CN105088726B - The drying control method of washing machine and washing machine - Google Patents
The drying control method of washing machine and washing machine Download PDFInfo
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- CN105088726B CN105088726B CN201510287915.XA CN201510287915A CN105088726B CN 105088726 B CN105088726 B CN 105088726B CN 201510287915 A CN201510287915 A CN 201510287915A CN 105088726 B CN105088726 B CN 105088726B
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- washing machine
- drying
- temperature
- time point
- preset time
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/30—Drying processes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/08—Humidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/38—Time, e.g. duration
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/28—Electric heating
-
- D06F2204/06—
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
- D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
Abstract
The invention discloses a kind of washing machine and the drying control method of washing machine, comprise the following steps：The drying unit of control washing machine is operated, to be dried to the clothing in the washing machine；Detect the intake air temperature of the drying unit；When the working time of the drying unit reaching i+1 preset time point, the difference between the intake air temperature of i+1 preset time point and the intake air temperature of i-th of preset time point is calculated, to obtain i-th of temperature variation, wherein, i=1,2,3, ..., N, N are positive integer；If i-th of temperature variation is more than or equal to i-th of temperature threshold, judge that the clothes drying in the washing machine is completed.Thus, judged by increasing temperature variation at multiple time points so that whole drying course is repeatedly judged, so as to effectively raise the degree of accuracy that drying judges, is avoided the occurrence of clothing and is crossed baking or dry the problem of not dry, lift the experience of user.
Description
Technical field
The present invention relates to washing technical field of electric appliances, the drying control method of more particularly to a kind of washing machine and execution should
The washing machine of method.
Background technology
The temperature that related drum type washing drying integral machine is directly detected by temperature sensor mostly is dried
Judge, if for example, the temperature that temperature sensor detects is more than preset value, judgement drying is completed.But because user makes
Clothing is different, and the moisture content of each clothing is different, so as to cause temperature determination rate of accuracy simple in correlation technique not high,
Erroneous judgement probability is larger, easily causes clothing and crosses baking or dry the problem of not dry.
In summary, correlation technique needs to improve.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is to propose a kind of drying control method that can be improved drying and judge the washing machine of the degree of accuracy.
It is another object of the present invention to propose a kind of washing machine.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of drying control method of washing machine, including
Following steps：The drying unit of control washing machine is operated, to be dried to the clothing in the washing machine；Described in detection
The intake air temperature of drying unit；When the working time of the drying unit reaching i+1 preset time point, calculating i-th+
Difference between the intake air temperature of 1 preset time point and the intake air temperature of i-th of preset time point, to obtain i-th
Temperature variation, wherein, i=1,2,3 ... ..., N, N are positive integer；If i-th of temperature variation is more than or equal to the
I temperature threshold, then judge that the clothes drying in the washing machine is completed.
The drying control method of the washing machine proposed according to embodiments of the present invention, carried out in the drying unit of control washing machine
After work, the intake air temperature of drying unit is detected, i+1 preset time point is reached in the working time of drying unit
When, the difference between the intake air temperature of i+1 preset time point and the intake air temperature of i-th of preset time point is calculated,
To obtain i-th of temperature variation, if i-th of temperature variation is more than or equal to i-th of temperature threshold, washing machine is judged
Interior clothes drying is completed.Thus, judged by increasing temperature variation at multiple time points so that whole drying course is carried out
Repeatedly judge, so as to effectively raise the degree of accuracy that drying judges, avoid the occurrence of clothing and cross baking or dry the problem of not dry, lifting
The experience of user.
According to one embodiment of present invention, when the working time of the drying unit be in i-th preset time point with
When between i+1 preset time point, judge whether the intake air temperature reaches preset temperature, if it is, described in judging
Clothes drying in washing machine is completed.
According to one embodiment of present invention, the drying control method of the washing machine also includes：Detect the washing machine
The weight of undergarment；The i+1 preset time point and corresponding i-th of temperature are obtained according to the weight of the clothing
Threshold value.
According to one embodiment of present invention, after the completion of the clothes drying in the washing machine is judged, also described in control
Washing machine enters cooling stage.
According to one embodiment of present invention, it is described to wash before the drying unit of the control washing machine is operated
The drying control method of clothing machine also includes：The washing machine is controlled to be dehydrated with preset rotation speed, so that the washing machine underwear
The moisture content of thing is in preset range.
