CN102575404B - 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.But conventional washer has 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 object of this invention is to provide a kind of control method of washing machine, the method comprises and being configured to when water is fed to steel ladle by the water re-supplying step washing 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.

Accompanying drawing explanation

Accompanying drawing is included to provide a further understanding of the present invention, and these accompanying drawings to be merged in the application and to form a application's part, and they illustrate embodiments of the invention and are used for principle of the present invention is described together with description.

In the drawings:

Fig. 1 is as embodied at this and summarizing the sectional view of schematic washing machine described;

Fig. 2 is the three-dimensional exploded view of the washing machine according to the second embodiment that application dewatering cycle control method is shown;

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

Fig. 4 illustrates as embodied at this and summarizing the various drum action and laundry motion pattern that describe;

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

Fig. 6 and Fig. 7 illustrates the figure changed at the RPM of dewatering cycle intermediate roll;

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

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

Detailed description of the invention

As follows, the control method according to washing machine of the present invention is described with reference to the accompanying drawings.First by describe by respective figure according to various embodiment, washing machine that control method of the present invention can be applied, subsequently these control methods will be described.

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

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

Casing 10 limits the outward appearance of washing machine 100, and structure element (will describe after a while) can be arranged in casing 10.Door 11 is connected to the header board of casing 10, and user opens door 11 and loaded in casing 10 by clothing.

Steel ladle 20 is arranged in casing 10, fills washings in steel ladle 20.Cylinder 30 can rotate in steel ladle 20, accommodating laundry in cylinder 30.In the case, can arrange multiple lifter 31 in cylinder 30, washing implemented by lifter 31 ascending, descending clothing.

Steel ladle 20 is by the spring supporting be arranged on outside steel ladle 20.Motor 40 is installed to the rear surface of steel ladle 20, and motor 40 makes cylinder 30 rotate.When the cylinder rotated by motor 40 produces vibration, be arranged on and vibrate with being associated with cylinder according to the steel ladle 20 in the washing machine of the first embodiment.If cylinder 30 rotates, then the vibration produced in cylinder and steel ladle 20 can be absorbed by the damper 60 be positioned under 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, steel ladle 20 and the rear portion both cylinder 30 can be downward-sloping.If this is because clothing is loaded cylinder 30 by user, then steel ladle 20 and the front part both cylinder 30 are inclined upwardly better.At the front surface of cylinder 30 and/or rear surface, ball balancer 70 is set, if drum rotating, especially cylinder High Rotation Speed, such as drying and dehydrating (dry-spinning) circulation, the then vibration of balancing drum 30.Ball balancer will be described in detail after a while.

According to the washing machine of the present embodiment, steel ladle can fixed support to casing, or it can by flexible support structure, and the suspension unit that such as will describe after a while, supports to casing.And the support of steel ladle in the support of suspension unit and can be completely fixed between support.

That is, steel ladle by suspension unit (will describe after a while) flexible support, or can support thus more difficult movement with being completely fixed.Although not shown in the figures, and after a while by different for the embodiment described, can not casing be set.Such as, when built-in washing machine, form by wall construction etc. the predetermined space installing built-in washing machine and replace casing.In other words, built-in washing machine can not comprise the casing of the outward appearance being configured to independent definition washing machine.

Fig. 2 is the three-dimensional exploded view that part illustrates the washing machine according to the second embodiment, and Fig. 3 is the sectional view of the assembled state that the washing machine shown in Fig. 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.Steel ladle 12 can comprise the steel ladle front portion (tub front) 200 being configured to the front part limiting steel ladle and the steel ladle rear portion (tub rear) 220 being configured to the rear portion limiting steel ladle.Steel ladle anterior 200 and steel ladle rear portion 220 are assembled mutually by screw, and form predetermined space to hold cylinder in the structure of assembling.Steel ladle rear portion 220 can be included in the opening that its rear surface is formed, and the inner periphery of the rear surface at steel ladle rear portion 220 is connected with the excircle of rear liner 250.The inner periphery of rear liner 250 is connected with steel ladle back (tub back) 230.Steel ladle back 230 is included in the through hole be wherein formed centrally, and an axle is through this through hole.Rear liner 250 can be made up of flexible material, and this flexible material can not make the vibration passing at steel ladle back 230 to steel ladle rear portion 220.

Steel ladle rear portion 220 comprises rear surface 128.The rear surface 128 at steel ladle rear portion 220, steel ladle back 230 and rear liner 250 limit the rear wall of steel ladle.Rear liner 250 is tightly connected with both steel ladle back 230 and steel ladle rear portion 220, and it prevents the washings held in steel ladle from leaking.During drum rotating, steel ladle back 230 vibrates together with cylinder.Therefore, the preset distance being enough to not interfere steel ladle rear portion 220 is separated at steel ladle back 230.Because rear liner 250 is made up of flexible material, so rear liner 250 allows the steel ladle back 230 when not interfering steel ladle rear portion 220 to carry out relative motion.Rear liner 250 can comprise pleated portions (beads) 252, and this pleated portions can sufficiently extend with this relative motion allowing steel ladle back 230.

Anti-foreign matter component 280 is connected with the front part of steel ladle front portion 200, enters between steel ladle and cylinder to prevent foreign matter.Anti-foreign matter component 280 is made up of flexible material, and it is fixedly installed to steel ladle front portion 200.Anti-foreign matter component 280 can be made up of the material identical with the material being used for making rear liner 250, and for simplicity, it will be called as " front liner ".

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

Axle 351, through steel ladle back 230, is directly connected with motor 170.Particularly, axle 351 is directly connected with the rotor 174 of composition motor 170.Bearing block 400 is connected to the rear surface at steel ladle back 230, bearing block 400 between motor 170 and steel ladle back 230, with back shaft 351 rotatably.

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

Bearing block 400 is supported by suspension unit relative to chassis block 600, and suspension unit 180 comprises: three vertical support suspension arrangements, and is configured to the inclined shore suspension arrangement along front and rear direction inclined shore bearing block.

