CN102560978A - Washing machine water level automatic control system based on water inlet quantity detection and washing machine water level automatic control method - Google Patents
Washing machine water level automatic control system based on water inlet quantity detection and washing machine water level automatic control method Download PDFInfo
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Abstract
The invention provides a washing machine water level automatic control system based on water inlet quantity detection and a washing machine water level automatic control method. The washing machine water level automatic control system based on water inlet quantity detection comprises a control module, a water level detection module and a water inlet quantity detection module. The control module is used for automatically controlling water level of the washing machine, a water level sensor is used for detecting water level conditions in real time to obtain corresponding water level variable quantity and sending the variable quantity to the control module, and a flow sensor is used for detecting water inlet flow at a water inlet pipe in real time, obtaining water inlet quantity by summing water inlet flow, and sending the water inlet quantity to the control module. The control module comprises a comparison unit which is used for comparing water level variable quantity of an empty cylinder with loading water level variable quantity of the cylinder loaded with clothes, and water adding is not stopped until the loading water level variable quantity is equal to the water level variable quantity of the empty cylinder. Water level can be precisely controlled by the control module, water adding is automatically stopped when clothes are covered by water, and washing effectiveness and high control precision can be achieved.
Description
Technical field
The present invention relates to a kind of washing machine water level auto control system, relate in particular to a kind of washing machine water level auto control system and method thereof that detects based on inflow.
Background technology
When adopting the laundry washer thing, after water soaked into clothing, water level did not have clothing to get final product; Because washing machine is to utilize friction between clothing and washing machine drum, locker room, clothing and the water with the clothing wash clean, and is many if water is let slip; Between the clothing not compact and cause the friction reduce, its clean result is bad on the contrary, otherwise; If water level did not have clothing, clothing does not fully contact with water, causes the situation such as dry friction of clothing; Clean result is not good especially, also can cause the damage of clothing.
At present, the part washing machine requires controller to carry out fuzzy discrimination to the weight and the material of clothing; Fuzzy detection method realizes following basically: on 2 two silicon controlled output points that are connected on control motor forward and backward respectively, also be each end points of motor forward and backward winding.After MCU broke off the forward and backward controllable silicon, motor also can rotate because of inertia, different according to bucket clothing amount and material, and the inertia size is also different, and showing is exactly that the number of turns of rotating is different, and this information is read by MCU, analyzes judgement.Though this method can realize control; But the poor effect of control; A lot of situation all can be judged by accident, like the difference of different materials and the error of weight judgement, owing to judge the restriction of precision and control accuracy; This method can not realize the design original intention of ' water level did not have clothing to get final product, and reached optimum washing state '.
Summary of the invention
Technical problem to be solved by this invention is need provide a kind of can there be not clothing promptly to stop into water at water level, reaches the washing machine water level auto control system of optimum clean result.
To this, the present invention provides a kind of washing machine water level auto control system that detects based on inflow, comprising:
Control module is used to realize the automatic control of washing machine water level;
The water level detecting module adopts the real-time sensed water level state of level sensor, obtains corresponding water level variable, and water level variable is sent to control module;
The inflow detection module adopts flow sensor to detect the flow of inlet water at water inlet pipe place in real time, draws inflow and is sent to control module through flow of inlet water is added up;
Wherein, said control module comprises comparing unit, and the loading water level variable after said comparing unit is used for comparison empty tube water level variable and loads clothing equals empty tube water level variable up to loading water level variable, then stops into water.
The present invention can preestablish the set time of a detection for the detection of water level and inflow; Promptly in the set time sensed water level variable quantity with the water inlet variable quantity; Just can learn that through the water inlet variable quantity and the ratio of water level variable washing drum average cross-section corresponding in this time period is long-pending; If washing drum is columniform, then its cross-sectional area is a fixed numeric values; If washing drum is not columniform, in the set time, the average cross-section of empty tube is long-pending, water level variable and water inlet variable quantity are inevitable also be one to one; Therefore; In some time periods, can be long-pending through the average cross-section of flow sensor and level sensor calculating clearancen tube, otherwise; Long-pending and water inlet variable quantity also can be known its corresponding water level variable by inference through the average cross-section of empty tube in some time periods.
