JP2006263249A - Hair-drier - Google Patents

Hair-drier Download PDF

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Publication number
JP2006263249A
JP2006263249A JP2005087419A JP2005087419A JP2006263249A JP 2006263249 A JP2006263249 A JP 2006263249A JP 2005087419 A JP2005087419 A JP 2005087419A JP 2005087419 A JP2005087419 A JP 2005087419A JP 2006263249 A JP2006263249 A JP 2006263249A
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Prior art keywords
fan
wind tunnel
outer diameter
hair dryer
value
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JP2005087419A
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Japanese (ja)
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Kenji Kamata
憲二 鎌田
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2005087419A priority Critical patent/JP2006263249A/en
Priority to RU2006108170/12A priority patent/RU2320248C2/en
Priority to US11/377,277 priority patent/US20060213074A1/en
Priority to CNB2006100676486A priority patent/CN100438799C/en
Priority to DE602006002411T priority patent/DE602006002411D1/en
Priority to AT06006042T priority patent/ATE406124T1/en
Priority to KR1020060026459A priority patent/KR100693085B1/en
Priority to EP06006042A priority patent/EP1704792B1/en
Publication of JP2006263249A publication Critical patent/JP2006263249A/en
Priority to HK06113944.4A priority patent/HK1093141A1/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands

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  • Cleaning And Drying Hair (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cosmetics (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hair-drier, for example, for professional use, in which pressure loss due to wind tunnel is lessened, rotation frequency is not raised, the outer diameter of a fan is not enlarged and constant volume of strong air is generated. <P>SOLUTION: In a hair-drier which is equipped with a housing 2 which has an approximately cylinder-like wind tunnel section 3, a fan 6 mounted in a wind tunnel section 3, a motor 7 for rotating the fan 6 and a heater 5, the fan 6 is a centrifugal type fan and has a rotating shaft, a disk which is approximately vertical to the rotating shaft and a plurality of vanes which are approximately vertical to the disk and curved in the predetermined orientations from the radiating directions around a center of the rotating shaft, then, the inner diameter of an air outlet 9 of the wind tunnel section 3 of the housing 2 is set to D2 and value of D1/D2 is set to 1.0 or more and 1.45 or less. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、ヘアドライヤーのファン及び風洞の構成に関する。   The present invention relates to a fan and a wind tunnel configuration of a hair dryer.

プロユースのヘアドライヤーなど、大容量のヘアドライヤーにおいては、風の出口を絞って、強い風を発生させることが望まれている。ところが、風の出口を絞ると、流路における圧力損失が大きくなるため、ファンの出力を高くしなければならない。また、このような圧力損失の大きい条件下では、例えば特許文献１に記載されているように、一般的に遠心型のファンが使用されることが多い。   In a large-capacity hair dryer such as a professional hair dryer, it is desired to generate a strong wind by narrowing the outlet of the wind. However, when the wind outlet is throttled, the pressure loss in the flow path increases, so the fan output must be increased. Further, under such a large pressure loss condition, for example, as described in Patent Document 1, a centrifugal fan is generally used in many cases.

上記のように風の出口を絞ると、流路が狭くなり、圧力損失が大きくなるので、必要な風量を確保するためには、モータの回転数を高くしたり、ファンの外径を大きくしたりする必要がある。しかしながら、モータの回転数を高くしたり、ファンの外径を大きくしたりすると、モータに掛かる負担が大きくなるため、一定の限界がある。従って、モータの負担を大きくすることなく、一定の風量を確保するために、圧力損失の少ない風洞を設計することが望まれている。
特開２００１−２０４５３７号公報 If the air outlet is throttled as described above, the flow path becomes narrow and the pressure loss increases, so in order to secure the necessary air volume, the motor rotation speed is increased or the fan outer diameter is increased. It is necessary to do. However, when the motor rotation speed is increased or the outer diameter of the fan is increased, there is a certain limit because the load on the motor increases. Therefore, it is desired to design a wind tunnel with less pressure loss in order to ensure a constant air volume without increasing the load on the motor.
JP 2001-204537 A

本発明は、上記従来例の問題を解決するためになされたものであり、風洞による圧力損失を少なくして、モータの回転数を高くすることなく、またファンの外径を大きくすることなく、一定の風量の強い風を発生させうるヘアドライヤーを提供することを目的としている。   The present invention has been made to solve the above-described problems of the conventional example, reducing pressure loss due to the wind tunnel, without increasing the number of rotations of the motor, and without increasing the outer diameter of the fan. It aims at providing the hair dryer which can generate | occur | produce the strong wind of a fixed air volume.

上記目的を達成するために請求項１の発明は、略円筒状の風洞部を有するハウジングと、前記風洞部に設けられたファン、ファンを回転させるためのモータ及びヒータを備えたヘアドライヤーにおいて、前記ファンは、回転軸と、その回転軸に略直交する円板と、その円板に対して略垂直で、かつ前記回転軸を中心とする放射方向に対して所定方向に湾曲した複数の羽根を有する遠心型のファンであり、前記ファンの外径をＤ１、前記ハウジングの風洞部の風の吹き出し口の内径をＤ２として、Ｄ１／Ｄ２の値が１．０以上１．４５以下の範囲にあることを特徴とする。   In order to achieve the above object, the invention of claim 1 is a hair dryer comprising a housing having a substantially cylindrical wind tunnel portion, a fan provided in the wind tunnel portion, a motor for rotating the fan, and a heater. The fan includes a rotation shaft, a disk substantially orthogonal to the rotation axis, and a plurality of blades that are substantially perpendicular to the disk and curved in a predetermined direction with respect to a radial direction about the rotation axis The value of D1 / D2 is in the range of 1.0 or more and 1.45 or less, where D1 is the outer diameter of the fan and D2 is the inner diameter of the air outlet of the wind tunnel of the housing. It is characterized by being.

また、請求項２の発明は、上記請求項１のヘアドライヤーにおいて、前記ファンの周りの前記風洞部の内径をＤ３として、Ｄ１／Ｄ３の値が０．６以上０．７５以下の範囲にあることを特徴とする。   The invention of claim 2 is the hair dryer of claim 1, wherein the inner diameter of the wind tunnel portion around the fan is D3, and the value of D1 / D3 is in the range of 0.6 to 0.75. It is characterized by that.

ファンの外径Ｄ１を大きくする（Ｄ１／Ｄ２を大きくする）と、ファンの１回の回転で吸い込まれる空気量が増加し、風量が増加する。しかしながら、ハウジングの風洞部におけるファンの近傍から風の吹き出し口に至る流路の絞り率が大きくなり、風洞部による圧力損失が増加する。そのため、ファンの外径Ｄ１をあまり大きくしすぎても効率的でなく、Ｄ１／Ｄ２の値は１．４５以下であることが好ましい。また、ファンの外径Ｄ１を風の吹き出し口の内径Ｄ２よりも小さくすると（すなわち、Ｄ１／Ｄ２＜１．０）、風洞部における流路拡大による損失が生じる。従って、Ｄ１／Ｄ２の値は１．０以上であることが好ましい。すなわち、請求項１のように、Ｄ１／Ｄ２の値が１．０以上１．４５以下の範囲になるようにファンの外径Ｄ１及びハウジングの風洞部の風の吹き出し口の内径Ｄ２を設定すれば、従来と同じファン及びモータを用いた場合であっても、ヘアドライヤーの圧力損失を小さくして、風量を多くすることができる。   When the outer diameter D1 of the fan is increased (D1 / D2 is increased), the amount of air sucked by one rotation of the fan increases and the air volume increases. However, the throttle rate of the flow path from the vicinity of the fan in the wind tunnel portion of the housing to the wind outlet increases, and the pressure loss due to the wind tunnel portion increases. Therefore, it is not efficient to make the outer diameter D1 of the fan too large, and the value of D1 / D2 is preferably 1.45 or less. Further, if the outer diameter D1 of the fan is made smaller than the inner diameter D2 of the wind outlet (that is, D1 / D2 <1.0), a loss due to the flow path expansion in the wind tunnel portion occurs. Therefore, the value of D1 / D2 is preferably 1.0 or more. That is, as in claim 1, the outer diameter D1 of the fan and the inner diameter D2 of the wind outlet of the wind tunnel of the housing are set so that the value of D1 / D2 is in the range of 1.0 to 1.45. For example, even when the same fan and motor as in the past are used, the pressure loss of the hair dryer can be reduced and the air volume can be increased.

