JPH0849697A - Fan - Google Patents
FanInfo
- Publication number
- JPH0849697A JPH0849697A JP18448394A JP18448394A JPH0849697A JP H0849697 A JPH0849697 A JP H0849697A JP 18448394 A JP18448394 A JP 18448394A JP 18448394 A JP18448394 A JP 18448394A JP H0849697 A JPH0849697 A JP H0849697A
- Authority
- JP
- Japan
- Prior art keywords
- hub
- fan
- axial
- fitted
- bent
- 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.)
- Granted
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、ファンに関し、詳し
くは、輸送時の積み重ね状態の安定化が図られたファン
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan, and more particularly to a fan whose stacking state is stabilized during transportation.
【０００２】[0002]
【従来の技術】一般に、ファンを輸送する場合には、図
５に示すように、通い箱５１の中にファン５２,５２,５
２…を縦積みにして輸送する。従って、輸送時の振動に
よってファン５２,５２,５２…の縦積みの状態がずれる
ことがある。すると、上下のファン５２,５２の羽根５
３と羽根５３が衝突したり、羽根５３とハブ５４が衝突
したりして、ファン５２に傷や破損が発生することがあ
るという問題がある。2. Description of the Related Art Generally, when transporting a fan, as shown in FIG.
Transport 2 ... vertically. Therefore, the vertical stacking state of the fans 52, 52, 52, ... May shift due to vibration during transportation. Then, the blades 5 of the upper and lower fans 52, 52
3 and the blades 53 collide with each other, or the blades 53 and the hub 54 collide with each other, so that the fan 52 may be damaged or damaged.
【０００３】そこで、従来、上記輸送中のずれ防止のた
めに、ファンのハブに径方向に突き出している突起やリ
ブを設けて、この突起やリブに上記ファンの上のファン
のハブを嵌合させることによって、上記縦積み状態のず
れを防止するようにしている(特開平３−１５６１９６
号参照)。Therefore, conventionally, in order to prevent the deviation during the transportation, a protrusion or a rib protruding in the radial direction is provided on the hub of the fan, and the protrusion or the rib is fitted to the hub of the fan above the fan. By doing so, the shift of the vertically stacked state is prevented (Japanese Patent Laid-Open No. 3-156196).
No.).
【０００４】[0004]
【発明が解決しようとする課題】ところが、上記従来の
ファンでは、上記ハブから径方向外方に突起やリブが突
き出しているので、この突起やリブが回転時の流体の流
れを乱したり、流路面積を減少させる。したがって、上
記従来のファンでは、空力性能の低下や騒音の上昇を招
くことがあるという問題がある。However, in the above-mentioned conventional fan, since the projections and ribs project radially outward from the hub, the projections and ribs disturb the flow of fluid during rotation, Reduce the flow path area. Therefore, the conventional fan described above has a problem that the aerodynamic performance may be deteriorated and the noise may be increased.
【０００５】そこで、この発明の目的は、空力性能の低
下や騒音の上昇を招くことなく、輸送中の縦積みの状態
がずれることを防止できるファンを提供することにあ
る。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fan which can prevent the vertical stacking state during transportation from deviating without lowering aerodynamic performance and increasing noise.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、請求項１の発明のファンは、略円錐台あるいは角錐
台形のハブ部と、このハブ部から径方向外方へ向かって
延びている複数の羽根とを備えるファンにおいて、上記
ハブ部は、軸方向前方から軸方向後方に向かって径方向
外方へ広がっている傾斜部と、上記傾斜部の周方向の端
から径方向内方へ折れ曲がっている折れ曲がり部と、上
記羽根の後方に位置し、かつ上記傾斜部から周方向に連
なり、かつ軸方向前方から軸方向後方に向かってハブ部
の軸芯に対して略平行に延び、かつ上記折れ曲がり部に
或る角をなして周方向に接続されているストレート部
と、上記折れ曲がり部とストレート部とが接続されてい
る部分の軸方向後端の係合部と同じ形状の物が嵌合で
き、上記ハブ部の軸方向の前端部に形成された窪み部と
を備え、上記窪み部は、この窪み部に別のファンのハブ
部の軸方向後端の係合部を嵌めたときに、両ハブ部の羽
根が両ハブ部の重ね合わせの障害とならないような周方
向の位置に設けられていることを特徴としている。In order to achieve the above object, the fan according to the invention of claim 1 has a hub portion having a substantially truncated cone shape or a truncated pyramid shape, and extends radially outward from the hub portion. In a fan including a plurality of blades, the hub portion includes an inclined portion that extends radially outward from an axial front side toward an axial rear side, and a radial inward direction from a circumferential end of the inclined portion. A bent portion that is bent, is located behind the blade, is continuous from the inclined portion in the circumferential direction, and extends substantially parallel to the axial center of the hub portion from the axial front side to the axial rear side, and An object having the same shape as the straight portion which is connected to the bent portion at a certain angle in the circumferential direction and the engaging portion at the axial rear end of the portion where the bent portion and the straight portion are connected is fitted. Axial direction of the above hub part And a recess formed in the front end portion, wherein the recess portion has a blade of both hub portions when the engagement portion of the axial rear end of the hub portion of another fan is fitted into the recess portion. It is characterized in that it is provided at a position in the circumferential direction that does not hinder the superposition of parts.
