Electric motor with ice out protection
First Claim
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1. An electric motor comprising:
- a stator including a stator core, a winding on the stator core;
a rotor including a shaft received in the stator core for rotation of the rotor relative to the stator about the longitudinal axis of the shaft;
a housing connected together with the stator and rotor to form an assembled motor, the housing being adapted to support the stator and rotor;
a printed circuit board for controlling operation of the motor, the printed circuit board having a power contact mounted thereon for receiving electrical power for the winding;
the housing being formed with a plug receptacle for receiving a plug from an external electrical power source for forming a connection between the power source and the power contact, the circuit board defining a bottom of the receptacle, the power contact being received in the plug upon connection of the plug to the power contact, the receptacle including a plug locator locating the plug relative to the bottom so that the power contact is received only partially into the plug upon connection to the plug and so that the plug is spaced from the printed circuit board at the bottom of the receptacle.
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Abstract
An electric motor having a snap-together construction without the use of separate fasteners. The construction of the motor removes additive tolerances for a more accurate assembly. The motor is capable of programming and testing after final assembly and can be non-destructively disassembled for repair or modification. The motor is constructed to inhibit the ready entry of water into the motor housing and to limit the effect of any water which manages to enter the housing.
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Citations
15 Claims
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1. An electric motor comprising:
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a stator including a stator core, a winding on the stator core; a rotor including a shaft received in the stator core for rotation of the rotor relative to the stator about the longitudinal axis of the shaft; a housing connected together with the stator and rotor to form an assembled motor, the housing being adapted to support the stator and rotor; a printed circuit board for controlling operation of the motor, the printed circuit board having a power contact mounted thereon for receiving electrical power for the winding; the housing being formed with a plug receptacle for receiving a plug from an external electrical power source for forming a connection between the power source and the power contact, the circuit board defining a bottom of the receptacle, the power contact being received in the plug upon connection of the plug to the power contact, the receptacle including a plug locator locating the plug relative to the bottom so that the power contact is received only partially into the plug upon connection to the plug and so that the plug is spaced from the printed circuit board at the bottom of the receptacle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification