A laundry drying control method, an electronic device, and a laundry treatment apparatus

Abstract

The present application relates to the technical field of clothes processing equipment, and relates to a clothes drying control method, an electronic device and clothes processing equipment.The control method comprises the following steps: in a drying process, the working state of a drying air supply device is acquired; whether the preset drying inlet air temperature needs to be adjusted is determined according to the working state of the drying air supply device; and in the case where it is determined that the preset drying inlet air temperature needs to be adjusted, the preset drying inlet air temperature is adjusted according to an inlet air temperature adjustment strategy.Through the execution of the clothes drying control method, the clothes processing equipment can be controlled to perform drying treatment on clothes, the risk that the drying air supply device is frequently started and stopped due to excessively high temperature of the drying air supply device can be reduced, the normal execution of the clothes drying control method can be ensured, and the drying efficiency of the clothes processing equipment on clothes can be improved.

Description

Technical Field

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

[0002] In the field of clothing drying, the temperature detected by drying air supply equipment, such as the fan, varies depending on ambient temperature. This means that the fan temperature is determined by both the weather and the temperature of the heating element. While the preset heating element temperature remains constant, hot weather conditions create a high-temperature environment for the fan, leading to heat accumulation and difficulty dissipating heat. This increases the risk of the fan overheating, triggering overheat protection and consequently suspending operation. This can cause the fan to frequently cycle on and off, shortening its lifespan. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that during the clothes drying process, when the preset heating temperature of the heating tube is the same, when the weather is hot, the environment in which the fan is located is a high-temperature environment, resulting in heat accumulation and difficulty in heat dissipation. The fan is easily overheated and enters overheat protection and then suspends operation, causing the fan to frequently turn on and off, resulting in a shortened life of the fan. Provided are a clothes drying control method, electronic equipment and clothes processing equipment.

[0004] The present invention aims to provide a clothes drying control method, comprising:

[0005] During the drying process, obtain the working status of the drying air supply equipment;

[0006] determining whether to adjust the preset drying air inlet temperature according to the working status of the drying air supply device;

[0007] When it is determined that the preset drying air inlet temperature needs to be adjusted, adjusting the preset drying air inlet temperature according to the air inlet temperature adjustment strategy;

[0008] The drying air supply device includes a heater; determining whether to adjust the preset drying air inlet temperature according to the working state of the drying air supply device, and adjusting the preset drying air inlet temperature according to the air inlet temperature adjustment strategy when it is determined that the preset drying air inlet temperature needs to be adjusted, including: determining whether to lower the preset drying air inlet temperature according to whether the heater enters a high-temperature protection state, and lowering the preset drying air inlet temperature if the heater enters the high-temperature protection state;

[0009] Or, the drying air supply device includes a heater and a drying fan; the determination of whether to adjust the preset drying inlet air temperature is based on the working status of the drying air supply device, and when it is determined that the preset drying inlet air temperature needs to be adjusted, the preset drying inlet air temperature is adjusted according to the inlet air temperature adjustment strategy, including: judging whether the heater enters a high-temperature protection state; if the heater is working but not entering the high-temperature protection state, determining whether to lower the preset drying inlet air temperature based on whether the drying fan is working, and if the drying fan is not working, lowering the preset drying inlet air temperature.

[0010] In some embodiments, lowering the preset drying air inlet temperature includes: lowering the preset drying air inlet temperature X (m) to X (mt);

[0011] Among them, X(m)=B+j(m), X(mt)=B+j(mt);

[0012] B is the external ambient temperature value, m is the temperature threshold that triggers the temperature limiter of the heater to perform temperature limit protection on the heater, j(m) is a function of m, j(mt) is a function of mt, j(m)=i×m, j(mt)=i×(mt), i is the influence coefficient of the heater on the preset drying inlet air temperature under the current ambient temperature and load conditions of the clothing processing equipment, and t is a constant greater than zero.

[0013] In some embodiments, the drying fan has a high temperature protection temperature threshold h;

[0014] If the drying fan does not work, lowering the preset drying air inlet temperature includes:

[0015] When the first temperature variable T1 of the drying fan reaches h, the preset drying air inlet temperature is lowered;

[0016] The first temperature variable T1 represents the temperature value obtained by real-time detection of the drying fan, h=A+y(n), A is the external environment temperature value, n represents the temperature value obtained by real-time detection of the heater, and y(n) is a function of n.

[0017] In some embodiments, y(n)=k×n, where k is an adjustment coefficient and the value of k ranges from 0.2 to 0.5.

[0018] In some embodiments, if the drying fan does not work, lowering the preset drying air inlet temperature includes:

[0019] determining whether the drying fan is working according to whether the control signal of the drying fan is a valid signal and whether the drying fan outputs power;

[0020] If the control signal of the drying fan is a valid signal and the drying fan has no output power, it is determined that the drying fan is not working, and the preset drying air inlet temperature is lowered.

[0021] In some embodiments, the clothes drying control method further includes:

[0022] If the drying fan is working, the preset drying air inlet temperature is maintained;

[0023] If the drying fan is working, maintaining the preset drying air inlet temperature includes:

[0024] determining whether the drying fan is working according to whether the control signal of the drying fan is a valid signal and whether the drying fan outputs power;

[0025] If the control signal of the drying fan is a valid signal and the drying fan has output power, it is determined that the drying fan is working, and the preset drying air inlet temperature is maintained.

