Patent ID: 11953260
Assignee: LG ELECTRONICS INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 11:
12. 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 plurality of bars extending in a thickness direction of the vacuum space,
wherein the vacuum space has a thickness of at least 8.9 mm in a direction between the first plate and the second plate, and
wherein an equation:, 1.03
   5
   ⁢
   4
  
  <
  
   
    
     
      E
      ⁢
      m
     
     3
    
    ⁢
    n
   
   
    a
    2
   
  
 

 is satisfied by the plurality of bars, and
wherein:
E is an elastic modulus of a material forming the at least one of the plurality of bars,
m is a radius of a short axis of a cross-sectional shape of one of the bars,
n is a radius of a long axis of the cross-sectional shape, and
a is a distance between two adjacent ones of the plurality of bars.