Clothes dryer control method and clothes dryer

Abstract

The invention relates to the technical field of clothes processing equipment, and discloses a clothes dryer control method and a clothes dryer, and the clothes dryer control method comprises the steps: obtaining a drying program, and controlling a roller of the clothes dryer to rotate according to the drying program; judging whether the load in the roller is wound or not, if yes, controlling the roller to rotate in the direction opposite to the current rotating direction, and increasing the rotating speed of the roller. By controlling the roller to rotate reversely, the direction of centrifugal force borne by the load can be changed, and then winding is unwound. Meanwhile, the rotating speed of the roller is increased, the centrifugal force borne by the load in the roller can be increased, winding is further unwound, meanwhile, the rotating diameter of the load in the roller is increased, and therefore the probability that the load is wound again can be reduced, hot air can make full contact with the load, the drying efficiency is improved, and the drying time is shortened. When the clothes dryer control method is adopted to execute the drying program, the winding probability can be reduced, and wrinkles on the load after drying are reduced.

Description

Technical Field

[0001] This invention relates to the field of clothing processing equipment technology, and in particular to a dryer control method and a dryer. Background Technology

[0002] During the drying process of a clothes dryer, the drum uses lifting ribs to continuously lift and tumble the load (such as clothes, duvet covers, etc.), so that the load comes into contact with hot air. The hot air carries away the moisture, achieving the purpose of drying.

[0003] Existing dryers primarily operate based on the drying program selected by the user. Different drying programs have preset drying parameters, such as drum speed, rotation-to-stop ratio, drying temperature, and drying time. However, due to significant differences in the type and size of the load, the drying programs built into dryers cannot cover all load conditions. Therefore, during the execution of the drying program, the load inevitably clumps and tangles, affecting drying efficiency and easily leading to uneven drying.

[0004] Therefore, there is an urgent need for a dryer control method and a dryer to solve the above problems. Summary of the Invention

[0005] Based on the above problems, the purpose of this invention is to provide a dryer control method and a dryer that can reduce the probability of load entanglement during the drying process, improve drying efficiency, and shorten drying time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] On the one hand, a dryer control method is provided, including the following steps:

[0008] Obtain the drying program and control the rotation of the dryer drum according to the drying program;

[0009] If the load inside the roller is entangled, the roller is controlled to rotate in the opposite direction to the current rotation direction, and the rotational speed of the roller is increased.

[0010] As an optional embodiment of the dryer control method of the present invention, the step of determining whether the load inside the drum is entangled includes:

[0011] Obtain temperature information at the air outlet and / or air inlet of the roller;

[0012] Determine whether the temperature change value ΔT1 at the air outlet at two adjacent moments is greater than a first preset temperature value T1. If so, determine that the load is entangled; and / or,

[0013] Determine whether the temperature difference ΔT2 between the air outlet and the air inlet is greater than the second preset temperature value T2. If so, determine that the load is entangled.

[0014] As an optional embodiment of the dryer control method of the present invention, the step of determining whether the load inside the drum is entangled further includes:

[0015] The humidity information of the load inside the drum is obtained. When the humidity value M of the load is greater than the preset humidity value Me, and the temperature change value ΔT1 is greater than the first preset temperature value T1 and / or the difference value ΔT2 is greater than the second preset temperature value T2, it is determined that the load is entangled.

[0016] The drying process ends when the humidity value M of the load is less than or equal to the preset humidity value Me.

[0017] As an optional embodiment of the dryer control method of the present invention, the step of increasing the rotational speed of the drum includes:

[0018] The temperature at the air outlet and / or the air inlet is detected in real time. Whenever the temperature change value ΔT1 is detected to be greater than the first preset temperature value T1, and / or whenever the difference value ΔT2 is detected to be greater than the second preset temperature value T2, the rotation speed of the drum is increased, and the adjusted rotation speed is used as the rotation speed of the drum in the next drying stage.

[0019] As an optional embodiment of the dryer control method of the present invention, the step of increasing the rotational speed of the drum includes:

[0020] The temperature at the air outlet and / or the air inlet is detected once every first preset time interval t1.

[0021] When the temperature change value ΔT1 is detected to be greater than the first preset temperature value T1 for N consecutive times, and / or the difference value ΔT2 is detected to be greater than the second preset temperature value T2 for N consecutive times, it is determined that the load inside the drum is entangled, where N is an integer greater than or equal to 2.

[0022] As an optional embodiment of the dryer control method of the present invention, the step of increasing the rotational speed of the drum further includes:

[0023] Obtain the weight information of the load inside the drum, and determine the rotational speed adjustment value of the drum based on the weight information;

[0024] If the weight of the load is within a first weight range, the speed adjustment value is a first speed value V1; if the weight of the load is within a second weight range, the speed adjustment value is a second speed value V2.

[0025] The weight in the first weight range is less than the weight in the second weight range, and the first rotational speed value V1 is less than the second rotational speed value V2.

[0026] As an optional embodiment of the dryer control method of the present invention, the step of increasing the rotational speed of the drum further includes:

[0027] Obtain the humidity information of the load inside the drum, and determine the rotational speed adjustment value of the drum based on the humidity information;

[0028] If the humidity value of the load is within the first humidity range, the speed adjustment value is the third speed value V3; if the humidity value of the load is within the second humidity range, the speed adjustment value is the fourth speed value V4.

[0029] The humidity in the first humidity range is less than the humidity in the second humidity range, and the third rotation speed value V3 is less than the fourth rotation speed value V4.

[0030] As an optional solution to the dryer control method of the present invention, after the drum rotates in the direction opposite to the current rotation direction for a second preset time t2, the drum is controlled to rotate at the adjusted speed and the rotation-stop ratio set in the drying program.

[0031] As an optional embodiment of the dryer control method of the present invention, the dryer control method further includes the following steps:

[0032] When the load inside the roller is detected to be entangled, the roller is controlled to rotate in the opposite direction to the current rotation direction, the rotation speed of the roller is increased, and the rotation-to-stop ratio of the roller is adjusted.

[0033] On the other hand, a clothes dryer is provided, controlled by the clothes dryer control method described above, the clothes dryer comprising:

[0034] Organism;

[0035] A roller is rotatably disposed within the machine body;

[0036] A detection component is used to detect whether the load inside the drum is entangled;

[0037] The control module is communicatively connected to the detection component, and the control module can control the rotation direction and speed of the roller according to the winding information detected by the detection component.

[0038] The beneficial effects of this invention are as follows:

[0039] The dryer control method and dryer provided by this invention, during the drying process, when the load inside the drum becomes tangled, can be reversed by controlling the drum to change the direction of the centrifugal force on the load, thereby untangling it. Simultaneously, increasing the drum's rotational speed increases the centrifugal force on the load inside the drum, further untangling it. At the same time, the rotational diameter of the load inside the drum increases, reducing the probability of the load tangling again. In other words, controlling the drum to rotate in reverse and increasing the rotational speed reduces the probability of the load tangling in the next drying stage, allowing hot air to fully contact the load, thereby improving drying efficiency and shortening drying time. Especially for large loads (such as quilts, duvet covers, etc.), using this dryer control method to execute the drying program can reduce the probability of tangling, avoid the situation where the outside is dried but the inside is still damp, ensure thorough drying, and reduce wrinkles on the load after drying. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0041] Figure 1 This is a first flowchart of the dryer control method provided in a specific embodiment of the present invention;

[0042] Figure 2 This is a second flowchart of the dryer control method provided in a specific embodiment of the present invention;

[0043] Figure 3 This is a curve showing the temperature change over time at the air outlet of the drum, provided in a specific embodiment of the present invention.

[0044] Figure 4 This is the third flowchart of the dryer control method provided in a specific embodiment of the present invention;

[0045] Figure 5 This is the fourth flowchart of the dryer control method provided in a specific embodiment of the present invention;

[0046] Figure 6 This is the fifth flowchart of the dryer control method provided in a specific embodiment of the present invention;

[0047] Figure 7 This is a schematic diagram of a clothes dryer provided in a specific embodiment of the present invention.

[0048] In the picture:

[0049] 1-Machine body; 2-Drum; 3-Control module. Detailed Implementation

[0050] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail 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.

[0051] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0052] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0053] Example 1

[0054] like Figure 1 As shown, this embodiment provides a dryer control method, including the following steps:

[0055] S1. Obtain the drying program and control the rotation of the dryer drum according to the drying program;

[0056] S2. Determine whether the load inside the drum is entangled. If so, control the drum to rotate in the opposite direction to the current rotation direction and increase the drum speed.

