CN112900016A - Washing machine heating control method and washing machine applying same - Google Patents
Washing machine heating control method and washing machine applying same Download PDFInfo
- Publication number
- CN112900016A CN112900016A CN201911227080.3A CN201911227080A CN112900016A CN 112900016 A CN112900016 A CN 112900016A CN 201911227080 A CN201911227080 A CN 201911227080A CN 112900016 A CN112900016 A CN 112900016A
- Authority
- CN
- China
- Prior art keywords
- water
- washing
- preset
- temperature
- washing machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005406 washing Methods 0.000 title claims abstract description 188
- 238000010438 heat treatment Methods 0.000 title claims abstract description 170
- 238000000034 method Methods 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 296
- 230000008859 change Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 13
- 230000007423 decrease Effects 0.000 claims description 10
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 239000003599 detergent Substances 0.000 abstract description 10
- 102000004190 Enzymes Human genes 0.000 description 11
- 108090000790 Enzymes Proteins 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000009467 reduction Effects 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The invention discloses a heating control method of a washing machine and the washing machine using the same. The washing machine is provided with a heating pump which is respectively connected with the top and the bottom of the washing barrel through pipelines, and water in the washing barrel is pumped into the washing barrel to improve the water temperature of the washing barrel after being heated by the heating pump. The control method of the washing machine provided by the invention can be used for controlling the heating power and/or the circulating water quantity to keep the water temperature of the washing barrel in a certain range all the time, is suitable for a detergent with requirements on the use temperature, can avoid scalding clothes, and is suitable for popularization and use.
Description
Technical Field
The invention belongs to the technical field of clothes treatment, and particularly relates to a heating control method of a washing machine and the washing machine using the same.
Background
With the increase of the requirement of consumers for washing clothes, detergents containing active enzymes are more and more accepted by the users, however, the effect of decomposing dirt by the active enzymes at about 40 ℃ is the best. In the actual washing process, the water temperature of the washing machine is greatly influenced by the environment, for example, the water temperature in winter in northern areas of China is low, and the detergent containing active enzyme cannot realize the maximum efficiency.
In contrast, the conventional washing machine often adopts a mode of arranging a heating device in the washing tub to improve the water temperature of the washing tub. However, the regulation capability of the solution to the water temperature of the washing tub is limited, when the temperature reaches the set temperature, the heating device needs to be turned off, and when the external environment temperature is low, the water temperature of the washing tub drops too fast, so that the heating device needs to be turned on repeatedly, frequent starting and stopping increases the load of the electric circuit, and the water temperature with large threshold value change cannot make the active enzyme play the best role.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a heating control method of a washing machine, wherein a water body in a washing barrel of the washing machine circularly flows after being heated by a heating pump, and the washing machine controls the heating power and the circulating water quantity of the heating pump according to the change of the water temperature, so that the water temperature of the washing barrel is always maintained in a preset temperature range, and the accuracy of water temperature control is improved.
In order to solve the technical problems, the invention adopts the technical scheme that:
the invention provides a heating control method of a washing machine, wherein the washing machine heats a water body circularly flowing in a washing barrel, and adjusts heating power and circulating water quantity according to the change of water temperature in the washing barrel so as to maintain the water temperature in the washing barrel within a preset temperature range.
In the above scheme, in the control method of the invention, the water temperature is adjusted by adjusting the heating power of the heating module, and compared with the scheme of frequently switching the heater according to the change of the water temperature in the prior art, the trend of the water temperature reduction can be slowed down. When the external environment temperature of the washing machine is low, the water temperature is reduced rapidly after the heater is turned off in the traditional method, the heater is turned on again when the temperature reaches the low limit, and the efficiency of the detergent containing active enzyme is reduced because the water temperature cannot be adjusted back to the preset range in a short time due to the rapid water temperature reduction. The technical scheme of the invention gradually reduces the heating power to the circulating water body, and the heating power is still carried out after being reduced, so that the water temperature can not be reduced in a short time. On the basis of adjusting the heating power, the control method can further adjust the circulating water quantity, and the water temperature can be accurately controlled within a preset range by combining two adjusting modes in any washing program. The washing program comprises water programs such as washing, rinsing, daily bath washing and the like.
According to the heating control method, the preset temperature range comprises a preset maximum value, a preset intermediate value and a preset minimum value, and when the water temperature of the washing tub reaches the preset intermediate value, the washing machine reduces the heating power to ensure that the water temperature of the washing tub does not exceed the preset temperature range within a preset time period of any washing program.
