Method and system for detecting wiring sequence of rotary transformer

A rotary transformer and wiring sequence technology, applied in the direction of using electric/magnetic devices to transmit sensing components, etc., can solve the problems of no error prevention means for manual judgment, high cost of visual judgment, and outflow of defective products, so as to reduce the outflow of defective products risk, increase labor productivity, and increase the effect of qualified rate

Pending Publication Date: 2021-11-02
智新科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no error-proof means for manual judgment, and it is easy to misjudgment due to the visual fatigue of the inspectors, resulting in the outflow of defective products, and the cost of visual judgment is high and the efficiency is low

Method used

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  • Method and system for detecting wiring sequence of rotary transformer
  • Method and system for detecting wiring sequence of rotary transformer
  • Method and system for detecting wiring sequence of rotary transformer

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific examples described here are only used to explain the present invention, not to limit the present invention. In addition, based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0038] Such as Figure 1 to Figure 3 As shown, it is the structural schematic diagram and winding schematic diagram of the resolver, in which, S1-S2 is the stator excitation winding (referred to as the excitation winding), S3-S4 is the stator quad...

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Abstract

The invention provides a rotary transformer wiring sequence detection method and system and belongs to the technical field of intelligent power grids. The method comprises steps that actual resistance values of an excitation winding, a sine winding and a cosine winding in a no-load state are collected, a preset resistance value judgment table is queried, and whether wiring errors exist among the three windings or not is determined; if wiring among the three windings is correct, actual output signals of the sine winding and the cosine winding in the no-load state are collected and processed to obtain the rotary transformation angle of the rotor relative to the stator, a preset angle judgment table is inquired, and whether positive and negative pole reverse connection errors exist in each winding in the three windings or not is judged. According to the method, the risk of outflowing of fault products is greatly reduced, the one-time off-line qualification rate is improved, the repair time is reduced, and labor productivity of the assembly line of the electric drive assembly is improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a method and system for detecting the wiring sequence of a rotary transformer. Background technique [0002] The resolver is a kind of precision control micro-motor in the automatic control device. It can be considered as a transformer that can rotate. The primary and secondary windings of this transformer are placed on the stator and rotor respectively. When the primary side of the resolver is excited by an AC voltage, the output voltage of the secondary side will maintain a strict functional relationship with the rotation angle of the rotor, so as to realize the detection, calculation or transmission function of the angle. [0003] At present, the mainstream suppliers of resolvers have a large minimum order quantity, all of which are produced in batches, and rarely accept non-standard customization. In the motor manufacturing industry, due to different structures, res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/20
CPCG01D5/20
Inventor 李维虎李荡张帅康超姜子南谢守祥
Owner 智新科技股份有限公司
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