JP2003206891A - Fan motor - Google Patents
Fan motorInfo
- Publication number
- JP2003206891A JP2003206891A JP2002009244A JP2002009244A JP2003206891A JP 2003206891 A JP2003206891 A JP 2003206891A JP 2002009244 A JP2002009244 A JP 2002009244A JP 2002009244 A JP2002009244 A JP 2002009244A JP 2003206891 A JP2003206891 A JP 2003206891A
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- fan motor
- housing
- rotation axis
- intake port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、回転軸に沿って吸
気し、インペラの外周部とハウジングの内側面とで形成
される送風路を通って、回転軸に直交する方向に排気す
るファンモータに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan motor that inhales air along a rotary shaft and exhausts it in a direction orthogonal to the rotary shaft through a blower passage formed by an outer peripheral portion of an impeller and an inner surface of a housing. Regarding
【０００２】[0002]
【従来の技術】回転軸に沿って吸気し、インペラの外周
部とハウジングの内側面とで形成される送風路を通っ
て、回転軸に直交する方向に排気するファンモータが知
られており、一般的にシロッコ型ファンと呼ばれること
がある。このファンモータは、強い風圧（高静圧）の空
気流を排出することができるため、強力に送風する必要
がある用途に好適で、例えば、複雑に組み込まれた多数
の部品を備える大型コンピュータ内を細部まで冷却する
場合、複写機の給紙機構に空気圧を利用する場合等のよ
うに、空調機器に限らずＯＡ機器、家電製品等幅広い分
野にて用いられる。2. Description of the Related Art There is known a fan motor which inhales air along a rotary shaft and exhausts it in a direction orthogonal to the rotary shaft through an air passage formed by an outer peripheral portion of an impeller and an inner surface of a housing. It is commonly called a Sirocco fan. This fan motor can discharge a strong air pressure (high static pressure) air flow, so it is suitable for applications that require strong ventilation, for example, in a large computer with a large number of complicatedly integrated parts. It is used in a wide range of fields such as office automation equipment and home electric appliances as well as air conditioning equipment, such as when air is used for the paper feed mechanism of a copying machine, when it is required to cool down the details.
【０００３】このようなファンモータの一般的な構成
を、図６及び図７を用いて説明する。図６は、このファ
ンモータの吸気口側からみた上面図で、図７は図６のＸ
−Ｏ−Ｙ−Ｚ線による縦断面図である。両図に示すよう
にインペラ２を備えたモータ４はハウジング６に収容さ
れている。ハウジング６は、モータ４の回転軸方向に開
口する吸気口８と、その回転軸に直交する方向に開口す
る排気口１０と、さらにインペラ２の外周部に吸気口８
と排気口１０とをつなぐ円弧状の送風路１２を備える。
ハウジング６は、上下二つの部材の組合せによりなる。A general structure of such a fan motor will be described with reference to FIGS. 6 and 7. FIG. 6 is a top view of the fan motor as seen from the intake side, and FIG.
It is a longitudinal cross-sectional view taken along the line -OYZ. A motor 4 having an impeller 2 is housed in a housing 6 as shown in both figures. The housing 6 has an intake port 8 that opens in the direction of the rotation axis of the motor 4, an exhaust port 10 that opens in the direction orthogonal to the rotation axis, and an intake port 8 on the outer peripheral portion of the impeller 2.
An arc-shaped blower passage 12 that connects the exhaust port 10 with the exhaust port 10 is provided.
The housing 6 is a combination of upper and lower members.
【０００４】インペラ２は、モータ４の外側面４ａに設
けられたリング部２ａにその外側面４ａから半径方向に
間隔をあけて回転軸に平行な面を有する小翼２ｂが周方
向に複数枚設けられている。空気はその吸気口８から回
転軸方向に吸い込まれ、主として小翼２ｂ間を通って回
転軸に直交する方向に吐き出され、送風路１２をモータ
４の回転方向に流れ排気口１０に案内される。The impeller 2 has a plurality of small blades 2b circumferentially arranged on a ring portion 2a provided on an outer surface 4a of a motor 4 and having a surface radially spaced from the outer surface 4a and parallel to the rotation axis. It is provided. The air is sucked in from the intake port 8 in the direction of the rotation axis, is mainly discharged between the small blades 2b in the direction orthogonal to the rotation axis, flows through the air passage 12 in the rotation direction of the motor 4, and is guided to the exhaust port 10. .
