Plastic package stator and bearing end cap waterproof sealing structure and plastic package motor

Abstract

The invention relates to the field of motors, and discloses a plastic package stator and bearing end cap waterproof sealing structure and a plastic package motor. The plastic package stator and bearing end cap waterproof sealing structure comprises a plastic package stator, a bearing end cap and a waterproof sealing ring between the plastic package stator and the bearing end cap, wherein the plastic package stator is provided with an annular clamping flange, the bearing end cap is provided with an annular clamping groove matched with the annular clamping flange in a clamped and inserted mode, the annular clamping flange is provided with an axial end face towards the bearing end cap in the axial direction of the plastic package stator, the annular clamping groove is provided with a bottom groove towards the plastic package stator in the axial direction of the plastic package stator, the waterproof sealing ring is elastically compressed between the axial end face and the bottom groove face, and a positioning hole allowing the waterproof sealing ring to be clamped and positioned is formed in the bottom groove face in a concave mode. The plastic package stator and bearing end cap waterproof sealing structure prevents influences of a needle insertion hole, a detection hole and a detachment notch which probably exist in the radial outer surface of the annular clamping flange on the sealing effect of the waterproof sealing ring, and achieves the aims of improving the waterproof sealing effect between the plastic package stator and the bearing end cap.

Description

technical field

[0001] The invention belongs to the field of motors, in particular to a waterproof sealing structure of a plastic-sealed stator and a bearing end cover and a plastic-sealed motor with the waterproof sealing structure. Background technique

[0002] Plastic-sealed motors generally have two bearing end covers located on both sides of the stator core; in traditional technology, one bearing end cover and the stator core are generally packaged in the plastic-sealed stator, and the other bearing end The cover is covered and fixed on the end of the plastic-sealed stator in an interference fit manner. For ease of description, the bearing end cover located inside the plastic-encapsulated stator is called the inner bearing end cover, and the bearing end cover located outside the plastic-enclosed stator is called the outer bearing end cover. The mating connection between the outer bearing end cover and the plastic-sealed stator is mainly realized through the cooperation...

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