【０００７】また、請求項２の発明のファンは、略円錐
台あるいは角錐台形のハブ部と、このハブ部から径方向
外方へ向かって延びている複数の羽根とを備えるファン
において、上記ハブ部は、軸方向前方から軸方向後方に
向かって径方向外方へ広がっている傾斜部と、上記傾斜
部の周方向の端から径方向内方へ折れ曲がっている折れ
曲がり部と、上記折れ曲がり部の周方向の端かつ軸方向
後端の係合部と同じ形状の物が嵌合でき、上記ハブ部の
軸方向の前端部に形成された窪み部とを備え、上記窪み
部は、この窪み部に別のファンのハブ部の軸方向後端の
係合部を嵌めたときに、両ハブ部の羽根が両ハブ部の重
ね合わせの障害とならないような周方向の位置に設けら
れていることを特徴としている。A fan according to a second aspect of the invention is a fan including a hub portion having a substantially truncated cone shape or a truncated pyramid shape, and a plurality of blades extending radially outward from the hub portion. The portion includes an inclined portion that extends radially outward from the front in the axial direction toward the rear in the axial direction, a bent portion that bends inward in the radial direction from a circumferential end of the inclined portion, and a portion of the bent portion. An article having the same shape as the engagement portion at the end in the circumferential direction and the rear end in the axial direction can be fitted, and includes a dent portion formed at the front end portion in the axial direction of the hub portion, and the dent portion is the dent portion. The blades of both hub parts are provided at circumferential positions so as not to hinder the superposition of both hub parts when the engaging part at the axial rear end of the hub part of another fan is fitted in Is characterized by.
【０００８】また、請求項３の発明のファンは、略円錐
台あるいは角錐台形のハブ部と、このハブ部から径方向
外方へ向かって延びている複数の羽根とを備えるファン
において、上記ハブ部は、軸方向前方から軸方向後方に
向かって径方向外方へ広がっている傾斜部と、上記羽根
の後方に位置し、かつ上記傾斜部から周方向に連なり、
かつ、軸方向前方から軸方向後方に向かってハブ部の軸
芯に対して略平行に延びているストレート部と、上記ス
トレート部の周方向の端かつ軸方向後端の係合部と同じ
形状の物が嵌合でき、上記ハブ部の軸方向の前端部に形
成された窪み部とを備え、上記窪み部は、この窪み部に
別のファンのハブ部の軸方向後端の係合部を嵌めたとき
に、両ハブ部の羽根が両ハブ部の重ね合わせの障害とな
らないような周方向の位置に設けられていることを特徴
としている。A fan according to a third aspect of the present invention is a fan including a hub portion having a substantially truncated cone shape or a truncated pyramid shape, and a plurality of blades extending radially outward from the hub portion. The portion is located at the rear of the blade and extends in the radial direction outward from the front in the axial direction toward the rear in the axial direction, and is continuous in the circumferential direction from the inclined portion.
And a straight portion extending from the front in the axial direction toward the rear in the axial direction substantially in parallel to the axis of the hub portion, and the same shape as the circumferential end of the straight portion and the engaging portion at the rear end in the axial direction. And a recess formed in the front end portion of the hub portion in the axial direction, the recess portion being the engagement portion at the axial rear end of the hub portion of another fan. When the blades are fitted, the blades of both hub portions are provided at circumferential positions that do not hinder the superposition of both hub portions.
【０００９】[0009]
【作用】請求項１の発明のファンは、縦積みするとき
に、ハブ部の軸方向の前端部に形成された窪み部に、そ
の上に縦積みする別のファンのハブ部の軸方向後端の係
合部を嵌合できる。したがって、上記係合部と上記窪み
部との嵌合によって、輸送中に縦積み状態が崩れること
を防止できる。According to the fan of the first aspect of the present invention, when vertically stacking, the axial rear portion of the hub portion of another fan to be vertically stacked on the recess portion formed at the front end portion of the hub portion in the axial direction. The engaging portion at the end can be fitted. Therefore, it is possible to prevent the vertically stacked state from collapsing during transportation due to the fitting of the engaging portion and the recess.
【００１０】一方、上記折れ曲がり部および上記ストレ
ート部は、上記ハブ部の傾斜部よりも径方向内方に有る
から、回転時に上記折れ曲がり部とストレート部が流体
の流れを乱すことがなく、かつ、流路面積を減少させる
ことがない。したがって、回転時の空力性能の低下や騒
音の上昇を招くことがない。On the other hand, since the bent portion and the straight portion are located radially inward of the inclined portion of the hub portion, the bent portion and the straight portion do not disturb the flow of fluid during rotation, and It does not reduce the flow passage area. Therefore, deterioration of aerodynamic performance and increase of noise during rotation are not caused.
【００１１】したがって、この発明のファンによれば、
回転時に空力性能の低下や騒音の上昇を招くことなく、
輸送中の縦積みの状態が崩れることを防止でき、ファン
に傷が付くことおよびファンの破損を防止できる。Therefore, according to the fan of the present invention,
Without lowering aerodynamic performance and increasing noise during rotation,
It is possible to prevent the state of vertical stacking during transportation from collapsing, and to prevent damage to the fan and damage to the fan.
【００１２】また、請求項１の発明によれば、上記スト
レート部が羽根の後方に位置しているから、上記ストレ
ート部は成形時の金型抜き部をなしている。言い換えれ
ば、この発明によれば、上記ストレート部が、軸芯に平
行に延びる成形時に必要な金型抜き部を兼ねることがで
きる。Further, according to the first aspect of the present invention, since the straight portion is located at the rear of the blade, the straight portion serves as a die removing portion at the time of molding. In other words, according to the present invention, the straight portion can also serve as a die-cutting portion that extends in parallel with the axis and is required during molding.
【００１３】また、請求項１の発明によれば、上記折れ
曲がり部とストレート部の両方を備えているので、この
折れ曲がり部とストレート部とがハブ部を補強する役目
を果たす。したがって、請求項１の発明によれば、ハブ
部の機械的強度を向上させることができる。Further, according to the invention of claim 1, since both of the bent portion and the straight portion are provided, the bent portion and the straight portion serve to reinforce the hub portion. Therefore, according to the invention of claim 1, the mechanical strength of the hub portion can be improved.
