Thermal protector

A thermal protector comprising:

• a base member which is configured with a resin having electric insulation and thermal plasticity;
• a cover member which is configured with a resin having electric insulation, is mounted on the base member, and forms a housing space between the cover member and the base member;
• a stationary contact and a movable contact which are provided in the housing space;
• a fixing member which is provided with the stationary contact and is fixed to the base member;
• a movable member which is provided with the movable contact, is configured to be deformable in the housing space, and exerts force in a direction, in which the movable contact contacts with the stationary contact, on the movable contact;
• and
• a thermally actuated element which is housed in the housing space, performs a deformation operation by receiving heat, and exerts force in a direction, in which the movable contact moves apart from the stationary contact, on the movable member,
• wherein the base member has a protrusion portion which is provided in the base member and protrudes from a surface of the base member,
• wherein the cover member has a through hole portion which is formed in a position corresponding to the protrusion portion and is formed to pass through the cover member, and
• wherein the base member and the cover member are fixed to each other by formation of a thermal caulking portion, for which thermal caulking is carried out, in a protruding portion, the protruding portion being the protrusion portion which is caused to pass through the through hole portion and protrudes to an outside of the cover member.