In the above scheme, the preset temperature range takes the preset intermediate value as the standard water temperature, the preset maximum value and the preset minimum value correspond to the highest value and the lowest value of the water temperature range, and when the water temperature of the washing tub is obtained through the temperature sensor and judged, the heating power is adjusted according to the judgment standard that whether the water temperature reaches the standard water temperature, namely the preset intermediate value. When the standard water temperature is reached, the washing machine controls the heating power to be reduced, and in a heating state, the trend of rising/reducing the water temperature is slowed down so as to control the temperature range.
According to the heating control method, when the water temperature of the washing barrel exceeds the preset temperature range within the preset time period of any washing program, the washing machine firstly adjusts the circulating water quantity, and if the water temperature can not return to the preset temperature range, the heating power is further adjusted.
In the above scheme, the water body is still in the heating state along with the reduction of the heating power, but the water temperature may gradually exceed the preset temperature range in the reduction process of the heating power according to the difference of the environmental temperature and the operation parameters of the washing program. The invention aims at the problem and further improves the regulation of the circulating water quantity. Because the washing machine only heats the water entering the circulating pipeline, the size or the frequency of the circulating water quantity is controlled, and the water temperature of the washing barrel can be controlled to a certain extent.
According to the heating control method, when the water temperature of the washing tub exceeds a preset maximum value within the preset time period, the washing machine reduces the amount of circulating water in the washing tub to control the water temperature within a preset temperature range.
In the above scheme, specifically, the circulating water is heated by the washing machine and then injected into the washing tub again, when the temperature rises to a preset maximum value, the heated circulating water amount can be reduced, and the amount of the heated water returned into the washing tub is reduced, so that the trend of temperature rise can be effectively slowed down.
According to the above heating control method, when the temperature of the water in the tub exceeds a preset maximum value within the preset time period, the washing machine reduces the amount of circulating water in the tub and simultaneously increases the rate of decrease of the heating power to control the temperature of the water within a preset temperature range.
In the above scheme, the circulating water is heated by the washing machine and then injected into the washing tub again, when the temperature rises to the preset maximum value, the washing machine reduces the heated circulating water amount, but at the moment, the heating power is still at a higher level, so that the heating power can be further reduced. Specifically, the reduction rate of the heating power can be increased, the heating power is reduced more obviously, the problem of the circulating water body can be further reduced by lower heating power, and the trend of temperature rise can be effectively slowed down under the synergistic effect of lower circulating water quantity.
According to the heating control method, after the circulating water quantity is reduced, whether the water temperature of the washing barrel is lower than a preset minimum value in the preset time period is judged, if yes, the circulating water quantity is recovered, and the heating power is continuously adjusted according to the change condition of the water temperature; if not, maintaining the reduced circulating water quantity; preferably, if the washing machine increases the rate of decrease of the heating power before the temperature of the water in the tub is below a preset minimum value, the rate of decrease is adjusted to be low.
In the above scheme, because the circulating water amount is reduced, the trend of water temperature reduction becomes obvious, at the moment, the minimum value of the preset temperature range needs to be monitored, when the water temperature reaches or is lower than the preset minimum value, the circulating water amount is firstly increased, the supply of heated circulating water is increased, so that the overall water temperature in the washing barrel is increased, then the water temperature is monitored, and the mode of adjusting the heating power is assisted, so that the water temperature is always controlled in the set temperature range. If the heating power is reduced while the circulating water amount is reduced, when the water temperature reaches or is lower than the preset minimum value, the circulating water amount is recovered, and the heating power is required to be correspondingly increased so as to avoid that the water temperature is continuously lower than the preset temperature range.
According to the heating control method, after the circulating water quantity is recovered, the washing machine takes a shorter detection time period in the preset time period, and judges whether the water temperature of the washing barrel is higher than a preset minimum value in the detection time period, if so, the current heating power and the circulating water quantity are maintained, otherwise, the heating power is increased, the judgment is returned to judge whether the water temperature of the washing barrel reaches a preset intermediate value, and the washing machine repeatedly executes the subsequent steps according to the judgment result.
