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

Method for preparation of DC motor brushless commutator

A manufacturing method and DC motor technology, applied in current collectors, rotating current collectors, circuits, etc., can solve the problems of unusable sensing time lag, insufficient reliability of sensing units, and high cost, and achieve low cost and reduced cost , commutation good effect

Inactive Publication Date: 2011-06-08
严密 +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned existing technologies have disadvantages such as high cost, insufficient reliability, and limited by the sensing time lag of the sensing unit, they cannot be used for commutation of DC motors at higher speeds (for example, ≥50000rpm)

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
  • Method for preparation of DC motor brushless commutator
  • Method for preparation of DC motor brushless commutator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] In one embodiment of the present invention, a DC motor brushless commutator structure as attached figure 1 Shown: The commutator is composed of a position sensing unit for providing correct commutation information and a switch unit for processing the commutation information. The position sensing unit uses magnetic force effect to provide correct commutation information while the switch unit adopts mechanical contact method to process commutation information.

[0015] Above-mentioned position sensing unit is divided into rotor part and stator part, and its rotor part is made up of the permanent magnet (1) that is positioned at rotating shaft (7) and rotor main magnetic pole (9) number is equal and the pole direction is identical (in another aspect of the present invention In an embodiment, the permanent magnet is located on the rotor), and its stator part is composed of permanent magnets (2) on the stator that are equal in number to the permanent magnets (1), and the per...

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 discloses a manufacturing method of direct current motor brushless commutator which comprises position sensing unit which provides right commutating information and switch unit which processes commutating information, the position sensing unit uses magnetic force effect and the switch unit uses mechanical contacting. The brushless commutator produced by this method possesses advantages that cost is low, reliability is high, and it is can be used in direct current motor with high rotate speed.

Description

(1) Technical field [0001] The invention relates to a manufacturing method of a DC motor brushless commutator. (2) Background technology [0002] It is known that a DC motor is composed of a motor body and a brushless commutator. During operation, the process in which the current in the stator winding changes direction with the position of the rotor magnetic field pole is called commutation. The purpose of commutation is to keep the stator and rotor magnetic field poles at an electrical angle of about 1 / 2rad in space, otherwise the DC motor will Inoperable, a brushless commutator is a commutator in which the components on the stator and rotor of the commutator do not make mechanical contact. At present, the DC motor brushless commutator adopts the method of electronic commutation, which includes a position sensing unit and an electronic switch circuit unit. The position sensing unit mainly includes: the photoelectric type using the photoelectric effect, and the electromagne...

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 Patents(China)
IPC IPC(8): H01R39/04H02K29/08
Inventor 严密唐荫溥
Owner 严密
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