A heating control method, electronic device, and laundry treating apparatus

Abstract

The present application relates to a kind of heating control method, electronic equipment and clothes processing equipment in the technical field of clothes processing equipment, when the first temperature variable T1 of temperature limiter is less than the temperature threshold Tj of temperature limiter, and the difference of the temperature threshold Tj of temperature limiter and the first temperature variable T1 of temperature limiter reaches set value ΔTd, it is judged whether the second temperature variable T2 of heating object reaches target heating temperature Ts, if the second temperature variable T2 of heating object does not reach target heating temperature Ts, the heating program automatically enters temperature compensation mode, in the temperature compensation mode, the second temperature variable T2 is assigned as T2', wherein T2 < T2', T2' ≥ Ts, can effectively avoid that heater frequently enters high temperature protection state, drying temperature fluctuation is small, drying effect is stable, and prolong the service life of heater.

Description

Technical Field

[0001] The present invention relates to the technical field of clothes drying, and in particular to a heating control method, electronic equipment and clothes processing equipment. Background Art

[0002] In the field of clothes drying related technology, under different ambient temperatures, for example, in cold weather, the heater requires higher heating power to achieve the target air inlet temperature. However, higher heating power can easily lead to excessively high surface temperature of the heater, thereby easily triggering the automatic disconnection of the temperature limiter. In hot weather, the opposite situation occurs, and the temperature limiter on the heater is not easy to disconnect.

[0003] For example, during the clothes drying process, the air inlet temperature sensor generally has a fixed preset temperature value. The temperature limiter on the heater is automatically disconnected due to the high surface temperature of the heater. At this time, if the air inlet temperature sensor has not reached the preset temperature value, the temperature limiter will be frequently started and stopped, resulting in a shortened heater life, poor drying heating effect, and long drying time. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that during the clothes drying process, if the air inlet temperature sensor does not reach the preset temperature value, the temperature limiter will be frequently started and stopped, resulting in a shortened heater life. A heating control method, electronic equipment and clothes processing equipment are provided.

[0005] The present invention provides a heating control method for a clothes processing device, wherein the clothes processing device includes a heater for providing electric heating to a heating object and a temperature limiter for temperature limiting protection of the heater, the control method comprising:

[0006] In response to the operation instruction of the heating program, setting the target heating temperature Ts of the heating object;

[0007] Starting the heater and monitoring the first temperature variable T1 of the temperature limiter and the second temperature variable T2 of the heating object in real time;

[0008] When the absolute value of the difference between the first temperature variable T1 and the temperature limit threshold Tj of the temperature limiter is less than or equal to the set value ΔTd, determining whether the second temperature variable T2 has reached the target heating temperature; wherein the first temperature variable T1 is the real-time temperature detection value of the temperature limiter during the heating process, the second temperature variable T2 is the real-time temperature detection value of the heating object during the heating process, and the temperature limit threshold Tj is the temperature threshold that triggers the temperature limiter to perform temperature limit protection on the heater;

[0009] If the second temperature variable T2 does not reach the target heating temperature, the heating program automatically enters the temperature compensation mode. In the temperature compensation mode, the heating program assigns the second temperature variable T2 to T2', where T2 <T2',T2'≥Ts。

[0010] In some embodiments, the heater is a heater for heating washing water or for heating drying air flow;

[0011] When the heater is a heater for heating washing water, the heating object is washing water, and the second temperature variable T2 is the temperature of the washing water.

[0012] When the heater is a heater for heating drying airflow, the heating object is the drying airflow, and the second temperature variable T2 is the drying air inlet temperature for providing drying air to the processing drum of the clothes processing device.

[0013] In some embodiments, T2'=Ts.

[0014] In some embodiments, the heating program assigns the second temperature variable T2 to T2', comprising:

[0015] The compensation amount X is added to the value of the second temperature variable T2 to assign the second temperature variable T2 to the target heating temperature Ts. The compensation amount is the difference between the target heating temperature and the second temperature variable T2 before temperature compensation, that is, X=Ts-T2.

[0016] In some embodiments, the heating program assigns the second temperature variable T2 to T2', comprising:

[0017] A compensation amount X is added to the value of the second temperature variable T2 to assign the second temperature variable T2 such that T2′ is greater than the target heating temperature Ts. X=Ts-T2+ΔT, where ΔT is a correction parameter.

[0018] In some embodiments, the heating program assigns the second temperature variable T2 to T2', comprising:

[0019] A compensation amount X is added to the value of the second temperature variable T2 to set the second temperature variable T2 to be greater than the target heating temperature Ts, where X=k×(Ts-T2), k is a correction coefficient, k>1, and × represents a product.

[0020] In some embodiments, after executing the temperature compensation mode, the heating control method further includes:

[0021] Determining whether the heater needs to continue working;

[0022] controlling the operating state of the heater according to a result of determining whether the heater needs to continue operating;

[0023] If it is necessary to continue working, control the heater to continue heating the heating object;

[0024] If it is not necessary to continue working, stop the heater and continue heating the heating object.

