Encapsulated inductor and assembly process thereof

Abstract

The invention discloses an encapsulated inductor and an assembly process thereof. The encapsulated inductor comprises a framework and a protective cover, wherein the surface of the framework is wound with a copper wire coil; the framework is arranged in the protective cover, and the framework and the protective cover are concentric; the protective cover is provided with a wire outlet used for extending a copper wire of the copper wire coil; both ends of the framework in the protective cover are provided with a bus bar respectively, and both ends of the copper wire coil are clamped on the bus bars respectively; both ends of the protective cover are provided with an end cover plate respectively; pressing plates are arranged between the end cover plates and the bus bars and are connected with the bus bars; the protective cover is provided with insulating pins; and cured epoxy resin layers are arranged at contact positions of the protective cover and the end cover plates, at contact positions of the insulating pins and the protective cover, between the framework and the end cover plates, and between the outer surface of the framework and the inner wall of the protective cover. The assembly process of the encapsulated inductor comprises three steps. The encapsulated inductor can meet the operational requirements on high voltage and high current / instantaneous high current impact, and is low in manufacturing cost, safe and reliable.

Description

technical field [0001] The invention relates to a high-voltage and high-current inductor, in particular to a potting inductor and an assembly process thereof. Background technique [0002] With the development of science and technology, the application of inductors in circuits is very common, and their types and shapes tend to be diversified, with higher precision, more beautiful appearance, and safer and more reliable; however, many inductors can work under high voltage conditions, but cannot Work normally under the impact of high current and instantaneous high current; under the impact of high current or instantaneous high current, the inductance may even explode; for example, the inductance is 20-30kV, the average current is hundreds of amperes, and the instantaneous current is 2,000 amperes Work in the above high voltage circuit. At present, in the application of inductors, the diameter of the inductor winding is usually increased to meet the demand of large current or ...

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology, the application of inductors in circuits is very common, and their types and shapes tend to be diversified, with higher precision, more beautiful appearance, and safer and more reliable; however, many inductors can work under high voltage conditions, but cannot Work normally under the impact of high current and instantaneous high current; under the impact of high current or instantaneous high current, the inductance may even explode; for example, the inductance is 20-30kV, the average current is hundreds of amperes, and the instantaneous current is 2,000 amperes work in high voltage circuits above

At present, in the application of inductors, the diameter of the inductor winding is usually increased to meet the demand of large current or instantaneous high current impact; but this method will bring two problems. First, increasing the diameter of the inductor winding will inevitably It will increase the difficulty of making the coil, put forward high requirements on the structural strength of the accessories on the inductor, and increase the difficulty of manufacturing the inductor; No change, whether it is its processing and manufacturing, or the cost of materials will greatly increase. If this kind of inductor is produced in large quantities, the manufacturing cost of the inductor will be greatly increased.

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