GB1336976A - Insulating toroidal transformers - Google Patents
Insulating toroidal transformersInfo
- Publication number
- GB1336976A GB1336976A GB1336976DA GB1336976A GB 1336976 A GB1336976 A GB 1336976A GB 1336976D A GB1336976D A GB 1336976DA GB 1336976 A GB1336976 A GB 1336976A
- Authority
- GB
- United Kingdom
- Prior art keywords
- windings
- channels
- toroidal
- channel
- sealed
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/323—Insulation between winding turns, between winding layers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
1336976 Transformers STANDARD TELEPHONES & CABLES Ltd 17 Feb 1972 7316/72 Heading H1T A method of making a toroidal transformer includes placing an inner winding or windings, 1, on a toroidal core, 2, placing insulation in the form of two toroidal channels, 3, over. the inner winding or windings, forming an outer winding or windings 4, and placing insulation in the form of two more toroidal channels, 5, over the whole structure. The core, 2, may be of a ferrite material or may be of a suitable alloy covered with an insulating material. Leads to the windings can emerge through the semas 6 and 7 of the channels, the seam 6, later being sealed with tape. The channels may be blow-moulded from a sheet of a suitable plastics material e.g. nylon, P.V.C. or polyester, and may include an embossed legend and/or cut-outs for retaining a terminal strip. The channels may also include flexible wiring. Electrostatic screening between the windings can be achieved by the provision of a thin electric conductive sheet contained in the inner toroidal insulating channel. In a further embodiment of the invention, one part of each channel is formed with a lip around each edge to provide an overlapping joint between the two channel parts which can then be sealed with an adhesive.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB731672 | 1972-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1336976A true GB1336976A (en) | 1973-11-14 |
Family
ID=9830810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1336976D Expired GB1336976A (en) | 1972-02-17 | 1972-02-17 | Insulating toroidal transformers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1336976A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2197544A (en) * | 1986-11-18 | 1988-05-18 | Frank Charles Mose | Toroidal transformers |
-
1972
- 1972-02-17 GB GB1336976D patent/GB1336976A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2197544A (en) * | 1986-11-18 | 1988-05-18 | Frank Charles Mose | Toroidal transformers |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
PCNP | Patent ceased through non-payment of renewal fee |