High-temperature intake / exhaust device of refrigerator freezer

摘要

More particularly, the present invention relates to a high-temperature intake air interrupting device for preventing the introduction of high-temperature intake air into a freezer compartment of a refrigerator, A diaphragm 60 which is deformed in one direction in accordance with the temperature is installed on the inner circulation passage introduced into the freezer compartment 10 through the cool air discharge port 22 so as to protrude inward in the lateral direction from both side walls of the circulation passage The diaphragm 60 has a structure in which a plurality of frames 62 made of a shape memory alloy are molded in the transverse direction and the frame 60 of the diaphragm 60 62 are thermally expanded and maintained in a horizontal state to expand the diaphragm 60 molded on the outer side thereof to block the circulation passage to block the intake of high temperature intake air into the freezing chamber 10. [