Motor

The motor design with an annular stator cover and resin-filled radial gap addresses resin leakage issues by containing resin within the motor structure, enhancing manufacturing precision.

JP2025180748APending Publication Date: 2025-12-11NIDEC MOTOR CORP

Patent Information

Application Number
JP2024088287
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-30
Publication Date
2025-12-11

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  • Figure 2025180748000001_ABST
    Figure 2025180748000001_ABST
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Abstract

To provide a motor having a structure capable of suppressing leakage of resin during molding of a resin part.SOLUTION: In a motor 100, a stator includes a resin-made stator cover 58 that closes a portion between an end part on one side in an axial direction of an inner housing 51 and an end part on one side in the axial direction of an outer housing 52 in a radial direction, and a resin part 80 having a portion filled between the inner housing and the outer housing in the radial direction. The stator core includes a first core part and a second core part surrounding the end part of the first core part on one side in the axial direction. The inner peripheral surface of the second core part contacts the outer peripheral surface of the first core part. The stator cover includes an annular inner annular wall protruding from an inner peripheral edge of a cover main body to the other side in the axial direction, and an annular outer annular wall protruding from an outer peripheral edge of the cover main body to the other side in the axial direction. An outer peripheral surface of the inner annular wall contacts an inner contact surface of the inner housing. An inner peripheral surface of the outer annular wall contacts the outer contact surface of the outer housing.SELECTED DRAWING: Figure 4
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Citation Information

Patent Citations

  • Fixing structure of single-stator double-rotor axial flux motor stator

    CN218301191U

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