JPH0412199A - Blower impeller - Google Patents
Blower impellerInfo
- Publication number
- JPH0412199A JPH0412199A JP11334490A JP11334490A JPH0412199A JP H0412199 A JPH0412199 A JP H0412199A JP 11334490 A JP11334490 A JP 11334490A JP 11334490 A JP11334490 A JP 11334490A JP H0412199 A JPH0412199 A JP H0412199A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- porous
- porous member
- blower impeller
- synthetic resin
- 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
- 239000011148 porous material Substances 0.000 claims abstract description 42
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 19
- 239000000057 synthetic resin Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 239000006261 foam material Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 241000270666 Testudines Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は送風機の低騒音化技術に関すム従来の技術
送風機の低騒音化技術の一つとして、従来より、羽根車
の翼の材料として多孔質材料を利用する方法が知られて
いも
その一例（特開昭６．３−３２１９６号公報）を、第１
３図 第１４図に示す。ここでは シロッコファンを例
にとって説明すも この送風機で（山上部固定フレーム
ｂと下部ディスクＣの間に翼ａ爪 接着、はめあ吹 溶
接等により配設される構造であり、この例では その翼
ａの全体を、今風合成樹脂もしくはセラミックス等の多
孔質材料テ構成していも
その翼の断面図が第１４図であ４ その翼の断面ｄにお
いて、下面より上面に連通ずる無数の孔が形成されてお
り、翼の下面の空気流の一部をｅのように上面に導き、
表面の境界層の比較的低速な空気流を加速す４ ｈは翼
上面の空気流を示しｆおよびｅは翼上面各部の空気流の
速度分布を示す。第１４図に示されるようへ 空気流ｅ
の効果により、 ｆに示す速度分布ｉ；Ｌ ｇに示す
ようなより均一な分布となり、翼面からの剥離は防止さ
れ 空気流の乱れによる騒音を低減するとされていも
発明が解決しようとする課題
しかし 上下面が連通している多孔質材料は通常の材料
に比べて、成形が困難で、強度も不足していも このよ
うな材料で、送風機の翼を構成すれ（′ｉ、翼面形状の
寸法精度が悪く所定の性能が得られなかったり、組み立
てに時間がかかり著しく高価なものになるは力＼ 完成
して耘 強度が不足するなど、実用化には多くの課題を
残してい九本発明は このような従来の課題を解決しよ
うとするもので、低騒音化を図るためへ 多孔質材料に
よって翼を構成しなが収 製造が容易で生産性が高く、
強度上も問題のない送風機の構乳 製造法を提供するも
のであム
課題を解決するための手段
上記課題を解決するために本発明は 送風機の羽根車を
構成する複数枚の翼の外周縁部分を除く一部の範囲に
翼の圧力面側と負圧面側を貫通する多数の連続気孔を持
つ多孔質材料を使用し 外周縁部分を含む残りの部分に
非多孔質の合成樹脂を使用し 両者を一体に成形したも
のである。[Detailed Description of the Invention] Industrial Field of Application The present invention relates to technology for reducing the noise of blowers.Conventional TechnologyAs one of the technologies for reducing the noise of blowers, porous materials have been conventionally used as the material for impeller blades. Although methods of using materials are known, one example (Japanese Unexamined Patent Publication No. 6.3-32196) is
Figure 3 Shown in Figure 14. Here, we will explain using a sirocco fan as an example, but this blower has a structure in which the blades (A) are installed between the upper fixed frame (B) and the lower disk (C) by gluing, fitting, welding, etc. In this example, the blades are Even if the entire wing a is made of a porous material such as modern synthetic resin or ceramics, the cross-sectional view of the wing is shown in Figure 14.4 In the cross-section d of the wing, countless pores are formed that communicate from the lower surface to the upper surface. A part of the airflow on the lower surface of the wing is guided to the upper surface as shown in e.