[0026] In some embodiments, an electronic device is provided, the electronic device comprising:

[0027] Memory, which stores computer instructions;

[0028] A processor is used to call and execute the computer instructions to implement the above-mentioned clothes drying control method.

[0029] In some embodiments, a clothes treating device is provided, which uses the above clothes drying control method or includes the above electronic device.

[0030] The solution provided by the present invention has the following beneficial effects compared with the prior art:

[0031] A clothes drying control method is provided, which controls a clothes processing device to dry clothes by executing the clothes drying control method. This method can reduce the risk of a drying air supply device frequently starting and stopping due to its own high temperature, thereby ensuring the normal execution of the clothes drying control method and improving the clothes drying efficiency of the clothes processing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0033] Figure 1This is one of the flow charts of the clothes drying control method shown in an embodiment of the present invention;

[0034] Figure 2 This is the second flow chart of the clothes drying control method shown in the embodiment of the present invention;

[0035] Figure 3 This is the third flow chart of the clothes drying control method shown in an embodiment of the present invention.

[0036] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] In the description of the present invention, it should be noted that the terms "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are 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 therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "in contact," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0039] During the clothes drying process, the drying air supply equipment, such as heaters and drying fans, when the preset heating temperature of the heating tube is the same, when the weather is hot, the fan is in a high-temperature environment, resulting in heat accumulation and difficulty in heat dissipation. The fan is more likely to enter overheating protection due to overheating and then suspend operation, causing the fan to frequently switch on and off, resulting in a shortened fan life.

[0040] Based on this, the following embodiments are proposed.

[0041] Example 1:

[0042] like Figure 1-3 As shown, this embodiment provides a clothes drying control method, including:

[0043] During the drying process, obtain the working status of the drying air supply equipment;

[0044] determining whether to adjust the preset drying air inlet temperature according to the working status of the drying air supply device;

[0045] When it is determined that the preset drying air inlet temperature needs to be adjusted, adjusting the preset drying air inlet temperature according to the air inlet temperature adjustment strategy;

[0046] In this embodiment, when the drying air supply device includes a heater;

[0047] The determining whether to adjust the preset drying air inlet temperature according to the working state of the drying air supply device; and adjusting the preset drying air inlet temperature according to the air inlet temperature adjustment strategy when it is determined that the preset drying air inlet temperature needs to be adjusted, includes:

[0048] Whether to lower the preset drying air inlet temperature is determined according to whether the heater enters the high temperature protection state. If the heater enters the high temperature protection state, the preset drying air inlet temperature is lowered.

[0049] When the drying air supply device includes a heater and a drying air blower;

[0050] The determining whether to adjust the preset drying air inlet temperature according to the working state of the drying air supply device; and adjusting the preset drying air inlet temperature according to the air inlet temperature adjustment strategy when it is determined that the preset drying air inlet temperature needs to be adjusted, includes:

[0051] Determining whether the heater has entered a high temperature protection state;

[0052] If the heater is working but does not enter the high temperature protection state, whether to lower the preset drying air inlet temperature is determined based on whether the drying fan is working. If the drying fan is not working, the preset drying air inlet temperature is lowered.

[0053] The laundry drying control method can be used to control a laundry processing device to dry laundry. The laundry processing device is provided with a heater and a drying fan. When executing the control method, the control board in the laundry processing device can determine whether to lower a preset drying air inlet temperature based on whether the heater is working.

[0054] Specifically, if the control board detects that the heater is in the working state, it means that the heater's temperature limiter is not disconnected at this time, and the heater is operating normally. The control board can continue to execute the subsequent steps of the control method. If the control board detects that the heater is not in the working state, it means that the heater has caused the temperature limiter to disconnect due to the increase in its own temperature, causing the heater to be in the power-off protection state. However, the drying process of the clothes has not been completed at this time, and the drying air duct should be continuously heated. At this time, the control board lowers the preset drying inlet air temperature to re-derive the preset drying inlet air temperature, and continues to execute the clothes drying control method based on the re-derived preset drying inlet air temperature. The re-derived preset drying inlet air temperature is lower than the initial preset drying inlet air temperature, and the re-derived preset drying inlet air temperature can match the disconnection temperature of the temperature limiter. Therefore, the target heating temperature of the heater is also reduced accordingly. This can prevent the heater from frequently entering the power-off protection state, thereby ensuring the normal execution of the drying method and improving the drying efficiency of the clothes processing device. If the control board detects that the heater is in the operating state, it means that the heater temperature limiter is not disconnected at this time, and the heater is heating the drying air duct. At this time, the control board starts to detect the operating state of the drying fan and determines whether to lower the preset drying inlet air temperature based on whether the drying fan is in the operating state. If the control board detects that the drying fan is not in the operating state, it means that the drying fan has become too hot due to the heat exchange in the drying air duct and has entered the overheat protection state. Therefore, the drying fan stops working. At this time, the control board lowers the preset drying inlet air temperature to obtain a new preset drying inlet air temperature, and continues to execute the clothes drying control method based on the newly obtained preset drying inlet air temperature. The newly obtained preset drying inlet air temperature is lower than the initial preset drying inlet air temperature and can match the high-temperature protection temperature of the drying fan. Therefore, the drying fan will not reach its high-temperature protection temperature during operation. This can avoid frequent starting or stopping of the drying fan, thereby ensuring the normal execution of the drying method and improving the drying efficiency of the clothes processing device.