次に、ファンの外径Ｄ１とファンの周りの風洞部の内径Ｄ３の隙間が大きくなる、すなわちＤ１／Ｄ３が小さくなると、ファンの回転軸方向の空気の流れが発生しにくくなる。そのため、Ｄ１／Ｄ３の値が０．６よりも小さくなると、最大ファン効率の値が急激に低下する。また、ファンの外径Ｄ１とファン６の周りの風洞部の内径Ｄ３の隙間が小さくなる、すなわちＤ１／Ｄ３が大きくなると、ファンの遠心力を十分に利用することができなくなり、ファン効率が低下する。そのため、Ｄ１／Ｄ３の値が０．７５よりも大きくなると、最大ファン効率の値が急激に低下する。従って、請求項２のように、Ｄ１／Ｄ３の値が０．６以上０．７５以下の範囲となるようにファンの外径Ｄ１及びハウジングのファンの周りの風洞部の内径Ｄ３を設定すれば、従来と同じファン及びモータを用いた場合であっても、ファン効率（すなわちファン出力／モータ出力）を最大化することができる。   Next, when the gap between the outer diameter D1 of the fan and the inner diameter D3 of the wind tunnel around the fan is increased, that is, when D1 / D3 is decreased, the flow of air in the fan rotation axis direction is less likely to occur. For this reason, when the value of D1 / D3 is smaller than 0.6, the value of the maximum fan efficiency rapidly decreases. Further, if the gap between the fan outer diameter D1 and the inner diameter D3 of the wind tunnel around the fan 6 is reduced, that is, if D1 / D3 is increased, the centrifugal force of the fan cannot be fully utilized, and the fan efficiency is reduced. To do. For this reason, when the value of D1 / D3 becomes larger than 0.75, the value of the maximum fan efficiency rapidly decreases. Therefore, as in claim 2, if the outer diameter D1 of the fan and the inner diameter D3 of the wind tunnel around the fan of the housing are set so that the value of D1 / D3 is in the range of 0.6 to 0.75. Even when the same fan and motor are used as in the prior art, fan efficiency (ie, fan output / motor output) can be maximized.

本発明の一実施形態に係るヘアドライヤーについて、図面を参照しつつ説明する。本実施形態に係るヘアドライヤー１の構成を図１に示す。図１に示すように、本実施形態に係るヘアドライヤー１のハウジング２は、略円筒状の風洞部３と、風洞部３に対して略直交する方向に設けられたグリップ部４を有している。さらに、ヘアドライヤー１は、風洞部３の内部に設けられたヒータ５、ファン６及びファン６を回転駆動するためのモータ７、風洞部３の風の吸い込み口８及び風の吐き出し口９に装着された異物侵入防止のための格子１０及び１１、グリップ部４に設けられた操作スイッチ１２、風の吐き出し口９に着脱可能に装着されたノズル１３などを備えている。なお、ファン６は風の吸い込み口８の近傍に配置されている。   A hair dryer according to an embodiment of the present invention will be described with reference to the drawings. The structure of the hair dryer 1 which concerns on this embodiment is shown in FIG. As shown in FIG. 1, the housing 2 of the hair dryer 1 according to the present embodiment has a substantially cylindrical wind tunnel portion 3 and a grip portion 4 provided in a direction substantially orthogonal to the wind tunnel portion 3. Yes. Further, the hair dryer 1 is mounted on a heater 5 provided inside the wind tunnel 3, a fan 6, a motor 7 for rotationally driving the fan 6, a wind inlet 8 and a wind outlet 9 of the wind tunnel 3. Grids 10 and 11 for preventing entry of foreign matter, an operation switch 12 provided in the grip portion 4, a nozzle 13 removably mounted on the wind outlet 9, and the like. The fan 6 is disposed in the vicinity of the wind inlet 8.

