Engine cooling system and motor therefore
First Claim
1. An engine cooling system, comprising a fan unit, cooling pipes, cooling channels in the engine and a coolant tank, the coolant tank, the cooling pipes and the cooling channels in the engine being connected together and forming a cooling circuit, the fan unit being used to cool the cooling pipes and coolant therein, the fan unit comprising a motor and fan blades driven by the motor;
- wherein the motor comprises a stator and a rotor rotatable mounted confronting the stator;
the rotor comprising a shaft, a commutator fitted to the shaft, a rotor core fitted to the shaft adjacent to the commutator, windings wound about teeth of the rotor core and electrically connected to segments of the commutator;
the windings being formed from aluminum cored wire that has an electrical insulation film around its peripheral surface, each of the segments comprising a hook formed at one end thereof, a protective film encapsulating the hook and lead wire of the windings after the lead wire and the hook are soldered together for preventing the soldered hook and lead wire from being corroded by oxygen and/or moisture.
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Accused Products
Abstract
An engine cooling system, comprising a fan unit, cooling pipes and a coolant tank, the coolant tank, the cooling pipes and cooling channels of the engine being connected together and forming a cooling cycle, the fan unit being used to cool the cooling pipes and the coolant therein; wherein the fan unit comprises a motor and fan blades driven by the motor, the motor comprising a stator and a rotor rotatable mounted confronting the stator; the rotor comprising a shaft, a commutator fitted to the shaft, a rotor core fitted to the shaft adjacent to the commutator, windings wound about teeth of the rotor core and electrically connected to segments of the commutator; the windings being wound by aluminum cored wire that has a electrical insulation film around its peripheral surface.
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Citations
12 Claims
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1. An engine cooling system, comprising a fan unit, cooling pipes, cooling channels in the engine and a coolant tank, the coolant tank, the cooling pipes and the cooling channels in the engine being connected together and forming a cooling circuit, the fan unit being used to cool the cooling pipes and coolant therein, the fan unit comprising a motor and fan blades driven by the motor;
- wherein the motor comprises a stator and a rotor rotatable mounted confronting the stator;
the rotor comprising a shaft, a commutator fitted to the shaft, a rotor core fitted to the shaft adjacent to the commutator, windings wound about teeth of the rotor core and electrically connected to segments of the commutator;
the windings being formed from aluminum cored wire that has an electrical insulation film around its peripheral surface, each of the segments comprising a hook formed at one end thereof, a protective film encapsulating the hook and lead wire of the windings after the lead wire and the hook are soldered together for preventing the soldered hook and lead wire from being corroded by oxygen and/or moisture. - View Dependent Claims (2, 3, 4, 5)
- wherein the motor comprises a stator and a rotor rotatable mounted confronting the stator;
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6. A cooling fan used in an engine cooling system, the cooling fan comprising a motor, fan blades driven by the motor to cool an engine, wherein the motor comprises a stator and a rotor rotatable mounted confronting the stator;
- the rotor comprising a shaft, a commutator fitted to the shaft, a rotor core fitted to the shaft adjacent to the commutator, windings wound about teeth of the rotor core and electrically connected to segments of the commutator;
the windings being formed from aluminum cored wire that has an electrical insulation film around its peripheral surface, wherein each of the hooks at a position adjoining a corresponding segment is concave inwardly along a radial direction of the commutator relative to a contacting surface of the corresponding segment to thereby form an increased space for accommodating lead wire of the windings. - View Dependent Claims (7, 8, 9, 10)
- the rotor comprising a shaft, a commutator fitted to the shaft, a rotor core fitted to the shaft adjacent to the commutator, windings wound about teeth of the rotor core and electrically connected to segments of the commutator;
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11. A motor used in an engine cooling system comprising fan blades driven by the motor to cool an engine, wherein the motor comprises a stator and a rotor rotatably mounted confronting the stator;
- the rotor comprising a shaft, a commutator fitted to the shaft, a rotor core fitted to the shaft adjacent to the commutator, windings wound about teeth of the rotor core and electrically connected to segments of the commutator, the windings being formed from copper clad aluminum wire, wherein each of the segments comprises a hook formed at one end thereof, each of the hooks at a position adjoining the corresponding segment is concave inwardly along a radial direction of the commutator relative to a contacting surface of the corresponding segment to thereby form an increased space for accommodating a lead wire of the windings, protective films respectively encapsulating the lead wires and hooks after the lead wires and hooks are soldered together for preventing the soldered hooks and lead wires of the windings from being corroded by oxygen and/or moisture.
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12. A motor used in an engine cooling system comprising a fan driven by the motor to cool an engine, wherein the motor comprises a stator and a rotor rotatably mounted confronting the stator;
- the rotor comprising a shaft, a commutator fitted to the shaft, a rotor core fitted to the shaft adjacent to the commutator, windings wound about teeth of the rotor core and electrically connected to segments of the commutator, the windings being formed from copper clad aluminum wire, wherein each of the segments comprises a hook formed at one end thereof, each of the hooks having a portion with a reduced thickness forming a concave providing an increased space for accommodating a lead wire of the windings.
Specification