JP2007170292A - Blower - Google Patents

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JP2007170292A
JP2007170292A JP2005369649A JP2005369649A JP2007170292A JP 2007170292 A JP2007170292 A JP 2007170292A JP 2005369649 A JP2005369649 A JP 2005369649A JP 2005369649 A JP2005369649 A JP 2005369649A JP 2007170292 A JP2007170292 A JP 2007170292A
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blade
root
blades
degrees
frame
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JP4967334B2 (en
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Katsumi Funato
克巳 舟戸
Kiminobu Yamamoto
公伸 山本
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a blower in which the distance from the ceiling to blades is shortened without changing a shape of a main body part. <P>SOLUTION: The blower has a plurality of blade frames 6 disposed to a rotor 5 of an outer rotor type electric motor 1, and a plurality of plate-like blades 7 fixed to the blade frames 6. The blades 7 are rotated in a horizontal plane, and their twisting angles are 6 degrees to 14 degrees, so that the distance from the ceiling 2 to the blades 7 is shortened without changing the shape of the main body part constituted of the outer rotor type electric motor 1 and the rotor 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、天井面に設置してアウターローターを用い羽根を駆動して送風を行なう送風装置に関する。   The present invention relates to a blower that is installed on a ceiling surface and blows air by driving blades using an outer rotor.

従来、この種の送風装置の一例として天井面の近傍に設置できる天井扇が知られている（例えば、特許文献１参照）。   Conventionally, a ceiling fan that can be installed in the vicinity of a ceiling surface is known as an example of this type of blower (see, for example, Patent Document 1).

以下、その天井扇について図１２および図１３を参照しながら説明する。   Hereinafter, the ceiling fan will be described with reference to FIGS. 12 and 13.

図に示すように、キヤノピー１０１内の天井に取り付けられる簡易取付金具１０２と樹脂成形のハンガー１０３の係合により吊り下げられ、支持部材１０４にモータの軸を兼ねる固定子１０５が固着され、外側回転子１０６には外側回転体１０７が一体に形成され、外側回転体１０７にはホルダー１０８がねじ止めされ、ホルダー１０８には羽根１０９がねじ止めされている。そしてキヤノピー１０１の内部に制御基板ホルダー１１０を設け制御基板１１１を取り付けて構成している。
特開平１１−２１０６７８号公報（［００１６］〜［００２２］、図３、図４） As shown in the drawing, the stator 105 that is suspended by the engagement of the simple mounting bracket 102 attached to the ceiling in the canopy 101 and the resin-molded hanger 103 is fixed to the support member 104 and serves as the motor shaft. An outer rotating body 107 is formed integrally with the child 106, a holder 108 is screwed to the outer rotating body 107, and a blade 109 is screwed to the holder 108. A control board holder 110 is provided inside the canopy 101 and a control board 111 is attached.
Japanese Patent Laid-Open No. 11-210678 ([0016] to [0022], FIGS. 3 and 4)

このような従来の天井扇では、キヤノピー１０１を大きくして、内部の空間を利用し制御基板ホルダー１１０を設け、制御基板１１１を取り付けることにより、天井面と羽根１０９との間隔を小さくしているが、キヤノピー１０１が大型となりインテリア性も悪くなるという課題があり、キヤノピーを含めた本体部分の形状を変えることなく天井から羽根までの距離を短くすることが要求されている。   In such a conventional ceiling fan, the space between the ceiling surface and the blade 109 is reduced by enlarging the canopy 101, providing the control board holder 110 using the internal space, and attaching the control board 111. However, there is a problem that the canopy 101 is large and the interior property is also deteriorated, and it is required to shorten the distance from the ceiling to the blades without changing the shape of the main body portion including the canopy.

本発明はこのような従来の課題を解決するものであり、本体部分の形状を変えることなく、天井から羽根までの距離を短くできる送風装置を提供することを目的としている。   The present invention solves such a conventional problem, and an object of the present invention is to provide a blower that can shorten the distance from the ceiling to the blades without changing the shape of the main body.

