DOOR ASSEMBLY INCLUDING FIRST GLASS, SECOND AND THIRD GLASSES, FRAME, SEAL PLATE, AND BRACKET ASSEMBLY

摘要

PURPOSE: A door assembly is provided to facilitate assembling and to improve cleaning performance, by welding a bracket to the inside of a seal plate and forming a burring hole in the bracket and then fastening a screw. CONSTITUTION: A door assembly(30) comprises a first glass(31) constituting the front to enable a user to see through the inside of the cavity; second and third glasses(32,33) successively installed to the rear of the first glass as multiplex shielding structure; a seal plate(35) installed to the rear of the third glass to support the third glass; and a bracket assembly including a bracket(37a) and a screw(37). The bracket is welded to the inside of the seal plate to combine the seal plate and a frame(36a). A burring hole is formed in the bracket. The screw is fastened to the burring hole of the bracket.