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US 12,193,146 B2Granted
Heater including flexible printed wiring board and method for manufacturing same
AssigneeMektec Corporation
InventorsShunsuke Aoyama, Kenji Kiya
Life of this patent
Estimating the term…
Abstract
A heater includes: a flexible printed wiring board including a base film and a metal foil provided on one side of the base film; a heater circuit portion that is formed from the metal foil and generates heat when energized; and a heat conductive foil portion that is formed from the metal foil at a position away from the heater circuit portion and is maintained in a non-energized state.
Claims14
A heater comprising:
- a flexible printed wiring board including a base film and a metal foil provided on one side of the base film;
- a heater circuit portion that is formed from the metal foil and generates heat when energized;
- and
- a heat conductive foil portion that is formed from the metal foil at a position away from the heater circuit portion and is maintained in a non-energized state;
- wherein the heater circuit portion includes a heater wire that meanders in repeating patterns arranged in several adjacent rows, each row comprising a plurality of the repeating patterns;
- and
- wherein the heat conductive foil portion is disposed between the rows or between adjacent ones of the repeating patterns.
4 more elements
A heater comprising:
- a flexible printed wiring board including a base film and a metal foil provided on one side of the base film;
- a heater circuit portion including a continuous heater wire formed from the metal foil;
- and
- a connecting portion that is formed from the metal foil and short-circuits adjacent portions of the continuous heater wire, wherein
- the heater circuit portion comprises:
- a heat generating portion with a large amount of heat generated by energization;
- and
- a heat conductive foil portion with a small amount of heat generated by energization but exhibiting a heat transfer function;
- and
- the heat conductive foil portion includes the connection portion.
7 more elements
A method for manufacturing a heater including a flexible printed wiring board, comprising:
- forming from a part of a metal foil a heater circuit portion that generates heat when energized and a heat conductive foil portion that is maintained in a non-energized state, by etching a material including a base film and the metal foil provided on one side of the base film;
- and
- providing a cover film covering a surface of the metal foil after the etching;
- wherein forming the heater circuit portion includes forming a heater wire that meanders in repeating patterns arranged in several adjacent rows, each row comprising a plurality of the repeating patterns;
- and
- wherein forming the heat conductive foil portion includes forming the heat conductive foil portion between the rows or between adjacent ones of the repeating patterns.
3 more elements
A method for manufacturing a heater including a flexible printed wiring board, comprising:
- forming from a part of a metal foil a heater circuit portion including a continuous heater wire and a connecting portion that short-circuits adjacent portions of the continuous heater wire, by etching a material including a base film and the metal foil provided on one side of the base film;
- and
- providing a cover film covering a surface of the metal foil after the etching.
Dependencies are inferred from the claim text.