To reach above-mentioned purpose, a kind of washing machine that another aspect of the present invention embodiment proposes, including：Drying unit, institute
Drying unit is stated to be used to dry the clothing in the washing machine；Temperature detector, the temperature detector are used to detect
The intake air temperature of the drying unit；Control device, the control device are used to control the drying unit to be operated, and
When the working time of the drying unit reaching i+1 preset time point, the air inlet of i+1 preset time point is calculated
Difference between the intake air temperature of temperature and i-th of preset time point, to obtain i-th of temperature variation, if described i-th
Individual temperature variation is more than or equal to i-th of temperature threshold, then judges that the clothes drying in the washing machine is completed, wherein, i=
1,2,3 ... ..., N, N are positive integer.
The washing machine proposed according to embodiments of the present invention, control device are operated it in the drying unit of control washing machine
Afterwards, the intake air temperature of drying unit is detected by temperature detector, and i+1 is reached in advance in the working time of drying unit
If during time point, calculate between the intake air temperature of i+1 preset time point and the intake air temperature of i-th of preset time point
Difference, to obtain i-th of temperature variation, if i-th of temperature variation is more than or equal to i-th of temperature threshold, control
Device processed judges that the clothes drying in washing machine is completed.Thus, judged by increasing temperature variation at multiple time points so that
Whole drying course is repeatedly judged, so as to effectively raise the degree of accuracy that drying judges, avoid the occurrence of clothing cross dry or
The problem of not dry is dried, lifts the experience of user.
According to one embodiment of present invention, when the working time of the drying unit be in i-th preset time point with
When between i+1 preset time point, the control device judges whether the intake air temperature in the washing machine reaches default
Temperature, if it is, judging that the clothes drying in the washing machine is completed.
According to one embodiment of present invention, described washing machine also includes：Weight tester, the weight tester are used
In the weight for detecting the washing machine undergarment, wherein, the control device is additionally operable to obtain institute according to the weight of the clothing
State i+1 preset time point and corresponding i-th of temperature threshold.
According to one embodiment of present invention, after the completion of the clothes drying in the washing machine is judged, the control dress
Put and also control the washing machine to enter cooling stage.
According to one embodiment of present invention, before the drying unit of the control washing machine is operated, the control
Device processed is additionally operable to, and controls the washing machine to be dehydrated with preset rotation speed, so that at the moisture content of the washing machine undergarment
In preset range.
Brief description of the drawings
Fig. 1 is the flow chart of the drying control method of washing machine according to embodiments of the present invention；
Fig. 2 is the flow chart of the drying control method of washing machine according to an embodiment of the invention
Fig. 3 is the block diagram of washing machine according to embodiments of the present invention；And
Fig. 4 is the block diagram of washing machine according to an embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings come describe the embodiment of the present invention proposition washing machine and washing machine drying control method, its
In, use in washing machine to clothing in being washed and dried.
Fig. 1 is the flow chart of the drying control method of washing machine according to embodiments of the present invention.As shown in figure 1, the laundry
The drying control method of machine comprises the following steps：
S1：The drying unit of control washing machine is operated, to be dried to the clothing in washing machine.
S2：Detect the intake air temperature of drying unit.
According to the specific example of the present invention, can be detected by being arranged on the temperature sensor of drying unit air inlet
Intake air temperature.Specifically, when drying heating starts, control temperature sensor work is remembered with detecting intake air temperature
Record the working time of drying unit.
S3：When the working time of drying unit reaching i+1 preset time point, i+1 preset time point is calculated
Intake air temperature and i-th of preset time point intake air temperature between difference, to obtain i-th of temperature variation, i.e.,
Variable quantity of the intake air temperature between i-th of preset time point and i+1 preset time point, wherein, i=1,2,
3 ... ..., N, N are positive integer.
That is, in embodiments of the present invention, N+1 preset time point can be set, be designated as t (1), t (2), t
(3) ..., t (i), t (i+1) ..., t (N+1), and N+1 preset time point can be incremented by successively, i.e. t (1)>t(2)>t(3)
>…>t(i)>t(i+1)>…>t(N+1)。
Also, when the working time of drying unit reaching i-th of preset time point t (i), corresponding air inlet can be obtained
Temperature T (i), afterwards as drying course continues, at work between reach i+1 preset time point t (i+1) when, can obtain
Corresponding intake air temperature T (i+1), so, in i+1 preset time point t (i+1), you can calculate i-th of temperature change
△ T (i) are measured, wherein, △ T (i)=T (i+1)-T (i).
