Heating unit including cable guide for restricting temperature sensor cables from contacting holder that supports heater

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;
• 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 temperature sensing element comprises a thermistor and a thermostat,
• wherein the heater further includes a terminal electrically connected to the resistance heating element for supplying power thereto,
• wherein the cable comprises:
• a thermistor cable connected to the thermistor, the thermistor cable extending toward one side in the long-side direction from the thermistor;
• and
• a thermostat cable connected to the thermostat, the thermostat cable extending toward another side in the long-side direction from the thermostat, and
• wherein the terminal is positioned at an end of the heater at the another side in the long-side direction.

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;
• 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,
• the heating unit further comprising a stay supporting the holder and having a higher rigidity than the holder, the stay being positioned opposite the heater with respect to the holder in the thickness direction,
• wherein the cable guide includes a stay abutment part protruding toward the stay in the thickness direction and configured to abut on the stay in the thickness direction.