[0025] In some embodiments, when the heater is a heater for heating a drying airflow, determining whether the heater needs to continue operating includes:

[0026] Continue to obtain the second temperature variable T2 of the heating object and obtain the third temperature variable T3 of the heating object;

[0027] determining whether to control the heater to continue operating based on whether a difference between a second temperature variable T2 of the heating object and a third temperature variable T3 of the heating object reaches a preset difference; wherein the second temperature variable T2 is a drying air inlet temperature for providing drying air to a processing drum of the clothes processing device, and the third temperature variable T3 is a drying air outlet temperature for providing drying air to the processing drum of the clothes processing device;

[0028] If the difference between the second temperature variable T2 of the heating object and the third temperature variable T3 of the heating object is greater than or equal to the preset difference ΔTh, the heater is controlled to continue operating.

[0029] In some embodiments, an electronic device is provided, the electronic device comprising:

[0030] Memory, which stores computer instructions;

[0031] A processor is used to call and execute the computer instructions to implement the above heating control method.

[0032] In some embodiments, a clothes treating device is provided, which uses the above-mentioned heating control method or includes the above-mentioned electronic device.

[0033] The solution provided by the present invention has the following beneficial effects compared with the prior art:

[0034] In the heating control method, when the first temperature variable T1 of the thermostat is less than the temperature limit threshold Tj of the thermostat, and the difference between the temperature limit threshold Tj of the thermostat and the first temperature variable T1 of the thermostat reaches the set value △Td, it is determined whether the second temperature variable T2 of the heating object reaches the target heating temperature Ts. If the second temperature variable T2 of the heating object does not reach the target heating temperature Ts, the heating program automatically enters the temperature compensation mode. In the temperature compensation mode, the heating program assigns the second temperature variable T2 to T2', where T2 < T2' and T2' ≥ Ts. This can effectively prevent the heater from frequently entering the high-temperature protection state, with small fluctuations in the drying temperature, stable drying effect, and extended service life of the heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0036] Figure 1 is one of the flowcharts of the heating control method shown in the embodiments of the present invention;

[0037] Figure 2 is the second flowchart of the heating control method shown in the embodiments of the present invention.

[0038] It should be noted that these drawings and the textual descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention.

[0040] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "connection", "contact", "communication" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0041] During the clothes drying process, the air inlet temperature sensor generally has a fixed preset temperature value. The temperature limiter on the heater is automatically disconnected due to the high surface temperature of the heater. At this time, if the air inlet temperature sensor has not reached the preset temperature value, the temperature limiter will start and stop frequently, resulting in a shortened heater life, poor drying heating effect, and long drying time.

[0042] Based on this, the following embodiments are proposed.

[0043] Example 1:

[0044] like Figure 1 As shown, this embodiment provides a heating control method for a clothes processing device, wherein the clothes processing device includes a heater for providing electric heating to a heating object and a temperature limiter for temperature limiting protection of the heater. The control method includes:

[0045] In response to the operation instruction of the heating program, setting the target heating temperature Ts of the heating object;

[0046] Starting the heater and monitoring the first temperature variable T1 of the temperature limiter and the second temperature variable T2 of the heating object in real time;

[0047] When the absolute value of the difference between the first temperature variable T1 and the temperature limit threshold Tj of the temperature limiter is less than or equal to the set value ΔTd, determining whether the second temperature variable T2 has reached the target heating temperature; wherein the first temperature variable T1 is the real-time temperature detection value of the temperature limiter during the heating process, the second temperature variable T2 is the real-time temperature detection value of the heating object during the heating process, and the temperature limit threshold Tj is the temperature threshold that triggers the temperature limiter to perform temperature limit protection on the heater;

[0048] If the second temperature variable T2 does not reach the target heating temperature, the heating program automatically enters the temperature compensation mode. In the temperature compensation mode, the heating program assigns the second temperature variable T2 to T2', where T2 <T2',T2'≥Ts。

[0049] In this embodiment, the first and second temperature variables T1 of the temperature limiter and T2 of the heating object are used to distinguish the two temperature variables, and do not mean that the temperature limiter has a second variable and the heating object has a first variable.

[0050] Specifically, the heater is a heater for heating washing water or for heating drying air flow;

[0051] When the heater is a heater for heating washing water, the heating object is washing water, and the second temperature variable T2 is the temperature of the washing water.

[0052] When the heater is a heater for heating drying airflow, the heating object is the drying airflow, and the second temperature variable T2 is the drying air inlet temperature for providing drying air to the processing drum of the clothes processing device.

[0053] The following takes the application of the heating control method in the clothes drying control method as an example to illustrate

[0054] In hot weather, the inlet air temperature sensor module in the laundry processing device detects a lower heater temperature than in cold weather at the same temperature, making the temperature limiter less likely to trip. In cold weather, the heater is more likely to trip at the same temperature detected by the inlet air temperature sensor module. In other words, even if the program sets the inlet air temperature sensor module to detect the same temperature, the heater will need to heat to a higher temperature in cold weather than in hot weather, due to the influence of the ambient temperature. Therefore, when executing this laundry control method, the user initially sets a target heating temperature Ts. The heater then begins heating the drying duct and monitors the first temperature variable T1 of the temperature limiter and the temperature of the inlet air temperature sensor module, i.e., the second temperature variable T2 of the heating target, in real time. Before the first temperature variable T1 of the temperature limiter reaches the temperature limiter threshold Tj, the inlet air temperature sensor module measures the inlet air temperature in the drying duct and determines whether the actual drying inlet air temperature in the drying duct, i.e., the second temperature variable T2 of the heating target, has reached the target heating temperature Ts. Based on this determination, the user determines whether to enter the temperature compensation mode.

