CN1773006A - Drying control method for washing machines with drying functions/drying machines - Google Patents
Drying control method for washing machines with drying functions/drying machines Download PDFInfo
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- CN1773006A CN1773006A CNA2005100531321A CN200510053132A CN1773006A CN 1773006 A CN1773006 A CN 1773006A CN A2005100531321 A CNA2005100531321 A CN A2005100531321A CN 200510053132 A CN200510053132 A CN 200510053132A CN 1773006 A CN1773006 A CN 1773006A
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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
- D06F58/32—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
-
- 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
- D06F2103/04—Quantity, e.g. weight or variation of weight
-
- 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
- D06F2103/28—Air properties
- D06F2103/32—Temperature
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
-
- 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
- D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
-
- 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
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
A drying control method for washing machines with drying functions/drying machines comprises an air temperature-measuring step of heating air passing through a heater duct (110) by means of a heater (103) during a drying operation of the washing machine with drying function or the drying machine, and measuring at least one of the temperature (Tin) of air before being heated and the temperature (Tout) of air after being heated about the heater (103), a load-calculating step of calculating total load, the sum of the amount of laundry and moisture content contained in the laundry, using a ratio of the change in temperature to the change in time at a specific section while the temperature (Tin or Tout) of the air is measured at the air temperature-measuring step, a moisture content-calculating step of calculating the moisture content contained in the laundry using a ratio of the change in temperature to the change in time at another specific section next to the specific section of the load-calculating step, and a drying operation-controlling step of controlling the drying operation of the washing machine with drying function or the drying machine according to the total load and the moisture content calculated at the load-calculating step and moisture content-calculating step. According to the drying control method, it is possible to more accurately estimate drying time using moisture content contained in the laundry and more efficiently control the drying operation corresponding to various load conditions.
Description
Technical field
The present invention relates to have the washing machine of functions/drying or drying machine, and relate in particular to the drying control method of the washing machine that is used to have functions/drying/drying machine, it can utilize the variations in temperature of circulating air to calculate to wait the moisture of washing article estimating drying time, thereby control has the drying process of the washing machine of functions/drying or drying machine exactly.
Background technology
Usually, washing machine is categorized as the washing machine that can only wash and can not only washs and the washing machine with functions/drying that can be dry.In addition, also can use drying machine to carry out drying specially.
Fig. 1 is a cross sectional side view, and it shows the internal structure of the conventional washing machine with functions/drying.
As shown in Figure 1, the washing machine with functions/drying of this routine comprises: be in the casing 2 simultaneously the bucket 10 that is supported by spring 4 and damper 6; Be installed in the bucket 10 and be used to hold the cylinder 20 of waiting to wash article; Be hinged to the door 22 of casing 2 with the front portion of opening and closing cylinder 20; Place the heating duct 30 on the bucket 10, heater 26 and air blast 27 wherein are installed, be used for hot blast feeding is gone into bucket 10; And condensation pipe 40, the one end is connected to the lower end of bucket 10 sidepieces, and the other end is connected to heating duct 30, is used for the contained moisture of condensation cycle air.
Packing ring 12 is attached to bucket 10, this packing ring and door 22 airtight contacts when door 22 is closed.Heating duct is connected to packing ring 12.
The motor 14 that is used for rotary drum 20 also is attached to bucket 10.
Be used for being connected to bucket 10 in washing or the water supply unit 15 that washings or washings is supplied into during rinsing (rinse) bucket 10.Drainage cell 16 is connected to the bottom of bucket 10.
Drainage cell 16 comprises: the bellows drainpipe 17 that is connected to bucket 10 bottoms; Be connected to the draining pump 18 of bellows drainpipe 17; And the scupper hose 19 that is connected to draining pump 18.
Cylinder 20 provides through hole 22 and therefrom passes to allow washings or air on its circumferential section or rear portion.
Be used to rock the inner circumferential surface that the lift 24 of waiting to wash article is attached to cylinder 20.
Air blast 27 comprises: the draft fan 28 that places heating duct 30 rotatably; And be installed in the fan motor 29 that is used to rotate draft fan 28 in the heating duct 30.
Chilled(cooling) water supply (CWS) unit 42 is connected to condensation pipe 40, and it is used for that condensation pipe 40 is gone in chilled(cooling) water supply (CWS) and is included in the moisture of circulating air with condensation, so just will drying article to be washed.
Chilled(cooling) water supply (CWS) unit 42 comprises: be connected to the cooling water valve 44 of external hose 43, it is used to allow cooling water by outer conduit 43 supplies by wherein or stop cooling water by outer conduit 43 supplies by wherein; And cooling water flexible pipe 45, its cooling water that is used for passing through cooling water valve 44 imports condensation pipe 40.
