EP0653099B1 - A transformer - Google Patents
A transformer Download PDFInfo
- Publication number
- EP0653099B1 EP0653099B1 EP94916416A EP94916416A EP0653099B1 EP 0653099 B1 EP0653099 B1 EP 0653099B1 EP 94916416 A EP94916416 A EP 94916416A EP 94916416 A EP94916416 A EP 94916416A EP 0653099 B1 EP0653099 B1 EP 0653099B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- board
- sleeve
- perforation
- divider
- bobbin
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims abstract description 19
- 238000010168 coupling process Methods 0.000 claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 claims abstract description 19
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
- H01F27/325—Coil bobbins
-
- 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
- H01F27/32—Insulating of coils, windings, or parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
- H01F2005/025—Coils wound on non-magnetic supports, e.g. formers wound on coaxial arrangement of two or more formers
Definitions
- This invention relates to a transformer.
- a conventional transformer comprises the bobbin, first and second coils attached to the bobbin, a magnetic core attached to the bobbin, and first-set and second-set connectors.
- the first and the second coils are attached around the sleeve between the divider plates.
- the first and the second coils are connected to the first-set and the second-set converters, respectively.
- the bobbin and the transformer it is hardly possible to reliably insulate the first coil from the second coil by the divider plates. This is because the divider plates do not surround the first coil or the second coil. Also, inasmuch as the divider plates are perpendicular to the sleeve and are high in height, the bobbin and the transformer are high in height.
- the EP-A-0 325 467 discloses a tranformer according the preambles of independent claims 1 to 3.
- the conventional bobbin comprises a sleeve 21, a plurality of divider plates 23, and first and second end plates 25 and 27.
- the sleeve 21 has a sleeve internal surface 28 which defines a sleeve perforation.
- the divider plates 23 are attached to the sleeve with a space left between two adjacent ones of the divider plates 23 and with the divider plates 23 perpendicular to the sleeve 21.
- the first and the second end plates 25 and 27 are attached to side ends of the sleeve 21 with a space left between one of the divider plates 23 and each of the first and the second end plates 25 and 27.
- FIG. 2 a conventional transformer will be described for a better understanding of this invention. Similar parts are designated by like reference numerals.
- the conventional transformer comprises the bobbin, first and second coils 29 and 31 attached to the bobbin, a magnetic core (not shown) attached to the bobbin, and first-set and second-set connectors 33 and 35 fixed to the bobbin.
- the first and the second coils 29 and 31 are attached around the sleeve 21 between the divider plates 23.
- the first and the second coils 29 and 31 are connected to the first-set and the second-set connectors 33 and 35, respectively.
- the divider plates 23 do not surround the first coil 29 or the second coil 31, it is hardly possible to reliably insulate the first coil 29 from the second coil 31 by the divider plates 23. Also, inasmuch as the divider plates 23 are perpendicular to the sleeve 21 and are high in height, the bobbin and the transformer are high in height.
- the transformer comprises a bobbin 41, first and second coils 43 and 45 attached to the bobbin 41, first and second magnetic cores 47 and 49 attached to the bobbin 41, and first-set and second-set connectors 51 and 53 fixed to the bobbin 41.
- the bobbin 41 is made of insulating material.
- the bobbin 41 comprises first and second boards 55 and 57, first and second sleeves 59 and 61, and a divider sleeve 63.
- the first board 55 has a first board main surface 65, a first board subsidiary surface 67, and a first board internal surface 69 which defines a first board perforation.
- the second board 57 has a second board main surface 71 opposed to the first board main surface 65, a second board subsidiary surface 73, and second and third board internal surfaces 75 and 77 which define second and third board perforations.
- the first sleeve 59 has a first sleeve internal surface 79 which defines a first sleeve perforation.
- the first sleeve 59 is integral with the first board 55 with the first sleeve perforation associated with the first board perforation.
- the second sleeve 61 has a second sleeve internal surface 81 which defines a second sleeve perforation.
- the second sleeve 61 is integral with the second board 57 with the second sleeve perforation associated with the second board perforation.
