CN113963945A - Method for soldering tin between high-frequency inductor enameled wire and wire-wound column on railway transponder - Google Patents
Method for soldering tin between high-frequency inductor enameled wire and wire-wound column on railway transponder Download PDFInfo
- Publication number
- CN113963945A CN113963945A CN202111260851.6A CN202111260851A CN113963945A CN 113963945 A CN113963945 A CN 113963945A CN 202111260851 A CN202111260851 A CN 202111260851A CN 113963945 A CN113963945 A CN 113963945A
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- CN
- China
- Prior art keywords
- tin
- frequency inductor
- transponder
- enameled wire
- wire
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/10—Connecting leads to windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention provides a method for soldering tin between a high-frequency inductor enameled wire and a wire-wound column on a railway transponder, which aims to solve the technical problems that: the failure rate of the railway transponder is high. The key points of the invention are as follows: after the high-frequency inductor enameled wire is subjected to tinning treatment on the winding post, then tin dipping treatment is carried out, and a layer of soldering tin is wrapped around the enameled wire and the winding post; the tin of the subsequent tin dip has a melting point lower than that of the tin of the previous tin dip, to the extent that the tin of the tin dip cannot be melted when the high frequency inductor is soldered to the transponder. The invention has the positive effects that: the problem that a person skilled in the art is eagerly to solve is solved, the fault of the railway transponder and the high-frequency inductor thereof is found, and a large amount of scrap cost is saved for all enterprises using the high-frequency inductor, particularly railway transponder manufacturing enterprises.
Description
Technical Field
The invention relates to a high-frequency inductor, in particular to a high-frequency inductor applied to a railway transponder.
Background
The high-frequency inductor used on the railway transponder comprises an enameled wire wound on a framework, wherein after two ends of the enameled wire are respectively wound on wire-wound columns at two sides, the enameled wire and the wire-wound columns are welded and connected by soldering tin; the internal structure of the high-frequency inductor is encapsulated by epoxy resin; after the high-frequency inductor is installed on a railway transponder, the railway transponder is a potting product. The railway responder has a fault in field operation, and the current fault positioning and processing method is that the railway responder is tested firstly and the fault of the circuit where the high-frequency inductor is positioned; secondly, replacing the high-frequency inductor, namely removing the pouring sealant of the railway transponder, detaching the high-frequency inductor positioned as a fault, and then welding a new high-frequency inductor again; the railway transponder after replacing the high frequency inductor was again tested and shown to be acceptable. The internal structure of the high-frequency inductor is encapsulated by epoxy resin, the railway transponder using the high-frequency inductor is also a potting product, the difficulty of fault location of a faulted railway transponder by replacing a new high-frequency inductor is high, and the transponder is a potting product, so that the transponder can only be scrapped after fault location, cannot be repaired and used for the second time, and a new transponder needs to be compensated for a user without compensation. In practice, there are many railway transponders with the same fault, and the fault of the transponder causes high after-sale cost loss, which brings great burden to enterprises.
Disclosure of Invention
Generally speaking, it goes against the common rationale that so many high frequency inductors are defective products, but the reason why the failure rate of the transponder is high is confusing for those skilled in the art. Therefore, the inventor carried out inductance value test on the removed high-frequency inductor, and found that most high-frequency inductors are qualified products. The inventors then conducted an in-depth analysis of this inductance: firstly, irradiating the disassembled high-frequency inductor by using X-ray perspective equipment, finding that the solder tin wrapped around the winding posts on two sides of the enameled wire in the enameled wire is very little or even can not be seen, then inlaying and sample-making the inductor, firstly grinding one side of an electrode A by using a grinding and polishing machine, roughly grinding the sample piece along the X-axis direction until the enameled wire is exposed, then starting to finely grind, and grinding one layer to observe one layer by using a microscope, and seeing whether the solder tin exists between the enameled wire and the winding posts, finding that the enameled wire only has three very small solder points on the winding posts, and the rest positions have no solder tin. The conclusion is that: the enameled wire is in a cold joint state on the winding post, namely, the manufacturing quality defect exists. Therefore, the invention aims to provide the high-frequency inductor enameled wire and the wire-wound column tin soldering method.
The purpose of the invention is realized as follows: the high-frequency inductor enameled wire is subjected to tin coating treatment on the winding post, then tin dipping treatment is carried out, and a layer of soldering tin is wrapped around the enameled wire and the winding post. In order to prevent the tin previously applied from melting away during the tin pick-up process, the melting point of the tin subsequently applied is lower than that of the tin previously applied, and is so low that the tin applied cannot be melted to the limit when the high-frequency inductor is soldered to the transponder, thereby ensuring reliable tin pick-up.
Compared with the prior art, the invention has the following positive effects: the problem that a railway responder and a high-frequency inductor thereof have faults is solved, a large amount of scrap cost is saved for enterprises using the high-frequency inductor, particularly railway responder manufacturing enterprises, meaningful guidance is provided for the high-frequency inductor manufacturing enterprises to improve the product quality, and the quality and the reliability of the whole high-frequency inductor are improved.
