JP2002310096A - Resin fan for heat exchanger - Google Patents
Resin fan for heat exchangerInfo
- Publication number
- JP2002310096A JP2002310096A JP2001113314A JP2001113314A JP2002310096A JP 2002310096 A JP2002310096 A JP 2002310096A JP 2001113314 A JP2001113314 A JP 2001113314A JP 2001113314 A JP2001113314 A JP 2001113314A JP 2002310096 A JP2002310096 A JP 2002310096A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical ring
- fan
- axis
- heat exchanger
- axial direction
- 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.)
- Pending
Links
Classifications
-
- 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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
-
- 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
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、主として自動車用
熱交換器に取付けられる樹脂製ファンに関し、より詳し
くは、その翼部の外周に筒状リングが一体に形成された
ものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin fan mainly mounted on a heat exchanger for automobiles, and more particularly to a fan having a tubular ring integrally formed on the outer periphery of its wing.
【０００２】[0002]
【従来の技術】外周に筒状リングを有する従来の熱交換
器用樹脂製ファンは、図３及び図４の如く形成されてい
た。即ち、中心に回転の軸線を有するボス部１の外周に
複数の翼部２が放射状に一体形成され、その翼部２の半
径方向先端縁間が軸直角断面円形の筒状リング３で一体
に連結されている。この筒状リング３は、軸線方向両縁
部がいわゆるベルマウス状に曲折形成されている。即
ち、筒状リング３は軸線方向に略同一肉厚でその両縁部
は外側に拡開するように湾曲形成されている。このよう
なベルマウス付きファンは、筒状リング３の内側では、
その両端縁における空気の流出入が円滑に行われ、比較
的低騒音で起風力が高いものである。2. Description of the Related Art A conventional resin fan for a heat exchanger having a cylindrical ring on the outer periphery is formed as shown in FIGS. That is, a plurality of wings 2 are integrally formed radially on the outer periphery of a boss 1 having a rotation axis at the center, and the wings 2 are integrally formed by a cylindrical ring 3 having a circular section perpendicular to the axis at the radially leading edges. Are linked. The cylindrical ring 3 has both edges in the axial direction bent in a so-called bell-mouth shape. That is, the cylindrical ring 3 has substantially the same thickness in the axial direction, and both edges thereof are curved so as to expand outward. Such a bell-mouthed fan has, inside the cylindrical ring 3,
The air flows in and out of the both edges smoothly, the noise is relatively low and the wind force is high.
【０００３】[0003]
【発明が解決しようとする課題】従来型の樹脂製ファン
は、その筒状リング３の外面側が周方向に溝状に形成さ
れているので、次の２つの欠点があった。先ず、筒状リ
ング３が軸線の回りに回転するとき、筒状リング３の外
面に接触する空気をより多く回転させ、その分だけ外面
側の騒音が高くなっていた。また、筒状リング３が環状
溝に形成されているため、射出成形用金型はその型抜き
のため筒状リング３側において半径方向に移動して型抜
きをする必要があり、金型が複雑となる。そのため、フ
ァンの製造コストを上昇させていた。さらに、筒状リン
グ３の湾曲部分が半径方向外側に大きく突出しているた
め、同一翼長のファンの最大直径が大きくなり、シュラ
ンド等と干渉する虞がある。そこで本発明は、これらの
課題を解決することを目的とし、バランスが良く低騒音
で且つ金型を単純化できる樹脂製ファンを提供すること
を課題とする。The conventional resin fan has the following two drawbacks because the outer surface of the cylindrical ring 3 is formed in a groove shape in the circumferential direction. First, when the cylindrical ring 3 rotates around the axis, the air contacting the outer surface of the cylindrical ring 3 is rotated more, and the noise on the outer surface is increased by that much. In addition, since the cylindrical ring 3 is formed in the annular groove, it is necessary to move the injection molding die in the radial direction on the side of the cylindrical ring 3 to die-cut the die. It gets complicated. Therefore, the manufacturing cost of the fan has been increased. Furthermore, since the curved portion of the cylindrical ring 3 protrudes largely outward in the radial direction, the maximum diameter of a fan having the same blade length increases, and there is a possibility that the fan will interfere with a shland or the like. Therefore, an object of the present invention is to provide a resin fan that is well-balanced, has low noise, and can simplify a mold.
【０００４】[0004]
【課題を解決するための手段】本発明は、中心に回転の
軸線を有するボス部(1) の外周に、複数の翼部(2) が放
射方向に一体に突設されると共に、それら翼部(2) の半
径方向先端縁間が軸直角断面円形の筒状リング(3) で一
体に連結されてなる熱交換器用樹脂製ファンにおいて、
筒状リング(3) の内周面(4) は、前記軸線方向の両縁部
(4a)(4b)がその縁ほど直径が次第に大に拡開された滑ら
かな曲面からなり、中間部(4c)は前記軸線に平行な内面
に形成され、筒状リング(3) の外周面(5) は、前記軸線
に沿う全長で、軸線に平行な周面に形成されたことを特
徴とする熱交換器用樹脂製ファンである。According to the present invention, a plurality of wings (2) are integrally provided in the radial direction on the outer periphery of a boss (1) having a rotation axis at the center. In a resin fan for a heat exchanger, a portion between the radial leading edges of the portion (2) is integrally connected by a cylindrical ring (3) having a circular cross section perpendicular to the axis.
The inner peripheral surface (4) of the cylindrical ring (3) is
(4a) and (4b) consist of a smooth curved surface whose diameter is gradually enlarged toward the edge, and the intermediate portion (4c) is formed on the inner surface parallel to the axis, and the outer peripheral surface of the cylindrical ring (3). (5) A resin fan for a heat exchanger, wherein the fan is formed on a peripheral surface parallel to the axis along the entire length thereof.
【０００５】[0005]
【発明の実施の形態】次に、図面に基づいて本発明の実
施の形態につき説明する。図１は本発明の熱交換器用樹
脂製ファンの軸線上の断面図及びその部分拡大図であ
り、図２は図１のII−II矢視図である。なお、従来型の
熱交換器用樹脂製ファンと同一部材については同一番号
を付している。この熱交換器用樹脂製ファンは、中心に
軸線を有する鍋型に形成されたボス部１の外周に複数の
翼部２が放射方向に一体に突設されると共に、その翼部
２の半径方向先端縁間が軸直角断面円形の筒状リング３
で一体に連結されている。そして筒状リング３の内周面
４の前面側である縁部４ａ及び後面側である縁部４ｂ
は、その端縁ほど直径が次第に大に拡大された滑らかな
曲面からなる。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view on the axis of a resin fan for a heat exchanger of the present invention and a partially enlarged view thereof, and FIG. 2 is a view taken along the line II-II of FIG. The same members as those of the conventional heat exchanger resin fan are denoted by the same reference numerals. This resin fan for a heat exchanger has a plurality of wings 2 integrally projecting radially around an outer periphery of a boss 1 formed in a pot shape having an axis at the center, and a radial direction of the wings 2. Cylindrical ring 3 with a circular section perpendicular to the axis between the leading edges
Are connected together. An edge 4a which is a front side of the inner peripheral surface 4 of the cylindrical ring 3 and an edge 4b which is a rear side thereof
Consists of a smooth curved surface whose diameter is gradually enlarged toward its end.
【０００６】前面側の縁部４ａは、その先端側がＯ2 を
中心とする回転曲面で形成され、中間部４ｃ側がＯ1 を
中心とする回転曲面で形成されている。また、後面側の
縁部４ｂはＯ3 を中心とする回転曲面で形成されてい
る。また、中間部４ｃはボス部１の軸線に平行な内面に
形成されている。そして、翼部２の半径方向先端縁が中
間部４ｃの両側に一致されている。また、筒状リング３
の外面は、その全長で軸線に平行に形成されている。こ
のようにしてなる樹脂製ファンの前面側に熱交換器６が
配置され、ボス部１の中心に回転軸が嵌着固定され、モ
ータまたはエンジンにより駆動されて、図１の左方から
右方に起風されるものである。[0006] the front side edge portion 4a has its front end side is formed by rotating a curved surface around the O 2, and is formed by rotating a curved surface around the intermediate portion 4c side is O 1. In addition, the rear edge 4b is formed as a rotating curved surface centered on O 3 . The intermediate portion 4c is formed on an inner surface parallel to the axis of the boss 1. Then, the radial leading edge of the wing portion 2 is aligned with both sides of the intermediate portion 4c. In addition, the cylindrical ring 3
Is formed parallel to the axis over its entire length. A heat exchanger 6 is disposed on the front side of the resin fan thus formed, and a rotating shaft is fitted and fixed to the center of the boss portion 1 and driven by a motor or an engine to move from the left to the right in FIG. It is a blast of wind.
【０００７】このような樹脂製ファンは、その外面の全
長が軸線に平行であるので、その射出成形用金型とし
て、ボス部１の軸線方向に分離する可動型及び固定型を
用いることができる。なお、筒状リング３の中間部４ｃ
部分の厚みは、図３における従来型の筒状リング３の厚
みと同程度に形成されるか、それより僅かに厚肉に形成
される。何れにしても、その最大外直径が従来のものよ
りも小さく形成される。In such a resin fan, since the entire length of its outer surface is parallel to the axis, a movable mold and a fixed mold which can be separated in the axial direction of the boss portion 1 can be used as injection molding dies. . The intermediate portion 4c of the cylindrical ring 3
The thickness of the portion is formed to be substantially the same as the thickness of the conventional cylindrical ring 3 in FIG. 3 or slightly thicker. In any case, the maximum outer diameter is formed smaller than the conventional one.
【０００８】[0008]
【発明の作用・効果】本発明の熱交換器用樹脂製ファン
は、その筒状リング３の内周面４の両縁部４ａ，４ｂが
端ほど次第に直径が大に拡開された滑らかな曲面からな
り、その筒状リング３の内周面を軸線方向に流通する空
気流の出入を円滑に行い、その縁部で渦が生じることを
防止できる。それと共に、筒状リング３の外周面は軸線
に沿う全長でその軸線に平行に形成されているので、低
騒音で低コストな熱交換器用樹脂製ファンを提供でき
る。即ち、従来の如く筒状リング３の外周面側が溝状に
湾曲していると、筒状リング３の回転に伴ってより多く
の空気が周方向に回転するので、その分だけ騒音を発生
するが、本発明の樹脂製ファンは筒状リング３の外面側
に溝部が存在しないため、その外周面５から生じる騒音
を可及的に少なくし得る。さらには樹脂製ファンの射出
成形用金型において、アンダーカット部がなくなり、ボ
ス部１の軸線方向に一対の雄型と雌型とを相対移動して
射出成形後の型抜きができるものとなる。そのため金型
が単純化し、低コストの樹脂製ファンを提供できる。The resin fan for a heat exchanger according to the present invention has a smooth curved surface in which both edges 4a, 4b of the inner peripheral surface 4 of the cylindrical ring 3 are gradually expanded in diameter toward the end. The air flow circulating in the axial direction on the inner peripheral surface of the cylindrical ring 3 can smoothly flow in and out, and the generation of a vortex at the edge can be prevented. At the same time, since the outer peripheral surface of the cylindrical ring 3 is formed in parallel with the entire length along the axis, a low-noise and low-cost resin fan for a heat exchanger can be provided. That is, if the outer peripheral surface side of the cylindrical ring 3 is curved in a groove shape as in the related art, more air is rotated in the circumferential direction with the rotation of the cylindrical ring 3, so that noise is generated accordingly. However, since the resin fan of the present invention has no groove on the outer surface side of the cylindrical ring 3, noise generated from the outer peripheral surface 5 can be reduced as much as possible. Further, in the injection molding die of the resin fan, the undercut portion is eliminated, and the pair of male and female dies can be relatively moved in the axial direction of the boss portion 1 so that the die can be removed after the injection molding. . Therefore, the mold is simplified, and a low-cost resin fan can be provided.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の熱交換器用樹脂製ファンの軸線を通る
断面図及びそのＢ部拡大図。FIG. 1 is a cross-sectional view passing through an axis of a resin fan for a heat exchanger of the present invention and an enlarged view of a B portion thereof.
【図２】図１のII−II矢視図。FIG. 2 is a view taken in the direction of arrows II-II in FIG.
【図３】従来型熱交換器用樹脂製ファンの断面図。FIG. 3 is a sectional view of a conventional resin fan for a heat exchanger.
【図４】図３のIV−IV矢視図。FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 3;
１ ボス部 ２ 翼部 ３ 筒状リング ４ 内周面 ４ａ 縁部 ４ｂ 縁部 ４ｃ 中間部 ５ 外周面 ６ 熱交換器 DESCRIPTION OF SYMBOLS 1 Boss part 2 Wing part 3 Cylindrical ring 4 Inner peripheral surface 4a Edge 4b Edge 4c Intermediate part 5 Outer peripheral surface 6 Heat exchanger
フロントページの続き (72)発明者 柏木 和彦 東京都渋谷区代々木三丁目25番３号 東洋 ラジエーター株式会社内 Ｆターム(参考） 3H033 AA02 AA18 BB02 BB08 CC01 DD10 DD25 DD26 EE06 EE08 3H035 CC01 CC07 Continuation of front page (72) Inventor Kazuhiko Kashiwagi 3-25-3 Yoyogi, Shibuya-ku, Tokyo F-term in Toyo Radiator Co., Ltd. (reference) 3H033 AA02 AA18 BB02 BB08 CC01 DD10 DD25 DD26 EE06 EE08 3H035 CC01 CC07
Claims (1)
外周に、複数の翼部(2) が放射方向に一体に突設される
と共に、それら翼部(2) の半径方向先端縁間が軸直角断
面円形の筒状リング(3) で一体に連結されてなる熱交換
器用樹脂製ファンにおいて、 筒状リング(3) の内周面(4) は、前記軸線方向の両縁部
(4a)(4b)がその縁ほど直径が次第に大に拡開された滑ら
かな曲面からなり、中間部(4c)は前記軸線に平行な内面
に形成され、 筒状リング(3) の外周面(5) は、前記軸線に沿う全長
で、軸線に平行な周面に形成されたことを特徴とする熱
交換器用樹脂製ファン。A plurality of wings (2) are integrally provided on the outer periphery of a boss (1) having a rotation axis at the center thereof in a radial direction, and the wings (2) have radial tips. In a resin fan for a heat exchanger, the edges of which are integrally connected by a cylindrical ring (3) having a circular cross section perpendicular to the axis, the inner peripheral surface (4) of the cylindrical ring (3) has two edges in the axial direction. Department
(4a) and (4b) are smooth curved surfaces whose diameters are gradually enlarged toward the edges, and the intermediate portion (4c) is formed on the inner surface parallel to the axis, and the outer peripheral surface of the cylindrical ring (3). (5) A resin fan for a heat exchanger, wherein the fan is formed on a peripheral surface parallel to the axis along the entire length along the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001113314A JP2002310096A (en) | 2001-04-11 | 2001-04-11 | Resin fan for heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001113314A JP2002310096A (en) | 2001-04-11 | 2001-04-11 | Resin fan for heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002310096A true JP2002310096A (en) | 2002-10-23 |
Family
ID=18964556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001113314A Pending JP2002310096A (en) | 2001-04-11 | 2001-04-11 | Resin fan for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002310096A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005264842A (en) * | 2004-03-19 | 2005-09-29 | Komatsu Ltd | Cooling fan and its segment |
| CN114751511A (en) * | 2022-05-24 | 2022-07-15 | 湖南五方环境科技研究院有限公司 | Sewage treatment system and method based on vortex separation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5290652U (en) * | 1975-12-29 | 1977-07-06 | ||
| JPH10339296A (en) * | 1997-05-30 | 1998-12-22 | Hewlett Packard Co <Hp> | Fan |
-
2001
- 2001-04-11 JP JP2001113314A patent/JP2002310096A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5290652U (en) * | 1975-12-29 | 1977-07-06 | ||
| JPH10339296A (en) * | 1997-05-30 | 1998-12-22 | Hewlett Packard Co <Hp> | Fan |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005264842A (en) * | 2004-03-19 | 2005-09-29 | Komatsu Ltd | Cooling fan and its segment |
| CN114751511A (en) * | 2022-05-24 | 2022-07-15 | 湖南五方环境科技研究院有限公司 | Sewage treatment system and method based on vortex separation |
| CN114751511B (en) * | 2022-05-24 | 2023-02-17 | 湖南五方环境科技研究院有限公司 | Sewage treatment system and method based on vortex separation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4859674B2 (en) | Centrifugal blower | |
| JP3232844B2 (en) | Blower | |
| US7615897B2 (en) | Cooling device of motor | |
| JP2019504960A (en) | Engine cooling fan housing shroud with unobstructed exhaust | |
| JP2002508478A (en) | Quiet small radiator cooling fan | |
| JPH04503391A (en) | Axial flow ring fan with reduced volume | |
| JP4481414B2 (en) | Fan seal structure | |
| WO2023202327A1 (en) | Combined fan blade structure and air outlet device | |
| JP2002310096A (en) | Resin fan for heat exchanger | |
| JPH08240197A (en) | Axial-flow fan | |
| JP2002250298A (en) | Propeller fan | |
| JP2000120590A (en) | Fan assembly | |
| JPH10141285A (en) | Fan assembly | |
| KR100420355B1 (en) | Turbo fan in air-conditioner | |
| JP2002347080A (en) | Method and mold for molding centrifugal fan | |
| JP3050461B2 (en) | Impeller of vortex blower and method of manufacturing the same | |
| JPH06336999A (en) | Axial fan | |
| JP2006214338A (en) | Centrifugal multiblade fan | |
| JPH0533797A (en) | Push-in type axial fan | |
| KR100815026B1 (en) | Motor cooling device | |
| JP2004211666A (en) | Blower fan | |
| JPS6318800Y2 (en) | ||
| KR100551582B1 (en) | Axial Flow Fan | |
| JP2002106351A (en) | Seal structure of fan | |
| JPH0417839Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080303 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20101208 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20101214 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20110510 |