Drying apparatus, drying control method and device thereof

Abstract

The application discloses a drying equipment and a drying control method and device thereof, and the control method comprises the following steps: acquiring a load weight parameter of a load to be dried; acquiring real-time temperature and humidity parameters of a drying air path; determining a moisture content change curve according to the real-time temperature and humidity parameters; determining a load type parameter of the load to be dried according to the moisture content change curve and the load weight parameter; determining a target drying program according to the load weight parameter and the load type parameter, and performing a drying operation according to the target drying program. The application accurately identifies the load type of the load to be dried by using the moisture content change and the load weight, and automatically matches the drying program according to the load type and the load weight, which is favorable for improving the drying effect and improving the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drying machines, in particular to a drying equipment and a drying control method and device thereof. BACKGROUND

[0002] With the rapid development of science and technology and the increasing improvement of people's living standards, drying machines have become indispensable equipment in people's production and life, and clothes drying equipment provides great convenience for our life.

[0003] In the prior art, the user usually needs to manually select a drying program or directly select a recommended program before using the drying equipment, which has the following problems: the drying equipment lacks effective program setting strategies, the user needs to accurately judge the clothes when manually selecting the program, and once the program is determined, the drying operation is performed with constant air inlet temperature, drum rotation speed and drying time for different types of loads, which may cause wrinkles, wear or over-drying of special material clothes, resulting in damaged clothes and affecting user experience. SUMMARY

[0004] The present application provides a drying equipment and a drying control method and device thereof to efficiently and accurately identify the load type and load weight of the load to be dried, and automatically match the drying program according to the load type and load weight, which is beneficial to improve the drying effect.

[0005] In a first aspect, the present application provides a drying control method of a drying equipment, comprising the following steps:

[0006] obtaining a load weight parameter of a load to be dried;

[0007] obtaining a real-time temperature and humidity parameter of a drying air path;

[0008] determining a moisture content change curve according to the real-time temperature and humidity parameter;

[0009] determining a load type parameter of the load to be dried according to the moisture content change curve and the load weight parameter;

[0010] determining a target drying program according to the load weight parameter and the load type parameter, and performing a drying operation according to the target drying program.

[0011] In a second aspect, the embodiments of the present application further provide a drying control device for executing the drying control method, the device comprising: a load weight acquisition module for acquiring a load weight parameter of a load to be dried; a temperature and humidity sensor for acquiring a real-time temperature and humidity parameter of a drying air path; a moisture content calculation module for determining a moisture content change curve according to the real-time temperature and humidity parameter; a load type acquisition module for determining a load type parameter of the load to be dried according to the moisture content change curve and the load weight parameter; and a drying control module for determining a target drying program according to the load weight parameter and the load type parameter, and executing a drying operation according to the target drying program.

[0012] Optionally, the load weight acquisition module comprises a pressure sensor and a weight analysis unit; the pressure sensor is configured to acquire a real-time pressure difference of the drying air path; and the weight analysis unit is configured to store a preset weight-air volume relationship table, calculate a real-time air volume of the drying air path according to the real-time pressure difference, and perform table lookup on the preset weight-air volume relationship table according to the real-time air volume, and determine the load weight parameter according to a table lookup result.

[0013] In a third aspect, the embodiments of the present application further provide a drying device, comprising: a drying barrel body, a fan, a condenser, an evaporator, a filter screen, an expansion valve, a compressor, and the drying control device; and the temperature and humidity sensor of the drying control device is arranged at an air outlet side of the drying barrel body.

