Vacuum adiabatic body and refrigerator
AssigneeLG Electronics Inc.
InventorsSol HAN, Daewoong KIM, Wonyeong JUNG, Jangseok LEE
Life of this patent
Estimating the term…
Abstract
Provided is a vacuum adiabatic body. The vacuum adiabatic body includes a supporting unit configured to maintain a vacuum space part. The supporting unit includes a plurality of bars extending in a vertical direction between the first plate member and the second plate member. When a pitch of the bar is a, an elastic modulus of a material forming the bar is E. and a radius of a long axis is n and a radius of a short axis is m when a cross-section of the bar has an elliptical shape is n, the following equation: is satisfied.
Claims21
A vacuum adiabatic body comprising:
- a first plate configured to define at least a portion of a wall for a first space;
- a second plate configured to define at least a portion of a wall for a second space;
- a third space provided between the first plate and the second plate and configured as a vacuum space;
- and
- a plurality of bars provided in the third space and configured to maintain a distance between the first plate and the second plate,
- wherein an equation:
- 1.0354
- <
- Em
- 3
-
- n
- a
- 2
- <
- 188.2097
- is satisfied by the plurality of bars, and
- wherein:
- a is a distance between two adjacent ones of the bars,
- E is an elastic modulus of a material forming the bars,
- n is a radius of a long axis of a cross-section shape of the bars, and
- m is a radius of a short axis of the cross-section shape of the bars.
A vacuum adiabatic body comprising:
- a first plate configured to define at least a portion of a wall for a first space;
- a second plate configured to define at least a portion of a wall for a second space;
- a third space provided between the first plate and the second plate and configured as a vacuum space;
- and
- a plurality of bars provided in the third space and configured to maintain a distance between the first plate and the second plate, the two adjacent ones of the bars being separated by a distance (a)
- wherein:
- a square of the distance (a) between the two adjacent bars changes in proportion to a square root of a pressure applied to at least one of the first plate or the second plate, and
- the distance (a) between two adjacent bars changes in inverse proportion to a length (L) of the bar.
A refrigerator comprising:
- a main body having a vacuum adiabatic body to form an internal space configured to store items;
- a door provided to open and close the main body to allow access to the inner space from an external space;
- a compressor configured to compress a refrigerant;
- a condenser configured to condense the compressed refrigerant;
- an expansion device configured to expand the condensed refrigerant;
- and
- an evaporator configured to evaporate the expanded refrigerant so as to dissipate heat,
- wherein the vacuum adiabatic body includes:
- a first plate configured to define at least a portion of a wall for the internal space;
- a second plate configured to define at least a portion of a wall for the external space;
- a vacuum space provided between the first plate and the second plate;
- a plurality of bars provided in the vacuum space and configured to maintain a distance between the first plate and the second plate,
- wherein the vacuum space has a pressure of 8.3×10−2 Torr to 9.9×10−9 Torr,
- wherein a first equation:
- 1.0354
- <
- Em
- 3
-
- n
- a
- 2
- <
- 188.2097
- is satisfied by the bars, and
- wherein:
- a is a distance between two adjacent ones of the bars,
- E is an elastic modulus of a material forming the bars,
- n is a radius of a long axis of a cross-section shape of the bars, and
- m is a radius of a short axis of the cross-section shape of the bars.
Dependencies are inferred from the claim text.