Method for treating abnormal temperature in hot air heating device

Abstract

To provide a method for handling abnormal temperature in a hot air heating device.SOLUTION: There is provided a method for handling an abnormal temperature in a hot air heating device, comprising the following steps of: S100 when a temperature rise of a temperature detection element in a first time interval Δt1 reaches ΔT1, determining occurrence of a temperature abnormality by a control module based on a temperature signal fed back from the temperature detection element to execute step S200; S200 when the control module starts a countdown and a temperature rise of the temperature detection element reaches ΔT2 within a second time interval Δt2, determining continuousness of a temperature abnormality by the control module based on a temperature signal fed back by the temperature detection element to execute step S300; and S300 executing a protection program by the control module. This method determines whether an abnormal temperature situation has reliably occurred in the device based on two dynamic temperature rise signals of the temperature detection element, and can greatly improve the accuracy of the determination. When no temperature abnormality occurs, a heater normally heats.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to the technical field of a method for operating a heating device, and more particularly to a method for treating an abnormal temperature condition used in a hot air heating device. [Background technology]

[0002] A heat gun is a heating tool used to heat air to form hot air, and has several functions. Specifically, the heat gun can be used to remove rust, remove old paint from metal surfaces, remove self-adhesive seals, heat and bend plastic tubes, dry wet wood, heat and shrink packaging films or packaging tubes, heat and shrink polyethylene used to connect metals, heat and soften welded objects, and can also use hot air to weld or remove elements.

[0003] In order to prevent the heat gun from overheating and being damaged, the existing heat gun generally has a fixed upper temperature limit. When the heating temperature of the heating wire reaches the upper temperature limit, the power supply element stops supplying power to the heating wire, causing the heating wire to stop heating. However, when the air outlet of the heat gun is clogged in a short time and cannot quickly discharge hot air, or when hot air cannot be quickly discharged due to other circumstances, the temperature of the heating wire will rise, and the heating temperature of the heating wire will easily reach the upper temperature limit and heating will stop. When the situation in which hot air cannot be quickly discharged is quickly resolved, the heating wire will be energized again to heat. In this situation, the heat gun can only judge whether heating needs to be stopped based on the actual temperature value of the heating wire, and cannot specifically judge whether the air outlet is clogged based on the specific situation. This is disadvantageous to improving the accuracy of the judgment and is also disadvantageous to ensuring the operation effect of the heat gun. Summary of the Invention [Problem to be solved by the invention]

[0004] In order to solve the shortcomings and deficiencies of the above-mentioned existing technology, the present invention provides a method for handling temperature abnormalities in a hot air heating device. A dynamic detection method is adopted to judge whether a temperature abnormality situation has indeed occurred, and a control module makes the heater stop heating when a temperature abnormality has indeed occurred, which is advantageous to improve the accuracy of judging the temperature abnormality situation and improve the operating efficiency of the device. [Means for solving the problem]

[0005] In order to achieve the above technical objective, the present invention provides a method for processing a temperature anomaly used in a hot air heating device, the hot air heating device including a housing, a control module, a hot air component provided in the housing, a power supply element used for supplying power, and a temperature detection element used for detecting the heating temperature. The hot air component includes a motor, a fan driven by the motor, and a heater that generates heat when energized, and the motor rotates the fan, which sends the heat generated by the heater from the housing through the air outlet to form a hot air flow that is used to heat an object. The power supply element, the motor, and the heater are all controlled by the control module, and the signal of the temperature detection element is connected to the control module. The method for processing a temperature anomaly includes the following steps: In step S100, if the temperature rise of the temperature detection element within the first time interval Δt1 reaches ΔT1, the control module determines that a temperature abnormality has occurred based on the temperature signal fed back from the temperature detection element, and executes step S200. Step S200: The control module starts a countdown. When the temperature rise of the temperature detection element within the second time interval Δt2 reaches ΔT2, the control module determines that the temperature abnormality persists based on the temperature signal fed back by the temperature detection element, and executes step S300. In step S300, the control module executes the protection program.

[0006] Preferably, the protection program executed by the control module commands the power supply element to stop supplying power to the heater.

[0007] Preferably, the temperature anomaly processing method further includes step S400. Step S400: When the temperature decrease of the temperature detection element within the third time interval Δt3 reaches ΔT3, based on the temperature signal fed back by the temperature detection element, the control module determines that the temperature abnormality has been resolved and commands the power supply element to supply power to the heater.

[0008] Preferably, the temperature detection element has a thermal equilibrium temperature value Tp, and in step S400, if the actual temperature value of the temperature detection element exceeds the thermal equilibrium temperature value Tp, the control module determines that the temperature abnormality persists based on the signal fed back by the temperature detection element. The control module obtains the actual temperature value of the temperature detection element in real time and records the maximum actual temperature value Tmax. If the temperature decrease from the maximum actual temperature value Tmax of the temperature detection element within the third time interval Δt3 reaches ΔT3, the control module determines that the temperature abnormality is removed based on the temperature signal fed back by the temperature detection element.

[0009] Preferably, the temperature sensing element is used to sense the temperature of a heater.

[0010] Preferably, the temperature sensing element is provided between the motor and the heater.

[0011] Preferably, a voltage dividing element is connected in series to the power supply connection circuit of the motor.

[0012] Preferably, ΔT1 is between 2° C. and 5° C.; and / or the first time interval Δt1 is between 2 seconds and 4 seconds.

[0013] Preferably, ΔT2 is between 2° C. and 5° C.; and / or the second time interval Δt2 is between 2 seconds and 4 seconds.

[0014] Preferably, ΔT3 is between 3° C. and 6° C.; and / or the third time interval Δt3 is between 1 second and 3 seconds. Effect of the Invention

[0015] By adopting the above technical solution, the present invention has the following advantages: 1. In the temperature abnormality processing method provided by the present invention, when the temperature detection element shows a temperature rise within a first time interval, the control module determines that the device has a temperature abnormality based on the temperature signal from the temperature detection element. When the temperature of the temperature detection element does not rise any more, it indicates that the temperature abnormality is promptly resolved, and the heater continues to heat. When the temperature detection element shows a temperature rise within a second time interval, the control module determines that the device has a temperature abnormality based on the temperature signal from the temperature detection element, and the control module accordingly executes a protection program. Through the protection program, the control module can command the power supply element to stop supplying power to the heater. In a situation where the device has a temperature abnormality, the heater continues to heat, which prevents the device from overheating and being damaged, and improves the safety of the device.

[0016] The temperature abnormality processing method provided by the present invention can judge whether the device has a temperature abnormality based on the two dynamic temperature rise signals of the temperature detection element, greatly improving the accuracy of judgment. When the device does not have a temperature abnormality, the heater can heat normally and ensure the operation effect of the device.

[0017] 2. When the temperature drop of the temperature detection element in the third time interval meets the required requirements, the heat inside the device can be discharged normally, which indicates that the abnormal temperature situation has been resolved. At this time, the control module commands the power supply element to supply power to the heater, and the heater can heat normally. The basis for the control module to judge whether the abnormal temperature situation has been resolved is reasonably set, which improves the accuracy of the judgment and ensures the operation stability of the device.

[0018] 3. When the actual temperature value of the temperature detection element exceeds the thermal equilibrium temperature value Tp, the control module judges that the abnormal temperature situation persists based on the actual temperature value of the temperature detection element. The control module obtains the actual temperature value of the temperature detection element in real time and records the maximum actual temperature value Tmax. When the temperature drop from the maximum actual temperature value Tmax of the temperature detection element within the third time interval reaches ΔT3, it indicates that the abnormal temperature situation has been resolved. Based on the dynamic temperature drop signal of the temperature detection element, the control module judges whether the abnormal temperature situation of the device has indeed been resolved, which is favorable to improving the accuracy of the judgment.

