JPH0366538U

JPH0366538U -

Info

Publication number: JPH0366538U
Application number: JP12659189U
Authority: JP
Priority date: 1989-10-31
Filing date: 1989-10-31
Publication date: 1991-06-27

Description

[Brief explanation of the drawing]

第１図、第２図、第３図はこの考案の一実施例
を示すそれぞれ軸方向の断面図、界磁巻線を除い
た側面図、第２図のＡ−Ａ断面図、第４図は従来
の突極形積層磁極を有する同期機の軸方向断面図
である。１……界磁鉄心、１ｂ……突極形積層磁極、２
……固定子鉄心、４……界磁巻線、６……軸、７
……端板、７ａ……第１の脚、７ｂ……第２の脚
、７１……溝、７２……円周方向の溝、７３……
軸方向の溝、７４……貫通孔、８……通風ガイド
板、９……隙間。 1, 2, and 3 are axial sectional views showing an embodiment of this invention, a side view excluding the field winding, a sectional view taken along line A-A in FIG. 2, and FIG. 4. 1 is an axial cross-sectional view of a synchronous machine having conventional salient pole-shaped laminated magnetic poles. 1... Field iron core, 1b... Salient pole type laminated magnetic pole, 2
...Stator core, 4...Field winding, 6...Shaft, 7
...End plate, 7a...First leg, 7b...Second leg, 71...Groove, 72...Circumferential groove, 73...
Axial groove, 74... through hole, 8... ventilation guide plate, 9... gap.

Claims

[Claims for Utility Model Registration] 1. In a synchronous machine having a plurality of salient laminated magnetic poles in the field core, the salient laminated magnetic poles have a shorter axial flow than the fixed core, and both end faces of the salient laminated magnetic poles are connected to the stator. A salient laminated magnetic pole arranged inward from both end faces of the iron core, and a steel end plate fixed to each end face of the salient laminated magnetic pole to hold the field winding. It is characterized by comprising an end plate having a plurality of grooves cut in the circumferential direction on a surface facing the stator core, and a cooling structure configured to supply cooling air to the end plate. A synchronous machine with salient laminated magnetic poles. 2 The cooling structure for the end plate is an end plate having an L-shaped cross section, the first leg is located in the radial direction, and the second leg is parallel to the axis and protrudes outward with respect to the salient pole-shaped laminated magnetic pole. One side of the first leg is fixed to each of the end faces of the salient pole-shaped laminated magnetic pole, and the other three sides of the first leg of the end plate are fixed between the first leg and the first leg. Cover with a ventilation guide plate so that there is a gap between
A groove is cut in the shaft side surface of the second leg in the circumferential direction and in the axial direction so as to be continuous with the gap, and a through hole is formed in the end plate in the radial direction so as to communicate with the groove in the axial direction and the gap. 2. A synchronous machine having salient laminated magnetic poles according to claim 1, further comprising: a cooling air supply provided at the axial side of the gap and an outer end of the axial groove.