[0057] During the drying process, when the load inside the drum becomes tangled, reversing the drum's rotation changes the direction of the centrifugal force on the load, thus untangling it. Simultaneously, increasing the drum's rotation speed increases the centrifugal force on the load, further untangling it. At the same time, the increased diameter of the load's rotation within the drum reduces the chance of re-tangling. In other words, reversing the drum's rotation and increasing its speed reduces the likelihood of tangling in the next drying stage, ensuring sufficient contact between hot air and the load, thereby improving drying efficiency and shortening drying time. This method is particularly effective for large loads (such as quilts and duvet covers), reducing tangling and preventing the outside from drying while the inside remains damp, ensuring thorough drying and minimizing wrinkles after drying.

[0058] When drying large loads (such as quilts, duvet covers, etc.), the lower the drum speed, the more severe the load will clump together. Therefore, by increasing the drum speed, the rotation diameter of the load inside the drum can be increased, greatly reducing the chance of clumping.

[0059] like Figure 2 As shown, in step S2, the step of determining whether the load inside the drum is entangled includes:

[0060] The temperature information at the air outlet of the roller is obtained, and the load is determined to be entangled based on the temperature information.

[0061] During the drying process, dry hot air enters the drum and comes into contact with the wet load, becoming humid air. Since the temperature of the hot air entering the drum is uniform, when the load inside the drum is not entangled, the temperature of the humid air at the drum outlet will rise relatively evenly as the drying time increases; that is, the temperature change at the outlet is relatively gradual. However, when the load inside the drum becomes entangled, because the volume of the load decreases, the hot air entering the drum cannot fully contact the wet load, resulting in a smaller temperature drop in the hot air. In this case, the temperature at the outlet will rise rapidly in a short period of time. Figure 3 As shown. Therefore, by detecting the temperature at the air outlet and combining it with the temperature change characteristics, it is possible to determine whether the load inside the drum is entangled.

[0062] Specifically, the steps for determining whether the load is entangled based on temperature information include:

[0063] Determine whether the temperature change value ΔT1 at the air outlet at two adjacent moments is greater than the first preset temperature value T1. If so, determine that the load is entangled.

[0064] The temperature change value ΔT1 at the air outlet can be obtained by calculating the temperature difference between two adjacent moments. When the temperature change value ΔT1 at the air outlet is greater than the first preset temperature value T1, it indicates that the temperature at the air outlet has changed abruptly, and the load inside the drum is entangled. This method of determining whether the load is entangled based on the temperature information at the drum's air outlet allows for adjusting the drum's rotation speed according to the actual load situation, fundamentally solving the problem of load entanglement during the drying process.

[0065] For example, the temperature at the air inlet of the roller is 40℃~85℃, and the value of the first preset temperature T1 is 10℃~20℃. For example, T1 is 12℃, 15℃, 16℃, 17℃, etc.

[0066] Furthermore, the step of determining whether the load inside the drum causes entanglement also includes:

[0067] The system acquires the humidity information of the load inside the drum. If the load's humidity value M is greater than the preset humidity value Me, and the temperature change value ΔT1 is greater than the first preset temperature value T1, it is determined that the load is entangled. If the load's humidity value M is less than or equal to the preset humidity value Me, the drying program ends.

[0068] That is, when the humidity value M of the load is less than or equal to Me, it indicates that the load has been dried and the drying process ends. If the humidity value M of the load is greater than Me, it indicates that the load has not been dried. Only when the temperature change value ΔT1 at the air outlet is greater than the first preset temperature value T1 is it determined that the load has become entangled. This can ensure the accuracy of the entanglement judgment, avoid misjudgment that would lead to an increase in the drum speed, and reduce the energy consumption of the dryer.

[0069] For example, the preset humidity value Me ranges from 10% to 50%. Different preset humidity values ​​Me can be set for different drying programs, such as Me values ​​of 20%, 30%, 35%, 40%, 50%, etc.

[0070] Optionally, in step S2, the step of increasing the speed of the roller includes:

[0071] The temperature at the air outlet is monitored in real time. Whenever the temperature change ΔT1 is detected to be greater than the first preset temperature value T1, the speed of the drum is increased, and the adjusted speed is used as the speed of the drum in the next drying stage.