[0055] Specifically, assuming the temperature limiter threshold Tj, the actual drying air inlet temperature in the drying duct is T2, and the user sets the target heating temperature Ts, when the temperature limiter reaches M (M=Tj-1), the air inlet temperature sensor module determines whether the current actual drying air inlet temperature T2 has reached the target heating temperature Ts. If the actual drying air inlet temperature T2 is greater than or equal to the target heating temperature Ts, it indicates that the actual drying air inlet temperature has reached the target heating temperature Ts. At this time, the clothing processing device has a high drying efficiency for the clothes, and there is no need to activate the temperature compensation mode, thereby avoiding additional energy consumption of the clothing processing device. If the actual drying air inlet temperature T2 is less than the target heating temperature Ts, it indicates that the actual drying air inlet temperature has not reached the target heating temperature Ts. When the clothing processing device detects that the temperature of the heater's temperature limiter has reached M (M=Tj-1), but the actual drying air inlet temperature has not reached the target heating temperature Ts, the clothing processing device determines to enter the temperature compensation mode and begins executing it. This avoids frequent switching of the heater, thereby extending its service life and ensuring the normal operation of the clothing processing device.

[0056] In this embodiment, the actual drying air inlet temperature is the temperature monitored by the air inlet temperature sensor in the drying air duct. A certain error is allowed in this temperature, and the error range is, for example, -5% to +5%.

[0057] In this embodiment, in the temperature compensation mode, the heating program assigns the second temperature variable T2 to T2'. At this time, the temperature limiter of the heater has not reached the temperature limit, that is, the heater has not entered the high-temperature protection state and stopped working. Since the temperature compensation mode assigns the second temperature variable T2 to T2', the heater can enter the normal program to stop heating before reaching the temperature limiter of the temperature limiter, which can effectively prevent the heater from frequently entering the high-temperature protection state, extend the service life of the heater, and have less impact on the drying effect.

[0058] When the air inlet temperature sensing module matches the temperature limit threshold Tj of the temperature limiter, the software program controls the clothing processing device to automatically enter the temperature compensation mode. This can prevent the frequent switching on and off of the heater caused by the mismatch between the air inlet temperature sensing module and the temperature limit threshold Tj of the temperature limiter, causing the clothing processing device to be unable to operate normally, thereby extending the service life of the heater and reducing the energy consumption of the clothing processing device.

[0059] In this embodiment, the steps implemented before the first temperature variable T1 of the thermostat reaches the temperature limit threshold Tj of the thermostat are: monitoring the first temperature variable T1 of the thermostat, and since the temperature limit threshold Tj of the thermostat is fixed, calculating the difference between the temperature limit threshold Tj of the thermostat and the first temperature variable T1 of the thermostat, and comparing the calculation result with the set value △Td. When the difference between the temperature limit and the first temperature variable T1 of the thermostat reaches the set value △Td, the clothing processing device determines that the current state is before the first temperature variable T1 of the thermostat reaches its temperature limit value, and at this time the clothing processing device starts to execute subsequent steps.

[0060] Before the first temperature variable T1 of the thermo limiter reaches the temperature limit threshold Tj of the thermo limiter, the heater will continue to heat and will not stop working, and the actual drying air inlet temperature will continue to rise. If the actual drying air inlet temperature is measured before the first temperature variable T1 of the thermo limiter reaches the temperature limit threshold Tj of the thermo limiter, it is very likely that the clothes processing device will operate in the temperature compensation mode unnecessarily, resulting in an increase in energy consumption of the clothes processing device. Measuring the actual drying air inlet temperature before the first temperature variable T1 of the thermo limiter reaches the temperature limit threshold Tj of the thermo limiter, that is, when it reaches the set value △Td, can fully improve the utilization rate of the heat in the drying duct, so as to shorten the time required for drying clothes while avoiding additional increase in energy consumption of the clothes processing device.

[0061] This clothes drying control method has the following advantages:

[0062] 1. Improve security

[0063] The traditional means of avoiding frequent switching on and off of the heater is to increase the temperature limit threshold Tj of the temperature limiter. However, this drying control method actively compensates for the actual drying inlet air temperature by designing a temperature compensation mode, so that the heater can work under the standard temperature limit, reducing the risk of overheating of the heater, and keeping the drying temperature fluctuation small, which is conducive to stable drying and avoids the situation where the drying efficiency is slowed down due to sudden cessation of the heater. At the same time, it improves the safety inside the clothing processing equipment.

[0064] 2. Reduce hardware costs

[0065] Traditional methods of avoiding frequent switching on and off of the heater include increasing the thermal capacity of the clothing processing equipment. Specific methods include thickening the insulation layer, which leads to an increase in the size of the equipment and a delay in response. However, this drying control method actively compensates for the actual drying inlet air temperature by designing a temperature compensation mode, avoiding frequent switching on and off of the heater. There is no need to increase the overall thermal capacity of the equipment with additional hardware, thereby reducing hardware costs.

