JPS5835297A - Plastic impeller of oblique flow fan - Google Patents
Plastic impeller of oblique flow fanInfo
- Publication number
- JPS5835297A JPS5835297A JP13339181A JP13339181A JPS5835297A JP S5835297 A JPS5835297 A JP S5835297A JP 13339181 A JP13339181 A JP 13339181A JP 13339181 A JP13339181 A JP 13339181A JP S5835297 A JPS5835297 A JP S5835297A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- conical boss
- boss
- blades
- plastic
- 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
- F04D29/34—Blade mountings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、軸流ファンと遠心ファンの中間的な存在であ
る斜流ファンのプラスチック製翼車に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plastic impeller for a mixed flow fan, which is an intermediate between an axial fan and a centrifugal fan.
従来の斜流ファンの翼車は、５１１図（Ａ） （Ｂ）
Ｉ／Ｃ示すように円錐形ボス（１）の斜面（２）上に０
１３１の羽根・（３）な略放射方向にかつ斜めに配設し
、円錐状ボス（１）が各羽根（３）と一体圧なって回転
し送風するようになっている。The impeller of a conventional mixed flow fan is shown in Figure 511 (A) (B)
I/C 0 on the slope (2) of the conical boss (1) as shown.
131 blades (3) are arranged substantially in the radial direction and diagonally, and the conical boss (1) rotates integrally with each blade (3) to blow air.
ところで、前記の斜流フｒンの翼車においては。By the way, in the impeller of the mixed flow wheel mentioned above.
円錐形ボス（ｉ）上の各羽根（３が円錐形ボス（１］の
斜面（２）ｋ対し斜設され、第１図（Ａ）に示すようＫ
ＩＪ面視にて斜設された各羽根（３）により羽根の＊面
（＆５ＩＩＩ ＞ ト円錐ｓホｘ （１） （７）ｆｉ
ｍ−ｉＫｆニックで示す隘部分（４）ができるため、プ
ラスチックによって円錐形ボス（１）と各羽根（３）を
射出数Ｍ尋の手段により一体成形することができない。Each vane (3) on the conical boss (i) is installed obliquely to the slope (2) k of the conical boss (1), and as shown in FIG.
Each blade (3) obliquely installed when viewed from the IJ side allows the * side of the blade ( &5
Since a narrow portion (4) indicated by m-iKf nick is formed, the conical boss (1) and each blade (3) cannot be integrally molded from plastic by means of injection number M fathoms.
よって、斜流ファンの翼車なプラスチック製にするには
、個別に円錐形ボス（１）と各羽根（３）を成形して接
着等の手段により結合しているのが現状である。Therefore, in order to make the blade wheel of a mixed flow fan made of plastic, the current practice is to individually mold the conical boss (1) and each blade (3) and connect them by adhesive or other means.
しかし、前記のような斜流ファンのプラスチック製翼車
においては、翼車に必要なボスおよび羽根の表面におけ
る円滑性は得られるが、ボス上に羽根をＭ＠−するため
に、その結合部に強度不足を生じ核部が破損し勝ちとな
り、羽根基部やボスな必要以上に肉厚に形成することが
必要となるなどの難点があり、また、個別成型１強力な
結合等の面倒な製造工程を要し、篩１曲な製品となる難
点がある。However, in the plastic impeller of the mixed flow fan as described above, although the smoothness of the surfaces of the boss and blades required for the impeller can be obtained, in order to place the blades on the boss, the joining part There are disadvantages such as insufficient strength and damage to the core, and the need to form the blade base and boss to be thicker than necessary.Also, it is difficult to manufacture the parts by individual molding and strong bonding. It requires a process and has the disadvantage of producing a one-piece product.
また、第１図に示す翼車の一体成形手段としては、従来
の鋳物成型法忙よることも一応η■能であるが、大蓋生
産できず高価な製品となり、また、第１図に示す内直形
ボス（１）の陰部分（４）を欠除した製品にすると一体
ｂｚ形が可能となるが、この場合には円錐形ボス（１）
の斜面周縁部が鋸歯状になって強度不足を生じ、また風
圧を受ける羽＠（３）を十分に固定することができず振
−し肪ちとなる難点がある。In addition, as a means of integrally molding the impeller shown in Fig. 1, it is possible to use the conventional casting method, but it would not be possible to produce a large lid and the product would be expensive. If the product is made by omitting the shadow part (4) of the inner straight boss (1), an integral bz shape is possible, but in this case, the conical boss (1)
The periphery of the slope becomes serrated, resulting in insufficient strength, and the blade (3), which is exposed to wind pressure, cannot be sufficiently fixed, resulting in sagging and flattening.