【００１４】また、請求項２の発明のファンは、縦積み
するときに、ハブ部の軸方向の前端部に形成された窪み
部に、その上に縦積みする別のファンのハブ部の軸方向
後端の係合部を嵌合できる。したがって、上記係合部と
窪み部との嵌合によって、輸送中に縦積み状態が崩れる
ことを防止できる。According to the fan of the second aspect of the present invention, when vertically stacked, the shaft of the hub portion of another fan vertically stacked on the hollow portion formed at the front end portion in the axial direction of the hub portion. The engaging portion at the rear end in the direction can be fitted. Therefore, it is possible to prevent the vertically stacked state from collapsing during transportation due to the fitting of the engaging portion and the recessed portion.
【００１５】一方、上記折れ曲がり部は、上記ハブ部の
傾斜部よりも径方向内方にあるから、回転時に上記折れ
曲がり部が流体の流れを乱すことがなく、かつ、流路面
積を減少させることがない。したがって、空力性能の低
下や騒音の上昇を招くことがない。On the other hand, since the bent portion is located radially inward of the inclined portion of the hub portion, the bent portion does not disturb the flow of the fluid during rotation, and the flow passage area is reduced. There is no. Therefore, the aerodynamic performance is not deteriorated and the noise is not increased.
【００１６】したがって、この発明のファンによれば、
回転時に空力性能の低下や騒音の上昇を招くことなく、
輸送中の縦積みの状態が崩れることを防止でき、ファン
の傷付きおよびファンの破損を防止できる。Therefore, according to the fan of the present invention,
Without lowering aerodynamic performance and increasing noise during rotation,
It is possible to prevent the state of vertical stacking during transportation from collapsing, and to prevent damage and damage to the fan.
【００１７】また、請求項３の発明は、縦積みするとき
に、ハブ部の軸方向の前端部に形成された窪み部に、そ
の上に縦積みする別のファンのハブ部の軸方向後端の係
合部を嵌合できる。したがって、上記係合部と窪み部と
の嵌合によって、輸送中に縦積み状態が崩れることを防
止できる。According to the third aspect of the present invention, when stacking vertically, a hollow portion formed on the front end portion in the axial direction of the hub portion is axially rearward of the hub portion of another fan to be vertically stacked thereon. The engaging portion at the end can be fitted. Therefore, it is possible to prevent the vertically stacked state from collapsing during transportation due to the fitting of the engaging portion and the recessed portion.
【００１８】一方、上記ストレート部は、上記ハブ部の
傾斜部よりも径方向内方にあるから、回転時に上記スト
レート部が流体の流れを乱すことがなく、かつ、流路面
積を減少させることがない。したがって、空力性能の低
下や騒音の上昇を招くことがない。On the other hand, since the straight portion is located radially inward of the inclined portion of the hub portion, the straight portion does not disturb the flow of fluid during rotation, and the flow passage area is reduced. There is no. Therefore, the aerodynamic performance is not deteriorated and the noise is not increased.
【００１９】従って、この発明のファンによれば、回転
時に空力性能の低下や騒音の上昇を招くことなく、輸送
中の縦積みの状態が崩れることを防止でき、ファンの傷
付きおよびファンの破損を防止できる。Therefore, according to the fan of the present invention, it is possible to prevent the vertical stacking state from collapsing during transportation without lowering the aerodynamic performance and increasing the noise during rotation, and to damage the fan and damage the fan. Can be prevented.
【００２０】また、請求項３の発明によれば、上記スト
レート部が羽根の後方に位置しているから、上記ストレ
ート部が成形時に必要な金型抜き部を兼ねることができ
る。Further, according to the third aspect of the invention, since the straight portion is located at the rear of the blade, the straight portion can also serve as a die removing portion necessary for molding.
【００２１】[0021]
【実施例】以下、この発明を図示の実施例により詳細に
説明する。The present invention will be described in detail below with reference to the embodiments shown in the drawings.
【００２２】図１(Ａ)に本発明のファンの実施例を斜め
後方から見た様子を示し、図１(Ｂ)に上記実施例を斜め
前方から見た様子を示す。また、図２に上記実施例を後
方から見た様子を示し、図３に上記実施例を側方から見
た様子を示す。FIG. 1 (A) shows an embodiment of the fan of the present invention as seen obliquely from the rear, and FIG. 1 (B) shows the above embodiment as seen from the oblique front. Further, FIG. 2 shows a state in which the above-mentioned embodiment is viewed from the rear, and FIG. 3 shows a state in which the above-mentioned embodiment is viewed from a side.
【００２３】図１,図２,図３に示すように、上記実施例
はハブ部１と、このハブ部１から径方向外方へ向かって
伸びている４枚の羽根２,２,２,２を備えている。上記
ハブ部１は、略角錐台形状である。As shown in FIGS. 1, 2 and 3, in the above embodiment, the hub portion 1 and the four blades 2, 2, 2, extending radially outward from the hub portion 1 are used. Equipped with 2. The hub portion 1 has a substantially truncated pyramid shape.
【００２４】上記ハブ部１は、軸方向前端部３と、４つ
の傾斜部５,５,５,５と、４つの折れ曲がり部６,６,６,
６と、４つのストレート部７,７,７,７とを有してい
る。上記傾斜部５と折れ曲がり部６とストレート部７
は、上記軸方向前端部３から軸方向後方に向かって延び
ている。The hub portion 1 has an axial front end portion 3, four inclined portions 5, 5, 5, 5, and four bent portions 6, 6, 6,
6 and four straight portions 7, 7, 7, 7. The inclined portion 5, the bent portion 6 and the straight portion 7
Extends from the axial front end portion 3 toward the axial rear side.