[0066] 3. Active prevention and protection instead of passive triggering

[0067] Traditional heaters rely on temperature limiters to passively shut down when high temperatures (approaching or reaching critical levels) occur. This protective action itself signals that the system is at risk. However, the temperature compensation mode in this drying control method compensates for the actual drying inlet air temperature before the temperature limiter is triggered, reducing the heater's workload and preventing high-temperature protection from triggering. This makes the heater more energy-efficient and extends its lifespan. It also minimizes drying temperature fluctuations, promoting stable drying and preventing sudden heater shutdowns that could slow drying efficiency.

[0068] Optionally, in one implementation of this embodiment,

[0069] T2'=Ts, the heating program assigns the second temperature variable T2 to T2', including:

[0070] The compensation amount X is added to the value of the second temperature variable T2 to assign the second temperature variable T2 to the target heating temperature Ts. The compensation amount is the difference between the target heating temperature and the second temperature variable T2 before temperature compensation, that is, X=Ts-T2.

[0071] In this embodiment, before the first temperature variable T1 of the temperature limiter reaches the temperature limit threshold Tj of the temperature limiter, if heating continues, the heater will stop working under the action of the temperature limit. That is to say, the actual drying air inlet temperature measured at this time is the highest temperature that the drying air duct can reach under this environment. If heating is still performed based on the preset drying air inlet temperature, the heater will be frequently turned on and off, which will not only increase the failure rate of the heater, but also reduce the drying efficiency of the clothes.

[0072] Therefore, through the temperature compensation mode, the actual drying air inlet temperature is compensated to be equal to the preset drying air inlet temperature, which can avoid the heater from being repeatedly turned on and off, thereby ensuring the normal operation of the clothing processing equipment and keeping the clothes in a stable and continuous drying state. This not only reduces the failure rate of the heater, but also improves the drying efficiency of the clothes.

[0073] In temperature compensation mode, where X is a program-set compensation amount equal to the difference between the target heating temperature Ts and the second temperature variable T2 before temperature compensation, the compensation amount is added to the actual drying inlet air temperature to equal the target heating temperature Ts. In other words, the value transmitted to the system by the inlet air temperature sensor is a false value, not the actual inlet air drying temperature. This allows the entire clothing processing device system to detect that the actual drying inlet air temperature is equal to the target heating temperature Ts, thereby reducing the workload of the heater and preventing the heater from continuing to operate at high power due to the system not detecting that the actual drying inlet air temperature has reached the target heating temperature Ts, triggering temperature limiting and entering a high-temperature protection state. This fundamentally avoids triggering high-temperature protection. This makes the heater more energy-efficient and extends its lifespan. It also keeps drying temperature fluctuations minimal, promoting stable drying and preventing sudden heater shutdowns that could slow drying efficiency.

[0074] Preferably, the heating program assigns the second temperature variable T2 to T2', comprising:

[0075] A compensation amount X is added to the value of the second temperature variable T2 to set the second temperature variable T2 to be greater than the target heating temperature Ts, X=Ts-T2+ΔT, where ΔT is a correction parameter.

[0076] Preferably, the heating program assigns the second temperature variable T2 to T2', comprising:

[0077] A compensation amount X is added to the value of the second temperature variable T2 to set the second temperature variable T2 to be greater than the target heating temperature Ts, where X=k×(Ts-T2), k is a correction coefficient, and k>1.

[0078] Specifically, assuming the temperature limiter threshold Tj is 120°C and the set value ΔTd is set to 1°C, the temperature compensation mechanism is triggered when the temperature limiter reaches 119°C. At this time, if the user's target heating temperature Ts is 80°C, but the actual drying air inlet temperature T2 detected is only 75°C, the control board immediately executes the temperature compensation process.

[0079] The calculation logic for the compensation temperature X can be optimized as X = Ts - T2 + ΔT = 5 + ΔT, where ΔT is a correction parameter used for temperature correction. It ranges from 0.5 to 1.5°C and is dynamically adjusted based on historical data to address compensation errors caused by response delays in each temperature sensor and to avoid repeatedly entering the temperature mode.

[0080] Specifically, in terms of ambient temperature adaptability, when the ambient temperature is detected to be below 5°C, the low-temperature compensation enhancement mode is automatically activated, increasing the calculation base of the compensation temperature X by 10%, that is, k = 1.1, or X = 1.1 × (Ts - T2). This prevents compensation failure due to insufficient heater power in cold weather. When the ambient temperature exceeds 30°C, dynamic adjustment of the high-temperature protection threshold is activated, temporarily raising the temperature limiter disconnection temperature N by 5°C. This prevents over-compensation caused by excessively high ambient temperatures and ensures stable operation of the device within an ambient temperature range of -10°C to 40°C.

