JP2013031623A5

JP2013031623A5 -

Info

Publication number: JP2013031623A5
Application number: JP2011225836A
Authority: JP
Filing date: 2011-10-13
Publication date: 2014-12-18
Anticipated expiration: 2031-10-13

Claims

An outer box,
A water tank housed in the outer box;
A rotating tank housed in the water tank;
Drive means for rotationally driving the rotary tank;
A support structure supporting the water tank on the outer box;
A rotational speed detection means for detecting the rotational speed of the rotating tank;
Vibration detecting means provided in the water tank and detecting vibration applied to the water tank based on acceleration applied to the water tank;
The acceleration applied to the water tank detected by the vibration detecting means is compared with a preset upper limit acceleration, the excess number of times that the acceleration applied to the water tank is determined to be larger than the upper limit acceleration, and the number of times exceeded based on the number of times of excess. A control device for controlling the number of rotations of the rotating tank by the driving means;
Washing machine equipped with.

The upper limit acceleration is set in two stages: a first upper limit acceleration a1 and a second upper limit acceleration a2 larger than the first upper limit acceleration a1.
2. The washing machine according to claim 1, wherein when the acceleration applied to the water tub detected by the vibration detection unit is greater than the second upper limit acceleration a <b> 2, the control device stops driving the rotating tub by the driving unit.

The controller is
The rotation speed of the rotating tank is divided into a low-speed rotation area lower than a preset lower-limit rotation speed and a medium-high speed rotation area that is equal to or higher than the lower-limit rotation speed, and a low-speed rotation upper limit as the upper limit acceleration in the low-speed rotation area An acceleration AL is set, and a medium / high speed rotation upper limit acceleration AH larger than the low speed rotation upper limit acceleration AL is set as the upper limit acceleration in the medium / high speed rotation region,
When the rotation speed of the rotating tub is in the low speed rotation region, the low speed rotation excess number NL determined that the acceleration applied to the water tank detected by the vibration detecting means is larger than the low speed rotation upper limit acceleration AL is counted, and the low speed rotation The washing machine according to claim 1 or 2, wherein when the excess number NL reaches a preset low-speed rotation upper limit number EL, the number of rotations of the rotating tub by the driving unit is controlled.

The controller is
The rotation speed of the rotating tank is divided into a low-speed rotation area lower than a preset lower-limit rotation speed and a medium-high speed rotation area that is equal to or higher than the lower-limit rotation speed, and a low-speed rotation upper limit as the upper limit acceleration in the low-speed rotation area An acceleration AL is set, and a medium / high speed rotation upper limit acceleration AH larger than the low speed rotation upper limit acceleration AL is set as the upper limit acceleration in the medium / high speed rotation region,
When the number of rotations of the rotating tank is in the medium-high speed rotation region, the number of medium-high speed rotation excess times NH determined that the acceleration applied to the water tank detected by the vibration detection means is larger than the medium-high speed rotation upper limit acceleration AH is counted, The number of rotations of the rotating tank by the driving means is controlled when the medium / high speed rotation excess number NH reaches a medium / high speed rotation upper limit number EH which is preset and smaller than the low speed rotation upper limit number EL. The washing machine described.

The controller is
The number of rotations of the rotating tub in the low-speed rotation region is divided into an initial rotation region and an initial rotation region in which the rotation of the rotating tub increases irregularly after the rotation of the rotating tub is started by energization of the driving means. Subsequently, it is divided into an equal acceleration rotation region in which the rotation speed of the rotating tank increases regularly, and an initial rotation upper limit acceleration AL1 is set as the upper limit acceleration in the initial rotation region,
When the rotation speed of the rotating tub is in the initial rotation region, the initial rotation excess number NL1 determined that the acceleration applied to the water tank detected by the vibration detecting means is larger than the initial rotation upper limit acceleration AL1 is counted, and the initial rotation The washing machine according to claim 3 or 4, wherein when the excess number NL1 reaches a preset initial rotation upper limit number EL1, the number of rotations of the rotating tub by the driving means is controlled.

The controller is
The number of rotations of the rotating tub in the low-speed rotation region is divided into an initial rotation region and an initial rotation region in which the rotation of the rotating tub increases irregularly after the rotation of the rotating tub is started by energization of the driving means. Subsequently, it is divided into an equal acceleration rotation region in which the rotation speed of the rotating tank increases regularly, and an equal acceleration rotation upper limit acceleration AL2 is set as the upper limit acceleration in the equal acceleration rotation region,
When the rotation tank of the rotation tank is in the constant acceleration rotation region, the number of equal acceleration rotation excess times NL2 determined that the acceleration applied to the water tank detected by the vibration detecting means is larger than the equal acceleration rotation upper limit acceleration AL2, The number of rotations of the rotating tank by the driving means is controlled when the number of equal acceleration rotation excess times NL2 is set in advance and reaches an equal acceleration rotation upper limit number EL2 smaller than the initial rotation upper limit number EL1. The washing machine described.

Weight detection means for detecting the weight of the laundry housed in the rotating tub;
A setting unit by weight for setting the upper limit acceleration and the number of times of excess in accordance with the weight of the laundry detected by the weight detection unit;
The washing machine according to any one of claims 1 to 6, further comprising:

The washing machine according to claim 7, wherein the setting unit by weight sets the excess number to be larger as the weight of the laundry becomes smaller.

Temperature detecting means for detecting the temperature around the water tank;
A setting unit for each temperature that sets the upper limit acceleration and the number of times of excess in accordance with the temperature around the water tank detected by the temperature detection unit;
The washing machine according to any one of claims 1 to 8, further comprising:

The said control apparatus sets more times of the detection of acceleration when the temperature detected by the said temperature detection means is 10 to 30 degreeC than when the temperature detected by the said temperature detection means is 10 degrees C or less. Item 10. A washing machine according to Item 9.

The controller is
The acceleration applied to the water tank detected by the vibration detection means is compared with the first upper limit acceleration set in advance and the second upper limit acceleration having a value larger than the first upper limit acceleration, and the acceleration applied to the water tank is the first upper limit acceleration. Counting the first excess number determined to be greater than the acceleration, and the second excess number determined that the acceleration applied to the water tank is greater than the second upper limit acceleration,
When the acceleration applied to the water tank is larger than the second upper limit acceleration, the second excess number of times controls the rotation speed of the rotating tank at one time,
When the acceleration applied to the water tank is greater than the first upper limit acceleration and less than or equal to the second upper limit acceleration, the number of rotations of the rotating tank is controlled when the first excess number reaches a preset number of detections. The washing machine according to any one of 10.