Below explanation is had the operation of the conventional washing machine with functions/drying of above-mentioned structure.
Drop into cylinder 20 when the user will wait to wash article, close door 22, and when starting the washing machine with functions/drying, washings are provided to the washing machine with functions/drying by water feeding unit 15.
Especially, washings are supplied into bucket 10 so that washings are full of bucket 10, and the through hole 22 by cylinder 20 is introduced in the cylinder 20 so that the article to be washed in the cylinder 20 are washed water gets wet subsequently.
Along with motor after the supplying washing water is as mentioned above started, cylinder 20 is rotated.So the article to be washed in the cylinder 20 are shaken so that by washings from waiting that washing article wipes out a blot.
After the above-mentioned washing operation of the washing machine with functions/drying finished, the washings of bucket 10 apoplexy involving the solid organs were discharged from the washing machine with functions/drying by drainage cell 16.
Subsequently, the rinsing operation that has the washing machine of functions/drying is several times stayed the foam of waiting to wash on the article to rinse.Water supply unit 15 and motor 14 controlled will remain in the foam of waiting to wash on the article rinse, as in the washing operation of washing machine with functions/drying.Addle comprises foam, discharges from the washing machine with functions/drying by drainage cell 16.
After the rinsing of the washing machine that has functions/drying as mentioned above like that several times operation, the dehydrating operations of washing machine with functions/drying is to separate moisture eccentrically from waiting to wash the article.
Motor 14 rotation at a high speed and is discharged from the washing machine with functions/drying by drainage cell 16 from waiting to wash the article isolated moisture so that moisture is separated eccentrically from waiting to wash the article.
Subsequently, has the drying process of washing machine of functions/drying with drying article to be washed.
At first, hotwire 14 is with rotary drum 20.So the washing articles in the cylinder 20 is shaken.
Open the temperature of heater 26, and start fan motor 29 to rotate draft fan 28 with raising heater 26 surrounding airs.Cooling water valve 44 and draining pump 18 alternately open and close at interval with preset time.
Along with draft fan 18 rotates, the air in the cylinder 20 contacts so that from waiting to wash article removal heat and moisture with article to be washed in the cylinder 20.So air becomes the air of low temperature and high humility.The air of low temperature and high humility passes through hole 22, flows into the space between cylinder 20 and the bucket 10, and is directed into condensation pipe 40 subsequently.By in the condensation pipe 40, the air water condensation that is cooled.
The air by condensation pipe 40 is heated by heater 26 by heating duct 30 time.So air becomes hot blast.Hot blast passes packing ring 12, is discharged into packing ring 16 inboards, and is supplied into cylinder 20 subsequently.Like this, air repeatedly circulates so that drying article to be washed.
The cooling water that is supplied to condensation pipe 40 is assembled in bucket 10 by condensation pipe 40, and subsequently by draining pump 18 termly pumping go out so that cooling water is discharged from the washing machine with functions/drying.
After the washing machine with functions/drying carries out the heated-air drying operation of a period of time, close heater 26.At this moment, cylinder 20 and draft fan 28 still rotate the cold air drying operation with the washing machine with functions/drying.
After the washing machine with functions/drying carries out the cold air drying operation of a period of time, stop cylinder 20 and draft fan 28 have the washing machine of functions/drying with end drying process.
Yet, in having the conventional washing machine with functions/drying of above-mentioned structure and operation, after the drying process of the washing machine with functions/drying begins, do not show the drying time of estimation.Even shown the drying time of estimating, drying time is also inaccurate, because be provided with at random drying time.Therefore, the problem with conventional washing machine of functions/drying is to estimate drying time accurately.
Can utilize degree of drying that be set drying time based on appreciable variations in temperature in the final stage of the drying process of conventional washing machine with functions/drying.Yet when waiting to wash article seldom, the article to be washed in the cylinder are intertwined, and perhaps remain washing articles again when dropping in the cylinder, and temperature can change sharp.Therefore, can not utilize baking temperature to determine drying time exactly.
In having the conventional washing machine of functions/drying, be included in to wait to wash in the article and constitute to be dried waiting and wash the moisture of article load and calculate dividually.Therefore, the conventional washing machine with functions/drying with corresponding based on the loading condition of waiting to wash the article moisture, does not consequently carry out drying process more fully.