【０００５】送風路１２は、インペラ外周部２ｂ０とハ
ウジング６の内側面６ａとで形成され、排気口１０を最
下流とすると最下流に隣接する部位（図６の符号Ｃの付
近）に最上流が位置する。送風路１２の回転軸に対する
半径方向幅は、図６に示すように最上流から最下流に向
けて次第に拡大するようにモータ４がハウジング６に対
して配置されている。従って、回転軸に平行に切断した
送風路１２の断面は、切断部によって面積は異なるが何
れも図７に示すように矩形である。The air passage 12 is formed by the outer peripheral portion 2b0 of the impeller and the inner side surface 6a of the housing 6, and when the exhaust port 10 is the most downstream, the most upstream is located at a site adjacent to the most downstream (near C in FIG. 6). Is located. The motor 4 is arranged with respect to the housing 6 so that the radial width of the blower passage 12 with respect to the rotation axis gradually increases from the most upstream to the most downstream, as shown in FIG. Therefore, the cross section of the air passage 12 cut in parallel with the rotation axis is rectangular as shown in FIG. 7, although the area varies depending on the cut portion.
【０００６】[0006]
【発明が解決しようとする課題】ところが、このような
ファンモータが搭載される機器の高性能化により、ファ
ンモータの送風特性も一層向上させる必要がある。However, due to the high performance of the equipment in which such a fan motor is mounted, it is necessary to further improve the blowing characteristics of the fan motor.
【０００７】本発明の課題は、上記した従来のファンモ
ータの送風特性を一層向上させることである。An object of the present invention is to further improve the blowing characteristics of the conventional fan motor described above.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
に、本発明のファンモータは、回転軸に沿って吸気し、
インペラの外周部とハウジングの内側面とで形成される
送風路を通って、回転軸に直交する方向に排気するファ
ンモータにおいて、前記インペラ外周部及び前記ハウジ
ング内側面は、回転軸方向に吸気口側が互いに最も接近
し反吸気口側が互いに最も離れるように拡径して形成さ
れている。In order to solve the above-mentioned problems, the fan motor of the present invention sucks air along a rotating shaft,
In a fan motor that exhausts air in a direction orthogonal to a rotation axis through an air passage formed by the outer peripheral portion of the impeller and the inner surface of the housing, the outer peripheral portion of the impeller and the inner surface of the housing have an intake port in the rotation axis direction. The sides are formed so as to be closest to each other and the side opposite to the air inlets is most distant from each other.
【０００９】本発明のファンモータでは、吸気口を通過
した空気はそのまま回転軸方向に沿って流れつつ回転方
向に少しづつ向きを変えながら送風路を通って排気口へ
と案内される。In the fan motor of the present invention, the air that has passed through the intake port is guided along the rotation axis direction to the exhaust port through the air passage while gradually changing the direction of rotation.
【００１０】この送風路は、回転軸方向に吸気口側の半
径方向幅が最も狭く反吸気口側の半径方向幅が最も広
く、回転軸方向に送風路の吸気口側の空間が、反吸気口
側の空間に比べて狭いため、送風路は回転軸方向に吸気
口側から反吸気口側にかけて圧力分布が不均一になる。
つまり、吸気口側が正圧で反吸気口側が負圧になり、そ
の吸気口から流入した空気は、送風路の吸気口側から反
吸気口側へ流れやすくなり、送風路の全域を空気が流れ
ることで風量及び静圧の送風特性が良好となる。This air passage has the smallest radial width on the intake side in the rotational axis direction and the largest radial width on the anti-intake opening side, and the space on the intake side of the air passage in the rotational axis direction is the anti-intake air. Since the air passage is narrower than the space on the mouth side, the pressure distribution in the air passage becomes uneven in the rotation axis direction from the intake side to the non-intake side.
That is, the intake side has a positive pressure and the anti-intake side has a negative pressure, and the air flowing from the intake port easily flows from the intake port side of the air passage to the anti-intake port side, and the air flows through the entire air passage. As a result, the blowing characteristics of air volume and static pressure become good.
【００１１】なお、従来のファンモータの送風路では、
回転軸方向に半径方向幅が一定でその圧力分布は実質的
に均一であるため、吸気口より流入した空気は、送風路
の反吸気口側へいくにしたがって流れ難くなる。これに
より、送風路において気流の流速が著しく低い領域があ
り送風路の全域に空気が流れず送風特性を低下させる原
因となっていた。In the conventional fan motor air duct,
Since the radial width is constant in the rotational axis direction and the pressure distribution is substantially uniform, the air flowing in from the intake port becomes less likely to flow toward the side opposite to the intake port of the air passage. As a result, there is a region where the flow velocity of the air flow is extremely low in the air passage, and air has not flowed over the entire air passage, causing the air blowing characteristics to deteriorate.
【００１２】本発明の送風路は、前記インペラ外周部を
全て拡径して形成することができるが、拡径しない部位
を含んで形成することもできる。また、前記ハウジング
内側面を全て拡径して形成することができるが、拡径し
ない部位を含んで形成することもできる。The air passage according to the present invention can be formed by expanding the entire outer peripheral portion of the impeller, but can also be formed by including a portion where the diameter is not expanded. Further, the inner side surface of the housing can be formed by expanding the entire diameter, but it can also be formed by including a portion where the diameter is not expanded.