In addition, it is necessary to explanation, in one embodiment of the invention, the 1st preset time point is as initial time
Point can be set to zero, i.e., the time point that drying unit is started working.
S4：If i-th of temperature variation is more than or equal to i-th of temperature threshold, judge that the clothing in washing machine dries
Finish into.
Also, if i-th of temperature variation is less than i-th of temperature threshold, then judge clothes drying in washing machine not
Complete, drying unit works on.
That is, can according to intake air temperature in preset time section variable quantity judge drying whether complete, if
Temperature variation meets that preparatory condition, such as △ T (i) are more than or equal to i-th of temperature threshold, then judges that drying is completed, if
Temperature variation is unsatisfactory for preparatory condition, such as △ T (i) are less than i-th of temperature threshold, then judges that drying does not complete.
Further, according to one embodiment of present invention, it is in i-th of preset time when the working time of drying unit
When between point and i+1 preset time point, judge whether intake air temperature reaches preset temperature, if it is, judging laundry
Clothes drying in machine is completed；If it is not, then determine whether drying unit working time whether reach i+1 it is default when
Between point.
That is, when the working time of drying unit not reaching any one in N+1 preset time point, directly
Drying judgement is carried out according to intake air temperature.If intake air temperature reaches preset temperature, judge that drying has been completed；But
It is, because whole drying course is longer, it is possible to produce erroneous judgement, so adding another judgement, i.e. step in drying course
S3-S4, if intake air temperature is not up to preset temperature, judge that the working time of drying unit reaches some preset time
Point, if reached, entered according to variable quantity of the intake air temperature between current preset time point and upper preset time point
Row drying judges.
In addition, it is necessary to explanation, can prestore drying decision table in the control device of washing machine, in decision table is dried
N number of preset time point and corresponding N number of temperature threshold can be listed, wherein, the 1st preset time is not belonging to dry in decision table,
So, when reaching the preset time point listed in drying decision table in the working time of drying unit, judged by inquiring about drying
Table can obtain corresponding temperature threshold, whether be more than or equal to temperature threshold according to temperature variation afterwards, you can judge clothing
Whether thing dries completion.
Specifically, drying decision table can be as shown in table 1 below, and 3 preset time points and corresponding 3 temperature can be listed in table
Threshold value.
Table 1
It was found from upper table 1, the 2nd preset time point is 70min (minute), and corresponding 1st temperature threshold is 5 DEG C (Celsius
Degree)；3rd preset time point is 90min, and corresponding 2nd temperature threshold is 6 DEG C；4th preset time point is 105min,
Corresponding 3rd temperature threshold is 7 DEG C.Thus, exemplified by when the working time of drying unit to be less than or equal to 70min, the 1st
Preset time point can be defaulted as 0min, when the working time of drying unit not reaching 70min, be dried according to intake air temperature
It is dry to judge；When the working time of drying unit reaching 70min, 70min intake air temperature is subtracted to 0min air inlet temperature
Degree, so as to calculate the 1st temperature variation, by the 1st temperature variation compared with 5 DEG C, if the 1st temperature change
Amount is more than or equal to 5 DEG C, then judges that drying is completed.
Thus, the drying control method of the embodiment of the present invention, judged by increasing temperature variation at multiple time points, made
Obtain whole drying course repeatedly to be judged, so as to effectively raise the degree of accuracy that drying judges, avoid the occurrence of clothing and cross baking
Or the problem of not dry is dried, lift the experience of user.
According to one embodiment of present invention, the drying control method of washing machine also includes：Detect washing machine undergarment
Weight；I+1 preset time point and corresponding i-th of temperature threshold are obtained according to the weight of clothing.
It should be noted that the heat and temperature of clothing baking needed in the range of certain moisture content due to constant weight
Degree changing value is can be measured by experiment, it is possible to establishes a form, each clothes weight gear can be listed in table
Required multiple heat times (i.e. multiple preset time points) and corresponding temperature threshold, to enter in the overall drying process
Row repeatedly judges, improves drying and judges the degree of accuracy.