[0055] This method not only avoids frequent switching on and off of the heater, but also further protects the drying fan in normal working state, avoids frequent starting and stopping of the drying fan, extends the service life of the drying fan itself, and ensures the drying efficiency of clothes.

[0056] When executing this control method, the clothing processing device first identifies the current ambient temperature value A and simultaneously accesses a database to set an initial preset drying inlet air temperature T. The heater then begins heating at a heating temperature value n. The control board continuously monitors and determines whether the heater's temperature limiter is disconnected. If so, the control board memorizes the current inlet air temperature X degrees Celsius measured by the temperature sensor and subtracts 1 degree Celsius from X degrees Celsius as the maximum drying heating temperature for this period, i.e., the maximum drying heating temperature for this period is X-1 degrees Celsius. If the actual drying inlet air temperature L degrees Celsius is less than the maximum drying heating temperature X-1 degrees Celsius for this period, the control board controls the heater to restart and continue heating at an upper limit of X-1 degrees Celsius. If the temperature limiter is not disconnected, the control board determines whether the drying fan is in operation by evaluating its output power. If the drying fan returns a valid signal (i.e., an on signal) but has no output power, the drying fan is determined to be in an inoperative state due to high-temperature protection. The control board memorizes the current inlet air temperature measured by the temperature sensor (X1 degrees Celsius) and subtracts 1 degree Celsius from X1 degrees Celsius as the maximum temperature for this drying heating period. Therefore, the maximum temperature for this drying heating period is X1-1 degrees Celsius. If the actual inlet air temperature (L degrees Celsius) is less than the maximum temperature for this drying heating period (X1-1 degrees Celsius), the control board restarts the heater and continues heating with X1-1 degrees Celsius as the upper limit. If the drying fan returns a valid signal (i.e., an on signal) and has output power, the control board determines whether the heater needs to continue heating. If so, the control board starts the heater and heats it. If not, the control board continues executing the subsequent steps of the control method until it terminates.

[0057] Preferably, the timing of this control method can be optimized: the heater status detection cycle is set to 500 milliseconds, and the drying fan status detection cycle is set to 200 milliseconds, ensuring timely response to abnormal situations. When the heater is not operating, the control board completes the reduction of the preset drying inlet air temperature within 1 second and sends the reset preset drying inlet air temperature command to the heater; when the drying fan is not operating, the temperature adjustment delay is controlled to within 3 seconds to allow time for the drying fan to dissipate heat. This timing design not only ensures the response speed of the control board, but also avoids operational instability caused by frequent adjustments.

[0058] By executing the clothing drying control method to control the clothing processing equipment to dry the clothes, the risk of the heater and the drying fan frequently starting and stopping due to their own high temperature can be reduced at the same time, thereby ensuring the normal execution of the clothing drying control method and improving the clothing drying efficiency of the clothing processing equipment.

[0059] Optionally, in one implementation of this embodiment,

[0060] The lowering of the preset drying air inlet temperature includes: lowering the preset drying air inlet temperature X (m) to X (mt);

[0061] Among them, X(m)=B+j(m), X(mt)=B+j(mt);

[0062] B is the external ambient temperature value, m is the temperature threshold that triggers the temperature limiter of the heater to perform temperature limit protection on the heater, j(m) is a function of m, j(mt) is a function of mt, j(m)=i×m, j(mt)=i×(mt), i is the influence coefficient of the heater on the preset drying inlet air temperature under the current ambient temperature and load conditions of the clothing processing equipment, and t is a constant greater than zero.

[0063] In this embodiment, preferably, t=5, or 1≤t≤5, the original preset drying inlet air temperature is X(m), X(m)=B+j(m), X(m)=B+i×m, for example, X(m)=60°C, B=30°C, m=120°C, then the above formula can be calculated to obtain i=0.25;

[0064] Then when the preset drying inlet air temperature is lowered, the preset drying inlet air temperature X(m) is reduced to X(mt). When the ambient temperature does not change, at t=5, X(m-5)=B+i×(m-5)=30°C+0.25×115°C=58.75°C.

[0065] This method of lowering the preset drying inlet air temperature dynamically lowers the preset drying temperature by taking into account the change in ambient temperature and the influence of the heater on the preset drying inlet air temperature under the current ambient temperature and load of the clothes processing device. This method has the following advantages:

[0066] Adaptive cooling step to avoid over- or under-cooling

[0067] Dynamically adjust the cooling amount: The cooling amount is X(m)-X(mt)=i×mi×(mt)=i×t. Since i is the influence coefficient, i changes in real time with the ambient temperature and load (such as the amount of clothing, material). When the ambient temperature is high or the load is heavy, the heater is prone to overheating.

[0068] A larger i value, that is, a larger cooling step, can quickly suppress the risk of overheating.