The said set time can be set according to actual needs, is used for water level variable and water inlet variable quantity in the more identical time period, and the present invention is preferably 10 seconds, and such time set is all very accurate with the detection of water inlet variable quantity to water level variable.
The water level variable height that promptly water level rises in the set time that said water position status is corresponding; Adopt flow sensor to detect the flow of inlet water at water inlet pipe place in real time, said flow sensor can be arranged on the water intake valve of washing machine place, through the accumulation of the flow of inlet water in the set time is drawn the water inlet variable quantity in this time period and is sent to control module; Said control module is used to realize the automatic control of washing machine water level, and detailed control procedure is as described below.
Said empty tube water level variable is under the empty tube shape attitude, the delta data of water level; Said loading water level variable is that washing drum has loaded under the state of clothing the delta data of water level; Under the identical condition of inflow, if water does not also override clothing fully, so, clothing can produce draining in the process that is capped, and the water level rate of climb of the rate of climb that will certainly cause water level during than empty tube is fast; That is to say; Clothing is when just being covered by water fully; Load water level variable and will change into greater than the relation of empty tube water level variable and load water level variable and equal empty tube water level variable, therefore, as long as relatively more empty tube water level variable of the comparing unit of control module and the loading water level variable of loading behind the clothing; Can know promptly whether clothing is awash fully; When the loading water level variable equals empty water level variable, explain that then clothing is covered fully, stops into water.
When not having clothing in the washing machine; Be that washing drum is under the empty tube shape attitude; If inflow is
in the set time; Corresponding washing machine machine barrel average cross-section is long-pending for
; Water level variable is
; Inflow simultaneously also is the volume of water into, and then the water inlet variable quantity of empty tube and the relation of washing machine level change are:
.
That is to say; Under the empty tube shape attitude; No matter washing drum is that cylinder still is other shapes, under some heights of water level, the data of being somebody's turn to do
are the item that immobilizes; The variable quantity of then intaking is directly proportional with water level variable, and is fixed value.
When in the washing machine clothing being arranged; Suppose in the set time; Inflow still is
, and the clothing volume is
; Under the situation that clothing is not also covered by water fully; Awash clothing volume is
; Not awash clothing volume does; I.e.
; Wherein,
also is the displacement of volume of clothing; At this moment; Water level variable is expressed as
, relation below then existing:
.
Relation formula under top two different conditions can be found out;
is fixed value; The washing machine of different size is just relevant with the size of washing drum;
is relevant with clothing volume and inflow; And when water does not cover clothing fully; Inflow is certain,
necessarily greater than
.
Because whole inflow detects and water level detecting; Detect in real time by control module through sensor; Control module only needs to judge; Whether SEA LEVEL VARIATION
is consistent with
; Can be judged as water level when consistent and reach and cover clothing fully, this moment, clean result was best.
Compared with prior art, the present invention is directed to the deficiency of the fuzzy detection method of present washing machine water level, can reach the accurate judgement of water level; Avoided the drawback of actual detected complicated circuit in the prior art; Through add flow sensor at the water intake valve of washing machine place, control module detects the water inlet variable quantity of washing machine, judges water level through control module and when has not just had clothing; Realize the automatic control of washing machine inflow water level; Control precisely makes the water level of washing machine and clothing state relation reach optimum, realizes good clean result.
More concrete, the invention has the advantages that can the application controls module accurately control height of water level, control water level height and clothing reach good coupling, realize better laundry effect, this method algorithm is simple, is convenient to actual realization; And, compare with the fuzzy control washing machine water level of prior art, introduce flow sensor, but saved the controllable silicon feedback circuit, simplified program, improved control accuracy.
Preferably, said control module adopts MCU to realize the automatic control to the washing machine water level.
The present invention further adopts technique scheme; Its advantage is; Detect the inflow that adds entry in the washing machine through flow sensor, detect the variation of washing machine water level in real time, adopt MCU to calculate the relation of water level variable and water inlet variable quantity through level sensor; Judge when water level had not just had clothing, to realize accurate control to water level and clothing relation.
Preferably, said inflow detection module adopts the single-chip microcomputer flow of inlet water that adds up, and obtains inflow and is sent to control module.
Wherein, said flow of inlet water is real-time detected water inlet data, through the real time data in the set time is added up, just can obtain the inflow that amounts in this time period.
The present invention further adopts technique scheme, and its advantage is, has introduced flow sensor; And, can detect water yield injection volume actual in the washing machine, the variable quantity of promptly intaking through itself and the cooperating of single-chip microcomputer; Adopt the real-time change amount of level sensor check water level, if after clothing is covered by water fully, loading water level variable is identical with empty bucket water level variable; So just represent that water level covers clothing fully, stop into water.
Foregoing description check based on flow of inlet water and judge in the washing machine inflow process; The right height state of water inlet water level; Realizing that water level has just covered the purpose of clothing, the present invention also provides a kind of method of the washing machine water level auto control system that detects based on inflow, comprises the steps:
Empty tube SEA LEVEL VARIATION detects step; Under the empty tube shape attitude; Adopt flow sensor to detect the water inlet variable quantity in real time; Adopt the real-time sensed water level state of level sensor, obtain the empty tube water level variable in the set time, with its empty tube water level variable as the SEA LEVEL VARIATION standard volume under the different heights of water level;
The loading SEA LEVEL VARIATION detects step, adopts the loading water level amount after flow sensor detects the loading clothing in real time, and adopts the loading water position status after level sensor detects the loading clothing in real time, obtains the loading water level variable in the set time;
Whether determining step relatively loads water level variable greater than the SEA LEVEL VARIATION standard value, up to not, then stops into water.
This method through water inlet variable quantity amount, load water level variable and an empty tube water level variable is judged the relation of washing machine middle water level and clothing, and then reach water level and do not have clothing to get final product, reach the effect of optimum washing state, this method simple possible.
The invention has the advantages that, introduced flow sensor, can detect the water yield actual in the washing machine and inject volume; Promptly detect actual water inlet variable quantity; And adopt level sensor check water level variable, if after clothing is covered by water fully, loading water level variable is identical with empty tube water level variable; This is just to judge that water level covers clothing fully, stops into water.
Even; Washing drum is not regular cylinder; Detection through level sensor and flow sensor; In the time of also can drawing different height of water level; The needed water inlet variable quantity of water level rising fixed value
; In the practical application, adopt level sensor check height of water level, this
then representes empty bucket water level variable; On the other hand, when the clothing displacement of volume hour, i.e. the negligible amounts of clothing;
is very little at this moment, and so, permissible accuracy also can be higher; Adopt level sensor can realize the accurate detection of water level variable, its error even can be more accurate in 20mm; This error is the error of a certain moment height of water level, and because water level variable is in some time periods, the water level of its termination time deducts the water level of zero-time; That is to say; The error of termination time and zero-time is the same, can balance out, therefore; Normal accurate for judging between right and wrong of water level variable, the present invention also can accurately realize the automatic control to water level for the too small situation of clothing volume.
Preferably, the said set time is 10 seconds.
That is to say, every at a distance from 10 seconds set time, whether just load water level variable more once greater than empty tube water level variable; Up to denying; Explain that then water level has covered clothing fully, stop into water, can realize that water level did not have clothes promptly to stop the into purpose of water just.
Preferably, the water intake mode of said water inlet pipe adopts spray water inlet, rotation water inlet or discontinuity water intake mode.
In the prior art, also there is a problem, promptly when the clothing global density kicks the beam; Clothing may swim on the water surface; Through washing fully, clothing just fully contacts with water, and this situation can cause very big influence to the laundering process of fuzzy Judgment; When clothing fully contacts with water, the more energy and water have been wasted.