[0019] 4. The temperature detection element is used to detect the temperature of the heater, and the detection object of the temperature detection element can be reasonably set to improve the accuracy of detecting the heating temperature, and thus improve the accuracy of judging the temperature abnormality. The temperature detection element is preferably installed between the motor and the heater, and the temperature detection element can be installed as close as possible to the heater, which is advantageous to further improve the accuracy of detecting the heating temperature.

[0020] 5. A voltage dividing element is connected in series with the power supply connection circuit of the motor, and the voltage dividing element adjusts the voltage supplied by the power supply element to the motor, and further adjusts the rotation speed of the motor, so that the rotation speed of the motor is adapted to the heating level of the device.

[0021] 6. The magnitudes of the temperature rise ΔT1, temperature rise ΔT2, the first time interval Δt1, and the second time interval Δt2 are reasonably set, so as to prevent the control module from making a judgment error when the heating temperature has normal fluctuations, and to prevent the control module from still not processing promptly when the heating temperature has relatively large fluctuations, thereby ensuring the accuracy of judgment and the stability of the device.

[0022] 7. The temperature drop ΔT3 and the third time interval Δt3 are set reasonably, so that the temperature detection element can produce a reasonable temperature drop within a reasonable time interval, thereby ensuring the accuracy of the control module in determining whether the temperature abnormality has been eliminated. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is an overall schematic diagram of a hot air heating device in the first embodiment. [Diagram 2] FIG. 2 is an exploded view of the hot air component in the first embodiment. [Diagram 3] FIG. 3 is a schematic diagram showing the layout of some hot air components and temperature detection elements in the first embodiment. [Figure 4] FIG. 4 is a schematic diagram of the power supply connection in the first embodiment. [Diagram 5] FIG. 5 is a flowchart of a temperature abnormality processing method in the first embodiment. [Figure 6] FIG. 6 is a schematic diagram of temperature changes in the temperature detection element under normal conditions in the first embodiment. [Figure 7] FIG. 7 is a schematic diagram of a temperature change in the temperature detection element in a temperature abnormality situation in the first embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] The present invention will be further described below in combination with drawings and specific examples. It should be understood that the following terms and phrases of indicated orientation or positional relationship, such as "upper", "lower", "left", "right", "longitudinal", "lateral", "inner", "outer", "vertical", "horizontal", "top", "bottom", etc., are based on the orientation or positional relationship shown in the drawings only. They are merely for the convenience of describing and simplifying the present invention, and do not indicate or suggest that the devices / elements shown have a specific orientation or must be configured and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] Example 1 As shown in Figures 1 to 7, the method for processing an abnormal temperature in a hot air heating device provided by the first embodiment of the present invention is as follows: the hot air heating device includes a housing 100, a control module 200, a hot air component 300 provided in the housing 100, a power supply element 400 used for power supply, and a temperature detection element 500 used for detecting a heating temperature. The hot air component 300 includes a motor 310, a fan 320 driven by the motor 310, and a heater 330 that generates heat when energized, and the motor 310 rotates the fan 320, and sends the heat generated by the heater 330 from the housing 100 through the air outlet 340 to form a hot air flow used for heating an object. The power supply element 400, the motor 310, and the heater 330 are all controlled by the control module 200, and the signal of the temperature detection element 500 is connected to the control module 200.

[0026] The temperature anomaly treatment method includes the following steps. In step S100, when the temperature rise of the temperature detection element 500 within the first time interval Δt1 reaches ΔT1, the control module 200 determines that a temperature abnormality has occurred based on the temperature signal fed back from the temperature detection element 500, and executes step S200. Step S200: The control module 200 starts a countdown. When the temperature rise of the temperature detection element 500 within the second time interval Δt2 reaches ΔT2, the control module 200 determines that the temperature abnormality persists based on the temperature signal fed back by the temperature detection element 500, and executes step S300. In step S300, the control module 200 executes a protection program.

