阅读说明：本技术 一种洗衣机的控制方法及洗衣机 (Control method of washing machine and washing machine ) 是由 范立超 孙思成 冯泉城 刘桃 王艳鹏 于 2021-08-10 设计创作，主要内容包括：本发明属于洗衣机技术领域,公开了一种洗衣机的控制方法及洗衣机,所述控制方法包括以下步骤：洗衣机获取环境温度T,根据环境温度T确定最佳触感水温T-(1)；末次漂洗时,洗衣机检测漂洗水温,将漂洗水温调节至所述最佳触感水温T-(1),进行漂洗。本发明的洗衣机在末次漂洗时将漂洗水温调节至与当前环境温度T相对应的最佳触感水温T-(1),漂洗完成及脱水结束后,用户取出衣物时,衣物还具有一定温度,能够提供给用户温热的手感,改善了用户体验。(The invention belongs to the technical field of washing machines, and discloses a control method of a washing machine and the washing machine, wherein the control method comprises the following steps: the washing machine obtains the ambient temperature T and determines the optimal touch water temperature T according to the ambient temperature T 1 (ii) a During the last rinsing, the washing machine detects the rinsing water temperature and adjusts the rinsing water temperature to the optimal touch water temperature T 1 And rinsing. The washing machine of the invention adjusts the rinsing water temperature to the optimal touch sense water temperature T corresponding to the current environment temperature T during the last rinsing 1 After the rinsing and dewatering are finished, when the user takes out the clothes, the clothes also have certain valueThe temperature can provide warm hand feeling for users, and the user experience is improved.)

1. A control method of a washing machine, characterized by comprising the steps of:

the washing machine obtains the ambient temperature T and determines the optimal touch water temperature T according to the ambient temperature T₁；

During the last rinsing, the washing machine detects the rinsing water temperature and adjusts the rinsing water temperature to the optimal touch water temperature T₁And rinsing.

2. The control method of a washing machine according to claim 1, characterized in thatCharacterized in that the washing machine determines the optimal touch temperature difference N according to the environment temperature T and the optimal touch temperature difference T according to T₁Calculating to obtain the optimal touch water temperature T₁；

Preferably, the washing machine prestores a corresponding relation N ═ f (T) between the optimal tactile sensation temperature difference N and the ambient temperature T, and calculates the optimal tactile sensation temperature difference N by substituting the acquired ambient temperature T into the corresponding relation.

3. The control method of a washing machine according to claim 2, wherein the washing machine is preset with a maximum value T of an optimal touch water temperature_maxAnd the lowest value T of the optimum touch feeling water temperature_min；

If T_min<T₁<T_maxAdjusting the rinsing water temperature to the optimal touch feeling water temperature T in the last rinsing₁；

Preferably, if T₁≥T_maxThe optimum touch feeling water temperature T₁Is corrected to the maximum value T_max；

If T₁≤T_minThe optimum touch feeling water temperature T₁Is corrected to the lowest value T_min。

4. The control method of a washing machine according to any one of claims 1 to 3, wherein the washing machine detects the rinsing water temperature in real time during the rinsing water temperature adjustment, and when the detected rinsing water temperature reaches the optimal touch feeling water temperature T₁And ending the rinsing water temperature adjusting process and starting rinsing.

5. The control method of a washing machine as claimed in claim 4, wherein the washing machine performs the water temperature up to the ironing temperature T before the last rinsing₂The scalding temperature T₂Water temperature T higher than optimum touch feeling₁；

After the operation of scalding, washing machine carries out rinsing temperature and adjusts, includes:

the washing machine feeds water into the washing bucket and detects the rinsing water temperature in the washing bucket in real time;

when the detected rinsing water temperature reaches the optimal touch feeling water temperature T₁When the water is not supplied, the water supply is stopped.

6. The control method of a washing machine according to claim 5, wherein the pulsator in the washing tub is controlled to rotate to agitate the rinsing water during the water supply of the washing machine;

preferably, the washing machine controls opening and closing of the inlet valve to generate an intermittent inflow, and controls the pulsator to rotate during interruption of the inflow.

7. The control method of a washing machine according to claim 4, wherein the rinsing water temperature adjustment is performed after the washing machine completes the last rinsing water intake, comprising:

the heating device is started to heat the rinsing water in the washing barrel;

detecting the rinsing water temperature in real time, and when the detected rinsing water temperature reaches the optimal touch water temperature T₁When so, the heating device is turned off.

8. The control method of a washing machine according to claim 7, wherein the washing machine controls a pulsator in the washing tub to rotate to agitate the rinse water during the heating;

preferably, the washing machine controls the pulsator to intermittently rotate to agitate the rinse water.

9. The control method of a washing machine according to any one of claims 1 to 8, further comprising: optimum touch feeling water temperature T according to clothes washing parameters₁Correcting, and adjusting rinsing water temperature to the corrected optimal touch feeling water temperature T by the washing machine during the last rinsing₁；

The washing parameters comprise rinsing time, and/or rinsing water level, and/or dewatering time, and/or clothes material, and/or clothes total mass.

10. A washing machine characterized by employing the control method of a washing machine according to any one of claims 1 to 9.

Technical Field

The invention belongs to the technical field of washing machines, and particularly relates to a control method of a washing machine and the washing machine.

Background

The washing machine has become a household appliance commonly owned by families at present, and along with the improvement of the quality of life, the functional requirements of users on the washing machine are gradually improved. For example, a washing machine having a heating function has been proposed in the related art, which can heat washing water, thereby improving detergent dissolution efficiency and improving washing effect. When the washing water is heated to a temperature close to boiling, the washing water can also play a role in sterilizing and disinfecting clothes.

However, in the existing washing machine with heating function, the heating operation is generally performed during the washing process, and the water is directly drained after the washing process is completed. In the subsequent rinsing process, the rinsing water is directly fed from the outside, the temperature is equivalent to the ambient temperature, and after one-time rinsing or multi-time rinsing and final dehydration, the temperature of the clothes is obviously reduced. Especially in winter or under the lower circumstances of ambient temperature, the temperature of clothing may obviously be lower than human body temperature after the completion of the laundry, leads to the user to take out the clothing when feeling the temperature is low, causes the user to experience the poor condition.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a control method for a washing machine and a washing machine, which can precisely adjust the rinsing water temperature to the optimal touch water temperature T corresponding to the current environment temperature T during the last rinsing₁After the rinsing and the dewatering are finished, when the user takes out the clothes, the clothes have a certain temperature, warm hand feeling can be provided for the user, and the user experience is improved.

In order to solve the technical problems, the invention adopts the technical scheme that:

a control method of a washing machine, comprising the steps of:

the washing machine obtains the ambient temperature T and determines the optimal touch water temperature T according to the ambient temperature T₁；

During the last rinsing, the washing machine detects the rinsing water temperature and adjusts the rinsing water temperature to the optimal touch water temperature T₁And rinsing.

Further, the washing machine determines the optimal touch temperature difference N according to the environment temperature T and determines the optimal touch temperature difference N according to T₁Calculating to obtain the optimal touch water temperature T₁；

Preferably, the washing machine prestores a corresponding relation N ═ f (T) between the optimal tactile sensation temperature difference N and the ambient temperature T, and calculates the optimal tactile sensation temperature difference N by substituting the acquired ambient temperature T into the corresponding relation.

Further, the washing machine is preset with the maximum value T of the optimal touch water temperature_maxAnd the lowest value T of the optimum touch feeling water temperature_min；

If T_min<T₁<T_maxAdjusting the rinsing water temperature to the optimal touch feeling water temperature T in the last rinsing₁；

Preferably, if T₁≥T_maxThe optimum touch feeling water temperature T₁Is corrected to the maximum value T_max；

If T₁≤T_minThe optimum touch feeling water temperature T₁Is corrected to the lowest value T_min。

Further, in the rinsing water temperature adjusting process, the washing machine detects the rinsing water temperature in real time, and when the detected rinsing water temperature reaches the optimal touch water temperature T₁And ending the rinsing water temperature adjusting process and starting rinsing.

