CN1099440A - Automatic washing maching and method for confirmation of clutching operation thereof - Google Patents
Automatic washing maching and method for confirmation of clutching operation thereof Download PDFInfo
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- CN1099440A CN1099440A CN94102103A CN94102103A CN1099440A CN 1099440 A CN1099440 A CN 1099440A CN 94102103 A CN94102103 A CN 94102103A CN 94102103 A CN94102103 A CN 94102103A CN 1099440 A CN1099440 A CN 1099440A
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Abstract
The invention relates to an automatic washing machine and a method for ensuring the joint working condition of the washing machine. The washing machine comprises an external barrel, a movable internal barrel provided with a through hole, a flotage generating device used for raising up the internal barrel according to the water level in the external barrel, a drive motor arranged in the center of the outer bottom of the external barrel, a gyrator arranged on the top end of a motor drive shaft, and a joint device used for jointing the internal barrel with the external barrel or the gyrator selectively according to the lifting position of the internal barrel guided by the motor drive shaft. The joint working condition of the invention is obtained by comparing the calculated driving time or the motor stopping time of the motor with the preconcerted reference time.
Description
The present invention relates generally to a kind of automatic washing machine, or rather, relate to a kind of automatic washing machine and a kind of method of determining its clutching operation, wherein, one the laundry and dehydration barrel by buoyancy and the deadweight in the axial lifting of a CD-ROM drive motor between laundry state and two positions of dewatering state its position of conversion.
The professional and technical personnel is very familiar, a kind of automatic washing machine commonly used have be contained in outside, one outer barrel of bottom, by a V-arrangement driving belt CD-ROM drive motor connected to one another and a clutch.Washing machine also has a washing shaft and a dehydrating shaft, and each is activated the effect of motor revolving force under the bonding operation of the clutch that is turned, thereby realizes required laundry operations or dehydrating operations.
Figure 1 shows that an example of automatic washing machine commonly used.This washing machine has a laundry and dehydration barrel or interior bucket 12, and barreled is one outside in barrels 11 in this, and the revolving force by a CD-ROM drive motor 13 makes its rotation.
Here, CD-ROM drive motor 13 is contained in outside, outer bucket 11 bottoms, connects with a clutch 16 by a V-arrangement driving belt 14, and this belt installs around on a motor belt pulley and a clutch pulley, and is as described above.
Automatic washing machine also has two kinds of axle spares, and one is the dehydrating shaft that comprises dehydrating shaft 19 up and down and 21, and another is a washing shaft 27. Dehydrating shaft 19 and 21 and washing shaft 27 do coaxial extension from clutch 16, be connected with a circulator 15 with interior bucket 12 respectively.Here, circulator 15 can be a undulator or an agitator; This depends on the type of washing machine.
Fig. 2 is the amplification view of clutch 16 structures.In this clutch 16, a spring spool 18 is fixed on the bottom of a gear shaft 17, and the revolving force of CD-ROM drive motor 13 acts directly on this spring spool by vee-belt 14.
One clutch spring 22 installs around on following dehydrating shaft 21, and this axle brakes drum with last dehydrating shaft 19 and one and gear housing 20 fuses.This clutch spring 22 is being controlled the revolving force that CD-ROM drive motor 13 passes to clutch 16 in the laundry washer operation.
For on the outer surface of braking drum and gear housing 20, adding a predetermined pressure, on braking drum and gear housing 20, install around a brake band 29.
Clutch 16 also has a clutch wheel rim 23, and this wheel rim has gear 23a and engages with the outer surface of clutch spring 22 on its periphery surface.In addition, a clutch wheel rim cam 25 is contained in the lower end of a brake lever 24 and turns.
Be 12 counter-rotatings of bucket in preventing, clutch 16 has a unidirectional spring clutch 26.
One planet gear 28 is housed so that before the revolving force of gear shaft 17 passes to washing shaft 27, reduce this revolving force in clutch 16.
Be under the situation of laundry state at this automatic washing machine commonly used, clutch is in disengaged state, and like this, only circulator 15 alternately rotates and interior bucket 12 transfixions on positive and negative both direction.But be at washing machine under the situation of dewatering state, clutch is in engagement state, like this, and the rotation at a high speed simultaneously of circulator 15 and interior bucket 12.
Below elaborate with regard to the operational circumstances of this washing machine commonly used under laundry state and dewatering state.
Under the laundry state of washing machine, CD-ROM drive motor 13 is rotated in the forward power with it and passes to clutch 16 by the vee-belt 14 that installs around on clutch pulley.In this case, clutch pulley is rotated in the forward and clutch spring 22 is screwed, thereby the revolving force of CD-ROM drive motor 13 is passed to down dehydrating shaft 21 by spring spool 18.
But the gear 23a of the clutch wheel rim 23 on clutch spring 22 outer surfaces promotes clutch wheel rim cam 25 and stops clutch spring 22 to screw, thereby makes the revolving force of motor 13 can not pass to dehydrating shaft 19.
At this moment, can only pass to washing shaft 27 after the revolving force that passes to the motor 13 of gear shaft 17 is reduced by planetary gear 28.
Therefore, circulator 15 rotations that just connect with washing shaft 27 are to finish required laundry operations.
Simultaneously, under the laundry state, the reverse rotation power of CD-ROM drive motor 13 passes to clutch 16 by vee-belt 14, this with above be identical to forward revolving force illustration.In the case, the clutch pulley reverse rotation, this unclamps clutch spring 22, thereby makes the revolving force of gear shaft 17 can not pass to dehydrating shaft 19 and just pass to washing shaft 27 by planetary gear 28.At this moment, before being passed to washing shaft 27, revolving force just it has been reduced by planetary gear 28.
When the revolving force of gear shaft 17 reduces by planetary gear 28, in gear housing 20, can produce a counter torque, thereby make dehydrating shaft 19 do reverse rotation.
