Refrigerator drain system

Patent metadata

Field	Value
Publication number	US-11725865-B2
Application number	US-201916979813-A
Country	US
Kind code	B2
Filing date	Mar 6, 2019
Priority date	Mar 12, 2018
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

A refrigerator includes: a cabinet including an inner case provided with a storage compartment, a case supporter coupled to a lower side of the inner case to support the inner case, and a base coupled to a lower side of the case supporter; a door disposed on a front portion of the cabinet to open and close the storage compartment; and a cooling device disposed on a rear surface of the inner case to have at least a portion thereof exposed to the storage compartment, wherein a water collection hole is formed on a rear end of a bottom surface of the inner case, wherein a water collection guide is mounted on the inner case to guide water flowing into the water collection hole to flow downward, wherein a water collection portion is formed on the base to collect water passing through the water collection guide.

First claim

The invention claimed is:

1. A refrigerator comprising:
a cabinet comprising:
an inner case that defines a storage compartment, the inner case having a bottom surface that defines a water collection hole at a rear end,
a case supporter that is coupled to a lower side of the inner case and that supports the inner case,
a base that is coupled to a lower side of the case supporter, wherein the base and the case supporter define a cavity therebetween,
a water collection guide mounted on the lower side of the inner case and configured to guide water downward from the water collection hole, and
a water collection portion disposed on the base and configured to collect water from the water collection guide;

a door disposed on a front portion of the cabinet and configured to open and close at least a portion of the storage compartment; and
a cooling device disposed on a rear surface of the inner case, at least a portion of the cooling device being exposed to the storage compartment,
wherein the water collection guide comprises:
a contact portion that is coupled to and in contact with an outer surface of the inner case, and
a water collection pipe having a guide hole configured to fluidly communicate with the water collection hole, and

wherein the contact portion comprises:
a horizontal contact portion that is in contact with a lower surface of the inner case, and
a vertical contact portion that extends upward from a rear end of the horizontal contact portion and that is in contact with the rear surface of the inner case.

2. The refrigerator of claim 1 , wherein the water collection guide comprises an inclined portion that is disposed at an upper end of the water collection pipe, and
wherein an upper width of the inclined portion is greater than a lower width of the inclined portion.

3. The refrigerator of claim 1 , wherein the case supporter comprises a guide pipe that receives the water collection pipe.

4. The refrigerator of claim 1 , wherein the inner case further comprises:
an elevated portion that protrudes upward from a center portion of the bottom surface and that extends in a forward-backward direction; and
base portions that are disposed on both sides of the elevated portion, respectively, each of the base portions being stepped downward from the elevated portion.

5. A refrigerator comprising:
a cabinet comprising:
an inner case that defines a storage compartment, the inner case having a bottom surface that defines a water collection hole at a rear end,
a case supporter that is coupled to a lower side of the inner case and that supports the inner case,
a base that is coupled to a lower side of the case supporter, wherein the base and the case supporter define a cavity therebetween,
a water collection guide mounted on the lower side of the inner case and configured to guide water downward from the water collection hole, and
a water collection portion disposed on the base and configured to collect water from the water collection guide;

a door disposed on a front portion of the cabinet and configured to open and close at least a portion of the storage compartment; and
a cooling device disposed on a rear surface of the inner case, at least a portion of the cooling device being exposed to the storage compartment,
wherein the water collection guide comprises:
a contact portion that is coupled to and in contact with an outer surface of the inner case, and
a water collection pipe having a guide hole configured to fluidly communicate with the water collection hole,

wherein the case supporter comprises a guide pipe that receives the water collection pipe, and
wherein the guide pipe has:
an upper end that extends upward from an upper surface of the case supporter and that connects to a lower end of the water collection pipe, and
a lower end that extends downward from a lower surface of the case supporter and that is configured to guide water discharged from the water collection pipe toward the water collection portion.

6. The refrigerator of claim 5 , wherein the water collection portion comprises a pipe cover rib that receives a lower end of the guide pipe.

7. The refrigerator of claim 6 , wherein the pipe cover rib defines a slit that extends in a vertical direction.

8. The refrigerator of claim 6 , wherein the water collection portion further comprises a vertical wall that protrudes upward from the base, that defines a storage space configured to store water from the guide pipe, and that surrounds the pipe cover rib.

9. The refrigerator of claim 8 , wherein the pipe cover rib defines a slit that extends in a vertical direction and that is in communication with the storage space.

10. A refrigerator comprising:
a cabinet comprising:
an inner case that defines a storage compartment, the inner case having a bottom surface that defines a water collection hole at a rear end,
a case supporter that is coupled to a lower side of the inner case and that supports the inner case,
a base that is coupled to a lower side of the case supporter, wherein the base and the case supporter define a cavity therebetween,
a water collection guide mounted on the lower side of the inner case and configured to guide water downward from the water collection hole, and
a water collection portion disposed on the base and configured to collect water from the water collection guide;

a door disposed on a front portion of the cabinet and configured to open and close at least a portion of the storage compartment; and
a cooling device disposed on a rear surface of the inner case, at least a portion of the cooling device being exposed to the storage compartment,
wherein the cooling device comprises a fan that protrudes rearward relative to the rear surface of the inner case, and
wherein the cabinet is configured to guide air discharged from the fan to an outside of the cabinet through the water collection portion.

11. The refrigerator of claim 10 , wherein the cabinet further comprises a middle plate that covers an upper surface and the rear surface of the inner case, and a rear panel that covers a rear surface of the middle plate,
wherein the fan is disposed between the middle plate and the rear panel, and
wherein the cabinet is configured to guide air discharged from the fan downward through a space between the middle plate and the rear panel, and then to guide the air forward through the cavity defined between the case supporter and the base.

12. A refrigerator comprising:
a cabinet comprising:
an inner case that defines a storage compartment, the inner case having a bottom surface that defines a water collection hole at a rear end,
a case supporter that is coupled to a lower side of the inner case and that supports the inner case,
a base that is coupled to a lower side of the case supporter, wherein the base and the case supporter define a cavity therebetween,
a water collection guide mounted on the lower side of the inner case and configured to guide water downward from the water collection hole, and
a water collection portion disposed on the base and configured to collect water from the water collection guide;

a door disposed on a front portion of the cabinet and configured to open and close at least a portion of the storage compartment; and
a cooling device disposed on a rear surface of the inner case, at least a portion of the cooling device being exposed to the storage compartment,
wherein the inner case further comprises:
an elevated portion that protrudes upward from a center portion of the bottom surface and that extends in a forward-backward direction, and
base portions that are disposed on both sides of the elevated portion

Assignees

• Lg Electronics Inc

Inventors

• Yoo Daehyun
• Lim Kiyoung
• Park Kihyun

Classifications

• F25D21/14 Primary

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

• F25B21/04

  reversible · CPC title

• F25D21/08

  by electric heating · CPC title

• F25D23/003

  for cooling refrigerating machinery · CPC title

• F25D23/021

  Sliding doors · CPC title