CN1566490A - Conversion method of power transmission mode for washing machine - Google Patents

Abstract

The invention discloses a method for converting power transmission mode of washing machine, which includes the following steps: when converting to the power transmission mode, in which the power is transmitted to the washing axis only, setting the mixing force according to the input voltage, and mixing by the brushless DC motor with setting mixing force, then driving the clutch motor to move the coupling to the washing position. After that, remixing by the brushless DC motor with setting mixing force in setting times; when converting to the power transmission mode, in which the power is transmitted to both the washing axis and the dewatering axis, setting the mixing force according to the input voltage, and mixing by the brushless DC motor with setting mixing force in setting times, then driving the clutch motor to move the coupling to the dewatering position. After that, remixing by the brushless DC motor with setting mixing force.

Description

The power conduction mode conversion method of washing machine

Technical field

The present invention relates to a kind of washing machine, or rather, the conversion method (method for switching driving power transmission mode ofwashing machine) that relates to a kind of power conduction mode of washing machine, above-mentioned washing machine possess a kind of agitator that utilizes low speed rotation and wash and rinsing, the novel power conduction structure (mechanism) that utilizes the sink of rotation at a high speed to dewater.

Background technology

In general, washing machine is an emulsification of utilizing washing agent, the rubbing action of the current that rotate with washing stirr and washing stirr on washings percussion and the machine that will be removed attached to all contaminations above clothes, the bedding etc.Thereby washing machine can detect the amount and the kind automatic setting washing methods of washings by sensor, and according to the amount and the kind of washings washings is injected into suitable water level, carries out washing process then under the control of micro computer.

In addition, the type of drive of existing automatic washing machine has following several, that is: send the rotary power of drive motors to wash shaft or dehydrating shaft by dynamic conveyor belt (belt) and belt pulley (pulley), thereby make the mode of agitator or drench pit rotation; By the speed of control brshless DC motor (BLDC, Brushless DC Motor), make sink hold concurrently drench pit washing and when dehydration respectively in the mode of different speed rotations.

In addition, a kind of novel structure appears again recently, when utilizing the BLDC motor, can also control respectively the power conducting path, thereby can make washing machine pass through following dual mode operation, that is: the time only make the agitator low speed rotation in washing, and when dehydration, make the rotation at a high speed simultaneously of agitator and drench pit.Carry out the structure of the washing machine of this mode below with reference to Fig. 1 to Fig. 2 b explanation.

Above-mentioned washing machine comprises with lower member: the sink drench pit 2 of holding concurrently, and it is inner and can rotate to be installed in the water jacket 1 of body; Agitator (pulsator) 3 is installed in the above-mentioned drench pit 2, but can be independent of above-mentioned drench pit 2 and rotate; Dehydrating shaft 5 is subjected to a spring bearing case (bearing case) 20 (also can rotate with reference to Fig. 2 support a), rotary power can be conducted to drench pit 2; Wash shaft 4 can be conducted rotary power to agitator 3; Brshless DC motor (BLDC) 7, its rotor (rotor) 7b can rotate along with the energising of stator (stator) 7a; Clutch configuration can switch to the power conducting path of BLDC motor 7 on wash shaft 4 or the dehydrating shaft 5 corresponding to washing stroke or dehydration stroke.

