CN114086375B - Washing machine drying control method and device, washing machine and storage medium - Google Patents
Washing machine drying control method and device, washing machine and storage medium Download PDFInfo
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- CN114086375B CN114086375B CN202111454307.5A CN202111454307A CN114086375B CN 114086375 B CN114086375 B CN 114086375B CN 202111454307 A CN202111454307 A CN 202111454307A CN 114086375 B CN114086375 B CN 114086375B
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- 238000001035 drying Methods 0.000 title claims abstract description 131
- 238000005406 washing Methods 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000003860 storage Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- 238000010438 heat treatment Methods 0.000 claims description 21
- 230000015654 memory Effects 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 17
- 230000018044 dehydration Effects 0.000 claims description 12
- 238000006297 dehydration reaction Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 description 14
- 230000005494 condensation Effects 0.000 description 14
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- 238000005485 electric heating Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000007791 dehumidification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 244000144992 flock Species 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
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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
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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
- 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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- 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
- D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers
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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
- 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
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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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/02—Water supply
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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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/08—Draining of washing liquids
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention discloses a washing machine drying control method, a washing machine drying control device, a washing machine and a storage medium, wherein the washing machine drying control method comprises the following steps: after the washing machine enters a drying and judging stage, adjusting a waterway control element to enable condensed water to be accumulated at the bottom of a drum of the washing machine; after a first time period preset by the waterway control element is adjusted, respectively acquiring a first temperature at the bottom of the roller and a second temperature in the roller; and calculating a first difference value between the first temperature and the second temperature, and when the first difference value is greater than or equal to a preset first threshold value, judging that the condensed water enters the roller, and reversely adjusting the water path control element. This is because, after the washing machine enters the drying and drying stage, the first temperature of the bottom of the drum is reduced and the second temperature of the inside of the drum is substantially unchanged by adjusting the water path control element to accumulate the condensed water at the bottom of the drum of the washing machine, so that whether the condensed water exists in the drying process can be determined by judging the difference between the first temperature and the second temperature.
Description
Technical Field
The invention relates to the technical field of electric washing machines, in particular to a washing machine drying control method and device, a washing machine and a storage medium.
Background
The drum washing and drying machine (washing and drying integrated) is a common household appliance, and is classified into a condensing type and a direct discharging type, and for the condensing type, the drum washing and drying machine is classified into a water cooling type (electric heating type) and a heat pump type. In the washer dryer of water condensing formula, the stoving needs let in the comdenstion water continuously, the condensation effect through the comdenstion water to damp and hot air in the bucket realizes the stoving function, the efficiency of stoving is improved through the relation of latent heat and sensible heat, guarantee the normal clear of stoving, if the tap closes appears in the stoving in-process, or the condensate valve damages, or what the water receiving pipe provided is that hot water (can't play the condensation effect because of the temperature height) etc. do not have the condition that the comdenstion water flows in, drying efficiency can greatly reduced, the clothing condition of drying not dry appears very easily, and because there is not the comdenstion water probably can make the inside vapor transpiration of cylinder, cause the water box condensation. Therefore, the introduction of condensed water during the drying process is critical.
Disclosure of Invention
Therefore, the invention provides a drying control method and device for a washing machine, the washing machine and a storage medium, which are used for judging whether condensed water enters a drum or not in the drying process.
According to a first aspect, an embodiment of the present invention provides a method for controlling a drying process of a washing machine, including: after the washing machine enters a drying and judging stage, adjusting a waterway control element to enable condensed water to be accumulated at the bottom of a drum of the washing machine; after the waterway control element is adjusted for a preset first time period, respectively obtaining a first temperature at the bottom of the roller and a second temperature in the roller; and calculating a first difference value between the first temperature and the second temperature, and when the first difference value is greater than or equal to a preset first threshold value, judging that condensed water enters the roller, and reversely adjusting the waterway control element.
With reference to the first aspect, in a first embodiment of the first aspect, the method for controlling a drying process of a washing machine further includes: when the first difference is smaller than the first threshold value, drying, heating and drying dehydration are carried out after the waterway control element is reversely adjusted; after the drying temperature rise and the drying dehydration are carried out, the waterway control element is adjusted, and a third temperature at the bottom of the roller and a fourth temperature in the roller are obtained after a second time period preset by the waterway control element is adjusted; calculating a second difference between the third temperature and the fourth temperature; when the second difference value is larger than or equal to the first threshold value, judging that condensed water enters the roller, and reversely adjusting the waterway control element; and when the second difference is smaller than the first threshold value, judging that the condensed water does not enter the drum, and sending a prompt message of the fault operation of the washing machine.