[0014] The drying device and the drying control device provided by the embodiments of the present application execute the drying control method, which acquires a load weight parameter of a load to be dried, acquires a real-time temperature and humidity parameter of a drying air path, and determines a moisture content change curve according to the real-time temperature and humidity parameter; determines a load type parameter of the load to be dried in combination with the moisture content change curve and the load weight parameter, and then determines a target drying program according to the load weight parameter and the load type parameter, and executes a drying operation according to the target drying program, thereby solving the problem that the existing drying device lacks effective program setting strategies and affects the drying quality, and being conducive to improving the drying effect and enhancing the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a flowchart of a drying control method provided by the first embodiment of the present application;

[0016] Figure 2 is a flowchart of another drying control method provided by the first embodiment of the present application;

[0017] Figure 3 is a schematic diagram of a P-Q curve of a drying device provided by the first embodiment of the present application;

[0018] Figure 4is a flow chart of another drying control method provided by Embodiment One of the present application;

[0019] Figure 5 is a structural schematic diagram of a drying control device provided by Embodiment Two of the present application;

[0020] Figure 6 is a structural schematic diagram of a drying device provided by Embodiment Three of the present application. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely intended to explain the present application, rather than limit the present application. In addition, it should be noted that only the parts related to the present application are shown in the accompanying drawings for the convenience of description, rather than all the structures.

[0022] Embodiment One

[0023] Figure 1 is a flow chart of a drying control method provided by Embodiment One of the present application. The present embodiment can be applied to the application scenario of determining the type of the load to be dried by the moisture content change. The method can be executed by a drying device configured with specific functional modules.

[0024] The drying device is also referred to as a dryer. According to different use scenarios of the drying device, the drying device can be used to dry and dehumidify different types of loads to be dried. Typically, the load to be dried can be textiles such as clothes, bed sheets, and covers, or tableware such as feeding bottles, bowls, chopsticks, and forks. The specific type thereof is not limited, and the present application only takes clothes as an example to illustrate the working process. In actual use, the load to be dried is placed in the drying barrel body of the drying device. The drying air path composed of multiple functional modules such as a fan, a condenser, and an evaporator transports drying air to the load to be dried placed in the drying barrel body.

[0025] As shown in Figure 1 , the drying control method specifically includes the following steps:

[0026] Step S1: Obtain the load weight parameter of the load to be dried.

[0027] The load weight parameter can be the moisture weight of the load in the drying barrel body, or the net weight value in the dried state.

[0028] Step S2: Obtain the real-time temperature and humidity parameter of the drying air path.

[0029] The drying air path is the transmission path of the drying air in the drying device. A temperature and humidity sensor can be arranged at any position in the drying air path. The real-time temperature and humidity parameter is the real-time temperature value and relative humidity value of the drying air collected by the temperature and humidity sensor.

[0030] Specifically, after the drying equipment is started, the drying air blown by the fan enters the drying barrel body, and after being processed by the evaporator and the condenser, the moisture content of the drying air gradually decreases until the drying is completed. During the drying process, the temperature and humidity sensor can sample the real-time temperature and relative humidity of the drying air at the preset sampling time to obtain real-time temperature and humidity parameters.

[0031] According to one specific embodiment of the present application, the real-time temperature and humidity parameters can be the real-time temperature and relative humidity values of the drying air outlet, wherein the drying air outlet can be the air outlet of the drying barrel body.

[0032] Step S3: determining the moisture content change curve according to the real-time temperature and humidity parameters.

[0033] The moisture content change curve represents the curve of the moisture content of the load changing with time during the drying process. The moisture content can be calculated from the real-time temperature and humidity parameters, and the specific method will be described in subsequent embodiments.

[0034] Step S4: determining the load type parameter of the load to be dried according to the moisture content change curve and the load weight parameter.

[0035] The load type parameter can be the material type of the load to be dried, for example, for a clothes drying equipment, the load type parameter of the load to be dried includes cotton, silk, cashmere, etc.

[0036] Step S5: determining the target drying program according to the load weight parameter and the load type parameter, and performing the drying operation according to the target drying program.

[0037] The target drying program is used to define the drying air volume, drying temperature, and drying time, etc. drying operation parameters.

