Patent ID: 11909277
Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  F  Y | IPC B  H

Claim 8:
9. The motor of claim 8, further comprising:
a transmission piece that is a second conductive structure and comprising a transmission pillar, wherein the transmission pillar comprises:
a first end extending into the axial cavity through the first opening; and
a second end located opposite to the first end and coupled to the housing,
wherein a first central axis of the transmission pillar coincides with a second central axis of the axial cavity,
wherein a gap is comprised between the transmission pillar and an inner wall of the axial cavity,

wherein the grounding ring and the first sealing piece are accommodated in the axial cavity and sleeved on the first end, wherein a first inner ring surface of the grounding ring is in contact with the transmission pillar, wherein a first outer ring surface of the grounding ring is in contact with an inner wall surface of the axial cavity, wherein a second inner ring surface of the first sealing piece is in contact with the transmission pillar, wherein a second outer ring surface of the first sealing piece is in contact with the inner wall surface such that the first sealing piece seals the gap, wherein the first sealing piece and the second sealing piece are configured to seal a second part of the axial cavity between the first sealing piece and the second sealing piece to obtain the sealing space, and wherein the grounding ring is located on a side of the first sealing piece opposite to the second end.