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

Magnetic pulse ring, bearing unit, rotating electric machine and method for obtaining magnetic pulse ring

A magnetic pulse and bearing technology, applied in the field of obtaining magnetic pulse rings, rotating electric machines, and bearing units, can solve the problems of measurement and control errors, and the north and south poles of magnetic pulse rings are not exactly the same, so as to reduce electrical oscillation and improve magnetization , the effect of reducing the error

Pending Publication Date: 2021-01-05
AB SKF
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, due to fabrication and magnetization constraints, the north and south poles of the magnetic pulse ring are not exactly the same from the point of view of geometry and magnetic points, which leads to measurement and control errors

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
  • Magnetic pulse ring, bearing unit, rotating electric machine and method for obtaining magnetic pulse ring
  • Magnetic pulse ring, bearing unit, rotating electric machine and method for obtaining magnetic pulse ring
  • Magnetic pulse ring, bearing unit, rotating electric machine and method for obtaining magnetic pulse ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] figure 1 A magnetic impulse ring 60, a bearing unit 10 and a rotating electric machine 1 according to the invention are shown.

[0066] A rotary electrical machine (rotary electrical machine) 1 may be a motor, a generator or a starter-generator for a vehicle such as a passenger car.

[0067] The rotary electric machine 1 includes a rotor 2 , a bearing unit 10 and a magnetic detection part 3 . The rotor 2 , the bearing unit 10 and the magnetic impulse ring 60 are centered on the central axis X1 of the machine 1 .

[0068] The rotating electric machine 1 is designed to receive electrical power from an electrical source, such as a battery.

[0069] In a preferred embodiment, said machine is an electric motor ( / electric motor) for industrial or automotive ( / motor vehicle) applications. For example, the machine is an electric traction motor ( / electric traction motor) of a vehicle.

[0070] In another preferred embodiment of the invention, the electric rotating machine 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

A magnetic pulsar ring (60) having a central axis (X1), comprising a target holder (70) and a target (80) fixed to the target holder. The target includes a plurality of alternating south and north magnetic poles. The target is adapted to cooperate with the magnetic detection component (3) for tracking the rotation of the magnetic pulse around its central axis. The total pitch deviation (TPD) of the magnetic pulse ring is less than or equal to 0.5%.

Description

technical field [0001] The invention relates to a magnetic pulse ring. [0002] The invention also relates to a bearing unit comprising a magnetic pulse ring. [0003] The invention also relates to a rotating electric machine comprising a magnetic pulse ring. [0004] The invention finally relates to a method for obtaining a magnetic pulse ring. Background technique [0005] Magnetic pulse rings comprising multiple alternating north and south magnetic poles are commonly used today in various technical fields such as automotive, aerospace and other industrial applications. [0006] The magnetic detection part is configured to face the magnetic pulse ring. [0007] Conventional rotating electric machines comprising a stator and a rotor are sometimes equipped with a magnetic pulse ring fixed to the rotor and provided with detection means to track and / or control the angular position of the rotor relative to the stator. Such a pulse ring and rotary electric machine is known f...

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): F16C32/04H02K7/00H02K7/09H02K11/215
CPCF16C32/044F16C32/0444F16C32/047H02K11/215H02K7/09H02K7/003F16C2380/26F16C2326/01F16C19/06F16C33/586F16C41/007F16C2202/42F16C2240/56G01P3/443G01P3/487H02K7/08F16C19/16F16C33/581F16C2233/00H01F41/0266
Inventor 阿南达·库马尔·多迪马蒂厄·休伯特
Owner AB SKF