[0038] Specifically, after the user places the load to be dried in the drying barrel body and starts the intelligent drying, the drying device starts to operate. The drying device first determines the load weight parameter of the load to be dried in the drying barrel body; because the heat transfer performance of different weights and different types of loads is different, the moisture content of the drying air outlet changes differently, for example, under the same drying parameters (such as drying air volume, drying temperature and drying time), the moisture content change of silk clothes is less than that of cotton and hemp clothes. By comparing the moisture content change curve under a certain weight with the pre-labeled moisture content change characteristics of different types of loads, the load type parameter of the load to be dried can be obtained. Finally, according to the load weight parameter and the load type parameter, a specific target drying program is selected, and the drying operation is performed according to the target drying program until the drying is completed, thereby solving the problem that the existing drying device lacks effective program setting strategy to affect the drying quality, and improving the drying effect and user experience.

[0039] Optionally, Figure 2 is a flowchart of another drying control method provided by Embodiment One of the present application, which illustrates a specific implementation of obtaining a load weight parameter on the basis of Figure 1 but is not a limitation of the above method.

[0040] As Figure 2 shown, the drying control method specifically includes the following steps:

[0041] Step S101: Obtain the real-time pressure difference of the drying air path.

[0042] The real-time pressure difference of the drying air path includes the pressure difference between the inlet and outlet of the evaporator, or the pressure difference between the inlet and outlet of the condenser.

[0043] Specifically, two pressure sensors can be used to collect the real-time pressures before and after the evaporator, and the real-time pressure difference can be calculated by calculating the difference between the real-time pressures collected by the two pressure sensors.

[0044] Step S102: Calculate the real-time air volume of the drying air path according to the real-time pressure difference.

[0045] The real-time air volume is the total volume of air sucked or blown out in the drying air path per unit time. The real-time air volume can be calculated according to the real-time air speed and the cross-sectional area of the air path.

[0046] Specifically, after obtaining the real-time pressure difference, the air speed can be calculated according to the real-time pressure difference, wherein the relationship between the air speed and the pressure difference satisfies: where P is the pressure difference, p is the air density, and v is the air speed. After obtaining the current air speed, the real-time air volume per unit time can be calculated in combination with the cross-sectional area of the drying barrel body.

[0047] Step S103: Obtain a preset weight-air volume relationship table, wherein the preset weight-air volume relationship table is a corresponding relationship between a calibrated air volume value and a preset weight value pre-calibrated.

[0048] Step S104: Look up the preset weight-air volume relationship table according to the real-time air volume, and determine the load weight parameter according to the lookup result.

[0049] Step S2: Obtain real-time temperature and humidity parameters of the drying air path.

[0050] Step S3: Determine the moisture content change curve according to the real-time temperature and humidity parameters.

[0051] Step S4: Determine the load type parameter of the load to be dried according to the moisture content change curve and the load weight parameter.

[0052] Optionally, determining the load type parameter of the load to be dried according to the moisture content change curve and the load weight parameter includes: matching the moisture content change curve in a moisture content change curve database according to the moisture content change curve and the load weight parameter, and determining the load type parameter of the load to be dried according to the matching result, wherein the moisture content change curve database is established based on the outflow moisture content of the calibration load type under the calibration weight.

[0053] The moisture content change curve database is a set of moisture content change curves under different calibration weights and different calibration load types, and each moisture content change curve is calibrated according to a unique set of outflow moisture content of the calibration weight and the calibration load type.

[0054] Step S5: Determine the target drying program according to the load weight parameter and the load type parameter, and perform the drying operation according to the target drying program.

[0055] Specifically, the above steps S101 to S104 provide a specific method for obtaining the load weight parameter of the load to be dried. For the drying equipment, the fan output performance is the same, and for different weights of the load, there will be different resistance curves, according to which the corresponding relationship between the real-time air volume of the drying air path and the load weight, i.e. the preset weight-air volume relationship table, can be established. Combined with the load weight parameter obtained by the above steps S101 to S104, the load type parameter of the load to be dried can be determined. Figure 2As shown, after obtaining the real-time air volume of the drying air path, the real-time air volume can be compared with the calibration air volume value in the preset weight air volume relationship table, and the load weight parameter corresponding to the current air volume is determined according to the comparison result. Further, the load type parameter can be determined based on the pre-calibration obtained humidity change curve database in combination with the load weight parameter and the humidity change curve. Finally, a specific target drying program is selected according to the load weight parameter and the load type parameter, and the drying operation is performed according to the target drying program until the drying is completed. Thus, the embodiment of the present application combines the air volume, obtains the load weight by the table lookup method, and matches the specific drying program in combination with the load weight and the load type, thereby solving the problem that the existing drying equipment lacks effective program setting strategy to affect the drying quality, which is beneficial to improve the drying effect and enhance the user experience.

