Air supply device and control method applied to air supply device

Abstract

The invention provides an air supply device and a control method applied to the air supply device, and the air supply device comprises an air supply part which is configured to directionally generate airflow; the heating part is configured to heat airflow flowing through the air supply device; the first detection part is configured to obtain the working voltage of the air supply device; and the control part is configured to adjust operation parameters of the air supply device according to the working voltage.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electrical equipment, and in particular to an air supply device and a control method applied to the air supply device. Background Art

[0002] Air supply units equipped with a heating element heat the air flowing through them during the air supply process, delivering warm air to the target space. These units are designed to optimize for a specific voltage (e.g., the unit's rated voltage) to ensure the heating element operates at optimal heating power under that voltage, achieving the desired temperature in the target space.

[0003] However, in the actual application of air supply devices, due to the differences in mains voltage standards across regions, when the air supply device is operated at a voltage other than the standard voltage, the heating power of the heating unit will deviate from the optimal value. This will cause the heat generated by the heating unit to decrease or increase, resulting in insufficient warmth or overheating of the target space, thus affecting the user experience. To overcome this problem caused by voltage differences, the related art will equip the air supply device with a corresponding voltage conversion device to adjust the mains voltage to the standard voltage of the air supply device, but this approach will obviously increase the manufacturing cost of the air supply device.

[0004] Therefore, how to provide an air supply device and a control method using the air supply device so as to make the power of the heating part as close to the optimal value as possible without configuring a voltage conversion device has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] In view of the above-mentioned background technical problems, the present disclosure provides an air supply device and a control method applied to the air supply device to at least partially solve the above-mentioned problems.

[0006] According to one aspect of the present disclosure, an air supply device is provided, including an air supply unit configured to generate airflow in a directional manner; a heating unit configured to heat the airflow flowing through the above-mentioned air supply device; a first detection unit configured to obtain the working voltage of the above-mentioned air supply device; and a control unit configured to adjust the operating parameters of the above-mentioned air supply device based on the above-mentioned working voltage.

[0007] In some exemplary embodiments, the operating parameters include the air supply volume output by the air supply unit; the control unit is configured to control the air supply volume according to the operating voltage, and the air supply volume is positively correlated with the operating voltage.

[0008] In some exemplary embodiments, the air supply unit has a minimum air supply volume, and the minimum air supply volume is positively correlated with the operating voltage; wherein the air supply unit is configured to operate in a state where the air supply volume is greater than or equal to the minimum air supply volume.

[0009] In some exemplary embodiments, the air supply unit includes: a motor; and fan blades disposed at an output end of the motor, and the control unit is configured to adjust the rotational speed of the motor according to the operating voltage.

[0010] In some exemplary embodiments, the heating portion includes a heating plate group, at least a portion of the heating plates in the heating plate group has a first step resistance, and at least another portion of the heating plates in the heating plate group has a second step resistance; wherein the first step resistance should be configured to be greater than the second step resistance; and / or, the heating plate group includes a first heating plate group and a second heating plate group, and the first heating plate group and the second heating plate group are arranged side by side along the first direction; and / or, the first heating plate group includes at least one first heating plate, and the second heating plate group includes at least one second heating plate; wherein the first heating plate is adapted to the first rated voltage, the second heating plate is adapted to the second rated voltage, and the first rated voltage is configured to be greater than the second rated voltage; and / or, the first heating plate group has at least two first heating plates, and the at least two first heating plates are arranged sequentially along the second direction, and the second direction forms an angle with the first direction.

[0011] In some exemplary embodiments, the heating portion includes a heating plate group, at least a portion of the heating plates in the heating plate group has a first step resistance, and at least another portion of the heating plates in the heating plate group has a second step resistance; wherein the first step resistance should be configured to be greater than the second step resistance; and / or, the heating plate group includes a first heating plate group and a second heating plate group, and the first heating plate group and the second heating plate group are arranged side by side along the first direction; and / or, the first heating plate group includes at least one first heating plate, and the second heating plate group includes at least one second heating plate; wherein the first heating plate is adapted to the first rated voltage, the second heating plate is adapted to the second rated voltage, and the first rated voltage is configured to be greater than the second rated voltage; and / or, the first heating plate group further has at least one second heating plate, and the second heating plate and the first heating plate are arranged sequentially or alternately along the second direction, and the second direction forms an angle with the first direction.

[0012] In some exemplary embodiments, the operating parameters further include a heating power of the heating unit; the control unit is configured to control the heating power according to the operating voltage, and the heating power is negatively correlated with the operating voltage.