[0069] Similarly, when the ambient temperature is low or the load is light, the i value is small, that is, the cooling step is small, to avoid a sudden drop in temperature that leads to a decrease in drying efficiency.

[0070] Compared with direct gradient cooling, the method of lowering the preset drying inlet air temperature in this embodiment has the following characteristics: the fixed step size may be "one size fits all", and under critical conditions (such as repeatedly approaching the temperature limit), it is easy to cause the protection action to be triggered cyclically (for example, overheating again soon after cooling down), which cannot effectively protect the drying air supply equipment and affects the continuity of the drying process.

[0071] Optionally, in one implementation of this embodiment,

[0072] The drying fan has a high temperature protection temperature threshold h;

[0073] If the drying fan does not work, lowering the preset drying air inlet temperature includes:

[0074] When the first temperature variable T1 of the drying fan reaches h, the preset drying air inlet temperature is lowered;

[0075] The first temperature variable T1 represents the temperature value obtained by real-time detection of the drying fan, h=A+y(n), A is the external environment temperature value, n represents the temperature value obtained by real-time detection of the heater, and y(n) is a function of n.

[0076] In this embodiment, the drying fan has a high-temperature protection threshold. When the drying fan reaches the high-temperature protection threshold due to heat exchange in the drying duct, that is, the drying fan's first temperature variable T1 reaches h, the drying fan temporarily stops operating to prevent damage to the drying fan. It will not restart until the temperature in the drying duct drops below the high-temperature protection threshold. T1 represents the temperature value detected in real time by the drying fan, i.e., T1 represents the real-time temperature value of the drying fan itself. The high-temperature protection threshold value of the drying fan is h, the ambient temperature is A, and the heater heating temperature is n. The high-temperature protection threshold value h, the ambient temperature A, and the heater heating temperature n are designed to satisfy the following relationship: h = A + y(n). That is, when the sum of the ambient temperature value and the heater temperature value n, according to the function y, equals the high-temperature protection threshold value h for the drying fan, the drying fan enters the high-temperature protection state and stops operating. n represents the real-time temperature value detected by the heater, i.e., n represents the real-time temperature value of the heater itself.

[0077] By designing the high-temperature protection temperature value h, the external ambient temperature value A and the heater heating temperature value n to satisfy the following relationship: h = A + y (n), the high-temperature protection temperature of the fan is a dynamic value adjusted according to the ambient temperature and the heater heating temperature, thereby reducing the probability that the temperature in the drying duct is higher than the high-temperature protection temperature value of the drying fan, reducing the risk of the drying fan frequently starting and stopping due to its own high temperature, and further ensuring the drying efficiency of the clothes processing equipment.

[0078] Furthermore, y(n)=k×n, where k is an adjustment coefficient and the value of k ranges from 0.2 to 0.5.

[0079] By designing y(n) = k·n, the dryer's high-temperature protection temperature h = A + k·n offers the following significant advantages. These advantages stem from h's dynamic adaptability, which allows it to adjust in real time based on the ambient temperature A and the heater's heating temperature n, improving the system's overall performance, safety, and efficiency.

[0080] First, h is no longer a fixed value; instead, it automatically adjusts based on the ambient temperature A and the heater temperature n. When the ambient temperature A is high (such as in summer) or the heater temperature n is high, h increases accordingly, preventing the system from falsely triggering protection mechanisms (such as shutdowns or alarms) during normal operating high temperatures. Conversely, when A or n is low, h decreases, providing more sensitive protection.

[0081] For example, if k = 0.2, ambient temperature A = 30°C, and n = 100°C, then h = 30 + 0.2 × 100 = 50°C. If the ambient temperature rises to A = 40°C, h = 40 + 20 = 60°C, allowing the dryer fan to operate at higher temperatures without false triggering. If n drops to 50°C, h = 30 + 10 = 40°C, providing stricter protection for the dryer fan.

[0082] As a result, the probability of the drying fan falsely triggering the protection mechanism is reduced, thereby improving the continuous operation time and reliability of the drying fan.

[0083] Second, the dynamic adjustment of h allows the dryer fan to operate at temperatures closer to its design limit. When the heater temperature n is higher, h increases, allowing the dryer fan to fully utilize the heater's high-temperature output, without being restricted by the fixed protection threshold, thereby improving drying efficiency and energy utilization.

[0084] For example, when drying high-humidity clothes, a higher heating temperature (n = 120°C) is required. If the dryer fan has a fixed protection threshold (for example, h = 40°C), the protection will be triggered prematurely, resulting in incomplete drying of the clothes. However, an adaptive setting of h = A + k·n (for example, when A = 25°C, h = 25 + 0.2 × 120 = 49°C, resulting in a higher actual protection threshold) allows the dryer fan to safely operate at a higher temperature, shortening the drying cycle.

[0085] Third, h = A + k·n ensures that the dryer's protection threshold is positively correlated with the heater's risk. The higher the heater's heating temperature, n, the greater the potential overheating risk, and h should be designed to be larger to provide ample safety margin. Furthermore, when n is lower, h is closer to the ambient temperature, A, ensuring rapid protection in low-load conditions or faults (such as heater anomalies).

