US 12,253,300 B2
Vacuum adiabatic body and method for manufacturing the refrigerator
Wonyeong Jung, Seoul (KR); Deokhyun Youn, Seoul (KR); and Duchan Ki, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/034,864
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Nov. 1, 2021, PCT No. PCT/KR2021/015499
§ 371(c)(1), (2) Date May 1, 2023,
PCT Pub. No. WO2022/092930, PCT Pub. Date May 5, 2022.
Claims priority of application No. 10-2020-0144805 (KR), filed on Nov. 2, 2020.
Prior Publication US 2024/0019196 A1, Jan. 18, 2024
Int. Cl. F16L 59/065 (2006.01); F16L 59/08 (2006.01); F25D 23/02 (2006.01); F25D 23/06 (2006.01)
CPC F25D 23/063 (2013.01) [F16L 59/065 (2013.01); F16L 59/08 (2013.01); F25D 23/028 (2013.01); F25D 23/064 (2013.01); F25D 2201/12 (2013.01); F25D 2201/14 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for manufacturing an adiabatic body, the method comprising:
providing components of the adiabatic body, the components including a first plate, a second plate, and an outer panel, at least one of a first plate or the second plate being coupled to a tube;
assembling the first and second plates such that a space is defined between the first plate and the second plates;
discharging internal air of the space between the first plate and the second plate through the tube to form a vacuum space; and
assembling the outer panel to the assembled first and second plates,
wherein the outer panel provides a space to accommodate another adiabatic body to insulate a peripheral portion of the assembled first and second plates,
wherein the discharging of the internal air is performed while the assembled first and second plates are accommodated in an exhaust device, the exhaust device having an exhaust passage in which the tube is coupled to a pump to exhaust the internal air, and
wherein an exhaust heater is provided in the exhaust device, such that that the exhaust passage heats the assembled first and second plates in the exhaust device and the assembled first and second plates are heated to be increased in outgassing rate.