[0013] In some exemplary embodiments, the control unit is further configured to obtain a target operating parameter corresponding to the operating voltage based on the operating voltage.

[0014] In some exemplary embodiments, the control unit is further configured to obtain a target preset voltage corresponding to the operating voltage based on the operating voltage; wherein the control unit has at least two different preset voltages, and the control unit further obtains the target operating parameters corresponding to the target preset voltage through the target preset voltage.

[0015] In some exemplary embodiments, the control unit has at least two control gears, at least two of the control gears respectively correspond to different preset operating parameters, and at least two of the control gears correspond to the same operating voltage; the control unit is also configured to determine a target control gear from at least two of the control gears in response to receiving a gear control signal, and control the air supply device to operate with the target operating parameters based on the target control gear.

[0016] In some exemplary embodiments, the control unit is further configured to calculate the target operating parameter based on the operating voltage.

[0017] In some exemplary embodiments, the control unit is further configured to obtain target operating parameters based on a ratio of the operating voltage to the target preset voltage and preset operating parameters.

[0018] The present disclosure also provides a control method applied to an air supply device, comprising: obtaining an operating voltage of the air supply device; and adjusting operating parameters of the air supply device according to the operating voltage.

[0019] In some exemplary embodiments, the above-mentioned adjustment of the operating parameters of the air supply device based on the working voltage includes: adjusting the air supply volume of the air supply part and / or adjusting the heating power of the heating part based on the above-mentioned working voltage; wherein the above-mentioned air supply volume is positively correlated with the above-mentioned working voltage, and the above-mentioned heating power is negatively correlated with the above-mentioned working voltage.

[0020] In some exemplary embodiments, the adjusting of the operating parameters of the air supply device according to the operating voltage further includes: obtaining target operating parameters corresponding to the operating voltage according to the operating voltage.

[0021] In some illustrative embodiments, the above-mentioned target operating parameters corresponding to the above-mentioned operating voltage are obtained based on the above-mentioned operating voltage, including: obtaining the target preset voltage corresponding to the above-mentioned operating voltage based on the above-mentioned operating voltage; obtaining the above-mentioned target operating parameters corresponding to the above-mentioned target preset voltage through the above-mentioned target preset voltage; the above-mentioned air supply device operates with the above-mentioned target operating parameters; wherein the above-mentioned air supply device has at least two different above-mentioned preset voltages.

[0022] In some exemplary embodiments, obtaining the target operating parameter corresponding to the operating voltage based on the operating voltage includes: calculating the target operating parameter based on the operating voltage.

[0023] In some exemplary embodiments, calculating the target operating parameter based on the operating voltage includes: obtaining the target operating parameter based on a ratio of the operating voltage to a target preset voltage and preset operating parameters.

[0024] In some exemplary embodiments, the operating parameters are calculated based on the ratio, a preset operating constant, and a constant k, where k is greater than 0.

[0025] In some exemplary embodiments, the target operating parameter is calculated based on the operating voltage, including: the target operating parameter=(the operating voltage / the target preset voltage)×the preset operating parameter×k.

[0026] In some exemplary embodiments, 0.8≤k≤1.6.

[0027] In some exemplary embodiments, the above-mentioned calculation of the above-mentioned target operating parameters based on the above-mentioned operating voltage includes: the relationship between the above-mentioned target operating parameters and the above-mentioned operating voltage satisfies the following function, the above-mentioned operating voltage = constant a×the above-mentioned target operating parameter²+constant b×the above-mentioned target operating parameter+constant c.

[0028] In some exemplary embodiments, when the target operating parameter is the air supply volume, 0.001≤a≤0.01, b<0, 250≤c≤350; when the target operating parameter is the heating power, -0.1≤a<0, 30≤b≤40, c<0.

[0029] In some illustrative embodiments, the above-mentioned adjustment of the operating parameters of the air supply device based on the working voltage includes: when the above-mentioned working voltage is in a preset voltage range, adjusting the operating parameters of the above-mentioned air supply device; when the above-mentioned working voltage is outside the above-mentioned preset voltage range, adjusting the above-mentioned air supply device to stop operating, and / or outputting an alarm signal.

[0030] In some exemplary embodiments, when the operating voltage is within a preset voltage range, adjusting the operating parameters of the air supply device includes: obtaining the ambient temperature of the target space; and adjusting the operating parameters according to the ambient temperature.