With reference to the first aspect or the first embodiment of the first aspect, in a second embodiment of the first aspect, after the reverse adjustment of the waterway control member, the waterway control member further includes: acquiring a laundry load amount in the washing machine; when the clothes load is greater than or equal to a preset second threshold value, when the drying judgment operation reaches a preset third time length, adjusting the waterway control element; respectively acquiring a fifth temperature at the bottom of the drum of the washing machine and a sixth temperature inside the drum after adjusting a third time period preset by the waterway control element; calculating a third difference between the fifth temperature and the sixth temperature; when the third difference is greater than or equal to a preset third threshold value, judging that condensed water enters the roller, and reversely adjusting the waterway control element; and when the third difference is smaller than the third threshold value, judging that the condensed water does not enter the drum, and sending a prompt message of the fault operation of the washing machine.
With reference to the first aspect, in a third embodiment of the first aspect, before adjusting the waterway control element to enable the washing machine drum bottom to accumulate condensed water, the method further includes: respectively acquiring a seventh temperature at the bottom of the roller and an eighth temperature inside the roller after drying, heating or drying and dewatering; and calculating a fourth difference value between the seventh temperature and the eighth temperature, and judging that the washing machine enters a drying and judging stage when the fourth difference value belongs to a preset first interval range.
With reference to the third embodiment of the first aspect, in the fourth embodiment of the first aspect, the laundry machine drying control method further includes: when the fourth difference value does not belong to the preset first interval range, continuing drying and heating and drying and dehydrating, and respectively obtaining a ninth temperature at the bottom of the roller and a tenth temperature in the roller after continuing drying and heating and drying and dehydrating; calculating a fifth difference value between the ninth temperature and the tenth temperature, and judging that the washing machine enters a drying and judging stage when the fifth difference value belongs to the first interval range; and when the fifth difference value does not belong to the first interval range, drying and judging, drying and cooling are carried out until the operation of the washing machine is finished.
With reference to the first aspect, in a fifth embodiment of the first aspect, the adjusting the waterway control member to cause the drum bottom of the washing machine to accumulate condensed water includes: closing a drain valve to enable condensed water to be accumulated at the bottom of the drum of the washing machine; and/or, opening a flushing valve to enable condensed water to be accumulated at the bottom of the drum of the washing machine.
With reference to the third embodiment of the first aspect, in a sixth embodiment of the first aspect, the third threshold is greater than the first threshold; and/or, the first interval range is determined according to the load amount of the clothes in the washing machine, the volume of the drum and the temperature rising time of the drying temperature rising.
According to a second aspect, an embodiment of the present invention further provides a control apparatus for a drying process of a washing machine, including a processing module, an obtaining module and a determining module; after the washing machine enters a drying and judging stage, the processing module is used for adjusting the waterway control element to enable the bottom of the drum of the washing machine to accumulate condensed water; after the waterway control element is adjusted for a preset first time period, the acquisition module is used for respectively acquiring a first temperature at the bottom of the roller and a second temperature in the roller; the judgment module is used for calculating a first difference value between the first temperature and the second temperature, and when the first difference value is larger than or equal to a preset first threshold value, judging that condensed water enters the roller and reversely adjusting the waterway control element.
According to a third aspect, an embodiment of the present invention further provides a washing machine, including a water path control element, a first temperature detection device, a second temperature detection device, a memory, and a processor, where the water path control element is used to control the on/off of a water path of the washing machine; the first temperature detection device is used for acquiring the temperature of the bottom of the roller; the second temperature detection device is used for acquiring the temperature inside the roller; the water path control element, the first temperature detection device, the second temperature detection device, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the control method of the drying process of the washing machine according to the first aspect or any embodiment of the first aspect.