But, unidirectional spring clutch 26 and install around this reverse rotation that all can stop dehydrating shaft 19 at the brake band 29 of braking drum and gear housing 20 reliably.
Under the dewatering state of washing machine, the power that is rotated in the forward of CD-ROM drive motor 13 passes to clutch 16 by the vee-belt 14 that installs around on clutch pulley.In the case, clutch pulley is rotated in the forward, and this can make clutch spring 22 screw, thereby connects the solenoid (not shown) of handling draining valve, and pull lever 30.
So clutch spring 22 is close on the spring spool 18, and throw off with the gear 23a of clutch wheel rim cam 25 and clutch wheel rim 23 on the brake lever 24 of bar 30 interoperations, simultaneously, brake band 29 unclamps with the outer surface of gear housing 20.Therefore, the revolving force of spring spool 18 passes to the following dehydrating shaft 21 of gear housing 20, and makes the last dehydrating shaft 19 that constitutes one with gear housing 20 do to rotate at a high speed without deceleration.So the interior bucket 12 and the circulator 15 that connect with dehydrating shaft 19 and washing shaft 27 are respectively done rotation at a high speed, thereby finish required dehydrating operations.
Finished or the dewatering state of washing machine when being cancelled in the required water smoking, the solenoid of handling draining valve has just disconnected.
When the solenoid of draining valve was being handled in disconnection, the bar 30 of tension was deviate from from its tension state, and clutch wheel rim cam 25 meshes with the 23a of tooth portion of clutch wheel rim 23.Meanwhile, brake band 29 is close on the outer surface of gear housing 20, thereby makes washing machine be converted into the laundry state.So braking drum and gear housing 20 stalls.
Therefore, interior bucket 12 stalls that engage with dehydrating shaft 19 and gear housing 20 are to finish the operation of washing machine.
As mentioned above, automatic washing machine commonly used like this must be provided with the complicated clutch of a cover so that the revolving force of CD-ROM drive motor is passed to interior bucket selectively according to the mode of operation of washing machine.Therefore, washing machine tends to break down in its complicated clutch components, in addition, clutch is set, and when the revolving force with CD-ROM drive motor passes to laundry arbor or dehydrating shaft selectively, can produce vibration and power dissipation.
Therefore, the object of the present invention is to provide a kind of automatic washing machine, in this washing machine, the above problem can both give to solve, bucket lifting realizes state conversion required between washing machine state and the dewatering state to this washing machine in it by making, and make its CD-ROM drive motor be contained in the outer bottom center of outer bucket, thereby obtain required structural stability.
Another object of the present invention is to provide a kind of method to determine the clutching operation of above-mentioned automatic washing machine.
In a kind of pattern, the invention provides a kind of automatic washing machine, this automatic washing machine has: an outer bucket, in order to the washing machine water of packing into; One movable interior bucket in order to laundry and dehydration, is made concentric movable layout in the bucket outside so that lifting, and have a lot of through holes on sidewall; One buoyancy generating means, buoyancy adorn the water level of the water of doing washing corresponding to institute in the bucket outside, and buoyancy makes its rising on interior barrel; One, the bottom centre of bucket and interior bucket outside rotatably passing, and internally the lifting of bucket play the guiding role; One motor makes a revolving force of rotation in order to generation; One circulator produces flowing of water in order to the revolving force that utilizes motor, is contained in the top of axle; One engagement device, in order to position according to the interior bucket of lifting under the guiding of axle, in making bucket selectively with outer bucket and circulator in one of engage.
The present invention also provides a kind of method of definite automatic washing machine staving clutching operation, may further comprise the steps: CD-ROM drive motor when laundry water has reached a predetermined water level, and when motor being added a predetermined reference voltage, calculate the driving time of motor; Whether the rotating speed of judging motor reaches a reference speed; When reaching reference speed, motor rotary speed stops to calculate the driving time of motor and stopping to add reference voltage in motor; The driving time that calculates was compared with a fiducial time, when judging that the time of calculating is longer than fiducial time, be defined as dewatering state, under this state, circulator and interior bucket have been engaged by this so that rotate together, and when judging that the time of calculating is shorter than fiducial time, be defined as the laundry state, under this state, interior bucket engages with outer bucket, only apparatus for generation of water flow rotation.
To other purposes of the present invention and situation can from following with reference to accompanying drawing to drawing the embodiment illustration, in the accompanying drawing:
Fig. 1 is the schematic diagram of an automatic washing machine of using always;
Fig. 2 is a washing machine internal clutch structure amplification view shown in Figure 1;
Fig. 3 is the cross-sectional schematic of automatic washing machine one main embodiment of the present invention, and the laundry state and the dewatering state of washing machine is shown simultaneously;
Fig. 4 is the local amplification profile of washing machine shown in Figure 3;
Fig. 5 is the local amplification view of washing machine drum body engagement device engagement state shown in Figure 3;
Fig. 6 a-6c is respectively the view of denticle engagement situation in each mode of operation of washing machine shown in Figure 3, and wherein, Fig. 6 a illustrates an intermediateness, and Fig. 6 a illustrates the laundry state, and Fig. 6 c illustrates dewatering state;
Fig. 7 is the block diagram of washing machine inner motor driving control device shown in Figure 3;
Fig. 8 CD-ROM drive motor rotating speed that is washing machine shown in Figure 3 under the situation of connecting motor is corresponding to the change curve of elapsed-time standards;
Fig. 9 CD-ROM drive motor rotating speed that is washing machine shown in Figure 3 under the situation of turn-offing motor is corresponding to the change curve of elapsed-time standards;
Figure 10 a is a flow chart, and a kind of method that the time of motor continuity rotation behind the motor of turn-offing determines the washing machine clutching operation of utilizing of the present invention is shown;
Figure 10 b is a flow chart, and a kind of method that time that motor behind the motor reaches a predetermined reference speed determines the washing machine clutching operation of connecting of utilizing of the present invention is shown;
Figure 11 is the schematic diagram of automatic washing machine second embodiment of the present invention.
Figure 3 shows that a main embodiment of automatic washing machine of the present invention.As shown in the figure, washing machine has an outer bucket 1, and this barrel supported by the cramp bar in casing or the housing.Bucket 2 is made concentric rotary type layout in the bucket 1 outside in one laundry and dehydration barrel or the title.Bucket 2 has a lot of through hole (not shown) in this on its sidewall.
In addition, the outer bottom of bucket 1 is equipped with a CD-ROM drive motor 3 outside.This CD-ROM drive motor 3 is contained in the end frame 6, is installed in the outer bottom of outer bucket 1 with the member of screw and so on.The output shaft of CD-ROM drive motor 3 rotatably passes the bottom centre of outer bucket 1 and interior bucket 2.The output shaft of motor 3 connects with its terminal fixing on the inner bottom part of interior bucket 2 with a circulator 5 or a undulator.Revolving force by motor 3 makes these circulator 5 rotations and produce flowing of water in interior bucket 2 in laundry operations.
Because CD-ROM drive motor 3 is installed in outer barrel 1 outer bottom center, as mentioned above, CD-ROM drive motor 3 and output shaft 4 thereof can be assembled on bucket 1 and the bucket 2 simultaneously, thereby can obtain the structural stability of desired washing machine position of centre of gravity and washing machine.The noise and the vibration that like this, just can reduce in washer operation significantly to be produced.
This washing machine generally is called direct drive-type washing machine.
But, it should be noted that and the invention is not restricted to above-mentioned direct drive-type washing machine, also applicable to indirect drive-type washing machine, in this washing machine, CD-ROM drive motor is contained in outer bucket outer bottom but has on the position of radially departing from bottom centre, and by a vee-belt its revolving force is passed to washing shaft indirectly.
When the present invention is used for indirect drive-type washing machine, the structural stability of washing machine is damaged to some extent, because, just may not reach the desired poised state of washing machine because radially depart from CD-ROM drive motor and outer barrel bottom center.But this washing machine can improve the power transmission between motor drive shaft and the washing shaft, thereby can adopt the less CD-ROM drive motor of rated power.Below also will describe adopting indirect drive-type washing machine of the present invention in conjunction with Figure 11.
In this main embodiment, washing machine is one to have the fluctuation formula washing machine as the undulator of circulator 5.But the present invention is also applicable to a stirring formula washing machine that has as the agitator of circulator 5.
Washing machine of the present invention also has one and is contained between end frame 6 upper surfaces and outer bucket 1 lower surface sealing gasket 7 that leaks in order to the water that prevents to do washing.
Some sliding components 8 are housed, as sliding bearing or slide bushings on the outer surface of motor drive shaft 4.
In these sliding components 8 support smoothly bucket 2 along in the confined space of motor drive shaft 4 between circulator 5 and outer bucket 1 the lifting action of doing and interior barrel 2 spinning movement made from motor drive shaft 4.
Washing machine of the present invention also has and is contained between circulator 5 lower surfaces and interior bucket 2 interior bottom surface and the staving engagement device between bucket 2 outer bottoms surface and outer bucket 1 interior bottom surface in being contained in.Bucket 2 engaged with circulator 5 or outer bucket 1 selectively in this staving engagement device made according to the washer operation state.
Fig. 4 is a local amplification profile of washing machine, and Fig. 5 is the local amplification view of washing machine engagement device engagement state.Press present embodiment, engagement device has first and second 2a of tooth portion and the 2b, and this two teeth portion forms in the bottom of interior bucket 2, vertically a predetermined distance at interval.In addition, on the lower surface of circulator 5, be formed with one the 3rd 5a of tooth portion, when interior bucket 2 is in its low level or is in dewatering state, with first 2a of the tooth portion engagement of interior bucket 2.Engagement device also has the 4th 1a of tooth portion that forms on bucket 1 the interior bottom surface outside, is at interior bucket 2 that it is high-order or mesh with second 2b of tooth portion of interior bucket 2 when being in the laundry state.
By this main embodiment of the present invention, first 2a of tooth portion and second 2b of tooth portion of interior bucket 2 are the straight-tooth wheel shape, respectively have the square tooth that forms on a cylindrical outer surface.The distance that the 2a of tooth portion of interior bucket 2 and 2b are vertically predetermined at interval.Third and fourth 5a of tooth portion and 1a have internal gear, and each internal gear has the square tooth that forms on the interior perimeter surface of an annular solid, so that mesh with first and second 2a of tooth portion and 2b respectively.The 3rd the 4th 5a of tooth portion and the square tooth of 1a mesh with first and second 2a of tooth portion and 2b respectively.
Preferably make the square tooth of first to the 4th tooth portion have the circular arc top so that engagement smoothly each other.
In washing machine, bucket floating device or buoyancy generating means in being provided with below interior bucket 2 are so that bucket 2 was made lifting action in the water level generation buoyancy of laundry water made in according to outer barrel 1.
By this main embodiment, the buoyancy generating means has a plurality of radially floors 9 that form a plurality of air cavitys 10.
On bottom one side of interior bucket 2, be provided with a drainpipe (not shown).
This drainpipe is in order to discharging laundry water reposefully from interior bucket 2 bottoms, and prevents to cause negative pressure on the lower surface of circulator 5 in laundry operations.The ballast pump that is intended to collect useless fiber material at washing machine draws in the operation, is necessary to prevent to produce this negative pressure.
Stop using and when not having laundry water or this washing machine outside in the bucket 1 and being in the laundry initial state, the interior bucket 2 of washing machine is positioned at its low level, as on the left of Fig. 3 and shown in Fig. 6 c at washing machine.
