Multi-layer safety protection method and apparatus for clothes dryer, and clothes dryer and storage medium

Abstract

A multi-layer safety protection method for a clothes dryer, a multi-layer safety protection apparatus for a clothes dryer, and a clothes dryer and a storage medium, which relate to the technical field of smart home appliances. The multi-layer safety protection method for a clothes dryer comprises: when it is detected that a clothes dryer is turned on and operates normally, continuously acquiring an air inlet temperature of the clothes dryer within a first preset time at a preset time interval; on the basis of the air inlet temperature, determining whether there is an anomaly in terms of the air intake of the clothes dryer; and if there is no anomaly in terms of the air intake of the clothes dryer, continuously acquiring the air outlet temperature of an air outlet of the clothes dryer, and on the basis of the air outlet temperature, determining the current state of the clothes dryer. By means of the method, the determination of whether a clothes dryer has dried clothes and whether there are safety hazards is more accurate, thereby improving the usage safety of the clothes dryer, and improving the usage experience of a user.

Description

Multi-layer safety protection method and device for clothes dryer, clothes dryer and storage medium This application claims priority to the Chinese patent application filed with the China Patent Office on January 2, 2024, with application number 2024100037635 and application name "Dryer Multi-layer Safety Protection Method, Device, Dryer and Storage Medium", the entire contents of which are incorporated by reference into this application. Technical Field

[0001] The present application belongs to the technical field of smart home appliances, and specifically relates to a multi-layer safety protection method and device for a clothes dryer, a clothes dryer, and a storage medium. Background Art

[0002] Currently, in order to ensure the drying effect of clothes and prevent safety accidents, dryers usually use temperature sensors and thermostats as protection devices for the dryer and the load.

[0003] However, these methods typically use the air inlet or outlet temperature as a basis for judgment, failing to fully capture the internal temperature of the dryer during operation, making the judgment inaccurate. If the judgment is made too early, the clothes may not be dried properly, while if it is made too late, the clothes may be over-dried or damaged, or even cause a fire. Summary of the Invention

[0004] In order to solve the above-mentioned problems in the prior art, the present application provides a multi-layer safety protection method and device for a clothes dryer, a clothes dryer and a storage medium.

[0005] In a first aspect, the present application provides a multi-layer safety protection method for a clothes dryer, the method comprising:

[0006] When it is detected that the clothes dryer is turned on and operating normally, the air inlet temperature of the clothes dryer within a first preset time period is continuously obtained at preset time intervals;

[0007] determining whether there is an abnormality in the air intake of the clothes dryer according to the air inlet temperature;

[0008] If there is no abnormality in the air intake of the dryer, the outlet temperature of the dryer outlet is continuously obtained, and the current state of the dryer is determined according to the outlet temperature, wherein the current state includes drying completion or air outlet abnormality.

[0009] In a possible implementation, determining whether there is an abnormality in the air intake of the clothes dryer based on the air inlet temperature includes:

[0010] If the air inlet temperature is greater than the first temperature and less than or equal to the second temperature, it is determined that there is no abnormality in the air intake of the clothes dryer;

[0011] If the air inlet temperature is less than or equal to the first temperature, determining that the air inlet to the clothes dryer is abnormal, and sending a first warning message, wherein the first warning message is used to indicate that the air inlet temperature to the clothes dryer is too low;

[0012] If the air inlet temperature is greater than the second temperature and less than the third temperature, controlling the clothes dryer to perform a cooling operation;

[0013] If the air inlet temperature is greater than or equal to the third temperature, the clothes dryer is controlled to send a second warning message, wherein the second warning message is used to indicate that the air inlet temperature of the clothes dryer is too high.

[0014] In a possible implementation, controlling the clothes dryer to perform a cooling operation includes:

[0015] Controlling the clothes dryer to shut down and cool down, and continuously acquiring a new air inlet temperature and a flameout cooling time, and when the new air inlet temperature reaches a first preset temperature and the flameout cooling time reaches a second preset time, controlling the clothes dryer to restart;

[0016] The controlling the clothes dryer to send the second warning information includes:

[0017] The clothes dryer is controlled to be turned off and cooled, and the second warning message is sent to prompt the user to check the clothes dryer.

[0018] In a possible implementation, determining the current state of the clothes dryer according to the air outlet temperature includes:

[0019] When the air outlet temperature is greater than or equal to a second preset temperature and less than a third preset temperature, obtaining the current air outlet humidity, and when the current air outlet humidity is greater than or equal to the preset humidity, determining that the current state of the dryer is drying completed;

[0020] When the air outlet temperature is greater than or equal to the third preset temperature, it is determined that the current state of the dryer is abnormal air outlet, and the dryer is controlled to be turned off and cooled.