In the above scheme, after the water temperature probes the bottom and recovers the circulating water amount, the washing program runs for a period of time, and in order to ensure the stability of the subsequent temperature control in the washing process, the water temperature of the washing tub recovering the circulating water amount is detected in a short detection time period, if the water temperature cannot exceed the preset minimum value in the detection time period, a mode of improving the heating power is needed, the water temperature is raised to the preset temperature range, the water temperature is monitored in real time, and the previous heating logic is repeatedly executed when the water temperature exceeds the preset intermediate value. And when the water temperature is higher than the preset minimum value in the detection time period, maintaining the current heating power and the current circulating water amount, and returning to execute the step of judging the preset intermediate value of the water temperature.
According to the above heating control method, the circulating water body in the control method includes a continuous circulating flow or an intermittent circulating flow, the continuous circulating flow includes returning the water body pumped out of the washing tub to the washing tub at a flow rate for a preset time period of any one washing process, and the intermittent circulating flow includes returning the water body pumped out of the washing tub to the washing tub at a frequency and a flow rate for a preset time period of any one washing process.
In the above scheme, for different washing procedures, the water body circulation has multiple modes, including continuous circulation flow in which the heating pump continuously operates, and intermittent circulation flow in which the heating pump intermittently operates.
According to the heating control method, when the water body continuously and circularly flows, the washing machine adjusts the circulating water quantity by adjusting the water flow in a preset time period of any washing program; when the water body intermittently and circularly flows, the washing machine adjusts the circulating water quantity by adjusting the circulating operation frequency and/or the water flow in the preset time period of any washing program.
In the above scheme, in the water circulation process of two different modes, the regulation methods of the circulating water amount are different. The purpose is to adjust the amount of circulating water sent back to the washing tub in unit time, but the difference is that the adjustment is realized by changing the flow rate in the continuous circulating flow; in the intermittent circulation flow, since the heat pump is circulated at a certain frequency per unit time, the circulation operation frequency and/or the flow rate can be adjusted.
According to the above heating control method, the reducing the heating power includes: the washing machine continuously reduces the heating power at a set descending rate starting from the rated heating power.
In the above solution, the reducing the heating power may be a dynamic process. When the heating power is selected to be reduced to a fixed value (i.e. a static process), since the heating process is always performed, the trend of temperature rise may not be slowed down, so that the water temperature exceeds the preset upper temperature limit, and thus the detergent containing the active enzyme is inactivated, and the activity of the inactivated active enzyme detergent cannot be recovered after the temperature is reduced. Therefore, the trend of temperature rise needs to be strictly limited, so the invention adopts a scheme of dynamically reducing the heating power, namely, continuously reducing the heating power of the heating pump at a certain descending rate. When the heating power in the control method is adjusted, a mode of adjusting the rising or falling rate can be adopted to avoid uncontrollable temperature change caused by setting a fixed value of the heating power.
The invention also provides a washing machine, which is provided with a heating pump 1 respectively connected with the top and the bottom of a washing barrel 3 through a pipeline 2, and water in the washing barrel 3 is heated by the heating pump 1 and then is pumped back into the washing barrel 3 to improve the water temperature.
In the scheme, the water inlet of the heating pump is connected with the internal circulation interface at the bottom of the outer barrel, the water outlet of the heating pump is connected with the circulating pipe, and the other end of the circulating pipe is connected with the internal circulation interface on the outer barrel cover. The water in the inner barrel body flows into the heating pump, is heated and flows through the inner circulating pipe to be pumped to the inner circulating interface outside the outer barrel opening part, the heated water is mixed with the unheated water in the inner barrel body, the temperature of the washing water in the inner barrel body is slightly raised, and the washing water continues to be heated by the heating pump and circulates back to the inner barrel.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. In the heating control method provided by the invention, the washing machine combines the schemes of adjusting heating power and circulating water quantity, so that the trend of too fast temperature rise/fall can be effectively slowed down, and the water temperature is accurately controlled within a set range;
2. in the heating control method provided by the invention, the trend of temperature rise is strictly limited by dynamically adjusting the heating power, so that the water temperature adjusting mode of subsequent combination with the circulating water quantity is more efficient while the inactivation of the active enzyme detergent is avoided;
3. in the heating control method provided by the invention, the washing machine adjusts the flow and/or the running frequency of the circulating water body, so that the adjustment of the circulating water volume is realized, the flexibility for different washing programs is realized, and the water temperature change of the washing barrel is buffered by utilizing the circulating volume of the water body.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic flow chart of the method of example 1 of the present invention;
FIG. 2 is a schematic flow chart of the method of example 2 of the present invention;
FIG. 3 is a schematic flow chart of the method of example 3 of the present invention;
fig. 4 is a schematic structural view of a washing machine according to embodiment 4 of the present invention.
