Dryer and intelligent control method for dryer

Abstract

Provided in the present application are a dryer and an intelligent control method for a dryer. The dryer comprises: an internal chamber; an air supply assembly, wherein an air supply end of the air supply assembly is disposed towards the internal chamber; a temperature sensor, which is disposed inside the internal chamber, and is configured to measure the temperature of the internal chamber; and a control apparatus, which is respectively connected to the air supply assembly and the temperature sensor, and is configured to control the air supply assembly to operate in a first operating mode, and when the temperature of the internal chamber is greater than a first temperature threshold, controlling the air supply assembly to operate in a second operating mode, wherein first power of the air supply assembly in the first operating mode is greater than second power of the air supply assembly in the second operating mode. The first power of the air supply assembly in the first operating mode is greater than the second power of the air supply assembly in the second operating mode, such that the temperature of the internal chamber can be quickly increased; and after the temperature of the internal chamber reaches the first temperature threshold, the second power is used for heating and heat preservation, such that temperature fluctuations can be reduced, and a drying duration can be shortened.

Description

Dryer and intelligent control method of dryer Cross-reference to related applications

[0001] This application claims priority to Chinese Patent Application No. 202421520268.3, filed on June 28, 2024, entitled "Dryer", the entire contents of which are incorporated herein by reference.

[0002] This application claims priority to Chinese Patent Application No. 202411127265.8, filed on August 16, 2024, entitled "A dryer and an intelligent control method of a dryer", the entire contents of which are incorporated herein by reference.

[0003] This application claims priority to Chinese Patent Application No. 202421998337.1, filed on August 16, 2024, entitled "A control system of a dryer and a dryer", the entire contents of which are incorporated herein by reference.

[0004] This application claims priority to Chinese Patent Application No. 202411127260.5, filed on August 16, 2024, entitled "Dryer", the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0005] The present application relates to the technical field of dryers, in particular to a dryer and an intelligent control method of a dryer. BACKGROUND

[0006] At present, the user needs to input the working temperature and the working time before the dryer works. After the dryer reaches the working temperature, the dryer keeps the temperature at the set working temperature by intermittent working. The existing intermittent working mode has the problems of large temperature fluctuation and long drying time during working. If the temperature fluctuation is too large, the energy consumption of the working components of the dryer during the holding period will be higher, and the drying effect is not good enough. SUMMARY

[0007] The purpose of the present embodiment is to provide a dryer and an intelligent control method of a dryer, which can reduce the drying time of the dryer, reduce the energy consumption and drying time of the dryer.

[0008] In a first aspect, the present embodiment provides a dryer, comprising:

[0009] an inner chamber;

[0010] an air supply assembly, wherein an air supply end of the air supply assembly is arranged towards the inner chamber;

[0011] a temperature sensor arranged inside the inner chamber and configured to detect the temperature of the inner chamber.

[0012] The control device is connected with the air supply assembly and the temperature sensor respectively, and is configured to control the air supply assembly to operate in a first operation mode, and control the air supply assembly to operate in a second operation mode when the temperature of the inner chamber is greater than a first temperature threshold.

[0013] In a second aspect, the present application provides a control method of a drying machine, applied to the drying machine of the first aspect, and the method comprises:

[0014] controlling the air supply assembly to operate in a first operation mode;

[0015] controlling the air supply assembly to operate in a second operation mode when the temperature of the inner chamber detected by the temperature sensor is greater than a first temperature threshold;

[0016] the first power of the air supply assembly in the first operation mode is greater than the second power of the air supply assembly in the second operation mode.

[0017] In a third aspect, the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the steps of the method of the first aspect.

[0018] In a fourth aspect, the present application provides an electronic device, and the computer readable storage medium stores instructions, and the instructions make the computer execute the method of any one of the first aspect when the instructions are executed on the computer.

[0019] In the above implementation process, after the control device controls the air supply assembly to heat the temperature of the inner chamber to be greater than the first temperature threshold in the first operation mode, the air supply assembly operates in the second operation mode. The first power of the air supply assembly in the first operation mode is greater than the second power of the air supply assembly in the second operation mode, so that the temperature of the inner chamber can be quickly raised, and when the temperature of the inner chamber reaches the first temperature threshold, the second power is used for heating to reduce temperature fluctuation and reduce the drying time.

[0020] Other features and advantages of the present application will be described in the following description, or can be known or determined from the description without any doubt, or can be known from the implementation of the above-mentioned technology disclosed in the present application.

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described, and the accompanying drawings are as follows. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0023] Fig. 1 is a structural schematic diagram of the dryer provided by the present embodiment;

[0024] Fig. 2 is a connection schematic diagram of the dryer provided by the present embodiment;

[0025] Fig. 3 is a structural schematic diagram of the double-cavity dryer provided by the present embodiment;

[0026] Fig. 4 is another structural schematic diagram of the double-cavity dryer provided by the present embodiment;

[0027] Fig. 5 is an arrangement schematic diagram of the fan provided by the present embodiment;

[0028] Fig. 6 is a structural schematic diagram of the fan assembly provided by the present embodiment;

[0029] Fig. 7 is another connection schematic diagram of the dryer provided by the present embodiment;

[0030] Fig. 8 is another structural schematic diagram of the dryer provided by the present embodiment;

[0031] Fig. 9 is another structural schematic diagram of the dryer provided by the present embodiment;

[0032] Fig. 10 is another connection schematic diagram of the dryer provided by the present embodiment;

[0033] Fig. 11 is another structural schematic diagram of the dryer provided by the present embodiment;

[0034] Fig. 12 is another structural schematic diagram of the dryer provided by the present embodiment;

[0035] Fig. 13 is another connection schematic diagram of the dryer provided by the present embodiment;

[0036] Fig. 14 is another structural schematic diagram of the dryer provided by the present embodiment;

[0037] Fig. 15 is an installation schematic diagram of the air guide module provided by the present embodiment;

[0038] Fig. 16 is a driving schematic diagram of the air guide module provided by the present embodiment;

[0039] Fig. 17 is another structural schematic diagram of the dryer provided by the present embodiment;

[0040] Fig. 18 is another structural schematic diagram of the drying machine provided in the embodiment;

[0041] Fig. 19 is an installation schematic diagram of the exhaust fan provided in the embodiment;

[0042] Fig. 20 is a flow schematic diagram of the control method of the drying machine provided in the embodiment;

[0043] Fig. 21 is a temperature fluctuation schematic diagram of the inner chamber corresponding to the control method of the drying machine of the prior art provided in the embodiment;

[0044] Fig. 22 is a temperature fluctuation schematic diagram of the inner chamber corresponding to the control method of the drying machine provided in the embodiment;

[0045] Fig. 23 is a connection schematic diagram of the control system of the drying machine provided in the embodiment;

[0046] Fig. 24 is another connection schematic diagram of the control system of the drying machine provided in the embodiment;

[0047] Fig. 25 is another connection schematic diagram of the control system of the drying machine provided in the embodiment;

[0048] Fig. 26 is a connection schematic diagram of the first electric heating element control module or the second electric heating element control module provided in the embodiment;

[0049] Fig. 27 is another connection schematic diagram of the control system of the drying machine provided in the embodiment;

[0050] Fig. 28 is a connection schematic diagram of the first illumination lamp control module provided in the embodiment;

[0051] Fig. 29 is a connection schematic diagram of the second illumination lamp control module provided in the embodiment;

[0052] Fig. 30 is another connection schematic diagram of the control system of the drying machine provided in the embodiment;

[0053] Fig. 31 is a connection schematic diagram of the first ultraviolet lamp control module provided in the embodiment;

[0054] Fig. 32 is a connection schematic diagram of the second ultraviolet lamp control module provided in the embodiment;

[0055] Fig. 33 is another connection schematic diagram of the control system of the drying machine provided in the embodiment;

[0056] Fig. 34 is a connection schematic diagram of the first fan control module or the second fan control module provided in the embodiment;

[0057] Fig. 35 is another connection schematic diagram of the control system of the drying machine provided in the embodiment;

[0058] Fig. 36 is a connection diagram of a first temperature acquisition module according to an embodiment of the present application;

[0059] Fig. 37 is a connection diagram of a second temperature acquisition module according to an embodiment of the present application;

[0060] Fig. 38 is a connection diagram of a voltage conversion circuit according to an embodiment of the present application;

[0061] Fig. 39 is a connection diagram of a zero-crossing inspection circuit according to an embodiment of the present application.

[0062] Fig. 40 is a structural diagram of an electronic device according to an embodiment of the present application.

[0063] Label description: 1 - case; 11 - shell; 111 - exhaust hole; 112 - overflow space;

[0064] 2 - inner container; 21 - inner chamber; 22 - side wall member; 23 - barrier structure; 231 - through hole; 24 - storage layer;

[0065] 3 - air supply assembly; 31 - fan; 32 - electric heating element; 33 - swing frame; 331 - shaft joint; 34 - first driver; 35 - swing arm;

[0066] 41 - temperature sensor; 42 - humidity sensor; 43 - weight sensor; 44 - image sensor;

[0067] 5 - control device;

[0068] 6 - air guide module; 61 - air guide plate; 62 - mounting frame; 63 - second driver; 611 - first gear; 612 - second gear;

[0069] 7 - air exhaust fan;

[0070] 81 - processor; 82 - communication interface; 83 - memory; 84 - communication bus;

[0071] U1 - control module;

[0072] U2 - electric heating element control module; U21 - first electric heating element control module; U22 - second electric heating element control module;

[0073] U3 - ultraviolet lamp control module; U31 - first ultraviolet lamp control module; U32 - second ultraviolet lamp control module;

[0074] U4 - fan control module; U41 - first fan control module; U42 - second fan control module;

[0075] U5 - temperature acquisition module; U51 - first temperature acquisition module; U52 - second temperature acquisition module;

[0076] U6 - light control module; U61 - first light control module; U62 - second light control module;

[0077] R1 - first resistor; R2 - second resistor; R3 - third resistor; R4 - fourth resistor; R5 - fifth resistor; R6 - sixth resistor; R7 - seventh resistor; R8 - eighth resistor; R9 - ninth resistor; R10 - tenth resistor; R11 - eleventh resistor; R12 - twelfth resistor; R13 - thirteenth resistor; R14 - fourteenth resistor; R15 - fifteenth resistor; R16 - sixteenth resistor; R17 - seventeenth resistor; R18 - eighteenth resistor; R19 - nineteenth resistor; R20 - twentieth resistor; R21 - twenty-first resistor; R22 - twenty-second resistor; R23 - twenty-third resistor; R24 - twenty-fourth resistor; R25 - twenty-fifth resistor; R26 - twenty-sixth resistor; R27 - twenty-seventh resistor; R28 - twenty-eighth resistor;

[0078] lamp1 - first light; lamp2 - second light;

[0079] NTC1 - first thermistor; NTC2 - second thermistor;

[0080] L1 - first inductor; L2 - second inductor;

[0081] RF1 - fuse;

[0082] C1 - first capacitor; C2 - second capacitor; C3 - third capacitor; C4 - fourth capacitor; C5 - fifth capacitor; C6 - sixth capacitor; C7 - seventh capacitor;

[0083] E1 - first electrolytic capacitor; E2 - second electrolytic capacitor; E3 - third electrolytic capacitor;

[0084] Q1 - first triode; Q2 - second triode; Q3 - third triode; Q4 - fourth triode; Q5 - fifth triode; Q6 - sixth triode; Q7 - seventh triode; Q8 - eighth triode;

[0085] D1 - first diode; D2 - second diode; D3 - third diode; D4 - fourth diode; D5 - fifth diode; D6 - sixth diode; D7 - seventh diode; D8 - eighth diode; D9 - ninth diode; D10 - twelfth diode;

[0086] RLY1 - first relay; RLY2 - second relay; RLY3 - third relay;

[0087] T1 - first thyristor; T2 - second thyristor. DETAILED DESCRIPTION

[0088] The technical solutions in the embodiments will be described below with reference to the drawings in the embodiments.

[0089] It should be noted that similar reference numerals and letters refer to similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings. Meanwhile, in the description of the present application, the terms "first", "second", and the like are merely used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0090] Referring to FIG. 1 and FIG. 2, the present embodiment provides a drying machine, comprising:

[0091] The machine case 1 is provided;

[0092] The inner chamber 21 is provided in the machine case 1;

[0093] The air supply assembly 3 is provided with an air supply end facing the inner chamber 21;

[0094] The temperature sensor 41 is provided inside the inner chamber 21 and is used to detect the temperature of the inner chamber 21;

[0095] The control device 5 is connected with the air supply assembly 3 and the temperature sensor 41 respectively, and is used to control the air supply assembly 3 to operate in a first working mode; when the temperature of the inner chamber 21 is greater than a first temperature threshold, the control device 5 controls the air supply assembly 3 to operate in a second working mode; the first power of the air supply assembly 3 in the first working mode is greater than the second power of the air supply assembly 3 in the second working mode.

[0096] In some embodiments, the temperature sensor 41 can be provided on the side wall of the inner chamber 21.

[0097] In some embodiments, one or more temperature sensors 41 can be provided in the inner chamber 21.

[0098] In some embodiments, the average value of the temperatures detected by the plurality of temperature sensors 41 can be taken as the temperature of the inner chamber 21.

[0099] For example, referring to FIG. 1, the drying machine has one inner chamber 21, and one temperature sensor 41 is provided in the inner chamber 21, and the control device 5 is connected with the temperature sensor 41.

[0100] In some embodiments, the number of the inner chambers 21 can be one or more.

[0101] In some embodiments, the inner chambers 21 can be provided side by side or in a stacked manner.

[0102] Referring to FIG. 3, the two inner chambers 21 are arranged in a stacked manner, and referring to FIG. 4, the two inner chambers 21 are arranged in a side-by-side manner.

[0103] In some embodiments, referring to FIG. 3 and FIG. 4, the drying machine comprises two inner chambers 21, and each inner chamber 21 is provided with a corresponding air supply assembly 3 (not shown in FIG. 4). The air supply assembly 3 is arranged at the rear of the inner chamber 21, and a cabinet door (not shown in FIG. 4) is arranged at the front of the inner chamber 21.

[0104] For example, referring to FIG. 3 and FIG. 4, the drying machine has two inner chambers 21, and each inner chamber 21 is provided with a temperature sensor 41 and an air supply assembly 3. The control device 5 can obtain the temperature of each inner chamber 21 through the temperature sensor 41 in each inner chamber 21, and control the air supply assembly 3 of each inner chamber 21 to operate in a first working mode; when the temperature of one or more inner chambers 21 is greater than a first temperature threshold, the air supply assembly 3 of the inner chamber 21 is controlled to operate in a second working mode; the first power of the air supply assembly 3 in the first working mode is greater than the second power of the air supply assembly 3 in the second working mode.

