衣物烘干设备控制方法及衣物烘干设备

Abstract

This invention discloses a control method for a clothes drying device, comprising: acquiring an initial heating temperature T0; detecting an initial humidity value S0; determining an initial wind speed based on the initial humidity value S0, controlling the operation of a fan, and controlling the operation of an electric heating element based on the initial heating temperature T0, maintaining the operation for a time t1, and then detecting the humidity value S1 again; adjusting the heating temperature based on the humidity value S1. In this clothes drying device control method, humidity reflects the moisture content of the clothes, and the heating power of the electric heating element is determined based on the humidity value, thereby improving the clothes drying efficiency. It eliminates the need for manual operation by the user, making it convenient to use while improving control accuracy.

Description

Technical Field

[0001] This invention belongs to the technical field of clothing processing equipment, specifically, it relates to a control method for clothing drying equipment and clothing drying equipment. Background Technology

[0002] Although washing machines generally have a spin-drying function, the spun-dried clothes still contain some moisture and need to be air-dried to become completely dry. As people's living standards improve, the time required to air-dry clothes is insufficient to meet their needs, especially in northern winters and the rainy season in the south where clothes are difficult to dry. Therefore, clothes drying equipment has emerged.

[0003] Clothes drying equipment needs to provide sufficient heat to help evaporate moisture from the clothes. At the same time, ensuring sufficient contact between the clothes and heat can greatly accelerate the drying process. Furthermore, to avoid damaging the clothes during drying, the drying temperature needs to be controlled. Different materials require different drying temperatures, but current clothes drying equipment lacks precise heating control and cannot achieve temperature regulation.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0005] This invention addresses the technical problem that existing clothing drying equipment has low heating control precision and cannot achieve temperature regulation. It proposes a control method for clothing drying equipment that can solve the above problems.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0007] A method for controlling a clothes drying device, comprising:

[0008] Obtain the initial heating temperature T0;

[0009] Detect the initial humidity value S0;

[0010] The initial wind speed is determined based on the initial humidity value S0, the fan is controlled to run, and the electric heating tube is controlled to run based on the initial heating temperature T0. After running for a time t1, the humidity value S1 is detected again.

[0011] Adjust the heating temperature according to the humidity value S1.

[0012] Furthermore, in the step of adjusting the heating temperature according to the humidity value S1, when the humidity value S1 is greater than the first set threshold, the heating temperature is increased in increments of 5% to 15%.

[0013] Furthermore, it also includes a step of detecting the temperature HT1 near the clothing. When the temperature HT1 is greater than the first temperature limit and less than the second temperature limit, the heating temperature is reduced.

[0014] When the temperature HT1 is not less than the second temperature limit, turn off the electric heating element;

[0015] The first temperature limit is less than the second temperature limit.

[0016] Furthermore, in the step of reducing the heating temperature, the heating temperature is reduced in increments of 1% to 5%.

[0017] Furthermore, in the step of reducing the heating temperature, when the temperature HT1 is not greater than the set limit, the current heating temperature is maintained.

[0018] Furthermore, after increasing the heating temperature, the system also includes periodically detecting the humidity value of the clothing. When the humidity value drops to no more than a second set threshold, the heating temperature is restored to the initial power, wherein the second set threshold is less than the first set threshold.

[0019] Furthermore, in the step of adjusting the heating temperature according to the humidity value S1, when the humidity value S1 is not greater than the first set threshold, the heating temperature is increased in increments of 1% to 5%.

[0020] Furthermore, in the step of obtaining the initial heating temperature T0, the set temperature is automatically obtained by detecting the material of the clothing, or the set temperature input by the user, or the system default temperature.

[0021] Furthermore, it also includes a step of acquiring an image of the clothing, and searching for the material of the clothing locally or online based on the image, automatically obtaining the set temperature corresponding to the material, and saving the image, material, and set temperature of the clothing locally after the material of the clothing is found online.

[0022] This invention also proposes a clothes drying device, comprising:

[0023] The main body has a drying chamber inside, and the main body has an opening that communicates with the drying chamber. An air inlet is provided on the lower side of the main body.

[0024] A cover is provided at the opening to close or open the drying chamber, and an air outlet is provided on the cover.

