Washing machine drying control method and washing machine

Abstract

The invention provides a washing machine drying control method and a washing machine, and the method comprises the steps: obtaining an initial temperature value, detected by a temperature sensor, in the washing machine, and setting the maximum temperature value as the initial temperature value; a heater is controlled to be started, the actual temperature value in the washing machine is obtained at the preset interval time, and the actual temperature value is compared with the initial temperature value; if the actual temperature value is greater than the maximum temperature value, changing the maximum temperature value into the actual temperature value; if the actual temperature value is smaller than the maximum temperature value, the maximum temperature value is set as the calibrated temperature value; calculating a difference value between the calibrated temperature value and the actual temperature value; if the difference value is larger than the preset difference value, the heater is controlled to be turned off. The maximum temperature value in the drying process is obtained by detecting the temperature in the washing machine in real time, and whether the drying ending condition is met or not is judged according to the difference value between the actual temperature value and the calibrated temperature value, so that the problem that clothes are excessively dried or not dried thoroughly in the washing machine is solved.

Description

Technical Field

[0001] The present application relates to the technical field of washing machines, and in particular to a washing machine drying control method and a washing machine. Background Art

[0002] A washing machine is a cleaning appliance that uses electrical energy to generate mechanical action to wash clothes. The main function of a washing machine is to remove stains from clothes through mechanical and chemical effects. The dirt on the clothes is decomposed and rinsed clean through the impact of water flow and the chemical reaction of detergent. At the same time, the washing machine also has a dehydration function, which removes the water from the clothes through high-speed rotation to reduce the drying time.

[0003] Among them, the drying washing machine can quickly dry clothes to prevent clothes from being damp for a long time and producing odor. The drying washing machine can dry clothes immediately after washing, saving time for drying and waiting. When drying clothes, the drying washing machine can determine the target drying time according to the weight and humidity of the clothes to be dried according to the pre-configured time. Due to the different types of clothes and clothes materials, the method of determining the target drying time according to the weight and humidity of the clothes to be dried according to the pre-configured time may lead to insufficient drying or over-drying. At the same time, the statistics of the pre-configured parameters are relatively complicated, which may cause the problem of inaccurate remaining drying time during drying. Summary of the invention

[0004] The present application provides a washing machine drying control method and a washing machine, so as to solve the problem that the washing machine dries clothes excessively or incompletely.

[0005] In a first aspect, the present application provides a washing machine drying control method, comprising:

[0006] Acquire an initial temperature value in the washing machine detected by a temperature sensor, and set the maximum temperature as the initial temperature value;

[0007] Control heater start;

[0008] Acquiring an actual temperature value in the washing machine at a preset interval, and comparing the actual temperature value with the initial temperature value;

[0009] If the actual temperature value is greater than the maximum temperature value, the maximum temperature value is changed to the actual temperature value;

[0010] If the actual temperature value is less than the maximum temperature value, the maximum temperature value is set as the calibration temperature value;

[0011] Calculating the difference between the calibrated temperature value and the actual temperature value;

[0012] If the difference is greater than a preset difference, the heater is controlled to be turned off.

[0013] Optionally, after setting the maximum temperature value as a calibration temperature value, the method further includes:

[0014] If the actual temperature value is less than the preset stop temperature, the heater is controlled to be turned off.

[0015] Optionally, after setting the maximum temperature value as a calibration temperature value, the method further includes:

[0016] obtaining the humidity value in the washing machine detected by the humidity sensor at a preset interval;

[0017] If the humidity value is less than a preset humidity value, the heater is controlled to be turned off.

[0018] Optionally, after controlling the heater to be turned off, the method further includes:

[0019] If the actual temperature value is less than the opening temperature of the washing machine, the washing machine door is controlled to open.

[0020] Optionally, also include:

[0021] Get the initial weight of clothes in the washing machine;

[0022] If the initial laundry weight is within a first preset range, the preset difference is a first difference, and the preset stop temperature is a first preset stop temperature;

[0023] If the initial laundry weight is within a second preset range, the preset difference is a second difference, and the preset stop temperature is a second preset stop temperature;

[0024] If the initial laundry weight is within a third preset range, the preset difference is a third difference, and the preset stop temperature is a third preset stop temperature;

[0025] If the initial laundry weight is within a fourth preset range, the preset difference is a fourth difference, and the preset stop temperature is a fourth preset stop temperature.

