Clothes dryer

Patent metadata

Field	Value
Publication number	US-9752274-B2
Application number	US-201414177659-A
Country	US
Kind code	B2
Filing date	Feb 11, 2014
Priority date	Jul 8, 2010
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

Disclosed is a clothes dryer including a heat exchanger for condensing air discharged from a drum to remove moisture from the air, a collector for collecting condensed water produced in the heat exchanger, a first pump for pumping the condensed water from the collector to a water tank, and a discharge unit for selectively discharging the condensed water from the water tank, to wash the heat exchanger using the condensed water.

First claim

What is claimed is:

1. A dryer, comprising:
a drum to accommodate an object to be dried;
a housing provided under the drum, the housing having a top cover and a base;
a heat exchanger in the housing, and the heat exchanger is configured to condense air from a drum;
a collector provided under the heat exchanger in the housing, and the collector is configured to collect condensed water from the heat exchanger;
a first pump to provide the condensed water from the collector to a tank;
a second pump disposed on the top cover of the housing, and the second pump to provide the condensed water from the tank to the heat exchanger;
a guide line arranged beneath the second pump and configured to connect the second pump to the collector so as to guide water leaking from the second pump to the collector, the guide line extending through the heat exchanger;
a discharge line to couple between the water tank and the second pump, and the condensed water to pass through the discharge line;
a valve at the discharge line between the water tank and the second pump for selectively opening and closing the discharge line; and
a washing member to couple to the second pump via an injection line, the washing member is provided at the top cover of the housing, and the washing member to provide the condensed water to the heat exchanger in the housing.

2. The dryer according to claim 1 , further comprising a valve housing configured to fix a position of the valve and a second pump housing configured to fix a position of the second pump,
wherein the valve housing and the second pump housing are disposed on the top cover of the housing of the heat exchanger.

3. The dryer according to claim 2 , wherein at least one of the valve housing, the second pump housing or the washing device is formed integrally with the top cover.

4. The dryer according to claim 1 , wherein the washing member includes an injection nozzle.

5. The dryer according to claim 1 , wherein the guide line has an end portion to communicate with the collector.

6. A dryer, comprising:
a drum to accommodate an object to be dried;
a housing provided under the drum, the housing including a top cover, a base, and side covers;
a heat exchanger provided in the housing, and the heat exchanger is configured to condense air discharged from a drum to remove moisture from the air;
a collector provided under the heat exchanger in the housing, and the collector is configured to collect condensed water produced in the heat exchanger;
a first pump configured to pump the condensed water from the collector to a tank;
a second pump disposed on the top cover of the housing and configured to supply the condensed water from the tank to the heat exchanger, to wash the heat exchanger using the supplied condensed water;
a guide line arranged beneath the second pump and configured to connect the second pump to the collector so as to guide water leaking from the second pump to the collector, the guide line extending through the heat exchanger;
a discharge line configured to connect the water tank and the second pump and to discharge the condensed water;
a valve provided in the discharge line between the water tank and the second pump for selectively opening and closing the discharge line; and
a washing member connected to the second pump via an injection line, the washing member disposed on the top cover of the housing and configured to inject the condensed water into the housing onto the heat exchanger.

7. The dryer according to claim 6 , further comprising a valve housing configured to fix a position of the valve and a second pump housing configured to fix a position of the second pump,
wherein the valve housing and the second pump housing are disposed on the top cover of the housing of the heat exchanger.

8. The dryer according to claim 6 , wherein the washing member includes an injection nozzle.

9. The dryer according to claim 7 , wherein at least one of the valve housing, the second pump housing or the washing device is formed integrally with the top cover.

10. The dryer according to claim 6 , wherein the guide line has an end portion communicating with the collector.

Assignees

• Lg Electronics Inc

Inventors

• Lee Yongju
• Lee Sangik
• Noh Hyunwoo

Classifications

• F26B21/333

  by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle · CPC title

• D06F58/24 Primary

  Condensing arrangements · CPC title

• F26B21/086

  Mechanical Engineering · mapped topic

• D06F58/22 Primary

  Lint collecting arrangements · CPC title