JP2020153342A - Centrifugal impeller - Google Patents
Centrifugal impeller Download PDFInfo
- Publication number
- JP2020153342A JP2020153342A JP2019054685A JP2019054685A JP2020153342A JP 2020153342 A JP2020153342 A JP 2020153342A JP 2019054685 A JP2019054685 A JP 2019054685A JP 2019054685 A JP2019054685 A JP 2019054685A JP 2020153342 A JP2020153342 A JP 2020153342A
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- JP
- Japan
- Prior art keywords
- hub
- main plate
- insertion hole
- interpolation
- plate
- 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
- 238000003780 insertion Methods 0.000 claims abstract description 37
- 230000037431 insertion Effects 0.000 claims abstract description 37
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000012530 fluid Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
本発明は、支軸が挿通される挿通孔を中央部に有する円形主板と、略截頭円錐形状の外面を有しつつ前記挿通孔に同軸に連なる筒状に形成されて前記円形主板から前記挿通孔の軸方向一側に突出するハブと、そのハブ側に向かって捩じり上げられた捩じり部分を前記ハブ側の端部に有しつつ前記挿通孔の軸線に沿う方向から見て相互に重なり合うのを避ける位置で前記円形主板および前記ハブから前記軸方向一側に突出する複数の羽根部とを備える遠心羽根車に関する。 In the present invention, a circular main plate having an insertion hole through which a support shaft is inserted is formed in a central portion, and a cylindrical main plate having a substantially conical outer surface and coaxially connected to the insertion hole is formed from the circular main plate. A hub that projects to one side of the insertion hole in the axial direction and a twisted portion that is twisted up toward the hub side are held at the end of the hub side and viewed from the direction along the axis of the insertion hole. The present invention relates to a centrifugal impeller including the circular main plate and a plurality of blades projecting from the hub to one side in the axial direction at positions where they do not overlap each other.
遠心ファンが、それぞれ軸方向に型抜き可能として形成された樹脂製の入口部と出口部とに軸方向に２分割されて成るようにしたものが、特許文献１で知られており、またハブに一体成形されるハブ側翼と、シュラウドに一体成形されるシュラウド側翼とで翼が構成されるようにしたものが、特許文献２で知られている。 It is known in Patent Document 1 that the centrifugal fan is divided into two in the axial direction into a resin inlet portion and an outlet portion formed so as to be die-cut in the axial direction, respectively, and a hub. It is known in Patent Document 2 that a wing is composed of a hub side wing integrally molded with the shroud and a shroud side wing integrally molded with the shroud.
上記特許文献１で開示されたものでは、入口部および出口部がそれぞれ軸方向に厚くなり、遠心羽根車の軸方向大型化を招いてしまう。しかも入口部の羽根部が宙に浮いた状態となって樹脂製の羽根部の合成が脆弱になり易く、振動や騒音が生じ易くなる。 In the one disclosed in Patent Document 1, the inlet portion and the outlet portion become thicker in the axial direction, respectively, which causes the centrifugal impeller to become larger in the axial direction. Moreover, the blades at the entrance are in a state of floating in the air, and the synthesis of the resin blades tends to be fragile, and vibration and noise are likely to occur.
また上記特許文献２で開示されたものでは、翼による流体の送り出し効率を高めるためにハブと一体成形されるハブ側翼に捩じりを設ける際に、アンダーカットが生じないようにするためにはスライドコア、湾曲中子および引き抜き中子等を有する複雑な金型が必要となり、コストの増大を招いてしまう。 Further, in what is disclosed in Patent Document 2, in order to prevent undercut when twisting the hub side blade integrally molded with the hub in order to improve the efficiency of fluid delivery by the blade. A complicated mold having a slide core, a curved core, a drawn core, and the like is required, which leads to an increase in cost.
本発明は、かかる事情に鑑みてなされたものであり、高効率な三次元形状を有しつつ効率よく低コストで製造可能とした遠心羽根車を提供することを目的とする。 The present invention has been made in view of such circumstances, and an object of the present invention is to provide a centrifugal impeller that has a highly efficient three-dimensional shape and can be manufactured efficiently and at low cost.
上記目的を達成するために、本発明は、支軸が挿通される挿通孔を中央部に有する円形主板と、略截頭円錐形状の外面を有しつつ前記挿通孔に同軸に連なる筒状に形成されて前記円形主板から前記挿通孔の軸方向一側に突出するハブと、そのハブ側に向かって捩じり上げられた捩じり部分を前記ハブ側の端部に有しつつ前記挿通孔の軸線に沿う方向から見て相互に重なり合うのを避ける位置で前記円形主板および前記ハブから前記軸方向一側に突出する複数の羽根部とを備える遠心羽根車において、前記円形主板、前記ハブおよび前記羽根部が樹脂製の羽根車本体に一体に設けられ、前記羽根車本体に、前記挿通孔の軸線に沿う方向での前記羽根部の投影を含む形状の切り抜き孔が形成され、当該切り抜き孔を埋めて前記円形主板、前記ハブおよび前記羽根部の表面に滑らかに連なる補間部を有する樹脂製の補間部材が、前記羽根車本体に前記挿通孔の軸線に沿う他方側から結合されることを第１の特徴とする。 In order to achieve the above object, the present invention has a circular main plate having an insertion hole in the center through which a support shaft is inserted, and a tubular shape having a substantially conical outer surface and coaxially connected to the insertion hole. The insertion while having a hub formed and protruding from the circular main plate in one axial direction of the insertion hole and a twisted portion twisted up toward the hub side at an end portion on the hub side. In a centrifugal impeller including a circular main plate and a plurality of blades projecting from the hub to one side in the axial direction at positions that avoid overlapping each other when viewed from the direction along the axis of the hole, the circular main plate and the hub. The blade portion is integrally provided with the impeller body made of resin, and the impeller body is formed with a cutout hole having a shape including the projection of the blade portion in the direction along the axis of the insertion hole. A resin interpolation member having a hole-filled circular main plate, a hub, and an interpolation portion smoothly connected to the surface of the blade portion is coupled to the impeller body from the other side along the axis of the insertion hole. Is the first feature.
また本発明は、第１の特徴の構成に加えて、前記補間部材は、前記円形主板に前記挿通孔の軸方向他方側から当接する円形補助板と、当該円形補助板から突出する前記補間部とを一体に有し、前記補間部は、前記切り抜き孔のうち前記円形主板に対応する部位を埋める主板補間部分と、前記切り抜き孔のうち前記ハブに対応する部分を埋めるハブ補間部分とを有するように形成されることを第２の特徴とする。 Further, in the present invention, in addition to the configuration of the first feature, the interpolation member includes a circular auxiliary plate that abuts on the circular main plate from the other side in the axial direction of the insertion hole, and the interpolation portion that protrudes from the circular auxiliary plate. The interpolation unit has a main plate interpolation portion that fills a portion of the cutout hole corresponding to the circular main plate, and a hub interpolation portion that fills the portion of the cutout hole corresponding to the hub. The second feature is that it is formed in this way.
本発明は、第２の特徴の構成に加えて、複数の前記羽根部の前記捩じり部分を除く部分に前記補間部材とは反対側から樹脂製の前面プレートが当接され、前記羽根部に一体に設けられて前記前面プレート側に突出するボス部を係合させる係止部が、前記前面プレートに形成されることを第３の特徴とする。 In the present invention, in addition to the configuration of the second feature, a resin front plate is brought into contact with a portion of the plurality of blade portions excluding the twisted portion from the side opposite to the interpolation member, and the blade portion is provided. A third feature is that a locking portion that is integrally provided on the front plate and engages with the boss portion that projects toward the front plate side is formed on the front plate.
さらに本発明は、第２の特徴の構成に加えて、複数の前記羽根部の前記捩じり部分を除く部分に前記補間部材とは反対側から樹脂製の前面プレートが当接され、前記羽根部の前記切り抜き孔側に臨む側面に切欠き部が形成され、前記補間部材に一体に設けられて前記切欠き部を埋めつつ前記前面プレート側に突出するボス部を係合させる係止部が、前記前面プレートに形成されることを第４の特徴とする。 Further, in the present invention, in addition to the configuration of the second feature, the front plate made of resin is brought into contact with the portions of the plurality of blades excluding the twisted portions from the side opposite to the interpolation member, and the blades. A notch is formed on the side surface of the portion facing the cutout hole side, and a locking portion that is integrally provided with the interpolation member and engages with a boss portion that protrudes toward the front plate side while filling the notch. The fourth feature is that it is formed on the front plate.
本発明の第１の特徴によれば、円形主板、ハブおよび羽根部を一体に有する樹脂製の羽根車本体に、羽根部の投影を含む形状の切り抜き孔が形成されるので、羽根部が捩じり部分を有した三次元形状のものであっても樹脂成形時のアンダーカット形状を回避することが可能であり、また切り抜き孔が樹脂製の補間部材が有する補間部で埋められるので、高効率な三次元形状の羽根部を有する遠心羽根車を低コストで薄型に製作することができる。またこのような遠心羽根車を成形する金型装置は、スライドコア、湾曲中子および引き抜き中子等や、それらを動かすための可動機構が不要となることから、製造コストが著しく低減される。しかも可動機構が不要となることで余裕が生じたスペースには複数個のキャビティを設けることができ、いわゆる「多数個取りの樹脂成形金型」を使用して遠心羽根車の部品を一挙に大量に製作することができることから、低コストで三次元形状の遠心羽根車を製作することができる。 According to the first feature of the present invention, the blade portion is twisted because a cutout hole having a shape including the projection of the blade portion is formed in the resin impeller body having the circular main plate, the hub and the blade portion integrally. It is possible to avoid the undercut shape at the time of resin molding even if it has a three-dimensional shape having a rim portion, and the cutout hole is filled with the interpolation portion of the resin interpolation member, so that the height is high. A centrifugal impeller having an efficient three-dimensionally shaped blade can be manufactured thinly at low cost. Further, the mold device for forming such a centrifugal impeller does not require a slide core, a curved core, a drawing core, or a movable mechanism for moving them, so that the manufacturing cost is significantly reduced. Moreover, multiple cavities can be provided in the space where a movable mechanism is not required, and a large number of centrifugal impeller parts can be provided at once using a so-called "many-piece resin molding die". It is possible to manufacture a three-dimensional centrifugal impeller at low cost because it can be manufactured.
また本発明の第２の特徴によれば、補間部材の円形補助板から突出する補間部が、切り抜き孔のうち円形主板に対応する部位を埋める主板補間部分と、切り抜き孔のうちハブに対応する部分を埋めるハブ補間部分とを有するので、羽根部の捩じり部分のハブへの連設部にアンダーカットが生じないようにすることができる。 Further, according to the second feature of the present invention, the interpolation portion protruding from the circular auxiliary plate of the interpolation member corresponds to the main plate interpolation portion that fills the portion of the cutout hole corresponding to the circular main plate and the hub of the cutout holes. Since it has a hub interpolation portion that fills the portion, it is possible to prevent undercuts from occurring in the portion of the blade portion that is connected to the hub by the twisted portion.
本発明の第３の特徴によれば、前面プレートに形成される係止部に羽根部に一体に設けられるボス部が係合されるので、羽根車本体および前面プレートの接合が容易となる。 According to the third feature of the present invention, since the boss portion integrally provided on the blade portion is engaged with the locking portion formed on the front plate, the impeller body and the front plate can be easily joined.
さらに本発明の第４の特徴によれば、前面プレートに形成される係止部に、羽根部の切り抜き孔側に臨む側面に形成される切欠き部を埋めるようにして補間部材に一体に設けられるボス部が係合されるので、前面プレート、羽根車本体および補間部材をそれらの相対位置を定めて接合することが容易となる。 Further, according to the fourth feature of the present invention, the locking portion formed on the front plate is integrally provided with the interpolation member so as to fill the notch formed on the side surface facing the cutout hole side of the blade portion. Since the boss portions to be formed are engaged, it becomes easy to determine the relative positions of the front plate, the impeller body, and the interpolation member and join them.
本発明の実施の形態について添付の図面を参照しながら説明する。 Embodiments of the present invention will be described with reference to the accompanying drawings.