So, after the drying unit of control washing machine is operated, the weight of detection washing machine undergarment, and according to
Drying decision table corresponding to the weight selection of clothing, afterwards, in drying course, often reach the preset time point in a form
Just temperature variation now is calculated, if temperature variation is more than or equal to temperature threshold corresponding to the preset time point, just
Judge clothing drying.If temperature variation is less than temperature threshold corresponding to the preset time point, continue back at normal
Drying judge, judge whether intake air temperature reaches preset temperature, if it is, judge clothing drying, if it is not, then
Next preset time point is reached between at work and carries out temperature variation judgement again.Thus, the drying decision method is in list
Add in one decision condition and repeatedly judge, the precision that drying judges can be effectively improved.
According to the specific example of the present invention, drying unit may include heating tube.Specifically, enter in washing machine and dry
After process, controllable heating tube is operated, to carry out drying heating to clothing.
Further, according to one embodiment of present invention, after the completion of the clothes drying in washing machine is judged, also control
Washing machine enters cooling stage.That is, after drying is completed, controllable drying unit is stopped, and washing machine enters
Cooling stage.
In addition, according to one embodiment of present invention, before the drying unit of control washing machine is operated, washing machine
Drying control method also include：Control washing machine is dehydrated with preset rotation speed, so that at the moisture content of washing machine undergarment
In preset range.
That is, before drying heating starts, control washing machine is first dehydrated with preset rotation speed, with baking needed for guarantee
The moisture content of dry clothing in a stable preset range, can so reduce different water cut clothing bring it is inclined
Difference, improve the precision that drying judges.
As described above, according to Fig. 2 embodiment, the drying control method comprises the following steps：
S101：Control washing machine is dehydrated.
S102：The drying unit of control washing machine is operated, while detects intake air temperature, records the work of drying unit
Make the time.
S103：I=1 is set.
S104：Judge whether intake air temperature reaches preset temperature.
If it is, perform step S108；If it is not, then perform step S105.
S105：Judge whether the working time of drying unit reaches i+1 preset time point.
If it is, perform step S106；If it is not, then perform step S107.
S106：I-th of temperature variation is obtained, judges whether i-th of temperature variation is more than or equal to i-th of temperature threshold
Value.
If it is, perform step S108；If it is not, then perform step S107.
S107：By i plus 1, i.e. i=i+1, return to step S104.
S108：Control washing machine enters cooling stage.
In this way, the step according to Fig. 2, before drying heating starts, first controls washing machine to be carried out with preset rotation speed
Dehydration.After dehydration terminates, automatic drying heating is proceeded by, heating tube is operated, and is carried out normal drying and is judged, be i.e. basis
Intake air temperature and preset temperature are judged, once intake air temperature, which reaches preset temperature, just judges clothing drying, directly
Tap into cooling stage；And another temperature variation is additionally added in drying course to judge, can be first before being judged
Multiple preset time points and corresponding temperature threshold are determined according to the weight of clothing, one is then often reached in drying course
Multiple preset time points, just judge whether temperature variation is more than or equal to corresponding temperature threshold, if it is, judging clothing
Drying, if it is not, then returning in normal drying judgement.
In summary, the drying control method of the washing machine proposed according to embodiments of the present invention, in the baking of control washing machine
After equipment for drying is operated, the intake air temperature of drying unit is detected, it is pre- to reach i+1 in the working time of drying unit
If during time point, calculate between the intake air temperature of i+1 preset time point and the intake air temperature of i-th of preset time point
Difference, to obtain i-th of temperature variation, if i-th of temperature variation is more than or equal to i-th of temperature threshold, sentence
Clothes drying in disconnected washing machine is completed.Thus, judged by increasing temperature variation at multiple time points so that whole drying
Process is repeatedly judged, so as to effectively raise the degree of accuracy that drying judges, is avoided the occurrence of clothing and is crossed and dry or dry what is do not done
Problem, lift the experience of user.
In order to perform the above method, the embodiment of the present invention also proposed a kind of washing machine.
Fig. 3 is the block diagram of washing machine according to embodiments of the present invention.As shown in figure 3, the washing machine includes：Drying
Device 10, temperature detector 20 and control device 30.
Wherein, drying unit 10 is used to dry the clothing in washing machine.Temperature detector 20, which is used to detect, dries
The intake air temperature of device, specifically, when drying heating starts, the temperature controllable detector 20 of control device 30 starts work
Make.According to the specific example of the present invention, temperature detector 20 can be temperature sensor, and temperature detector 20 may be provided at baking
The air inlet of equipment for drying,.
