Refrigerator

Patent metadata

Field	Value
Publication number	US-10288341-B2
Application number	US-201515313889-A
Country	US
Kind code	B2
Filing date	Apr 17, 2015
Priority date	Apr 18, 2014
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A refrigerator including a main body including a storage compartment defined therein, a cooling device for cooling the storage compartment, a door for opening and closing the storage compartment, a gasket disposed between the door and the main body to seal the storage compartment, and a heat source disposed around the door, wherein the heat source includes a plurality of heaters generating different quantities of heat.

First claim

What is claimed is:

1. A refrigerator comprising:
a main body including a storage compartment defined therein;
a cooling device for cooling the storage compartment;
a door for opening and closing the storage compartment;
a gasket disposed between the door and the main body to seal the storage compartment; and
a heat source disposed around the door,
wherein the heat source includes a plurality of heaters generating different quantities of heat, and
wherein a periphery of the door comprises a plurality of regions, and the plurality of heaters are provided at the plurality of regions, respectively.

2. The refrigerator according to claim 1 , wherein the plurality of heaters of the heat source comprises:
a first heater disposed at a first region, among the plurality of regions, at the periphery of the door; and
a second heater disposed at a second region, among the plurality of regions, at the periphery of the door,
wherein the first heater is positioned closer to a peripheral edge of the door than the second heater, and is configured to generate a quantity of heat per unit time smaller than that of the first heater.

3. The refrigerator according to claim 2 , wherein the gasket is disposed at a position corresponding to the heat source.

4. The refrigerator according to claim 3 , wherein the door includes a locking unit for coupling the door to the main body,
wherein the locking unit is disposed between the second heater and the peripheral edge of the door.

5. The refrigerator according to claim 4 , wherein the gasket defines a closed loop, and the locking unit is disposed outside the closed loop defined by the gasket.

6. The refrigerator according to claim 3 , wherein the heat source is embedded in one of the door or the main body.

7. The refrigerator according to claim 6 , further comprising: a sealing member protruding from a rear surface of the door to seal the storage compartment.

8. The refrigerator according to claim 7 , wherein the gasket is disposed to surround the sealing member in a state of being spaced apart from the sealing member.

9. The refrigerator according to claim 7 , wherein the heat source is disposed to surround the sealing member in a state of being outwardly spaced apart from the sealing member,
wherein a spacing distance between the first heater and a peripheral edge of the sealing member is greater than that between the second heater and the peripheral edge of the sealing member.

10. The refrigerator according to claim 2 , wherein the first and second heaters are electric heaters.

11. A refrigerator comprising:
a main body including a storage compartment defined therein;
a cooling device for cooling the storage compartment;
a door for opening and closing the storage compartment;
a home bar frame including a recess formed in the door;
a home bar door swingably hinged to the home bar frame to open and close the recess;
a gasket disposed between the home bar door and the home bar frame to seal the recess; and
a heat source disposed around the home bar door,
wherein the heat source includes a plurality of heaters generating different quantities of heat, and
wherein a periphery of home bar door comprises a plurality of regions, and the plurality of heaters are provided at the plurality of regions, respectively.

12. The refrigerator according to claim 11 , wherein the plurality of heaters of the heat source comprises:
a first heater disposed at a first peripheral region, among the plurality of regions, at the periphery of the home bar door; and
a second heater disposed at a second peripheral region, among the plurality of regions, at the periphery of the home bar door,
wherein the first heater is positioned closer to a peripheral edge of the home bar door than the second heater, and is configured to generate a quantity of heat per unit time smaller than that of the first heater.

13. The refrigerator according to claim 12 , wherein the gasket is disposed at a position corresponding to the heat source.

14. The refrigerator according to claim 13 , wherein the home bar door includes a locking unit for coupling the home bar door to the door,
wherein the locking unit is disposed between the second heater and the peripheral edge of the home bar door.

15. The refrigerator according to claim 14 , wherein the gasket defines a closed loop, and the locking unit is disposed outside the closed loop defined by the gasket.

16. The refrigerator according to claim 15 , further comprising: a sealing member protruding from a rear surface of the home bar door to seal the recess.

17. The refrigerator according to claim 16 , wherein the gasket is disposed to surround the sealing member.

18. The refrigerator according to claim 16 , wherein the heat source is disposed to surround the sealing member in a state of being outwardly spaced apart from the sealing member,
wherein a spacing distance between the first heater and a peripheral edge of the sealing member is greater than that between the second heater and the peripheral edge of the sealing member.

19. The refrigerator according to claim 12 , wherein the heat source is embedded in one of the door or the main body.

20. The refrigerator according to claim 12 , further comprising:
a first moisture sensor disposed at the first peripheral region to measure moisture; and
a second moisture sensor disposed at the second peripheral region to measure moisture,
wherein the first heater is configured to be selectively turned on or off depending on a measured value of the first moisture sensor, and the second heater is configured to be selectively turned on or off depending on a measured value of the second moisture sensor.

Assignees

• Lg Electronics Inc

Inventors

• Chae Sunam
• Choi Hojin
• Byun Kangsoo

Classifications

• F25D2323/023

  Door in door constructions · CPC title

• F25D2600/04

  Controlling heat transfer · CPC title

• F25D21/04 Primary

  Preventing the formation of frost or condensate · CPC title

• F25D11/00

  Self-contained movable devices, e.g. domestic refrigerators · CPC title

• F25B2700/02

  Humidity · CPC title