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

First cylindrical spring 520 is arranged between the first suspension bracket 450 and chassis block 600, and the second cylindrical spring 510 is arranged between the second suspension bracket (not shown) and chassis block 600.

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

First cylindricality damper 540 is inclined and mounted between the first suspension bracket 450 and the rear portion of chassis block.Second cylindricality damper 530 is inclined and mounted between the second suspension bracket 440 and the rear portion of chassis block.

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

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

Steel ladle anterior 200 and steel ladle rear portion 220 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 if when cylinder 32 vibrates, steel ladle 12 can vibrate from structure.

Bearing block 400 is hung bracket with these and is connected by the first counterweight and the second counterweight (not shown).

Water supply line 722 is arranged in casing 110, and water supply line 722 is connected with outside watering (such as: hose).Control piece switch control rule 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 front part of steel ladle 12 or front liner 200, to supply water in steel ladle from front part.If arrange detergent box 710 along water supply line 722, then water can be supplied together with cleaning agent.

Meanwhile, circulating pump 730 can be arranged under steel ladle 12, the water circulation that circulating pump 730 makes steel ladle 12 discharge, thus makes it be fed to steel ladle again.If require to make water circulate according in the washing machine of the second embodiment by circulating pump 730, then regulating valve 732 make circulating pump 730 be connected with recycle circuit 744.The end of recycle circuit is connected with the front part of steel ladle or front liner 280, so that from front part to steel ladle private water supply.If needed from steel ladle draining, then circulating pump 730 is made to be connected so that draining with drain line 742.Although not shown in the figures, the draining pump being configured to make the circulating pump of water circulation and be configured to draining can be provided separately.In the case, recycle circuit and drain line are connected with circulating pump and draining pump respectively.

Steel ladle 12 and cylinder 32 can be installed abreast with chassis block 600, or install obliquely by a predetermined angle with chassis block 600.In the case, the rear portion of steel ladle 12 and cylinder 32 can be downward-sloping, to make user, clothing more successfully loaded cylinder 32.

If clothing 1 is accommodated in cylinder 30,32, and cylinder 30,32 is according to rotating in the washing machine of above embodiment, and the position according to clothing 1 will produce noise and vibration.Such as, when rotating (hereinafter, " eccentric rotary ") when the clothing of cylinder 30,32 in cylinder 30,32 distributes uneven, serious vibration & noise can be there is.Especially, when drying and dehydrating cycle period, when cylinder 30,32 High Rotation Speed, vibration & noise will be problem.

Therefore, washing machine can comprise ball balancer 70,310 and 330, to prevent from producing vibration & noise because of the eccentric rotary of cylinder 30,32.Ball balancer 70,310 and 330 can be arranged on front part or rear portion, or front 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, ball balancer (70,310 and 330) can comprise ball 72,312 and 332 and path, and ball has predetermined weight, and ball can along the circumferential direction move in the path.

Particularly, ball rotates because of the frictional force produced when cylinder 30,32 rotates.As the cylinder rotates, ball is not remain in cylinder, and rotates by the speed different from cylinder.Here, produce the clothing of the degree of eccentricity and the inwall close contact of cylinder, and can rotate with the speed almost identical with cylinder due to the frictional force of abundance and the lifting of inwall.Therefore, the rotary speed of clothing and the different of ball.Have the beginning revolving process of relative low speeds 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 ball differs with locker room, namely can continuously change relative to the difference of the pivot of cylinder.

If the rotary speed of cylinder accelerates, then due to centrifugal force, ball is by the external peripheral surface close contact with mobile route.Meanwhile, differ at ball and clothing the position being about 90 ° to 180 °, ball aligns.If the rotary speed of cylinder is predetermined value or more, centrifugal force becomes fully large, and the centrifugal force between this circumferential surface and ball becomes predetermined value or more, and ball can be rotated by the speed identical with cylinder.In the case, ball rotates by the speed identical with cylinder, and to maintain with differing of clothing be the position of 90 ° to 180 ° (preferably about 180 °).In this manual, for simplicity, ball in precalculated position relative to the situation of drum rotating by referred be " degree of eccentricity correspondence position " or " ball balance ".

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

Meanwhile, cylinder can variously be driven in above washing machine.That is, according to each washing, rinsing and drying and dehydrating circulation, suitably can determine the drive actions of cylinder, or user suitably can determine the drive actions of cylinder according to the characteristic of the program selected.As follows, will the various drive actions be applicable to according to control method of the present invention be described in detail.

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

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

Meanwhile, as the cylinder rotates, clothing is promoted by the lifter (see 132 in 31 in Fig. 1 and Fig. 3) of the inner circumferential surface being arranged on cylinder.Therefore, the rotary speed of cylinder, direction of rotation and the anglec of rotation are controlled, and therefore the impact being applied to clothing can change.That is, be applied to the mechanical force of clothing, alterable is impacted in the friction that such as locker room produces, the decline of the friction produced between clothing and water and clothing, can therefore change the impact of clothing or the degree of washing by rubbing with the hands.In addition, the rotary speed of cylinder, direction of rotation and the anglec of rotation can be controlled, and therefore distribution or the upset degree of the clothing in cylinder can change.

Therefore, the control method of washing machine can provide various drum driven action, and drum driven action changes according to the concrete steps of each circulation and composition circulation, makes optimal mechanical power can be used to process clothes.Thus, the detersive efficiency of clothing can be improved, and the time needed for best drum driven action can be shortened.

Meanwhile, motor can be divided into the direct-type that is directly connected with the axle of cylinder and be configured to transmit to cylinder via pulley etc. the indirect type of revolving force.In order to realize various drum driven action, motor 170 can be the direct-type be directly connected with cylinder.Consider 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) can be delivered to cylinder.

Drum driven action by scroll actions, tumbling action, stepwise operation, rocking action, wash action etc. by rubbing with the hands and form.As follows, each action will be described in detail.