In the figure: 1-heating pump, 2-pipeline, 3-washing barrel.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, the present invention provides a heating control method for a washing machine, in which a water body in a washing tub of the washing machine is heated by a heating pump and then circularly flows, and the washing machine controls a heating power and a circulating water amount of the heating pump according to a change of a water temperature, so that the water temperature of the washing tub is always maintained within a preset temperature range, and accuracy of water temperature control is improved.
Example 1
In this embodiment, as shown in fig. 1, a heating control method for a washing machine is provided, in which the washing machine heats a water body circulating in a washing tub, and adjusts a heating power and a circulating water amount according to a change of a water temperature in the washing tub, so as to maintain the water temperature in the washing tub within a preset temperature range.
In this embodiment, adjust the temperature of water through the mode of adjusting heating module heating power, compare among the prior art according to the scheme of the frequent switch heater of temperature change, can slow down the trend that the temperature of water descends. When the external environment temperature of the washing machine is low, the water temperature is reduced rapidly after the heater is turned off in the traditional method, the heater is turned on again when the temperature reaches the low limit, and the efficiency of the detergent containing active enzyme is reduced because the water temperature cannot be adjusted back to the preset range in a short time due to the rapid water temperature reduction. The technical scheme of the invention gradually reduces the heating power to the circulating water body, and the heating power is still carried out after being reduced, so that the water temperature can not be reduced in a short time. On the basis of adjusting the heating power, the control method can further adjust the circulating water quantity, and the water temperature can be accurately controlled within a preset range by combining two adjusting modes in any washing program.
In this embodiment, the preset temperature range includes a preset maximum value, a preset intermediate value and a preset minimum value, and when the water temperature of the washing tub reaches the preset intermediate value, the washing machine reduces the heating power to prevent the water temperature of the washing tub from exceeding the preset temperature range within a preset time period of any washing program.
In this embodiment, the preset temperature range takes the preset intermediate value as the standard water temperature, and the preset maximum value and the preset minimum value correspond to the maximum value and the minimum value of the water temperature range, and when the water temperature of the washing tub is obtained through the temperature sensor and is judged, the heating power is adjusted according to the judgment standard that whether the water temperature reaches the standard water temperature, that is, the preset intermediate value. When the standard water temperature is reached, the washing machine controls the heating power to be reduced, and in a heating state, the trend of rising/reducing the water temperature is slowed down so as to control the temperature range.
In this embodiment, when the water temperature of the washing tub exceeds the preset temperature range within a preset time period of any washing program, the washing machine firstly adjusts the circulating water amount, and if the water temperature cannot return to the preset temperature range, the heating power is further adjusted.
In this embodiment, the water is still in a heating state as the heating power decreases, but the water temperature may gradually exceed the preset temperature range in the decreasing process of the heating power according to the difference between the ambient temperature and the operation parameters of the washing program. The invention aims at the problem and further improves the regulation of the circulating water quantity. Because the washing machine only heats the water entering the circulating pipeline, the size or the frequency of the circulating water quantity is controlled, and the water temperature of the washing barrel can be controlled to a certain extent.
In this embodiment, the circulating the water body in the control method includes a continuous circulating flow or an intermittent circulating flow, the continuous circulating flow includes returning the water body pumped out of the washing tub to the washing tub at a flow rate for a preset time period of any one washing process, and the intermittent circulating flow includes returning the water body pumped out of the washing tub to the washing tub at a frequency and a flow rate for a preset time period of any one washing process.
In this embodiment, the water circulation has a plurality of modes for different washing procedures, including a continuous circulation flow in which the heating pump operates continuously, and an intermittent circulation flow in which the heating pump operates intermittently.
In the embodiment, when the water body continuously and circularly flows, the washing machine adjusts the circulating water quantity by adjusting the water flow in the preset time period of any washing program; when the water body intermittently and circularly flows, the washing machine adjusts the circulating water quantity by adjusting the circulating operation frequency and/or the water flow in the preset time period of any washing program.
