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1. WO2020142796 - METHOD OF COOLING A SHELL-TYPE TRANSFORMER OR INDUCTOR

Publication Number WO/2020/142796
Publication Date 09.07.2020
International Application No. PCT/ZA2020/050001
International Filing Date 03.01.2020
IPC
H01F 27/08 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
08Cooling; Ventilating
H01F 27/245 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
24Magnetic cores
245made from sheets, e.g. grain-oriented
CPC
H01F 2027/348
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
348Preventing eddy currents
H01F 27/245
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
24Magnetic cores
245made from sheets, e.g. grain-oriented
H01F 3/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
3Cores, Yokes, or armatures
02made from sheets
H01F 3/14
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
3Cores, Yokes, or armatures
10Composite arrangements of magnetic circuits
14Constrictions; Gaps, e.g. air-gaps
H01F 41/0233
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
02for manufacturing cores, coils, or magnets
0206Manufacturing of magnetic cores by mechanical means
0233Manufacturing of magnetic circuits made from sheets
Applicants
  • VAN DER MERWE, Jacobus Johannes [ZA]/[ZA]
Inventors
  • VAN DER MERWE, Jacobus Johannes
Priority Data
2019/0007504.01.2019ZA
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF COOLING A SHELL-TYPE TRANSFORMER OR INDUCTOR
(FR) PROCÉDÉ DE REFROIDISSEMENT D'UN TRANSFORMATEUR OU D'UNE BOBINE D'INDUCTION DE TYPE COQUE
Abstract
(EN)
A Method of cooling a shell-type transformer (400.0) or inductor (of any size) is disclosed. The center of the ferromagnetic core is cooled. The effective outside area of the core is enlarged. The transformer core is organized to have any number of cooling holes (400.3.1), (400.3.2) without reducing the area for magnetic flux to circulate around the core. Several embodiments are disclosed. Various improvements may be made without departing from the methods and principals disclosed in this patent.
(FR)
L'invention concerne un procédé de refroidissement d'un transformateur (400.0) ou d'une bobine d'induction (de n'importe quelle taille) de type coque. Le centre du noyau ferromagnétique est refroidi. La surface externe efficace du noyau est agrandie. Le noyau de transformateur est organisé pour avoir un nombre quelconque de trous de refroidissement (400.3.1), (400.3.2) sans réduire la surface de flux magnétique de circulation autour du noyau. L'invention divulgue plusieurs modes de réalisation. Diverses améliorations peuvent être apportées sans s'éloigner des procédés et des principes divulgués dans ce brevet.
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