CN102575404A - Control method of laundry machine - Google Patents

Abstract

Control methods of a laundry machine are disclosed. One of them is a control method of a laundry machine comprising a water supplying step configured to drive the drum of the machine in scrub motion when water is supplied to the tub of the machine. Another control method of the laundry machine comprising a washing cycle with at least one water supplying step configured to drive the drum in a predetermined time period after water supply to the tub starts or after the water level reaches a predetermined value.

Description

The control method of washing machine

Technical field

The present invention relates to the control method of washing machine.

Background technology

Generally speaking, washing machine can comprise washing, rinsing and dewatering cycle.Yet, the conventional washer existing problems.

Summary of the invention

Technical problem

Therefore, the present invention is directed to the control method of washing machine.

Technical scheme

For dealing with problems, the purpose of this invention is to provide a kind of control method of washing machine, this method comprises and being configured to when water is fed to steel ladle by the water supply step of washing the action drives cylinder by rubbing with the hands.

Beneficial effect

The present invention has following beneficial effect.

According to the control method of the invention described above, the control with high-efficient washing circulation can be provided.

Description of drawings

To provide further understanding of the present invention, these accompanying drawings were merged among the application and constitute the application's a part in accompanying drawing was included in, and they illustrate embodiments of the invention and are used for explaining principle of the present invention with specification.

In the drawings:

Fig. 1 is as embody the also cutaway view of the schematic washing machine of general description at this;

Fig. 2 illustrates the three-dimensional exploded view according to the washing machine of second embodiment of using the dewatering cycle control method;

Fig. 3 is the cutaway view that the connection status of Fig. 2 is shown;

Fig. 4 illustrates as embodying at this and the various cylinder actions of general description and the motion appearance attitude of doing washing;

Fig. 5 is the figure that is illustrated in the driving of water temperature and circulating pump in the wash cycle;

Fig. 6 and Fig. 7 are the figure that is illustrated in the rpm variation of dewatering cycle intermediate roll;

Fig. 8 is the figure that the relation of quality and intrinsic frequency is shown;

Fig. 9 is the figure that the vibration characteristics of washing machine is shown.

The specific embodiment

As follows, with the control method that illustrates and describes according to washing machine of the present invention.At first will describe according to washing machine various embodiment, that can use control method of the present invention, will describe these control methods subsequently by respective figure.

Fig. 1 is the figure that illustrates according to the washing machine of the first embodiment of the present invention, can be applied to this washing machine according to the control method of various embodiment.

With reference to Fig. 1, comprise according to the washing machine 100 of the first embodiment of the present invention: be configured to limit the outward appearance of washing machine casing 10, be arranged in the casing 10 with the steel ladle 20 of holding washing water and be arranged on the rotatable drum 30 in the steel ladle 20.

Casing 10 limits the outward appearance of washing machine 100, and constructional element (will describe after a while) can be installed in the casing 10.The header board that door 11 is connected to casing 10, the user opens door 11 clothing is packed in the casing 10.

Steel ladle 20 is arranged in the casing 10, fills washings in the steel ladle 20.Cylinder 30 can rotate accommodating laundry in the cylinder 30 in steel ladle 20.In the case, a plurality of lifters 31 can be set in cylinder 30, lifter 31 ascending, descending clothings are implemented washing.

Steel ladle 20 is supported by the spring that is arranged on outside the steel ladle 20.Motor 40 is installed to the back surface of steel ladle 20, and motor 40 makes cylinder 30 rotations.When the cylinder by motor 40 rotations produces vibration, be arranged on according to steel ladle in the washing machine of first embodiment 20 and cylinder and vibrate with interrelating.If cylinder 30 rotations, the vibration that then produces in cylinder and the steel ladle 20 can be absorbed by the damper 60 that is positioned under the steel ladle 20.

As shown in Figure 1, steel ladle 20 and cylinder 30 can be parallel to the substrate setting of casing 10.Alternatively, although not shown in the figures, both rear portions of steel ladle 20 and cylinder 30 can be downward-sloping.The user is the clothing cylinder 30 of packing into if this is, then both anterior parts of steel ladle 20 and cylinder 30 are inclined upwardly better.Front surface and/or surface, back at cylinder 30 are provided with ball balancer 70, if the cylinder rotation, especially cylinder rotates at a high speed, for example drying and dehydrating (dry-spinning) circulation, the then vibration of balancing drum 30.To describe ball balancer in detail after a while.

According to the washing machine of present embodiment, but the steel ladle fixed support to casing, perhaps it can be by flexible support structure, for example after a while with the suspension unit of describing, support to casing.And the support of steel ladle can and be completely fixed between the support in the support of suspension unit.

That is to say that steel ladle can be by suspension unit (will describe after a while) flexible support, more difficulty is mobile with being completely fixed thereby perhaps can be supported.Although not shown in the figures, with after a while that the embodiment that describes is different, casing can be set.For example, under the situation of built-in washing machine, can replace casing through the predetermined space of the built-in washing machine of formation such as wall construction installation.In other words, built-in washing machine can not comprise the casing of the outward appearance that is configured to independent qualification washing machine.

Fig. 2 is that part illustrates the three-dimensional exploded view according to the washing machine of second embodiment, and Fig. 3 is the cutaway view that the assembled state of washing machine shown in Figure 2 is shown.

With reference to Fig. 2 and Fig. 3, comprise the steel ladle 12 of fixed support to casing according to the washing machine of this embodiment.The steel ladle rear portion (tub rear) 120 of steel ladle anterior (tub front) 100 that steel ladle 12 can comprise the anterior part that is configured to limit steel ladle and the rear portion that is configured to limit steel ladle.Assemble mutually through screw at steel ladle anterior 100 and steel ladle rear portion 120, and in the structure of assembling, form predetermined space to hold cylinder.Steel ladle rear portion 120 can be included in the opening of surface formation thereafter, and the inner periphery on the back surface at steel ladle rear portion 120 is connected with the excircle of back liner 250.The inner periphery of back liner 250 is connected with steel ladle back 130 (tub back).Steel ladle back 130 is included in the through hole that wherein is formed centrally, and one is passed this through hole.Back liner 250 can be processed by flexible material, and this flexible material can not make the transfer of vibration at steel ladle back 130 to steel ladle rear portion 120.

Steel ladle rear portion 120 comprises surface, back 128.Back surperficial 128, the steel ladle back 130 at steel ladle rear portion 120 and back liner 250 limit the rear wall of steel ladles.Both are tightly connected back liner 250 and steel ladle back 130 and steel ladle rear portion 120, and it prevents that the washings that hold in the steel ladle from leaking.During cylinder rotation, steel ladle back 130 vibrates with cylinder.Therefore, the preset distance that is enough to not interfere steel ladle rear portion 120 is separated at steel ladle back 130.Because back liner 250 is processed by flexible material, so back liner 250 allows under the situation of not interfering steel ladle rear portion 120 steel ladle backs 130 to carry out relative motion.Back liner 250 can comprise pleated portions (beads) 252, and this pleated portions can sufficiently be extended to allow this relative motion at steel ladle back 130.

Anti-foreign matter member 200 is connected with the anterior part of steel ladle anterior 100, gets between steel ladle and the cylinder to prevent foreign matter.Anti-foreign matter member 200 is processed by flexible material, and it is fixedly installed to steel ladle anterior 100.Anti-foreign matter member 200 can be by processing with the material identical materials that is used for making back liner 250, and for simplicity, it will be called as " preceding liner ".

Cylinder 32 comprises anterior (the drum front) 300 of cylinder, portion of centre of the drum 320 and cylinder back (drum back) 340.Ball balancer 310,330 is installed in anterior part, the rear portion of cylinder respectively.Cylinder back 340 connects with spider (spider, star-wheel) 350, and spider 350 is connected with axle 351.Cylinder 32 is by steel ladle, rotating via the revolving force that axle 351 transmits from motor.

Axle 351 passes steel ladle back 130, directly is connected with motor 170.Particularly, axle 351 directly is connected with the rotor 174 of forming motor 170.Bearing block 400 is connected to the back surface at steel ladle back 130, and bearing block 400 is between motor 170 and steel ladle back 130, with back shaft 351 rotatably.