[0056] Optionally, the preset weight air volume relationship table is obtained by determining at least one calibration air volume value according to at least one preset resistance curve, and the calibration air volume value corresponds to a preset weight value one by one; and establishing the preset weight air volume relationship table according to the calibration air volume value and the preset weight value.

[0057] The preset resistance curve can be a corresponding relationship between the pre-calibrated load resistance and the pressure drop or air volume under a specific load weight, and one preset resistance curve corresponds to one preset weight value one by one. The intersection between the preset resistance curve and the P-Q curve used to represent the performance of the fan is the calibration air volume value corresponding to the preset weight value.

[0058] Figure 3 is a schematic diagram of a P-Q curve of a drying equipment provided by the first embodiment of the present application.

[0059] In combination Figure 3 As shown, the P-Q curve A0 and the three preset resistance curves can be established by calibration, the P-Q curve A0 is the corresponding relationship curve between the pressure drop and the air volume of the drying equipment under zero load, and the three preset resistance curves include the first preset resistance curve A1, the second preset resistance curve A2 and the third preset resistance curve A3. The preset weight value of the load corresponding to the first preset resistance curve A1 can be 2 kg; the preset weight value of the load corresponding to the second preset resistance curve A2 can be 6 kg; and the preset weight value of the load corresponding to the third preset resistance curve A3 can be 8 kg. The intersection between the first preset resistance curve A1 and the P-Q curve is the first calibration air volume value Q1; the intersection between the second preset resistance curve A2 and the P-Q curve is the second calibration air volume value Q2; and the intersection between the third preset resistance curve A3 and the P-Q curve is the third calibration air volume value Q3. Accordingly, the preset weight air volume relationship table established includes the first calibration air volume value Q1 corresponding to the first preset weight value (for example, 2 kg), the second calibration air volume value Q2 corresponding to the second preset weight value (for example, 6 kg), and the third calibration air volume value Q3 corresponding to the third preset weight value (for example, 8 kg).

[0060] According to one specific embodiment of the present application, the drying control method comprises: comparing the real-time air volume Q with the calibrated air volume value, and determining the load weight parameter according to the comparison result.

[0061] Exemplarily, the preset weight-air volume relationship table comprises a first calibrated air volume value Q1 corresponding to a first preset weight value G1 (for example, 2 kg); a second calibrated air volume value Q2 corresponding to a second preset weight value G2 (for example, 6 kg); and a third calibrated air volume value Q3 corresponding to a third preset weight value G3 (for example, 8 kg), wherein the first calibrated air volume value Q1 is greater than the second calibrated air volume value Q2, and the second calibrated air volume value Q2 is greater than the third calibrated air volume value Q3.

[0062] After obtaining the real-time air volume Q of the drying air path, the real-time air volume Q is compared with the calibrated air volume value. If the real-time air volume Q is greater than the first calibrated air volume value Q1, it is determined that the load weight parameter G satisfies: G < G1; if the real-time air volume Q is less than or equal to the first calibrated air volume value Q1 and greater than the second calibrated air volume value Q2, it is determined that the load weight parameter G satisfies: G1≤G < G2; if the real-time air volume Q is less than or equal to the second calibrated air volume value Q2 and greater than the third calibrated air volume value Q3, it is determined that the load weight parameter G satisfies: G2≤G < G3; and if the real-time air volume Q is less than or equal to the third calibrated air volume value Q3, it is determined that the load weight parameter G satisfies: G≥G3.

[0063] Therefore, the load weight parameter determined by the table lookup method of the embodiment of the present application is a weight range value determined according to the preset weight value, which is beneficial to simplify the identification algorithm of the load weight and improve the drying program matching efficiency.