【００２５】図２のＡ−Ａ断面図である図４(Ａ)に示す
ように、上記傾斜部５は、軸方向前方から軸方向後方に
向かって径方向外方へ広がっており、図４(Ｂ）に示す
ように、周方向に向かって略等ピッチで配置されてお
り、ハブ部１の軸芯を中心軸とする円錐形の一部を構成
している。また、上記折れ曲がり部６は、上記傾斜部５
の周方向の端から周方向に連なっており、上記傾斜部５
から径方向内方へ折れ曲がっている。また、上記ストレ
ート部７は、羽根２の軸方向後方に位置しており、上記
折れ曲がり部６の周方向の端から周方向に連なってお
り、軸方向前方から軸方向後方に向かってハブ部１の軸
芯に対して略平行に延びている。そして、上記ストレー
ト部７は径方向外方に凸に湾曲している。As shown in FIG. 4A, which is a sectional view taken along the line AA of FIG. 2, the inclined portion 5 extends radially outward from the front in the axial direction to the rear in the axial direction. As shown in (B), they are arranged at substantially equal pitches in the circumferential direction, and form a part of a conical shape whose center axis is the axial center of the hub portion 1. In addition, the bent portion 6 is the inclined portion 5
From the end in the circumferential direction to the circumferential direction.
Is bent inward in the radial direction. The straight portion 7 is located axially rearward of the blade 2, is continuous in the circumferential direction from the circumferential end of the bent portion 6, and is the hub portion 1 from the axial front side to the axial rear side. Extend substantially parallel to the axis of the. The straight portion 7 is curved so as to be convex outward in the radial direction.
【００２６】上記折れ曲がり部６とストレート部７とが
接続されている部分１１の軸方向後端が係合部１１ａを
なしている。The axial rear end of the portion 11 where the bent portion 6 and the straight portion 7 are connected to each other forms an engaging portion 11a.
【００２７】また、図１(Ｂ)に示すように、前端部３の
前面には、窪み部１０が４個形成されている。この４個
の軸方向窪み１０は、上記折れ曲がり部６とストレート
部７とが出会う角部１１の軸方向後端部１１ａと同じ形
状の物が嵌合できるように窪んでいる。上記窪み部１０
は、上記係合部１１ａの周方向の位置と略同一の周方向
の位置に形成されている。Further, as shown in FIG. 1B, four recesses 10 are formed on the front surface of the front end portion 3. The four axial recesses 10 are recessed so that an object having the same shape as the axial rear end 11a of the corner 11 where the bent portion 6 and the straight portion 7 meet can be fitted. The recess 10
Are formed at substantially the same circumferential positions as the circumferential positions of the engaging portion 11a.
【００２８】また、上記ハブ部１の内側には円柱部８が
設けられており、この円柱部８の前端は上記軸方向前端
部３につながっている。そして、この円柱部８からは放
射状に複数のリブ１２ａ,１２ｂが延びている。リブ１
２ａは折れ曲がり部６とストレート部７とが出会う角部
１１につながっており、リブ１２ｂはストレート部７と
傾斜部５とが出会う角部１４につながっている。A column portion 8 is provided inside the hub portion 1, and the front end of the column portion 8 is connected to the axial front end portion 3. A plurality of ribs 12a and 12b extend radially from the columnar portion 8. Rib 1
2a is connected to a corner 11 where the bent portion 6 and the straight portion 7 meet, and the rib 12b is connected to a corner 14 where the straight portion 7 and the inclined portion 5 meet.
【００２９】上記構成のファンは、羽根２が、図２に示
す回転方向に回転すると、図３において下方から上方に
向かう空気流が発生する。この空気流は、図示しない熱
交換器に衝突して冷媒を冷やす役目をする。このとき、
上記ファンが備えるハブ部１のストレート部７と折れ曲
がり部６は傾斜部５よりも径方向内方に位置しているの
で、上記空気流を妨げることがなく、また、上記空気流
の流路面積を減少させない。In the fan having the above structure, when the blades 2 rotate in the rotation direction shown in FIG. 2, an air flow is generated from the lower side to the upper side in FIG. The air flow collides with a heat exchanger (not shown) to cool the refrigerant. At this time,
Since the straight portion 7 and the bent portion 6 of the hub portion 1 included in the fan are located inward of the inclined portion 5 in the radial direction, the air flow is not obstructed and the flow area of the air flow is Does not decrease.
【００３０】一方、輸送の際の縦積み時には、上記ハブ
部１のストレート部７と折れ曲がり部６とが周方向に接
続されている角の部分１１の軸方向後端の係合部１１ａ
が、もう１つの同じファンの前端部３の窪み部１０に嵌
合できるから、輸送中の縦積み状態が崩れることを防止
できる。したがって、輸送中にファンに傷が付くことを
防止でき、ファンの破損を防止できる。On the other hand, at the time of vertical stacking during transportation, the engaging portion 11a at the rear end in the axial direction of the corner portion 11 at which the straight portion 7 and the bent portion 6 of the hub portion 1 are connected in the circumferential direction.
However, since it can be fitted in the recessed portion 10 of the front end portion 3 of another same fan, it is possible to prevent the state of vertical stacking during transportation from collapsing. Therefore, the fan can be prevented from being damaged during transportation, and the fan can be prevented from being damaged.
【００３１】したがって、この実施例のファンによれ
ば、回転時の空力性能の低下や騒音の上昇を招くことな
く、輸送中の縦積みの状態が崩れることを防止でき、フ
ァンに傷が付くことおよびファンの破損を防止できる。Therefore, according to the fan of this embodiment, the vertical stacking state during transportation can be prevented from collapsing and the fan can be damaged without causing deterioration of aerodynamic performance during rotation and increase of noise. And the damage of the fan can be prevented.
【００３２】また、上記径方向の内方にくびれた部分を
構成するストレート部７は、羽根２の軸方向後方に位置
している。つまり、上記ストレート部７は、ハブ部１を
金型成形する場合に必要な金型抜き用の軸方向に平行な
部分を構成している。すなわち、この実施例によれば、
上記ストレート部７が、軸芯に平行に延びる成形時に必
要な金型抜き部を兼ねることができる。The straight portion 7 which constitutes the inwardly narrowed portion in the radial direction is located axially rearward of the blade 2. That is, the straight portion 7 constitutes a portion parallel to the axial direction for die cutting necessary when the hub portion 1 is die-molded. That is, according to this embodiment,
The straight portion 7 can also serve as a die-cutting portion that extends in parallel with the axis and is required during molding.