In this embodiment, in the water circulation process of two different modes, the adjustment method of the circulating water amount is also different. The purpose is to adjust the amount of circulating water sent back to the washing tub in unit time, but the difference is that the adjustment is realized by changing the flow rate in the continuous circulating flow; in the intermittent circulation flow, since the heat pump is circulated at a certain frequency per unit time, the circulation operation frequency and/or the flow rate can be adjusted.
In this embodiment, the reducing the heating power includes: the washing machine continuously reduces the heating power at a set descending rate starting from the rated heating power.
In this embodiment, the reducing the heating power may be a dynamic process. When the heating power is selected to be reduced to a fixed value (i.e. a static process), since the heating process is always performed, the trend of temperature rise may not be slowed down, so that the water temperature exceeds the preset upper temperature limit, and thus the detergent containing the active enzyme is inactivated, and the activity of the inactivated active enzyme detergent cannot be recovered after the temperature is reduced. Therefore, the trend of temperature rise needs to be strictly limited, so the invention adopts a scheme of dynamically reducing the heating power, namely, continuously reducing the heating power of the heating pump at a certain descending rate. When the heating power in the control method is adjusted, a mode of adjusting the rising or falling rate can be adopted to avoid uncontrollable temperature change caused by setting a fixed value of the heating power.
The specific heating logic process of this embodiment is as follows:
s101, starting a washing program, feeding water to a set water level, and then executing a step S102;
s102, starting a circulating pump, heating the water body at rated heating power, and then executing the step S103;
s103, judging whether the water temperature of the washing barrel reaches a preset intermediate value, if so, executing a step S104, otherwise, executing a step S102;
s104, reducing the heating power, and then executing the step S105;
s105, judging whether the temperature exceeds a preset temperature range within a preset time period, if so, executing a step S106, otherwise, executing a step S107;
s106, adjusting heating power and/or circulating water quantity, and then executing the step S103;
s107, the heating is stopped after the washing program is finished.
Example 2
The embodiment is a further improvement of the step of determining whether the water temperature in the preset time period exceeds the preset temperature range on the basis of the embodiment 1, and the method includes:
in this embodiment, as shown in fig. 2, when the temperature of the water in the washing tub exceeds a preset maximum value within the preset time period, the washing machine reduces the amount of the circulating water in the washing tub to control the temperature of the water within a preset temperature range.
In this embodiment, specifically, the circulating water is heated by the washing machine and then re-injected into the washing tub, when the temperature rises to a preset maximum value, the amount of heated circulating water can be reduced, and the amount of heated water returned to the washing tub decreases, so that the trend of temperature rise can be effectively slowed down.
In this embodiment, when the temperature of the water in the washing tub exceeds the preset maximum value within the preset time period, the washing machine reduces the amount of the circulating water in the washing tub and simultaneously increases the decreasing rate of the heating power to control the temperature of the water within the preset temperature range (this scheme is not shown in fig. 2).
In this embodiment, the circulating water is heated by the washing machine and then re-injected into the washing tub, and when the temperature rises to a preset maximum value, the washing machine reduces the heated circulating water amount, but at this time, the heating power is still at a higher level, so that the heating power can be further reduced. Specifically, the reduction rate of the heating power can be increased, the heating power is reduced more obviously, the problem of the circulating water body can be further reduced by lower heating power, and the trend of temperature rise can be effectively slowed down under the synergistic effect of lower circulating water quantity.
In this embodiment, after the circulating water amount is reduced, whether the water temperature of the washing tub is lower than a preset minimum value within the preset time period is judged, if yes, the circulating water amount is recovered, and the heating power is continuously adjusted according to the change condition of the water temperature; if not, maintaining the reduced circulating water quantity; preferably, if the washing machine increases the rate of decrease of the heating power before the temperature of the water in the tub is below a preset minimum value, the rate of decrease is adjusted to be low.
In this embodiment, since the circulating water amount is reduced, the trend of the water temperature decrease becomes obvious, and at this time, the minimum value of the preset temperature range needs to be monitored, when the water temperature reaches or is lower than the preset minimum value, the circulating water amount is firstly increased, the supply of heated circulating water is increased to increase the overall water temperature in the washing tub, and then the water temperature is monitored, and the water temperature is always controlled within the set temperature range by adjusting the heating power. If the heating power is reduced while the circulating water amount is reduced, when the water temperature reaches or is lower than the preset minimum value, the circulating water amount is recovered, and the heating power is required to be correspondingly increased so as to avoid that the water temperature is continuously lower than the preset temperature range.