To this problem; The water intake mode of water inlet pipe according to the invention adopts spray water inlet, rotation water inlet or discontinuity water intake mode; Through changing the water intake mode of washing machine; The clothing global density guaranteed that in the water inlet process, water contacts with clothing fully, even therefore gently can not influence its automatic control to water level yet.
Preferably, said flow sensor output digital pulse signal exports control module to, detects pulse number through control module, and then judges the size of flow of inlet water.
The present invention further adopts above-mentioned technical characterictic; Its advantage is; Can realize the detection of water inlet variable quantity through flow sensor, the present invention selects a kind of flow sensor of exporting digital pulse signal for use, and control module detects pulse number; Judge the size of flow of inlet water, adopt single-chip microcomputer to carry out accumulation calculating again; Detect washing machine water level inside variable quantity through level sensor, level sensor can be exported different simulation or data signal according to different heights of water level, is detected by control module, calculates the real water level height of this moment; Control module is through to the relation of height of water level and inflow, judge this moment water level with the relation of clothing, reach the accurate automatically of height of water level controlled, realize better clean result.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is that the empty tube of an embodiment of the present invention concerns sketch map with the water inlet variable quantity that loads clothing;
Fig. 3 is the control module workflow diagram of an embodiment of the present invention;
Fig. 4 is the control module workflow diagram of the another kind of embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, more excellent embodiment of the present invention is done further detailed description:
Embodiment 1:
As shown in Figure 1, this example provides a kind of washing machine water level auto control system that detects based on inflow, comprising:
Control module is used to realize the automatic control of washing machine water level;
The water level detecting module adopts the real-time sensed water level state of level sensor, obtains corresponding water level variable, and water level variable is sent to control module;
The inflow detection module adopts flow sensor to detect the flow of inlet water at water inlet pipe place in real time, draws inflow and is sent to control module through flow of inlet water is added up;
Wherein, said control module comprises comparing unit, and the loading water level variable after said comparing unit is used for comparison empty tube water level variable and loads clothing equals empty tube water level variable up to loading water level variable, then stops into water.
This example can preestablish the set time of a detection for the detection of water level and inflow; Promptly in the set time sensed water level variable quantity with the water inlet variable quantity; Just can learn that through the water inlet variable quantity and the ratio of water level variable washing drum average cross-section corresponding in this time period is long-pending; If washing drum is columniform, then its cross-sectional area is a fixed numeric values; If washing drum is not columniform, in the set time, the average cross-section of empty tube is long-pending, water level variable and water inlet variable quantity are inevitable also be one to one; Therefore; In some time periods, can be long-pending through the average cross-section of flow sensor and level sensor calculating clearancen tube, otherwise; Long-pending and water inlet variable quantity also can be known its corresponding water level variable by inference through the average cross-section of empty tube in some time periods.
The said set time can be set according to actual needs; Be used to judge the relation of the water level variable in the identical time period and the variable quantity of intaking; Can learn simultaneously; The average cross-section of washing drum is long-pending in this time period, and this example is preferably 10 seconds, and such time set is all very accurate with the detection of water inlet variable quantity to water level variable.
Said water position status is to having water level variable, the said water level variable height that promptly water level rises in the set time; Adopt flow sensor to detect the flow of inlet water at water inlet pipe place in real time, said flow sensor can be arranged on the water intake valve of washing machine place, draws the water inlet variable quantity in this time period and is sent to control module through the flow of inlet water in the set time is added up; Said control module is used to realize the automatic control of washing machine water level, and detailed control procedure is as described below.
Said empty tube water level variable is under the empty tube shape attitude, the delta data of water level; Said loading water level variable is that washing drum has loaded under the state of clothing the delta data of water level; Under the identical condition of inflow, if water does not also override clothing fully, so, clothing can produce draining in the process that is capped, and produces displacement of volume, and the water level rate of climb of the rate of climb that will certainly cause water level during than empty tube is fast; That is to say; Clothing is when just being covered by water fully; Load water level variable and will change into greater than the relation of empty tube water level variable and load water level variable and equal empty tube water level variable, therefore, as long as relatively more empty tube water level variable of the comparing unit of control module and the loading water level variable of loading behind the clothing; Can know promptly whether clothing is awash fully; When the loading water level variable equals empty water level variable, explain that then clothing is covered fully, stops into water.