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

With reference to Fig. 4 (a), in scroll actions, motor 40,170 makes cylinder 30,32 along predetermined direction continuous rotation, is positioned at clothing on the inner circumferential surface of cylinder, that rotate along the direction of rotation of cylinder drops to cylinder minimum point from the position of the angle being about less than 90 °.

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

Meanwhile, if drum rotating, then the cylinder RPM of drum driven action is determined by the relation with centrifugal force.That is, the RPM of cylinder is larger, and the centrifugal force that the clothing in cylinder produces is larger.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 relative size that the motion of cylinder undergarment can be centrifuged between power and gravity changes.When determining cylinder RPM, the revolving force of cylinder and the frictional force of cylinder and locker room may must be considered.

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

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

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

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

That is, before motor 40,170 is by driving, the clothing loaded in cylinder 30,32 is positioned at the minimum point of cylinder 30,32.When motor 40,170 provides torque to cylinder 30,32, cylinder 30,32 rotates, and the lifter 132 be 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, the position of about 90 ° to 180 ° from the direction of rotation relative to cylinder is dropped to the minimum point of cylinder by clothing.In tumbling action, the centrifugal force produced when the centrifugal force that cylinder RPM is confirmed as making to produce in tumbling action is greater than drum rotating, and be less than gravity.

If tumbling action intermediate roll is rotated in a clockwise direction, then clothing is risen to the second quadrant by the minimum point from cylinder, then drops to the minimum point of cylinder.Therefore, tumbling action enables clothing by with the fricative impact of water with decline and impact and washed.In tumbling action, the mechanical force larger than the mechanical force of scroll actions can be used to implement washing and rinsing.And tumbling action is the action making clothing decline in cylinder, be effective in its clothing tangled in separation, uniform distribution clothing.

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

With reference to Fig. 4 (c), in stepwise operation, motor 40,170 makes cylinder 30,32 rotate along predetermined direction, and the clothing be positioned on the inner circumferential surface of cylinder is controlled as the minimum point dropping to cylinder from the peak of about 180 ° of the direction of rotation relative to cylinder.

Once motor 40,170 makes cylinder 30,32 rotate with the RPM of about 60RPM to 77RPM or higher, clothing just can rotate until arrive the peak of cylinder and do not decline by centrifugal force.In stepwise operation, if clothing arrives near peak, brake suddenly cylinder application to maximize the impact being applied to clothing.

Rotate by the predetermined speed that clothing can not be made to decline (about 60RPM to 70RPM or more) making cylinder 30,32, until clothing arrives the peak of cylinder by using centrifugal force, when clothing is positioned at peak (180 ° of direction of rotation relative to cylinder) near cylinder, motor 40,170 is controlled so as to supply opposing torque to cylinder 30,32.Clothing promotes from the minimum point of cylinder along the direction of rotation of cylinder.After this, when cylinder stops instantaneously because of the opposing torque of motor, clothing drops to minimum point from the peak of cylinder 30,32.Therefore, stepwise operation impact that clothing is produced when maximum height declines by clothing and being washed.The mechanical force produced in this stepwise operation is greater than above-mentioned scroll actions or washes the mechanical force produced in action by rubbing with the hands.

If apply unexpected braking as in stepwise operation, motor 40,170 can be inverted braking.Plugging is a kind of by using the motor braking type of the torque produced relative to the opposite direction of the direction of rotation of motor.The phase place being applied to the electric current of motor can be reversed into for generation of opposing torque, and plugging makes braking suddenly be applied to motor.Therefore, for the stepwise operation be configured to clothing application thump, the brakes that plugging is best suited for.

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

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

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

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

That is, once motor 40,170 makes cylinder 30,32 rotate with about 40RPM in the counterclockwise direction, the clothing being positioned at the minimum point of cylinder 30,32 promotes predetermined altitude in the counterclockwise direction.At clothing through the anticlockwise 90 ° of positions relative to cylinder, motor makes cylinder stop the rotation, and clothing drops to the minimum point of cylinder from anticlockwise 90 ° to the 130 ° positions relative to cylinder.

Therefore, motor 40,170 makes cylinder 30,32 rotate with about 40RPM along clockwise direction, promotes predetermined altitude to make clothing in the direction of the clock along the direction of rotation of cylinder.At clothing after relative to anticlockwise 90 ° of positions of cylinder, motor makes cylinder stop the rotation, and clothing drops to the minimum point of cylinder from clockwise 90 ° to the 130 ° positions relative to cylinder.

That is, rocking action is so a kind of action, wherein relative to the rotation of predetermined direction and stopping and relative to reciprocal rotation with stop repeating.The clothing rising to a part for the second quadrant from the third quadrant of cylinder mildly declines, and it is risen to a part for first quartile repeatedly mildly to decline again by the fourth quadrant from cylinder.Therefore, in rocking action, clothing can with the shape movement of (sided) " 8 " sidewards on the third quadrant of cylinder and fourth quadrant.

Now, motor 40,170 can use rheostat type to brake.According to rheostat type braking, if be applied to the current interruptions of motor, then due to rotatory inertia, motor is used as generator.If be applied to the current interruptions of motor, then the sense of current that the coil midstream of motor moves will become the opposite direction of the electric current before power-off, and power (Fleming's right-hand rule) is applied by the direction rotated along interference motor, to make motor braking.Different from plugging, rheostat type braking can not make motor brake suddenly, but it can make the direction of rotation of cylinder mildly change.Therefore, rocking action is applicable to rheostat type braking, 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 being applied to clothing can be adjusted simultaneously.

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

With reference to Fig. 4 (e), washing by rubbing with the hands in action, motor 40,170 makes cylinder 30,32 rotate along clockwise direction with counterclockwise alternately, and plugging is applied to cylinder, and clothing can be declined the position from about 130 of the direction of rotation relative to cylinder ° to 160 °.

