EP0276419A3 - Toroidal-core transformer with at least two windings - Google Patents

Toroidal-core transformer with at least two windings Download PDF

Info

Publication number: EP0276419A3
Authority: EP; European Patent Office
Prior art keywords: toroidal; windings; core transformer; transformer; core
Prior art date: 1987-01-22
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP87118025A

Other languages

German (de)

Other versions

EP0276419A2 (en

EP0276419B1 (en

Inventor

Helmut Gertz

Harald Hundt

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Vacuumschmelze GmbH and Co KG

Original Assignee

Vacuumschmelze GmbH and Co KG

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1987-01-22

Filing date

1987-12-05

Publication date

1988-08-17

1987-12-05 Application filed by Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG

1988-08-03 Publication of EP0276419A2 publication Critical patent/EP0276419A2/en

1988-08-17 Publication of EP0276419A3 publication Critical patent/EP0276419A3/en

1992-06-10 Application granted granted Critical

1992-06-10 Publication of EP0276419B1 publication Critical patent/EP0276419B1/en

2007-12-05 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/16—Toroidal transformers

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Insulating Of Coils (AREA)
Coils Of Transformers For General Uses (AREA)

EP87118025A 1987-01-22 1987-12-05 Toroidal-core transformer with at least two windings Expired - Lifetime EP0276419B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3701686		1987-01-22
DE19873701686 DE3701686A1 (en)	1987-01-22	1987-01-22	RING CORE TRANSFORMER WITH AT LEAST TWO WINDINGS

Publications (3)

Publication Number	Publication Date
EP0276419A2 EP0276419A2 (en)	1988-08-03
EP0276419A3 true EP0276419A3 (en)	1988-08-17
EP0276419B1 EP0276419B1 (en)	1992-06-10

Family

ID=6319241

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP87118025A Expired - Lifetime EP0276419B1 (en)	1987-01-22	1987-12-05	Toroidal-core transformer with at least two windings

Country Status (3)

Country	Link
EP (1)	EP0276419B1 (en)
JP (1)	JP2587017B2 (en)
DE (2)	DE3701686A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10213593B4 (en) *	2002-03-26	2005-08-25	Tuilaser Ag	High-voltage pulse transformer
CN112786293A (en) *	2021-01-07	2021-05-11	海鸿电气有限公司	Waterproof transformer coil structure and manufacturing method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE483215A (en) *
US2907968A (en) *	1951-04-13	1959-10-06	Siemens Ag	Edgewise wound reactor coils and method of making the same
DE2450481A1 (en) *	1974-10-24	1976-05-13	Transformatoren Union Ag	Power transformer with rectangular core - has coaxial windings to occupy minimum space and resists internal forces
GB2026251A (en) *	1978-07-24	1980-01-30	Connor J	Electro-magnetic devices
EP0070783A1 (en) *	1981-07-20	1983-01-26	Legrand	Coil spacer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6184011A (en) *	1984-09-29	1986-04-28	Osaka Denki Kk	Coil winding frames for transformers, etc.

1987
- 1987-01-22 DE DE19873701686 patent/DE3701686A1/en not_active Withdrawn
- 1987-12-05 DE DE8787118025T patent/DE3779746D1/en not_active Expired - Lifetime
- 1987-12-05 EP EP87118025A patent/EP0276419B1/en not_active Expired - Lifetime
1988
- 1988-01-12 JP JP63005685A patent/JP2587017B2/en not_active Expired - Fee Related

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE483215A (en) *
US2907968A (en) *	1951-04-13	1959-10-06	Siemens Ag	Edgewise wound reactor coils and method of making the same
DE2450481A1 (en) *	1974-10-24	1976-05-13	Transformatoren Union Ag	Power transformer with rectangular core - has coaxial windings to occupy minimum space and resists internal forces
GB2026251A (en) *	1978-07-24	1980-01-30	Connor J	Electro-magnetic devices
EP0070783A1 (en) *	1981-07-20	1983-01-26	Legrand	Coil spacer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 255 (E-433)[2311], 2. September 1986; & JP-A-61 084 011 (OSAKA DENKI K.K.) 28-04-1986 *

Also Published As

Publication number	Publication date
JPS63188911A (en)	1988-08-04
EP0276419A2 (en)	1988-08-03
DE3779746D1 (en)	1992-07-16
EP0276419B1 (en)	1992-06-10
DE3701686A1 (en)	1988-08-04
JP2587017B2 (en)	1997-03-05

Publication	Publication Date	Title
EP0273171A3 (en)	1989-03-08	Superconducting transformer
YU201588A (en)	1991-02-28	High tension transformer
DE3572247D1 (en)	1989-09-14	Transformer having concentric coils
GB8713314D0 (en)	1987-07-08	Current transformers
EP0276419A3 (en)	1988-08-17	Toroidal-core transformer with at least two windings
GB8510471D0 (en)	1985-05-30	Transformer
GB8819163D0 (en)	1988-09-14	Current transformer
GB8529920D0 (en)	1986-01-15	Transformers
KR910002350Y1 (en)	1991-04-11	Flyback transformer
KR900009580Y1 (en)	1990-10-15	Flyback transformer
GB2168201B (en)	1987-12-23	Transformer cores
PL265562A1 (en)	1988-11-10	Multiwinding transformer arrangement
GB8521583D0 (en)	1985-10-23	Transformer
SU1568121A1 (en)	1990-05-30	Quasioptical transformer
GB8427677D0 (en)	1984-12-05	Transformer controller
GB2199701B (en)	1991-04-17	Flyback transformer
GB8728557D0 (en)	1988-01-13	Transformer power control
ZA888011B (en)	1990-07-25	Transformer bushing
GB8520025D0 (en)	1985-09-18	Transformer bobbin
GB8520026D0 (en)	1985-09-18	Transformer bobbin
GB8622019D0 (en)	1986-10-22	Transformer
GB2168202B (en)	1988-05-18	Transformer cores
GB8531542D0 (en)	1986-02-05	Transformer
IL72870A0 (en)	1984-12-31	Transformer
SU1568968A1 (en)	1990-06-07	Photocardiographic transformer

Legal Events

Date	Code	Title	Description
1988-06-18	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1988-06-27	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1988-08-03	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): CH DE FR GB IT LI SE
1988-08-17	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): CH DE FR GB IT LI SE
1988-11-23	17P	Request for examination filed	Effective date: 19880922
1991-06-12	17Q	First examination report despatched	Effective date: 19910426
1991-11-27	ITF	It: translation for a ep patent filed
1992-04-24	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1992-06-10	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): CH DE FR GB IT LI SE
1992-07-08	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1992-07-16	REF	Corresponds to:	Ref document number: 3779746 Country of ref document: DE Date of ref document: 19920716
1992-08-07	ET	Fr: translation filed
1993-04-09	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1993-04-09	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1993-06-02	26N	No opposition filed
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 87118025.3
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