【００１３】さらに、本発明の通風路は、回転軸に直交
する方向の間隙幅が上流側から下流側に向かって次第に
拡大するようにしてもよい。Further, in the ventilation passage of the present invention, the gap width in the direction orthogonal to the rotation axis may be gradually expanded from the upstream side to the downstream side.
【００１４】さらに、本発明の前記インペラは、回転軸
に平行な面を有する小翼が周方向に間隔をあけて設けら
れた複数枚からなる形状とすることができる。このよう
なインペラを有するファンをシロッコ型ファン、または
遠心ファンということがある。Further, the impeller of the present invention may be formed of a plurality of small blades having a plane parallel to the rotation axis and provided at intervals in the circumferential direction. A fan having such an impeller is sometimes called a sirocco type fan or a centrifugal fan.
【００１５】[0015]
【発明の実施の形態】本発明のファンモータにかかる実
施形態について図面を参照しながら説明する。なお、説
明は、上記した図６及び図７と異なる構成を中心に説明
し、同一の部位については同一符合を用いて説明の重複
を避けることとする。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a fan motor of the present invention will be described with reference to the drawings. It should be noted that the description will be focused on the configuration different from those in FIGS. 6 and 7 described above, and the same parts will be denoted by the same reference numerals to avoid duplication of description.
【００１６】本発明の第１実施形態のファンモータは、
図１に示すようにインペラ２を備えたモータ４がハウジ
ング６に収容され、ハウジング６にはモータ４の回転軸
方向に開口する吸気口８とその回転軸に直交する方向に
開口する排気口１０とさらにインペラ２の外周部に吸気
口８と排気口１０をつなぐ円弧状の送風路１２を備え
る。The fan motor according to the first embodiment of the present invention is
As shown in FIG. 1, a motor 4 having an impeller 2 is housed in a housing 6, and in the housing 6, an intake port 8 opened in the rotation axis direction of the motor 4 and an exhaust port 10 opened in a direction orthogonal to the rotation axis. In addition, an arc-shaped air passage 12 connecting the intake port 8 and the exhaust port 10 is provided on the outer peripheral portion of the impeller 2.
【００１７】上記した図６及び図７に示す従来のファン
モータと異なる点は、従来のインペラ外周部２ｂ０及び
ハウジング６の内側面６ａ１が同一径であったのが、本
形態では回転軸方向に拡径するところである。即ち、図
２に示すようにこのインペラ２ｂ１（即ち、インペラ２
を構成する小翼２ｂの外周部）は、反吸気口側の端部
（小翼２ａの下端）の外径が最小となり、ここから回転
軸方向に吸気口側に向けて単調に拡径して吸気口側の端
部（小翼２ａの上端）の外径が最大となるように形成さ
れ、送風路１２の最上流から最下流である最下流である
排気口１０まで連続して形成されている。The difference from the conventional fan motor shown in FIGS. 6 and 7 is that the outer peripheral portion 2b0 of the conventional impeller and the inner side surface 6a1 of the housing 6 have the same diameter. It is about to be expanded. That is, as shown in FIG. 2, the impeller 2b1 (that is, the impeller 2
The outer diameter of the small wing 2b, which constitutes the wing, has the minimum outer diameter at the end on the side opposite to the intake port (the lower end of the small wing 2a), and from there the diameter increases monotonically toward the intake side. Is formed so that the outer diameter of the end portion on the intake port side (the upper end of the small blade 2a) is maximized, and is continuously formed from the most upstream of the air passage 12 to the most downstream exhaust port 10 of the most downstream. ing.
【００１８】一方、インペラ外周部２ｂ１に対向するハ
ウジング内側面６ａ１は、吸気口側の端部の内径が最小
となり、ここから回転軸方向に反吸気口側に向けて単調
に拡径して反吸気口側の端部の内径が最大となるように
形成され、送風路１２の最上流から最下流である最下流
である排気口１０まで連続して形成されている。これに
より、送風路１２は、図２に示すように回転軸方向に吸
気口側の端部の半径方向幅が最も狭く反吸気口側の端部
の半径方向幅が最も広くなる略三角形となり、回転軸方
向に送風路１２の吸気口側の空間が、反吸気口側の空間
に比べて狭い空間をなす。なお、この半径方向幅は、あ
る切断面における回転軸方向の大小関係を維持しつつ最
上流から最下流に向かうにつれて次第に拡大するように
なっている。On the other hand, the inner side surface 6a1 of the housing, which faces the outer peripheral portion 2b1 of the impeller, has the smallest inner diameter at the end portion on the intake port side, and from there, it monotonically expands in the direction opposite to the intake port side to the opposite side. It is formed so that the inner diameter of the end portion on the intake port side is maximized, and is continuously formed from the most upstream of the air passage 12 to the most downstream exhaust port 10, which is the most downstream. As a result, as shown in FIG. 2, the air passage 12 becomes a substantially triangular shape in which the radial width of the end portion on the intake port side is the smallest in the rotational axis direction and the radial width of the end portion on the non-intake port side is the widest, The space on the intake port side of the blower passage 12 in the direction of the rotation axis is a space narrower than the space on the side opposite to the intake port. The radial width gradually expands from the most upstream to the most downstream while maintaining the magnitude relationship in the direction of the rotation axis on a certain cut surface.