Stator 172 is fixedly installed to bearing block 400, and rotor 174 is positioned at around the stator 172.As stated, rotor 174 directly is connected with axle 351.Motor 170 is external-rotor motors, and it directly is connected with axle 351.

Bearing block 400 is supported by suspension unit with respect to chassis block 600, and suspension unit 18 comprises: three vertical support suspension arrangements and be configured to the supported and suspended device of inclination along front and rear direction inclination supporting bearing base.

Suspension unit 180 can comprise first cylindrical spring (cylinder spring, cylinder body spring), 520, second cylindrical spring 510, the 3rd cylindrical spring 500, the first cylindricality damper (cylinder damper), the 540 and second cylindricality damper 530.

First cylindrical spring 520 is arranged between the first suspension carriage 450 and the chassis block 600, and second cylindrical spring 510 is arranged between the second suspension carriage 440 and the chassis block 600.

The 3rd cylindrical spring 500 directly is connected between bearing block 400 and the chassis block 600.

The first cylindricality damper 540 tilts to be installed between the rear portion of the first suspension carriage 450 and chassis block.The second cylindricality damper 530 tilts to be installed between the rear portion of the second suspension carriage 440 and chassis block.

The cylindrical spring 520,510 of suspension unit 180 and 500 can flexibly be connected to chassis block 600, is enough to allow cylinder to move along fore-and-aft direction and left and right directions, is not to be completely fixed chassis block.That is to say that cylindrical spring 520,510 and 500 is back-up roller flexibly, carry out vertical motion and horizontal movement with respect to connecting portion with chassis block to allow cylinder.

Vertical those in the suspension arrangement flexibly postpone the vibration of (suspend) cylinder, and those damped vibrations of tilting.That is to say that in the vibrational system that is made up of spring and damping unit, vertically arranged those are used as spring, those that tilt to install are used as damping unit.

Steel ladle anterior 100 and steel ladle rear portion 120 are fixedly secured to casing 110, and the vibration of cylinder 32 is lingeringly supported by suspension unit 180.In fact, the structure of steel ladle 12 and cylinder 32 can be independently.Even when cylinder 32 vibrations, steel ladle 12 can not can vibrate from structure.

Bearing block 400 is connected with second counterweight 430 through first counterweight 431 with these suspension carriages.

Water supply line 722 is arranged in the casing 110, and water supply line 722 and outside watering are (for example: hose) be connected.Control piece switch control feed water valve 720 supplies water to steel ladle 12 via water supply line 722.The end of water supply line 722 is connected with the anterior part or the preceding liner 200 of steel ladle 12, so that part supplies water in steel ladle from the front portion.If along water supply line 722 detergent box 710 is set, then water can be supplied with cleaning agent.

Simultaneously, circulating pump 730 can be arranged under the steel ladle 12, and circulating pump 730 makes the water circulation of steel ladle 12 dischargings, thereby makes it be fed to steel ladle again.If require water to be circulated in the washing machine according to second embodiment, then adjust valve 732 and circulating pump 730 is connected with recycle circuit 744 through circulating pump 730.The end of recycle circuit is connected with the anterior part or the preceding liner 200 of steel ladle, so that part is to the steel ladle private water supply from the front portion.If desired from the steel ladle draining, circulating pump 730 is connected so that draining with drain line 742.Although not shown in the figures, be configured to make the circulating pump of water circulation can divide and be arranged with the draining pump that is configured to draining.In the case, recycle circuit is connected with draining pump with circulating pump respectively with drain line.

Steel ladle 12 can be installed with chassis block 600 with cylinder 32 abreast, or presses predetermined angle incline ground with chassis block 600 and install.In the case, the rear portion of steel ladle 12 and cylinder 32 can be downward-sloping, so that the user is with the clothing cylinder 32 of more successfully packing into.

If clothing 1 is accommodated in the cylinder 30,32, and cylinder 30,32 rotates, will produce noise and vibration according to the position of clothing 1 in the washing machine according to above embodiment.For example, when the clothing of cylinder 30,32 in cylinder 30,32 distributes rotation under the uneven situation when (hereinafter, " eccentric rotation "), serious vibration and noise can take place.Especially, when drying and dehydrating cycle period, when cylinder 30,32 rotates at a high speed, vibration and noise will be problems.

Therefore, washing machine can comprise ball balancer 70,310 and 330, to prevent producing vibration and noise because of the off-centre rotation of cylinder 30,32.Ball balancer 70,310 and 330 can be arranged on anterior part or rear portion, and perhaps anterior part, rear portion all have.

Ball balancer 70,310 and 330 is installed to rotatable cylinder 30,32, to reduce the degree of eccentricity.Therefore, ball balancer 70,310 and 330 can have the barycenter of movable change.That is to say that ball balancer (70,310 and 330) can comprise ball 72,312 and 332 and the path, ball has predetermined weight, and ball can along the circumferential direction move in this path.

The frictional force that produces when particularly, ball is because of cylinder 30,32 rotations is rotated.When cylinder rotated, ball was not to remain in the cylinder, and by rotating with the cylinder different speed.Here, the clothing that produces the degree of eccentricity closely contacts with the inwall of cylinder, and can be to rotate with cylinder speed much at one owing to the lifting of sufficient frictional force and inwall.Therefore, the rotary speed of clothing and ball is different.Have the beginning revolving process of relative low speed at cylinder, the rotary speed of clothing is faster than the rotary speed of ball.Accurately, the angular speed of clothing is faster than the angular speed of ball.And, the differing of ball and locker room, promptly the differing of pivot with respect to cylinder can continuously change.

If the rotary speed of cylinder accelerates, then owing to centrifugal force, ball will closely contact with the external peripheral surface of mobile route.Simultaneously, be about 90 ° to 180 ° position, the ball alignment differing of ball and clothing.If the rotary speed of cylinder is a predetermined value or more, it is fully big that centrifugal force becomes, and the centrifugal force between this circumferential surface and the ball becomes predetermined value or more, makes that ball can be by the speed rotation identical with cylinder.In the case, ball is by the speed identical with cylinder rotation, and to maintain with differing of clothing be the position of 90 ° to 180 ° (preferred about 180 °).In this manual, for simplicity, the situation that ball rotates with respect to cylinder in the precalculated position will be mentioned is " degree of eccentricity correspondence position " or " the ball balance ".

Therefore, when predetermined portions in cylinder 30,32 of the load centralization of clothing, the ball that is arranged in ball balancer 70,310 and 330 moves to degree of eccentricity correspondence position, to reduce the degree of eccentricity.

Simultaneously, cylinder can be driven by variety of way in above washing machine.That is to say that according to each washing, rinsing and drying and dehydrating circulation, can suitably confirm the drive actions of cylinder, perhaps the user can come suitably to confirm the drive actions of cylinder according to the characteristic of the program of selecting.As follows, detailed description is applicable to the various drive actions according to control method of the present invention.

Fig. 4 is the figure that various drum driven actions are shown.Fig. 4 schematically shows the front view of cylinder with the rotation of demonstration cylinder.According to Fig. 4, the inside of cylinder is divided into four parts by counter clockwise direction, and this four part is defined as first quartile, second quadrant, third quadrant and four-quadrant, to explain the position of clothing according to the anglec of rotation of cylinder.

With reference to Fig. 4, the drum driven action can embody through direction of rotation, rotary speed and the anglec of rotation of combination roll.And because the drum driven action, the clothing that is positioned at cylinder can have different falling directions, setting point and impact when falling.Relatively, the clothing in the cylinder can have different motions.Various drum driven actions can be configured to make the cylinder motor rotating to embody through control.

Simultaneously, when cylinder rotated, clothing was promoted by the lifter (referring to 132 among 31 among Fig. 1 and Fig. 3) of the inner circumferential surface that is arranged on cylinder.Therefore, the rotary speed of cylinder, direction of rotation and the anglec of rotation are controlled, and therefore the impact that is applied to clothing can change.That is to say, be applied to the mechanical force of clothing, the friction that produces between friction, clothing and the water that for example locker room produces and the decline of clothing are impacted and can be changed, to impacting or therefore variation of the degree of washing by rubbing with the hands of clothing.In addition, the rotary speed of cylinder, direction of rotation and the anglec of rotation can be controlled, and therefore the distribution of the clothing in cylinder or upset degree can change.

Therefore, the control method of washing machine can provide various drum driven actions, and the drum driven action is according to each circulation and form the concrete steps variation that circulates, and makes optimal mechanical power can be used to process clothes.Thus, the detersive efficiency of clothing can be improved, and the best required time of drum driven action can be shortened.

Simultaneously, motor can be divided into the direct-connected direct-type of axle and the indirect type that is configured to transmit to cylinder via pulley etc. revolving force with cylinder.In order to realize various drum driven actions, motor 170 can be and the direct-connected direct-type of cylinder.Consider the direction of rotation and the torque of motor, time delay or idle running (backlash) can be prevented from, and in direct-type, the action of motor spontaneously (spontaneously) is delivered to cylinder.

Drum driven action by scroll actions, the action of rolling, stepwise operation, rocking action, wash action etc. by rubbing with the hands and constitute.As follows, will describe each action in detail.

Fig. 4 (a) is the figure that scroll actions is shown, and every width of cloth of Fig. 4 illustrates direction of rotation and the anglec of rotation and the motion of clothing in cylinder of cylinder, thereby explains each action.

With reference to Fig. 4 (a); In scroll actions; Motor 40,170 makes cylinder 30,32 rotate continuously along predetermined direction, be positioned on the inner circumferential surface of cylinder, along the clothing of the direction of rotation rotation of cylinder from drop to the minimum point of cylinder approximately less than the position of 90 ° angle.

That is to say; In case motor 40,170 makes cylinder rotate with about 35RPM to 45RPM; The clothing that is positioned at the minimum point of cylinder 30,32 is just risen to predetermined altitude by the direction of rotation along cylinder 30,32, then from respect to the minimum point of cylinder less than 90 ° position rolling movement minimum point to cylinder.If cylinder is rotated in a clockwise direction, then clothing rolls in the third quadrant of cylinder.Clothing through in scroll actions with the friction of water, be washed with the friction of clothing and with the friction of the inner circumferential surface of cylinder.Scroll actions can fully be implemented the upset of clothing, to produce the soft clean result of washing shape by rubbing with the hands.

Simultaneously, if the cylinder rotation, then the cylinder RPM of drum driven action is by confirming with the relation of centrifugal force.That is to say that the RPM of cylinder is big more, the centrifugal force that the clothing in the cylinder produces is big more.If centrifugal force is greater than gravity, then clothing will be attached to the inner circumferential surface of cylinder.If centrifugal force is less than gravity, then clothing can drop to the lower surface of cylinder.Therefore, the motion of clothing can be changed by the relative size between centrifugal force and gravity in the cylinder.When definite cylinder RPM, possibly consider the revolving force of cylinder and the frictional force of cylinder and locker room.

In above scroll actions, cylinder RPM is determined to be and makes centrifugal force less than gravity.That is to say that in this scroll actions, clothing tumbles with the rotation of cylinder, so centrifugal force must be less than gravity.

Fig. 4 (b) is the figure that the action of rolling is shown.

With reference to Fig. 4 (b), in the action of rolling, motor 40,170 makes cylinder 30,32 rotate continuously along predetermined direction, is positioned at clothing on the inner circumferential surface of cylinder drops to cylinder from about 90 ° to the 110 ° position with respect to the direction of rotation of cylinder minimum point.

In the action of rolling, have only index drum to rotate with suitable RPM along predetermined direction, just can produce mechanical force between clothing and the cylinder.Thus, in washing and rinsing, use the action of rolling usually.

That is to say that before motor 40,170 was driven, the clothing in the cylinder 30,32 of packing into was positioned at the minimum point of cylinder 30,32.When motor 40,170 when cylinder 30,32 provides torque, cylinder 30,32 rotation, the lifter 132 that is arranged in the inner circumferential surface of cylinder makes clothing rise to predetermined altitude from the minimum point of cylinder.If motor 40,170 makes cylinder 30,32 rotate with about 46RPM to 50RPM, clothing will drop to the minimum point of cylinder from about 90 ° to the 180 ° position with respect to the direction of rotation of cylinder.In the action of rolling, cylinder RPM is confirmed as the centrifugal force that produces when the centrifugal force that produces in the action of rolling is rotated greater than cylinder, and less than gravity.

The action intermediate roll is rotated in a clockwise direction if roll, and then clothing is risen to second quadrant by the minimum point from cylinder, drops to the minimum point of cylinder then.Therefore, the action of rolling makes the clothing can be through with the fricative impact of water with descend to impacting and be washed.In the action of rolling, can use the mechanical force bigger to implement washing and rinsing than the mechanical force of scroll actions.And the action of rolling is the action that clothing is descended in cylinder, is effective aspect its clothing that tangles in separation, the uniform distribution clothing.

Fig. 4 (c) is the figure that stepwise operation is shown.

With reference to Fig. 4 (c), in stepwise operation, motor 40,70 makes cylinder 30,32 along predetermined direction rotation, is positioned at clothing on the inner circumferential surface of cylinder and is controlled as the minimum point that drops to cylinder from the about 180 ° peak with respect to the direction of rotation of cylinder.

In case motor 40,170 makes cylinder 30,32 with about 60RPM to 77RPM or higher RPM rotation, clothing just can not descend up to the peak that arrives cylinder by the centrifugal force rotation.In stepwise operation, if clothing arrives near the peak, braking suddenly is applied to the impact of clothing with maximization to cylinder application.

Make cylinder 30,32 by predetermined speed (about 60RPM is to 70RPM or the more) rotation that clothing is descended; After clothing arrives the peak of cylinder through use centrifugal force; When clothing was positioned at peak near cylinder (with respect to 180 ° of the direction of rotation of cylinder), motor 40,170 was controlled so as to cylinder 30,32 supply opposing torques.The direction of rotation of clothing from the minimum point of cylinder along cylinder promotes.After this, when cylinder stopped because of opposing torque moment of motor, clothing dropped to minimum point from the peak of cylinder 30,32.Therefore, stepwise operation can be washed clothing through the impact that clothing produces when maximum height descends.The mechanical force that produces in this stepwise operation is greater than above-mentioned scroll actions or wash the mechanical force that produces in the action by rubbing with the hands.

If as in stepwise operation, use braking suddenly, motor 40,170 can be by plugging.Plugging is a kind of through the motor braking type of use with respect to the torque of the opposite direction generation of the direction of rotation of motor.The phase place that is applied to the electric current of motor can be reversed and become to be used to produce opposing torque, and plugging makes unexpected braking can be applied to motor.Therefore, for the stepwise operation that is configured to clothing is used thump, the brakes that plugging is best suited for.

According to Fig. 4 (c), in stepwise operation, after the minimum point from cylinder sequentially moved to peak via the third quadrant and second quadrant, if cylinder rotation, clothing dropped to the minimum point in the inner circumferential surface of cylinder.Because the dropping distance in the stepwise operation intermediate roll is maximum, so mechanical force may be used on small amount.

Therefore, motor 40,170 is again to cylinder 30,32 application of torque, and motor rises to peak along the clothing that identical direction of rotation will be positioned at the minimum point of cylinder.That is to say that application of torque makes after cylinder is rotated in a clockwise direction, when clothing arrived peak, application of torque made cylinder along rotation counterclockwise, and then cylinder stops suddenly.After this, torque is applied to cylinder so that be rotated in a clockwise direction again, embodies stepwise operation.Therefore; A kind of like this action of stepwise operation; It is used for coming washing clothes through using water and the friction between the clothing that sucks via the through hole that is formed at cylinder (see Fig. 3 134) and using the impact that when clothing arrives the peak of cylinder, is descended and produced by clothing.

Like 4 (d) is the figure that rocking action is shown.

