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US 8,616,315 B2Granted
Electric motor and electric vehicle having the same
AssigneeLG Electronics Inc.
InventorsYunho Kim, Jaeho Kim, Kwangwook Chun
Life of this patent
Estimating the term…
Abstract
An electric motor includes a case, a stator disposed in an interior of the case, a rotor including a shaft disposed to be rotatable with respect to the stator, and an oil circulator to contact with oil that is accommodated or stored at the interior of the case, the oil circulator may disperse at least a portion of the oil when the rotor rotates with respect to the stator. Accordingly, outputs can be improved by restraining an increase in the temperature of components.
Claims20
An electric vehicle comprising:
- a body;
- a plurality of wheels provided at the body;
- and
- an electromotor to drive at least one wheel, the electromotor including,
- a case,
- a stator disposed in an interior of the case,
- a rotor including a shaft disposed to be rotatable with respect to the stator,
- an oil circulator to contact with oil that is accommodated or stored at the interior of the case, wherein the oil circulator disperses at least a portion of the oil when the rotor rotates with respect to the stator;
- a cooling fluid circulation circuit for circulating cooling fluid by way of the case;
- one or more flow passages at the case to flow cooling fluid therethrough;
- at least one inlet at the case in fluid communication with the one or more flow passages;
- and
- at least one outlet at the case in fluid communication with the one or more flow passages,
- wherein the cooling fluid circulation circuit is coupled to the at least one of the inlet and the at least one of the outlet to form a cooling fluid flow path.
11 more elements
A motor for use in an electric vehicle comprising:
- a case;
- a stator disposed in an interior of the case;
- a rotor including a shaft disposed to be rotatable with respect to the stator;
- an oil circulator to contact with oil that is accommodated or stored at the interior of the case, wherein the oil circulator disperses at least a portion of the oil when the rotor rotates with respect to the stator;
- a cooling fluid circulation circuit for circulating cooling fluid by way of the case;
- one or more flow passages at the case to flow cooling fluid therethrough;
- at least one inlet at the case in fluid communication with the one or more flow passages;
- and
- at least one outlet the case in fluid communication with the one or more flow passages,
- wherein the cooling fluid circulation circuit is coupled to the at least one of the inlet and the at least one of the outlet to form a cooling fluid flow path.
7 more elements
An electric vehicle comprising:
- a body;
- a plurality of wheels provided at the body;
- and
- an electromotor to drive at least one wheel, the electromotor including,
- a case,
- a stator disposed in an interior of the case,
- a rotor including a shaft disposed to be rotatable with respect to the stator, and
- an oil circulator to contact with oil that is accommodated or stored at the interior of the case, wherein the oil circulator disperses at least a portion of the oil when the rotor rotates with respect to the stator,
- wherein the rotor includes a rotor core and one or more neodymium magnets coupled to the rotor core, wherein a characteristic of the one or more neodymium magnets is based on a temperature of the motor when the motor is operating.
6 more elements
A motor for use in an electric vehicle comprising:
- a case;
- a stator disposed in an interior of the case;
- a rotor including a shaft disposed to be rotatable with respect to the stator;
- and
- an oil circulator to contact with oil that is accommodated or stored at the interior of the case, wherein the oil circulator disperses at least a portion of the oil when the rotor rotates with respect to the stator,
- wherein the rotor includes a rotor core and one or more neodymium magnets coupled to the rotor core, wherein a characteristic of the one or more neodymium magnets is based on a temperature of the motor when the motor is operating.
3 more elements
Dependencies are inferred from the claim text.