正面から見たファン６の形状を図２に示す。ファン６は、一般的に圧力損失が大きい場合に使用される遠心型のファンであり、その回転軸６１に対して略直交する（図１に示すように、回転軸６１から周辺部に向けて風の流路の下流側にゆるく傾斜していてもよい）円板６２と、円板６２に対して略垂直で、かつ回転軸６１を中心とする放射方向に対して所定方向に湾曲した複数の羽根６３を有している。隣接する２つの羽根６３に着目すると、回転軸６１から円板６２の外周部に進むにつれて、２つの羽根６３の間隔が広くなるように形成されている。   The shape of the fan 6 seen from the front is shown in FIG. The fan 6 is a centrifugal fan that is generally used when the pressure loss is large, and is substantially orthogonal to the rotation shaft 61 (from the rotation shaft 61 toward the periphery as shown in FIG. 1). A plurality of discs 62 that are gently inclined to the downstream side of the wind flow path) and curved in a predetermined direction with respect to a radial direction centered on the rotation shaft 61 and substantially perpendicular to the disc 62 The blades 63 are provided. When attention is paid to the two adjacent blades 63, the distance between the two blades 63 is increased as the rotation proceeds from the rotating shaft 61 to the outer periphery of the disc 62.

ファン６の外径Ｄ１とハウジング２の風の吹き出し口９の内径Ｄ２の比（Ｄ１／Ｄ２）とヘアドライヤーの圧力損失の関係を図３に示す。図３中、横軸はファン６の外径Ｄ１と風の吹き出し口９の内径Ｄ２の比（Ｄ１／Ｄ２）を表し、縦軸はヘアドライヤーの圧力損失を表す。なお、風の吹き出し口９の内径Ｄ２は、ノズル１３を装着しない状態での風の吹き出し口９の内径を意味し、かつハウジング２の内径であって、ヒータ５などの内蔵物の内径を意味するものではない。また、ファン６の外径とは、円板６２の外径ではなく、羽根６３の最外部の径を意味する。   FIG. 3 shows the relationship between the ratio (D1 / D2) of the outer diameter D1 of the fan 6 to the inner diameter D2 of the wind outlet 9 of the housing 2 and the pressure loss of the hair dryer. In FIG. 3, the horizontal axis represents the ratio (D1 / D2) of the outer diameter D1 of the fan 6 and the inner diameter D2 of the wind outlet 9, and the vertical axis represents the pressure loss of the hair dryer. The inner diameter D2 of the wind outlet 9 means the inner diameter of the wind outlet 9 when the nozzle 13 is not attached, and the inner diameter of the housing 2 and the inner diameter of a built-in object such as the heater 5. Not what you want. Further, the outer diameter of the fan 6 means not the outer diameter of the disc 62 but the outermost diameter of the blade 63.

図３からわかるように、Ｄ１／Ｄ２の値が１．０と１．４５の間でヘアドライヤーの圧力損失の値が極小値をとり、１．０よりも小さくなるか、あるいは１．４５よりも大きくなると、ヘアドライヤーの圧力損失が増加する傾向にある。モータ７の回転数が一定であると仮定して、ファン６の外径Ｄ１を大きくする（Ｄ１／Ｄ２を大きくする）と、ファン６の１回の回転で吸い込まれる空気量が増加し、風量が増加する。しかしながら、ハウジング２の風洞部３におけるファン６の近傍から風の吹き出し口９に至る流路の絞り率が大きくなり、風洞部３による圧力損失が増加する。そのため、ファン６の外径Ｄ１をあまり大きくしすぎても効率的でないことがわかる。また、ファン６の外径Ｄ１を風の吹き出し口９の内径Ｄ２よりも小さくすると（すなわち、Ｄ１／Ｄ２＜１．０）、風洞部３における流路拡大による損失が生じる。従って、Ｄ１／Ｄ２の値が１．０以上１．４５以下の範囲になるようにファン６の外径Ｄ１及びハウジング２の風洞部３の風の吹き出し口９の内径Ｄ２を設定すれば、同じファン６及びモータ７を用いた場合、すなわち同じファン性能でも、ヘアドライヤーの圧力損失を小さくして、風量を多くすることができる。   As can be seen from FIG. 3, when the value of D1 / D2 is between 1.0 and 1.45, the pressure loss value of the hair dryer takes a minimum value, which is smaller than 1.0 or less than 1.45. As the value increases, the pressure loss of the hair dryer tends to increase. Assuming that the rotational speed of the motor 7 is constant, if the outer diameter D1 of the fan 6 is increased (D1 / D2 is increased), the amount of air sucked by one rotation of the fan 6 increases, and the air volume Will increase. However, the throttle rate of the flow path from the vicinity of the fan 6 to the wind outlet 9 in the wind tunnel portion 3 of the housing 2 increases, and the pressure loss due to the wind tunnel portion 3 increases. Therefore, it can be seen that it is not efficient to make the outer diameter D1 of the fan 6 too large. Further, when the outer diameter D1 of the fan 6 is made smaller than the inner diameter D2 of the wind blowing port 9 (that is, D1 / D2 <1.0), a loss due to expansion of the flow path in the wind tunnel portion 3 occurs. Therefore, if the outer diameter D1 of the fan 6 and the inner diameter D2 of the wind outlet 9 of the wind tunnel portion 3 of the housing 2 are set so that the value of D1 / D2 is in the range of 1.0 to 1.45, the same. When the fan 6 and the motor 7 are used, that is, even with the same fan performance, the pressure loss of the hair dryer can be reduced and the air volume can be increased.