Accelerating relatively low-velocity airflow in the boundary layer on the surface 4 h indicates the airflow on the upper surface of the wing, and f and e indicate the velocity distribution of the airflow on each part of the upper surface of the wing. Air flow e as shown in Figure 14
As a result of the effect, the velocity distribution i;L shown as f becomes a more uniform distribution as shown in g, preventing separation from the blade surface and reducing noise caused by turbulence of airflow.However, the problem to be solved by the invention is However, porous materials whose upper and lower surfaces are connected are difficult to form and lack strength compared to ordinary materials. There are many issues that remain in practical application, such as poor dimensional accuracy and inability to achieve the desired performance, and the fact that assembly is time-consuming and extremely expensive, resulting in insufficient strength. is an attempt to solve these conventional problems, and in order to reduce noise, the blade is made of porous material, which is easy to manufacture and has high productivity.
An object of the present invention is to provide a method for manufacturing a structure of a blower that does not have any problems in terms of strength. to a part of the range excluding the part
A porous material with a large number of continuous pores penetrating the pressure side and suction side of the blade is used, and non-porous synthetic resin is used for the remaining parts including the outer periphery, and both are integrally molded. be.
作用
上記手段による作用は 以下の通りであも本発明は 送
風機の羽根車を構成する複数枚の翼の外周縁部分を除く
一部の範囲に限定して、翼の圧力面側と負圧面側を貫通
する多数の連続気孔を持つ多孔質材料を使用し 外周縁
部分を含む残りの部分の非多孔質の合成樹脂で取り囲む
構造にすることにより通常の材料に比べて強度が不足し
ている多孔質材の欠点を捕えるは力＼ 複雑な翼面形状
Ｌ 形状が正確に形成された外周縁部の非多孔質材に支
持されて、多孔質材によっても形成することができる。Effects The effects of the above means are as follows, but the present invention is limited to a part of the area excluding the outer periphery of the plurality of blades constituting the impeller of the blower, on the pressure side and suction side of the blades. By using a porous material with a large number of continuous pores penetrating the pores, and surrounding the remaining part, including the outer periphery, with non-porous synthetic resin, the pores, which lack strength compared to ordinary materials, are removed. Capturing the defects of solid materials is force ＼ Complicated wing surface shape L It can also be formed from a porous material, supported by a non-porous material at the outer periphery with an accurately formed shape.
また 多孔質材部を非多孔質材の成形時に一体に成形す
るために 短時間で安価番へ 低騒音の送風機羽根車
を提供することができるものであも実施例
以下 本発明の実施例について図面を参考に説明する。In addition, since the porous material part is integrally molded when molding the non-porous material, it is possible to provide a low-noise blower impeller in a short period of time. This will be explained with reference to the drawings.
ここでは 斜流ファンへの適用を例にとって説明すも
まず、第１図〜第３図は 本発明の第１の実施例につい
て説明したものである。Here, we will explain the application to a mixed flow fan as an example.
First, FIGS. 1 to 3 illustrate a first embodiment of the present invention.
第２図は本発明の羽根車を含む送風機の一部切り欠き断
面医 第１図（ａ）、 （ｂ）は送風機羽根車の斜視
皿 および、前記羽根車の翼断面図であム
羽根車１（友 電動機２に対して回転自在に支持さ札
かス エアガイダー３に対し所定の位置にくるよう設置
されている。また 電動機２（表 電動機支持台４に取
り付は固定されていも前記電動機２により、所定の回転
方向に前記羽根車１が駆動されると、空気は第２図のＡ
から吸い込まｔｌ、Ｂの方向に吹き出されて送風機とし
て作動すム
また 第１図（ａ）、 （ｂ）に示されるごとく、羽
根車１１よ 円錐台上のハブ部５、前記ハブ部５の外周
部に取り付けられている翼６、および、羽根車ボス部８
より一体に構成されていもまた 前記翼６は 外周縁部
分を除く一部の範囲に 翼の圧力面側と負圧面側を貫通
する多数の連続気孔を持つ多孔質材料部材７を使用し
外周縁部分を含む残りの部分には 前記ハブ部等を形成
しているのと同じ非多孔質の合成樹脂を使用し両者は一
体に成形されていム ここて 多孔質材料としては 合
成樹脂の粉末を集積加熱して、粉末どうしを部分的に溶
着させて、連続気孔を形成した材料（樹脂焼結材料と略
すも ）を使用していも その微細構造の模式図を第４
図に示し九な紅 多孔質材料を翼の一部に使用すること
によって低騒音化が可能になる機構にづいては以下のよ
うに考えられも
前記構成により羽根車１が回転すると、空気は前記羽根
車１の翼前縁部６ａから流入し 前記翼６の圧力面側７
ｃ、負圧面側７ｄに沿って流れ翼後縁部６ｂから流出し
所定の方向へ吹き圧され４ まｆ−翼面上でＣ社
流れの境界層の圧力変獣 層流から乱流に移行する際に
発生する圧力変動が生じるとともく 前記翼６の動作条
件によっては 翼６からの流れの剥離に伴う圧力変動が
励起されも
しかしなが収 本発明の送風機羽根車は 前記のごとく
、前記翼６の外周縁部分を除く一部の範囲を多孔質部材
７にて形成しているためζζ 第３図に示されるごとく
流れ方丈 前記多孔質部材７の面上を通過する際に翼面
上で発生する圧力変動（友以下のような機構で緩和され
ていも すなわ板連続気孔の微細穴７ｅを介して、前記
翼圧力面側７ｃと負圧面側７ｄが連通し 空気が出入り
するためζミ 前記圧力面側７ｃの圧力が高くなった場
合（友 前記負圧面側７ｄに空気が流出して変動が抑制
さ扛 また逆（ミ 前記負圧面側７ｄの圧力が高くなっ
た場合は 前記圧力面側７ｃに空気が流出して変動が抑
制される機構になっていも結果的（Ｑ 前記翼面上で発
生する圧力変動に基づく騒音は 圧力変動が小さくなる
ため低減されも
ところで、樹脂焼結材料による多孔質部材７線路半円弧
状の切り火き９を複数個有しており、この部分（上 前
記ハブ部等を形成しているのと同じ非多孔質の合成樹脂
で埋められている。FIG. 2 is a partially cutaway cross-sectional view of a blower including the impeller of the present invention. FIGS. 1 (Friend: A plate rotatably supported with respect to the electric motor 2.
It is installed at a predetermined position relative to the air guider 3. Furthermore, even if the motor 2 is fixedly attached to the motor support base 4, when the impeller 1 is driven in a predetermined rotational direction by the motor 2, the air is
As shown in FIGS. 1(a) and 1(b), the impeller 11, the hub portion 5 on the truncated cone, and the outer periphery of the hub portion 5 are The blade 6 attached to the part and the impeller boss part 8
Even if the blade 6 is constructed more integrally, a porous material member 7 having a large number of continuous pores penetrating the pressure side and the suction side of the blade is used in a part of the blade except for the outer peripheral edge.
The remaining parts, including the outer periphery, are made of the same non-porous synthetic resin as that used to form the hub part, etc., and both are integrally molded. Here, the porous material is synthetic resin powder. Even if a material (abbreviated as resin sintered material) is used in which continuous pores are formed by partially welding the powders together by heating them together, a schematic diagram of the microstructure is shown in Figure 4.
The mechanism that makes it possible to reduce noise by using a porous material in a part of the blade can be thought of as follows. Flowing from the blade leading edge 6a of the impeller 1 to the pressure surface side 7 of the blade 6
c, the flow flows out from the trailing edge 6b of the blade along the suction surface side 7d, and is blown in a predetermined direction.
Pressure fluctuations in the boundary layer of the flow Although pressure fluctuations occur during the transition from laminar flow to turbulent flow, depending on the operating conditions of the blades 6, pressure fluctuations may be excited as the flow separates from the blades 6. However, as described above, the blower impeller of the present invention has a part of the blade 6 except for the outer peripheral edge part formed of the porous member 7. Pressure fluctuations that occur on the blade surface when passing over the surface of the porous member 7 (even if the pressure fluctuations are alleviated by a mechanism such as the following) Since the side 7c and the negative pressure side 7d are in communication, air enters and exits, so when the pressure on the pressure side 7c becomes high, air flows out to the negative pressure side 7d and the fluctuation is suppressed. M. If the pressure on the suction surface side 7d becomes high, even if there is a mechanism in which air flows out to the pressure surface side 7c and fluctuations are suppressed (Q. Based on the pressure fluctuations occurring on the blade surface) By the way, the noise can be reduced because the pressure fluctuation is small. However, the porous member 7 made of a resin sintered material has a plurality of semi-circular arc-shaped slits 9, and this part (the upper part which forms the hub part etc.) It is filled with the same non-porous synthetic resin as the
ここで、このような羽根車の製作方法について、第５図
〜第７図に基づいて説明する。Here, a method for manufacturing such an impeller will be explained based on FIGS. 5 to 7.