[0064] Figure 4 is a flowchart of another drying control method provided by the first embodiment of the present application, which is based on Figure 1 and exemplarily shows a specific embodiment of calculating the moisture content.

[0065] As Figure 4 shown, the moisture content change curve is determined according to the real-time temperature and humidity parameters, comprising the following steps:

[0066] Step S1: obtaining the load weight parameter of the load to be dried.

[0067] Step S301: obtaining the real-time dry-bulb temperature parameter and the real-time relative humidity parameter.

[0068] The real-time dry-bulb temperature parameter refers to a temperature value read from the dry-bulb temperature exposed to the drying air path, and the real-time humidity parameter refers to a relative humidity value read from the humidity sensor exposed to the drying air path. Both the real-time dry-bulb temperature parameter and the real-time humidity parameter are parameters obtained by the humidity sensor collecting the wet air in the drying air path.

[0069] Step S302: According to the real-time dry-bulb temperature parameter, the real-time saturation water vapor partial pressure is determined based on a preset saturation water vapor pressure algorithm.

[0070] Step S303: According to the real-time relative humidity parameter and the real-time saturation water vapor partial pressure, the actual water vapor partial pressure is determined.

[0071] Step S304: The real-time moisture content is determined according to the actual water vapor partial pressure.

[0072] Step S305: The moisture content change curve is determined according to the real-time moisture content.

[0073] Step S4: The load type parameter of the load to be dried is determined according to the moisture content change curve and the load weight parameter.

[0074] Step S5: The target drying program is determined according to the load weight parameter and the load type parameter, and the drying operation is performed according to the target drying program.

[0075] Specifically, the above steps S301 to S305 provide a specific method for calculating the moisture content according to the real-time temperature and humidity parameters. The moisture content refers to the content of water vapor in each kilogram of dry air in the wet air. When calculating the real-time moisture content, first, according to the real-time dry-bulb temperature parameter, the real-time saturation water vapor partial pressure value P WS is calculated by substituting the preset saturation water vapor pressure algorithm. The preset saturation water vapor pressure algorithm includes the Hyland-Wexler formula, and at different real-time dry-bulb temperature parameters, the saturation water vapor pressure algorithm corresponds to different mathematical expressions.

[0076] For example, when the real-time dry-bulb temperature parameter is between -100℃ and 0℃, the mathematical expression of the Hyland-Wexler formula is as shown in Formula One:

[0077]

[0078] C1=-5.674535E+03; C2=6.3925247E+00; C3=-9.6778430E-03; C4=6.2215701E-07; C5=2.0747825E-09; C6=-9.484024E-13; C7=4.1635019E+00.

[0079] For example, C1=-5.674535E+03 represents -5.674535*103,

[0080] C2=6.3925247E+00 represents 6.3925247*100,

[0081] The above formulas are expressed in a similar manner, and will not be listed one by one.

[0082] When the set range of the real-time dry-bulb temperature parameter is between 0℃-200℃, the mathematical expression of the Hyland-Wexler formula is shown in Formula Two:

[0083]

[0084] C8=-5.800220E+03; C9=1.3914993E+00; C 10 =-4.864023E-02; C 11 =4.1764768E-05; C 12 =-1.4452093E-08; C 13 =6.5459673E+00.

[0085] According to the above Formula One or Formula Two, the real-time saturation water vapor partial pressure value corresponding to the real-time dry-bulb temperature parameter is calculated, and the saturation water vapor partial pressure P WS and the real-time humidity parameter (i.e. the relative humidity value sampled by the humidity sensor) are substituted into the following Formula Three to calculate the actual water vapor partial pressure P W .

[0086]

[0087] wherein, is the real-time humidity parameter, i.e. the relative humidity value sampled by the humidity sensor.

[0088] Further, the standard atmospheric pressure of the area where the drying equipment is located is obtained, and the standard atmospheric pressure and the actual water vapor partial pressure are substituted into the following Formula Four to calculate the real-time moisture content:

[0089]

[0090] Wherein, W is real-time moisture content, k is adjustment coefficient, P is standard atmospheric pressure; P w is the actual partial pressure of water vapor.