That is, once motor 40,170 makes cylinder 30,32 rotate with about 60RPM in the counterclockwise direction, the clothing being positioned at the minimum point of cylinder 30,32 is just promoted predetermined altitude in the counterclockwise direction.At clothing after anticlockwise about 90 ° of positions relative to cylinder, motor provides reactive torque temporarily to stop cylinder for cylinder.If the clothing like this, be positioned on the inner circumferential surface of cylinder will decline rapidly.

Therefore, motor 40,170 makes cylinder rotate with about 60RPM along clockwise direction, the clothing of decline is promoted predetermined altitude along clockwise direction.At clothing after the anticlockwise 90 ° of positions relative to cylinder, motor 40,170 pairs of cylinders 30,32 apply opposing torque, and the rotation of cylinder temporarily stops.Therefore, the clothing be positioned on the inner circumferential surface of cylinder drops to the minimum point of cylinder from clockwise about 130 ° to the 160 ° positions relative to cylinder.

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

Washing by rubbing with the hands in action, the direction of rotation of cylinder changes rapidly, and clothing may to a great extent on the inner circumferential surface of cylinder.Therefore, the clean result that can realize washing by rubbing with the hands by force shape is being washed in action by rubbing with the hands.Washing by rubbing with the hands in action, repeating following process, the clothing moving to a part for the second quadrant via third quadrant declines rapidly, to decline after the part moving to first quartile via fourth quadrant more again.Therefore, washing by rubbing with the hands in action, the clothing of lifting repeatedly declines 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 rotate, and to make clothing can not decline from the inner circumferential surface of cylinder, and water is injected in cylinder.

That is, in filter action, when after disperseing, the inner circumferential surface of clothing and cylinder rotates in intimate contact, water is injected in cylinder.Water is discharged steel ladle 120 by centrifugal force by the through hole from clothing and cylinder.Because filter action widens the surface area of clothing, it enables water through clothing, and washings can be enable through clothing, and washings can be made to be fed to clothing equably.

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

That is, in filter action, cylinder rotates continuously with the speed enough making clothing and do not decline from the inner circumferential surface of cylinder.By contrast, the rotary speed of cylinder changes, with the clothing repeated in close contact inner circumferential surface and the process making clothing be separated with inner peripheral surface.

The process ejecting water to cylinder 30,32 in filter action and extruding action can use circulating path and pump (although not shown in 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 of water from the top of cylinder via circulating path is ejected into cylinder.

When spraying the water held in steel ladle, above-mentioned circulating path and pump are necessary elements; The present invention can not get rid of the situation of spraying water via the path be connected with the outside watering be positioned at outside casing.

Meanwhile, Fig. 4 (c) is the figure that stepwise operation is more clearly shown.Once motor 40,170 along predetermined direction to cylinder 30,32 application of torque, cylinder just along predetermined direction rotate, clothing is promoted under the state of the inner circumferential surface of close contact cylinder.Now, clothing can by about 60RPM or higher rotation, to promote the clothing with the inner circumferential surface close contact of cylinder.Here, by the rotary speed of the relation determination cylinder of the internal diameter with cylinder, and the rotary speed determined can make centrifugal force be greater than gravity.

Just pass through the peak of 90 ° of positions arrival cylinders of the direction of rotation relative to cylinder 30,32 at clothing before, motor 40,170 plugging, to stop the rotation of cylinder temporarily.Be closely related relative to the time point of the plugging of motor 40,170 and the position of clothing in cylinder.Thus, can arrange for determining or expect the equipment of position of clothing, the sensor device comprising the hall effect sensor of the anglec of rotation being configured to determine rotor can be one of example.

Direction of rotation and the anglec of rotation of control piece by using Hall element to determine rotor.This technical characteristic is the common practise of those skilled in the art, therefore will omit it and describe in detail.

Control piece determines the anglec of rotation of cylinder by use sense measurement equipment, and controls motor 40,170 have the anglec of rotation of 180 ° at cylinder before and carry out plugging.Here, plugging be meant to apply reversing the current, with swing roller in reverse direction.Such as, make after cylinder is rotated in a clockwise direction to motor application electric current, application reversing the current rotates in the counterclockwise direction to make cylinder rapidly.

Therefore, the cylinder be rotated in a clockwise direction stops at once, and the anglec of rotation now, substantially at 180 °, drops to minimum point to make clothing from the peak of cylinder.After this, lasting applied current makes cylinder be rotated in a clockwise direction.

Fig. 4 (c) illustrates the cylinder be rotated in a clockwise direction.Here, when cylinder rotates in the counterclockwise direction, stepwise operation can be implemented.Here, stepwise operation produces a large amount of load to motor 40,170, and the clean effect of stepwise operation can reduce than (net acting ratio).

Clean effect is than being motor driving time and the ratio of the driving time of motor 40,170 and the total value of dwell time.If only acted on than being " 1 ", be then meant to motor and driven without dwell time.Consider the load of motor, stepwise operation can be implemented by 70% of approximately clean effect ratio.Such as, drive motors can stop 4s after driving 10s.

Fig. 4 (e) more clearly illustrates the figure washing action by rubbing with the hands.Once motor 40,170 pairs of cylinder 30,32 application of torque, the clothing in cylinder is just rotated in a clockwise direction.Here, motor 40,170 can be controlled so as to make cylinder 30,32 with about 60RPM or higher rotation, to make to rotate with the clothing of the inner circumferential surface close contact of cylinder.After this, when clothing is through 90 ° of positions relative to the direction of rotation of cylinder, motor 40,170 is inverted braking, therefore drops to the minimum point of cylinder with the clothing of the inner circumferential surface close contact of cylinder.

When clothing drops to minimum point, motor 40,170 pairs of cylinder application torques, make cylinder rotate in the counterclockwise direction.Therefore, rotate in the counterclockwise direction with the clothing of the inner circumferential surface close contact of cylinder.When clothing is between the peak of the cylinder relative to anticlockwise 90 ° of positions and distance minimum point, motor is inverted braking, drops to the minimum point of cylinder with the clothing of the inner circumferential surface close contact of cylinder.

