Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rotary transformer and rotation body with same

A technology of resolver and rotating body, which is applied in the field of detection, can solve the problems of the mutual restriction of volume and reliability of the resolver detection system, the increase of the axial length of the rotating body, and the increase in volume, so as to prevent adverse effects and improve reliability , the effect of less volume

Pending Publication Date: 2017-05-24
苏州昱泽智能科技有限公司
View PDF11 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, because two or more sets of rotary transformers need to be installed on the rotating body, the axial length of the rotating body will be increased, the volume will become larger, and the cost will be greatly increased.
It can be seen that there is a problem of mutual constraints between the occupied volume and reliability of the resolver detection system in the prior art

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 transformer and rotation body with same
  • Rotary transformer and rotation body with same
  • Rotary transformer and rotation body with same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0041] In the first embodiment, the value of S is 2, and the value of K is 9, so that the resolver has 12 stator detection teeth and 9 rotor salient poles. figure 1 Shown is a schematic cross-sectional view of the stator and rotor of the resolver in this embodiment. Both the stator core and the rotor core are formed by stamping silicon steel sheets. In this embodiment, 12 stator detection teeth are evenly distributed along the inner surface of the stator core; 9 rotor salient poles are evenly distributed along the outer circular surface of the rotor core.

[0042] There is an insulating winding skeleton on each stator detection tooth ( figure 1 not shown). There is only one coil wound on each stator detection tooth, 12 coils are distributed along the circumference of the 12 stator detection teeth, and the 12 stator detection teeth are distributed clockwise along the circumference as 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109, 1110, 1111, 1112. The inductance of e...

no. 2 example

[0099] In the second embodiment, the value of S is 1, and the value of K is 10, so that the resolver has 8 stator detection teeth and 10 rotor salient poles. Figure 4 Shown is a schematic cross-sectional view of the stator and rotor of the resolver in this embodiment. Both the stator core and the rotor core are formed by stamping silicon steel sheets. In this embodiment, 8 stator detection teeth are evenly distributed along the inner surface of the stator core; 10 rotor salient poles are evenly distributed along the outer circular surface of the rotor core. In this embodiment, the stator further includes 8 evenly distributed stator decoupling teeth 10 .

[0100] There is an insulating winding skeleton on each stator detection tooth ( Figure 4 not shown). There is only one coil wound on each stator detection tooth, and there are 8 coils distributed along the circumference of the 8 stator detection teeth, and the 8 stator detection teeth are distributed clockwise along the ...

no. 3 example

[0145] In the third embodiment, the body of the rotating body is a motor, and the resolver includes two detection coil systems as an example. Figure 6 Shown is a schematic structural view of the rotating body in this embodiment. Figure 6 Among them, 301 represents the casing shared by the resolver and the motor, 302 represents the stator of the resolver, and the stator 302 of the resolver is installed on the casing 301 shared by the motor; 303 represents the stator of the motor, and 304 represents the rotor core of the resolver, 305 represents the rotor core of the motor, the rotor core 304 of the resolver rotates with the rotor core 305 of the motor, 306 represents the rotating shaft; 3071 and 3072 represent the front and rear end covers respectively; 308 represents the bearing to ensure the smooth rotation of the rotor relative to the stator; the resolver includes two A set of detection coil system, thus including two sets of lead wires, 3091 and 3092 represent the first s...

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 present invention provides a rotary transformer and a rotation body with the same and belongs to the detection technical field. The rotary transformer comprises a stator and a rotor, wherein the stator is provided with stator detection teeth, and the rotor is provided with salient poles; the rotary transformer comprises at least two sets of detection coil systems; each set of detection coil system includes a plurality of coils wound on the stator detection teeth; inductance on the coils changes with the rotation angle of the rotor, so that the rotation angle of the rotor can be detected according to the change of the inductance of the coils; and the at least two sets of detection coil systems are arranged on the same stator. The rotation body includes a rotation main body and the above rotary transformer; and the rotation angle of the rotary transformer is in regular relation with the rotation angle of the rotation main body. According to the rotary transformer and the rotation body with the same of the invention, the at least two sets of detection coil systems can be arranged on one rotary transformer, and therefore, restriction between detection occupancy size and the reliability of detection results can be alleviated, and the reliability of the detection results can be improved, and the occupancy size can be greatly decreased.

Description

technical field [0001] The invention belongs to the technical field of detection, and relates to a transformer and a rotating body, in particular to a rotary transformer and a rotating body. Background technique [0002] Industries such as electric vehicles, industrial automation, robotics, textile machinery and aerospace all rely on high-performance control of rotating electrical machines, requiring motor rotation angle sensors and often requiring them to be used in high-temperature environments. [0003] Currently, photoelectric angle encoders are widely used because they can easily detect the rotation angle of motors. However, this kind of photoelectric angle encoder contains photoelectric components and semiconductor devices, so it cannot be used in high temperature environments. [0004] A resolver is a sensor that can detect rotation angles. Since it does not use a photoelectric conversion device, it can be used in a higher temperature environment. However, in the exi...

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): H02K24/00H02K1/14H02K1/24H02K3/28
CPCH02K1/14H02K1/24H02K3/28H02K24/00H02K2213/03
Inventor 高翔
Owner 苏州昱泽智能科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com