The specific heating logic process of this embodiment is as follows:
s201, starting a washing program, feeding water to a set water level, starting circulating water, and then executing a step S202;
s202, heating the water body at rated heating power, and then executing the step S203;
s203, judging whether the water temperature of the washing barrel reaches a preset intermediate value, if so, executing a step S204, otherwise, executing a step S202;
s204, reducing the heating power, and then executing the step S205;
s205, judging whether the water temperature reaches or is higher than a preset maximum value in a preset time period, if so, executing a step S206, and if not, executing a step S207;
s206, reducing the circulating water amount, and then executing the step S207;
s207, judging whether the water temperature reaches or is lower than a preset minimum value in a preset time period, if so, executing a step S209, and if not, executing a step S208;
s208, maintaining the reduced circulating water quantity, and then executing the step S207;
s209, recovering the circulating water quantity, and then executing the step S210;
s210, continuously adjusting the heating power according to the water temperature change condition, and then executing the step S203.
The other implementation methods of this example are the same as those of example 1.
Example 3
The embodiment is a further improvement of the step of adjusting the heating power according to the change of the water temperature based on the embodiment 2, and comprises the following steps:
in this embodiment, as shown in fig. 3, after the circulating water amount is recovered, the washing machine takes a shorter detection time period within the preset time period, and determines whether the water temperature of the washing tub is higher than a preset minimum value within the detection time period, if so, the current heating power and the circulating water amount are maintained, otherwise, the heating power is increased, the washing machine returns to determine whether the water temperature of the washing tub reaches a preset intermediate value, and the washing machine repeatedly executes subsequent steps according to the determination result.
In this embodiment, after the water temperature is detected and the circulating water amount is recovered, the washing program has been run for a certain time, and in order to ensure the stability of the subsequent temperature control in the washing process, the water temperature of the washing tub for recovering the circulating water amount is detected within a short detection time period, if the water temperature cannot exceed the preset minimum value in the detection time period, the water temperature needs to be raised to the preset temperature range by increasing the heating power, the water temperature is monitored in real time, and the previous heating logic is repeatedly executed when the water temperature exceeds the preset intermediate value. And when the water temperature is higher than the preset minimum value in the detection time period, maintaining the current heating power and the current circulating water amount, and returning to execute the step of judging the preset intermediate value of the water temperature.
The specific heating logic process of this embodiment is as follows:
s301, starting a washing program, feeding water to a set water level, starting circulating water, and then executing a step S302;
s302, heating the water body with rated heating power, and then executing the step S303;
s303, judging whether the water temperature of the washing barrel reaches a preset intermediate value, if so, executing a step S304, otherwise, executing a step S302;
s304, reducing the heating power, and then executing the step S305;
s305, judging whether the water temperature reaches or is higher than a preset maximum value within a preset time period, if so, executing a step S306, and if not, executing a step S307;
s306, reducing the circulating water amount, and then executing the step S307;
s307, judging whether the water temperature reaches or is lower than a preset minimum value in a preset time period, if so, executing a step S309, and if not, executing a step S308;
s308, maintaining the reduced circulating water quantity, and then executing the step S307;
s309, recovering the circulating water quantity, and then executing the step S310;
s310, judging whether the water temperature is higher than a preset minimum value in a detection time period, if so, executing a step S311, otherwise, executing a step S312;
s311, maintaining the current heating power and the circulating water quantity, and then executing the step S303;
s312, increasing the heating power, and then executing the step S303.
The other implementation method of this embodiment is the same as embodiment 2.
Example 4
In this embodiment, as shown in fig. 4, a washing machine is provided with a heat pump 1 connected to the top and bottom of a washing tub 3 through pipes 2, and a water body in the washing tub 3 is heated by the heat pump 1 and then pumped back into the washing tub 3 to raise the water temperature.
In this embodiment, a water inlet of the heating pump is connected with an internal circulation interface at the bottom of the outer barrel, a water outlet of the heating pump is connected with a circulating pipe, and the other end of the circulating pipe is connected with the internal circulation interface on the outer barrel cover. The water in the inner barrel body flows into the heating pump, is heated and flows through the inner circulating pipe to be pumped to the inner circulating interface outside the outer barrel opening part, the heated water is mixed with the unheated water in the inner barrel body, the temperature of the washing water in the inner barrel body is slightly raised, and the washing water continues to be heated by the heating pump and circulates back to the inner barrel.