まず、第５図に示すようＪ−、前記切り欠き９を有する
樹脂焼結材料による多孔質部材７を製作すム この場合
、樹脂焼結材の焼結時に同様な形の金型により成形して
もよいし 定尺の焼結材から打ち抜き等の方法により型
どりしてもよｕ〜 またこの時、多孔質部材の板厚（よ
最終完成時の板厚より少し厚く作っておく。First, as shown in FIG. 5, a porous member 7 made of a resin sintered material having the notches 9 is manufactured. It is also possible to form the porous member by punching or other methods from a sintered material of a fixed length.Also, at this time, the thickness of the porous member should be made slightly thicker than the thickness of the final completed plate.
得られた樹脂焼結材の多孔質部材７６友 第６図のよう
に 射出成形用の金型１０に装着されもこの時金型内に
は多孔質部材７の仮固定用にピン１１が出ており、この
ピン１１に前記の多孔質部材に設けた切り欠き９をはめ
込んで、仮固定を行なう。The porous member 76 made of the obtained sintered resin material is mounted in a mold 10 for injection molding as shown in FIG. The pin 11 is fitted into the notch 9 provided in the porous member for temporary fixation.
次に金型を閉じる力（多孔質部材７の板厚は予め少し厚
めに作っであるた数 完全に金型面に沿って固定されも
ここで、第７図（ａ）〜（Ｃ）に示すよう凶 前記ピ
ン１１を金型内から抜いて、非多孔質の合成樹脂１７を
射出して、成形すもこのような製作方法には以下のよう
な特長があａまず、最終的に外周縁部の非多孔質材で規
制されることによって、多孔質部材部分の翼面形状がつ
くられるた数 当初の多孔質部材そのもは平板でよく、
多孔質部材製作時に複雑な３次元形状である翼面形状の
金型等が不要となり、非常に安価＆へ簡単に製作可能で
ある特長があム
また 強度的にＬ 外周縁部の非多孔質材で維持され
羽根車全体の強度はあまり低下しな（〜また 強度上
最も弱点となる多孔質部材と非多孔質材部との接合部の
強度についてＬ 射出された非多孔質材樹脂が多孔質材
の気孔部分に侵入して、複雑な形状でからみあうた八
問題ない強度が得られも
ところで、上記の実施例でζよ 多孔質材料として、樹
脂焼結材料を使用した方丈 この他に金属の焼結材銖
金属繊維からなる不織布 金属や樹脂の発泡材料を使用
しても同じ効果が得られも次に 製作過程のべ 多孔質
部材を金型内に仮固定する方法について、他の実施例に
付いて説明すも
第２の実施例は 第８図に示すよう圏 多孔質部材７を
金型内に装着する際 金型内に設けた計上の突起１２に
突き刺して仮固定し その後、金型内に非多孔質材の合
成樹脂を射出して形成する。Next, the force for closing the mold (the thickness of the porous member 7 is made slightly thicker in advance), even if it is completely fixed along the mold surface. As shown in the figure, the pin 11 is removed from the mold, non-porous synthetic resin 17 is injected, and molded.This manufacturing method has the following features. The shape of the wing surface of the porous member is created by being restricted by the non-porous material at the periphery.The initial porous member itself may be a flat plate;
When manufacturing porous parts, there is no need for a mold for the shape of a wing surface, which is a complex three-dimensional shape, and the feature is that it can be manufactured at a very low cost and easily. maintained by wood
The strength of the impeller as a whole does not decrease much (~Also, the strength
Regarding the strength of the joint between the porous member and the non-porous material part, which is the weakest point L. The injected non-porous resin enters the pores of the porous material and becomes entangled in a complicated shape.
By the way, in the above example, a resin sintered material was used as the porous material.
