Magnetic component

Patent metadata

Field	Value
Publication number	US-2018358162-A1
Application number	US-201815987896-A
Country	US
Kind code	A1
Filing date	May 23, 2018
Priority date	Jun 8, 2017
Publication date	Dec 13, 2018
Grant date	—

Abstract

A magnetic component includes a magnetic core and a first winding module. The magnetic core has two opposite openings and at least one magnetic column. The first winding module has a plurality of annular metal plates disposed around the at least one magnetic column. Each of the annular metal plates has an electrical connection end, an annular portion and a heat-dissipating end. The electrical connection end and the heat-dissipation end are located at the two opposite openings of the magnetic core respectively. A thermal-dissipating area of the heat-dissipating end is greater than a cross-sectional area of a connection portion between the heat-dissipating end and the annular portion.

First claim

What is claimed is:

1 . A magnetic component comprising:
a magnetic core having two opposite openings and at least one magnetic column; and a first winding module having a plurality of annular metal plates are through by the at least one magnetic column, wherein each annular metal plate has an electrical connection end, an annular portion, and a heat-dissipating end, the electrical connection end and the heat-dissipation end are located aligned with the two opposite openings of the magnetic core respectively, a thermal dissipation area of the heat-dissipating end is greater than a cross-sectional area of a connection portion between the heat-dissipating end and the annular portion.

2 . The magnetic component of claim 1 , wherein a cross-section of the heat-dissipating end and the annular portion collectively define an L-shaped cross-section.

3 . The magnetic component of claim 1 , wherein a cross-section of the heat-dissipating end and the annular portion collectively define a T-shaped cross-section.

4 . The magnetic component of claim 1 , wherein the heat-dissipating end of each annular metal plate protrudes out of the aligned one of the two opposite openings.

5 . The magnetic component of claim 1 , wherein a total sum of the thermal dissipation areas of the first winding module is greater than or equal to an area of the aligned one of the two opposite openings.

6 . The magnetic component of claim 1 , wherein the heat-dissipating ends of the annular metal plates are electrically insulated from each other.

7 . The magnetic component of claim 1 , wherein each electrical connection end has a barb structure, which engages a printed circuit board.

8 . The magnetic component of claim 1 , wherein each annular metal plate is a single coil of circuit.

9 . The magnetic component of claim 1 , wherein at least part of the annular metal plates are electrically coupled with one another to form multiple coils of circuit.

10 . The magnetic component of claim 1 , wherein each annular metal plate is an annular cooper plate.

11 . The magnetic component of claim 1 , wherein the magnetic core has an inner chamber within which a thermal resin is filled.

12 . The magnetic component of claim 1 , wherein each electrical connection end has a protrusion portion that has a height.

13 . The magnetic component of claim 1 further comprising a second winding module, wherein the second winding module comprises a plurality of bobbins, the annular metal plates and the bobbins are alternately disposed within the magnetic core, wherein the second winding module further comprises a plurality of coil wires wound around each of the bobbins.

14 . The magnetic component of claim 13 , wherein each bobbin has a plurality of wire management slots arranged symmetrically.

15 . The magnetic component of claim 13 , wherein each bobbin has a convex position block, the electrical connection end of each annular metal plate has a notch, the convex position block engages the notch when the bobbins and the annular metal plates are assembled within the magnetic core.

16 . The magnetic component of claim 13 , wherein the coil wires constitute three layers insulated wires.

17 . The magnetic component of claim 14 , wherein each coil wire has an end that is led through corresponding ones of the wire management slots and electrically connected to a lead terminal.

18 . The magnetic component of claim 14 , wherein the magnetic component is a transformer.

19 . An automotive power supply comprising:
a water-cooling metal block having a concave portion; and the magnetic component of claim 1 installed within the concave portion, and the heat-dissipating end of each annular metal plate thermally contacting the water-cooling metal block.

20 . The automotive power supply of claim 19 further comprising a first printed circuit board coupled with the electrical connection end of each annular metal plate.

21 . The automotive power supply of claim 19 further comprising a second printed circuit board coupled with the heat-dissipating end of each annular metal plate.

Assignees

• Delta Electronics Shanghai Co

Inventors

• Huang Zhen-Rong
• You Pei-Ai
• Sun Hao
• Yang hai-jun
• Lu Zeng-Yi

Classifications

• H01F27/2876

  Cooling (cooling transformers and inductances in general H01F27/08) · CPC title

• H01F27/022

  Encapsulation · CPC title

• H01F17/043

  with two, usually identical or nearly identical parts enclosing completely the coil (pot cores) · CPC title

• H01F27/16

  Water cooling · CPC title

• H01F27/22 Primary

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