CN1084407C

CN1084407C - Washing method of washing machine

Info

Publication number: CN1084407C
Application number: CN98101735A
Authority: CN
Inventors: 权五勋
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 1997-04-29
Filing date: 1998-04-27
Publication date: 2002-05-08
Anticipated expiration: 2018-04-27
Also published as: KR19980078503A; KR100239358B1; CN1197865A; JPH10314487A; JP2927774B2

Abstract

To improve rinsing performance in the washing and also to shorten a water supply and discharge time for rinsing by changing the rotary speed of an inner tank by means of multiple stages while infecting rinsing water to the washing so as to execute rinsing and variously changing the dehydrating route of a detergent refuse and rinsing water. A set quantity of washing water is supplied after the washing and a detergent are thrown-in to the inner tank 2 and, after that, a pulsator 4 is rotated by a driving motor 5 so as to execute washing. After washing, washing water is drained and also dehydrating is executed in order to discharge the detergent refuse and washing water left in the washing. Then, a set quantity of rinsing water is supplied to the inner tank 2 so as to execute a rinsing operation, rinsing water is drained after rinsing and, then, dehydrating is executed in order to discharge the detergent refuse and rinsing water left in the washing in a same way. Transmissive rinsing for executing rinsing by adjusting the rotary speed of the inner tank 2 by multiple stages while injecting rinsing water to the washing is executed and, after that, dehydrating operation is executed so as to dehydrate rinsing water.

Description

The washing methods of washing machine

The present invention relates to washing machine, relate in particular to the washing methods that can improve substrate rinsing characteristic and reduce whole washing timing cycle.

As shown in Figure 1, general washing machine comprises outer bucket 1, interior bucket 2, water supply pipe 3, impeller 4, CD-ROM drive motor 5, clutch 6 and control device (not shown).Outer bucket 1 portion within it supports interior bucket 2; The interior bucket 2 of drum type holds water and carries out the washing of substrate; Bucket 2 in the top of bucket 2 imported slurry in water supply pipe 3 was installed in; Bottom center's part of bucket 2 in impeller 4 is installed in is used to stir water and substrate to carry out the washing operation of substrate; CD-ROM drive motor 5 provides power; When washing or rinsing substrate, the driving power that clutch 6 usefulness CD-ROM drive motors 5 produce rotates impeller 4, rotates impeller 4 and interior bucket 2 during dehydrating operations simultaneously; The predetermined washing step of control device (not shown) control.

With reference to Fig. 2, the conventional washing methods of washing machine comprises: substrate is put into step, and substrate and washing agent are put into bucket 2; The first water supply step provides predetermined amount of water for interior bucket 2; Washing step carries out the washing of substrate by the rotation of impeller 4; First drain step, the surplus water of discharging after the substrate washing; First dehydration, further discharging is retained in residual washing agent and the moisture content in the substrate; The second water supply step provides the rinsing predetermined amount of water for interior bucket 2; The first water-filling rinse step is with the interior bucket 2 rinsing water rinsing substrates that are full of; Second drain step, the discharging washings; Second dehydration is further got rid of contained residual washing agent and moisture content in the substrate; The 3rd water supply step provides the rinsing predetermined amount of water for interior bucket 2; The second water-filling rinse step is with the rinsing water rinsing substrate of bucket 2 in being full of; The 3rd drain step, the discharging rinsing water; The 3rd dewatering also will further be got rid of contained residual washing agent and moisture content in the substrate;

Now be described in further detail the washing methods of conventional washing machine.

Fig. 2 illustrates the washing methods of conventional washing machine.As shown in FIG., at first carry out the first water supply step, under the control of control device (not shown), predetermined amount of water being provided in the bucket 2 by water supply pipe 3; Carry out washing step then, in institute's water requirement has been provided in the bucket 2 time, CD-ROM drive motor 5 is driven in predetermined timing cycle in this step, thereby rotation impeller 4 washs;

Carry out first drain step then, the surplus water behind the washing operation of draining, in CD-ROM drive motor 5 is actuated to rotate in predetermined timing cycle bucket 2 and impeller 4 so that can carry out first dehydration, thereby contained residual washing agent and moisture content in the discharge substrate.

Then, rinsing is provided in the interior bucket 2 with predetermined amount of water for the rinsing substrate carries out the second water supply step.Carry out the first water-filling rinse step rinsing substrate then, bucket is 2 the time in rinsing is poured into predetermined amount of water, and motor 5 is driven certain scheduled time.

Then after the rinsing in the first water-filling rinse step, the second drain step remaining moisture content of draining, CD-ROM drive motor 5 is driven at predetermined timing cycle, with bucket 2 and impeller 4 in rotating, so that carry out second dehydration, contained residual washing agent and moisture content in the substrate of draining.Next step, bucket 2 in the 3rd water supply step rinsing water being packed in the second water-filling rinse step, is carried out rinsing with the rinsing water that provides in the 3rd water supply step and is operated then.

The rinsing water that the 3rd drain step is drained and used in the second water-filling rinse step, then, the 3rd dehydration drain remaining residual washing agent and rinsing water in the substrate, and then finish washing flow.

Simultaneously, in first, second and the 3rd dehydration, the rotation of interior bucket 2 is consistent with the driving of CD-ROM drive motor 5, and according to the centrifugal force of bucket 2 in acting on, the execution dehydrating operations is with residual washing agent contained in the substrate of draining and washings or washings.

That is, finish and CD-ROM drive motor 5 when being driven when drain step, bucket 2 and impeller 4 rotated together in clutch 6 made.

Simultaneously, as shown in Figure 3, interior bucket 2 for rotation, be subjected to the vertical effect of radial effect with the gravity Vz of centrifugal force Vr, at this moment, when the PRM (revolutions per minute) of interior bucket 2 rise make act in the centrifugal force Vr force of gravity Vz of bucket 2 when big, the substrate in the interior bucket 2 adheres to along the inner periphery of interior bucket 2, remaining residual washing agent and moisture see through the substrate that adheres to from interior bucket 2 discharges after washing or the rinsing simultaneously.

At this moment, remaining residual washing agent and moisture after washing or the rinsing when flowing out attached to the substrate on interior bucket 2 inner peripherys, are partly discharged by the inner circumferential portion of interior bucket 2, and this explanation osmotic resistance is less.Here distribution, the kind of substrate and the quality of substrate of bucket 2 interior substrates in osmotic resistance is depended on, so, if it is constant that the RPM of interior bucket 2 keeps constant, the centrifugal force of bucket on 2 makes attached to the substrate on interior bucket 2 inner peripherys and keeps its certain pattern in then acting on, thus determine naturally to wash or rinsing after the dehydration path of remaining residual washing agent and moisture.As a result, on the inner peripheral wall of bucket 2, remaining moisture failed to discharge by interior bucket 2 after washing or the rinsing in some residual washing agent may be retained in.

Therefore, in first, second, third dehydration according to the conventional washing methods of washing machine, rotate interior bucket 2 to carry out dehydration separately with the prearranged signals form of RPM, so, for remaining residual washing agent and moisture after washing or the rinsing are kept a fixing dehydration path, therefore, the substrate of bucket inner circumferential portion in some residual washing agent may be retained in and place, part remains washings and does not discharge by interior bucket, thereby has reduced the rinsing quality of target substrate unfriendly.

Furtherly, in common process,, therefore delayed whole washing timing cycle greatly because the time of the confession of rinse cycle, draining cost is longer than the time of actual laundering, rinsing and dehydration.

Furtherly, the vibration of washing machine that resonance phenomena causes during the dehydration, make in once increasing RPM can reach the dehydration of bucket 2 require the degree difficulty that becomes, therefore RPM is increased to the speed that needs from zero and will spends the regular hour, so delayed whole washing timing cycles on the whole more.

The present invention is exactly the shortcoming that will overcome conventional washing machine washing method, therefore, an object of the present invention is to provide a kind of washing methods of washing machine, can shorten whole washing timing cycle, thereby improves the rinsing characteristic of substrate.

Another object of the present invention provides a kind of washing methods of washing machine, can be controlled at the water consumption of washing during the substrate.

To achieve these goals, comprise according to washing machine washing method provided by the invention: the substrate input step of substrate and washing agent being put into bucket; Predetermined amount of water is transported to the first water supply step of interior bucket; Rotate the washing step of carrying out the substrate washing operation according to impeller; Drain first drain step of remaining washings and residual washing agent after the washing step; Further drain contained residual washing agent and first dehydration of moisture in the substrate; Predetermined amount of water is transported to the second water supply step of interior bucket for the rinsing substrate; The washings rinsing substrate first water-filling rinse step with bucket in pouring into; Drain second drain step of washings; Second dehydration of further getting rid of contained residual washing agent and moisture in the substrate; Spray rinse step when washings are spurted into substrate, interior bucket speed RPM (per minute rotating speed) is adjusted into a plurality of grades comes the rinsing substrate; The 3rd dehydration is got rid of contained residual washing agent and washings in the substrate.

From the detailed description that hereinafter provides, purpose of the present invention and plurality of advantages will be apparent.But, should be appreciated that the detailed description and the instantiation that show the preferred embodiment of the present invention are for purposes of illustration.Because for those skilled in the art, the various changes and modifications in spirit of the present invention and target are obvious.

Can understand the present invention preferably with reference to the accompanying drawings, these accompanying drawings only play the effect rather than the limitation of the invention of explanation, and these accompanying drawings comprise:

Fig. 1 is the front view of explanation conventional laundry apparatus structure;

Fig. 2 is the flow chart of the conventional washing methods of explanation washing machine;

Fig. 3 is that explanation puts on the centrifugal force of washing machine inner tub and the VELOCITY DISTRIBUTION perspective diagram of gravity during interior bucket rotation;

Fig. 4 is the flow chart of explanation according to the washing machine washing method of first embodiment of the invention;

Fig. 5 is the flow chart of explanation according to the washing machine washing method of second embodiment of the invention;

Fig. 6 is the flow chart of explanation according to the washing machine washing method of third embodiment of the invention;

Fig. 7 is the flow chart of explanation according to the washing machine washing method of fourth embodiment of the invention;

With reference to the accompanying drawings, according to a preferred embodiment of the invention washing machine washing method now will be described.

As shown in Figure 4, the washing methods of first specific embodiment comprises according to the present invention: substrate is put into step, and substrate and washing agent are put into bucket 2; The first water supply step is input to interior bucket 2 with predetermined amount of water; Washing step is carried out the washing of substrate with the rotation of impeller 4; First drain step is discharged the surplus water after substrate washs; First dehydration is advanced one and is discharged residual washing agent and the moisture that is retained in the substrate; The second water supply step, bucket was used for rinsing in 2 in predetermined amount of water was passed to; The first water-filling rinse step is with the washings rinsing substrate of bucket 2 in injecting; Second drain step is discharged washings; Second dehydration is further discharged residual washing agent and the moisture that is retained in the substrate; Spray rinse step, be adjusted into RPM multistage simultaneously in the substrate so that carry out rinsing in that washings are ejected into; The 3rd dehydration is discharged the residual washing agent be kept in the substrate and the surplus water after moisture and the rinsing.

The injection rinse step comprises: pre-rinsing step, washings are ejected in the substrate of 2 li in interior bucket, along with finishing of second dehydration, bucket 2 rotates under inertia in the CD-ROM drive motor 5 outage backs, discharges with residual washing agent and washings that the centrifugal force on the bucket 2 in acting on will be retained in the substrate; Soak into step, washings are fully soaked into substrate, to dilute the remaining washing agent that is retained in after the pre-rinsing step in the substrate; Auxiliary rinse step, during the washings injection is entered substrate, the PRM of bucket is different from the RPM during the pre-rinsing step in making, so that washings and the residual washing that can soak in soaking into step in the substrate be discharged by the dehydration passage, this dehydration passage is different with the dehydration passage of pre-rinsing step.

Sequence arrangement according to washing machine washing method of the present invention now will be described:

As shown in Figure 4, identical before second dehydration in washing machine washing step according to the present invention and the above-mentioned common process, therefore the descriptions thereof are omitted.

After finishing second dehydration, carry out pre-rinsing step, wherein, although turn-offed the power supply of CD-ROM drive motor 5, and in certain hour bucket 2 rotations in inertia can be kept in the cycle, so that make washings be enough to be ejected into substrate, thereby the washing agent that will be retained in the substrate is discharged into the outside from interior bucket 2.

At this moment, in the centrifugal force ratio of bucket on 2 acts in acting on the bucket 2 gravity big, therefore according to action of centrifugal force, the washings that are ejected on the substrate add that the residual washing agent that is retained in the substrate is enough to the infiltrate substrate, in certain timing cycle, continuously carry out so pre-rinsing step, till RPM reduction gradually, centrifugal force and the gravitational equilibrium of interior bucket 2.

Then, after pre-rinsing step, still to be retained in the residual washing agent in the substrate in order from interior bucket 2, draining, to carry out the infiltration program, washings are fully soaked into in the substrate.

In soaking into step, As time goes on, the rinsing water yield of outer jet reduces gradually, and acts on the centrifugal force and the gravitational equilibrium of interior bucket 2, so stop dehydration, the substitute is washings and flows down along substrate, thereby fully soak into substrate.

Then, constantly in the substrate spray rinse water, the RPM of interior bucket 2 little by little rises, when the centrifugal force force of gravity relevant with interior bucket 2 is big till, so carry out auxiliary rinse step.

At this moment, RPM during the speed RPM of the interior bucket of setting 2 and the rinsing step in advance is different, this is because will decide the residual washing agent that discharging and the vent pathway of washings according to the speed RPM of interior bucket 2, so that the vent pathway of residual washing agent and washings can be set at different with vent pathway in the pre-rinsing step, even thereby the residual washing agent that keeps after pre-rinsing step also is discharged into the outside, improves the rinsing characteristic of substrate thus.

The RPM speed of the interior bucket 2 of suggestion during auxiliary rinse step also will be set lowlyer than the RPM during the pre-rinsing step, to prevent to produce noise.

Then above-mentioned steps stops to supply with washings, and the speed RPM of interior bucket 2 rises, and the washings that are retained in the substrate in order to drain are fully carried out the 3rd dehydration, finish whole washing steps thus.

Here, in auxiliary rinse step in bucket 2 be under certain RPM speed, at a time, the RPM speed of interior bucket 2 can rise to the RPM value of needs.

As specifying among Fig. 5, with reference to second embodiment of the invention, on water supply pipe 3, provide pressure sensor or water flow sensing unit, the output in reading during the water supply step in the bucket 2 is so that improve the rinsing characteristic of substrate.Therefore, when in predetermined timing cycle, not supplying with predetermined amount of water,, only carry out the water-filling rinse step and do not carry out the injection rinse step as in common process.

Fig. 6 illustrates the third embodiment of the present invention.As shown in FIG., in substrate input step period detecting substrate amount, to improve the rinsing characteristic of substrate; That is,, before spraying rinse step, carry out the water-filling rinse step,, after the injection rinse step, carry out the water-filling rinse step when substrate input quantity ratio sets value after a little while when substrate input quantity ratio sets value for a long time.

In the specifying of as shown in Figure 7 fourth embodiment of the invention, can carry out continuously and spray rinse step more than twice, wash substrate dirty especially or that require degree of depth rinsing, thereby improve the rinsing characteristic of substrate.

According to a fifth embodiment of the invention, the sensor that resembles optical pickocff and so on places the water discharge outlet (not shown), measure the dirt of draining, spray rinse step thereby carry out, dirt in washings reduces the slurry amount till being discharged from and reaching predetermine level thus during spraying rinse step.