本発明の第１の実施の形態について図１〜図３を参照しながら説明すると、先ず図１において、この電動流体ポンプは、ポンプ室６を内部に有するケーシング７と、ケーシング７に支持される支持軸８と、その支持軸８に回転自在に支持されて前記ポンプ室６に収容される遠心羽根車９Ａと、当該遠心羽根車９Ａとともに回転するようにして前記ポンプ室６に収容されるロータ１０と、前記ケーシング７外で前記ロータ１０を囲繞するように配置されるステータ１１とを備える。 The first embodiment of the present invention will be described with reference to FIGS. 1 to 3. First, in FIG. 1, the electric fluid pump is supported by a casing 7 having a pump chamber 6 inside and a casing 7. A support shaft 8, a centrifugal impeller 9A rotatably supported by the support shaft 8 and housed in the pump chamber 6, and a rotor housed in the pump chamber 6 so as to rotate with the centrifugal impeller 9A. A 10 and a stator 11 arranged so as to surround the rotor 10 outside the casing 7 are provided.
前記ケーシング７は、前記ポンプ室６の中央部上端に開口する吸入口１２を形成するようにして上下方向に延びる吸入筒部１３ｂならびに前記ポンプ室６内の外周部に連なって接線方向に延びる吐出筒部１３ｃを有するポンプケース１３と、当該ポンプケース１３との間に前記ポンプ室６を形成するようにして前記ポンプケース１３に結合される缶状のケース部材１４とで構成される。 The casing 7 is connected to the suction cylinder portion 13b extending in the vertical direction so as to form a suction port 12 opening at the upper end of the central portion of the pump chamber 6 and the outer peripheral portion in the pump chamber 6 and extends in the tangential direction. It is composed of a pump case 13 having a tubular portion 13c and a can-shaped case member 14 that is coupled to the pump case 13 so as to form the pump chamber 6 between the pump case 13.
前記ポンプケース１３は下方に開放した皿状のポンプケース主部１３ａと、そのポンプケース主部１３ａの上端中央部に連設される前記吸入筒部１３ｂと、前記ポンプケース１３の外周に連設される前記吐出筒部１３ｃと、前記ポンプケース主部１３ａ下端から半径方向外方に張り出す第１のフランジ部１３ｄとを一体に有するようにして合成樹脂で形成され、前記第１のフランジ部１３ｄは、前記ポンプケース主部１３ａの半径方向に沿う外方側か内方側よりも低くなるようにした段付きに形成される。 The pump case 13 is connected to a dish-shaped pump case main portion 13a that is open downward, a suction cylinder portion 13b that is connected to the central portion of the upper end of the pump case main portion 13a, and an outer periphery of the pump case 13. The discharge cylinder portion 13c to be formed and the first flange portion 13d projecting outward in the radial direction from the lower end of the pump case main portion 13a are integrally formed of the synthetic resin, and the first flange portion is formed. The 13d is formed with a step so as to be lower than the outer side or the inner side along the radial direction of the pump case main portion 13a.
前記ケース部材１４は、前記ポンプケース主部１３ａの内径よりも小さな内径を有して上方を開放した有底円筒部１４ａと、その有底円筒部１４ａの上端部から半径方向外方に張り出して前記第１のフランジ部１３ｄに下方から当接、嵌合される第２のフランジ部１４ｂとを一体に有して合成樹脂により形成される。 The case member 14 has a bottomed cylindrical portion 14a having an inner diameter smaller than the inner diameter of the pump case main portion 13a and opening upward, and the case member 14 projecting outward in the radial direction from the upper end portion of the bottomed cylindrical portion 14a. It is formed of a synthetic resin having a second flange portion 14b that comes into contact with and is fitted to the first flange portion 13d from below.
前記ケーシング７には、中間ケース部材１５と、その中間ケース部材１５を前記ケーシング７との間に挟むカバー部材１６が結合される。前記中間ケース部材１５は、前記有底円筒部１４ａを同軸に囲繞する円筒状のケース部材主部１５ａと、そのケース部材主部１５ａの上部から半径方向外方に張り出す第３のフランジ部１５ｂと、前記ケース部材主部１５ａの下部から半径方向外方に張り出す第４のフランジ部１５ｃとを一体に有し、前記ケース部材主部１５ａの上部および前記第３のフランジ部１５ｂは、前記第２のフランジ部１４ｂに前記第３のフランジ部１５ｂを下方から当接させるようにして前記第２のフランジ部１４ｂに嵌合され、前記第１のフランジ部１３ｄおよび第３のフランジ部１５ｂが相互間に前記第２のフランジ部１４ｂを挟んで結合される。 An intermediate case member 15 and a cover member 16 that sandwiches the intermediate case member 15 between the casing 7 are coupled to the casing 7. The intermediate case member 15 includes a cylindrical case member main portion 15a that coaxially surrounds the bottomed cylindrical portion 14a, and a third flange portion 15b that projects outward in the radial direction from the upper portion of the case member main portion 15a. And a fourth flange portion 15c projecting outward in the radial direction from the lower portion of the case member main portion 15a, and the upper portion of the case member main portion 15a and the third flange portion 15b are described. The third flange portion 15b is brought into contact with the second flange portion 14b from below so as to be fitted to the second flange portion 14b, and the first flange portion 13d and the third flange portion 15b are brought into contact with each other. The second flange portion 14b is sandwiched and connected to each other.
前記カバー部材１６は、下端部を閉じた有底円筒状に形成されるカバー部材主部１６ａと、そのカバー部材主部１６ａの上端部から半径方向外方に張り出して前記中間ケース部材１５の下端部の前記第４のフランジ部１５ｃに下方から結合される第５のフランジ部１６ｂが一体に設けられて成り、前記第４のフランジ部１５ｃおよび前記第５のフランジ部１６ｂ間には環状のシール部材１７が挟持される。 The cover member 16 protrudes outward in the radial direction from the cover member main portion 16a formed in a bottomed cylindrical shape with the lower end portion closed and the upper end portion of the cover member main portion 16a, and the lower end of the intermediate case member 15. A fifth flange portion 16b to be integrally provided to the fourth flange portion 15c of the portion is integrally provided, and an annular seal is provided between the fourth flange portion 15c and the fifth flange portion 16b. The member 17 is sandwiched.