When not having clothing in the washing machine; Be that washing drum is under the empty tube shape attitude; If inflow is
in the set time; Corresponding washing machine machine barrel average cross-section is long-pending for
; Water level variable is
; Inflow simultaneously also is the volume of water into, and then the water inlet variable quantity of empty tube and the relation of washing machine level change are:
.
That is to say; Under the empty tube shape attitude; No matter washing drum is that cylinder still is other shapes, under some heights of water level, the data of being somebody's turn to do
are the item that immobilizes; The variable quantity of then intaking is directly proportional with water level variable, and is fixed value.
When in the washing machine clothing being arranged; Suppose in the set time; Inflow still is
, and the clothing volume is
; Under the situation that clothing is not also covered by water fully; Awash clothing volume is
; Not awash clothing volume is
; I.e.
; Wherein,
also is the displacement of volume of clothing; At this moment; Water level variable is expressed as
, relation below then existing:
.
Relation formula under top two different conditions can be found out;
is fixed value; The washing machine of different size is just relevant with the size of washing drum;
is relevant with clothing volume and inflow; And when water does not cover clothing fully;
necessarily greater than
, concrete sketch map is as shown in Figure 2.
Because whole inflow detects and water level detecting; Detect in real time by control module through sensor; Control module only needs to judge; Whether SEA LEVEL VARIATION
is consistent with
; Can be judged as water level when consistent and reach and cover clothing fully, this moment, clean result was best.
Compared with prior art, this example can reach the accurate judgement of water level to the deficiency of the fuzzy detection method of present washing machine water level; Avoided the drawback of actual detected complicated circuit in the prior art; Through add flow sensor at the water intake valve of washing machine place, control module detects the water inlet variable quantity of washing machine, judges water level through control module and when has not just had clothing; Realize the automatic control of washing machine inflow water level; Control precisely makes the water level of washing machine and clothing state relation reach optimum, realizes good clean result.
More concrete, this routine advantage is, can the application controls module accurately control height of water level, and control water level height and clothing reach good coupling, realize better laundry effect, and this method algorithm is simple, is convenient to realize; And, comparing with the fuzzy control washing machine water level of prior art, the present invention introduces flow sensor, has saved the controllable silicon feedback circuit, has simplified program, has improved control accuracy.
Embodiment 2:
Different with embodiment 1 is that this routine said control module adopts MCU to realize the automatic control to the washing machine water level.
This example further adopts technique scheme; Its advantage is; Detect the inflow that adds entry in the washing machine through flow sensor, detect the variation of washing machine water level in real time, adopt MCU to calculate the relation of water level variable and water inlet variable quantity through level sensor; Judge when water level had not just had clothing, to realize accurate control to water level and clothing relation.
Embodiment 3:
Different with embodiment 2 is, this routine said inflow detection module adopts single-chip microcomputer flow of inlet water that adds up, and obtains inflow and is sent to control module.
Wherein, said flow of inlet water is real-time detected water inlet data, through the real time data in the set time is added up, just can obtain the inflow that amounts in this time period.
This example further adopts technique scheme, and its advantage is, has introduced flow sensor; And, can detect water yield injection volume actual in the washing machine, the variable quantity of promptly intaking through itself and the cooperating of single-chip microcomputer; Adopt the real-time change amount of level sensor check water level, if after clothing is covered by water fully, loading water level variable is identical with empty bucket water level variable; So just represent that water level covers clothing fully, stop into water.