ここで、ヘアドライヤーの圧力損失の定義を図４に示す。図４中、横軸は風量を表し、縦軸は圧力を表す。ファンＰＱ特性は、ファンの性能を表し、風量が多くなるほど圧力が低下することを示している。一方、圧力損失曲線は、風洞及びその内蔵物による圧力損失を表しており、一般的に風量が多くなるほど圧力損失も増加する。このファンＰＱ特性と圧力損失曲線の交点Ｐが、ここで言うヘアドライヤーの圧力損失となる。風洞及び内蔵物による圧力損失が低減されれば、圧力損失曲線の傾きが緩くなり、ファンＰＱ特性と圧力損失曲線の交点Ｐが図中右側に移動し、交点Ｐの圧力の値が低下し、風量が増加する。   Here, the definition of the pressure loss of a hair dryer is shown in FIG. In FIG. 4, the horizontal axis represents the air volume, and the vertical axis represents the pressure. The fan PQ characteristic represents the performance of the fan, and indicates that the pressure decreases as the air volume increases. On the other hand, the pressure loss curve represents the pressure loss due to the wind tunnel and its built-in components, and generally the pressure loss increases as the air volume increases. The intersection P between the fan PQ characteristic and the pressure loss curve is the pressure loss of the hair dryer here. If the pressure loss due to the wind tunnel and the built-in components is reduced, the slope of the pressure loss curve becomes gentle, the intersection P of the fan PQ characteristic and the pressure loss curve moves to the right side in the figure, and the pressure value at the intersection P decreases. The air volume increases.

