Dry burning prevention control system and method for clothes airing machine, electronic equipment and clothes airing machine

Abstract

The invention relates to a dry burning prevention control system and method for a clothes airing machine, electronic equipment and the clothes airing machine, according to the dry burning prevention control system for the clothes airing machine, a zero-crossing detection module detects a zero-crossing level signal corresponding to a heating device, so that a main control module receives the zero-crossing level signal, and according to the zero-crossing level signal and the drying function state of the clothes airing machine, the drying function state of the clothes airing machine is controlled; determining an operation type corresponding to the clothes airing machine; target operation corresponding to the operation type is executed for the fan, and an operation execution result is obtained; therefore, the corresponding target operation can be executed on the fan in combination with the zero-crossing level signal corresponding to the heating device and the drying function state of the clothes airing machine, the fan control accuracy is improved, the situation that the fan and the heating device cannot be normally matched, and consequently the heating device continuously burns in a dry mode is avoided, and the user experience is improved. The problem of dry burning risk existing in the PTC control mode of the clothes airing machine in the prior art is solved, and the dry burning risk of the clothes airing machine can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of clothes drying machines, and in particular to a clothes drying machine anti-dry burning control system, method, electronic equipment and clothes drying machine. Background Art

[0002] With the development of society, people's material consumption level has increased. Many people use smart electric clothes drying machines to dry clothes at home. Common clothes drying machines on the market are usually equipped with a drying function, which can not only make clothes dry faster, but also make clothes softer and more comfortable.

[0003] In traditional technology, the drying function of the clothes drying machine usually uses a positive temperature coefficient (PTC) heating wire to generate heat, and blows out the hot air through a fan to achieve the function of drying clothes. Specifically, the traditional PTC driving method mainly controls the on and off of the 220V mains power of the PTC through the relay of the main control board, thereby controlling whether the PTC works; the traditional blowing method generally uses a 220V cross-flow fan or an axial flow fan, and controls the on and off of the 220V mains power of the fan through the relay of the main control board, thereby controlling whether the fan works. Although the existing related technology can achieve the drying effect through the cooperation of PTC and fan, the PCT in the circuit has the risk of spontaneous combustion. For example, the PTC starts abnormally when not in working state. At this time, the fan is not started, and the heat generated by the operation of the PTC will continue to increase, causing the inside of the machine to continue to dry burn and heat up, making the temperature of the clothes dryer higher than the ignition point of the machine's outer shell material, causing the machine to catch fire. In addition, when the PTC starts normally in the working state, if the fan operates abnormally, it will also cause the inside of the machine to continue to dry burn and heat up. That is, the PTC control method of the clothes dryer in the existing related technology has the problem of dry burning risk. Summary of the invention

[0004] In order to solve the problem of dry burning risk in the PTC control method of the clothes drying machine in the existing related technology, the present application provides a clothes drying machine anti-dry burning control system, method, electronic equipment and clothes drying machine.

[0005] In a first aspect, the present application provides a clothes drying machine anti-dry burning control system, comprising a zero-crossing detection module and a main control module; the clothes drying machine is equipped with a fan and a heating device;

[0006] The zero-crossing detection module is connected to the heating device and is used to detect the zero-crossing level signal corresponding to the heating device;

[0007] The main control module is connected to the zero-crossing detection module, and is used to receive a zero-crossing level signal, and determine the operation type corresponding to the clothes drying machine according to the zero-crossing level signal and the drying function status of the clothes drying machine; and execute the target operation corresponding to the operation type for the fan to obtain the operation execution result.

[0008] Optionally, the main control module is used to determine the heating self-start type as the operation type based on the zero-crossing level signal when the drying function state is the drying off state, and determine the fan start operation corresponding to the heating self-start type as the target operation; and execute the fan start operation on the fan to obtain the operation execution result.

[0009] Optionally, it further comprises a fan detection module, wherein the output end of the fan detection module is electrically connected to the second input end of the main control module, and the input end of the fan detection module is electrically connected to the first output end of the main control module;

[0010] The fan detection module is used to detect a fan detection signal corresponding to the fan, and output the fan detection signal to the second input terminal of the main control module;

[0011] The main control module is also used to, when the drying function state is the drying on state, determine the operation type according to the heating start type based on the zero-crossing level signal and the fan detection signal, and determine the fan detection operation corresponding to the heating start type as the target operation; and execute the fan detection operation on the fan to obtain the operation execution result.

[0012] Optionally, the clothes drying machine anti-dry burning control system also includes:

[0013] The fan detection module is further used to detect a fan status detection signal and a fan current detection signal corresponding to the fan;

[0014] The main control module is also used to determine whether the fan current detection signal belongs to a preset current range when the fan status detection signal is a normal fan status signal; and generate the operation execution result when the fan current detection signal does not belong to the preset current range.

[0015] Optionally, it further comprises an alarm module, wherein the input end of the alarm module is electrically connected to the second output end of the main control module;

[0016] The main control module is further configured to output an alarm signal to an input terminal of the alarm module when the operation execution result is an alarm result;

[0017] The alarm module is used to perform an alarm operation according to the alarm signal.

[0018] Optionally, the alarm module includes a network communication unit and / or a prompt unit;

[0019] The network communication unit is electrically connected to the main control module, and is used to output application alarm information to a preset client according to the alarm signal;

[0020] The input end of the prompt unit is electrically connected to the main control module and is used to output a prompt signal according to the alarm signal.

[0021] Optionally, the zero-crossing detection module includes a relay and a photoelectric coupler;

[0022] The power supply end of the heating device and the first end of the photoelectric coupler are electrically connected to the mains live wire, and the mains live wire is electrically connected to the relay, and the fourth end of the relay and the photoelectric coupler is also electrically connected to the main control module;

[0023] The relay is used to connect or disconnect the mains live wire under the control of the main control module, so that the heating device and the photoelectric coupler are connected to or disconnected from the mains.

[0024] Optionally, the zero-crossing detection module further includes a first diode;

[0025] The first end of the relay, the second end of the relay, the first end of the first diode, and the first end of the photoelectric coupler are electrically connected to the mains live wire, the second end of the first diode and the second end of the photoelectric coupler are electrically connected to the mains neutral wire, the third end of the photoelectric coupler is electrically connected to the reference ground, the fourth end of the photoelectric coupler is electrically connected to the first input end of the main control module, the first end of the relay is also electrically connected to the heating device, and the control end of the relay is electrically connected to the main control module.

[0026] Optionally, the fan detection module includes a wiring terminal unit and a sampling unit;

[0027] The first end of the wiring terminal unit is electrically connected to the power input end, the second end of the wiring terminal unit is electrically connected to the first output end of the main control module, the third end of the wiring terminal unit is electrically connected to the fan status end of the main control module, the fourth end of the wiring terminal unit is electrically connected to the first end of the sampling unit, and the second end of the sampling unit is electrically connected to the voltage collection end of the main control module; the first end of the wiring terminal unit, the second end of the wiring terminal unit, the third end of the wiring terminal unit and the fourth end of the wiring terminal unit are also electrically connected to the fan.

[0028] Optionally, the sampling unit includes: a sampling resistor, a first resistor, a first inductor, a first capacitor, a second capacitor, a second diode and a third diode;

[0029] The first end of the sampling resistor, the first end of the first inductor, and the fourth end of the wiring terminal unit are electrically connected, the second end of the first inductor, the first end of the first capacitor, the first end of the second capacitor, and the first end of the first resistor are electrically connected, the second end of the sampling resistor, the second end of the first capacitor, the second end of the second capacitor, and the reference ground are electrically connected, the second end of the first resistor, the first end of the second diode, the second end of the third diode, and the voltage collection end of the main control module are electrically connected, the first end of the third diode is electrically connected to the reference ground, and the second end of the second diode is electrically connected to the power input end.

[0030] In a second aspect, the present application provides a method for controlling a clothes drying machine to prevent dry burning, wherein the clothes drying machine is equipped with a fan and a heating device, and the method comprises:

[0031] Acquire a zero-crossing level signal corresponding to the heating device and a drying function status of the clothes drying machine;

[0032] Determining the operation type corresponding to the clothes drying machine based on the zero-crossing level signal and the drying function state;

[0033] Execute a target operation corresponding to the operation type for the wind turbine to obtain an operation execution result.

[0034] Optionally, determining the operation type corresponding to the clothes drying machine based on the zero-crossing level signal and the drying function state includes:

[0035] When the drying function state is the drying off state, the heating self-start type is determined as the operation type according to the zero-crossing level signal, and the fan start operation corresponding to the heating self-start type is determined as the target operation;

[0036] When the drying function state is the drying on state, determining whether the zero-crossing level signal belongs to a preset first zero-crossing level signal;

[0037] When the zero-crossing level signal belongs to the first zero-crossing level signal, obtaining a fan detection signal corresponding to the fan;

[0038] According to the zero-crossing level signal and the fan detection signal, the operation type is determined by the heating startup type, and the fan detection operation corresponding to the heating startup type is determined as the target operation.

[0039] Optionally, executing the target operation corresponding to the operation type for the wind turbine to obtain the operation execution result includes:

[0040] In a case where the target operation is the fan detection operation, extracting a fan state detection signal and a fan current detection signal from the fan detection signal;

[0041] When the fan state detection signal is a fan state normal signal, determining whether the current value of the fan current detection signal is within a preset current range;

[0042] When the current value of the fan current detection signal is not within the preset current range, an alarm signal is generated;

[0043] The operation execution result is generated according to the alarm signal.

[0044] In a third aspect, the present application provides a clothes drying machine, comprising the clothes drying machine anti-dry burning control system described in the first aspect.

[0045] In a fourth aspect, the present application provides an electronic device, characterized in that it includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus;

[0046] Memory, used to store computer programs;

[0047] The processor is used to implement the clothes drying machine anti-dry burning control method described in any one of the second aspects when executing the program stored in the memory.

[0048] In a fifth aspect, the present application provides a clothes drying machine, comprising the clothes drying machine anti-dry burning control system as described in any one of the first aspects of the claims.

[0049] The clothes drying machine anti-dry burning control system provided in the embodiment of the present application detects the zero-crossing level signal corresponding to the heating device through the zero-crossing detection module, so that the main control module receives the zero-crossing level signal, and determines the corresponding operation type of the clothes drying machine according to the zero-crossing level signal and the drying function status of the clothes drying machine; and executes the target operation corresponding to the operation type for the fan to obtain the operation execution result; thereby, the corresponding target operation can be executed on the fan in combination with the zero-crossing level signal corresponding to the heating device and the drying function status of the clothes drying machine, thereby improving the accuracy of the fan control, avoiding the situation where the fan and the heating device cannot cooperate normally and the heating device continues to dry burn, that is, solving the problem of dry burning risk in the PTC control method of the clothes drying machine in the existing related technology, and can effectively reduce the dry burning risk of the clothes drying machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0052] Figure 1 A detection schematic diagram of a clothes drying machine anti-dry burning control system provided in an embodiment of the present application;

[0053] Figure 2 Another detection schematic diagram of a clothes drying machine anti-dry burning control system provided in an embodiment of the present application;

[0054] Figure 3 Another detection schematic diagram of a clothes drying machine anti-dry burning control system provided in an embodiment of the present application;

[0055] Figure 4 Another detection schematic diagram of a clothes drying machine anti-dry burning control system provided in an embodiment of the present application;

[0056] Figure 5 A schematic diagram of the circuit principle of a zero-crossing detection module of a clothes drying machine anti-dry burning control system provided in an embodiment of the present application;

[0057] Figure 6 A schematic diagram of the circuit principle of a fan detection module of a clothes drying machine anti-dry burning control system provided in an embodiment of the present application;

[0058] Figure 7 A schematic flow chart of a method for controlling a clothes drying machine to prevent dry burning provided by an embodiment of the present application;

[0059] Figure 8 Another schematic diagram of a flow chart of a clothes drying machine anti-dry burning control system provided in an embodiment of the present application;

[0060] Fig. 9 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0061] Figure ID:

[0062] 11. Main control module; 12. Zero-crossing detection module; 13. Fan detection module; 131. Wiring terminal unit; 132. Sampling unit; 14. Alarm module; 141. Prompt unit; 142. Network communication unit; 21. Heating device; 31. Fan; J3. Relay; ZD4. First diode; U6. Photocoupler; R39. Sampling resistor; L5. First inductor; R40. First resistor; EC8. First capacitor; C33. Second capacitor; D7. Second diode; D8. Third diode; R78. Second resistor; R79. Third resistor; R77. Fourth resistor; R80. Fifth resistor; C55. Third capacitor. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0064] Since the existing PTC driving method is to control the on and off of the 220V mains power of the PTC through the relay of the main control board to control whether the PTC starts working; and the driving method of the blower is to use a 220V cross-flow fan or an axial flow fan, and control the on and off of the 220V mains power of the fan through the relay of the main control board, so as to control whether the fan works; that is, the existing PTC and the fan are both controlled by the control relay. There are at least two risks in this process. One aspect is that the relay controlling the fan and the PTC has a certain component defect rate. When the relay is damaged, The internal magnet is continuously attracted, which will cause the fan or PTC to be in a working state of being always on or always off. At this time, if the clothes dryer is in standby mode and the PTC is always on, the PTC will dry burn. When the machine is in a drying state, if the fan is always off, the heat generated by the PTC cannot be blown out by the fan, and the PTC inside the clothes dryer will continue to dry burn and heat up. On the other hand, there is a certain probability that the fan will be damaged. For example, if it does not work when the power supply voltage is applied, and when the machine is in a drying state, if the fan is damaged and does not rotate, the PTC will continue to dry burn. The above-mentioned risk of PTC dry burning of the clothes dryer will cause the inside of the clothes dryer to continue to dry burn, resulting in an increase in temperature, which may eventually lead to more serious accidents, such as damage to the clothes dryer, fire, etc. That is, the PTC control method of the clothes dryer in the existing related technology has the problem of dry burning risk.

[0065] In order to solve the problem of dry-burning risk in the PTC control method of the clothes dryer in the existing related technology, the clothes dryer anti-dry-burning control system, method, electronic device and clothes dryer provided in the embodiments of the present application can detect the zero-crossing level signal corresponding to the heating device through the zero-crossing detection module, so that the main control module receives the zero-crossing level signal, and determines the corresponding operation type of the clothes dryer according to the zero-crossing level signal and the drying function status of the clothes dryer; and executes the target operation corresponding to the operation type for the fan to obtain the operation execution result; thereby, the corresponding target operation can be performed on the fan in combination with the zero-crossing level signal corresponding to the heating device and the drying function status of the clothes dryer, thereby improving the accuracy of the fan control, avoiding the situation where the fan and the heating device cannot cooperate normally and the heating device continues to dry-burn, that is, solving the problem of dry-burning risk in the PTC control method of the clothes dryer in the existing related technology, and can effectively reduce the dry-burning risk of the clothes dryer.

[0066] Figure 1 A schematic flow chart of a clothes drying machine anti-dry burning control system provided in an embodiment of the present application.