With reference to Fig. 4 (d), in rocking action, motor 40,170 make cylinder 30,32 along clockwise direction with rotation counterclockwise alternately, clothing descends in about 90 ° to the 130 ° positions with respect to the direction of rotation of cylinder.

That is to say that in case motor 40,170 makes cylinder 30,32 along counterclockwise rotating with about 40RPM, the clothing that is positioned at the minimum point of cylinder 30,32 promotes predetermined altitude along counter clockwise direction.Through with respect to anticlockwise 90 ° of positions of cylinder the time, motor stops the rotation cylinder at clothing, and clothing is from dropping to the minimum point of cylinder with respect to anticlockwise 90 ° to the 130 ° positions of cylinder.

Therefore, motor 40,170 makes cylinder 30,32 along clockwise direction with about 40RPM rotation, so that clothing promotes predetermined altitude in the direction of the clock along the direction of rotation of cylinder.Through behind the anticlockwise 90 ° of positions with respect to cylinder, motor stops the rotation cylinder at clothing, and clothing is from dropping to the minimum point of cylinder with respect to clockwise 90 ° to the 130 ° positions of cylinder.

That is to say that rocking action is a kind of like this action, wherein with respect to the rotation of predetermined direction with stop and with respect to reciprocal rotation with stop and to repeat.The clothing that rises to the part of second quadrant from the third quadrant of cylinder mildly descends, and it is risen to the part of first quartile so that repeatedly mildly descend again by the four-quadrant from cylinder.Therefore, in rocking action, clothing can be on the third quadrant of cylinder and four-quadrant with the shape movement of sidewards (sided) " 8 ".

At this moment, motor 40,170 can use the braking of rheostat type.According to the braking of rheostat type, if be applied to the current interruptions of motor, then owing to rotatory inertia, motor is used as generator.If be applied to the current interruptions of motor, then the moving sense of current of the coil midstream of motor will become the opposite direction of the preceding electric current of power-off, and power (Fleming's right-hand rule) is by the direction application along the rotation of interference motor, so that motor braking.Different with plugging, the braking of rheostat type can not make motor brake suddenly, but it can make the direction of rotation of cylinder mildly change.Therefore, rocking action is fit to the braking of rheostat type, and the load of motor 40,170 is reduced as far as possible.In addition, the mechanical wear of motor 40,170 can be minimized, and the impact that is applied to clothing can be adjusted simultaneously.

Fig. 4 (e) illustrates the figure that washes action by rubbing with the hands.

With reference to figure (e); In washing action by rubbing with the hands; Motor 40,170 make cylinder 30,32 along clockwise direction with rotation counterclockwise alternately, plugging is applied to cylinder, makes clothing to descend from about 130 ° to the 160 ° position with respect to the direction of rotation of cylinder.

That is to say that in case motor 40,170 makes cylinder 30,32 along counterclockwise rotating with about 60RPM, the clothing that is positioned at the minimum point of cylinder 30,32 is just promoted predetermined altitude along counter clockwise direction.Through after the anticlockwise about 90 ° of positions with respect to cylinder, motor is that cylinder provides reactive torque temporarily to stop cylinder at clothing.If the clothing that is positioned on the inner circumferential surface of cylinder like this, will descend rapidly.

Therefore, motor 40,170 makes cylinder along clockwise direction with about 60RPM rotation, so that the clothing that descends is promoted predetermined altitude along clockwise direction.Through after the anticlockwise 90 ° of positions with respect to cylinder, 40,170 pairs of cylinders of motor 30,32 are used opposing torque, and the rotation of cylinder temporarily stops at clothing.Therefore, be positioned at clothing on the inner circumferential surface of cylinder from drop to the minimum point of cylinder with respect to clockwise about 130 ° to 160 ° positions of cylinder.

Therefore, in washing action by rubbing with the hands, clothing can descend to be washed rapidly from predetermined altitude.Here, motor 40,170 can be by plugging to stop cylinder.

In washing action by rubbing with the hands, the direction of rotation of cylinder changes rapidly, and clothing maybe be to a great extent on the inner circumferential surface of cylinder.Therefore, in washing action by rubbing with the hands, can realize washing by rubbing with the hands by force the clean result of shape.In washing action by rubbing with the hands, repeat following process, the clothing that moves to the part of second quadrant via third quadrant descends rapidly, after a part that moves to first quartile via four-quadrant again, to descend again.Therefore, in washing action by rubbing with the hands, the clothing of lifting repeatedly descends along the inner circumferential surface of cylinder.

Fig. 4 (f) is the figure that filter action is shown.In filter action, motor 40,170 makes cylinder 30,32 rotation, so that clothing can not descend from the inner circumferential surface of cylinder, and water is injected in the cylinder.

That is to say that in filter action, when the inner circumferential surface of clothing and cylinder rotated in intimate contact after disperseing, water was injected in the cylinder.Water is discharged steel ladle 120 through centrifugal force by the through hole from clothing and cylinder.Because filter action is widened the surface area of clothing, it makes water can pass through clothing, can make washings can pass through clothing, and can make washings be fed to clothing equably.

Fig. 4 (g) is the figure that the extruding action is shown.In the extruding action, motor 40,170 makes cylinder 30,32 rotations, so that clothing can be because of the inner circumferential surface of centrifugal force from cylinder do not descend, after this, motor reduces the rotary speed of cylinder 30,32, so that clothing separates with the inner circumferential surface of cylinder.Repeat this process, and during the rotation of cylinder, water is ejected in the cylinder.

That is to say that in filter action, cylinder does not rotate from the speed that the inner circumferential surface of cylinder descends enough to make clothing continuously.By contrast, the rotary speed of cylinder changes, and closely contacts the clothing in the inner circumferential surface and makes clothing and the inner peripheral surface separating process repeating.

The process that in filter action and extruding are moved, ejects water to cylinder 30,32 can use circulating path and pump (though not shown among Fig. 1) to implement.Pump communicates with the lower surface of steel ladle 120, and it is exerted pressure to washings.The end of circulating path is connected with pump, and the other end via circulating path is ejected into cylinder to water from the top of cylinder.

Under the situation of the water that in spraying steel ladle, holds, circulating path of more than mentioning and pump are necessary elements; The present invention can not get rid of the situation of the path water spray that is connected via the outside watering outer with being positioned at casing.

Simultaneously, Fig. 5 is the figure that stepwise operation more clearly is shown.In case to cylinder 30,32 application of torque, cylinder is just along the predetermined direction rotation along predetermined direction for motor 40,170, clothing is raised under the state of the inner circumferential surface that closely contacts cylinder.At this moment, clothing can be by about 60RPM or higher rotation, to promote the clothing that closely contacts with the inner circumferential surface of cylinder.Here, through confirming the rotary speed of cylinder with the relation of the internal diameter of cylinder, and the rotary speed of confirming can make centrifugal force greater than gravity.

Just before the peak of clothing process with respect to 90 ° of positions arrival cylinders of the direction of rotation of cylinder 30,32, motor 40,170 pluggings are to stop the rotation of cylinder temporarily.Time point and the position of clothing in cylinder with respect to the plugging of motor 40,170 are closely related.Thus, can be provided with and be used for confirming or the equipment of the position of expection clothing, comprise that the sensor device of the hall effect sensor of the anglec of rotation that is configured to confirm rotor can be one of example.

Control piece can be confirmed the direction of rotation and the anglec of rotation of rotor through using Hall element.This technical characterictic is those skilled in the art's a common practise, therefore will omit its detailed description.

Control piece can be confirmed the anglec of rotation of cylinder through the usability measurement equipment, and before cylinder has 180 ° the anglec of rotation, controls motor 40,170 and carry out plugging.Here, the meaning of plugging is to use reversing the current, with along the opposite spin cylinder.For example, making to the motor application electric current after cylinder is rotated in a clockwise direction, use reversing the current rapidly so that cylinder is rotated in a clockwise direction.

Therefore, the cylinder that is rotated in a clockwise direction stops at once, and the anglec of rotation of this moment is basically at 180 °, so that clothing drops to minimum point from the peak of cylinder.After this, lasting applied current is rotated in a clockwise direction cylinder.

