JPS644006A - Resin-molded coil - Google Patents
Resin-molded coilInfo
- Publication number
- JPS644006A JPS644006A JP62157634A JP15763487A JPS644006A JP S644006 A JPS644006 A JP S644006A JP 62157634 A JP62157634 A JP 62157634A JP 15763487 A JP15763487 A JP 15763487A JP S644006 A JPS644006 A JP S644006A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- permittivity
- primary coil
- secondary coil
- resin
- 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
Landscapes
- Insulating Of Coils (AREA)
Abstract
PURPOSE:To improve the insulating performance between a primary coil and a secondary coil and to realize a small-sized coil by a method wherein a spacer piece is installed between the primary coil and the secondary coil and the spacer piece is composed of an insulating material whose permittivity is close to the permittivity of air. CONSTITUTION:For a resin molded coil 1, a primary coil 2 used as a high- voltage coil is wound at the outside of a secondary coil 3 used as a low-voltage coil, and rod ducts 4 as spacer pieces are installed between the primary coil 2 and the secondary coil 3. The rod ducts 4 are composed of an insulating material whose permittivity is close to the permittivity of the air. The spacer pieces are formed by a resin 14; nearly spherical and fine hollow substances 12 as fillers composed of glass are mixed with an epoxy resin 10. Because a number of gaps composed of the fine hollow substances 12 are contained inside the rod ducts 4, an electric field is divided nearly equally into a number of gaps formed by the fine hollow substances 12 and voids even when the voids are produced at contact faces between the rod ducts 4 and the primary coil 2 and the secondary coil 3. Accordingly, it is possible to prevent the electric field from being concentrated on the voids.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157634A JPH0666203B2 (en) | 1987-06-26 | 1987-06-26 | Resin mold coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157634A JPH0666203B2 (en) | 1987-06-26 | 1987-06-26 | Resin mold coil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS644006A true JPS644006A (en) | 1989-01-09 |
JPH0666203B2 JPH0666203B2 (en) | 1994-08-24 |
Family
ID=15654007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62157634A Expired - Lifetime JPH0666203B2 (en) | 1987-06-26 | 1987-06-26 | Resin mold coil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0666203B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007157987A (en) * | 2005-12-05 | 2007-06-21 | Aichi Electric Co Ltd | Transformer winding |
JP2008021790A (en) * | 2006-07-12 | 2008-01-31 | Mitsubishi Electric Corp | Resin mold transformer |
JP2008066564A (en) * | 2006-09-08 | 2008-03-21 | Mitsubishi Electric Corp | Resin mold transformer |
JP2009026951A (en) * | 2007-07-19 | 2009-02-05 | Mitsubishi Electric Corp | Molded coil |
WO2023042256A1 (en) * | 2021-09-14 | 2023-03-23 | 三菱電機株式会社 | Stationary inductor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS549791A (en) * | 1977-06-23 | 1979-01-24 | Mitsubishi Electric Corp | Production of molded electric apparatus |
JPS58123704A (en) * | 1982-01-20 | 1983-07-23 | Toshiba Corp | Molded coil impregnated with resin |
-
1987
- 1987-06-26 JP JP62157634A patent/JPH0666203B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS549791A (en) * | 1977-06-23 | 1979-01-24 | Mitsubishi Electric Corp | Production of molded electric apparatus |
JPS58123704A (en) * | 1982-01-20 | 1983-07-23 | Toshiba Corp | Molded coil impregnated with resin |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007157987A (en) * | 2005-12-05 | 2007-06-21 | Aichi Electric Co Ltd | Transformer winding |
JP2008021790A (en) * | 2006-07-12 | 2008-01-31 | Mitsubishi Electric Corp | Resin mold transformer |
JP2008066564A (en) * | 2006-09-08 | 2008-03-21 | Mitsubishi Electric Corp | Resin mold transformer |
JP2009026951A (en) * | 2007-07-19 | 2009-02-05 | Mitsubishi Electric Corp | Molded coil |
WO2023042256A1 (en) * | 2021-09-14 | 2023-03-23 | 三菱電機株式会社 | Stationary inductor |
Also Published As
Publication number | Publication date |
---|---|
JPH0666203B2 (en) | 1994-08-24 |
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