GB677051A - Improvements in or relating to transformers or inductance coils - Google Patents
Improvements in or relating to transformers or inductance coilsInfo
- Publication number
- GB677051A GB677051A GB30756/50A GB3075650A GB677051A GB 677051 A GB677051 A GB 677051A GB 30756/50 A GB30756/50 A GB 30756/50A GB 3075650 A GB3075650 A GB 3075650A GB 677051 A GB677051 A GB 677051A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gap
- magnetic material
- limb
- core
- transformers
- 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
- 239000000696 magnetic material Substances 0.000 abstract 4
- 230000002238 attenuated effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
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
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
677,051. Transformers and inductances. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 18, 1950 [Dec. 21, 1949], No, 30756/50. Class 38 (ii). A transformer or inductance coil 8 of the core type having a gap 9 in one limb 4<SP>1</SP>, 4<SP>11</SP> and non-magnetic material 10 in the gap is characterized in that the resultants of the reactive forces exerted by the non-magnetic material 10 upon the two portions of the limb 41, 411 bounding the gap 9 act on points in the plane through the centre lines of the limbs 3, 4<SP>1</SP>, 4<SP>11</SP>, the points being shifted by a distance " d " from the centre line of the limb 4<SP>1</SP>, 4<SP>11</SP> in a direction remote from the window enclosed by the core. By such a construction the amplitude of the core vibrations-due to the alternating current in the coil 8-may be attenuated, the distance " d " to give minimum amplitude being determined experimentally. The non-magnetic material may be of various shapes and need not be homogeneous in the direction of the lines of force in the gap. If two separate pieces of non- magnetic material are placed in the gap that nearest the window is preferably of a material mechanically less rigid than the other.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL677051X | 1949-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB677051A true GB677051A (en) | 1952-08-06 |
Family
ID=19802320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30756/50A Expired GB677051A (en) | 1949-12-21 | 1950-12-18 | Improvements in or relating to transformers or inductance coils |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB677051A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546753A (en) * | 1982-08-11 | 1985-10-15 | Ducellier & Cie | Ignition coil for internal combustion engines |
| CN101950651B (en) * | 2009-07-10 | 2012-07-25 | 美桀电子科技(深圳)有限公司 | Inductance assembly with gap and manufacturing method thereof |
-
1950
- 1950-12-18 GB GB30756/50A patent/GB677051A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546753A (en) * | 1982-08-11 | 1985-10-15 | Ducellier & Cie | Ignition coil for internal combustion engines |
| CN101950651B (en) * | 2009-07-10 | 2012-07-25 | 美桀电子科技(深圳)有限公司 | Inductance assembly with gap and manufacturing method thereof |
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