前記ケース部材１４における前記有底円筒部１４ａの外面には前記ステータ１１が固定されており、このステータ１１は前記中間ケース部材１５における前記ケース部材主部１５ａで囲繞される。また前記カバー部材１６の前記カバー部材主部１６ａ内には、制御回路基板１８が収容、固定される。 The stator 11 is fixed to the outer surface of the bottomed cylindrical portion 14a of the case member 14, and the stator 11 is surrounded by the case member main portion 15a of the intermediate case member 15. Further, the control circuit board 18 is housed and fixed in the cover member main portion 16a of the cover member 16.
前記支持軸８の最上方位置にある一端部は、前記ケーシング７における前記ポンプケース１３に設けられて前記吸入口１２の内側に配置される保持部２０に保持される。 One end of the support shaft 8 at the uppermost position is held by a holding portion 20 provided in the pump case 13 in the casing 7 and arranged inside the suction port 12.
前記保持部２０は、前記吸入筒部１３ｂの前記ポンプ室６側の端部内の中央部に配置されるものであり、前記支持軸８の前記一端部を嵌合、固定させるようにして下方に開放した嵌合凹部２１を有し、前記吸入筒部１３ｂの前記ポンプ室６側の端部内周に、周方向に間隔をあけて配置される複数の支持腕部２２を介して一体に連設される。また前記ケース部材１４は、前記有底円筒部１４ａの下端閉塞部から上方に延びる円筒状の支持筒部１４ｃを一体に有しており、前記支持軸８の他端部は前記支持筒部１４ｃ内に嵌合される。 The holding portion 20 is arranged at the central portion in the end portion of the suction cylinder portion 13b on the pump chamber 6 side, and the one end portion of the support shaft 8 is fitted and fixed to the lower portion. It has an open fitting recess 21, and is integrally provided on the inner circumference of the end portion of the suction cylinder portion 13b on the pump chamber 6 side via a plurality of support arm portions 22 arranged at intervals in the circumferential direction. Will be done. Further, the case member 14 integrally has a cylindrical support cylinder portion 14c extending upward from the lower end closing portion of the bottomed cylindrical portion 14a, and the other end portion of the support shaft 8 is the support cylinder portion 14c. Fitted inside.
前記ロータ１０は、ロータハブ２４と、そのロータハブ２４に固定されるボンド磁石２５とから成る。前記ロータハブ２４は、前記支持筒部１４ｃを同軸に囲繞する円筒状の磁石支持部２４ａと、その磁石支持部２４ａよりも小径に形成されて前記支持軸８を同軸に囲繞しつつ前記磁石支持部２４ａの上端部から上方に延出される延出筒部２４ｂとが同軸にかつ一体に連設されて成り、前記ボンド磁石２５は前記磁石支持部２４ａの外周にアウトサート成形され、前記延出筒部２４ｂの上部には、前記遠心羽根車９Ａがスナップフィット等によって固定される。 The rotor 10 includes a rotor hub 24 and a bond magnet 25 fixed to the rotor hub 24. The rotor hub 24 has a cylindrical magnet support portion 24a that coaxially surrounds the support cylinder portion 14c, and the magnet support portion 24a that is formed to have a diameter smaller than that of the magnet support portion 24a and that coaxially surrounds the support shaft 8. The extension cylinder portion 24b extending upward from the upper end portion of the 24a is coaxially and integrally connected to the extension cylinder portion 24b, and the bond magnet 25 is outsert-formed on the outer periphery of the magnet support portion 24a to form the extension cylinder. The centrifugal impeller 9A is fixed to the upper portion of the portion 24b by a snap fit or the like.
前記ロータ１０と、そのロータハブ２４が有する前記延出筒部２４ｂに固定される前記遠心羽根車９Ａとは、前記支持軸８に、第１および第２の滑り軸受３０，３１を介して回転自在に支持される。 The rotor 10 and the centrifugal impeller 9A fixed to the extension cylinder portion 24b of the rotor hub 24 are rotatable on the support shaft 8 via first and second slide bearings 30 and 31. Supported by.
前記第１の滑り軸受３０は、前記保持部２０との間にワッシャ２８を介在せて前記延出筒部２４ｂに圧入される。また前記第２の滑り軸受３１は、前記第１の滑り軸受３０とは軸方向に間隔をあけるようにして前記延出筒部２４ｂに圧入される。 The first slide bearing 30 is press-fitted into the extension cylinder portion 24b with a washer 28 interposed between the first slide bearing 30 and the holding portion 20. Further, the second slide bearing 31 is press-fitted into the extension cylinder portion 24b so as to be axially spaced from the first slide bearing 30.
図２を併せて参照して、前記遠心羽根車９Ａは、羽根車本体３５Ａと、前記支軸８の軸線方向に沿う両側から前記羽根車本体３５Ａを挟む補間部材３６Ａおよび前面プレート３７Ａとが接合されて成り、前記羽根車本体３５Ａ、前記補間部材３６Ａおよび前記前面プレート３７Ａは、それぞれ樹脂製である。 With reference to FIG. 2, in the centrifugal impeller 9A, the impeller body 35A and the interpolation member 36A and the front plate 37A sandwiching the impeller body 35A from both sides along the axial direction of the support shaft 8 are joined. The impeller body 35A, the interpolation member 36A, and the front plate 37A are each made of resin.
