CN109324086A - A kind of solder joint lossless detection method welding winding - Google Patents
A kind of solder joint lossless detection method welding winding Download PDFInfo
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- CN109324086A CN109324086A CN201811193274.1A CN201811193274A CN109324086A CN 109324086 A CN109324086 A CN 109324086A CN 201811193274 A CN201811193274 A CN 201811193274A CN 109324086 A CN109324086 A CN 109324086A
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- solder joint
- temperature
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- welding quality
- winding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention provides a kind of solder joint lossless detection method for capableing of welding winding that rapidly and efficiently welding quality carries out non-destructive testing.It includes the following steps: with electric current i through the satisfactory solder joint of welding quality, after time t, measures temperature, that is, normal temperature of the satisfactory solder joint of welding quality；The actual temperature i.e. test temperature of certain solder joint is measured after time t by certain solder joint of tested welding winding with electric current i；If certain solder joint test temperature is higher than normal temperature certain numerical value, illustrate that its welding quality is problematic；Otherwise, illustrate that its welding quality meets the requirements.
Description
Technical field
The present invention relates to the detection methods of each quality of welding spot in the welding winding of motor.
Background technique
Rectangular section conducting wire machine winding has better heat dissipation performance compared to conventional circular section conducting wire machine winding
And copper factor, therefore increasingly by the favor of industry.Most of rectangular conductor winding is welding winding, has many solder joints,
With the development of the technology of rectangular conductor motor, how to guarantee that solder joint welding quality is most important, welding side can only be relied at present
Method carries out process control, the efficient detection without effective lossless detection method, for solder joint.
Summary of the invention
It is capable of welding winding that rapidly and efficiently welding quality carries out non-destructive testing the object of the present invention is to provide a kind of
Solder joint lossless detection method.
The solder joint lossless detection method of welding winding of the present invention, includes the following steps:
A: with electric current i by the satisfactory solder joint of welding quality, after time t, the satisfactory weldering of welding quality is measured
Temperature, that is, normal temperature of point；
B: with electric current i by certain solder joint of tested welding winding, after time t, the actual temperature for measuring certain solder joint is tested
Temperature；
C: if certain solder joint test temperature is higher than normal temperature certain numerical value, illustrate that its welding quality is problematic；Otherwise, illustrate its weldering
Connect satisfactory quality.
The solder joint lossless detection method of above-mentioned welding winding measures temperature in step a or step b with thermal imaging apparatus
Degree.
The solder joint lossless detection method of above-mentioned welding winding in step b, passes through the more of tested welding winding with electric current i
A solder joint measures the actual temperature of multiple solder joints with thermal imaging apparatus after time t simultaneously.
The solder joint lossless detection method of above-mentioned welding winding in step a, is met the requirements with electric current i by welding quality
Multiple solder joints, after time t, measure the satisfactory multiple solder joints of welding quality temperature, take being averaged for measurement result
Value is used as normal temperature；In step c, if certain solder joint test temperature is higher than normal temperature certain numerical value, illustrate that its welding quality has
Problem；Otherwise, illustrate that its welding quality meets the requirements.
The solder joint lossless detection method that the present invention provides a kind of welding winding is to use the power on heat condition, judges pad
Welding quality.Its principle is, in the case where identical electric current flows through solder joint, to weld reliable solder joint, and resistance value is small, fever
Measure small, temperature is low, otherwise temperature is high, is carried out non-destructive testing using this principle to winding solder joint.
Specifically, determine the satisfactory solder joint of welding by certain mode first, it is certain to determine that it passes through
Temperature under electric current, in this, as judging whether solder joint welds good judgment criteria temperature and (can also first be powered and acquire solder joint
Then temperature separates conducting wire from solder joint, judge that conducting wire welding is good).Then, in the conducting wire after welding, pass through one
Fixed electric current, makes solder joint generate heat, and by temperature testing equipment, detects the temperature of solder joint, with the good weldering of welding acquired before
Point temperature is compared, and judges welding quality: if tested weld point temperature (can be set certain not higher than normal temperature above-mentioned
Deviation range), illustrate that welding is good, otherwise, welding quality is bad.
The temperature testing equipment, it is preferred that it is capable of the equipment of the multiple points of one-time detection, such as thermal imaging apparatus,
It can be other equipment that temperature is detected by contact or cordless.
Beneficial effects of the present invention: butt welding point judges its quality by electric current, according to temperature, realizes lossless inspection
It surveys, and multiple solder joints can be detected simultaneously, efficient quick.
Specific embodiment
Using the thermal imaging system with temperature detection and analytic function, as detection means.
By taking 48 slots, 8 layers of welding winding as an example, a winding has 8 layer conductors, has 48 welderings in winding side every two layers
Point.
First with the welding procedure and equipment of welding winding, a welding lead solder joint is made, is led in conducting wire certain
Electric current (electric current i), makes solder joint and conductor overheating, use thermal imaging system detect weld point temperature, be powered certain time (time t)
Weld point temperature afterwards (can set certain deviation as normal temperature, by the alarm temperature that this temperature standard is set as thermal imaging system
Value).