Summary of the invention
Therefore, consider that the problems referred to above have developed the present invention, and target of the present invention provides a kind of drying control method that is used to have the washing machine of functions/drying/drying machine, its can be before detecting air be heated during the drying process of the washing machine with functions/drying or drying machine and variations in temperature afterwards wait to wash the moisture that comprises in the article so that calculate, thereby estimate drying time more accurately, and more effectively control drying process corresponding to different loading conditions.
According to the present invention, above-mentioned and other target can be finished by a kind of drying control method that is used to have the washing machine of functions/drying/drying machine is provided, this method comprises: the air themperature measuring process, during the drying process of washing machine,, and in the air themperature after being heated around air themperature before the heating and the heater at least one measured by means of heater heating air by heating duct with functions/drying or drying machine; The load calculation step is utilized the ratio calculation total load of a physical segment place variations in temperature and time variation when measuring air themperature in the air themperature measuring process, wait to wash the amount of article and wait to wash the moisture sum that comprises in the article; The moisture calculation procedure utilizes another physical segment place variations in temperature after the physical segment of load calculation step to wait to wash the moisture that comprises in the article with the ratio calculation of time variation; With drying process control step, has the drying process of the washing machine of functions/drying or drying machine according to the total load of in load calculation step and moisture calculation procedure, calculating and moisture control.
Preferably, the air themperature measuring process comprises the temperature of measurement by the air that heater heated.
Preferably, the ratio of the variations in temperature of the air after the drying process initialization of the washing machine with functions/drying or drying machine of the physical segment in load calculation step and the moisture calculation procedure and time variation is set after being lower than predeterminated level.
Preferably, the difference after being heated around air themperature and the heater before the physical segment in load calculation step and the moisture calculation procedure is heated after the drying process initialization of the washing machine with functions/drying or drying machine between the air themperature is set after being lower than predeterminated level.
Preferably, carrying out along with the drying process of washing machine with functions/drying or drying machine, carry out from the transformation of the physical segment of load calculation step to the physical segment of moisture calculation procedure, and from waiting to wash the actual temp that removes substantially the article, distinguish the physical segment of load calculation step and the physical segment of moisture calculation procedure based on moisture.
Preferably, the physical segment of load calculation step and moisture calculation procedure is set based on concrete time range.
Preferably, the physical segment of load calculation step and moisture calculation procedure is set based on the actual temp scope.
Preferably, drying process control step comprises: utilize the ability and the actual firing rate of moisture that calculates in load calculation step and moisture calculation procedure and the heater of considering the washing machine with functions/drying or drying machine to estimate drying time.
Preferably, this drying control method that is used to have the washing machine of functions/drying/drying machine also comprises: the degree of drying measuring process, measurement be used for air that drying waits to wash article by condensation pipe in to be included in airborne moisture carry out condensation cooling water temperature with and the temperature of the air that by condensation pipe the time, has been removed of moisture, and drying process control step comprises: the degree of drying determining step of utilizing the difference between the temperature of the temperature of cooling water and air to determine to wait to wash the article degree of drying.
Preferably, drying process control step comprises: finish to have the drying process of the washing machine of functions/drying or drying machine when the difference between the temperature of the temperature of cooling water and air is higher than predeterminated level.
Preferably, drying process control step comprises: if according to time of definite end drying process of degree of drying be higher than predeterminated level based on the error between estimation drying time of moisture, based on the time in estimation past drying time of moisture or in error range end have the drying process of the washing machine of functions/drying or drying machine.
During the drying process of washing machine with functions/drying or drying machine, the drying control method that is used for having the washing machine of functions/drying/drying machine is surveyed the moisture that the variations in temperature of air comprises with calculating article to be washed before and after the heating, thereby estimate drying time more accurately, and more effectively control drying process corresponding to different loading conditions.
Description of drawings
From the following detailed description with accompanying drawings, can more be expressly understood above and other objects of the present invention, characteristics and other advantage, in the accompanying drawings:
Fig. 1 is a partial side view, shows the conventional washing machine with functions/drying;
Fig. 2 is a partial side view, and the washing machine of having used according to drying control method of the present invention with functions/drying is shown;
Fig. 3 is a chart, shows the baking temperature change curve and the difference of the different sections of the washing machine that has functions/drying according to the present invention;
Fig. 4 is a flow chart, shows the drying control method that is used for having according to the present invention the washing machine of functions/drying; With
Fig. 5 is a chart, shows the load based on the washing machine that has functions/drying according to the present invention, waits to wash the variation of the moisture that comprises in the article and the relation between the drying time percentage.
The specific embodiment
Now, will describe in detail a preferred embodiment of the present invention with reference to the accompanying drawings.
Fig. 2 is a partial side view, and the washing machine of having used according to drying control method of the present invention with functions/drying is shown.
