 Insulated electrical conductor containing free-flowing mica |
| Accordingly, it is an object of this invention to provide an electrical product that utilizes ... |
|
| Molecular vacuum pump with a gas-cooled rotor |
| This and other objects of the invention, which will become apparent hereinafter, are achieved by ... |
|
| Hydrodynamic type porous oil-impregnated bearing and bearing device |
| Objects of the invention are: (1) To reduce the number of parts of the bearing to 2, while reducing ... |
|
| Tangential torque support |
| Referring to FIG. 1, a superconducting rotating machine 10 has a stator assembly 12 including ... |
|
| Alternator starter |
| The alternator starter according to one embodiment of the present invention is primarily designed ... |
|
| Torque converter having a continuous slip bypass clutch with multiple friction plates |
| What is claimed is: 1. In a torque converter having a front cover and an interconnected pump casing ... |
|
| Electric motor drive system |
| One feature of the invention to attain the above object resides in a structure, which comprises a ... |
|
| Hybrid drive in a motor vehicle |
| The invention teaches that this object can be accomplished for a modular unit in which there is ... |
|
| Electric hybrid transmission with a torque converter |
| A torque converter is positioned in the transmission and provided with selectively engageable ... |
|
| Turboalternator for hybrid motor vehicle |
| It is, therefore, one object of the present invention to provide a new and improved hybrid motor ... |
|
|
Magneto generator
| Details |
Inventors: Serizawa, Makoto; Komatsu, Shinji;
Assignee: Kokusan Denki Co., Ltd. (Shizuoka-Ken, JP)
Primary Examiner: Mullins; Burton
Assistant Examiner:
Attorney, Agent or Firm: Pearne & Gordon LLP
A magneto generator including: a magnet rotor having a cup-shaped rotor yoke formed with a plurality of air vents in a bottom wall and a permanent magnet secured to an inner periphery of a peripheral wall of the rotor yoke; and an armature having an armature coil, wherein a cooling air introducing portion is provided for each of the plurality of air vents, a cooling air introducing passage for introducing cooling air into a corresponding air vent is formed inside the cooling air introducing portion, the cooling air introducing passage has a rectangular section, and opens in a sloping direction with respect to the direction orthogonal to a plane including both a straight line between the center of the bottom wall and the center of the air vent, and a central axis of the magnet rotor. |
|
DETAILED DESCRIPTION An object of the present invention is to provide a magneto generator capable of blowing cooling air larger in amount than a conventional magneto generator on an armature through an air vent provided in a bottom wall of a rotor yoke to enhance the cooling effect of the armature.
The invention is directed to a magneto generator including: a magnet rotor having a cup-shaped rotor yoke with a peripheral wall and a bottom wall, and a permanent magnet mounted to an inner periphery of the peripheral wall of the rotor yoke; and an armature placed inside the magnet rotor.
In the invention, the bottom wall of the rotor yoke is drilled at a portion closer to an outer periphery to circumferentially provide a plurality of air vents in the peripheral wall of the rotor yoke, and a hollow cooling air introducing portion is provided for each of the plurality of air vents.
Each cooling air introducing portion is provided to protrude in an opposite direction to an opening in the peripheral wall of the rotor yoke and cover at least a part of a corresponding air vent, and a cooling air introducing passage is formed inside the cooling air introducing portion.
An end of the cooling air introducing passage inside the cooling air introducing portion communicates with the inside of the rotor yoke through a corresponding air vent, while the other end of the cooling air introducing passage inside the cooling air introducing portion opens forward in the rotational direction of the magnet rotor through an opening end provided in the cooling air introducing portion.
The cooling air introducing portion has an outer side wall provided to extend in a sloping direction from near a corresponding air vent toward an outer peripheral portion of the rotor yoke and reach the opening end of the cooling air introducing portion.
The opening end of the cooling air introducing portion is directed in a sloping direction toward an inner diameter of the rotor yoke with respect to the direction orthogonal to a reference plane including both a straight line between the center of the bottom wall of the rotor yoke and the center of a corresponding air vent, and a central axis of the rotor yoke
|
| Related patents |
|
|
Alternator for vehicles having permanent magnets in rotor
The present invention addresses this problem, and has an object to improve electric power generated by an alternator without complicating manufacturing and assembling ...
|
|
|
Compliant vibration isolation housing assembly for a data storage system
The present invention is a vibration isolation apparatus and method for attenuating vibrations in a data storage system housing. A spindle motor assembly is mounted to a ...
|
|
|
Apparatus for absorbing stator vibrations in computer storage apparatus
Accordingly, one object of the present invention is to provide a rotary driving apparatus that controls vibration and noise caused by high speed rotation of a rotor. By ...
|
|
|
Easy to manufacture covering device of a hard disk drive that dampens vibrations and seals internal components within
Accordingly, the present invention has been made in an effort to solve the problems occuring in the related art, and a primary object of the present invention is to ...
|
|
|
Magnetic disc unit
An object of the present invention is to provide a rotary recording apparatus which can, on one hand, prevent flutter causing errors in positioning from increasing even ...
|
|
|
Disk driving motor and chucking mechanism for disk drive apparatus
It is an object of the present invention to simplify the configuration of a disk driving motor assembly which includes a disk chucking mechanism, and to decrease the ...
|
|
|
Bearing system with flexible bearing bracket
The present invention provides a bearing system comprising a bearing supported in a flexible bearing bracket, for example for use in fractional horsepower shaded pole ...
|
|
|
Internally damped stator, rotor, and transformer and a method of making
The present invention provides in one embodiment an internally damped core, wherein the core is selected from the group consisting of stator, rotor, and transformer ...
|
|
|
Electric rotating machine for vehicle
The present invention has been made to solve the above-discussed problems and has an object of reducing not only cost and manufacturing processes but also resistance of ...
|
|
|
Electric motor construction
I claim: 1. An electric motor comprising a housing means, said housing means including first and second housing members, said first and second housing members having ...
|
|
|
Generators or Motors 