The same effect can be obtained by using a non-woven fabric made of metal fibers, a metal or resin foam material. In the second embodiment, as shown in Fig. 8, when the porous member 7 is installed in the mold, it is temporarily fixed by being inserted into the projection 12 provided in the mold. Formed by injection of porous synthetic resin.
この製作方法によって叡 第１の実施例によって得られ
る前記の特長（よ なんら失われることはなし−
第３の実施例は 第９図に示すようく 多孔質部材７を
形成する暇 樹脂 金属等からなる串１３を一体に形成
しておき、多孔質部材７を金型内に装着する限 第１０
図に示すように 金型周縁部に設けた溝１４に 前記の
串部分１３をはめ込んで仮固定し その後、金型を閉じ
て、金型内に非多孔質材の合成樹脂を射出し その後、
余分の串端部１５を切断して形成する。この場合、串と
溝以外でＬ はめ合いを形づくる形状でも良いことはい
うまでもな（〜 この製作方法によってＬ第１の実施例
によって得られる前記の特長はなんら失われることはな
し℃
第４の実施例１１ 第１１図のように 多孔質部材７
を金型内に装着する服 金型内の片面から真空吸着して
該多孔質材７を仮固定し その後、金型を閉じて、金型
内に非多孔質材の合成樹脂を射出して形成すも また
真空吸着する際凶 多孔質材料であるため空気漏れが生
ずることがあるので、手取 多孔質部材７の真空吸着す
る面と反対側の面番ミ 通気性の無いシート１６を貼
り付けておき、射出成形後、該シート１６を除去して形
成すも この製作方法によって耘 第１の実施例によっ
て得られる前記の特長はなんら失われることはな（〜
また 本実施例においては羽根車として、軸流型に近い
斜流ファンの適用例を示した力（軸流型のプロペラファ
ン東 シロッコ、ターボファン等の遠心送風風 および
、クロスフローファンの羽根車に適用しても同様の効果
が得られも その１実施例として、シロッコファンに適
用した例を第１２図に示す。With this manufacturing method, the above-mentioned features obtained by the first embodiment are not lost.The third embodiment is as shown in FIG. 9. As long as the skewer 13 is formed integrally and the porous member 7 is installed in the mold, 10th
As shown in the figure, the skewer part 13 is fitted into the groove 14 provided on the periphery of the mold and temporarily fixed.Then, the mold is closed and a non-porous synthetic resin is injected into the mold.
The extra skewer end 15 is cut off and formed. In this case, it goes without saying that a shape other than the skewer and groove that forms the L fit may be used (~ By this manufacturing method, the above-mentioned features obtained by the L first embodiment are not lost in any way. Example 11 Porous member 7 as shown in Fig. 11
The porous material 7 is temporarily fixed by vacuum suction from one side of the mold.Then, the mold is closed and a non-porous synthetic resin is injected into the mold. formation sumo again
When vacuum suctioning is performed, air leakage may occur due to the porous material. After molding, the sheet 16 is removed and formed. With this manufacturing method, the above-mentioned features obtained by the first embodiment are not lost. The force shown is an application example of a mixed flow fan close to the type (axial flow type propeller fan, centrifugal blast air such as scirocco, turbo fan, etc.), and the same effect can be obtained when applied to the impeller of a cross flow fan. As one example, an example in which the present invention is applied to a sirocco fan is shown in FIG.
発明の効果
以上のように 本発明によれば 低騒音化をはかるため
に 多孔質材料によって翼を構成しなか収 製造が容易
で生産性が高く、強度上も問題のない送風機が提供でき
るものである。Effects of the Invention As described above, according to the present invention, in order to reduce noise, the blades are not made of porous material, and it is possible to provide a blower that is easy to manufacture, has high productivity, and has no problems in terms of strength. be.
