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US 12,374,953 B2Granted
Anti-erosion structure of motor including a ground structure
AssigneeHyundai Mobis Co., Ltd.
InventorsYong Ho Kim, Bit Na Lee
Life of this patent
Estimating the term…
Abstract
An anti-erosion structure of a motor includes a housing configured to accommodate a stator, a rotor disposed inside the stator, and a shaft disposed inside the rotor; a rear cover coupled to a rear side of the housing; and a ground structure configured to ground the shaft. The ground structure includes a ground bearing installed on the shaft, and a conductor bar having one side fixed to the rear cover and another side contacting the ground bearing.
Claims17
An anti-erosion structure of a motor, comprising:
- a housing configured to accommodate a stator, a rotor disposed inside the stator, and a shaft disposed inside the rotor;
- a rear cover coupled to a rear side of the housing;
- and
- a ground structure configured to ground the shaft,
- wherein the ground structure includes a ground bearing installed on the shaft, and a conductor bar having one side fixed to the rear cover and another side contacting the ground bearing,
- wherein the conductor bar includes a fixed part fixed to the rear cover and a protrusion extending from the fixed part and protruding toward the shaft,
- at least a portion of the protrusion is inserted into a hollow space of the ground bearing to contact an outer circumferential surface of an inner ring of the ground bearing, and
- a guide groove recessed inward by a predetermined amount is formed on the outer circumferential surface of the inner ring of the ground bearing so that a portion of the protrusion of the conductor bar contacting the inner ring of the ground bearing is seated.
5 more elements
An anti-erosion structure of a motor, comprising:
- a housing configured to accommodate a stator, a rotor disposed inside the stator, and a shaft disposed inside the rotor;
- a rear cover coupled to a rear side of the housing;
- and
- a ground structure configured to ground the shaft,
- wherein the ground structure includes a ground bearing inserted into a hollow space of the shaft, and a conductor bar having one side fixed to the rear cover and another side contacting the ground bearing,
- a guide groove recessed inward by a predetermined amount is formed on an outer circumferential surface of an inner ring of the ground bearing so that a portion of the conductor bar contacting the inner ring of the ground bearing is seated.
3 more elements
An anti-erosion structure of a motor, comprising:
- a housing configured to accommodate a stator, a rotor disposed inside the stator, and a shaft disposed inside the rotor;
- a rear cover coupled to a rear side of the housing;
- and
- a ground structure configured to ground the shaft,
- wherein the ground structure includes a ground bearing installed outside the shaft, and a conductor bar having one side fixed to the rear cover and another side contacting the ground bearing,
- wherein a guide groove recessed inward by a predetermined amount is formed on an outer circumferential surface of an outer ring of the ground bearing so that a portion of the conductor bar contacting the outer ring of the ground bearing is seated.
3 more elements
Dependencies are inferred from the claim text.