【００３３】さらに、この実施例は、折れ曲がり部６と
ストレート部７の両方を備え、上記折れ曲がり部６とス
トレート部７とが径方向の内方にくびれているので、ハ
ブ部の機械的強度を向上させることができる。Further, this embodiment has both the bent portion 6 and the straight portion 7, and since the bent portion 6 and the straight portion 7 are constricted inward in the radial direction, the mechanical strength of the hub portion is improved. Can be improved.
【００３４】尚、上記実施例では、ハブ部１が折れ曲が
り部６とストレート部７の両方を備えたが、折れ曲がり
部６もしくはストレート部７の一方だけを備え、他方の
部分は切り欠いた状態になっていてもよい。また、上記
実施例では、ハブ部１の径方向内方にくびれた部分を折
れ曲がり部６とストレート部７の２つの部分によって構
成したが、上記径方向内方にくびれた部分を傾斜部５よ
りも径方向内方に位置する３つ以上の部分から構成する
ようにしてもよい。In the above embodiment, the hub portion 1 has both the bent portion 6 and the straight portion 7, but only one of the bent portion 6 and the straight portion 7 is provided, and the other portion is notched. It may be. Further, in the above-described embodiment, the radially inwardly constricted portion of the hub portion 1 is composed of the bent portion 6 and the straight portion 7, but the radially inwardly constricted portion is formed from the inclined portion 5. May also be composed of three or more portions located radially inward.
【００３５】また、上記実施例は、折れ曲がり部および
傾斜部がそれぞれ径方向外方に湾曲している略円錐台形
状のハブ部を備えたが、折れ曲がり部および傾斜部が非
湾曲で平らな角錐台形状のハブ部を備えてもよい。In the above embodiment, the bent portion and the inclined portion are each provided with a substantially truncated cone-shaped hub portion which is curved outward in the radial direction, but the bent portion and the inclined portion are non-curved and are flat pyramids. A trapezoidal hub portion may be provided.
【００３６】また、上記実施例では、羽根２,傾斜部５,
折れ曲がり部６,ストレート部７,軸方向窪み部１０をそ
れぞれ４つずつ設けたが、羽根,傾斜部,折れ曲がり部,
ストレート部,軸方向窪み部を幾つ設けていてもよい。Further, in the above embodiment, the blade 2, the inclined portion 5,
Four bent portions 6, four straight portions 7 and four axial recesses 10 are provided, but the blades, the inclined portions, the bent portions,
Any number of straight portions and axial recesses may be provided.
【００３７】また、上記実施例では、角部１１の周方向
位置に対応する周方向位置に窪み部１０を設けたが、フ
ァンを上下に縦積みする際にハブ部の羽根が上記縦積み
の障害にならないような周方向の位置であれば、窪み部
がどのような周方向位置に設けられていても良い。Further, in the above embodiment, the recess 10 is provided at the circumferential position corresponding to the circumferential position of the corner 11, but when the fans are vertically stacked, the blades of the hub part are vertically stacked. The recessed portion may be provided at any circumferential position as long as it does not interfere with the circumferential direction.
【００３８】[0038]
【発明の効果】以上より明らかなように、請求項１の発
明のファンは、略円錐台あるいは角錐台形のハブ部が、
軸方向前方から軸方向後方に向かって径方向外方へ広が
っている傾斜部と、この傾斜部の周方向の端から径方向
内方へ折れ曲がっている折れ曲がり部と、上記羽根の後
方に位置し、かつ上記傾斜部から周方向に連なり、かつ
軸方向前方から軸方向後方に向かってハブ部の軸芯に対
して略平行に延び、かつ上記折れ曲がり部に或る角をな
して周方向に接続されているストレート部と、上記折れ
曲がり部とストレート部との接続されている部分の軸方
向後端の係合部と同じ形状の物が嵌合でき、上記ハブ部
の軸方向の前端部に形成された窪み部とを備え、上記窪
み部は、この窪み部に別のファンのハブ部の軸方向後端
の係合部を嵌めたときに、両ハブ部の羽根が両ハブ部の
重ね合わせの障害とならないような周方向の位置に設け
られている。As is apparent from the above, the fan according to the first aspect of the present invention has a substantially frustoconical or truncated pyramidal hub portion,
An inclined portion that extends radially outward from the front in the axial direction toward the rear in the axial direction, a bent portion that bends inward in the radial direction from the circumferential end of the inclined portion, and is located behind the blade. And connected in the circumferential direction from the inclined portion, extending substantially parallel to the axial center of the hub portion from the front in the axial direction to the rear in the axial direction, and connecting in the circumferential direction at an angle to the bent portion. The same shape as the engaging portion at the axial rear end of the straight portion that is connected to the bent portion and the straight portion can be fitted, and is formed at the axial front end of the hub portion. When the engaging portion at the axial rear end of the hub portion of another fan is fitted into the depression portion, the blades of the hub portions are overlapped with each other. It is provided at a position in the circumferential direction so as not to become an obstacle.
【００３９】したがって、請求項１の発明によれば、縦
積みするときに、ハブ部の軸方向の前端部に形成された
窪み部に、その上に縦積みする別のファンのハブ部の軸
方向後端の係合部を嵌合できる。したがって、上記係合
部と上記窪み部との嵌合によって、輸送中に縦積み状態
が崩れることを防止できる。Therefore, according to the invention of claim 1, when vertically stacking, the shaft of the hub portion of another fan vertically stacked on the hollow portion formed at the front end portion in the axial direction of the hub portion. The engaging portion at the rear end in the direction can be fitted. Therefore, it is possible to prevent the vertically stacked state from collapsing during transportation due to the fitting of the engaging portion and the recess.