The washing machine provided by the embodiment is applied to the heating control method as in any one of embodiments 1 to 3.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A heating control method of a washing machine is characterized in that the washing machine heats a water body circularly flowing in a washing barrel, and adjusts heating power and circulating water quantity according to the change of water temperature in the washing barrel so as to maintain the water temperature in the washing barrel within a preset temperature range.
2. The heating control method of a washing machine as claimed in claim 1, wherein the preset temperature range includes a preset maximum value, a preset intermediate value and a preset minimum value, and when the temperature of the tub water reaches the preset intermediate value, the washing machine reduces the heating power such that the temperature of the tub water does not exceed the preset temperature range for a preset time period of any washing course.
3. The heating control method of a washing machine as claimed in claim 2, wherein when the temperature of the water in the tub exceeds the preset temperature range within a preset time period of any washing process, the washing machine first adjusts the amount of the circulating water, and further adjusts the heating power if the temperature of the water cannot return to the preset temperature range.
4. The heating control method of a washing machine as claimed in claim 3, wherein when the temperature of the water in the tub exceeds a preset maximum value for the preset time period, the washing machine reduces the amount of the circulating water in the tub to control the temperature of the water within a preset temperature range.
5. The heating control method of a washing machine as claimed in claim 3, wherein when the temperature of the water in the tub exceeds a preset maximum value for the preset time period, the washing machine reduces the amount of circulating water in the tub while increasing a decreasing rate of the heating power to control the temperature of the water within a preset temperature range.
6. The heating control method of the washing machine as claimed in claim 4 or 5, wherein after the circulating water amount is adjusted down, judging whether the temperature of the water in the washing tub is lower than a preset minimum value within the preset time period, if so, recovering the circulating water amount, and continuing to adjust the heating power according to the change condition of the water temperature; if not, maintaining the reduced circulating water quantity;
preferably, if the washing machine increases the rate of decrease of the heating power before the temperature of the water in the tub is below a preset minimum value, the rate of decrease is adjusted to be low.
7. The heating control method of the washing machine as claimed in claim 6, wherein after the circulation water amount is recovered, the washing machine takes a shorter detection time period within the preset time period, and judges whether the water temperature of the washing tub is higher than a preset minimum value within the detection time period, if so, the current heating power and the circulation water amount are maintained, if not, the heating power is increased, the heating control method returns to judge whether the water temperature of the washing tub reaches a preset intermediate value, and the washing machine repeatedly performs the subsequent steps according to the judgment result.
8. The heating control method of a washing machine according to claim 5, wherein the circulating water body in the control method includes a continuous circulating flow including returning the water body pumped out of the washing tub to the washing tub at a flow rate for a preset time period of any one washing course or an intermittent circulating flow including returning the water body pumped out of the washing tub to the washing tub at a frequency and a flow rate for a preset time period of any one washing course.
9. The heating control method of the washing machine as claimed in claim 8, wherein the washing machine adjusts the circulation water amount by adjusting the water flow rate for a preset time period of any washing course while the water body continuously circulates; when the water body intermittently and circularly flows, the washing machine adjusts the circulating water quantity by adjusting the circulating operation frequency and/or the water flow in the preset time period of any washing program.