[0086] Example: If a heater failure causes n to drop abnormally (e.g., n=50°C), h=A+k×n (e.g., when A=30°C, h=30+10=40°C), and if h=50°C is fixed, the drying fan may not respond in time.

[0087] As a result, the dryer fan is safer and is particularly suitable for changing environments (such as large temperature differences between day and night or seasonal climates).

[0088] Optionally, in one implementation of this embodiment,

[0089] The determining whether to lower the preset drying air inlet temperature according to whether the heater enters the high temperature protection state, and lowering the preset drying air inlet temperature if the heater enters the high temperature protection state, includes:

[0090] Whether the heater enters a high-temperature protection state is determined based on whether the temperature limiter of the heater is disconnected. If the temperature limiter is disconnected, it is determined that the heater enters a high-temperature protection state, and the preset drying air inlet temperature is lowered. The clothing drying control method is executed based on the lowered preset drying air inlet temperature.

[0091] In this embodiment, when executing the step of determining whether to lower the preset drying inlet air temperature based on whether the heater is working, and lowering the preset drying inlet air temperature if the heater is not working, the control main board first determines whether the heater is in a working state based on whether the temperature limiter of the heater is disconnected.

[0092] Specifically, if the control board detects that the temperature limiter of the heater has not been disconnected, it means that the heater is in a normal operating state at this time, and the control board can continue to execute the subsequent steps of the control method. If the control board detects that the temperature limiter of the heater has been disconnected, it means that the heater is in a power-off protection state due to its own temperature increase. The control board thus determines that the heater is not in an operating state, but the drying process of the clothes has not been completed at this time, and the drying air duct should be continuously heated. Therefore, the control board adjusts the preset drying inlet air temperature to re-derive the preset drying inlet air temperature, and continues to execute the clothes drying control method based on the re-derived preset drying inlet air temperature. The re-derived preset drying inlet air temperature is lower than the initial preset drying inlet air temperature, and the re-derived preset drying inlet air temperature can match the disconnection temperature of the temperature limiter. Therefore, the target heating temperature of the heater is also reduced accordingly, which can prevent the heater from frequently entering the power-off protection state, thereby ensuring the normal execution of the drying method and improving the drying efficiency of the clothes processing device.

[0093] By detecting whether the temperature limiter of the heater is disconnected, it is determined whether the heater is in working condition, so that the control main board can quickly and accurately obtain the judgment result, thereby shortening the time for adjusting the preset drying inlet air temperature and further improving the drying efficiency of the clothing processing equipment.

[0094] Optionally, in one implementation of this embodiment,

[0095] If the heater is operating but does not enter the high temperature protection state, determining whether to lower the preset drying air inlet temperature according to whether the drying fan is operating includes:

[0096] Determine whether the heater is working based on whether the temperature limiter of the heater is disconnected. If the limiter is not disconnected, it is determined that the heater is working, and then maintain the preset drying inlet air temperature. Determine again whether to lower the preset drying inlet air temperature based on whether the drying fan is working.

[0097] In this embodiment, if the heater is working, when determining whether to lower the preset drying air inlet temperature based on whether the drying fan is working, the control main board first detects whether the temperature limiter of the heater is disconnected, and determines whether the heater is working based on the detection result.

[0098] Specifically, if the control board detects that the heater limiter is not disconnected, it determines that the heater is in operation, that is, the heater has not entered the power-off protection state, and at this time the temperature in the drying duct has not yet reached the preset drying inlet temperature. The heater needs to continue heating the drying duct. Therefore, the control board first maintains the initial preset drying inlet temperature. The control board then detects whether the drying fan is working and, based on the detection result, determines whether to lower the preset drying inlet temperature. Under the premise that the heater is in operation, if the control board detects that the drying fan is in operation, it means that the drying fan is operating normally and the drying duct needs to continue heating. The control board then continues to execute the subsequent steps of the control method. If the control main board detects that the drying fan is not in the working state, it means that the drying fan has caused its own temperature to be too high due to the heat exchange in the drying air duct and has entered the overheating protection state. Therefore, the drying fan stops working. At this time, the control main board lowers the preset drying inlet air temperature, thereby re-obtaining the preset drying inlet air temperature, and continues to execute the clothes drying control method based on the re-obtained preset drying inlet air temperature. The re-obtained preset drying inlet air temperature is lower than the initial preset drying inlet air temperature, and the re-obtained preset drying inlet air temperature can match the high temperature protection temperature of the drying fan. Therefore, the drying fan will not reach its high temperature protection temperature when working, which can avoid the drying fan from frequently starting or stopping, thereby ensuring the normal execution of the drying method and improving the drying efficiency of the clothes processing equipment.

[0099] By detecting whether the drying fan is working under the premise that the heater is in working condition, and determining again whether to lower the preset drying inlet air temperature based on the detection results, the control main board can adjust the preset drying inlet air temperature according to the working status of the heater and the drying fan at the same time, reducing the risk that the preset drying inlet air temperature obtained based on the working status of a single component will not match other key components, thereby causing other key components to malfunction.

[0100] Optionally, in an implementation of this embodiment, as Figure 3 As shown,

[0101] If the drying fan does not work, lowering the preset drying air inlet temperature includes:

[0102] determining whether the drying fan is working according to whether the control signal of the drying fan is a valid signal and whether the drying fan outputs power;

[0103] If the control signal of the drying fan is a valid signal and the drying fan has no output power, it is determined that the drying fan is not working, and the preset drying air inlet temperature is lowered.

