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Radial gap type rotating electrical machine, its manufacturing device and its manufacturing method

A technology of rotating electric machines and radial gaps, which is applied in the manufacture of stator/rotor bodies, magnetic circuit shapes/styles/structures, magnetic circuit static parts, etc., and can solve problems such as size and temperature constraints

Active Publication Date: 2022-03-01
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure can be designed to withstand to some extent the torque reaction force of the motor and the thermal stress when the temperature rises, but due to the difference in the linear expansion coefficient of the resin and the coil, the resin and the iron core, and the case material, the size of the motor and the Usable temperature conditions, etc. are limited

Method used

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  • Radial gap type rotating electrical machine, its manufacturing device and its manufacturing method
  • Radial gap type rotating electrical machine, its manufacturing device and its manufacturing method
  • Radial gap type rotating electrical machine, its manufacturing device and its manufacturing method

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Embodiment Construction

[0046] Embodiments of the present invention will be described below using the drawings and the like.

[0047] [Radial Gap Rotating Electric Machines]

[0048] figure 1 It is a schematic diagram showing an example (inner rotor type) of the radial gap rotating electrical machine of the present invention. like figure 1 As shown, the radial gap type rotating electrical machine 100a of the present invention includes: a rotating shaft 101, a rotor 110 including a rotor core 103 rotating around the rotating shaft 101, and a stator including a stator core 104 disposed opposite to the rotor core 103. 111. The rotor 110 includes a bearing 102 in addition to the rotating shaft 101 and the rotor core 103 . In addition, stator 111 includes coil 105 in addition to stator core 104 . The rotary electric machine 100 a includes a housing 106 in addition to a rotor 110 and a stator 111 .

[0049] Figure 2A yes means figure 1 A schematic diagram of the upper surface of the stator core, ...

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Abstract

The present invention provides a radial gap type rotating electrical machine capable of realizing high efficiency and using an amorphous metal excellent in productivity, a manufacturing apparatus thereof, and a manufacturing method thereof. The radial gap type rotating electrical machine of the present invention includes: a rotor having a rotating shaft and a rotor iron core rotatable around the rotating shaft; a stator having a stator iron core disposed opposite to the rotor iron core, and the stator iron core includes: The back yoke (2) has a plurality of concave parts arranged along the inner circumference; a tooth (1) whose one end is fitted with the concave part and the other end protrudes toward the rotor core, and the tooth (1) is made of amorphous metal.

Description

technical field [0001] The present invention relates to a radial gap rotating electric machine, its manufacturing device and its manufacturing method, and more particularly to a radial gap rotating electric machine using an amorphous metal as an iron core, its manufacturing device and its manufacturing method. Background technique [0002] Higher efficiency is required for rotating electric machines (motors) used as power sources for industrial machinery and for driving automobiles. Higher efficiency of motors is generally achieved by using low-loss materials as materials or by using high-energy-product permanent magnets. [0003] The loss of the motor mainly includes copper loss, iron loss and mechanical loss. If the output characteristics (speed and torque) of the specification are required, since the mechanical loss is uniquely determined, the design to reduce the iron loss and copper loss becomes important. Copper loss is mainly determined by the relationship between th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/16H02K1/18H02K15/02
CPCH02K1/16H02K1/18H02K15/02
Inventor 榎本裕治床井博洋
Owner HITACHI LTD