[0025] A support net for supporting clothing, the support net having mesh openings to allow airflow;

[0026] An infrared detection element, which is fixed on the inner wall of the cover or the inner wall of the body, is used to detect the temperature near the clothing.

[0027] A humidity sensor, which is fixed on the inner wall of the cover or the inner wall of the body, is used to detect humidity;

[0028] The clothes drying equipment also includes the control method described in any of the preceding items.

[0029] Compared with the prior art, the advantages and positive effects of the present invention are:

[0030] The clothing drying equipment control method of this invention uses humidity, which reflects the moisture content of the clothes, to determine the heating power of the electric heating element, thereby improving the drying efficiency. It eliminates the need for manual operation by the user, making it convenient to use while also improving control precision.

[0031] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic block diagram of one embodiment of the clothes drying equipment proposed in this invention;

[0034] Figure 2 This is a flowchart illustrating the principle of one embodiment of the clothing drying method proposed in this invention. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0036] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Example 1

[0039] To address the technical problem of low heating control accuracy and inability to achieve temperature regulation in existing clothing drying equipment, this embodiment proposes a control method for clothing drying equipment. This method can be applied to washing machines, dryers, or other electrical appliances involving heating functions, providing high-precision heating functions, shortening heating time, and improving user experience.

[0040] The clothes drying equipment control method in this embodiment will be combined with, for example, Figure 1 Taking the clothes drying equipment shown as an example, this paper explains in detail the control principle of the control method of this clothes drying equipment and the resulting technical effects.

[0041] The clothes drying equipment includes a main body 11, a cover 12, a support net 13, an infrared detection element 14, and a humidity sensor 15. The main body 11 has a drying chamber 110 inside, and an opening 111 communicating with the drying chamber 110 is provided on the main body 11. An air inlet 112 is also provided on the main body 11.

[0042] The cover 12 is provided at the opening 111 for closing or opening the drying chamber 110, and the cover 12 is provided with an air outlet 121.

[0043] The support net 13 is used to support the clothes. Generally, the support net 13 is placed horizontally and has mesh holes to allow airflow. The clothes to be dried are placed on top of the support net 13. The airflow enters from one side of the support net 13, passes through the clothes, and exits from the other side of the support net 13, which can remove the moisture from the clothes and achieve the purpose of drying.

[0044] Infrared detection element 14 is fixed on the inner wall of cover 12 or the inner wall of body 11 to detect the temperature near the clothing. Since different clothing materials have different temperature tolerances, infrared detection element 14 is set to detect the temperature near the clothing in order to prevent damage to the clothing. When the temperature exceeds the threshold, protective measures are implemented to protect the clothing.

[0045] The humidity sensor 15 can be fixed on the inner wall of the cover 12 or on the inner wall of the body 11 to detect the humidity value in the drying chamber 110.

[0046] Understandably, this clothes drying equipment should also include a control module, electric heating element, and fan. These components are... Figure 1 (Not shown in the diagram.) The infrared detection element 14, humidity sensor 15, electric heating element, and fan should be connected to the control module to send detection parameters to the control module or to receive control from the control module.

[0047] The working principle of this clothes drying equipment is as follows: When the equipment is turned on, the electric heating element and the fan are activated. The electric heating element heats the surrounding air, and the fan drives the external airflow to enter through the air inlet 11. Under the action of air pressure, the high-temperature gas passes through the clothes to be dried, taking away the moisture on the clothes. The high-humidity gas is discharged from the air outlet 121, thus achieving the purpose of drying.

[0048] Based on the temperature distribution characteristics of airflow, high-temperature airflow rises and low-temperature airflow sinks. In this design, the air inlet 112 is preferably located below the air outlet 121. The air blown onto the clothes is high-temperature gas, which, according to its physical properties, has an upward internal force. Therefore, it can help the high-temperature airflow pass through the clothes, thereby achieving the invention's objective of improving drying efficiency.

[0049] Based on the above-mentioned clothes drying equipment, such as Figure 2 As shown, the control method for the clothes drying equipment in this embodiment includes:

[0050] Obtain the initial heating temperature T0;

[0051] Detect the initial humidity value S0;

[0052] The initial wind speed is determined based on the initial humidity value S0, the fan is controlled to run, and the electric heating tube is controlled to run based on the initial heating temperature T0. After running for a time t1, the humidity value S1 is detected again.

