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A plurality of separate electrical power supply lead wires each have an exposed end portion projecting from a surrounding insulation. The end portions are slidably received within corresponding collett-like socket members supported by an insulator plug disposed within a bore formed within a submersi

A plurality of separate electrical power supply lead wires each have an exposed end portion projecting from a surrounding insulation. The end portions are slidably received within corresponding collett-like socket members supported by an insulator plug disposed within a bore formed within a submersible electrical motor housing. A strain relief washer engages the socket members and supports a resilient gland member which has corresponding bores for slidably receiving the insulation on the lead wires. A bushing and tubular nut surround the lead wires and project into the upper end of the bore to provide for compressing the gland member axially within the bore for producing a fluid-tight seal between the insulation on each lead wire and the housing and to press the strain relief washer against the socket members for gripping the lead wires. The socket members project through corresponding holes within a lightning arrestor electrode which defines an annular gap surrounding each socket member, and a corresponding plurality of threaded coupling elements connect the stator lead wires to the socket members and form part of a sub-assembly. The coupling elements are also sealed to the motor housing by compressing a resilient gland member axially within the lower end portion of the bore with another insulator bushing and tubular nut which surround the stator lead wires.

대표청구항 ▼

In a submersible electric motor including a housing enclosing a stator and a rotor having a shaft supported by bearing means, an improved electrical connector assembly for coupling to said motor a plurality of individual power supply lead wires each having an exposed end portion projecting from a co

In a submersible electric motor including a housing enclosing a stator and a rotor having a shaft supported by bearing means, an improved electrical connector assembly for coupling to said motor a plurality of individual power supply lead wires each having an exposed end portion projecting from a corresponding surrounding insulation, said connector assembly comprising means defining a bore within said housing, a corresponding plurality of electrically conducting socket members each having means defining an opening for slidably receiving the exposed end portion of the corresponding said power supply lead wire, insulator means within said bore for supporting said socket members in generally parallel spaced relation, a resilient gland member disposed within said bore and having means defining a corresponding plurality of openings aligned axially with the corresponding said openings within said socket members, each said opening within said gland member being sized for slidably receiving said insulation on the corresponding said power supply lead wire, means on said housing for compressing said gland member in an axial direction after said exposed end portions of said power supply lead wires are inserted into the corresponding said openings within said socket members to produce a fluid-tight seal between said insulation of each said power supply lead wire and said motor housing, each of said socket members including a split upper end portion, a strain relief member positioned adjacent said socket members and having holes for receiving corresponding said end portions of said socket members, means for camming said upper end portions of said socket members into firm gripping relation with said end portions of said power supply lead wires in response to axial pressure exerted on said strain relief washer when said gland member is compressed, and means for electrically connecting each socket member to a corresponding lead wire within said housing.