Method and device for detecting temperature of drying machine drum, and drying machine

Abstract

This invention discloses a method, device, and dryer for detecting the temperature of the inlet drum of a dryer. By placing a temperature sensor or thermostat near the heater in the inlet duct, the warm air temperature can be detected in a timely and accurate manner. Combined with the method of opening an air distribution port on the side of the temperature sensor or thermostat, the negative pressure generated in the inlet duct draws relatively cool air into the inlet duct, thereby cooling the surface of the temperature sensor or thermostat. The accuracy of the actual detection value is ensured by consulting a table of correspondence between the detected value and the warm air temperature. This invention solves the technical problem in the prior art where the temperature sensor or thermostat is moved away from the heater due to the high temperature, resulting in untimely and inaccurate temperature detection.

Description

Technical Field

[0001] This invention belongs to the field of clothing drying technology, specifically, it relates to a method, device and dryer for detecting the temperature of the inlet drum of a dryer. Background Technology

[0002] Existing dryers are generally divided into two categories: vented and condenser dryers. In vented dryers, air is heated by a heater to generate warm air, which is then blown into the drum through the inlet duct. The warm air then comes into contact with the clothes before entering the exhaust pipe. During its passage through the clothes, the warm air heats and dries them while carrying away moisture. In condenser dryers, the internal air circulates within the drum and ductwork. First, clothes to be dried are placed in the drum. The heater then supplies warm air into the drum, which comes into contact with the clothes to dry them. The resulting hot and humid air first passes through a lint filter to remove lint, then passes through a turbine fan into the ductwork and is introduced into the condenser for steam condensation and cooling. This results in cool, low-humidity air that enters the rear ductwork of the machine, is reheated by the heater, and then enters the drum through the inlet.

[0003] During the drying process, the dryer needs to detect the temperature of the warm air entering the drum. Based on the detected temperature, the dryer's working status is determined, and it can promptly detect whether the warm air temperature is insufficient or too high, so that the dryer can make timely adjustments, such as increasing the heating temperature when it is insufficient, or stopping heating in time when the temperature is too high.

[0004] The inlet temperature of existing dryers is usually controlled by a thermostat or temperature sensor installed on the inlet air duct; such as Figure 1 As shown, the thermostat or temperature sensor 1 is usually installed at a position slightly above the inlet air duct 2. It controls the temperature entering the drum by detecting the actual temperature of the air inlet, thereby controlling the inlet temperature to not exceed the deformation or damage temperature of the corresponding clothing material.

[0005] Depend on Figure 1It is evident that the installation location of existing temperature sensors or thermostats is limited by the operating temperature range of the devices, necessitating their placement far from the heater. This arrangement often results in the air remaining in the heater for an extended period when the dryer is operating at full load or when the airflow is obstructed, causing the temperature to rise rapidly. Because the temperature sensor or thermostat is located too far from the heater, it cannot detect the high temperature promptly enough. This leads to the heater continuing to heat the air, causing the warm air entering the drum to reach excessively high temperatures, damaging the clothes, or causing the mechanical thermostat to trip abnormally, forcing the user to request after-sales repair. This is because dryer designs often employ two or more levels of temperature protection control for the drum temperature. The temperature sensor or thermostat is the first level of electronic control, which, combined with software control, stops heating promptly when a problem is detected. The second level and above are mechanical controls, which may be resettable or non-resettable. When a non-resettable mechanical thermostat is used, if the electronic control is delayed in its judgment due to untimely detection, it can cause the mechanical thermostat to trip. When a non-resettable mechanical thermostat trips, the user can only resolve the issue by applying for after-sales repair, which obviously reduces the user experience and affects product quality. Summary of the Invention

[0006] The purpose of this invention is to provide a method, device, and dryer for detecting the temperature of the inlet drum of a dryer. By placing a temperature sensor or thermostat near the heater in the inlet duct, the warm air temperature can be detected in a timely and accurate manner. Combined with the method of opening an air distribution port on the side of the temperature sensor or thermostat, the negative pressure generated in the inlet duct draws relatively cool air into the inlet duct, cooling the surface of the temperature sensor or thermostat. The accuracy of the actual detection value is ensured by consulting a table of correspondence between the detected value and the warm air temperature. This invention solves the technical problem in the prior art where the temperature sensor or thermostat is moved away from the heater due to the high temperature, resulting in untimely and inaccurate temperature detection.

[0007] The present invention is implemented using the following technical solutions:

[0008] A method for detecting the inlet temperature of a clothes dryer is proposed, wherein the clothes dryer includes:

[0009] heater;

[0010] The inlet air duct includes a warm air inlet and an inner cylinder inlet; the warm air generated after being heated by the heater enters the inlet air duct through the warm air inlet; the inlet air duct is connected to the inner cylinder through the inner cylinder inlet, and the warm air enters the inner cylinder from the inner cylinder inlet through the inlet air duct.

[0011] The clothes dryer also includes:

[0012] A temperature sensor is installed on the air inlet duct and is located within the set range of the warm air inlet.

[0013] An air outlet is provided on the inlet duct and located on the side of the temperature sensor;

[0014] The method includes:

[0015] Obtain the detection value of the temperature sensor;

[0016] Query the table showing the correspondence between the detected value and the heating air temperature to obtain the actual heating air temperature entering the cylinder.

[0017] Furthermore, the table relating the detected values ​​to the warm air temperature is obtained and stored in the dryer according to the following steps: simulating several sets of exhaust resistance at a set heating temperature; starting the drying process under the simulated exhaust resistance; obtaining the actual temperature value of the warm air in the inlet duct and the detected value of the temperature sensor; recording the detected values ​​and the actual temperature value of the warm air to form a table relating the detected values ​​to the warm air temperature under different exhaust resistances at the set heating temperature.

[0018] Furthermore, the method also includes: determining the heating temperature; detecting the exhaust resistance; and based on the heating temperature and the exhaust resistance, querying the correspondence between the detected values ​​at the heating temperature and the exhaust resistance and the warm air temperature to obtain the actual warm air temperature entering the cylinder.

[0019] A device for detecting the temperature of the dryer drum inlet is proposed, comprising:

[0020] heater;

[0021] The inlet air duct includes a warm air inlet and an inner cylinder inlet; the warm air generated after being heated by the heater enters the inlet air duct through the warm air inlet; the inlet air duct is connected to the inner cylinder through the inner cylinder inlet, and the warm air enters the inner cylinder from the inner cylinder inlet through the inlet air duct.

[0022] Also includes:

[0023] A temperature sensor is installed on the air inlet duct and is located within the set range of the warm air inlet.

[0024] An air outlet is provided on the inlet duct and located on the side of the temperature sensor;

[0025] The warm air temperature determination module is used to obtain the detection value of the temperature sensor, query the correspondence table between the detection value and the warm air temperature, and obtain the actual warm air temperature entering the cylinder.

[0026] Furthermore, the device also includes: a storage module for storing a table showing the correspondence between the detected values ​​and the warm air temperature; wherein the table showing the correspondence between the detected values ​​and the warm air temperature is obtained according to the following steps: simulating several sets of exhaust resistance at a set heating temperature; starting the drying process under the simulated exhaust resistance; obtaining the actual temperature value of the warm air in the inlet duct and the detected value of the temperature sensor; recording the detected values ​​and the actual temperature value of the warm air to form a table showing the correspondence between the detected values ​​and the warm air temperature under different exhaust resistances at the set heating temperature.

[0027] Furthermore, the device also includes a query preparation module for determining the heating temperature and detecting the exhaust resistance, so that the warm air temperature determination module queries the correspondence between the detected value under the heating temperature and the exhaust resistance and the warm air temperature based on the heating temperature and the exhaust resistance, and obtains the actual warm air temperature entering the cylinder.

[0028] A device for detecting the temperature of the dryer drum inlet is proposed, comprising:

[0029] heater;

[0030] A drying controller controls the heating temperature of the heater and controls the heater to turn on and off.

[0031] The inlet air duct includes a warm air inlet and an inner cylinder inlet; the warm air generated after being heated by the heater enters the inlet air duct through the warm air inlet; the inlet air duct is connected to the inner cylinder through the inner cylinder inlet, and the warm air enters the inner cylinder from the inner cylinder inlet through the inlet air duct.