Under this state, first 2a of tooth portion of the 3rd 5a of tooth portion of circulator 5 and interior bucket 2 meshes and second 2b of tooth portion and the 4th 1a of the tooth portion disengagement of bucket outward of interior bucket 2.
When connecting motor 3 under this state, can realize dewatering state, circulator 5 and interior bucket 2 rotate together with same rotational speed under this state.
Below situation that washing machine is operated according to selected mode of operation in conjunction with the accompanying drawings.
During the laundry state of selected washing machine under state shown in Fig. 6 c, CD-ROM drive motor 3 preferably with than low velocity by a certain direction rotation, meanwhile, laundry water infeeds outer bucket 1.
Corresponding to the low speed rotation of motor 3, the rotation at a slow speed together of circulator 5 and interior bucket 2.Charge into outer bucket 1 and when reaching a predetermined water level, the air cavity 10 of interior barrel of 2 buoyancy generating means is full of air at laundry water.Therefore, owing to air is full of air cavity 10 corresponding to laundry water level in the outer bucket 1, interior bucket 2 has added consequent buoyancy.
The buoyancy F that is produced by the buoyancy generating means can be represented by the formula:
F＝ρGV
Wherein, ρ is the laundry water density, and G is an acceleration of gravity, and V is long-pending for immersing the inner drum that comprises air cavity in the laundry water.
When the buoyancy F in acting on the bucket 2 surpassed the gravity that acts on the interior bucket 2, interior bucket 2 promptly rose along motor drive shaft 4.
Because the guiding of the sliding component 8 in interior bucket 2 is contained between bucket and the motor drive shaft 4, interior bucket 2 can rise smoothly along motor drive shaft 4.
When interior bucket 2 and circulator 5 rotates then buoyancy rising by being produced by the buoyancy generating means at a slow speed, its first tooth 2a of portion promptly throws off with the 3rd 5a of tooth portion of circulator 5, and its second tooth 2b promptly with the 4th 1a of the tooth portion engagement of outer bucket 1, thereby realize required laundry state.
At length, at interior bucket 2 when its low level rises, shown in Fig. 3 left side and Fig. 6 c, then shown in the arrow of Fig. 3 right side and Fig. 6 a, first 2a of tooth portion of interior bucket 2 and the 3rd 5a of tooth portion of circulator 5 throw off, and second 2b of tooth portion of interior bucket 2 and the 4th 1a of the tooth portion engagement of bucket 1 outward, thereby realization laundry state, under this state, interior bucket 2 is fixed on the outer bucket 1, shown in Fig. 6 b.
Realize in the bonding operation of laundry state at the above, first 2a of tooth portion of interior bucket 2 when interior bucket rises and the 3rd 5a of tooth portion of circulator 5 throw off smoothly.But, because second 2b of tooth portion of interior bucket 2 can be in each other directly position engaged with respect to the 4th 1a of tooth portion of outer bucket 1, must make motor 3 do rotation at a slow speed, thus in making bucket 2 at a slow speed rotation so that its second tooth 2b of portion correctly with the 4th 1a of the tooth portion engagement of outer bucket 1.
Although do not finish fully as yet and mode of operation when being converted into the laundry state,, thereby also fail to enter laundry operations because interior bucket 2 rotates by the revolving force of motor 3 in above bonding operation.In addition, rise and when finishing bonding operation fully a side of barrels 2 in the clothings in the interior bucket 2 tend to accumulate under the unidirectional rotation of circulator 5 at the interior bucket 2 of rotation at a slow speed.For overcoming above problem, be necessary when water level reaches a predetermined altitude, to determine clutching operation.The work of this definite clutching operation determines that by the following stated clutching operation device carries out.
As shown in Figure 7, clutching operation determines that device has a speed detector S, and in order to detect the rotating speed of CD-ROM drive motor 3, this rotating speed changes with the load torque that produces in the washing machine bonding operation.This speed detector S is connected on the microcomputer M, records the signal of CD-ROM drive motor 3 rotating speeds to this computer M output one representative.Microcomputer M promptly calculates the driving time of motor 3 when obtaining the signal of speed detector S, reach a predetermined reference speed until the rotating speed of the motor 3 that records.This computer M also adds a predetermined reference voltage on motor 3.Microcomputer M compares the driving time that calculates with predetermined fiducial time, long with definite which time.When being longer than fiducial time in the time of calculating, microcomputer M determines promptly to have realized dewatering state that under this state, interior bucket 2 rotates with circulator 5 under the revolving force effect of motor 3.And when the time of calculating was shorter than fiducial time, microcomputer M determined to have realized the laundry state that under this state, only circulator 5 rotates under the revolving force effect of motor 3.
When the reference voltage that the voltage instruction value conduct of presetting a microcomputer M is scheduled to, the signal of microcomputer M detection speed detector S, and CD-ROM drive motor 3 add that on motor 3 reference voltage reaches predetermined reference speed until the rotating speed of motor 3.
Fig. 8 is illustrated under the situation of connecting motor 3, the curve map that the rotating speed of CD-ROM drive motor 3 changes with elapsed-time standards.This curve is by adding reference voltage on the CD-ROM drive motor 3 and connecting the rotation speed change that detects CD-ROM drive motor 3 under the condition of motor 3 and obtain.
In Fig. 8 curve map, curve A is at the revolving force of motor 3 curve of velocity variations during turning rotator 5 only.In the case, the rotating speed of CD-ROM drive motor 3 increases fast, because the inertia force of circulator 5 is very little, in other words, mechanical time constant is very little.
In Fig. 8 curve map, curve B is for the revolving force of motor 3 makes in barrels 2 and the curve of circulator S velocity variations when rotating together.In this case, the rotating speed of CD-ROM drive motor 3 increases very slow under identical voltage instruction value, because the inertia force of interior bucket 2 is very big, in other words, mechanical time constant is very big.
Therefore, reaching predetermined reference speed ω
0Required time t
1And t
2Between exist clearly difference, A in Fig. 8 curve map and the B curve can see too clearly.Just can determine by the difference of the caused velocity variations of difference of inertia force whether bonding operation is finished fully when like this, utilizing starter 3.
Figure 10 b is a flow chart, be illustrated in connect motor 3 after, utilize to reach the motor required time of 3 predetermined reference speeds and determine the method for clutching operation.
Shown in this flow chart, the water of will doing washing is fed in the outer bucket 1 to reach predetermined water level.When reaching predetermined water level,, meanwhile, calculate motor driving time t by reference voltage starter 3.
Whether the rotating speed of determining motor 3 has then reached reference speed.When the rotating speed of motor 3 has reached reference speed, promptly stop to add reference voltage in motor 3, and stop to calculate driving time t.
So with the driving time t that calculates and fiducial time t
0Compare.When the driving time that calculates is longer than fiducial time, t＞t just
0The time, just can determine to have realized dewatering state, under this state, interior bucket 2 can be with circulator 5 rotations.On the contrary, when the driving time that calculates is shorter than fiducial time, t＜t just
0The time, just can determine to have realized the laundry state, under this state, can only make circulator 5 rotations.Washing machine is realized its mode of operation according to above judgement.
On the other hand, microcomputer M adds reference voltage on motor 3, until reaching predetermined reference speed by detected motor 3 rotating speeds of speed detector S.When detected motor 3 rotating speeds have reached reference speed, just stop to add reference voltage when motor 3, computer M promptly calculates the driving dwell time to be stopped fully until the rotation of motor 3.
So, the driving dwell time of calculating was compared with fiducial time.When the dwell time of calculating is longer than fiducial time, can determine to have realized dewatering state, under this state, interior bucket 2 can be with circulator 5 rotations.On the contrary, when the dwell time of calculating is shorter than fiducial time, the laundry state can be determined to have finished, under this state, circulator 5 rotations can only be made.
Therefore, the present invention can provide a kind of difference of inertia force between interior bucket 2 and the circulator 5 of utilizing to determine that the method for clutching operation is shown in Fig. 9 and 10a.
Fig. 9 is the curve map that the rotating speed of CD-ROM drive motor 3 under the situation of turn-offing motor 3 changes with elapsed-time standards.As shown in the figure, predetermined reference voltage is added in the rotating speed until motor 3 reaches predetermined reference speed ω on the motor 3
0When the rotating speed of motor 3 reaches reference speed, promptly stop to add reference voltage in motor 3, and stop fully until the rotation of motor 3 with microcomputer M calculating driving dwell time.From curve map, can find out significantly that the driving dwell time of calculating is different with the mode of operation of washing machine.Just, it is shorter relatively under the situation that shows the curve A that only makes circulator 5 rotations to drive dwell time, and relative longer under the situation that shows circulator 5 and interior bucket 2 curve B of rotation together.Therefore, just can utilize closing down motor 3 back and determine by the difference of the caused velocity variations of difference of inertia force whether bonding operation is finished fully.
Figure 10 a is a flow chart, is illustrated in the method that the continuity rotational time that utilizes motor 3 behind the motor 3 is determined clutching operation of closing down.
Shown in this flow chart, the water of will doing washing is fed to outer barrel 1 to reach predetermined water level.When reaching predetermined water level, by reference voltage starter 3.When the rotating speed of motor 3 reaches reference speed, promptly stop to add reference voltage in motor 3, and calculate driving dwell time t ' when motor 3 stops fully with microcomputer M.
When the rotation of motor 3 stops fully, with the driving dwell time t ' and t ' fiducial time that calculates
0Compare.When the driving dwell time of calculating is longer than fiducial time, t '＞t ' just
0The time, can determine to have realized dewatering state, under this state, interior bucket 2 can be with circulator 5 rotations.On the contrary, when the driving dwell time of calculating is shorter than fiducial time, t '＜t ' just
0The time, can determine to have realized the laundry state, under this state, can only make circulator 5 rotations.Washing machine is realized its mode of operation according to above judgement.
In case when having determined clutching operation, continue outside bucket 1 feed laundry water to reach the water level of predetermined laundry state.The circulator 5 that is fixed on the motor drive shaft 4 is done the rotation of positive and negative both direction with the rotation of motor 3 positive and negative both directions, thereby causes flowing of water in interior bucket 2, realizes required laundry operations.
Under this laundry state, in effect on the interior bucket 2 this revolving force aspect two that flows of frictional force between laundry water and the clothing and water is arranged, thereby interior bucket has the tendency of rotation.But, according to the present invention, because its second tooth 2b of portion is meshed the rotation of bucket 2 in can preventing reliably with the 4th 1a of tooth portion of the outer bucket of fixing 1.
When after above-mentioned laundry operations, beginning dehydrating operations, by a solenoid or a drain motor draining valve (not shown) that is contained in outer bucket 1 bottom is opened, thereby from outer bucket 1, discharged the water of doing washing.Along with discharging laundry water from outer bucket 1 gradually, interior bucket 2 descends, this with above-mentioned in rising situation of barrels 2 be opposite.
Just, when the water water level of doing washing owing to draining descended gradually, the volume that is immersed in the interior bucket 2 in the laundry water reduced, thereby the buoyancy on the bucket 2 in having reduced to act on.
In acting on the buoyancy of bucket on 2 less than act on same in during gravity on the bucket 2, interior bucket 2 glides along motor drive shaft 4, thereby reduces to its low level.
Along with interior bucket 2 descends along motor drive shaft 4, second 2b of tooth portion of interior bucket 2 and the 4th 1a of tooth portion of outer bucket 1 throw off, and the 3rd 5a of tooth portion of first 2a of tooth portion of interior bucket 2 and circulator 5 engagement.
In other words, interior bucket 2 is connected with circulator 5 and no longer is connected with outer bucket 1, and like this, interior barrel 2 and circulator 5 transmit its torque each other by its intermeshing tooth 2a of portion and 5a, thereby the one superhigh speed is rotated and realizes required dehydrating operations.
In the case, because first 2a of tooth portion of interior bucket 2 may make it can not directly mesh each other with respect to the 3rd tooth portion 5a present position of circulator 5, motor 3 must rotate at a slow speed make so that circulator 5 rotates at a slow speed the 3rd 5a of tooth portion correctly with first 2a of the tooth portion engagement of interior bucket 2.Here, because interior bucket 2 has relatively large weight, freely fall under the anhydrous condition in the bucket 1 outside so that the 3rd 5a of tooth portion of first 2a of tooth portion and circulator 5 barrel is subjected to a serious mechanical shock in can making when meshing at it.
For preventing this mechanical shock on interior bucket 2 at 2a of tooth portion and 5a engagement, washing machine of the present invention makes under the condition that leaves certain laundry water in the outer bucket 1 of being engaged on of 2a of tooth portion and 5a and carries out, thereby available water cushions this mechanical shock.
When microcomputer M did not determine that joint has been finished as yet, no matter in the interior bucket 2 how many clothings are arranged, the water of still will doing washing was fed in the outer bucket 1 until reaching predetermined peak level.In addition, when microcomputer M did not determine clutching operation as yet even laundry water has reached peak level, the laundry operations of washing machine can not begin.
Figure 11 shows that second embodiment of automatic washing machine of the present invention.In this embodiment, total configuration is described identical with operating effect and main embodiment, but has changed the position of CD-ROM drive motor, makes its revolving force pass to washing shaft indirectly.Just, CD-ROM drive motor 103 is not the outer bottom center that is contained in outer bucket, but depart from the center on the outer bottom of bucket 1 outside being contained in, indirectly its revolving force is passed to washing shaft 104 by a driving belt 102 that installs around on motor 103 output shaft 103a and a washing shaft 104 belt pulleys 101.Here, on the top of washing shaft 104 circulator 5 is housed.In other words, in this embodiment, the present invention is used for indirect drive-type washing machine.
When the present invention was used for indirect drive-type washing machine as shown in figure 11, the structural stability of washing machine was poor slightly, because because CD-ROM drive motor radially departs from the bottom centre of outer bucket, can not obtain the due balance of washing machine.But this second embodiment can improve or improve the power gearratio between motor drive shaft 103a and the washing shaft 104, thereby can adopt the less relatively CD-ROM drive motor of rated power to motor 103.
As mentioned above, automatic washing machine utilization of the present invention is come liter or is fallen interior bucket by the buoyancy of laundry water generates or the weight of interior bucket, so that bucket in this is engaged with outer bucket or circulator, thereby realize laundry state or dewatering state, and in selectively the revolving force of CD-ROM drive motor being delivered on the bucket, and need not complicated clutch commonly used.When feed reaches a predetermined water level for the laundry water of outer bucket, make CD-ROM drive motor on positive and negative both direction, rotate at a slow speed with the spur gear type tooth portion that correctly makes bucket one in and circulator or outside barrel respective teeth portion mesh, and realize the joint of required staving smoothly.
In washing machine of the present invention, the engagement of each tooth portion is to finish under the condition in the bucket outside a certain amount of laundry water is stayed, thus by left water cushioned act on when the engaging tooth portion in barrel on mechanical shock.
In washing machine, its CD-ROM drive motor is to be contained in the outer bottom of outer bucket in the heart, thereby obtains required structural stability.The mounting structure of this motor has also reduced the noise and the vibration that produce in the washer operation.
Another advantage of this washing machine is: it is simple in structure, and is easy to manufacture.This simple washing machine structure has reduced the quantity of member simultaneously, thereby has prevented operating trouble, has improved the reliability of washing machine.
More than specific preferred embodiment of the present invention is described by accompanying drawing, be understood that to the invention is not restricted to these specific embodiments, can make various change and remodeling to it and do not break away from scope of the present invention and the essence that limits in the appended claims being familiar with these professional personnel.
Claims (17)
1, a kind of automatic washing machine has:
One outer bucket is in order to the laundry water of packing into;
One movable interior bucket, in order to laundry and dehydration, described in bucket make concentric movable layout in described outside barrel so that lifting, and on its sidewall, have a lot of through holes;
One buoyancy generating means, buoyancy are corresponding to the water level of adorning laundry water in the bucket outside described, and described buoyancy is added in described interior bucket upward so that bucket rising in this;
One, rotatably pass the bottom centre of outer bucket and interior bucket, and in described barrel lifting is play the guiding role;
One motor apparatus makes described revolving force that rotates in order to generation;
One apparatus for generation of water flow produces flowing of water in order to the revolving force that utilizes described motor apparatus, is contained in the top of described axle;
One engagement device, in order to position according to the interior bucket of lifting under the guiding of described axle, will be described in bucket selectively with described outer barrel and described apparatus for generation of water flow in one of engage.
2, automatic washing machine according to claim 1, wherein, described engagement device comprises:
-the first tooth portion is positioned at the top bottom described barrel;
-the second tooth portion is positioned at the bottom bottom described barrel;
-Di three tooth portions are positioned on the lower surface of described apparatus for generation of water flow, and bucket meshes with the described first tooth portion when descending fully in described;
-Di four tooth portions are positioned on the interior bottom surface of described outer bucket, when bucket rises fully described in and the described second tooth portion mesh.
3, automatic washing machine according to claim 1, wherein, described axle be an output shaft of described motor apparatus, is used as washing shaft and dehydrating shaft simultaneously.
4, automatic washing machine according to claim 1 also has a sliding component, be contained on the outer surface of described axle with reduce as far as possible described axle and described in frictional force when bucket is along described lifting described between the bucket.
5, automatic washing machine according to claim 1 also has a sealing gasket that is trapped among on the outer surface of described axle, and water is missed between described axle and described outer bucket in order to prevent to do washing.
6, as automatic washing machine as described in the claim 2, wherein, the top of described first to fourth tooth portion is circular arc, so that do level and smooth engagement each other.
7, automatic washing machine according to claim 1 also has a clutching operation and determines device, in order to determine will be described in bucket selectively with described outer barrel and described apparatus for generation of water flow in one of the operation that engages whether finish fully.
8, as automatic washing machine as described in the claim 7, wherein, described clutching operation determines that device has:
One checkout gear is in order to detect the rotating speed of described motor apparatus;
One microcomputer, be connected with described checkout gear, described microcomputer adds a predetermined reference voltage on described motor apparatus, reach a predetermined reference speed until the rotating speed of described motor apparatus computing time simultaneously, then the time of calculating was compared with a fiducial time of being scheduled to, judging when being longer than described fiducial time described computing time, be defined as dewatering state, under this state, described apparatus for generation of water flow and described interior bucket have been engaged with each other so that rotate together, and when the time of judging described calculating is shorter than described fiducial time, be defined as the laundry state, under this state, described interior bucket engages with described outer bucket, only makes the apparatus for generation of water flow rotation.
9, as automatic washing machine as described in the claim 7, wherein, described clutching operation determines that device has:
One checkout gear is in order to detect the rotating speed of described motor apparatus;
One microcomputer, be connected with described checkout gear, described microcomputer adds that on described motor apparatus a predetermined reference voltage reaches a predetermined reference speed until the rotating speed of described motor apparatus, reached described reference speed from described motor apparatus, stop to add described reference voltage in described motor apparatus, and stop fully until the rotation of described motor apparatus computing time, then the time of calculating was compared with a fiducial time of being scheduled to, when being longer than described fiducial time in the time of judging described calculating, be defined as dewatering state, under this state, described apparatus for generation of water flow and described interior bucket have been engaged with each other so that rotate together, and judging when being shorter than described fiducial time described computing time, be defined as the laundry state, under this state, described interior bucket has engaged and has only made the apparatus for generation of water flow rotation with described outer bucket.
10, a kind of method of definite automatic washing machine staving clutching operation may further comprise the steps:
When laundry water has reached a predetermined water level, drive a motor, and when described motor being added a predetermined reference voltage, calculate the driving time of described motor;
Whether the rotating speed of judging described motor has reached a reference speed;
When described motor rotary speed has reached reference speed, stop to calculate the driving time of described motor, and stop to add reference voltage in described motor;
The driving time that calculates was compared with a fiducial time, when being longer than described fiducial time in the time of judging described calculating, be defined as dewatering state, under this state, bucket has been engaged with each other so that rotation together in the apparatus for generation of water flow and, and when the time of judging described calculating is shorter than described fiducial time, be defined as the laundry state, under this state, described interior bucket engages with outer bucket, only makes described apparatus for generation of water flow rotation.
11, a kind of method of definite automatic washing machine staving clutching operation may further comprise the steps:
When laundry water has reached a predetermined water level, drive a motor, and described motor is added a predetermined reference voltage;
When the rotating speed of described motor has reached described reference speed, stop to add described reference voltage, and calculate the driving dwell time and stop the rotation fully until described motor in described motor;
The driving dwell time of calculating was compared with a fiducial time of being scheduled to, when being longer than described fiducial time in the time of judging described calculating, be defined as dewatering state, under this state, bucket has been engaged with each other so that rotation together in the apparatus for generation of water flow and, and is judging when being shorter than described fiducial time described computing time, be defined as the laundry state, under this state, described interior bucket engages with outer bucket, only makes described apparatus for generation of water flow rotation.
12, a kind of automatic washing machine comprises:
One outer bucket is in order to the laundry water of packing into;
One movable interior bucket, in order to laundry and dehydration, described in bucket described outside, barrel make concentric movable layout so that lifting, and on its sidewall, have a lot of through holes;
One vigor generating means, buoyancy be corresponding to the water level of bucket outside described by adorn laundry water, and make described buoyancy be added in described in bucket go up so that barrel rising in this;
One, the bottom centre of bucket and interior bucket play the guiding role in described barrel lifting outside rotatably passing;
One motor apparatus, in order to the revolving force that generation is rotated described axle, described motor apparatus is contained in and makes it depart from described axle on the described outer barrel outer bottom;
One transmission device passes to described axle in order to the revolving force with described motor apparatus;
One apparatus for generation of water flow produces flowing of water in order to the revolving force that utilizes described motor apparatus, is contained in the top of described axle;
One engagement device, in order to will be described in according to the position of the interior bucket of lifting under the guiding of described axle barrel selectively with described outside barrel and described water flow apparatus in one of engage.
13, as automatic washing machine as described in the claim 12, wherein, described engagement device comprises:
One first tooth portion is positioned at the top bottom described barrel;
One second tooth portion is positioned at the bottom bottom described barrel;
One the 3rd tooth portion is positioned on the lower surface of apparatus for generation of water flow, and bucket meshes with the first tooth portion when descending fully in described;
One the 4th tooth portion is positioned on the surface, inside of described outer bucket, when bucket rises fully described in and the described second tooth portion mesh.
14, as automatic washing machine as described in the claim 13, wherein, the top of described first to fourth tooth portion is circular arc, so that do level and smooth engagement each other.
15, as automatic washing machine as described in the claim 12, also have a device of determining the bonding operation situation, in order to determine will be described in bucket selectively with described outer barrel and described apparatus for generation of water flow in one of the operation that engages whether finish fully.