Fig. 5 illustrates the cylinder that is rotated in a clockwise direction.Here, when cylinder when counterclockwise rotating, can implement stepwise operation.Here, stepwise operation produces a large amount of loads to motor 40,170, and the clean effect of stepwise operation can reduce than (net acting ratio).

Clean effect is than being the motor-driven time and the ratio of the total value of the driving time of motor 40,170 and dwell time.If act on only than being " 1 ", then the meaning is that motor is not had the driving of dwell time ground.Consider the load of motor, stepwise operation can be implemented by 70% of approximately clean effect ratio.For example, drive motors can stop 4s after driving 10s.

Fig. 6 more clearly illustrates the figure that washes action by rubbing with the hands.In case the clothing in 40,170 pairs of cylinder 30,32 application of torque of motor, cylinder just is rotated in a clockwise direction.Here, motor 40,170 can be controlled so as to and make cylinder 30,32 with about 60RPM or higher rotation, so that make the clothing rotation that closely contacts with the inner circumferential surface of cylinder.After this, when clothing through with respect to 90 ° of positions of the direction of rotation of cylinder the time, motor 40,170 is by plugging, clothing that closely contact with the inner circumferential surface of cylinder so the minimum point that drops to cylinder.

When clothing dropped to minimum point, 40,170 pairs of cylinder application torques of motor made cylinder along rotation counterclockwise.Therefore, rotate along counter clockwise direction with the clothing that the inner circumferential surface of cylinder closely contacts.When clothing and between the peak of the cylinder of minimum point the time with respect to anticlockwise 90 ° of positions, motor is by plugging, drops to the minimum point of cylinder with the clothing that the inner circumferential surface of cylinder closely contacts.

As stepwise operation, above-mentionedly wash action by rubbing with the hands and produce a large amount of loads be applied to motor 40,170.Therefore, the clean effect ratio of washing action by rubbing with the hands can reduce.For example, wash action by rubbing with the hands and implement 10s, after this stop 4s, it is 70% that this process repeats to make clean effect ratio.

Although not shown in the figures, wash the rheostat type braking that the type of retardation of motor in the action becomes rocking action by rubbing with the hands.In the moment when time point of rheostat type braking becomes clothing and arrives 90 ° of positions with respect to the direction of rotation of cylinder, therefore will omit detailed description to rocking action.

Fig. 7 illustrates the washability of each action more shown in Figure 4 and the figure of level of vibration.Trunnion axis is represented washability, is moved to the left the dirt that is comprised in the easy separation clothing more more.Vertical axes is represented vibration or noise level, and the level of vibration that moves up more is high more, and the wash time of identical clothing shortens.

When clothing was dirty especially, stepwise operation was to be suitable for those to be embodied as the washing procedure that is used to shorten wash time with washing action by rubbing with the hands.Stepwise operation with wash action by rubbing with the hands and have high vibration/noise level, so they are not suitable for those and are embodied as and are used to wash sensitive fabrics (sensitive fabric) and make the minimized washing procedure of noise and vibration.

Scroll actions has good washability and low noise level, has minimized laundry damage and low motor load.Therefore, scroll actions can be suitable for all washing procedures, especially is suitable for dissolving cleaning agent and being suitable for the clothing of getting wet in the initial wash stage.

The action of rolling has than washes by rubbing with the hands the low washability of action, and washes the centre is compared in action with scroll actions noise level by rubbing with the hands.Scroll actions has than low noise level, but has than rolls the longer wash time of action.Therefore, roll and move, and needing to be suitable for the washing procedure of uniform distribution clothing applicable to all washing procedures.

Extruding action has the washability that being similar to the action of rolling and moves higher level of vibration than rolling.Extruding action repetition closely contacts the clothing in the inner circumferential surface of cylinder and makes clothing and the inner circumferential surface separating process of cylinder, and in this process, washings are being discharged to outside the cylinder after passing through clothing.Therefore, the extruding action is suitable for rinsing.

Filter action has the washability and the noise level that be similar to scroll actions lower than the extruding action.In filter action, water process clothing also is discharged to outside the cylinder, and wherein clothing closely contacts with the inner circumferential surface of cylinder.Therefore, filter action is suitable for the program that need get clothing wet.

Rocking action has lowest vibration level and washability, and it is suitable for low noise and low vibration washing procedure, and the program that is suitable for washing fragile clothes.

As stated, each drum driven action all has merits and demerits, preferably suitably uses those various drum driven actions.Aspect the relation of laundry amounts, each drum driven action can have merits and demerits.Even under the situation of same program and circulation, can with respect to the relation of laundry amounts, suitably use various drum driven actions.

As follows, the control method that description is comprised the washing machine of above-mentioned drum driven action.Washing machine generally includes washing, rinsing and drying and dehydrating circulation, will describe those circulations from now on.Here, wash cycle be various programs a part or its can independently implement.

Wash cycle can comprise the water supply step, and it is configured to steel ladle 12,20 or cylinder 30,32 supply water and cleaning agents, in water, to dissolve cleaning agent.That is to say that water and cleaning agent mix supply, with washing clothes.In addition, wash cycle can comprise main washing step, and it is configured to head roll and comes washing clothes.Here, water supply step can be the preparation process of main washing step.Therefore, preferably improve the efficient of water supply step, with the efficient (comprise detersive efficiency and shorten time efficiency) of improving wash cycle.

Wash cycle can comprise: clothing get wet step and/or the heating steps of between water supply step and main washing step, implementing.To describe control method after a while, and will be described in greater detail about the water supply step of wash cycle.

In the water supply step, control piece is to steel ladle 12,20 supplying washing water.Particularly, control piece is opened feed water valve 720, and supplies water to steel ladle 12, and wherein water is through water supply line 722 and detergent box 710.

Because cleaning agent is supplied with water in the water supply step, thus during the water supply step, can implement detergent fully, to improve the efficient of wash cycle.Therefore, in the water supply step, can implement prior defined procedure and come the expedite clean-up agent in water, to dissolve.If water partly contacts with clothing between delivery period, the water clothing of can not getting wet equably then, the efficient of wash cycle possibly reduce.Although the clothing step of getting wet is set in the wash cycle, the step that supplies water can comprise that water makes the process of clothing uniformly wet.As follows, with the various embodiment that describe detergent accelerator and uniformly wet clothing process.

At first, be expedite clean-up agent dissolving, the action (drum driven action) of the clothing in the traveling roller can be used strong mechanical force to water and clothing.Therefore, because the clothing that promotes along swing roller leaves the inner circumferential surface of cylinder because of the braking of cylinder descends, and,, dissolve with the expedite clean-up agent so stepwise operation preferably is in the water supply step because this repeats in stepwise operation.Certainly, in the water supply step, the clothing that can implement to promote along the cylinder of rotation repeatedly descends with reverse rotation because of the braking of cylinder and lifting wash action by rubbing with the hands.Stepwise operation with wash by rubbing with the hands in the action, postrotational cylinder stops rapidly, the moving direction of clothing changes rapidly.Therefore, they can be the actions that can use thump to clothing and water, and making can provide strong mechanical force in the starting stage of water supply step, and detergent can be accelerated, and only improve the efficient of wash cycle.

But through repeating stepwise operation and the sequential combination expedite clean-up agent dissolving of washing action by rubbing with the hands.In the case, dissimilar drum driven actions are combined, and the type of sports of clothing and current type can variations.Therefore, can more efficient of improving wash cycle more.

As stated, water supply step is the preparation process of main washing step.Therefore, in the water supply step, detergent and clothing are got wet and must be implemented rapidly and fully, and they can be implemented regardless of the amount of clothing.Yet, consider the limited capacity of cylinder, can be supplied to the limited water of cylinder, can come differentially to control the drum driven action of water supply step according to laundry amounts.This is because can realize that the drum driven of the maximum efficiency that detergent and clothing are got wet is moved can be according to laundry amounts and different.

Before the water supply step, can implement to be configured to confirm that the laundry amounts of the amount of the clothing that holds in the cylinder is confirmed step.Confirm the result of step can differentially control water supply step intermediate roll drive actions according to laundry amounts.

This laundry amounts is confirmed and can be implemented through measuring the required electric current of swing roller.For example, can measure and implement to roll the required electric current of action.If cylinder rotation, then being used by control piece can be according to laundry amounts and difference with the current value of the action of implementing to roll, and laundry amounts can be determined.

If it is the laundry amounts level preset or higher that laundry amounts is confirmed in the step laundry amounts of confirming, then can be controlled to be the unreal process of executing detergent.That is to say,, can be controlled to be the process of implementing to be configured to expedite clean-up agent dissolving if laundry amounts is lower than preset level.This is more effective under the little situation of laundry amounts because of the drum driven action that can supply strong mechanical force, also can fully be got wet by water because of a spot of clothing.That is to say that a spot of clothing means that the surface area that clothing need contact with water is little, detergent and clothing are got wet and can be implemented through being used for the roll mechanical force of clothing of short time.Therefore, the effect of main washing can or be washed action part by rubbing with the hands and realize through stepwise operation, and implements the effect of required shortening time of main washing and can expect.

By contrast, under the big situation of laundry amounts, mechanical force maybe be inadequate, and clothing possibly contact insufficient with water.When clothing was rubbed wrinkle, water can not be by ample supply to the object of rubbing in the wrinkle clothing.

Therefore,, then omit the process that detergent is quickened, and can begin the clothing step of getting wet if laundry amounts is the level preset or higher.When laundry amounts is the level preset or when higher, more preferably quicken the dissolving of the cleaning agent that clothing and water fully contacts.For this reason, in the water supply step, can implement to be configured to make the water circulation that holds in the steel ladle so that it is fed to the circulation step of cylinder again.

According to the washing machine of above-mentioned second embodiment, steel ladle 12 directly is fixed to casing 110, and cylinder 32 is arranged in the steel ladle 12.Owing in washing machine, have only cylinder 32 rotation, and steel ladle 12 installations that be fixed, so importantly prevent during cylinder rotates, coming in contact between the cylinder 32 and steel ladle 12 according to second embodiment.Therefore, compare with the situation in the conventional washer, the steel ladle 12 and the distance between the cylinder that in this washing machine, form can be bigger.

If the distance between steel ladle 12 and the cylinder 32 is widened, then the clothing in the cylinder 32 possibly fully not got wet during water is fed to steel ladle.In order when supplying water, clothing can fully to be got wet, according to the washer operation circulating pump 730 of second embodiment, the water that holds in the steel ladle is capable of circulation.For example, can continuously or press predetermined space ground and drive circulating pump 730, wherein feed water valve is opened.

According to the washing machine of second embodiment, cylinder 32 is connected with steel ladle back 30.Steel ladle back 130 is supported by suspension unit 180 via bearing block 400, and is not to be supported by steel ladle 12.Therefore; With according in the washing machine of first embodiment by comparing with the cylinder 30 that steel ladle 12 direct-connected steel ladle backs 130 are supported; The anterior part of the cylinder 32 that is provided with in the washing machine according to second embodiment, especially cylinder 32 has the bigger free degree.

If water is supplied to steel ladle 12, then water supply line 722 supplies water with the anterior part of recycle circuit 744 at steel ladle 12, and the clothing that is arranged in the anterior part of cylinder can be got wet earlier.Therefore, the anterior load partly that is applied to cylinder 32 is greater than the load that is applied to rear portion, and the anterior part of cylinder 32 can be downward.If the anterior part of cylinder downwards, the noise that then produces during the rotation of cylinder will increase with vibration, and What is more, and it will contact with the inner surface of steel ladle 12.Therefore, need be in according to the washing machine of second embodiment between delivery period, get wet the equably anterior part that is positioned at cylinder 32, the clothing of rear portion.

As follows, when implement supplying water in the washing machine that is described in according to a second embodiment of the present invention, be positioned at the control method of clothing of anterior part, the rear portion of cylinder according to the embodiments of the invention uniformly wet.

If in the water supply step according to the control method of first embodiment, supply water, circulating pump 730 is actuated to make water circulation, and cylinder 32 is driven simultaneously.When cylinder 32 was driven, control piece was according to the action of washing by rubbing with the hands of above-mentioned drum driven action, and index drum 32 is driven.

According to the distance between cylinder in the washing machine of second embodiment 32 and the steel ladle 12 greater than the distance between them in the conventional washer.Therefore, when between the delivery period in conventional washer, when action was rolled in 32 application to cylinder, the clothing that is positioned at the rear portion of cylinder can not fully be got wet.That is to say, because the gap between cylinder 32 and the steel ladle 12 is greater than the gap that forms in the conventional washer, so the rotation of cylinder will can not promote the water between cylinder and steel ladle, the clothing of the rear portion that is positioned at cylinder can not got wet.

Therefore, when implementing the water supply step, implement to wash by rubbing with the hands the action rather than the action of rolling according to this control method.As stated, wash action by rubbing with the hands and make cylinder with the RPM rotation higher than the action of rolling, the water between cylinder 32 and steel ladle 12 drops on the clothing because of the rotation of cylinder 32 is raised.

Especially, in the washing machine according to second embodiment, both rear portions of cylinder 32 and steel ladle 12 are oblique structure.Therefore, washing action by rubbing with the hands makes the water of the rear portion that is positioned at steel ladle 12 be fed to the top of clothing smoothly.And, wash action changes cylinder 32 along clockwise direction rapidly with counter clockwise direction direction of rotation by rubbing with the hands.Therefore, inverted orientation is applied to cylinder and can in washings, produces vortex rapidly, makes that the anterior part that is positioned at cylinder, the clothing of rear portion can be got wet equably.

When opening feed water valve 720 for water supply, drive and swing roller 32, clothing moves cylinder 32 in according to the driving of cylinder 32.In the case, via the water of water supply line 722 supplies that are connected with the anterior part of steel ladle 12, but major part is fed to the mobile clothing of the anterior part that is positioned at cylinder 32, and be positioned at anterior clothing than the clothing at the rear portion that is positioned at cylinder 32 wet soon.

, feed water valve 720 reaches predetermined water level after supplying water, according to the control method of second embodiment head roll 32 not through the scheduled time or water.If continue the scheduled time or reach not head roll 32 of predetermined water level, but be collected in the bottom of steel ladle 12 via the water major part of water supply line 722 supplies up to water.Here, can consider that the distance between steel ladle 12 and the cylinder confirms predetermined water level.According to steel ladle 12 and the capacity of cylinder 32 and the amount of clothing, can confirm the scheduled time.

Especially, the downward-sloping installation in rear portion of the steel ladle 12 in the above-mentioned washing machine, a large amount of water is collected in the rear portion of steel ladle 12.When cylinder 32 rotated in the given time, the clothing that is arranged in the rear portion of cylinder 32 can be got wet by the water that collect at the rear portion of steel ladle 12.When according to the control method head roll 32 of second embodiment, the drum driven action can be presented as rolls action or washes action by rubbing with the hands.

If feed water valve 720 is opened to supply water according to the control method of second embodiment not head roll 32, then feed water valve 720 can be switch control.That is to say that when feed water valve 720 was opened water supply, water can have predetermined pressure owing to the hydraulic pressure of outside watering (for example hose).In the case, can be fed to the front portion of cylinder by hydraulic pressure, be positioned at the clothing of the front portion of cylinder to get wet via the water of water supply line 722 supply.

Therefore, when in according to the control method of second embodiment, implementing to supply water, feed water valve 720 open and close repeatedly, rather than open constantly.The water that feed water valve 720 can be controlled so as to supply is switched on or switched off, so that the glassware for drinking water of supply has predetermined hydraulic pressure and do not flow directly in the cylinder 32.Here, the hydraulic pressure that water is not flowed directly in the cylinder can be represented a kind of like this hydraulic pressure, and it can make the water via water supply line 722 supplies fall and be collected in the bottom of steel ladle 12 along cylinder, steel ladle or door, rather than is ejected in the cylinder by hydraulic pressure.The water that falls along cylinder, steel ladle or door can be collected in the rear portion of steel ladle 12, and description after this is similar to the above description of mentioning.Therefore will omit the description of repetition.