[0105] The temperature sensor 41 refers to a sensor that can sense temperature and convert it into an output signal. The temperature sensor 41 continuously detects the temperature of the inner chamber 21 when it is turned on, and converts the detected temperature of the inner chamber 21 into an output signal and sends it to the control device 5. The control device 5 can control the opening and closing of the temperature sensor 41, and the control device 5 can continuously and actively obtain the output signal of the temperature sensor 41, or can actively obtain the output signal of the temperature sensor 41 only when needed. The connection mode of the temperature sensor 41 and the control device 5 can be wireless connection or wired connection.

[0106] The control device 5 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a single-chip microcomputer, a ready-to-program gate array (FPGA), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

[0107] The drying machine is used for drying a to-be-dried object, which includes but is not limited to fruits, meat, medicines, and chemicals.

[0108] In the implementation process, after the control device 5 controls the air supply assembly 3 to heat the temperature of the inner chamber 21 to be greater than the first temperature threshold in the first working mode, the control device 5 controls the air supply assembly 3 to operate in the second working mode. The first power of the air supply assembly 3 in the first working mode is greater than the second power of the air supply assembly 3 in the second working mode, so that the temperature of the inner chamber 21 can be quickly increased, and when the temperature of the inner chamber 21 reaches the first temperature threshold, the heating with the second power can reduce the temperature fluctuation and reduce the drying time.

[0109] In some embodiments, referring to FIG. 3, the air supply assembly 3 comprises: a fan 31 and an electric heating element 32, the fan 31 is used to deliver the heat emitted by the electric heating element 32 into the inner chamber 21.

[0110] In some embodiments, the electric heating element 32 is an electric heating wire.

[0111] In some embodiments, referring to FIG. 5, three fans 31 are arranged on the same air supply assembly 3 in an equilateral triangle arrangement, or four fans 31 are arranged on the same air supply assembly 3 in a matrix arrangement.

[0112] In some embodiments, referring to FIG. 6, the air supply assembly 3 further comprises: a swing frame 33, a first driver 34 for driving the swing frame 33 to swing, and the fan 31 is arranged on the swing frame 33.

[0113] In some embodiments, the swing frame 33 is rotatably mounted on the cabinet 1 about an axis joint 331, and the fan 31 of the air supply assembly 3 is mounted on the swing frame 33, so that the fan 31 can swing with the rotation of the swing frame 33, that is, the swing action of the fan 31 can be realized.

[0114] In some embodiments, the control device 5 controls the rotation of the first driver 34 to control the rotation of the fan 31.

[0115] The first driver 34 is arranged as a motor, and the motor and the swing frame 33 are connected in transmission through a swing arm 35, so that the swing movement of the swing frame 33 can be controlled by controlling the driving of the motor.

[0116] In some embodiments, referring to FIGS. 7 and 8, the dryer further comprises: a humidity sensor 42 arranged inside the inner chamber 21 and connected with the control device 5, for detecting the humidity of the inner chamber 21; and the control device 5 is further configured to control the air supply assembly 3 to stop operating when the humidity of the inner chamber 21 is within a preset humidity range.

[0117] The humidity sensor 42 refers to a device capable of sensing the change of external humidity and converting the humidity into a useful signal through the change of physical or chemical properties of the device material. The humidity sensor 42 can continuously detect the humidity of the inner chamber 21 when the dryer is turned on, and convert the detected temperature of the inner chamber 21 into an output signal and send it to the control device 5. The control device 5 can control the opening and closing of the temperature sensor 41, and the control device 5 can continuously and actively acquire the output signal of the humidity sensor 42, or actively acquire the output signal of the humidity sensor 42 only when needed. The connection mode of the humidity sensor 42 and the control device 5 can be wireless connection or wired connection.

[0118] In some embodiments, the humidity sensor 42 can be arranged on the side wall of the inner chamber 21 or the placement layer 24.

[0119] For example, referring to FIG. 8, the humidity sensor 42 is arranged on the side wall of the inner chamber 21.

[0120] In some embodiments, the humidity sensor 42 can be one or more.

[0121] In some embodiments, the average of the humidity detected by the plurality of humidity sensors 42 can be used as the humidity of the inner chamber 21.

[0122] In the above implementation process, the to-be-dried object itself has moisture, and in the drying process, the moisture of the to-be-dried object itself enters the inner chamber 21, thereby causing the humidity in the inner chamber 21 to rise. As the water content of the to-be-dried object itself changes, the humidity of the inner chamber 21 also changes. By detecting the humidity of the inner chamber 21, it can be determined whether the to-be-dried object has been dried. When the humidity of the inner chamber 21 is within the preset humidity range, it indicates that the water content of the to-be-dried object itself has reached the requirement, and at this time the control of the air supply assembly 3 is stopped. The automatic control of the dryer can be realized.

[0123] In some embodiments, referring to FIGS. 9 and 10, the dryer further comprises a weight sensor 43 arranged inside the inner chamber 21, for detecting the weight of the to-be-dried object in the inner chamber 21; and the control device 5 is further configured to control the working state of the air supply assembly 3 according to the change data of the weight of the to-be-dried object.

[0124] In some embodiments, the working state can be the rotation speed, the opening state, etc. of the fan 31 in the air supply assembly 3, the opening state of the electric heating element 32, the power of the electric heating element 32 when it is running, etc.

[0125] The weight sensor 43 is a device that converts the mass signal into a measurable electrical signal output. The weight sensor 43 can continuously detect the weight of the material to be dried when the dryer is turned on, and convert the detected weight of the material to be dried into an output signal and send it to the control device 5. The control device 5 can control the opening and closing of the weight sensor 43, and the control device 5 can continuously and actively acquire the output signal of the weight sensor 43, or can actively acquire the output signal of the weight sensor 43 only when needed. The connection between the weight sensor 43 and the control device 5 can be wireless connection or wired connection.

[0126] In some embodiments, the weight sensor 43 can be arranged below the material layer 24.

[0127] Referring to FIG. 11, in some embodiments, the inner chamber 21 has multiple material layers 24, and each material layer 24 is arranged below a weight sensor 43.

[0128] In some embodiments, the material layer 24 can be regarded as an electronic scale, and the control device 5 can obtain the weight of the material to be dried detected by the electronic scale.

[0129] For example, the material layer 24 is composed of an upper platform and a lower platform, and a spring or a stress sensor is connected between the upper platform and the lower platform. The weight sensor 43 is connected to the spring or the stress sensor, and is used to obtain the spring force or the stress sensor data and convert it into the weight data of the material to be dried according to the mapping relationship, and convert the weight data into an electrical signal and output it to the control device 5.

[0130] In the above implementation process, since the moisture and other substances in the material to be dried enter the inner chamber 21 during the drying process of the material to be dried, the mass of the material to be dried changes, and the mass change of the material to be dried after drying may also be different due to different water content of the material to be dried. Therefore, according to the weight change data of the material to be dried, it can be determined whether the material to be dried has been dried, and the air supply assembly 3 of the dryer is automatically turned off.

[0131] In some embodiments, referring to FIGS. 12 and 13, the dryer further comprises an image sensor 44 arranged inside the inner chamber 21 and connected to the control device 5, which is used to obtain the internal image of the inner chamber 21; the control device 5 is further used to identify the material to be dried according to the internal image of the inner chamber 21; and the working mode of the dryer is determined according to the material to be dried.

[0132] The image sensor 44 is a device that converts a light image on a photosensitive surface into an electrical signal in a corresponding proportional relationship with the light image by using the photoelectric conversion function of a photoelectric device. The image sensor 44 can be an industrial camera. The image sensor 44 can continuously detect an image of the inner chamber 21 (including an image of the material to be dried in the inner chamber 21) when the drying machine is turned on, and convert the image of the inner chamber 21 into an output signal and send it to the control device 5. The control device 5 can control the turning on and turning off of the image sensor 44, and the control device 5 can continuously actively acquire the output signal of the image sensor 44, or can actively acquire the output signal of the image sensor 44 only when needed. The connection mode of the image sensor 44 and the control device 5 can be wireless connection or wired connection.

[0133] In some embodiments, the image sensor 44 can be arranged on the side wall.

[0134] Exemplarily, referring to FIG. 14, the image sensor 44 can be arranged on the side wall.

[0135] In some embodiments, when there are multiple layers of the material layer 24, the image sensor 44 is arranged above each layer of the material layer 24.

[0136] Exemplarily, referring to FIG. 14, the image sensor 44 has multiple image sensors, and each layer of the material layer 24 is arranged above an image sensor.

[0137] In some embodiments, the working mode includes but is not limited to: a first power, a first temperature threshold, a second power, a working time length of the drying machine, and a method of controlling the air supply assembly 3 to be turned off.

[0138] In some embodiments, the control device 5 is integrated with a program corresponding to the method of identifying the material to be dried.

[0139] In some embodiments, the method of identifying the material to be dried includes: identifying the material to be dried by using a pre-trained neural network.

[0140] The working time length can be the working time length of the fan 31 in the air supply assembly 3 or the working time length of the electric heating element 32 in the air supply assembly 3.

[0141] In the above implementation, the material to be dried has different forms, different materials to be dried are suitable for different working modes, the control device 5 can identify the material to be dried, determine the working mode corresponding to the material to be dried, and dry the material to be dried by using the working mode, thereby realizing automatic drying.

[0142] In some embodiments, referring to FIG. 15, the drying machine further includes: an air guide module 6; the air guide module 6 includes: an air guide plate 61 arranged between the fan 31 and the inner chamber 21, and the air guide plate 61 is rotatable; and the control device 5 is further configured to control the rotation of the air guide plate 61.

[0143] In some embodiments, referring to FIG. 15 and FIG. 16, the air guiding module 6 further comprises a mounting frame 62 and a second driver 63, the mounting frame 62 is arranged on the cabinet 1, the air guiding plate 61 is rotatably arranged on the mounting frame 62, and the second driver 63 is used to drive the air guiding plate 61 to rotate. The second driver 63 can be a motor.

[0144] Referring to FIG. 16, in some embodiments, the end of each air guiding plate 61 is provided with a first gear 611, and the first gears 611 on different air guiding plates 61 are connected by a chain or a rack, so that when one air guiding plate 61 rotates, the remaining air guiding plates 61 also rotate.

[0145] In some embodiments, the second driver 63 is arranged as a motor.

[0146] In some embodiments, the end of one air guiding plate 61 is provided with a second gear 612, and the second driver 63 is meshed and connected with the second gear 612, so that the second driver 63 drives one air guiding plate 61 to rotate, and in turn drives the remaining air guiding plates 61 to rotate.

[0147] In some embodiments, the control device 5 controls the rotation of the air guiding plate 61 by controlling the rotation of the second driver 63.

[0148] In the above implementation process, by arranging the air guiding plate 61 and controlling the rotation of the air guiding plate 61, accurate heating at different positions in the inner chamber 21 can be achieved, and the drying effect is improved.

[0149] In some embodiments, referring to FIG. 19, the drying machine further comprises a promoting exhaust fan 7 connected with the control device 5, and the air supply end of the promoting exhaust fan 7 is arranged towards the blocking structure 23; the control device 5 is further used to control the working state of the promoting exhaust fan 7 according to the internal temperature of the plurality of inner chambers 21.

[0150] In some embodiments, the working state of the promoting exhaust fan 7 can be the opening, closing and rotating speed of the promoting exhaust fan 7 when running.

[0151] As an application example, referring to FIG. 4, FIG. 17, FIG. 18 and FIG. 19, the drying machine can include: a cabinet 1; at least two inner containers 2, the inner container 2 includes a side wall component 22, and an independent inner chamber 21 is arranged in the inner container 2; the two inner containers 2 are arranged side by side or stacked in the cabinet 1, and the side wall components 22 of the two inner containers 2 are arranged in a spaced manner to form a blocking structure 23 for heat blocking between the inner chambers 21 of the two inner containers 2; the blocking structure 23 is provided with a through hole 231. The cabinet 1 includes an outer shell 11, the outer shell 11 is provided with a plurality of exhaust holes 111, and the outer shell 11 forms a flow space 112 between the inner container 2, the flow space 112 is communicated with the blocking structure 23 and the exhaust hole 111. The air supply assembly 3 is arranged in the cabinet 1 and corresponds to the inner chamber 21 one by one, and the air supply end of the air supply assembly 3 faces the inner chamber 21. The cabinet 1 is provided with a forced exhaust fan 7, and the air supply end of the forced exhaust fan 7 faces the blocking structure 23; the airflow enters the blocking structure 23 under the action of the forced exhaust fan 7 and is discharged from the exhaust hole 111 after passing through the flow space 112.

[0152] In some embodiments, the blocking structure 23 is an empty layer.

[0153] In some embodiments, the flow space 112 is communicated with the blocking structure 23 through the through hole 231 on the blocking structure 23.

[0154] In the above implementation process, when the drying machine has a plurality of inner chambers 21, in order to avoid the temperature of the plurality of inner chambers 21 affecting each other, the blocking structure 23 is formed between the plurality of inner chambers 21, and the blocking structure 23 is an empty layer; the cabinet 1 includes an outer shell 11, the outer shell 11 is provided with a plurality of exhaust holes 111, and the outer shell 11 forms a flow space 112 between the inner container 2, and the flow space 112 is communicated with the empty layer and the exhaust hole 111. By the temperature of the plurality of inner chambers 21, it can be determined whether the heat of the inner chamber 21 with higher temperature excessively affects the temperature of other inner chambers 21, and further the working state of the forced exhaust fan 7 can be controlled according to the temperature of the inner chamber 21.

[0155] In some embodiments, the control device 5 is further configured to start the forced exhaust fan 7 when the temperature difference between the plurality of inner chambers 21 is less than or equal to a preset temperature difference threshold.

[0156] In some embodiments, the preset temperature difference threshold is pre-set or input by a user.

[0157] In the above implementation process, by judging whether the temperature difference between the plurality of inner chambers 21 is less than or equal to a preset temperature difference threshold, it can be determined whether the heat of the inner chamber 21 with higher temperature excessively affects the temperature of other inner chambers 21, and further the forced exhaust fan 7 can be controlled to discharge the hot air in the middle of the blocking structure 23 from the drying machine.

[0158] In some embodiments, the control device 5 is further configured to adjust the rotating speed of the exhaust fan 7 according to the temperature difference between the plurality of inner chambers 21.

[0159] In the above implementation, the rotating speed of the exhaust fan 7 is adjusted according to the temperature difference between the plurality of inner chambers 21, which can avoid the heat of the inner chamber 21 with higher temperature from excessively affecting the temperature of other inner chambers 21, and can also avoid the heat in the inner chamber 21 from being excessively dissipated to the outside, thereby affecting the drying effect.

[0160] In some embodiments, the plurality of temperature sensors 41 are arranged at different positions of the inner chamber 21, and the plurality of temperature sensors 41 are configured to detect the temperature at different positions of the inner chamber 21.

[0161] The control device 5 is further configured to control the rotating direction of the fan of the air supply assembly 3 according to the temperature at different positions of the inner chamber 21.

[0162] In some embodiments, the inner chamber 21 has a plurality of layers 24, and each layer 24 is provided with a temperature sensor 41 above, below or at the same level.

[0163] In the above implementation, the air supply assembly 3 is controlled according to the temperature at different positions of the inner chamber 21, which can ensure that the heat is evenly distributed at different positions of the inner chamber 21, thereby ensuring the drying effect of the drying machine.

[0164] In some embodiments, the control device 5 is further configured to determine the working mode corresponding to the triggered key module, and perform drying according to the working mode corresponding to the triggered key module.

[0165] In the above implementation, the user can directly select the working mode by triggering the key module, thereby improving the convenience.

[0166] In some embodiments, the control device 5 is in communication connection with an external device, and is configured to receive a control instruction sent by the external device and control the working state of the air supply assembly 3 according to the control instruction.

[0167] The control device 5 and the external device can be in wireless connection or wired connection, and the wireless connection can be WiFi connection, Bluetooth connection, network connection, etc. The external device can be a mobile phone, a notebook computer, a cloud server, etc.

[0168] Referring to FIG. 20, the present embodiment provides a control method of a drying machine, which is applied to the control device of the drying machine, and the method comprises the following steps:

[0169] S1: controlling the air supply assembly to operate in a first working mode;

[0170] S2: when the temperature of the inner chamber detected by the temperature sensor is greater than the first temperature threshold, controlling the air supply assembly to operate in a second working mode; the first power of the air supply assembly in the first working mode is greater than the second power of the air supply assembly in the second working mode.

[0171] In some embodiments, the first power and the first temperature threshold can be preset or input by a user. The first power and the first temperature threshold can also be determined by the control device according to the to-be-dried objects. Different to-be-dried objects can correspond to different first powers and first temperature thresholds.

[0172] For example, a user starts the drying machine, sets the working temperature of the drying machine to 75 DEG C, controls the air supply assembly to operate in the first working mode, and the control device continuously acquires the temperature of the inner chamber detected by the temperature sensor. When the control device detects that the temperature of the inner chamber is greater than 75 DEG C, the drying machine is controlled to operate in the second working mode. The first power of the air supply assembly in the first working mode is greater than the second power of the air supply assembly in the second working mode.

[0173] In the above implementation process, after the temperature of the inner chamber reaches the first temperature threshold, heating and keeping warm with the second power can reduce temperature fluctuations and reduce the drying time. At the same time, the water content of the plurality of to-be-dried objects in the inner chamber is less different, and the drying effect is better.

[0174] In some embodiments, controlling the air supply assembly to operate in the first working mode includes: controlling the fan of the air supply assembly to operate at a set speed, and controlling the electric heating element of the air supply assembly to operate at the first power.

[0175] In some embodiments, the set speed can be input by a user or preset.

[0176] In some embodiments, the set speed can be determined by the control device according to the to-be-dried objects. Different to-be-dried objects correspond to different set speeds.

[0177] In the above implementation process, the electric heating element of the air supply assembly in the first working mode operates at the first power, and the second power of the air supply assembly in the second working mode is less than the first power, so that the inner chamber can be quickly heated in the first working mode, and the entire drying time is reduced.

[0178] In some embodiments, when the temperature of the inner chamber is greater than the first temperature threshold, controlling the air supply assembly to operate in the second working mode includes: when the temperature of the inner chamber is greater than the first temperature threshold, controlling the electric heating element of the air supply assembly to operate at the second power, and controlling the fan of the air supply assembly to operate at the set speed.

[0179] In the implementation process, the fan of the air supply assembly in the first working mode and the fan in the second working mode maintain the same rotating speed, ensuring that the air flow speed in the inner chamber remains constant, so that the dehydration process of the to-be-dried objects in the inner chamber proceeds smoothly, and the dehydration degree of different parts of the to-be-dried objects caused by the multiple changes of the air flow speed is avoided. The second power of the electric heating element of the air supply assembly in the second working mode is less than the first power, so that the fluctuation change in the inner chamber is relatively slow, the time for the inner chamber to stay near the set temperature becomes longer, and the drying effect of the to-be-dried objects is better.

[0180] In some embodiments, when the temperature of the inner chamber is greater than the first temperature threshold, the electric heating element of the air supply assembly is controlled to operate at the second power, and the fan of the air supply assembly is controlled to operate at the set rotating speed, including: when the temperature of the inner chamber is less than the second temperature threshold, the electric heating element of the air supply assembly is controlled to operate at the second power, and the fan of the air supply assembly is controlled to operate at the set rotating speed; when the temperature of the inner chamber is greater than the third temperature threshold, the electric heating element of the air supply assembly is controlled to stop operating, and the fan of the air supply assembly is controlled to operate at the set rotating speed. The second temperature threshold is less than the third temperature threshold.

[0181] In some embodiments, the second temperature threshold is equal to the third temperature threshold.

[0182] It can be understood that the above two steps are repeatable until the air supply assembly is turned off; that is, when entering the second working mode, when the temperature of the inner chamber is less than the second temperature threshold, the electric heating element of the air supply assembly is controlled to operate at the second power, and the fan of the air supply assembly is controlled to operate at the set rotating speed; when the temperature of the inner chamber is greater than the third temperature threshold, the electric heating element of the air supply assembly is controlled to stop operating, and the fan of the air supply assembly is controlled to operate at the set rotating speed. The second temperature threshold is less than the third temperature threshold.

[0183] In some embodiments, the first temperature threshold can be greater than the second temperature threshold, or can be less than or equal to the second temperature threshold.

[0184] In some embodiments, the first temperature threshold is less than the third temperature threshold.

[0185] Exemplarily, the user puts the drying object into the inner chamber of the drying machine, and starts the drying machine. When the control device detects that the temperature of the inner chamber is greater than 54°C (the first temperature threshold), the control device controls the air supply assembly to enter the second working mode. In the second working mode, when the temperature of the inner chamber is less than 75°C (the second temperature threshold), the control device controls the electric heating element of the air supply assembly to continue operating at the second power, and controls the fan of the air supply assembly to operate at the set rotating speed. When the temperature of the inner chamber is greater than 75°C (the third temperature threshold), the control device controls the electric heating element of the air supply assembly to stop operating, and controls the fan of the air supply assembly to continue operating. When the temperature starts to decrease, when the temperature is less than 75°C (the second temperature threshold), the control device controls the electric heating element of the air supply assembly to continue operating at the second power, and controls the fan of the air supply assembly to operate at the set rotating speed. The working steps of the second working mode are repeated until the air supply assembly is turned off. Meanwhile, in the first working mode and the second working mode, the set rotating speed of the fan is the same.

[0186] In some embodiments, the second power is 75% to 85% of the first power.

[0187] In some embodiments, the second power is 80% of the first power.

[0188] Referring to FIGS. 21 and 22, a comparative example of the present embodiment is provided. FIG. 21 is a diagram showing the fluctuation of the temperature of an inner chamber of a drying machine shown in FIG. 4 with time when the air supply assembly of the drying machine is controlled to operate by using an existing control method. In FIG. 21, the horizontal axis represents the start time of the drying machine, and the vertical axis represents the temperature of the inner chamber. The existing control method is as follows.

[0189] When the temperature of the inner chamber is greater than 80 degrees, the control device controls the air supply assembly to stop operating. When the temperature of the inner chamber is less than 80 degrees, the control device controls the fan of the air supply assembly to operate at 1360 r / min, and controls the electric heating element of the air supply assembly to operate at 650 W.

[0190] FIG. 22 is a diagram showing the fluctuation of the temperature of an inner chamber of a drying machine shown in FIG. 4 with time when the air supply assembly of the drying machine is controlled to operate by using the control method of the present embodiment. In FIG. 22, the horizontal axis represents the start time of the drying machine, and the vertical axis represents the temperature of the inner chamber. Specifically, the control method of the present embodiment is as follows. The control device controls the air supply assembly to operate in the first working mode, in which the fan of the air supply assembly operates at 1360 r / min, and the electric heating element of the air supply assembly operates at 650 W. When the temperature of the inner chamber is greater than 54 degrees, the control device controls the air supply assembly to operate in the second working mode. When the temperature of the inner chamber is less than 80 degrees, the control device controls the fan of the air supply assembly to operate at 1360 r / min, and controls the electric heating element of the air supply assembly to operate at 520 W. When the temperature of the inner chamber is greater than 80 degrees, the control device controls the fan of the air supply assembly to operate at 1360 r / min, and controls the electric heating element of the air supply assembly to stop operating.

[0191] As can be seen from FIG. 21 and FIG. 22, when the temperature of the inner chamber reaches the first temperature threshold, the temperature fluctuation is much smaller than that of the corresponding temperature fluctuation of the prior art control method.

[0192] Further, as can be seen from the following table, when the dryer with nine layers of the drying machine similar to FIG. 8 is used to dry apples, the changes of the water content and the mass of the apples after 3.5 hours of drying by the dryer using the prior art control method and the control method of the present embodiment, respectively, where the initial weight of the apples placed in each layer of the dryer of the two methods is the same, and the thickness is 5mm-6mm.

[0193] Using the method of the present embodiment, the temperature of the inner chamber is 54.1℃ within 37 minutes and 9 seconds, at which time the second working mode is entered, the second power in the second working mode is 80% of the first power, and the temperature of the inner chamber becomes 62.6℃ within 2 hours and 11 minutes and 19 seconds; the entire drying is completed within 4 hours. Using the method of the prior art, the temperature of the inner chamber is 53.1℃ within 29 minutes and 29 seconds; the bottom layer is dried within 4 hours, and each of the top layer to the seventh layer has one or two slightly wet apples; around 4 hours and 30 minutes, the entire dryer has two slightly wet apples, and the other apples are completely dried.

[0194] As can be seen, the dehydration rate of the apples in each layer using the control method of the present embodiment is slightly higher than or equal to that of the prior art control method, and the overall drying time is shorter than that of the prior art.

[0195] In some embodiments, the second power is 80% of the first power.

[0196] In some embodiments, when the temperature of the inner chamber detected by the temperature sensor is greater than the first temperature threshold, the air supply assembly is controlled to operate in the second working mode, including: when the temperature of the inner chamber is less than the second temperature threshold, the electric heating element of the air supply assembly is controlled to operate at the switching frequency and the second power, and the fan of the air supply assembly is controlled to operate at the set air speed; when the temperature of the inner chamber is greater than the third temperature threshold, the electric heating element of the air supply assembly is controlled to stop operating, and the fan of the air supply assembly is controlled to operate at the set air speed; the second temperature threshold is less than the third temperature threshold.

[0197] Exemplarily, the user puts the to-be-dried object into the inner chamber of the drying machine, and turns on the drying machine. When the control device detects that the temperature of the inner chamber is greater than 54 DEG C (the first temperature threshold), the control device controls the air supply assembly to enter the second working mode. In the second working mode, when the temperature of the inner chamber is less than 75 DEG C (the second temperature threshold), the electric heating element of the air supply assembly is turned on every three minutes (the longest time for each turning-on is 2 minutes), the power during the operation is the second power, and the fan of the air supply assembly operates at the set rotating speed. When the temperature of the inner chamber is greater than 75 DEG C (the third temperature threshold), the electric heating element of the air supply assembly stops operating, and the fan of the air supply assembly continues to operate. At this time, the temperature starts to decrease. When the temperature is less than 75 DEG C (the second temperature threshold), the electric heating element of the air supply assembly is turned on every three minutes (the longest time for each turning-on is 2 minutes), the power during the operation is the second power, and the fan of the air supply assembly operates at the set rotating speed. The working steps of the second working mode are repeated until the air supply assembly is turned off. Meanwhile, in the first working mode and the second working mode, the set rotating speed of the fan is the same.

[0198] In the implementation process, the relationship between the heating time of the electric heating element and the working time of the temperature of the inner chamber is complex. By using the preset switching frequency to start the electric heating element, the working time of the electric heating element can be reduced, the overall drying time of the drying machine is not lengthened or shortened, and the energy consumption of the drying machine is reduced.

[0199] In some embodiments, the method further comprises: obtaining temperature fluctuation information of the inner chamber when the air supply assembly operates in the second working mode; and adjusting the second power according to the temperature fluctuation information of the inner chamber.

[0200] In some embodiments, the temperature fluctuation information can be an absolute value of an average slope of a temperature change curve over time.

[0201] Exemplarily, in the second working mode, the control device obtains an average slope of a temperature change curve of the inner chamber within a certain time period, and determines whether to adjust the second power based on the average slope.

[0202] In some embodiments, when the temperature fluctuation information is greater than a preset slope threshold, the second power is reduced.

[0203] In the implementation process, the specific heat capacities of different to-be-dried objects are different, and different to-be-dried objects have different influences on the temperature fluctuation of the inner chamber. By adjusting the second power according to the temperature fluctuation information, the temperature of the inner chamber can be stably changed when the drying machine dries different to-be-dried objects, the heating time and the heating frequency of the air supply assembly are reduced, and the energy consumption of the drying machine is reduced.

[0204] In some embodiments, the method further comprises: identifying the to-be-dried object, and determining the second power according to the to-be-dried object.

[0205] In some embodiments, the method further comprises adjusting the second power according to one or more of the number of start-up operations and the number of stop operations of the air supply assembly when the air supply assembly is operating in the second operating mode.

[0206] In some embodiments, adjusting the second power according to one or more of the number of start-up operations and the number of stop operations of the air supply assembly when the air supply assembly is operating in the second operating mode comprises: reducing the second power when the number of start-up operations of the air supply assembly in a monitoring period is greater than a first number threshold, or reducing the second power when the number of stop operations of the air supply assembly in the monitoring period is greater than a second number threshold, or reducing the second power when the sum of the number of start-up operations and the number of stop operations of the air supply assembly in the monitoring period is greater than a third number threshold.

[0207] It can be understood that the first number threshold, the second number threshold and the third number threshold can be pre-set or input by a user; and the first number threshold, the second number threshold and the third number threshold can be the same or different.

[0208] Exemplarily, in the second operating mode, the number of the control device is increased by 1 each time the electric heating element is started, and if the control device identifies that the number of start-up operations of the electric heating element in a certain time period exceeds 20, the second power can be reduced.

[0209] In the above implementation process, the specific heat capacity of different to-be-dried materials is different, and different to-be-dried materials have different influences on the temperature fluctuation of the inner chamber. The number of start-up operations and the number of stop operations of the heating element can reflect the temperature fluctuation information of the inner chamber. Adjusting the second power according to the number of start-up operations and the number of stop operations of the heating element in the second operating mode can make the temperature of the inner chamber change smoothly when the drying machine is drying different to-be-dried materials, reduce the heating time and the number of heating of the air supply assembly, and reduce the energy consumption of the drying machine.

[0210] In some embodiments, the method further comprises: obtaining temperature fluctuation information of the inner chamber when the air supply assembly is operating in the second operating mode; and adjusting the switching frequency of the electric heating element of the air supply assembly according to the temperature fluctuation information of the inner chamber.

[0211] In some embodiments, adjusting the switching frequency of the electric heating element of the air supply assembly according to the temperature fluctuation information of the inner chamber comprises: increasing the switching frequency or the operation time of the electric heating element each time when the temperature fluctuation information is greater than a pre-set slope threshold.

[0212] Exemplarily, in the second working mode, the control device acquires the absolute value of the average slope of the temperature change curve of the inner chamber in a certain time period, and judges whether to adjust the second power based on the average slope. If the average slope exceeds the slope threshold, the switching frequency of the electric heating element is adjusted from being turned on once every 3 minutes to being turned on once every 2 minutes and 30 seconds (the longest time for each turning on is 2 minutes).

[0213] In the implementation process, the specific heat capacities of different to-be-dried materials are different, and different to-be-dried materials have different influences on the temperature fluctuation of the inner chamber. The switching frequency of the electric heating element of the air supply assembly is adjusted according to the temperature fluctuation information of the inner chamber, which can reduce the influence of different to-be-dried materials on the temperature fluctuation of the inner chamber, make the temperature of the inner chamber change smoothly when the drying machine dries different to-be-dried materials, reduce the heating time and heating frequency of the air supply assembly, and reduce the energy consumption of the drying machine.

[0214] In some embodiments, the method further includes: acquiring the number of times of starting operation of the air supply assembly when the air supply assembly operates in the second working mode; and adjusting the switching frequency of the electric heating element of the air supply assembly according to one or more of the number of times of starting operation and the number of times of stopping operation of the air supply assembly when the air supply assembly operates in the second working mode.

[0215] Exemplarily, in the second working mode, the count of the control device is increased by 1 each time the electric heating element is started. If the control device identifies that the number of times of starting the electric heating element in a certain time period exceeds 20, the switching frequency of the electric heating element can be increased.

[0216] In the implementation process, the specific heat capacities of different to-be-dried materials are different, and different to-be-dried materials have different influences on the temperature fluctuation of the inner chamber. The number of times of starting operation and the number of times of stopping operation of the heating element can reflect the temperature fluctuation information of the inner chamber. The switching power is adjusted according to the number of times of starting operation and the number of times of stopping operation of the heating element when the heating element operates in the second working mode, which can make the temperature of the inner chamber change smoothly when the drying machine dries different to-be-dried materials, reduce the heating time and heating frequency of the air supply assembly, and reduce the energy consumption of the drying machine.

[0217] In some embodiments, the temperature fluctuation information of the inner chamber of the air supply assembly when the air supply assembly operates in the second working mode is acquired by: acquiring the temperature fluctuation information of the inner chamber of the air supply assembly in a monitoring period when the air supply assembly operates in the second working mode.

[0218] Exemplarily, when the air supply assembly operates in the second working mode, a temperature change curve of the temperature of the inner chamber changing with time is started to be acquired. After a certain time length, the average slope of the temperature change curve is acquired, and the average slope of the temperature change curve is taken as the temperature fluctuation information.

[0219] In some embodiments, the average slope can be obtained by the following method: obtaining a plurality of temperature points on the temperature change curve, and taking the absolute value of the average of the slopes of the plurality of temperature points as the average slope of the temperature change curve.

[0220] It can be understood that the greater the average slope of the temperature change curve, the greater the temperature fluctuation of the inner chamber within the monitoring period.

[0221] In the above implementation process, by setting the monitoring period in the second working mode to obtain the temperature fluctuation information, the temperature fluctuation of the inner chamber under different second powers and switching frequencies can be further obtained. Since the monitoring period is continuous, the temperature fluctuation information of the inner chamber obtained in the monitoring period has high accuracy.

[0222] In some embodiments, the number of start-up operations and the number of stop operations are obtained by the following steps: obtaining one or more of the number of start-up operations and the number of stop operations of the fan of the air supply assembly in the monitoring period when the air supply assembly is running in the second working mode.

[0223] For example, after the air supply assembly runs in the second working mode for three minutes, one or more of the number of start-up operations and the number of stop operations of the temperature change of the inner chamber over time are recorded, and after one hour (the length of the monitoring period is reached), the number of start-up operations and the number of stop operations of the air supply assembly in the second working mode are obtained.

[0224] In the above implementation process, by setting the monitoring period in the second working mode to obtain the number of start-up operations and the number of stop operations of the fan of the air supply assembly, the temperature fluctuation of the inner chamber under different second powers and switching frequencies can be further obtained. Since the monitoring period is continuous, the number of start-up operations and the number of stop operations obtained in the monitoring period can more accurately reflect the temperature fluctuation of the inner chamber.

[0225] It should be noted that in the present embodiment, the starting time point and the time span of the monitoring period corresponding to the acquisition of the temperature fluctuation information, the monitoring period corresponding to the acquisition of the number of start-up operations of the air supply assembly, the monitoring period corresponding to the acquisition of the number of stop operations of the air supply assembly, and the monitoring period corresponding to the acquisition of the number of start-up operations and the number of stop operations of the air supply assembly can be the same or different. The monitoring period can be a pre-set fixed value or can be adjusted at any time.

[0226] In some embodiments, in the second working mode, the above method of adjusting the second power and the switching frequency can be used to adjust the second power and the switching frequency multiple times.

[0227] In order to further realize the intelligent control of the drying machine, the present embodiment also provides a plurality of methods for intelligently turning off the air supply assembly.

[0228] In some embodiments, the method further comprises: controlling the working state of the air supply assembly according to the temperature of the inner chamber and the maintaining duration of the temperature of the inner chamber.

[0229] In the above implementation, the cumulative duration of the temperature of the inner chamber can be a cumulative duration of the temperature of the inner chamber being maintained at a certain temperature point, or a cumulative duration of the temperature of the inner chamber being maintained within a certain preset temperature range.

[0230] For example, the temperature of the inner chamber is 60°C from the 31st minute to the 60th minute, the temperature of the inner chamber is 75°C from the 61st minute to the 90th minute, and the temperature of the inner chamber is 60°C from the 101st minute to the 160th minute. The cumulative duration of the temperature of the inner chamber being 60°C is 90 minutes, and the cumulative duration of the temperature of the inner chamber being 75°C is 30 minutes.

[0231] For example, the drying machine is controlled by using the method S1-S2 or other drying methods. The control device continuously obtains the temperature of the inner chamber through the temperature sensor. When the temperature of the inner chamber and the maintaining duration of the temperature of the inner chamber reach the preset conditions, the air supply assembly is turned off.

[0232] In the above implementation, the water content of the drying object, the temperature of the inner chamber, and the maintaining duration of the temperature of the inner chamber are related. The air supply assembly can be automatically controlled to stop running according to the temperature of the inner chamber and the maintaining duration of the temperature of the inner chamber, thereby improving the intelligent degree of the drying machine.

[0233] In some embodiments, the working state of the air supply assembly is controlled according to the temperature of the inner chamber and the maintaining duration of the temperature of the inner chamber, comprising: when the temperature of the inner chamber is within a preset temperature range, and the cumulative duration of the temperature of the inner chamber being within the preset temperature range is greater than or equal to a duration threshold, the air supply assembly is controlled to stop running.

[0234] For example, the drying machine is controlled by using the method S1-S2 or other control methods. The control device continuously obtains the temperature of the inner chamber. The preset temperature range of the inner chamber is 0°C-60°C from the 1st minute to the 30th minute, and the temperature of the inner chamber is 60°C-75°C from the 31st minute to the 120th minute. The duration threshold is 90 minutes, and the preset temperature range is 60°C-75°C. Therefore, the control device controls the air supply assembly to stop running at the end of the 120th minute.

[0235] In the implementation process, the water content of the to-be-dried object and the temperature of the inner chamber and the maintenance duration of the temperature of the inner chamber are related. When the temperature of the inner chamber is within the preset temperature range, and the cumulative duration of the temperature of the inner chamber within the preset temperature range is greater than or equal to the duration threshold, it can be considered that the water content of the to-be-dried object has met the requirement, and the air supply assembly can be automatically turned off, thereby improving the intelligent degree of the drying machine.

[0236] In some embodiments, when the temperature of the inner chamber is within the preset temperature range, and the cumulative duration of the temperature of the inner chamber within the preset temperature range is greater than or equal to the duration threshold, the control of the air supply assembly to stop running includes: starting timing when the temperature of the inner chamber is within the preset temperature range; pausing timing when the temperature of the inner chamber is not within the preset temperature range; and controlling the air supply assembly to stop running when the timing duration is greater than or equal to the duration threshold.

[0237] Exemplarily, the control device controls the drying machine to work by using S1-S2 or other control methods, the preset temperature range is 60-75°C, and the duration threshold is 90 minutes. The control device continuously acquires the temperature of the inner chamber. In the first 30 minutes, the preset temperature range of the inner chamber is 0-60°C. The control device detects that the temperature of the inner chamber is 60°C at the 31st minute, and starts the timing program to start timing at this time. In the 31st minute to the 90th minute, it is detected that the temperature of the inner chamber is within 60-75°C. At the 91st minute, it is detected that the temperature of the inner chamber is 58°C, and the timing is paused at this time. The timing duration is 60 minutes. At the 92nd minute, it is detected that the temperature of the inner chamber is 60°C, and the control device starts the timing program to start timing at this time. In the 92nd minute to the 121st minute, it is detected that the temperature of the inner chamber is within 60-75°C. When entering the 122nd minute, the timing duration of the timing module of the control device has reached 90 minutes. At this time, the air supply assembly is controlled to stop running.

[0238] In the implementation process, the control device bears multiple control functions of the drying machine. By means of intermittent timing, the running time of the timing program of the control device can be reduced, the energy consumption of the control device can be reduced, and the intelligent control of the drying machine can be realized.

[0239] In some embodiments, the method further includes: controlling the air supply assembly to stop running according to the temperature of the inner chamber and the maintenance duration of the temperature of the inner chamber, including: when the cumulative duration of the temperature of the inner chamber being greater than a fourth temperature threshold is greater than or equal to a cumulative duration threshold of the fourth temperature threshold, controlling the air supply assembly to stop running.

[0240] In the above implementation process, the water content of the to-be-dried object and the temperature of the inner chamber and the accumulated time length at the temperature are related. When the accumulated time length that the temperature of the inner chamber is greater than the fourth temperature threshold is greater than the accumulated time length threshold of the fourth temperature threshold, it can be determined that the water content of the to-be-dried object has met the requirement, at which time the air supply assembly can be controlled to stop running, realizing automatic control.

[0241] In some embodiments, when the accumulated time length that the temperature of the inner chamber is greater than the fourth temperature threshold is greater than the accumulated time length threshold of the fourth temperature threshold, controlling the air supply assembly to stop running includes: starting timing when it is detected that the temperature of the inner chamber is greater than or equal to the fourth temperature threshold; stopping timing when it is detected that the temperature of the inner chamber is less than the fourth temperature threshold, and controlling the air supply assembly to stop running when the accumulated timing length is greater than or equal to the accumulated time length threshold of the fourth temperature threshold.

[0242] In the above implementation process, the timing is started only when it is detected that the temperature of the inner chamber is greater than or equal to the fourth temperature threshold, which can reduce the energy consumption of the control device.

[0243] In some embodiments, the accumulated time length threshold of the fourth temperature threshold is determined according to the fourth temperature threshold.

[0244] In some embodiments, for the same to-be-dried object, the higher the fourth temperature threshold, the smaller the accumulated time length threshold of the fourth temperature threshold.

[0245] In some embodiments, the fourth temperature threshold can be a pre-set fixed value or input by a user.

[0246] In some embodiments, the fourth temperature threshold is determined according to the to-be-dried object.

[0247] For example, apples and melon seeds can have different fourth temperature thresholds.

[0248] In some embodiments, the control method further includes: when the humidity of the inner chamber detected by the humidity sensor is within a pre-set humidity range, controlling the air supply assembly to stop running.

[0249] For example, the control device controls the operation of the drying machine by using the S1-S2 method or other methods, and the control device continuously obtains the humidity of the inner chamber detected by the humidity sensor, and when the humidity of the inner chamber is within a pre-set humidity range, the air supply assembly is controlled to stop running.

[0250] In the implementation process, the to-be-dried object itself has moisture, and in the drying process, the moisture of the to-be-dried object itself enters the inner chamber, thereby causing the humidity in the inner chamber to rise. As the water content of the to-be-dried object itself changes, the temperature of the inner chamber also changes. The humidity in the inner chamber can be used to determine whether the to-be-dried object has completed drying. When the humidity in the inner chamber is within the preset humidity range, it indicates that the water content of the to-be-dried object itself has reached the requirement, and at this time, the control of the air supply assembly is stopped, thereby realizing the automatic control of the drying machine.

[0251] In some embodiments, the preset humidity range is determined according to the to-be-dried object.

[0252] In some embodiments, the preset humidity range is a fixed value set in advance.

[0253] In some embodiments, the preset humidity range is input by a user.

[0254] In some embodiments, when the humidity in the inner chamber detected by the humidity sensor is within the preset humidity range, the control of the air supply assembly is stopped, including: when the humidity in the inner chamber decreases to be within the preset humidity range, the control of the air supply assembly is stopped.

[0255] For example, the control device controls the operation of the drying machine by using the method of S1-S2 or other methods. The control device continuously obtains the humidity in the inner chamber detected by the humidity sensor, and when the humidity in the inner chamber decreases to be within the preset humidity range, the control of the air supply assembly is stopped.

[0256] In the implementation process, since the to-be-dried object itself has moisture, in the drying process, the humidity in the inner chamber first rises and then decreases, and therefore, the humidity range of the inner chamber is within the preset humidity range twice or more. When the humidity in the inner chamber decreases to be within the preset humidity range, the control of the air supply assembly is stopped, thereby avoiding the premature closing of the air supply assembly.

[0257] In some embodiments, when the humidity in the inner chamber decreases to be within the preset humidity range, the control of the air supply assembly is stopped, including: determining whether the humidity in the inner chamber is in a decreasing trend; when the humidity in the inner chamber is in a decreasing trend, determining whether the humidity in the inner chamber is within the preset humidity range, and if so, controlling the air supply assembly to stop.

[0258] For example, the control device controls the operation of the drying machine by using the method of S1-S2 or other methods. The control device continuously obtains the humidity in the inner chamber detected by the humidity sensor, and when the humidity in the inner chamber decreases to be within the preset humidity range, the control of the air supply assembly is stopped.

[0259] In the implementation process, the control device further determines whether the humidity in the inner chamber is within the preset humidity range only when the humidity in the inner chamber is in a downward trend, so as to avoid the control device continuously performing the determination step and reduce the energy consumption of the control device.

[0260] In some embodiments, when the humidity in the inner chamber falls within the preset humidity range, the control device controls the air supply assembly to stop running, including: when the humidity in the inner chamber is in a downward trend, determining whether the humidity in the inner chamber is lower than a first humidity threshold value, and if so, controlling the air supply assembly to stop running; the first humidity threshold value is less than the upper limit value of the preset humidity range.

[0261] In some embodiments, the first humidity threshold value belongs to the preset humidity range.

[0262] For example, the control device controls the drying machine to work by using the method of S1-S2 or other methods, and the control device continuously acquires the humidity in the inner chamber detected by the humidity sensor, determines whether the humidity in the inner chamber is in a downward trend, and if so, controls the air supply assembly to stop running.

[0263] In the implementation process, during the working process of the drying machine, the humidity in the inner chamber of the drying machine may fluctuate continuously and generally rise first and then fall due to various factors. By setting the first humidity threshold value, the air supply assembly can be controlled to stop running when the humidity in the inner chamber first falls within the preset humidity range, thereby improving the intelligent degree of the drying machine.

[0264] In some embodiments, determining whether the humidity in the inner chamber is in a downward trend includes: determining whether the decrease amount of the humidity in the inner chamber within a preset time is greater than a preset humidity decrease amount, and if so, determining that the drying machine is in a downward trend.

[0265] For example, the control device controls the drying machine to work by using the method of S1-S2 or other methods, and the control device continuously acquires the humidity in the inner chamber detected by the humidity sensor, determines whether the decrease amount of the humidity in the inner chamber within a preset time is greater than a preset humidity decrease amount, and if so, determines that the drying machine is in a downward trend.

[0266] In some embodiments, the preset humidity decrease amount can be a fixed value preset in advance or input by a user.

[0267] In the implementation process, during the working process of the drying machine, the humidity in the inner chamber generally rises first and then falls, but may fluctuate in a short time. By determining whether the decrease amount of the humidity in the inner chamber within a preset time is greater than a preset humidity decrease amount to determine whether the drying machine is in a downward trend, it can be avoided that the humidity is mistakenly determined to be in a downward trend due to the humidity in the inner chamber fluctuating multiple times in a short time.

[0268] In some embodiments, the control of the air supply assembly to stop running when the humidity of the inner chamber detected by the humidity sensor is within the preset humidity range comprises: the control of the air supply assembly to stop running when the humidity of the inner chamber is within the preset humidity range and the working time of the drying machine is greater than or equal to the preset working time.

[0269] Exemplarily, the control device controls the drying machine to work by using the method of S1-S2 or other methods, and the control device continuously acquires the humidity of the inner chamber detected by the humidity sensor, and controls the air supply assembly to stop running when the humidity of the inner chamber is within the preset humidity range and the working time of the drying machine is greater than or equal to the preset working time.

[0270] In the above implementation process, the humidity of the inner chamber as a whole presents a trend of first rising and then falling, and when the working time of the drying machine is greater than or equal to the preset working time, it can be determined that the humidity in the inner chamber has risen to outside the preset humidity range, thereby avoiding early closing of the air supply assembly.

[0271] In some embodiments, the control of the air supply assembly to stop running when the humidity of the inner chamber is within the preset humidity range comprises: when the working time of the drying machine is greater than or equal to the preset working time, acquiring the humidity of the inner chamber; and when the humidity of the inner chamber is within the preset humidity range, controlling the air supply assembly to stop running.

[0272] Exemplarily, the control device controls the drying machine to work by using the method of S1-S2 or other methods, and when the working time of the drying machine is greater than or equal to the preset working time, the control device starts to acquire the humidity of the inner chamber from the humidity sensor; and when the humidity of the inner chamber is within the preset humidity range, the control of the air supply assembly to stop running.

[0273] Exemplarily, the control device controls the drying machine to work by using the method of S1-S2 or other methods, and when the working time of the drying machine is greater than or equal to the preset working time, the control device starts to acquire the humidity of the inner chamber from the humidity sensor; and when the humidity of the inner chamber is within the preset humidity range, the control of the air supply assembly to stop running.

[0274] In the above implementation process, the humidity of the inner chamber is acquired from the humidity sensor only when the working time is greater than or equal to the preset working time, and the control device does not need to continuously acquire the humidity, thereby reducing the energy consumption of the control device.

[0275] In some embodiments, the control of the air supply assembly to stop running when the humidity of the inner chamber is within the preset humidity range comprises: the control of the air supply assembly to stop running after the humidity of the inner chamber exceeds a second humidity threshold and the humidity of the inner chamber decreases to within the preset humidity range; and the second humidity threshold is greater than the upper limit of the preset humidity range.

[0276] Exemplarily, the control device controls the drying machine to work in the method S1-S2 or other methods, and after the humidity in the inner chamber exceeds the second humidity threshold value, and the humidity in the inner chamber drops into the preset humidity range, the control device controls the air supply assembly to stop running; the second humidity threshold value is greater than the upper limit value of the preset humidity range.

[0277] In the above implementation process, the humidity in the inner chamber presents a trend of first rising and then falling, and since the second humidity threshold value is greater than the upper limit value of the first humidity threshold value, when the humidity in the inner chamber is greater than the second humidity threshold value, it can be judged that the humidity in the inner chamber has not been initially rising into the preset humidity range. Based on the above embodiment, it can be avoided that the air supply assembly is closed when the humidity in the inner chamber is initially rising into the preset humidity range.

[0278] In some embodiments, the difference between the second humidity threshold value and the upper limit value of the preset humidity range is greater than the preset humidity difference value.

[0279] In some embodiments, the preset humidity difference value is greater than or equal to 2%rh.

[0280] The embodiment also provides a method for controlling the air supply assembly to stop running according to the weight of the material to be dried.

[0281] In some embodiments, the method comprises: controlling the air supply assembly to stop running according to the change data of the weight of the material to be dried detected by the weight sensor.

[0282] Exemplarily, the drying machine has only one material layer on which the material to be dried is placed, the bottom of the material layer is provided with a weight sensor, the drying machine is controlled by the method S1-S2 or other control methods, the control device continuously obtains the data of the weight sensor to obtain the weight of the material to be dried, and the air supply assembly is controlled to stop running according to the change data of the weight of the material to be dried.

[0283] Exemplarily, the drying machine has multiple material layers on which the material to be dried is placed, the bottom of each material layer is provided with a weight sensor, the drying machine is controlled by the method S1-S2 or other control methods, the control device continuously obtains the data of the weight sensor to obtain the weight of the material to be dried, and the air supply assembly is controlled to stop running according to the change data of the weight of the material to be dried.

[0284] In the above implementation process, since the moisture and other substances in the material to be dried enter the inner chamber during the drying process of the material to be dried, the mass of the material to be dried changes, the moisture content of the material to be dried is different, and the mass change of the material to be dried after the drying process may also be different. Therefore, according to the change data of the weight of the material to be dried, it can be obtained whether the material to be dried has been dried, and the air supply assembly of the drying machine is automatically closed.

[0285] In some embodiments, the method further comprises: controlling the air supply assembly to stop operating according to the change data of the weight of the material to be dried detected by the weight sensor, comprising:

[0286] controlling the air supply assembly to stop operating when the percentage of the weight reduction of the material to be dried exceeds the percentage threshold.

[0287] Exemplarily, the drying machine has only one material layer on which the material to be dried is placed, the bottom of the material layer is provided with a weight sensor, and the drying machine is controlled by the method S1-S2 or other control methods. The control device continuously obtains the data of the weight sensor to obtain the weight of the material to be dried, and controls the air supply assembly to stop operating when the percentage of the weight reduction of the material to be dried exceeds the percentage threshold.

[0288] Exemplarily, the drying machine has multiple material layers on which the material to be dried is placed, and the bottom of each material layer is provided with a weight sensor. The drying machine is controlled by the method S1-S2 or other control methods. The control device continuously obtains the data of the weight sensor to obtain the weight of the material to be dried, and controls the air supply assembly to stop operating when the percentage of the weight reduction of the material to be dried on all material layers exceeds the percentage threshold, or controls the air supply assembly to stop operating or issues a prompt when the percentage of the weight reduction of the material to be dried on any one material layer exceeds the percentage threshold.

[0289] In the above implementation process, different materials to be dried have different water contents, and the percentage of the weight reduction of the material to be dried is used to close the air supply assembly, which can realize the automatic closing of the air supply assembly when the drying machine dries different volumes and different types of materials to be dried.

[0290] In some embodiments, the percentage threshold corresponding to different materials to be dried is different.

[0291] Exemplarily, the percentage threshold can be a fixed value set in advance or input by a user.

[0292] In some embodiments, the method further comprises: identifying the material to be dried according to the image of the inner chamber detected by the image sensor; and determining the working mode of the drying machine according to the material to be dried.

[0293] In some embodiments, the working mode can include one or more of the following: a first power, a first temperature threshold, a second temperature threshold, a third temperature threshold, a preset humidity range, a preset temperature range, a drying time, a preset working time, a temperature required to be maintained in the inner chamber during the operation of the drying machine, and a percentage threshold.

[0294] Exemplarily, the user places the to-be-dried objects in the drying machine, the user opens the drying machine, at this time the image sensor is turned on, the image sensor acquires the image of the to-be-dried objects in the inner chamber, the control device acquires the image of the to-be-dried objects in the inner chamber from the image sensor, identifies the to-be-dried objects (such as apples and the like) by using the built-in algorithm, determines the working mode of the drying machine according to the to-be-dried objects, and controls the drying machine to work by using the working mode.

[0295] In the implementation process, compared with the prior art of manually inputting the working parameters to control the drying machine to work, the to-be-dried objects are identified by using the image sensor, the working mode of the drying machine is determined according to the to-be-dried objects, and the drying machine can be completely intelligentized.

[0296] In some embodiments, the method further comprises: acquiring distribution information of the plurality of to-be-dried objects in the inner chamber; and controlling the air supply assembly according to the distribution information.

[0297] In some embodiments, the distribution information comprises one or more of a placement layer where the to-be-dried objects are located and a quantity of the to-be-dried objects.

[0298] In the implementation process, the air supply assembly is controlled according to the distribution information, and energy consumption can be saved.

[0299] In some embodiments, the air supply assembly is controlled according to the distribution information, comprising: determining one or more of a set rotating speed of a fan of the air supply assembly, a first power of an electric heating element of the air supply assembly, a quantity of the fans of the air supply assembly that are turned on, and a rotating direction of the fan of the air supply assembly according to the distribution information.

[0300] In the implementation process, the working parameters of different components of the drying machine are determined according to the distribution information, the drying effect can be improved, and energy consumption can be saved.

[0301] In some embodiments, the method further comprises: acquiring distribution information of the plurality of to-be-dried objects in the inner chamber; and controlling a rotating direction of the air deflector according to the distribution information.

[0302] Exemplarily, the drying machine has a plurality of placement layers, when the control device identifies that the to-be-dried objects are only placed in a certain layer or a certain number of layers, the second driver can be controlled to rotate so that the hot air delivered by the air supply assembly blows to the placement layer where the to-be-dried objects are located.

[0303] In the implementation process, the rotating direction of the air deflector is controlled according to the distribution information, and the heat delivered by the air supply assembly can be maximized.

[0304] In some embodiments, the method further comprises: controlling the rotating direction of the air deflector according to temperatures of different positions in the inner chamber detected by a plurality of temperature sensors.

[0305] In some embodiments, the control device controls the rotation direction of the air deflector according to the temperatures detected by the plurality of temperature sensors at different positions in the inner chamber, including: controlling the rotation direction of the air deflector so that the air deflector is turned to the position corresponding to the temperature sensor detecting the lowest temperature.

[0306] In some embodiments, the control device controls the rotation of the second driver, which drives the rotation of the second gear, thereby driving the rotation of the air deflector.

[0307] In some embodiments, a temperature sensor is installed above each storage layer, and the position corresponding to the temperature sensor refers to the storage layer below the temperature sensor.

[0308] In some embodiments, the position corresponding to the temperature sensor can also be the position where the temperature sensor is located.

[0309] Exemplarily, the second driver is a motor, and the control device can control the rotation of the motor to control the rotation of the air deflector.

[0310] In some embodiments, the method further includes: controlling the working state of the auxiliary exhaust fan according to the internal temperatures of the plurality of inner chambers.

[0311] In some embodiments, controlling the working state of the auxiliary exhaust fan according to the internal temperatures of the plurality of inner chambers includes:

[0312] When the temperature difference between the plurality of inner chambers is less than or equal to a preset temperature difference threshold, the auxiliary exhaust fan is turned on.

[0313] In the above implementation process, when the temperature difference between the plurality of inner chambers is less than or equal to a preset temperature difference threshold, it can be determined that the heat of the inner chamber with a higher temperature will excessively affect the temperatures of other inner chambers, and further the auxiliary exhaust fan can be controlled to exhaust the hot air in the middle of the blocking structure from the dryer.

[0314] In some embodiments, controlling the working state of the auxiliary exhaust fan according to the internal temperatures of the plurality of inner chambers includes: adjusting the rotation speed of the auxiliary exhaust fan when it is running according to the temperature difference between the plurality of inner chambers.

[0315] In the above implementation process, adjusting the rotation speed of the auxiliary exhaust fan when it is running according to the temperature difference between the plurality of inner chambers can avoid the heat of the inner chamber with a higher temperature from excessively affecting the temperatures of other inner chambers, while avoiding the heat in the inner chamber from being discharged to the outside in large quantities to affect the drying effect.

[0316] In some embodiments, controlling the working state of the auxiliary exhaust fan according to the internal temperatures of the plurality of inner chambers includes: controlling the working state of the auxiliary exhaust fan according to the internal temperature of the inner chamber with the lowest temperature among the plurality of inner chambers.

[0317] In the implementation process, the internal temperature of the inner chamber with the lowest temperature is easily affected by the internal temperature of the inner chamber with the highest temperature, and whether the internal temperature of the inner chamber with the lowest temperature is affected by the temperature of other inner chambers can be determined according to the internal temperature of the inner chamber with the lowest temperature among the plurality of inner chambers, so that the opening of the exhaust fan can be accurately controlled.

[0318] In some embodiments, the working state of the exhaust fan is controlled according to the internal temperature of the inner chamber with the lowest temperature among the plurality of inner chambers, including: when the internal temperature of the inner chamber with the lowest temperature exceeds the set working temperature of the inner chamber with the lowest temperature, the exhaust fan is started.

[0319] The set working temperature of the inner chamber refers to the maximum temperature allowed by the inner chamber preset by the user or the control device.

[0320] In the implementation process, when the internal temperature of the inner chamber with the lowest temperature exceeds the set working temperature of the inner chamber with the lowest temperature, the exhaust fan is started, which can effectively discharge the heat emitted by the inner chamber with the higher internal temperature from the heat insulation structure, reducing the influence on the inner chamber with the lowest internal temperature.

[0321] In some embodiments, the working state of the exhaust fan is controlled according to the internal temperature of the inner chamber with the lowest temperature among the plurality of inner chambers, including: adjusting the rotating speed of the exhaust fan during operation according to the internal temperature of the inner chamber with the lowest temperature.

[0322] In the implementation process, the internal temperature of the inner chamber with the lowest temperature is easily affected by the internal temperature of the inner chamber with the highest temperature, and whether the internal temperature of the inner chamber with the lowest temperature is affected by the temperature of other inner chambers can be determined according to the internal temperature of the inner chamber with the lowest temperature among the plurality of inner chambers, so that the opening of the exhaust fan can be accurately controlled.

[0323] In some embodiments, the method further includes: controlling the fan direction of the air supply assembly according to the temperature at different positions of the inner chamber.

[0324] For example, the fan direction is controlled to the position with the lowest temperature.

[0325] In some embodiments, the method further includes: determining the working mode of the drying machine according to the triggered key module.

[0326] For example, the drying machine is provided with a key module, the key module includes a plurality of keys, and different keys are marked with different materials to be dried. When the control device senses that a key is triggered, the working mode corresponding to the triggered key is obtained, and the drying machine is controlled to dry using the working mode.

[0327] In the implementation process, by setting the key module, the user can directly trigger the key to select the preset working parameter, without receiving the input working parameter, thereby improving the intelligent degree of the drying machine.

[0328] In some embodiments, the method further comprises: receiving a control instruction, and controlling the working state of the drying machine according to the control instruction.

[0329] The working state can be the opening, closing, rotation speed during operation, operation time of the fan, the first power, the second power, and the operation time of the electric heating element.

[0330] In some embodiments, the method further comprises: sending the working parameters of the components of one or more of the temperature sensor, the image sensor, the humidity sensor, the weight sensor, and the air supply assembly to an external device.

[0331] In some embodiments, the control instruction can be used to control the working state of the components of one or more of the temperature sensor, the image sensor, the humidity sensor, the weight sensor, and the air supply assembly. For example, controlling the opening and closing of the air supply assembly, controlling the rotation speed of the fan, and controlling the heating power of the electric heating element.

[0332] For example, the user obtains the image of the drying material in the inner chamber through the external device, confirms that the drying can be stopped, sends a stop working instruction to the control device through the external device, and controls the control device to control all components of the drying machine to stop working.

[0333] Referring to FIG. 23, the present embodiment provides a control system of a drying machine, which can be applied to the drying machine of other embodiments. The control system of the drying machine comprises: a control module U1, an electric heating element control module U2, an ultraviolet lamp control module U3, a fan control module U4, a temperature acquisition module U5, and an illuminating lamp control module U6.

[0334] The control module U1 is connected with the electric heating element control module U2, the ultraviolet lamp control module U3, the fan control module U4, the temperature acquisition module U5, and the illuminating lamp control module U6, respectively.

[0335] The electric heating element control module U2 is configured to control the working state of the electric heating element of the drying machine.

[0336] The ultraviolet lamp control module U3 is configured to control the working state of the ultraviolet lamp of the drying machine.

[0337] The temperature acquisition module U5 is configured to acquire the internal temperature of the drying machine.

[0338] The illuminating lamp control module U6 is configured to control the working state of the illuminating lamp of the drying machine.

[0339] The fan control module U4 is used for controlling the working state of the fan.

[0340] In the implementation process, the control system of the drying machine comprises a control module U1, an electric heating element control module U2, an ultraviolet lamp control module U3, a fan control module U4, a temperature acquisition module U5, and an illuminating lamp control module U6. The control module U1 can control the electric heating element control module U2, the ultraviolet lamp control module U3, the fan control module U4, the temperature acquisition module U5, and the illuminating lamp control module U6, thereby controlling the ultraviolet lamp, the fan, the electric heating element, and the illuminating lamp of the drying machine. The temperature of the drying machine can be acquired, so as to further control intelligently according to the temperature. Based on the above embodiment, the intelligent degree of the drying machine is improved.

[0341] In some embodiments, the electric heating element can be an electric heating wire, and the fan can be a fan.

[0342] In some embodiments, the model of the single-chip microcomputer is BF7612DM20 (SOP-20).

[0343] Exemplarily, referring to FIG. 24, a schematic diagram of the control module U1 provided in the embodiment is shown. The control module U1 comprises a single-chip microcomputer, and the model of the single-chip microcomputer is BF7612DM20 (SOP-20). The 7th pin of the single-chip microcomputer is grounded, and the 8th pin is connected to the power supply VCC.

[0344] The single-chip microcomputer in the embodiment is BF7612DM20 (SOP-20).

[0345] In some embodiments, referring to FIG. 25, the control module U1 comprises a single-chip microcomputer connected to the electric heating element control module U2. The drying machine (for example, the drying machine shown in FIGS. 3 and 4) has two cavities, which are referred to as a first cavity and a second cavity. The electric heating element control module U2 comprises a first electric heating element control module U21 and a second electric heating element control module U22. The first electric heating element control module U21 is used for controlling the working state of the electric heating element of the first cavity. The second electric heating element control module U22 is used for controlling the working state of the electric heating element of the second cavity. The first data transmission interface of the single-chip microcomputer is connected to the first electric heating element control module. The second data transmission interface of the single-chip microcomputer is connected to the second electric heating element control module.

[0346] In some embodiments, the first data transmission interface of the single-chip microcomputer is the 5th and 6th pins of the single-chip microcomputer, and the second data transmission interface of the single-chip microcomputer is the 3rd and 4th pins of the single-chip microcomputer.

[0347] Exemplarily, referring to FIG. 26, a connection diagram of the first electric heating element control module U21 or the second electric heating element control module U22 provided in the embodiment is shown.

[0348] The first electric heating element control module U21 and the second electric heating element control module U22 respectively comprise: a first triode Q1 (model 8005); a second triode Q2 (model 8005); a fourth resistor R4 (3K), a fifth resistor R5 (10K), a sixth resistor R6 (220Ω), a seventh resistor R7 (2KΩ), an eighth resistor R8 (100KΩ), a third capacitor C3 (1uF), a fourth capacitor C4 (0.47uF), a fifth diode D5 (model IN4148), a sixth diode D6 (model IN4148), a seventh diode D7 (model IN4007), a first relay RLY1 (HJR-3FF-S-H), and a first thyristor T1 (model BT139).

[0349] When FIG. 26 shows the first electric heating element control module U21, the base of the first triode Q1 is connected to the No. 4 pin of the single-chip microcomputer through the fourth resistor R4, and the emitter of the first triode Q1 is grounded; the collector of the first triode Q1 is connected to the G3 end of the first thyristor T1 through the sixth resistor R6; the T2 end of the first thyristor T1 is connected to the first end of the electric heating element of the first cavity; the T1 end of the first thyristor T1 is connected to the second end of the first relay RLY1; the No. 3 pin of the single-chip microcomputer is connected to the first end of the third capacitor C3; the second end of the third capacitor C3 is connected to the anode of the sixth diode D6 and the cathode of the fifth diode D5; the anode of the fifth diode D5 is grounded; the cathode of the sixth diode D6 is connected to the base of the second triode Q2 through the seventh resistor R7; the cathode of the sixth diode D6 is grounded through the fourth capacitor C4; the base of the second triode Q2 is grounded through the eighth resistor R8; the emitter of the second triode Q2 is grounded; the collector of the second triode Q2 is connected to the anode of the seventh diode D7, the third pin of the first relay RLY1, the cathode of the seventh diode D7, and the fourth pin of the first relay RLY1.

[0350] When the second electric heating element control module U22 is shown in FIG. 26, the base of the first triode Q1 is connected with the No. 6 pin of the single-chip microcomputer through the fourth resistor R4, and the emitter of the first triode Q1 is grounded; the collector of the first triode Q1 is connected with the G3 end of the first thyristor T1 through the sixth resistor R6; the T2 end of the first thyristor T1 is connected with the first end of the electric heating element of the first cavity; the T1 end of the first thyristor T1 is connected with the second end of the first relay RLY1; the No. 3 pin of the single-chip microcomputer is connected with the first end of the third capacitor C3; the second end of the third capacitor C3 is connected with the anode of the sixth diode D6 and the cathode of the fifth diode D5; the anode of the fifth diode D5 is grounded; the cathode of the sixth diode D6 is connected with the base of the second triode Q2 through the seventh resistor R7; the cathode of the sixth diode D6 is grounded through the fourth capacitor C4; the base of the second triode Q2 is grounded through the eighth resistor R8; the emitter of the second triode Q2 is grounded; the collector of the second triode Q2 is connected with the anode of the seventh diode D7, the third pin of the first relay RLY1, the cathode of the seventh diode D7 and the fourth pin of the first relay RLY1.

[0351] In the implementation process, the drying machine has a first cavity and a second cavity; the electric heating element control module U2 includes a first electric heating element control module U21 and a second electric heating element control module U22; the first electric heating element control module U21 is used to control the working state of the electric heating element of the first cavity; the second electric heating element control module U22 is used to control the working state of the electric heating element of the second cavity; based on this, the drying machine can realize precise control of the first electric heating element control module U21 and the second electric heating element control module U22.

[0352] In some embodiments, referring to FIG. 27, the control module U1 includes a single-chip microcomputer connected with the illumination lamp control module U6; the drying machine has a first cavity and a second cavity; the illumination lamp control module U6 includes a first illumination lamp control module U61 and a second illumination lamp control module U62; the first illumination lamp control module U61 is used to control the working state of the illumination lamp of the first cavity; the second illumination lamp control module U62 is used to control the working state of the illumination lamp of the second cavity; a first illumination lamp control signal output interface of the single-chip microcomputer is connected with the first illumination lamp control module U61; a second illumination lamp control signal output interface of the single-chip microcomputer is connected with the second illumination lamp control module U62.

[0353] In some embodiments, the first illumination lamp control signal output interface of the single-chip microcomputer is the No. 15 pin of the single-chip microcomputer; and the second illumination lamp control signal output interface of the single-chip microcomputer is the No. 12 pin of the single-chip microcomputer.

[0354] Exemplarily, referring to Fig. 28, it is a schematic diagram of the connection between the single-chip microcomputer and the first illuminating lamp control module U61.

[0355] The first illuminating lamp control module U61 comprises a seventh triode Q7 (S8050), a twenty-fifth resistor R25 (3KΩ), a twenty-sixth resistor R26 (10KΩ), and a first illuminating lamp lamp1 (with an XH-3A interface). The base of the seventh triode Q7 is connected to the 15th pin of the single-chip microcomputer through the twenty-fifth resistor R25. The base of the seventh triode Q7 is grounded through the twenty-sixth resistor R26. The emitter of the seventh triode Q7 is grounded. The collector of the seventh triode Q7 is connected to the 3rd pin of the first illuminating lamp lamp1 of the first cavity. The 1st pin of the first illuminating lamp lamp1 of the first cavity is connected to the power supply VDD1. The 2nd pin of the first illuminating lamp lamp1 of the first cavity is left floating.

[0356] Exemplarily, referring to Fig. 29, it is a schematic diagram of the connection between the single-chip microcomputer and the second illuminating lamp control module U62.

[0357] The second illuminating lamp control module U62 comprises an eighth triode Q8 (S8050), a twenty-seventh resistor R27 (3KΩ), a twenty-eighth resistor R28 (10KΩ), and a second illuminating lamp lamp2 (with an XH-2A interface). The base of the eighth triode Q8 is connected to the 12th pin of the single-chip microcomputer through the twenty-seventh resistor R27. The base of the eighth triode Q8 is grounded through the twenty-eighth resistor R28. The emitter of the eighth triode Q8 is grounded. The collector of the eighth triode Q8 is connected to the 2nd pin of the second illuminating lamp lamp2 of the second cavity. The 1st pin of the second illuminating lamp lamp2 of the second cavity is connected to VDD1.

[0358] In the above implementation process, the illuminating lamp control module U6 comprises the first illuminating lamp control module U61 and the second illuminating lamp control module U62. The single-chip microcomputer is connected to the first illuminating lamp control module U61 and the second illuminating lamp control module U62, so that the single-chip microcomputer can precisely control the first illuminating lamp control module U61 and the second illuminating lamp control module U62, and the intelligentization of the drying machine is realized.

[0359] Referring to FIG. 30, in some embodiments, the control module U1 comprises: a single-chip microcomputer connected with the ultraviolet lamp control module U3; the drying machine has a first cavity and a second cavity; the ultraviolet lamp control module U3 comprises: a first ultraviolet lamp control module U31 and a second ultraviolet lamp control module U32; the first ultraviolet lamp control module U31 is used for controlling the working state of the ultraviolet lamp of the first cavity; the second ultraviolet lamp control module U32 is used for controlling the working state of the ultraviolet lamp connected with the second cavity; the third data transmission interface of the single-chip microcomputer is connected with the first ultraviolet lamp control module U31; the fourth data transmission interface of the single-chip microcomputer is connected with the second ultraviolet lamp control module U32.

[0360] The third data transmission interface of the single-chip microcomputer is the second pin of the single-chip microcomputer; and the fourth data transmission interface of the single-chip microcomputer is the first pin of the single-chip microcomputer.

[0361] Exemplarily, referring to FIG. 31, it is a connection schematic diagram of the first ultraviolet lamp control module U31 and the single-chip microcomputer.

[0362] The first ultraviolet lamp control module U31 comprises: a ninth resistor R9 (3KΩ), a tenth resistor R10 (10KΩ), an eleventh resistor R11 (0Ω), a third triode Q3 (S8050), an eighth diode D8 (IN4007) and a second relay RLY2 (HF5F / 5-HQTF).

