EP2992536A1 - Bobbin and transformer employing the same - Google Patents
Bobbin and transformer employing the sameInfo
- Publication number
- EP2992536A1 EP2992536A1 EP14719794.1A EP14719794A EP2992536A1 EP 2992536 A1 EP2992536 A1 EP 2992536A1 EP 14719794 A EP14719794 A EP 14719794A EP 2992536 A1 EP2992536 A1 EP 2992536A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bobbin
- transformer
- winding
- core
- air gap
- 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.)
- Granted
Links
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
- H01F5/00—Coils
- H01F5/02—Coils wound on non-magnetic supports, e.g. formers
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- 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
Definitions
- a conventional bobbin also inhibits efficient air-flow and reduces the local heat transfer coefficient on the portion of the windings directed towards or in contact with the bobbin.
- medium frequency transformers typically have demanding insulation requirements, and are of small overall size due to their high operating frequency. Therefore, the insulating air gap becomes a limiting factor when trying to achieve the aim of shrinking the transformer size.
- Fig. 1 shows a fluid-cooled transformer 10 according to embodiments.
- the transformer has a shell-type core 20 having three limbs 22, 23, 24.
- a bobbin 60 of a transformer 10 according to embodiments is shown.
- the bobbin 60 comprises four substantially rectangular segments 1 10, 1 12, 1 14, 1 16.
- Each segment 110, 1 12, 114, 1 16 extends between two neighboring supporting portions 70 of a pillar-like, elongated shape.
- the segments 1 10, 112, 1 14, 1 16 together form the cage-like bobbin 60 with rectangular cross section.
- the cage-like bobbin 60 has a cube-like shape, wherein the segments 110, 1 12, 114, 1 16 form four of the six side faces of the cube, and wherein two opposite side faces are left out.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14719794.1A EP2992536B1 (en) | 2013-04-29 | 2014-04-29 | Bobbin and transformer employing the same |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13165777 | 2013-04-29 | ||
EP14719794.1A EP2992536B1 (en) | 2013-04-29 | 2014-04-29 | Bobbin and transformer employing the same |
PCT/EP2014/058674 WO2014177534A1 (en) | 2013-04-29 | 2014-04-29 | Bobbin and transformer employing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2992536A1 true EP2992536A1 (en) | 2016-03-09 |
EP2992536B1 EP2992536B1 (en) | 2017-05-31 |
Family
ID=48184092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14719794.1A Not-in-force EP2992536B1 (en) | 2013-04-29 | 2014-04-29 | Bobbin and transformer employing the same |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2992536B1 (en) |
CN (1) | CN105144314B (en) |
WO (1) | WO2014177534A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107112122B (en) * | 2015-05-15 | 2018-11-30 | 富士电机株式会社 | The cooling construction of coil assembly |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT365850B (en) * | 1979-05-07 | 1982-02-25 | Zumtobel Ag | COIL BODY FOR ELECTRIC WIRE WINDINGS |
DE8007711U1 (en) * | 1980-03-21 | 1980-09-11 | W. Meffert Kg, 4006 Erkrath | BOBBIN FOR RECEIVING ELECTROTECHNICAL REEL |
GB2333646B (en) * | 1998-05-29 | 2000-01-12 | Electronic Tech | Transformer bobbin |
EP1283589A3 (en) * | 2001-08-09 | 2003-03-26 | Bombardier Transportation GmbH | Power converter module |
DE10203246B4 (en) * | 2002-01-21 | 2004-01-29 | Bombardier Transportation Gmbh | Medium-frequency transformer |
US8698588B2 (en) * | 2010-07-02 | 2014-04-15 | Samsung Electro-Mechanics Co., Ltd. | Transformer |
-
2014
- 2014-04-29 WO PCT/EP2014/058674 patent/WO2014177534A1/en active Application Filing
- 2014-04-29 EP EP14719794.1A patent/EP2992536B1/en not_active Not-in-force
- 2014-04-29 CN CN201480024235.2A patent/CN105144314B/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2014177534A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2992536B1 (en) | 2017-05-31 |
CN105144314B (en) | 2017-03-22 |
WO2014177534A1 (en) | 2014-11-06 |
CN105144314A (en) | 2015-12-09 |
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