[0104] In this embodiment, when executing the step of lowering the preset drying air inlet temperature if the drying fan is not working, the control mainboard determines whether the drying fan is working according to whether the drying fan outputs power.

[0105] Specifically, if the control board detects that the drying fan has output power or its output power is greater than 0, it means that the drying fan is in normal operation at this time, and the control board can continue to execute the subsequent steps of the control method. If the control board detects that the control signal of the drying fan is a valid signal, and there is no output power or its output power is 0, it means that the drying fan has entered the overheat protection state due to its own high temperature under the heat exchange of the drying air duct, so the drying fan has stopped working. At this time, the control board adjusts the preset drying inlet air temperature to reduce the preset drying inlet air temperature, and continues to execute the clothes drying control method based on the newly obtained preset drying inlet air temperature. The newly obtained preset drying inlet air temperature is lower than the initial preset drying inlet air temperature, and the newly obtained preset drying inlet air temperature can match the high temperature protection temperature of the drying fan, so that the drying fan will not reach its high temperature protection temperature during subsequent operation. This can avoid the drying fan from frequently starting or stopping, thereby ensuring the normal execution of the drying method and improving the drying efficiency of the clothes processing device.

[0106] Preferably, a dual method of power threshold and speed detection can be used to determine whether the drying fan is working. When the drying fan's output power is less than 5% of its rated power and the drying fan's speed is less than 500 revolutions per minute, the control board will determine that the drying fan is not working. A high-precision current transformer is used for power detection with a sampling frequency of 1kHz to capture instantaneous power fluctuations; speed detection is achieved through a Hall effect sensor with a resolution of up to 1 revolution. This dual detection can avoid misjudgment by the control board due to fluctuations in the drying fan's output power at the moment of startup.

[0107] By judging whether the drying fan is working based on whether the control signal of the drying fan is a valid signal and whether the drying fan outputs power, and determining whether to lower the preset drying air inlet temperature based on the judgment result, the control main board can quickly and accurately obtain the judgment result, thereby shortening the time for adjusting the preset drying air inlet temperature and further improving the drying efficiency of the clothing processing equipment for clothes.

[0108] Optionally, in an implementation of this embodiment, as Figure 3 As shown,

[0109] The clothes drying control method further includes:

[0110] If the drying fan is working, the preset drying air inlet temperature is maintained;

[0111] If the drying fan is working, maintaining the preset drying air inlet temperature includes:

[0112] determining whether the drying fan is working according to whether the control signal of the drying fan is a valid signal and whether the drying fan outputs power;

[0113] If the control signal of the drying fan is a valid signal and the drying fan has output power, it is determined that the drying fan is working, and the preset drying air inlet temperature is maintained.

[0114] In this embodiment, when executing the steps of the clothes drying control method, if the control main board detects that the drying fan is in working state, it means that the temperature in the drying air duct has not yet reached the preset drying inlet air temperature, and the drying fan needs to continue to run. Therefore, the control main board maintains the initial preset drying inlet air temperature unchanged and continues to execute the subsequent steps of the control method.

[0115] Specifically, when the heater and the drying fan are set in the clothing processing equipment at the same time, since the heater is mainly used to heat the drying duct and the drying fan is mainly used to realize the air circulation in the drying duct, the disconnection temperature of the temperature limiter on the heater must be higher than the high temperature protection temperature of the drying fan. Therefore, when the temperature in the drying duct is too high, the drying fan often stops working first. In other words, as long as the drying fan is operating normally in the drying duct, it means that the heater is also operating normally. Therefore, there is no need to lower the initial preset drying inlet air temperature, and it is only necessary to maintain the initial preset drying inlet air temperature unchanged.

[0116] By controlling the main board to detect that the drying fan is in working state, the initial preset drying inlet air temperature is maintained unchanged, and the relatively low high temperature protection temperature of the drying fan is used as the adjustment standard for the preset drying inlet air temperature, so that the clothing processing equipment can maintain efficient drying of clothes.

[0117] If the control board detects that the drying fan has output power or its output power is greater than 0, it means that the drying fan is in normal operation at this time, and the control board can continue to execute the subsequent steps of the control method. If the control board detects that the control signal of the drying fan is valid, and there is no output power or its output power is 0, it means that the drying fan has entered the overheat protection state due to its own high temperature under the heat exchange of the drying air duct, so the drying fan has stopped working. At this time, the control board adjusts the preset drying inlet air temperature to reduce the preset drying inlet air temperature, and continues to execute the clothes drying control method based on the newly obtained preset drying inlet air temperature. The newly obtained preset drying inlet air temperature is lower than the initial preset drying inlet air temperature, and the newly obtained preset drying inlet air temperature can match the high temperature protection temperature of the drying fan, so that the drying fan will not reach its high temperature protection temperature during subsequent operation. This can avoid the frequent starting or stopping of the drying fan, thereby ensuring the normal execution of the drying method.