[0363] The base of the third triode Q3 is connected with the second pin of the single-chip microcomputer through the ninth resistor R9; the base of the third triode Q3 is grounded through the tenth resistor R10 (10KΩ); the emitter of the third triode Q3 is grounded; the collector of the third triode Q3 is connected with the anode of the eighth diode D8 (IN4007) and the third pin of the second relay RLY2 through the eleventh resistor R11; the cathode of the eighth diode D8 (IN4007) and the fourth pin of the second relay RLY2 are connected with a 5V power supply; the first pin of the second relay RLY2 is connected with the first end of the ultraviolet lamp of the first cavity; and the second pin of the second relay RLY2 is connected with the second end of the ultraviolet lamp of the first cavity.

[0364] Exemplarily, referring to FIG. 32, it is a connection schematic diagram of the second ultraviolet lamp control module U32 and the single-chip microcomputer. The second ultraviolet lamp control module U32 comprises: a twelfth resistor R12 (3KΩ), a thirteenth resistor R13 (10KΩ), a fourth triode Q4 (S8050), a ninth diode D9 (IN4007) and a third relay RLY3 (HF5F / 5-HQTF).

[0365] The base electrode of the fourth triode Q4 is connected to the No. 1 pin of the single-chip microcomputer through the twelfth resistor R12; the base electrode of the fourth triode Q4 is grounded through the thirteenth resistor R13; the emitter electrode of the fourth triode Q4 is grounded; the collector electrode of the fourth triode Q4 is connected to the anode electrode of the ninth diode D9 and the No. 3 pin of the third relay RLY3; the cathode electrode of the ninth diode D9 and the No. 4 pin of the third relay RLY3 are connected to the 5V power supply; the No. 1 pin of the third relay RLY3 is connected to the first end of the ultraviolet lamp of the second cavity; and the No. 2 pin of the third relay RLY3 is connected to the second end of the ultraviolet lamp of the second cavity.

[0366] In the implementation process, the drying machine has a first cavity and a second cavity; the ultraviolet lamp control module U3 includes a first ultraviolet lamp control module U31 and a second ultraviolet lamp control module U32; the single-chip microcomputer is connected to the first ultraviolet lamp control module U31 and the second ultraviolet lamp control module U32, so as to realize precise control of the ultraviolet lamps of the first cavity and the second cavity.

[0367] Referring to FIG. 33, in some embodiments, the control module U1 includes a single-chip microcomputer connected to the fan control module U4; the drying machine has a first cavity and a second cavity; the fan control module U4 includes a first fan control module U41 and a second fan control module U42; the first fan control module U41 is used to control the working state of the fan of the first cavity; the second fan control module U42 is used to control the working state of the fan of the second cavity; the fifth data transmission interface of the single-chip microcomputer is connected to the first fan control module U41; and the sixth data transmission interface of the single-chip microcomputer is connected to the second fan control module U42.

[0368] The fifth data transmission interface of the single-chip microcomputer is the 19th pin of the single-chip microcomputer; and the sixth data transmission interface of the single-chip microcomputer is the 20th pin of the single-chip microcomputer.

[0369] Exemplarily, referring to FIG. 34, it is a connection schematic diagram of the first fan control module U41 or the second fan control module U42 and the single-chip microcomputer; the first fan control module U41 and the second fan control module U42 each include a fifth triode Q5 (model S8050), a fourteenth resistor R14 (3KΩ), a fifteenth resistor R15 (10KΩ), a sixteenth resistor R16 (330KΩ), and a second thyristor T2 (model BT1318);

[0370] When the figure 34 represents the first fan control module U41, the base of the fifth transistor Q5 is connected to the No. 19 pin of the single-chip microcomputer through the fourteenth resistor R14; the base of the fifth transistor Q5 is grounded through the fifteenth resistor R15; the emitter of the fifth transistor Q5 is grounded; the collector of the fifth transistor Q5 is connected to the G3 end of the second thyristor T2 through the sixteenth resistor R16; the T1 end of the second thyristor T2 is connected to the first end of the fan of the first cavity; the T2 end of the second thyristor T2 is connected to the second end of the fan of the first cavity.

[0371] When the figure 34 represents the second fan control module U42, the base of the fifth transistor Q5 is connected to the No. 20 pin of the single-chip microcomputer through the fourteenth resistor R14; the base of the fifth transistor Q5 is grounded through the fifteenth resistor R15; the emitter of the fifth transistor Q5 is grounded; the collector of the fifth transistor Q5 is connected to the G3 end of the second thyristor T2 through the sixteenth resistor R16; the T1 end of the second thyristor T2 is connected to the first end of the fan of the second cavity; the T2 end of the second thyristor T2 is connected to the second end of the fan of the second cavity.

[0372] In the above implementation process, the drying machine has a first cavity and a second cavity; the fan control module U4 includes a first fan control module U41 and a second fan control module U42; the single-chip microcomputer is connected to the first fan control module U41 and the second fan control module U42 respectively, so as to realize accurate control of the fans of the first cavity and the second cavity and improve the intelligent degree of the drying machine.

[0373] Referring to FIG. 35, in some embodiments, the control module U1 includes a single-chip microcomputer connected to the temperature acquisition module U5; the drying machine has a first cavity and a second cavity; the temperature acquisition module U5 includes a first temperature acquisition module U51 and a second temperature acquisition module U52; the first temperature acquisition module U51 is used to acquire the temperature of the first cavity; the second temperature acquisition module U52 is used to acquire the temperature of the second cavity; the seventh data transmission interface of the single-chip microcomputer is connected to the first temperature acquisition module U51; and the eighth data transmission interface of the single-chip microcomputer is connected to the second temperature acquisition module U52.

[0374] The seventh data transmission interface of the single-chip microcomputer is the 17th pin of the single-chip microcomputer; and the eighth data transmission interface of the single-chip microcomputer is the 16th pin of the single-chip microcomputer.

[0375] Exemplarily, referring to FIG. 36, a connection diagram of the first temperature acquisition module U51 and the single-chip microcomputer is shown; the first temperature acquisition circuit includes: a first thermistor NTC1 (with an XH-3A interface), a twenty-first resistor R21 (20KΩ), a twenty-second resistor R22 (1KΩ), and a fifth capacitor C5 (100nF); a No. 1 pin of the NTC1 is connected to the power supply VCC1 through the twenty-first resistor R21; a No. 1 pin of the first thermistor NTC1 is connected to a No. 17 pin of the single-chip microcomputer through the twenty-second resistor R22; a No. 3 pin of the single-chip microcomputer is grounded through the fifth capacitor C5; a No. 2 pin of the first thermistor NTC1 is left floating; and a No. 3 pin of the first thermistor NTC1 is grounded.

[0376] Exemplarily, referring to FIG. 37, a connection diagram of the second temperature acquisition module U52 and the single-chip microcomputer is shown; the second temperature acquisition circuit includes: a second thermistor NTC2 (with an XH-2A pin), a twenty-third resistor R23 (20KΩ), a twenty-fourth resistor R24 (1KΩ), and a sixth capacitor C6 (100nF); a No. 2 pin of the NTC1 is connected to the power supply VCC1 through the twenty-third resistor R23; a No. 1 pin of the NTC1 is connected to a No. 16 pin of the single-chip microcomputer through the twenty-fourth resistor R24; the No. 16 pin of the single-chip microcomputer is grounded through the sixth capacitor C6; and a No. 1 pin of the second thermistor NTC2 is grounded.

[0377] In the above implementation process, the drying machine has a first cavity and a second cavity; the temperature acquisition module U5 includes: a first temperature acquisition module U51 and a second temperature acquisition module U52; the single-chip microcomputer is connected to the first temperature acquisition module U51 and the second temperature acquisition module U52 respectively, so that the single-chip microcomputer can acquire the temperatures of the first cavity and the second cavity respectively, thereby further controlling the working states of the fan of the first cavity and the fan of the second cavity according to the temperatures of the first cavity and the second cavity.

[0378] In some embodiments, the control system further includes: a voltage conversion circuit; the voltage conversion circuit includes a rectification module, a filtering module, and a BP85928D chip circuit; the rectification module, the filtering circuit, and the BP85928D chip circuit are connected to each other to form the voltage conversion circuit; the rectification module is connected to an external power supply; and an output end of the BP85928D chip circuit is connected to the electric heating element control module U2, the ultraviolet lamp control module U3, and the illuminating lamp control module U6.

[0379] Exemplarily, referring to FIG. 38, a first input end of an external power supply (mains) is connected with a fuse RF1 (22Ω) and a rectifier module, the rectifier module comprises a first diode D1 (model number 1N4007) and a second diode D2 (model number 1N4007) connected in sequence; an anode of the first diode D1 is connected with the fuse RF1; a cathode of the first diode D1 is connected with an anode of the second diode D2;

[0380] The first inductor L1, the first electrolytic capacitor E1 and the second electrolytic capacitor E2 form a π-shaped filter circuit;

[0381] A cathode of the second diode D2, a positive pole of the first electrolytic capacitor E1 and a first end of the first inductor L1 are connected; the first electrolytic capacitor E1 is connected with an output end (5V voltage) of the voltage conversion circuit;

[0382] A second end of the first inductor L1, a positive pole of the second electrolytic capacitor E2 and the 5th, 6th, 7th and 8th pins of the BP85928D chip are connected; a negative pole of the first electrolytic capacitor E1 and a negative pole of the second electrolytic capacitor E2 are connected with the output end of the voltage conversion circuit; the 1st pin of the BP85928D chip is left floating; the 2nd pin of the BP85928D chip is connected with a cathode of a third diode D3 (model number ES2J) and connected with the output end of the voltage conversion circuit through a second inductor L2; an anode of the third diode D3 is connected with the ground; the 3rd pin of the BP85928D chip is connected with a cathode of a fourth diode D4 (model number ES2J); an anode of the fourth diode D4 is connected with the output end of the voltage conversion circuit; a first capacitor C1 is connected between the cathodes of the third diode D3 and the fourth diode D4; a third electrolytic capacitor E3, a second capacitor C2 and a first resistor R1 are connected between the output end of the voltage conversion circuit and the ground;

[0383] In some embodiments, the output end of the voltage conversion circuit outputs a power supply VDD through a second resistor R2, the power supply VDD is connected with a third resistor R3 to form a power supply VDD1; the VDD and the VDD1 can supply power to other modules.

[0384] In the above implementation process, the voltage sources required by different modules of the control system can be different, and through the voltage conversion circuit, one external power supply can supply power to multiple modules of the control system.

[0385] In some embodiments, the control system of the drying machine comprises: the control system further comprises: a display module;

[0386] The ninth data transmission interface of the single-chip microcomputer is connected with the display module.

[0387] The ninth data transmission interface of the single-chip microcomputer is the 13th and 14th pins of the single-chip microcomputer.

[0388] In the implementation process, the display module can display various working state data for the user, thereby improving the use experience of the user of the drying machine.

[0389] In some embodiments, the control system of the drying machine further comprises a zero-crossing inspection circuit for detecting an external alternating current signal. The zero-crossing inspection circuit is connected to the 11th pin of the single-chip microcomputer.

[0390] Exemplarily, referring to FIG. 39, the zero-crossing inspection circuit comprises a 17th resistor R17 (1KΩ), an 18th resistor R18 (10KΩ), a 19th resistor R19 (220KΩ), a 20th resistor R20 (220KΩ), a 6th transistor Q6 (model S8050), a 12th diode D10 (model IN4148), and a 7th capacitor C7 (1nF).

[0391] The collector of the 6th transistor Q6 is connected to the 17th resistor and the 11th pin of the single-chip microcomputer; the collector of the 6th transistor Q6 is connected to the 18th resistor R18 and the VDD power supply; the emitter of the 6th transistor Q6 is grounded; the 11th pin of the single-chip microcomputer is grounded through the 7th capacitor C7; the base of the 6th transistor Q6 and the cathode of the 12th diode D10 are connected; the anode of the 12th diode D10 is grounded; and the base of the 6th transistor Q6 is further connected to the zero line of the external alternating current power supply in sequence through the 19th resistor R19, the 20th resistor R20 and the zero line of the external alternating current power supply.

[0392] In some embodiments, the single-chip microcomputer can control the power of the heating element of the first cavity or the heating element of the second cavity through the voltage of the first thyristor T1 and the second thyristor T2.

[0393] In some embodiments, the G3 end of the first thyristor T1 and the second thyristor T2 is a control end.

[0394] In some embodiments, the T1 end of the first thyristor T1 and the T1 end of the second thyristor T2 are anodes, and the T2 end of the first thyristor T1 and the T2 end of the second thyristor T2 are cathodes, or the T1 end of the first thyristor T1 and the T1 end of the second thyristor T2 are cathodes, and the T2 end of the first thyristor T1 and the T2 end of the second thyristor T2 are anodes.

[0395] The embodiment also provides an electronic device, please refer to FIG. 40, which is a structural block diagram of an electronic device provided by the embodiment. The electronic device can include a processor 81, a communication interface 82, a memory 83 and at least one communication bus 84. The communication bus 84 is used to realize the direct connection communication of these components. In the embodiment, the communication interface 82 of the electronic device is used to communicate with other node devices. The processor 81 can be an integrated circuit chip with signal processing capability.

[0396] The processor 81 can be a general processor, including a central processing unit (CPU), a network processor (NP), etc. The processor 81 can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments can be implemented or executed. The general processor can be a microprocessor or the processor 81 can also be any conventional processor.

[0397] The memory 83 can be, but is not limited to, a random access memory (RAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), etc. The memory 83 stores computer readable instructions, which when executed by the processor 81, the electronic device can perform each step involved in the above method embodiments.

[0398] Optionally, the electronic device can also include a storage controller, an input / output unit.

[0399] The memory 83, the storage controller, the processor 81, the peripheral interface, the input / output unit are directly or indirectly electrically connected to each other to realize data transmission or interaction. For example, these elements can be electrically connected to each other through one or more communication buses 84. The processor 81 is used to execute the executable modules stored in the memory 83, such as software function modules or computer programs included in the electronic device.

[0400] The input / output unit is used to provide the user with creating tasks and creating optional time periods or preset execution times for the tasks to realize the interaction between the user and the server. The input / output unit can be, but is not limited to, a mouse and a keyboard, etc.

[0401] It can be understood that the structure shown in FIG. 40 is only schematic, and the electronic device can also include more or fewer components than those shown in FIG. 40, or have a different configuration from that shown in FIG. 40. The components shown in FIG. 40 can be realized by hardware, software or a combination thereof.

[0402] The embodiment further provides a storage medium, and the storage medium stores instructions, when the instructions are executed on a computer, the computer program is executed by a processor to implement the method of the method embodiment. To avoid repetition, details are not described here.

[0403] The embodiment further provides a computer program product, which, when executed on a computer, causes the computer to execute the method of the method embodiment.

[0404] In the several embodiments provided, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiment described above is only illustrative. For example, the flowchart and block diagram in the accompanying drawings show the possible implementation architecture, function and operation of the apparatus, method and computer program product according to the embodiments. In this regard, each block in the flowchart or block diagram can represent a module, a program segment or a part of code, which contains one or more executable instructions for implementing the specified logic function. It should also be noted that, in some alternative implementations, the functions noted in the blocks can occur in different orders from those noted in the accompanying drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes in reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for executing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0405] In addition, the functional modules in the various embodiments can be integrated together to form a separate part, and can exist independently, or two or more modules can be integrated to form a separate part.

[0406] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the embodiments can essentially or contribute to the prior art or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the embodiments method. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0407] The above merely provides examples and is not intended to limit the scope of the application. Any modifications, equivalent replacements, improvements, and the like made by those of ordinary skill in the art based on the principles and technical scope of the application shall fall within the scope of the application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0408] The above merely provides examples and is not intended to limit the scope of the application. Any modifications, equivalent replacements, improvements, and the like made by those of ordinary skill in the art based on the principles and technical scope of the application shall fall within the scope of the application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0409] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

A dryer characterized by comprising: The dryer comprises: an inner chamber; an air supply assembly, an air supply end of the air supply assembly being arranged towards the inner chamber; a temperature sensor arranged inside the inner chamber and configured to detect a temperature of the inner chamber; a control device connected to the air supply assembly and the temperature sensor, and configured to control the air supply assembly to operate in a first operation mode, and control the air supply assembly to operate in a second operation mode when the temperature of the inner chamber is greater than a first temperature threshold value, wherein a first power of the air supply assembly in the first operation mode is greater than a second power of the air supply assembly in the second operation mode. The drying machine according to claim 1, characterized in that The air supply assembly comprises a fan and an electric heating element, and the fan is configured to deliver heat emitted by the electric heating element into the inner chamber. The drying machine according to claim 1, characterized in that The dryer further comprises a humidity sensor arranged inside the inner chamber and connected to the control device, and configured to detect a humidity of the inner chamber. The control device is further configured to control the air supply assembly to stop operating when the humidity of the inner chamber is within a preset humidity range. The drying machine according to claim 1, characterized in that The dryer further comprises an image sensor arranged inside the inner chamber and connected to the control device, and configured to acquire an internal image of the inner chamber. The control device is further configured to identify a drying object according to the internal image of the inner chamber. The control device is further configured to determine an operation mode of the dryer according to the drying object. The drying machine according to claim 1, characterized in that The dryer further comprises a weight sensor arranged inside the inner chamber and configured to detect a weight of the drying object in the inner chamber. The control device is further configured to control an operation state of the air supply assembly according to change data of the weight of the drying object. The drying machine according to claim 2, characterized in that The dryer further comprises a deflector arranged between the fan and the inner chamber, and the deflector is rotatable. The control device is further configured to control the deflector to rotate. The drying machine according to claim 1, characterized in that The dryer comprises a plurality of inner chambers, and a blocking structure is formed between the plurality of inner chambers. The dryer further comprises an exhaust fan connected to the control device, and an air supply end of the exhaust fan is arranged towards the blocking structure. The control device is further configured to control an operation state of the exhaust fan according to internal temperatures of the plurality of inner chambers. The drying machine according to claim 7, characterized in that The control device is further configured to start the exhaust fan when a temperature difference between the plurality of inner chambers is less than or equal to a preset temperature difference threshold value. The drying machine according to claim 8, characterized in that The control device is further configured to adjust a rotating speed of the exhaust fan according to the temperature difference between the plurality of inner chambers. The drying machine according to claim 1, characterized in that The temperature sensor comprises a plurality of temperature sensors arranged at different positions of the inner chamber, and the plurality of temperature sensors are configured to detect temperatures at the different positions of the inner chamber. The control device is further configured to control the fan of the air supply assembly to rotate according to the temperatures at the different positions of the inner chamber. The drying machine according to claim 1, characterized in that The dryer further comprises a key module connected to the control device. The control device is further configured to determine an operation mode corresponding to a triggered key module. The drying machine according to claim 1, characterized in that The control device is in communication connection with an external device, and configured to receive a control instruction sent by the external device, and control an operation state of the air supply assembly according to the control instruction. A control method of a dryer characterized by, The method is applied to the dryer of any one of claims 1-12, and the method comprises: control the air supply assembly to operate in a first operation mode; control the air supply assembly to operate in a second operation mode when the temperature of the inner chamber detected by the temperature sensor is greater than a first temperature threshold; the first power of the air supply assembly in the first operation mode is greater than the second power of the air supply assembly in the second operation mode. The control method of the dryer according to claim 13, characterized in that The control of the air supply assembly to operate in a first operation mode comprises: control the fan of the air supply assembly to operate at a set speed, and control the electric heating element of the air supply assembly to operate at the first power. The control method of the dryer according to claim 14, characterized in that The control of the air supply assembly to operate in a second operation mode when the temperature of the inner chamber is greater than a first temperature threshold comprises: control the electric heating element of the air supply assembly to operate at the second power, and control the fan of the air supply assembly to operate at the set speed when the temperature of the inner chamber is greater than the first temperature threshold. The control method of the dryer according to claim 15, characterized in that The control of the electric heating element of the air supply assembly to operate at the second power, and the control of the fan of the air supply assembly to operate at the set speed when the temperature of the inner chamber is greater than the first temperature threshold comprises: control the electric heating element of the air supply assembly to operate at the second power, and control the fan of the air supply assembly to operate at the set speed when the temperature of the inner chamber is less than a second temperature threshold; control the electric heating element of the air supply assembly to stop operating, and control the fan of the air supply assembly to operate at the set speed when the temperature of the inner chamber is greater than a third temperature threshold; The second temperature threshold is less than the third temperature threshold. The control method of the dryer according to claim 13, characterized in that The second power is 75% to 85% of the first power. The control method of the dryer according to claim 17, characterized in that The second power is 80% of the first power. The control method of the dryer according to claim 14, characterized in that The control of the air supply assembly to operate in a second operation mode when the temperature of the inner chamber detected by the temperature sensor is greater than a first temperature threshold comprises: control the electric heating element of the air supply assembly to operate at a switching frequency and the second power, and control the fan of the air supply assembly to operate at a set air speed when the temperature of the inner chamber is less than a second temperature threshold; control the electric heating element of the air supply assembly to stop operating, and control the fan of the air supply assembly to operate at the set air speed when the temperature of the inner chamber is greater than a third temperature threshold; The second temperature threshold is less than the third temperature threshold. The control method of the dryer according to claim 14, characterized in that The method further comprises: obtain temperature fluctuation information of the inner chamber when the air supply assembly operates in the second operation mode; adjust the second power according to the temperature fluctuation information of the inner chamber. The control method of the dryer according to claim 14, characterized in that The method further comprises: adjust the second power according to one or more of the number of times of starting operation and the number of times of stopping operation of the air supply assembly when the air supply assembly operates in the second operation mode. The control method of the dryer according to claim 19, characterized in that The method further comprises: obtain temperature fluctuation information of the inner chamber when the air supply assembly operates in the second operation mode; adjust the switching frequency of the electric heating element of the air supply assembly according to the temperature fluctuation information of the inner chamber. The control method of the dryer according to claim 19, characterized in that, The method further comprises: adjust the switching frequency of the electric heating element of the air supply assembly according to one or more of the number of times of starting operation and the number of times of stopping operation of the air supply assembly when the air supply assembly operates in the second operation mode. The control method of the dryer according to claim 20 or 22, characterized in that, The temperature fluctuation information of the inner chamber of the air supply assembly when the air supply assembly operates in the second working mode includes: The temperature fluctuation information of the inner chamber of the air supply assembly is acquired in a monitoring period when the air supply assembly operates in the second working mode. The control method of the dryer according to claim 21 or 23, characterized in that, The number of times of starting operation and the number of times of stopping operation are acquired by the following steps: The number of times of starting operation and the number of times of stopping operation of the fan of the air supply assembly are acquired in a monitoring period when the air supply assembly operates in the second working mode. The control method of the dryer according to claim 14, characterized in that, The method further includes: controlling the working state of the air supply assembly according to the temperature of the inner chamber and the duration of the temperature of the inner chamber. The control method of the dryer according to claim 26, characterized in that The controlling the working state of the air supply assembly according to the temperature of the inner chamber and the duration of the temperature of the inner chamber includes: When the temperature of the inner chamber is within a preset temperature range, and the cumulative duration of the temperature of the inner chamber within the preset temperature range is greater than or equal to a duration threshold, the air supply assembly is controlled to stop operating. The control method of the dryer according to claim 27, characterized in that The controlling the air supply assembly to stop operating when the temperature of the inner chamber is within a preset temperature range, and the cumulative duration of the temperature of the inner chamber within the preset temperature range is greater than or equal to a duration threshold includes: When the temperature of the inner chamber is within the preset temperature range, start timing; When the temperature of the inner chamber is not within the preset temperature range, pause timing; When the timing duration is greater than or equal to the duration threshold, control the air supply assembly to stop operating. The control method of the dryer according to claim 14, characterized in that, The method further includes: When the humidity of the inner chamber detected by the humidity sensor is within a preset humidity range, control the air supply assembly to stop operating. The control method of the dryer according to claim 29, characterized in that The controlling the air supply assembly to stop operating when the humidity of the inner chamber detected by the humidity sensor is within a preset humidity range includes: When the humidity of the inner chamber decreases to within the preset humidity range, control the air supply assembly to stop operating. The control method of the dryer according to claim 30, characterized in that The controlling the air supply assembly to stop operating when the humidity of the inner chamber decreases to within the preset humidity range includes: Determine whether the humidity of the inner chamber is in a decreasing trend; When the humidity of the inner chamber is in a decreasing trend, determine whether the humidity of the inner chamber is within the preset humidity range, and if so, control the air supply assembly to stop operating. The control method of the dryer according to claim 30, characterized in that The controlling the air supply assembly to stop operating when the humidity of the inner chamber decreases to within the preset humidity range includes: When the humidity of the inner chamber is in a decreasing trend, determine whether the humidity of the inner chamber is lower than a first humidity threshold, and if so, control the air supply assembly to stop operating; the first humidity threshold is less than an upper limit value of the preset humidity range. The control method of the dryer according to claim 31 or 32, characterized in that, The determining whether the humidity of the inner chamber is in a decreasing trend includes: Determine whether the decrease amount of the humidity of the inner chamber within a preset time is greater than a preset humidity decrease amount, and if so, determine that the dryer is in a decreasing trend. The control method of the dryer according to claim 29, characterized in that The controlling the air supply assembly to stop operating when the humidity of the inner chamber detected by the humidity sensor is within a preset humidity range includes: When the humidity of the inner chamber is within a preset humidity range and the working time of the dryer is greater than or equal to a preset working time, the air supply assembly is controlled to stop running. The control method of the dryer according to claim 34, characterized in that The method further comprises: When the humidity of the inner chamber is within the preset humidity range, the air supply assembly is controlled to stop running. The method further comprises: The control method of the dryer according to claim 29, characterized in that When the humidity of the inner chamber is within the preset humidity range, the air supply assembly is controlled to stop running. The method further comprises: After the humidity of the inner chamber exceeds a second humidity threshold value and the humidity of the inner chamber falls within the preset humidity range, the air supply assembly is controlled to stop running. The control method of the dryer according to claim 14, characterized in that, The second humidity threshold value is greater than an upper limit value of the preset humidity range. The control method of the dryer according to claim 37, characterized in that The method further comprises: The method further comprises: The control method of the dryer according to claim 14, characterized in that When the percentage of the weight reduction of the drying object exceeds a percentage threshold value, the air supply assembly is controlled to stop running. The method further comprises: According to the image of the inner chamber detected by the image sensor, the drying object is identified. The control method of the dryer according to claim 14, characterized in that According to the drying object, the working mode of the dryer is determined. The method further comprises: Distribution information of a plurality of drying objects in the inner chamber is acquired. The control method of the dryer according to claim 40, characterized in that According to the distribution information, the air supply assembly is controlled. The method further comprises: The control method of the dryer according to claim 14, characterized in that According to the distribution information, one or more of the following is determined: a set rotating speed of a fan of the air supply assembly, a first power of an electric heating element of the air supply assembly, and a number of air supply assemblies whose fans are turned on. The method further comprises: Distribution information of a plurality of drying objects in the inner chamber is acquired. The control method of the dryer according to any one of claims 40 to 42, characterized in that According to the distribution information, the rotating direction of the air deflector is controlled. The control method of the dryer according to claim 14, characterized in that The inner chamber is provided with a plurality of storage layers; and the distribution information includes the storage layer where the drying object is located. The control method of the dryer according to claim 14, characterized in that The method further comprises: according to the temperatures of different positions in the inner chamber detected by a plurality of temperature sensors, the rotating direction of the air deflector is controlled. The control method of the dryer according to claim 45, characterized in that The method further comprises: according to the internal temperatures of a plurality of inner chambers, the working state of the auxiliary exhaust fan is controlled. The method further comprises: The control method of the dryer according to claim 45, characterized in that, When the temperature difference between the plurality of inner chambers is less than or equal to a preset temperature difference threshold value, the auxiliary exhaust fan is turned on. The method further comprises: The control method of the dryer according to claim 45, characterized in that According to the temperature difference between the plurality of inner chambers, the rotating speed of the auxiliary exhaust fan when running is adjusted. The method further comprises: The control method of the dryer according to claim 48, characterized in that According to the internal temperature of the inner chamber with the lowest temperature among the plurality of inner chambers, the working state of the auxiliary exhaust fan is controlled. The method further comprises: According to the internal temperature of the inner chamber with the lowest temperature among the plurality of inner chambers, the working state of the auxiliary exhaust fan is controlled. When the internal temperature of the inner chamber with the lowest temperature exceeds a set working temperature of the inner chamber with the lowest temperature, the exhaust promoting fan is started. The control method of the dryer according to claim 48, characterized in that The method of controlling the working state of the exhaust promoting fan according to the internal temperature of the inner chamber with the lowest temperature comprises: Adjusting the rotating speed of the exhaust promoting fan according to the internal temperature of the inner chamber with the lowest temperature. The control method of the dryer according to claim 14, characterized in that The method further comprises determining the working mode of the drying machine according to the triggered key module. The control method of the dryer according to claim 14, characterized in that The method further comprises receiving a control instruction and controlling the working state of the drying machine according to the control instruction. An electronic device, characterized by The method further comprises: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method according to any one of claims 13-52. A computer-readable storage medium, characterized by The computer readable storage medium stores instructions, and when the instructions are executed on a computer, the computer executes the method according to any one of claims 13-52.

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