Process equipment for sealing and curing of liquid fillers for motor armatures after impregnation

Abstract

Process equipment for sealing and curing a liquid filler of a motor armature after impregnation. The motor armature (100) comprises a magnetically permeable member (10) and a coil winding (20) fixed on the magnetically permeable member (10). The motor armature (100) has an inner body cavity. The motor armature (100) is impregnated with a liquid filler, and is axially and horizontally placed in the process equipment. The process equipment comprises: an airflow supply unit for supplying heated and pressurized airflow; and an internal body choking unit (300) provided in the inner body cavity to generate upward pressure airflow to impact the motor armature (100) and choke the drop and dripping of the liquid filler on the motor armature (100). The process equipment can effectively block the liquid filler after an impregnation process to avoid excessive loss of the liquid filler, thereby enhancing the filling fullness of the motor armature, and improving the insulating property and service life of the motor armature.

Description

technical field [0001] The invention relates to the technical field of electric motors, and more specifically, relates to a process equipment for sealing and curing the liquid filling material of the motor armature of the electric motor after the impregnation process. Background technique [0002] Wind energy is one of the cleanest, non-polluting renewable energy sources. Utilization of wind power generation has increasingly become the main form of wind energy utilization, and is highly valued by countries all over the world. A wind turbine is a large-scale power generation device that converts wind energy into electrical energy. [0003] The motor is the core component of the wind turbine, including the rotor and stator. Generally, the stator includes a stator magnetically permeable part and a winding fixed on the stator magnetically permeable part. Taking the stator as an example, such as Figure 1-3 As shown, the motor armature 100 includes a magnetic conductive part 1...

AI Technical Summary

Problems solved by technology

[0009] Therefore, in the process of insulating the motor armature 100 with the traditional insulation treatment process and process equipment, it is impossible to effectively prevent the liquid filler from flowing out of the slot (slot wedge) along the radial direction, and from flowing out of the slot along the axial direction. The direction flows outward from the axial ends of the winding slot, resulting in a large number of gaps in the motor armature 100 due to insufficient filling of the liquid filler, especially the small amount of paint on the surface of the ferromagnetic boundary and a thin paint layer

In the notch part, it is also difficult to form a strict sealing ring on the periphery of the slot wedge, resulting in the formation of a gap between the slot wedge and the notch silicon steel sheet of the magnetic permeable part 10, and moisture and water will naturally enter the slot along the debonding gap to destroy the insulation. Bring safety hazards to the operation of wind turbines

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