US 4,961,018 A · Enclosed pump motor and wiring thereof

Abstract

An enclosed pump motor includes an aluminum housing made by an impact extrusion process. The housing is cylindrical having an integrally-formed closed end with integral fastener bosses for attaching a pump thereto and an integrally-formed thickened cylindrical portion defining a shaft bore for receiving the motor shaft. At the other end, the cylindrical housing is open for receiving the motor. A motor cover is attached to the motor receiving end of the housing by crimping or bending a part of the housing into indents formed in the housing. The motor cover includes a threaded bore adapted to receive a threaded grommet wherein three connector pins are imbedded. The connector pins are connected to electrical power carrying conductors and/or switch conductors leading to a fluid level sensor switch. The conductor-to-pin connections are imbedded within the grommet and are hermetically sealed. The connector pins extend into the housing and are electrically connected to corresponding connectors leading to the electric motor.

Claims18

Dependent claims

An enclosed pump motor comprising:

a cylindrical motor housing having a motor receiving end and a closed motor shaft end, a motor shaft hole formed in said closed motor shaft end;
a motor having a motor shaft received in said housing, said shaft extending through said motor shaft hole;
a motor cover on said motor receiving end of said housing, said cover having a threaded bore therethrough communicating with the interior of said housing;
a threaded grommet threadingly engaging and received in said threaded bore;
and,
first and second electrical conductors, at one end, adapted to be connected to an electrical power source and, at the other end, extending through said grommet and connected to said motor, whereby electrical power is provided to said motor.

3 more elements

An enclosed pump motor comprising:

a cylindrical motor housing having a motor receiving end and a closed motor shaft end, a motor shaft hole formed in said closed motor shaft end;
a motor having a motor shaft received in said housing, said shaft extending through said motor shaft hole;
a motor cover on said motor receiving end of said motor housing;
first and second electrical power conductors, at one end adapted to be connected to an electrical power source and, at the other end, received in said motor cover;
a fluid level sensor switch;
first and second electrical switch conductors at one end connected to said switch for selective electrical contact therebetween and, at the other end, received in said motor cover;
said first switch conductor connected to said first power conductor in said motor cover;
and,
said second switch conductor and said second power conductor extending out of said motor cover into said housing and being connected to said motor, whereby said motor is selectively electrically energized.

6 more elements

Dependencies are inferred from the claim text.

Enclosed pump motor and wiring thereof

Life of this patent

Enclosed pump motor and wiring thereof

Life of this patent

Abstract

Claims18