Further, the washing machine performs the water temperature up to the scalding temperature T before the last rinsing₂The scalding temperature T₂Water temperature T higher than optimum touch feeling₁；

After the operation of scalding, washing machine carries out rinsing temperature and adjusts, includes:

the washing machine feeds water into the washing bucket and detects the rinsing water temperature in the washing bucket in real time;

when the detected rinsing water temperature reaches the optimal touch feeling water temperature T₁When the water is not supplied, the water supply is stopped.

Furthermore, in the water inlet process of the washing machine, the impeller in the washing tub is controlled to rotate to stir the rinsing water;

preferably, the washing machine controls opening and closing of the inlet valve to generate an intermittent inflow, and controls the pulsator to rotate during interruption of the inflow.

Further, the washing machine performs rinsing water temperature adjustment after finishing the last rinsing water intake, including:

the heating device is started to heat the rinsing water in the washing barrel;

detecting the rinsing water temperature in real time, and when the detected rinsing water temperature reaches the optimal touch water temperature T₁When so, the heating device is turned off.

Further, in the heating process, the washing machine controls the impeller in the washing barrel to rotate to stir rinsing water;

preferably, the washing machine controls the pulsator to intermittently rotate to agitate the rinse water.

Further, still include: optimum touch feeling water temperature T according to clothes washing parameters₁Correcting, and adjusting rinsing water temperature to the corrected optimal touch feeling water temperature T by the washing machine during the last rinsing₁；

The washing parameters comprise rinsing time, and/or rinsing water level, and/or dewatering time, and/or clothes material, and/or clothes total mass.

Another object of the present invention is to provide a washing machine, which employs the above-mentioned control method of the washing machine.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

In the invention, the washing machine determines the optimal touch water temperature T according to the environment temperature T₁As the rinsing water temperature of the last rinsing, while the washing machine directly detects the rinsing water temperature to control the adjusting process, thereby precisely adjusting the rinsing water temperature at the last rinsing to the maximumGood touch feeling water temperature T₁Rinsing is carried out, after clothes are washed, the clothes can have a certain temperature, so that when the user takes out the clothes, warm hand feeling can be provided for the user, and especially in winter or under the condition of low environmental temperature, user experience is obviously improved.

In the invention, the washing machine detects the rinsing water temperature in real time in the adjusting process, and once the detection result reaches the optimal touch water temperature T₁The adjusting process is finished, and the control of the rinsing water temperature is more accurate. In the adjusting process, rinse water is stirred by controlling the rotation of the impeller, so that cold water, hot water and clothes in the washing bucket are fully mixed uniformly, the detected rinse water temperature can reflect the actual temperature of a mixture of the clothes in the washing bucket more truly, and the accuracy of rinse water temperature control is further improved.

In the invention, because the washing parameters such as rinsing time, rinsing water level, dewatering time, clothes material and total clothes quality can influence the cooling amplitude of the clothes water mixture after the temperature adjustment is finished, the washing machine directly calculates the optimal touch water temperature T according to different washing parameters₁Correcting the optimum touch feeling water temperature T according to the corrected optimum touch feeling water temperature₁Adjust the rinsing temperature of last rinsing to after accomplishing the laundry under the parameter of making different laundries, the sense of touch temperature of gained clothing is more close, and user experience is better.

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 flow chart of a control method according to one embodiment of the present invention;

fig. 2 is a flowchart of a control method according to a second embodiment of the present invention.

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.

Example one

The embodiment provides a control method of a washing machine and a washing machine adopting the control method.

As shown in fig. 1, the control method of the washing machine according to the present embodiment includes:

the washing machine obtains the ambient temperature T and determines the optimal touch water temperature T according to the ambient temperature T₁；

During the last rinsing, the washing machine detects the rinsing water temperature and adjusts the rinsing water temperature to the optimal touch water temperature T₁And rinsing.

The manner of obtaining the ambient temperature T by the washing machine in this embodiment may be: the current environment temperature T is directly detected by an environment temperature detection device arranged on the surface of the washing machine case.

When the washing machine has a networking function, the manner of obtaining the ambient temperature T may also be: based on the area where the washing machine is located, the current ambient temperature T of the located area is inquired through the server.

Or, the corresponding ambient temperature T may be directly and correspondingly adjusted based on the area where the washing machine is located and the current season.