Here, above-mentioned clutch configuration comprises with lower member and constituting, that is: clutch motor (clutchmotor) 6, be installed in water jacket 1 below; Cam 600 is connected on the driving shaft 602 of above-mentioned clutch motor 6; Drive link guide frame (lever guide) 30 is fixed on the above-mentioned axle spring bearing case 20; Drive link (lever) 8, under above-mentioned clutch motor 6 drives and under the guiding of drive link guide frame 30, can do rectilinear motion, and it possesses following structure, that is: possess the groove 800 on inclined plane 801 and continue the tabular surface 802 that gets off from the lower end level on above-mentioned inclined plane 801; Connecting rod (connecting rod) 17 is installed between the cam 600 and drive link 8 of above-mentioned clutch motor 6, and when clutch motor 6 started (on), it can play drive link 8 to the moving effect of above-mentioned clutch motor 6 one laybacks; Return spring (return spring) 14, the one end is fixed on the front end of above-mentioned drive link guide frame 30, and the other end is fixed on the stopping on the projection 803 an of side of above-mentioned drive link 8, thereby it can give drive link 8 with recuperability; Sliding shoe 9, be hollow cylinder (cylinder) shape, the state that it keeps the groove that possesses inclined plane 801 800 with drive link 8 to connect in when dehydration then 801 descends along the inclined plane when switching to washing mode, thereby is on the following position of tabular surface 802; Piston (plunger) 10 can move up and down along the gathering sill 900 of above-mentioned sliding shoe 9 inside; Buffer spring 11 is between above-mentioned sliding shoe 9 and piston 10; Coupling brake (coupling stopper) 22, be fixed on above-mentioned axle spring bearing case 20 below, possess the gear teeth 221 that forms along the cylinder direction; Movable rod (rod) 12, be fork (fork) shape, the one end is connected the lower end of above-mentioned piston 10 by hinge (hinge), a fulcrum of position, intermediate portion is connected through the hinge in the lower end that is formed at the Support bracket (bracket) 220 of coupling below the brake 22, thereby when the piston lifting, movable rod can be that the motion of seesaw (seesaw) formula is done at the center with above-mentioned fulcrum; Shaft coupling (coupling) 15 can along dehydrating shaft 5 direction liftings, thereby switch the rotary power conducting path of BLDC motor 7 along with the rotation of above-mentioned movable rod 12; Connector assembly (connecter assembly) 16, the revolving force that can make rotor 7b is to wash shaft 4 conduction.

In clutch motor 6 as shown in Figure 3 and Figure 4, because cam 600 directly is connected on the driving shaft 602, therefore when driving shaft 602 rotations, above-mentioned cam 600 can be thereupon with the speed rotation, and on the position that driving shaft 602 stops, cam 600 also can stop.Action relationships to cam and switch is illustrated below.

At first, under cam 600 was positioned at state on the initial point, switch 650 kept disconnecting (off) states.Here, so-called cam 600 is positioned at the state on the initial point, shown in Fig. 5 c, refers to bar (rod) connecting axle 601 states towards the initial point direction of cam 600.

In this state, when switching the power conducting path in order to wash, clutch motor 6 has power connection (on) thereby makes its startup, and cam 600 can be realized clockwise rotation thereupon.At this moment, the anglec of rotation of cam 600 begins to reach 150 degree from initial point till before, the protuberance 650a of switch 650 is in the cam groove face 600a always, so switch 650 keeps disconnecting (off) states.

In this state, reached 150 degree if the anglec of rotation of cam 600 begins to count from initial point, the protuberance 650a of switch 650 will come from cam groove face 600a disengaging so, and switch 650 will be connected thereupon.

If as top said, the anglec of rotation of cam 600 begins to have reached 150 degree from initial point, will become the intermeshing state of tooth peak part of gear teeth 221 of tooth peak part and coupling brake 22 of the gear teeth 151 of shaft coupling 15 so.

Even so, if but clutch motor 6 continuation afterwards keep startup (on) state, and shown in Fig. 5 a, cam 600 has arrived the positions that begin to count 170 degree from initial point, and clutch motor 6 will stop (off) so.Why on the holding point of cam 600 clutch motor 6 being stopped (off) like this, is in order more accurately powershift to be arrived washing mode.

In addition, when dewatering after washing finishes, cam 600 need return on the initial point position.

For this reason, when dehydration mode is switched power, clutch motor 6 can restart, thereby cam 600 is rotated in the direction of the clock.This moment, switch 650 kept on-state, when cam 600 passed through along clockwise direction from initial point count 328 the degree angles the position along clockwise direction from holding point count 158 the degree angles the position time, the protuberance 650a of switch 650 can be positioned at cam groove face 600a, and above-mentioned thereupon switch 650 will be transformed into off-state (with reference to Fig. 5 b) owing to contact breaks away from.

Afterwards, even switch 650 has been transformed into disconnection (off) state, clutch motor 6 also can keep starting state under the control of micro computer, till cam 600 arrives initial point.In case and cam 600 is on the position of initial point, clutch motor 6 will stop (off).

Here, after above-mentioned switch 650 disconnects, begin till the cam 600 arrival initial points during in, make clutch motor 6 keep " startups " (on) state realize i.e.: the method counted of the pulse of the AC power supplies of powering by subtend clutch motor 6 by the following method.Because the cycle of clutch motor 6 rotations 1 circle is certain, if therefore cam from switch 650 disconnect beginning to arrive till the initial point the anglec of rotation promptly 32 degree divided by a swing circle, so just can calculate clutch motor 6 needs to keep starting the time of (on) state, then corresponding pulse is therewith counted, so just can be realized control clutch motor 6.

