| 摘要 |
PURPOSE: An air pressure control device for a freezer is provided to control internal air pressure and external air pressure uniformly using a rotating unit fixed on the upper part of a magnet by magnetic force. CONSTITUTION: An air pressure control device for a freezer comprises a grill(10), a case(20), a fixing member(30), and a rotating unit(40). The case seals the inside of the grill. A magnet is installed inside of the fixing member. The rotating unit seals the inside of the fixing member. A support plate(45) is fixed on the rear surface of a sealing member(44) by fastening bolts. |