In the embodiment, the washing machine determines the optimal touch water temperature T matched with the acquired environmental temperature T through the acquired environmental temperature T₁And controlling to adjust the rinsing water temperature to the optimal touch feeling water temperature T by directly detecting the rinsing water temperature during the last rinsing₁Rinsing is performed. Thus, the last rinsingIn the course of the process, the clothes and the water temperature T with the best touch feeling₁The rinsing water is fully and uniformly mixed, and after the final dehydration is finished, the clothes can have a certain temperature, so that when a user takes out the clothes, the clothes can have a warm hand feeling. Especially in winter or other environment temperature lower circumstances, avoided the user to take out the touch cold when clothing, lead to the not good condition of user experience.

The washing machine of the embodiment is provided with the temperature detection device for detecting the water temperature in the washing tub, such as a temperature sensor, the rinsing water temperature is directly detected by the temperature detection device to control the adjustment of the rinsing water temperature, and compared with the mode of controlling the water temperature, such as the heating power and the heating time of a heating device in the prior art, the influence of environmental factors and the like is avoided, so that the rinsing water temperature can be more accurately adjusted to the optimal touch water temperature T₁。

In the above-described aspect, the washing machine has an optimum tactile sensation mode that can be turned on/off, and when a user turns on the optimum tactile sensation mode, the washing machine acquires an ambient temperature T and adjusts a rinsing water temperature to an optimum tactile sensation water temperature T matching the ambient temperature T at the last rinsing₁. When the optimal touch pattern is in the off state, the washing machine normally feeds water to the rinsing water level at the last rinsing, and then directly starts rinsing.

In the embodiment, the washing machine determines the optimal touch temperature difference N according to the environment temperature T and determines the optimal touch temperature difference N according to T₁Calculating to obtain the optimal touch water temperature T₁。

Further, the washing machine prestores a corresponding relation N ═ f (T) between the optimal tactile sensation temperature difference N and the environment temperature T, and the obtained environment temperature T is substituted into the corresponding relation to calculate the optimal tactile sensation temperature difference N.

In the scheme, the optimal touch temperature difference N meeting most people is tested in a standard laboratory according to different environment temperatures T, curve fitting is carried out according to multiple groups of obtained values of T and N, the corresponding relation N (f (T)) between the optimal touch temperature difference N and the environment temperatures T is obtained, and the corresponding relation N (f) (T) is written into a control program of the washing machine.

When the best touch mode is started, washing clothesObtaining the environmental temperature T, substituting the environmental temperature T into N ═ f (T) to calculate the corresponding optimal touch temperature difference N, and then calculating the optimal touch temperature difference according to T₁Calculating corresponding optimal touch water temperature T as T + N₁And is used for adjusting the rinsing water temperature in the last rinsing process.

It can be understood that the control program of the washing machine can also be directly written with the ambient temperature T and the optimal touch feeling water temperature T₁The corresponding relation of (1): t is₁T + f (T). When the washing machine is running, the environmental temperature T is directly brought into the corresponding relation T₁In T + f (T), the optimum tactile water temperature T is calculated₁。

In a further aspect of this embodiment, the washing machine is preset with a maximum value T of the optimal touch water temperature_maxAnd the lowest value T of the optimum touch feeling water temperature_min。

If T_min<T₁<T_maxAdjusting the rinsing water temperature to the optimal touch feeling water temperature T in the last rinsing₁；

If T₁≥T_maxThe optimum touch feeling water temperature T₁Is corrected to the maximum value T_maxI.e. adjusting the rinsing water temperature to T at the last rinsing_max；

If T₁≤T_minThe optimum touch feeling water temperature T₁Is corrected to the lowest value T_minI.e. adjusting the rinsing water temperature to T at the last rinsing_min。

In the above scheme, the maximum value T is_maxAnd the lowest value T_minThe setting can be carried out according to the actual situation mainly due to the consideration of the use safety of the washing machine. For example, if the temperature of the rinsing water is too high, the user may be burned if the operation is not proper during the draining. Or, too high a drainage temperature may damage the plastic drainage hose, and may cause the drainage hose to be aged and leak water for a long time. If the rinsing water temperature is lower and is quite close to the body surface temperature of a human body, obvious warm hand feeling cannot be provided for a user, and the control method cannot achieve ideal action and effect.