As stepwise operation, above-mentionedly wash action by rubbing with the hands and produce and be applied to a large amount of loads of motor 40,170.Therefore, the clean effect of action is washed by rubbing with the hands than reducing.Such as, wash action by rubbing with the hands and implement 10s, after this stop 4s, this process repeats to make clean effect than being 70%.

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

When clothing is dirty especially, stepwise operation and to wash action by rubbing with the hands be suitable for those to be embodied as washing procedure for shortening wash time.Stepwise operation and wash action by rubbing with the hands and have high vibration/noise level, therefore they are not suitable for those and are embodied as washing sensitive fabrics (sensitive fabric) and making 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, is especially suitable for dissolving cleaning agent in the initial wash stage and being suitable for clothing of getting wet.

Tumbling action has than washing the low washability of action by rubbing with the hands, and washes action by rubbing with the hands and to compare middle noise level with scroll actions.Scroll actions has comparatively low noise level, but has the wash time longer than tumbling action.Therefore, tumbling action is applicable to all washing procedures, and is suitable for the washing procedure needing uniform distribution clothing.

Extruding action has the washability and the level of vibration higher than tumbling action that are similar to tumbling action.The process that extruding action repeats the clothing in the inner circumferential surface of close contact cylinder and clothing is separated with the inner circumferential surface of cylinder, and in the process, washings are being discharged to outside cylinder after clothing.Therefore, extruding action is suitable for rinsing.

Filter action has the washability lower than extruding action and is similar to the noise level of scroll actions.In filter action, water is through clothing and be discharged to outside cylinder, the wherein inner circumferential surface close contact of clothing and cylinder.Therefore, filter action is suitable for needing getting wet the program of clothing.

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

As mentioned above, each drum driven action all has merits and demerits, preferably suitably uses those various drum driven actions.With the relation of laundry amounts in, each drum driven action can have merits and demerits.Even if when identical program and circulation, relative to the relation with laundry amounts, suitably various drum driven action can be used.

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

Wash cycle can comprise water re-supplying step, and it is configured to supply water and cleaning agent, to dissolve cleaning agent in water to steel ladle 12,20 or cylinder 30,32.That is, water and cleaning agent mixing supply, with washing clothes.In addition, wash cycle can comprise main washing step, and it is configured to head roll and carrys out washing clothes.Here, water re-supplying step can be the preparation process of main washing step.Therefore, preferably improve the efficiency of water re-supplying step, to improve the efficiency (comprise detersive efficiency and shorten time efficiency) of wash cycle.

Wash cycle can comprise: clothing is got wet step and/or the heating steps implemented between water re-supplying step and main washing step.To the control method about the water re-supplying step of wash cycle be described after a while, and will be described in greater detail.

At water re-supplying step, control piece is to steel ladle 12,20 supplying washing water.Specifically, control piece opens 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 in water re-supplying step cleaning agent and water by together with supply, so detergent can be implemented completely during water re-supplying step, to improve the efficiency of wash cycle.Therefore, in water re-supplying step, prior defined procedure can be implemented and carry out expedite clean-up agent and dissolve in water.If water contacts with garment portion between delivery period, then water can not be got wet clothing equably, and the efficiency of wash cycle may reduce.Although arrange clothing in wash cycle to get wet step, water re-supplying step can comprise the process making clothing uniformly wet with water.As follows, the various embodiments of detergent accelerator and uniformly wet clothes will be described.

First, for expedite clean-up agent is dissolved, the action (drum driven action) of the clothing in traveling roller can apply strong mechanical force to water and clothing.Therefore, leave the inner circumferential surface of cylinder because the clothing that promotes along swing roller declines because of the braking of cylinder, and repeat in stepwise operation due to this, so stepwise operation is preferably in water re-supplying step, dissolve with expedite clean-up agent.Certainly, in water re-supplying step, the clothing can implementing to promote along the cylinder rotated repeatedly decline because of the braking of cylinder and reverse rotation with promote wash action by rubbing with the hands.At stepwise operation and wash by rubbing with the hands in action, postrotational cylinder stops rapidly, and the moving direction of clothing changes rapidly.Therefore, they can be to the action of clothing and water application thump, make can provide strong mechanical force in the starting stage of water re-supplying step, and detergent can be accelerated, and only improve the efficiency of wash cycle.

Can expedite clean-up agent dissolve with the sequential combination of washing action by rubbing with the hands by repeating stepwise operation.In the case, dissimilar drum driven action is combined, and the type of sports of clothing and current type can variations.Therefore, can the efficiency of more improvement wash cycle.

As mentioned above, water re-supplying step is the preparation process of main washing step.Therefore, in water re-supplying step, detergent and clothing are got wet must rapidly and fully implement, and they can the amount of no matter clothing be implemented.But, consider the limited capacity of cylinder, the limited water of cylinder can be supplied to, differentially can control the drum driven action of water re-supplying step according to laundry amounts.This is because the drum driven action that can realize the maximum efficiency that detergent and clothing are got wet can be different according to laundry amounts.

Before water re-supplying step, the laundry amounts determining step of the amount being configured to the clothing determining to hold in cylinder can be implemented.According to the result of laundry amounts determining step, water re-supplying step intermediate roll drive actions differentially can be controlled.

This laundry amounts is determined to implement by the electric current measured needed for swing roller.Such as, the electric current implemented needed for tumbling action can be measured.If drum rotating, then applying to implement the current value of tumbling action by control piece can be different according to laundry amounts, and laundry amounts can be determined.

If the laundry amounts determined in laundry amounts determining step is default laundry amounts level or higher, be then controlledly made as the process not implementing detergent.That is, if laundry amounts lower than preset level, controlled be made as implement be configured to expedite clean-up agent dissolve process.This is because the drum driven action can supplying strong mechanical force is more effective when laundry amounts is little, also because a small amount of clothing fully can be got wet by water.That is, a small amount of clothing means that the surface area that clothing needs contact with water is little, detergent and clothing get wet can by be used for the short time rolling clothing mechanical force implement.Therefore, the effect of main washing is by stepwise operation or wash action part realization by rubbing with the hands, and the effect implementing the shortening time needed for main washing can be expection.