[0091] It should be noted that the standard atmospheric pressure involved in the embodiments of the present application is the standard atmospheric pressure of the area where the drying equipment is located, and the value of the standard atmospheric pressure can change with the altitude of the area where the drying equipment is located, and the specific value of the standard atmospheric pressure is not limited here.

[0092] For example, the standard atmospheric pressure can be 101325Pa.

[0093] According to the above formula one to formula four, the real-time moisture content is calculated according to the collected real-time dry-bulb temperature parameter and real-time humidity parameter in the drying air path, the real-time moisture content change in the drying process is recorded to obtain a moisture content change curve, and the moisture content change curve can be used to determine the load type parameter, so as to match the characteristic target drying program.

[0094] Optionally, the drying control method further comprises: sending the load weight parameter and the load type parameter to the user terminal; receiving the drying setting instruction fed back by the user terminal; and determining the target drying program according to the drying setting instruction.

[0095] Specifically, the drying equipment can be configured with a communication module, after the drying equipment is started, the communication module is used to establish a communication connection between the drying equipment and the user terminal, and the load weight parameter and the load type parameter in the drying equipment are sent to the user terminal. The user can view the above-mentioned parameters through the preset application program configured by the user terminal, and set the drying program through the preset application program. The communication module receives the drying setting instruction fed back by the user terminal, and determines the target drying program according to the parameters in the drying setting instruction, improves the man-machine interaction performance through remote communication technology, and is beneficial to improve the intelligent degree and accuracy of the drying program selection, and improves the drying efficiency.

[0096] Embodiment two

[0097] The embodiments of the present application also provide a drying control device, and the drying control device provided by the embodiments of the present application can execute the drying control method provided by any of the embodiments of the present application, and has the corresponding function modules and beneficial effects of the execution method.

[0098] Figure 5 FIG. 1 is a structural schematic diagram of a drying control device provided by the second embodiment of the present application.

[0099] As Figure 5As shown, the drying control device 00 comprises: a load weight acquisition module 101 configured to acquire a load weight parameter of a load to be dried; a temperature and humidity sensor 102 configured to acquire a real-time temperature and humidity parameter of a drying air path; a moisture content calculation module 103 configured to determine a moisture content change curve according to the real-time temperature and humidity parameter; a load type acquisition module 104 configured to determine a load type parameter of the load to be dried according to the moisture content change curve and the load weight parameter; and a drying control module 105 configured to determine a target drying program according to the load weight parameter and the load type parameter, and perform a drying operation according to the target drying program.

[0100] According to one specific embodiment of the present application, the real-time temperature and humidity parameter can be a real-time temperature value and a relative humidity value of a drying air outlet, wherein the drying air outlet can be an air outlet of the drying barrel body.

[0101] Optionally, the load weight acquisition module 101 comprises a pressure sensor and a weight analysis unit; the pressure sensor is configured to acquire a real-time pressure difference of the drying air path; and the weight analysis unit is configured to store a preset weight-air volume relationship table, calculate a real-time air volume of the drying air path according to the real-time pressure difference, perform a table lookup on the preset weight-air volume relationship table according to the real-time air volume, and determine the load weight parameter according to a lookup result.

[0102] According to one specific embodiment of the present application, the pressure sensor is arranged at an air inlet side and an air outlet side of the evaporator respectively, and is configured to acquire a first pressure at the air inlet side and a second pressure at the air outlet side of the evaporator respectively, and determine a difference between the first pressure and the second pressure as the real-time pressure difference of the drying air path.

[0103] It should be noted that the pressure sensor can also be arranged at an air inlet side and an air outlet side of the condenser, or at other positions in the drying air path, which is not limited.

[0104] Optionally, the preset weight-air volume relationship table is acquired by: determining at least one calibration air volume value according to at least one preset resistance curve, the calibration air volume value corresponding to a preset weight value one by one; and establishing the preset weight-air volume relationship table according to the calibration air volume value and the preset weight value.