【００１９】このようなファンモータであると、送風路
１２は回転軸方向に吸気口側から反吸気口側にかけて圧
力分布が不均一になる。つまり、吸気口側が正圧で反吸
気口側が負圧になる。これにより、その吸気口から流入
した空気は、送風路１２の吸気口側から反吸気口側へ流
れやすくなり、送風路１２のハウジング６の底面付近や
隅部を含む全域を空気が円滑に流れ、風量及び静圧の送
風特性が良好となる。With such a fan motor, the air passage 12 has a non-uniform pressure distribution in the rotation axis direction from the intake port side to the non-intake port side. That is, the intake port side has a positive pressure and the non-intake port side has a negative pressure. As a result, the air that has flowed in through the air intake port easily flows from the air intake port side of the air passage 12 to the opposite air intake side, and the air smoothly flows over the entire area of the air passage 12 near the bottom surface and corners of the housing 6. The air blowing characteristics of air volume and static pressure are improved.
【００２０】次に第２の実施形態について図３を参照し
て説明する。第１実施形態ではインペラ外周部２ｂ１及
びハウジング内側面６ａ１が全て拡径する形状であった
が、第２実施形態のインペラ外周部２ｂ２及びハウジン
グ内側面６ａ２は、拡径しない部位を含むようにして形
成されている。即ち、このインペラ外周部２ｂ２（即
ち、インペラ２を構成する小翼２ｂの外周部）は、回転
軸方向にほぼ二等分した中心点から吸気口側の端部まで
第１実施形態のそれと同様に拡径し、その中心点から反
吸気口側の端部まで同一径で形成されている。つまり、
このインペラ２の外周部は、拡径しない部位を含んでい
る。Next, a second embodiment will be described with reference to FIG. In the first embodiment, the impeller outer peripheral portion 2b1 and the housing inner side surface 6a1 all have a shape in which the diameter is expanded, but the impeller outer peripheral portion 2b2 and the housing inner side surface 6a2 in the second embodiment are formed so as to include a portion that does not expand the diameter. ing. That is, the impeller outer peripheral portion 2b2 (that is, the outer peripheral portion of the small blade 2b forming the impeller 2) is the same as that of the first embodiment from the center point substantially bisected in the rotation axis direction to the end on the intake port side. The diameter is increased, and the same diameter is formed from the center point to the end on the side opposite to the intake port. That is,
The outer peripheral portion of the impeller 2 includes a portion where the diameter is not expanded.
【００２１】一方、このハウジング内側面６ａ２は、回
転軸方向に吸気口側の端部から回転軸方向にほぼ二等分
した中心点まで第１実施形態のそれと同様に拡径し、そ
の中心点から反吸気口側の端部まで同一径で形成されて
いる。つまり、このハウジング内側面６ａ２も、拡径し
ない部位を含んでいる。On the other hand, the inner surface 6a2 of the housing is expanded in the same manner as in the first embodiment from the end portion on the intake port side in the rotation axis direction to the center point substantially bisected in the rotation axis direction. To the end on the side opposite to the intake port are formed with the same diameter. That is, the housing inner side surface 6a2 also includes a portion that does not expand in diameter.
【００２２】このようなファンモータにおいても、送風
路１２は回転軸方向に吸気口側から反吸気口側にかけて
圧力分布が不均一になり、第１実施形態と同様の効果が
得られる。In such a fan motor as well, the blower passage 12 has a non-uniform pressure distribution from the intake port side to the non-intake port side in the rotational axis direction, and the same effect as in the first embodiment can be obtained.
【００２３】次に第３の実施形態について図４を参照し
て説明する。第３実施形態のインペラ外周部２ｂ３及び
ハウジング内側面６ａ３は、第２実施形態のそれと同様
に、拡径しない部位を含むようにして形成されている
が、細部の形状が異なる。即ち、このインペラ外周部２
ｂ３（即ち、インペラ２を構成する小翼２ｂの外周部）
は、回転軸方向にほぼ二等分した中心点から吸気口側の
全てが反吸気口側の全てよりも外径が大きい。つまり、
これら吸気口側及び反吸気口側の外径は、それぞれにお
いて同一径で拡径しないが全体としては一方が他方に対
して拡径し、本形態のインペラ外周部２ｂ３は、インペ
ラ中心点を基準に段差が形成されている。なお、この段
差は傾斜しているが水平でもよい。Next, a third embodiment will be described with reference to FIG. The impeller outer peripheral portion 2b3 and the housing inner side surface 6a3 of the third embodiment are formed so as to include a portion that does not expand in diameter, as in the second embodiment, but the shapes of the details are different. That is, this impeller outer peripheral portion 2
b3 (that is, the outer peripheral portion of the small blade 2b forming the impeller 2)
Has a larger outer diameter on the intake side from the center point that is substantially bisected in the rotation axis direction than on the non-intake side. That is,
The outer diameters of the intake port side and the non-intake port side are not the same, but one is expanded as a whole with respect to the other, and the impeller outer peripheral portion 2b3 of the present embodiment is based on the impeller center point. A step is formed on the. Although this step is inclined, it may be horizontal.