[0031] In some exemplary embodiments, adjusting the operating parameters according to the ambient temperature includes: maintaining the operating parameters of the air supply device when the ambient temperature is within a preset temperature range.

[0032] In some illustrative embodiments, the above-mentioned adjustment of the operating parameters according to the above-mentioned ambient temperature also includes: when the above-mentioned ambient temperature is lower than the lower limit of the above-mentioned preset temperature range, increasing the air output of the above-mentioned air supply part and / or increasing the heating power of the above-mentioned heating part until the above-mentioned ambient temperature is within the above-mentioned preset temperature range; when the above-mentioned ambient temperature is higher than the upper limit of the above-mentioned preset temperature range, increasing the air output of the above-mentioned air supply part and / or reducing the heating power of the above-mentioned heating part until the above-mentioned ambient temperature is within the above-mentioned preset temperature range.

[0033] In some exemplary embodiments, the ambient temperature includes the return air temperature of the air supply device.

[0034] In some exemplary embodiments, maintaining the operating parameters of the air supply device includes: the operating parameters refer to the target operating parameters determined according to the operating voltage, or maintaining the current operating parameters of the air supply device.

[0035] Based on the aforementioned air supply device and control method for the air supply device, the air supply device includes an air supply unit and a heating unit. The air supply unit is configured to generate airflow, and the heating unit is configured to heat the airflow. The first detection unit is configured to detect the operating voltage of the heating unit, and the control unit adjusts the operating parameters of the air supply device based on the operating voltage to maintain the corresponding heating performance of the air supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of a module of an air supply device according to an exemplary embodiment of the present disclosure;

[0037] Figure 2 is a schematic structural diagram of a heating unit according to an exemplary embodiment of the present disclosure;

[0038] Figure 3 is a structural schematic diagram of an air supply device according to an exemplary embodiment of the present disclosure;

[0039] Figure 4 This is a curve of air supply volume and operating voltage change under a constant temperature of 59°C;

[0040] Figure 5 This is a graph showing the change in operating voltage and heating power at a constant temperature of 59°C.

[0041] Figure 6 is a flow chart of a control method according to an exemplary embodiment of the present disclosure;

[0042] Figure 7 yes Figure 6 Flowchart of step S120;

[0043] Figure 8is a flow chart according to a fourth embodiment of the present disclosure;

[0044] Figure 9 is a flowchart according to a fifth embodiment of the present disclosure;

[0045] Figure 10 is a flowchart according to the sixth embodiment of the present disclosure.

[0046] In the drawings, the meanings of the reference numerals are as follows:

[0047] 100. Air supply device; 101. First detection unit; 102. Heating unit; 1021. First heating plate group; 1022. Second heating plate group; 1023. First heating plate; 1024. Second heating plate; 103. Second detection unit; 104. Control unit; 105. Air supply unit; 1051. Fan blades; 1052. Motor; 1053. Volute; 106. Heat exchange unit; 107. Basket; 108. Air inlet; 109. Air outlet. DETAILED DESCRIPTION

[0048] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0049] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise," "include," etc. used herein indicate the presence of the features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0050] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0051] When expressions such as “at least one of A, B, and C, etc.” are used, they should generally be interpreted in accordance with the meaning commonly understood by those skilled in the art. For example, “a system having at least one of A, B, and C” should include but is not limited to systems having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, and C, etc. When expressions such as “at least one of A, B, or C, etc.” are used, they should generally be interpreted in accordance with the meaning commonly understood by those skilled in the art. For example, “a system having at least one of A, B, or C” should include but is not limited to systems having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, and C, etc.

[0052] For air supply devices equipped with a heating unit, the air flowing through the heating unit can be heated during air supply to output warm air to the target space. Electric heating is a common choice for the implementation of the heating unit. Specifically, a PTC heating unit based on a positive temperature coefficient (PTC) material can be used, which has a self-limiting temperature characteristic. When the temperature of the PTC heating unit reaches the Curie temperature, the resistance of the PTC heating unit will increase sharply, thereby limiting the current and preventing overheating. However, when the PTC heating unit currently on the market is used in heaters, its electrical characteristics are optimized for a specific standard voltage (such as 100V, 110V, 220V or 240V), and therefore, it can only be adapted to this operating voltage.

[0053] However, a common problem in practical applications is that utility voltage standards vary across different regions of the world. Consequently, when the standard voltage of the air supply unit does not match the regional operating voltage, the heating unit may generate less or more heat, impacting the user experience. Related technologies typically employ voltage conversion devices (such as transformers) to adjust the operating voltage to the standard voltage of the air supply unit. However, this approach significantly increases product manufacturing costs.