The technical scheme of the invention has the following advantages:
according to the drying control method of the washing machine provided by the embodiment of the invention, after the washing machine enters the drying judging stage, the first temperature of the bottom of the drum is reduced and the second temperature in the drum is basically unchanged by adjusting the water path control element to enable the condensed water accumulated at the bottom of the drum of the washing machine to accumulate, so that whether the condensed water exists in the drying process can be determined by judging the difference value between the first temperature and the second temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart illustrating a control method of a washing machine according to embodiment 1 of the present invention;
fig. 2 is a flowchart illustrating a drying control method of a washing machine in example 1 of embodiment 1 of the present invention;
fig. 3 is a flowchart illustrating a drying control method of a washing machine in example 2 of embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a drying control device of a washing machine in embodiment 2 of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In describing the present invention, it is noted that the term "and/or" as used in this specification and the appended claims refers to and includes any and all combinations of one or more of the associated listed items.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment 1 of the invention provides a control method for a drying process of a washing machine. Fig. 1 is a schematic flowchart of a method for controlling a drying process of a washing machine in embodiment 1 of the present invention, and as shown in fig. 1, the method for controlling a drying process of a washing machine in embodiment 1 of the present invention includes the steps of:
s101: after the washing machine enters a drying and judging stage, the waterway control element is adjusted to enable the bottom of the drum of the washing machine to accumulate condensed water.
At present, two situations of common drying processes are as follows:
the first method comprises the following steps: drying and dehydrating → drying and weighing → drying and heating → drying and judging → drying and cooling → finishing;
and the second method comprises the following steps: drying and heating → drying and dewatering → drying and weighing → drying and judging → drying and cooling → ending.
Specifically, the drying and dehydrating process is to perform primary dehydration in the drying process to reduce the moisture content of the clothes and improve the efficiency.
The drying temperature rise refers to heating the clothes before the drying judgment process (stable dehumidification stage) begins, and at the moment, condensed water is not fed, so that the efficiency is improved and the energy is saved.
The drying judgment refers to that the clothes are dehumidified by utilizing condensed water, and the clothes condition is detected to judge whether the clothes are dry or not.
In embodiment 1 of the present invention, the waterway control member does not include a condensation valve.
As a specific implementation mode, the following schemes can be adopted for adjusting the waterway control element to enable the drum bottom of the washing machine to accumulate condensed water: (1) closing a drain valve to enable condensed water to be accumulated at the bottom of the drum of the washing machine; (2) opening a flushing valve to enable condensed water to be accumulated at the bottom of a drum of the washing machine; (3) and simultaneously closing the drain valve and opening the flushing valve to enable condensed water to be accumulated at the bottom of the drum of the clothes machine.
In embodiment 1 of the present invention, the drain valve functions to drain water in the washing machine; the function of the flushing valve is used for flushing the condensation air duct. Specifically, the condensation air duct has a condensation function, but can be blocked by the flocks, and the use needs to open the flushing valve to flush the flocks.
S102: after adjusting the waterway control element for a preset first time period, respectively acquiring a first temperature G1 at the bottom of the drum and a second temperature G2 at the inside of the drum.
Specifically, a first temperature of the bottom of the roller is obtained through a water and electricity heating temperature sensing bulb which is arranged near water and electricity heating and at the bottommost part of the roller; and acquiring a second temperature inside the roller through a temperature sensing bulb inside the roller.
Specifically, the first time period may be determined according to a time that condensed water accumulated at the bottom of the drum of the washing machine after the waterway control element is adjusted does not flow into the inner drum and does not flow into the electric heating bulb. In the example, taking a clean series/smart platinum series 10kg washing and drying machine as an example, the flow rate of a condensing valve is 0.35L/min, the outer cylinder starts to feed water, and when the liquid level just contacts the inner cylinder, 2.7L of water needs to be fed; when the liquid level just does not cover the water electric heating temperature sensing bulb, 0.25L of water needs to be fed; the time corresponding to 0.25L-2.7L is about 42S-460S, the first time period is generally about 10S-400S in consideration of the model and volume, and preferably, the first time period may be about 10S-60S.
And S103, calculating a first difference value between the first temperature G1 and the second temperature G2, judging that condensed water enters the roller when the first difference value is greater than or equal to a preset first threshold value, and reversely adjusting the water path control element.
