GB1209253A - Improvements in or relating to transformer cores - Google Patents
Improvements in or relating to transformer coresInfo
- Publication number
- GB1209253A GB1209253A GB486368A GB486368A GB1209253A GB 1209253 A GB1209253 A GB 1209253A GB 486368 A GB486368 A GB 486368A GB 486368 A GB486368 A GB 486368A GB 1209253 A GB1209253 A GB 1209253A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- winding
- coating
- halves
- transformer
- 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
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
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
Abstract
1,209,253. Transformers. ROSS & CATHERALL Ltd. 31 March, 1969 [31 Jan., 1968], No. 4863/68. Heading H1T. The core 1 of a transformer is formed by a winding of strip metal 2, such as grain-orientated silicon iron, the core then being coated on its external surface with a hardenable synthetic plastics material 3 to bond the winding into a rigid structure. Prior to the application of the coating 3, which may be an epoxy resin or glassfibre-reinforced plastics material, the core is annealed to relieve strain hardening produced by the winding and forming processes. The core is bonded externally by the coating, which may be applied in a fluidized bed or by electrostatic spraying, to a uniform thickness. Strain introduced in the core by this bonding is partially relieved when the core is cut into halves 4, 5 to receive the transformer windings. The coating 3 may also serve to insulate the core from e.g. toroidal windings applied directly to the core halves. The faces 6, 7 are ground and lapped to reduce the air gap between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB486368A GB1209253A (en) | 1968-01-31 | 1968-01-31 | Improvements in or relating to transformer cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB486368A GB1209253A (en) | 1968-01-31 | 1968-01-31 | Improvements in or relating to transformer cores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1209253A true GB1209253A (en) | 1970-10-21 |
Family
ID=9785238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB486368A Expired GB1209253A (en) | 1968-01-31 | 1968-01-31 | Improvements in or relating to transformer cores |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1209253A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2179502A (en) * | 1985-08-22 | 1987-03-04 | Emc Datacare Ltd | Radio frequency choke |
| US7026905B2 (en) | 2000-05-24 | 2006-04-11 | Magtech As | Magnetically controlled inductive device |
| US7061356B2 (en) | 2001-11-21 | 2006-06-13 | Magtech As | Controllable transformer |
| US7180206B2 (en) | 2002-12-12 | 2007-02-20 | Magtech As | System for voltage stabilization of power supply lines |
| US7259544B2 (en) | 2004-10-14 | 2007-08-21 | Magtech As | Load symmetrization with controllable inductor |
| CN114746966A (en) * | 2019-12-18 | 2022-07-12 | 永磁有限公司 | Magnetic core assembly and manufacturing process thereof |
-
1968
- 1968-01-31 GB GB486368A patent/GB1209253A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2179502A (en) * | 1985-08-22 | 1987-03-04 | Emc Datacare Ltd | Radio frequency choke |
| US7026905B2 (en) | 2000-05-24 | 2006-04-11 | Magtech As | Magnetically controlled inductive device |
| US7256678B2 (en) | 2000-05-24 | 2007-08-14 | Magtech As | Magnetically controlled inductive device |
| US7061356B2 (en) | 2001-11-21 | 2006-06-13 | Magtech As | Controllable transformer |
| US7180206B2 (en) | 2002-12-12 | 2007-02-20 | Magtech As | System for voltage stabilization of power supply lines |
| US7259544B2 (en) | 2004-10-14 | 2007-08-21 | Magtech As | Load symmetrization with controllable inductor |
| CN114746966A (en) * | 2019-12-18 | 2022-07-12 | 永磁有限公司 | Magnetic core assembly and manufacturing process thereof |
| CN114746966B (en) * | 2019-12-18 | 2024-03-08 | 永磁有限公司 | Magnetic core assembly and process for manufacturing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |