Electrical connector for submersible pump tandem motors

Claim 2

In an electrical submersible well pump having tandem upper and lower motors and an electrical connector for interconnecting the motors, the connector having a female body secured to one of the motors and having a longitudinal axis and at least one hole extending therethrough and a base parallel with the longitudinal axis, the connector having a male body secured to the other of the motors that inserts sealingly and coaxially within the female body and having at least one hole extending therethrough parallel with the longitudinal axis, the improvement comprising in combination: at least one female insulator, each secured in one of the holes in one of the bodies, each of the female insulators having an axial passage therethrough which has a receptacle; a set of threads integrally formed in the passage in each of the female insulators; at least one metal connection sleeve, each having one end joined to an electrical wire which extends from one of the motors through one of the holes in one of the bodies, each sleeve having an exterior with a set of threads integrally formed thereon which engage the threads in the passage in one of the female insulators; at least one male insulator, each secured in one of the holes in the other of the bodies, each of the male insulators inserting into one of the receptacles of one of the female insulators, each male insulator having an axial passage therethrough; a set of threads integrally formed in the passage in each of the male insulators; and at least one metal connection pin, each having one end joined to an electrical wire which extends from the other of the motors through one of the holes in said other of the bodies, each pin having an exterior having a set of threads integrally formed thereon which engage the threads in the passage in one of the male insulators, each pin inserting into one of the connection sleeves when the bodies are inserted together.

Claim 3

The electrical connector according to claim 1 further comprising means cooperating with each of the female insulators and connection sleeves and each of the water that may migrate into contact with the interior of the electrical connector to flow downward past each of the connection sleeves and connection pins and through each of the holes and around each of the electrical wires, and for allowing air venting during filling of oil in the motors, allowing air to be displaced upward through each of the holes around each of the electrical wires.

Claim 4

The electrical connector according to claim 1 further comprising an axially extending channel extending through a selected one of the sets of the threads of the female insulators and connection sleeves, fluid communicating the receptacle of each of the female insulators with one of the holes in said one of the bodies, and an axially extending channel extending through a selected one of the sets of the threads of the male insulators and connection pins, fluid communicating the axial passage of each of the male insulators with one of the holes in said other of the bodies, for allowing any water that may migrate into contact with the interior of the electrical connector to flow downward past the electrical connector from the upper motor to the lower motor, and for allowing air venting from the lower motor to the upper motor during filling of oil in the motors.

Claim 5

The electrical connector according to claim 1 further comprising an axially extending channel connection pins, fluid communicating the axial passage in each of the male insulators with each of the holes in said other of the bodies, and an axially extending channel extending through the set of threads of each of the connection sleeves, fluid communicating the receptacle in each of the female insulators with one of water that may migrate into contact with the interior of the electrical connector to flow downward past the electrical connector from the upper motor to the lower motor, and for allowing air venting from the lower motor to the upper motor during filling of oil in the motors.

Claim 6

In an electrical submersible well pump having tandem upper and lower motors, an electrical connector for interconnecting the motors, comprising in combination: a female body secured to one of the motors and having a longitudinal axis, a cylindrical bore, a central base encircled by the bore and being perpendicular to the longitudinal axis, and at least one hole extending through the base parallel with the longitudinal axis; a male body secured to the other of the motors and having a longitudinal axis, a cylindrical wall that inserts within the bore of the female body, a central base encircled by the wall and being perpendicular to the longitudinal axis of the male body, and at least one hole extending through the base parallel with the longitudinal axis; seal means for sealing the cylindrical wall to the bore; fastener means for securing the bodies together with the wall sealingly located inside the bore; at least one female insulator, each secured in one of the holes in one of the bodies, with an extension portion protruding past the base of the body in which the insulator is secured, each of the female insulators having an axial passage therethrough which has a receptacle in the extension portion and a reduced diameter portion joining the receptacle; a set of threads integrally formed in the reduced diameter portion of the passage in each of the female insulators; at least one metal connection sleeve, each having one end joined to an electrical wire extending from said one of the motors through one of the holes in said one of the bodies, each sleeve having an exterior with a set of threads integrally formed thereon which engage the threads in the reduced diameter portion of the passage in one of the female insulators; at least one male insulator, each secured in one of the holes in the other of the bodies, each male insulator having a mandrel protruding past the base of the body in which the male insulator is secured, each of the mandrels inserting into one of the receptacles of one of the female insulators, each male insulator having an axial passage therethrough; a set of threads integrally formed in the passage in each of the male insulators; at least one metal connection pin, each having one end joined to an electrical wire extending from said other of the motors through one of the holes in said other of the bodies, each pin having an exterior having a set of threads integrally formed thereon which engage the threads in the passage in one of the male insulators, each pin inserting into one of the connection sleeves when the bodies are secured together by the fastener means; and flowby means cooperating with each of the female insulators and connection sleeves and each of the male insulators and connection pins, for allowing any water that may migrate into contact with the interior of the electrical connector to flow downward from the upper motor through the holes in the bodies to the lower motor past each of the connection sleeves and connection pins, and for allowing air venting during filling of oil in the motors from the lower motor through the holes in the bodies to the upper motor.

