JPS6317551U

JPS6317551U -

Info

Publication number: JPS6317551U
Application number: JP11153586U
Authority: JP
Priority date: 1986-07-21
Filing date: 1986-07-21
Publication date: 1988-02-05

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す半断面側面
図、第２図は第１図における―線による断面
図、第３図は従来の開放形電動機を示す半断面側
面図である。図において、２は反負荷側ブラケツト、２ａは
風窓、３は負荷側ブラケツト、３ａは風窓、４は
回転軸、４ａは溝部、５は軸受、８は回転子鉄心
、１１は冷却フアンである。なお、各図中同一符
号は同一または相当部分を示す。 FIG. 1 is a half-sectional side view showing an embodiment of this invention, FIG. 2 is a sectional view taken along the line --- in FIG. 1, and FIG. 3 is a half-sectional side view showing a conventional open type electric motor. In the figure, 2 is a counter-load side bracket, 2a is a wind window, 3 is a load side bracket, 3a is a wind window, 4 is a rotating shaft, 4a is a groove, 5 is a bearing, 8 is a rotor core, and 11 is a cooling fan. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A first bracket having a window portion for sucking cooling air from outside into the inside, and a second bracket having a window portion for discharging the cooling air sucked from the window portion of the first bracket to the outside. a bracket; a rotating shaft rotatably supported by bearings fitted in the housing portions of the first and second brackets;
A rotor fitted and fixed to the outer diameter of the rotating shaft, and a cooling fan located between the rotor and the second bracket and fixed to the outer diameter of the rotating shaft, The rotor has a groove in the axial direction of the outer diameter portion of the rotating shaft that communicates with the fitting portion of the rotor, and the cooling air from the window of the first bracket flows through the groove and connects to the window of the second bracket. A rotating electrical machine characterized by being discharged from.