As shown in Figure 2, the washing machine that has functions/drying according to the present invention comprises: casing 52, and it has and allows to wait to wash article inlet/outlet opening to be washed 51 that article m passes through; Be in the bucket 60 in the casing 52; Be installed in and be used to hold the cylinder of waiting to wash with dry article 80 in the bucket 60; Be connected to bucket 60 motors 90 with rotary drum 80; Be hinged to the door 100 of casing 52 with the front portion of opening and closing cylinder 80; Place the heating duct 110 on the bucket 60, drying heater 103 and air blast 106 wherein are installed, be used for hot blast feeding is gone into bucket 60; Be connected to the condensation pipe 120 of heating duct 110 in the rear end of bucket 60, be used for drying and wait to wash article m thereby be used for the contained moisture of condensation air; And the chilled(cooling) water supply (CWS) unit 130 that is used for chilled(cooling) water supply (CWS) is gone into condensation pipe 120.
Casing 52 has formed the appearance of the washing machine with functions/drying.Upper forepart or top at casing 52 are provided with control panel 53, are used to control the operational mode and the time of the washing machine with functions/drying.
Bucket 60 places casing 52, and bucket 60 is by being supported by damper 61 that is connected to casing 52 and spring 62 with damping modes simultaneously.
Bucket 60 is provided with open pore 63, and it is arranged in the back of article inlet/outlet opening 51 to be washed.Bucket 60 flatly places casing 52.
Packing ring 64 is attached to bucket 60, and it is arranged between open pore 63 and the article inlet/outlet opening to be washed 51.When door 100 is closed, packing ring 64 and door 100 airtight contacts.
Packing ring 64 is provided with the bucket import of giving prominence to from packing ring 64 65.Bucket import 65 is connected to heating duct 110.
On the front end of bucket 60, be furnished with the water feeding unit 70 that is used for supplying washing water.
Pre-position in bucket 60 bottoms is formed with outlet 72, and deliverying unit 74 is connected to this outlet 72.
Washing heater 76 is installed in the bucket 60, and it is used for the washings at the washing operation heating bucket of the washing machine with functions/drying.Be formed with heater holding tank parts 77 at the following middle part of bucket 60, it is recessed to hold washing heater 76.
Especially, be furnished with barrel cooling-water temperature sensor 78, be used for when the drying process of washing machine surveying the temperature of the cooling water that falls from condensation pipe 120 with functions/drying in the bottom of bucket 60.Stop supplies was to the electric current that washs heater 76 when bucket cooling-water temperature sensor 78 can be used as the sensor of measuring temperature of washing water and washs heater 76 by superheated with box lunch.
Be formed with conduit connected entrance 79 in the side of bucket 60, condensation pipe 120 is connected to this conduit connected entrance.
Cylinder 80 is provided with open pore 81, and it is arranged in the back of article inlet/outlet opening 51 to be washed.Cylinder 80 flatly is arranged in the bucket 60.The circumferential surface or the back side at cylinder 80 are provided with through hole 82.
Air blast 106 comprises: the draft fan 107 that places heating duct 110 rotationally; And be installed in the fan motor 108 that is used to rotate draft fan 107 in the heating duct 110.
Between the drying heater 103 of heating duct 110 and bucket import 65, be equipped with and add hot air temperature sensor 112, be used to measure the temperature of the air that is heated by drying heater 103.Added hot air temperature sensor 112 and can be used for the damage of detecting temperature to prevent to wait to wash article during by superheated when the air that is supplied to cylinder 80.
Condensation air temperature sensor 122 is installed in the top of condensation pipe 120, be used for adding hot-air, measure the temperature of the air that its moisture has been removed during by condensation pipe at air so that before having the various controls of drying process of washing machine of functions/drying.Preferably, condensation air sensor 122 is arranged between the cooling water inlet 134 of the entrance point of draft fan 107 and chilled(cooling) water supply (CWS) unit 130 so that the temperature of condensation air sensor 122 energy measurements and the air of cooling water sufficient heat exchange simultaneously condensation air temperature sensor 122 do not contact with the water droplet of cooling water.
Near the conduit connected entrance 79 in condensation pipe 120 bottoms cooling-water temperature sensor 123 is installed, is used to measure the temperature of cooling water, this cooling water is used for condensation and is included in the airborne moisture that passes condensation pipe.
Chilled(cooling) water supply (CWS) unit 130 comprises: cooling water valve 132, and it is connected to external hose 131 to allow cooling water by external hose 131 supplies by wherein or stop cooling water by external hose 131 supplies by wherein; And cooling water flexible pipe 131, its cooling water that is used for passing through cooling water valve 132 imports condensation pipe 120.Cooling water inlet 134 is formed at the end of cooling water flexible pipe 133.