Washing clothes in normal ambient temperature rangeCalculated optimal touch feeling water temperature T₁Generally will not exceed (T)_min,T_max) The range of (1). However, when the environment is too cold or too hot, or when the environment temperature T is erroneously acquired due to an unexpected situation, the optimal tactile water temperature T finally calculated may occur₁Below T_minOr above T_maxThe case (1).

In this embodiment, the maximum value T is preset_maxAnd the lowest value T_minTo control the adjustable range of the rinsing water temperature and ensure that the finally adjusted rinsing water temperature is T_minAnd T_maxThereby avoiding the occurrence of extreme rinsing water temperature and further influencing the working effect of the washing machine. In the present embodiment, specifically, T_min＝30℃，T_max＝50℃。

In the further scheme of this embodiment, during rinsing water temperature adjusting process, washing machine real-time detection rinsing water temperature reaches when the rinsing water temperature that detects best sense of touch temperature T₁And ending the rinsing water temperature adjusting process and starting rinsing.

In the above scheme, the washing machine is provided with the temperature sensor capable of monitoring the water temperature in the washing barrel in real time, the current rinsing water temperature is detected in real time in the process of adjusting the rinsing water temperature, and once the detection result reaches the optimal touch water temperature T₁The adjusting process is finished, and the control of the rinsing water temperature is more accurate.

In the embodiment, the washing machine executes the water temperature before the last rinsing to reach the scalding temperature T₂The scalding temperature T₂Water temperature T higher than optimum touch feeling₁. Ironing temperature T of the present example₂Set at 95 ℃, it is understood that the scalding temperature T is₂The temperature may be set to any temperature within the range of 85 to 95 ℃.

After the operation of scalding, washing machine carries out rinsing temperature and adjusts, includes:

the washing machine feeds water into the washing bucket and detects the rinsing water temperature in the washing bucket in real time;

when the detected rinsing water temperature reaches the optimal touch feeling water temperature T₁When the temperature of the water is higher than the set temperature,and stopping water inflow.

In the above scheme, the washing machine is provided with the heating device capable of heating the water in the washing tub, and the water in the washing tub is heated before the last rinsing so as to reach the higher scalding temperature T₂The high-temperature sterilization and disinfection can be carried out on the washed clothes. After the scalding is finished, normal-temperature water is fed into the washing bucket again to be neutralized with high-temperature water in the bucket, and finally the optimal touch feeling water temperature T is adjusted to be required₁。

Furthermore, in the water inlet process of the washing machine, the impeller in the washing tub is controlled to rotate to stir the rinsing water.

Preferably, the washing machine controls opening and closing of the inlet valve to generate an intermittent inflow, and controls the pulsator to rotate during interruption of the inflow.

In the scheme, the rinsing water is stirred by the impeller, so that the hot water and the clothes in the barrel can be more fully and uniformly mixed with the cold water entering the barrel. Because the temperature detection device can only detect the water temperature of a local area in the washing barrel generally, the inaccurate detection result caused by uneven temperature distribution is avoided.

The intermittent water inflow is generated by controlling the water inlet valve to be intermittently opened and closed, and the rinsing water is stirred when the water flow is interrupted.

In detail, as shown in fig. 1, the control method of the washing machine in the present embodiment specifically includes the following steps:

s101, obtaining an ambient temperature T;

s102, calculating an optimal touch temperature difference N according to the environment temperature T;

s103, starting water inflow in the last rinsing, and enabling water to enter to a scalding water level;

s104, starting a heating device, and heating to a scalding temperature T₂Executing a scalding operation;

s105, finishing the scalding operation;

s106, controlling the water inlet valve to be opened and closed intermittently, feeding water into the washing tub, and controlling the impeller to rotate intermittently to stir rinsing water;

s107, detecting the rinsing water temperature in real time, and judging whether the detected rinsing water temperature T' is equal to the optimal touch feeling water temperature T₁＝T+N；

S108, if so, stopping water inflow and starting rinsing, otherwise, returning to the step S106;

and S109, executing the last rinsing, balancing, draining and final dewatering operation, and ending.