本発明の送風装置は上記目的を達成するために、アウターローター型電動機のローターに設けられる複数の羽根フレームと、この羽根フレームに固定される複数の板状の羽根とを備え、前記羽根は水平面で回転するとともに、ひねり角度を６度〜１４度に構成したものである。   In order to achieve the above object, a blower device of the present invention includes a plurality of blade frames provided on a rotor of an outer rotor type electric motor, and a plurality of plate-like blades fixed to the blade frames. And the twist angle is 6 degrees to 14 degrees.

この手段により、風速を確保し、送風性能を発揮できる送風装置が得られる。   By this means, it is possible to obtain a blower device that can secure the wind speed and exhibit the blowing performance.

また、他の手段は、板状羽根の根元の取付角度を１５度以下としたものである。   Another means is to set the base mounting angle of the plate-like blade to 15 degrees or less.

この手段により、天井から羽根までの間隔が狭い場合でも、直下に送風することができる送風装置が得られる。   By this means, even if the distance from the ceiling to the blades is narrow, a blower that can blow directly below is obtained.

また、他の手段は、投影形状を根元幅から先端幅まで単一形状とするとともに、羽根の根元から羽根全長の５０〜７５％の範囲で反り率８％以上に形成し、全長の０〜５０％および７５％〜１００％の範囲で反り率８％未満としたものである。   Another means is that the projection shape is a single shape from the root width to the tip width, and the warping rate is 8% or more in the range of 50 to 75% of the blade total length from the blade root to 0 to The warpage rate is less than 8% in the range of 50% and 75% to 100%.

この手段により、風の乱れの少ない羽根とすることができる送風装置が得られる。   By this means, a blower that can be made into blades with less wind turbulence is obtained.

また、他の手段は、羽根の根元の反り率を０に近い略平面とし羽根根元から羽根長さ５０％の範囲までを徐々に反り率を８％まで大きく形成したものである。   The other means is that the warp rate at the base of the blade is a substantially flat surface close to 0, and the warp rate is gradually increased up to 8% from the blade root to the range of the blade length of 50%.

この手段により、羽根の軽量化とともに回転時の負荷も軽減できる送風装置が得られる。   By this means, it is possible to obtain a blower capable of reducing the load during rotation as well as reducing the weight of the blades.

また、他の手段は、羽根の根元付近に補強リブを設け、前記補強リブを覆うように先端幅小なる羽根フレームを嵌合するとともに、前記フレームの先端部に沿う外周リブを立設したものである。   Another means is that a reinforcing rib is provided near the base of the blade, a blade frame having a small tip width is fitted so as to cover the reinforcing rib, and an outer peripheral rib extending along the tip portion of the frame is erected. It is.

この手段により、羽根と羽根フレームが一体化しやすくなるとともに、取付時の位置決めが容易となる送風装置が得られる。   By this means, it is easy to integrate the blade and the blade frame, and it is possible to obtain a blower that facilitates positioning during mounting.

また、他の手段は、羽根フレームに逆取付防止用の挿入孔を設け、前記挿入孔に対応する突起部を羽根の補強リブに設けたものである。   Another means is that a blade frame is provided with an insertion hole for preventing reverse mounting, and a protrusion corresponding to the insertion hole is provided on the reinforcing rib of the blade.

この手段により、取り付け作業性を向上できる送風装置が得られる。   By this means, a blower capable of improving the mounting workability is obtained.

本発明によれば風速を確保し送風機能を発揮できるという効果のある送風装置を提供できる。   ADVANTAGE OF THE INVENTION According to this invention, the air blower with the effect of ensuring a wind speed and exhibiting an air blowing function can be provided.

また、天井から羽根までの間隔が狭い場合でも直下に送風することができるという効果のある送風装置を提供できる。   Moreover, even if the space | interval from a ceiling to a blade | wing is narrow, it can provide the ventilation apparatus with the effect that it can ventilate directly below.

また、風の乱れの少ない羽根とすることができるという効果のある送風装置を提供できる。   Moreover, the air blower with the effect that it can be set as a blade | wing with little turbulence of a wind can be provided.

また、羽根の軽量化とともに、回転時の負荷も軽減できるという効果のある送風装置を提供できる。   In addition, it is possible to provide an air blower that has the effect of reducing the load during rotation as well as reducing the weight of the blades.