図３を併せて参照して、前記羽根車本体３５Ａは、前記支軸８および前記ロータ１０の前記延出筒部２４ｂが挿通される挿通孔３８を中央部に有する円形主板３９と、略截頭円錐形状の外面を有しつつ前記挿通孔３８に同軸に連なる筒状に形成されて前記円形主板３９から前記挿通孔３８の軸方向一側（電動流体ポンプへの組み付け時に上側）に突出するハブ４０と、前記ハブ４０側に向かって捩じり上げられた捩じり部分４１ａを前記ハブ４０側の端部に有しつつ前記挿通孔３８の軸線に沿う方向から見て相互に重なり合うのを避ける位置で前記円形主板３９および前記ハブ４０から前記軸方向一側に突出する複数たとえば５個の）羽根部４１とを一体に有するように形成される。 With reference to FIG. 3, the impeller body 35A has a circular main plate 39 having an insertion hole 38 in the center through which the extension cylinder portion 24b of the support shaft 8 and the rotor 10 is inserted, and a substantially conical shape. It has a conical outer surface and is formed in a tubular shape coaxially connected to the insertion hole 38, and projects from the circular main plate 39 to one side in the axial direction of the insertion hole 38 (upper side when assembled to the electric fluid pump). The hub 40 and the twisted portion 41a twisted up toward the hub 40 side are overlapped with each other when viewed from the direction along the axis of the insertion hole 38 while being held at the end portion on the hub 40 side. It is formed so as to integrally have the circular main plate 39 and a plurality of, for example, five blade portions 41 protruding from the hub 40 on one side in the axial direction at a position avoiding the above.
また前記羽根車本体３５Ａには、前記挿通孔３８の軸線に沿う方向での前記羽根部４１の投影を含む形状の切り抜き孔４２が、前記羽根部４１に個別に対応して形成される。それらの切り抜き孔４２は、前記羽根部４１の前記捩じり部分４１ａの前記ハブ４０への連設部を含むようにしてハブ４０の一部を切欠くように形成される。 Further, in the impeller body 35A, a cutout hole 42 having a shape including a projection of the blade portion 41 in a direction along the axis of the insertion hole 38 is individually formed corresponding to the blade portion 41. The cutout holes 42 are formed so as to cut out a part of the hub 40 so as to include a continuous portion of the twisted portion 41a of the blade portion 41 to the hub 40.
前記補間部材３６Ａは、前記羽根車本体３５Ａの前記切り抜き孔４２を埋めて前記円形主板３９、前記ハブ４０および前記羽根部４１の表面に滑らかに連なる補間部４４を有するものであり、前記円形主板３９に前記挿通孔３８の軸方向他方側から当接する円形補助板４３と、当該円形補助板４３から突出する前記補間部４４とを一体に有するように形成される。前記円形補助板４３は、この実施の形態では、前記円形主板３９よりもわずかに小さな外径を有するように形成される。前記円形主板３９の外周には、当該円形主板３８に当接した前記円形補助板４３の外周を覆う筒状部３９ａが一体に設けられ、前記円形主板３９の前記筒状部３９ａと、前記円形補助板４３との合わせ目は前記挿通孔３８の軸線に沿う他方側（電動流体ポンプへの組み付け状態では下側）に露呈されている。 The interpolation member 36A has an interpolation portion 44 that fills the cutout hole 42 of the impeller body 35A and is smoothly connected to the surfaces of the circular main plate 39, the hub 40, and the blade portion 41, and the circular main plate. A circular auxiliary plate 43 that abuts on 39 from the other side in the axial direction of the insertion hole 38 and the interpolation portion 44 that protrudes from the circular auxiliary plate 43 are integrally formed. In this embodiment, the circular auxiliary plate 43 is formed so as to have an outer diameter slightly smaller than that of the circular main plate 39. A tubular portion 39a that covers the outer circumference of the circular auxiliary plate 43 that is in contact with the circular main plate 38 is integrally provided on the outer periphery of the circular main plate 39, and the tubular portion 39a of the circular main plate 39 and the circular portion 39a. The seam with the auxiliary plate 43 is exposed on the other side (lower side when assembled to the electric fluid pump) along the axis of the insertion hole 38.
また前記補間部４４は、前記切り抜き孔４２のうち前記円形主板３９に対応する部位を埋める主板補間部分４４ａと、前記切り抜き孔４２のうち前記ハブ４０に対応する部分を埋めるハブ補間部分４４ｂとを有するように形成される。 Further, the interpolation unit 44 includes a main plate interpolation portion 44a that fills a portion of the cutout hole 42 corresponding to the circular main plate 39, and a hub interpolation portion 44b that fills a portion of the cutout hole 42 corresponding to the hub 40. Formed to have.
前記前面プレート３７Ａは、前記羽根車本体３５Ａにおける複数の前記羽根部４１の前記捩じり部分４１ａを除く部分に前記補間部材３６Ａとは反対側から当接するものであり、環状板部４５と、その環状板部４５の内周に連なって前記羽根車本体３５Ａとは反対側にわずかに突出する短円筒部４６とを一体に有するように形成され、前記短円筒部４６と、前記羽根車本体３５Ａの前記ハブ４０ならびに当該ハブ４０に挿通される前記延出筒部２４ｂおよび前記ハブ４０との間には、前記ケーシング７の前記吸入口１２に通じる環状の入口部が形成される。 The front plate 37A abuts on the portions of the impeller body 35A other than the twisted portions 41a of the plurality of blade portions 41 from the side opposite to the interpolation member 36A, and the annular plate portion 45 and the annular plate portion 45. It is formed so as to integrally have a short cylindrical portion 46 that is connected to the inner circumference of the annular plate portion 45 and slightly protrudes to the opposite side of the impeller body 35A, and the short cylindrical portion 46 and the impeller body are formed. An annular inlet portion leading to the suction port 12 of the casing 7 is formed between the hub 40 of 35A, the extension cylinder portion 24b inserted through the hub 40, and the hub 40.
また前記羽根車本体３５Ａの前記羽根部４１には、前記前面プレート３７Ａ側に突出する第１のボス部５０がそれぞれ一体に設けられ、前記前面プレート３７Ａには、それらの第１のボス部５０を係合させる第１の係止部５１が設けられる。この第１の係止部５１は、この実施の形態では凹部として形成されるが、貫通孔であってもよい。 Further, the blade portion 41 of the impeller body 35A is integrally provided with first boss portions 50 projecting toward the front plate 37A, and the front plate 37A is provided with the first boss portions 50 thereof. A first locking portion 51 is provided to engage the. The first locking portion 51 is formed as a recess in this embodiment, but may be a through hole.
