JPS613992U

JPS613992U - Blower

Info

Publication number: JPS613992U
Application number: JP6626885U
Authority: JP
Inventors: 珪三西村
Original assignee: 西村電機株式会社
Priority date: 1985-05-02
Filing date: 1985-05-02
Publication date: 1986-01-11

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】第１図は側溝原理を説明する図、第２図は従来の送風機
の羽根車の構造とその欠点を説明する図、第３図は本考
案に係る送風機の羽根車の正面図、第４図Ａ，Ｂおよ
ひＣは、第３図のＢ， −Ｂ線、Ｂ２−Ｂ２線及ｉＢ．
ｉ−Ｂａ線上における各断面図、第５図は本考案に係る
送風機の部分断面図、第６図は風量一送風圧特性、消費
電流特性に関する実測データをグラフ化して示す図であ
る。２・・・羽根車、２ａ・・・周面、３・・・ブレード、
５・・・ガイド突起、６・・・背面、７・・・隅部、１
０・・・傾斜面、１１・・・側壁、１２・・・切欠。[Brief explanation of the drawings] Figure 1 is a diagram explaining the gutter principle, Figure 2 is a diagram explaining the structure of a conventional blower impeller and its drawbacks, and Figure 3 is a diagram explaining the impeller of a blower according to the present invention. The front views of FIGS. 4A, B and C are taken from lines B, -B, B2-B2 and iB. of FIG.
5 is a partial cross-sectional view of the blower according to the present invention, and FIG. 6 is a graph showing measured data regarding air volume vs. air pressure characteristics and current consumption characteristics. 2... Impeller, 2a... Circumferential surface, 3... Blade,
5... Guide protrusion, 6... Back, 7... Corner, 1
0... Inclined surface, 11... Side wall, 12... Notch.

Claims

[Scope of utility model registration request]

(1) Blades are erected at predetermined intervals on the circumferential surface of the rotatably driven impeller, and the whole is covered with a casing, and the blades are placed at the corner where the back surface of each blade intersects with the circumferential surface. A blower characterized by having a curved inclined surface whose radius becomes smaller and whose wall thickness becomes thicker toward a guide protrusion provided between the blades at an appropriate distance from the side end of the blade.

(2) The blower according to claim 2, wherein each of the blades has a notch at a corner where the back surface and the side wall intersect.