JPS62177266U - - Google Patents

Description

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

第１図は本考案の整流子の一実施例を示す上半
部縦断面図、第２図は第１図の整流子の外周面の
要部展開図、第３図は第１図の整流子片の位置に
対する温度分布曲線図、第４図は従来の整流子の
上半部縦断面図、第５図は第４図の整流子片の位
置に対する温度分布曲線図である。 １……整流子片、１ａ……長整流子片、１ｂ…
…短整流子片、１ｃ……絶縁物、２……リード、
３……整流子胴、３ａ……胴絶縁物、４……脚、
５……回転軸、６……遮蔽板、７……径方向通風
孔、９……軸方向通風路。 Fig. 1 is a longitudinal cross-sectional view of the upper half of an embodiment of the commutator of the present invention, Fig. 2 is a developed view of the main part of the outer circumferential surface of the commutator shown in Fig. 1, and Fig. 3 is a commutator shown in Fig. 1. FIG. 4 is a longitudinal cross-sectional view of the upper half of a conventional commutator, and FIG. 5 is a temperature distribution curve diagram relative to the position of the commutator piece in FIG. 4. 1...Commutator piece, 1a...Long commutator piece, 1b...
...Short commutator piece, 1c...Insulator, 2...Lead,
3... Commutator body, 3a... Body insulator, 4... Legs,
5... Rotating shaft, 6... Shielding plate, 7... Radial ventilation hole, 9... Axial ventilation passage.

Claims (1)

【実用新案登録請求の範囲】 (1) 回転軸に整流子胴を嵌着し、整流子胴の外
周に整流子片を取付けた整流子において、整流子
胴の整流子片リード反対側に設けた径方向の通風
孔と、整流子胴の内周側にリード側から径方向通
風孔に連通させた軸方向通風路と、１枚又は複数
枚置きに径方向通風孔上に延出した長整流子片と
を備えたことを特徴とする整流子。 (2) 整流子胴は脚を介して回転軸に嵌着し、軸
方向通風路は脚に孔を開けて形成したことを特徴
とする実用新案登録請求の範囲第１項記載の整流
子。 (3) 軸方向通風路のリード反対側端は遮蔽板に
て封止したことを特徴とする実用新案登録請求の
範囲第１項又は第２項記載の整流子。[Scope of Claim for Utility Model Registration] (1) In a commutator in which a commutator body is fitted to the rotating shaft and a commutator piece is attached to the outer periphery of the commutator body, a commutator piece provided on the opposite side of the commutator piece lead of the commutator body an axial ventilation passage that communicates with the radial ventilation hole from the lead side on the inner peripheral side of the commutator body, and a length extending above the radial ventilation hole on every other or multiple sheets. A commutator comprising a commutator piece. (2) The commutator according to claim 1, wherein the commutator body is fitted onto a rotating shaft through legs, and the axial ventilation passage is formed by opening holes in the legs. (3) The commutator according to claim 1 or 2, wherein the end of the axial ventilation passage opposite the lead is sealed with a shielding plate.