[0032] Also includes:

[0033] A thermostat is installed on the air inlet duct and located within the set range of the warm air inlet; it is configured to send a signal to the drying controller when the detected temperature exceeds the temperature limit, so that the drying controller controls the heater to stop heating.

[0034] An air outlet is provided on the air inlet duct and located on the side of the thermostat;

[0035] The heating air temperature determination module is used to obtain the detection value of the thermostat, query the correspondence table between the detection value and the heating air temperature, and obtain the actual heating air temperature entering the cylinder.

[0036] Furthermore, the device also includes: a storage module for storing a table showing the correspondence between the detected values ​​and the warm air temperature; wherein the table showing the correspondence between the detected values ​​and the warm air temperature is obtained according to the following steps: simulating several sets of exhaust resistance at a set heating temperature; starting the drying process under the simulated exhaust resistance; obtaining the actual temperature value of the warm air in the inlet duct and the detected value of the thermostat; recording the detected values ​​and the actual temperature value of the warm air to form a table showing the correspondence between the detected values ​​and the warm air temperature under different exhaust resistances at a set heating temperature.

[0037] Furthermore, the device also includes a query preparation module for determining the heating temperature and detecting the exhaust resistance, so that the warm air temperature determination module queries the correspondence between the detected value under the heating temperature and the exhaust resistance and the warm air temperature based on the heating temperature and the exhaust resistance, and obtains the actual warm air temperature entering the cylinder.

[0038] A clothes dryer is proposed, including the clothes dryer inlet temperature detection device as described above.

[0039] Compared with existing technologies, the advantages and positive effects of this invention are as follows: In the dryer drum temperature detection method, device, and dryer proposed in this invention, compared to existing technologies where the temperature sensor or thermostat is placed at the top of the drum duct away from the heater, this invention installs the temperature sensor or thermostat within a set range of the warm air inlet of the drum duct, close to the heater. When the warm air generated after being heated by the heater enters the drum duct from the warm air inlet, it can be immediately detected by the temperature sensor or thermostat. This allows for timely control of the heater to stop heating, preventing the heater from continuing to heat the air and causing the temperature of the warm air entering the drum to become too high, damaging the clothes. It also avoids abnormal tripping of mechanical thermostats. Furthermore, because the temperature sensor or thermostat is close to the heater, it may operate at high temperatures for extended periods, leading to excessive operating temperatures and reduced service life. This invention addresses this problem... This invention solves the problem by creating an air distribution port on the inlet duct next to the temperature sensor or thermostat. When the heated air enters the inlet duct, the flowing warm air creates a negative pressure inside the air distribution port. This negative pressure draws air from outside the inlet duct into the inlet duct. The relatively cool air entering through the air distribution port passes over the surface of the temperature sensor or thermostat, lowering its surrounding temperature and ensuring that its operating temperature does not exceed the limit. Furthermore, to address the issue of relatively cool air affecting the temperature detected by the temperature sensor or thermostat, this invention corrects the actual detected value by consulting a table corresponding to the detected value and the warm air temperature. This ensures that the detected warm air temperature is the actual warm air temperature, solving the technical problem in the prior art where the temperature sensor or thermostat is moved away from its location due to the high temperature of the heater, resulting in untimely and inaccurate temperature detection.

[0040] Furthermore, by simulating several sets of exhaust resistances at a set heating temperature, this invention summarizes the correspondence between the actual temperature value inside the inlet duct and the actual detection value of the temperature sensor or thermostat under different heating temperatures and different exhaust resistances. This forms a table of the correspondence between the detection value and the warm air temperature under different exhaust resistances at the set heating temperature and stores it for querying. This allows the dryer to determine the actual warm air temperature based on the query, ensuring the accuracy of the measurement.

[0041] Other features and advantages of the present invention will become clearer after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. Attached Figure Description

[0042] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of a temperature sensor installed on the inlet air duct in the prior art.

[0044] Figure 2 This is a schematic diagram of the dryer drum inlet temperature detection device proposed in this invention;

[0045] Figure 3 This is a flowchart of the dryer drum inlet temperature detection method proposed in this invention;

[0046] Figure 4 This is a schematic diagram of an embodiment of the dryer drum temperature detection device proposed in this invention;

[0047] Figure 5 This is a schematic diagram of the second embodiment of the dryer drum temperature detection device proposed in this invention. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0051] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0052] This invention aims to provide a method and device for detecting the temperature of the dryer drum, solving the technical problem of untimely temperature detection in existing dryers. Specifically, as follows... Figure 2 As shown, the dryer drum inlet temperature detection device proposed in this invention includes a heater 21, a drum inlet air duct 22, a temperature sensor 23, and an air distribution port 24.

[0053] The inlet air duct 22 includes a warm air inlet 221 and an inner drum air inlet 222. The warm air generated after being heated by the heater 21 enters the inlet air duct 22 through the warm air inlet 221. The inlet air duct 22 is connected to the inner drum through the inlet air inlet 222. The warm air flows through the inlet air duct 22 and enters the inner drum through the inlet air inlet 222. The warm air entering the inner drum dries the clothes by passing over the surface of the clothes and carries away the moisture and is directly discharged from the inner drum.

[0054] Temperature sensor 23 is installed on the air inlet duct 22 and is located within the set range of the warm air inlet 221. This set range is used to limit the distance between temperature sensor 22 and heater 21, ensuring that temperature sensor 23 is close enough to heater 21 to detect the temperature rise of the heated air in a timely manner.

[0055] Preferably, the temperature sensor 23 and the air outlet are installed and opened on the side of the inlet air duct 22 facing the heater 21. This not only shortens the straight-line distance between the temperature sensor 21 and the heater 21, but also avoids the dryer from affecting other tests in other tests. For example, in the internal combustion test, the side-opened air outlet can prevent smoke from affecting the shell structure of the dryer that cools the outside of the inlet air duct when it flows out from the air outlet.

[0056] In this invention, the temperature sensor 23 is installed within a set range of the warm air inlet 221 of the air inlet duct 22, so that it is close to the heater 21. When the warm air generated after being heated by the heater 21 enters the air inlet duct 22 from the warm air inlet 221, it can be detected immediately by the temperature sensor 23. Then, the heater 21 can be controlled to stop heating in time, so as to avoid the heater 21 continuing to heat the air and causing the temperature of the warm air entering the duct to be too high and damage the clothes. It can also avoid the abnormal tripping of the mechanical thermostat.

[0057] Because the temperature sensor 23 is too close to the heater 21, the temperature sensor 23 is prone to operating at high temperatures for a long time, which may cause the operating temperature to exceed the standard and reduce the service life of the temperature sensor 23. To address this problem, the present invention provides an air distribution port 24 on the inlet duct 22 and located on the side of the temperature sensor 23. When warm air enters the inlet duct 22 from the warm air inlet 221, the flowing warm air generates negative pressure around it through the air distribution port 24. The negative pressure causes the cold air outside the inlet duct 22 to enter the inlet duct 22 from the air distribution port 24 and pass over the surface of the temperature sensor 23, reducing the temperature around it and thus ensuring that its operating temperature does not exceed the standard.

[0058] Furthermore, regarding the issue that cold air might affect the accuracy of temperature detection by temperature sensor 23, such as... Figure 3 As shown, the present invention ensures the accuracy of temperature detection by the temperature sensor through the following technical means.

[0059] Step S31: Obtain the detection value from the temperature sensor.

[0060] The warm air generated after being heated by heater 21 enters the inlet duct 22 through warm air inlet 221. Temperature sensor 23 detects the temperature of the warm air. At the same time, cold air entering the inlet duct 22 from air distribution port 24 cools the temperature sensor 23.

[0061] Step S32: Query the table of correspondence between the detected value and the warm air temperature to obtain the actual warm air temperature entering the cylinder.

[0062] In this embodiment of the invention, before the dryer leaves the factory, a simulated heating temperature and several sets of exhaust pressures at the set heating temperature are set, as shown in Table 1 below. The drying process is started under simulated exhaust resistance. The actual temperature value of the warm air in the inlet duct and the detection value of the temperature sensor are obtained during the drying process. The correspondence between the detection value and the actual temperature value of the warm air is recorded to form a table of correspondence between the detection value and the warm air temperature under different exhaust resistances at the set heating temperature.

[0063] Table 1

[0064]

[0065] In the table, Tnm represents the actual temperature of the warm air when the measured value is n under the condition of exhaust resistance m at the set heating temperature.

[0066] This correspondence table is stored in the dryer's memory. When the dryer starts the drying process, it first determines the heating temperature (usually set by the user or the default setting of the drying process) and detects the current exhaust resistance of the dryer. Based on the heating temperature and exhaust resistance, it queries the stored correspondence table to obtain the correspondence between the detected value and the warm air temperature under the heating temperature and exhaust resistance, and obtains the actual warm air temperature entering the drum.

[0067] Exhaust resistance can be calculated by detecting the pressure between the exhaust pipe and the inlet duct, or by detecting the temperature difference between the exhaust pipe and the inlet duct. The specific detection method can be obtained by combining existing technical means, and this invention does not specifically limit it.

[0068] As described above, this invention, by simulating several sets of exhaust resistances at a set heating temperature, summarizes the correspondence between the actual temperature value in the inlet duct and the actual detection value of the temperature sensor or thermostat under different heating temperatures and different exhaust resistances. It forms a table of the correspondence between the detection value and the warm air temperature under different exhaust resistances at the set heating temperature and stores it for querying. This allows the dryer to determine the actual warm air temperature based on the query, ensuring the accuracy of the measurement.

[0069] Based on the aforementioned method for detecting the temperature of the dryer drum inlet, this invention proposes a device for detecting the temperature of the dryer drum inlet, such as... Figure 4 As shown, it includes a heater 41, an inlet air duct, a temperature sensor 43, an air distribution port, a warm air temperature determination module 45, a storage module 46, and a drying controller 47.

[0070] The inlet air duct includes a warm air inlet and an inner cylinder inlet; the warm air generated after being heated by the heater 41 enters the inlet air duct through the warm air inlet; the inlet air duct is connected to the inner cylinder through the inner cylinder inlet, and the warm air enters the inner cylinder through the inner cylinder inlet via the inlet air duct.

[0071] Temperature sensor 43 is installed on the air inlet duct and is located within the set range of the warm air inlet.

[0072] The air distribution port is located on the air inlet duct and is situated on the side of the temperature sensor 43.

[0073] The heating air temperature determination module 45 is used to obtain the detection value of the temperature sensor 43, query the correspondence table between the detection value and the heating air temperature stored in the storage module 46, and obtain the actual heating air temperature entering the cylinder.

[0074] The storage module 46 is used to store a table showing the correspondence between the detected values ​​and the warm air temperature. The table is obtained by the following steps: simulating several sets of exhaust resistance at a set heating temperature; starting the drying process under the simulated exhaust resistance; obtaining the actual temperature value of the warm air in the inlet duct and the detected value of the temperature sensor; and recording the detected values ​​and the actual temperature value of the warm air to form a table showing the correspondence between the detected values ​​and the warm air temperature under different exhaust resistances at the set heating temperature.

[0075] In some embodiments of the present invention, the dryer inlet temperature detection device further includes a query preparation module 48, which is used to determine the heating temperature and detect the exhaust resistance, so that the warm air temperature determination module 45 can query the correspondence between the detected values ​​under the heating temperature and exhaust resistance and the warm air temperature stored in the storage module 46 based on the heating temperature and exhaust resistance to obtain the actual inlet warm air temperature.

[0076] The drying controller 47 is connected to the warm air temperature determination module 45 and the heater 41. It obtains the actual warm air temperature entering the drum determined by the warm air temperature determination module 45, controls the execution of the drying process based on the actual warm air temperature entering the drum, and shuts off the heater 41 in time when the actual warm air temperature entering the drum exceeds the standard.

[0077] Based on the above-mentioned method for detecting the inlet temperature of a dryer, such as Figure 5 As shown, the present invention also proposes a dryer drum inlet temperature detection device, including a heater 51, a drum inlet air duct, a thermostat 53, an air distribution port, a warm air temperature determination module 55, a storage module 56, and a drying controller 57.

[0078] The drying controller 57 controls the heating temperature of the heater 51, as well as controls the heater 51 to turn on and off.

[0079] The inlet air duct includes a warm air inlet and an inner cylinder inlet; the warm air generated after being heated by heater 51 enters the inlet air duct through the warm air inlet; the inlet air duct is connected to the inner cylinder through the inner cylinder inlet, and the warm air enters the inner cylinder through the inner cylinder inlet via the inlet air duct.

[0080] The thermostat 53 is installed on the air inlet duct and is located within the set range of the warm air inlet; it is configured to send a signal to the drying controller 57 when the detected temperature exceeds the temperature limit, so that the drying controller 57 controls the heater 51 to stop heating.

[0081] The air distribution port is located on the air inlet duct and on the side of the thermostat 53.

[0082] The heating air temperature determination module 55 is used to obtain the detection value of the thermostat 53, query the correspondence table between the detection value and the heating air temperature stored in the storage module 56, and obtain the actual heating air temperature entering the cylinder.

[0083] The storage module 56 is used to store a table showing the correspondence between the detected values ​​and the warm air temperature. The table is obtained by the following steps: simulating several sets of exhaust resistance at a set heating temperature; starting the drying process under the simulated exhaust resistance; obtaining the actual temperature value of the warm air in the inlet duct and the detected value of the thermostat; and recording the detected values ​​and the actual temperature value of the warm air to form a table showing the correspondence between the detected values ​​and the warm air temperature under different exhaust resistances at the set heating temperature.

[0084] In some embodiments of the present invention, the dryer inlet temperature detection device further includes a query preparation module 58, which is used to determine the heating temperature and detect the exhaust resistance, so that the warm air temperature determination module 55, based on the heating temperature and exhaust resistance, queries the correspondence between the detected values ​​under the heating temperature and exhaust resistance and the warm air temperature stored in the storage module 57, and obtains the actual inlet warm air temperature.

[0085] This invention also proposes a dryer based on the aforementioned dryer drum inlet temperature detection device. By using this device, the temperature sensor or thermostat is positioned near the heater in the drum inlet duct, enabling timely and accurate detection of the warm air temperature. Combined with the method of opening an air distribution port on the side of the temperature sensor or thermostat, the negative pressure generated within the drum inlet duct draws relatively cool air into the duct, cooling the surface of the temperature sensor or thermostat. Furthermore, by consulting a table showing the correspondence between the detected value and the warm air temperature, the accuracy of the actual detected value is ensured. This solves the technical problem in the prior art where the temperature sensor or thermostat is moved away from the heater due to its high temperature, resulting in untimely and inaccurate temperature detection.

[0086] It should be noted that, in the specific implementation process, the control part mentioned above can be implemented by a hardware processor executing computer-executable instructions in software form stored in memory, which will not be elaborated here. The programs corresponding to the actions performed by the control can all be stored in the computer-readable storage medium of the system in software form, so that the processor can call and execute the operations corresponding to the above modules.

[0087] The computer-readable storage media mentioned above may include volatile memory, such as random access memory; may also include non-volatile memory, such as read-only memory, flash memory, hard disk or solid-state drive; and may also include combinations of the above types of memory.

[0088] The term "processor" as mentioned above can also refer to a collective of multiple processing elements. For example, a processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor, and it can also be a special-purpose processor.

[0089] It should be noted that the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A method for detecting the inlet temperature of a clothes dryer, wherein the clothes dryer includes: heater; The air inlet duct includes a warm air inlet and an inner cylinder air inlet; The warm air generated after being heated by the heater enters the inlet air duct through the warm air inlet; the inlet air duct is connected to the inner cylinder through the inner cylinder inlet, and the warm air enters the inner cylinder from the inner cylinder inlet through the inlet air duct; The dryer is characterized in that it further includes: A temperature sensor is installed on the air inlet duct and is located within the set range of the warm air inlet. An air outlet is provided on the inlet duct and located on the side of the temperature sensor; The method includes: Obtain the detection value of the temperature sensor; Query the table showing the correspondence between the detected value and the heating air temperature to obtain the actual heating air temperature entering the cylinder.

2. The method for detecting the inlet temperature of a dryer according to claim 1, characterized in that, The table showing the correspondence between the detected values ​​and the warm air temperature is obtained and stored in the dryer according to the following steps: Simulate several sets of exhaust resistance at a set heating temperature; The drying process is started under simulated exhaust resistance; Obtain the actual temperature value of the warm air inside the air inlet duct and the detection value of the temperature sensor; Record the measured values ​​and the actual temperature of the warm air to form a table showing the correspondence between measured values ​​and warm air temperature under different exhaust resistances at the set heating temperature.

3. The method for detecting the inlet temperature of a dryer according to claim 2, characterized in that, The method further includes: Determine the heating temperature; Detect exhaust resistance; Based on the heating temperature and the exhaust resistance, the correspondence between the detected values ​​at the heating temperature and the exhaust resistance and the warm air temperature is queried to obtain the actual warm air temperature entering the cylinder.

4. A dryer drum inlet temperature detection device, including: heater; The air inlet duct includes a warm air inlet and an inner cylinder air inlet; The warm air generated after being heated by the heater enters the inlet air duct through the warm air inlet; the inlet air duct is connected to the inner cylinder through the inner cylinder inlet, and the warm air enters the inner cylinder from the inner cylinder inlet through the inlet air duct; Its characteristic is that it further includes: A temperature sensor is installed on the air inlet duct and is located within the set range of the warm air inlet. An air outlet is provided on the inlet duct and located on the side of the temperature sensor; The warm air temperature determination module is used to obtain the detection value of the temperature sensor, query the correspondence table between the detection value and the warm air temperature, and obtain the actual warm air temperature entering the cylinder.

5. The dryer drum inlet temperature detection device according to claim 4, characterized in that, The device further includes: The storage module is used to store the table showing the correspondence between the detected values ​​and the warm air temperature; The table showing the correspondence between the detected values ​​and the heating air temperature is obtained according to the following steps: Simulate several sets of exhaust resistance at a set heating temperature; The drying process is started under simulated exhaust resistance; Obtain the actual temperature value of the warm air inside the air inlet duct and the detection value of the temperature sensor; Record the measured values ​​and the actual temperature of the warm air to form a table showing the correspondence between measured values ​​and warm air temperature under different exhaust resistances at the set heating temperature.

6. The dryer drum inlet temperature detection device according to claim 5, characterized in that, The device further includes: The query preparation module is used to determine the heating temperature and detect the exhaust resistance, so that the warm air temperature determination module can query the correspondence between the detected value under the heating temperature and the exhaust resistance and the warm air temperature, and obtain the actual warm air temperature entering the cylinder.

7. A dryer drum inlet temperature detection device, including: heater; A drying controller controls the heating temperature of the heater and controls the heater to turn on and off. The air inlet duct includes a warm air inlet and an inner cylinder air inlet; The warm air generated after being heated by the heater enters the inlet air duct through the warm air inlet; the inlet air duct is connected to the inner cylinder through the inner cylinder inlet, and the warm air enters the inner cylinder from the inner cylinder inlet through the inlet air duct; Its characteristic is that it further includes: A thermostat is installed on the air inlet duct and located within the set range of the warm air inlet; it is configured to send a signal to the drying controller when the detected temperature exceeds the temperature limit, so that the drying controller controls the heater to stop heating. An air outlet is provided on the air inlet duct and located on the side of the thermostat; The heating air temperature determination module is used to obtain the detection value of the thermostat, query the correspondence table between the detection value and the heating air temperature, and obtain the actual heating air temperature entering the cylinder.

8. The dryer drum inlet temperature detection device according to claim 7, characterized in that, The device further includes: The storage module is used to store the table showing the correspondence between the detected values ​​and the warm air temperature; The table showing the correspondence between the detected values ​​and the heating air temperature is obtained according to the following steps: Simulate several sets of exhaust resistance at a set heating temperature; The drying process is started under simulated exhaust resistance; Obtain the actual temperature value of the warm air inside the air inlet duct and the detection value of the thermostat; Record the measured values ​​and the actual temperature of the warm air to form a table showing the correspondence between measured values ​​and warm air temperature under different exhaust resistances at the set heating temperature.

9. The dryer drum inlet temperature detection device according to claim 8, characterized in that, The device further includes: The query preparation module is used to determine the heating temperature and detect the exhaust resistance, so that the warm air temperature determination module can query the correspondence between the detected value under the heating temperature and the exhaust resistance and the warm air temperature, and obtain the actual warm air temperature entering the cylinder.

10. A clothes dryer, characterized in that, Includes the dryer drum temperature detection device as described in claim 4 or claim 7.

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