Control device 30 be used for control drying unit 10 to be operated, and drying unit 10 working time reach i-th+
During 1 preset time point, the intake air temperature of i+1 preset time point and the air inlet temperature of i-th of preset time point are calculated
Difference between degree, to obtain i-th of temperature variation, if i-th of temperature variation is more than or equal to i-th of temperature threshold
Value, then judge that the clothes drying in washing machine is completed, wherein, i=1,2,3 ... ..., N, N are positive integer.
That is, in embodiments of the present invention, N+1 preset time point can be set, be designated as t (1), t (2), t
(3) ..., t (i), t (i+1) ..., t (N+1), and N+1 preset time point can be incremented by successively, i.e. t (1)>t(2)>t(3)
>…>t(i)>t(i+1)>…>t(N+1)。
Also, when the working time of drying unit reaching i-th of preset time point t (i), corresponding air inlet can be obtained
Temperature T (i), afterwards as drying course continues, at work between reach i+1 preset time point t (i+1) when, can obtain
Corresponding intake air temperature T (i+1), so, in i+1 preset time point t (i+1), you can calculate i-th of temperature change
△ T (i) are measured, wherein, △ T (i)=T (i+1)-T (i).
In addition, it is necessary to explanation, in one embodiment of the invention, the 1st preset time point is as initial time
Point can be set to zero, i.e., the time point that drying unit 10 is started working.
According to one embodiment of present invention, if i-th of temperature variation is less than i-th of temperature threshold, control dress
The clothes drying put in 30 judgement washing machines does not complete, and drying unit 10 works on.
That is, control device 30 can whether variable quantity judges drying in preset time section according to intake air temperature
Complete, if temperature variation meets that preparatory condition, such as △ T (i) are more than or equal to i-th of temperature threshold, then judge drying
Complete, if temperature variation is unsatisfactory for preparatory condition, such as △ T (i) are less than i-th of temperature threshold, then judge that drying is not complete
Into.
Further, according to one embodiment of present invention, when the working time of drying unit 10, which is in i-th, presets
Between point i+1 preset time point between when, control device 30 judges whether the intake air temperature in washing machine reaches default
Temperature, if it is, judging that the clothes drying in washing machine is completed；If it is not, then when determining whether the work of drying unit
Between whether reach i+1 preset time point.
That is, when the working time of drying unit 10 not reaching any one in N+1 preset time point, control
Device 30 processed directly carries out drying judgement according to intake air temperature.If intake air temperature reaches preset temperature, control device
30 judge that drying has been completed；But because whole drying course is longer, it is possible to produce erroneous judgement, so in drying course
Another judgement is added, i.e., if intake air temperature is not up to preset temperature, when control device 30 judges the work of drying unit
Between reach some preset time point, if reached, control device 30 according to intake air temperature current preset time point with
Variable quantity between upper preset time point carries out drying judgement.
In addition, it is necessary to explanation, can prestore drying decision table in control device 30, can be listed in decision table is dried
N number of preset time point and corresponding N number of temperature threshold, wherein, the 1st preset time is not belonging to dry in decision table, so,
When the working time of drying unit 10 reaches the preset time point listed in drying decision table, control device 30 is dried by inquiring about
Decision table can obtain corresponding temperature threshold, whether be more than or equal to temperature threshold according to temperature variation afterwards, you can sentence
Whether disconnected clothing dries completion.
Thus, the washing machine of the embodiment of the present invention, judged by increasing temperature variation at multiple time points so that whole
Drying course is repeatedly judged, so as to effectively raise the degree of accuracy that drying judges, is avoided the occurrence of clothing and is crossed baking or dry not
The problem of dry, lift the experience of user.
According to one embodiment of present invention, as shown in figure 4, washing machine also includes：Weight tester 40, weight tester
40 weight for detecting washing machine undergarment, wherein, control device 30 is additionally operable to obtain i+1 in advance according to the weight of clothing
If time point and corresponding i-th of temperature threshold.
It should be noted that the heat and temperature of clothing baking needed in the range of certain moisture content due to constant weight
Degree changing value is can be measured by experiment, it is possible to establishes a form, each clothes weight gear can be listed in table
Required multiple heat times (i.e. multiple preset time points) and corresponding temperature threshold, to enter in the overall drying process
Row repeatedly judges, improves drying and judges the degree of accuracy.