[0054] In view of this, how to provide an air supply device that can operate within a wider voltage range and a control method applied to the air supply device has become a technical problem that needs to be solved urgently.

[0055] First embodiment

[0056] Figure 1 Schematic diagram of a module of an air supply device according to an exemplary embodiment of the present disclosure.

[0057] The present disclosure provides an air supply device 100, referring to Figure 1 As shown, the air supply device 100 includes a housing, a heating unit 102, an air supply unit 105, a first detection unit 101, and a control unit 104. The housing serves as the installation base for the air supply device 100, and the heating unit 102, the air supply unit 105, the first detection unit 101, and the control unit 104 are, but are not limited to, disposed within the housing. The air supply unit 105 is configured to generate a directional airflow. The heating unit 102 is configured to heat the airflow flowing through the air supply device 100. The first detection unit 101 is configured to obtain the operating voltage of the air supply device 100. The control unit 104 is configured to adjust the operating parameters of the air supply device 100 based on the operating voltage.

[0058] According to an embodiment of the present disclosure, the heating unit 102 includes a heating plate group, at least a portion of the heating plates in the heating plate group has a first step resistance, and at least another portion of the heating plates in the heating plate group has a second step resistance. The first step resistance should be configured to be greater than the second step resistance.

[0059] In some exemplary embodiments, heaters with different step resistances in a heater set (such as the first heater 1023 and the second heater 1024 described below) are adapted to different first rated voltages or second rated voltages. Specifically, this can be understood as configuring at least two heaters in the heater set to have different step resistances (also referred to as high-resistance resistors). Based on the premise that the first rated voltage is greater than the second rated voltage, the first step resistance of the heater adapted to the first rated voltage should be configured to be greater than the second step resistance of the heater adapted to the second rated voltage. The above-mentioned heaters include, but are not limited to, ceramic heating elements, specifically heaters based on positive temperature coefficient (PTC) materials.

[0060] In this embodiment, by configuring a heating element assembly with at least two heating elements adapted to different rated voltages, the heater can operate at an operating voltage that meets either the first rated voltage or the second rated voltage. This allows the heater to be adapted to a wider range of operating voltages, expanding the heater's power usage scenarios.

[0061] When the first operating voltage of the power usage scenario is close to or equal to the first rated voltage, the heating plate in the heating plate group adapted to the first rated voltage outputs at the rated power, and the heating plate adapted to the second rated voltage is in an overvoltage state at this time, and therefore, it also outputs at the rated power. In this way, the heater can operate at the first rated power that matches the first operating voltage.

[0062] When the second operating voltage in another power usage scenario is close to or equal to the second rated voltage (i.e., lower than the first rated voltage), the heater elements in the heater element group adapted to the second rated voltage output at rated power, while the heater elements adapted to the first rated voltage are now in an undervoltage state and, therefore, output at a lower power level than the rated power. Therefore, simply by designing the number of heater elements in the heater element group adapted to different rated voltages (i.e., the first rated voltage and the second rated voltage), the heater can operate at the second rated power that matches the second operating voltage. This allows the heater and the ventilation equipment equipped with the heater to operate within a wider operating voltage range while maintaining corresponding heating performance, without the need for voltage conversion accessories (such as a transformer).

[0063] It should be noted that while the heater elements adapted to the second rated voltage are in an overvoltage state when operating at the first operating voltage, due to the self-limiting temperature characteristics of the PTC material, when these heater elements reach the Curie temperature, their resistance reaches a step resistance (also known as a high-resistance resistance), which is much higher than the low-resistance resistance at low temperatures. Therefore, the step resistance limits the current flowing through the heater elements and maintains a constant surface temperature. This prevents the heater elements from being damaged by overvoltage and overheating.

[0064] According to an embodiment of the present disclosure, the heating plate group of the heater includes a first heating plate group 1021 and a second heating plate group 1022 , and the first heating plate group 1021 and the second heating plate group 1022 are arranged side by side along a first direction.

[0065] In some exemplary embodiments, the heating plates in the first heating plate group 1021 and the heating plates in the second heating plate group 1022 are arranged side by side at intervals along a first direction to form air circulation channels on both sides of the first heating plate group 1021 and the second heating plate group 1022.