[0072] That is, whenever ΔT1 > T1, the drum is controlled to rotate in the opposite direction, and the drum speed is increased based on the current speed. This gradual adjustment of the drum speed can prevent the drum speed from being too high, and at the same time reduce the probability of the load entanglement in the next drying stage. This allows the drum to rotate at a suitable speed, and the load inside the drum will hardly entangle anymore, thereby improving drying efficiency, shortening drying time, and making drying more uniform. It can also effectively prevent the situation where the outside is dried but the inside is still damp.

[0073] Example 2

[0074] This embodiment provides a dryer control method, which differs from Embodiment 1 in that:

[0075] In this embodiment, step S2, the step of increasing the drum speed, includes:

[0076] The temperature at the air outlet is checked once every first preset time interval t1;

[0077] When the temperature change value ΔT1 is detected to be greater than the first preset temperature value T1 for N consecutive times, it is determined that the load inside the drum is entangled. N is an integer greater than or equal to 2.

[0078] That is, the load is determined to be entangled only when the temperature change value ΔT1 at the air outlet is detected at least twice consecutively greater than the first preset temperature value T1. This can further improve the accuracy of the load entanglement information judgment, avoid misjudgment, and make the roller rotate within a reasonable speed range.

[0079] For example, N is set to 2, meaning that when the temperature change value ΔT1 is detected to be greater than the first preset temperature value T1 twice consecutively, it is determined that the load inside the drum is entangled. In other embodiments, N may also be set to 3, 4, 5, etc., and is not limited to the values ​​listed above.

[0080] For example, the first preset duration t1 ranges from 0.1s to 2s. For instance, t1 can take values ​​of 0.1s, 0.3s, 0.5s, 1s, 1.5s, 2s, etc.

[0081] Example 3

[0082] This embodiment provides a dryer control method, which is a further improvement on the first embodiment:

[0083] like Figure 4 As shown, in this embodiment, the rotational speed of the drum is adjusted according to the weight information of the load inside the drum in order to determine the speed increase gradient.

[0084] Specifically, the steps to increase the speed of the roller also include:

[0085] Obtain the weight information of the load inside the drum, and determine the drum speed adjustment value based on the weight information;

[0086] If the load weight is within the first weight range, the speed adjustment value is the first speed value V1; if the load weight is within the second weight range, the speed adjustment value is the second speed value V2.

[0087] This setting allows the roller speed adjustment gradient to be determined based on the actual weight of the drying load, avoiding damage to the load inside the roller due to excessively high roller speed, while minimizing the dryer's energy consumption.

[0088] Furthermore, the weight in the first weight range is less than the weight in the second weight range, and the first rotational speed value V1 is less than the second rotational speed value V2. That is, the heavier the load, the higher the rotational speed can be, which is more conducive to untangling the load.

[0089] Optionally, the first weight range is 0kg to 3kg, and the first rotational speed value V1 ranges from 1 rpm to 2 rpm. For example, when the detected load weight is 1kg, the rotational speed of the roller is increased by 1 rpm every time the load is detected to be wrapped.

[0090] For example, if the initial roller speed is 50 rpm, and the first time entanglement is detected with a load weight of 3 kg, the roller speed is adjusted to 52 rpm; the second time entanglement is detected with a load weight of 2.5 kg, the roller speed is adjusted to 54 rpm; and the third time entanglement is detected with a load weight of 2 kg, the roller speed is adjusted to 55 rpm. The higher the roller speed, the higher the load falls within the roller, making it easier to untangle and reducing the likelihood of subsequent entanglement.

[0091] Optionally, the second weight range is 3kg to 5kg, and the second rotational speed V2 is 2 rpm to 4 rpm. For example, when the detected load weight is 4kg, the roller is controlled to increase by 3 rpm every time the load is detected to be wrapped.

[0092] Example 4

[0093] This embodiment provides a dryer control method, which differs from Embodiment 3 in that:

[0094] like Figure 5 As shown, in this embodiment, the rotational speed of the drum is adjusted according to the humidity information of the load inside the drum in order to determine the speed increase gradient.

