Magnetic component

Patent metadata

Field	Value
Publication number	US-2018166207-A1
Application number	US-201615510995-A
Country	US
Kind code	A1
Filing date	May 31, 2016
Priority date	May 31, 2016
Publication date	Jun 14, 2018
Grant date	—

Abstract

A magnetic component has a core 80 provided with a leg 81; and a coil structure having a coil 10, 20 including conductors wrapped around the leg 81, and two or more radiative insulating sheets 100 provided between the conductors; a radiator 91, 92 brought into contact with an end surface of the core 80, and extending toward the radiative insulating sheets 100 and brought into contact with the surface of the radiative insulating sheets 100.

First claim

What is claimed is:

1 . A magnetic component comprising:
a core provided with a leg; wherein a coil structure having a coil including conductors wrapped around the leg, and two or more radiative insulating sheets provided between the conductors; and wherein a radiator brought into contact with an end surface of the core, and extending toward the radiative insulating sheets and brought into contact with the surface of the radiative insulating sheets. wherein the two or more radiative insulating sheets have a first radiative insulating sheet, and a second radiative insulating sheet having an area in a surface direction larger than an area of the first radiative insulating sheet, wherein the first radiative insulating sheet is disposed in a position closer to the radiator than the second radiative insulating sheet, and wherein the radiator is brought into contact with the surfaces of the first radiative insulating sheet and the second radiative insulating sheet.

2 . (canceled)

3 . The magnetic component according to claim 1 ,
wherein the radiative insulating sheets have a third radiative insulating sheet having an area in the surface direction larger than the an area of the second radiative insulating sheet, wherein the second radiative insulating sheet is disposed in a position closer to the radiator than the third radiative insulating sheet, and wherein the radiator is brought into contact with the surfaces of the first radiative insulating sheet, the second radiative insulating sheet and the third radiative insulating sheet.

4 . The magnetic component according to claim 1 ,
wherein the two or more radiative insulating sheets have low conductivity insulating sheet and high conductivity insulating sheet, whose conductivity is higher than conductivity that of the low conductivity insulating sheet, and
wherein at least a surface of the high conductivity insulating sheet is brought into contact with the radiator.

5 . The magnetic component according to claim 1 ,
wherein the radiator has a first radiator brought into contact with a first end surface of the core and a second radiator brought into contact with a second end surface of the core,
wherein the first radiator extends toward the radiative insulating sheet and is brought into contact with a surface of a first radiator side of the radiative insulating sheets, and
wherein the second radiator extends toward the radiative insulating sheet and is brought into contact with a surface of a second radiator side of the radiative insulating sheet.

6 . The magnetic component according to claim 1 ,
wherein the coil structure has a first coil structure and a second coil structure provided separately from the first coil structure,
wherein each of the first coil structure and the second coil structure has the coil and two or more radiative insulating sheets,
wherein the radiator has a first radiator brought into contact with a first end surface of the core and a second radiator brought into contact with a second end surface of the core,
wherein the first radiator extends toward the radiative insulating sheet of the first coil structure and is brought into contact with a surface of a first radiator side of this radiative insulating sheets, and
wherein the second radiator extends toward the radiative insulating sheet of the second coil structure and is brought into contact with a surface of a second radiator side of this radiative insulating sheet.

Assignees

• Shindengen Electric Mfg

Inventors

• Ikeda Kosuke
• Hiruma Yoshiaki

Classifications

• H01F27/323 Primary

  Insulation between winding turns, between winding layers · CPC title

• H01F27/22

  Cooling by heat conduction through solid or powdered fillings · CPC title

• H01F27/24

  Magnetic cores · CPC title

• H01F30/10

  Single-phase transformers (H01F30/16 takes precedence) · CPC title