【００２４】一方、ハウジング内側面６ａ３は、回転軸
方向にほぼ二等分した中心点から吸気口側の全てが反吸
気口側の全てよりも内径が小さい。つまり、これら吸気
口側及び反吸気口側の内径は、それぞれにおいて同一径
で拡径しないが全体としては一方が他方に対して拡径
し、本形態のハウジング内側面６ａ３は、ハウジング内
側面の中心点を基準に段差が形成されている。なお、こ
の段差は水平であるが傾斜してもよい。On the other hand, the inner surface 6a3 of the housing has a smaller inner diameter on the intake port side from the center point that is substantially bisected in the rotation axis direction than on the non-intake port side. That is, the inner diameters of the intake port side and the anti-intake port side are not the same, but one is expanded as a whole with respect to the other, and the housing inner side surface 6a3 of the present embodiment is A step is formed based on the center point. Although this step is horizontal, it may be inclined.
【００２５】従って、インペラ外周部２ｂ３及びハウジ
ング内側面６ａ３は、その中心点を境に回転軸方向に吸
気口側が互いに最も接近し反吸気口側が互いに最も離れ
る。Therefore, the impeller outer peripheral portion 2b3 and the housing inner side surface 6a3 have their intake ports closest to each other and their anti-intake ports farthest from each other in the direction of the rotation axis with the center point as a boundary.
【００２６】このようなファンモータにおいても、送風
路１２は回転軸方向に吸気口側から反吸気口側にかけて
圧力分布が不均一になり、第１及び２実施形態と同様の
効果が得られる。In such a fan motor as well, the blower passage 12 has a non-uniform pressure distribution from the intake port side to the non-intake port side in the rotation axis direction, and the same effect as in the first and second embodiments can be obtained.
【００２７】第４の実施形態について図５を参照して説
明する。第１〜３実施形態では、吸気口８がハウジング
６の回転軸方向の一方のみに開口する構成であったが、
第４実施形態のファンモータは、吸気口がハウジング６
の回転軸方向の両方に開口する。即ち、図４に示すよう
にハウジング６の回転軸方向の一方には上記と同様の吸
気口８が形成され、他方に吸気口８ａがハウジング６の
底面に形成されている。インペラ２のリング部２ａには
貫通穴があり、この貫通穴を通って吸気口８ａから流入
した空気が小翼２ｂ間へ案内される。これによりこのフ
ァンモータでは、回転軸方向の両方向から吸気する構成
となる。なお、吸気口８ａは、モータ４をハウジング６
に支持する部位があるため複数の穴からなる。A fourth embodiment will be described with reference to FIG. In the first to third embodiments, the intake port 8 is configured to open in only one side of the housing 6 in the rotation axis direction.
In the fan motor of the fourth embodiment, the intake port is the housing 6
Open in both directions of rotation axis. That is, as shown in FIG. 4, an intake port 8 similar to the above is formed on one side of the housing 6 in the rotation axis direction, and an intake port 8a is formed on the bottom surface of the housing 6 on the other side. The ring portion 2a of the impeller 2 has a through hole, and the air flowing in from the intake port 8a is guided between the small blades 2b through the through hole. As a result, this fan motor is configured to intake air from both directions of the rotation axis. In addition, the intake port 8a is provided with the motor 4 and the housing 6
It consists of multiple holes because there is a site to support.
【００２８】インペラ外周部２ｂ４（即ち、インペラ２
を構成する小翼２ｂの外周部）は、回転軸方向にほぼ二
等分した中心点から吸気口８、８ａ側の両端部まで単調
に拡径して形成されている。一方、ハウジング内側面６
ａ４は、回転軸方向に吸気口８、８ａ側の両端部から回
転軸方向に二等分した中心点まで内径が拡径して形成さ
れている。なお、この場合、回転軸方向に反吸気口側と
は、回転軸方向に二等分した中心点である。これによ
り、送風路１２は、回転軸に平行に切断した断面が図５
に示すように回転軸方向に吸気口８、８ａ側の端部の半
径方向幅が最も狭く反吸気口８、８ａ側の端部（インペ
ラ２の中央）のそれが最も広くなる略菱形となる。Impeller outer peripheral portion 2b4 (that is, impeller 2
The outer peripheral portion of the small blade 2b) is formed by monotonically increasing the diameter from a center point that is substantially bisected in the rotation axis direction to both end portions on the intake ports 8 and 8a side. On the other hand, the inner surface 6 of the housing
The a4 is formed such that the inner diameter is expanded from both ends on the intake port 8, 8a side in the rotation axis direction to a center point that is bisected in the rotation axis direction. In this case, the side opposite to the intake port in the rotation axis direction is a center point that is bisected in the rotation axis direction. As a result, the cross section of the air passage 12 taken parallel to the rotation axis is shown in FIG.