[0027] As shown in FIG. 1, the hot air heating device of this embodiment will be described by taking a heat gun as an example. The housing 100 forms a handle 110, and a button 120 for starting the device is provided on the front side of the handle 110, and a regulator 130 for adjusting the heating intensity is provided on the housing 100. As shown in FIG. 2, the hot air component 300 further includes a support 350, a connector 360, a support frame 370 and a sleeve 380, and the support 350 includes a support 351 and a support cover 352 fixed together. The fan 320 is rotatably mounted in a cavity formed by the surrounding of the support 351 and the support cover 352, and the fan 320 is mounted at the front end of the motor 310 through the support 350 and driven by the motor 310. The heater 330 adopts a heating wire, and the heating wire is wound around the support frame 370. The sleeve 380 is fitted onto the support frame 370, the rear end of which is fixed to the support 350 via a connector 360, and the air outlet 340 is provided at the front end of the sleeve 380. When the heat gun is operated, the heater 330 is energized to generate heat, and the motor 310 rotates the fan 320 to form an airflow that flows from the back to the front. The airflow, accompanied by the heat generated by the heater 330, is blown out of the air outlet 340, forming a hot airflow.

[0028] 3, the temperature detection element 500 is used to detect the temperature of the heater 330. In order to improve the detection accuracy, in this embodiment, the temperature detection element 500 is preferably disposed between the motor 310 and the heater 330, and the temperature detection element 500 is disposed as close as possible to the heater 330. Specifically, the temperature detection element 500 in this embodiment preferably adopts a thermistor, and the temperature detection element 500 can be disposed on the front side of the connector 360. Of course, the temperature detection element 500 can also adopt other electronic elements whose resistance value can change accordingly based on temperature.

[0029] As shown in Fig. 4, the power supply element 400 supplies power to the motor 310 and the heater 330 through the control module 200. In order to facilitate the adjustment of the hot air strength of the hot air heating device, a voltage dividing element 390 is connected in series with the power supply connection circuit of the motor 310. The voltage dividing element 390 can adjust the voltage supplied by the power supply element 400 to the motor 310, thereby adjusting the rotation speed at which the motor 310 rotates the fan 320. In this embodiment, the voltage dividing element 390 is preferably a variable resistor, and the voltage dividing element 390 is installed as close as possible to the temperature detection element 500. Of course, the voltage dividing element 390 can also adopt other structures capable of performing voltage division, such as a voltage dividing circuit.

[0030] In this embodiment, the protection program executed by the control module 200 preferably instructs the power supply element 400 to stop supplying power to the heater 330. In a situation where a temperature abnormality does indeed occur, this prevents the heater 330 from continuing to heat and causing overheating and damage to the device.

[0031] The temperature anomaly handling method in this embodiment further includes step S400. In step S400, when the temperature drop of the temperature detection element 500 within the third time interval Δt3 reaches ΔT3, based on the temperature signal fed back by the temperature detection element 500, the control module 200 determines that the temperature abnormality has been resolved and commands the power supply element 400 to supply power to the heater 330.

[0032] The temperature detection element 500 has a thermal equilibrium temperature value Tp, and in step S400, if the actual temperature value of the temperature detection element 500 exceeds the thermal equilibrium temperature value Tp, the control module 200 determines that the temperature abnormality persists based on the temperature signal fed back by the temperature detection element 500. The control module 200 obtains the actual temperature value of the temperature detection element 500 in real time and records the maximum actual temperature value Tmax. If the temperature decrease from the maximum actual temperature value Tmax of the temperature detection element 500 within the third time interval Δt3 reaches ΔT3, the control module 200 determines that the temperature abnormality has been resolved based on the temperature signal fed back by the temperature detection element 500.

[0033] 4, when the voltage supplied by the power supply element 400 to the heater 330 increases, the amount of heat generated by the heater 330 increases, and the temperature of the hot air flow increases. When the voltage supplied by the power supply element 400 to the heater 330 decreases, the amount of heat generated by the heater 330 decreases, and the temperature of the hot air flow decreases.

[0034] The temperature detection element 500 has a thermal equilibrium state, and when the temperature detection element 500 is in the thermal equilibrium state, the resistance value does not change, and at this time, the temperature of the temperature detection element 500 is the thermal equilibrium temperature value Tp. As shown in Fig. 6, when the device is in a normal operating state, the motor 310 rotates the fan 320, the heater 330 is energized to generate heat, and the temperature of the heater 330 gradually increases. As the temperature of the heater 330 increases, the temperature of the temperature detection element 500 slowly increases to the thermal equilibrium temperature value Tp and is maintained there.

[0035] As shown in FIG. 5 and FIG. 7, when the device encounters a situation in which the air outlet 340 is clogged and cannot discharge the hot air flow, or the motor 310 breaks down and cannot rotate the fan 320 to form the hot air flow, the temperature of the hot air component 300 rises, and the temperature of the temperature detection element 500 also rises from Ta to Tb within the first time interval Δt1. At this time, based on the temperature rise ΔT1 (ΔT1=Tb-Ta) of the temperature detection element 500, the control module 200 judges that the device has a temperature abnormality. In order to prevent misjudgment, the control module 200 starts a countdown, and during the countdown, the power supply element 400 continues to supply power to the heater 330. If the temperature abnormality is quickly resolved, the heat of the hot air component 300 is quickly discharged, the temperature of the heater 330 drops, and the temperature of the temperature detection element 500 drops accordingly, returning to the thermal equilibrium temperature value Tp. If the abnormal temperature situation is not resolved quickly, the amount of heat in the heater 330 still cannot be discharged, the temperature of the heater 330 rises, and the temperature of the temperature detection element 500 rises accordingly, rising from Tb to Tc within the second time interval Δt2. At this time, based on the temperature rise ΔT2 (ΔT2=Tc-Tb) of the temperature detection element 500, the control module 200 determines that the abnormal temperature situation of the device continues, and the control module 200 commands the power supply element 400 to stop supplying power to the heater 330, and the heater 330 stops heating.

[0036] If the temperature abnormality situation continues even after the heater 330 stops heating, the heat generated by the voltage dividing element 390 raises the temperature of the temperature detecting element 500 to the thermal equilibrium temperature value Tp. In this process, if the actual temperature value of the temperature detecting element 500 exceeds the thermal equilibrium temperature value Tp, the control module 200 determines that the temperature abnormality continues based on the temperature signal fed back by the temperature detecting element 500. The control module 200 obtains the actual temperature value of the temperature detecting element 500 in real time and records the maximum actual temperature value Tmax. If the temperature decrease from the maximum actual temperature value Tmax of the temperature detecting element 500 within the third time interval Δt3 reaches ΔT3 (ΔT3=Td-Te), the control module 200 determines that the temperature abnormality has been resolved based on the temperature signal fed back by the temperature detecting element 500, and the control module 200 commands the power supply element 400 to supply power to the heater 330.

[0037] In this embodiment, ΔT1 (ΔT1=Tb-Ta) is 2° C. to 5° C., and Δt1 is 2 seconds to 4 seconds. Specifically, ΔT1 is set to 3° C., and Δt1 is set to 3 seconds.

[0038] In this embodiment, ΔT2 (ΔT2=Tc-Tb) is 2° C. to 5° C., and Δt2 is 2 seconds to 4 seconds. Specifically, ΔT2 is set to 3° C., and Δt2 is set to 3 seconds.

[0039] In this embodiment, ΔT3 (ΔT3=Td-Te) is 3° C. to 6° C., and Δt3 is 1 second to 3 seconds. Specifically, ΔT3 is 5° C., and Δt3 is 2 seconds.

[0040] Assuming that the thermal equilibrium temperature value Tp of the temperature detection element 500 is 80°C, when the temperature of the temperature detection element 500 rises from 80°C (Ta) to 83°C (Tb) or above 83°C within 3 seconds (Δt1), the control module 200 determines that an abnormal temperature situation has occurred in the device based on the temperature signal of the temperature detection element 500. If the control module 200 starts a countdown of 3 seconds (Δt2) and the temperature of the temperature detection element 500 continues to rise from 83°C (Tb) to 86°C (Tc) or above 86°C within 3 seconds (Δt2), the control module 200 determines that an abnormal temperature situation has indeed occurred in the device, and the control module 200 commands the power supply element 400 to stop supplying power to the heater 330. In a situation where a temperature abnormality occurs, assuming that the maximum actual temperature value Tmax of the temperature detection element 500 is 90°C, when the temperature detection element 500 drops from 90°C (Tmax / Td) to 85°C (Te) or below 85°C within 2 seconds (Δt3), based on the temperature signal of the temperature detection element 500, the control module 200 determines that the temperature abnormality has been resolved, and the control module 200 can command the power supply element 400 to continue supplying power to the heater 330.

[0041] Of course, the thermal equilibrium temperature value Tp of the temperature detection element 500 can also be set to other reasonable values ​​such as 78°C, 79°C, 81°C, 82°C, 83°C, 84°C, 85°C, 86°C, and 87°C.

[0042] The temperature abnormality processing method provided in this embodiment can judge whether the device has a temperature abnormality based on the two dynamic temperature rise signals of the temperature detection element 500, and can greatly improve the accuracy of judgment. When the device has no temperature abnormality, the heater 330 can heat normally, and can ensure the heating efficiency and the operation effect of the device.

[0043] In this embodiment, the heat gun is provided with an indicator to indicate an abnormal temperature situation, which can be a flashing indicator light, a flashing temperature abnormality indicator on the display, or other reasonable methods such as audio.

[0044] Of course, the power supply element 400 of the hot air heating device can be powered by a battery or connected to a commercial power source. When the hot air heating device is powered by a battery, the battery can be removably attached to the bottom of the handle 110 by a battery holder.

[0045] Of course, Δt1 could be set to 2 seconds, 2.5 seconds, 3.5 seconds, 4 seconds, or any other reasonable length of time.

[0046] Of course, ΔT1 (ΔT1=Tb-Ta) can also be set to other reasonable values ​​such as 2°C, 2.5°C, 3.5°C, 4°C, 4.5°C, 5°C, etc.

[0047] Of course, Δt2 could be set to 2 seconds, 2.5 seconds, 3.5 seconds, 4 seconds, or any other reasonable length of time.

[0048] Of course, ΔT2 (ΔT2=Tc-Tb) can also be set to any other reasonable value, such as 2°C, 2.5°C, 3.5°C, 4°C, 4.5°C, 5°C, etc.

[0049] Of course, Δt3 could be set to 1 second, 1.2 seconds, 1.5 seconds, 1.7 seconds, 2.1 seconds, 2.3 seconds, 2.5 seconds, 2.7 seconds, 3 seconds, or any other reasonable length of time.

[0050] Of course, ΔT3 (ΔT3=Td-Te) can also be set to any other reasonable value, such as 3°C, 3.5°C, 4°C, 4.5°C, 5.5°C, 6°C, etc.

[0051] Of course, the hot air heating device may be other devices used to output a hot air flow, such as a dryer, etc. Correspondingly, the specific structure of the hot air component 300 is not limited to those described above and shown in the figures, and can be determined based on the specific type of the device.

[0052] Of course, to prevent hidden dangers in installation due to overheating of the device, a fuse can be connected in series with the power connection circuit of the heater 330. When the temperature of the heater 330 reaches a preset safe heating value, the fuse will blow and cut off the power connection circuit of the heater 330.

[0053] In addition to the above preferred embodiments, the present invention also has other implementations. Those skilled in the art can make various modifications and variations based on the present invention, and all such modifications and variations should fall within the scope of the claims of the present invention without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0054] 100 Case 110 Handle 120 Buttons 130 Regulator 200 Control Module 300 Hot Air Components 310 Motor 320 Fan 330 Heater 340 Ventilator 350 Supports 351 Support 352 Support cover 360 Connector 370 Support Frame 380 Sleeve 390 Voltage divider element 400 Power Supply Elements 500 Temperature detection element

Claims

1. A method for processing an abnormal temperature used in a hot air heating device, the hot air heating device including a housing, a control module, a hot air component provided in the housing, a power supply element used for supplying power, and a temperature detection element used for detecting a heating temperature, the hot air component including a motor, a fan driven by the motor, and a heater that generates heat when energized, the motor rotates the fan, the heat generated by the heater is sent from the housing through an air outlet, and a hot air flow used for heating an object is formed, the power supply element, the motor, and the heater are all controlled by the control module, and a signal from the temperature detection element is connected to the control module, the method comprising the steps of: Step S100: when the temperature rise of the temperature detection element in the first time interval Δt1 reaches ΔT1, the control module determines that a temperature abnormality occurs based on the temperature signal fed back by the temperature detection element, and executes step S200; Step S200: the control module starts a countdown. When the temperature rise of the temperature detection element in the second time interval Δt2 reaches ΔT2, the control module determines that the temperature abnormality persists based on the temperature signal fed back by the temperature detection element, and executes step S300; A method for treating an abnormal temperature in a hot air heating device, comprising: step S300, the control module executing a protection program.

2. 2. The method of claim 1, wherein the protection program executed by the control module instructs the power supply element to stop supplying power to the heater.

3. The method further includes step S400, Step S400: when the temperature drop of the temperature detection element within the third time interval Δt3 reaches ΔT3, the control module determines that the temperature abnormality has been eliminated based on the temperature signal fed back by the temperature detection element, and commands the power supply element to supply power to the heater.

4. 4. The temperature abnormality processing method according to claim 3, wherein the temperature detection element has a thermal equilibrium temperature value Tp, and in step S400, if the actual temperature value of the temperature detection element exceeds the thermal equilibrium temperature value Tp, the control module determines that the temperature abnormality persists based on the temperature signal fed back by the temperature detection element, the control module obtains the actual temperature value of the temperature detection element in real time and records a maximum actual temperature value Tmax, and if a temperature decrease from the maximum actual temperature value Tmax of the temperature detection element within a third time interval Δt3 reaches ΔT3, the control module determines that the temperature abnormality has been resolved based on the temperature signal fed back by the temperature detection element.

5. 2. The method for processing a temperature anomaly according to claim 1, wherein the temperature detection element is used to detect the temperature of the heater.

6. 6. The method for processing a temperature anomaly according to claim 5, wherein the temperature detection element is provided between the motor and the heater.

7. 2. The method for processing an abnormal temperature as claimed in claim 1, further comprising the step of connecting a voltage dividing element in series to a power supply connection circuit of said motor.

8. 2. The method for treating a temperature anomaly according to claim 1, wherein ΔT1 is between 2° C. and 5° C.; and / or the first time interval Δt1 is between 2 seconds and 4 seconds.

9. 2. The method for processing a temperature anomaly according to claim 1, wherein ΔT2 is between 2° C. and 5° C.; and / or the second time interval Δt2 is between 2 seconds and 4 seconds.

10. 4. The method for processing a temperature anomaly according to claim 3, wherein ΔT3 is between 3° C. and 6° C.; and / or the third time interval Δt3 is between 1 second and 3 seconds.

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