So, after control device 30 controls drying unit 10 to be operated, weight tester 40 is detected in washing machine
The weight of clothing, the clothing that control device 30 detects according to weight tester 40 weight selection corresponding to drying decision table,
Afterwards, in drying course, often the preset time point control device 30 in one form of arrival just calculates temperature change now
Amount, if temperature variation is more than or equal to temperature threshold corresponding to the preset time point, just judge clothing drying.If
Temperature variation is less than temperature threshold corresponding to the preset time point, then continues back at normal drying and judge, that is, judge air intake
Whether mouth temperature reaches preset temperature, if it is, clothing drying is judged, if it is not, then being reached between at work next
Individual preset time point carries out temperature variation judgement again.Thus, add in single decision condition and repeatedly judge, can be effective
Improve the precision that drying judges.
According to the specific example of the present invention, drying unit 10 may include heating tube.Specifically, enter in washing machine and dry
After dry process, control device 30 can control heating tube to be operated, to carry out drying heating to clothing.
Further, according to one embodiment of present invention, after the completion of the clothes drying in washing machine is judged, control dress
Put 30 also control washing machines and enter cooling stage.That is, after drying is completed, control device 30 can control drying unit
10 are stopped, and washing machine enters cooling stage.
In addition, according to one embodiment of present invention, before control drying unit 10 is operated, control device 30 is also
For control washing machine to be dehydrated with preset rotation speed, so that the moisture content of washing machine undergarment is in preset range.
That is, before drying heating starts, control device 30 first controls washing machine to be dehydrated with preset rotation speed, with
The moisture content of the clothing of drying can so reduce the clothing of different water cut in a stable preset range needed for ensureing
The deviation brought, improve the precision that drying judges.
As described above, before drying heating starts, control device 30 first controls washing machine to be dehydrated with preset rotation speed.
After dehydration terminates, automatic drying heating is proceeded by, control device 30 controls heating tube to be operated, and control device 30 is carried out
Normal drying judges, i.e., is judged according to intake air temperature and preset temperature, once intake air temperature reaches preset temperature just
Judge clothing drying, be directly entered cooling stage；And another temperature variation is additionally added in drying course to judge,
Control device 30 can determine multiple preset time points and corresponding temperature threshold according to the weight of clothing first before being judged
Value, a multiple preset time point is then often reached in drying course, just judge temperature variation whether more than or equal to pair
The temperature threshold answered, if it is, control device 30 judges clothing drying, if it is not, then control device 30 returns to normally
Drying judge in.
In summary, the washing machine proposed according to embodiments of the present invention, drying unit of the control device in control washing machine
After being operated, the intake air temperature of drying unit is detected by temperature detector, and is arrived in the working time of drying unit
During up to i+1 preset time point, the intake air temperature of i+1 preset time point and entering for i-th preset time point are calculated
Difference between draught temperature, to obtain i-th of temperature variation, if i-th of temperature variation is more than or equal to i-th of temperature
Threshold value is spent, then control device judges that the clothes drying in washing machine is completed.Thus, by increasing temperature change at multiple time points
Amount judges so that whole drying course is repeatedly judged, so as to effectively raise the degree of accuracy that drying judges, is avoided the occurrence of
Clothing is crossed baking or dried the problem of not dry, lifts the experience of user.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of drying control method of washing machine, it is characterised in that comprise the following steps：
The drying unit of control washing machine is operated, to be dried to the clothing in the washing machine；
N+1 preset time point and N number of temperature threshold are determined according to the weight of the washing machine undergarment；
Detect the intake air temperature of the drying unit；
When the working time of the drying unit reaching i+1 preset time point, the i+1 preset time point is calculated
Intake air temperature and i-th of preset time point intake air temperature between difference, to obtain i-th of temperature variation, its
In, i=1,2,3 ... ..., N, N are positive integer；
If i-th of temperature variation is more than or equal to i-th of temperature threshold, the clothing in the washing machine is judged
Thing drying is completed.
2. the drying control method of washing machine as claimed in claim 1, it is characterised in that
When being between i-th of preset time point and i+1 preset time point the working time of the drying unit, judge
Whether the intake air temperature reaches preset temperature, if it is, judging that the clothes drying in the washing machine is completed.
3. the drying control method of washing machine as claimed in claim 1, it is characterised in that also include：
Detect the weight of the washing machine undergarment；And
The i+1 preset time point and corresponding i-th of temperature threshold are obtained according to the weight of the clothing.
4. the drying control method of the washing machine as any one of claim 1-3, it is characterised in that washed described in judgement
After the completion of clothes drying in clothing machine, the washing machine is also controlled to enter cooling stage.