[0118] Whether the drying fan is working is determined by whether the control signal of the drying fan is a valid signal and whether power is output, and whether the preset drying inlet air temperature is lowered is determined based on the judgment result. When the control main board determines that the drying fan is in working state, the initial preset drying inlet air temperature will not be lowered, thereby maintaining the efficient drying of clothes by the clothing processing equipment.

[0119] Optionally, in one implementation of this embodiment,

[0120] The clothes drying control method is executed by maintaining a preset drying air inlet temperature, including:

[0121] determining whether to execute the clothes drying control method according to whether the heater needs to continue to work;

[0122] If the heater needs to continue working, the clothes drying control method is executed again.

[0123] In this embodiment, when executing the step of maintaining the preset drying inlet air temperature to execute the clothes drying control method, the control main board first determines whether the heater needs to continue working, and determines whether to execute the clothes drying control method based on the judgment result.

[0124] Specifically, when the drying fan is in operation, the temperature in the drying duct may be in one of two situations: first, when the temperature in the drying duct has reached the preset drying inlet temperature, the heater stops operating, while the drying fan continues to operate to circulate the hot air in the drying duct; second, when the temperature in the drying duct has not yet reached the preset drying inlet temperature, the heater needs to continue operating to further increase the temperature in the drying duct. Therefore, the control board uses feedback signals from other components in the clothing processing device, such as the temperature sensor, to determine whether the heater needs to continue operating. If the control board detects that the temperature in the drying duct has reached the preset drying inlet temperature, it determines that the heater does not need to continue operating. In this case, the control board controls the heater to stop operating and continues to execute the subsequent steps of the control method. If the control board detects that the temperature in the drying duct has not yet reached the preset drying inlet temperature, it determines that the heater needs to continue operating. In this case, the control board restarts the clothing drying control method from the first step of heating the drying duct.

[0125] By judging whether the heater needs to continue working, it is determined whether to execute the clothing drying control method, so that the control main board can maintain the normal operation of the heater when the drying duct needs to be heated, so that the temperature in the drying duct continues to rise, and the clothes are kept in a state of efficient drying; when the drying duct does not need to continue heating, the heater is controlled to stop working, which not only avoids the heater from being repeatedly turned on and off due to overheating, but also reduces the energy consumption of the clothing processing equipment.

[0126] Example 2

[0127] This embodiment provides an electronic device, the electronic device including:

[0128] Memory, which stores computer instructions;

[0129] The processor is used to call and execute computer instructions to implement the clothes drying control method in embodiment 1.

[0130] 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 clothes drying control method of Example 1. Because the electronic device can execute the clothes drying control method of Example 1, it has all the benefits of the clothes drying control method of Example 1 and is not further described here.

[0131] Example 3

[0132] This embodiment provides a clothes processing device, which uses the clothes drying control method in the first embodiment, or includes the electronic device in the second embodiment.

[0133] In this embodiment, the clothing processing device may be a drum washing machine or other device capable of drying clothing. The clothing processing device can directly execute the clothing drying control method of the first embodiment to dry the clothing. Alternatively, the clothing processing device may be provided with the electronic device of the second embodiment, and the electronic device of the second embodiment may be used to execute the clothing drying control method of the first embodiment to dry the clothing. Since the clothing processing device can directly execute the clothing drying control method of the first embodiment or is provided with the electronic device of the second embodiment, the clothing processing device has all the beneficial effects of the clothing drying control method of the first embodiment or the electronic device of the second embodiment, and no further details are given here.

[0134] In summary, the ingenious idea of ​​the clothes drying control method lies in:

[0135] First, by executing the clothes drying control method to control the clothes processing device to dry the clothes, the risk of the heater and the drying fan frequently starting and stopping due to their own high temperatures can be reduced, thereby ensuring the normal execution of the clothes drying control method and improving the clothes drying efficiency of the clothes processing device.

[0136] Second, this method of lowering the preset drying inlet air temperature takes into account the impact of the heater on the preset drying inlet air temperature under changes in ambient temperature and the current ambient temperature and load of the clothes processing equipment, and lowers the preset drying temperature in a dynamic manner. Compared with direct gradient cooling: a fixed step size may be "one size fits all", and under critical conditions (such as repeatedly approaching the temperature limit), it is easy to cause the protection action to be triggered cyclically (for example, overheating soon after cooling down), which cannot effectively protect the drying air supply equipment and affects the continuity of the drying process.

[0137] Third, by designing the high-temperature protection temperature value h, the external ambient temperature value A and the heater heating temperature value n to satisfy the following relationship: h = A + y (n), the high-temperature protection temperature of the fan is a dynamic value adjusted according to the ambient temperature and the heater heating temperature, thereby reducing the probability that the temperature in the drying duct is higher than the high-temperature protection temperature value of the drying fan, reducing the risk of the drying fan frequently starting and stopping due to its own high temperature, and further ensuring the drying efficiency of the clothing processing equipment for clothes.

[0138] Fourth, by detecting whether the heater's temperature limiter is disconnected, it is determined whether the heater is in working condition, so that the control mainboard can quickly and accurately obtain the judgment result, thereby shortening the time for adjusting the preset drying air inlet temperature and further improving the drying efficiency of the clothing processing equipment.

