Vacuum adiabatic body and refrigerator

Patent metadata

Field	Value
Publication number	US-11320191-B2
Application number	US-201816768379-A
Country	US
Kind code	B2
Filing date	Dec 11, 2018
Priority date	Dec 13, 2017
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

A vacuum adiabatic body according to the present invention includes a reinforcing member which is provided at a peripheral portion of at least one plate member so as to reinforce the strength of the plate member providing the vacuum adiabatic body; and a drain pipe which penetrates a third space except for the reinforcing member and through which water passes. According to the present invention, the strength of the vacuum adiabatic body increases and a penetration path of the defrost water can be secured.

First claim

The invention claimed is:

1. A vacuum adiabatic body comprising:
a first plate that defines at least a portion of a first side of a wall adjacent to a first space having a first temperature;
a second plate that defines at least a portion of a second side of the wall adjacent to a second space having a second temperature;
a conductive resistance sheet that connects the first plate to the second plate to provide a third space which has a third temperature and is in a vacuum state, and the conductive resistance sheet is made of a material to reduce a beat transfer between the first plate and the second plate;
at least one support in the third space;
a reinforcing member provided on a peripheral portion of at least one of the first plate or the second plate so as to reinforce a strength of the vacuum adiabatic body; and
a drain pipe that penetrates the third space and through which water is to pass.

2. The vacuum adiabatic body according to claim 1 , further comprising:
a pair of refrigerant pipes that penetrate the third space.

3. The vacuum adiabatic body according to claim 2 ,
wherein the pair of refrigerant pipes include a heat exchange curved pipe provided in the third space.

4. A refrigerator comprising:
a vacuum adiabatic body includes a first plate that defines at least a portion of a first side of a wall adjacent to a first space having a first temperature, a second plate that defines at least a portion of a second side of the wall adjacent to a second space having a second temperature, a thermal insulator that connects the first plate to the second plate to provide a third space which has a third temperature and is in a vacuum state, the thermal insulator is to reduce heat transfer between the first plate and the second plate, at least one support to the third space, and an opening that forms with respect to a storage space;
a partition that divides the storage space into at least two spaces, the partition includes an adiabatic member to insulate the at least two spaces;
a first door that opens and closes a first space of the at least two spaces;
a second door that opens and closes a second space of the at least two spaces;
an evaporator provided in the storage space;
a machine chamber provided outside the storage space;
a refrigerant pipe that connects the machine chamber and the evaporator; and
a drain pipe that penetrates the vacuum adiabatic body to guide defrost water from the evaporator to outside of the vacuum adiabatic body,
wherein a heat transfer rate of the adiabatic member in the partition higher than a heat transfer rate in the third space,
wherein at least one of the defrost water and an electric line path penetrates the third space, and through-holes for pipelines are provided at the first plate and the second plate, and
wherein a cold air flow path, provided through the partition, that sends and receives cold air between the first space and the second space of the at least two spaces.

5. The refrigerator according to claim 4 ,
wherein the first plate and the second plate are made of a metal material, and
wherein the partition is made of a non-metal material.

6. The refrigerator according to claim 5 ,
wherein the first and second plates to attach to the partition.

7. The refrigerator according to claim 4 ,
wherein the refrigerant pipe includes:
a first flow path that passes through the space inside the refrigerator;
a second flow path that passes to outside the refrigerator; and
a third flow path in which a discharge flow path from the evaporator performs heat exchange with a discharge flow path from the machinery chamber, and
wherein the third flow path is provided through the partition.

8. The refrigerator according to claim 4 ,
wherein a path is provided through the partition to discharge defrost water from the evaporator provided at one of the at least two spaces.

9. The refrigerator according to claim 4 , further comprising:
a cold air collecting pipe that guides cold air collected from the second space of the at least two spaces to any space of the at least two spaces, among the cold air flow paths,
wherein the cold air collecting pipe is aligned in a line with the evaporator.

10. The refrigerator according to claim 4 , further comprising:
a cold air collecting pipe that guides cold air collected from the second space of the at least two spaces to any space of the at least two spaces, among the cold air flow paths,
wherein fins of the evaporator are denser at a position close to the cold air collecting pipe than at a position further from the cold air collecting pipe.

11. The refrigerator according to claim 4 ,
wherein a suction-side division wall is provided on a side of the evaporator to prevent bypass of air cooled at the evaporator.

12. The refrigerator according to claim 4 ,
wherein the cold air flow path includes:
a cold air supply flow path having a first traveling direction of cold air, and a cold air collecting flow path having a second traveling direction of the cold air, the second traveling direction being different than the first traveling direction, and
a multi-duct that extends to be long on a surface of the second space of the at least two spaces and in which an inflow end part of the cold air is provided while being bent toward a center of any surface, so as to evenly distribute cool air inside the second space of the at least two spaces.

13. The refrigerator according to claim 4 , further comprising:
a self rack is provided on a surface of the second space of the at least two spaces and fastened on an inner surface, of the vacuum adiabatic body;
a multi-heat that evenly guides cool air to the inside of the second space of the at least two spaces; and
a flow path cover fastened to the inner surface of the vacuum adiabatic body together with the self rack and accommodates the multi-duct therein.

14. A refrigerator comprising:
a first plate that defines at least a portion of a first side of a wall adjacent to a first space having a first temperature;
a second plate that defines at least a portion of a second side of the wall adjacent to a second space having a second temperature different;
a thermal insulator that connects the first plate to the second plate to provide a third space which has a third temperature and is in a vacuum state, the thermal insulator is to reduce a heat transfer between the first plate and the second plate;
at least one support in the third space;
a main body having a cavity formed by the first plate and the second plate;
a dividing wall fastened to the first plate so as to divide a space in the cavity into at least two spaces;
at least one door that closes at least one of a first space or a second space of the at least two spaces;
a gasket installed to the at least one door or the main body so as to seal a portion at which the door and the main body contact each other; and
a sealing frame that contacts the gasket, and is provided between the third space and the gasket;
wherein the dividing wall includes an adiabatic material having a thermal conductivity which is higher than a thermal conductivity in the third space.

15. The refrigerator according to claim 14 ,
wherein a through-hole is formed on an inner space of the dividing wall so that fluid moves between the at least two spaces.

16. The refrigerator according to claim 14 ,
wherein a discharge flow path of defrost water generated at the cavity is through an inner space of the dividing wall.

17. The refrigerator according to claim 14 ,
wherein a cold air flow path is

Assignees

• Lg Electronics Inc

Inventors

• Kang Myoungju
• Kim Bongjin
• Nam Hyeunsik

Classifications

• F25D2317/0652

  through the corner · CPC title

• F25D2400/06

  Refrigerators with a vertical mullion · CPC title

• F25D21/14

  Collecting or removing condensed and defrost water; Drip trays · CPC title

• F25D19/00

  Arrangement or mounting of refrigeration units with respect to devices {or objects to be refrigerated, e.g. infrared detectors} · CPC title

• F25D23/061

  with conduit means · CPC title