Washing machine with functions/drying also comprises: the control module (not shown) that is used to control the drying process of waiting to wash article.Especially, control module receives by air temperature sensor 112 and 122 and cooling-water temperature sensor 78 and 123 temperature values of being surveyed, with total load and the moisture of calculating in the drying process process of washing machine with functions/drying, thus and the time of the definite drying process end of definite degree of drying.Control module is configured to control all operations of the washing machine with functions/drying.Preferably, control module is connected to control panel 53, so that control signal is input to motor 90 and 108, heater 76 and 103, sensor 78,112,122 and 123 and valve 132 also have and supply water and deliverying unit 70 and 74, perhaps from they output control signals.
The drying control method that below will describe the drying process of the washing machine that has said structure according to the present invention in detail and be used to have the washing machine of functions/drying with functions/drying.
When the drying process of the washing machine with functions/drying begins, according to a control signal starter 90 of control module.When motor 90 was activated, cylinder 80 was rotated.Simultaneously, start draft fan and drying heater 103 in the heating duct 110, and cooling water valve 132 is opened so that cooling water is supplied into condensation pipe 120.
When draft fan 106 was rotated, the air in the cylinder 80 passed through condensation pipe 120 and heating duct 110, and is supplied into cylinder 80 subsequently once more.Air has so just circulated.At this moment, the air that contacts with article to be washed in by cylinder 80 removes heat and moisture from article to be washed.So air becomes the air of low temperature and high humility.The air of low temperature and high humility is introduced in the condensation pipe 120.When the condensation pipe 120, the air water institute condensation that is cooled, and therefore, moisture partly removes from air.The air by condensation pipe 120 is heated by heater 103 by heating duct 110 time.So air becomes hot blast.Hot blast is supplied into cylinder 80.Like this, air repeatedly circulates so that drying article to be washed.
Fig. 3 is a chart, shows the baking temperature change curve and the difference of the different sections of the washing machine that has functions/drying according to the present invention.Fig. 4 is a flow chart, show the drying control method that is used for having the washing machine of functions/drying according to the present invention, and Fig. 5 is a chart, show load, wait to wash the variation of the moisture that comprises in the article and the relation between the drying time percentage based on the washing machine that has functions/drying according to the present invention.
At first with reference to figure 3, carry out time and variations in temperature based on drying, drying process with washing machine of functions/drying is undertaken by following each section: and air heat section that circulating air heat inner to cylinder 80, treat washing articles after the air heat section and wait to wash the moisture that comprises in the article and carry out the heated load bringing-up section, and after the load bringing-up section with moisture from waiting to wash the section of drying that removes the article.
In the air heat section, the air that has in the washing machine of functions/drying is heated.Thereby as shown in Figure 3, the temperature of air sharply raises.In the load bringing-up section, adding hot-air and waiting to wash article or wait to wash and carry out heat exchange between the moisture that comprises in the article.Subsequently, the temperature of air slowly raises.In the section of drying, wait to wash the moisture that comprises in the article and be evaporated basically so that article to be washed are dried.
As a reference, Tout shown in Figure 3 is the temperature variation curve of the air that heated by heater 103 of expression, it is surveyed by adding hot air temperature sensor 112, Tin shown in Figure 3 is the curve of the variations in temperature of expression air before being heated by heater 103, it is surveyed by condensation air temperature sensor 122, and Tdh shown in Figure 3 is the curve of the temperature gap (Tout-Tin) between the air of representing to add before hot-air and the heating.
And Tw shown in Figure 3 is the curve that the expression cooling water temperature changes, and it is surveyed by bucket cooling-water temperature sensor 78.The temperature of cooling water can be surveyed by the cooling-water temperature sensor 123 that is arranged in condensation pipe 120 bottoms.Tdw shown in Figure 3 is that expression is by the air before heater 103 heating and the curve of the temperature gap between the cooling water.
During the drying process of the washing machine that has functions/drying as mentioned above, can utilize temperature in each section this fact that changes to calculate total load, promptly wait to wash the amount of article and wait to wash the moisture sum that comprises in the article.In addition, moisture can with the total load separate computations.
Total load and moisture not only can utilize the temperature (Tout) of the air that is heated by heater 103 to calculate, and can utilize by the temperature (Tin) of the air before heater 103 heating and calculate, because the variations in temperature of the air that is heated by heater 103 is with approximate even by the ratio between the variations in temperature of the air before heater 103 heating.For convenience of explanation, below with reference to the Fig. 4 among this embodiment of the present invention temperature (Tout) calculating total load and the moisture of utilizing the air that is heated by heater 103 described.