[0139] Fifth, by detecting whether the drying fan is working under the premise that the heater is in working condition, and determining again whether to lower the preset drying inlet air temperature based on the detection result, the control main board can adjust the preset drying inlet air temperature according to the working status of the heater and the drying fan at the same time, reducing the risk that the preset drying inlet air temperature obtained based on the working status of a single component will not match other key components, thereby causing other key components to malfunction.

[0140] Sixth, by judging whether the drying fan is working according to whether the control signal of the drying fan is valid and whether the power is output, and determining whether to lower the preset drying air inlet temperature according to the judgment result, when the control main board judges that the drying fan is in working state, it will not lower the initial preset drying air inlet temperature, thereby maintaining the efficient drying of clothes by the clothing processing equipment.

[0141] Seventh, by judging whether the heater needs to continue working, it is determined whether to execute the clothing drying control method, so that the control main board can maintain the normal operation of the heater when the drying duct needs to be heated, so that the temperature in the drying duct continues to rise, and the clothes are kept in a state of efficient drying; when the drying duct does not need to continue heating, the heater is controlled to stop working, which not only avoids the heater from being repeatedly turned on and off due to overheating, but also reduces the energy consumption of the clothing processing equipment.

[0142] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0143] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not indicate a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of this disclosure.

[0144] It is further understood that although operations are described in a particular order in the accompanying 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.

[0145] Those skilled in the art will readily appreciate other embodiments of the present disclosure 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 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, and the true scope and spirit of the present disclosure are indicated by the claims of this application.

[0146] It should be understood that the present disclosure is not limited to the precise 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 clothes drying control method, characterized in that: include: During the drying process, obtain the working status of the drying air supply equipment; determining whether to adjust the preset drying air inlet temperature according to the working status of the drying air supply device; When it is determined that the preset drying air inlet temperature needs to be adjusted, adjusting the preset drying air inlet temperature according to the air inlet temperature adjustment strategy; The drying air supply device includes a heater; determining whether to adjust the preset drying air inlet temperature according to the working state of the drying air supply device, and adjusting the preset drying air inlet temperature according to the air inlet temperature adjustment strategy when it is determined that the preset drying air inlet temperature needs to be adjusted, including: determining whether to lower the preset drying air inlet temperature according to whether the heater enters a high-temperature protection state, and lowering the preset drying air inlet temperature if the heater enters the high-temperature protection state; Alternatively, the drying air supply device includes a heater and a drying air fan; the determining whether to adjust the preset drying air inlet temperature according to the working state of the drying air supply device, and if it is determined that the preset drying air inlet temperature needs to be adjusted, adjusting the preset drying air inlet temperature according to the air inlet temperature adjustment strategy, including: judging whether the heater enters a high-temperature protection state; if the heater is working but does not enter the high-temperature protection state, determining whether to lower the preset drying air inlet temperature according to whether the drying air fan is working, and if the drying air fan is not working, lowering the preset drying air inlet temperature; The lowering of the preset drying air inlet temperature includes: lowering the preset drying air inlet temperature X (m) to X (mt); Among them, X(m)=B+j(m), X(mt)=B+j(mt); B is the external ambient temperature value, m is the temperature threshold that triggers the temperature limiter of the heater to perform temperature limit protection on the heater, j(m) is a function of m, j(mt) is a function of mt, j(m)=i×m, j(mt)=i×(mt), i is the influence coefficient of the heater on the preset drying inlet air temperature under the current ambient temperature and load conditions of the clothing processing equipment, and t is a constant greater than zero.

2. The clothes drying control method according to claim 1, characterized in that: The drying fan has a high temperature protection temperature threshold h; If the drying fan does not work, lowering the preset drying air inlet temperature includes: When the first temperature variable T1 of the drying fan reaches h, the preset drying air inlet temperature is lowered; The first temperature variable T1 represents the temperature value obtained by real-time detection of the drying fan, h=A+y(n), A is the external environment temperature value, n represents the temperature value obtained by real-time detection of the heater, and y(n) is a function of n.

3. The clothes drying control method according to claim 2, characterized in that: y(n)=k×n, where k is the adjustment coefficient, and the value of k ranges from 0.2 to 0.

5.

4. The clothes drying control method according to claim 1, characterized in that: If the drying fan does not work, lowering the preset drying air inlet temperature includes: determining whether the drying fan is working according to whether the control signal of the drying fan is a valid signal and whether the drying fan outputs power; If the control signal of the drying fan is a valid signal and the drying fan has no output power, it is determined that the drying fan is not working, and the preset drying air inlet temperature is lowered.

5. The clothes drying control method according to claim 1, characterized in that: The clothes drying control method further includes: If the drying fan is working, the preset drying air inlet temperature is maintained; If the drying fan is working, maintaining the preset drying air inlet temperature includes: determining whether the drying fan is working according to whether the control signal of the drying fan is a valid signal and whether the drying fan outputs power; If the control signal of the drying fan is a valid signal and the drying fan has output power, it is determined that the drying fan is working, and the preset drying air inlet temperature is maintained.

6. 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 clothes drying control method according to any one of claims 1 to 5.

7. A clothes processing device, characterized in that: The clothes processing device uses the clothes drying control method according to any one of claims 1 to 5, or includes the electronic device according to claim 6.

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