10. A washing machine is characterized in that a heating pump (1) which is respectively connected with the top and the bottom of a washing barrel (3) through a pipeline (2) is arranged, and water in the washing barrel (3) is heated by the heating pump (1) and then pumped back into the washing barrel (3) to improve the water temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227080.3A CN112900016B (en) | 2019-12-04 | 2019-12-04 | Washing machine heating control method and washing machine using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227080.3A CN112900016B (en) | 2019-12-04 | 2019-12-04 | Washing machine heating control method and washing machine using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112900016A true CN112900016A (en) | 2021-06-04 |
| CN112900016B CN112900016B (en) | 2024-03-22 |
Family
ID=76104472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911227080.3A Active CN112900016B (en) | 2019-12-04 | 2019-12-04 | Washing machine heating control method and washing machine using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112900016B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006043102A (en) * | 2004-08-04 | 2006-02-16 | Matsushita Electric Ind Co Ltd | Washing machine |
| JP2006101965A (en) * | 2004-10-01 | 2006-04-20 | Matsushita Electric Ind Co Ltd | Washing machine |
| KR20060124221A (en) * | 2005-05-31 | 2006-12-05 | 엘지전자 주식회사 | Method for washing |
| CN102080323A (en) * | 2009-11-27 | 2011-06-01 | 海尔集团公司 | Method for controlling water feeding dissolution of washing powder in washing machine and washing machine thereof |
| JP2011152253A (en) * | 2010-01-27 | 2011-08-11 | Panasonic Corp | Washing machine |
| CN102433710A (en) * | 2011-09-29 | 2012-05-02 | 海尔集团公司 | Washing control method for washing machine and washing machine thereof |
| JP2012183084A (en) * | 2011-03-03 | 2012-09-27 | Panasonic Corp | Drum washing/drying machine |
| CN102926170A (en) * | 2012-09-04 | 2013-02-13 | 无锡小天鹅通用电器有限公司 | Water temperature control method of cold and hot water double-inlet washing machine |
| CN209260398U (en) * | 2018-11-20 | 2019-08-16 | 无锡小天鹅电器有限公司 | Washing machine and its water inlet system |
-
2019
- 2019-12-04 CN CN201911227080.3A patent/CN112900016B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006043102A (en) * | 2004-08-04 | 2006-02-16 | Matsushita Electric Ind Co Ltd | Washing machine |
| JP2006101965A (en) * | 2004-10-01 | 2006-04-20 | Matsushita Electric Ind Co Ltd | Washing machine |
| KR20060124221A (en) * | 2005-05-31 | 2006-12-05 | 엘지전자 주식회사 | Method for washing |
| CN102080323A (en) * | 2009-11-27 | 2011-06-01 | 海尔集团公司 | Method for controlling water feeding dissolution of washing powder in washing machine and washing machine thereof |
| JP2011152253A (en) * | 2010-01-27 | 2011-08-11 | Panasonic Corp | Washing machine |
| JP2012183084A (en) * | 2011-03-03 | 2012-09-27 | Panasonic Corp | Drum washing/drying machine |
| CN102433710A (en) * | 2011-09-29 | 2012-05-02 | 海尔集团公司 | Washing control method for washing machine and washing machine thereof |
| CN102926170A (en) * | 2012-09-04 | 2013-02-13 | 无锡小天鹅通用电器有限公司 | Water temperature control method of cold and hot water double-inlet washing machine |
| CN209260398U (en) * | 2018-11-20 | 2019-08-16 | 无锡小天鹅电器有限公司 | Washing machine and its water inlet system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112900016B (en) | 2024-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1861533B1 (en) | Method for washing of washer | |
| CN111041767A (en) | Multi-barrel washing device operation control method, computer readable storage medium and washing machine | |
| EP1751344A1 (en) | A washing machine generating and using the steam | |
| CN102433710B (en) | Washing control method for washing machine and washing machine thereof | |
| CN110411029A (en) | Control method for smart home system | |
| US5803985A (en) | Water fill sensing for a dishwasher | |
| CN105862322A (en) | Washing machine as well as control method and control device thereof | |
| CN111973000A (en) | Control method of evaporator and steam cooking device | |
| CN111123719A (en) | Household appliance control method, intelligent home controller and storage medium | |
| CN111779078A (en) | Control system and control method of integrated water tank | |
| CN112900016A (en) | Washing machine heating control method and washing machine applying same | |
| CN108572568B (en) | Cooperative control system and method for water consumption equipment and water heater | |
| CN107969943B (en) | Control method of soybean milk machine | |
| CN108572567B (en) | Cooperative control system and method for water consumption equipment and water heater | |
| CN206582961U (en) | Intelligent bath system | |
| CN211484102U (en) | Steam generator moisturizing control system and culinary art device | |
| CN211299860U (en) | Dish washing machine | |
| CN100457016C (en) | Dishwasher with energy-saving heating mode and method therefor | |
| KR101381406B1 (en) | Heating system using solar heat and ion-electrode heater | |
| CN112161410A (en) | Intelligent control ultrahigh frequency electric water heater device | |
| CN114059272A (en) | Control method of washing machine and washing machine | |
| CN111130161B (en) | Control method and system for continuous power supply of mobile power supply | |
| CN213429609U (en) | Integrated water tank with steam heating module | |
| KR20000043417A (en) | Control method of heating washing of drum washer | |
| CN106436192A (en) | Water-temperature-adjustable intelligent washing device and water temperature adjusting method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |