CN1087797C - Washing control method of washing machine - Google Patents

Abstract

A washing control method for a washing machine, comprising: a washing step of performing a washing process; a washing time control step of detecting the conductivity of washing water changed during the washing process to control the washing time; and a step of performing a rinsing process after the washing process is completed rinsing step; and the step of controlling the number of rinsing times by detecting the conductivity of the washing water changed during the rinsing process to control the number of rinsing times. Optimum washing time and rinsing times are used for washing, so washing water can be saved and washing degree can be improved.

Description

The control method of washing of washing machine

The present invention relates to utilize the control method of washing of the washing machine of conductivity sensor, be particularly related to injected volume and the contamination degree whether use washing agent, washing agent by detecting, the control method of washing of the washing machine that washs with best wash time and washing times.

In general, washing machine as shown in Figure 1, the hinged loam cake 3 of a side can be arranged on the top of body 1 with opening and closing.The columnar drench pit 7 that can wash, dewater the washings that drops into is arranged in the described body 1 rotationally.Keep certain intervals, support the columnar sink 9 of described drench pit 7 to be arranged on the outer periphery of described drench pit 7 with described drench pit 7.

Water-supply valve 15 is arranged on the upper rear portion of described body 1, and the washings that hose 11 is supplied pass through water hose 13, inject in described sink 9.Draining valve 19 is arranged on the bottom of a side of described body 1, so that by scupper hose 17 washings in the described sink 9 are arranged to the outside.

The motor 21 of forward and reverse rotation be arranged on described sink 9 below so that with the washing of the washings in the described drench pit 7, dehydration.Below described motor 21, the revolving force of motor 21 to the belt 25 that decelerator 23 transmits, is connected on the belt pulley 22,24 on the axle that is installed on described motor 21 and decelerator 23.

Be provided with impeller 27 in the inside of described drench pit 7, the driving force of described motor 21 is passed on the described impeller 27 by belt 25 and decelerator 23, described impeller 27 is reversed on one side make washings form current on one side, wash the washings in the described drench pit 7.On the top of described body 1 device for dissolving detergent 29 is installed, described device for dissolving detergent 29 provides antistatic or makes the softener of washings softness etc. in the dissolved powders washing agent.

Existing washing machine with said structure, the user drops into earlier washings to drench pit 7 in, open not shown running switch then, water-supply valve 15 in opened condition after, pass through water hose 13 water filling in sink 9 by the washings of hose 11 supplies.

Washings inject in above-mentioned sink 9, until for detecting the essential lowest water level of input washings amount (can detect the optimum level of water of washings amount), then, to motor 21 power supplies, drive described motor 21 after, again with the dump of motor 21.

At this moment, even cut off the power supply of described motor 21, because the rotation of the inertia of motor 21, impeller 27 is also rotating.The inertia that detects described motor 21 rotates number, thereby detects the washings amount of input.

After detecting the washings amount, that not shown control part has been set according to the bubble amount data decision that detects, with washings amount corresponding washing water level, water filling then is up to the water level that has determined.After water filling finishes, CD-ROM drive motor 21, impeller about 27 reverses the washings that make injection and forms current.

Owing to reverse formed current about described impeller 27,, isolate attached to dirt on the washings and impurity etc. and wash by exerting pressure to washings.

After the laundry operation that utilizes the driving of described motor 21 and implement finishes, open draining valve 19, by scupper hose 17 sewage in the described sink 9 is discharged to the outside, then, open water-supply valve 15, washings are flowed in the sink 9 by hose 11, the impeller about 27 that rotates owing to the driving of motor 21 reverses, after rinsing for several times, by the driving drench pit 7 beginnings rotation at a high speed of motor 21, centrifugal force makes the washings dehydration, and so far whole washing process finishes.

But, because this existing control method of washing just washs in the wash time of having set during washing, so the washing degree of states such as the contamination degree of unclear washing and washing agent, also just can not carry out clean careful washing, this is a problem that exists.

In addition, the residual quantity of existing rinse method and washing agent and contamination degree are irrelevant, come the automatic setting rinsing by sense weight, so, can not rinsing get very totally, this is another problem of existence.

Therefore, the present invention proposes in order to address the above problem, its purpose is to provide a kind of control method of washing of washing machine, this control method of washing is to detect the injected volume that whether uses washing agent, washing agent and the conductivity sensor of the degree of contamination when utilizing washing, wash by best wash time and washing times, so can prevent the waste of washings, and can improve wash degree.

The control method of washing of the washing machine that the present invention relates to achieve these goals, comprises the washing procedure that washs washings; The rinsing process of rinsing washings and the dehydration procedure that washings is dewatered in addition, comprise that also the control driver element is implemented the washing step of washing procedure to behind the suitable washings of the washings supply that drops into; The conductance of the washings that change when detecting described washing procedure, the wash time control step of control wash time; After described washing procedure finishes, the washings that drops into is supplied with suitable washings, the control driver element is implemented the rinse step of rinsing process; And when described rinsing process, the conductance of the washings of change detected, the rinsing number of times control step of control rinsing number of times.

Brief description of drawings is as follows:

Fig. 1 is the concise and to the point cutaway view of existing washing machine.

Fig. 2 is the cutaway view that the position is set of the conductivity sensor that the present invention relates to of expression.

Fig. 3 is the controlling party block diagram of the wash mill of the washing machine that relates to of one embodiment of the invention.

Fig. 4 is the detailed circuit diagram of the wash mill of the washing machine that relates to of one embodiment of the invention.

Fig. 5 A to Fig. 5 E is the flow chart of the washing control sequence of operation of the washing machine that the present invention relates to of expression.

Fig. 6 is the skeleton diagram of the washing control sequence of operation of the washing machine that the present invention relates to shown in presentation graphs 5A to Fig. 5 E.

With reference to the accompanying drawings, describe one embodiment of the invention in detail.

Fig. 2 is the cutaway view that the position is set of the conductivity sensor that the present invention relates to of expression, and the part identical with existing washing machine structure represented with same title and prosign, with omission repeat specification.

As shown in Figure 2, be provided with the conductivity sensor 75 of detection in washing and the washings conductance that changes during rinsing process in the bottom of sink 9, described conductivity sensor 75 is the sensors that detect the ionic weight that is contained in the water, so adopt two designs that the stainless steel electrode plate contacts with water.The flow through content of the ion between described two electrode plate of detection can be learnt contamination degree according to the residual quantity of washing agent according to its detection limit, thereby selects to have the washing methods of best wash time and rinsing number of times etc.

Illustrate that below with reference to Fig. 3 and Fig. 4 control has the as above circuit of the control method of washing of the washing machine of structure.

As shown in Figure 3 and Figure 4, the alternating voltage commonly used that power subsystem 50 input is earlier supplied with by AC power end 100 is transformed into output again behind the DC voltage that drives the necessary regulation of described washing machine.Described power subsystem 50 comprises: will be applied to primary side by the alternating voltage that described AC power end 100 is supplied with, reduce pressure into after the low-voltage of regulation the negative boosting transformer 51 in the secondary side induction; To become the bridge rectifier 52 of the DC voltage of regulation by the ac voltage rectifier of described negative boosting transformer 51 decompressions; Filter be included in by the fluctuation composition in the DC voltage of described bridge rectifier 52 rectifications, an end is connected in parallel on the output of described bridge rectifier 52 and the filter condenser C1 of other end ground connection; Reception is exported the voltage stabilizing element 53 of constant positive voltage 5V by the filtered DC voltage 12V of described filter condenser C1; And filter be included in by the clutter in the positive voltage signal of described voltage stabilizing element 53 outputs, an end is connected in parallel on the output of described voltage stabilizing element 53 and the capacitor C2 of opposite side ground connection.

In order to import the desirable wash conditions of user (washing kind, wash time, to water washing etc.), running operating unit 55 is provided with a plurality of function keys on the assigned position of described loam cake 3.

Control module 60 is microcomputers, and described microcomputer is accepted the DC voltage by described power subsystem 50 supplies, with described washing machine initialization, according to the overall work of being controlled washing machine by the running command signal of described running operating unit 55 inputs.Described control module 60 records the contamination degree according to the washing agent residual quantity, the washing methods of wash time of control the best and rinsing number of times etc. according to the conductance of washing and the washings that change during rinsing process.

Bubble amount detection unit 65 detects the washings amount of throwing in described drench pit 7, and to described control module 60 outputs.Water level detecting unit 70 is level sensors, and whether its detection has injected and the washings amount corresponding washing water of putting in the described drench pit 7 to sink 9, then to described control module 60 outputs.Conductance detecting unit 75 is conductivity sensors, and it detects the conductance of the washings in the sink 9 that changes when washing with rinsing process, then to described control module 60 outputs.

Water-supply valve driver element 80 carries out drive controlling according to the control output of described control module 60 to water-supply valve 15, and the washings by described hose 11 supplies are injected in the sink 9 through water hose 13.Described water-supply valve driver element 80 comprises: phase inverter (INV1), and will be reverse by the control signal that the lead-out terminal 01 of described control module 60 is exported; And TRIAC (TRIAC1), will import to the control utmost point by the reverse control signal of described phase inverter (INV1) by resistance R 1 from described control module 60, be switched on the described water-supply valve 15 of rear drive.

Motor drive unit 85 receives the control signal by described control module 60 outputs, drives and control motor 21, so that carry out the washing and the dehydration of washings.Described motor drive unit 85 comprises: phase inverter (INV2), and will be reverse by the right rotation control signal that the lead-out terminal 02 of described control module 60 is exported; TRIAC (TRIAC2), by resistance R 2 will by described phase inverter (INV2) reverse, from the right rotation control signal of described control module 60 to the input of the control utmost point, and the energising of the alternating voltage of the coil 21a of control supply motor 21, so that described motor 21 is to right rotation; Phase inverter (INV3) will be reverse by the anticlockwise control signal that the lead-out terminal 03 of described control module 60 is exported; Triacs (TRIAC3), to import to the control utmost point by the reverse anticlockwise control signal of described phase inverter (INV3) by resistance R 3 from described control module 60, and the energising of the alternating voltage of the coil 21b of control supply motor 21, so that described motor 21 is to anticlockwise.A main electrode of described TRIAC (TRIAC2, TRIAC3) is connected a side of described AC power end 100, and another main electrode is connected on coil 21a, the 21b of described motor 21.

Draining valve driver element 90 drives draining valve 19 according to the control of described control module 60, so that by scupper hose 17 washings in the described sink 9 are arranged to the outside.Described draining valve driver element 90 comprises: phase inverter (INV4), and will be reverse by the control signal that the lead-out terminal 04 of described control module 60 is exported; Triacs (TRIAC4), by resistance R 8 will by described phase inverter (INV4) reverse, from the control signal of described control module 60 to the input of the control utmost point, after being switched on, drive described draining valve 19.

Display unit 95 shows the wash conditions of importing by described running operating unit 55, and at described washing machine its mistake takes place to show when unusual.

Below the effect of the control method of washing of the washing machine of structure describes to having as above.

Fig. 5 A to Fig. 5 E is the flow chart of the washing control sequence of operation of the washing machine that the present invention relates to of expression.S among Fig. 5 A to Fig. 5 E represents step (Step).

At first connect the power supply of washing machine, the alternating voltage that is provided by AC power end 100 promptly is applied in the primary side of the negative boosting transformer 51 of power subsystem 50.

At this moment, the reduce pressure alternating voltage of the defined that becomes to be fit to circuit working of the alternating voltage that described negative boosting transformer 51 will put on primary side is again to bridge rectifier 52 outputs of secondary side.Described bridge rectifier 52 will be depressurized the DC voltage of the ac voltage rectifier one-tenth regulation of transformer 51 decompressions.

Be contained in by the fluctuation composition in the DC voltage of described bridge rectifier 52 rectifications, C1 filters by filter condenser, output 12V (V _DD) the TRIAC driving voltage, be transformed into constant positive voltage (V by the DC voltage of described filter condenser C1 filtering by voltage stabilizing element 53 and filter condenser C2 _CC: 5V), the driving voltage of the control module 60 of output 5V.

Therefore, step S1 will make the washing machine initialization by the driving voltage of the 5V of described voltage stabilizing element 53 outputs to control module 60 inputs.

Then, the user drops into washings in drench pit 7, by the desirable wash conditions of running operating unit 55 input (washing kind, wash time, to water washing etc.), then opens not shown running switch.Step S2 to water-supply valve driver element 80 output high-level control signal, detects the washings amount necessary washings put into described drench pit 7 in so that inject by lead-out terminal 01 in sink 9.

Described water-supply valve driver element 80 is to the high-level control signal of phase inverter (INV1) input by lead-out terminal 01 output of control module 60, after oppositely becoming the low level control signal, apply by the control utmost point of resistance R 1 again to TRIAC (TRIAC1).

Thus, between the control utmost point of described TRIAC (TRIAC1) and main electrode, produce voltage difference, connect TRIAC (TRIAC1), apply alternating voltage from AC power end 100 to water-supply valve 15, owing to opened described water-supply valve 15, by water hose 13, inject in the sink 9 by washings such as the warm water of hose 11 supply or cold water.

At this moment, step S3 detects by water level detecting unit 70 owing to open water level in the sink 9 that described water-supply valve 15 water fillings rise, and to control module 60 outputs.Described control module 60 is differentiated the bubble amount sensed water level (detecting optimum level of water, weak ' minimum ' water level of the washings amount that drops into) whether the water level that is detected by water level detecting unit 70 arrives prior setting.

According to the differentiation result of described step S3, when the water level that control module 60 is differentiated is not bubble amount sensed water level (during NO), then turn back to step S2, open water-supply valve 15 and continue water filling, repeat the later action of step S2, till arriving bubble amount sensed water level.When water level is bubble amount sensed water level (during YES), because must stop water filling, so in step S4, control module 60 to water-supply valve driver element 80 output low level control signals, is closed water-supply valve 15 by lead-out terminal 01.

After washings arrived bubble amount sensed water level, in step S5, control module 60 was cut off the electricity supply and is closed motor 21 behind motor 21 power supplies and CD-ROM drive motor 21.

Even close described motor 21, because the effect of the revolving force that inertia produced of motor 21, impeller 27 is still rotating.In step S6, when bubble amount detection unit 65 detects the rotation of motors 21 inertia because the rotation number of the impeller that rotation produced 27 of reducer pulley 24, control module 60 will rotate number and compare with the standard rotation number of having set (judging the basic rotation number of the impeller of washing weight), judge the weight of washings with this.

After judging the weight of washings, control module 60 is according to the weight decision washings of washings, enter step S7 then, export high-level control signal by lead-out terminal 01 to water-supply valve driver element 80, open water-supply valve 15, in sink 9, inject washings so that press the water level that is determined.

After described water-supply valve 15 is opened, inject in sink 9 by water hose 13 by washings such as the warm water of hose 11 supply or cold water.At step S8, detect the water level that in sink 9, injects by water level detecting unit 70, differentiate the water level that whether has arrived control module 60 decisions.

According to the differentiation result of described step S8, when not being the decision water level (during NO), turn back to step S7, open water-supply valve 15 and continue to inject washings, and repeat the later action of step S7, when reaching the decision water level, end.When being the decision water level (during YES), because must stop water filling, so control module 60 is closed water-supply valve 15 by lead-out terminal 01 output low level control signal.

After washings arrived the decision water level, in step S9, control module 60 was alternately exported the right rotation of high level or the control signal of anticlockwise to motor drive unit 85 by lead-out terminal 02,03.

Therefore, described motor drive unit 85 will be imported to phase inverter (INV2, INV3) by the high-level control signal that the lead-out terminal 02,03 of control module 60 is exported, after oppositely becoming the low level control signal, apply to the control utmost point of TRIAC (TRIAC2, TRIAC3) by resistance R 2, R3.

Thus, produce voltage difference between the control utmost point of described TRIAC (TRIAC2, TRIAC3) and main electrode, TRIAC (TRIAC2, TRIAC3) is connect is able to right rotation or anticlockwise.

Because the driving force that is produced that turns left and right of described motor 21 is delivered to decelerator 23 by belt 25, reducer pulley 24 begins to rotate, the impeller 27 that is connected with the axle 23a of decelerator 23 finally begins right the reverse, make washings form the current direction washings and exert pressure, carry out the washing procedure that separates attached to the dirt on the washings and impurity etc.

Next, in step S10, the wash time that reverses about the described impeller 27 of control module 60 calculating judged whether to have passed through four minutes, when not through four minutes (during NO), turned back to described step S9, repeated the later action of step S9.(during YES) enters step S11 when having passed through four minutes, and conductance detecting unit 75 detects through the washing agent injected volume after the washing in four minutes with because the conductance A of the washings that the contaminant capacity of washings changes, and exports to control module 60.

Then,, calculate the difference Z1 of the washings conductivity values X of conductance detected value A and initial feedwater,, whether differentiate described conduction rate variance Z1 greater than control module 60 preset standard conduction rate variance Z at step S13 at step S12 _SAs conduction rate variance Z1 overgauge conduction rate variance Z _SThe time (during YES), enter step S14, carry out to set the washing procedure of wash time.

According to the judged result of described step S13, when conducting electricity rate variance Z1 less than standard conductive rate variance Z _SThe time (during NO), enter step S15, carry out washing procedure after adding 3 minutes on the wash time setting.

Whether at step S16, differentiating is that wash time ended last minute.When not being ends (during NO) last minute the time, carry out wash time by washing procedure in the time of conduction rate variance Z1 decision, repeat the action of step S16.When being ends (during YES) last minute the time, enter step S17, conductance detecting unit 75 detects the conductance B of sink 9 washed water that change in the washing procedure of ending last minute the time.

Step S18 calculates the difference Z2 of last minute the conductance detected value B conductance detected value A with through four minutes time of ending, and step S19 judges that described conduction rate variance Z2 is whether greater than by control module 60 preset standard conductance Zs.When conduction rate variance Z2 overgauge conduction rate variance Zs (during YES), enter step S20, append the washing procedure that carries out two minutes, thereafter,, inject and untie at the current of washing process around the washings of knot at step S21, washing procedure finishes.

According to the judged result of step S19, as conduction rate variance Z2 during less than standard conductive rate variance Zs (during NO), do not append and carry out washing procedure, enter described step S21, inject to untie and behind the current of the washings of knot, finish washing procedure at washing process.

Carry out washing procedure in the best wash time that conductance determined of the washings that in by washing procedure, change, thereafter enter step S22, control module 60 is exported high-level control signal by lead-out terminal 04 to draining valve driver element 90, so that the contaminated washings in the sink 9 are discharged.

Described draining valve driver element 90, to be input to phase inverter (INV4) by the high-level control signal that the lead-out terminal 04 of control module 60 is exported, after oppositely becoming the low level control signal, by resistance R 4, the control that is applied to TRIAC (TRIAC4) is extremely gone up.

Thus, produce voltage difference between the control utmost point of described TRIAC (TRIAC4) and the main electrode, connect TRIAC (TRIAC4), alternating voltage is applied on the draining valve 19 from AC power end 100, open described draining valve 19, the contaminated washings in the sink 9 are arranged to the outside by scupper hose 17.

After the draining that carries out in described step S22 finished, in step S23, motor drive unit 85 was by the control of control module 60, and CD-ROM drive motor 21 carries out dehydration at intermittence and dehydration procedure that washings is dewatered off and in the regular hour.Then, enter step S24, control module 60 is exported to water-supply valve driver element 80 by lead-out terminal 01 with high-level control signal, opens water-supply valve 15, so that inject the required washings (washings specifically) of rinsing process.

Connect described water-supply valve 15, inject in the sink 9 by water hose 13 by hose 11 washing water supplied.At step S25, detect the water level that is injected in the sink 9 by water level detecting unit 70, differentiate the water level that whether has arrived by control module 60 decisions.

Judged result according to described step S25, when not being the decision water level (during NO), turn back to described step S24, open water-supply valve 15, repeat the later action of step S24 while continuing to inject washings, when arriving the decision water level till.When being the decision water level (during YES), because of stopping water filling, so control module 60 is closed water-supply valve 15 by lead-out terminal 01 output low level control signal.

After washings arrive the decision water level, in step S26, motor drive unit 85 is alternately imported right rotation or the anticlockwise control signal by the high level of lead-out terminal 02,03 output of control module 60, CD-ROM drive motor 21 right rotations or anticlockwise, about 27 reverses of impeller, make the washings that are injected into form current, carry out rinsing process.

In step S27, the rinsing time of reversing about the described impeller 27 of control module 60 calculating, judge whether to have passed through the setting rinsing time.Set rinsing during the time (during NO) when not arriving, turn back to described step S26, repeat the later action of step S26.When having passed through the setting rinsing during time (during YES), enter step S28, detect when carrying out rinsing process the conductance C of the once washing water that the contaminant capacity according to washing agent injected volume and washings changes by conductance detecting unit 75.

At step S29, utilize one minute time injection to untie at the current of washing process around the washings of knot, enter step S30 then.Control module 60 to draining valve driver element 90 output high-level control signal, is opened draining valve 19 by lead-out terminal 04, so that contaminated washings in the sink 9 are discharged.

After described draining valve 19 was opened, contaminated washings were arranged to the outside by scupper hose 17 in the sink 9.After this draining finishes, in step S31, motor drive unit 85 is according to the control CD-ROM drive motor 21 of control module 60, dewater and dehydration procedure the intermittence of carrying out washings is dewatered off and in certain hour, enter step 32 then, control module 60 to water-supply valve driver element 80 output high-level control signal, is opened water-supply valve 15 by lead-out terminal 01, injects the required washings of rinsing process.

After described water-supply valve 15 is opened, inject in the sink 9 by water hose 13 by hose 11 washing water supplied.At step S33, detect the water level that is injected into the washings in the sink 9 by water level detecting unit 70, judge whether to arrive water level by control module 60 decisions.

According to the judged result of step S33, when not reaching the decision water level (during NO), turn back to described step S32, open water-supply valve 15, continue inject washings on one side, repeat the later action of step S32 on one side, till arriving the decision water level.When being the decision water level (during YES), because of ending water filling, so control module 60 is closed water-supply valve 15 by lead-out terminal 01 output low level control signal.

When washings arrive the decision water level, enter step S34, conductance detecting unit 75 detects the conductance D of the second wash water that injects in the rinsing process.Whether the difference Z3 of primary conductive rate detected value C when step S35 calculates rinsing process and the conductance detected value D of secondary running water, step S36 differentiate described conduction rate variance Z3 greater than the setting (Z that is set in advance by control module 60 _a285).

According to the result that step S36 judges, conduction rate variance Z3 is less than setting Z _aThe time (during NO), enter step S37, judge the setting (Z whether described conduction rate variance Z3 sets in advance greater than control module 60 _b145).Conduction rate variance Z3 is greater than setting Z _bThe time (during YES), enter step S38, carry out a rinsing.

According to the judged result of described step S37, conduction rate variance Z3 is less than the definite value Z of institute _bThe time (during NO), enter step S39, whether differentiate described conduction rate variance Z3 less than setting Z _b, conduction rate variance Z3 is greater than the definite value Z of institute _bThe time (during NO), turn back to described step S36, repeat the later action of step S36.

According to the judged result of described step S39, conduction rate variance Z3 is less than the definite value Z of institute _bThe time (during YES), then do not carry out rinsing process, enter step S41.

In addition, according to the judged result of step S36, conduction rate variance Z3 is greater than setting Z _aThe time (during YES), then enter step S40, the rinsing process that once feeds water then, enters described step S41, detects the conductance E of the washings of initial feedwater by conductance detecting unit 75.

In step S42, alternately import by the lead-out terminal 02,03 of control module 60 right rotation or anticlockwise control signal output, high level to motor drive unit 85, CD-ROM drive motor 21 right rotations or anticlockwise, impeller about 27 reverses the washings that make injection and forms current, carries out rinsing process with this.

In step S43, control module 60 calculates the rinsing time that described impeller about 27 reverses, and judges whether to have passed through the setting rinsing time.Do not set rinsing during the time (during NO) when reaching, turn back to described step S42, repeat the later action of step S42; When arrive setting rinsing during the time (during YES), enter step S44, the washing agent residual quantity when judging rinsing process and according to the rinsing state of the contaminant capacity of washings, the conductance F of four washings by conductance detecting unit 75 change detected then.

At step S45, after the rinsing state when judging rinsing process, calculate the poor Z4 between the conductance detected value F behind the conductance detected value E of three running water and the rinsing process.At step S46, judge that whether described conduction rate variance Z4 is greater than the control module 60 prior setting (Z that set _c35), when conducting electricity rate variance Z4 greater than setting Z _cThe time (during YES), enter step S47, append carry out rinsing process after, inject at step S48 and to untie at the current of washing process around the washings of knot, finish rinsing process.

According to the judged result of step S46, when conducting electricity rate variance Z4 less than the definite value Z of institute _cThe time (during NO), then do not append and carry out rinsing process, enter described step S48, inject and to untie at washing process behind the current of the washings of knot, finish rinsing process.

Fig. 6 is the skeleton diagram of the washing control sequence of operation of the washing machine that relates to of expression the invention described above.

As mentioned above, control method of washing according to the washing machine that the present invention relates to, owing to used the conductivity sensor that whether uses washing agent, washing agent injected volume and the degree of contamination when detecting washing, wash time and rinsing number of times by the best wash, so can prevent the waste of washings and can obtain the good result that improves wash degree.

More than, the present invention has only carried out specific description to the specific embodiment of being put down in writing, and can carry out various deformation and correction according to technological thought scope of the present invention, and this point is self-explantory to those skilled in the art.This distortion and correction also belong to attached patent claim certainly.

Claims (11)

1. A washing control method of a washing machine, comprising a washing method for washing through a washing process of washing laundry, a rinsing process of rinsing laundry, and a dehydration process of dehydrating laundry, and is characterized in that it also includes: injecting and inputting washing After the washing water corresponding to the object, control the driving unit to perform the washing step of the washing process; detect the conductivity of the washing water changed in the washing process to control the washing time control step of the washing time; after the washing process is completed, inject and input washing water corresponding to the laundry, and then controlling the driving unit to perform the rinsing step of the rinsing process; and a step of controlling the number of rinses by detecting the conductivity of the washing water changed in the rinsing process and controlling the number of rinsing times. 2. The washing control method of a washing machine according to claim 1, wherein the washing time control step comprises: after the washing process, according to the conductivity detection value A when four minutes pass and the conductivity value of the initial water supply The difference Z1 of X adjusts the first step of setting the washing time; according to the difference between the conductivity detection value B one minute before the end of the set washing time adjusted in the first step and the conductivity detection value A after four minutes Z2, add the second step of adjusting the washing time. 3. The washing control method of a washing machine according to claim 1, wherein the step of controlling the number of rinsing times comprises: adjusting the third value of the number of rinsing times according to the difference Z3 between the detected conductivity values C and D changed in the rinsing process. steps; and a fourth step of adjusting the number of rinses according to the difference Z4 between the changed conductivity detection values E and F after performing the rinsing process according to the number of rinses adjusted in the third step. 4. The washing control method of the washing machine according to claim 2, characterized in that, if the conductivity difference Z1 is greater than the standard conductivity difference Zs preset by the control unit, the first step is to wash according to the set washing time process. 5. The washing control method of the washing machine according to claim 2, characterized in that, if the conductivity difference Z1 is smaller than the standard conductivity difference Zs, the first step is performed by adding a specified time to the set washing time Washing process. 6. The washing control method of a washing machine according to claim 2, wherein if the conductivity difference Z2 is larger than the standard conductivity difference Zs, the second step is to add a predetermined time to perform the washing process. 7. The washing control method of a washing machine according to claim 2, characterized in that, if the conductivity difference Z2 is smaller than the standard conductivity difference Zs, the second step is to inject the water flow used to untangle the tangled laundry. Thereafter, the washing step is ended. 8 . The washing control method of a washing machine according to claim 3 , wherein, if the conductivity difference Z3 is greater than a predetermined value Z _a , the third step is to perform a rinse with water. 9 . The washing control method of a washing machine according to claim 3 , wherein if the conductivity difference Z3 is greater than a predetermined value Z _b and smaller than a predetermined value Z _a , the third step is to perform one rinse. 10. The washing control method of a washing machine according to claim 3, wherein if the conductivity difference Z4 is greater than a predetermined value _Zc , the fourth step is to perform an additional rinse. 11. The washing control method of the washing machine according to claim 3, characterized in that, if the conductivity difference Z4 is smaller than the predetermined value _Zc , the fourth step is after injecting the water flow for untangling the tangled laundry , to end the washing process.

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