As shown in FIG. 5, the radial width of the end portion on the intake port 8, 8a side is the smallest in the rotational axis direction, and that on the end portion on the side opposite to the intake port 8, 8a (the center of the impeller 2) is the widest rhombic shape. .
【００２９】このような吸気口８、８ａを備えるファン
モータにおいても、送風路１２は回転軸方向に吸気口側
から反吸気口側にかけて圧力分布が不均一になり、第１
〜３実施形態と同様の効果が得られる。Even in the fan motor having the intake ports 8 and 8a, the blower passage 12 has a non-uniform pressure distribution from the intake port side to the non-intake port side in the rotation axis direction.
~ The same effect as the third embodiment can be obtained.
【００３０】以上、本発明の実施形態について説明した
が、これらは一例に過ぎずこれに限定されるものではな
く、本発明の主旨を逸脱することのない範囲で変更が可
能である。例えば、インペラ外周部２ｂ１、２ｂ２、２
ｂ４は、何れも切断面が直線を形成するがこれに変えて
曲線を形成するものであってもよい。また、ハウジング
内側面６ａ１、６ａ２、６ａ４も、何れも切断面が直線
を形成するがこれに変えて曲線を形成するものであって
もよい。また、第１〜４実施形態のインペラ２は、リン
グ部２ａがモータ４の反吸気口側に形成されているが、
モータ４の中央部或いは吸気口側に形成されていてもよ
い。さらにインペラ外周部及びハウジング内側面は、回
転軸方向に吸気口側が互いに最も接近し反吸気口側が互
いに最も離れるのであれば、上記各実施形態のそれぞれ
のインペラ外周部及びハウジング内側面の組み合わせを
変更してもよい。Although the embodiments of the present invention have been described above, they are merely examples, and the present invention is not limited to these. Modifications can be made without departing from the gist of the present invention. For example, impeller outer peripheral portions 2b1, 2b2, 2
In each of b4, the cut surface forms a straight line, but instead of this, a curved line may be formed. In addition, the inner side surfaces 6a1, 6a2, 6a4 of the housing all have cut surfaces that are straight lines, but may be curved lines instead of these. Further, in the impeller 2 of the first to fourth embodiments, the ring portion 2a is formed on the side opposite to the intake port of the motor 4,
It may be formed in the central portion of the motor 4 or on the intake port side. Further, regarding the outer peripheral portion of the impeller and the inner side surface of the housing, if the inlet side is closest to each other and the opposite side is farthest from each other in the rotation axis direction, the combination of the outer peripheral portion of the impeller and the inner side surface of the housing in each of the above embodiments is changed. You may.
【００３１】なお、本発明は、上記のように送風路の圧
力分布を不均一にして気流を制御することで送風特性を
改善するものであるが、特開平７−９１４００号公報に
送風路を形成する隅部をアールにする構成が開示され、
一見すると本発明のハウジングに類似するが、これは隅
部にて乱流を防止して気流を制御するもので、本発明の
ように圧力分布を不均一にするものではないため構成な
らびに作用効果が全く異なる。よって、特開平７−９１
４００号公報のような構成は、本発明に何ら関係するも
のではない。Although the present invention improves the blowing characteristics by controlling the air flow by making the pressure distribution in the blowing passage non-uniform as described above, Japanese Patent Laid-Open No. 7-91400 discloses a blowing passage. A configuration in which the corner to be formed is rounded is disclosed,
At first glance, it is similar to the housing of the present invention, but this is to prevent turbulence at the corners to control the air flow, and does not make the pressure distribution non-uniform as in the present invention. Is completely different. Therefore, JP-A-7-91
The structure of Japanese Patent Publication No. 400 is not related to the present invention.
【００３２】[0032]
【発明の効果】本発明のファンモータは、送風路を形成
するインペラ外周部及びハウジング内側面の形状を変更
することで送風特性を向上させることができる。この場
合、モータの回転数やハウジングの外形寸法等を変更す
るものではないため、消費電力や製造コストの高騰をと
もなうものではない。The fan motor of the present invention can improve the air blowing characteristics by changing the shapes of the outer peripheral portion of the impeller and the inner surface of the housing that form the air blowing passage. In this case, since the number of rotations of the motor and the outer dimensions of the housing are not changed, the power consumption and the manufacturing cost are not soared.