- the second board and the second sleeve perforations receive the first sleeve 59.
- the divider sleeve 63 has a divider sleeve internal surface 83 which defines a divider sleeve perforation.
- the divider sleeve 63 is integral with the second board 57 with the divider sleeve 63 surrounding the second sleeve 61 and the third board perforation and with the divider sleeve 63 interposed between the first and the second board main surfaces 65 and 71 so that the divider sleeve 63 surrounds the first sleeve 59.
- the divider sleeve 63 is welded to the first board main surface 65.
- the divider sleeve 63 may be glued to the first board main surface 65.
- the first coil 43 is attached around the divider sleeve 63 and is connected to the first-set connectors 51.
- the second coil 45 is attached around the second sleeve 61 and is connected to the second-set connectors 53 through the third board perforation.
- the first magnetic core 47 has a first leg 85.
- the first magnetic core 47 is brought into contact with the first board subsidiary surface 67 with the first leg 85 inserted in the first sleeve perforation.
- the second magnetic core 49 has a second leg 87.
- the second magnetic core 49 is brought into contact with the second board subsidiary surface 73 with the second leg 87 inserted in the first sleeve perforation and brought into contact with the first leg 85.
- a first end portion of the first magnetic core 47 is brought into contact with a second end portion of the second magnetic core 49 and is glued to the second end portion.
- FIG. 8 and 9 the description will proceed to a transformer for describing the background of this invention.
- the transformer comprises similar parts designated by like reference numerals.
- the divider sleeve 63 is integral with the first board 55 with the divider sleeve 63 surrounding the first sleeve 59.
- the divider sleeve 63 further has a contact peak portion 89 which is brought into contact with the second board main surface 71.
- the divider sleeve 63 surrounds the second sleeve 61 and the third board perforation.
- the second board 57 has first side surfaces 91 to which the first-set connectors 53 are fixed.
- the third board internal surface 77 reaches the first side surfaces 91.
- the second board 57 further has fourth and fifth board internal surfaces 93 and 95 which define fourth and fifth board perforations.
- First and second coupling arms 97 and 99 have first and second coupling peak portions and are integral with the first board 55. The first and the second coupling arms 97 and 99 pass through the fourth and the fifth board perforations with the first and the second peak portions brought into contact with the second board subsidiary surface 73.
- the transformer comprises similar parts designated by like reference numerals.
- the second board 57 has first and second ditch surfaces 101 and 103 which reach from the second board main surface 71 to the second board subsidiary surface 73 and which define first and second ditches.
- the first and the second coupling arms 97 and 99 pass through the first and the second ditches with the first and the second coupling peak portions brought into contact with the second board subsidiary surface 73.
- the second board 57 has a locating lug 105 which is inserted in the third board perforation.
- the divider sleeve 63 may be integral with the second board 57 with the divider sleeve 63 surrounding the second sleeve 61 and the third board perforation. In this event, the divider sleeve 63 is interposed between the first and the second board main surfaces 65 and 71 so that the divider sleeve 63 surrounds the first sleeve 59.
- the divider sleeve 63 has the contact peak portion 89 which is brought into contact with the first board main surface 65.
