EP0505947A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Transformer for gas discharge lamps
Assignee: Sanyo Electric Co Ltd
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Filing: 1992-03-20
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Granted: —
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Expires: 2012-03-20
Abstract
Abstract A low-voltage winding and a high-voltage winding are wound on a main iron core (11). Between these low-voltage and high-voltage windings, a leakage iron core is interpositioned. A minimum of 5 flanges (22) is formed integratedly on a bobbin (15) of the high-voltage winding , in equal intervals. Between these flanges, the high-voltage winding is wound in split sections. Thus, the number of connectable back border tubes can be increased by one or more from that with a conventional transformer of a non-split type winding. <IMAGE>
Inventors
- 👤 Shintetsu Amano
- 👤 Isao Hori
- 👤 Fumio Ichimiya
- 👤 Toshihiro Matsui
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 06:06
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/08; H01F38/10; H01F27/00; H05; H05B; H05B41/00; H05B41/14; H05B41/26; H05B41/28; H05B41/282; H05B41/2821; H05B41/2822
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
A transformer for gas tube sign comprising: a main iron core, a low-voltage winding and a high-voltage winding that are wound on said main iron core, and a leakage iron core disposed between said low-voltage winding and said high-voltage winding, wherein a high voltage of about 8,000 V or higher is obtained between output terminals of said high-voltage winding between which is to be connected a gas tube with a neon gas charged and, when said output terminals are shorted, an output current of about 20 mA or more is obtained, characterized in that said high-voltage winding is wound in four or more split sections without intercalating any interlayer paper.
Claim 2
Dependent Claim
110 words
A transformer for gas tube sign comprising: a main iron core, a low-voltage winding and a high-voltage winding that are wound on said main iron core, and a leakage iron core disposed between said low-voltage winding and said high-voltage winding, wherein a high voltage of about 6,000 V of higher is obtained between output terminals of said high-voltage winding between which is to be connected a gas tube with a neon gas charged and, when said output terminals are shorted, an output current of about 30 mA or more is obtained, characterized in that said high-voltage winding is wound in four or more split sections without intercalating any interlayer paper.
Claim 3
Dependent Claim
102 words
A transformer for gas tube sign comprising: a main iron core, a low-voltage winding and a high-voltage winding that are wound on said high-voltage winding, wherein a high voltage of about 5,000 V or higher is obtained between output terminals of said high-voltage winding between which is to be connected a gas tube with an argon gas and a very small quantity of mercury charged and, when said output terminals are shorted, an output current of about 20 mA or more is obtained, characterized in that said high-voltage winding is wound in four or more split sections without intercalating any interlayer paper.
Claim 4
Dependent Claim
102 words
A transformer for gas tube sign comprising: a main iron core, a low-voltage winding and a high-voltage winding that are wound on said high-voltage winding, wherein a high voltage of about 4,000 V or higher is obtained between output terminals of said high-voltage winding between which is to be connected a gas tube with an argon gas and a very small quantity of mercury charged and, when said output terminals are shorted, an output current of about 30 mA or more is obtained, characterized in that said high-voltage winding is wound in four or more split sections without intercalating any interlayer paper.
Claim 5
Dependent Claim
85 words
The transformer of any one of Claim 1, 2, 3 or 4, wherein said high-voltage winding is wound on a coil bobbin comprising a cylindrical drum and a plurality of flanges disposed in an axial direction on an outer periphery of said drum, said flanges split said high-voltage winding which is wound on said drum, and an elevated or recessed compound impregnation accelerating portion is formed on plate surfaces of said flanges in such a range as from the outer fringes thereof to said drum.
Claim 6
Dependent Claim
22 words
The transformer of Claim 5, wherein said compound impregnation accelerating portion is formed by extending on a peripheral surface of said drum.
References Cited (Backward Citations)
No citation records indexed.
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