Preferably, when the rinsing water temperature is determined in step S107, the detected rinsing water temperatures T' and T are first detected_minAnd T_maxA comparison is made when the detected rinsing water temperature T 'satisfies T' e (T)_min,T_max) Then, T' is compared with T₁Whether or not equal.

Wherein the scalding water level is at least the lowest heatable water level of the washing machine. For example, the heating device in this embodiment is a heating pipe, and the scalding water level at least passes through the heating pipe.

Further preferably, the water level in the washing tub is continuously detected during the water supply of the washing machine, and the detected rinsing water temperature T' is not equal to the optimum touch feeling water temperature T even after the water level in the washing tub reaches the maximum rinsing water level₁If so, stopping water inflow and judging whether the rinsing water temperature T' is less than T_max. If yes, rinsing is started, otherwise, the temperature of rinsing water is waited to be reduced to be lower than T_maxAnd then rinsed again.

In this embodiment, the washing machine calculates the corresponding optimal touch water temperature T according to the acquired ambient temperature T₁In the last rinsing, a small amount of water is firstly fed and heated to a higher scalding temperature T₂The clothes are ironed, so that the functions of sterilization and disinfection are achieved. After the ironing and washing is finished, water is continuously fed into the washing machine, cold water and hot water are fully mixed through rotation of the impeller, meanwhile, the rinsing water temperature is detected in real time, and when the rinsing water temperature reaches the optimal touch feeling water temperature T₁When the water is not fed into the water tank, the water is not fed into the water tank. Therefore, the clothes water mixture with proper temperature can be obtained, and the clothes can have certain temperature after the clothes washing is finished. When the user takes out the clothes from the washing machine, warm touch feeling can be provided for the user, and particularly in winter or under the condition of low ambient temperature, the phenomenon that the user takes out the clothes from the washing machine is avoidedThe problem that the user snatchs ice-cold clothing has obviously improved user experience.

Example two

The present embodiment is different from the first embodiment in that: the washing machine does not execute scalding operation, water is directly fed to a rinsing water level during the last rinsing, and the rinsing water is heated through the heating device, so that the rinsing water temperature is adjusted.

Specifically, the washing machine performs rinsing water temperature adjustment after finishing the last rinsing water intake, and comprises:

the heating device is started to heat the rinsing water in the washing barrel;

detecting the rinsing water temperature in real time, and when the detected rinsing water temperature reaches the optimal touch water temperature T₁When so, the heating device is turned off.

In the scheme, the washing machine directly feeds water to the set rinsing water level, then the heating device is started to heat the rinsing water, and when the rinsing water temperature reaches the optimal touch water temperature T₁And then the heating process is ended. By directly heating the rinsing water to reach the optimum tactility water temperature T₁The purpose of providing warm feeling clothes for users can be achieved.

Further, in the heating process, the washing machine controls the impeller in the washing tub to rotate to stir the rinsing water.

Preferably, the washing machine controls the pulsator to intermittently rotate to agitate the rinse water.

In the above scheme, since the heating device has a limited action range for heating the rinsing water, when the heat conduction speed is slow, the temperature of the rinsing water in the area close to the heating device is high, and the temperature of the rinsing water in the area far from the heating device is low. The temperature of the water detected by the temperature detecting device is the temperature of the water in a local area in the washing tub, and is likely to be greatly different from the actual average temperature of the current rinsing water.

The rinsing water is stirred by the intermittent rotation of the impeller, so that the diffusion speed of heat generated by the heating device in the water can be increased, and the temperature of the rinsing water is more uniformly distributed in the washing barrel. The rinsing water temperature detected in this way is more accurate, and the washing machine can control the rinsing water temperature more accurately.

In detail, as shown in fig. 2, the control method of the washing machine in the present embodiment specifically includes the following steps:

s201, acquiring an ambient temperature T;

s202, calculating an optimal touch temperature difference N according to the environment temperature T;

s203, starting water inflow in the last rinsing, and starting a heating device when the water inflow is up to a set rinsing water level;

s204, heating the rinsing water by a heating device, and controlling the impeller to rotate intermittently to stir the rinsing water;

s205, detecting the rinsing water temperature in real time, and judging whether the detected rinsing water temperature T' is equal to the optimal touch water temperature T₁＝T+N；

S206, if yes, closing the heating device, starting rinsing, and if not, returning to the step S204;

and S207, performing the last rinsing, balancing, draining and final dewatering operation, and ending.

Preferably, when the rinsing water temperature is determined in step S205, the detected rinsing water temperatures T' and T are first detected_minAnd T_maxA comparison is made when the detected rinsing water temperature T 'satisfies T' e (T)_min,T_max) Then, T' is compared with T₁Whether or not equal.

In this embodiment, since the washing machine does not perform the scalding operation before the last rinsing operation, the rinsing water is directly heated to the optimum touch water temperature T by the heating device after the last rinsing intake water reaches the set water level₁So as to obtain the clothing water mixture with proper temperature. Similar to the effect of the first embodiment, when the user takes out the clothes after the clothes washing is completed, the clothes can have warm hand feeling, so that the user experience is improved.

EXAMPLE III

In this embodiment, as a further limitation of the first or second embodiment, the washing machine calculates the corresponding optimal touch feeling water temperature T according to the ambient temperature T₁Then, the optimal touch feeling water temperature T is also adjusted according to the clothes washing parameters₁Correcting, and adjusting rinsing water temperature by washing machine during the last rinsingTo the corrected optimum touch feeling water temperature T₁Rinsing is performed.

Wherein, the washing parameters comprise rinsing time, rinsing water level, dewatering time, clothes material and total clothes mass.

The washing machine adjusts the rinsing water temperature to the optimal touch feeling water temperature T₁After that, the washing process is completed through the last rinsing, balancing, draining and final dewatering operations, and the temperature of the laundry-water mixture inevitably decreases to some extent during the execution of the above operations. The washing parameters such as rinsing time, rinsing water level, dewatering time, clothes material and total clothes quality all influence the reduction degree of the temperature, and the rinsing water temperature is adjusted to be the same as the optimal touch feeling water temperature T₁Then, the temperature of the touch feeling of the clothes after the washing is finished may be different due to different washing parameters.

For example, the greater the rinsing water level and the total mass of the laundry, the slower the cooling rate of the water mixture is, and when the rinsing water level is lower or the total mass of the laundry is smaller, the optimum touch feeling water temperature T can be calculated₁And then the temperature is appropriately raised to a certain extent to serve as a target temperature for adjusting the rinsing water temperature.

The longer the rinsing time and the dewatering time, the more the temperature reduction range is, and when the set value of the rinsing time or the dewatering time is larger, the optimal touch feeling water temperature T can be calculated₁And then the temperature is appropriately raised to a certain extent to serve as a target temperature for adjusting the rinsing water temperature.

Clothes made of different materials have different water content after rinsing and water draining due to different water absorption performance, and further different cooling rates in the final dewatering process can be caused. Therefore, the target temperature for adjusting the rinsing water temperature may be the optimum tactile water temperature T based on the environmental temperature T for the clothes of different materials₁Is appropriately raised or lowered, so that the clothes can have the best touch when taken out.

In detail, the correction coefficients for different laundry parameters can be derived in advance in a standard laboratory through a large number of experimental testsAnd writing the control program into the control program of the washing machine. When the washing machine runs, according to one or more set washing parameters, a correction coefficient corresponding to the type and value of the washing parameter is called, and the optimal touch feeling water temperature T obtained through calculation is subjected to₁And (6) correcting.

In this embodiment, the washing machine calculates the optimal touch feeling water temperature T based on the ambient temperature T₁And then, calculating the optimal touch water temperature T according to washing parameters such as rinsing time, rinsing water level, dewatering time, clothes material, total clothes mass and the like₁Correcting the water temperature and keeping the corrected optimal touch feeling water temperature T at the last rinsing₁The rinsing water temperature is adjusted. So can be as far as possible balance under the different laundry parameters, the difference of clothing water mixture cooling degree for accomplish the laundry process back under different laundry parameters, all can obtain the temperature and be close relatively, accord with the clothing of human best sense of touch.

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.