第１図（ａ）、 （ｂｉは本発明の一実施例における
送風機羽根車の斜視図 および、翼断面艮第２図は同羽
根車を使用した送風機の断面匝 第３図は同送風機羽根
車の翼の多孔質部材の圧力変動緩衝原理模式医 第４図
は樹脂焼結材料の微細構造の模式医 第５図は本発明の
第１の製作方法による場合の多孔質部材形状を示す斜視
図 第６図は同第１の製作方法による場合の金型略形状
を示す斜視＠ 第７図（ａ）〜（ｃ）は同第１の製作方
法を示す断面医 第８図は同第２の製作方法による場合
の金型略形状を示す分解斜視＠ 第９図は同第３の製作
方法による場合の多孔質部材形状を示す斜視医 第１０
図は同第３の製作方法による場合の金型略形状を示す斜
視医 第１１図は同第４図の製作方法を示す断面医 第
１２図は本発明をシロッコファンに適用した例を示す斜
視諷第１３図は従来例による送風機の斜視医 第１４図
は従来例による送風機の翼断面図であムト・・・羽根東
２・・・・電動ａ ３・・・・エアガイグー、 ４・
・・・電動機支持台、 ５・・・・ハブ訊 ６・・・・
翼 ６ａ・・・・翼前縁ａ ６ｂ・・・・翼後縁Ｒ，
７・・・・多孔質部林 ７Ｃ・・・・翼圧力面偲 ７ｄ
・・・・翼負圧面（ＩＵＬ ８・・・・羽根車ボス餓
９・・・・切り欠き、 １０・・・・射出成形用の金
監 １１・・・・ピン、１２・・・・針状の突ね １３
・・・・亀 １４・・・・鳳１５・・・・串端服 １６
・・・・シート、 １７・・・・非多孔質の合成相方１
代理人の氏名 弁理士 粟野重孝 はか１名羽不及車
を壷力機
第
図
ゴ］本１車
ｔ２７すＰＲさ
第
図
Ｏコ
＼ ６−
濾
Ｑ
第
図
非多′：ＪＬ實の台へ樹脂Figure 1(a), (bi is a perspective view of the blower impeller in one embodiment of the present invention, and the blade cross-section. Figure 2 is the cross-sectional view of the blower using the same impeller. Figure 3 is the same blower impeller. Fig. 4 is a schematic representation of the pressure fluctuation buffering principle of the porous member of the wing of the invention. Fig. 5 is a perspective view showing the shape of the porous member when the first manufacturing method of the present invention is used. Figure 6 is a perspective view showing the general shape of the mold when the first manufacturing method is used. Figures 7 (a) to (c) are cross-sectional views showing the first manufacturing method. An exploded perspective view showing the approximate shape of the mold when using the third manufacturing method.
Figure 11 is a cross-sectional view showing the approximate shape of the mold when the third manufacturing method is used. Figure 12 is a perspective view showing an example of applying the present invention to a sirocco fan. Figure 13 is a perspective view of a conventional blower. Figure 14 is a cross-sectional view of the blades of a conventional blower.
...Motor support stand, 5..Hub support 6..
Wing 6a...Blade leading edge a 6b...Blade trailing edge R,
7...Porous area 7C...Blade pressure surface 7d
...Blade suction surface (IUL) 8 ... Impeller boss starvation 9 ... Notch, 10 ... Injection molding control 11 ... Pin, 12 ... Needle shape tsune 13
... Turtle 14 ... Otori 15 ... Kushibata 16
...Sheet, 17...Non-porous synthetic partner 1 Agent's name: Patent attorney Shigetaka Awano (1 person, 1 person) 1 car t27 PR diagram Oko＼ 6- Filter Q Diagram Non-Ta': Resin to JL actual stand
Claims (12)
一部の範囲に、翼の圧力面側と負圧面側を貫通する多数
の連続気孔を持つ多孔質材料を使用し、外周縁部分を含
む残りの部分に非多孔質の合成樹脂を使用し、両者を一
体に成形した送風機羽根車。(1) A porous material with a large number of continuous pores penetrating the pressure side and suction side of the blades is used in a part of the area other than the outer peripheral edge of the multiple blades that make up the impeller. A blower impeller that uses non-porous synthetic resin for the remaining parts, including the peripheral edge, and molds both parts into one piece.
て、粉末どうしを部分的に溶着させて、連続気孔を形成
した材料（以下、樹脂焼結材料と略する。）を使用した
請求項１記載の送風機羽根車。(2) A claim in which a material in which continuous pores are formed by accumulating and heating synthetic resin powders and partially welding the powders together (hereinafter abbreviated as resin sintered material) is used as the porous material. The blower impeller according to item 1.
