased. Further, by arranging the first fan unit 15 side as a turbo fan capable of high-pressure airflow at the intake port 10 on the gap G2 side, high-pressure air is efficiently sent into the cooling device 1, and the air volume of the cooling device 1 Can be improved. As described above, the first fan unit 15 and the second fan unit 16 having different shapes provided on the fan 4 are used as the actual machine conditions in which the cooling device 1 of this embodiment is incorporated in the thin electronic device D. The first fan portion 15 and the second fan portion 16 of the fan 4 are sucked into the intake ports 10 and 12 with a high static pressure and a high air volume according to the conditions of the intake spaces S1 and S2 of the ports 10 and 12, respectively. It is possible to optimize the static pressure performance and air flow performance of the cooling device 1 under actual machine conditions by increasing the static pressure and air flow of the cooling device 1 by adopting an optimal shape that can reduce noise during intake. can do.

また、第１のファン部１５及び第２のファン部１６を異なる形状に設けたことにより、ファン４の回転時において、回転する各ファン部１５,１６の騒音がピークに達する固有の周波数を分散化させて、各ファン部１５,１６の騒音のピーク発生時に、各ファン部１５,１６が互いに共鳴することを防ぎ、冷却装置１の静音化を図ることができる。   In addition, by providing the first fan unit 15 and the second fan unit 16 in different shapes, a unique frequency at which the noise of the rotating fan units 15 and 16 reaches a peak during the rotation of the fan 4 is dispersed. Thus, when the noise peaks of the fan portions 15 and 16 occur, the fan portions 15 and 16 can be prevented from resonating with each other, and the cooling device 1 can be made silent.

第１のファンブレード１７及び第２のファンブレード１８は、相互に等しい枚数ずつ設けられ、さらに第１のファンブレード１７及び第２のファンブレード１８それぞれの外周端２３,２４の整流板１４に対する取付位置を、ファン４の回転方向Ｒに対して半ピッチずらして配設されており、そのため第１のファンブレード１７及び第２のファンブレード１８は、回転軸Ｘ方向において整流板１４を間に挟んだ状態で、第１のファンブレード１７の外周端２３と外周端２３との間に、第２のファンブレード１８の外周端２４が配設された構成としている。   An equal number of first fan blades 17 and second fan blades 18 are provided, and the outer peripheral ends 23 and 24 of the first fan blade 17 and the second fan blade 18 are attached to the current plate 14. The positions of the first fan blade 17 and the second fan blade 18 are arranged so as to be shifted by a half pitch with respect to the rotation direction R of the fan 4. In this state, the outer peripheral end 24 of the second fan blade 18 is disposed between the outer peripheral end 23 and the outer peripheral end 23 of the first fan blade 17.

この場合、各ファン部１５,１６における各ファンブレード１７,１８の各外周端２３,２４の取付位置を半ピッチずらし、各ファン部１５,１６の形状を異なるものとしたことで、各ファン部１５,１６の回転時に騒音のピークが発生する各ファン部１５,１６固有の周波数（固有周波数）を分散化させて、各ファン部１５,１６の騒音のピーク発生時に、各ファン部１５,１６が互いに共鳴することを防ぎ、冷却装置１の更なる静音化を図ることができる。   In this case, the mounting positions of the outer peripheral ends 23 and 24 of the fan blades 17 and 18 in the fan parts 15 and 16 are shifted by a half pitch, and the shapes of the fan parts 15 and 16 are made different. The frequency (natural frequency) inherent to each of the fan units 15 and 16 where noise peaks are generated during rotation of the fan units 15 and 16 is dispersed, and when the noise peaks of the fan units 15 and 16 are generated, the fan units 15 and 16 are distributed. Can be prevented from resonating with each other, and the cooling device 1 can be further silenced.

また、吸気スペースＳ１の小さい側の吸気口１２に配設される低圧送風用の第２のファン部１６において、第２のファンブレード１８の回転軸Ｘ方向の高さＨ２を、もう一方のファン部である第１のファン部１５における第１のファンブレード１７の回転軸Ｘ方向の高さＨ１より大きく設けている。   In addition, in the second fan portion 16 for low-pressure ventilation disposed in the intake port 12 on the smaller side of the intake space S1, the height H2 of the second fan blade 18 in the rotation axis X direction is set to the other fan. The first fan blade 15, which is the first fan blade 17, is provided to be larger than the height H 1 of the first fan blade 17 in the rotation axis X direction.

この場合、電子機器Ｄとの間隔Ｇ１が狭く、吸気時の騒音を抑制するため高圧送風用のターボファンが配置できない場合においても、低圧送風用のシロッコファンである第２のファン部１６における第２のファンブレード１８の高さＨ２を大きく形成して、第２のファン部１６の風量を増加させることにより、冷却装置１の騒音の低減とともに風量の増加を図ることが可能となる。   In this case, even when the gap G1 with the electronic device D is narrow and a turbo fan for high-pressure ventilation cannot be arranged to suppress noise during intake, the second fan section 16 that is a sirocco fan for low-pressure ventilation is used. By increasing the height H2 of the second fan blade 18 and increasing the air volume of the second fan section 16, it is possible to reduce the noise of the cooling device 1 and increase the air volume.

さらに、ファン４を回転軸Ｘ方向に第１のファン部１５と第２のファン部１６との間にこれら第１のファン部１５と第２のファン部１６と２分割するように設けられた整流板１４を備えている。   Further, the fan 4 is provided between the first fan part 15 and the second fan part 16 in the direction of the rotation axis X so as to be divided into two parts, the first fan part 15 and the second fan part 16. A rectifying plate 14 is provided.

この場合、ファン４を回転させることにより各吸気口１０,１２から外郭部材７,８内に取り込まれた空気が、この整流板１４に設けた回転軸Ｘと直交する面により、外郭部材７,８内で逆流することなく整流された状態で排気口１３に向けて案内されるので、効率的に外郭部材７,８内の空気を流通させると共に、外郭部材７,８内の空気の逆流を防いで冷却装置１の騒音を低減させることを可能とする。   In this case, the air taken into the outer members 7 and 8 from the air inlets 10 and 12 by rotating the fan 4 is caused by the surface perpendicular to the rotation axis X provided on the current plate 14, and the outer members 7 and 8. Since the air is guided to the exhaust port 13 in a rectified state without flowing back in the air 8, the air in the outer shell members 7, 8 is efficiently circulated and the reverse flow of the air in the outer shell members 7, 8 is reduced. This makes it possible to reduce the noise of the cooling device 1.

以上のように本実施例では、外郭部材たるケーシング７及びカバー８と、ケーシング７及びカバー８に少なくとも１つ以上の吸気部たる吸気口１０,２と、少なくとも１つ以上の排気部たる排気口１３と、回転体たる回転子５とを備えた冷却装置１であって、回転子５は、羽部たるファン４と、ファン４を分割する分割部材たる整流板１４とを備えると共に、整流板１４に分割されたファン４の一方たる第１のファン部１５と他方たる第２のファン部１６を、相互に異なる形状としている。   As described above, in this embodiment, the casing 7 and the cover 8 that are the outer members, the intake ports 10 and 2 that are at least one intake portion in the casing 7 and the cover 8, and the exhaust ports that are at least one exhaust portion. The cooling device 1 includes a rotor 13 that is a rotating body, and the rotor 5 includes a fan 4 that is a wing portion and a current plate 14 that is a dividing member that divides the fan 4. The first fan portion 15 that is one of the fans 4 divided into 14 and the second fan portion 16 that is the other of the fans 4 have different shapes.

この場合、本実施例の冷却装置１を薄型電子機器Ｄに組み込んだ実機条件として各吸気口１０,１２の各吸気スペースＳ１,Ｓ２の状況に応じて、ファン４の第１のファン部１５及び第２のファン部１６を、各吸気口１０,１２に高静圧・高風量で吸気可能で、且つ吸気時の騒音を低減させる最適な形状とすることにより、冷却装置１の高静圧・高風量化を図り、実機条件での冷却装置１の静圧性能及び風量性能を最適化することができる。   In this case, the actual fan condition in which the cooling device 1 of this embodiment is incorporated in the thin electronic device D depends on the state of the intake spaces S1 and S2 of the intake ports 10 and 12, and the first fan unit 15 of the fan 4 and The second fan unit 16 has an optimum shape that can be sucked into each of the air inlets 10 and 12 with high static pressure and high air volume, and that reduces noise during intake, so that the high static pressure and It is possible to increase the air volume and optimize the static pressure performance and air volume performance of the cooling device 1 under actual machine conditions.

また、本実施例では、整流板１４に分割されたファン４の第１のファン部１５と第２のファン部１６に、それぞれ羽体たる第１のファンブレード１７及び第２のファンブレード１８を備え、第１のファン部１５に備えた第１のファンブレード１７及び第２のファン部１６に備えた第２のファンブレード１８の向きたる円弧凸面２１,２２とは、ファン４の回転方向Ｒに対して相互に異なる向きに設けられている。   Further, in the present embodiment, the first fan blade 17 and the second fan blade 18 that are blades are respectively attached to the first fan portion 15 and the second fan portion 16 of the fan 4 divided into the current plate 14. The first fan blade 17 provided in the first fan part 15 and the arcuate convex surfaces 21 and 22 facing the second fan blade 18 provided in the second fan part 16 are the rotational direction R of the fan 4. Are provided in different directions.

この場合、ファン４の回転時において、回転する各ファン部１５,１６の騒音がピークに達する固有の周波数を分散化させて、各ファン部１５,１６の騒音のピーク発生時に、各ファン部１５,１６が互いに共鳴することを防ぎ、冷却装置１の静音化を図ることができる。   In this case, when the fan 4 rotates, a unique frequency at which the noise of the rotating fan units 15 and 16 reaches a peak is dispersed, and when the noise peaks of the fan units 15 and 16 occur, each fan unit 15 16 can be prevented from resonating with each other, and the cooling device 1 can be silenced.

なお、本実施例ではファン４を、整流板１４を挟んで、円弧凸面２１の向きがファン４の回転方向Ｒに対して前向きに形成され、且つ出口角度β１を９０度より大きい鈍角としたターボファンたる第１のファン部１５と、円弧凸面２２の向きがファン４の回転方向Ｒに背向させて後向きに形成され、且つ出口角度β２を９０度より小さな鋭角としたシロッコファンたる第２のファン部１６とに分割したが、第１のファン部１５及び第２のファン部１６のファン形状の組み合せに関して、ターボファン及びシロッコファン以外に、出口角度が９０度、つまり垂直に形成されたラジアルファンを加え、これらターボファン、シロッコファン、及び、ラジアルファンのいずれか一方を第１のファン部をとし、ターボファン、シロッコファン、及び、ラジアルファンのいずれか他方を第２のファン部とすることにより、薄型電子機器Ｄに本実施例の冷却装置１を組み込む実機条件としての各吸気口１０,１２の各吸気スペースＳ１,Ｓ２に応じて、各吸気口に対して、ターボファン、シロッコファン、及びラジアルファンの異なる円弧凸面の向き及び出口角度を備えた遠心ファンの中から最適なファン形状を選択することにより、本実施例の冷却装置１を薄型電子機器Ｄに組み込んだ実機条件として各吸気口１０,１２の各吸気スペースＳ１,Ｓ２の状況に応じて、ファン４の第１のファン部１５及び第２のファン部１６を、各吸気口１０,１２に高静圧・高風量で吸気可能で、且つ吸気時の騒音を低減させる最適な形状とすることにより、冷却装置１の高静圧・高風量化を図り、実機条件での冷却装置１の静圧性能及び風量性能を最適化することができる。   In the present embodiment, the fan 4 is a turbo with the rectifying plate 14 sandwiched and the arcuate convex surface 21 facing forward with respect to the rotation direction R of the fan 4 and the outlet angle β1 being an obtuse angle greater than 90 degrees. The first fan portion 15 as a fan and the second sirocco fan which is formed rearward with the direction of the arc convex surface 22 facing away from the rotation direction R of the fan 4 and the exit angle β2 is an acute angle smaller than 90 degrees. The fan section 16 is divided into the first fan section 15 and the second fan section 16 except for the turbo fan and the sirocco fan. A fan is added, and one of these turbo fan, sirocco fan, and radial fan is used as the first fan part, and the turbo fan, sirocco fan, and Depending on the intake spaces S1 and S2 of the intake ports 10 and 12 as actual machine conditions for incorporating the cooling device 1 of this embodiment into the thin electronic device D by using either one of the dial fans as the second fan portion. The cooling device of the present embodiment is selected by selecting an optimal fan shape from among centrifugal fans having different arc convex directions and outlet angles of turbo fans, sirocco fans, and radial fans for each intake port. 1 is incorporated into the thin electronic device D, and the first fan unit 15 and the second fan unit 16 of the fan 4 are set in accordance with the status of the intake spaces S1 and S2 of the intake ports 10 and 12, respectively. By adopting an optimal shape that allows intake to the intake ports 10 and 12 with high static pressure and high airflow and that reduces noise during intake, the cooling device 1 is designed to have high static pressure and high airflow, and under actual machine conditions. Cooling It is possible to optimize the static pressure performance and air flow performance of the location 1.

図４は、本発明の第２実施例を示すもので、第１実施例と同一の構成については、同一符号を付すことでその説明を省略する。   FIG. 4 shows a second embodiment of the present invention, and the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

本実施例の冷却装置１において、第１のファン部１５及び第２のファン部１６は、第１のファンブレード１７及び第２のファンブレード１８に関して、第１の円弧部１９及び第２の円弧部２０の形状、ファン４の回転方向Ｒに対する第１の円弧凸面２１及び第２の円弧凸面２２の向き、第１のファンブレード１７及び第２のファンブレード１８の枚数、第１の入口角度α１及び第２の入口角度α２、第１の出口角度β１及び第２の出口角度β２をそれぞれ等しく構成した同形状を有している。   In the cooling device 1 of the present embodiment, the first fan unit 15 and the second fan unit 16 are the first arc unit 19 and the second arc unit with respect to the first fan blade 17 and the second fan blade 18. The shape of the portion 20, the orientation of the first arc convex surface 21 and the second arc convex surface 22 with respect to the rotation direction R of the fan 4, the number of the first fan blades 17 and the second fan blades 18, the first inlet angle α1 And the second inlet angle α2, the first outlet angle β1, and the second outlet angle β2 have the same shape.

本実施例の冷却装置１の特徴としては、第１のファンブレード１７及び第２のファンブレード１８の整流板１４に対する取付位置を、ファン４の回転方向Ｒに対して半ピッチずらして配設されており、回転軸Ｘ方向において整流板１４を間に挟んだ状態で、隣接するそれぞれの第１のファンブレード１７の間に、第２のファンブレード１８が配設された構成としたことを特徴としている。   As a feature of the cooling device 1 of this embodiment, the mounting positions of the first fan blade 17 and the second fan blade 18 with respect to the rectifying plate 14 are shifted by a half pitch with respect to the rotation direction R of the fan 4. The second fan blade 18 is disposed between the adjacent first fan blades 17 with the rectifying plate 14 sandwiched in the rotation axis X direction. It is said.

この場合、第１のファンブレード１７及び第２のファンブレード１８の整流板１４に対する取付位置を、ファン４の回転方向Ｒに対して半ピッチずらして配設したことにより、第１のファン部１５及び第２のファン部１６を異なる形状に形成して、ファン４の回転時において、回転する各ファン部１５,１６の騒音がピークに達する固有の周波数を分散化させて、各ファン部１５,１６の騒音のピーク発生時に、各ファン部１５,１６が互いに共鳴することを防ぎ、冷却装置１の静音化を図ることができる。   In this case, the mounting positions of the first fan blade 17 and the second fan blade 18 with respect to the rectifying plate 14 are shifted by a half pitch with respect to the rotation direction R of the fan 4. And the second fan part 16 is formed in a different shape, and when the fan 4 rotates, the unique frequency at which the noise of each of the rotating fan parts 15 and 16 reaches a peak is distributed to each fan part 15, When 16 noise peaks occur, the fan portions 15 and 16 are prevented from resonating with each other, and the cooling device 1 can be silenced.

以上のように本実施例では、整流板１４に分割されたファン４の第１のファン部１５と第２のファン部１６では、ファン４の回転軸Ｘ方向において、第１のファン部に備えた羽体たる第１のファンブレード１７と第１のファンブレード１７との間に、第２のファン部１６に備えた羽体たる第２のファンブレード１８を配置している。   As described above, in this embodiment, the first fan unit 15 and the second fan unit 16 of the fan 4 divided into the rectifying plate 14 are provided in the first fan unit in the direction of the rotation axis X of the fan 4. A second fan blade 18, which is a wing provided in the second fan unit 16, is disposed between the first fan blade 17, which is a wing, and the first fan blade 17.

この場合、ファン４の回転時において、回転する各ファン部１５,１６の騒音がピークに達する固有の周波数を分散化させて、各ファン部１５,１６の騒音のピーク発生時に、各ファン部１５,１６が互いに共鳴することを防ぎ、冷却装置１の静音化を図ることができる。   In this case, when the fan 4 rotates, a unique frequency at which the noise of the rotating fan units 15 and 16 reaches a peak is dispersed, and when the noise peaks of the fan units 15 and 16 occur, each fan unit 15 16 can be prevented from resonating with each other, and the cooling device 1 can be silenced.

図５は、本発明の第３実施例を示すもので、第１実施例や第２実施例と同一の構成については、同一符号を付すことでその説明を省略する。   FIG. 5 shows a third embodiment of the present invention, and the same components as those in the first and second embodiments are denoted by the same reference numerals and the description thereof is omitted.

本実施例の冷却装置１における第１のファン部１５及び第２のファン部１６は、第１のファンブレード１７及び第２のファンブレード１８に関して、第１の円弧部１９及び第２の円弧部２０の形状、ファン４の回転方向Ｒに対する第１の円弧凸面２１及び第２の円弧凸面２２の向き、第１の入口角度α１及び第２の入口角度α２、第１の出口角度β１及び第２の出口角度β２をそれぞれ等しく構成した同形状を有している。   The first fan part 15 and the second fan part 16 in the cooling device 1 of the present embodiment are the first arc part 19 and the second arc part with respect to the first fan blade 17 and the second fan blade 18. 20, the orientation of the first arc convex surface 21 and the second arc convex surface 22 with respect to the rotation direction R of the fan 4, the first inlet angle α1 and the second inlet angle α2, the first outlet angle β1 and the second Have the same shape in which the outlet angles β2 of each are equally configured.

本実施例の冷却装置１は、第１のファンブレード１７及び第２のファンブレード１８を異なる枚数とし、図５に示すように第２のファンブレード１８の枚数は、第１のファンブレード１７の枚数の半数としている。さらに、第１のファンブレード１７及び第２のファンブレード１８の整流板１４に対する取付位置を、ファン４の回転方向Ｒに対して半ピッチずらして配設し、回転軸Ｘ方向において整流板１４を間に挟んだ状態で、隣接するそれぞれの第１のファンブレード１７の間に、第２のファンブレード１８が配設された構成としたことを特徴としている。   The cooling device 1 of the present embodiment uses different numbers of first fan blades 17 and second fan blades 18, and the number of second fan blades 18 is the same as that of the first fan blade 17 as shown in FIG. 5. Half the number of sheets. Furthermore, the mounting positions of the first fan blade 17 and the second fan blade 18 with respect to the rectifying plate 14 are shifted by a half pitch with respect to the rotation direction R of the fan 4, and the rectifying plate 14 is arranged in the rotation axis X direction. The second fan blades 18 are arranged between the adjacent first fan blades 17 in a state of being sandwiched between them.

この場合、第１のファンブレード１７及び第２のファンブレード１８を異なる枚数としたことにより、第１のファン部１５及び第２のファン部１６を異なる形状とし、ファン４の回転時において、回転する各ファン部１５,１６の騒音がピークに達する固有の周波数を分散化させて、各ファン部１５,１６の騒音のピーク発生時に、各ファン部１５,１６が互いに共鳴することを防ぎ、冷却装置１の静音化を図ることができる。また、第１のファン部１５及び第２のファン部１６の風量を任意に調整し、本実施例の冷却装置１を薄型電子機器Ｄに組み込んだ実機条件として各吸気口１０,１２の各吸気スペースＳ１,Ｓ２の状況に応じて、ファン４の第１のファン部１５及び第２のファン部１６を、各吸気口１０,１２に最適な風量に設定することにより、冷却装置１の高静圧・高風量化を図り、実機条件での冷却装置１の静圧性能及び風量性能を最適化することができる。   In this case, the first fan blade 17 and the second fan blade 18 have different numbers, so that the first fan portion 15 and the second fan portion 16 have different shapes and rotate when the fan 4 rotates. The unique frequency at which the noise of the fan units 15 and 16 reaches the peak is dispersed to prevent the fan units 15 and 16 from resonating with each other when the noise peaks of the fan units 15 and 16 occur. It is possible to reduce the noise of the device 1. Further, the air volume of the first fan unit 15 and the second fan unit 16 is arbitrarily adjusted, and the intake air of each of the intake ports 10 and 12 is set as an actual machine condition in which the cooling device 1 of this embodiment is incorporated in the thin electronic device D. By setting the first fan part 15 and the second fan part 16 of the fan 4 to the optimum air volume for each of the air inlets 10 and 12 according to the situation of the spaces S1 and S2, the cooling device 1 can be kept quiet. It is possible to optimize the static pressure performance and air flow performance of the cooling device 1 under actual machine conditions by increasing the pressure and air flow.

さらに、第１のファン部１５と第２のファン部１６のファンブレード１７,１８の取付位置を、相互に半ピッチずらしたことにより、各ファン部１５,１６の形状を異なるものとし、各ファン部１５,１６の回転時に騒音のピークが発生する各ファン部１５,１６固有の周波数（固有周波数）を分散化させて、各ファン部１５,１６の騒音のピーク発生時に共鳴が起こることを防ぎ、冷却装置１の静音化をさらに図ることができる。   Further, the positions of the fan blades 17 and 18 of the first fan unit 15 and the second fan unit 16 are shifted by a half pitch from each other, so that the shapes of the fan units 15 and 16 are different. The frequency unique to each fan unit 15 and 16 (natural frequency) where noise peaks occur when the units 15 and 16 rotate is dispersed to prevent resonance from occurring when the noise peaks of the fan units 15 and 16 occur. Further, it is possible to further reduce the noise of the cooling device 1.

以上のように本実施例では、整流板１４に分割されたファン４の第１のファン部１５と第２のファン部１６に、それぞれ略同形状の羽体たる第１のファンブレード１７及び第２のファンブレード１８を備え、第１のファンブレード１７及び第２のファンブレード１８の数を、相互に異なるものとしている。   As described above, in this embodiment, the first fan blade 17 and the second fan portion 16 of the fan 4 divided into the current plate 14 are respectively provided with the first fan blade 17 and the first fan blade 17 having substantially the same shape. Two fan blades 18 are provided, and the numbers of the first fan blades 17 and the second fan blades 18 are different from each other.

この場合、第１のファンブレード１７及び第２のファンブレード１８を異なる枚数としたことにより、第１のファン部１５及び第２のファン部１６を異なる形状とし、ファン４の回転時において、回転する各ファン部１５,１６の騒音がピークに達する固有の周波数を分散化させて、各ファン部１５,１６の騒音のピーク発生時に、各ファン部１５,１６が互いに共鳴することを防ぎ、冷却装置１の静音化を図ることができる。また、第１のファン部１５及び第２のファン部１６の風量を任意に調整し、本実施例の冷却装置１を薄型電子機器Ｄに組み込んだ実機条件として各吸気口１０,１２の各吸気スペースＳ１,Ｓ２の状況に応じて、ファン４の第１のファン部１５及び第２のファン部１６を、各吸気口１０,１２に最適な風量に設定することにより、冷却装置１の高静圧・高風量化を図り、実機条件での冷却装置１の静圧性能及び風量性能を最適化することができる。   In this case, the first fan blade 17 and the second fan blade 18 have different numbers, so that the first fan portion 15 and the second fan portion 16 have different shapes and rotate when the fan 4 rotates. The unique frequency at which the noise of the fan units 15 and 16 reaches the peak is dispersed to prevent the fan units 15 and 16 from resonating with each other when the noise peaks of the fan units 15 and 16 occur. It is possible to reduce the noise of the device 1. Further, the air volume of the first fan unit 15 and the second fan unit 16 is arbitrarily adjusted, and the intake air of each of the intake ports 10 and 12 is set as an actual machine condition in which the cooling device 1 of this embodiment is incorporated in the thin electronic device D. By setting the first fan unit 15 and the second fan unit 16 of the fan 4 to an optimum air volume for each of the air inlets 10 and 12 according to the situation of the spaces S1 and S2, the cooling device 1 can be kept quiet. It is possible to optimize the static pressure performance and air flow performance of the cooling device 1 under actual machine conditions by increasing the pressure and air flow.

図６は、本発明の第４実施例を示すもので、第１〜第３実施例と同一の構成については、同一符号を付すことでその説明を省略する。   FIG. 6 shows a fourth embodiment of the present invention. The same components as those in the first to third embodiments are denoted by the same reference numerals and the description thereof is omitted.

本実施例の冷却装置１における第１のファン部１５及び第２のファン部１６は、第１のファンブレード１７及び第２のファンブレード１８に関して、第１の円弧部１９及び第２の円弧部２０の形状、ファン４の回転方向Ｒに対する第１の円弧凸面２１及び第２の円弧凸面２２の向きをそれぞれ等しく構成した同形状を有している。   The first fan part 15 and the second fan part 16 in the cooling device 1 of the present embodiment are the first arc part 19 and the second arc part with respect to the first fan blade 17 and the second fan blade 18. 20 and the same shape in which the directions of the first arc convex surface 21 and the second arc convex surface 22 with respect to the rotation direction R of the fan 4 are configured to be equal to each other.

本実施例の冷却装置１は、等しい曲率によってそれぞれの第１の円弧部１９及び第２の円弧部２０が形成されて同形状を有する第１のファンブレード１７及び第２のファンブレード１８を回転軸Ｘ方向に整流板１４を間に挟んでロータ３の外周に所定の間隔を空けて複数配置し、第１のファンブレード１７及び第２のファンブレード１８は、それぞれ等しい枚数配設されると共に、回転方向Ｒにおけるそれぞれの外周端２３,２４のピッチを揃える一方、第１のファンブレード１７の各内周端２５を第２のファンブレード１８の各内周端２６よりファン４の回転方向Ｒに後方へ遅れ角度γを有して配設している。このようにして、第１のファンブレード１７及び第２のファンブレード１８を、第１の入口角度α１及び第２の入口角度α２、第１の出口角度β１及び第２の出口角度β２がそれぞれ異なるように配設したことを特徴としている。   The cooling device 1 of the present embodiment rotates the first fan blade 17 and the second fan blade 18 having the same shape by forming the first arc portion 19 and the second arc portion 20 with the same curvature. A plurality of first fan blades 17 and second fan blades 18 are arranged on the outer periphery of the rotor 3 with a predetermined gap in the direction of the axis X with a predetermined interval between them. While the pitches of the outer peripheral ends 23 and 24 in the rotational direction R are aligned, the inner peripheral ends 25 of the first fan blades 17 are moved in the rotational direction R of the fan 4 from the inner peripheral ends 26 of the second fan blades 18. Are arranged with a delay angle γ backward. In this way, the first fan blade 17 and the second fan blade 18 are different from each other in the first inlet angle α1 and the second inlet angle α2, the first outlet angle β1 and the second outlet angle β2. It is characterized by being arranged as described above.

この場合、第１のファンブレード１７及び第２のファンブレード１８を、第１の入口角度α１及び第２の入口角度α２、第１の出口角度β１及び第２の出口角度β２がそれぞれ異なるように配設し、第１のファン部１５及び第２のファン部１６を異なる形状に設けたことにより、ファン４の回転時において、回転する各ファン部１５,１６の騒音がピークに達する固有の周波数を分散化させて、各ファン部１５,１６の騒音のピーク発生時に、各ファン部１５,１６が互いに共鳴することを防ぎ、ファン４の静音化を図ると共に、第１のファン部１５及び第２のファン部１６の風量及び静圧を調整して、実機条件での冷却装置１の静圧性能及び風量性能を最適化することができる。   In this case, the first fan blade 17 and the second fan blade 18 are set such that the first inlet angle α1 and the second inlet angle α2, the first outlet angle β1 and the second outlet angle β2 are different from each other. By providing the first fan unit 15 and the second fan unit 16 in different shapes, a unique frequency at which the noise of each of the rotating fan units 15 and 16 reaches a peak when the fan 4 rotates. Are distributed to prevent the fan portions 15 and 16 from resonating with each other at the time of noise peaks of the fan portions 15 and 16, thereby reducing the noise of the fan 4 and the first fan portion 15 and the first fan portion 15. The air volume and static pressure of the second fan unit 16 can be adjusted to optimize the static pressure performance and air volume performance of the cooling device 1 under actual machine conditions.

以上のように本実施例では、整流板１４に分割されたファン４の第１のファン部１５及び／又は第２のファン部１６に、それぞれ略同形状の羽体たる第１のファンブレード１７及び第２のファンブレード１８を備え、第１のファンブレード１７及び第２のファンブレード１８の取付角度たる各入口角度α１,α２及び各出口角度β１,β２を、相互に異なるものとしている。   As described above, in the present embodiment, the first fan blade 17 which is a substantially identical wing is provided on the first fan portion 15 and / or the second fan portion 16 of the fan 4 divided into the current plate 14. And the second fan blade 18, and the inlet angles α 1 and α 2 and the outlet angles β 1 and β 2 that are the mounting angles of the first fan blade 17 and the second fan blade 18 are different from each other.

この場合、ファン４の回転時において、回転する各ファン部１５,１６の騒音がピークに達する固有の周波数を分散化させて、各ファン部１５,１６の騒音のピーク発生時に、各ファン部１５,１６が互いに共鳴することを防ぎ、ファン４の静音化を図ることができるとともに、本実施例の冷却装置１を薄型電子機器Ｄに組み込んだ実機条件として各吸気口１０,１２の各吸気スペースＳ１,Ｓ２の状況に応じて、ファン４の第１のファン部１５及び第２のファン部１６を、各吸気口１０,１２に高静圧・高風量で吸気可能で、且つ吸気時の騒音を低減させる最適な形状とすることにより、冷却装置１の高静圧・高風量化を図り、実機条件での冷却装置１の静圧性能及び風量性能を最適化することができる。   In this case, when the fan 4 rotates, a unique frequency at which the noise of the rotating fan units 15 and 16 reaches a peak is dispersed, and when the noise peaks of the fan units 15 and 16 occur, each fan unit 15 , 16 can be prevented from resonating with each other, and the noise of the fan 4 can be reduced, and the intake space of each of the intake ports 10, 12 as an actual machine condition in which the cooling device 1 of this embodiment is incorporated in the thin electronic device D. Depending on the situation of S1 and S2, the first fan part 15 and the second fan part 16 of the fan 4 can be sucked into the intake ports 10 and 12 with high static pressure and high air volume, and noise during intake By optimizing the shape, it is possible to increase the static pressure and the air volume of the cooling device 1 and to optimize the static pressure performance and the air volume performance of the cooling device 1 under actual machine conditions.

図７〜図８は、本発明の第５実施例を示すもので、第１〜第４実施例と同一の構成については、同一符号を付すことでその説明を省略する。   7 to 8 show a fifth embodiment of the present invention, and the same components as those in the first to fourth embodiments are denoted by the same reference numerals and the description thereof is omitted.

本実施例の冷却装置１における第１のファン部１５及び第２のファン部１６は、第１のファンブレード１７及び第２のファンブレード１８に関して、第１の円弧部１９及び第２の円弧部２０の形状、ファン４の回転方向Ｒに対する第１の円弧凸面２１及び第２の円弧凸面２２の向き、第１のファンブレード１７及び第２のファンブレード１８の枚数、第１の入口角度α１及び第２の入口角度α２、第１の出口角度β１及び第２の出口角度β２をそれぞれ等しく構成し、さらに、回転方向Ｒに対するピッチを揃えた同形状を有している。   The first fan part 15 and the second fan part 16 in the cooling device 1 of the present embodiment are the first arc part 19 and the second arc part with respect to the first fan blade 17 and the second fan blade 18. 20, the orientation of the first arc convex surface 21 and the second arc convex surface 22 with respect to the rotation direction R of the fan 4, the number of the first fan blades 17 and the second fan blades 18, the first inlet angle α1, and The second inlet angle α2, the first outlet angle β1, and the second outlet angle β2 are configured to be equal to each other, and have the same shape with the same pitch with respect to the rotation direction R.

本実施例のファン４は、ファン４を回転軸Ｘ方向に第１のファン部１５と第２のファン部１６とに分割している整流板１４において、これら第１のファン部１５に備えられた第１のファンブレード１７と第２のファン部１６に備えられた第２のファンブレード１８のそれぞれの回転軸Ｘ方向の高さが等しくなる位置を、整流板１４の中央部分とした場合に、本実施例の整流板１４は、回転軸Ｘの中央部分より回転軸Ｘ方向に任意に偏倚させた位置に配設されたことを特徴としている。   The fan 4 according to the present embodiment is provided in the first fan unit 15 in a rectifying plate 14 that divides the fan 4 into a first fan unit 15 and a second fan unit 16 in the rotation axis X direction. Further, when the position where the heights of the second fan blades 18 provided in the first fan blade 17 and the second fan unit 16 are equal to each other in the rotation axis X direction is the central portion of the rectifying plate 14. The rectifying plate 14 of the present embodiment is characterized in that it is disposed at a position arbitrarily deviated in the direction of the rotation axis X from the central portion of the rotation axis X.

そのため、整流板１４が、前記中央部分より回転軸Ｘ方向に任意に偏倚させた位置に配設されたことにより、この整流板１４によりファン４を回転軸Ｘ方向に２分割させて設けられた第１のファン部１５と第２のファン部１６において、第１のファンブレード１７と第２のファンブレード１８の回転軸Ｘ方向の高さＨ１,Ｈ２は、それぞれ異なる高さに形成されている。   Therefore, the fan 4 is divided into two in the direction of the rotation axis X by the current plate 14 by arranging the current plate 14 at a position arbitrarily deviated in the direction of the rotation axis X from the central portion. In the first fan unit 15 and the second fan unit 16, the heights H1 and H2 in the rotation axis X direction of the first fan blade 17 and the second fan blade 18 are formed to be different from each other. .