[0053] Adjust the fan speed and / or heating temperature according to the humidity value S1.

[0054] The initial heating temperature T0 is the target heating temperature during initial heating. The initial heating temperature T0 can be the default value stored in the clothes drying equipment, the input value that the user sets each time, the setting value when used last time, or the suggested value obtained by the clothes drying equipment after a series of judgments.

[0055] The humidity value reflects the moisture content of the clothes. This control method determines the fan speed and the heating power of the electric heating element based on the humidity value, thereby improving the drying efficiency of clothes. Furthermore, this method requires no manual operation from the user, making it convenient to use while improving control accuracy.

[0056] Understandably, the higher the humidity level, the greater the heating power of the electric heating element, in order to achieve the purpose of rapid drying.

[0057] After the clothes are placed and the device is started, in this embodiment, it is preferable that the fan first runs at maximum wind speed for a time t2, for example, t2 can be a value that is not limited to 15s. The humidity sensor 15 records the initial humidity value and sends it back to the control module. Then the electric heating element is activated and runs for t1 according to the user-set temperature value. After t1, the humidity value is detected again (for a second determination of the moisture content of the clothes). t1 can be a value that is not limited to 10min.

[0058] In the step of adjusting the heating temperature according to the humidity value S1, when the humidity value S1 is greater than the first set threshold, the heating temperature is increased in increments of 5% to 15%.

[0059] The first set threshold is a percentage greater than 0 and less than 1. For example, the first set threshold can be 50%. When the humidity value S1 is greater than the first set threshold, it is determined that the moisture content of the clothes is high, and the heating temperature is increased in increments of 10% to improve drying efficiency. That is, when the initial heating temperature T0 is 50℃, the adjusted heating temperature is 55℃.

[0060] By controlling the adjustment range of the heating temperature, it is possible to prevent the increase from being too large, thus avoiding damage to the clothes due to high temperature, while also improving the drying efficiency.

[0061] In this embodiment, the adjustment range can preferably be determined based on the humidity value. The more water the clothing contains, the more water molecules can prevent local high temperatures in the clothing. Therefore, the humidity value can be further subdivided into several levels. The higher the humidity value, the larger the step size of the heating temperature increase in the step of adjusting the heating temperature according to the humidity value S1.

[0062] Since the energy of heating can be accumulated, in order to prevent heat accumulation in local areas, which could lead to excessively high local temperatures and damage to clothing, this embodiment also includes a step of detecting the temperature HT1 near the clothing. When the temperature HT1 is greater than a first temperature limit and less than a second temperature limit, the heating temperature is reduced.

[0063] The first temperature limit is less than the second temperature limit, and both the first and second temperature limits are greater than 0.

[0064] The first temperature limit is generally higher than the heating temperature.

[0065] In this embodiment, the infrared detection element 14 scans in real time to detect the temperature distribution in the space, determine the temperature field distribution, prevent heat accumulation in local areas near clothing and sudden temperature rise, and ensure that the user's clothing does not exceed the set temperature threshold.

[0066] When the temperature HT1 is not less than the second temperature limit, it is considered to seriously threaten the safety of the clothing, and the electric heating element will be turned off.

[0067] After the electric heating element is turned off, the fan needs to run continuously for a set time t3 (e.g., 2 minutes) to cool down. After the cooling is completed, a fault alarm can be triggered.

[0068] Because of localized overheating, the heating temperature is reduced in increments of 1% to 5% during the cooling process. While the localized temperature exceeds the limit, the extent of the overheating is small. Therefore, by gradually reducing the temperature, drying efficiency is improved while ensuring the safety of the clothes.

[0069] Due to localized overheating, during the step of reducing the heating temperature, if the temperature HT1 is not greater than the set limit, it is considered that there is no longer any threat to the clothing, and the current heating temperature is maintained.

[0070] In the step of adjusting the heating temperature according to the humidity value S1, after increasing the heating temperature, the step also includes periodically detecting the humidity value of the clothing. When the humidity value drops to no more than the second set threshold, the heating temperature is restored to the initial power, wherein the second set threshold is less than the first set threshold.