Embodiment 4:
The foregoing description has been described to check based on flow of inlet water and has been judged in the washing machine inflow process; The right height state of water inlet water level; To realize that water level has just covered the purpose of clothing; This example also provides a kind of method of the washing machine water level auto control system that detects based on inflow, comprises the steps:
Empty tube SEA LEVEL VARIATION detects step; Under the empty tube shape attitude; Adopt flow sensor to detect the water inlet variable quantity in real time; Adopt the real-time sensed water level state of level sensor, obtain the empty tube water level variable in the set time, with its empty tube water level variable as the SEA LEVEL VARIATION standard volume under the different heights of water level;
The loading SEA LEVEL VARIATION detects step, adopts the loading water level amount after flow sensor detects the loading clothing in real time, and adopts the loading water position status after level sensor detects the loading clothing in real time, obtains the loading water level variable in the set time;
Whether determining step relatively loads water level variable greater than the SEA LEVEL VARIATION standard value, up to not, then stops into water.
This method through water inlet variable quantity amount, load water level variable and an empty tube water level variable is judged the relation of washing machine middle water level and clothing, and then reach water level and do not have clothing to get final product, reach the effect of optimum washing state, this method simple possible.
This routine advantage is, has introduced flow sensor, can detect the water yield actual in the washing machine and inject volume; Promptly detect actual water inlet variable quantity, and adopt level sensor check water level variable, if after clothing is covered by water fully; Loading water level variable is identical with empty tube water level variable, and this is just to judge that water level covers clothing fully, stops into water; Wherein, the workflow diagram of control module is as shown in Figure 3.
Even; Washing drum is not regular cylinder; Detection through level sensor and flow sensor; In the time of also can drawing different height of water level; The needed water inlet variable quantity of water level rising fixed value
; In the practical application, adopt level sensor check height of water level, this
then representes empty bucket water level variable; On the other hand, when the clothing displacement of volume hour, i.e. the negligible amounts of clothing;
is very little at this moment, and so, permissible accuracy also can be higher; Adopt level sensor can realize the accurate detection of water level variable, its error even can be more accurate in 20mm; This error is the error of a certain moment height of water level, and because water level variable is in some time periods, the water level of its termination time deducts the water level of zero-time; That is to say; The error of termination time and zero-time is the same, can balance out, therefore; Normal accurate for judging between right and wrong of water level variable, this example also can accurately realize the automatic control to water level for the too small situation of clothing volume.
Embodiment 5:
Different with embodiment 4 is that this routine said set time is 10 seconds.
That is to say, every at a distance from 10 seconds set time, whether just load water level variable more once greater than empty tube water level variable; Up to denying; Explain that then water level has covered clothing fully, stop into water, can realize that water level did not have clothes promptly to stop the into purpose of water just.
Embodiment 6:
Different with embodiment 4 is that the water intake mode of this routine said water inlet pipe adopts spray water inlet, rotation water inlet or discontinuity water intake mode.
In the prior art, also there is a problem, promptly when the clothing global density kicks the beam; Clothing may swim on the water surface; Through washing fully, clothing just fully contacts with water, and this situation can cause very big influence to the laundering process of fuzzy Judgment; When clothing fully contacts with water, the more energy and water have been wasted.
To this problem; The water intake mode of this routine said water inlet pipe adopts spray water inlet, rotation water inlet or discontinuity water intake mode; Through changing the water intake mode of washing machine; The clothing global density guaranteed that in the water inlet process, water contacts with clothing fully, even therefore gently can not influence its automatic control to water level yet.
This example also is applicable to the method for the described washing machine water level auto control system that detects based on inflow of embodiment 5.
Embodiment 7:
Different with embodiment 4 is that this routine said flow sensor output digital pulse signal exports control module to, detects pulse number through control module, and then judges the size of flow of inlet water.
This example further adopts above-mentioned technical characterictic; Its advantage is; Can realize the detection of water inlet variable quantity through flow sensor, this example is selected a kind of flow sensor of exporting digital pulse signal for use, and control module detects pulse number; Judge the size of flow of inlet water, adopt single-chip microcomputer to carry out accumulation calculating again; Detect washing machine water level inside variable quantity through level sensor, level sensor can be exported different simulation or data signal according to different heights of water level, is detected by control module, calculates the real water level height of this moment; Control module is through to the relation of height of water level and inflow, judge this moment water level with the relation of clothing, reach the accurate automatically of height of water level controlled, realize better clean result.
