Uniform reactor, field intensity of transformer lead and connecting structure for improving mechanical strength
Patent Information
- Application Number
- CN202522039161.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-09-23
AI Technical Summary
[0004]本申请的目的在于提供一种均匀电抗器、变压器引线场强及提高机械强度的连接结构，解决电抗器、变压器引线区域电场集中的问题，同时避免产品线圈本线与外部引线和之间焊接虚焊引起局部过热，增强机械强度，提高电抗器、变压器产品的运行安全
[0008]综上所述，本实用新型具有如下有益效果：该均匀电抗器、变压器引线场强及提高机械强度的连接结构通过在线圈本线与外部引线之间的焊接处套设有能够均匀引线场强、提高焊接部位机械强度的金属套管，引线和线圈本线的焊接部位的尖角、棱角被铜管屏蔽，解决电抗器、变压器引线区域电场集中引起的局放，以及虚焊引线局部过热的问题，同时增强产品线圈外部引线和线圈本身导线之间焊接的机械强度等，提高电抗器、变压器运行的安全性，具有成本低、安全性好，可以增强产品的竞争力。
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Figure CN224874151U_ABST
Abstract
Description
Technical Field
[0001] This application pertains to reactor or transformer products in the field of power transmission and distribution technology, and particularly relates to a uniform reactor, a connection structure for improving the field strength of transformer leads and enhancing mechanical strength. Background Technology
[0002] With the development of society and the economy, the power industry has increasingly higher requirements for the safety of power transmission and consumption. Reactors and transformers are among the main equipment for power transmission and consumption, and play an important role in the safe operation of the power system.
[0003] In power systems, the coil leads in reactors and transformers have the highest voltage and are among the most non-uniform electric field structures, making them prone to partial discharge, which can affect product operation safety. Furthermore, the welded parts of the leads are susceptible to poor soldering, which can easily lead to breakage under short-circuit forces or during transportation, thus compromising product quality and safety. Utility Model Content
[0004] The purpose of this application is to provide a connection structure that uniformizes the electric field strength of reactor and transformer leads and improves mechanical strength, thereby solving the problem of electric field concentration in the lead area of reactor and transformer, while avoiding local overheating caused by poor welding between the coil and external leads, enhancing mechanical strength, and improving the operational safety of reactor and transformer products.
[0005] To achieve the above objectives, this utility model provides a connection structure for uniformizing the field strength of reactor and transformer leads and improving mechanical strength. The structure includes a reactor, a transformer coil, and a coil conductor located at one end of the reactor and transformer coil. The coil conductor is welded to an external lead. A metal sleeve is fitted at the weld between the coil conductor and the external lead to uniformly increase the field strength of the leads and improve the mechanical strength of the welded area. Both ends of the metal sleeve are welded to the coil conductor and the external lead, respectively. A hole is formed in the outer wall of the metal sleeve, extending to the weld.
[0006] Preferably, the coil itself is made of copper or aluminum electromagnetic wire, and the external lead is made of soft copper stranded wire.
[0007] Correspondingly, the metal sleeve is a copper sleeve or an aluminum sleeve.
[0008] In summary, this utility model has the following beneficial effects: The connection structure for uniformizing the electric field strength of reactor and transformer leads and improving mechanical strength, by sleeved with a metal tube at the weld between the coil main wire and the external lead wire, can uniformly increase the electric field strength of the lead wire and improve the mechanical strength of the welded area. The sharp corners and edges of the welded areas of the lead wire and the coil main wire are shielded by the copper tube, solving the problems of partial discharge caused by electric field concentration in the reactor and transformer lead wire areas, as well as local overheating of poorly welded leads. Simultaneously, it enhances the mechanical strength of the weld between the external lead wire of the coil and the coil's own conductor, thereby improving the operational safety of the reactor and transformer. It is low-cost, highly safe, and can enhance the product's competitiveness. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the uniform reactor, transformer lead field strength, and connection structure for improving mechanical strength according to this utility model. Detailed Implementation
[0010] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.
[0011] like Figure 1 The diagram illustrates a connection structure for uniform reactor and transformer lead field strength and improved mechanical strength, comprising a reactor, a transformer coil 1, and a coil conductor 2 disposed at one end of the reactor and transformer coil 1. The coil conductor 2 is welded to an external lead 4. The coil conductor 2 is a copper or aluminum electromagnetic wire, and the external lead 4 is a soft copper stranded wire.
[0012] In addition, a metal sleeve 3 is provided at the welding joint between the coil main wire 2 and the external lead wire 4 of the reactor and transformer coil 1, which can uniformly increase the field strength of the lead wire and improve the mechanical strength of the welding joint. The metal sleeve 3 is a hollow cylindrical structure with a smooth and flat surface and rounded edges. It is made of copper or aluminum tubes and is made of red copper, brass and various electrolytic aluminum.
[0013] The two ends 6 of the metal sleeve 3 are respectively welded to the coil main wire 2 and the external lead wire 4. A hole 5 is opened in the middle of the outer wall of the metal sleeve 3, and the hole 5 extends to the welding point.
[0014] This invention features a metal sleeve 3 fitted at the weld joint between the coil main wire 2 and the external lead wire 4. This ensures uniform electric field strength at the weld joint between the external lead wire 4 and the coil main wire 2, and increases mechanical strength. Sharp corners and edges at the weld joint between the external lead wire 4 and the coil main wire 2 are shielded by the copper sleeve. A hole 5 is opened in the middle of the outer wall of the metal sleeve 3, allowing the user to observe the proper alignment of the weld joint and the solder inlet in the middle of the weld. The two ends of the metal sleeve 3 are welded to the coil main wire 2 and the external lead wire 4 respectively, ensuring a sufficient electrical connection.
[0015] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, principle and application direction of this application should be covered within the scope of protection of this application.
Claims
1. A connection structure for uniform reactor and transformer lead field strength and improved mechanical strength, comprising a reactor, a transformer coil, and a coil conductor disposed at one end of the reactor and transformer coil, wherein the coil conductor is welded to external leads, characterized in that: The weld joint between the coil main wire and the external lead wire of the reactor and transformer coil is fitted with a metal sleeve that can uniformly increase the field strength of the lead wire and improve the mechanical strength of the weld joint. The two ends of the metal sleeve are welded to the coil main wire and the external lead wire respectively. The outer wall of the metal sleeve has a hole that extends to the weld joint.
2. The uniform reactor, transformer lead field strength, and connection structure for improving mechanical strength according to claim 1, characterized in that: The coil itself is made of copper or aluminum electromagnetic wire, and the external lead is made of soft copper stranded wire.
3. The uniform reactor, transformer lead field strength, and connection structure for improving mechanical strength according to claim 2, characterized in that: The metal sleeve is a copper sleeve or an aluminum sleeve.