[0071] In the step of adjusting the heating temperature based on the humidity value S1, when the humidity value S1 is not greater than the first set threshold, that is, the humidity is decreasing rapidly and the rate of change is large, it is determined that the moisture content of the clothing is low, and the heating temperature is increased in increments of 1% to 5%. In other words, the increase in heating temperature is reduced, so that the temperature increases slowly and steadily, preventing sudden local temperature rises that could lead to uncontrollable damage to the clothing.

[0072] In this embodiment, the fan is preferably a PWM speed-controlled fan, and the fan speed must meet the requirement of being able to carry all the heat generated by the electric heating module.

[0073] When adjusting the fan speed, the fan can operate at the default PWM setting. The PWM chip sends pulse waveforms to adjust the current fan speed. If the current temperature needs to be adjusted, the heating function needs to be turned on, and the user can adjust the desired temperature manually using the buttons.

[0074] This embodiment also includes the step of obtaining the actual temperature inside the drying chamber 110 and adjusting the fan speed according to the actual temperature. If the temperature does not reach the heating temperature, the fan speed is reduced accordingly, that is, the PWM value of the fan is reduced.

[0075] The fan speed can be reduced in steps of 30 r / min. If the temperature still cannot meet the heating temperature, the fan speed will continue to decrease until it reaches the minimum value.

[0076] When the temperature reaches the heating value, if the temperature change within the set time period is ±2℃, the PWM value does not need to be changed, and the fan maintains its current working state.

[0077] If the temperature change exceeds ±2℃ within the set time period, the fan speed will be adjusted according to the PID fuzzy algorithm and compensation logic to stabilize the temperature change within ±2℃. This solution can provide a constant temperature environment for drying and improve temperature control accuracy.

[0078] In the step of obtaining the initial heating temperature T0, the set temperature is automatically obtained by detecting the material of the clothing, or the set temperature input by the user, or the system default temperature.

[0079] When users place clothes to be dried, if they are unsure about the fabric, they can activate the interconnected mode. The system will then compare the photos with existing database files and the shopping platform to display detailed clothing information, along with a voice prompt explaining the fabric type and suggesting the appropriate drying temperature. With the interconnected function enabled, the system automatically records the user's clothing information. The next time the clothes are placed, the system will remember and display the previously set drying temperature; simply click to run. Users can freely modify the settings during this process, or manually input clothing information and take photos for storage.

[0080] Therefore, it also includes the step of acquiring an image of the clothing, and searching for the material of the clothing locally or through the network based on the image, automatically obtaining the set temperature corresponding to the material, and saving the image, material and set temperature of the clothing locally after the material of the clothing is found through the network search.

[0081] Example 2

[0082] This embodiment proposes a clothes drying device, such as... Figure 1As shown, it includes a body 11, a cover 12, a support net 13, an infrared detection element 14, and a humidity sensor 15. The body 11 has a drying chamber 110 inside, an opening 111 communicating with the drying chamber 110, and an air inlet 112.

[0083] The cover 12 is provided at the opening 111 for closing or opening the drying chamber 110, and the cover 12 is provided with an air outlet 121.

[0084] The support net 13 is used to support the clothes. Generally, the support net 13 is placed horizontally and has mesh holes to allow airflow. The clothes to be dried are placed on top of the support net 13. The airflow enters from one side of the support net 13, passes through the clothes, and exits from the other side of the support net 13, which can remove the moisture from the clothes and achieve the purpose of drying.

[0085] Infrared detection element 14 is fixed on the inner wall of cover 12 or the inner wall of body 11 to detect the temperature near the clothing. Since different clothing materials have different temperature tolerances, infrared detection element 14 is set to detect the temperature near the clothing in order to prevent damage to the clothing. When the temperature exceeds the threshold, protective measures are implemented to protect the clothing.

[0086] The humidity sensor 15 can be fixed on the inner wall of the cover 12 or on the inner wall of the body 11 to detect the humidity value in the drying chamber 110.

[0087] Understandably, this clothes drying equipment should also include a control module, electric heating element, and fan. These components are... Figure 1 (Not shown in the diagram.) The infrared detection element 14, humidity sensor 15, electric heating element, and fan should be connected to the control module to send detection parameters to the control module or to receive control from the control module.