次に、ファン６の外径Ｄ１とファン６の周りの風洞部３の内径Ｄ３の比（Ｄ１／Ｄ３）と最大ファン効率の関係を図５に示す。図５からわかるように、Ｄ１／Ｄ３の値が０．６の付近で最大ファン効率の値が極大値をとり、Ｄ１／Ｄ３の値が０．６よりも小さくなるか、あるいは０．７５よりも大きくなると、最大ファン効率の値が急激に低下することがわかる。この原因は、第１に、ファン６の外径Ｄ１とファン６の周りの風洞部３の内径Ｄ３の隙間が大きくなる、すなわちＤ１／Ｄ３が小さくなると、ファン６の回転軸６１方向の空気の流れが発生しにくくなること考えられる。第２に、ファン６の外径Ｄ１とファン６の周りの風洞部３の内径Ｄ３の隙間が小さくなる、すなわちＤ１／Ｄ３が大きくなると、ファン６の遠心力を十分に利用することができなくなり、ファン効率が低下すると考えられる。従って、Ｄ１／Ｄ３の値が０．６以上０．７５以下の範囲となるようにファン６の外径Ｄ１及びハウジング２のファン６の周りの風洞部３の内径Ｄ３を設定すれば、同じファン６及びモータ７を用いた場合であっても、ファン効率（すなわちファン出力／モータ出力）を最大化することができる。   Next, FIG. 5 shows the relationship between the ratio of the outer diameter D1 of the fan 6 and the inner diameter D3 of the wind tunnel 3 around the fan 6 (D1 / D3) and the maximum fan efficiency. As can be seen from FIG. 5, when the value of D1 / D3 is around 0.6, the value of the maximum fan efficiency has a maximum value, and the value of D1 / D3 is smaller than 0.6 or from 0.75. As the value increases, the maximum fan efficiency value decreases rapidly. First, this is because the gap between the outer diameter D1 of the fan 6 and the inner diameter D3 of the wind tunnel portion 3 around the fan 6 increases, that is, when D1 / D3 decreases, the air in the direction of the rotation axis 61 of the fan 6 decreases. It is considered that the flow is less likely to occur. Secondly, if the gap between the outer diameter D1 of the fan 6 and the inner diameter D3 of the wind tunnel 3 around the fan 6 is reduced, that is, if D1 / D3 is increased, the centrifugal force of the fan 6 cannot be fully utilized. The fan efficiency is considered to decrease. Accordingly, if the outer diameter D1 of the fan 6 and the inner diameter D3 of the wind tunnel portion 3 around the fan 6 of the housing 2 are set so that the value of D1 / D3 is in the range of 0.6 to 0.75, the same fan Even when the motor 6 and the motor 7 are used, the fan efficiency (that is, fan output / motor output) can be maximized.

以上説明したように、ファン６の外径Ｄ１とハウジング２の風洞部３の風の吹き出し口９の内径Ｄ２の比Ｄ１／Ｄ２の値を１．０以上１．４５以下の範囲に設定することにより、従来のものと同じファン６及びモータ７を用いても、すなわち同じファン性能でも、ヘアドライヤーの圧力損失を小さくして、風量を多くすることができる。また、ファン６の外径Ｄ１とファン６の周りの風洞部３の内径Ｄ３の比Ｄ１／Ｄ３の値を０．６以上０．７５以下の範囲に設定することにより、従来のものと同じファン６及びモータ７を用いても、ファン効率（すなわちファン出力／モータ出力）を最大化することができる。その結果、風洞による圧力損失を少なくして、モータの回転数を高くすることなく、またファンの外径を大きくすることなく、一定の風量の強い風を発生させうるヘアドライヤーを得ることができる。   As described above, the ratio D1 / D2 between the outer diameter D1 of the fan 6 and the inner diameter D2 of the air outlet 9 of the wind tunnel 3 of the housing 2 is set in the range of 1.0 to 1.45. Therefore, even if the same fan 6 and motor 7 as those of the conventional one are used, that is, even with the same fan performance, the pressure loss of the hair dryer can be reduced and the air volume can be increased. Further, by setting the ratio D1 / D3 of the outer diameter D1 of the fan 6 and the inner diameter D3 of the wind tunnel portion 3 around the fan 6 to a range of 0.6 or more and 0.75 or less, the same fan as the conventional fan 6 and the motor 7 can also be used to maximize fan efficiency (ie fan output / motor output). As a result, it is possible to obtain a hair dryer capable of generating a constant amount of wind without reducing the pressure loss caused by the wind tunnel, without increasing the motor speed, and without increasing the outer diameter of the fan. .

本発明の一実施形態に係るヘアドライヤーの構成を示す側部断面図。Side part sectional drawing which shows the structure of the hair dryer which concerns on one Embodiment of this invention. 上記ヘアドライヤーのファンの形状を示す正面図。The front view which shows the shape of the fan of the said hair dryer. ファンの外径Ｄ１と風の吹き出し口の内径Ｄ２の比（Ｄ１／Ｄ２）と圧力損失の関係を示すグラフ。The graph which shows the relationship between ratio (D1 / D2) of the outer diameter D1 of a fan, and the internal diameter D2 of a blower outlet, and a pressure loss. ヘアドライヤーの圧力損失の定義を説明するためのグラフ。The graph for demonstrating the definition of the pressure loss of a hair dryer. ファンの外径Ｄ１とファンの周りの風洞部の内径Ｄ３の比（Ｄ１／Ｄ３）と最大ファン効率の関係を示すグラフ。The graph which shows the relationship between the ratio (D1 / D3) of the fan outer diameter D1 and the inner diameter D3 of the wind tunnel part around a fan, and the maximum fan efficiency.