また、羽根と羽根フレームが一体化しやすくなるとともに、取付時の位置決めが容易になるという効果のある送風装置を提供できる。   In addition, it is possible to provide an air blowing device that has an effect of facilitating the integration of the blade and the blade frame and of facilitating positioning during mounting.

また、羽根と羽根フレームの取り付け作業性を向上できるという効果のある送風装置を提供できる。   In addition, it is possible to provide an air blowing device having an effect of improving the workability of attaching the blade and the blade frame.

本発明の請求項１記載の発明は、アウターローター型電動機のローターに設けられる複数の羽根フレームと、この羽根フレームに固定される複数の板状の羽根とを備え、前記羽根は水平面で回転するとともに、ひねり角度を６度〜１４度に構成したものであり、羽根の外周に向かうに従い風速が大きくなるので、羽根のひねり角度（羽根根元から羽根先端の取付角度差）を大とすることで、ひねり角度０度に比べて効率良く羽根の仕事を行なうことができ、ひねり角度が６度〜１５度の範囲では、天井から羽根までの距離が１７０ｍｍと近い場合でも送風性態を発揮できるという作用を有する。   A first aspect of the present invention includes a plurality of blade frames provided on a rotor of an outer rotor type electric motor, and a plurality of plate-like blades fixed to the blade frames, and the blades rotate on a horizontal plane. In addition, the twist angle is 6 degrees to 14 degrees, and the wind speed increases toward the outer periphery of the blade. Therefore, by increasing the twist angle of the blade (the mounting angle difference from the blade root to the blade tip) Compared with a twist angle of 0 degrees, the blades can work efficiently, and when the twist angle is in the range of 6 degrees to 15 degrees, the air blowing property can be exhibited even when the distance from the ceiling to the blades is as short as 170 mm. Has an effect.

また、請求項２記載の発明は、板状羽根の根元の取付角を１５度以下としたものであり、羽根と天井との間隔を狭くすると、吸い込む空間が小さくなり、羽根自体の送風特性により羽根と天井の距離を縮めることができないが、羽根の根元の取付角を１５度以下にすることにより、羽根の根元部分での空気をかき回すだけの負荷を減らし、ひねり角度を大きくした羽根部分で送風機能を発揮して天井から羽根までの間隔が狭い場合でも、直下に送風することができるという作用を有する。   Further, the invention according to claim 2 is such that the base mounting angle of the plate-shaped blade is set to 15 degrees or less, and if the interval between the blade and the ceiling is narrowed, the space to be sucked becomes small, and the air blowing characteristics of the blade itself Although the distance between the blade and the ceiling cannot be reduced, by reducing the load at which the blade root is installed by reducing the blade mounting angle to 15 degrees or less, the blade portion has a larger twist angle. Even when the air blowing function is exhibited and the distance from the ceiling to the blades is narrow, the air can be blown directly below.

また、請求項３記載の発明は、投影形状を根元幅から先端幅まで単一幅形状とするとともに、羽根の根元から羽根全長の５０〜７５％の範囲で反り率８％以上に形成し、全長の０〜５０％および７５〜１００％の範囲で反り率８％未満としたものであり、羽根の根元幅と先端幅がほぼ単一幅の羽根であるため、羽根の根元部の剛性が強くなり、かつ全長の５０％付近と７５％付近の反り率８％未満の領域でも送風能力を維持して風量を確保し、根元以外は形状変化が滑らかであり風の乱れの少ない羽根とすることができるという作用を有する。   In addition, the invention according to claim 3 forms the projection shape with a single width shape from the root width to the tip width, and forms a warping rate of 8% or more in the range of 50 to 75% of the blade total length from the root of the blade, The warp rate is less than 8% in the range of 0 to 50% and 75 to 100% of the total length, and the blade root width and tip width are almost single width blades. Even in areas where the warp rate is less than 8% around 50% and 75% of the total length, the air flow is maintained and the air volume is secured, and the blades have a smooth shape change except for the root and have less wind turbulence. It has the effect of being able to.