This is because the first temperature G1 at the bottom of the drum and the second temperature G2 at the inside of the drum are close to or equal when the washing and drying machine is operated to the drying judging stage. Under the condition that condensed water exists, the condensed water can be accumulated at the bottom of the roller and does not pass through the water inductance temperature bulb after the drain valve is closed, so that the temperature of the water and electricity temperature bulb is reduced; and open the flushometer and directly drench on the water and electricity temperature sensing package of cylinder bottom behind the comdenstion water that can make, consequently close the drain valve and/or open the flushometer and all can make the temperature reduction of cylinder bottom water and electricity temperature sensing package, simultaneously because the amount of wind is stable, the rotary drum is fast low, the clothing state is stable, dehumidification efficiency and vapor's production has reached stable state, so close the drain valve and/or open the temperature that the flushometer all can not make the inside temperature sensing package of cylinder and great fluctuation appears. Under the condition that does not have the comdenstion water, because do not have the comdenstion water, so close the drain valve and/or open the temperature that the flush valve does not all can not make drum bottom water electricity temperature sensing package and reduce, consequently close the temperature of water electricity temperature sensing package around the drain valve through the comparison drum bottom and just can judge whether there is the comdenstion water.
It should be noted that, when the scheme of closing the drain valve is adopted, although the temperature of the condensed water is already raised when the condensed water flows through the condensing air duct (the condensing air duct is outside the drum), the temperature of the condensed water after flowing through the condensing air duct is still lower than the temperature of the damp and hot air, that is, the temperature of the inside of the drum, although the damp and hot air is in the condensing air duct and the moisture is very large.
Similarly, because the flow of flushometer is bigger, the moist hot-air of condensation wind channel the inside can be ignored to the heating of its flushometer outflow water, and the cooling of water and electricity heating temperature sensing package is faster, and the range is bigger. Through the scheme, the phenomenon that the water faucet is not opened and the water temperature is too high can be judged, drying is not influenced, the damage condition of the condensation valve can not be judged, and the reliability of the water valve with small flow is still good.
It should be noted that the water inlet of the flush valve is generally located at the top end of the condensation air duct and near the water inlet of the condensation valve, and after drying is completed, other modes are generally operated, such as rinsing, and the condensation air duct is flushed by opening when water enters, so that lint accumulation is prevented. The flow rate of the flushing valve is relatively large, generally above 5L/min, and mostly 7-10L/min. The flow rate of the condensing valve is much smaller, and is generally below 0.5L/min.
Specifically, the first threshold value is a positive value.
As another specific implementation, when the first difference is smaller than the first threshold, drying, warming and drying dehydration are performed after the waterway control element is reversely adjusted; after the drying temperature rise and the drying dehydration are carried out, the waterway control element is adjusted, and a third temperature at the bottom of the roller and a fourth temperature in the roller are obtained after a second time period preset by the waterway control element is adjusted; calculating a second difference between the third temperature and the fourth temperature; when the second difference is larger than or equal to the first threshold value, judging that condensed water enters the roller, and reversely adjusting the waterway control element; and when the second difference is smaller than the first threshold value, judging that the condensed water does not enter the drum, and sending a prompt message of the fault operation of the washing machine. The secondary judgment is to prevent misjudgment, the temperature detection of the temperature sensing bulb has errors, the third detection is not carried out because the drying efficiency is influenced during each detection, the detection times are increased, the time is increased, and the experience is influenced.
For example, the second time period is the same as the first time period.
Further, after the reverse adjustment of the waterway control element, the method further comprises: acquiring a laundry load amount in the washing machine; when the clothes load is greater than or equal to a preset second threshold value, when the drying judgment operation reaches a preset third time length (for example, greater than or equal to half of the total drying program time length), adjusting the waterway control element; respectively acquiring a fifth temperature at the bottom of the drum of the washing machine and a sixth temperature inside the drum after adjusting a third time period preset by the waterway control element; calculating a third difference between the fifth temperature and the sixth temperature; when the third difference value is larger than or equal to a preset third threshold value, judging that condensed water enters the roller, and performing reverse adjustment on the waterway control element; and when the third difference value is smaller than the third threshold value, judging that the condensed water does not enter the drum, and sending a prompt message of the fault operation of the washing machine. This is because, since the multi-load (laundry) drying time period may be relatively long, and there may be a possibility that water is stopped halfway in the operation, whether to detect again is determined according to the expected operation time period, such as: assuming that 10kg of clothes is expected to run for 5 hours, a judgment is made again in the middle of the run. Assuming that 3kg is expected to run for 1h, no further testing is performed. The embodiment of the invention carries out detection once in the midway, so as to prevent water from being stopped in the midway or other accidents. For example, the second threshold may be half of the drying rated capacity.