[0081] Furthermore, a fuzzy control algorithm can be incorporated into this control method to optimize the temperature compensation process. Based on the dual parameters of the temperature limiter's temperature rise rate (dT / dt) and the difference between the actual drying air inlet temperature and the preset drying air inlet temperature (Ts-T2), the temperature compensation modes are divided into three categories: mild compensation (dT / dt < 2°C / s and Ts-T2 < 5°C), moderate compensation (2°C / s ≤ dT / dt < 5°C / s or 5°C ≤ Ts-T2 < 10°C), and deep compensation (dT / dt ≥ 5°C / s and Ts-T2 ≥ 10°C). The control motherboard can adopt different compensation strategies in different modes: X=Ts-T2+1℃ for light compensation, X=Ts-T2+3℃ for medium compensation, and X=Ts-T2+5℃ for deep compensation, and is combined with heater power graded adjustment, namely: maintain 80% power for light compensation, increase to 90% for medium compensation, and enable 100% power for deep compensation, thereby enabling refined temperature control of the clothing processing equipment.

[0082] Optionally, in an implementation of this embodiment, as Figure 2 As shown,

[0083] After executing the temperature compensation mode, the heating control method further includes:

[0084] Determining whether the heater needs to continue working;

[0085] controlling the operating state of the heater according to a result of determining whether the heater needs to continue operating;

[0086] If it is necessary to continue working, control the heater to continue heating the heating object;

[0087] If it is not necessary to continue working, the heater is controlled to stop working.

[0088] When the heater is a heater for heating a drying airflow, determining whether the heater needs to continue to work includes:

[0089] Continue to obtain the second temperature variable T2 of the heating object and obtain the third temperature variable T3 of the heating object;

[0090] determining whether to control the heater to continue operating based on whether a difference between a second temperature variable T2 of the heating object and a third temperature variable T3 of the heating object reaches a preset difference; wherein the second temperature variable T2 is a drying air inlet temperature for providing drying air to a processing drum of the clothes processing device, and the third temperature variable T3 is a drying air outlet temperature for providing drying air to the processing drum of the clothes processing device;

[0091] If the difference between the second temperature variable T2 of the heating object and the third temperature variable T3 of the heating object is greater than or equal to the preset difference ΔTh, the heater is controlled to continue operating.

[0092] Preferably, the preset difference is ΔTh, wherein: ΔTh>8°C.

[0093] In this embodiment, when the clothing processing device enters temperature compensation mode, the inlet air temperature sensor module first detects the target heating temperature Ts set by the user. Simultaneously, the program mainboard determines whether the heater needs to continue heating. If the program mainboard determines that the heater no longer needs to heat, the clothing processing device operates normally and cools down until the end of operation. If the program mainboard determines that the heater needs to continue heating, and the difference between the actual drying inlet air temperature T2 and the actual drying outlet air temperature T3 is equal to ΔTh degrees Celsius, that is, the difference between the actual drying inlet air temperature and the actual drying outlet air temperature reaches a preset difference, the program mainboard controls the heater to turn on and continue heating the drying duct. If the difference between the actual drying inlet air temperature T2 and the actual drying outlet air temperature does not reach ΔTh degrees Celsius, the heater can be controlled to stop operating or to reduce its power to save energy and prevent the first temperature variable T1 of the temperature limiter from reaching the temperature limit. If the actual drying inlet air temperature T2 is detected to be equal to the target heating temperature Ts at this time, it indicates that the temperature in the drying duct has reached the user-set target heating temperature Ts. There is no need to enter the temperature compensation mode, and at this time, it is determined whether the heater needs to continue heating the drying duct. If it is determined that the heater does not need to continue heating, the clothing processing device will normally perform the subsequent steps and cool down until the operation ends. If the heater needs to continue heating the drying duct, when the difference between the actual drying air inlet temperature T2 and the actual drying air outlet temperature is equal to ΔTh degrees Celsius, that is, when the difference between the actual drying air inlet temperature and the actual drying air outlet temperature reaches the preset difference, the program motherboard will control the heater to turn on and continue heating the drying duct.

[0094] Preferably, the control method can also set up special protection mechanisms for extreme working conditions:

[0095] High temperature overload protection: When the first temperature variable T1 of the temperature limiter rises rapidly to above the limit temperature (Tj-5)°C within 10 seconds, the control board determines that the heater is overloaded, immediately cuts off the heating power, starts the forced cooling fan (power 20W), and displays the fault code E03. Manual reset is required and the heater and air duct must be checked.

[0096] Low-temperature start-up optimization: When the ambient temperature is less than 0°C, the device starts the preheating process: first preheat the heater at 500W power for 3 minutes, while the drum rotates at a low speed (300 rpm) to prevent abnormal data detected by the air inlet temperature sensor module due to low temperature. After the preheating is completed, the normal drying process will be entered.

[0097] When used in high-altitude areas (>1000m), the control board automatically activates altitude compensation mode through a preset program: it calculates the air density correction factor based on the altitude (obtained by the air pressure sensor). For every 1000m increase in altitude, the target heating temperature Ts is increased by 3°C and the compensation amount X is increased by 1°C. This avoids the decrease in heating efficiency caused by thin air and ensures consistent drying effect at altitudes below 3000m.

[0098] In this embodiment, if the clothing processing device determines that the heater still needs to continue working, the difference between the measured actual drying air inlet temperature and the actual drying air outlet temperature is calculated, and the calculation result is compared with the preset difference, and it is determined whether to start the heater based on the comparison result. If the actual drying inlet air temperature and the actual drying outlet air temperature do not reach the preset difference, it means that the temperature in the drying duct is relatively stable. For example, under the condition of ΔTh=10°C, if the difference between the actual drying inlet air temperature and the actual drying outlet air temperature is 8°C, then the difference is relatively small, indicating that the temperature in the drying duct is relatively stable and the actual drying inlet air temperature can meet the current drying requirements of the clothes. Therefore, no additional heating by the heater is required, thereby reducing the energy consumption of the clothes processing equipment. If the difference between the actual drying inlet air temperature and the actual drying outlet air temperature is equal to or greater than the preset difference, if the difference between the actual drying inlet air temperature and the actual drying outlet air temperature is 15°C, then the difference is relatively large, indicating that the clothes in the drying duct have absorbed a large amount of heat energy and the actual drying inlet air temperature can no longer meet the current drying requirements of the clothes. Therefore, the heater is required to heat the drying duct to increase the actual drying inlet air temperature, thereby improving the drying efficiency of the clothes processing equipment.

[0099] More specifically, △Th>8℃. When the preset difference △Th is greater than 8℃, when the humidity in the drying duct is higher, the time to reach this temperature difference is shorter, and the heater is turned on faster, which is conducive to rapid heating and drying. When the clothes are drier and the humidity in the drying duct is lower, the heater is turned on more slowly, which is conducive to protecting the clothes.

[0100] Preferably, the judgment logic of the heater working status can be further refined in the execution stage. The collection point of the actual drying air outlet temperature is set 5 cm behind the drying drum outlet, and the TsT1000 sensor of the same model as the inlet temperature sensor is used to ensure the consistency of temperature detection. The dynamic adjustment mechanism of the preset difference △Th is as follows:

[0101] When the moisture content of the drying load is greater than 50%, △Th=15℃, allowing a larger temperature difference to improve heating efficiency;

[0102] When the moisture content is ≤50% and >20%, △Th=13℃, balancing drying efficiency and energy consumption;

[0103] When the moisture content is ≤20%, △Th=10℃ to prevent damage to clothes caused by over-drying.

[0104] A hysteresis control loop has been added to the heater activation process: Heating only starts when the difference between the actual drying air inlet temperature and the actual drying air outlet temperature is greater than or equal to ΔTh + Δt°C, preventing frequent heater starts and stops due to small temperature fluctuations. For example, if Δt = 1°C and ΔTh = 13°C, heating starts when the difference is greater than or equal to 14°C and stops when the difference is less than or equal to once every 10 minutes, effectively extending its service life. The hysteresis loop width is 1°C, which can control the heater's start-stop frequency and lifespan.

[0105] In this control method, if the actual drying air inlet temperature reaches the target heating temperature Ts, it means that the current actual drying air inlet temperature has reached the highest temperature that the drying air duct can reach under this environment. At this time, if the heater does not need to continue working, it means that there is no need to continue heating the drying air duct, and the subsequent steps can be continued to reduce the operating energy consumption of the clothing processing equipment. If the heater needs to continue working, it means that the clothes need to continue drying, and the drying air duct needs to continue heating, and the heater needs to be restarted. The drying control method executed at the preset air inlet temperature has already met the actual drying air inlet temperature reaching the target heating temperature Ts before the heater temperature limit during the previous operation process, and will not cause the heater to enter high temperature protection due to reaching the temperature limit. Therefore, the preset air inlet temperature is relatively reasonable and does not require adjustment. It can continue to heat the drying air duct and avoid repeated switching of the heater, thereby further improving the drying efficiency of the clothing processing equipment.

[0106] Example 2

[0107] This embodiment provides an electronic device, the electronic device including:

[0108] Memory, which stores computer instructions;

[0109] The processor is used to call and execute computer instructions to implement the heating control method in the first embodiment.

[0110] In this embodiment, the electronic device includes a memory and a processor. The memory is used to store computer instructions, and the processor is used to call and execute the computer instructions, thereby implementing the heating control method of Example 1. Because the electronic device can execute the heating control method of Example 1, it has all the beneficial effects of the heating control method of Example 1 and is not further described here.

[0111] Furthermore, a fault diagnosis and fault-tolerance module can be incorporated into the electronic device. If an abnormal trend in the temperature limiter and the actual drying inlet air temperature is detected—for example, a rapid rise in the temperature limiter while the actual drying inlet air temperature remains unchanged for more than 10 seconds—the system identifies a sensor failure and immediately activates a backup temperature model (based on a temperature-time curve fitted from historical data) to maintain the drying process. The system also outputs a fault code (e.g., E01 for a temperature limiter sensor abnormality, E02 for an inlet air temperature sensor abnormality) on the T2CD display. The fault information is also stored in the data logging area for easy after-sales repairs.

[0112] Example 3

[0113] This embodiment provides a clothes processing device, which uses the heating control method in the first embodiment or includes the electronic device in the second embodiment.