[0067] like Figure 1 As shown, the present application discloses an embodiment, providing a clothes drying machine anti-dry burning control system, including a zero-crossing detection module 12 and a main control module 11; the output end of the zero-crossing detection module 12 is electrically connected to the first input end of the main control module 11, and the clothes drying machine is equipped with a fan 31 and a heating device 21;

[0068] A zero-crossing detection module 12, used to detect a zero-crossing level signal corresponding to the heating device 21;

[0069] The main control module 11 is used to receive the zero-crossing level signal, determine the corresponding operation type of the clothes dryer according to the zero-crossing level signal and the drying function state of the clothes dryer, and execute the target operation corresponding to the operation type for the fan 31 to obtain the operation execution result.

[0070] In this embodiment, the zero-crossing detection module 12 can be used to detect whether the heating device 21 is started, wherein the heating device 21 can be a device with a heating function, such as a PTC heating wire, a heating tube, a resistance wire, etc.; the zero-crossing detection module 12 in this embodiment can specifically be a zero-crossing level signal corresponding to the detection of the heating device 21, wherein the zero-crossing level signal can represent a signal detecting the zero point position in the AC waveform corresponding to the heating device 21. Since the heating device 21 is driven by AC, the zero-crossing level signal can be used to directly determine whether the heating device 21 is turned on.

[0071] The main control module 11 can receive a zero-crossing level signal, and determine the corresponding operation type of the clothes dryer according to the zero-crossing level signal and the drying function state of the clothes dryer; and execute the target operation corresponding to the operation type for the fan 31 to obtain the operation execution result; wherein the drying function state can indicate whether the drying function of the clothes dryer is turned on, for example, the drying function state can be a drying off state or a drying on state, the drying off state indicates that the drying function of the clothes dryer is in a turned off state, and the drying on state indicates that the drying function of the clothes dryer is in an turned on state; the operation type can indicate the specific type of the current operation of the clothes dryer, for example, the operation type can be a heating self-start type or a heating start type, the heating self-start type can indicate that the heating device is abnormally started when the current clothes dryer is running, that is, when the drying function of the clothes dryer is turned off, the heating device is abnormally self-started for heating. The heating start type can indicate that the heating device is started normally when the clothes dryer is currently running, that is, the heating device is started and heated normally when the drying function of the clothes dryer is turned on; and the target operation corresponding to the operation type can indicate the pre-configured preset operations corresponding to each operation type, for example, the preset operation corresponding to the heating self-start type is the fan start operation, or the preset operation corresponding to the heating start type is the fan detection operation, so that when the heating device is abnormally started, the fan 31 can be started in time for heat dissipation, and when the heating device is normally started, it can detect whether the fan 31 is operating normally, thereby avoiding the situation where the fan 31 and the heating device cannot cooperate normally and the heating device continues to dry out, that is, it solves the problem of dry-burning risk in the PTC control method of the clothes dryer in the existing related technology, and can effectively reduce the dry-burning risk of the clothes dryer.

[0072] In an optional embodiment of the present application, the main control module 11 is used to determine the heating self-start type as the running type based on the zero-crossing level signal when the drying function state is the drying off state, and determine the fan start operation corresponding to the heating self-start type as the target operation; and execute the fan start operation on the fan 31 to obtain the operation execution result.

[0073] In this embodiment, when the clothes dryer is in the drying off state, the main control module 11 can determine whether the heating device is started according to the zero-crossing level signal, that is, when the heating device is determined to be started by the zero-crossing level signal, the heating self-start type can be determined as the running type, and the fan start operation corresponding to the heating self-start type can be determined as the target operation; and the fan start operation is performed for the fan 31 to obtain the operation execution result; wherein, the fan start operation can represent an operation for controlling the fan 31 to start, for example, when the clothes dryer is in the drying off state, and the zero-crossing level signal indicates that the heating device 21 is turned on and started, a fan start signal can be output, and the fan start signal is used to start the fan 31, and the operation execution result is the result of whether the fan 31 is started; that is, it plays a role in controlling the operation state of the fan 31 to switch to start through the fan start signal; and then, when the heating device 21 is abnormally started, the fan 31 can be started in time to prevent the heating device 21 of the clothes dryer from continuously burning dry, thereby solving the problem of the risk of burning dry in the PTC control method of the clothes dryer in the existing related technology, and can effectively reduce the risk of burning dry in the clothes dryer.

[0074] It should be noted that, in the process of the main control module 11 executing the fan start operation for the fan and obtaining the operation execution result, for example, in the process of outputting the fan start signal according to the zero-crossing level signal, it can be determined whether the zero-crossing level signal belongs to the preset first zero-crossing level signal; wherein, the first zero-crossing level signal can indicate the presence of a zero-crossing level signal, that is, when the zero-crossing level signal belongs to the preset first zero-crossing level signal, it indicates that the AC drive of the currently detected heating device 21 is in the turned-on state; on the other hand, since the current clothes dryer is in the drying off state, that is, at this time, the heating device 21 is in the drying off state of the clothes dryer, an abnormal start occurs; thereby, a fan start signal can be generated and output, and then the fan 31 is started by the fan start signal, so that when the heating device 21 is abnormally started, the fan 31 can be started in time to prevent the heating device 21 of the clothes dryer from continuously burning dry, thereby solving the problem of the risk of burning dry in the PTC control method of the clothes dryer in the existing related technology, and effectively reducing the risk of burning dry in the clothes dryer.

[0075] like Figure 2As shown, in an optional embodiment of the present application, the clothes drying machine anti-dry burning control system may also include a fan detection module 13, the output end of the fan detection module 13 is electrically connected to the second input end of the main control module 11, and the input end of the fan detection module 13 is electrically connected to the first output end of the main control module 11; the fan detection module 13 is used to detect the fan detection signal corresponding to the fan 31, and output the fan detection signal to the second input end of the main control module 11; the main control module 11 is also used to determine the operation type of the heating start type according to the zero-crossing level signal and the fan detection signal when the drying function state is the drying-on state, and determine the fan detection operation corresponding to the heating start type as the target operation; and perform the fan detection operation on the fan 31 to obtain the operation execution result.

[0076] The fan detection module 13 in this embodiment can be electrically connected to the fan 31 of the clothes drying machine, that is, the fan detection module 13 can detect the fan detection signal corresponding to the fan 31, and output the fan detection signal to the second input terminal of the main control module 11, wherein the fan detection signal can include one or more signals, which is not specifically limited in this embodiment. When the main control module 11 determines that the drying function state is the drying-on state, it can determine the operation type according to the received zero-crossing level signal and the fan detection signal, and determine the fan detection operation corresponding to the heating start type as the target operation; and perform a fan detection operation on the fan 31 to obtain an operation execution result, wherein the fan detection operation can represent an operation to detect whether the fan 31 is turned on normally, and the operation execution result can represent the fan detection result generated after checking the fan 31, and the fan detection result can be It indicates a normal result of the fan or an abnormal result of the fan. The normal result of the fan can indicate the result of the normal start-up and operation of the fan 31, and the abnormal result of the fan can indicate the result of the abnormal operation of the fan 31. Therefore, when the drying function of the clothes dryer is turned on, that is, when the heating device 21 is started normally, the fan 31 can be detected in real time, which plays a role in timely detecting the fan 31 to prevent the abnormality of the fan 31 after the heating device 21 of the clothes dryer is started normally, resulting in the problem of continuous dry burning of the heating device 21. This solves the problem of dry burning risk in the PTC control method of the clothes dryer in the existing related technology, and can effectively reduce the risk of dry burning of the clothes dryer.

[0077] In an optional embodiment of the present application, the clothes drying machine anti-dry burning control system may also include: a fan detection module 13, which is also used to detect a fan status detection signal and a fan current detection signal corresponding to the fan 31; a main control module 11, which is also used to determine whether the fan current detection signal belongs to a preset current range when the fan status detection signal is a normal fan status signal; and when the fan current detection signal does not belong to the preset current range, generate a fan detection result, and determine the fan detection result as the operation execution result.

[0078] The fan detection module 13 of the present embodiment is also used to detect the fan state detection signal and the fan current detection signal corresponding to the fan 31, and the fan state detection signal and the fan current detection signal can be output as the fan detection signal to the second input end of the main control module 11; so that the main control module 11 can extract the fan state detection signal and the fan current detection signal from the received fan detection signal, wherein the fan state detection signal can be used as a detection signal indicating the operating state of the fan 31, such as the fan state detection signal can be a normal fan state signal or an abnormal fan state signal, and the normal fan state signal is used to indicate that the operating state of the fan 31 is in a normal state. The abnormal fan status signal is used to indicate that the fan 31 is in an abnormal state, while the fan current detection signal can indicate the current value of the fan 31. Thus, the main control module 11 may include but is not limited to the following process when performing the fan detection operation: determining whether the fan status detection signal is a normal fan status signal. When the fan status detection signal is an abnormal fan status signal, it indicates that the fan 31 is in an abnormal state and cannot be started normally. At this time, the fan abnormality prompt information may be output. The fan abnormality prompt information may specifically include but is not limited to application pop-up prompts, buzzer prompts, warning light prompts, etc. This embodiment does not specifically limit this. When the fan status detection signal is a normal fan status signal, it indicates that the fan 31 has started normally. At this time, it may be determined whether the current value of the fan current detection signal is within the preset current range. The preset current range indicates the current range for the normal operation of the fan 31, for example, the preset current range may be a range greater than 0.1 amperes. When the current value of the fan current detection signal is within the preset current range, it means that the current of the fan 31 is normal, that is, the fan 31 is in a normal startup state and the current value is normal, and there is no need to execute subsequent steps at this time; when the current value of the fan current detection signal is not within the preset current range, it means that the fan 31 is in a normal startup state but the current value is abnormal. At this time, the alarm result can be determined as the operation execution result, and the operation execution result can be used to indicate that the current operating state of the clothes drying machine is abnormal; that is, when the operation execution result is an alarm result, a preset alarm operation can be performed, such as application push information, detection report log, etc., and this embodiment does not make specific limitations on this.

[0079] like Figure 3 As shown, in an optional embodiment of the present application, the clothes drying machine anti-dry burning control system may further include an alarm module 14, the input end of the alarm module 14 is electrically connected to the second output end of the main control module 11; the main control module 11 is also used to output an alarm signal to the input end of the alarm module 14 when the operation execution result is an alarm result; the alarm module 14 is used to execute an alarm operation based on the alarm signal.

[0080] In the process of outputting the fan detection result of the clothes drying machine, the main control module 11 of this embodiment performs clothes drying machine operation detection according to the zero-crossing level signal and the fan detection signal when the clothes drying machine is in the drying on state, wherein the clothes drying machine operation detection can respectively determine whether the zero-crossing level signal and the fan detection signal correspond to the preset alarm conditions corresponding to the drying on state, wherein the preset alarm conditions can represent the pre-configured conditions for alarming, for example, when the clothes drying machine is in the drying on state, the corresponding alarm conditions can include but are not limited to the zero-crossing level signal not belonging to the first zero-crossing level signal, and the fan detection signal does not meet the preset fan 31 signal; when the zero-crossing level signal and the fan detection signal meet the preset alarm conditions, the operation execution result can be determined to be an alarm result, indicating that there is an abnormality in the current operation of the clothes drying machine, and an alarm signal can be generated at this time, and the alarm signal can be output to the input end of the alarm module 14 in parallel, so that the alarm module 14 can perform an alarm operation according to the alarm signal, wherein the alarm operation can include but is not limited to the pop-up window of the application, the buzzer is started, the alarm light is turned on, etc., and this embodiment does not make specific restrictions on this.

[0081] like Figure 4 As shown, in an optional embodiment of the present application, the alarm module 14 includes a network communication unit 142 and / or a prompt unit 141, the network communication unit 142 is connected to the main control module 11, and is used to output application alarm information to a preset client according to the alarm signal; the input end of the prompt unit 141 is electrically connected to the main control module 11, and is used to output a prompt signal according to the alarm signal. Specifically, the input end of the network communication unit 142 is electrically connected to the second output end of the main control module 11, and the input end of the prompt unit 141 is electrically connected to the second output end of the main control module 11.

[0082] In this embodiment, the network communication unit 142 can output application prompt information to the preset client based on the alarm signal, wherein the preset client can represent a client that has a binding link with the clothes drying machine, and the application prompt information can represent information used to prompt the user in the client, such as pop-up information, tweet information, etc.; and the prompt unit 141 can be a prompt device pre-configured on the clothes drying machine, such as a buzzer, a light-emitting device, etc. The prompt unit 141 outputs a prompt signal based on the alarm signal, wherein the prompt signal can be a signal specifically emitted by the prompt device. For example, when the prompt device is a buzzer, the output prompt signal can be a sound signal, and when the prompt device is a light-emitting device, the output prompt signal can be a light signal. Of course, other prompt devices can also be used, and this embodiment does not specifically limit this.

[0083] like Figure 5As shown, in an optional embodiment of the present application, the zero-crossing detection module 12 includes a relay J3 and a photocoupler U6; the power supply end of the heating device 21 and the first end of the photocoupler U6 are electrically connected to the AC live wire ACL, and the line of the AC live wire ACL is electrically connected to the relay J3, and the fourth end of the relay J3 and the photocoupler U6 are also electrically connected to the main control module 11; the relay J3 is used to turn on or off the AC live wire ACL under the control of the main control module 11, so that the heating device 21 and the photocoupler U6 are connected to or disconnected from the AC power.

[0084] In this embodiment, the relay J3 can be connected in series to the line of the AC live wire ACL, so that the conduction or disconnection of the relay J3 can control the heating device 21 and the photoelectric coupler U6 to connect or disconnect the AC power; the relay J3 is electrically connected to the main control module 11, so that the relay J3 can receive the relay control instruction output by the main control module 11, and be turned on or off according to the relay control instruction.

[0085] like Figure 5 As shown, in an optional embodiment of the present application, the zero-crossing detection module 12 also includes a first diode ZD4; the first end of the relay J3, the second end of the relay J3, the first end of the first diode ZD4, and the first end of the photoelectric coupler U6 are electrically connected to the AC live line ACL, the second end of the first diode ZD4 and the second end of the photoelectric coupler U6 are electrically connected to the AC neutral line ACN, the third end of the photoelectric coupler U6 is electrically connected to the reference ground, the fourth end of the photoelectric coupler U6 is electrically connected to the first input end of the main control module 11, the first end of the relay J3 is also electrically connected to the heating device 21, and the control end of the relay J3 is electrically connected to the main control module.