Illustratively, the third time period is the same as the first time period.
Specifically, the third threshold is a positive value and is greater than the first threshold. The third threshold value is different from the first threshold value in consideration of the inaccurate weighing condition, and if the laundry is close to dry in the past half time, the temperature of the bottom of the drum is reduced, but the temperature of the inside of the drum is not changed or is increased even in the normal state. That is, the temperature in the drum is either constant or increases as the laundry approaches dryness or has already dried. The water and electricity heating temperature sensing bulb normally has temperature drop because the dehumidifying capacity of condensed water is larger than the generation of water vapor.
As a further embodiment, before adjusting the waterway control element to enable the washing machine drum bottom to accumulate condensed water, the method further comprises the following steps: respectively acquiring a seventh temperature at the bottom of the roller and an eighth temperature inside the roller after drying, heating or drying and dewatering; and calculating a fourth difference value between the seventh temperature and the eighth temperature, and judging that the washing machine enters a drying and judging stage when the fourth difference value belongs to a preset first interval range (for example, +/-5 ℃, preferably +/-3 ℃).
Further, when the fourth difference value does not belong to the preset first interval range, continuing to perform drying and heating and drying and dehydrating, and respectively acquiring a ninth temperature at the bottom of the roller and a tenth temperature inside the roller after continuing to perform drying and heating and drying and dehydrating; calculating a fifth difference value between the ninth temperature and the tenth temperature, and judging that the washing machine enters a drying and judging stage when the fifth difference value belongs to the first interval range; and when the fifth difference value does not belong to the first interval range, drying and judging, drying and cooling are carried out until the operation of the washing machine is finished.
In order to explain the drying control method of the washing machine according to embodiment 1 of the present invention in detail, the following two examples are given. Fig. 2 is a flowchart illustrating a drying control method of a washing machine in example 1 of embodiment 1 of the present invention, and as shown in fig. 2, the drying control method of the washing machine in example 1 of embodiment 1 of the present invention includes the steps of:
selecting a drying program and running → sequentially entering the processes of drying, dehydrating, drying, heating and the like, detecting G1 and G2 numerical values, wherein the temperature in the outer cylinder is relatively uniform through the processes of dehydrating, heating and the like, and the detected temperatures of the two temperature sensing bags are consistent or close to each other. → first contrast whether the temperatures of the two bulbs are consistent or close. The possibility that the temperatures are inconsistent is large under the normal condition that dehydration is carried out firstly and then temperature rise is carried out secondly, the maximum temperature is 3 ℃ according to the test data of a plurality of current models, but the temperature rise is carried out before dehydration, the temperature difference is basically zero, because the electric heating is not started during dehydration, and meanwhile, the gas in the drum flows when the drum rotates. → entry into option branch 1 is not satisfied and branch 2 is satisfied.
Branch 1: and (5) carrying out low-speed dehydration, drying and temperature rise, and carrying out temperature judgment once again. This is mainly to prevent the inaccurate value of G2 caused by the wrong reading of bulb or the short heating time of very little load, the blockage of the water outlet, etc. If the condition is satisfied, the process returns to the beginning of the branch 2, and the next process is continued. If not, the condensed water fault detection is not carried out, and the drying process is continuously operated until the operation is finished or other faults are reported.
Branch 2: the drain valve is closed, but does not close the comdenstion water, if there is the comdenstion water, the comdenstion water can accumulate this moment and make the cooling of water temperature sensing package in the cylinder bottom, though the comdenstion water flows through the condensation wind channel and has risen temperature, but because of the air that is damp and hot in the condensation wind channel the inside, and the moisture is very big, so after the comdenstion water flows through, the temperature of comdenstion water can rise, but still the temperature of the damp and hot air of low pressure, be less than a section of thick bamboo internal temperature promptly. And → judging that condensed water exists, continuing to operate and dry until half of the set drying time, and detecting the condensed water again. If no condensed water exists, the detection is carried out again to prevent misjudgment. After the situation is determined not to exist, the display panel reports the condensed water fault, namely, no condensed water exists, or the temperature of the condensed water is too high (in the case that a water tap of the washing machine is connected to the hot water end of the water heater), but the operation is still finished continuously in consideration of the user experience.
In fig. 2, G1 represents the temperature of the water-electric heating bulb, G2 represents the temperature of the cylinder bulb, and both G1 and G2 values are average values in time T in consideration of the possibility of inaccurate and fluctuating data monitoring. T is generally within 10-60 s, and the specific time is determined according to the practical conditions such as the flow rate of the condensing valve. The threshold value a is generally less than 5, around 3, depending on the weight of the laundry, in relation to the volume of the drum and the warming-up time. The threshold B is positive, i.e. the temperature of G1 must drop. The difference between the threshold C and the threshold B is to take account of the inaccurate weighing condition, and if the clothes are close to dry after half the time, the temperature of G1 will be reduced even if the clothes are in a normal state, but the temperature of G2 will not be changed or increased, and the general threshold C is larger than the threshold B.
Fig. 3 is a flowchart illustrating a drying control method of a washing machine in example 2 of embodiment 1 of the present invention, and as shown in fig. 3, example 2 is different from example 1 in that a manner of determining whether water is introduced is changed to open a flush valve without closing a drain valve.
Example 2
Embodiment 2 of the invention provides a drying control device of a washing machine. Fig. 4 is a schematic structural diagram of a drying control device of a washing machine in embodiment 2 of the present invention, and as shown in fig. 4, the drying control device of a washing machine in embodiment 2 of the present invention includes a processing module 20, an obtaining module 21, and a determining module 22.
Specifically, the processing module 20 is configured to adjust the water path control element to enable the bottom of the drum of the washing machine to accumulate condensed water after the washing machine enters the drying stage.
The obtaining module 21 is configured to obtain a first temperature of the bottom of the drum and a second temperature of the inside of the drum respectively after adjusting the waterway control element for a preset first time period.
And the judging module 22 is configured to calculate a first difference between the first temperature and the second temperature, determine that condensed water enters the drum when the first difference is greater than or equal to a preset first threshold, and perform reverse adjustment on the waterway control element.
The details of the drying control device of the washing machine can be understood by referring to the corresponding descriptions and effects in the embodiments shown in fig. 1 to fig. 3, and are not described herein again.
Example 3
Embodiments of the present invention also provide a washing machine, which may include a processor and a memory, wherein the processor and the memory may be connected by a bus or in another manner.
The processor may be a Central Processing Unit (CPU). The Processor may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or a combination thereof.
The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the software upgrade control method in the embodiments of the present invention. The processor executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions and modules stored in the memory, that is, the software upgrade control method in the above method embodiment is implemented.
The memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor, and the like. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and such remote memory may be coupled to the processor via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory and, when executed by the processor, perform the software upgrade control method of the embodiment shown in fig. 1-3.
The details of the washing machine can be understood by referring to the corresponding descriptions and effects in the embodiments shown in fig. 1 to 4, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a flash Memory (FlashMemory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. A control method for a drying process of a washing machine is characterized by comprising the following steps:
after the washing machine enters a drying and drying stage, adjusting a waterway control element to enable condensed water to be accumulated at the bottom of a drum of the washing machine;
after adjusting a first time period preset by the waterway control element, respectively obtaining a first temperature at the bottom of the roller and a second temperature in the roller;
calculating a first difference value between the first temperature and the second temperature, and when the first difference value is greater than or equal to a preset first threshold value, judging that condensed water enters the roller and reversely adjusting the waterway control element;
when the first difference is smaller than the first threshold value, drying, heating and drying dehydration are carried out after the waterway control element is reversely adjusted;
after the drying temperature rise and the drying dehydration are carried out, the waterway control element is adjusted, and a third temperature at the bottom of the roller and a fourth temperature in the roller are obtained after a second time period preset by the waterway control element is adjusted;
calculating a second difference between the third temperature and the fourth temperature;
when the second difference is larger than or equal to the first threshold value, judging that condensed water enters the roller, and reversely adjusting the waterway control element;
and when the second difference is smaller than the first threshold value, judging that the condensed water does not enter the drum, and sending a prompt message of the fault operation of the washing machine.
2. The method of claim 1, further comprising, after reversing the adjustment of the waterway control member:
acquiring a laundry load amount in the washing machine;
when the load of the clothes is larger than or equal to a preset second threshold value and the drying judgment operation reaches a preset third time length, adjusting the waterway control element;
respectively acquiring a fifth temperature at the bottom of the drum of the washing machine and a sixth temperature inside the drum after adjusting a third time period preset by the waterway control element;
calculating a third difference between the fifth temperature and the sixth temperature;
when the third difference is greater than or equal to a preset third threshold value, judging that condensed water enters the roller, and reversely adjusting the waterway control element;
and when the third difference is smaller than the third threshold value, judging that the condensed water does not enter the drum, and sending a prompt message of the fault operation of the washing machine.
3. The method of claim 2, further comprising, prior to adjusting the waterway control member to cause condensed water to accumulate at the bottom of the drum of the washing machine:
respectively acquiring a seventh temperature at the bottom of the roller and an eighth temperature inside the roller after drying, heating or drying and dewatering;
and calculating a fourth difference value between the seventh temperature and the eighth temperature, and judging that the washing machine enters a drying and judging stage when the fourth difference value belongs to a preset first interval range.
4. The method of claim 3, further comprising:
when the fourth difference value does not belong to a preset first interval range, continuing to perform drying and temperature rise and drying and dehydrating, and respectively obtaining a ninth temperature at the bottom of the roller and a tenth temperature in the roller after continuing to perform drying and temperature rise and drying and dehydrating;
calculating a fifth difference value between the ninth temperature and the tenth temperature, and judging that the washing machine enters a drying and judging stage when the fifth difference value belongs to the first interval range;
and when the fifth difference value does not belong to the first interval range, drying and judging, drying and cooling are carried out until the operation of the washing machine is finished.
5. The method of claim 1, wherein adjusting the waterway control element to cause the drum bottom of the washing machine to accumulate condensed water comprises:
closing a drain valve to enable condensed water to be accumulated at the bottom of the drum of the washing machine;
and/or, opening a flushing valve to enable condensed water to be accumulated at the bottom of the drum of the washing machine.
6. The method of claim 3, wherein:
the third threshold is greater than the first threshold;
and/or, the first interval range is determined according to the load amount of the clothes in the washing machine, the volume of the drum and the temperature rising time of the drying temperature rising.
7. A control apparatus for a drying process of a washing machine, comprising:
the processing module is used for adjusting the waterway control element to enable the bottom of the drum of the washing machine to accumulate condensed water after the washing machine enters a drying and judging stage;
the acquisition module is used for respectively acquiring a first temperature at the bottom of the roller and a second temperature in the roller after adjusting a first time period preset by the waterway control element;
the judging module is used for calculating a first difference value between the first temperature and the second temperature, judging that condensed water enters the roller when the first difference value is larger than or equal to a preset first threshold value, and reversely adjusting the waterway control element; the judgment module is also used for drying, heating and drying and dehydrating after reversely adjusting the waterway control element when the first difference is smaller than the first threshold;
after the drying temperature rise and the drying dehydration are carried out, the waterway control element is adjusted, and a third temperature at the bottom of the roller and a fourth temperature in the roller are obtained after a second time period preset by the waterway control element is adjusted; calculating a second difference between the third temperature and the fourth temperature; when the second difference value is larger than or equal to the first threshold value, judging that condensed water enters the roller, and reversely adjusting the waterway control element; and when the second difference is smaller than the first threshold value, judging that the condensed water does not enter the drum, and sending a prompt message of the fault operation of the washing machine.
8. A washing machine, characterized by comprising:
the water path control element is used for controlling the on-off of a water path of the washing machine;
the first temperature detection device is used for acquiring the temperature of the bottom of the roller;
a second temperature detection device for acquiring the temperature inside the drum;
a memory and a processor, wherein the waterway control element, the first temperature detection device, the second temperature detection device, the memory and the processor are connected in communication with each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the control method of the drying process of the washing machine according to any one of claims 1 to 6.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions for causing the computer to execute the control method of a drying course of a washing machine of any one of claims 1 to 6.
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