Emerson Electric Company

Kevin M May

S Duke Snider

Sohail Ahmed

Daniel R Messner

John E King

A motor with a hollow housing with an open mouth defined by a side wall, and a cover for its mouth, an electrical motor circuit and power conductors electrically connected to the circuit at one end and adapted to be connected to a source of power at another end, has, when it is assembled, a current supply connecter receptacle. The housing has integral with it, a housing receptacle part with conductor-receiving seats in which the power conductors are seated. The cover has a cover receptacle part integral with the cover. The cover is latched into position, closing the housing mouth and completing the receptacle, by at least one deflectable finger, one end of which is integral with one of the cover and housing and a free end of which is provided with a latching lip, and a complementary ledge integral with the other of the housing and cover, the ledge being spaced and shaped to receive and be engaged by the lip. Provision is made for permitting the lip to be displaced from the ledge to free the cover. Preferably, two fingers, both integral with the cover, are provided, ledges being formed on the housing receptacle part.

Integral connector and motor housing

In a refrigeration system in which coils are mounted in a coil passage, a fan system is provided by which air is caused to pass over the coils. The fan system includes a housing communicating with a coil passage. The housing has an intake and an outlet each with a mouth, the mouths of the intake and outlet being oriented substantially 180.degree. from on another. A centrifugal scroll caged blower is mounted in the housing and an electric motor is connected to rotate the blower. Baffles are provided within the housing for directing air in separate paths through the housing intake to an inlet of the blower and from the blower through the housing outlet, the flow of the air through the housing mouths lying in substantially parallel planes.

Refrigeration centrifugal blower system

The present invention provides a centrifugal blower wherein the noise at the cutoff has been substantially reduced by providing a vortex in the air flow near the cutoff to redirect the air flow. A fin projects downwardly into the space created by the exhaust outlet to redirect the air flow away from the cutoff and create a vortex to quiet the air flow.

Low noise centrifugal blower

An electric motor has stator coils extending longitudinally past an end of its rotor so that the end turns and at least a portion of the inner side of the stator coils are exposed. A fan is disposed inside the motor shell between a first air passageway and the stator coils. The fan is secured to and driven by the rotor shaft to cause a flow of cooling air to pass over the stator coils when the motor is in operation. The fan has a number of vanes extending outwardly from a hub to a circumferential ring, which ring defines a central opening of the fan. The central opening extends past the vanes from the front to the rear of the fan so that the rear of the fan is relatively open. The inner surface of the ring is smoothly curved outwardly and rearwardly from the front of the central opening to direct air which enters the central opening toward the stator coils. The vanes are disposed adjacent the exposed portions of the stator coils to cause turbulent air flow along the exposed portions.

Growing community of inventors

St. Louis County, MO, United States of America

Kevin M May