求項１記載の送風機羽根車。(3) The blower impeller according to claim 1, wherein a sintered metal material is used as the porous material.
用した請求項１記載の送風機羽根車。(4) The blower impeller according to claim 1, wherein a nonwoven fabric made of metal fiber is used as the porous material.
した請求項１記載の送風機羽根車。(5) The blower impeller according to claim 1, wherein a metal or resin foam material is used as the porous material.
る際に、予め多孔質材料で形成した多孔質部材を金型内
に固定して、その後、金型内に非多孔質材の合成樹脂を
射出して形成する請求項２記載の送風機羽根車。(6) When a porous material and a non-porous synthetic resin are integrally formed, a porous member made of a porous material is fixed in advance in a mold, and then a non-porous material is placed in a mold. The blower impeller according to claim 2, wherein the blower impeller is formed by injection of synthetic resin.
する際に、多孔質部材の板厚を、完成後の羽根車翼厚よ
り厚く形成した請求項６記載の送風機羽根車。(7) The blower impeller according to claim 6, wherein when the porous member fixed in the mold is formed of a porous material, the thickness of the porous member is made thicker than the thickness of the impeller blade after completion.
部材を金型内に装着する際、金型内に設けたピンに前記
切り欠きをはめ込んで仮固定し、金型が閉じて前記多孔
質部材が金型両面にはさまれて完全に固定された後、金
型内からピンを抜いて、その後、金型内に非多孔質材の
合成樹脂を射出して形成する請求項６記載の送風機羽根
車。(8) A notch is provided in the porous member, and when the porous member is installed in the mold, the notch is fitted into the pin provided in the mold and temporarily fixed, and the mold is closed. After the porous member is sandwiched between both sides of the mold and completely fixed, the pin is removed from the mold, and then a non-porous synthetic resin is injected into the mold to form the porous member. The blower impeller described in 6.
た針上の突起に突き刺して仮固定し、その後、金型内に
非多孔質材の合成樹脂を射出して形成する請求項６記載
の送風機羽根車。(9) When installing the porous member into the mold, it is temporarily fixed by sticking it into the protrusion on the needle provided in the mold, and then it is formed by injecting a non-porous synthetic resin into the mold. The blower impeller according to claim 6.
る串等の凸部を一体に形成しておき、前記多孔質部材を
金型内に装着する際、金型周縁部に設けた溝等前記凸部
とはめ合いになる凹形部にこの凸部をはめ込んで仮固定
し、その後、金型を閉じて、金型内に非多孔質材の合成
樹脂を射出して形成する、請求項６記載の送風機羽根車
。(10) When forming the porous member, a convex part such as a skewer made of resin, metal, etc. is integrally formed, and when the porous member is installed in the mold, it is provided on the peripheral edge of the mold. The convex part is fitted into a concave part such as a groove that fits with the convex part and temporarily fixed, and then the mold is closed and a non-porous synthetic resin is injected into the mold to form it. The blower impeller according to claim 6.
面から真空吸着して前記多孔質部材を仮固定し、その後
、金型を閉じて、金型内に非多孔質材の合成樹脂を射出
して形成する請求項６記載の送風機羽根車。(11) When installing a porous member into a mold, the porous member is temporarily fixed by vacuum suction from one side of the mold, and then the mold is closed and a non-porous material is inserted into the mold. 7. The blower impeller according to claim 6, which is formed by injection of a synthetic resin.