【図１】本発明の第１実施形態を示すファンモータの上
面図。FIG. 1 is a top view of a fan motor showing a first embodiment of the present invention.
【図２】図１のＸ−Ｏ−Ｙ−Ｚ線にて切断した断面図。FIG. 2 is a sectional view taken along line X-O-Y-Z in FIG.
【図３】本発明の第２実施形態を示す断面図。FIG. 3 is a sectional view showing a second embodiment of the present invention.
【図４】本発明の第３実施形態を示す断面図。FIG. 4 is a sectional view showing a third embodiment of the present invention.
【図５】本発明の第４実施形態を示す断面図。FIG. 5 is a sectional view showing a fourth embodiment of the present invention.
【図６】従来のファンモータを示す上面図。FIG. 6 is a top view showing a conventional fan motor.
【図７】図６のＸ−Ｏ−Ｙ−Ｚ線にて切断した断面図。7 is a cross-sectional view taken along line X-O-Y-Z in FIG.
２ インペラ ２ｂ 小翼 ２ｂ１、２ｂ２、２ｂ３、２ｂ４ インペラ外周部 ４ モータ ６ ハウジング ６ａ１、６ａ２、６ａ３、６ａ４ ハウジング内側面 ８、８ａ 吸気口 １０ 排気口 １２ 送風路 2 impeller 2b small wings 2b1, 2b2, 2b3, 2b4 Impeller outer peripheral portion 4 motor 6 housing 6a1, 6a2, 6a3, 6a4 Inside surface of housing 8,8a intake port 10 exhaust port 12 air duct
───────────────────────────────────────────────────── フロントページの続き (72)発明者 横谷 裕嗣 鳥取県日野郡溝口町荘字清水田55 日本電 産エレクトロニクス株式会社鳥取技術開発 センター内 (72)発明者 吉田 裕亮 鳥取県日野郡溝口町荘字清水田55 日本電 産エレクトロニクス株式会社鳥取技術開発 センター内 Ｆターム(参考） 3H033 AA02 CC01 CC03 CC04 DD03 EE19 3H034 AA02 BB02 BB06 CC01 CC03 CC04 DD08 EE18 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Hirotsugu Yokotani 55 Shimizuda, Zoji, Mizoguchi-cho, Hino-gun, Tottori Prefecture Industrial Electronics Co., Ltd. Tottori Technology Development In the center (72) Inventor Yusuke Yoshida 55 Shimizuda, Zoji, Mizoguchi-cho, Hino-gun, Tottori Prefecture Industrial Electronics Co., Ltd. Tottori Technology Development In the center F-term (reference) 3H033 AA02 CC01 CC03 CC04 DD03 EE19 3H034 AA02 BB02 BB06 CC01 CC03 CC04 DD08 EE18
Claims (7)
とハウジングの内側面とで形成される送風路を通って、
回転軸に直交する方向に排気するファンモータにおい
て、前記インペラ外周部及び前記ハウジング内側面は、
回転軸方向に吸気口側が互いに最も接近し反吸気口側が
互いに最も離れるように拡径して形成されていることを
特徴とするファンモータ。Claim: What is claimed is: 1. Intake along a rotary shaft, and through an air passage formed by an outer peripheral portion of an impeller and an inner surface of a housing,
In a fan motor that exhausts air in a direction orthogonal to the rotation axis, the impeller outer peripheral portion and the housing inner side surface are
A fan motor, wherein the fan motors are formed such that their diameters are expanded such that the intake ports are closest to each other and the non-intake ports are farthest from each other in the rotation axis direction.
されている請求項１に記載のファンモータ。2. The fan motor according to claim 1, wherein the outer peripheral portion of the impeller is formed so as to have an enlarged diameter.
含んで形成されている請求項１に記載のファンモータ。3. The fan motor according to claim 1, wherein the outer peripheral portion of the impeller includes a portion that does not expand in diameter.
成されている請求項１〜３の何れかに記載のファンモー
タ。4. The fan motor according to claim 1, wherein an inner side surface of the housing is formed so as to have an enlarged diameter.
を含んで形成されている請求項１〜３の何れかに記載の
ファンモータ。5. The fan motor according to claim 1, wherein the inner surface of the housing is formed to include a portion that does not expand in diameter.
隙幅が上流側から下流側に向かって次第に拡大する請求
項１〜５の何れかに記載のファンモータ。6. The fan motor according to claim 1, wherein the air passage has a gap width in a direction orthogonal to the rotation axis gradually increasing from the upstream side to the downstream side.