[0088] The working principle of this clothes drying equipment is as follows: When the equipment is turned on, the electric heating element and the fan are activated. The electric heating element heats the surrounding air, and the fan drives the external airflow to enter through the air inlet 112. Under the action of air pressure, the high-temperature gas passes through the clothes to be dried, taking away the moisture on the clothes. The high-humidity gas is discharged from the air outlet 121, thus achieving the purpose of drying.

[0089] Based on the temperature distribution characteristics of airflow, high-temperature airflow rises and low-temperature airflow sinks. In this design, the air inlet 112 is preferably located below the air outlet 121. The air blown onto the clothes is high-temperature gas, which, according to its physical properties, has an upward internal force. Therefore, it can help the high-temperature airflow pass through the clothes, thereby achieving the invention's objective of improving drying efficiency.

[0090] An air inlet 112 can be formed on the side wall of the main body 11, near the lower end, below the support net 13. An air outlet 121 is formed on the cover 12, above the support net 13. External airflow is drawn into the drying chamber 110 through the air inlet 112, heated by the electric heating module, flows upward through the support net 13, and is then discharged through the air outlet 121.

[0091] In this embodiment, multiple infrared detection elements 14 are preferably provided, which can detect the temperature of various parts of the clothing from all directions and prevent blind spots in detection.

[0092] The humidity sensor 15 is preferably disposed on the inner wall of the cover 12, near the air outlet 121.

[0093] This clothing drying equipment also includes the control method described in Example 1, which can be found in Example 1 and will not be repeated here.

[0094] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by the present invention.

Claims

1. A control method for a clothes drying device, characterized in that, include: Obtain the initial heating temperature T0; Detect the initial humidity value S0; The initial wind speed is determined based on the initial humidity value S0, the fan is controlled to run, and the electric heating tube is controlled to run based on the initial heating temperature T0. After running for a time t1, the humidity value S1 is detected again. Adjust the heating temperature according to the humidity value S1; In the step of adjusting the heating temperature according to the humidity value S1, when the humidity value S1 is greater than the first set threshold, the heating temperature is increased in increments of 5% to 15%. In the step of adjusting the heating temperature according to the humidity value S1, when the humidity value S1 is not greater than the first set threshold, the heating temperature is increased in increments of 1% to 5%.

2. The control method for a clothes drying device according to claim 1, characterized in that, It also includes a step of detecting the temperature HT1 near the clothing. When the temperature HT1 is greater than the first temperature limit and less than the second temperature limit, the heating temperature is reduced. When the temperature HT1 is not less than the second temperature limit, turn off the electric heating element; The first temperature limit is less than the second temperature limit.

3. The control method for a clothes drying equipment according to claim 1, characterized in that, In the step of reducing the heating temperature, the heating temperature is reduced in increments of 1% to 5%.

4. The control method for a clothes drying equipment according to claim 3, characterized in that, In the step of reducing the heating temperature, when the temperature HT1 is not greater than the set limit, the current heating temperature is maintained.

5. The control method for a clothes drying equipment according to claim 1, characterized in that, After increasing the heating temperature, the system also includes periodically detecting the humidity value of the clothing. When the humidity value drops to no more than a second set threshold, the heating temperature is restored to the initial power. The second set threshold is less than the first set threshold.

6. The control method for a clothes drying device according to any one of claims 1-5, characterized in that, In the step of obtaining the initial heating temperature T0, the set temperature is automatically obtained by detecting the material of the clothing, or the set temperature input by the user, or the system default temperature.

7. The control method for a clothes drying equipment according to claim 6, characterized in that, It also includes the step of acquiring an image of the clothing, and searching for the material of the clothing locally or online based on the image, automatically obtaining the set temperature corresponding to the material, and saving the image, material and set temperature of the clothing locally after the material of the clothing is found online.

8. A clothes drying device, characterized in that, include: The main body has a drying chamber inside, and the main body has an opening that communicates with the drying chamber. An air inlet is provided on the lower side of the main body. A cover is provided at the opening to close or open the drying chamber, and an air outlet is provided on the cover. A support net for supporting clothing, the support net having mesh openings to allow airflow; An infrared detection element, which is fixed on the inner wall of the cover or the inner wall of the body, is used to detect the temperature near the clothing. A humidity sensor, which is fixed on the inner wall of the cover or the inner wall of the body, is used to detect humidity; The clothes drying equipment also includes the control method according to any one of claims 1-7.

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