Unlock instant, AI-driven research and patent intelligence for your innovation.

Rotary electric machine and rotor thereof

A technology for rotating electrical machines and rotors, applied to synchronous motors with stationary armatures and rotating magnets, electrical components, electromechanical devices, etc., can solve the problems of reduced efficiency of rotating electrical machines, achieve the effects of suppressing efficiency reduction and improving cooling efficiency

Inactive Publication Date: 2019-07-30
HONDA MOTOR CO LTD
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat generated by such a rotating electrical machine causes the demagnetization of the permanent magnets installed on the rotor, etc., and becomes a factor that reduces the efficiency of the rotating electrical machine.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rotary electric machine and rotor thereof
  • Rotary electric machine and rotor thereof
  • Rotary electric machine and rotor thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Next, the rotor and the rotating electric machine according to the embodiment of the present invention will be described in detail with reference to appropriate drawings.

[0027] In addition, in the drawings shown below, the same reference numerals are assigned to the same member or corresponding members. In addition, for convenience of description, the size and shape of components may be deformed or exaggerated and schematically shown.

[0028] (Structure of the rotating electric machine 11 according to the embodiment of the present invention)

[0029] First, refer to Figure 1A , Figure 1B The rotating electric machine 11 according to the embodiment of the present invention will be described in detail.

[0030] Figure 1A It is a longitudinal sectional view showing the overall structure of the rotating electric machine 11 according to the embodiment of the present invention. Figure 1B will be Figure 1A It is an enlarged view showing the periphery of the rotor 2...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a rotary electric machine and a rotor thereof, which can inhibit the low efficiency of the rotary electric machine. The rotary electric machine (11) includes a cylindrical stator (15) having a stator core (27) on which stator coils (29) are provided, and a rotor (21) that is provided to be freely rotated in a hollow part of the stator (15) and includes a rotor core (31) supported on a rotating shaft and having a plurality of permanent magnets (35) provided therein in a circumferential direction thereof, and a pair of end face plates (41, 43) provided at end parts in an axial direction of the rotor core (31), respectively. The rotor core (31) has a refrigerant flow passage (37) provided therein, the refrigerant flow passage passing through the rotor core in the axialdirection. One end face plate (41) of the pair of end face plates is provided with a refrigerant introducing section (45) configured to introduce a refrigerant supplied via a refrigerant supply pipe (25) into the refrigerant flow passage (37).

Description

technical field [0001] The present invention relates to a rotor and a rotating electric machine capable of suppressing a reduction in efficiency of the electric rotating machine. Background technique [0002] Recently, vehicles in which a rotating electrical machine is mounted in addition to or instead of an internal combustion engine as a driving source have become widespread. Vehicles called hybrid electric vehicles (Hybrid Electric Vehicle) and electric vehicles (Electric Vehicle) are such vehicles. [0003] In a rotating electrical machine, when the rotating electrical machine is running, copper loss (loss caused by the resistance of the stator coil), iron loss (loss caused by the magnetic properties of magnetic materials such as the stator core), and mechanical loss (mechanical factors such as friction) will occur. Caused losses) including various losses and generate heat. Such heat generation of the rotating electrical machine leads to demagnetization of the permanen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/32
CPCH02K1/32H02K1/2766H02K21/14H02K1/276
Inventor 安田范史
Owner HONDA MOTOR CO LTD