[0026] In a second aspect, the present application provides a washing machine, which is applied to the washing machine drying control method described in the first aspect, comprising:

[0027] A temperature sensor, wherein the temperature sensor is used to detect a temperature value in the washing machine;

[0028] Heater;

[0029] A controller, wherein the controller is connected to the temperature sensor and the heater respectively;

[0030] The controller is configured to:

[0031] Acquire the initial temperature value in the washing machine detected by the temperature sensor, control the heater to start, and set the maximum temperature to the initial temperature value;

[0032] Acquiring an actual temperature value in the washing machine at a preset interval, and comparing the actual temperature value with the initial temperature value;

[0033] If the actual temperature value is greater than the maximum temperature value, the maximum temperature value is changed to the actual temperature value;

[0034] If the actual temperature value is less than the maximum temperature value, the maximum temperature value is set as the calibration temperature value;

[0035] Calculating the difference between the calibrated temperature value and the actual temperature value;

[0036] If the difference is greater than a preset difference, the heater is controlled to be turned off.

[0037] Optionally, a humidity sensor is further included, wherein the humidity sensor is disposed in the washing machine and connected to the controller;

[0038] The controller is also configured to:

[0039] If the actual temperature value is less than the maximum temperature value, the maximum temperature value is set as the calibration temperature value;

[0040] obtaining the humidity value in the washing machine detected by the humidity sensor at a preset interval;

[0041] If the humidity value is less than a preset humidity value, the heater is controlled to be turned off.

[0042] Optionally, the controller is configured as:

[0043] If the difference is greater than a preset difference, controlling the heater to be turned off;

[0044] If the actual temperature value is less than the opening temperature of the washing machine, the washing machine door is controlled to open.

[0045] Optionally, it further includes a weight module, wherein the weight module is disposed in the washing machine and connected to the controller;

[0046] The controller is configured to:

[0047] Obtaining the initial weight of clothes in the washing machine detected by the weight module;

[0048] If the initial laundry weight is within a first preset range, the preset difference is a first difference, and the preset stop temperature is a first preset stop temperature;

[0049] If the initial laundry weight is within a second preset range, the preset difference is a second difference, and the preset stop temperature is a second preset stop temperature;

[0050] If the initial laundry weight is within a third preset range, the preset difference is a third difference, and the preset stop temperature is a third preset stop temperature;

[0051] If the initial laundry weight is within a fourth preset range, the preset difference is a fourth difference, and the preset stop temperature is a fourth preset stop temperature.

[0052] It can be seen from the above technical scheme that the present application provides a washing machine drying control method and a washing machine, the washing machine drying control method comprising: obtaining the initial temperature value detected by the temperature sensor in the washing machine, and setting the maximum temperature to the initial temperature value; controlling the heater to start, obtaining the actual temperature value in the washing machine at a preset interval, and comparing the actual temperature value with the initial temperature value; if the actual temperature value is greater than the maximum temperature value, changing the maximum temperature value to the actual temperature value; if the actual temperature value is less than the maximum temperature value, setting the maximum temperature value to the calibration temperature value; calculating the difference between the calibration temperature value and the actual temperature value; if the difference is greater than the preset difference, controlling the heater to turn off. The maximum temperature in the drying process is obtained by real-time detection of the temperature in the washing machine, and judging whether the drying end condition is met according to the difference between the actual temperature value and the calibration temperature value, so as to solve the problem of excessive or incomplete drying of clothes in the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0054] Figure 1 A washing machine drying control method provided in an embodiment of the present application;

[0055] Figure 2 A drying temperature and humidity curve diagram of a washing machine provided in an embodiment of the present application;

[0056] Figure 3 This is a schematic diagram of the structure of a washing machine provided in an embodiment of the present application. DETAILED DESCRIPTION

[0057] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0058] A washing machine is a cleaning appliance that uses electrical energy to generate mechanical action to wash clothes. The main function of a washing machine is to remove stains from clothes through mechanical and chemical effects. The dirt on the clothes is decomposed and rinsed clean through the impact of water flow and the chemical reaction of detergent. At the same time, the washing machine also has a dehydration function, which removes the water from the clothes through high-speed rotation to reduce the drying time.