This example also is applicable to the method for the described washing machine water level auto control system that detects based on inflow of embodiment 5.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (7)
1. a washing machine water level auto control system that detects based on inflow is characterized in that, comprising:
Control module is used to realize the automatic control of washing machine water level;
The water level detecting module adopts the real-time sensed water level state of level sensor, obtains corresponding water level variable, and water level variable is sent to control module;
The inflow detection module adopts flow sensor to detect the flow of inlet water at water inlet pipe place in real time, draws inflow and is sent to control module through flow of inlet water is added up;
Wherein, said control module comprises comparing unit, and the loading water level variable after said comparing unit is used for comparison empty tube water level variable and loads clothing equals empty tube water level variable up to loading water level variable, then stops into water.
2. the washing machine water level auto control system that detects based on inflow according to claim 1 is characterized in that, said control module adopts MCU to realize the automatic control to the washing machine water level.
3. the washing machine water level auto control system that detects based on inflow according to claim 1 and 2 is characterized in that, said inflow detection module adopts the single-chip microcomputer flow of inlet water that adds up, and obtains inflow and is sent to control module.
4. a method that adopts the said washing machine water level auto control system that detects based on inflow of claim 1 is characterized in that, comprises the steps:
Empty tube SEA LEVEL VARIATION detects step; Under the empty tube shape attitude; Adopt flow sensor to detect the water inlet variable quantity in real time; Adopt the real-time sensed water level state of level sensor, obtain the empty tube water level variable in the set time, with its empty tube water level variable as the SEA LEVEL VARIATION standard volume under the different heights of water level;
The loading SEA LEVEL VARIATION detects step, adopts the loading water level amount after flow sensor detects the loading clothing in real time, and adopts the loading water position status after level sensor detects the loading clothing in real time, obtains the loading water level variable in the set time;
Whether determining step relatively loads water level variable greater than the SEA LEVEL VARIATION standard value, up to not, then stops into water.
5. the method for the washing machine water level auto control system that detects based on inflow according to claim 4 is characterized in that the said set time is 10 seconds.
6. according to the method for claim 4 or the 5 described washing machine water level auto control systems that detect based on inflow, it is characterized in that the water intake mode of said water inlet pipe adopts spray water inlet, rotation water inlet or discontinuity water intake mode.
7. according to the method for claim 4 or the 5 described washing machine water level auto control systems that detect based on inflow; It is characterized in that; Said flow sensor output digital pulse signal exports control module to, detects pulse number through control module, and then judges the size of flow of inlet water.
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|---|---|---|---|
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040352A (en) * | 2015-06-30 | 2015-11-11 | 无锡小天鹅股份有限公司 | Calculating method and device for water use amount in washing process of washing machine and washing machine |
| CN105155201A (en) * | 2015-06-30 | 2015-12-16 | 无锡小天鹅股份有限公司 | Washing machine and water inflow control method thereof |
| WO2017144020A1 (en) * | 2016-02-26 | 2017-08-31 | 青岛海尔洗衣机有限公司 | Control method for washing machine and washing machine |
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| CN107130389B (en) * | 2016-02-26 | 2020-02-18 | 青岛海尔洗衣机有限公司 | Control method of washing machine and washing machine |
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| CN110541284B (en) * | 2018-05-29 | 2023-02-17 | 青岛海尔洗衣机有限公司 | Method for automatically determining water inlet level of washing machine and washing machine |
| CN110319900A (en) * | 2019-04-26 | 2019-10-11 | 珠海格力电器股份有限公司 | A kind of determination method, apparatus, storage medium and the washing machine of washing machine water consumption |
| CN110319900B (en) * | 2019-04-26 | 2021-09-07 | 珠海格力电器股份有限公司 | Method and device for determining water consumption of washing machine, storage medium and washing machine |
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