Then to welding winding between two layer conductors being welded to each other, galvanization i detects all solder joints with thermal imaging system
Temperature, when conduction time reaches time t, thermal imaging system records the temperature of all solder joints, by each solder joint compared with normal temperature, temperature
Solder joint higher than the normal temperature upper limit is Abnormal welding point, and the analysis software of thermal imaging system issues exception information.
The method can disposably detect multiple solder joints, and detection efficiency is high.
Claims (4)
1. a kind of solder joint lossless detection method for welding winding, it is characterized in that: including the following steps:
A: with electric current i by the satisfactory solder joint of welding quality, after time t, the satisfactory weldering of welding quality is measured
Temperature, that is, normal temperature of point；
B: with electric current i by certain solder joint of tested welding winding, after time t, the actual temperature for measuring certain solder joint is tested
Temperature；
C: if certain solder joint test temperature is higher than normal temperature certain numerical value, illustrate that its welding quality is problematic；Otherwise, illustrate its weldering
Connect satisfactory quality.
2. the solder joint lossless detection method of welding winding as described in claim 1, it is characterized in that:
In step a or step b, with thermal imaging apparatus measuring temperature.
3. the solder joint lossless detection method of welding winding as described in claim 1, it is characterized in that: in step b, it is logical with electric current i
The multiple solder joints for crossing tested welding winding measure the actual temperature of multiple solder joints with thermal imaging apparatus after time t simultaneously.
4. the solder joint lossless detection method of welding winding as described in claim 1, it is characterized in that: in step a, it is logical with electric current i
The satisfactory multiple solder joints of welding quality are crossed, after time t, measure the temperature of the satisfactory multiple solder joints of welding quality
Degree, takes the average value of measurement result as normal temperature；In step c, as certain solder joint test temperature is higher than one fixed number of normal temperature
Value, illustrates that its welding quality is problematic；Otherwise, illustrate that its welding quality meets the requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811193274.1A CN109324086A (en) | 2018-10-14 | 2018-10-14 | A kind of solder joint lossless detection method welding winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811193274.1A CN109324086A (en) | 2018-10-14 | 2018-10-14 | A kind of solder joint lossless detection method welding winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109324086A true CN109324086A (en) | 2019-02-12 |
Family
ID=65262013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811193274.1A Pending CN109324086A (en) | 2018-10-14 | 2018-10-14 | A kind of solder joint lossless detection method welding winding |
Country Status (1)
| Country | Link |
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| CN (1) | CN109324086A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922547A (en) * | 2020-07-27 | 2020-11-13 | 苏州索尔达动力科技有限公司 | System and method for detecting and evaluating welding quality of flat copper wire stator welding end |
| CN112229976A (en) * | 2020-12-14 | 2021-01-15 | 快克智能装备股份有限公司 | Welding spot quality detection method |
| CN113791367A (en) * | 2021-09-09 | 2021-12-14 | 湖北亿纬动力有限公司 | Method and device for detecting welding effect of battery pole |
Citations (4)
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| WO2005118201A1 (en) * | 2004-06-04 | 2005-12-15 | Newfrey Llc | Apparatus and method for nondestructive testing of the joint quality of stud welded joints |
| CN1939646A (en) * | 2005-09-28 | 2007-04-04 | 上海太阳能科技有限公司 | Welding-performance testing and tester for solar battery and its assembly |
| CN105445434A (en) * | 2015-12-22 | 2016-03-30 | 宝山钢铁股份有限公司 | Pipeline steel pipe on-site girth welding evaluation method |
| KR20160041533A (en) * | 2014-10-08 | 2016-04-18 | 주식회사휴비스 | Automatic recording system for welding conditions |
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2018
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Patent Citations (4)
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|---|---|---|---|---|
| WO2005118201A1 (en) * | 2004-06-04 | 2005-12-15 | Newfrey Llc | Apparatus and method for nondestructive testing of the joint quality of stud welded joints |
| CN1939646A (en) * | 2005-09-28 | 2007-04-04 | 上海太阳能科技有限公司 | Welding-performance testing and tester for solar battery and its assembly |
| KR20160041533A (en) * | 2014-10-08 | 2016-04-18 | 주식회사휴비스 | Automatic recording system for welding conditions |
| CN105445434A (en) * | 2015-12-22 | 2016-03-30 | 宝山钢铁股份有限公司 | Pipeline steel pipe on-site girth welding evaluation method |
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| 何志刚: "基于X射线成像的BGA焊接质量检测技术", 《电子工艺技术》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922547A (en) * | 2020-07-27 | 2020-11-13 | 苏州索尔达动力科技有限公司 | System and method for detecting and evaluating welding quality of flat copper wire stator welding end |
| CN112229976A (en) * | 2020-12-14 | 2021-01-15 | 快克智能装备股份有限公司 | Welding spot quality detection method |
| CN112229976B (en) * | 2020-12-14 | 2021-04-13 | 快克智能装备股份有限公司 | Welding spot quality detection method |
| CN113791367A (en) * | 2021-09-09 | 2021-12-14 | 湖北亿纬动力有限公司 | Method and device for detecting welding effect of battery pole |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190212 |
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| RJ01 | Rejection of invention patent application after publication |