JPS59155854U - Rotor core of rotating electric machine - Google Patents

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図、第２図は従来の回転電機の回転子鉄心を示す図
で、第１図は断面側面図、第２図は第１図の■−■線に
おける断面図、第３図、第４図はこの考案の一実施例に
よる回転電機の回転子鉄心を示す図で、第３図は断面側
面図、第４図は第３図のＩＶ−ＩＶ線における断面図で
ある。 図において、１，７は回転子鉄心、２は回転軸、３．８
は通風穴である。なお、図中同一符号は同一、又は相当
部分を示す。Figures 1 and 2 are diagrams showing the rotor core of a conventional rotating electric machine. Figure 1 is a cross-sectional side view, Figure 2 is a cross-sectional view taken along the line ■-■ in Figure 1, Figures 3 and 2 are FIG. 4 is a diagram showing a rotor core of a rotating electrical machine according to an embodiment of this invention, FIG. 3 is a cross-sectional side view, and FIG. 4 is a cross-sectional view taken along the line IV--IV in FIG. 3. In the figure, 1 and 7 are the rotor core, 2 is the rotating shaft, and 3.8
is a ventilation hole. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸方向通風穴を有し回転軸に装着された回転電機の回転
子鉄心において、上記回転子鉄心の内周部近傍をスパイ
グー状にすると共に、上記内周部の所定部分が上記回転
軸に装着されるようにして、上記軸方向通風穴の通風面
積を拡大したことを特徴とする回転電機の回転子鉄心。In a rotor core of a rotating electric machine having an axial ventilation hole and mounted on a rotating shaft, the vicinity of an inner peripheral portion of the rotor core is shaped like a spike, and a predetermined portion of the inner peripheral portion is mounted on the rotating shaft. A rotor core for a rotating electrical machine, characterized in that the ventilation area of the axial ventilation hole is expanded in this way.