[0059] Among them, the drying washing machine can quickly dry clothes to prevent clothes from being damp for a long time and producing odor. The drying washing machine can dry clothes immediately after washing, saving time for drying and waiting. When drying clothes, the drying washing machine can determine the target drying time according to the weight and humidity of the clothes to be dried according to the pre-configured time. Due to the different types of clothes and clothes materials, the method of determining the target drying time according to the weight and humidity of the clothes to be dried according to the pre-configured time may lead to insufficient drying or over-drying. At the same time, the statistics of the pre-configured parameters are relatively complicated, which may cause the problem of inaccurate remaining drying time during drying.

[0060] To solve the problem of excessive or incomplete drying of clothes in a washing machine. The present application provides a washing machine drying control method, see Figure 1 , the washing machine drying control method specifically includes:

[0061] S100: obtaining an initial temperature value detected by a temperature sensor in the washing machine, and setting the maximum temperature as the initial temperature value;

[0062] Among them, the temperature sensor is set in the washing machine, which is used to detect the temperature value in the washing machine in real time. When clothes need to be dried, since it is necessary to obtain the maximum temperature in the washing machine during the drying process, the initial temperature value in the washing machine can be detected first, and the maximum temperature can be set as the initial temperature value. During the drying process, when the temperature value in the washing machine changes, the maximum temperature can be updated.

[0063] S200: Control the heater to start.

[0064] After the heater is started, hot air can be generated. The fan blows the hot air into the drying drum of the washing machine. After contacting the wet clothes, the hot air takes away the moisture, and then is heated again and recycled. After the heater is started, the temperature in the washing machine will gradually rise, and the humidity in the washing machine will also gradually rise. When the humidity in the washing machine reaches a higher value, the steam will absorb heat and turn into condensed water to flow out. Therefore, during the drying process, the temperature change in the washing machine is first rising and then falling. Therefore, the temperature value can be detected in real time through the temperature sensor, and the maximum temperature value in the washing machine can be obtained.

[0065] S300: Acquire the actual temperature value in the washing machine at preset intervals, and compare the actual temperature value with the initial temperature value.

[0066] If the actual temperature value is greater than the maximum temperature value, the maximum temperature value is changed to the actual temperature value; if the actual temperature value is less than the maximum temperature value, the maximum temperature value is set as the calibration temperature value.

[0067] Specifically, when the initial temperature value is 20°C, the actual temperature value in the washing machine is detected every 30 seconds. At the first prediction interval, the temperature in the washing machine becomes 22°C. At this time, the actual temperature value is 22°C and the actual temperature value is greater than the maximum temperature of 20°C. The maximum temperature is set to 22°C. At the second preset interval, the temperature in the washing machine becomes 25°C. At this time, the actual temperature value is 25°C and the actual temperature value is greater than the maximum temperature. The maximum temperature is set to 25°C. By constantly updating the maximum temperature, in the process of continuously detecting the temperature in the washing machine, when the actual temperature value is less than the maximum temperature, the maximum temperature in the drying process can be obtained, and the maximum temperature is set to the calibrated temperature value. The drying end condition can be obtained by calibrating the temperature value.

[0068] S400: Calculate the difference between the calibrated temperature value and the actual temperature value;

[0069] S500: If the difference is greater than the preset difference, the heater is controlled to be turned off.

[0070] After obtaining the calibrated temperature value, the difference between the calibrated temperature and the actual temperature value can be calculated in real time. When the difference is greater than the preset difference, the drying end condition is met, and the heater can be controlled to turn off to end the drying process.

[0071] For example, the preset difference is 15°C, the calibrated temperature value is 60°C, when the actual temperature value is 44°C, the difference between the calibrated temperature value and the actual temperature value is 16°C, and the difference between the calibrated temperature value and the actual temperature value is greater than the preset difference. Turning off the heater can end the drying. Since the temperature inside the washing machine is high at the end of drying, it is necessary to enter the cooling stage and wait for the temperature inside the washing machine to drop to a safe temperature before the dried clothes can be taken out.

[0072] In some embodiments, after the maximum temperature is set to a calibrated temperature value, the washing machine drying control method further includes:

[0073] If the actual temperature value is lower than the preset stop temperature, the heater is controlled to be turned off.

[0074] Among them, during the drying process, when the maximum temperature is low, the temperature in the washing machine is not easy to lower. To meet the requirement that the difference between the actual temperature value and the calibrated temperature value is less than the preset difference, a longer drying time is required, and over-drying is prone to occur. Therefore, a preset stop temperature can be set. After the actual temperature value in the washing machine reaches the maximum temperature, the actual temperature value in the washing machine gradually decreases. When the actual temperature value is less than the preset stop temperature, the heater can be controlled to turn off to prevent the clothes in the washing machine from being over-drying.

[0075] In some embodiments, after setting the maximum temperature value to a calibration temperature value, the method further includes:

[0076] The humidity value in the washing machine detected by the humidity sensor is obtained at preset intervals.

[0077] If the humidity value is less than the preset humidity value, the heater is controlled to be turned off.

[0078] Among them, during the drying process, when the temperature in the washing machine reaches the maximum temperature, the temperature and humidity in the washing machine will gradually decrease, and the humidity in the washing machine will also gradually decrease. If the difference between the actual temperature value and the calibrated temperature value in the washing machine is not greater than the preset difference at this time, the humidity in the washing machine is low, which will cause the clothes to be over-drying. Therefore, when the humidity drops to the preset humidity value, the heater can be controlled to turn off to prevent the clothes in the washing machine from being over-drying.

[0079] like Figure 2 As shown, Figure 2 The figure is a drying temperature and humidity curve of the washing machine; from moment T0, the heater starts to work, and the temperature and humidity in the washing machine rise until moment T1, which is the heating process of the drying process. During the heating process, it is necessary to find the maximum temperature value of this drying process. The moment from T1 to T2 is the cooling stage of the drying process, wherein the difference between the maximum temperature value corresponding to T1 and the actual temperature value corresponding to T2 is greater than the preset difference, and the drying heating stop condition is met. The moment from T2 to T3 is the cooling stage after the drying heating stops. At this time, the temperature in the washing machine is relatively high, and it needs to be reduced to a safe temperature before the washing machine door can be opened. Therefore, after controlling the heater to be turned off, the washing machine drying control method also includes:

[0080] If the actual temperature value is less than the opening temperature of the washing machine, the washing machine door is controlled to open.

[0081] Among them, the temperature corresponding to time T3 is the opening temperature of the washing machine. When the actual temperature value is lower than the opening temperature of the washing machine, the door of the washing machine can be controlled to open, prompting the user that the drying process is over and the dried clothes need to be taken out.

[0082] In some embodiments, the drying control method further comprises:

[0083] Get the initial weight of the laundry in the washing machine.

[0084] If the initial laundry weight is within the first preset range, the preset difference is the first difference, and the preset stop temperature is the first preset stop temperature.

[0085] If the initial laundry weight is within the second preset range, the preset difference is the second difference, and the preset stop temperature is the second preset stop temperature.

[0086] If the initial laundry weight is within the third preset range, the preset difference is the third difference, and the preset stop temperature is the third preset stop temperature.

[0087] If the initial laundry weight is within a fourth preset range, the preset difference is a fourth difference, and the preset stop temperature is a fourth preset stop temperature.

[0088] The difference and the preset stop temperature can be obtained through experiments. As shown in Table 1, the drying end condition is related to the initial clothing weight. Table 1 shows the initial clothing weight and the stop condition, which are as follows:

[0089] Table 1 Initial clothing weight and stop conditions

[0090] Initial laundry weight Less than 0.5KG 0.5KG-2KG 2KG-4KG More than 4KG Preset humidity value 25％-35％ 25％-35％ 25％-35％ 25％-35％ Preset stop temperature 50℃-52℃ 50℃-52℃ 50℃-52℃ 49℃-51℃ Preset Difference 11℃-13℃ 12℃-14℃ 15℃-17℃ 19℃-21℃

[0091] As can be seen from Table 1, the preset difference and the preset stop temperature will change with the change of the initial weight of the clothes. When the weight of the clothes put into the washing machine changes, the preset difference and the preset stop temperature will also change. Therefore, the initial weight of the clothes put into the washing machine can be detected to determine the corresponding preset difference and preset stop temperature to solve the problem of over-drying or incomplete drying.

