Rotating machine

Patent metadata

Field	Value
Publication number	US-10516309-B2
Application number	US-201615580950-A
Country	US
Kind code	B2
Filing date	Jun 20, 2016
Priority date	Jun 19, 2015
Publication date	Dec 24, 2019
Grant date	Dec 24, 2019

Abstract

Provided is a rotating machine capable of obtaining a uniform temperature distribution by improving a cooling air flow to a heat generation portion. The rotating machine has a salient pole rotor (11) and a stator (12). The salient pole rotor (11) has a rotation shaft (15), a disk-shaped spoke (22), a cylindrical rib (23), and a plurality of salient poles (25) arranged in a radial shape on an outer circumferential surface of the rib (23), each of the salient poles (25) being formed along an axial direction of the rotation shaft (15). The disk-shaped spoke (22) is provided to an anti-feeding side end of the cooling air of the salient pole rotor (11). The cylindrical rib (23) is provided with through-holes (231) extending from an inner space of the cylindrical rib (23) through gaps between a plurality of salient poles (25).

First claim

The invention claimed is:

1. A ventilation cooling type rotating machine comprising:
a salient pole rotor; and
a stator surrounding an outer circumference of the salient pole rotor with a predetermined interval to feed a cooling air from one end side of an axial direction of the salient pole rotor, wherein
the salient pole rotor includes:
a rotation shaft;
a disk-shaped spoke integrally installed to an outer circumference of the rotation shaft;
a cylindrical rib having an inner circumferential surface integrally installed to an outer circumference of the disk-shaped spoke; and
a plurality of salient poles arranged in a radial shape on an outer circumferential surface of the cylindrical rib, each of the salient poles being formed along an axial direction of the rotation shaft, wherein

the disk-shaped spoke is provided to an anti-feeding side end of the cooling air of the salient pole rotor,
the cylindrical rib is provided with through-holes extending from an inner space of the cylindrical rib through gaps between the plurality of salient poles, and
a discharge resistor is installed to an outer circumference of the rotation shaft facing the inner circumferential surface of the cylindrical rib.

2. The rotating machine according to claim 1 , wherein the disk-shaped spoke is provided with an air vent penetrating front and back sides of the disk-shaped spoke.

3. The rotating machine according to claim 1 , wherein a fin is integrally provided to an outer circumference of the discharge resistor along an axial direction of the rotation shaft to rotate in synchronization with the rotation shaft to generate a ventilation air in a radial direction.

Assignees

• Toshiba Mitsubishi Elec Ind

Inventors

• Mihara Takayuki
• Umeda Dan

Classifications

• H02K19/14

  having additional short-circuited windings for starting as asynchronous motors · CPC title

• H02K1/325 Primary

  between salient poles · CPC title

• H02K9/06

  with fans or impellers driven by the machine shaft · CPC title

• H02K1/24

  Rotor cores with salient poles {; Variable reluctance rotors} · CPC title