Motor for vehicle transmission pump having a sensor and a magnet separated by a non-magnetic barrier
AssigneeGHSP, Inc.
InventorsRyan Rosinski, Jian Peng He
Life of this patent
Estimating the term…
Abstract
An electric motor is provided that includes: a stator assembly; a rotor assembly for rotating inside the stator assembly, the rotor assembly including a shaft; a magnet mounted on the shaft of the rotor assembly; a printed circuit board; a magnetic sensor mounted on the printed circuit board; and an overmold assembly having a membrane disposed between the magnet and the magnetic sensor such that the magnetic sensor can sense the angular position of the magnet through the membrane.
Claims20
An electric motor configured for mounting within a hole formed in a vehicle transmission housing to turn an impeller of a pump internal to the transmission housing, the electric motor comprising:
- a stator assembly;
- a rotor assembly for rotating inside the stator assembly, the rotor assembly including a shaft;
- a magnet mounted on the shaft of the rotor assembly;
- a printed circuit board;
- a magnetic sensor mounted on the printed circuit board;
- an overmold assembly having a membrane disposed between the magnet and the magnetic sensor such that the magnetic sensor can sense the angular position of the magnet through the membrane;
- and
- a gasket provided on the overmold assembly to seal the motor within the hole of the transmission with which the motor is used.
An electric motor configured for mounting within a hole formed in a vehicle transmission housing to turn an impeller of a pump internal to the transmission housing, the electric motor comprising:
- an overmold assembly having a membrane at one end and an opening at an opposite end, the opening extending through the overmold assembly up to the membrane;
- a stator assembly disposed in the opening of the overmold assembly, the stator assembly including a stator opening;
- a rotor assembly for rotating inside the opening of the stator assembly, the rotor assembly including a shaft;
- a magnet mounted on the shaft of the rotor assembly;
- a cover mounted to the overmold assembly to provide a sealed chamber between the cap and the membrane;
- a printed circuit board mounted in the sealed chamber;
- a magnetic sensor mounted on the printed circuit board in a position juxtaposed to the magnet with the membrane in between such that the magnetic sensor can sense the angular position of the magnet through the membrane;
- and
- a gasket provided on the overmold assembly to seal the motor within the hole of the transmission with which the motor is used.
An electric motor configured for mounting within a hole formed in a vehicle transmission housing to turn an impeller of a pump internal to the transmission housing, the electric motor comprising:
- an overmold assembly having a membrane at one end and an opening at an opposite end, the opening extending through the overmold assembly up to the membrane, wherein the overmold assembly has a groove formed in a top raised edge surrounding the membrane;
- a seal positioned in the groove to seal the cover to the overmold assembly;
- a cover mounted to the overmold assembly to provide a sealed chamber between the cap and the membrane;
- a printed circuit board mounted in the sealed chamber;
- a stator assembly disposed in the opening of the overmold assembly and electrically coupled to the printed circuit board through sealed apertures formed through the membrane, the stator assembly including a stator opening;
- a rotor assembly for rotating inside the opening of the stator assembly, the rotor assembly including a shaft;
- a magnet mounted on the shaft of the rotor assembly;
- a magnetic sensor mounted on the printed circuit board in a position juxtaposed to the magnet with the membrane in between such that the magnetic sensor can sense the angular position of the magnet through the membrane;
- and
- a gasket provided on the overmold assembly to seal the motor within the hole of the transmission with which the motor is used.
Dependencies are inferred from the claim text.