In addition, under aforesaid cam 600 is in state on the initial point, not only the gear teeth 151 of shaft coupling 15 can be removed with the engagement of the gear teeth 221 of coupling brake 22, meanwhile, top sawtooth (serration) 150a of above-mentioned shaft coupling 15 inner surfaces and bottom sawtooth 150b can be respectively with female connector (inner connecter) the 16b upper end outer surface that is connected on the wash shaft 4 on sawtooth 161b and the engagement of dehydrating shaft 5 lower ends, thereby wash shaft 4 and dehydrating shaft 5 are rotated simultaneously, realize dehydration.

The conversion method of employed pulsator mode is illustrated during below to washing in the power conduction mode conversion method of washing machine with said structure and rinsing.

Before the washing beginning, there is not power connection on the clutch motor 6, be in halted state, shown in Fig. 2 b, shaft joint 15 keeps the state of decline.

That is to say that this moment, sliding shoe 9 was positioned at the groove that possesses inclined plane 801 800 of drive link 8, shaft coupling 15 then is in declivity point place.

In this state, if on the clutch motor 6 power connection is arranged, thereby the words that clutch motor 6 is started, the driving force of so above-mentioned clutch motor 6 can be conducted to cam 600, by rotatablely moving of above-mentioned cam 600, connecting rod 17 can be to clutch motor 6 one side shiftings, and drive link 8 can be pulled to clutch motor 6 in the guiding that is subjected to drive link guide frame 30 thereupon.

At this moment, the return spring 14 that is installed in above-mentioned drive link guide frame 30 rear ends is elongated.

In addition, during cam 600 rotations, the sliding shoe 9 of contact on the inclined plane 801 of above-mentioned drive link 8 pressed owing to being tilted face 801, thereby can descend.Be positioned at that time of holding point at cam 600, shown in Fig. 2 a, sliding shoe 9 can be positioned at drive link 8 tabular surface 802 below.

As mentioned above, be accompanied by cam 600 to the holding point rotation, drive link 8 is understood to clutch motor one side shifting, thereby sliding shoe 9 is descended.Sliding shoe 9 can compression buffer spring 11 in the process that descends, and, also can descend with the piston 10 that can be installed with along the form of gathering sill 900 liftings of above-mentioned sliding shoe 9 thereupon.

Next, decline along with above-mentioned piston 10, the movable rod 12 that is connected through the hinge on above-mentioned piston 10 can be the center with the locking pin 12b of middle part fulcrum, according to the counter clockwise direction on figure rotation, the locking pin 12b of wherein above-mentioned middle part fulcrum has run through the Support bracket 220 that is fixed on the coupling brake 22 below the spring bearing case 20.

In addition, when movable rod 12 as top said, with locking pin 12b is center when rotating according to the counter clockwise direction among the figure, and the front end of above-mentioned movable rod 12 can contact on the bottom surface of shaft coupling 15, thereby above-mentioned shaft coupling 15 is promoted to axle top along dehydrating shaft 5.

Thereupon, when with powershift when the action of washing mode is finished, the gear teeth 151 that forms in above-mentioned shaft coupling 15 upper ends shown in Fig. 2 a, its can with gear teeth 221 engagements on the coupling brake 22 that is fixed on below the above-mentioned axle spring bearing case 20.

In addition, as mentioned above, the gear teeth 151 of shaft coupling 15 meshes with the gear teeth 221 of coupling brake 22, and so above-mentioned shaft coupling 15 will break away from from connector assembly 16, therefore when rotor 7b rotates, have only wash shaft 4 rotation thereupon.

That is to say, in washing, engagement on 15 on above-mentioned shaft coupling and dehydrating shaft 5 outer surfaces, with then not engagement of the sawtooth 161b that is engaged on the female connector 16b upper end on the wash shaft 4, so the rotary power of rotor 7b has only been given agitator 3 by wash shaft 4 conduction.

In addition, be engaged at the gear teeth 151 of above-mentioned shaft coupling 15 under the state on the gear teeth 221 of coupling brake 22, shaft coupling 15 can be under the effect of the gear teeth 221 of coupling brake 22 and can not rotate.

Employed conversion method to the drench pit pattern is illustrated during next to dehydration.

Under the state shown in Fig. 2 a, washed before this, when washing finishes, in the time of the power conducting path need being switched to the drench pit pattern in order to dewater, on the clutch motor 6 power connection can be arranged again, thereby make its startup, and cam 600 can begin rotation thus.