By contrast, when laundry amounts is large, mechanical force may be inadequate, and clothing may contact insufficient with water.When clothing is rubbed wrinkle, water can not by ample supply to the object rubbed in wrinkle clothing.

Therefore, if laundry amounts is default level or higher, then omit the process that detergent is accelerated, and clothing can be started to get wet step.When laundry amounts be default level or higher time, more preferably accelerate the dissolving of cleaning agent that clothing fully contacts with water.For this reason, in water re-supplying step, the water circulation can implementing to be configured to make to hold in steel ladle is to be fed to the circulation step of cylinder again by it.

According to the washing machine of above-mentioned second embodiment, steel ladle 12 is directly fixed to casing 110, and cylinder 32 is arranged in steel ladle 12.Due to according to only having cylinder 32 to rotate in the washing machine of the second embodiment, the installation and steel ladle 12 is fixed, so importantly prevent from coming in contact between cylinder 32 and steel ladle 12 during drum rotating.Therefore, compared with the situation in conventional washer, the distance between the steel ladle 12 formed in this washing machine and cylinder can be larger.

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

According to the washing machine of the second embodiment, cylinder 32 is connected with steel ladle back 230.Steel ladle back 230 is supported by suspension unit 180 via bearing block 400, and is not supported by steel ladle 12.Therefore, with according in the washing machine of the first embodiment by compared with the cylinder 30 of the steel ladle back-supported directly connected with steel ladle 12, the cylinder 32 arranged in the washing machine according to the second embodiment, the especially front part of cylinder 32, have the larger free degree.

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

As follows, by when implementing to supply water in the washing machine be described according to a second embodiment of the present invention, be positioned at the control method of the front part of cylinder, the clothing of rear portion according to embodiments of the invention uniformly wet.

If supplied water in the water re-supplying step of the control method according to the first embodiment, circulating pump 730 is actuated to make water circulation, and cylinder 32 is driven via storage capacitors simultaneously.When cylinder 32 is by driving, control piece washes action by rubbing with the hands according to above-mentioned drum driven action, and index drum 32 is driven.

The distance in conventional washer between them is greater than according to the distance between the cylinder 32 in the washing machine of the second embodiment and steel ladle 12.Therefore, when between the delivery period as in conventional washer, when applying tumbling action to cylinder 32, the clothing being positioned at the rear portion of cylinder can not fully be got wet.That is, because the gap between cylinder 32 and steel ladle 12 is greater than the gap formed in conventional washer, so the rotation of cylinder can not promote the water between cylinder and steel ladle, the clothing of the rear portion being positioned at cylinder of can not getting wet.

Therefore, when implementing water re-supplying step according to this control method, implement to wash action instead of tumbling action by rubbing with the hands.As mentioned above, wash action by rubbing with the hands and cylinder is rotated with the RPM higher than tumbling action, the water between cylinder 32 and steel ladle 12 is promoted because of the rotation of cylinder 32, drops on clothing.

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

When for water supply and open feed water valve 720 time, drive and swing roller 32, clothing according to the driving of cylinder 32 cylinder 32 in motion.In the case, the water supplied via the water supply line 722 be connected with the front part of steel ladle 12, major part can be fed to the mobile clothing of the front part being positioned at cylinder 32, and that to be positioned at anterior clothing wetter than the clothing at the rear portion being positioned at cylinder 32 is fast.

Until feed water valve 720 supply water after after a predetermined time or water reach predetermined water level, the control method according to the second embodiment can not head roll 32.If predetermined hold-time or until water reaches predetermined water level not head roll 32, the water supplied via water supply line 722 major part can be collected in the bottom of steel ladle 12.Here, can consider that distance between steel ladle 12 and cylinder is to determine predetermined water level.According to steel ladle 12 and the capacity of cylinder 32 and the amount of clothing, the scheduled time can be determined.

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

If feed water valve 720 to open to supply water according to the control method of the second embodiment not head roll 32, then feed water valve 720 can be switch control rule.That is, when feed water valve 720 opens water supply, water can have predetermined pressure due to the hydraulic pressure of outside watering (such as hose).In the case, the water supplied via water supply line 722 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.

Therefore, when according to when implementing in the control method of the second embodiment to supply water, feed water valve 720 can repeatedly open and close, instead of open constantly.Feed water valve 720 can be controlled so as to be switched on or switched off the water of supply, does not flow directly in cylinder 32 to make the glassware for drinking water of supply have predetermined hydraulic pressure.Here, make the water hydraulic pressure do not flowed directly in cylinder can represent so a kind of hydraulic pressure, it can make the water supplied via water supply line 722 fall along cylinder, steel ladle or door and be collected in the bottom of steel ladle 12, instead of is ejected in cylinder by hydraulic pressure.The water fallen along cylinder, steel ladle or door can be collected in the rear portion of steel ladle 12, and description is after this similar to above-mentioned description.Therefore the description repeated will be omitted.

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

Control piece opens the feed water valve 720 for supplying water, and it drives circulating pump 730 to make water circulation simultaneously.Control piece can in filter action head roll 32.

That is, control piece can rotate with predetermined RPM by index drum.Here, predetermined RPM is determined to be RPM clothing can not being declined when drum rotating with the inwall close contact of cylinder because of gravity.Therefore, predetermined RPM can be set as that the centrifugal force of the cylinder making to be applied to rotation is greater than acceleration of gravity, predetermined RPM can be set as lower for resonate excessive period (excessive period) of (about 200RPM to 350RPM) than the generation of washing machine, if cylinder rotates with the RPM higher than period more excessive in this, then the noise and vibration produced that resonates can significantly increase.Therefore, predetermined RPM can be set in about 100RPM to 170RPM.

