Check patentability & draft patents in minutes with Patsnap Eureka AI!

Rotary Electric Machine

A technology for rotating electrical machines and rotors, applied in electrical components, electromechanical devices, electrical components, etc., to solve problems such as decreased detection accuracy

Inactive Publication Date: 2014-09-17
YASKAWA DENKI KK
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it is difficult to ensure high resolution by providing a large number of slits, etc. on the outer periphery of the disk, resulting in a decrease in detection accuracy

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
  • Rotary Electric Machine
  • Rotary Electric Machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Hereinafter, disclosed embodiments will be described with reference to the drawings.

[0014] First, use figure 1 , the structure of the rotating electric machine 1 of this embodiment will be described. like figure 1 As shown, the rotating electrical machine 1 is an inner rotor type direct drive motor (hereinafter, referred to as a DD motor) having a fixed portion 10 and a rotating portion 20 . The rotating electrical machine 1 has a rotating portion 20 inside the fixed portion 10 .

[0015] The fixed portion 10 has a substantially cylindrical housing 11 (corresponding to a fixed member), a base portion 12 , a stator 13 , and two bearings 14x, 14y. In addition, the number of bearings 14x and 14y is not limited to two, as long as it is one or more. Between the two bearings 14x, 14y, inner and outer two-layered rings 14A, 14B are arranged. The spacer 14A on the inner peripheral side is a component on the fixed side. The bushing 14B on the outer peripheral side is ...

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. The rotary electric machine (1) is provided with a stator (13); a rotator (21) is configured opposite to the radial inner side of the stator (13) spaced by a magnetic gap (2); a rotary cover (22) which is connected with the rotator (21) and covers the end part of one axial side of the stator (13); a to-be-detected part (28) arranged on a stator side (13) in the rotary cover (22); and a detection part (18) detecting the position of the to-be-detected part (28) in an optical way.

Description

technical field [0001] The disclosed embodiments relate to rotating electric machines. Background technique [0002] There is known a rotating electric machine including a stator, a rotor, and a cover attached to the rotor (for example, refer to Japanese Patent No. 4572591). This rotating electric mechanism is of a so-called outer rotor type in which the rotor is provided radially outside the stator. A substantially annular cover is fixed to an axial end portion of the rotor so as to cover one axial side of the stator. In addition, on the other side in the axial direction of the rotor, there is provided a rotary disk that is a detection target of an encoder (resolver) that detects the position in the rotational direction of the rotor. [0003] As described above, the above-mentioned conventional rotating electric machines are of the outer rotor type. Therefore, the diameter of the rotary disk provided on the axial end side of the rotor can be increased. As a result, for ...

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): H02K11/00H02K5/10H02K5/04
CPCH02K5/04H02K5/10H02K5/16H02K11/00
Inventor 山岸俊幸松谷泰裕
Owner YASKAWA DENKI KK
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com