At first, the temperature (Tin) of determining to have added air before the temperature (Tout) of hot-air or the heating and heater 103 on every side the difference (Tdh) between the temperature (Tout) of heated air whether be lower than predeterminated level (S1).
Determining of step S1 is the standard of distinguishing air heat section and load bringing-up section, as shown in Figure 3.Determine, if by add before slope that the temperature that adds hot-air (Tout) that hot air temperature sensor 112 surveyed changes or the heater 103 and before air between the ratio of variations in temperature (Tdh) be lower than predeterminated level, just carry out transformation from the air heat section to the load bringing-up section.
Especially, as shown in Figure 3, added temperature (Tout) curve of hot-air and air before being heated and temperature gap afterwards (Tdh) raise sharp in the air heat section, and added temperature (Tout) curve of hot-air and air before being heated and temperature gap afterwards (Tdh) raise lentamente or temperature gap is uniform in the load bringing-up section.Thereby, determine, to have the drying process of the washing machine of functions/drying in the load bringing-up section based on the ratio of variations in temperature and time variation.
When the total load of computational load bringing-up section, added ratio that the temperature and time of hot-air changes in the load bringing-up section of Fig. 3 and changed according to the size of total load.Thereby utilization has added the variations in temperature of hot-air and the radiometer of time variation has been calculated load (S2).
The load bringing-up section is to have the section that air in the washing machine of functions/drying is heated to high temperature, therefore, waits to wash article and waits to wash the moisture that comprises in the article and be heated basically.When waiting to wash the amount of article and wait to wash the moisture that comprises in the article when very big that the temperature (Tout) that has added hot-air changes relative less in the load bringing-up section with the ratio of time variation.When waiting to wash the amount of article and wait to wash the moisture that comprises in the article when very little, it is relatively large in the load bringing-up section that the temperature (Tout) that has added hot-air changes the ratio that changes with the time.When the amount of waiting to wash article is very little and wait to wash the moisture that comprises in the article when very big, the temperature (Tout) that has added hot-air changes relative less in the load bringing-up section with the ratio of time variation.
Above-mentioned explanation can be represented with following structure with reference to figure 3.
Load↑→ΔT(＝T
2-T
1)↓，Load↓→ΔT(＝T
2-T
1)↑
As a reference, load is thermal capacitance and waits to wash the product (rather than pure quality (kg)) that article specifically add ratio of specific heat.This can represent with following expression formula.
Load＝M
cloth+M
water×F
F＝C
water/C
cloth＝4184/1680＝2.49
Wherein, M represents to wait to wash the quality of article and water, and F is the ratio of specific heat, and C is for waiting to wash article and specific heat of water.
Be used in concrete location in the load bringing-up section as mentioned above if added the fluctuation of the ratio that the variations in temperature of hot-air and time changes, just may calculate total load, just wait to wash the amount of article and wait to wash the moisture sum that comprises in the article.
Here, by by testing several times suitable tabular value being set, it is possible calculating total load based on the fluctuation of ratio.
Can be based on a concrete time range (t
1-t
2) or concrete temperature range (T
1-T
2) set the concrete zone in the load bringing-up section.In other words, based on the concrete time range (t in the load bringing-up section
1-t
2) measure variations in temperature to calculate a ratio that is used to calculate total load, perhaps based on the actual temp scope (T in the load bringing-up section
1-T
2) measure the required time to calculate a ratio that is used to calculate total load.
Next step determines the time of load bringing-up section when the section of drying changes.At this moment, based on about 100 ℃ or a higher actual temp, determine to wait to wash whether the moisture that comprises in the article is evaporated away so that remove moisture (S3) the article from waiting to wash basically.
During moisture in the calculating section of drying, add the ratio that the variations in temperature of hot-air and time changes at the Duan Zhongyi that dries of Fig. 3 and change according to waiting to wash the moisture that comprises in the article.Thereby utilization has added the variations in temperature of hot-air and the radiometer of time variation has been calculated moisture (S4).
In other words, the section of drying is that total load (wait to wash the amount of article+wait to wash the moisture that comprises in the article) in the cylinder is heated fully so that wait to wash the section that the moisture that comprises in the article is evaporated basically and is removed subsequently.When waiting to wash the moisture that comprises in the article when very big, the ratio that the variations in temperature that has added hot-air and time change is relative less in the section of drying.When waiting to wash the moisture that comprises in the article when very little, it is relatively large in the section of drying to have added the ratio that the variations in temperature of hot-air and time changes.