Detailed Description
The high-frequency inductor enameled wire and winding post tin soldering method is that after the enameled wire is subjected to tin soldering treatment on the winding post, tin dipping treatment is carried out, and a layer of soldering tin is wrapped around the enameled wire and the winding post. In order to prevent the tin previously applied from melting away during the tin pick-up process, the melting point of the tin subsequently applied is lower than that of the tin previously applied, and is so low that the tin applied cannot be melted to the limit when the high-frequency inductor is soldered to the transponder, thereby ensuring reliable tin pick-up. In the present embodiment, SN10Pb88Ag02 is used as the tin previously coated with tin; and the tin adhered with tin at the back adopts Sn99Cu0.7.
Claims (1)
1. A method for soldering tin between a high-frequency inductor enameled wire and a wire-wound column on a railway transponder is characterized by comprising the following steps: after the high-frequency inductor enameled wire is subjected to tinning treatment on the winding post, tin dipping treatment is carried out, and a layer of soldering tin is wrapped around the enameled wire and the winding post; the tin of the subsequent tin dip has a melting point lower than that of the tin of the previous tin dip, to the extent that the tin of the tin dip cannot be melted when the high frequency inductor is soldered to the transponder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260851.6A CN113963945A (en) | 2021-10-28 | 2021-10-28 | Method for soldering tin between high-frequency inductor enameled wire and wire-wound column on railway transponder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111260851.6A CN113963945A (en) | 2021-10-28 | 2021-10-28 | Method for soldering tin between high-frequency inductor enameled wire and wire-wound column on railway transponder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113963945A true CN113963945A (en) | 2022-01-21 |
Family
ID=79467833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111260851.6A Withdrawn CN113963945A (en) | 2021-10-28 | 2021-10-28 | Method for soldering tin between high-frequency inductor enameled wire and wire-wound column on railway transponder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113963945A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0778640A (en) * | 1993-09-10 | 1995-03-20 | Fujitsu Ltd | Contact structure with oxide superconductor and method of forming the same |
| US5497936A (en) * | 1993-10-21 | 1996-03-12 | Siemens Aktiengesellschaft | Method and apparatus for soldering a coil winding wire to a terminal pin |
| CN1981967A (en) * | 2005-12-15 | 2007-06-20 | 中国科学院电工研究所 | Superconductive current lead welding method |
| CN101369482A (en) * | 2008-06-24 | 2009-02-18 | 周志林 | Water-cooled transformer and its welding method for line pipe and connection copper bar |
| CN103310967A (en) * | 2013-06-27 | 2013-09-18 | 慈溪市国兴电子有限公司 | Manufacturing technology of transformer for switching power supply |
| CN203366946U (en) * | 2013-08-20 | 2013-12-25 | 淮安柯林斯尼电气有限公司 | Aluminum wire inductor |
| CN104600534A (en) * | 2013-11-03 | 2015-05-06 | 张向增 | High frequency induction welding connecting method for compound configuration high-frequency data wire |
| CN105458434A (en) * | 2015-12-04 | 2016-04-06 | 王伟 | Lead welding technique for packaging semiconductor power device |
| CN106158356A (en) * | 2016-09-29 | 2016-11-23 | 无锡金诺电气有限公司 | Transformator tin-soldering method |
| CN107309522A (en) * | 2017-06-12 | 2017-11-03 | 湖北三江航天险峰电子信息有限公司 | A kind of welding method of microwave components pin joint welding printed board |
| CN111805035A (en) * | 2020-07-17 | 2020-10-23 | 格力电器（合肥）有限公司 | Pin welding packaging method of inductance element and inductance element |
-
2021
- 2021-10-28 CN CN202111260851.6A patent/CN113963945A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0778640A (en) * | 1993-09-10 | 1995-03-20 | Fujitsu Ltd | Contact structure with oxide superconductor and method of forming the same |
| US5497936A (en) * | 1993-10-21 | 1996-03-12 | Siemens Aktiengesellschaft | Method and apparatus for soldering a coil winding wire to a terminal pin |
| CN1981967A (en) * | 2005-12-15 | 2007-06-20 | 中国科学院电工研究所 | Superconductive current lead welding method |
| CN101369482A (en) * | 2008-06-24 | 2009-02-18 | 周志林 | Water-cooled transformer and its welding method for line pipe and connection copper bar |
| CN103310967A (en) * | 2013-06-27 | 2013-09-18 | 慈溪市国兴电子有限公司 | Manufacturing technology of transformer for switching power supply |
| CN203366946U (en) * | 2013-08-20 | 2013-12-25 | 淮安柯林斯尼电气有限公司 | Aluminum wire inductor |
| CN104600534A (en) * | 2013-11-03 | 2015-05-06 | 张向增 | High frequency induction welding connecting method for compound configuration high-frequency data wire |
| CN105458434A (en) * | 2015-12-04 | 2016-04-06 | 王伟 | Lead welding technique for packaging semiconductor power device |
| CN106158356A (en) * | 2016-09-29 | 2016-11-23 | 无锡金诺电气有限公司 | Transformator tin-soldering method |
| CN107309522A (en) * | 2017-06-12 | 2017-11-03 | 湖北三江航天险峰电子信息有限公司 | A kind of welding method of microwave components pin joint welding printed board |
| CN111805035A (en) * | 2020-07-17 | 2020-10-23 | 格力电器（合肥）有限公司 | Pin welding packaging method of inductance element and inductance element |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220121 |