符号の説明Explanation of symbols

１ ヘアドライヤー
２ ハウジング
３ 風洞部
４ グリップ部
５ ヒータ
６ ファン
６１ 回転軸
６２ 円板
６３ 羽根
７ モータ
８ 風の吸い込み口
９ 風の吹き出し口
１０、１１ 格子
１２ 操作スイッチ
１３ ノズル
Ｄ１ ファンの外径
Ｄ２ 風の吹き出し口の内径
Ｄ３ ファンの周りの風洞部の内径 DESCRIPTION OF SYMBOLS 1 Hair dryer 2 Housing 3 Wind tunnel part 4 Grip part 5 Heater 6 Fan 61 Rotating shaft 62 Disc 63 Blade 7 Motor 8 Wind inlet 9 Wind outlet 10, 11 Lattice 12 Operation switch 13 Nozzle D1 Fan outer diameter D2 Inside diameter of the wind outlet D3 Inside diameter of the wind tunnel around the fan

Claims (2)

略円筒状の風洞部を有するハウジングと、前記風洞部に設けられたファン、ファンを回転させるためのモータ及びヒータを備えたヘアドライヤーにおいて、
前記ファンは、回転軸と、その回転軸に略直交する円板と、その円板に対して略垂直で、かつ前記回転軸を中心とする放射方向に対して所定方向に湾曲した複数の羽根を有する遠心型のファンであり、
前記ファンの外径をＤ１、前記ハウジングの風洞部の風の吹き出し口の内径をＤ２として、Ｄ１／Ｄ２の値が１．０以上１．４５以下の範囲にあることを特徴とするヘアドライヤー。 In a hair dryer provided with a housing having a substantially cylindrical wind tunnel part, a fan provided in the wind tunnel part, a motor for rotating the fan, and a heater,
The fan includes a rotation shaft, a disk substantially orthogonal to the rotation axis, and a plurality of blades that are substantially perpendicular to the disk and curved in a predetermined direction with respect to a radial direction about the rotation axis A centrifugal fan having
A hair dryer, wherein the outer diameter of the fan is D1 and the inner diameter of the air outlet of the wind tunnel portion of the housing is D2, and the value of D1 / D2 is in the range of 1.0 to 1.45. 前記ファンの周りの前記風洞部の内径をＤ３として、Ｄ１／Ｄ３の値が０．６以上０．７５以下の範囲にあることを特徴とする請求項１に記載のヘアドライヤー。   The hair dryer according to claim 1, wherein an inner diameter of the wind tunnel around the fan is D3, and a value of D1 / D3 is in a range of 0.6 or more and 0.75 or less.
JP2005087419A 2005-03-25 2005-03-25 Hair-drier Pending JP2006263249A (en)

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JP2005087419A JP2006263249A (en) 2005-03-25 2005-03-25 Hair-drier
RU2006108170/12A RU2320248C2 (en) 2005-03-25 2006-03-15 Hair fan
US11/377,277 US20060213074A1 (en) 2005-03-25 2006-03-17 Hair dryer
CNB2006100676486A CN100438799C (en) 2005-03-25 2006-03-22 Hair dryer
DE602006002411T DE602006002411D1 (en) 2005-03-25 2006-03-23 hairdryer
AT06006042T ATE406124T1 (en) 2005-03-25 2006-03-23 HAIR DRYER
KR1020060026459A KR100693085B1 (en) 2005-03-25 2006-03-23 Hair Dryer
EP06006042A EP1704792B1 (en) 2005-03-25 2006-03-23 Hair dryer
HK06113944.4A HK1093141A1 (en) 2005-03-25 2006-12-19 Hair dryer

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US20060213074A1 (en) 2006-09-28
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EP1704792B1 (en) 2008-08-27
ATE406124T1 (en) 2008-09-15
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