Enameled wire pinhole defect detection method

A defect detection and enameled wire technology, applied in the direction of measuring electricity, measuring device, only measuring current, etc., can solve the problems of less data dimension, limited ability to improve the accuracy and reliability of enameled wire defect detection, etc., to increase the dimension of information, improve The effect of precision and reliability

Pending Publication Date: 2022-01-21
ZHUHAI GREE ELECTRIC ENTERPRISES +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Although the above scheme distinguishes and counts different defect sizes, and sets different judgment thresholds for enameled wire defect detection according to different defect sizes, it only incorporates the information of one dimension of defect quantity into the detection basis for defect detection The data dimension of judgment is small, and the ability to improve the accuracy and reliability of enameled wire defect detection is limited

Method used

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  • Enameled wire pinhole defect detection method
  • Enameled wire pinhole defect detection method
  • Enameled wire pinhole defect detection method

Examples

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Embodiment 1

[0065] The patent document with the notification number CN109142445B provides an online defect detection method for enameled wire, which judges whether a defect with preset defect conditions occurs within the length of the detection unit on the surface of the currently detected enameled wire, and if so, sends an alarm message; Assume that the defect condition includes at least one of the following: the number of first particles larger than the first particle size is greater than the first value, and the number of second particles larger than the second particle size and smaller than the first particle size is greater than the second value.

[0066] Although the above scheme distinguishes and counts different defect sizes, and sets different judgment thresholds for enameled wire defect detection according to different defect sizes, it only incorporates the information of one dimension of defect quantity into the detection basis for defect detection The data dimension of the judg...

Embodiment 2

[0089] The embodiment of the present application provides another embodiment of the enameled wire pinhole defect detection method so that those skilled in the art can understand the solution.

[0090] In the embodiment of the present application, the K pinhole size types in Embodiment 1 include: super large pinhole, large pinhole, small pinhole and no pinhole; correspondingly, the pinhole count value includes: super large pinhole count value , a large pinhole count value and a small pinhole count value; correspondingly, the pinhole frequency count value includes: a super large pinhole frequency count value, a large pinhole frequency count value and a small pinhole frequency count value.

[0091] The following will combine figure 2 Describe in detail.

[0092] See figure 2 , the enameled wire pinhole defect detection method, comprising:

[0093] 201. Obtain a detection data set with a preset detection length;

[0094] Wherein, the detection data set includes: N detection ...

Embodiment 3

[0118] On the basis of obtaining the pinhole count value and the pinhole frequency count value through the enameled wire pinhole defect detection method of the second embodiment above, the embodiment of the present application provides a combination of the pinhole count value and the pinhole frequency count value to detect enameled wire A method for detecting and judging pinhole defects.

[0119] The following combination image 3 Describe in detail.

[0120] See image 3 , the method for detecting and judging enameled wire pinhole defects, comprising:

[0121]301. Obtain the pinhole frequency count value corresponding to each pinhole size type in the preset detection length, and the pinhole count value corresponding to each pinhole size type in each unit detection length;

[0122] In the embodiment of the present application, the pinhole frequency count value corresponding to each pinhole size type in the preset detection length, and the pinhole count value corresponding t...

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Abstract

The invention relates to an enameled wire pinhole defect detection method. The method comprises the following steps: acquiring a detection data set with a preset detection length, wherein the detection data set comprises detection current data groups of N unit detection lengths, n is a positive integer, and the detection current data set comprises M detection current values; carrying out pinhole identification on each detection current value of the N unit detection lengths, and obtaining existence conditions of the K pinhole size types in the N unit detection lengths, wherein the existence condition comprises a pinhole count value; and according to the existence condition, determining a pinhole frequency count value P corresponding to the K pinhole size types in the preset detection length, wherein the pinhole frequency count value is the number of unit detection lengths with the current pinhole size type in the preset detection length. According to the scheme provided by the invention, the information dimension in the detection of the pinhole defect of the enameled wire can be increased, so that the accuracy and reliability of the detection of the pinhole defect of the enameled wire are improved.

Description

technical field [0001] The present application relates to the technical field of enameled wire production, in particular to a detection method for pinhole defects in enameled wires. Background technique [0002] Enameled wire is the wire used in the motor winding. When the enameled wire is wound on the frame of the motor stator, multiple enameled wires will contact each other. In order to achieve mutual insulation between multiple enameled wires, it is necessary to wrap a layer of insulating varnish on the outside of the copper wire. [0003] However, when the enameled wire coating equipment is coated with insulating varnish, it is difficult to ensure that the surface of the insulating varnish is smooth and flat. The formation of pinholes on the surface of a paint. Since these defects on the surface of the enameled wire will affect the insulation performance or electrical performance of the enameled wire, it is necessary to detect the defects on the surface of the enameled ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R19/00
CPCG01R31/00G01R19/0092
Inventor 高辉郭圣波黄代忠袁伟刚
Owner ZHUHAI GREE ELECTRIC ENTERPRISES
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