本発明は、従来の斜流ファンのプラスチック製減車にお
ける前記したような難点を解消するにあり、円錐形ボス
の斜面に複数の羽根を斜設した斜流ファンのプラスチッ
ク製翼車において、前ｍｌの円軸形ボスにおける前面視
にて羽根の陰部分に切欠部を設けるとともに、該円錐形
ボス内に羽伝の後縁基部に指向した放射状のリプな各羽
根毎に配設して１円錐形ボスと羽根とをプラスチックに
て一体に゛形成した点に特徴な有するものであって。The present invention aims to solve the above-mentioned difficulties in the conventional plastic reduced wheel of a mixed flow fan. A notch is provided in the shadow part of the blade when viewed from the front in the cylindrical boss, and a conical shaped boss is provided for each blade with a radial lip pointing toward the base of the trailing edge of the conical boss. The feature is that the shaped boss and the blade are integrally formed of plastic.
その目的とする処は、円錐形ボス上に羽根を一体に形成
して連結部分における強度不足を解消するとともに円錐
形ボスを補強した斜流ファンのプラスチック製翼車を供
する点忙ある。The purpose is to provide a plastic blade wheel for a mixed flow fan in which the blades are integrally formed on the conical boss to eliminate the lack of strength in the connecting part, and the conical boss is reinforced.
本発明は、前記【また構成になっており、円錐形ボスに
おける前面視にて羽根の隘部分に切欠部を設けるととも
に、かつ円錐形ボス内の羽根の後縁基部に指向した放射
状のリプを配設して、円錐形ボスと羽根とを一体に形成
しているので、円錐形ボスと各羽根の基部が一体結合と
なり核部における強度不足がなく、かつ各羽根を支持し
ている円錐形ボスの斜面部分が放射状リプにより補強さ
れているため、各羽根が円錐形ホス上に強力に固定支持
される。The present invention also has the above-mentioned configuration, in which a notch is provided in the narrow part of the blade when viewed from the front in the conical boss, and a radial lip is provided in the conical boss toward the base of the trailing edge of the blade. Since the conical boss and the blade are integrally formed, the conical boss and the base of each blade are integrally connected, and there is no lack of strength at the core, and the conical shape supports each blade. Since the slope portion of the boss is reinforced with radial lips, each blade is strongly fixed and supported on the conical boss.
また、本発明においては、顧■記の切欠部の形成ＶＣよ
り円錐形ボスと谷羽根とを一体に形成することができ、
放射状リグも同時に形成できるため。Further, in the present invention, the conical boss and the valley blade can be integrally formed by the formation VC of the notch as described in Section 1.
Because radial rigs can also be formed at the same time.
大瀘生咳がＯｆ＠目であり、かつ１羽根の連設部と放射
状リグとにより円錐形ボスの斜面部分が補強構造になり
、核部を特に肉厚に形成する必要がなく、円錐形ボス、
羽根の表面が円滑性を有しかつ丈夫な構造よりなるプラ
スチック製翼車が得られ、安値な製品として提供するこ
とができる。Of @ eyes, the slope part of the conical boss has a reinforced structure due to the continuous part of one blade and the radial rig, so there is no need to form the core part particularly thick, and the conical shape boss,
A plastic blade wheel having a smooth blade surface and a durable structure can be obtained, and can be provided as a low-priced product.
以下本発明の実施例を図示について説明する。Embodiments of the present invention will be described below with reference to the drawings.
第２図（Ａ） （Ｂ） （Ｃ）、第６図に本発明の一実
施例を示し、し中（１１）は円錐形表面を有する円錐形
ボス、 （１２）は円錐形ボス（１１）の斜面、（１
３）は円錐形ボス（１１）の斜面（１２）上に略方射方
向にかつ斜めに配設された複数の羽根であって、第１図
（Ａ）に示す円錐形ボス（１１）におけるＷＩ面祝にて
険相当部（第１図（４）−の部分）に切欠部（１４）を
設けるとともに、該円錐形ボス（１１）内（後［Ｍ＠）
には、各羽根（１３）の後縁（１３’）基部に指向した
放射状のリプ（１５）を、各羽根（１３）毎に配設し、
円錐形ボス（１１）と各羽根（１３）とをプラスチック
にて一体にＪＦ＆成した構造になっている。An embodiment of the present invention is shown in FIGS. 2(A), 2(B), and 6, in which the inside (11) is a conical boss having a conical surface, and (12) is a conical boss (11). ), the slope of (1
3) is a plurality of blades disposed obliquely in a substantially radial direction on the slope (12) of the conical boss (11), A notch (14) is provided in the rugged part (part (4) - in Figure 1) at the WI surface, and a cutout (14) is provided in the conical boss (11) (rear [M@)
A radial lip (15) directed toward the base of the trailing edge (13') of each blade (13) is arranged for each blade (13),
It has a structure in which the conical boss (11) and each blade (13) are integrally made of plastic.
従って、前ｄピした斜光ファンのプラスチック製翼車の
実施例においては、前面視にて各羽根（１３）の陰にな
る円錐形ボス（１１）の部分に第６図に示すように切欠
部（１４）を設けているので、円錐形ボス（ｌ ｊ）と
各２羽根（１３） ４なプラスチック射出成型、ｆ＝段
により、一体成形することが可能となり、円錐１魯、鱈
ス （１１）、＋羽七晩（１３）ｊ）唱−１倉西）代１
１鴫）い１６鴫制御 も゛有し、かつ各羽根（１３）が
円錐形ボス（１１）上に一体に連設されているため、そ
の連設部分に強度不足な生じたり、あるいは′破損する
ことがない。また、円錐形ボス（１１）の斜面（１２）
に切欠部（１４）を設けるため、該斜面（１２）の強度
が低下することになるが、この実施例では一円鰺形ボス
（１１）の内側即ち後面１１［羽根（１３）の後縁（１
３’）に指向した放射状のリグ（１５）を、各別＆ （
１３）毎に配設しているため、この放射状のＩＪ ７’
（１５）が各羽根（１３）基部の連設部とともに、切
欠部（１４）にて分離された各斜面（１２３ｇ分を有効
に補強しており、切欠部（１４）の形成による円錐形ボ
ス（１１）の斜面（１２）の頻度低Ｆを十分に補うこと
ができる。よって。Therefore, in the embodiment of the plastic blade wheel of the diagonal light fan with the front dipped, there is a cutout as shown in FIG. (14), it is possible to integrally mold a conical boss (l j) and two blades (13) each by 4 plastic injection moldings, f = stage, and one cone and two blades (13) can be integrally molded. ), + Hananaban (13) j) chant - 1 Kuranishi) dai 1
Since each blade (13) is integrally connected to the conical boss (11), the connected part may lack strength or be damaged. There's nothing to do. Also, the slope (12) of the conical boss (11)
Since the notch (14) is provided in the slope (12), the strength of the slope (12) is reduced. (1
3') radial rigs (15), each separately & (
13), this radial IJ 7'
(15) effectively reinforces each slope (123 g) separated by the notch (14) together with the continuous part of the base of each blade (13), and the conical boss formed by the notch (14) The low frequency F of slope (12) in (11) can be sufficiently compensated for.
切欠部（１４）を設けた状惑のままで斜流ファンの翼車
として使用することが可能であるが、その性能を更に向
上させるために、前記切欠部（１４） Ｋ相当する部品
を別に成形して、切欠部（ｔ４）Ｋｍ着することも可能
である。It is possible to use it as a blade wheel of a mixed flow fan with the notch (14) provided, but in order to further improve its performance, parts corresponding to the notch (14) K may be separately installed. It is also possible to mold and attach the notch (t4) Km.
また、前記した実施例のプラスチック製翼車においては
、射出成型等により大量生産することが可能であり、強
度も十分に補なわれているため、円錐形ボスおよび羽根
を格別に肉厚に形成する必要がなく、円滑表面を有する
丈夫な製品を安価に提供することができる。In addition, the plastic impeller of the above embodiment can be mass-produced by injection molding, etc., and has sufficient strength, so the conical boss and blades can be formed with exceptional thickness. This makes it possible to provide a durable product with a smooth surface at a low cost.
−以上本発明を実施例について説明したが、勿論本発明
はこのような実施例にだけ局限されるものではなく、本
発明の精神を逸脱しｈい範囲内で樵々の設計の改変を施
しうるものである。- Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that the lumberjack's design may be modified without departing from the spirit of the present invention. It's watery.
第１図（Ａ） （Ｂ）は従来の斜流ファンの翼車な示す
前面図と側面図、第２図（Ａ） （Ｂ） （Ｇ）は本発
明の実施例を示す前面図、側面層および後面図、第３図
は第２図（Ａ）の羽根を除いた円錐形ボス部分の一部拡
大前面図である。
１１：円錐形ボス、 １２：円錐形ボスの斜面。
１６：羽根 １３／１１羽根の後縁、 １４：切欠
部。
１５：放射状のリブ。Figure 1 (A) (B) is a front view and side view showing the impeller of a conventional mixed flow fan, and Figure 2 (A) (B) (G) is a front view and side view showing an embodiment of the present invention. Layers and rear view, FIG. 3 is a partially enlarged front view of the conical boss portion of FIG. 2(A) with the blades removed. 11: Conical boss, 12: Slope of conical boss. 16: Blade 13/11 Trailing edge of blade, 14: Notch. 15: Radial ribs.
Claims (1)
プラスチック製翼車において、＋１１の円錐形ボスにお
ける前面視にて羽根の陰部分に切欠部を設けるとともに
、該円錐形ボス内に羽根の後縁基部に指向した放射状の
リズを各羽機毎に配設して、内錐形ボスと羽根とをプラ
スチックにて一体に形成した構成Ｋｔｆｉ倣を有する斜
流ファンのプラスチック製翼車。In a plastic impeller for a mixed flow fan in which a plurality of blades are installed obliquely on the slope of a conical boss, a notch is provided in the shadow part of the blade when viewed from the front of the +11 conical boss, and a notch is provided in the shadow part of the blade in the conical boss. A plastic blade wheel of a mixed flow fan having a configuration similar to Ktfi, in which a radial groove directed toward the base of the trailing edge of the blade is arranged for each blade, and the inner conical boss and the blade are integrally formed of plastic. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13339181A JPS5835297A (en) | 1981-08-27 | 1981-08-27 | Plastic impeller of oblique flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13339181A JPS5835297A (en) | 1981-08-27 | 1981-08-27 | Plastic impeller of oblique flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5835297A true JPS5835297A (en) | 1983-03-01 |
Family
ID=15103642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13339181A Pending JPS5835297A (en) | 1981-08-27 | 1981-08-27 | Plastic impeller of oblique flow fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5835297A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8051578B2 (en) * | 2006-06-29 | 2011-11-08 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Reduced noise dryer fan and impeller and producing method thereof |
| CN103062113A (en) * | 2013-01-23 | 2013-04-24 | 薛文义 | Fan mechanism of turbo-fan engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5587895A (en) * | 1978-12-23 | 1980-07-03 | Sueddeutsche Kuehler Behr | Axial flow or semmaxial flow impeller or front guid wheel having increased bosssdiameter in flow direction using especially for cooling internal combustion engine in vehicle |
| JPS55153894A (en) * | 1979-05-18 | 1980-12-01 | Toshiba Corp | Impeller for mixed flow blower |
-
1981
- 1981-08-27 JP JP13339181A patent/JPS5835297A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5587895A (en) * | 1978-12-23 | 1980-07-03 | Sueddeutsche Kuehler Behr | Axial flow or semmaxial flow impeller or front guid wheel having increased bosssdiameter in flow direction using especially for cooling internal combustion engine in vehicle |
| JPS55153894A (en) * | 1979-05-18 | 1980-12-01 | Toshiba Corp | Impeller for mixed flow blower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8051578B2 (en) * | 2006-06-29 | 2011-11-08 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Reduced noise dryer fan and impeller and producing method thereof |
| CN103062113A (en) * | 2013-01-23 | 2013-04-24 | 薛文义 | Fan mechanism of turbo-fan engine |
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