Above-mentioned explanation can be represented with following structure with reference to figure 3.
IMC↑→ΔT(＝T
4-T
3)↓，IMC↓→ΔT(＝T
4-T
3)↑
Wherein, IMC represents moisture.
Be used in Duan Zhongyi the concrete location of drying as mentioned above if added the fluctuation of the ratio that the variations in temperature of hot-air and time changes, just may calculate and wait to wash the moisture that comprises in the article.
Here, as the aforementioned calculation total load, by by testing several times suitable tabular value being set, it is possible calculating moisture based on the fluctuation of ratio.
Can be based on a concrete time range (t
3-t
4) or concrete temperature range (T
3-T
4) set the concrete zone in the section of drying.Be similar to the setting in concrete zone in the load bringing-up section.
Calculating after total load to be dried and moisture calculate separately from total load, control module has the drying process of the washing machine of functions/drying based on the Numerical Control that calculates.
Especially, the moisture that the control module utilization calculates is also considered the ability of heater 103 and actual firing rate and estimate drying time, and with drying time of estimating by control panel 53 outputs informing user (S5) drying time of this estimation.
Dryly during the drying process of washing machine wait to wash the required time of article and determined by waiting to wash the moisture that comprises in the article with functions/drying, but not total load.Thereby, if used the moisture of aforementioned calculation, can estimate the time that drying process finishes exactly.At this moment, can also be by the control tabular value of testing setup several times and output according to the estimation drying time of tabular value based on moisture.
Estimate drying time by the calculating of total load and moisture as mentioned above, and utilize before the heater 103 and afterwards the temperature (Tw) of the temperature of air (Tin) difference (Tdw) and cooling water determine degree of drying (S6).
Especially, when being used for drying and waiting to wash the air of article and pass condensation pipe 120, the temperature (Tw) that comprises the cooling water of moisture in the condensation air is measured by the cooling-water temperature sensor 123 or the bucket cooling-water temperature sensor 78 of condensation pipe 120, and the temperature (Tin) of the air that by condensation pipe 120 time, has been removed of its moisture by add hot air temperature sensor 112 or condensation air temperature sensor 122 measure.Based on the difference (Tdw) between the temperature (Tin) of the temperature (Tw) of cooling water and air, determine to wait to wash the degree of drying of article, to calculate the time that drying process finishes.
Next step, to based on comparing estimation drying time of moisture and drying process concluding time of determining according to degree of drying, and whether definite relative error is below predeterminated level (S8).
When definite relative error was lower than predeterminated level, the drying process with washing machine of functions/drying finished (S9) in the drying process concluding time of determining according to degree of drying.When definite relative error was higher than predeterminated level, the drying process with washing machine of functions/drying finished (S10) in estimation past drying time or the time in the relative error scope based on moisture.
Especially, when relative error is lower than predeterminated level, can determine to have carried out quite exactly determining of degree of drying, and the drying process with washing machine of functions/drying finishes according to degree of drying.Thereby the drying process with washing machine of functions/drying continues a period of time, and this almost is equivalent to the estimation drying time based on moisture.
On the other hand, when relative error is lower than predeterminated level, can determine that the definite of degree of drying do not carry out exactly, and the drying process with washing machine of functions/drying finished in the time based on estimation past drying time of moisture, perhaps finished between the time of drying process determining based on the time in estimation past drying time of moisture with according to degree of drying to finish.
As a reference, when the door of the washing machine with functions/drying is opened, remain washing articles again to be dropped into cylinder, perhaps to be dried waiting washed the amount of article when very little, and degree of drying may be inaccurate.When existing than big difference between time that the drying process of determining according to degree of drying finishes and estimation drying time, can determine that the calculating of degree of drying is unreliable based on moisture.Thereby, can consider the calculating of degree of drying, the drying process of washing machine that perhaps has a functions/drying is in the time in the past of estimating drying time and finish between the time that the drying process of determining according to degree of drying finishes.
From above-mentioned explanation clearly, during the drying process of washing machine with functions/drying or drying machine, be used for having the moisture that drying control method is surveyed before the heater and the variation of air themperature afterwards comprises with calculating article to be washed of the washing machine of functions/drying/drying machine, thereby estimate drying time more accurately, and more effectively control drying process corresponding to different loading conditions.
Although for exemplary purpose discloses the preferred embodiments of the present invention, those skilled in the art can understand, do not departing from as the disclosed scope of the invention of claims with below the purport, different modifications, increase and replacement are possible.
