GB1076365A - A miniature low frequency transformer - Google Patents
A miniature low frequency transformerInfo
- Publication number
- GB1076365A GB1076365A GB49031/65A GB4903165A GB1076365A GB 1076365 A GB1076365 A GB 1076365A GB 49031/65 A GB49031/65 A GB 49031/65A GB 4903165 A GB4903165 A GB 4903165A GB 1076365 A GB1076365 A GB 1076365A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bobbin
- flanges
- coil
- secured
- terminal plate
- 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 2
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 229910000889 permalloy Inorganic materials 0.000 abstract 1
- 239000005011 phenolic resin Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/043—Fixed inductances of the signal type with magnetic core with two, usually identical or nearly identical parts enclosing completely the coil (pot cores)
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F19/00—Fixed transformers or mutual inductances of the signal type
-
- 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
- H01F27/02—Casings
- H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Insulating Of Coils (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
1,076,365. Transformer. SANSUI ELECTRIC CO. Ltd. Nov. 18, 1965 [April 8, 1965], No. 49031/65. Heading H1T. A low-frequency miniature transformer comprises an outer box-like core 43 (Fig. 13) of magnetic material (e.g. permalloy or chromium-iron alloy) which contains a tubular bobbin 37 of magnetic material, whose end flanges are formed from the tube of the bobbin, and which makes close magnetic contact with two opposing inner walls of the box 43 through the flanges. The cylinder and inside flange surfaces of the bobbin are coated or taped with insulating material then the coil 50 is wound on to the bobbin and the leads 51 to 55 connected to respective terminals 57 to 62 of the terminal plate 56 of phenol resin. The coil 50 is secured to the terminal plate 56 at the recess 63 and secured in the outer core 43 at the outside flange surfaces. The bobbin is slit in an axial direction and the flanges are provided with a plurality of radial slits to reduce eddy currents. The bobbin may have one, three or four flange segments (Figs. 5 to 8, not shown), or may be made of ferrite as a solid cylinder with disc flanges (Fig. 9, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2072565 | 1965-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1076365A true GB1076365A (en) | 1967-07-19 |
Family
ID=12035135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49031/65A Expired GB1076365A (en) | 1965-04-08 | 1965-11-18 | A miniature low frequency transformer |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3358256A (en) |
| FR (1) | FR1462618A (en) |
| GB (1) | GB1076365A (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE331717B (en) * | 1970-02-23 | 1971-01-11 | Ericsson Telefon Ab L M | |
| US4100520A (en) * | 1974-07-28 | 1978-07-11 | Ben-Gurion University Of The Negev Research And Development Authority | Devices for controlling A.C. motors |
| US4514693A (en) * | 1977-12-27 | 1985-04-30 | Texaco Inc. | Dielectric well logging system with electrostatically shielded coils |
| DE2817184C3 (en) * | 1978-04-20 | 1981-03-19 | Draloric Electronic GmbH, 8500 Nürnberg | Inductance |
| US4684882A (en) * | 1983-02-18 | 1987-08-04 | Blain Aurele J | Electrical transformer having a solid core surrounding winding in a loop configuration |
| US4656450A (en) * | 1986-05-12 | 1987-04-07 | Northern Telecom Limited | Transformer and ferrite core structure therefor |
| US5028905A (en) * | 1990-07-23 | 1991-07-02 | Zenith Electronics Corporation | High voltage coil having split plastic tubes |
| US5198790A (en) * | 1992-04-27 | 1993-03-30 | Toledo Commutator Co. | Electrical transducer |
| TW200847199A (en) * | 2007-05-29 | 2008-12-01 | Delta Electronics Inc | Package structure for an inductance element |
| US7696850B2 (en) * | 2007-11-08 | 2010-04-13 | Triasx Pty Ltd. | Apparatus for applying a load |
| TWM361697U (en) * | 2009-01-23 | 2009-07-21 | Chilisin Electronics Corp | Inductor and core thereof |
| USD656240S1 (en) * | 2010-07-07 | 2012-03-20 | Apple Inc. | Building |
| USD668131S1 (en) * | 2010-08-27 | 2012-10-02 | Nitto Denko Corporation | Winding core |
| JP5965741B2 (en) * | 2012-06-26 | 2016-08-10 | オリンパス株式会社 | Medical wireless power supply system |
| USD841452S1 (en) * | 2016-06-10 | 2019-02-26 | Douglas Swain Conselvan | Tube restoring device |
| CN108987038B (en) * | 2017-05-31 | 2021-11-26 | 台达电子工业股份有限公司 | Magnetic assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2775742A (en) * | 1952-03-06 | 1956-12-25 | Etc Inc | Electromagnet coil assembly |
| US2949591A (en) * | 1955-10-10 | 1960-08-16 | United Transformer Corp | Miniature inductive devices |
-
1965
- 1965-10-22 US US501911A patent/US3358256A/en not_active Expired - Lifetime
- 1965-11-18 GB GB49031/65A patent/GB1076365A/en not_active Expired
- 1965-12-28 FR FR44043A patent/FR1462618A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3358256A (en) | 1967-12-12 |
| FR1462618A (en) | 1966-12-16 |
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