Laundry treatment apparatus

Patent metadata

Field	Value
Publication number	US-9163352-B2
Application number	US-201414163854-A
Country	US
Kind code	B2
Filing date	Jan 24, 2014
Priority date	Jan 25, 2013
Publication date	Oct 20, 2015
Grant date	Oct 20, 2015

Abstract

A laundry treatment apparatus may include a cabinet defining an external appearance of the apparatus, the cabinet having a laundry opening, a laundry accommodation module provided within the cabinet to receive laundry introduced through the laundry opening, a suction duct into which interior air from the laundry accommodation module may be introduced, a discharge duct from which the air is discharged into the laundry accommodation module, a connection duct connecting the suction duct and the discharge duct to each other, a heat exchanger provided in the connection duct, and a blower provided between the heat exchanger and the discharge duct to circulate the interior air of the laundry accommodation module.

First claim

What is claimed is:

1. A laundry treatment apparatus, comprising:
a cabinet having a laundry opening;
a laundry receiving device provided in the cabinet and configured to receive laundry therein through the laundry opening;
a drive system coupled to the laundry receiving device and configured to rotate the laundry receiving device;
a hot air supply module, including:
a circulation passage configured to draw air from an interior of the laundry receiving device and guide the air back into the laundry receiving device;
a heat exchanger provided in the circulation passage; and
a blower configured to circulate the air from the interior of the laundry receiving device through the circulation passage and back into the laundry receiving device;

a first Printed Circuit Board (PCB) having a first controller configured to control the drive system; and
a second PCB having a second controller configured to control the heat exchanger and the blower, wherein the second controller is configured to implement data communication with the first controller.

2. The apparatus according to claim 1 , wherein the second PCB is separably coupled to the first PCB.

3. The apparatus according to claim 2 , further comprising a connector configured to connect the first PCB and the second PCB, wherein the connector is configured to provide for data communication between the first controller and the second controller.

4. The apparatus according to claim 2 , further comprising a data storage medium provided at the first PCB to store control data of the drive system and the hot air supply module therein.

5. The apparatus according to claim 1 , wherein the first controller is configured to operate the drive system to rotate the laundry receiving device to determine an amount of laundry received in the laundry receiving device, and to transmit the determined amount of laundry to the second controller, and
wherein the second controller is configured to control at least one of an operation time of the hot air supply module or a temperature of hot air supplied by the hot air supply module based on the determined amount of laundry received from the first controller.

6. The apparatus according to claim 5 , wherein the second controller is configured to transmit a signal indicating termination of operation of the hot air supply module to the first controller when a predetermined operation time of the hot air supply module has elapsed, and
wherein the first controller is configured to shut off power to the drive system in response to receiving the signal from the second controller indicating termination of operation of the hot air supply module.

7. The apparatus according to claim 1 , wherein the circulation passage comprises:
a suction duct fixed to an outer circumferential surface of the laundry receiving device, wherein the suction duct draws air from an interior of the laundry in to the circulation passage;
a discharge duct fixed to a front surface of the laundry device, wherein the discharge duct discharges air from the circulation passage back into the laundry receiving device; and
a connection duct connecting the suction duct and the discharge duct,
wherein the heat exchanger is provided in the connection duct, and the blower is positioned between the heat exchanger and the discharge duct.

8. A laundry treatment apparatus, comprising:
a cabinet having a laundry opening;
a tub provided in the cabinet;
a drum provided in the tub and configured to receive laundry therein through the laundry opening formed in the cabinet;
a drive system configured to rotate the drum;
a water supply device configured to supply wash water into the tub;
a drain device configured to discharge the wash water from the tub;
a hot air supply module, including:
a circulation passage configured to draw air out from an interior air of the tub and to guide the air back into the tub;
a heat exchanger provided in the circulation path and a blower configured to circulate the air from the interior of the tub through the circulation passage and back into the tub;

a first PCB having a first controller configured to control the drive system and the water supply and drain devices; and
a second PCB having a second controller configured to control the heat exchanger and the blower, wherein the first and second controllers are configured to perform data communication therebetween.

9. The apparatus according to claim 8 , wherein the second PCB is separably coupled to the first PCB.

10. The apparatus according to claim 9 , further comprising a connector configured to connect the first PCB and the second PCB, wherein the connector provides for data communication between the first controller and the second controller.

11. The apparatus according to claim 9 , further comprising a data storage medium provided at the first PCB to store control data of the drive system and the hot air supply module therein.

12. The apparatus according to claim 8 , wherein the first controller is configured to operate the drive system to rotate the drum and determine an amount of laundry received in the drum after operation of the drain device is terminated, and
wherein the second controller is configured to control at least one of an operation time of the hot air supply module or a temperature of hot air supplied by the hot air supply module based on data received from the first controller related to the amount of laundry received in the drum.

13. The apparatus according to claim 12 , wherein the second controller is configured to transmit a signal indicating termination of operation of the hot air supply module to the first controller when a predetermined operation time of the hot air supply module has elapsed, and
wherein the first controller is configured to shut off power to the drive system in response to receiving the signal indicating termination of operation of the hot air supply module from the second controller.

Assignees

• Lg Electronics Inc

Inventors

• Han Injae
• Kim Hyojun
• Hong Sangwook
• Kim Youngsuk

Classifications

• D06F2103/36

  Flow or velocity · CPC title

• D06F2105/24

  Flow or velocity · CPC title

• D06F2105/26

  Heat pumps · CPC title

• D06F2105/46

  Drum speed; Actuation of motors, e.g. starting or interrupting · CPC title

• D06F2103/34

  Humidity · CPC title