US 12,372,904 B2
Heating unit including cable guide for restricting temperature sensor cables from contacting holder that supports heater
Yuichi Ikeno, Maibara (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Jan. 10, 2024, as Appl. No. 18/408,711.
Claims priority of application No. 2023-030316 (JP), filed on Feb. 28, 2023.
Prior Publication US 2024/0288808 A1, Aug. 29, 2024
Int. Cl. G03G 15/20 (2006.01); H05B 1/02 (2006.01)
CPC G03G 15/2053 (2013.01) [G03G 15/2017 (2013.01); G03G 15/2039 (2013.01); H05B 1/0241 (2013.01); G03G 2215/2035 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A heating unit comprising:
a heater having a first surface and a second surface opposite each other, the heater including:
a base plate elongated in a long-side direction and having a thickness in a thickness direction perpendicular to the second surface; and
a resistance heating element provided on the base plate, the resistance heating element being provided to extend in a heat-generating region in the long-side direction;
an endless belt circularly movable around the heater, the endless belt having an inner peripheral surface in contact with the first surface of the heater;
a temperature sensing element configured to detect a temperature of the heater and arranged to face the second surface of the heater in the thickness direction;
a cable connected to the temperature sensing element;
a holder holding the heater and the temperature sensing element, the holder including a support wall supporting the second surface of the heater; and
a cable guide holding the cable, the cable guide including a partitioning wall positioned between at least a part of the cable and the support wall in the thickness direction,
wherein the cable guide has two end portions, both in the long-side direction, both end portions being positioned outside of the heat-generating region in the long-side direction.