Once control piece makes cylinder 32 rotate with predetermined RPM, clothing due to centrifugal force with the inwall close contact of cylinder 32, the water supplied via recycle circuit 744 and water supply line 722 distributes according to the rotation of cylinder 32.The water distributed is supplied to cylinder 32, towards the clothing of inwall that against cylinder 32, clothing can be got wet equably.

Meanwhile, describe be applied to according to the washing machine of the second embodiment, the control method that is configured to uniformly wet clothing, but the present invention is not limited thereto.Such as, this control method is applicable to the washing machine according to the first embodiment.

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

Therefore, control piece index drum rotates in step got wet by clothing, with 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 arranged in steel ladle to carry out heating water.After this, control piece by while head roll 32 and circulating pump 730 implement main washing step.The program that drum driven action in main washing step can be selected according to user is selected from drum driven action.Circulating pump 730 is driven by predetermined space, and the water held in steel ladle 12 circulates.

Meanwhile, the cylinder in tumbling-box washing machine can via door 11 externally visibly.According to the wash cycle of embodiment and comprise wash cycle washing procedure in can implement various drum driven action.Therefore, user can see the various drum driven actions directly implemented in cylinder.That is, soft impact type washing (tumbling action), high force blow formula 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 identify.Therefore, user can experience washing and be implemented well, and this can produce and improve the satisfied effect of user's sense organ, and improves in fact the effect of detersive efficiency.

Meanwhile, Fig. 8 illustrates the figure of the relation represented between quality and intrinsic frequency.Suppose in the vibrational system of two washing machines, two washing machines have quality m0 and m1 respectively, and maximum clothing capacity is respectively Δ m.So, the transition region of two washing machines can consider that Δ nf0 and Δ nf1 determines respectively.In this case, the water yield that clothing comprises will do not considered for the time being.

Meanwhile, with reference to the washing machine of Fig. 8, less quality m1, there is the larger transition zone ranges of the washing machine of larger quality m0.That is, consider that the scope of laundry amounts change transition region diminishes with vibrational system quality and becomes greatly.

The scope of these transition regions is by the review washing machine of prior art and the washing machine of the present embodiment.

The washing machine of prior art has such structure, wherein vibrates and is delivered to steel ladle from cylinder, causes steel ladle to vibrate thus.Therefore, consider the vibration of the washing machine of prior art, steel ladle is absolutely necessary.But generally speaking, steel ladle not only has it to conduct oneself with dignity, and also has a large amount of counterweight (substantial weight) for balancing at its front portion, rear portion or circumferential surface.Therefore, the washing machine of prior art has the vibrational system of very large quality.

On the other hand, in the washing machine of the present embodiment, owing to having supporting construction, steel ladle is made not only not have counterweight but also separate with cylinder, so can not steel ladle be considered when considering the vibration of cylinder.Therefore, the washing machine of the present embodiment can have the vibrational system of relatively little quality.

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

In addition, consider the water yield that clothing comprises if simple, the Δ m in Fig. 8 will become greatly, make the dimensional discrepancy of transition region even larger.And due in the washing machine of prior art, even if make water depart from from clothing when drum rotating, water also can drop to steel ladle from cylinder, the quality caused by dewatering reduces little.Owing to considering vibration, the washing machine of the present embodiment has steel ladle independent of each other and cylinder, but the water of detachment roller affects the vibration of cylinder immediately.That is, in the washing machine of the present embodiment, the impact that in clothing, the quality of water changes is Yan Geng great relative to the washing machine of prior art.

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

Meanwhile, by reducing the oscillation intensity of cylinder, imbalance can be reduced.For this reason, before the rotary speed of cylinder enters transition region, perform even clothing dispersion (step), to make clothing scatter in cylinder as much as possible.

When balance device, can consider such method, the rotary speed of its intermediate roll is through transition region, and the mobile simultaneously arranged in balancer is positioned at the opposite side of imbalance (portion) (unbalance) of clothing.In this case, preferably mobile is positioned at the right opposite in uneven portion in the middle of transition region.

But, as mentioned above, compared with the transient state district of conventional washer, relatively wide according to the transient state district of the washing machine of the present embodiment.Therefore, even if implement dispersed step or the ball balance of clothing in the RPM lower than transient state district is with, along with drum speed is through transient state district, clothing also may in a jumble or balance may failure.

Therefore, at drum speed before transient state district or meanwhile, at least once balance can implemented according in the washing machine of the present embodiment.Here, balance may be defined as cylinder by constant speed rotate reach predetermined period.This balance allows the relative position of mobile to clothing of balancer, only in order to reduce amount of unbalance.Relatively, the homodisperse effect of clothing is realized.Finally, when drum speed implements balance through transient state district, the noise and vibration produced because of the expansion in transient state district is prevented.

Here, when implementing balance before transient state district at drum speed, can implement to balance in the RPM different from the RPM of conventional washer is with.Such as, if transient state district starts at 200RPM, then in lower than the RPM band of about 150RPM, implement balance.Because conventional washer has relatively not too wide transient state district, even if so implement balance at the RPM lower than about 150RPM, drum speed is not difficult through transient state district yet.But, there is according to the washing machine of the present embodiment the transient state district of as above relatively wide expansion.If RPM low as in conventional washer implements balance, the position of these mobiles may because of when cylinder through transient state district the balance implemented and multilated.Therefore, when implementing balance before entering transient state district at drum speed, compared with conventional balanced RPM, balance RPM can be increased according to the washing machine of the present embodiment.That is, if determine the beginning RPM in transient state district, then than by from RPM deduct start RPM about 25% the higher RPM of the RPM that calculates of value be with in implement balance.Such as, the beginning RPM in transient state district is about 200RPM, balance can higher than 150RPM lower than 200RPM RPM band in implement.

In addition, amount of unbalance can be measured between balance period.That is, this control method can also be included in the step measuring amount of unbalance between balance period, and the amount of unbalance compared and measured and permissible amount of unbalance, this permissible amount of unbalance allows the acceleration of drum speed.If the amount of unbalance measured is less than permissible amount of unbalance, so drum speed is accelerated to be in outside transient state district afterwards in balance.By contrast, if the amount of unbalance measured is permissible amount of unbalance or more, the dispersed step of clothing can be implemented again.In the case, permissible amount of unbalance can be different from allowing the permissible amount of unbalance of initial acceleration.

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

Along with the rotary speed of cylinder increases, produce such region (hereinafter, being called as in " transient oscillation district "), there is in this region the irregular transient oscillation of high amplitude.At vibration passing to steady-state vibration district (hereinafter, be called as " steady-state zone ") before, transient oscillation district high amplitude occurs brokenly, and if design (washing machine) vibrational system, then this transient oscillation district has the vibration characteristics determined.Although transient oscillation district is different according to the type of washing machine, transient oscillation occurs in the scope of 200rpm to 270rpm.Transient oscillation is considered to be caused by resonance.Therefore, be necessary that by considering that the active balance in transient oscillation district carrys out design balance device.

Meanwhile, as mentioned above, in washing machine according to an embodiment of the invention, vibration source, namely motor and the cylinder that is connected with motor are connected with steel ladle 12 by rear liner 250.Therefore, the vibration occurred in cylinder passes 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 be fixed directly to casing 110.

As the result of the present inventor's research, in washing machine according to the present invention, find the vibration characteristics usually do not observed.According to general washing machine, after transient oscillation, vibration (displacement) becomes stable.But, in washing machine according to an embodiment of the invention, such region (hereinafter, being called as " irregular oscillation ") may be produced, in this region, vibrate and after transient oscillation district, becoming steady and again become large.Such as, if there is the maximum cylinder displacement or more produced in lower than the RPM band in transient state district, or appear at the maximum cylinder displacement or more higher than the stable state step in the RPM band in transient state district, then determine to produce irregular oscillation.Alternatively, if produce the average cylinder displacement in transient state district, if produce the displacement in+20% or-20% scope of the average cylinder displacement be in transient state district, if or produced the displacement being equal to or greater than 1/3 of the maximum cylinder displacement of the intrinsic frequency in transient state district, then could determine to produce irregular oscillation.

Such as, but as the result of research, irregular oscillation occurs in higher than the RPM band in transient state district, occurs in the region (hereinafter, being called as in " irregular oscillation district ") in the scope of about 350rpm to 1000rpm.Irregular oscillation may produce due to balance device, damping system and rear liner.Therefore, in this washing machine, be necessary that by considering that irregular oscillation district and transient oscillation district carry out design balance device.

Such as, balancer is provided with ball balancer, preferably consider that the structure of balancer is selected in irregular oscillation district and transient oscillation district, the i.e. shape of the quantity of the size (size) of ball, ball, seat ring (race, raceway), the viscosity of oil and the loading (filling level) of oil.When considering transient oscillation district and/or irregular oscillation district, when especially considering irregular oscillation district, ball balancer has the major diameter of 255.8mm and the minor diameter of 249.2mm.The space including 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, such as dimethione (PDMS), is used as oil.Preferably, oil viscosity is at room temperature 300CS, and loading is 350cc.

Except the structure of balancer, consider control, preferably consider irregular oscillation district and transient oscillation district.Such as, in order to prevent irregular oscillation, if determine irregular oscillation district, then can at drum speed before irregular oscillation district, when and implement at least one times afterwards balance.Here, if the rotary speed of cylinder is relatively high, so the balance of balancer may by inappropriate enforcement, and this balance can be implemented when reducing the rotary speed of cylinder.But, if the rotary speed of cylinder is reduced to implement balance lower than transient state district, then must again through transient state district.Implement in the rotary speed reducing cylinder in the process balanced, the rotary speed of reduction can higher than transient state district.

It will be clear to someone skilled in the art that when not deviating from the spirit or scope of the present invention, various change and modification can be carried out to the present invention.Therefore, this invention is intended to cover those change and modification of the present invention of dropping on and enclosing in the scope of claim and equivalent thereof.

Claims (9)

1. a control method for washing machine, described washing machine is provided with: driver element, the motor that described driver element comprises the axle being connected to cylinder, the bearing block rotatably supporting described axle and described axle is rotated; Be connected to the suspension assembly of described driver element; And after liner, described rear liner is for sealing to prevent washings from the spatial leaks between driver element and steel ladle and for enabling described driver element move relative to described steel ladle, described control method comprises:

Water re-supplying step, is configured to when water is supplied to steel ladle, by washing action drives cylinder by rubbing with the hands; And

Circulation step, is configured to make the water circulation in described steel ladle be fed to described steel ladle again to make water, in the middle of described water re-supplying step, implement described circulation step.

2. control method as claimed in claim 1, wherein compared with the cylinder supported by suspension assembly, steel ladle is supported by more rigid.

3. control method as claimed in claim 1, wherein, described water re-supplying step is configured to after starting that water is fed to steel ladle, or after water level reaches predetermined value, drives described cylinder in predetermined period.

4. control method as claimed in claim 3, the described steel ladle arranged in wherein said washing machine and described cylinder have downward-sloping rear portion respectively.

5. control method as claimed in claim 3, is wherein configured to make the recycle circuit of water circulation be connected to the front part of described steel ladle.

6. control method as claimed in claim 3, the water supply line be wherein arranged in described washing machine is connected to the front part of described steel ladle, and

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

7. control method as claimed in claim 6, is wherein confirmed as making the glassware for drinking water supplied via described water supply line have the pressure being less than predetermined hydraulic pressure turn-on time.

8. control method as claimed in claim 7, the turn-on time of wherein said feed water valve is confirmed as, and the glassware for drinking water supplied is had be high enough to not be supplied effectively directly into the predetermined hydraulic pressure of described cylinder via described water supply line.

9. control method as claimed in claim 3, wherein compared with the cylinder supported by suspension assembly, steel ladle is supported by more rigid.