また、請求項４記載の発明は、羽根の根元の反り率を０に近い略平面とし、羽根根元から羽根長さ５０％の範囲までを徐々に反り率８％まで大きく形成したものであり、羽根の根元部の曲率を大きくし、反り率を小さくすることで、平坦な形状としていることにより、羽根根元の肉厚を薄くすることができ、羽根の軽量化とともに、回転時の負荷も削減できる。また、羽根根元では反り率をできるだけ小さくし、根元から長さ範囲５０％で反り率８％まで徐々に大きくすることで、羽根の急激な変形を抑え、羽根の根元部にかかる内部応力の集中を防ぐとともに、送風性能を発揮しつつ羽根面の滑らかな外観形状を維持してデザイン性も向上することができるという作用を有する。   Further, the invention according to claim 4 is configured such that the warp rate at the base of the blade is a substantially flat surface close to 0, and gradually increases from the blade root to the blade length range of 50% to a warp rate of 8%. By increasing the curvature at the base of the blade and reducing the warpage, it is possible to reduce the thickness of the blade root by reducing the thickness of the blade root and reducing the load during rotation. it can. Also, by reducing the warp rate as much as possible at the blade root and gradually increasing the warp rate to 8% within the length range of 50% from the root, rapid deformation of the blade is suppressed and concentration of internal stress applied to the blade root portion In addition, the design can be improved while maintaining the smooth appearance of the blade surface while exhibiting air blowing performance.

また、請求項５記載の発明は、羽根の根元付近に補強リブを設け、前記補強リブを覆うように先端幅小なる羽根フレームを嵌合するとともに、前記フレームの先端部に沿う外周リブを立設したものであり、羽根の表面にフレームに沿うように外周リブを設けることで、羽根とフレームが一体化しやすく、取付時においても位置決めが容易となり、また、羽根の補強リブは回転時の空気抵抗となるが、補強用リブが外周リブ内側に隠れる構造とすることにより、空気抵抗を抑制することができるという作用を有する。   According to a fifth aspect of the present invention, a reinforcing rib is provided near the base of the blade, a blade frame having a small tip width is fitted so as to cover the reinforcing rib, and an outer peripheral rib extending along the tip portion of the frame is provided. By providing an outer peripheral rib along the frame on the surface of the blade, the blade and the frame can be easily integrated, and positioning is easy even during mounting. Although it becomes resistance, it has the effect | action that air resistance can be suppressed by setting it as the structure where a reinforcing rib is hidden inside an outer periphery rib.

また、請求項６記載の発明は、羽根フレームに逆取付防止用の挿入孔を設け、前記挿入孔に対応する突起部を羽根の補強リブに設けたものであり、羽根フレームの逆付け防止が行なわれるとともに、羽根の裏面に成形時にひけが発生しないようにでき、また羽根フレームと羽根をねじで固定するときに、羽根フレームの内側へのずれを防止して取り付け作業性を向上することができるという作用を有する。   In the invention according to claim 6, the blade frame is provided with an insertion hole for preventing reverse mounting, and a protrusion corresponding to the insertion hole is provided in the reinforcing rib of the blade, thereby preventing the blade frame from being reversed. In addition, it is possible to prevent sink marks on the back surface of the blade during molding, and when the blade frame and the blade are fixed with screws, it is possible to prevent the blade frame from being displaced inward and to improve the mounting workability. Has the effect of being able to.

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

（実施の形態１）
図１〜図１１に示すように、アウターローター型電動機１を天井２に取り付ける取付台３を天井２に設け形成した本体部分４と、本体部分４のアウターローター型電動機１のローター５に設けられる複数の羽根フレーム６と、羽根フレーム６に固定される複数の板状の羽根７とを備えている。羽根７は水平面で回転するとともに、羽根７の根元８から羽根７の先端９の取付角度差となるひねり角度を６度〜１４度に設け、羽根７の根元８の取付角度を１５度以下に設けている。 (Embodiment 1)
As shown in FIG. 1 to FIG. 11, a main body part 4 in which a mounting base 3 for attaching the outer rotor type electric motor 1 to the ceiling 2 is provided on the ceiling 2, and a rotor 5 of the outer rotor type electric motor 1 of the main body part 4. A plurality of blade frames 6 and a plurality of plate-like blades 7 fixed to the blade frames 6 are provided. The blade 7 rotates in a horizontal plane, and a twist angle that is a difference in mounting angle from the root 8 of the blade 7 to the tip 9 of the blade 7 is set to 6 degrees to 14 degrees, and the mounting angle of the root 8 of the blade 7 is set to 15 degrees or less. Provided.

また、羽根７の根元の幅１０から先端の幅１１まで単一幅形状とするとともに、羽根７の根元８から羽根全長の５０〜７５％の範囲で反り率８％以上に形成し、全長の０〜５０％の範囲および７５〜１００％の範囲で反り率８％未満に形成し、羽根７の根元８の反り率を０に近い略平面とし、羽根７の根元８から羽根７の長さの５０％範囲までを徐々に反り率を８％まで大きく形成する。   The blade 7 has a single width shape from the root width 10 to the tip width 11 and is formed to have a warpage rate of 8% or more in the range of 50 to 75% of the blade total length from the blade 8 root. The warp rate is less than 8% in the range of 0 to 50% and 75 to 100%, the warp rate of the root 8 of the blade 7 is a substantially flat surface close to 0, and the length of the blade 7 from the root 8 of the blade 7 The warp rate is gradually increased up to 8% up to the 50% range.

また、羽根７の根元８付近に、羽根７の樹脂成形時に一体的に補強リブ１２を設け、補強リブ１２を覆うように先端幅が小なる羽根フレーム６を嵌合するとともに、羽根フレーム６の周囲に沿う突状の外周リブ１３を羽根７の樹脂成形時に補強リブ１２とともに一体に設け、羽根フレーム６に逆取付防止用の挿入孔１４を設け、挿入孔１４に対応する突起部１５を羽根７の補強リブ１２上に設けた構成とする。   Further, a reinforcing rib 12 is integrally provided near the base 8 of the blade 7 when the blade 7 is resin-molded, and a blade frame 6 having a small tip width is fitted so as to cover the reinforcing rib 12. Protruding outer peripheral ribs 13 along the periphery are integrally provided together with the reinforcing ribs 12 during resin molding of the blades 7, an insertion hole 14 for preventing reverse mounting is provided in the blade frame 6, and the protrusions 15 corresponding to the insertion holes 14 are provided as blades. 7 is provided on the reinforcing rib 12.

上記構成において、実験の結果、図２に示すように羽根７のひねり角度がないＢの状態では、天井２から羽根７までの距離Ｌが１７０ｍｍになると風速はほとんど０となり、風速０．５ｍ／ｓを得るには天井２から羽根７までの距離が２００ｍｍを必要とするものであるのに対し、羽根７のひねり角度を１０度としたＡの状態では、天井２から羽根７までの距離を１７０ｍｍとした場合においては、略風速０．６ｍ／ｓを得ることができ、天井２から羽根７までの距離１７０ｍｍ以上では直下への風速を確保することができるものである。   In the above configuration, as a result of the experiment, as shown in FIG. 2, in the state B where the blade 7 has no twist angle, the wind speed becomes almost 0 when the distance L from the ceiling 2 to the blade 7 is 170 mm, and the wind speed is 0.5 m / In order to obtain s, the distance from the ceiling 2 to the blade 7 requires 200 mm, whereas in the state A where the twist angle of the blade 7 is 10 degrees, the distance from the ceiling 2 to the blade 7 is In the case of 170 mm, a substantially wind speed of 0.6 m / s can be obtained, and when the distance from the ceiling 2 to the blade 7 is 170 mm or more, the wind speed directly below can be secured.

また、羽根７のひねり角度を６度〜１４度の範囲では、図３に示すように、天井２から羽根７までの距離Ｌが１７０ｍｍと近い場合においても送風性能を発揮することができることとなる。   In addition, when the twist angle of the blade 7 is in the range of 6 degrees to 14 degrees, as shown in FIG. 3, even when the distance L from the ceiling 2 to the blade 7 is close to 170 mm, the air blowing performance can be exhibited. .

また、羽根７と天井２との間隔Ｌを１７０ｍｍ以下に狭くすると、吸い込む空間が小さくなり、ひねり角度を１０度に設定しても根元取付角度によっては、羽根７自体に吸込時の大きな空気抵抗が発生して送風能力が急激に低下するため、羽根７と天井２の距離Ｌを縮めた所での使用が困難となるが、図４に示すように、根元８の取付角度を１５度以下とすることにより、安定した風速を得ることができる。このように羽根７の根元８の取付角度を１５度以下とすることにより、羽根７の根元８部分での空気をかき回すだけの負荷を減らし、ひねり角度を大とした羽根７部分で送風機能を発揮して、天井２から羽根７までの間隔が狭い場合でも送風装置の直下に安定して送風することができる。   Moreover, if the space | interval L of the blade | wing 7 and the ceiling 2 is narrowed to 170 mm or less, the space to suck in will become small, and even if the twist angle is set to 10 degrees, depending on the root mounting angle, the large air resistance at the time of suction to the blade 7 itself Is generated and the air blowing capability is rapidly reduced, so that it is difficult to use the blade 7 and the ceiling 2 at a reduced distance L. However, as shown in FIG. By doing so, a stable wind speed can be obtained. In this way, by setting the mounting angle of the base 8 of the blade 7 to 15 degrees or less, the load of just stirring the air at the base 8 portion of the blade 7 is reduced, and the air blowing function is provided by the blade 7 portion having a large twist angle. Demonstrating that even if the distance from the ceiling 2 to the blades 7 is narrow, the air can be stably blown directly below the blower.

また、投影形状を羽根７の根元の幅１０から先端の幅１１まで単一幅形状とするとともに、羽根７の根元８から羽根全長の５０〜７５％の範囲で反り率８％以上に形成し、全長の０〜５０％の範囲および７５〜１００％の範囲で反り率８％未満としたもので、本実施の形態では、図５〜図８に示すように、羽根７の長さの６４．４％の位置では反り率８．５％となり、羽根７の長さの０％の位置では反り率１．７％となり、羽根７の長さの９７．１％の位置では反り率５．８％となる羽根形状としている。   The projected shape is a single width shape from the root width 10 of the blade 7 to the width 11 of the tip, and the warp rate is 8% or more in the range of 50 to 75% of the blade total length from the root 8 of the blade 7. In this embodiment, the warp rate is less than 8% in the range of 0 to 50% and 75 to 100% of the total length. In this embodiment, as shown in FIGS. The warp rate is 8.5% at the position of 0.4%, the warp rate is 1.7% at the position of 0% of the length of the blade 7, and the warp rate of 5.7.1% at the position of 97.1% of the length of the blade 7. The blade shape is 8%.

そして、羽根７は、羽根７の根元の幅１０と先端の幅１１がほぼ同一幅の羽根７であることにより、羽根７の根元８の剛性が強くなり、かつ全長の５０％付近と７５％付近の反り率８％未満の領域でも送風能力を維持して風量を確保し、根元８以外は形状変化が滑らかであって風の乱れの少ない羽根７を得ることができる。   The vane 7 has the same width as the vane 7 at the root width 10 and the tip width 11 of the vane 7, thereby increasing the rigidity of the root 8 of the vane 7 and about 50% and 75% of the total length. Even in the vicinity of the region where the warpage rate is less than 8%, the air flow is maintained and the air volume is secured, and the blades 7 other than the root 8 are smooth in shape change and less turbulent in the wind.

また、羽根７の根元８の反り率を０に近い１．７％として、羽根７の根元８から羽根７の長さの５０％の範囲までを徐々に反り率８％まで大きく形成したことにより、略平坦な形状となり、羽根７の根元８の肉厚を薄くすることができ、羽根７の軽量化とともに、回転時の負荷を削減できる。さらに羽根７の根元８では反り率をできるだけ小さくし根元８からの長さ範囲５０％で反り率を８％まで徐々に大きくすることで、羽根７の急激な変形を抑え、羽根７の根元８にかかる内部応力の集中するのを防ぐとともに、送風性能を発揮しつつ羽根７の面が滑らかな外観形状を維持してデザイン性も向上することができることとなる。   Further, the warp rate of the base 8 of the blade 7 is set to 1.7% close to 0, and the warp rate is gradually increased to 8% from the base 8 of the blade 7 to the range of 50% of the length of the blade 7. Thus, it becomes a substantially flat shape, the thickness of the base 8 of the blade 7 can be reduced, the weight of the blade 7 can be reduced, and the load during rotation can be reduced. Further, the base 8 of the blade 7 has a warp rate as small as possible, and the warp rate is gradually increased to 8% in a length range from the base 8 to 50%, thereby suppressing rapid deformation of the blade 7 and the base 8 of the blade 7. In addition to preventing the concentration of internal stress on the surface, the surface of the blade 7 can be maintained in a smooth appearance while exhibiting air blowing performance, and the design can be improved.

