Vacuum adiabatic body

Patent metadata

Field	Value
Publication number	US-2023417479-A1
Application number	US-202118034825-A
Country	US
Kind code	A1
Filing date	Nov 1, 2021
Priority date	Nov 2, 2020
Publication date	Dec 28, 2023
Grant date	—

Abstract

A vacuum adiabatic body according to an embodiment may include a first plate, a second plate, and a seal that seals a gap between the first plate and the second plate. Optionally, the vacuum adiabatic body according to an embodiment may include a support that maintains a vacuum space. Optionally, the vacuum adiabatic body according to an embodiment may include a heat transfer resistor that reduces an amount of heat transfer between the first plate and the second plate. Optionally, the vacuum adiabatic body may include a component coupling portion connected to at least one of the first or second plate so that a component is coupled thereto. Optionally, the vacuum adiabatic body may include a tube provided as a tube passing through the first plate. Optionally, the vacuum adiabatic body may include a flange provided on the first plate to guide the tube. The tube may perform functions of exhaust and getter necessary for an operation of the vacuum adiabatic body. Examples of the aforementioned tube may be ports such as an exhaust port or a getter port.

First claim

1 . A vacuum adiabatic body comprising:
a first plate; a second plate, a vacuum space being provided between the first plate and the second plate; and a through-hole and a tube provided at a portion of the first plate, wherein:
the tube includes an inner tube provided in the vacuum space between the first plate and the second plate, and an outer tube provided outside of the vacuum space between the first plate and the second plate, and
the inner tube includes a first end connected to the through-hole, and a second end positioned so as not to be in contact with the first and second plates.

2 . The vacuum adiabatic body according to claim 1 , wherein a section of the tube has a degree of deformation resistance that is greater than that of the first plate.

3 . The vacuum adiabatic body according to claim 2 , wherein the deformation resistance is generated by a vacuum pressure provided while gas is being exhausted from the space between the first and second plates.

4 . The vacuum adiabatic body according to claim 2 , wherein the section of the tube includes a material softer than included in the first plate.

5 . The vacuum adiabatic body according to claim 2 , wherein the section of the tube has a thickness less than that of the first plate.

6 . A vacuum adiabatic body comprising:
a first plate; a second plate, a vacuum space being-provided between the first plate and the second plate; a through-hole and a tube provided at a portion of the first plate; and a curved wall configured to define the through-hole.

7 . The vacuum adiabatic body according to claim 6 , wherein the curved wall is provided on at least one of the first plate or the tube.

8 . The vacuum adiabatic body according to claim 7 , wherein the curved wall is positioned to surround the through-hole.

9 . The vacuum adiabatic body according to claim 7 , wherein the curved wall has a first end connected to the first plate and a second end positioned so as not to be in contact with second plate.

10 . The vacuum adiabatic body according to claim 6 ,
wherein the curved wall is provided on the first plate, and wherein the curved wall includes a first section and a second section, the second section being connected to a non-curved region of the first plate, and the first section having a curvature radius less than that of the second section.

11 . The vacuum adiabatic body according to claim 10 , wherein the the curved wall is provided at a region of the first plate that is relatively thinner than other regions of the first plate.

12 . The vacuum adiabatic body according to claim 10 , wherein the second curved section is formed before gas is discharged from the space between the first and second plates.

13 . The vacuum adiabatic body according to claim 6 , wherein the through-hole is formed and the tube is received in the through-hole before gas is discharged from the space between the first and second plates.

14 . The vacuum adiabatic body according to claim 13 , wherein, after the through-hole is formed, at least one of:
the curved wall is formed at the first plate or the tube, or a sealed portion is formed between the first plate and the tube.

15 . The vacuum adiabatic body according to claim 13 , wherein, after the curved wall is formed and the tube is received in the through-hole, a gap between the first plate and the tube is sealed.

16 . A vacuum adiabatic body comprising:
a first plate; a second plate, a vacuum space being provided between the first plate and the second space; a seal configured to seal between the first plate and the second plate so as to provide the vacuum space; and a through-hole and a tube provided at a portion of the first plate, wherein the seal includes a curved wall provided between the through-hole and the tube.

17 . The vacuum adiabatic body according to claim 16 , wherein, before gas is discharged from the space between the first and second plates, the curved wall is welded to at least one of the first plate or the tube.

18 . The vacuum adiabatic body according to claim 16 , wherein the seal is provided on an edge of the tube, and the edge of the tube is provided away from a region between the through-hole and the tube.

19 . The vacuum adiabatic body according to claim 18 , wherein, after gas is discharged from the space between the first and second plates, the edge of the tube is sealed by pressure welding.

20 . The vacuum adiabatic body according to claim 18 , wherein, before gas is discharged from the space between the first and second plates, the curved wall is sealed to the first plate, and
after the gas is discharged from the space between the first and second plates, the edge of the tube is sealed.

Assignees

• Lg Electronics Inc

Inventors

• Jung Wonyeong
• Youn Deokhyun
• Lee Sungsub

Classifications

• F25D23/062 Primary

  defining a cabinet · CPC title

• F16L59/065 Primary

  using vacuum (F16L59/075 takes precedence) · CPC title

• B32B3/266

  characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12 · CPC title

• B32B5/18

  characterised by features of a layer {of} foamed material · CPC title

• B32B15/046

  of foam · CPC title