付けておき、該多孔質部材を金型内に装着する際、金型
内のシートに接しない面から真空吸着して前記多孔質部
材を仮固定し、射出成形後、前記シートを除去して形成
する請求項１１記載の送風機羽根車。(12) A non-permeable sheet is pasted on one side of the porous member, and when the porous member is installed in a mold, the porous member is vacuum-adsorbed from the side of the mold that is not in contact with the sheet. The blower impeller according to claim 11, wherein the member is temporarily fixed and the sheet is removed after injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2113344A JP2754862B2 (en) | 1990-04-27 | 1990-04-27 | Blower impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2113344A JP2754862B2 (en) | 1990-04-27 | 1990-04-27 | Blower impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0412199A true JPH0412199A (en) | 1992-01-16 |
| JP2754862B2 JP2754862B2 (en) | 1998-05-20 |
Family
ID=14609869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2113344A Expired - Fee Related JP2754862B2 (en) | 1990-04-27 | 1990-04-27 | Blower impeller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2754862B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6235775B1 (en) | 1997-09-12 | 2001-05-22 | Ajinomoto Co., Inc. | Acetone adduct of fungicidal V-28-3M |
| CN101725562A (en) * | 2008-10-28 | 2010-06-09 | 富准精密工业(深圳)有限公司 | Heat radiating fan and impeller thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5107865B2 (en) * | 2008-10-24 | 2012-12-26 | 三菱重工メカトロシステムズ株式会社 | Fluctuating wind generator and wind tunnel device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6332196A (en) * | 1986-07-25 | 1988-02-10 | N D C Kk | Low noise fan |
| JPS6429208A (en) * | 1987-07-27 | 1989-01-31 | Matsushita Electric Works Ltd | Hair dryer |
| JPH01237399A (en) * | 1988-03-17 | 1989-09-21 | Matsushita Electric Ind Co Ltd | Runner of air blower |
| JPH0220322A (en) * | 1988-07-08 | 1990-01-23 | Toyota Auto Body Co Ltd | Production of duct |
-
1990
- 1990-04-27 JP JP2113344A patent/JP2754862B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6332196A (en) * | 1986-07-25 | 1988-02-10 | N D C Kk | Low noise fan |
| JPS6429208A (en) * | 1987-07-27 | 1989-01-31 | Matsushita Electric Works Ltd | Hair dryer |
| JPH01237399A (en) * | 1988-03-17 | 1989-09-21 | Matsushita Electric Ind Co Ltd | Runner of air blower |
| JPH0220322A (en) * | 1988-07-08 | 1990-01-23 | Toyota Auto Body Co Ltd | Production of duct |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6235775B1 (en) | 1997-09-12 | 2001-05-22 | Ajinomoto Co., Inc. | Acetone adduct of fungicidal V-28-3M |
| CN101725562A (en) * | 2008-10-28 | 2010-06-09 | 富准精密工业(深圳)有限公司 | Heat radiating fan and impeller thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2754862B2 (en) | 1998-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR960009751B1 (en) | Blower and method of impeller | |
| JP3092554B2 (en) | Centrifugal blower, method for manufacturing the same, and air conditioner equipped with the centrifugal blower | |
| US8225623B2 (en) | Centrifugal fan, air conditioner | |
| JP3907983B2 (en) | Turbo fan for air conditioner | |
| KR100929984B1 (en) | Wing tea of multi-blown blower and manufacturing method thereof | |
| US20220282733A1 (en) | Regenerative blower | |
| JPWO2011102120A1 (en) | Impeller, electric blower using the impeller, and electric vacuum cleaner using the electric blower | |
| JPH01277603A (en) | Vane wheel having aerofoil type blade and manufacture thereof | |
| JP6747421B2 (en) | Centrifugal blower | |
| JPH0412199A (en) | Blower impeller | |
| WO2020103400A1 (en) | Axial-flow wind wheel and air-conditioner with same | |
| TWI661131B (en) | Telecentric fan, forming mold and fluid conveying device | |
| JP2667748B2 (en) | Multi-wing impeller | |
| JP3122701B2 (en) | Turbo fan and its manufacturing method | |
| JPH04295200A (en) | Blower impeller | |
| JP4872997B2 (en) | Blower and air conditioner equipped with the blower | |
| JPS6234959B2 (en) | ||
| JP4305176B2 (en) | Impeller and its manufacturing method | |
| JPS6332196A (en) | Low noise fan | |
| JP3575986B2 (en) | Multi-wing blower | |
| JP3365376B2 (en) | Method of manufacturing impeller for blower | |
| JP2001123993A (en) | Impeller for blower and method of manufacturing it | |
| WO2018151013A1 (en) | Centrifugal blower | |
| JPH04116699U (en) | centrifugal fan | |
| KR20070031160A (en) | Turbofan and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |