公开(公告)号：US11696420B2

公开(公告)日：2023-07-04

申请号：US17370369

申请日：2021-07-08

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Avadhoot Kittur ,  T. R. Milind ,  Mahesh Balakrishna Varrier ,  Robert Michael Slepian

IPC: H05K7/20 ,  H02B1/20 ,  F04D29/043

CPC classification number: H05K7/20172 ,  F04D29/043 ,  H02B1/20

Abstract: A cooling device for use with circuit interrupters includes a housing structured to be coupled to a terminal of the circuit interrupter and formed with several ventilation openings, as well as a permanent magnet, a torque converter and a fan blade all contained within the housing. When the cooling device is coupled to a terminal of a circuit interrupter and current flows through the terminals of the circuit interrupter, parasitic magnetic fields are generated and induce oscillatory motion of the permanent magnet. The torque converter is coupled to the permanent magnet and converts the oscillatory motion of the magnet to rotational motion that rotates the fan blade. The fan blade is disposed near the ventilation openings of the housing so that air flow produced by rotation of the fan blade travels across the surface of the circuit interrupter terminal nearest the ventilation openings to increase convection.

公开(公告)号：US20230012290A1

公开(公告)日：2023-01-12

申请号：US17370369

申请日：2021-07-08

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Avadhoot Kittur ,  T. R. Milind ,  Mahesh Balakrishna Varrier ,  Robert Michael Slepian

IPC: H05K7/20 ,  H02B1/20 ,  F04D29/043

Abstract: A cooling device for use with circuit interrupters includes a housing structured to be coupled to a terminal of the circuit interrupter and formed with several ventilation openings, as well as a permanent magnet, a torque converter and a fan blade all contained within the housing. When the cooling device is coupled to a terminal of a circuit interrupter and current flows through the terminals of the circuit interrupter, parasitic magnetic fields are generated and induce oscillatory motion of the permanent magnet. The torque converter is coupled to the permanent magnet and converts the oscillatory motion of the magnet to rotational motion that rotates the fan blade. The fan blade is disposed near the ventilation openings of the housing so that air flow produced by rotation of the fan blade travels across the surface of the circuit interrupter terminal nearest the ventilation openings to increase convection.

公开(公告)号：US12171086B2

公开(公告)日：2024-12-17

申请号：US18083957

申请日：2022-12-19

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Ankit Bhagat ,  Sarang Sarode ,  Avadhoot Kittur ,  Niloy Khatua ,  Robert Michael Slepian

IPC: H05K7/20 ,  H02H3/08

Abstract: A thermal management device for a circuit breaker includes: a heat pipe having an evaporator section, an adiabatic section and a condenser section; a busbar having a first portion including at least a portion of the adiabatic section of the heat pipe; a conducting busbar having a first end, a second end opposite the first end and a groove disposed on a top surface of the conducting busbar, the first end disposed adjacent to primary contacts, the second end integrated in the first portion of the busbar, the groove extending from the first end to the second end and including the evaporator section and the at least a portion of the adiabatic section of the heat pipe embedded therein; and an array of fins integrated to the second portion of the busbar, the condenser section of the heat pipe extending through the array of fins.

公开(公告)号：US20240206123A1

公开(公告)日：2024-06-20

申请号：US18083957

申请日：2022-12-19

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Ankit Bhagat ,  Sarang Sarode ,  Avadhoot Kittur ,  Niloy Khatua ,  Robert Michael Slepian

IPC: H05K7/20 ,  H02H3/08

CPC classification number: H05K7/20381 ,  H02H3/08 ,  H05K7/20309 ,  H05K7/20318 ,  H05K7/20336 ,  H05K7/20409

Abstract: A thermal management device for a circuit breaker includes: a heat pipe having an evaporator section, an adiabatic section and a condenser section; a busbar having a first portion including at least a portion of the adiabatic section of the heat pipe; a conducting busbar having a first end, a second end opposite the first end and a groove disposed on a top surface of the conducting busbar, the first end disposed adjacent to primary contacts, the second end integrated in the first portion of the busbar, the groove extending from the first end to the second end and including the evaporator section and the at least a portion of the adiabatic section of the heat pipe embedded therein; and an array of fins integrated to the second portion of the busbar, the condenser section of the heat pipe extending through the array of fins.