[0114] In this embodiment, the clothing processing device can be a device such as a drum washing machine that can dry clothing. The clothing processing device can directly execute the heating control method of Example 1 to dry clothing. Alternatively, the clothing processing device can be provided with the electronic device of Example 2, and the electronic device of Example 2 can be used to execute the heating control method of Example 1 to dry clothing. Since the clothing processing device can directly execute the heating control method of Example 1 or is provided with the electronic device of Example 2, the clothing processing device has all the beneficial effects of the heating control method of Example 1 or the electronic device of Example 2, and no further details are given here.

[0115] The structure of this clothing processing device is optimized in multiple dimensions. The drying duct adopts a dual-circulation design, with the main duct responsible for heated air delivery and the secondary duct for temperature balancing. Honeycomb-shaped deflectors, with 5mm spacing and a 30° angle, are installed within the main duct to evenly distribute the heated air and reduce temperature gradients within the duct (target temperature difference ≤ 2°C). The secondary duct inlet is located 10cm behind the main duct heater, and the outlet is located at the top of the drying drum. A micro fan (5W power) drives air circulation, further improving temperature uniformity. The inner wall of the drying drum features a corrugated design with a peak height of 8mm and a pitch of 30mm. This increases the contact area between clothing and the hot air, and has been shown to improve drying efficiency by 15%. A nano-scale far-infrared coating (5μm thick) is applied to the drum wall. During heating, it radiates far-infrared radiation with a wavelength of 4-14μm, resonating with water molecules and accelerating evaporation. This significantly improves drying efficiency for delicate fabrics such as wool and silk, reducing drying time by 20%.

[0116] Preferably, the clothes processing device can also develop exclusive modes for different application scenarios:

[0117] Thick fabric mode: Suitable for down jackets, blankets, etc. The target heating temperature Ts is set to 85℃, the temperature limit N=125℃, and the set value △Td is 2℃. When the first temperature variable T1 of the temperature limiter reaches 123℃, the compensation is started. At this time, the actual drying air inlet temperature is 80℃, the compensation amount X=85-80+3=8℃, and each heating cycle is extended to 15 minutes (10 minutes in standard mode) to ensure that the deep moisture of thick fabrics is fully evaporated.

[0118] Fast drying mode: For shirts, T-shirts, etc., the target heating temperature Ts = 90 ° C, the temperature limit N = 130 ° C, and the set value △Td is 1 ° C. When the first temperature variable T1 of the temperature limiter reaches 129 ° C, compensation is started. At this time, the actual drying air inlet temperature is 85 ° C, and the compensation amount X = 90-85+5 = 10 ° C. At the same time, the heater power is increased to 1200W (1000W in standard mode), and the drum rotates at high speed (800 rpm) to achieve fast drying within 30 minutes.

[0119] Energy-saving mode: When the ambient temperature is ≥25℃, the target heating temperature Ts=75℃, the temperature limit N=115℃, and the set value △Td is 3℃. When the first temperature variable T1 of the temperature limiter reaches 112℃, compensation is started. At this time, the actual drying air inlet temperature is 72℃, the compensation amount X=75-72=3℃, and the intermittent heating strategy is enabled (heating for 5 minutes and stopping for 2 minutes) to achieve energy-saving effect.

[0120] The device also integrates IoT functionality, connecting to a cloud server via a Wi-Fi module (supporting 802.11b / g / n). Users can remotely monitor drying status via their mobile phone's △ThTs app, viewing real-time data such as the temperature limiter, inlet air temperature, and compensation times. △ThTs also provides an intelligent reminder function. When the system detects that a component (such as the heater) has reached a preset maintenance interval (e.g., 500 hours), it automatically sends a maintenance notification. Furthermore, the cloud server collects operating data from multiple devices, continuously optimizes the temperature compensation algorithm through big data analysis, and regularly pushes firmware updates to the devices, ensuring continuous functional evolution.

[0121] In summary, the ingenious idea of ​​the heating control method is:

[0122] First, when the first temperature variable T1 of the thermostat is less than the temperature limit threshold Tj of the thermostat, and the difference between the temperature limit threshold Tj of the thermostat and the first temperature variable T1 of the thermostat reaches the set value △Td, it is determined whether the second temperature variable T2 of the heating object reaches the target heating temperature Ts. If the second temperature variable T2 of the heating object does not reach the target heating temperature Ts, the heating program automatically enters the temperature compensation mode. In the temperature compensation mode, the heating program assigns the second temperature variable T2 to T2', where T2 < T2' and T2' ≥ Ts. This can effectively prevent the heater from frequently entering the high-temperature protection state, with small fluctuations in the drying temperature, stable drying effect, and extended service life of the heater.

[0123] Second, an additional compensation amount X is added to the value of the second temperature variable T2, and the second temperature variable T2 is assigned to the target heating temperature Ts. The compensation amount is the difference between the target heating temperature and the second temperature variable T2 before temperature compensation, thereby reducing the working burden of the heater, preventing the heater from continuously operating at high power and triggering temperature limit due to the system not detecting that the actual drying inlet air temperature reaches the target heating temperature Ts, and entering the high-temperature protection state. This avoids triggering high-temperature protection at the source, making the heater more energy-efficient and having an extended lifespan. It also keeps the drying temperature fluctuations small, facilitating stable drying, and preventing the situation where the sudden stop of the heater slows down the drying efficiency.

