JPH0386763U

JPH0386763U -

Info

Publication number: JPH0386763U
Application number: JP14713089U
Authority: JP
Priority date: 1989-12-22
Filing date: 1989-12-22
Publication date: 1991-09-03

Description

[Brief explanation of drawings]

第１図は本考案による空冷装置を備え、フアン
カバーを外した高速回転電動機の斜視図、第２図
は第１図の出力軸側より見た立面図、第３図は第
２図の−断面図、第４図は従来の高速回転電
動機のフアンカバーを外した断面図である。符号の説明、１……電動機、２……フアン室、
２′……フアンカバー、３……フアン、４……フ
ランジ、５……入口溝孔、６……ケーシング、７
……出口溝孔、８……入口溝孔、９……出口溝孔
、１０……固定子コア、１１……作動子、１２…
…フランジ、１３……軸受、１４……遮断板、１
５……軸、１６……中心穴、１７……ダクト、１
８……入口溝孔。 Fig. 1 is a perspective view of a high-speed rotating electric motor equipped with an air cooling device according to the present invention with the fan cover removed, Fig. 2 is an elevational view of Fig. 1 as seen from the output shaft side, and Fig. 3 is the same as Fig. 2. - Cross-sectional view, FIG. 4 is a cross-sectional view of a conventional high-speed rotating electric motor with the fan cover removed. Explanation of symbols, 1...Electric motor, 2...Fan room,
2'...Fan cover, 3...Fan, 4...Flange, 5...Inlet slot, 6...Casing, 7
... Outlet slot, 8... Inlet slot, 9... Outlet slot, 10... Stator core, 11... Operator, 12...
...flange, 13...bearing, 14...blocking plate, 1
5...Shaft, 16...Center hole, 17...Duct, 1
8...Inlet slot.

Claims

[Claims for Utility Model Registration] 1. Each part of the electric motor and its rotating shaft are housed in a casing, the rotating shaft is supported by an output shaft and a bearing on the opposite side thereof, and a cooling fan is supported on the opposite side of the output side. In an air cooling device for a high-speed rotating electric motor, the air cooling device is housed in a cover provided further axially outward than the casing, and has an air inflow hole from inside the cover to the casing, and an air outflow hole from the casing to the outside. , the air cooling device further extends over substantially the entire length in the axial direction, covering the outer wall of the lower half of at least one of the side walls parallel to the axis of the casing;
a duct that defines an air flow passage between the duct and the outer wall of the casing; and a duct that has a through-hole for the rotating shaft near the output side bearing in the casing and is erected substantially perpendicularly to the rotating shaft; an air blocking plate that isolates the output side bearing from the main body of the electric motor and defines a space between the output side end plate of the casing and the flow of air for cooling the output side bearing; and from the cover. An air cooling device for a high-speed rotating electric motor, comprising: an air inflow hole into the duct; and an air inflow hole from the duct into a space through which the output shaft cooling air flows. 2. The air cooling device according to claim 1, wherein the duct extends to cover the outer periphery of both side surfaces parallel to the axis of substantially the lower half of the casing. Device. 3. The air cooling device according to claim 1, wherein the duct extends to cover the outer periphery of one side of a side surface parallel to the axis of substantially the lower half of the casing. Air cooling device.