Vacuum adiabatic body and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-12287142-B2
Application number	US-202118034934-A
Country	US
Kind code	B2
Filing date	Nov 1, 2021
Priority date	Nov 2, 2020
Publication date	Apr 29, 2025
Grant date	Apr 29, 2025

Abstract

A method for manufacturing a vacuum adiabatic body according to an embodiment may include a vacuum adiabatic body component preparation process of manufacturing components applied to a vacuum adiabatic body. Optionally, the method may include a vacuum adiabatic body component assembly process of assembling the components. Optionally, the method may include a vacuum adiabatic body component sealing process of sealing an outer wall of a vacuum space to block the vacuum space from the external space. Optionally, the method may include a vacuum exhaust process for a vacuum adiabatic body, in which internal air of a vacuum space is discharged. Optionally, the method may include a device assembling process of providing a device using the vacuum adiabatic body.

First claim

The invention claimed is:

1. A method for manufacturing a vacuum adiabatic body, the method comprising:
providing components included in the vacuum adiabatic body, the components including a first plate, a second plate, and a support;
assembling the components of the vacuum adiabatic body such that that a portion of the second plate is separated from the first plate in a first direction to provide space between the first plate and the second plate, and the support is positioned in the space between the first plate and the second plate; and
removing gas from the space between the first and second plates to form a vacuum space,
wherein:
the support is made of a resin,
the resin is a mixture of polyphenylenesulfide (PPS) and glassfiber (GF), and
a vacuum exhaust temperature when gas is removed from the space is 100° C. to 200° C.

2. The method according to claim 1 , wherein the vacuum exhaust temperature is 130° C. to 200° C.

3. The method according to claim 2 , wherein, in the mixture of PPS and GF, a weight ratio of GF is 10% to 60%.

4. The method according to claim 2 , wherein a thermal conductivity of the support is 0.7 W/mk or less.

5. The method according to claim 1 , wherein the vacuum exhaust temperature is 150° C. to 200° C.

6. The method according to claim 5 , wherein a weight ratio of the GF in the mixture of PPS and GF is 30% to 60%.

7. The method according to claim 5 , wherein, in the mixture of PPS and GF, a weight ratio of GF is 25% to 43%.

8. The method according to claim 7 , wherein a thermal conductivity of the support is 0.6 W/mk or less.

9. The method according to claim 1 , wherein a deformation rate of the support is 0.5% or less.

10. The method according to claim 1 , wherein the support includes a plurality of bars extending in a height direction of the vacuum space.

11. The method according to claim 1 , wherein a weight ratio of the GF in the mixture of PPS and GF is 30% to 60%.

12. A adiabatic body comprising:
a first plate;
a second plate separated from the first plate in a first direction to provide a vacuum space between the first plate and the second plate; and
a support provided between the first plate and the second plate; and
an insulating body contacting at least one of the first plate or the second plate;
wherein the support includes a mixture of polyphenylenesulfide (PPS) and glassfiber (GF).

13. The adiabatic body according to claim 12 , wherein, in the mixture of PPS and GF included in the support, a weight ratio of GF is 10% to 60%.

14. The adiabatic body according to claim 12 , wherein, in the mixture of PPS and GF included in the support, a weight ratio of GF is 25% to 43%.

15. The adiabatic body according to claim 12 , wherein the support is made of a material softer than that of the first plate and the second plate.

16. The adiabatic body according to claim 12 , wherein the support has a creep deformation rate is 0.5% or less.

17. The adiabatic body according to claim 15 , wherein a thermal conductivity of the support is 0.6 W/mk or less.

18. The adiabatic body according to claim 12 , wherein a weight ratio of the GF in the mixture of PPS and GF included in the support is 30% to 60%.

19. A adiabatic body comprising:
a first plate;
a second plate separated from the first plate in a first direction to provide a vacuum space between the first plate and the second plate; and
a support accommodated in the space between the first plate and the second plate;
wherein a thermal conductivity of the support is 0.6 W/mk or less, and
wherein the support includes a mixture of polyphenylenesulfide (PPS) and glassfiber (GF), and a weight ratio of GF is 10% to 60%.

20. The vacuum adiabatic body according to claim 19 , wherein support is in contact with at least one of the first plate or the second plate.

Assignees

• Lg Electronics Inc

Inventors

• Jung Wonyeong
• Youn Deokhyun
• Lee Sungsub

Classifications

• Y02B80/10

  Insulation, e.g. vacuum or aerogel insulation · CPC title

• Y02A30/242

  Slab shaped vacuum insulation · CPC title

• F25D2201/14

  using subatmospheric pressure · CPC title

• F16L59/065 Primary

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

• B29L2022/00

  Hollow articles (tubular articles B29L2023/00; pneumatic tyres B29L2030/00) · CPC title