Motor operating module
AssigneeHyundai Mobis Co., Ltd.
InventorsNam Seok Kim, Sang Han Lee
Life of this patent
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Abstract
A motor operating module includes a motor including a rotor and a stator, a gear unit provided on one side of the motor, and being configured to receive torque of the rotor and to transmit the torque to outside, and a housing configured to accommodate the motor and the gear unit in an inner space including a front space formed on a first side, a rear space formed on a second side opposite to the first side, and rear-facing connection flow paths extending from the front space toward the rear space to provide a path for a cooling fluid to flow, such that a motor may be cooled by using a churning effect of an oil caused by rotation of a gear without a separate operating device such as a pump.
Claims14
A motor operating module comprising:
- a motor comprising a rotor and a stator;
- a gear unit provided on one side of the motor, and being configured to receive torque of the rotor and to transmit the torque to outside;
- and
- a housing configured to accommodate the motor and the gear unit in an inner space,
- wherein the inner space of the housing comprises:
- a front space formed on a first side of the motor;
- a rear space formed on a second side of the motor opposite to the first side;
- rear-facing connection flow paths extending from the front space toward the rear space and providing a path for a cooling fluid to flow;
- and
- the cooling fluid is churned by the rotation of the gear unit to flow from a lower region of the housing into the rear space via the rear-facing connection flow paths,
- wherein the gear unit comprises:
- an input gear coupled to the motor;
- an output gear configured to receive the torque of the rotor from the input gear;
- and
- a transmission gear engaging with the input gear and the output gear and being configured to transmit the torque of the rotor from the input gear to the output gear,
- wherein the cooling fluid is churned by the rotation of the output gear and flows into the rear space via the rear-facing connection flow paths, and
- wherein each of the rear-facing connection flow paths comprises:
- a first rear-facing connection flow path formed in an outer region of the input gear that faces an outer surface of the housing, and
- a second rear-facing connection flow path formed between the output gear and the transmission gear.
Dependencies are inferred from the claim text.