Claim 7

In an electrical submersible well pump having tandem upper and lower motors, an electrical connector for interconnecting the motors, comprising in combination: a female body secured to one of the motors and having a longitudinal axis, a cylindrical bore, a central base encircled by the bore and being perpendicular to the longitudinal axis, and at least one hole extending through the base parallel with the longitudinal axis; a male body secured to the other of the motors and having a longitudinal axis, a cylindrical wall that inserts within the bore of the female body, a central base encircled by the wall and being perpendicular to the longitudinal axis of the male body, and at least one hole extending through the base parallel with the longitudinal axis; seal means for sealing the cylindrical wall to the bore; fastener means for securing the bodies together with the wall sealingly located inside the bore; at least one female insulator, each secured in one of the holes in one of the bodies, with an extension portion protruding past the base of the body in which the insulator is secured, each of the female insulators having an axial passage therethrough which has a receptacle in the extension portion and a reduced diameter portion joining the receptacle; a set of threads integrally formed in the reduced diameter portion of the passage in each of the female insulators; at least one metal connection sleeve, each having one end joined to an electrical wire extending from said one of the motors through one of the holes in said one of the bodies, each sleeve having an exterior with a set of threads integrally formed thereon which engage the threads in the reduced diameter portion of the passage in one of the female insulators; at least one male insulator, each secured in one of the holes in the other of the bodies, each male insulator having a mandrel protruding past the base of the body in which the male insulator is secured, each of the mandrels inserting into one of the receptacles of one of the female insulators, each male insulator having an axial passage therethrough; a set of threads integrally formed in the passage in each of the male insulators; at least one metal connection pin, each having one end joined to an electrical wire extending from said other of the motors through one of the holes in said other of the bodies, each pin having an exterior having a set of threads integrally formed thereon which engage the threads in the passage in one of the male insulators, each pin inserting into one of the connection sleeves when the bodies are secured together by the fastener means; and flowby means cooperating with each of the female insulators and connection sleeves and each of the male insulators and connection pins, for allowing any water that may migrate into contact with the interior of the electrical connector to flow downward from the upper motor through the holes in the bodies to the lower motor past each of the connection sleeves and connection pins, and for allowing air venting during filling of oil in the motors from the lower motor through the holes in the bodies to the upper motor.

Claim 8

The electrical connector according to claim 5 wherein the flowby means comprises an axially extending channel extending through a selected one of the sets of the threads of the female insulators and connection sleeves from the one of the holes in said one of the bodies to the receptacle in each of the female insulators, and an axially extending channel extending through a selected one of the sets of the threads of the male insulators and connection pins from one of the holes in said other of the bodies through the axial passage in each of the male insulators.

Claim 9

The electrical connector according to claim 5 wherein the flowby means comprises an axially extending channel extending through the set of threads of each of the connection sleeves, fluid communicating one of the holes in said one of the bodies with the receptacle in each of the female insulators, and an axially extending channel extending through the set of threads of each of the connection pins, fluid communicating one of the holes in said other of the bodies with the axial passage in each of the male insulators.

Claim 10

In an electrical submersible well pump having upper and lower tandem motors, an electrical connector for interconnecting the motors, comprising in combination: a female body secured to one of the motors and having a vertical axis, a cylindrical bore, an upward facing central base encircled by the bore and being perpendicular to the vertical axis, and at least one hole extending through the base parallel with the vertical axis; a male body secured to the other of the motors and having a vertical axis, a cylindrical wall that inserts within the bore of the female body, a downward facing central base encircled by the wall and being perpendicular to the vertical axis of the male body, and at least one hole extending through the base parallel with the vertical axis of the male body; seal means for sealing the cylindrical wall to the bore; fastener means for securing the bodies together with the cylindrical wall sealingly located inside the bore; at least one female insulator, each secured in one of the holes in one of the bodies, with an extension portion protruding upward past the base of the body in which the female insulator is secured, each of the female insulators having an axial passage therethrough which has a receptacle in the upper portion, a midsection joining the receptacle, and a lower section joining the midsection, the midsection being of smaller diameter than the lower section, defining a downward facing shoulder; a set of threads integrally formed in the midsection of the passage in each of the female insulators; at least one metal connection sleeve, each having one end joined to an electrical wire extending from said one of the motors through one of the holes in said one of the bodies, each sleeve having an exterior with a set of threads integrally formed thereon which engage the threads in the midsection of the passage in one of the female insulators, each connection sleeve having a flange which abuts the downward facing shoulder in the passage; at least one male insulator, each secured in one of the holes in the other of the bodies, each male insulator having a mandrel protruding downward past the base of the body in which the male insulator is secured and which inserts into one of the receptacles of one of the female insulators, each male insulator having an axial passage therethrough and an upward facing shoulder formed therein; a set of threads integrally formed in the passage in each of the male insulators below the upward facing shoulder; at least one metal connection pin, each having one end soldered to an electrical wire extending from said other of the motors through one of the holes in said other of the bodies, each pin having an exterior having a set of threads integrally formed thereon which engage the threads in the passage in one of the male insulators, each pin inserting into one of the metal sleeves when the bodies are secured together by the fastener means, each of the pins having a flange formed thereon which abuts the upward facing shoulder in the passage in the male insulator; and an axially extending channel extending through the set of threads of each of the connection pins, fluid communicating each of the holes in said other of the bodies with the axial passage in each of the male insulators, and an axially extending channel extending through the set of threads of each of the connection sleeves, fluid communicating each of the holes in said one of the bodies with the receptacle in each of the female insulators, allowing the migration of water downward through the holes in each of the bodies from the upper motor to the lower motor, and allowing air to be displaced upward through the holes in each of the bodies from the lower motor to the upper motor during filling of motor oil.

Claim 11

In an electrical submersible well pump having upper and lower tandem motors, an electrical connector for interconnecting the motors, comprising in combination: a female body secured to one of the motors and having a vertical axis, a cylindrical bore, an upward facing central base encircled by the bore and being perpendicular to the vertical axis, and at least one hole extending through the base parallel with the vertical axis; a male body secured to the other of the motors and having a vertical axis, a cylindrical wall that inserts within the bore of the female body, a downward facing central base encircled by the wall and being perpendicular to the vertical axis of the male body, and at least one hole extending through the base parallel with the vertical axis of the male body; seal means for sealing the cylindrical wall to the bore; fastener means for securing the bodies together with the cylindrical wall sealingly located inside the bore; at least one female insulator, each secured in one of the holes in one of the bodies, with an extension portion protruding upward past the base of the body in which the female insulator is secured, each of the female insulators having an axial passage therethrough which has a receptacle in the upper portion, a midsection joining the receptacle, and a lower section joining the midsection, the midsection being of smaller diameter than the lower section, defining a downward facing shoulder; a set of threads integrally formed in the midsection of the passage in each of the female insulators; at least one metal connection sleeve, each having one end joined to an electrical wire extending from said one of the motors through one of the holes in said one of the bodies, each sleeve having an exterior with a set of threads integrally formed thereon which engage the threads in the midsection of the passage in one of the female insulators, each connection sleeve having a flange which abuts the downward facing shoulder in the passage; at least one male insulator, each secured in one of the holes in the other of the bodies, each male insulator having a mandrel protruding downward past the base of the body in which the male insulator is secured and which inserts into one of the receptacles of one of the female insulators, each male insulator having an axial passage therethrough and an upward facing shoulder formed therein; a set of threads integrally formed in the passage in each of the male insulators below the upward facing shoulder; at least one metal connection pin, each having one end soldered to an electrical wire extending from said other of the motors through one of the holes in said other of the bodies, each pin having an exterior having a set of threads integrally formed thereon which engage the threads in the passage in one of the male insulators, each pin inserting into one of the metal sleeves when the bodies are secured together by the fastener means, each of the pins having a flange formed thereon which abuts the upward facing shoulder in the passage in the male insulator; and an axially extending channel extending through the set of threads of each of the connection pins, fluid communicating each of the holes in said other of the bodies with the axial passage in each of the male insulators, and an axially extending channel extending through the set of threads of each of the connection sleeves, fluid communicating each of the holes in said one of the bodies with the receptacle in each of the female insulators, allowing the migration of water downward through the holes in each of the bodies from the upper motor to the lower motor, and allowing air to be displaced upward through the holes in each of the bodies from the lower motor to the upper motor during filling of motor oil.