	US 12,345,472 B2
	Heater
Kei Ishida, Inuyama (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by Brother Kogyo Kabushiki Kaisha, Nagoya (JP)
Filed on Jul. 1, 2020, as Appl. No. 16/918,081.
Claims priority of application No. 2019-126446 (JP), filed on Jul. 5, 2019.
Prior Publication US 2021/0003348 A1, Jan. 7, 2021
Int. Cl. F28D 1/03 (2006.01); B41J 2/335 (2006.01); B41J 2/345 (2006.01); F28F 3/02 (2006.01)

CPC F28D 1/0325 (2013.01) [B41J 2/335 (2013.01); B41J 2/33515 (2013.01); B41J 2/3354 (2013.01); B41J 2/3357 (2013.01); B41J 2/345 (2013.01); F28F 3/025 (2013.01)]

15 Claims

1. A heater, comprising:

a substrate comprising a first surface and a second surface located opposite to the first surface relative to the substrate;

a first heating pattern constituted by a heating resistor and disposed on a first-surface side of the substrate;

a second heating pattern constituted by a heating resistor, disposed on the first-surface side of the substrate, and located at a position that is different from a position of the first heating pattern in a longitudinal direction of the substrate;

a first terminal to which electricity is to be supplied, the first terminal being disposed such that the second heating pattern is interposed between the first terminal and the first heating pattern in the longitudinal direction of the substrate;

a first power-supply pattern electrically connecting the first terminal and the first heating pattern to each other and disposed on a second-surface side of the substrate; and

a first electrical connector extending through the substrate and electrically connecting the first power-supply pattern and the first heating pattern to each other,

wherein the first heating pattern and the second heating pattern each comprise

a first portion extending in a first direction, and

a second portion extending in a second direction different from the first direction,

wherein the first electrical connector is located on an inner side of an outermost portion of the first heating pattern in a widthwise direction of the substrate that is orthogonal to the longitudinal direction and parallel to the first surface of the substrate,

wherein the first electrical connector is disposed such that the second heating pattern is interposed between the first electrical connector and the first terminal in the longitudinal direction,

wherein the first electrical connector is located between a first outermost portion of the first heating pattern and a second outermost portion of the first heating pattern in the widthwise direction, the first outermost portion of the first heating pattern being closer to a first end of the substrate than to a second end of the substrate in the widthwise direction, the second outermost portion of the first heating pattern in the widthwise direction being closer to the second end of the substrate than to the first end of the substrate in the widthwise direction,

wherein the first heating pattern includes:

a first heating line extending in the widthwise direction of the substrate;

a second heating line extending in the widthwise direction of the substrate and spaced away from the first heating line in the longitudinal direction of the substrate;

a third heating line extending in the longitudinal direction of the substrate; and

a fourth heating line extending in the longitudinal direction of the substrate and spaced away from the third heating line in the widthwise direction of the substrate, and

wherein the first electrical connector is located between the first heating line and the second heating line, the first electrical connector being located between the third heating line and the fourth heating line.