[0066] In some exemplary embodiments, the air supply device further includes a heat exchange unit 106. The heat exchange unit 106 is disposed in the aforementioned air circulation channel. Specifically, the heat exchange unit 106 includes, but is not limited to, a heat exchanger having wiring terminals, and the wiring terminals are in contact with the corresponding first heating plate group 1021 and / or second heating plate group 1022 to form heat conduction. In this way, the heat exchange area of ​​the heating unit can be increased to transfer the heat generated by the heating unit to the heat exchange unit 106, and the air flowing through the air circulation channel can be fully heat-exchanged with the heat exchange unit 106, thereby generating hot air (i.e., hot air flow) that flows directionally from the air inlet side to the air outlet side of the air circulation channel.

[0067] In some exemplary embodiments, the heat exchanger employed in heat exchange portion 106 includes, but is not limited to, fins, and can be specifically made of aluminum, copper, or any other material with good thermal conductivity. Taking the example of heat exchange portion 106 employing fins, the plurality of fins extending along the air flow passage can specifically be in a second direction, where the second direction forms an angle with the first direction, such as 60°, 70°, 80°, 90°, 100°, 110°, or any other angle. Specifically, the fins include, but are not limited to, flat fins, corrugated fins, spiral fins, staggered fins, and any other fin structures and combinations thereof.

[0068] According to an exemplary embodiment of the present disclosure, the first heating plate group 1021 includes at least one first heating plate 1023, and the second heating plate group 1022 includes at least one second heating plate 1024. The first heating plate 1023 is adapted to a first rated voltage, and the second heating plate 1024 is adapted to a second rated voltage, where the first rated voltage is configured to be greater than the second rated voltage.

[0069] In some exemplary embodiments, the first rated voltage includes but is not limited to being configured as 240V, 220V, or any other voltage. Similarly, the second rated voltage includes but is not limited to being configured as 110V, 100V, or any other voltage.

[0070] According to another exemplary embodiment of the present disclosure, the first heating plate group 1021 has at least two first heating plates 1023 , and the at least two first heating plates 1023 are arranged sequentially along a second direction, and the second direction forms an angle with the first direction.

[0071] According to an embodiment of the present disclosure, the first heating plate group 1021 further includes at least one second heating plate 1024. The second heating plate 1024 and the first heating plate 1023 are arranged sequentially or alternately along a second direction, with the second direction forming an angle with the first direction. Sequential arrangement can be understood as at least two first heating plates 1023 and / or at least two second heating plates 1024 being arranged consecutively, and alternating arrangement can be understood as at least one second heating plate 1024 (or first heating plate 1023) being disposed between at least two first heating plates 1023 (or second heating plates 1024).

[0072] In some other embodiments, when the number of the first heating plates 1023 is configured to be different from the number of the second heating plates 1024, since the number of the second heating plates 1024 is configured to be greater than the number of the first heating plates 1023, as shown in the arrangement of the second embodiment, the length of the second heating plate group 1022 will be greater than the length of the first heating plate group 1021, thus wasting the limited space of the heater.

[0073] To this end, a portion of the second heating plate 1024 may be disposed in the first heating plate group 1021 to maintain the overall lengths of the first heating plate group 1021 and the second heating plate group 1022 to be substantially the same.

[0074] In some exemplary embodiments, the housing 107 forms the outer contour of the air supply device 100. Specifically, the housing 107 includes but is not limited to being configured as a hollow rectangular parallelepiped structure, the interior of which is suitable for arranging the air supply unit 105, the heating unit 102 and other components.

[0075] In some exemplary embodiments, the housing 107 is provided with an air inlet 108 and an air outlet 109. Specifically, the air inlet 108 is provided within the housing 107. In other embodiments, the air inlet 108 may be provided outside the housing 107 and connected to the housing 107 via a duct. Similarly, the air outlet 109 is also provided within the housing 107. In other embodiments, the air outlet 109 may be provided outside the housing 107 and connected to the housing 107 via a duct.

[0076] In some exemplary embodiments, the air supply unit 105 is disposed in the housing 107 and is located downstream of the air inlet 108 and upstream of the air outlet 109 , for supplying air from the air inlet 108 to the air outlet 109 .