また、羽根７の根元８付近に補強リブ１２を設け、補強リブ１２を覆うように先尖りまたは先端幅小なる羽根フレーム６を嵌合するとともに、羽根フレーム６の先端部に沿う外周リブ１３を立設したので、羽根７と羽根フレーム６が一体化しやすく、取付時においても位置決めが容易となる。さらに羽根７の補強リブ１２は回転時に多少の空気抵抗を生ずるものであるが、補強リブ１２が外周リブ１３の内側に隠れることとなり、空気抵抗を低く抑制することができることとなる。   Further, a reinforcing rib 12 is provided in the vicinity of the root 8 of the blade 7, and a blade frame 6 having a tip or a small tip width is fitted so as to cover the reinforcing rib 12, and an outer peripheral rib 13 along the tip of the blade frame 6 is provided. Since it is erected, the blades 7 and the blade frame 6 are easily integrated, and positioning is easy even during mounting. Further, the reinforcing ribs 12 of the blades 7 generate some air resistance during rotation, but the reinforcing ribs 12 are hidden inside the outer peripheral ribs 13, and the air resistance can be suppressed low.

また、羽根フレーム６に逆取付防止用の挿入孔１４を設け、挿入孔１４に対応する突起部１５を羽根７の補強リブ１２に設けたので、羽根フレーム６の逆取付を未然に防止するとともに、羽根７の下面に樹脂成形時のひけの発生を防いでデザイン性を保ち、さらに羽根フレーム６と羽根７をねじで固定するときに、羽根フレーム６の内側へずれないように仮固定して取り付け作業性を向上することができることとなる。   Further, since the insertion frame 14 for preventing reverse attachment is provided in the blade frame 6 and the protrusion 15 corresponding to the insertion hole 14 is provided in the reinforcing rib 12 of the blade 7, the reverse attachment of the blade frame 6 is prevented in advance. The bottom surface of the blade 7 is prevented from sinking during resin molding to maintain the design, and when the blade frame 6 and the blade 7 are fixed with screws, they are temporarily fixed so as not to shift to the inside of the blade frame 6. Mounting workability can be improved.

天井と羽根との距離を短くした送風装置の本体部分に照明器を取り付けることにより、照明器を天井面に近接して設置できる天井扇の用途にも適用できる。   By attaching the illuminator to the main body portion of the blower in which the distance between the ceiling and the blades is shortened, the illuminator can be applied to a ceiling fan that can be installed close to the ceiling surface.

本発明の実施の形態１の送風装置を天井に取り付けた状態を示す側面図The side view which shows the state which attached the air blower of Embodiment 1 of this invention to the ceiling 同送風装置の天井から羽根までの距離と風速の関係を示す特性図Characteristic diagram showing the relationship between the distance from the ceiling to the blades of the blower and the wind speed 同送風装置の羽根のひねり角度と風速の関係を示す特性図Characteristic diagram showing the relationship between the twist angle of the blades of the air blower and the wind speed 同送風装置の羽根の根元取付角と風速の関係を示す特性図Characteristic diagram showing the relationship between the blade base mounting angle and the wind speed of the blower 同送風装置の羽根の正面図Front view of the blades of the blower 同送風装置の羽根長さの６４．４％の位置の羽根の断面図Cross-sectional view of the blade at a position of 64.4% of the blade length of the blower 同送風装置の羽根長さの０％の位置の羽根の断面図Cross-sectional view of the blade at 0% of the blade length of the blower 同送風装置の羽根長さの９７．１％の位置の羽根の断面図Cross-sectional view of the blade at 97.1% of the blade length of the blower 同送風装置の羽根の正面図Front view of the blades of the blower 同送風装置の羽根に羽根フレームを取り付けた状態を示す正面図The front view which shows the state which attached the blade | wing frame to the blade | wing of the air blower 同送風装置の羽根に羽根フレームを取り付けた状態を示す斜視図The perspective view which shows the state which attached the blade | wing frame to the blade | wing of the air blower 従来の天井扇の天井に取り付けた状態を示す側面図Side view showing a state where it is attached to the ceiling of a conventional ceiling fan 同天井扇の断面図Cross section of the ceiling fan