Simultaneously, when in the water supply step, supplying water, clothing can be rubbed wrinkles into one, and the clothing of part amount of can getting wet.Especially, the clothing that is positioned at the center of the clothing group of rubbing wrinkle possibly not wet, and the clothing that only is positioned at the outside of the clothing group of rubbing wrinkle is got wet.If have only the part clothing to be got wet, in wash cycle, can not successfully implement washing so, just reduce detersive efficiency.If it is agglomerating that clothing is rubbed wrinkle, description is configured to the control method according to the 3rd embodiment that uniformly wet is rubbed the clothing of wrinkle.

Control piece is opened the feed water valve 720 that is used to supply water, and it drives circulating pump 730 and makes water circulation simultaneously.Control piece can be in filter action head roll 32.

That is to say, but the control piece index drum is with predetermined RPM rotation.Here, predetermined RPM is determined to be and clothing can closely contact and can be because of the RPM of gravity decline with the inwall of cylinder.Therefore; Predetermined RPM can be set at make the cylinder that is applied to rotation centrifugal force greater than acceleration of gravity; Predetermined RPM can be set at lower than the excessive period (excessive period) of the generation resonance (about 200RPM is to 350RPM) of washing machine; If cylinder is to be higher than the RPM rotation than this excessive period, then the noise of resonance generation can significantly increase with vibration.Therefore, predetermined RPM can be set in about 100RPM to 170RPM.

In case control piece makes cylinder 32 with predetermined RPM rotation, clothing is because centrifugal force and closely contacting with the inwall of cylinder 32, distributes via the rotation according to cylinder 32 of the water of recycle circuit 744 and water supply line 722 supplies.The water that distributes is supplied to cylinder 32, towards the clothing of the inwall that is pasting cylinder 32, makes clothing to be got wet equably.

Simultaneously, describe being applied to control method washing machine, that be configured to the uniformly wet clothing, but the invention is not restricted to this according to second embodiment.For example, this control method is applicable to the washing machine according to first embodiment.

In the water supply step, can implement one of the process of above-mentioned detergent acceleration and process of uniformly wet clothing, perhaps the both implements.These two processes all can sequentially or repeatedly be implemented, and sequentially or oppositely implement, and the various combinations of two processes all are possible.

Therefore, the control piece index drum rotates in clothing is got step wet, with the clothing of getting wet.If water is not to heat, then can implement a heating steps, this heating steps is configured to use the heater that is provided with in the steel ladle to add hot water.After this, control piece is implemented main washing step through while head roll 32 and circulating pump 730.Drum driven action in the main washing step can be selected from the drum driven action according to the program that the user selects.Circulating pump 730 is driven by predetermined space, and the water that holds in the steel ladle 12 circulates.

Simultaneously, the cylinder in the tumbling-box washing machine can be seen from the outside via door 11.Can implement various drum driven actions according in the wash cycle of embodiment and the washing procedure that comprises wash cycle.Therefore, the user can see the various drum driven actions of directly in cylinder, implementing.That is to say that soft impact type washing (action of rolling), powerful impact type washing (stepwise operation), soft scrubbing type washing (scroll actions) and powerful scrubbing type washing (washing action by rubbing with the hands) can with the naked eye be discerned.Therefore, the user can experience washing and implemented well, and this can produce and improve the satisfied effect of user's sense organ, and the effect of improving detersive efficiency in fact.

Simultaneously, Fig. 8 illustrates the figure of the relation between expression quality and the intrinsic frequency.Suppose that in the vibrational system of two washing machines two washing machines have quality m0 and m1 respectively, maximum clothing capacity is respectively Δ m.So, the transition region of two washing machines can consider respectively that Δ nf0 and Δ nf1 confirm.Under this situation, with not considering the water yield that clothing comprises for the time being.

Simultaneously, with reference to Fig. 8, the washing machine of less quality m1 has the bigger transition region scope of washing machine of bigger quality m0.That is to say, consider that scope that laundry amounts changes transition region diminishes with the vibrational system quality and becomes greatly.

The scope of these transition regions will be looked back the washing machine of prior art and the washing machine of present embodiment.

The washing machine of prior art has such structure, wherein vibrates from cylinder to be delivered to steel ladle, causes the steel ladle vibration thus.Therefore, consider the vibration of the washing machine of prior art, steel ladle is absolutely necessary.Yet generally speaking, steel ladle not only has its deadweight, and also is useful on a large amount of counterweight (substantial weight) of balance at its front portion, rear portion or circumferential surface.Therefore, the washing machine of prior art has the vibrational system of very big quality.

Relative therewith, in the washing machine of present embodiment, owing to have supporting construction, make steel ladle not only not have counterweight but also separate, so when considering the vibration of cylinder, can not consider steel ladle with cylinder.Therefore, the washing machine of present embodiment can have the vibrational system of less relatively quality.

Then, with reference to Fig. 8, the washing machine of prior art has quality m0, and the washing machine of present embodiment has quality m1, causes the washing machine of present embodiment to have bigger transition region at last.

In addition, if simply consider the water yield that clothing comprises, the Δ m among Fig. 8 will become greatly, make the dimensional discrepancy of transition region even bigger.And because in the washing machine of prior art, even when cylinder rotates, water is broken away from from clothing, water also can drop to the steel ladle from cylinder, the quality that is caused by dehydration reduces little.Owing to consider vibration, the washing machine of present embodiment has steel ladle independent of each other and cylinder, and the water that still breaks away from cylinder influences the vibration of cylinder immediately.That is to say that in the washing machine of present embodiment, the influence that the quality of water changes in the clothing is with respect to the washing machine of prior art and Yan Gengda.

Under the influence of above reason,, can be similar to the beginning RPM in the transient state district of conventional washer according to the beginning RPM in the transient state district of the washing machine of present embodiment although the washing machine of prior art has the transition region of about 200～270rpm.Rise to according to the end RPM in the transient state district of the washing machine of present embodiment that to add the RPM that beginning RPM calculates than about 30% value by beginning RPM many.For example, the transient state district adds the RPM place end that beginning RPM calculates in about 80% value by beginning RPM.According to present embodiment, the transient state district can comprise the RPM band of about 200rpm to 350rpm.

Simultaneously, through reducing the oscillation intensity of cylinder, can reduce imbalance.For this reason, before the rotary speed of cylinder gets into transition region, carry out even clothing and disperse (step), so that clothing is scatter in cylinder.

Under the situation of using balancer, can consider such method, the rotary speed of its intermediate roll is through transition region, and the mobile that is provided with in the balancer simultaneously is positioned at imbalance (portion) opposite side (unbalance) of clothing.Under this situation, preferably mobile is positioned at the right opposite of uneven portion in the middle of transition region.

Yet, as stated, compare, according to the relative broad in transient state district of the washing machine of present embodiment with the transient state district of conventional washer.Therefore, even in the RPM lower than transient state district is with, implement the even dispersion steps or the ball balance of clothing, along with drum speed process transient state district, clothing also possibly mixed and disorderly perhaps balance possibly failed.

Therefore, through before the transient state district or meanwhile, in according to the washing machine of present embodiment, can implement once balance at least at drum speed.Here, balance may be defined as cylinder and reaches predetermined period by constant speed rotation.This balance allows the relative position of the mobile of balancer to clothing, only in order to reduce amount of unbalance.Relatively, the homodisperse effect of clothing.At last, when drum speed is implemented balance during through the transient state district, the noise and the vibration that produce because of the expansion in transient state district are able to prevent.

