Granted Patent B2

US 8,928,442 · App. 13/380,986 · Granted Jan 6, 2015

Inventor: Jarkko Salomäki (Tuusula, FI)

Assignee: Earl Energy, LLC

H01F27/10H01F27/263

Abstract

Claims (32)

1. An inductive component equipped with liquid cooling, comprising:

a core assembled from separate structural elements;

a winding;

a connection unit for connecting the inductive component to another device; and

ducts integrated into the core for the purpose of liquid cooling,

wherein the structural elements are assembled side-by-side and one on top of the other around an existing structure of interconnected liquid cooling pipes, in order to build the core to cover at least part of the structure, the structural elements being assembled in such manner as to provide a space within the core which houses the winding,

the structural elements are rectangular polyhedron in shape and are manufactured by pressing from metal powder, and

at least some of the structural elements have an aperture or groove, said apertures or grooves being fitted to form liquid cooling ducts either alone or when placed face to face, and

at least some of the liquid cooling ducts are formed around respective ones of the interconnected liquid cooling pipes, said liquid cooling pipes are disposed to cool the core.

2. The inductive component according to claim 1 , wherein the aperture in the at least some of the structural elements is an essentially round hole in the structural element.

3. The inductive component according to claim 1 , wherein said apertures or grooves include a groove on one flat surface of one of the structural elements, said groove essentially corresponding to the diameter of the liquid cooling pipe, said groove being fitted to form a suitable aperture for the liquid cooling pipe in the finished assembly with the structural elements being placed face to face.

4. The inductive component according to claim 1 , wherein the liquid cooling pipe has bendings and goes several times through the core.

5. The inductive component according to claim 1 , wherein each of the at least some of the structural elements has a groove that has been manufactured when the structural element has been pressed from powder.

6. The inductive component according to claim 1 , wherein a quantity of liquid cooling pipes inside the core is according to a cooling requirement.

7. The inductive component according to claim 1 , wherein the winding is cooled to liquid inside the liquid cooling pipes through the core by compressing the winding tightly to core.

8. The inductive component according to claim 1 , wherein the winding is made of insulated cable.

9. The inductive component according to claim 5 , wherein a quantity of cooling pipes inside the core is according to a cooling requirement.

10. The inductive component according to claim 6 , wherein the winding is cooled to liquid inside the liquid cooling pipes through the core by compressing the winding tightly to core.

11. The inductive component according to claim 7 , wherein the winding is made of insulated cable.

12. A method for manufacturing an inductive component equipped with a liquid cooling structure, wherein the inductive component comprises at least a core assembled from separate structural elements, a winding, a connection unit for connecting the inductive component with another device as well as ducts integrated into the core for the purpose of liquid cooling, comprising:

assembling the structural elements side-by-side and one on top of the other around an existing structure of interconnected liquid cooling pipes, in order to manufacture the core to cover at least part of the structure, the structural elements being assembled in such manner as to provide a space within the core which houses the winding; and

manufacturing the structural elements rectangular polyhedron in shape by pressing metal powder, such that:

at least some of the structural elements have an aperture or groove, said apertures or grooves being fitted to form liquid cooling ducts either alone or when placed face to face, and

at least some of the liquid cooling ducts are formed around respective ones of the interconnected liquid cooling pipes such that said liquid cooling pipes are disposed to cool the core.

13. The method according to claim 12 , wherein the aperture in the at least some of the structural elements is an essentially round hole in the structural element.

14. The method according to claim 12 , wherein said apertures or grooves include a groove on one flat surface of one of the structural element comprises, said groove essentially corresponding to the diameter of the cooling liquid pipe, said groove being fitted to form a suitable aperture for the liquid cooling pipe in the finished assembly with the structural elements being placed face to face.

15. The method according to claim 12 , wherein a bended liquid cooling pipe that goes several times through the core is used.

16. The method according to claim 12 , wherein the manufacturing of the structural elements includes manufacturing a groove for each of the at least some of the structural elements when the structural element is pressed from powder.

17. The method according to claim 12 , further comprising determining a quantity of liquid cooling pipes to be placed inside the core according to a cooling requirement.

18. The method according to claim 12 , wherein the winding is compressed tightly to the core in order to cool the winding to liquid inside the liquid cooling pipe through the core.

19. The method according to claim 12 , wherein the winding is manufactured using insulated cable.

20. The method according to claim 14 , wherein the winding is compressed tightly to the core in order to cool the winding to liquid inside the liquid cooling pipe through the core.

Assignments (11)

Priority Claims (1)

Continuity (1)