このような遠心羽根車９Ａを製作するにあたっては、前記補間部４４で前記切り抜き孔４２を補間するととともに、前記第１のボス部５０を前記第１の係止部５１に係合させるようにして、前記羽根車本体３５Ａ、前記補間部材３６Ａおよび前記前面プレート３７Ａを組み合わせた状態で、前記第１の係止部５１に係合した状態の前記第１のボス部５０を前記前面プレート３７Ａに溶着するとともに、前記羽根車本体３５Ａの前記円形主板３９ならびに前記補間部材３６Ａの前記円形補助板４３の外周部を相互に溶着すればよい。 In manufacturing such a centrifugal impeller 9A, the cutout hole 42 is interpolated by the interpolation portion 44, and the first boss portion 50 is engaged with the first locking portion 51. , The first boss portion 50 in a state of being engaged with the first locking portion 51 in a state where the impeller body 35A, the interpolation member 36A, and the front plate 37A are combined is welded to the front plate 37A. At the same time, the outer peripheral portions of the circular main plate 39 of the impeller body 35A and the circular auxiliary plate 43 of the interpolation member 36A may be welded to each other.
次にこの第１の実施の形態の作用について説明すると、挿通孔３８を中央部に有する円形主板３９と、略截頭円錐形状の外面を有しつつ前記挿通孔３８に同軸に連なる筒状に形成されて前記円形主板３９から前記挿通孔３８の軸方向一側に突出するハブ４０と、前記ハブ４０側に向かって捩じり上げられた捩じり部分４１ａを前記ハブ４０側の端部に有しつつ前記挿通孔３８の軸線に沿う方向から見て相互に重なり合うのを避ける位置で前記円形主板３９および前記ハブ４０から前記軸方向一側に突出する複数の羽根部４１とが樹脂製の羽根車本体３５Ａに一体に設けられ、その羽根車本体３５Ａに、前記挿通孔３８の軸線に沿う方向での前記羽根部４１の投影を含む形状の切り抜き孔４２が形成され、当該切り抜き孔４２を埋めて前記円形主板３９、前記ハブ４０および前記羽根部４１の表面に滑らかに連なる補間部４４を有する樹脂製の補間部材３６Ａが、前記羽根車本体３５Ａに前記挿通孔３８の軸線に沿う他方側から結合される。 Next, the operation of the first embodiment will be described. A circular main plate 39 having an insertion hole 38 in the center and a tubular shape coaxially connected to the insertion hole 38 while having a substantially conical outer surface. A hub 40 that is formed and projects from the circular main plate 39 in one axial direction of the insertion hole 38 and a twisted portion 41a that is twisted up toward the hub 40 side are end portions on the hub 40 side. The circular main plate 39 and the plurality of blades 41 projecting from the hub 40 to one side in the axial direction are made of resin at positions that prevent them from overlapping each other when viewed from the direction along the axis of the insertion hole 38. A cutout hole 42 having a shape including a projection of the blade portion 41 in a direction along the axis of the insertion hole 38 is formed in the impeller body 35A integrally provided with the impeller body 35A, and the cutout hole 42 is formed. The circular main plate 39, the hub 40, and the resin interpolation member 36A having the interpolation portion 44 smoothly connected to the surface of the blade portion 41 are provided in the impeller body 35A along the axis of the insertion hole 38. Joined from the side.
したがって羽根部４１が捩じり部分４１ａを有した三次元形状のものであっても樹脂成形時のアンダーカット形状を回避することが可能であり、また切り抜き孔４２が樹脂製の補間部材３６Ａが有する補間部４４で埋められることにより、高効率な三次元形状の羽根部４１を有する遠心羽根車を低コストで薄型に製作することができる。またこのような遠心羽根車を成形する金型装置は、スライドコア、湾曲中子および引き抜き中子等や、それらを動かすための可動機構が不要となることから、製造コストが著しく低減される。しかも可動機構が不要となることで余裕が生じたスペースには複数個のキャビティを設けることができ、いわゆる「多数個取りの樹脂成形金型」を使用して遠心羽根車の部品を一挙に大量に製作することができることから、低コストで三次元形状の遠心羽根車を製作することができる。 Therefore, even if the blade portion 41 has a three-dimensional shape having a twisted portion 41a, it is possible to avoid the undercut shape at the time of resin molding, and the cutout hole 42 is made of resin. By being filled with the interpolating portion 44, a centrifugal impeller having a highly efficient three-dimensionally shaped blade portion 41 can be manufactured in a thin shape at low cost. Further, the mold device for forming such a centrifugal impeller does not require a slide core, a curved core, a drawing core, or a movable mechanism for moving them, so that the manufacturing cost is significantly reduced. Moreover, multiple cavities can be provided in the space where a movable mechanism is not required, and a large number of centrifugal impeller parts can be provided at once using a so-called "many-piece resin molding die". It is possible to manufacture a three-dimensional centrifugal impeller at low cost because it can be manufactured.
また前記補間部材３６Ａは、前記円形主板３９に前記挿通孔３８の軸方向他方側から当接する円形補助板４３と、当該円形補助板４３から突出する前記補間部４４とを一体に有し、前記補間部４４は、前記切り抜き孔４２のうち前記円形主板３９に対応する部位を埋める主板補間部分４４ａと、前記切り抜き孔４２のうち前記ハブ４０に対応する部分を埋めるハブ補間部分４４ｂとを有するように形成されるので、羽根部４１の捩じり部分４１ａのハブ４０への連設部にアンダーカットが生じないようにすることができる。 Further, the interpolation member 36A integrally has a circular auxiliary plate 43 that abuts on the circular main plate 39 from the other side in the axial direction of the insertion hole 38, and the interpolation portion 44 that protrudes from the circular auxiliary plate 43. The interpolation unit 44 has a main plate interpolation portion 44a for filling the portion of the cutout hole 42 corresponding to the circular main plate 39, and a hub interpolation portion 44b for filling the portion of the cutout hole 42 corresponding to the hub 40. Since it is formed in, it is possible to prevent undercuts from occurring in the portion of the blade portion 41 that is connected to the hub 40 by the twisted portion 41a.
さらに複数の前記羽根部４１の前記捩じり部分４１ａを除く部分に前記補間部材３６Ａとは反対側から樹脂製の前面プレート３７Ａが当接され、前記羽根部４１に一体に設けられて前記前面プレート３７Ａ側に突出する第１のボス部５０を係合させる第１の係止部５１が、前記前面プレート３７Ａに形成されるので、羽根車本体３５Ａおよび前面プレート３７Ａの接合が容易となる。 Further, a resin front plate 37A is brought into contact with a portion of the blade portions 41 other than the twisted portion 41a from the side opposite to the interpolation member 36A, and is integrally provided on the blade portion 41 to provide the front surface. Since the first locking portion 51 for engaging the first boss portion 50 projecting toward the plate 37A is formed on the front plate 37A, the impeller body 35A and the front plate 37A can be easily joined.
本発明の第２の実施の形態について図４を参照しながら説明するが、上記第１の実施の形態に対応する部分には同一の参照符号を付して図示するのみとし、詳細な説明は省略する。 The second embodiment of the present invention will be described with reference to FIG. 4, but the parts corresponding to the first embodiment are only shown with the same reference numerals, and detailed description thereof will be given. Omit.
遠心羽根車９Ｂは、羽根車本体３５Ｂと、前記支軸８の軸線方向に沿う両側から前記羽根車本体３５Ｂを挟む補間部材３６Ｂおよび前面プレート３７Ｂとが接合されて成り、前記羽根車本体３５Ｂ、前記補間部材３６Ｂおよび前記前面プレート３７Ｂは、それぞれ樹脂製である。 The centrifugal impeller 9B is formed by joining the impeller body 35B, an interpolation member 36B sandwiching the impeller body 35B from both sides along the axial direction of the support shaft 8, and a front plate 37B, and the impeller body 35B, The interpolation member 36B and the front plate 37B are each made of resin.
羽根車本体３５Ｂが有する複数の羽根部４１の切り抜き孔４２側に臨む側面には切欠き部５２がそれぞれ形成され、補間部材３６Ｂには、当該補間部材３６Ｂの円形補助板４３および補間部４４に連なる複数の第２のボス部５３が一体に設けられ、それらの第２のボス部５３は、前記切欠き部５２をそれぞれ埋めるようにして前記前面プレート３７Ｂ側に突出する。一方、前面プレート３７Ｂの環状板部４５には、前記第２のボス部５３を係合させる第２の係止部５４が形成され、この実施の形態で前記第２の係止部５４は、貫通孔として形成されるが、凹部として形成されていてもよい。 Notches 52 are formed on the side surfaces of the plurality of blade portions 41 of the impeller body 35B facing the cutout holes 42, and the interpolation member 36B has the circular auxiliary plate 43 and the interpolation portion 44 of the interpolation member 36B. A plurality of continuous second boss portions 53 are integrally provided, and the second boss portions 53 project toward the front plate 37B side so as to fill the notch portions 52, respectively. On the other hand, the annular plate portion 45 of the front plate 37B is formed with a second locking portion 54 for engaging the second boss portion 53, and in this embodiment, the second locking portion 54 is Although it is formed as a through hole, it may be formed as a recess.
このような遠心羽根車９Ｂを製作するにあたっては、前記補間部材３６Ｂの補間部４４で前記切り抜き孔４２を補間するととともに、前記第２のボス部５３で前記切欠き部５２を埋めるととともに前記第２の係止部５４にそれらの第２のボス部５３を係合させるようにして、前記羽根車本体３５Ｂ、前記補間部材３６Ｂおよび前記前面プレート３７Ｂを組合わせた状態で、第２の係止部５４に係合した状態の前記第２のボス部５３を前記前面プレート３７Ｂに溶着すればよく、さらにそれに加えて、前記羽根車本体３５Ｂの前記円形主板３９ならびに前記補間部材３６Ｂの前記円形補助板４３の外周部を相互に溶着するようにしてもよい。 In manufacturing such a centrifugal impeller 9B, the cutout hole 42 is interpolated by the interpolation portion 44 of the interpolation member 36B, the notch portion 52 is filled with the second boss portion 53, and the notch portion 52 is filled. The second locking is performed in a state where the impeller body 35B, the interpolation member 36B, and the front plate 37B are combined so that the second boss portion 53 is engaged with the locking portion 54 of 2. The second boss portion 53 in a state of being engaged with the portion 54 may be welded to the front plate 37B, and in addition, the circular main plate 39 of the impeller body 35B and the circular auxiliary of the interpolation member 36B. The outer peripheral portions of the plate 43 may be welded to each other.
この第２の実施の形態によれば、上述の第１の実施の形態と同様の効果を奏することができるとともに、前面プレート３７Ｂに形成される第２の係止部５４に、羽根部４１の切り抜き孔４２側に臨む側面に形成される切欠き部５２を埋めるようにして補間部材３６Ｂに一体に設けられる第２のボス部５３が係合されるので、前面プレート３７Ｂ、羽根車本体３５Ｂおよび補間部材３６Ｂを，それらの相対位置を定めて接合することが容易となる。 According to this second embodiment, the same effect as that of the first embodiment described above can be obtained, and the blade portion 41 is attached to the second locking portion 54 formed on the front plate 37B. Since the second boss portion 53 integrally provided with the interpolation member 36B is engaged so as to fill the notch portion 52 formed on the side surface facing the cutout hole 42 side, the front plate 37B, the impeller body 35B and the impeller body 35B are engaged. It becomes easy to determine the relative positions of the interpolation members 36B and join them.
ところで上述の実施の形態では、前記円形補助板４３は前記円形主板３９よりもわずかに小さな外径を有するように形成され、前記円形主板３９の外周には、当該円形主板３８に当接した前記円形補助板４３の外周を覆う筒状部３９ａが一体に設けられるようにしたが、これに限定されることなく、前記円形補助板４３が前記円形主板３９と同径に形成され、前記円形主板３９の外周に前記筒状部３９ａが設けられない構成としてもよい。この場合、前記円形補助板４３および前記円形主板３９の合わせ目が遠心羽根車９Ａ，９Ｂの外周に露呈される。すなわち前記円形補助板４３を前記円形主板３９に溶着する際の溶着工具（溶接機）の当て方向を遠心羽根車９Ａ，９Ｂの周面に設定することができる。 By the way, in the above-described embodiment, the circular auxiliary plate 43 is formed so as to have an outer diameter slightly smaller than that of the circular main plate 39, and the outer periphery of the circular main plate 39 is in contact with the circular main plate 38. The tubular portion 39a that covers the outer periphery of the circular auxiliary plate 43 is integrally provided, but the circular auxiliary plate 43 is formed to have the same diameter as the circular main plate 39, and the circular main plate 43 is not limited to this. The tubular portion 39a may not be provided on the outer periphery of the 39. In this case, the seams of the circular auxiliary plate 43 and the circular main plate 39 are exposed on the outer periphery of the centrifugal impellers 9A and 9B. That is, the contact direction of the welding tool (welding machine) when welding the circular auxiliary plate 43 to the circular main plate 39 can be set on the peripheral surfaces of the centrifugal impellers 9A and 9B.
本発明のさらに他の実施の形態として、羽根車本体の羽根部４１に一体に設けられる第１のボス部５０を係合させる第１の係止部５１と、補間部材に一体に設けられる第２のボス部を係合させる第２の係止部５４とが共に前面プレートに形成されるようにしてもよい。 As yet another embodiment of the present invention, a first locking portion 51 for engaging the first boss portion 50 integrally provided with the blade portion 41 of the impeller body and a first locking portion 51 integrally provided with the interpolation member. A second locking portion 54 that engages the two boss portions may be formed on the front plate together.
以上、本発明の実施の形態について説明したが、本発明は上記実施の形態に限定されるものではなく、特許請求の範囲に記載された本発明を逸脱することなく種々の設計変更を行うことが可能である。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various design changes are made without departing from the present invention described in the claims. Is possible.
８・・・支軸
９Ａ，９Ｂ・・・遠心羽根車
３５Ａ，３５Ｂ・・・羽根車本体
３６Ａ，３６Ｂ・・・補間部材
３３７Ａ，３７Ｂ・・・前面プレート
３８・・・挿通孔
３９・・・円形主板
４０・・・ハブ
４１・・・羽根部
４１ａ・・・捩じり部分
４２・・・切り抜き孔
４３・・・円形補助板
４４・・・補間部
４４ａ・・・主板補間部分
４４ｂ・・・ハブ補間部分
５０，５３・・・ボス部
５１，５４・・・係止部
５２・・・切欠き部
8 ... Support shafts 9A, 9B ... Centrifugal impellers 35A, 35B ... Impeller bodies 36A, 36B ... Interpolating members 337A, 37B ... Front plate 38 ... Insertion holes 39 ... Circular main plate 40 ... Hub 41 ... Blade part 41a ... Twisted part 42 ... Cutout hole 43 ... Circular auxiliary plate 44 ... Interpolating part 44a ... Main plate Interpolating part 44b ... -Hub interpolation part 50, 53 ... Boss part 51, 54 ... Locking part 52 ... Notch part
Claims (4)
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| JP2019054685A JP7185572B2 (en) | 2019-03-22 | 2019-03-22 | centrifugal impeller |
| CN202010200590.8A CN111720360B (en) | 2019-03-22 | 2020-03-20 | Centrifugal impeller |
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| JP2019054685A JP7185572B2 (en) | 2019-03-22 | 2019-03-22 | centrifugal impeller |
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| JP2020153342A true JP2020153342A (en) | 2020-09-24 |
| JP7185572B2 JP7185572B2 (en) | 2022-12-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009065894A1 (en) * | 2007-11-20 | 2009-05-28 | Mann+Hummel Gmbh | Compressor wheel of a centrifugal compressor and method for producing said compressor wheel |
| US20170321705A1 (en) * | 2016-05-05 | 2017-11-09 | Tti (Macao Commercial Offshore) Limited | Mixed flow fan |
| JP2017207073A (en) * | 2013-12-27 | 2017-11-24 | 本田技研工業株式会社 | Impeller |
| DE102017128093A1 (en) * | 2017-11-28 | 2019-05-29 | Miele & Cie. Kg | Impeller for use in a turbomachine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836876Y2 (en) * | 1979-05-17 | 1983-08-19 | 三菱電機株式会社 | centrifugal impeller |
| JPH0178287U (en) * | 1987-11-13 | 1989-05-25 | ||
| DE4427115C1 (en) * | 1994-07-30 | 1995-04-06 | Braun Ag | Impeller for a radial-flow fan |
| JP2003336598A (en) * | 2002-05-17 | 2003-11-28 | Toshiba Tec Corp | Fan |
| JP2005291116A (en) * | 2004-03-31 | 2005-10-20 | Yamada Seisakusho Co Ltd | Impeller for water pump |
| JP2010174718A (en) * | 2009-01-29 | 2010-08-12 | Panasonic Corp | Electric blower and vacuum cleaner using the same |
| JP5245995B2 (en) * | 2009-04-02 | 2013-07-24 | パナソニック株式会社 | Electric blower and electric vacuum cleaner using the same |
| KR102289384B1 (en) * | 2014-12-18 | 2021-08-13 | 삼성전자주식회사 | Centrifugal fan assembly |
| JP2018150865A (en) * | 2017-03-13 | 2018-09-27 | 日清紡メカトロニクス株式会社 | Turbofan |
-
2019
- 2019-03-22 JP JP2019054685A patent/JP7185572B2/en active Active
-
2020
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009065894A1 (en) * | 2007-11-20 | 2009-05-28 | Mann+Hummel Gmbh | Compressor wheel of a centrifugal compressor and method for producing said compressor wheel |
| JP2017207073A (en) * | 2013-12-27 | 2017-11-24 | 本田技研工業株式会社 | Impeller |
| US20170321705A1 (en) * | 2016-05-05 | 2017-11-09 | Tti (Macao Commercial Offshore) Limited | Mixed flow fan |
| DE102017128093A1 (en) * | 2017-11-28 | 2019-05-29 | Miele & Cie. Kg | Impeller for use in a turbomachine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111720360B (en) | 2022-06-24 |
| JP7185572B2 (en) | 2022-12-07 |
| CN111720360A (en) | 2020-09-29 |
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