[0105] Optionally, the weight analysis unit is configured to compare the real-time air volume with the calibration air volume value, and determine the load weight parameter according to a comparison result, wherein the load weight parameter is a weight range determined according to the preset weight value.

[0106] For example, the preset weight-airflow relationship table includes a first preset weight value G1, a second preset weight value G2, and a third preset weight value G3, wherein G1, G2, and G3 satisfy: G1 < G2 < G3; the load weight parameter G and the first preset weight value G1, the second preset weight value G2, and the third preset weight value G3 satisfy any of the following relationships: G < G1; or, G1 ≤ G < G2; or, G2 ≤ ​​G < G3; or, G ≥ G3.

[0107] Optionally, the moisture content calculation module 103 is used to obtain real-time dry-bulb temperature parameters and real-time relative humidity parameters, determine the real-time saturated water vapor partial pressure based on the real-time dry-bulb temperature parameters and a preset saturated water vapor pressure algorithm, determine the actual water vapor partial pressure based on the real-time relative humidity parameters and the real-time saturated water vapor partial pressure, and determine the real-time moisture content based on the actual water vapor partial pressure.

[0108] Optionally, the load type parameters of the load to be dried are determined based on the moisture content change curve and the load weight parameters, including: matching the curves in the moisture content change curve database with the moisture content change curve and the load weight parameters, and determining the load type parameters of the load to be dried based on the matching results; wherein, the moisture content change curve database is established based on the outlet air moisture content of the calibrated load type under the calibrated weight.

[0109] Optionally, the drying control device 00 further includes a communication module, which is used to connect to a user terminal, send load weight parameters and load type parameters to the user terminal, and receive drying setting instructions from the user terminal, so that the drying control module 105 determines the target drying program according to the drying setting instructions.

[0110] Example 3

[0111] This invention also provides a drying device, which is equipped with the drying control device described above. The device is used to execute the drying control method provided in any of the above embodiments and has specific functional modules and beneficial effects required to execute the method.

[0112] Figure 6 This is a schematic diagram of the structure of a drying device provided in Embodiment 3 of the present invention.

[0113] like Figure 6 As shown, the drying equipment 100 includes: a drying drum body 1, a fan 2, a condenser 3, an evaporator 4, a filter screen 5, a capillary tube or expansion valve 6, a compressor 7, and the aforementioned drying control device 00; the temperature and humidity sensor 8 of the drying control device 00 is located on the air outlet side of the drying drum body 1.

[0114] According to one specific embodiment of the present application, the pressure sensor 9 of the drying control device 00 is arranged at the air inlet side and the air outlet side of the evaporator 4, and the pressure sensor 9 is used to collect pressure to calculate real-time pressure difference.

[0115] Specifically, in one air circulation, the air is heated by the condenser 3, then is delivered into the drying barrel body 1 by the fan 2, exchanges heat with the clothes in the barrel, removes lint through the filter screen 5, is cooled and dehumidified by the evaporator 4, and then enters the condenser to complete one air circulation.

[0116] On the refrigerant side, the high-temperature refrigerant discharged by the compressor 7 is cooled by the condenser 3, then enters the evaporator 4 through the capillary or expansion valve 6, and then is heated by the evaporator 4 and returns to the compressor 7.

[0117] In summary, the drying equipment and the drying control device provided by the embodiment of the present application execute the drying control method, the method obtains the load weight parameter of the load to be dried, obtains the real-time temperature and humidity parameter of the drying air path, and determines the moisture content change curve according to the real-time temperature and humidity parameter; the load type parameter of the load to be dried is determined by combining the moisture content change curve and the load weight parameter, and then the target drying program is determined according to the load weight parameter and the load type parameter, and the drying operation is performed according to the target drying program, which solves the problem that the existing drying equipment lacks effective program setting strategy to affect the drying quality, and is beneficial to improve the drying effect and enhance the user experience.