【００４０】一方、上記折れ曲がり部および上記ストレ
ート部は、上記ハブ部の傾斜部よりも径方向内方に有る
から、回転時に上記折れ曲がり部とストレート部が流体
の流れを乱すことがなく、かつ、流路面積を減少させる
ことがない。したがって、空力性能の低下や騒音の上昇
を招くことがない。On the other hand, since the bent portion and the straight portion are located radially inward of the inclined portion of the hub portion, the bent portion and the straight portion do not disturb the fluid flow during rotation, and It does not reduce the flow passage area. Therefore, the aerodynamic performance is not deteriorated and the noise is not increased.
【００４１】したがって、この発明のファンによれば、
回転時に空力性能の低下や騒音の上昇を招くことなく、
輸送中の縦積みの状態がずれることを防止でき、ファン
に傷が付くことおよびファンの破損を防止できる。Therefore, according to the fan of the present invention,
Without lowering aerodynamic performance and increasing noise during rotation,
It is possible to prevent the vertical stacking state from shifting during transportation, and to prevent the fan from being damaged and the fan from being damaged.
【００４２】また、請求項１の発明によれば、上記スト
レート部が羽根の後方に位置しているから、上記ストレ
ート部は成形時の金型抜き部をなしている。言い換えれ
ば、この発明によれば、上記ストレート部が、軸芯に平
行に延びる成形時に必要な金型抜き部を兼ねることがで
きる。Further, according to the first aspect of the invention, since the straight portion is located at the rear of the blade, the straight portion serves as a die removing portion at the time of molding. In other words, according to the present invention, the straight portion can also serve as a die-cutting portion that extends in parallel with the axis and is required during molding.
【００４３】また、請求項１の発明によれば、上記折れ
曲がり部とストレート部の両方を備えているので、この
折れ曲がり部とストレート部とがハブ部を補強する役目
を果たす。したがって、請求項１の発明によれば、ハブ
部の機械的強度を向上させることができる。Further, according to the invention of claim 1, since both of the bent portion and the straight portion are provided, the bent portion and the straight portion serve to reinforce the hub portion. Therefore, according to the invention of claim 1, the mechanical strength of the hub portion can be improved.
【００４４】また、請求項２の発明は、略円錐台あるい
は角錐台形のハブ部が、上記傾斜部と上記折れ曲がり部
と上記折れ曲がり部の周方向の端かつ軸方向後端の係合
部と同じ形状の物が嵌合でき、上記ハブ部の軸方向の前
端部に形成された窪み部とを備え、上記窪み部は、この
窪み部に別のファンのハブ部の軸方向後端の係合部を嵌
めたときに、両ハブ部の羽根が両ハブ部の重ね合わせの
障害とならないような周方向の位置に設けられている。Further, in the invention of claim 2, the substantially truncated cone or truncated pyramid shaped hub portion is the same as the engaging portion at the circumferential end of the inclined portion, the bent portion, and the bent portion and the axially rear end. And a recess formed in the front end of the hub in the axial direction, the recess being engaged with the rear end of the hub of the fan in the axial direction. When the parts are fitted, the blades of both hub parts are provided at circumferential positions so as not to hinder the superposition of both hub parts.
【００４５】したがって、請求項２の発明によれば、縦
積みするときに、ハブ部の軸方向の前端部に形成された
窪み部に、その上に縦積みする別のファンのハブ部の軸
方向後端の係合部を嵌合できる。従って、上記係合部と
窪み部との嵌合によって、輸送中に縦積み状態が崩れる
ことを防止できる。Therefore, according to the invention of claim 2, when vertically stacked, the shaft of the hub portion of another fan vertically stacked on the hollow portion formed at the front end portion in the axial direction of the hub portion. The engaging portion at the rear end in the direction can be fitted. Therefore, it is possible to prevent the vertically stacked state from collapsing during transportation due to the fitting of the engaging portion and the recessed portion.
【００４６】一方、上記折れ曲がり部は、上記ハブ部の
傾斜部よりも径方向内方にあるから、回転時に上記折れ
曲がり部が流体の流れを乱すことがなく、かつ、流路面
積を減少させることがない。したがって、空力性能の低
下や騒音の上昇を招くことがない。On the other hand, since the bent portion is located radially inward of the slanted portion of the hub portion, the bent portion does not disturb the flow of fluid during rotation and the flow passage area is reduced. There is no. Therefore, the aerodynamic performance is not deteriorated and the noise is not increased.
【００４７】したがって、請求項２の発明のファンによ
れば、回転時に空力性能の低下や騒音の上昇を招くこと
なく、輸送中の縦積みの状態が崩れることを防止でき、
ファンの傷付きおよびファンの破損を防止できる。Therefore, according to the fan of the second aspect of the present invention, it is possible to prevent the state of vertical stacking during transportation from collapsing without lowering aerodynamic performance and increasing noise during rotation.
It is possible to prevent damage to the fan and damage to the fan.
【００４８】また、請求項３の発明は、略円錐台あるい
は角錐台形のハブ部が、上記傾斜部と羽根の後方に位置
し、かつ上記傾斜部から周方向に連なり、かつ軸方向前
方から軸方向後方に向かってハブ部の軸芯に対して略平
行に延びているストレート部と、上記ストレート部の周
方向の端かつ軸方向後端の係合部と同じ形状の物が嵌合
でき、上記ハブ部の軸方向の前端部に形成された窪み部
とを備え、上記窪み部は、この窪み部に別のファンのハ
ブ部の軸方向後端の係合部を嵌めたときに、両ハブ部の
羽根が両ハブ部の重ね合わせの障害とならないような周
方向の位置に設けられている。According to the third aspect of the present invention, a hub portion having a substantially truncated cone shape or a truncated pyramid shape is located behind the slant portion and the blade, is continuous in the circumferential direction from the slant portion, and is axially forward from the shaft. A straight portion extending rearward in the direction substantially parallel to the axis of the hub portion, and an article having the same shape as the circumferential end of the straight portion and the engagement portion at the rear end in the axial direction can be fitted, A recess formed at the front end of the hub portion in the axial direction, wherein the recess has a recess when the engaging portion at the rear end of the hub of the fan of the other fan is fitted into the recess. The blades of the hub portion are provided at circumferential positions so as not to obstruct the superposition of both hub portions.