符号の説明Explanation of symbols

１ アウターローター型電動機
５ ローター
６ 羽根フレーム
７ 羽根
８ 根元
９ 先端
１０ 根元の幅
１１ 先端の幅
１２ 補強リブ
１３ 外周リブ
１４ 挿入孔
１５ 突起部 DESCRIPTION OF SYMBOLS 1 Outer rotor type electric motor 5 Rotor 6 Blade frame 7 Blade 8 Root 9 Tip 10 Width of base 11 Width of tip 12 Reinforcement rib 13 Outer peripheral rib 14 Insertion hole 15 Projection

Claims (6)

アウターローター型電動機のローターに設けられる複数の羽根フレームと、この羽根フレームに固定される複数の板状の羽根とを備え、前記羽根は水平面で回転するとともに、ひねり角度を６度〜１４度に構成した送風装置。 A plurality of blade frames provided on the rotor of the outer rotor type electric motor, and a plurality of plate-like blades fixed to the blade frame, the blades rotate on a horizontal plane and have a twist angle of 6 degrees to 14 degrees. Constructed blower. 板状羽根の根元の取付角度を１５度以下とした請求項１記載の送風装置。 The air blower according to claim 1, wherein the mounting angle at the base of the plate-like blade is 15 degrees or less. 投影形状を根元幅から先端幅まで単一幅形状とするとともに、羽根の根元から羽根全長の５０〜７５％の範囲で反り率８％以上に形成し、全長の０〜５０％および７５〜１００％の範囲で反り率８％未満とした請求項１または２記載の送風装置。 The projected shape is a single width shape from the root width to the tip width, and the warp rate is 8% or more in the range of 50 to 75% of the blade total length from the blade root to 0 to 50% and 75 to 100% of the total length. The blower according to claim 1 or 2, wherein a warpage rate is less than 8% in a range of%. 羽根の根元の反り率を０に近い略平面とし、羽根根元から羽根長さ５０％の範囲までを徐々に反り率を８％まで大きく形成した請求項３記載の送風装置。 The air blower according to claim 3, wherein the warp rate at the base of the blade is a substantially flat surface close to 0, and the warp rate is gradually increased to 8% from the blade root to the blade length range of 50%. 羽根の根元付近に補強リブを設け、前記補強リブを覆うように先端幅小なる羽根フレームを嵌合するとともに、前記羽根フレームの先端部に沿う外周リブを立設した請求項１〜４のいずれかに記載の送風装置。 The reinforcing rib is provided near the root of the blade, the blade frame having a small tip width is fitted so as to cover the reinforcing rib, and the outer peripheral rib along the tip portion of the blade frame is erected. A blower according to the above. 羽根フレームに逆取付防止用の挿入孔を設け、前記挿入孔に対応する突起部を羽根の補強リブに設けた請求項５記載の送風装置。 The air blower according to claim 5, wherein an insertion hole for preventing reverse attachment is provided in the blade frame, and a protrusion corresponding to the insertion hole is provided in the reinforcing rib of the blade.
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USD957619S1 (en) 2018-07-10 2022-07-12 Hunter Fan Company Ceiling fan blade
USD957617S1 (en) 2018-07-10 2022-07-12 Hunter Fan Company Ceiling fan blade
USD880682S1 (en) 2018-07-10 2020-04-07 Hunter Fan Company Ceiling fan blade
US11566633B2 (en) 2018-07-10 2023-01-31 Hunter Fan Company Ceiling fan blade
USD980408S1 (en) 2018-07-10 2023-03-07 Hunter Fan Company Ceiling fan blade
USD880680S1 (en) 2018-07-10 2020-04-07 Hunter Fan Company Ceiling fan blade
USD880684S1 (en) 2018-07-10 2020-04-07 Hunter Fan Company Ceiling fan blade
US11927196B2 (en) 2018-07-10 2024-03-12 Hunter Fan Company Ceiling fan blade

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