[0118] Note that the above is only the preferred embodiment of the present application and the technical principle applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A drying control method for a drying device, characterized in that, Includes the following steps: Obtain the load weight parameters of the load to be dried; Obtain real-time temperature and humidity parameters of the drying air path; The moisture content change curve is determined based on the real-time temperature and humidity parameters. The load type parameters of the load to be dried are determined based on the moisture content change curve and the load weight parameters. The target drying program is determined based on the load weight parameter and the load type parameter, and the drying operation is performed according to the target drying program. Obtaining the load weight parameters of the load to be dried includes the following steps: Obtain the real-time pressure difference in the drying air path; The real-time air volume of the drying air path is calculated based on the real-time pressure difference. Obtain a preset weight-air volume relationship table, which is a pre-calibrated correspondence between calibrated air volume values ​​and preset weight values; The load weight parameter is determined by looking up the preset weight-air volume relationship table based on the real-time air volume and the table lookup result. The load type parameter refers to the material type of the load to be dried.

2. The drying control method according to claim 1, characterized in that, Obtain the preset weight-airflow relationship table, including: At least one calibrated air volume value is determined based on at least one preset resistance curve, and the calibrated air volume value corresponds one-to-one with the preset weight value; The preset weight-air volume relationship table is established based on the calibrated air volume value and the preset weight value.

3. The drying control method according to claim 1, characterized in that, The load weight parameters are determined by looking up the preset weight-airflow relationship table based on the real-time airflow and the table lookup result, including: The real-time air volume is compared with the calibrated air volume value, and the load weight parameter is determined based on the comparison result; The load weight parameter is a weight range determined based on the preset weight value.

4. The drying control method according to claim 1, characterized in that, Determining the moisture content change curve based on the real-time temperature and humidity parameters includes the following steps: Obtain real-time dry-bulb temperature and real-time relative humidity parameters; Based on the real-time dry-bulb temperature parameters, the real-time saturated water vapor partial pressure is determined using a preset saturated water vapor pressure algorithm. The actual partial pressure of water vapor is determined based on the real-time relative humidity parameter and the real-time saturated water vapor partial pressure. The real-time moisture content is determined based on the actual partial pressure of water vapor. The moisture content change curve is determined based on the real-time moisture content.

5. The drying control method according to claim 1, characterized in that, The load type parameters of the load to be dried are determined based on the moisture content change curve and the load weight parameters, including: Based on the moisture content change curve and the load weight parameter, the curves in the moisture content change curve database are matched, and the load type parameter of the load to be dried is determined based on the matching result. The moisture content variation curve database is established based on the outlet air moisture content under calibrated weight and calibrated load type.

6. The drying control method according to any one of claims 1-5, characterized in that, It also includes the following steps: Send the load weight parameters and the load type parameters to the user terminal; Receive the drying setting command from the user terminal; The target drying program is determined according to the drying setting instructions.

7. A drying control device, characterized in that, The apparatus for performing the drying control method according to any one of claims 1-6, the apparatus comprising: The load weight acquisition module is used to acquire the load weight parameters of the load to be dried; Temperature and humidity sensors are used to acquire real-time temperature and humidity parameters of the drying air path; A moisture content calculation module is used to determine the moisture content change curve based on the real-time temperature and humidity parameters. The load type acquisition module is used to determine the load type parameters of the load to be dried based on the moisture content change curve and the load weight parameters. The drying control module is used to determine the target drying program based on the load weight parameter and the load type parameter, and to execute the drying operation according to the target drying program; The load weight acquisition module includes a pressure sensor and a weight analysis unit; The pressure sensor is used to obtain the real-time pressure difference in the drying air path; The weight analysis unit is used to store a preset weight-airflow relationship table, calculate the real-time airflow of the drying air path based on the real-time pressure difference, look up the preset weight-airflow relationship table based on the real-time airflow, and determine the load weight parameter based on the lookup result. The load type parameter refers to the material type of the load to be dried.

8. A drying device, characterized in that, include: The drying drum body, fan, condenser, evaporator, filter screen, compressor, and drying control device as described in claim 7; The temperature and humidity sensor of the drying control device is located on the air outlet side of the drying drum body.

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