Thermomagnetic release mounting structure of molded case circuit breaker

The utility model discloses a thermomagnetic release mounting structure of a molded case circuit breaker, which comprises a thermal element, a bimetallic strip, an armature component and a positioning iron core, and is characterized in that the thermal element is fixed in an accommodating groove of a base through a supporting piece; the bimetallic strip is arranged on the side face of one side of the thermal element, the positioning iron core is arranged on the side face of the other side of the thermal element and provided with two positioning supporting feet extending towards the lower portion of the thermal element, a limiting groove structure is arranged between the containing groove and the two positioning supporting feet, and the two positioning supporting feet are matched with the limiting groove structure in an inserted mode. By adopting the design of the scheme, the installation height of the thermal element and the bimetallic strip is increased through the supporting piece, the installation length o