[0086] In this embodiment, the zero-crossing detection module 12 may further include a second resistor R78, a third resistor R79, a fourth resistor R77, a fifth resistor R80, and a third capacitor C55; a first end of the second resistor R78, a first end of the relay J3, and a mains live wire are electrically connected; a second end of the second resistor R78 is electrically connected to a first end of the third resistor R79, a second end of the third resistor R79, a first end of the first diode ZD4, and a first end of the photoelectric coupler U6 are electrically connected; a first end of the fourth resistor R77, a fourth end of the photoelectric coupler U6, and a fifth resistor R The first end of the fourth resistor R77 is electrically connected to the power input terminal, the second end of the fifth resistor R80, the first end of the third capacitor C55 and the first input terminal of the main control module 11 are electrically connected, the second end of the third capacitor C55 and the third end of the photocoupler U6 are electrically connected to the reference ground, the third end of the relay J3 is electrically connected to the voltage input terminal, and the fourth end of the relay J3 is electrically connected to the relay control terminal of the main control module 11; so that the main control module 11 can output a relay control instruction to the fourth end of the relay J3 through the relay control terminal.

[0087] In specific implementation, when the clothes drying machine is switched to the drying on state, the first end of the relay J3 and the second end of the relay J3 are attracted and turned on. Since the first end of the relay J3 and the second end of the relay J3 are also electrically connected to the heating device 21, that is, the first end of the relay J3 and the second end of the relay J3 are attracted and turned on, which can play the role of turning on the heating device 21; at this time, the AC voltage input by the mains live wire ACL and the mains neutral wire ACN first passes through the current limiting of the second resistor R78 and the third resistor R79, and then passes through the first diode ZD4, the function of the first diode ZD4 is to stabilize the positive half axis of the AC voltage at 5V, and to turn on the protective photocoupler U6 in the negative half cycle, so that after the AC voltage passes through the photocoupler U6, the positive half cycle makes the photocoupler U6 turned on, and the negative half cycle makes the photocoupler U6 not turned on; that is, the AC signal becomes a 50HZ 50% duty cycle PWM signal after passing through the photocoupler U6, and then the PWM signal is limited by the fifth resistor R80 and filtered by the third capacitor C55, and then absorbed by the receiving pin corresponding to the first input end of the main control module 11.

[0088] It can be seen that the zero-crossing detection module 12 in this embodiment can detect that the relay J3 turns on the 220V mains power, and each time the alternating current of the 220V mains power passes through the zero point, the level at the first input end of the main control module 11 will experience a high-low level flip, so the first input end of the main control module 11 is a PWM with a duty cycle of 50%; when there is no mains power, the first input end of the main control module 11 is a low level, so that the main control module 11 can judge whether the heating device 21 is in a working state according to the zero-crossing level signal of the first input end of the main control module 11.

[0089] like Figure 6 As shown, in an optional embodiment of the present application, the fan detection module 13 includes a wiring terminal unit 131 and a sampling unit 132;

[0090] The first end of the wiring terminal unit 131 is electrically connected to the power input end, the second end of the wiring terminal unit 131 is electrically connected to the first output end of the main control module 11, the third end of the wiring terminal unit 131 is electrically connected to the status end of the fan 31 of the main control module 11, the fourth end of the wiring terminal unit 131 is electrically connected to the first end of the sampling unit 132, and the second end of the sampling unit 132 is electrically connected to the voltage collection end of the main control module 11; the first end of the wiring terminal unit 131, the second end of the wiring terminal unit 131, the third end of the wiring terminal unit 131 and the fourth end of the wiring terminal unit 131 are also electrically connected to the fan 31.

[0091] like Figure 6As shown, in an optional embodiment of the present application, the sampling unit 132 includes: a sampling resistor R39, a first resistor R40, a first inductor L5, a first capacitor EC8, a second capacitor C33, a second diode D7 and a third diode D8;

[0092] The first end of the sampling resistor R39, the first end of the first inductor L5, and the fourth end of the wiring terminal unit 131 are electrically connected, the second end of the first inductor L5, the first end of the first capacitor EC8, the first end of the second capacitor C33, and the first end of the first resistor R40 are electrically connected, the second end of the sampling resistor R39, the second end of the first capacitor EC8, the second end of the second capacitor C33, and the reference ground are electrically connected, the second end of the first resistor R40, the first end of the second diode D7, the second end of the third diode D8, and the voltage collection end of the main control module 11 are electrically connected, the first end of the third diode D8 is electrically connected to the reference ground, and the second end of the second diode D7 is electrically connected to the power input end.

[0093] In a specific implementation, the wiring terminal unit 131 can be a wiring terminal of the DC fan 31. The first end of the wiring terminal unit 131 is used to input the working power to the motor of the DC fan 31, and then flow back to the reference ground from the fourth end of the wiring terminal unit 131. The second end of the wiring terminal unit 131 is electrically connected to the first output end of the main control module 11, so that the DC fan 31 can receive the fan start signal output by the first output end of the main control module 11 through the second end of the wiring terminal unit 131. The fan start signal can specifically be a 1000Hz 0~100% duty cycle pulse width modulation (PulseWidth Modulation, PWM), thereby controlling the speed of the fan 31; the third end of the wiring terminal unit 131 is electrically connected to the fan 31 status end of the main control module 11, so that the third end of the wiring terminal unit 131 can transmit the fan status detection signal received from the fan 31 motor to the fan 31 status end of the main control module 11. Specifically, the fan status detection signal can be a high level or a low level. The high level indicates that the fan 31 motor is abnormal, and the low level indicates that the fan 31 motor is working normally; a high-precision sampling resistor R39 with a resistance of 0.1 ohm is used. After the current flows through the resistor, the voltage at its high potential can be obtained according to Ohm's law U=IR. After the voltage is filtered by the first inductor L5, the first capacitor EC8, and the second capacitor C33, after the current is limited by the first resistor R40 and the protection of the second diode D7 and the third diode D8, the voltage is transmitted to the voltage acquisition end of the main control module 11, so that the main control module 11 uses an internal analog to digital converter (Analog to Digital The voltage is detected by an analog converter (ADC) and the current flowing through the first resistor R40 is inferred by Ohm's law, thereby obtaining a fan current detection signal, which is the overall load current of the fan 31 motor.

[0094] It can be seen that in this embodiment, after the voltage output by the fan detection module 13 is received by the voltage acquisition end of the main control module 11, the current flowing through the first resistor R40 is obtained, that is, the fan current detection signal, which is the overall load current of the fan 31 motor; and the fan 31 motor status collected by the third end of the terminal unit 131 is received by the fan 31 status end of the main control module 11, that is, the fan status detection signal, so as to generate a fan detection signal based on the fan current detection signal and the fan status detection signal; and then, the fan detection signal can be used to determine whether the fan 31 of the clothes drying machine is working normally.

[0095] Figure 7 A flow chart of a method for controlling a clothes drying machine to prevent dry burning provided in an embodiment of the present application. This method can be applied to one or more electronic devices such as a clothes drying machine and a control device. In addition, the execution subject of this method can be hardware or software. When the above-mentioned execution subject is hardware, the execution subject can be one or more of the above-mentioned electronic devices. For example, a single electronic device can execute this method, or multiple electronic devices can cooperate with each other to execute this method. When the above-mentioned execution subject is software, this method can be implemented as multiple software or software modules, or as a single software or software module. No specific limitation is made here.

[0096] like Figure 7 As shown, an embodiment of the present application provides a method for controlling a clothes drying machine to prevent dry burning. The clothes drying machine is equipped with a fan and a heating device, and the method may specifically include the following steps:

[0097] Step S110: obtaining a zero-crossing level signal corresponding to the heating device and a drying function status of the clothes drying machine.