5. the drying control method of washing machine as claimed in claim 1, it is characterised in that controlling the drying of the washing machine
Before device is operated, in addition to：
The washing machine is controlled to be dehydrated with preset rotation speed, so that the moisture content of the washing machine undergarment is in default model
Enclose.
A kind of 6. washing machine, it is characterised in that including：
Drying unit, the drying unit are used to dry the clothing in the washing machine；
Temperature detector, the temperature detector are used for the intake air temperature for detecting the drying unit；
Control device, the control device are used to control the drying unit to be operated, are additionally operable to according in the washing machine
The weight of clothing determines N+1 preset time point and N number of temperature threshold, and reach in the working time of the drying unit i-th+
During 1 preset time point, the intake air temperature of the i+1 preset time point and the air intake of i-th of preset time point are calculated
Difference between mouth temperature, to obtain i-th of temperature variation, if i-th of temperature variation is more than or equal to i-th
The temperature threshold, then judge that the clothes drying in the washing machine is completed, wherein, i=1,2,3 ... ..., N, N are positive integer.
7. washing machine as claimed in claim 6, it is characterised in that
It is described when being between i-th of preset time point and i+1 preset time point the working time of the drying unit
Control device judges whether the intake air temperature in the washing machine reaches preset temperature, if it is, judging the washing machine
Interior clothes drying is completed.
8. washing machine as claimed in claim 6, it is characterised in that also include：
Weight tester, the weight tester are used for the weight for detecting the washing machine undergarment, wherein, the control device
It is additionally operable to obtain the i+1 preset time point and corresponding i-th of temperature threshold according to the weight of the clothing.
9. washing machine as claimed in claim 6, it is characterised in that after the completion of the clothes drying in the washing machine is judged,
The control device also controls the washing machine to enter cooling stage.
10. washing machine as claimed in claim 6, it is characterised in that be operated controlling the drying unit of the washing machine
Before, the control device is additionally operable to, and controls the washing machine to be dehydrated with preset rotation speed, so that the washing machine undergarment
Moisture content be in preset range.
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| CN106702700B (en) * | 2016-11-15 | 2019-11-05 | Tcl家用电器（合肥）有限公司 | Clothes drying method |
| CN108396530B (en) * | 2017-02-08 | 2021-06-29 | 重庆海尔洗衣机有限公司 | Drying judgment method for clothes dryer and clothes dryer |
| CN108085926A (en) * | 2017-12-14 | 2018-05-29 | 珠海格力电器股份有限公司 | Self-cleaning control method, control device and washing-drying integral machine |
| CN109957955B (en) * | 2017-12-25 | 2021-05-28 | 无锡小天鹅电器有限公司 | Control method and control device of washing and drying integrated machine and washing and drying integrated machine |
| WO2019169620A1 (en) * | 2018-03-09 | 2019-09-12 | 友隆电器工业(深圳)有限公司 | Method and device for detecting wet garment |
| CN108968763A (en) * | 2018-07-05 | 2018-12-11 | 深圳和而泰数据资源与云技术有限公司 | A kind of control method and intelligent closestool of intelligent closestool |
| CN110804847B (en) * | 2019-11-13 | 2020-10-30 | 珠海格力电器股份有限公司 | Drying apparatus, trunk determination method, and computer-readable storage medium |
| CN114016256A (en) * | 2021-11-24 | 2022-02-08 | 珠海格力电器股份有限公司 | Washing machine control method and device and washing machine |
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| KR101339803B1 (en) * | 2007-11-05 | 2013-12-10 | 동부대우전자 주식회사 | Dry control method for dryer |
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| CN102704238B (en) * | 2012-06-13 | 2015-02-04 | 无锡小天鹅股份有限公司 | Drying judgment method for rotary washing machine |
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| CN103266442A (en) * | 2013-04-26 | 2013-08-28 | 无锡小天鹅股份有限公司 | Washing machine and drying control method thereof |
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Effective date of registration: 20190729 Address after: 214028 No. 18 Changjiang South Road, Wuxi National High-tech Development Zone, Jiangsu Province Patentee after: Wuxi Swan Electrical Appliances Co., Ltd. Address before: 214028 Wuxi Changjiang Road, Wuxi New District, Jiangsu, No. 18 Patentee before: Wuxi Xiaotianer Co., Ltd. |