【００４９】したがって、請求項３の発明によれば、縦
積みするときに、ハブ部の軸方向の前端部に形成された
窪み部に、その上に縦積みする別のファンのハブ部の軸
方向後端の係合部を嵌合できる。したがって、輸送中に
縦積み状態が崩れることを防止できる。Therefore, according to the third aspect of the present invention, when vertically stacked, the shaft of the hub portion of another fan vertically stacked on the hollow portion formed at the front end portion in the axial direction of the hub portion. The engaging portion at the rear end in the direction can be fitted. Therefore, it is possible to prevent the vertically stacked state from collapsing during transportation.
【００５０】一方、上記ストレート部は、上記ハブ部の
傾斜部よりも径方向内方にあるから、回転時に上記スト
レート部が流体の流れを乱すことがなく、かつ、流路面
積を減少させることがない。したがって、空力性能の低
下や騒音の上昇を招くことがない。On the other hand, since the straight portion is located radially inward of the inclined portion of the hub portion, the straight portion does not disturb the flow of fluid during rotation and the flow passage area is reduced. There is no. Therefore, the aerodynamic performance is not deteriorated and the noise is not increased.
【００５１】したがって、この発明のファンによれば、
回転時に空力性能の低下や騒音の上昇を招くことなく、
輸送中の縦積みの状態が崩れることを防止でき、ファン
の傷付きおよびファンの破損を防止できる。Therefore, according to the fan of the present invention,
Without lowering aerodynamic performance and increasing noise during rotation,
It is possible to prevent the state of vertical stacking during transportation from collapsing, and to prevent damage and damage to the fan.
【００５２】また、請求項３の発明によれば、上記スト
レート部が羽根の後方に位置しているから、上記ストレ
ート部が成形時に必要な金型抜き部を兼ねることができ
る。Further, according to the third aspect of the invention, since the straight portion is located at the rear of the blade, the straight portion can also serve as a die removing portion necessary for molding.
【図１】 図１(Ａ)はこの発明のファンの実施例を斜め
後方から見た様子を示す図であり、図１（Ｂ)は上記実
施例を斜め前方から見た様子を示す図である。FIG. 1 (A) is a diagram showing an embodiment of a fan of the present invention as seen obliquely from the rear, and FIG. 1 (B) is a diagram showing the above embodiment as seen from an oblique front. is there.
【図２】 上記実施例を軸方向の後方から見た様子を示
す背面図である。FIG. 2 is a rear view showing the above embodiment as viewed from the axial rear side.
【図３】 上記実施例を側方から見た様子を示す側面図
である。FIG. 3 is a side view showing a state in which the above embodiment is viewed from the side.
【図４】 図４(Ａ)は上記実施例のハブ部の断面図であ
り、図４(Ｂ)は上記ハブ部を軸方向の前方から見た様子
を示す平面図である。FIG. 4 (A) is a cross-sectional view of the hub portion of the above embodiment, and FIG. 4 (B) is a plan view showing the hub portion as seen from the front in the axial direction.
【図５】 縦積みされた複数のファンが通い箱に収めら
れている様子を示す模式図である。FIG. 5 is a schematic diagram showing a state in which a plurality of vertically stacked fans are housed in a returnable box.
１…ハブ部、２…羽根、３…前端部、５…傾斜部、６…
折れ曲がり部、７…ストレート部、１０…窪み部、１
１,１３,１４…角部、１１ａ…係合部、１２ａ,１２ｂ
…リブ。1 ... Hub part, 2 ... Blade, 3 ... Front end part, 5 ... Inclined part, 6 ...
Bent part, 7 ... Straight part, 10 ... Dimple part, 1
1, 13, 14 ... Corners, 11a ... Engaging portions, 12a, 12b
…rib.
Claims (3)
このハブ部から径方向外方へ向かって延びている複数の
羽根とを備えるファンにおいて、 上記ハブ部は、 軸方向前方から軸方向後方に向かって径方向外方へ広が
っている傾斜部と、 上記傾斜部の周方向の端から径方向内方へ折れ曲がって
いる折れ曲がり部と、 上記羽根の後方に位置し、かつ上記傾斜部から周方向に
連なり、かつ軸方向前方から軸方向後方に向かってハブ
部の軸芯に対して略平行に延び、かつ上記折れ曲がり部
に或る角をなして周方向に接続されているストレート部
と、 上記折れ曲がり部とストレート部とが接続されている部
分の軸方向後端の係合部と同じ形状の物が嵌合でき、上
記ハブ部の軸方向の前端部に形成された窪み部とを備
え、 上記窪み部は、 この窪み部に別のファンのハブ部の軸方向後端の係合部
を嵌めたときに、両ハブ部の羽根が両ハブ部の重ね合わ
せの障害とならないような周方向の位置に設けられてい
ることを特徴とするファン。1. A hub portion having a substantially truncated cone shape or a truncated pyramid shape,
In a fan including a plurality of blades extending radially outward from the hub portion, the hub portion includes an inclined portion that extends radially outward from an axial front side to an axial rear side, A bent portion that is bent inward in the radial direction from the circumferential end of the inclined portion, is located behind the blade, is continuous in the circumferential direction from the inclined portion, and is axially frontward to axially rearward. A straight portion that extends substantially parallel to the axis of the hub portion and is connected to the bent portion in the circumferential direction at an angle to the bent portion, and a shaft of a portion to which the bent portion and the straight portion are connected. The same shape as the engaging portion at the rear end in the direction can be fitted, and the recessed portion is formed at the front end portion in the axial direction of the hub portion, and the recessed portion is the hub of another fan. When the engaging portion at the rear end in the axial direction of the First, the fan is characterized in that the blades of both hub portions are provided at circumferential positions so as not to hinder the superposition of both hub portions.