この場合、整流板１４を回転軸Ｘの中央部分より回転軸Ｘ方向に任意に偏倚させた位置に配設したことにより、第１のファンブレード１７及び第２のファンブレード１８の回転軸Ｘ方向の高さＨ１,Ｈ２をそれぞれ異なる任意の高さに形成することを可能とし、各ファン部１５,１６を任意の風量に設定することを可能とする。こうすることで、冷却装置１の高静圧・高風量化を図り、実機条件での冷却装置１の静圧性能及び風量性能を最適化することができる。   In this case, by arranging the rectifying plate 14 at a position arbitrarily displaced in the direction of the rotation axis X from the central portion of the rotation axis X, the rotation axis X direction of the first fan blade 17 and the second fan blade 18 is arranged. The heights H1 and H2 can be formed at different arbitrary heights, and the fan portions 15 and 16 can be set at an arbitrary air volume. By doing so, it is possible to increase the static pressure and the air volume of the cooling device 1 and to optimize the static pressure performance and the air volume performance of the cooling device 1 under actual machine conditions.

以上のように本実施例では、整流板１４は、ファン４の回転軸Ｘ方向において、第１のファン部１５及び第２のファン部１６のどちらかに偏って設けられており、ファン４の回転時において、回転する各ファン部１５,１６の騒音がピークに達する固有の周波数を分散化させて、各ファン部１５,１６の騒音のピーク発生時に、各ファン部１５,１６が互いに共鳴することを防ぎ、ファン４の静音化を図ることができるとともに、この整流板１４の回転軸Ｘ方向の位置を任意に設定することによって、第１のファン部１５と第２のファン部１６の前記回転軸Ｘ方向の比率を任意に変えて、第１のファン部１５及び第２のファン部１６の回転軸Ｘ方向の高さＨ１,Ｈ２を任意に設定することで、第１のファン部１５及び第２のファン部１６の風量を任意に設定することが可能となる。ここで、本実施例の冷却装置１を薄型電子機器Ｄに組み込んだ実機条件として各吸気口１０,１２の各吸気スペースＳ１,Ｓ２の状況に応じて、ファン４の第１のファン部１５及び第２のファン部１６を、各吸気口１０,１２に最適な風量に設定することにより、冷却装置１の高静圧・高風量化を図り、実機条件での冷却装置１の静圧性能及び風量性能を最適化することができる。   As described above, in this embodiment, the rectifying plate 14 is provided to be biased to either the first fan portion 15 or the second fan portion 16 in the direction of the rotation axis X of the fan 4. During rotation, the unique frequency at which the noise of the rotating fan units 15 and 16 reaches a peak is dispersed, and the fan units 15 and 16 resonate with each other when the noise peaks of the fan units 15 and 16 occur. This makes it possible to reduce the noise of the fan 4 and to arbitrarily set the position of the rectifying plate 14 in the direction of the rotation axis X, so that the first fan unit 15 and the second fan unit 16 By arbitrarily changing the ratio of the rotation axis X direction and arbitrarily setting the heights H1 and H2 of the first fan unit 15 and the second fan unit 16 in the rotation axis X direction, the first fan unit 15 And the air flow of the second fan section 16 Can be set as desired. Here, as the actual machine conditions in which the cooling device 1 of the present embodiment is incorporated in the thin electronic device D, the first fan unit 15 of the fan 4 and the fan 4 according to the state of the intake spaces S1 and S2 of the intake ports 10 and 12 and By setting the second fan unit 16 to an optimum air volume for each of the air inlets 10 and 12, the static pressure of the cooling apparatus 1 under actual machine conditions can be increased. Air flow performance can be optimized.

なお、本発明は上記実施例に限定されるものではなく、本発明の要旨の範囲内において種々の変形実施が可能である。例えば、上記各実施例における特徴部分をそれぞれ組み合わせて構成してもよい。また、上記第１〜第５実施例において、ファン４の回転方向Ｒを図１〜８に示すように全て時計回りとして説明を行ったが、このファン４の回転方向Ｒに関して、図１〜８において反時計回りであっても構わないものとする。そのため、第１のファン部１５及び第２のファン部１６はいずれも、円弧凸面２１,２２を回転方向Ｒに向けたターボフィン、または円弧凸面２１,２２を回転方向Ｒと背向させて後向きに設けたシロッコファンであっても構わないし、さらに出口角度β１,β２を９０度、つまり直角としたラジアルファンとしても構わないものとする。このラジアルファンに関しては、各ファンブレード１７,１８に円弧部を備えた曲線状のものや、直線状のものであっても構わないものとする。さらに、各ファンブレード１７,１８の高さＨ１,Ｈ２や枚数、形状についても適宜変更可能である。また、円環板１４の位置についても適宜変更可能である。さらに、吸気口及び排気口の数についても適宜変更可能である。   In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, you may comprise combining the characteristic part in each said Example, respectively. Moreover, in the said 1st-5th Example, although the rotation direction R of the fan 4 was demonstrated as clockwise as shown in FIGS. 1-8, about the rotation direction R of this fan 4, FIGS. In FIG. 4, it may be counterclockwise. Therefore, the first fan part 15 and the second fan part 16 are both turbo fins with the arcuate convex surfaces 21 and 22 facing the rotation direction R, or the arcuate convex surfaces 21 and 22 facing away from the rotation direction R and facing backward. It is also possible to use a sirocco fan provided in the above, or a radial fan whose exit angles β1 and β2 are 90 degrees, that is, a right angle. With respect to this radial fan, the fan blades 17 and 18 may be curved or arcuate with arc portions. Further, the heights H1, H2, the number and shape of the fan blades 17 and 18 can be appropriately changed. Further, the position of the annular plate 14 can be changed as appropriate. Furthermore, the number of intake ports and exhaust ports can be changed as appropriate.