16, as automatic washing machine as described in the claim 15, wherein, the device of described definite bonding operation situation has:
One checkout gear is in order to detect the rotating speed of described motor apparatus;
One microcomputer, be connected with described checkout gear, described microcomputer adds a predetermined reference voltage on described device, reach a predetermined reference speed until the rotating speed of described motor apparatus computing time simultaneously, then the time of calculating was compared with a fiducial time of being scheduled to, judging when being longer than described fiducial time described computing time, be defined as dewatering state, under this state, described apparatus for generation of water flow and described in bucket be engaged with each other so that rotation together, and when the time of judging described calculating is shorter than described fiducial time, be defined as the laundry state, under this state, described interior bucket engages with described outer bucket, only makes the apparatus for generation of water flow rotation.
17, as automatic washing machine as described in the claim 15, wherein, described clutching operation determines that device has:
One checkout gear is in order to detect the rotating speed of described motor apparatus;
One microcomputer, be connected with described checkout gear, described microcomputer adds that on described motor apparatus a predetermined reference voltage reaches a predetermined reference speed until the rotating speed of described motor apparatus, reached described reference speed from described motor apparatus, stop to add described reference voltage in described motor apparatus, and stop fully until the rotation of described motor apparatus computing time, then the time of calculating was compared with a fiducial time of being scheduled to, judging when being longer than described fiducial time described computing time, be defined as dewatering state, under this state, described apparatus for generation of water flow and described in bucket be engaged with each other so that rotation together, and judging when being shorter than described fiducial time described computing time, be defined as the laundry state, under this state, described interior bucket engages with described outer bucket, and only makes the apparatus for generation of water flow rotation.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1640/1993 | 1993-02-06 | ||
| KR930001640 | 1993-02-06 | ||
| KR3531/1993 | 1993-03-09 | ||
| KR1019930003531A KR950007850B1 (en) | 1993-03-09 | 1993-03-09 | Washing machine |
| KR7924/1993 | 1993-05-08 | ||
| KR930007924 | 1993-05-08 | ||
| KR1019930016813A KR950006622A (en) | 1993-08-27 | 1993-08-27 | Micom multi-use method |
| KR16813/1993 | 1993-08-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1099440A true CN1099440A (en) | 1995-03-01 |
| CN1072290C CN1072290C (en) | 2001-10-03 |
Family
ID=27482979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94102103A Expired - Fee Related CN1072290C (en) | 1993-02-06 | 1994-02-05 | Automatic washing maching and method for confirmation of clutching operation thereof |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3509912B2 (en) |
| CN (1) | CN1072290C (en) |
| TW (1) | TW235319B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102115969A (en) * | 2011-02-21 | 2011-07-06 | 海尔集团公司 | Method for judging floating state of inner barrel by utilizing power change of motor |
| CN102134798A (en) * | 2011-02-21 | 2011-07-27 | 海尔集团公司 | Method for judging floating status of internal cylinder by utilizing water level frequency value |
| CN102134797A (en) * | 2011-02-21 | 2011-07-27 | 海尔集团公司 | Detection method for determining floating state of inner barrel by using time difference |
| CN102373601A (en) * | 2010-08-23 | 2012-03-14 | 海尔集团公司 | Double-foot pedal type sports washing machine |
| CN103276558A (en) * | 2013-06-02 | 2013-09-04 | 戴文育 | Pneumatic-vacuum combined type washing machine |
| CN104060433A (en) * | 2013-03-20 | 2014-09-24 | 三星电子株式会社 | Fully Automatic Washing Machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112210961A (en) * | 2019-06-24 | 2021-01-12 | 青岛海尔洗衣机有限公司 | Rolling bearing and washing machine inner barrel locking mechanism with same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063517A (en) * | 1991-01-23 | 1992-08-12 | 张宝泰 | Lifting-tub type washing machine |
-
1994
- 1994-01-05 TW TW83100062A patent/TW235319B/zh not_active IP Right Cessation
- 1994-01-25 JP JP00628894A patent/JP3509912B2/en not_active Expired - Fee Related
- 1994-02-05 CN CN94102103A patent/CN1072290C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373601A (en) * | 2010-08-23 | 2012-03-14 | 海尔集团公司 | Double-foot pedal type sports washing machine |
| CN102373601B (en) * | 2010-08-23 | 2015-11-25 | 海尔集团公司 | A kind of Double-foot pedal type sports washing machine |
| CN102115969A (en) * | 2011-02-21 | 2011-07-06 | 海尔集团公司 | Method for judging floating state of inner barrel by utilizing power change of motor |
| CN102134798A (en) * | 2011-02-21 | 2011-07-27 | 海尔集团公司 | Method for judging floating status of internal cylinder by utilizing water level frequency value |
| CN102134797A (en) * | 2011-02-21 | 2011-07-27 | 海尔集团公司 | Detection method for determining floating state of inner barrel by using time difference |
| CN102134798B (en) * | 2011-02-21 | 2015-12-16 | 海尔集团公司 | A kind of method utilizing stagefrequency value to judge interior bucket floating state |
| CN102134797B (en) * | 2011-02-21 | 2016-01-27 | 海尔集团公司 | A kind of detection method utilizing the time difference to judge interior bucket floating state |
| CN102115969B (en) * | 2011-02-21 | 2016-03-02 | 海尔集团公司 | A kind of power of motor that utilizes changes the method judging interior bucket floating state |
| CN104060433A (en) * | 2013-03-20 | 2014-09-24 | 三星电子株式会社 | Fully Automatic Washing Machine |
| CN103276558A (en) * | 2013-06-02 | 2013-09-04 | 戴文育 | Pneumatic-vacuum combined type washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3509912B2 (en) | 2004-03-22 |
| JPH06238085A (en) | 1994-08-30 |
| CN1072290C (en) | 2001-10-03 |
| TW235319B (en) | 1994-12-01 |
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