[0021] In a possible implementation, after determining that the current state of the clothes dryer is drying completed, the method further includes:

[0022] Controlling the clothes dryer to continue running and obtaining a continuous drying time, and when the continuous drying time reaches a third preset time, controlling the clothes dryer to stop running and sending a clothes removal reminder;

[0023] Obtain the closing time of the barrel door of the dryer. When the closing time of the barrel door reaches a fourth preset time, control the inner barrel of the dryer to rotate a preset number of times, wherein the closing time of the barrel door is calculated from the time when the dryer stops running.

[0024] In a possible implementation, detecting that the clothes dryer is turned on and operating normally includes:

[0025] When detecting that the clothes dryer is turned on, determining whether the wind pressure switch is closed;

[0026] If the wind pressure switch is closed, the clothes dryer is controlled to ignite and run, and an ignition result is obtained.

[0027] If the wind pressure switch is off, the clothes dryer is controlled to send a third warning message, wherein the third warning message is used to indicate that the wind pressure of the clothes dryer is abnormal.

[0028] In a possible implementation, after obtaining the ignition result, the method further includes:

[0029] If the clothes dryer fails to ignite, controlling the clothes dryer to repeat the ignition operation until the clothes dryer is successfully ignited;

[0030] Or if the number of ignition times of the clothes dryer is greater than a number threshold, the clothes dryer is controlled to send a fourth warning message.

[0031] In a second aspect, the present application provides a multi-layer safety protection control device for a clothes dryer, comprising: an acquisition module, an air inlet abnormality determination module, and an air outlet abnormality determination module, wherein:

[0032] The acquisition module is configured to continuously acquire the air inlet temperature of the dryer within a first preset time period at preset time intervals when detecting that the dryer is turned on and operating normally;

[0033] The air intake abnormality determination module is used to determine whether there is an abnormality in the air intake of the clothes dryer based on the air inlet temperature;

[0034] The air outlet abnormality determination module is used to continuously obtain the air outlet temperature of the dryer air outlet if there is no abnormality in the air intake of the dryer, and determine the current state of the dryer according to the air outlet temperature, wherein the current state includes drying completion or air outlet abnormality.

[0035] In a possible implementation manner, the air intake abnormality determination module is further configured to:

[0036] If the air inlet temperature is greater than the first temperature and less than or equal to the second temperature, it is determined that there is no abnormality in the air intake of the clothes dryer;

[0037] If the air inlet temperature is less than or equal to the first temperature, determining that the air inlet to the clothes dryer is abnormal, and sending a first warning message, wherein the first warning message is used to indicate that the air inlet temperature to the clothes dryer is too low;

[0038] If the air inlet temperature is greater than the second temperature and less than the third temperature, controlling the clothes dryer to perform a cooling operation;

[0039] If the air inlet temperature is greater than or equal to the third temperature, the clothes dryer is controlled to send a second warning message, wherein the second warning message is used to indicate that the air inlet temperature of the clothes dryer is too high.

[0040] In a possible implementation manner, the air intake abnormality determination module is further configured to:

[0041] Controlling the clothes dryer to shut down and cool down, and continuously acquiring a new air inlet temperature and a flameout cooling time, and when the new air inlet temperature reaches a first preset temperature and the flameout cooling time reaches a second preset time, controlling the clothes dryer to restart;

[0042] The controlling the clothes dryer to send the second warning information includes:

[0043] The clothes dryer is controlled to be turned off and cooled, and the second warning message is sent to prompt the user to check the clothes dryer.

[0044] In a possible implementation manner, the air outlet abnormality determination module is further configured to:

[0045] When the air outlet temperature is greater than or equal to a second preset temperature and less than a third preset temperature, obtaining the current air outlet humidity, and when the current air outlet humidity is greater than or equal to the preset humidity, determining that the current state of the dryer is drying completed;

[0046] When the air outlet temperature is greater than or equal to the third preset temperature, it is determined that the current state of the dryer is abnormal air outlet, and the dryer is controlled to be turned off and cooled.

[0047] In a possible implementation manner, the air outlet abnormality determination module is further configured to:

[0048] Controlling the clothes dryer to continue running and obtaining a continuous drying time, and when the continuous drying time reaches a third preset time, controlling the clothes dryer to stop running and sending a clothes removal reminder;

[0049] Obtain the closing time of the barrel door of the dryer. When the closing time of the barrel door reaches a fourth preset time, control the inner barrel of the dryer to rotate a preset number of times, wherein the closing time of the barrel door is calculated from the time when the dryer stops running.

[0050] In a possible implementation, the acquisition module is further configured to:

[0051] When detecting that the clothes dryer is turned on, determining whether the wind pressure switch is closed;

[0052] If the wind pressure switch is closed, the clothes dryer is controlled to ignite and run, and an ignition result is obtained.

[0053] If the wind pressure switch is off, the clothes dryer is controlled to send a third warning message, wherein the third warning message is used to indicate that the wind pressure of the clothes dryer is abnormal.

[0054] In a possible implementation, the acquisition module is further configured to:

[0055] If the clothes dryer fails to ignite, controlling the clothes dryer to repeat the ignition operation until the clothes dryer is successfully ignited;

[0056] Or if the number of ignition times of the clothes dryer is greater than a number threshold, the clothes dryer is controlled to send a fourth warning message.

[0057] In a third aspect, the present application further provides a dryer, comprising: at least one processor and a memory, wherein:

[0058] The memory is used to store computer-executable instructions;

[0059] The at least one processor is used to execute the computer-executable instructions stored in the memory, so that the at least one processor executes the multi-layer safety protection method for the clothes dryer as described in any one of the first aspects.

[0060] In a fourth aspect, the present application further provides a computer storage medium, wherein the computer storage medium stores computer execution instructions, and when the computer execution instructions are executed by a processor, they are used to implement the multi-layer safety protection method for a clothes dryer as described in any one of the first aspects.

[0061] In a fifth aspect, the present application also provides a computer program product, including a computer program, which, when executed by a processor, can implement the steps of the multi-layer safety protection method for a clothes dryer as described in any of the above items.

[0062] This application provides a multi-layer safety protection method and device for a clothes dryer, as well as a clothes dryer and storage medium. When the clothes dryer is started and operating normally, the air inlet temperature is obtained and a first-level safety protection judgment is made based on the air inlet temperature. If the air inlet is determined to be normal, the air outlet temperature is further obtained and a second-level safety protection judgment is made based on the air outlet temperature. This method makes it more accurate to determine whether the clothes dryer is drying clothes and whether there are safety hazards, thereby improving the safety of the dryer and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0064] FIG1 is a flow chart of a multi-layer safety protection method for a clothes dryer provided in an embodiment of the present application;

[0065] FIG2 is a second flow chart of a multi-layer safety protection method for a clothes dryer provided in an embodiment of the present application;

[0066] FIG3 is a third flow chart of a multi-layer safety protection method for a clothes dryer provided in an embodiment of the present application;

[0067] FIG4 is a schematic structural diagram of a multi-layer safety protection control device for a clothes dryer provided in an embodiment of the present application;

[0068] FIG5 is a schematic structural diagram of a clothes dryer provided in an embodiment of the present application.

[0069] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0070] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0071] The terms "first," "second," "third," "fourth," and so on (if any) in the specification and claims of this application and the drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the application described herein can, for example, be implemented in an order other than those illustrated or described herein.

[0072] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0073] To ensure drying efficiency and prevent accidents, clothes dryers currently utilize temperature sensors and thermostats as protective devices for the dryer and the load. However, these methods typically rely on the air inlet or outlet temperature as a basis for judgment, failing to fully capture the dryer's internal temperature during operation, leading to inaccurate judgments. Detecting the temperature too early can lead to clothes not being dried properly, while detecting the temperature too late can cause overdrying or damage to the clothes, or even lead to fires.

[0074] This application provides a multi-layered safety protection method for a clothes dryer. When the clothes dryer is started and operating normally, the air inlet temperature is obtained and a first-level safety protection judgment is made based on the air inlet temperature. If the air inlet is determined to be normal, the air outlet temperature is further obtained and a second safety protection judgment is made based on the air outlet temperature. This method makes it more accurate to determine whether the clothes dryer is drying clothes and whether there are safety hazards, improving the safety of the dryer and enhancing the user experience.

[0075] Next, the technical solutions shown in this application are described in detail through specific embodiments. It should be noted that the following embodiments can exist independently or in combination with each other, and the same or similar contents will not be repeated in different embodiments.

[0076] FIG1 is a flow chart of a multi-layer safety protection method for a clothes dryer provided in an embodiment of the present application. As shown in FIG1 , the method includes:

[0077] S101 : When it is detected that the clothes dryer is turned on and operating normally, the air inlet temperature of the clothes dryer within a first preset time period is continuously obtained at preset time intervals.

[0078] In this step, when the dryer is operating normally, ventilation is smooth, keeping the air inlet and outlet temperatures within the appropriate range. However, if there is a blockage or too much laundry is being dried, this can affect the flow of hot air, causing the dryer's internal temperature to overheat, posing a safety hazard. Furthermore, if the air inlet temperature remains consistently low, this also poses a safety hazard. Therefore, it is necessary to monitor the dryer's air inlet temperature and use this information to make a first-level safety hazard assessment.

[0079] Specifically, when it is detected that the dryer is turned on and operating normally, the air inlet temperature of the dryer within a first preset time is continuously obtained at preset time intervals. The air inlet temperature is obtained by a temperature sensor installed at the air inlet of the dryer.

[0080] Furthermore, before determining that the dryer is operating normally, it is necessary to determine the pressure in the dryer's air duct. Specifically, when it is detected that the dryer is turned on, it is determined whether the air pressure switch is closed;

[0081] If the wind pressure switch is closed, the clothes dryer is controlled to ignite and run, and an ignition result is obtained.

[0082] If the wind pressure switch is off, the clothes dryer is controlled to send a third warning message, wherein the third warning message is used to indicate that the wind pressure of the clothes dryer is abnormal.

[0083] At the same time, when the air pressure switch is closed and the dryer is ignited and running, if the dryer fails to ignite successfully for multiple times, it means that there is an abnormal pressure in the air path at this time, and a warning message needs to be sent to the user. Specifically:

[0084] If the clothes dryer fails to ignite, controlling the clothes dryer to repeat the ignition operation until the clothes dryer is successfully ignited;

[0085] Or if the number of ignition times of the clothes dryer is greater than a number threshold, the clothes dryer is controlled to send a fourth warning message.

[0086] S102: Determine whether there is an abnormality in the air intake of the clothes dryer based on the air inlet temperature.

[0087] In this step, after the air inlet temperature is obtained by the temperature sensor, it is determined whether there is any abnormality in the air intake of the clothes dryer based on the air inlet temperature.

[0088] For example, if the air inlet temperature is too high, an alarm message needs to be sent to prevent the heated air from blowing out of the air outlet from burning clothes.

[0089] S103: If there is no abnormality in the air intake of the clothes dryer, continuously obtain the air outlet temperature of the air outlet of the clothes dryer, and determine the current state of the clothes dryer according to the air outlet temperature, wherein the current state includes drying completion or air outlet abnormality.

[0090] In this step, once the dryer's air intake is normal based on the air inlet temperature, the dryer begins drying the clothes at normal high temperatures. In addition to avoiding safety hazards, the dryer also needs to monitor and determine when the clothes are dried. To ensure accurate determination, this embodiment also installs a temperature sensor at the dryer's air outlet. The outlet temperature measured by the temperature sensor determines whether the dryer is drying clothes or if there is an outlet abnormality.

[0091] Specifically, after determining that the dryer's air inlet is normal based on the air inlet temperature, the temperature sensor continuously obtains the air outlet temperature. Based on the air outlet temperature, the current state of the dryer is determined, i.e., whether the dryer is currently drying or experiencing an abnormal air flow. This embodiment does not impose any limitations on how the current state of the dryer is determined based on the air outlet temperature.

[0092] In a possible implementation, if the air outlet temperature is too high, it indicates that the hot air inside the dryer is not flowing smoothly. Considering whether there is too much clothing causing blockage and thus affecting the hot air circulation of the dryer, the dryer is controlled to send a warning message.

[0093] This application provides a multi-layered safety protection method for a clothes dryer. When the clothes dryer is started and operating normally, the air inlet temperature is obtained and a first-level safety protection judgment is made based on the air inlet temperature. If the air inlet is determined to be normal, the air outlet temperature is further obtained and a second-level safety protection judgment is made based on the air outlet temperature. This method allows for more accurate judgment of whether the clothes dryer is drying and whether there are safety hazards, improving user safety and enhancing the user experience.

[0094] FIG2 is a second flow diagram of a multi-layer safety protection method for a clothes dryer provided in an embodiment of the present application. This embodiment of the present application provides a detailed description of the steps for determining whether there is an abnormality in the air intake of the clothes dryer based on the air inlet temperature. As shown in FIG2 , the method includes:

[0095] S201 : Continuously obtain the air inlet temperature of the clothes dryer within a first preset time period at preset time intervals.

[0096] In this step, considering that the clothes drying process takes a long time and safety hazards may occur during the entire drying process, it is necessary to intermittently obtain the air inlet temperature of the dryer for a period of time.

[0097] Specifically, when the dryer is detected to be turned on and operating normally, the air inlet temperature is intermittently obtained within a first preset time period at a preset time interval. The preset time interval and the first preset time are not limited in this embodiment and are determined based on the drying time corresponding to the drying program selected by the user. Both the preset time interval and the first preset time are proportional to the drying time.

[0098] S202: If the air inlet temperature is greater than the first temperature and less than or equal to the second temperature, it is determined that there is no abnormality in the air intake of the clothes dryer.

[0099] In this step, the temperature range consisting of the first temperature and the second temperature is the temperature of the air inlet of the dryer when the dryer is operating normally. The specific values ​​of the first temperature and the second temperature are determined according to actual conditions. For example, the second temperature can be 180-190°C.

[0100] Specifically, when the air inlet temperature of the dryer within the first preset time is obtained, if the air inlet temperature is within the temperature range formed by the first temperature and the second temperature, it is determined that there is no abnormality in the entry of the dryer at this time, and the second level of safety protection judgment can be further performed based on the air outlet temperature.

[0101] S203: If the air inlet temperature is less than or equal to the first temperature, determine that the air inlet of the clothes dryer is abnormal, and send a first warning message.

[0102] In this step, the first warning information is used to indicate that the air inlet temperature of the clothes dryer is too low.

[0103] When there are multiple consecutive air inlet temperatures less than or equal to the first temperature among the multiple air inlet temperatures obtained, it means that the current inlet temperature of the dryer is low. When several dryers are working normally, the inlet temperatures will be greater than the first temperature. Therefore, it is necessary to send a first warning message to inform the user that the current dryer inlet temperature is too low and the dryer ignition is abnormal, and the user needs to confirm whether the gas is normal.

[0104] S204: If the air inlet temperature is greater than the second temperature and less than the third temperature, control the clothes dryer to shut down and cool down, and continuously obtain a new air inlet temperature and shut-down cooling time.

[0105] In this step, if any of the multiple air inlet temperatures obtained are within the temperature range formed by the second and third temperatures, the dryer's air inlet temperature is relatively high. That is, the air being drawn in through the inlet is relatively hot. If the dryer continues to operate, the air flowing out of the outlet will be relatively hot, potentially damaging the clothes. However, this is unlikely, and the dryer can automatically adjust the temperature. Therefore, the dryer is directly controlled to automatically cool down.

[0106] Specifically, when the acquired air inlet temperature is greater than the second temperature but less than the third temperature, the dryer control board is fed back to control the dryer to close the gas valve, stop ignition, and cool the dryer with cold air drawn in through the air inlet. Simultaneously, the new air inlet temperature and the flameout cooling time are continuously acquired, and subsequent judgments are made based on the new air inlet temperature and the flameout cooling time.

[0107] S205: When the new air inlet temperature reaches a first preset temperature and the flameout cooling time reaches a second preset time, control the clothes dryer to ignite and run again.

[0108] In this step, considering that the dryer stops ignition at this time, the cold air from the air inlet will cause the temperature sensor of the air inlet to drop significantly. In order to prevent the air inlet temperature from quickly rising to above the second temperature after the dryer resumes heating, it is also necessary to comprehensively determine when to control the dryer to resume heating based on the flameout cooling time.

[0109] Specifically, when it is determined that the new air inlet temperature drops to the first preset temperature and the flameout cooling time reaches the second preset time, the clothes dryer is controlled to ignite and run again.

[0110] Furthermore, before controlling the dryer to resume ignition and operation, it is still necessary to obtain the status of the wind pressure switch again. When the wind pressure switch is still in the closed state, the dryer is controlled to ignite and run again; if the wind pressure switch is disconnected, the inner drum of the dryer is controlled to rotate forward and reverse alternately, and the status of the wind pressure switch is detected again. If it is still not disconnected, a third warning message is sent.

[0111] S206: If the air inlet temperature is greater than or equal to the third temperature, control the clothes dryer to be turned off and cooled, and send the second warning message to prompt the user to check the clothes dryer.

[0112] In this step, the second warning information is used to indicate that the air inlet temperature of the clothes dryer is too high. The third temperature is the limit temperature of the air inlet of the clothes dryer, that is, when the air inlet temperature of the clothes dryer is greater than or equal to the third temperature, the clothes dryer needs to be shut down immediately.

[0113] When there are a lot of clothes dried in the dryer, the air outlet of the dryer will be blocked, affecting the circulation of hot air from the dryer. If the drying time is long, the temperature of the air inlet of the dryer will rise too high, posing a serious safety hazard.

[0114] Therefore, when one or more of the multiple air inlet temperatures obtained are greater than the third temperature, it is determined that the dryer has a great safety hazard at this time, and the dryer is controlled to be shut down and cooled, and a second warning message is sent to remind the user to check the condition of the clothes in the dryer drum.

[0115] It should be noted that when the dryer is turned off because the air inlet temperature is greater than or equal to the third temperature, the dryer will not automatically restart. The user needs to manually start the dryer before the dryer can run again.

[0116] This application provides a multi-layered safety protection method for a clothes dryer. After obtaining the dryer's air inlet temperature, the method determines whether the air inlet temperature is within an appropriate range. Based on the determination result, the method determines whether there is an abnormality in the dryer's air inlet. This method makes the initial safety protection determination based on the dryer's air inlet temperature more accurate, thereby improving the safety of the dryer.

[0117] FIG3 is a flow chart of a multi-layer safety protection method for a clothes dryer provided in an embodiment of the present application. This embodiment of the present application provides a detailed description of the steps for determining the current state of the clothes dryer based on the air outlet temperature. As shown in FIG3 , the method includes:

[0118] S301: Continuously obtain the temperature of the dryer air outlet.

[0119] In this step, when it is determined that there is no abnormality in the air inlet of the dryer based on the air inlet temperature, the air outlet temperature of the dryer is further continuously obtained, and whether the dryer has completed drying is determined based on the obtained air outlet temperature, or the air outlet temperature is avoided to be too high, which may cause overdrying of the clothes, affect the quality of the clothes, or even damage the clothes.

[0120] S302. When the air outlet temperature is greater than or equal to a second preset temperature and less than a third preset temperature, obtain the current air outlet humidity, and when the current air outlet humidity is greater than or equal to the preset humidity, determine that the current state of the dryer is drying completed.

[0121] In this step, the second preset temperature and the third preset temperature are the temperature ranges of the air outlet when the clothes are almost dried. The second preset temperature and the third preset temperature are determined based on experience.

[0122] Specifically, after obtaining the air outlet temperature, when it is determined that the air outlet temperature is within the temperature range formed by the second preset temperature and the third preset temperature, it means that the clothes in the barrel are about to be dried, and the current air outlet humidity is obtained. The current state of the dryer is further judged based on the current air outlet humidity.

[0123] Furthermore, when it is determined that the current humidity of the air outlet is greater than or equal to the preset humidity, it means that the clothes are almost dried at this time, so the current state of the dryer is determined to be drying completed.

[0124] It should be noted that since most of the dryer drum is still filled with air, in order to prevent the clothes from being dampened by the humid air after the dryer stops drying immediately, after determining that the current state of the dryer is drying completed, the dryer is controlled to continue drying for a period of time. The specific operation is as follows:

[0125] The clothes dryer is controlled to continue running, and a continuous drying time is obtained. When the continuous drying time reaches a third preset time, the clothes dryer is controlled to stop running, and a clothes removal reminder is sent.

[0126] At the same time, considering that clothes may become wrinkled if the user does not take them out for a long time after drying, the door closing time after the dryer stops is obtained. Based on the door closing time, it is determined whether to control the dryer to perform anti-wrinkle operation. Specifically:

[0127] Obtain the closing time of the barrel door of the dryer. When the closing time of the barrel door reaches a fourth preset time, control the inner barrel of the dryer to rotate a preset number of times, wherein the closing time of the barrel door is calculated from the time when the dryer stops running.

[0128] S303: When the air outlet temperature is greater than or equal to the third preset temperature, determine that the current state of the clothes dryer is abnormal air outlet, and control the clothes dryer to be turned off and cooled.

[0129] In this step, when it is determined that the temperature of the air outlet is greater than or equal to the third preset temperature, it means that the temperature of the hot air blown out of the air outlet is too high and may damage the clothes.

[0130] Therefore, the dryer is controlled to be turned off and cooled so as to reduce the temperature of the hot air blown out of the dryer outlet. The specific operation has been described in detail in the above embodiments, so it will not be described in detail here.

[0131] It should be noted that the dryer is also equipped with an inlet thermostat and an outlet thermostat at the air outlet and air inlet. The inlet thermostat is a manual reset type and will only function when both the inlet temperature sensor and the air pressure switch fail. Once the alarm is triggered, it cannot be easily reset and requires professional maintenance personnel to troubleshoot and reset it to prevent excessively high inlet temperatures from burning clothing or damaging the dryer. The outlet thermostat is also a manual reset type and will only function when both the outlet temperature sensor and the outlet humidity sensor fail to function. This prevents excessively high outlet temperatures from burning clothing or damaging the dryer, and manual intervention is required to troubleshoot the problem.

[0132] This application provides a multi-layered safety protection method for a clothes dryer. This method determines whether the dryer has finished drying or has an abnormal air flow based on the dryer's air outlet temperature, and controls the dryer to perform corresponding operations based on the determination result. This method makes the secondary safety protection judgment based on the dryer's air outlet temperature more accurate, improving the safety of dryer use.

[0133] FIG4 is a schematic diagram of the structure of a multi-layer safety protection control device for a clothes dryer provided in an embodiment of the present application. As shown in the figure, the control device includes: an acquisition module 401, an air inlet abnormality determination module 402, and an air outlet abnormality determination module 403, wherein:

[0134] The acquisition module 401 is configured to continuously acquire the air inlet temperature of the dryer within a first preset time period at a preset time interval when it is detected that the dryer is turned on and operating normally;

[0135] The air intake abnormality determination module 402 is used to determine whether there is an abnormality in the air intake of the clothes dryer based on the air intake temperature;

[0136] The air outlet abnormality determination module 403 is used to continuously obtain the air outlet temperature of the dryer if there is no abnormality in the air inlet of the dryer, and determine the current state of the dryer according to the air outlet temperature, wherein the current state includes drying completion or air outlet abnormality.

[0137] In a possible implementation, the air intake abnormality determination module 402 is further configured to:

[0138] If the air inlet temperature is greater than the first temperature and less than or equal to the second temperature, it is determined that there is no abnormality in the air intake of the clothes dryer;

[0139] If the air inlet temperature is less than or equal to the first temperature, determining that the air inlet to the clothes dryer is abnormal, and sending a first warning message, wherein the first warning message is used to indicate that the air inlet temperature to the clothes dryer is too low;

[0140] If the air inlet temperature is greater than the second temperature and less than the third temperature, controlling the clothes dryer to perform a cooling operation;

[0141] If the air inlet temperature is greater than or equal to the third temperature, the clothes dryer is controlled to send a second warning message, wherein the second warning message is used to indicate that the air inlet temperature of the clothes dryer is too high.

[0142] In a possible implementation, the air intake abnormality determination module 402 is further configured to:

[0143] Controlling the clothes dryer to shut down and cool down, and continuously acquiring a new air inlet temperature and a flameout cooling time, and when the new air inlet temperature reaches a first preset temperature and the flameout cooling time reaches a second preset time, controlling the clothes dryer to restart;

[0144] The controlling the clothes dryer to send the second warning information includes:

[0145] The clothes dryer is controlled to be turned off and cooled, and the second warning message is sent to prompt the user to check the clothes dryer.

[0146] In a possible implementation, the air outlet abnormality determination module 403 is further configured to:

[0147] When the air outlet temperature is greater than or equal to a second preset temperature and less than a third preset temperature, obtaining the current air outlet humidity, and when the current air outlet humidity is greater than or equal to the preset humidity, determining that the current state of the dryer is drying completed;

[0148] When the air outlet temperature is greater than or equal to the third preset temperature, it is determined that the current state of the dryer is abnormal air outlet, and the dryer is controlled to be turned off and cooled.

[0149] In a possible implementation, the air outlet abnormality determination module 403 is further configured to:

[0150] Controlling the clothes dryer to continue running and obtaining a continuous drying time, and when the continuous drying time reaches a third preset time, controlling the clothes dryer to stop running and sending a clothes removal reminder;

[0151] Obtain the closing time of the barrel door of the dryer. When the closing time of the barrel door reaches a fourth preset time, control the inner barrel of the dryer to rotate a preset number of times, wherein the closing time of the barrel door is calculated from the time when the dryer stops running.

[0152] In a possible implementation, the acquisition module 401 is further configured to:

[0153] When detecting that the clothes dryer is turned on, determining whether the wind pressure switch is closed;

[0154] If the wind pressure switch is closed, the clothes dryer is controlled to ignite and run, and an ignition result is obtained.

[0155] If the wind pressure switch is off, the clothes dryer is controlled to send a third warning message, wherein the third warning message is used to indicate that the wind pressure of the clothes dryer is abnormal.

[0156] In a possible implementation, the acquisition module 401 is further configured to:

[0157] If the clothes dryer fails to ignite, controlling the clothes dryer to repeat the ignition operation until the clothes dryer is successfully ignited;

[0158] Or if the number of ignition times of the clothes dryer is greater than a number threshold, the clothes dryer is controlled to send a fourth warning message.

[0159] FIG5 is a schematic diagram of the structure of a clothes dryer provided in an embodiment of the present application. As shown in FIG5 , the clothes dryer 50 includes: at least one processor and a memory, wherein:

[0160] The memory is used to store computer-executable instructions;

[0161] The at least one processor is configured to execute the computer-executable instructions stored in the memory, so that the at least one processor executes the multi-layer safety protection method for a clothes dryer as described in any one of the aforementioned items.

[0162] Among them, at least one processor 501 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0163] Optionally, in a specific implementation, the processor 501 and the memory 502 are implemented independently. The processor 501 and the memory 502 can be connected to each other via a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be divided into address buses, data buses, control buses, etc., but this does not mean that there is only one bus or only one type of bus.

[0164] Optionally, in a specific implementation, if the processor 501 and the memory 502 are integrated on a chip, the processor 501 and the memory 502 can communicate through an internal interface.

[0165] The present application also provides a computer storage medium, in which computer execution instructions are stored. When a processor executes the computer execution instructions, the technical solution of the aforementioned multi-layer safety protection method for a clothes dryer is implemented.

[0166] An embodiment of the present application further provides a computer program product, which includes instructions. When the instructions are executed, the computer executes the technical solution in any of the aforementioned method embodiments.

[0167] The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The computer-readable storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0168] An exemplary readable storage medium is coupled to a processor, so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application-specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist as discrete components in the control device of the clothing processing device.

[0169] The division of units described above is merely a logical functional division. In actual implementation, other divisions may be employed. For example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not implemented. Furthermore, any coupling or direct coupling or communication connection shown or discussed between units may be an indirect coupling or communication connection via an interface, device, or unit, and may be electrical, mechanical, or other.

[0170] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0171] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0172] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0173] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0174] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the scope of protection of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-layer safety protection method for a dryer, characterized in that, The method includes: When it is detected that the dryer is turned on and operating normally, continuously obtain the inlet air temperature of the dryer within a first preset time at a preset time interval; Determine whether there is an abnormality in the inlet air of the dryer according to the inlet air temperature; If there is no abnormality in the inlet air of the dryer, continuously obtain the outlet air temperature of the dryer outlet, and determine the current state of the dryer according to the outlet air temperature, where the current state includes drying completion or abnormal air outlet.

2. The method according to claim 1, wherein The determining whether there is an abnormality in the inlet air of the dryer according to the inlet air temperature includes: If the inlet air temperature is greater than a first temperature and less than or equal to a second temperature, it is determined that there is no abnormality in the inlet air of the dryer; If the inlet air temperature is less than or equal to the first temperature, it is determined that there is an abnormality in the inlet air of the dryer, and a first warning message is sent, where the first warning message is used to indicate that the inlet air temperature of the dryer is too low; If the inlet air temperature is greater than the second temperature and less than a third temperature, control the dryer to perform a cooling operation; If the inlet air temperature is greater than or equal to the third temperature, control the dryer to send a second warning message, where the second warning message is used to indicate that the inlet air temperature of the dryer is too high.

3. The method according to claim 2, wherein The controlling the dryer to perform a cooling operation includes: Control the dryer to turn off the fire and cool down, and continuously obtain the new inlet air temperature and the fire-off cooling time. When the new inlet air temperature reaches the first preset temperature and the fire-off cooling time reaches the second preset time, control the dryer to ignite and run again; The controlling the dryer to send a second warning message includes: Control the dryer to turn off the fire and cool down, and send the second warning message to prompt the user to check the dryer.

4. The method according to claim 3, characterized in that, The determining the current state of the dryer according to the outlet air temperature includes: When the outlet air temperature is greater than or equal to a second preset temperature and less than a third preset temperature, obtain the current outlet air humidity, and when the current outlet air humidity is greater than or equal to the preset humidity, determine that the current state of the dryer is drying completion; When the outlet air temperature is greater than or equal to the third preset temperature, determine that the current state of the dryer is abnormal air outlet, and control the dryer to turn off the fire and cool down.

5. The method according to claim 4, wherein After determining that the current state of the dryer is drying completion, the method further includes: Control the dryer to continue running, and obtain the continuous drying time. When the continuous drying time reaches the third preset time, control the dryer to stop running and send a clothes-taking reminder; Obtain the door closing time of the dryer drum. When the door closing time reaches the fourth preset time, control the inner drum of the dryer to rotate a preset number of turns, where the door closing time is calculated starting from when the dryer stops running.

6. The method according to any one of claims 1-5, characterized in that, The detecting that the dryer is turned on and operating normally includes: When it is detected that the dryer is turned on, determine whether the air pressure switch is closed; If the air pressure switch is closed, control the dryer to ignite and run, and obtain the ignition result; If the air pressure switch is turned off, control the dryer to send a third warning message, where the third warning message is used to indicate that the air pressure of the dryer is abnormal.

7. The method according to claim 6, characterized in that, After obtaining the ignition result, the method further includes: If the ignition of the dryer fails, control the dryer to repeat the ignition operation until the ignition of the dryer is successful; Or if the number of ignition attempts of the dryer is greater than the number threshold, control the dryer to send a fourth warning message.

8. A multi-layer safety protection control device for a dryer, characterized in that, It includes: An acquisition module, an inlet air abnormality determination module, and an outlet air abnormality determination module, where: The acquisition module is configured to continuously acquire the temperature of the air inlet of the dryer within a first preset time at a preset time interval when it is detected that the dryer is turned on and operating normally. The inlet air abnormality determination module is configured to determine whether there is an abnormality in the inlet air of the dryer according to the temperature of the air inlet. The outlet air abnormality determination module is configured to continuously acquire the temperature of the air outlet of the dryer if there is no abnormality in the inlet air of the dryer, and determine the current state of the dryer according to the temperature of the air outlet, where the current state includes drying completion or abnormal air outlet.

9. A dryer, characterized in that, It includes: At least one processor and a memory, where: The memory is used to store computer execution instructions; The at least one processor is configured to execute the computer execution instructions stored in the memory, so that the at least one processor executes the method according to any one of claims 1 to 7.

10. A computer storage medium, characterized in that, Computer execution instructions are stored in the computer storage medium, and when the computer execution instructions are executed by a processor, they are used to implement the method according to any one of claims 1 to 7.

11. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the method according to any one of claims 1 to 7.

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