Patent ID: 8643231
Filing Date: 2014-02-04
Classification: H02K,Y10T

Abstract:
1. A water resistant electric motor comprising: a housing including a main body and a lid, the main body including a rear endbell, a stator compartment with stator windings, and a first ball bearing, the lid including a second ball bearing and a through hole; a pin coupled to wiring of the stator windings; a rotor including a shaft with a first end positioned in the first ball bearing and a second end positioned in the second ball bearing; a coating overmolding the stator compartment, the stator windings, and the rotor, the coating at least partially covering the wiring, wherein the pin extends beyond the coating; a printed circuit board assembly encapsulated with a sealant, the printed circuit board assembly positioned adjacent to the rotor and the stator windings so that the coating merges with the sealant, wherein the sealant includes a first sealant passage and a second sealant passage formed in the sealant on opposite sides of the printed circuit board assembly, and the pin extends through the first sealant passage to reach the printed circuit board assembly; a removable plug extending completely through the through hole of the lid to make the through hole substantially waterproof, wherein the removable plug seals the second sealant passage; and a gasket between the lid and the main body in order to seal the stator compartment.