[0095] Specifically, the steps to increase the speed of the roller also include:

[0096] Obtain the humidity information of the load inside the drum, and determine the drum speed adjustment value based on the humidity information;

[0097] If the humidity value of the load is within the first humidity range, the speed adjustment value is the third speed value V3; if the humidity value of the load is within the second humidity range, the speed adjustment value is the fourth speed value V4.

[0098] This setting allows the speed adjustment gradient to be determined based on the humidity of the drying load, preventing damage to the load inside the drum from excessively high drum speed, while also minimizing the dryer's energy consumption.

[0099] Furthermore, the humidity in the first humidity range is lower than that in the second humidity range, and the third rotational speed value V3 is lower than the fourth rotational speed value V4. That is, the wetter the load, the higher the rotational speed can be, making it easier to untangle the load more quickly.

[0100] Optionally, the first humidity range is 90% to 120%, and the third rotational speed value V3 ranges from 1 rpm to 2 rpm. For example, when the detected load humidity is 100%, the roller speed is increased by 2 rpm each time entanglement is detected. The higher the roller speed, the higher the load falls within the roller, making it easier to untangle and reducing the likelihood of subsequent entanglement.

[0101] Optionally, the second humidity range is 120% to 150%, and the fourth rotational speed value V4 ranges from 2 rpm to 4 rpm. For example, when the detected load weight is 130%, the roller is controlled to increase by 3 rpm every time the load is detected to be wrapped.

[0102] Example 5

[0103] This embodiment provides a dryer control method, which is a further improvement on the first embodiment:

[0104] like Figure 4 As shown, in step S2, after the drum rotates for a second preset time t2 in the opposite direction to the current rotation direction, the drum is controlled to rotate at the adjusted speed and the rotation-stop ratio set in the drying program to enter the next drying stage. If the load still entangles in the next drying stage, the drum is controlled to rotate in the opposite direction again and the drum speed is increased until the drying program ends.

[0105] The second preset duration t2 mentioned above can be determined based on the detected temperature at the air outlet of the drum. The duration from the start of controlling the drum to the detection of the temperature change value ΔT1 at the air outlet being less than or equal to the first preset temperature value T1 is the second preset duration t2. After the second preset duration t2, it indicates that the load has been unwound, and the drum can be controlled to rotate according to the rotation-stop ratio set in the drying program.

[0106] In other embodiments, a second preset duration t2 can be preset. After the control drum rotates in the reverse direction for the second preset duration t2, the rotation-to-stop ratio set in the drying program is automatically restored. For example, the value range of the second preset duration t2 is 10s to 120s. For example, t2 can be 10s, 30s, 50s, 60s, 100s, 120s, etc.

[0107] Example 6

[0108] This embodiment provides a dryer control method, which is a further improvement on the first embodiment:

[0109] In this embodiment, the dryer control method further includes the following steps:

[0110] When the load inside the drum is detected to be entangled, the drum is controlled to rotate in the opposite direction to the current rotation direction, the drum speed is increased, and the drum rotation-to-stop ratio is adjusted.

[0111] When the load inside the drum becomes entangled, the rotation-to-stop ratio of the drum can be adjusted to further untangle the load. For example, when entanglement is detected, the drum is controlled to rotate in the opposite direction, and the drum speed and rotation-to-stop ratio are increased. This changes the direction of the centrifugal force on the load, increases the centrifugal force on the load, reduces the drum's stop time, and makes it easier to untangle the load, thereby reducing the chance of the load becoming entangled again.

[0112] Example 7

[0113] This embodiment provides a dryer control method, which differs from Embodiment 1 in that:

[0114] like Figure 6 As shown, in step S2, the step of determining whether the load inside the broken roller causes entanglement includes:

[0115] Obtain temperature information at the air outlet and air inlet of the drum;

[0116] Determine whether the temperature difference ΔT2 between the air outlet and the air inlet is greater than the second preset temperature value T2. If so, determine that the load is entangled.

[0117] During the drying process, since the temperature of the hot air entering the drum is uniform, when the load inside the drum becomes entangled, the volume of the load decreases, and the hot air entering the drum cannot fully contact the wet load. This results in a smaller temperature drop in the hot air, causing the temperature at the air outlet to rise rapidly in a short time. The temperature difference ΔT2 between the air outlet and the air inlet also changes abruptly. Therefore, when the temperature difference ΔT2 between the air outlet and the air inlet exceeds the second preset temperature value T2, it indicates that the load inside the drum is entangled.