[0124] Third, when the preset difference △Th is greater than 8°C, the higher the humidity in the drying air duct, the shorter the time to reach this temperature difference, and the faster the heater is turned on, which is beneficial for rapid heating and drying. When the clothes are relatively dry and the humidity in the drying air duct is low, the heater is turned on more slowly, which is beneficial for protecting the clothes.

[0125] It can be further understood that in this disclosure, "multiple" means two or more, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the preceding and following associated objects. The singular forms of "a", "the", and "said" also aim to include the plural forms, unless the context clearly indicates otherwise. [[ID=ll]]

[0126] It can be further understood that the terms "first", "second", etc. are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not represent a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of this disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0127] It is further understood that although operations are described in a particular order in the drawings in the embodiments of the present disclosure, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the operations shown be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0128] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow from the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0129] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. A heating control method for a clothes processing device, wherein the clothes processing device comprises a heater for providing electric heating to a heating object and a temperature limiter for temperature limiting protection of the heater, characterized in that: The control method includes: In response to the operation instruction of the heating program, setting the target heating temperature Ts of the heating object; Starting the heater and monitoring the first temperature variable T1 of the temperature limiter and the second temperature variable T2 of the heating object in real time; When the absolute value of the difference between the first temperature variable T1 and the temperature limit threshold Tj of the temperature limiter is less than or equal to the set value ΔTd, determining whether the second temperature variable T2 has reached the target heating temperature Ts; wherein the first temperature variable T1 is the real-time temperature detection value of the temperature limiter during the heating process, the second temperature variable T2 is the real-time temperature detection value of the heating object during the heating process, and the temperature limit threshold Tj is the temperature threshold that triggers the temperature limiter to perform temperature limit protection on the heater; If the second temperature variable T2 does not reach the target heating temperature Ts, the heating program automatically enters the temperature compensation mode. In the temperature compensation mode, the heating program assigns the second temperature variable T2 to T2', where T2 <T2',T2'≥Ts。 2. The heating control method according to claim 1, characterized in that: The heater is a heater used for heating washing water or heating drying air flow; When the heater is a heater for heating washing water, the heating object is washing water, and the second temperature variable T2 is the temperature of the washing water; When the heater is a heater for heating drying airflow, the heating object is the drying airflow, and the second temperature variable T2 is the drying air inlet temperature for providing drying air to the processing drum of the clothes processing device.

3. The heating control method according to claim 2, characterized in that: T2'=Ts.

4. The heating control method according to claim 3, characterized in that: The heating program assigns the second temperature variable T2 to T2', including: The compensation amount X is added to the value of the second temperature variable T2 to assign the second temperature variable T2 to the target heating temperature Ts. The compensation amount is the difference between the target heating temperature and the second temperature variable T2 before temperature compensation, that is, X=Ts-T2.

5. The heating control method according to claim 2, characterized in that: The heating program assigns the second temperature variable T2 to T2', including: A compensation amount X is added to the value of the second temperature variable T2 to assign the second temperature variable T2 such that T2′ is greater than the target heating temperature Ts. X=Ts-T2+ΔT, where ΔT is a correction parameter.

6. The heating control method according to claim 2, characterized in that: The heating program assigns the second temperature variable T2 to T2', including: A compensation amount X is added to the value of the second temperature variable T2 to set the second temperature variable T2 to be greater than the target heating temperature Ts, where X=k×(Ts-T2), k is a correction coefficient, k>1, and × represents a product.

7. The heating control method according to any one of claims 1 to 6, characterized in that: After executing the temperature compensation mode, the heating control method further includes: Determining whether the heater needs to continue working; controlling the operating state of the heater according to a result of determining whether the heater needs to continue operating; If it is necessary to continue working, control the heater to continue heating the heating object; If it is not necessary to continue working, the heater is controlled to stop working.

8. The heating control method according to claim 7, characterized in that: When the heater is a heater for heating a drying airflow, determining whether the heater needs to continue to work includes: Continue to obtain the second temperature variable T2 of the heating object and obtain the third temperature variable T3 of the heating object; determining whether to control the heater to continue operating based on whether a difference between a second temperature variable T2 of the heating object and a third temperature variable T3 of the heating object reaches a preset difference value ΔTh; wherein the second temperature variable T2 is a drying air inlet temperature for providing drying air to a processing drum of the clothes processing device, and the third temperature variable T3 is a drying air outlet temperature for providing drying air to the processing drum of the clothes processing device; If the difference between the second temperature variable T2 of the heating object and the third temperature variable T3 of the heating object is greater than or equal to the preset difference ΔTh, the heater is controlled to continue operating.

9. An electronic device, characterized in that: The electronic device comprises: Memory, which stores computer instructions; A processor is used to call and execute the computer instructions to implement the heating control method according to any one of claims 1 to 8.

10. A clothes processing device, characterized in that: The laundry processing device uses the heating control method according to any one of claims 1 to 8, or includes the electronic device according to claim 9.

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