- the divider sleeve 63 may have not the contact peak portion 89. In this event, the divider sleeve 63 is directly brought into contact with the first or the second board main surface 65 or 71.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Insulating Of Coils (AREA)
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP154153/93 | 1993-05-31 | ||
JP15415493 | 1993-05-31 | ||
JP154154/93 | 1993-05-31 | ||
JP5154153A JPH06342726A (ja) | 1993-05-31 | 1993-05-31 | 高圧トランス用コイルボビン |
JP54977/94 | 1994-02-28 | ||
JP5497794 | 1994-02-28 | ||
PCT/JP1994/000860 WO1994028561A1 (en) | 1993-05-31 | 1994-05-31 | A bobbin capable of reliably insulating a first coil from a second coil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0653099A1 EP0653099A1 (en) | 1995-05-17 |
EP0653099B1 true EP0653099B1 (en) | 1997-01-15 |
Family
ID=27295452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94916416A Expired - Lifetime EP0653099B1 (en) | 1993-05-31 | 1994-05-31 | A transformer |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0653099B1 (no) |
JP (1) | JPH08502860A (no) |
KR (1) | KR100310372B1 (no) |
CN (1) | CN1085390C (no) |
DE (1) | DE69401485T2 (no) |
HK (1) | HK1002924A1 (no) |
MY (1) | MY111103A (no) |
NO (1) | NO305459B1 (no) |
SG (1) | SG45178A1 (no) |
TW (1) | TW239216B (no) |
WO (1) | WO1994028561A1 (no) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005340342A (ja) * | 2004-05-25 | 2005-12-08 | Yoshiaki Akachi | コイル装置 |
JP6099135B2 (ja) * | 2013-03-27 | 2017-03-22 | 日本電気通信システム株式会社 | 電子機器、実装基板、及び実装基板の製造方法 |
JP6138540B2 (ja) * | 2013-03-27 | 2017-05-31 | 日本電気通信システム株式会社 | トランスおよびその製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2100303B (en) * | 1981-06-13 | 1984-08-01 | Carclo Eng Group Plc | Improvements in or relating to cardclothing |
FR2529375A1 (fr) * | 1982-06-23 | 1983-12-30 | Legrand Sa | Dispositif electromagnetique tel que transformateur electrique, du genre comportant une carcasse en deux parties |
DE3335814A1 (de) * | 1983-10-01 | 1985-04-25 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth | Kammerspulenkoerper |
JPS6181612A (ja) * | 1984-09-28 | 1986-04-25 | Matsushita Electric Ind Co Ltd | 変成器 |
US4857878A (en) * | 1988-01-19 | 1989-08-15 | Eng Jr Benjamin | Modular high frequency power transformer |
JP2668545B2 (ja) * | 1988-04-26 | 1997-10-27 | 株式会社キジマ | 電気巻線部品 |
FR2643534B1 (fr) * | 1989-02-02 | 1993-09-17 | Gen Electric Cgr | Dispositif d'alimentation haute tension pour tube a rayons x |
-
1994
- 1994-05-30 MY MYPI94001364A patent/MY111103A/en unknown
- 1994-05-30 TW TW083104921A patent/TW239216B/zh active
- 1994-05-31 WO PCT/JP1994/000860 patent/WO1994028561A1/en active IP Right Grant
- 1994-05-31 CN CN94190336A patent/CN1085390C/zh not_active Expired - Fee Related
- 1994-05-31 SG SG1996000997A patent/SG45178A1/en unknown
- 1994-05-31 JP JP6517895A patent/JPH08502860A/ja active Pending
- 1994-05-31 EP EP94916416A patent/EP0653099B1/en not_active Expired - Lifetime
- 1994-05-31 KR KR1019950700292A patent/KR100310372B1/ko not_active IP Right Cessation
- 1994-05-31 DE DE69401485T patent/DE69401485T2/de not_active Expired - Fee Related
-
1995
- 1995-01-27 NO NO950331A patent/NO305459B1/no not_active IP Right Cessation
-
1998
- 1998-03-11 HK HK98102030A patent/HK1002924A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SG45178A1 (en) | 1998-01-16 |
DE69401485T2 (de) | 1997-06-05 |
WO1994028561A1 (en) | 1994-12-08 |
KR950702740A (ko) | 1995-07-29 |
HK1002924A1 (en) | 1998-09-25 |
NO950331D0 (no) | 1995-01-27 |
NO305459B1 (no) | 1999-05-31 |
DE69401485D1 (de) | 1997-02-27 |
NO950331L (no) | 1995-01-27 |
CN1085390C (zh) | 2002-05-22 |
KR100310372B1 (ko) | 2003-05-09 |
MY111103A (en) | 1999-08-30 |
JPH08502860A (ja) | 1996-03-26 |
CN1110489A (zh) | 1995-10-18 |
TW239216B (no) | 1995-01-21 |
EP0653099A1 (en) | 1995-05-17 |
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