Claims (11)
1. drying control method that is used to have the washing machine of functions/drying/drying machine comprises:
The air themperature measuring process, during the drying process of washing machine with functions/drying or drying machine by means of heater (103) heating air by heating duct (110), and to the air themperature (Tin) before the heating and heater (103) are heated in the air themperature (Tout) afterwards on every side at least one is measured;
The load calculation step, utilize ratio calculation total load when in the air themperature measuring process, measuring air themperature (Tin or Tout), wait to wash the amount of article and wait to wash the moisture sum that comprises in the article in a physical segment place variations in temperature and time variation;
The moisture calculation procedure utilizes another physical segment place variations in temperature after this physical segment of load calculation step to wait to wash the moisture that comprises in the article with the ratio calculation of time variation; And
Drying process control step has the drying process of the washing machine of functions/drying or drying machine according to the total load of calculating and moisture control in load calculation step and moisture calculation procedure.
2. the method for claim 1, wherein the air themperature measuring process comprises the temperature (Tout) of the air that measurement is heated by heater (103).
3. the method for claim 1, wherein the temperature (Tin or Tout) of the air after the drying process of the washing machine with functions/drying or drying machine begins of the physical segment in load calculation step and the moisture calculation procedure change the ratio that changes with the time be lower than predeterminated level after setting.
4. the method for claim 1, the difference after air themperature (Tin) and heater (103) were heated on every side before wherein the physical segment in load calculation step and the moisture calculation procedure was heated after the drying process of the washing machine with functions/drying or drying machine begins between the air themperature (Tout) is set after being lower than predeterminated level.
5. the method for claim 1, wherein along with the carrying out of the drying process of washing machine with functions/drying or drying machine, carry out from the transformation of the physical segment of load calculation step to the physical segment of moisture calculation procedure, and from waiting to wash the actual temp that removes substantially the article, distinguish the physical segment of load calculation step and the physical segment of moisture calculation procedure based on moisture.
6. the method for claim 1, wherein the physical segment of load calculation step and moisture calculation procedure is based on concrete time range (t
1-t
2, t
3-t
4) and set.
7. the method for claim 1, wherein the physical segment of load calculation step and moisture calculation procedure is based on actual temp scope (T
1-T
2, T
3-T
4) and set.
8. the method for claim 1, wherein drying process control step comprises: utilize the moisture that calculates in load calculation step and moisture calculation procedure, and the ability and the actual firing rate of heater (103) of considering to have the washing machine of functions/drying or drying machine estimated drying time.
9. the method for claim 1 also comprises:
The degree of drying measuring process, to be used for air that drying waits to wash article by condensation pipe (120) in to be included in temperature (Tw) that airborne moisture carries out the cooling water of condensation with and the temperature (Tin) of the air that by condensation pipe (120) time, has been removed of moisture measure, wherein
Drying process control step comprises: the degree of drying determining step of utilizing the difference (Tdw) between the temperature (Tin) of the temperature (Tw) of cooling water and air to determine to wait to wash the article degree of drying.
10. method as claimed in claim 9, wherein drying process control step comprises: the difference (Tdw) between the temperature (Tin) of the temperature (Tw) of cooling water and air finishes to have the drying process of the washing machine of functions/drying or drying machine when being higher than predeterminated level.
11. method as claimed in claim 9, wherein drying process control step comprises:
Moisture that utilization is calculated in the moisture calculation procedure and consideration have the ability and the actual firing rate of the heater (103) of the washing machine of functions/drying or drying machine and estimate drying time; With
If be higher than predeterminated level, based on time in estimation past drying time of moisture or in error range, finish to have the drying process of the washing machine of functions/drying or drying machine according to time of definite end drying process of degree of drying and based on the error between estimation drying time of moisture.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040092561 | 2004-11-12 | ||
| KR1020040092561A KR100748963B1 (en) | 2004-11-12 | 2004-11-12 | Drying control method for washer combined with dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1773006A true CN1773006A (en) | 2006-05-17 |
Family
ID=35457979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100531321A Pending CN1773006A (en) | 2004-11-12 | 2005-03-04 | Drying control method for washing machines with drying functions/drying machines |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060101587A1 (en) |
| EP (1) | EP1657351A3 (en) |
| KR (1) | KR100748963B1 (en) |
| CN (1) | CN1773006A (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR100748963B1 (en) | 2007-08-13 |
| EP1657351A3 (en) | 2009-01-21 |
| EP1657351A2 (en) | 2006-05-17 |
| KR20060046995A (en) | 2006-05-18 |
| US20060101587A1 (en) | 2006-05-18 |
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