このハブ部から径方向外方へ向かって延びている複数の
羽根とを備えるファンにおいて、 上記ハブ部は、 軸方向前方から軸方向後方に向かって径方向外方へ広が
っている傾斜部と、 上記傾斜部の周方向の端から径方向内方へ折れ曲がって
いる折れ曲がり部と、 上記折れ曲がり部の周方向の端かつ軸方向後端の係合部
と同じ形状の物が嵌合でき、上記ハブ部の軸方向の前端
部に形成された窪み部とを備え、 上記窪み部は、 この窪み部に別のファンのハブ部の軸方向後端の係合部
を嵌めたときに、両ハブ部の羽根が両ハブ部の重ね合わ
せの障害とならないような周方向の位置に設けられてい
ることを特徴とするファン。2. A hub portion having a substantially truncated cone shape or a truncated pyramid shape,
In a fan including a plurality of blades extending radially outward from the hub portion, the hub portion includes an inclined portion that extends radially outward from an axial front side to an axial rear side, The bent portion bent inward in the radial direction from the circumferential end of the inclined portion and the engaging portion at the circumferential end of the bent portion and the axially rear end can be fitted to each other, and the hub can be fitted. A hollow portion formed at the front end portion in the axial direction of the fan portion, and the hollow portion is provided on both of the hub portions when the engagement portion at the axial rear end of the hub portion of another fan is fitted into the hollow portion. The fan is provided at a circumferential position that does not hinder the superposition of both hub portions.
このハブ部から径方向外方へ向かって延びている複数の
羽根とを備えるファンにおいて、 上記ハブ部は、 軸方向前方から軸方向後方に向かって径方向外方へ広が
っている傾斜部と、 上記羽根の後方に位置し、かつ上記傾斜部から周方向に
連なり、かつ、軸方向前方から軸方向後方に向かってハ
ブ部の軸芯に対して略平行に延びているストレート部
と、 上記ストレート部の周方向の端かつ軸方向後端の係合部
と同じ形状の物が嵌合でき、上記ハブ部の軸方向の前端
部に形成された窪み部とを備え、 上記窪み部は、 この窪み部に別のファンのハブ部の軸方向後端の係合部
を嵌めたときに、両ハブ部の羽根が両ハブ部の重ね合わ
せの障害とならないような周方向の位置に設けられてい
ることを特徴とするファン。3. A hub portion having a substantially truncated cone shape or a truncated pyramid shape,
In a fan including a plurality of blades extending radially outward from the hub portion, the hub portion includes an inclined portion that extends radially outward from an axial front side to an axial rear side, A straight portion that is located rearward of the blade, is continuous from the inclined portion in the circumferential direction, and extends substantially parallel to the axial center of the hub portion from the front in the axial direction to the rear in the axial direction; An article having the same shape as the engagement portion at the end in the circumferential direction and at the rear end in the axial direction of the portion can be fitted, and includes a recessed portion formed at the front end portion in the axial direction of the hub portion, wherein the recessed portion is When the engagement portion at the axial rear end of the hub portion of another fan is fitted into the recessed portion, the blades of both hub portions are provided at circumferential positions so as not to hinder the superposition of both hub portions. A fan characterized by being present.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6184483A JP3022185B2 (en) | 1994-08-05 | 1994-08-05 | fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6184483A JP3022185B2 (en) | 1994-08-05 | 1994-08-05 | fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0849697A true JPH0849697A (en) | 1996-02-20 |
| JP3022185B2 JP3022185B2 (en) | 2000-03-15 |
Family
ID=16153970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6184483A Expired - Fee Related JP3022185B2 (en) | 1994-08-05 | 1994-08-05 | fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3022185B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016136012A (en) * | 2015-01-23 | 2016-07-28 | パナソニックＩｐマネジメント株式会社 | Axial flow fan |
| CN107664140A (en) * | 2016-07-27 | 2018-02-06 | 日本电产株式会社 | Impeller and motor |
| CN108843596A (en) * | 2018-06-28 | 2018-11-20 | Tcl空调器(中山)有限公司 | Axial-flow leaf and air conditioner |
| WO2019030866A1 (en) * | 2017-08-09 | 2019-02-14 | 三菱電機株式会社 | Propeller fan, air blowing device, and refrigerating cycle device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4598357B2 (en) | 2002-12-17 | 2010-12-15 | 帝人株式会社 | Oxygen supply equipment |
| TWI323178B (en) | 2003-08-26 | 2010-04-11 | Teijin Pharma Ltd | Oxygen concentrating apparatus |
-
1994
- 1994-08-05 JP JP6184483A patent/JP3022185B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016136012A (en) * | 2015-01-23 | 2016-07-28 | パナソニックＩｐマネジメント株式会社 | Axial flow fan |
| CN107664140A (en) * | 2016-07-27 | 2018-02-06 | 日本电产株式会社 | Impeller and motor |
| US10267338B2 (en) | 2016-07-27 | 2019-04-23 | Nidec Corporation | Impeller and motor |
| WO2019030866A1 (en) * | 2017-08-09 | 2019-02-14 | 三菱電機株式会社 | Propeller fan, air blowing device, and refrigerating cycle device |
| JPWO2019030866A1 (en) * | 2017-08-09 | 2020-02-27 | 三菱電機株式会社 | Propeller fan, blower, and refrigeration cycle device |
| CN111033055A (en) * | 2017-08-09 | 2020-04-17 | 三菱电机株式会社 | Propeller fan, blower, and refrigeration cycle device |
| CN111033055B (en) * | 2017-08-09 | 2021-02-26 | 三菱电机株式会社 | Propeller fan, blower, and refrigeration cycle device |
| US11187239B2 (en) | 2017-08-09 | 2021-11-30 | Mitsubishi Electric Corporation | Propeller fan, air-sending device, and refrigeration cycle apparatus |
| CN108843596A (en) * | 2018-06-28 | 2018-11-20 | Tcl空调器(中山)有限公司 | Axial-flow leaf and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3022185B2 (en) | 2000-03-15 |
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