Here, when before drum speed is through the transient state district, implementing balance, can in the RPM band different, implement balance with the RPM of conventional washer.For example, if the transient state district begins at 200RPM, then in being lower than the RPM band of about 150RPM, implement balance.Because conventional washer has not too wide transient state district relatively, so even implement balance at the RPM that is lower than about 150RPM, drum speed is not difficult through the transient state district yet.Yet, have the transient state district of aforesaid wide relatively expansion according to the washing machine of present embodiment.If RPM low as in conventional washer implements balance, the position of these mobiles maybe be because of the balance multilated of under the situation of cylinder through the transient state district, implementing.Therefore, when before getting into the transient state district at drum speed, implementing balance, RPM compares with conventional balanced, can increase balance RPM according to the washing machine of present embodiment.That is to say,, then than the higher RPM band of the RPM that calculates by about 25% the value that deducts beginning RPM from beginning RPM, implement balance if confirm the beginning RPM in transient state district.For example, the beginning RPM in transient state district is about 200RPM, and balance can be implemented in being higher than the RPM band that 150RPM is lower than 200RPM.

In addition, between balance period, can measure amount of unbalance.That is to say that this control method can also be included in the step of balance period measurements amount of unbalance, and amount of unbalance that compares and measures and permissible amount of unbalance, this permissible amount of unbalance allows the acceleration of drum speed.If the amount of unbalance of measuring is less than permissible amount of unbalance, drum speed is accelerated after balance so that be in outside the transient state district so.By contrast, if the amount of unbalance of measuring is a permissible amount of unbalance or more, can implement the even dispersion steps of clothing again.In the case, permissible amount of unbalance can be different with the permissible amount of unbalance that allows initial acceleration.

In addition, will the vibration characteristics of washing machine according to an embodiment of the invention be described with reference to Fig. 9 now.

Rotary speed increase along with cylinder produces such zone (hereinafter, being called as " transient oscillation district "), has the irregular transient oscillation of high amplitude in this zone.In transfer of vibration to steady-state vibration district (hereinafter, being called as " steady-state zone ") before, transient oscillation district high amplitude takes place brokenly, and if design (washing machine) vibrational system, then this transient oscillation district has definite vibration characteristics.Although the transient oscillation district is according to the type of washing machine and difference, transient oscillation takes place in the scope of 270rpm about 200rpm.Transient oscillation is considered to caused by resonance.Therefore, necessary is to come the design balance device through the active balance of considering the transient oscillation district.

Simultaneously, as stated, in washing machine according to an embodiment of the invention, vibration source, promptly motor is connected with steel ladle 12 through back liner 250 with the cylinder that is connected with motor.Therefore, the vibration that takes place in the cylinder can be passed to steel ladle hardly, and cylinder is supported by damping unit and suspension unit 180 via bearing block 400.Therefore, steel ladle 12 can any damping unit and directly is fixed to casing 110.

Result as inventor's research of the present invention has found the vibration characteristics that does not observe usually in washing machine according to the present invention.According to general washing machine,, vibrate (displacement) and become stable through after the transient oscillation.Yet, in washing machine according to an embodiment of the invention, possibly produce such zone (hereinafter, being called as " irregular oscillation "), in this zone, vibration becomes steady and becomes greatly once more after through the transient oscillation district.For example, if the maximum cylinder displacement that in being lower than the RPM band in transient state district, produces or more, perhaps appear at the maximum cylinder displacement of the stable state step in the RPM band that is higher than the transient state district or more, then confirm to produce irregular oscillation.Alternatively, if produce average cylinder displacement in the transient state district, the average cylinder displacement in the transient state district+20% or-20% or the maximum cylinder displacement of the intrinsic frequency in transient state district 1/3 or more, then can confirm to produce irregular oscillation.

Yet as the result of research, irregular oscillation takes place in being higher than the RPM band in transient state district, for example occurs between the zone (hereinafter, be called as " irregular oscillation district ") of about 350rpm in the scope of 1000rpm.Irregular oscillation maybe be owing to use balancer, damping system and back liner to produce.Therefore, in this washing machine, necessary is through considering that irregular oscillation district and transient oscillation district come the design balance device.

For example; Balancer is provided with ball balancer; Preferably consider the structure of irregular oscillation district and transient oscillation district selection balancer, i.e. the loading (filling level) of the viscosity of the shape of the quantity of the size of ball (size), ball, seat ring (race, raceway), oil and oil.When considering transient oscillation district and/or irregular oscillation district, when especially considering the irregular oscillation district, ball balancer has the major diameter of 255.8mm and the minor diameter of 249.2mm.The space that includes the bearer ring of ball has 411.93mm ²Sectional area.The front and back quantity of ball is respectively 14, and the size of ball is 19.05mm.Silicon-based oil, for example dimethione (PDMS) is used as oil.Preferably, oil viscosity at room temperature is 300CS, and loading is 350cc.

Except that the structure of balancer, consider control, preferably consider irregular oscillation district and transient oscillation district.For example, in order to prevent irregular oscillation, if confirm the irregular oscillation district, then can be before drum speed be through the irregular oscillation district, in and after at least once implement balance.Here, if the rotary speed of cylinder is higher relatively, the balance of balancer maybe be by inappropriate enforcement so, and this balance can be implemented under the situation of the rotary speed that reduces cylinder.Yet,, must pass through the transient state district once more if the rotary speed of cylinder is reduced to and is lower than the transient state district and implements balance.Rotary speed reducing cylinder is implemented in the process of balance, and the rotary speed of reduction can be higher than the transient state district.

It will be clear to someone skilled in the art that under the situation that does not deviate from the spirit or scope of the present invention, can carry out various changes and modification the present invention.Therefore, this invention is intended to cover interior those changes of the present invention and the modification of scope that drops on enclose claim and equivalent thereof.

Claims (15)

1. the control method of a washing machine comprises:

The water supply step is configured to when water is supplied to steel ladle, by washing the action drives cylinder by rubbing with the hands.

2. control method as claimed in claim 1 wherein when the water supply step begins, is implemented circulation step, and this circulation step is configured to make the water circulation in said steel ladle so that water is fed to said steel ladle again.

3. control method as claimed in claim 1; Wherein said washing machine comprises driver element and is connected to the suspension assembly of said driver element, and said driver element comprises the axle that is connected to cylinder, rotatably supports the bearing block of said axle and make said motor rotating.

4. control method as claimed in claim 1; Wherein said washing machine comprises the back liner, and said back liner is used to seal to prevent that washings from leaking from the space between driver element and the steel ladle and be used to make said driver element to move with respect to said steel ladle.

5. control method as claimed in claim 1 is wherein compared with the cylinder that is supported by suspension assembly, and steel ladle is supported more rigidly.

6. the control method of a washing machine comprises:

Wash cycle comprises at least one water supply step, and said water supply step is configured to after beginning that water is fed to steel ladle, perhaps after water level reaches predetermined value, and head roll in predetermined period.

7. control method as claimed in claim 6, the said steel ladle and the said cylinder that are provided with in the wherein said washing machine have downward-sloping rear portion respectively.

8. control method as claimed in claim 6, the said steel ladle and the said cylinder that are provided with in the wherein said washing machine have downward-sloping rear portion respectively.

9. control method as claimed in claim 8 wherein is configured to make the recycle circuit of water circulation to be connected to the anterior part of said steel ladle.

10. control method as claimed in claim 6 wherein is arranged on the anterior part that water supply line in the said washing machine is connected to said steel ladle, and

When feed water valve is opened, be set to the turn-on time of said feed water valve shorter than turn-off time.

11. control method as claimed in claim 10, wherein being confirmed as the glassware for drinking water that makes via said water supply line supply turn-on time has the pressure less than predetermined hydraulic pressure.

12. control method as claimed in claim 11, be confirmed as the turn-on time of wherein said feed water valve, and feasible glassware for drinking water via said water supply line supply has the predetermined hydraulic pressure that is high enough to directly be not fed to said cylinder.

13. control method as claimed in claim 1; Wherein said washing machine comprises driver element and is connected to the suspension assembly of said driver element, and said driver element comprises the axle that is connected to cylinder, rotatably supports the bearing block of said axle and make said motor rotating.

14. control method as claimed in claim 6; Wherein said washing machine comprises the back liner; Said back liner is used to seal preventing that washings from leaking from the space between driver element and the steel ladle, and is used to make said driver element to move relative to said steel ladle.

15. control method as claimed in claim 6 is wherein compared with the cylinder that is supported by suspension assembly, steel ladle is supported more rigidly.

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