[0092] The initial laundry weight refers to the weight of dry laundry before washing.

[0093] In some embodiments, Figure 3 As shown, an embodiment of the present application provides a washing machine, which is applied to the washing machine drying control method provided in the above embodiment, including:

[0094] Temperature sensor, the temperature sensor is used to detect the temperature value in the washing machine;

[0095] Heater;

[0096] A controller, wherein the controller is connected with the temperature sensor and the heater respectively;

[0097] The controller is configured as:

[0098] The temperature sensor detects the initial temperature value in the washing machine, controls the heater to start, and sets the maximum temperature to the initial temperature value;

[0099] Acquire the actual temperature value in the washing machine at preset intervals, and compare the actual temperature value with the initial temperature value;

[0100] If the actual temperature value is greater than the maximum temperature value, the maximum temperature value is changed to the actual temperature value;

[0101] If the actual temperature value is less than the maximum temperature value, the maximum temperature value is set as the calibration temperature value;

[0102] Calculate the difference between the calibrated temperature value and the actual temperature value;

[0103] If the difference is greater than the preset difference, the heater is controlled to be turned off.

[0104] In some embodiments, a humidity sensor is also included. The humidity sensor is disposed in the washing machine and is connected to the controller.

[0105] The controller is also configured to:

[0106] If the actual temperature value is less than the maximum temperature value, the maximum temperature value is set as the calibration temperature value;

[0107] obtaining the humidity value in the washing machine detected by the humidity sensor at a preset interval;

[0108] If the humidity value is less than the preset humidity value, the heater is controlled to be turned off.

[0109] In some embodiments, the controller is configured to:

[0110] If the difference is greater than the preset difference, the heater is controlled to be turned off;

[0111] If the actual temperature value is less than the opening temperature of the washing machine, the washing machine door is controlled to open.

[0112] In some embodiments, a weight module is further included, the weight module is disposed in the washing machine, and the weight module is connected to the controller;

[0113] The controller is configured as:

[0114] Obtaining the initial weight of clothes in the washing machine detected by the weight module;

[0115] If the initial laundry weight is within the first preset range, the preset difference is the first difference, and the preset stop temperature is the first preset stop temperature;

[0116] If the initial laundry weight is within the second preset range, the preset difference is the second difference, and the preset stop temperature is the second preset stop temperature;

[0117] If the initial laundry weight is within the third preset range, the preset difference is the third difference, and the preset stop temperature is the third preset stop temperature;

[0118] If the initial laundry weight is within a fourth preset range, the preset difference is a fourth difference, and the preset stop temperature is a fourth preset stop temperature.

[0119] It can be seen from the above technical scheme that the present application provides a washing machine drying control method and a washing machine, and the washing machine drying control method includes: obtaining the initial temperature value in the washing machine detected by the temperature sensor, and setting the maximum temperature as the initial temperature value; controlling the heater to start, obtaining the actual temperature value in the washing machine at a preset interval, and comparing the actual temperature value with the initial temperature value; if the actual temperature value is greater than the maximum temperature value, changing the maximum temperature value to the actual temperature value; if the actual temperature value is less than the maximum temperature value, setting the maximum temperature value to the calibrated temperature value; calculating the difference between the calibrated temperature value and the actual temperature value; if the difference is greater than the preset difference, controlling the heater to turn off. The maximum temperature in the drying process is obtained by real-time detection of the temperature in the washing machine, and judging whether the drying end condition is met according to the difference between the actual temperature value and the calibrated temperature value, so as to solve the problem of excessive or incomplete drying of clothes in the washing machine.

[0120] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A washing machine drying control method, characterized in that: include: Acquire an initial temperature value in the washing machine detected by a temperature sensor, and set the maximum temperature as the initial temperature value; Control heater start; Acquiring an actual temperature value in the washing machine at a preset interval, and comparing the actual temperature value with the initial temperature value; If the actual temperature value is greater than the maximum temperature value, the maximum temperature value is changed to the actual temperature value; If the actual temperature value is less than the maximum temperature value, the maximum temperature value is set as the calibration temperature value; Calculating the difference between the calibrated temperature value and the actual temperature value; If the difference is greater than a preset difference, the heater is controlled to be turned off.

2. The washing machine drying control method according to claim 1, characterized in that: After setting the maximum temperature value to a calibration temperature value, the method further includes: If the actual temperature value is less than the preset stop temperature, the heater is controlled to be turned off.

3. The washing machine drying control method according to claim 1, characterized in that: After setting the maximum temperature value to a calibration temperature value, the method further includes: obtaining the humidity value in the washing machine detected by the humidity sensor at a preset interval; If the humidity value is less than a preset humidity value, the heater is controlled to be turned off.

4. The washing machine drying control method according to claim 1, characterized in that: After controlling the heater to be turned off, the method further includes: If the actual temperature value is less than the opening temperature of the washing machine, the washing machine door is controlled to open.

5. The washing machine drying control method according to claim 1, characterized in that: Also includes: Get the initial weight of clothes in the washing machine; If the initial laundry weight is within a first preset range, the preset difference is a first difference, and the preset stop temperature is a first preset stop temperature; If the initial laundry weight is within a second preset range, the preset difference is a second difference, and the preset stop temperature is a second preset stop temperature; If the initial laundry weight is within a third preset range, the preset difference is a third difference, and the preset stop temperature is a third preset stop temperature; If the initial laundry weight is within a fourth preset range, the preset difference is a fourth difference, and the preset stop temperature is a fourth preset stop temperature.

6. A washing machine, applied to the washing machine drying control method according to any one of claims 1 to 5, characterized in that: include: A temperature sensor, wherein the temperature sensor is used to detect a temperature value in the washing machine; Heater; A controller, wherein the controller is connected to the temperature sensor and the heater respectively; The controller is configured to: Acquire an initial temperature value in the washing machine detected by a temperature sensor, and set the maximum temperature as the initial temperature value; Control heater start; Acquiring an actual temperature value in the washing machine at a preset interval, and comparing the actual temperature value with the initial temperature value; If the actual temperature value is greater than the maximum temperature value, the maximum temperature value is changed to the actual temperature value; If the actual temperature value is less than the maximum temperature value, the maximum temperature value is set as the calibration temperature value; Calculating the difference between the calibrated temperature value and the actual temperature value; If the difference is greater than a preset difference, the heater is controlled to be turned off.

7. The washing machine according to claim 6, characterized in that: It also includes a humidity sensor, which is arranged in the washing machine and connected to the controller; The controller is also configured to: If the actual temperature value is less than the maximum temperature value, the maximum temperature value is set as the calibration temperature value; obtaining the humidity value in the washing machine detected by the humidity sensor at a preset interval; If the humidity value is less than a preset humidity value, the heater is controlled to be turned off.

8. The washing machine according to claim 6, characterized in that: The controller is configured to: If the difference is greater than a preset difference, controlling the heater to be turned off; If the actual temperature value is less than the opening temperature of the washing machine, the washing machine door is controlled to open.

9. The washing machine according to claim 6, characterized in that: It also includes a weight module, which is disposed in the washing machine and connected to the controller; The controller is configured to: Obtaining the initial weight of clothes in the washing machine detected by the weight module; If the initial laundry weight is within a first preset range, the preset difference is a first difference, and the preset stop temperature is a first preset stop temperature; If the initial laundry weight is within a second preset range, the preset difference is a second difference, and the preset stop temperature is a second preset stop temperature; If the initial laundry weight is within a third preset range, the preset difference is a third difference, and the preset stop temperature is a third preset stop temperature; If the initial laundry weight is within a fourth preset range, the preset difference is a fourth difference, and the preset stop temperature is a fourth preset stop temperature.

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