If as mentioned above, then the cam 600 of clutch motor 6 rotates always, thereby moves to dehydration location, and drive link 8 meetings are pushed open from clutch motor 6 under the effect of the recuperability of return spring 14 so.

Thereupon, the sliding shoe 9 on the tabular surface 802 of contact at drive link 8 in the washing mode is shown in Fig. 2 b, and it can finish the groove that possesses inclined plane 801 800 that is positioned at drive link 8 that time of recovery at drive link 8.

As mentioned above, when sliding shoe 9 rose along with moving of drive link 8, the compression stress that always is applied on the buffer spring 11 can reduce, thereupon, and with can be along the gathering sill 900 of above-mentioned sliding shoe 9 and the piston 10 that the form of lifting is installed also can rise.

Next, rising along with above-mentioned piston 10, the movable rod 12 that is connected through the hinge on above-mentioned piston 10 can be the center with the locking pin 12b of middle part fulcrum, (with reference to the clockwise direction rotation of Fig. 2 in a), the locking pin 12b of wherein above-mentioned middle part fulcrum has run through the Support bracket 220 that is fixed on the coupling brake 22 below the spring bearing case 20 according to figure.

In addition, as mentioned above, when movable rod 12 is center when rotating according to the clockwise direction on the figure with locking pin 12b, the front end of above-mentioned movable rod 12 can support shaft coupling 15, thereby removes the power that above-mentioned shaft coupling 15 is promoted to axle top along dehydrating shaft 5.

Along with the support force of movable rod 12 for shaft coupling 15 is disengaged, above-mentioned shaft coupling 15 meetings descend under the effect of the recuperability of deadweight and compression spring 40, and thereupon, the gear teeth 151 of above-mentioned shaft coupling 15 can come from gear teeth 221 disengagings of coupling brake 22.

In addition, if shaft coupling 15 has been fallen fully, so sawtooth 150a, the 150b of shaft coupling 15 inner surfaces can be respectively with the female connector 16b upper end outer surface that is connected on the wash shaft 4 on sawtooth 161b and the engagement of dehydrating shaft 5 lower ends, therefore when rotor 7b rotates at a high speed, wash shaft 4 and dehydrating shaft 5 also can rotate at a high speed thereupon, thereby realize dehydration.

Though aforesaid washing machine can utilize clutch the power conducting pathway radial agitator or the drench pit of BLDC motor are changed, but because its adopts is the physical transformation mode, and promptly the gear teeth by shaft coupling is connected with the engagement of the gear teeth of the brake that is coupled or removes ways of connecting.This method just merely drives clutch motor, and according to carrying out the pattern conversion with the on/off (on/off) of the switch of cam interlock, in this case, if wash under the situation of physical connection accurately and dewater failing to realize, will bring following problem so, that is: might cause damage to associated components, or washing can not be carried out normally.

Summary of the invention

Therefore the present invention designs in order to solve aforesaid existing in prior technology problem, purpose is to provide a kind of power conduction mode conversion method with washing machine of following characteristics, that is: the conversion of power conduction mode is realized exactly.

The power conduction mode conversion method feature of washing machine of the present invention is: when needs are transformed into only when wash shaft is conducted the power conduction mode of power, can set mixing power according to input voltage, and about being carried out with the mixing power of setting, stirs by the BLDC motor, drive clutch motor then, the position when making shaft coupling move to washing.If the mobile of position finished, so with regard to make again the BLDC motor with the mixing power of setting carry out set point number about stir, thereby finish the pattern conversion.When needs are transformed into power conduction mode to wash shaft and dehydrating shaft conduction power, can set mixing power according to input voltage, and make the BLDC motor with the mixing power of setting carry out set point number about stir, drive clutch motor then, the position when making shaft coupling move to dehydration.If the mobile of position finished, about the BLDC motor is carried out with the mixing power of setting, stir so, thereby finish the pattern conversion.

The power conduction mode conversion method of washing machine of the present invention is aspect pulsator mode and the conversion of drench pit pattern, can be before the actual driving of clutch motor realizes conversion and afterwards, set optimal mixing power according to input voltage, by the BLDC motor was stirred about with the mixing power of setting in moment, thereby the pattern conversion can accurately be realized, thereby can prevent to cause components damage because of translation exception.Only torque can be in the process that stroke carries out, produced owing to the present invention simultaneously, thereby the problem that scourability reduces can be prevented.

Description of drawings

Fig. 1 is the diagrammatic depiction of automatic washing machine;

Fig. 2 a and Fig. 2 b have shown the longitudinal sectional drawing of major part of the clutch configuration of Fig. 1;

Fig. 3 is the side view of the clutch motor of Fig. 1;

Fig. 4 is the decomposition side view of Fig. 3;

Fig. 5 a to Fig. 5 c is the diagrammatic depiction of the action relationships of cam and switch when illustrating that clutch motor drives; Wherein,

Fig. 5 a is the cam on the washing mode holding point and the state diagram of switch;

Fig. 5 b is the cam before being transformed into dehydration mode and the state diagram of switch;

Fig. 5 c is the cam on the initial point and the state diagram of switch;

Fig. 6 is the time chart that has shown the action relationships between clutch motor, cam and the switch;

Fig. 7 is the flow chart of the power conduction mode conversion method of washing machine of the present invention.

The specific embodiment

Embodiment to the power conduction mode conversion method of washing machine of the present invention is described in detail with reference to the accompanying drawings.

Fig. 7 is the flow chart of the power conduction mode conversion method of washing machine of the present invention.

The power conduction mode conversion method of washing machine of the present invention is at first judged (S71) to whether needing to be transformed into pulsator mode as shown in Figure 7.

Next, judgement structure according to above-mentioned steps S71, be transformed into pulsator mode if desired, so just set mixing power (S72) according to input voltage, make the mixing power of BLDC motor 7 then with above-mentioned setting, and with than stirring N time (for example 2 times) about the little angle of the anglec of rotation in when washing, or stirring about setting-up time carries out in 1 to 3 second.

At this moment, because of being engaged on the dislocation of dehydrating shaft 5 and female connector 16b on the shaft coupling 15, sawtooth 150a, the 150b of above-mentioned shaft coupling 15 inner surfaces are subjected to from the sawtooth of dehydrating shaft 5 lower ends and the pressure of effect round about of the sawtooth 161b on the female connector 16b, the therefore phenomenon that the easy rising that shaft coupling 15 takes place is restricted when clutch motor drives.Therefore before the stage that enters the position that makes shaft coupling 15 rise to washing mode, in order to remove the constraint for above-mentioned shaft coupling 15, the advanced stage of exercising about 7 counter-rotatings of BLDC motor is with the confined phenomenon of the rising that prevents shaft coupling 15.

And mixing power is to be that supply voltage on the brshless DC motor (BLDC) is set according to input voltage, and input voltage is directly proportional with the torque (Torque) of BLDC motor.Be the input voltage height then the torque of motor is big, on the contrary, the torque of the low then motor of input voltage is little.Therefore if the input voltage height, then the operating mode (duty) with the BLDC motor reduces, and then operating mode (duty) is improved if input voltage is low, can accomplish not to be subjected to the influence of the change of input voltage thus, always obtains identical mixing power.Therefore can draw the table (table) of the pairing operating mode of different input voltages (duty) by experiment.

For example, when input voltage is 310V, the operating mode (duty) of BLDC motor 7 can be controlled at ' 22 (the highest operating mode is 255) '; When input voltage is 300V, the operating mode (duty) of BLDC motor 7 can be controlled at ' 28 (the highest operating mode is 255) '; When input voltage is 250V, the operating mode (duty) of BLDC motor 7 can be controlled at ' 42 (the highest operating mode is 255) '.

Drive clutch motor (S74) then, thereby make cam 600 rotations, and judge whether switch 650 connects (on) (S75).

Next,, so just AC power supplies input pulse number is counted if above-mentioned S75 judged result is switch connection (on), then the result that counting is drawn whether at the pulse number of having set as judging (S76) more than ' 66 '.

Here, why keeping connecting under the state of (on) the paired pulses number at switch and count, thereby continue to drive clutch motor, is that the gear teeth for the gear teeth that makes shaft coupling and coupling brake meshes more firmly.

If judged result is that AC power supplies input pulse number is on the pulse number of having set among the above-mentioned steps S76, so just make clutch motor stop (S77), make BLDC motor 7 moment with the little angle of the anglec of rotation than when washing, and stirring N time (for example 2 times) about the mixing power of setting in the stage at above-mentioned S72, or stirring (S78) about setting-up time carries out in 1 to 3 second.

Why to carry out as mentioned above stirring about 2 times, purpose is in order to prevent because of motor in advance or following phenomenon takes place constructional fault, that is: the gear teeth of the gear teeth of shaft coupling and coupling brake not fully under the state of engagement machine begin action.

In addition, if the judged result of above-mentioned steps S71 is washing and rinsing end, need be transformed into the drench pit pattern in order to dewater, so just set mixing power (S79) according to input voltage, make BLDC motor 7 moment with the little angle of the anglec of rotation than when washing, and stirring N time (for example 2 times) about the mixing power of setting in the stage at above-mentioned S79, or stirring (S80) about setting-up time carries out in 1 to 3 second.Here, mixing power is set the stage (S79) and is adopted the method identical with the above-mentioned S72 stage.

Here, when needing to switch to dehydration mode after washing finishes, because of the dislocation in shaft coupling 15 and 22 engagements of coupling brake, between the gear teeth 221 of the gear teeth 151 of above-mentioned shaft coupling 15 and above-mentioned coupling brake 22, can produce the pressure of effect round about, therefore the phenomenon that the decline of shaft coupling 15 is restricted takes place when driving above-mentioned clutch motor 6 easily.Therefore before the stage that enters the position that makes shaft coupling 15 drop to dehydration mode, in order to remove constraint, the advanced stage of exercising about 7 counter-rotatings of BLDC motor for above-mentioned shaft coupling 15.

Drive clutch motor (S81) then, thereby make cam 600 rotations, and judge whether switch 650 disconnects (off) (S82).

Next,, so just AC power supplies input pulse number is counted if above-mentioned judged result (S82) disconnects (off) for switch, then the result that counting is drawn whether at the pulse number of having set as judging (S83) more than ' 66 '.

Here, why keeping disconnecting under the state of (off) number of pulses at switch and count, thereby continue to drive clutch motor, is to remove engagement for the gear teeth that makes shaft coupling fully with the gear teeth of coupling brake.

If above-mentioned S83 stage judged result is that AC power supplies input pulse number is on the pulse number of having set, so just make clutch motor stop (S84), make BLDC motor 7 moment with the little angle of the anglec of rotation than when washing, and stirring N time (for example 2 times) about the mixing power of setting in the stage at above-mentioned S79, or stirring (S85) about setting-up time carries out in 1 to 3 second.

Why to carry out as mentioned above stirring about 2 times, purpose is in order to prevent because of motor in advance or following phenomenon takes place constructional fault, removes fully at the gear teeth of shaft coupling and the gear teeth of coupling brake that machine begins action under the state of engagement that is:.

Claims (4)

1. washing machine comprises: brshless DC motor, as the drive source of washing machine, constitute by rotor and stator, and its rotor is connected with wash shaft, and stator then is installed in the outside of above-mentioned rotor and rotor can be wrapped up; Clutch motor can be sent on the position of washing and dehydration by shaft coupling being risen or descending; Shaft coupling can be when above-mentioned clutch motor drives and its interlock, thereby rises or descend, and thus when washing only to above-mentioned wash shaft conduction power, when dehydration, then conduct power simultaneously to wash shaft and the dehydrating shaft that is positioned at outside the wash shaft;

Power conduction mode conversion method for the washing machine with said structure is characterized in that:

When needs are transformed into only when wash shaft is conducted the power conduction mode of power, can set mixing power according to input voltage, and stir about brshless DC motor is carried out with the mixing power of setting, drive clutch motor then, the position when making shaft coupling move to washing;

If the mobile of position finished, so with regard to make again brshless DC motor with the mixing power of setting carry out set point number about stir, thereby finish the pattern conversion;

When needs are transformed into power conduction mode to wash shaft and dehydrating shaft conduction power, can set mixing power according to input voltage, and make brshless DC motor with the mixing power of setting carry out set point number about stir, drive clutch motor then, the position when making shaft coupling move to dehydration;

If the mobile of position finished, about brshless DC motor is carried out with the mixing power of setting, stir so, thereby finish the pattern conversion.

2. the power conduction mode conversion method of washing machine according to claim 1, it is characterized in that: the above-mentioned stage according to input voltage setting mixing power is meant sets the stage of operating mode with reference to the input voltage/operating mode table that draws by experiment according to present input voltage.

3. the power conduction mode conversion method of washing machine according to claim 1 is characterized in that: the stage of stirring about brshless DC motor is realized is to instigate the anglec of rotation little angle of brshless DC motor with than washing or rinsing the time to realize the stage of stirring.

4. the power conduction mode conversion method of washing machine according to claim 1 is characterized in that: the stage of stirring about brshless DC motor is realized is to instigate the stage of stirring N time or stirring in the time of setting about brshless DC motor.

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