る小翼が周方向に間隔をあけて設けられた複数枚からな
る請求項１〜６の何れかに記載のファンモータ。7. The fan motor according to claim 1, wherein the impeller comprises a plurality of winglets each having a surface parallel to the rotation axis and provided at intervals in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002009244A JP2003206891A (en) | 2002-01-17 | 2002-01-17 | Fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002009244A JP2003206891A (en) | 2002-01-17 | 2002-01-17 | Fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003206891A true JP2003206891A (en) | 2003-07-25 |
Family
ID=27647295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002009244A Withdrawn JP2003206891A (en) | 2002-01-17 | 2002-01-17 | Fan motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003206891A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7481617B2 (en) | 2004-05-19 | 2009-01-27 | Delta Electronics, Inc. | Heat-dissipating device |
| JP2011052626A (en) * | 2009-09-03 | 2011-03-17 | Mitsubishi Heavy Ind Ltd | Multi-blade centrifugal fan and air conditioner using the same |
| JP2014173442A (en) * | 2013-03-06 | 2014-09-22 | Sanden Corp | Centrifugal blower and vehicular air conditioner with centrifugal blower |
| JP2016102413A (en) * | 2014-11-27 | 2016-06-02 | ミネベア株式会社 | Centrifugal blower fan |
| US10859093B2 (en) | 2017-01-19 | 2020-12-08 | Nidec Corporation | Blower |
| JPWO2020008519A1 (en) * | 2018-07-03 | 2021-01-07 | 三菱電機株式会社 | Multi-blade blower and air conditioner |
| WO2021039754A1 (en) * | 2019-08-26 | 2021-03-04 | パナソニックＩｐマネジメント株式会社 | Blower, and air supply fan |
-
2002
- 2002-01-17 JP JP2002009244A patent/JP2003206891A/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7481617B2 (en) | 2004-05-19 | 2009-01-27 | Delta Electronics, Inc. | Heat-dissipating device |
| JP2011052626A (en) * | 2009-09-03 | 2011-03-17 | Mitsubishi Heavy Ind Ltd | Multi-blade centrifugal fan and air conditioner using the same |
| JP2014173442A (en) * | 2013-03-06 | 2014-09-22 | Sanden Corp | Centrifugal blower and vehicular air conditioner with centrifugal blower |
| JP2016102413A (en) * | 2014-11-27 | 2016-06-02 | ミネベア株式会社 | Centrifugal blower fan |
| US10125774B2 (en) | 2014-11-27 | 2018-11-13 | Minebea Co., Ltd. | Centrifugal fan |
| US10859093B2 (en) | 2017-01-19 | 2020-12-08 | Nidec Corporation | Blower |
| JPWO2020008519A1 (en) * | 2018-07-03 | 2021-01-07 | 三菱電機株式会社 | Multi-blade blower and air conditioner |
| CN112352108A (en) * | 2018-07-03 | 2021-02-09 | 三菱电机株式会社 | Multi-blade blower and air conditioner |
| WO2021039754A1 (en) * | 2019-08-26 | 2021-03-04 | パナソニックＩｐマネジメント株式会社 | Blower, and air supply fan |
| JPWO2021039754A1 (en) * | 2019-08-26 | 2021-03-04 | ||
| JP7108829B2 (en) | 2019-08-26 | 2022-07-29 | パナソニックＩｐマネジメント株式会社 | Air blower, air supply fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018204570B2 (en) | Blower and outdoor unit of air conditioner comprising same | |
| JP2004360670A (en) | Centrifugal blower | |
| JP6381811B2 (en) | Blower and air conditioner | |
| JP2007146709A (en) | Multiblade centrifugal blower | |
| TWI807298B (en) | Impellers, Centrifugal Fans and Air Conditioners | |
| JP3812537B2 (en) | Centrifugal blower | |
| JP2002070793A (en) | Centrifugal blower | |
| JP4140236B2 (en) | Blower and outdoor unit for air conditioner | |
| JP2003206891A (en) | Fan motor | |
| CN110914553B (en) | Impeller, blower and air conditioner | |
| JP6005256B2 (en) | Impeller and axial flow blower using the same | |
| JP2009275524A (en) | Axial flow blower | |
| JP2001003899A (en) | Blower, and air conditioner and air cleaner using it | |
| JP2001132687A (en) | Impeller of centrifugal air blower and air conditioner | |
| JP2007154685A (en) | Turbo fan and air conditioner using the same | |
| US20220205650A1 (en) | Air conditioner including a centrifugal fan | |
| JP2003206890A (en) | Fan motor | |
| JP2001182692A (en) | Centrifugal air blower | |
| JP3130089U (en) | Centrifugal blower | |
| JPH05296195A (en) | Axial fan | |
| JP4423921B2 (en) | Centrifugal blower and air conditioner using the same | |
| JP2003206897A (en) | Fan motor | |
| JP6719670B2 (en) | Electric blower, vacuum cleaner, and hand dryer | |
| JPH05312191A (en) | Centrifugal fan | |
| JP2002357194A (en) | Cross-flow fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20050405 |