本発明の第１実施例を示す冷却装置の断面図である。It is sectional drawing of the cooling device which shows 1st Example of this invention. 同上、冷却装置に備えた回転子の斜視図である。It is a perspective view of the rotor provided in the cooling device same as the above. 同上、本実施例の冷却装置を薄型電子機器に組み込んだ状態を示した断面図である。It is sectional drawing which showed the state which incorporated the cooling device of the present Example in the thin electronic device same as the above. 本発明の第２実施例を示す冷却装置に備えた回転子の斜視図である。It is a perspective view of the rotor with which the cooling device which shows 2nd Example of this invention was equipped. 本発明の第３実施例を示す冷却装置に備えた回転子の斜視図である。It is a perspective view of the rotor with which the cooling device which shows 3rd Example of this invention was equipped. 本発明の第４実施例を示す冷却装置に備えた回転子の平面図である。It is a top view of the rotor with which the cooling device which shows 4th Example of this invention was equipped. 本発明の第５実施例を示す冷却装置に備えた回転子の斜視図である。It is a perspective view of the rotor with which the cooling device which shows 5th Example of this invention was equipped. 同上、本実施例の冷却装置を薄型電子機器に組み込んだ状態を示した断面図である。It is sectional drawing which showed the state which incorporated the cooling device of the present Example in the thin electronic device same as the above. 従来の冷却装置に備えた回転体の斜視図である。It is a perspective view of the rotary body with which the conventional cooling device was equipped.

符号の説明Explanation of symbols

１ 冷却装置
４ ファン（羽部）
５ 回転子（回転体）
７ ケーシング（外郭部材）
８ カバー（外郭部材）
１０,１２ 吸気口（吸気部）
１３ 排気口（排気部）
１４ 整流板（分割部材）
１５ 第１のファン部（羽部の一方）
１６ 第２のファン部（羽部の他方）
１７ 第１のファンブレード（羽体）
１８ 第２のファンブレード（羽体）
α１,α２ 入口角度（取付角度）
β１,β２ 出口角度（取付角度） 1 Cooling device 4 Fan (wings)
5 Rotor (Rotating body)
7 Casing (outer member)
8 Cover (outer member)
10,12 Air intake (intake part)
13 Exhaust port (exhaust part)
14 Current plate (divided member)
15 First fan part (one of the wings)
16 Second fan part (the other of the wings)
17 First fan blade (blade)
18 Second fan blade (blade)
α1, α2 Entrance angle (mounting angle)
β1, β2 outlet angle (mounting angle)

Claims (6)

外郭部材と、前記外郭部材に少なくとも１つ以上の吸気部と、少なくとも１つ以上の排気部と、回転体とを備えた冷却装置であって、
前記回転体は、羽部と、前記羽部を分割する分割部材とを備えると共に、
前記分割部材に分割された前記羽部の一方と他方を、相互に異なる形状としたことを特徴とする冷却装置。 A cooling device comprising: an outer member; at least one or more intake portions; at least one exhaust portion; and a rotating body on the outer member;
The rotating body includes a wing portion and a dividing member that divides the wing portion,
One of the said wing | wing parts divided | segmented into the said division member and the other were made into the mutually different shape, The cooling device characterized by the above-mentioned. 前記羽部の一方と他方では、前記羽部の一方側に備えた羽体と羽体との間に、前記羽部の他方側に備えた羽体を配置したことを特徴とする請求項１記載の冷却装置。 The wing provided on the other side of the wing is disposed between the wing provided on one side of the wing and the wing on one side of the wing. The cooling device as described. 前記羽部の一方と他方に、略同形状の羽体を備え、
前記羽部の一方側に備えた前記羽体及び前記羽部の他方側に備えた前記羽体の数を、相互に異なるものとしたことを特徴とする請求項１又は２記載の冷却装置。 One and the other of the wings are provided with wings of substantially the same shape,
The cooling device according to claim 1 or 2, wherein the number of the wings provided on one side of the wings and the number of the wings provided on the other side of the wings are different from each other. 前記羽部の一方又は他方に、略同形状の羽体を備え、
前記羽部に備えた前記羽体の角度を、相互に異なるものとしたことを特徴とする請求項１記載の冷却装置。 One or the other of the wings includes a wing having substantially the same shape,
The cooling device according to claim 1, wherein angles of the wings provided in the wings are different from each other. 前記羽部の一方と他方に、それぞれ羽体を備え、
前記羽部の一方側に備えた前記羽体及び前記羽部の他方側に備えた前記羽体の向きとは、相互に異なる向きに設けられたことを特徴とする請求項１〜３のいずれか１項に記載の冷却装置。 One and the other of the wings are each provided with wings,
The direction of the said wing body provided in the one side of the said wing | blade part and the said wing body provided in the other side of the said wing | blade part was provided in the mutually different direction, The any one of Claims 1-3 characterized by the above-mentioned. The cooling device according to claim 1. 前記分割部材は、前記羽部の一方又は他方のどちらかに偏って設けられたことを特徴とする請求項１〜５のいずれか１項に記載の冷却装置。 The cooling device according to claim 1, wherein the dividing member is provided so as to be biased to one or the other of the wings.
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WO2014045538A1 (en) * 2012-09-18 2014-03-27 株式会社デンソー Vehicle seat air-conditioning device
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US9452699B2 (en) 2012-09-18 2016-09-27 Denso Corporation Vehicle seat air-conditioning device
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JP2015135118A (en) * 2015-03-16 2015-07-27 東芝ホームテクノ株式会社 blower
CN108286531A (en) * 2017-01-09 2018-07-17 联想(北京)有限公司 Blade structure, radiator and electronic equipment
CN112930444A (en) * 2018-10-30 2021-06-08 三菱电机株式会社 Turbofan, blower, air conditioner, and refrigeration cycle device
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