Control method for wall-mounted drum washing machine

• US 9,783,918 B2
• Filed: 09/05/2013
• Issued: 10/10/2017
• Est. Priority Date: 04/04/2012
• Status: Expired due to Fees

• Current Assignee: Dongbu Daewoo Electronics Corporation
• Original Assignee: Dongbu Daewoo Electronics Corporation
• Inventors: Lee, Ju Dong, Hwang, Ui Kun, Lee, Jae Min, Joo, Sung Su
• Primary Examiner(s): BARR, MICHAEL E
• Assistant Examiner(s): Tate-Sims, Cristi
• Application Number:
  US14/019,454
• Publication Number:
  US 20140068873A1
• Time in Patent Office: 1,496 Days
• Field of Search: None
• CPC Class Codes: D06F 2103/18 Washing liquid level
• CPC Class Codes: D06F 2103/26 Imbalance; Noise level
• CPC Class Codes: D06F 2105/60 Audible signals
• CPC Class Codes: D06F 2105/62 Stopping or disabling machine operation
• CPC Class Codes: D06F 33/47 Responding to irregular working conditions, e.g. malfunctioning of pumps safety arrangements D06F37/42
• CPC Class Codes: D06F 34/05 for wireless communication between components, e.g. for remote monitoring or control
• CPC Class Codes: D06F 34/20 Parameters relating to constructional components, e.g. door sensors
• CPC Class Codes: D06F 37/02 Rotary receptacles, e.g. drums
• CPC Class Codes: D06F 37/267 Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups D06F37/206 takes precedence
• CPC Class Codes: D06F 37/42 Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
• CPC Class Codes: D06F 39/14 Doors or covers; Securing means therefor
• CPC Class Codes: G01B 5/24 for measuring angles or tapers; for testing the alignment of axes
• CPC Class Codes: G01P 15/00 Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration

Abstract

A control method for a wall-mounted drum washing machine, which removes foams remaining in a detergent box and a conditioner box at a final stage of a spin-drying process of the wall-mounted drum washing machine, thereby maintaining the detergent box and the conditioner box in a clean state.

Claims

1. A control method for a wall-mounted drum washing machine including a detergent box and a conditioner box which are inserted into a tub through a front panel, the control method comprising:

stopping, by a control unit, control for a motor during a spin-drying process;

determining, by the control unit, whether or not a foam removal condition is satisfied, after the control for the motor is stopped;

opening, by the control unit, a water supply valve for a preset foam removal time in order to remove foams of the detergent box and the conditioner box, when it is determined that the foam removal condition is satisfied; and

stopping, by the control unit, the motor to complete the spin-drying process, after the foam removal time passes, wherein the foam removal condition is satisfied when a preset time passes from the time at which the control for the motor is stopped, wherein the control unit rotates the motor at an RPM at the time at which the preset time passed, for the foam removal time, and

wherein a drum disposed on the tub is not dipped into water supplied from the water supply valve.

2. The control method of claim 1, wherein the foam removal condition is satisfied when the RPM of the motor reaches a preset reference speed.

3. The control method of claim 2, wherein the control unit rotates the motor at the reference speed for the foam removal time.