As mentioned above, according to the washing machine washing method of preferred embodiment provided by the invention, in washings being sprayed into the target substrate in, be the speed conversion of interior bucket 2 multistage, thereby distinguish the emission path of residual washing agent and washings, and improve the rinsing characteristic of substrate.

Reduce the step of water supply and draining according to the washing machine washing method of preferred embodiment provided by the invention, thereby effectively reduce the washing timing cycle of whole substrate.

Furtherly, washing machine washing method according to preferred embodiment provided by the invention, because bucket 2 has been under the rotary state in during rinse step, the RPM speed of bucket 2 is possible in increasing in one step, reduces whole washing timing cycle thus greatly.

Furtherly, washing machine washing method according to preferred embodiment provided by the invention, carry out the injection rinse step according to the dirt restriction of measuring washings and reach the dirt grade of permission, thereby reduce the water consumption that is used to wash substrate up to being discharged to outside washings.

Because the present invention can implement under the prerequisite that does not break away from its connotation in a variety of forms, is to be understood that the foregoing description is not considered as being limited by the foregoing description, unless stipulated in addition.And explain fully in spirit of the present invention that the present invention should clearly represent in as accessory claim and the target zone, therefore, all changes and improvement in claim model of the present invention is raised interior or equivalent therewith category are included among claim.

Claims

1. the washing methods of washing machine comprises:

-substrate input step is put into bucket to substrate and washing agent;

-the first water supply step carries predetermined amount of water for interior bucket;

-washing step carries out the washing of substrate according to the rotation of impeller;

-the first drain step, remaining washings and residual washing agent behind the discharging washing step;

-the first dehydration is further got rid of residual washing agent and the moisture that is retained in the substrate;

-the second water supply step carries predetermined amount of water to be used for the rinsing substrate for interior bucket;

-the first water-filling rinse step is with the washings rinsing substrate that is full of in the interior bucket;

-the second drain step, the discharging washings;

-the second dehydration is further got rid of residual washing agent and the moisture that is retained in the substrate;

-spray rinse step, when the washings injection is entered substrate, be adjusted to multistage mode by the speed of rotation and come the rinsing substrate interior bucket;

-the three dehydration, discharging is retained in washings and the residual washing agent in the substrate;

2. the washing methods of claim 1, wherein spray rinse step and comprise:

-pre-rinsing step, in the substrate in washings are ejected in the bucket, when second rinse step is finished, after CD-ROM drive motor outage, interior bucket rotates along with inertia, and discharges washings and the residual washing agent that is retained in the substrate with the centrifugal force of bucket in putting on;

-soak into step, washings are soaked into in the substrate fully, so that be diluted in the washing agent that also is retained in after the pre-rinsing step in the substrate;

-auxiliary rinse step, under the interior bucket RPM speed situation different, washings are ejected in the substrate with RPM in the pre-rinsing step, so that the residual washing agent that immerses the washings in the substrate and also be retained in the substrate after soaking into step is discharged by the dehydration path, this dehydration path is different with the dehydration path in the pre-rinsing step.

3. the washing methods of claim 2 is wherein low at the RPM of interior bucket RPM speed ratio in pre-rinsing step during the auxiliary rinse step.

4. the washing methods of claim 1, wherein during the substrate input step, when substrate than its predetermined value for a long time the water-filling rinse step carry out before spraying rinse step, when substrate than its predetermined value after a little while, the water-filling rinse step is execution after spraying rinse step.

5. the washing methods of claim 1, wherein during the first water supply step, in predetermined reference in the time, when not being provided to predetermined slurry amount, according to the readout and the water supply time of the slurry amount in the bucket in being provided to, carry out the water-filling rinse step and do not carry out the injection rinse step;

6. the washing methods of claim 1 wherein sprays rinse step and carries out more than twice continuously.

7. the washing methods of claim 1 is till wherein spraying rinse step carries out dirt in the washings that discharged always during spraying rinse step measured value and reaching its predetermined limits.