[0118] For example, the temperature at the air inlet inside the drum is 40℃~85℃, and the value range of the second preset temperature T2 is 10℃~30℃. For example, T2 can be 10℃, 15℃, 20℃, 25℃, etc.

[0119] Furthermore, the step of determining whether the load inside the drum causes entanglement also includes:

[0120] The system acquires the humidity information of the load inside the drum. If the load's humidity value M is greater than the preset humidity value Me, and the difference ΔT2 is greater than the second preset temperature value T2, it is determined that the load is entangled. If the load's humidity M is less than or equal to the preset humidity value Me, the drying program ends.

[0121] If the humidity value M of the load is greater than Me, it indicates that the load has not yet dried. At this time, when the temperature difference ΔT2 between the air inlet and the air outlet is greater than the second preset temperature T2, it is determined that the load has become entangled. This can ensure the accuracy of the entanglement judgment, avoid misjudgment that would lead to an increase in the drum speed, and reduce the energy consumption of the dryer.

[0122] For example, the preset humidity value Me ranges from 10% to 50%. Different preset humidity values ​​Me can be set for different drying programs, such as Me values ​​of 20%, 30%, 35%, 40%, 50%, etc.

[0123] In step S2, the temperatures at the air outlet and air inlet can be detected in real time. Whenever the detected temperature difference ΔT2 is greater than the second preset temperature value T2, the rotation speed of the drum is increased, and the adjusted rotation speed is used as the drum rotation speed for the next drying stage. That is, whenever ΔT2 > T2, the drum is controlled to rotate in the opposite direction, and the drum rotation speed is increased based on the current rotation speed. This gradual adjustment of the drum rotation speed can prevent the drum rotation speed from being too high and reduce the probability of the load entanglement in the next drying stage.

[0124] In other embodiments, the temperature at the air outlet and air inlet can be detected every first preset time interval t1; when the difference ΔT2 is detected to be greater than the second preset temperature value T2 for N consecutive times, it is determined that the load inside the drum is entangled. N is an integer greater than or equal to 2. That is, the load is determined to be entangled only when the difference ΔT2 is detected to be greater than the second preset temperature value T2 for at least two consecutive times. This can further improve the accuracy of the judgment of load entanglement information, avoid misjudgment, and ensure that the drum rotates within a reasonable speed range.

[0125] Example 8

[0126] like Figure 7 As shown, this embodiment provides a clothes dryer controlled by the clothes dryer control method described in any of the above embodiments. The clothes dryer includes a body 1, a roller 2, a detection component, and a control module 3. The roller 2 is rotatably disposed inside the body 1. The detection component is used to detect whether the load inside the roller 2 is entangled. The control module 3 is communicatively connected to the detection component, and the control module 3 can control the rotation direction and speed of the roller 2 according to the entanglement information detected by the detection component.

[0127] Optionally, the detection components include a first temperature sensor and a second temperature sensor. The first temperature sensor detects the temperature at the air outlet of the roller 2, and the second temperature sensor detects the temperature at the air inlet of the roller 2. The control module 3 controls the rotation direction and speed of the roller 2 based on the temperature information detected by the first temperature sensor and / or the second temperature sensor. For example, both the first and second temperature sensors are temperature sensors, and one or more temperature sensors can be installed at both the air outlet and the air inlet.

[0128] Furthermore, the detection component also includes a humidity detector, which is used to detect the humidity value of the load inside the roller 2, so that the control module 3 can determine whether the load is entangled and whether the load is dried based on the humidity information detected by the humidity detector. For example, the humidity detector is a humidity sensor.

[0129] Furthermore, the dryer is also equipped with a weighing device, which is used to detect the weight of the load inside the drum 2, so that the control module 3 can control the adjustment value of the drum 2 rotation speed based on the weight information detected by the weighing device. For example, the weighing device is a load cell.

[0130] During the drying process, when the dryer detects that the load is tangled, the control module 3 stops the rotation of drum 2 in its current direction and controls it to rotate in the opposite direction. This changes the direction of the centrifugal force on the load, increasing the centrifugal force on the load inside drum 2 and untangling it. Controlling drum 2 to rotate in the opposite direction and increasing its speed reduces the chance of the load tangling in the next drying stage, allowing hot air to fully contact the load, thereby improving drying efficiency, shortening drying time, and reducing wrinkles on the load after drying.

[0131] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A dryer control method, characterized in that, Includes the following steps: Obtain the drying program and control the rotation of the dryer drum according to the drying program; If the load inside the roller is entangled, the roller is controlled to rotate in the opposite direction to the current rotation direction, and the rotational speed of the roller is increased.

2. The dryer control method according to claim 1, characterized in that, The steps for determining whether the load inside the drum is entangled include: Obtain temperature information at the air outlet and / or air inlet of the roller; Determine whether the temperature change value ΔT1 at the air outlet at two adjacent moments is greater than a first preset temperature value T1. If so, determine that the load is entangled; and / or, Determine whether the temperature difference ΔT2 between the air outlet and the air inlet is greater than the second preset temperature value T2. If so, determine that the load is entangled.

3. The dryer control method according to claim 2, characterized in that, The step of determining whether the load inside the drum is entangled further includes: The humidity information of the load inside the drum is obtained. When the humidity value M of the load is greater than the preset humidity value Me, and the temperature change value ΔT1 is greater than the first preset temperature value T1 and / or the difference value ΔT2 is greater than the second preset temperature value T2, it is determined that the load is entangled. The drying process ends when the humidity value M of the load is less than or equal to the preset humidity value Me.

4. The dryer control method according to claim 2, characterized in that, The steps for increasing the rotational speed of the roller include: The temperature at the air outlet and / or the air inlet is detected in real time. Whenever the temperature change value ΔT1 is detected to be greater than the first preset temperature value T1, and / or whenever the difference value ΔT2 is detected to be greater than the second preset temperature value T2, the rotation speed of the drum is increased, and the adjusted rotation speed is used as the rotation speed of the drum in the next drying stage.

5. The dryer control method according to claim 2, characterized in that, The steps for increasing the rotational speed of the roller include: The temperature at the air outlet and / or the air inlet is detected once every first preset time interval t1. When the temperature change value ΔT1 is detected to be greater than the first preset temperature value T1 for N consecutive times, and / or the difference value ΔT2 is detected to be greater than the second preset temperature value T2 for N consecutive times, it is determined that the load inside the drum is entangled, where N is an integer greater than or equal to 2.

6. The dryer control method according to claim 4 or 5, characterized in that, The step of increasing the rotational speed of the roller also includes: Obtain the weight information of the load inside the drum, and determine the rotational speed adjustment value of the drum based on the weight information; If the weight of the load is within a first weight range, the speed adjustment value is a first speed value V1; if the weight of the load is within a second weight range, the speed adjustment value is a second speed value V2. The weight in the first weight range is less than the weight in the second weight range, and the first rotational speed value V1 is less than the second rotational speed value V2.

7. The dryer control method according to claim 4 or 5, characterized in that, The step of increasing the rotational speed of the roller also includes: Obtain the humidity information of the load inside the drum, and determine the rotational speed adjustment value of the drum based on the humidity information; If the humidity value of the load is within the first humidity range, the speed adjustment value is the third speed value V3; if the humidity value of the load is within the second humidity range, the speed adjustment value is the fourth speed value V4. The humidity in the first humidity range is less than the humidity in the second humidity range, and the third rotation speed value V3 is less than the fourth rotation speed value V4.

8. The dryer control method according to any one of claims 1-5, characterized in that, After the drum rotates for a second preset time t2 in the opposite direction to the current rotation direction, the drum is controlled to rotate at the adjusted speed and the rotation-stop ratio set in the drying program.

9. The dryer control method according to any one of claims 1-5, characterized in that, The dryer control method further includes the following steps: When the load inside the roller is detected to be entangled, the roller is controlled to rotate in the opposite direction to the current rotation direction, the rotation speed of the roller is increased, and the rotation-to-stop ratio of the roller is adjusted.

10. A clothes dryer, controlled by the clothes dryer control method as described in any one of claims 1-9, characterized in that, The clothes dryer includes: Organism; A roller is rotatably disposed within the machine body; A detection component is used to detect whether the load inside the drum is entangled; The control module is communicatively connected to the detection component, and the control module can control the rotation direction and speed of the roller according to the winding information detected by the detection component.

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