[0098] Among them, the heating device can be a device with a heating function, such as a PTC heating wire, a heating tube, a resistance wire, etc.; and the zero-crossing level signal corresponding to the heating device can represent a signal detected at the zero point position in the AC waveform corresponding to the heating device. The specific acquisition method can be obtained through a preset pin. Of course, the zero-crossing level signal can be a voltage signal, a high-level signal, a low-level signal, etc., and this embodiment does not make specific limitations on this; and the drying function state of the clothes drying machine can indicate whether the drying function of the clothes drying machine is turned on, for example, the drying function state can be a drying-off state or a drying-on state. The drying-off state indicates that the drying function of the clothes drying machine is in a turned-off state, and the drying-on state indicates that the drying function of the clothes drying machine is in an turned-on state.

[0099] Step S120: determining the operation type corresponding to the clothes drying machine based on the zero-crossing level signal and the drying function state.

[0100] Specifically, after obtaining the zero-crossing level signal and the drying function status, the operation type corresponding to the clothes drying machine can be determined according to the zero-crossing level signal and the drying function status. The operation type can indicate the specific type of the current operation of the clothes drying machine. For example, the operation type can be a heating self-start type or a heating start type. The heating self-start type can indicate that the heating device is abnormally started when the clothes drying machine is currently running, that is, the heating device is abnormally self-started and heated when the drying function of the clothes drying machine is turned off. The heating start type can indicate that the heating device is normally started when the clothes drying machine is currently running, that is, the heating device is normally started and heated when the drying function of the clothes drying machine is turned on.

[0101] Step S130: executing a target operation corresponding to the operation type for the wind turbine, and obtaining an operation execution result.

[0102] Specifically, after obtaining the operation type, the target operation corresponding to the operation type can be executed for the fan to obtain the operation execution result, wherein the target operation corresponding to the operation type can represent the pre-configured preset operations corresponding to each operation type, for example, the preset operation corresponding to the heating self-start type is the fan start operation, or the preset operation corresponding to the heating start type is the fan detection operation, thereby being able to start the fan in time for heat dissipation when the heating device is abnormally started, and being able to detect whether the fan is operating normally when the heating device is normally started, thereby avoiding the situation where the fan and the heating device cannot cooperate normally and the heating device continues to dry burn, that is, solving the problem of dry burning risk in the PTC control method of the clothes dryer in the existing related technology, and being able to effectively reduce the dry burning risk of the clothes dryer.

[0103] like Figure 8 As shown, in an optional embodiment of the present application, based on the zero-crossing level signal and the drying function state, determining the operation type corresponding to the clothes drying machine may further include the following steps:

[0104] Step S111: when the drying function state is the drying off state, according to the zero-crossing level signal, the heating self-start type is determined as the running type, and the fan start operation corresponding to the heating self-start type is determined as the target operation;

[0105] In the process of determining the operation type corresponding to the clothes drying machine based on the zero-crossing level signal and the drying function state, the embodiment can determine the specific state of the drying function state. When the drying function state is the drying off state, the heating self-start type is determined as the operation type according to the zero-crossing level signal, and the start fan operation corresponding to the heating self-start type is determined as the target operation; wherein the start fan operation can represent an operation for controlling the fan to start, for example, when the clothes drying machine is in the drying off state and the zero-crossing level signal indicates that the heating device is turned on and started, a fan start signal can be output, and the fan start signal is used to start the fan. At this time, the operation execution result is the result of whether the fan is started; that is, it plays a role in controlling the fan operation state to switch to start through the fan start signal; and further, when the heating device is abnormally started, the fan can be started in time to prevent the heating device of the clothes drying machine from continuously burning dry, thereby solving the problem of the risk of burning dry in the PTC control method of the clothes drying machine in the existing related technology, and can effectively reduce the risk of burning dry in the clothes drying machine.

[0106] It should be noted that, in the process of executing the fan start operation for the fan and obtaining the operation execution result, that is, in the process of outputting the fan start signal based on the zero-crossing level signal, it can be determined whether the zero-crossing level signal belongs to the preset first zero-crossing level signal; wherein, the first zero-crossing level signal can indicate the existence of a zero-crossing level signal, that is, when the zero-crossing level signal belongs to the preset first zero-crossing level signal, it indicates that the AC drive of the currently detected heating device is in the turned-on state; on the other hand, since the current clothes dryer is in the drying off state, that is, at this time the heating device is in the drying off state of the clothes dryer, an abnormal start-up occurs; thereby, a fan start signal can be generated and output, and then the fan is started by the fan start signal, so as to achieve the purpose of starting the fan in time when the heating device starts abnormally to prevent the heating device of the clothes dryer from continuously burning dry, thereby solving the problem of the risk of burning dry in the PTC control method of the clothes dryer in the existing related technology, and effectively reducing the risk of burning dry in the clothes dryer.

[0107] In one example, when the fan control signal is a fan start signal, the fan can be started based on the fan start signal, wherein a specific starting method may be to directly output a start electrical signal to the fan based on the fan start signal to start the fan, or the fan start signal may be output to a fan control module so that the fan control module starts the fan based on the fan start signal. Of course, other fan starting methods may also be used, and this embodiment does not specifically limit this.

[0108] It can be seen that this embodiment obtains the zero-crossing level signal corresponding to the heating device, and generates a fan start signal according to the zero-crossing level signal when the clothes dryer is in the drying-off state, so as to start the fan based on the fan start signal; thereby, when the clothes dryer is in the drying-off state, it is judged whether the heating unit is abnormally started according to the zero-crossing level signal, and when the heating unit is abnormally started, the fan start signal can be generated in time, and the fan start signal can be used to start the fan; thereby, the heating device of the clothes dryer can be prevented from continuing to dry-burn after the abnormal start, which solves the problem of dry-burning risk in the PTC control method of the clothes dryer in the existing related technology, and can effectively reduce the dry-burning risk of the clothes dryer.

[0109] Step S112: when the drying function state is the drying on state, determining whether the zero-crossing level signal belongs to a preset first zero-crossing level signal;

[0110] Step S113: when the zero-crossing level signal is a first zero-crossing level signal, obtaining a fan detection signal corresponding to the fan;

[0111] Step S114: determining the operation type according to the heating start type based on the zero-crossing level signal and the fan detection signal, and determining the fan detection operation corresponding to the heating start type as the target operation.

[0112] In this embodiment, when the drying function state is the drying on state, it means that the drying function state of the clothes drying machine is in the on state at this time. At this time, it can be determined whether the zero-crossing level signal belongs to the preset first zero-crossing level signal. When the zero-crossing level signal belongs to the first zero-crossing level signal, it means that the heating device is out of the on state at this time, so that the fan detection signal corresponding to the fan can be obtained, and the fan detection signal can represent the detection signal corresponding to the current operating state of the fan; and then, according to the zero-crossing level signal and the fan detection signal, the heating start type can be determined as the operating type, and the fan detection operation corresponding to the heating start type can be determined as the target operation; wherein the fan detection operation can represent the detection of the fan The operation of whether it is turned on normally, and the operation execution result can represent the fan detection result generated after checking the fan, the fan detection result can represent the normal result of the fan or the abnormal result of the fan, the normal result of the fan can represent the result of normal start-up and operation of the fan, and the abnormal result of the fan can represent the result of abnormal operation of the fan; thereby, the fan can be detected in real time when the clothes dryer turns on the drying function, that is, when the heating device starts normally, the fan can be detected in real time, which plays a role in timely detecting the fan to prevent the fan from being abnormal after the heating device of the clothes dryer starts normally, resulting in the problem of continuous dry burning of the heating device, thereby solving the problem of dry burning risk of the PTC control method of the clothes dryer in the existing related technology, and can effectively reduce the risk of dry burning of the clothes dryer.

[0113] It should be noted that, in this embodiment, when the drying function state is the drying on state, after determining whether the zero-crossing level signal belongs to the preset first zero-crossing level signal, it may also include, when the zero-crossing level signal does not belong to the preset first zero-crossing level signal, it indicates that the current heating device has not started normally, that is, the heating device has an abnormality. At this time, a heating device abnormality signal can be generated, and a prompt information can be output through the heating device abnormality signal, so that the user can be prompted according to the prompt information. The prompt information can specifically include but is not limited to application pop-up prompts, buzzer prompts, warning light prompts, etc., and this embodiment does not make specific limitations on this.

[0114] It can be seen that the present embodiment can determine whether the drying function of the current clothes drying machine is turned on by the drying function state of the clothes drying machine. In the drying off state, it can be determined whether the zero-crossing level signal belongs to the preset first zero-crossing level signal, and when the zero-crossing level signal belongs to the preset first zero-crossing level signal, the target operation corresponding to the operation type of the fan is to generate a fan start signal, and the operation execution result is obtained according to the execution result of the fan start signal; and in the drying on state, if the zero-crossing level signal belongs to the first zero-crossing level signal, the fan detection signal corresponding to the fan is obtained, and the target operation corresponding to the operation type of the fan is to perform clothes drying machine operation detection according to the fan detection signal, and generate the operation execution result of the clothes drying machine. That is, the present embodiment can use different detection methods to check the heating device and fan of the clothes drying machine in different scenarios of turning on and off the drying function, thereby avoiding the problem of dry burning risk caused by abnormal heating device or fan, and can effectively reduce the dry burning risk of the clothes drying machine.

[0115] In an optional embodiment of the present application, a target operation corresponding to the operation type is executed for the fan to obtain an operation execution result, which may specifically include the following steps: when the target operation is a fan detection operation, extracting a fan status detection signal and a fan current detection signal from the fan detection signal; when the fan status detection signal is a normal fan status signal, determining whether the current value of the fan current detection signal is within a preset current range; when the current value of the fan current detection signal is not within the preset current range, generating an alarm signal; and generating an operation execution result based on the alarm signal.

[0116] In this embodiment, when the target operation is a fan detection operation, a fan status detection signal and a fan current detection signal are extracted from the fan detection signal, wherein the fan status detection signal can be used to indicate a detection signal of the fan operating status, such as the fan status detection signal can be a normal fan status signal or an abnormal fan status signal, the normal fan status signal is used to indicate a signal that the fan operating status is in a normal state, the abnormal fan status signal is used to indicate a signal that the fan operating status is in an abnormal state, and the fan current detection signal can indicate a signal of the size of the corresponding current value of the fan; thereby, it can be determined whether the fan status detection signal is a normal fan status signal. When the fan status detection signal is an abnormal fan status signal, it indicates that the fan is in an abnormal state and cannot be started normally. At this time, the fan abnormality prompt information can be output, and the fan abnormality prompt information can specifically include but is not limited to an application pop-up prompt, a buzzer prompt, a warning light prompt, etc., and this embodiment does not make specific limitations on this. When the fan status detection signal is a normal fan status signal, it means that the fan has started normally at this time. At this time, it can be determined whether the current value of the fan current detection signal is within the preset current range; wherein, the preset current range indicates the current range for the normal operation of the fan pre-configured, for example, the preset current range can be a range greater than 0.1 amperes. When the current value of the fan current detection signal is within the preset current range, it means that the fan current is normal, that is, the fan is in a normal start-up state and the current value is normal, and there is no need to perform subsequent steps at this time; and when the current value of the fan current detection signal is not within the preset current range, it means that the fan 31 is in a normal start-up state but the current value is abnormal, and the alarm result can be determined as the operation execution result, and the operation execution result can be used to indicate the abnormal result of the current operation state of the clothes drying machine; that is, when the operation execution result is an alarm result, a preset alarm operation can be performed, such as application push information, detection report log, etc., which is not specifically limited in this embodiment.

[0117] In specific implementation, after the clothes dryer is turned on, it is in a normal standby state. At this time, the drying function state is in a drying off state. The zero-crossing detection module detects the zero-crossing level signal of the heating device. When the zero-crossing level signal is the first zero-crossing level signal, that is, when the zero-crossing level signal is without a zero-crossing level, it indicates that the heating device is in an off state. Therefore, the heating device working system is normal and there is no need to perform subsequent steps; when the zero-crossing level signal does not belong to the first zero-crossing level signal, that is, when the zero-crossing level signal is with a zero-crossing level, it is considered that the heating device is in an uncontrolled on state. Therefore, the heating device is in an abnormal start-up dry-burning situation. At this time, a fan start signal can be generated to control the fan to start, so as to achieve the effect of turning on the fan for cooling. The preset client pop-up window bound to the clothes dryer and the buzzer alarm sound of the clothes dryer itself can also continuously remind the user to cut off the power for system inspection. When the drying function state of the clothes drying machine is in the drying on state, when the zero-crossing level signal does not belong to the first zero-crossing level signal, that is, when the zero-crossing level signal is no zero-crossing level, it is considered that the heating device is in a state where the system is controlled to be on but not turned on. At this time, it can be determined that the heating device has a heating failure, and an alarm signal is generated. The user is prompted based on the alarm signal. For example, a preset client pop-up window bound to the clothes drying machine and a buzzer alarm sound of the clothes drying machine itself can be used to continuously remind the user to cut off the power for system inspection; when the zero-crossing level signal belongs to the first zero-crossing level signal, that is, when the zero-crossing level signal is zero-crossing level, it is considered that the heating device is in a state where the system is controlled to be normally turned on. Then, the fan detection signal output by the fan detection module can be used to determine whether the fan is turned on normally. Specifically, the fan state detection signal and the fan current detection signal can be extracted from the fan detection signal. When the fan status detection signal is a normal fan status signal, it can be determined whether the current value of the fan current detection signal is within the preset current range. For example, if the current value of the fan current detection signal is above 0.1 amperes, it is considered to be within the preset current range. At this time, it can be determined that the fan is turned on normally, thereby determining the operation execution result that the system controls the drying to be turned on and the heating device and the fan are working normally. Then, the execution of step S110 and subsequent steps can be returned to achieve the purpose of continuously looping the detection of the clothes drying machine. In the case that the current value of the fan current detection signal is not within the preset current range, such as the current value of the fan current detection signal is less than 0.1 amperes, an alarm signal can be generated at this time, and the user can be prompted based on the alarm signal. For example, a preset client pop-up window bound to the clothes drying machine and a buzzer alarm sound of the clothes drying machine itself can be used to continuously remind the user to turn off the power for system inspection.

[0118] like Fig. 9 As shown, an embodiment of the present application provides an electronic device, including a processor 910, a communication interface 920, a memory 930 and a communication bus 940, wherein the processor 910, the communication interface 920, and the memory 930 communicate with each other through the communication bus 940;

[0119] Memory 930, used for storing computer programs;

[0120] In one embodiment of the present application, the processor 910 is used to execute the program stored in the memory 930 to implement the clothes drying machine anti-dry burning control method provided by any of the aforementioned method embodiments, and detects the zero-crossing level signal corresponding to the heating device through the zero-crossing detection module, so that the main control module receives the zero-crossing level signal, and determines the corresponding operation type of the clothes drying machine according to the zero-crossing level signal and the drying function status of the clothes drying machine; and executes the target operation corresponding to the operation type for the fan to obtain the operation execution result; thereby, the corresponding target operation can be performed on the fan in combination with the zero-crossing level signal corresponding to the heating device and the drying function status of the clothes drying machine, thereby improving the accuracy of the fan control, avoiding the situation where the fan and the heating device cannot cooperate normally and the heating device continues to dry burn, that is, solving the problem of dry burning risk in the PTC control method of the clothes drying machine in the existing related technology, and can effectively reduce the dry burning risk of the clothes drying machine.

[0121] The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the clothes drying machine anti-dry burning control method provided by any of the aforementioned method embodiments, wherein the zero-crossing level signal corresponding to the heating device is detected by the zero-crossing detection module, so that the main control module receives the zero-crossing level signal, and determines the corresponding operation type of the clothes drying machine according to the zero-crossing level signal and the drying function status of the clothes drying machine; and executes the target operation corresponding to the operation type for the fan to obtain the operation execution result; thereby, the corresponding target operation can be executed on the fan in combination with the zero-crossing level signal corresponding to the heating device and the drying function status of the clothes drying machine, thereby improving the accuracy of the fan control, avoiding the situation where the fan and the heating device cannot cooperate normally and the heating device continues to dry burn, that is, solving the problem of dry burning risk in the PTC control method of the clothes drying machine in the existing related technology, and can effectively reduce the dry burning risk of the clothes drying machine.

[0122] An embodiment of the present application provides a clothes drying machine, comprising the clothes drying machine anti-dry burning control system described in any of the aforementioned embodiments, wherein a zero-crossing detection module detects a zero-crossing level signal corresponding to a heating device, so that a main control module receives the zero-crossing level signal, and determines the corresponding operation type of the clothes drying machine according to the zero-crossing level signal and the drying function status of the clothes drying machine; and executes a target operation corresponding to the operation type for the fan to obtain an operation execution result; thereby, the corresponding target operation can be executed on the fan in combination with the zero-crossing level signal corresponding to the heating device and the drying function status of the clothes drying machine, thereby improving the accuracy of fan control, avoiding the situation in which the fan and the heating device cannot cooperate normally and the heating device continues to dry burn, that is, solving the problem of dry burning risk in the PTC control method of the clothes drying machine in the existing related technology, and can effectively reduce the dry burning risk of the clothes drying machine.

[0123] An embodiment of the present application provides a clothes drying machine, comprising the clothes drying machine anti-dry burning control system described in any of the aforementioned embodiments, wherein a zero-crossing detection module detects a zero-crossing level signal corresponding to a heating device, so that a main control module receives the zero-crossing level signal, and determines the corresponding operation type of the clothes drying machine according to the zero-crossing level signal and the drying function status of the clothes drying machine; and executes a target operation corresponding to the operation type for the fan to obtain an operation execution result; thereby, the corresponding target operation can be executed on the fan in combination with the zero-crossing level signal corresponding to the heating device and the drying function status of the clothes drying machine, thereby improving the accuracy of fan control, avoiding the situation in which the fan and the heating device cannot cooperate normally and the heating device continues to dry burn, that is, solving the problem of dry burning risk in the PTC control method of the clothes drying machine in the existing related technology, and can effectively reduce the dry burning risk of the clothes drying machine.

[0124] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0125] The above describes specific embodiments of the present specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0126] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A clothes drying machine anti-dry burning control system, characterized in that: It includes a zero-crossing detection module and a main control module; the clothes drying machine is equipped with a fan and a heating device; The zero-crossing detection module is connected to the heating device and is used to detect the zero-crossing level signal corresponding to the heating device; The main control module is connected to the zero-crossing detection module, and is used to receive a zero-crossing level signal, and determine the corresponding operation type of the clothes drying machine according to the zero-crossing level signal and the drying function state of the clothes drying machine; And execute the target operation corresponding to the operation type for the wind turbine to obtain the operation execution result.

2. The clothes drying machine anti-dry burning control system according to claim 1, characterized in that: The main control module is used for determining the heating self-start type as the operation type according to the zero-crossing level signal when the drying function state is the drying off state, and determining the fan start operation corresponding to the heating self-start type as the target operation; The fan start-up operation is performed on the fan to obtain the operation execution result.

3. The clothes drying machine anti-dry burning control system according to claim 1, characterized in that: It also includes a fan detection module; The fan detection module is used to detect a fan detection signal corresponding to the fan and output the fan detection signal to the main control module; The main control module is further configured to, when the drying function state is the drying on state, determine the operation type according to the heating start type based on the zero-crossing level signal and the fan detection signal, and determine the fan detection operation corresponding to the heating start type as the target operation; The fan detection operation is performed on the fan to obtain the operation execution result.

4. The clothes drying machine anti-dry burning control system according to claim 1, characterized in that: The zero-crossing detection module includes a relay and a photoelectric coupler; The power supply end of the heating device and the first end of the photoelectric coupler are electrically connected to the mains live wire, and the mains live wire is electrically connected to the relay, and the fourth end of the relay and the photoelectric coupler is also electrically connected to the main control module; The relay is used to connect or disconnect the mains live wire under the control of the main control module, so that the heating device and the photoelectric coupler are connected to or disconnected from the mains.

5. The clothes drying machine anti-dry burning control system according to claim 3, characterized in that: The fan detection module includes a wiring terminal unit and a sampling unit; The first end of the wiring terminal unit is electrically connected to the power input end, the second end of the wiring terminal unit is electrically connected to the first output end of the main control module, the third end of the wiring terminal unit is electrically connected to the fan status end of the main control module, the fourth end of the wiring terminal unit is electrically connected to the first end of the sampling unit, and the second end of the sampling unit is electrically connected to the voltage collection end of the main control module; the first end of the wiring terminal unit, the second end of the wiring terminal unit, the third end of the wiring terminal unit and the fourth end of the wiring terminal unit are also electrically connected to the fan.

6. A method for controlling a clothes drying machine to prevent dry burning, characterized in that: The clothes drying machine is equipped with a fan and a heating device, and the method comprises: Acquire a zero-crossing level signal corresponding to the heating device and a drying function status of the clothes drying machine; Determining the operation type corresponding to the clothes drying machine based on the zero-crossing level signal and the drying function state; Execute a target operation corresponding to the operation type for the wind turbine to obtain an operation execution result.

7. The method for preventing dry burning of clothes drying machine according to claim 6, characterized in that: The determining, based on the zero-crossing level signal and the drying function state, the operation type corresponding to the clothes drying machine includes: When the drying function state is the drying off state, the heating self-start type is determined as the operation type according to the zero-crossing level signal, and the fan start operation corresponding to the heating self-start type is determined as the target operation; When the drying function state is the drying on state, determining whether the zero-crossing level signal belongs to a preset first zero-crossing level signal; When the zero-crossing level signal belongs to the first zero-crossing level signal, obtaining a fan detection signal corresponding to the fan; According to the zero-crossing level signal and the fan detection signal, the operation type is determined by the heating startup type, and the fan detection operation corresponding to the heating startup type is determined as the target operation.

8. The method for preventing dry burning of clothes drying machine according to claim 7, characterized in that: The step of executing the target operation corresponding to the operation type for the wind turbine to obtain the operation execution result includes: In a case where the target operation is the fan detection operation, extracting a fan state detection signal and a fan current detection signal from the fan detection signal; When the fan state detection signal is a fan state normal signal, determining whether the current value of the fan current detection signal is within a preset current range; When the current value of the fan current detection signal is not within the preset current range, an alarm signal is generated; The operation execution result is generated according to the alarm signal.

9. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; Memory, used to store computer programs; The processor is used to implement the clothes drying machine anti-dry burning control method as described in any one of claims 6 to 8 when executing the program stored in the memory.

10. A clothes drying machine, characterized in that: It includes the clothes drying machine anti-dry burning control system as described in any one of claims 1-5.

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