[0077] On this basis, the heating unit 102 is arranged in the housing 107 and is located on the upstream side of the air outlet 109. After the air enters the housing 107 through the air inlet 108, it can pass through the heating unit 102 and the air outlet 109 in sequence, so that the airflow output through the air outlet 109 is heated to form hot air (also referred to as hot air flow). The heating unit 102 includes a heating unit that converts electrical energy into thermal energy. In this embodiment, the heating unit can be a PTC heating unit. In other embodiments, the heating unit can also be other heating units, such as a thick film heating unit, a carbon fiber heating unit, or a graphene heating unit. The heating unit 102 includes a ventilation surface, that is, a surface for air to pass through the heating unit, including an air inlet surface of the heating unit 102 and an air outlet surface of the heating unit 102.

[0078] In some exemplary embodiments, the control unit 104 of the air supply device 100 includes, but is not limited to, a microcontroller (MCU), a PLC (programmable logic controller), or other control devices suitable for collecting signals and outputting control signals to other components of the air supply device 100 (such as the air supply unit 105 and the heating unit 102) based on the collected signals. Specifically, at least a portion of the aforementioned devices can be controlled by the control unit 104. The control unit 104 may also be integrated with a storage unit (such as a flash memory, random access memory, read-only memory, electrically erasable programmable read-only memory, registers, and cache) to store some information.

[0079] In some exemplary embodiments, the first detection unit 101 of the air supply device 100 includes, but is not limited to, a voltage detection module, which may be integrated into the control unit 104 or independent of the control unit 104 and communicate with the control unit 104. The voltage detection module is adapted to acquire the operating voltage of the air supply device 100 in real time, convert the acquired operating voltage into a corresponding signal (e.g., an analog signal or a digital signal), and transmit the signal to the control unit 104. The voltage detection module may directly detect the operating voltage of the air supply device 100 (e.g., detecting the input voltage) or indirectly detect the operating voltage through current, resistance, and other parameters.

[0080] In addition, the air supply device 100 also has a second detection unit 103, which includes but is not limited to at least one of a temperature detection module, a humidity detection module, a control quality detection module, and a timer module. The temperature detection module is adapted to detect the ambient temperature of the target space to which the air supply device 100 is to supply air; the humidity detection module is adapted to detect the ambient humidity of the target space to which the air supply device 100 is to supply air; the air quality detection module is adapted to detect the air quality (e.g., PM2.5, PM10, carbon dioxide content, etc.) of the target space to which the air supply device 100 is to supply air; and the timer module is adapted to monitor the operating time of the air supply device 100 in at least one mode, such as the operating time of the heating unit 102 in the heating mode, so that the user can maintain and / or adjust the operation of the air supply device 100 in a certain mode.

[0081] It should be noted here that the specific structure and connection method of the above-mentioned control unit 104, the first detection unit 101 and the second detection unit 103 are not the protection points of this disclosure. Any detection unit that can be used for the air supply device 100 and the control unit 104 including the detection unit in this field can be selected and applied, and no further details will be given.

[0082] In such an embodiment, the core structure of the air supply device 100 includes an air supply unit 105 and a heating unit 102. The air supply unit 105 is responsible for generating airflow, while the heating unit 102 is used to heat the airflow. In addition, the air supply device 100 is also equipped with a first detection unit 101, whose key task is to obtain the current operating voltage of the air supply device 100 in real time. The control unit 104 will adjust the operating parameters of the air supply device 100 (for example, it may be at least one of the air supply volume, heating power, and air supply temperature) based on the operating voltage provided by the first detection unit 101 to ensure that the air supply device 100 can always maintain stable and expected heating performance under a relatively wide range of operating voltage conditions.

[0083] In an exemplary embodiment, the air supply device 100 further includes an alarm unit. Specifically, the alarm unit is communicatively connected to the control unit 104. The alarm unit includes, but is not limited to, at least one of a speaker, a lamp, a display, and other devices suitable for broadcasting information. Accordingly, the alarm signal may be broadcasted by the alarm unit using, but is not limited to, sound, light, or images.

[0084] According to an embodiment of the present disclosure, the operating parameters include the air supply volume output by the air supply unit 105. The control unit 104 is configured to control the air supply volume based on the operating voltage, and the air supply volume is positively correlated with the operating voltage. The positive correlation between the air supply volume and the operating voltage can be understood as, as the operating voltage increases, the air supply volume output by the air supply unit 105 also increases. Among them, the relationship between the air supply volume and the operating voltage can be a linear positive correlation, that is, as the operating voltage increases, the air supply volume also increases in a roughly equal proportion; or, the relationship between the air supply volume and the operating voltage can also be a nonlinear positive correlation, that is, as the operating voltage increases, the air supply volume also shows an increasing trend, but the proportion of the increase will be different from the proportion of the increase in the operating voltage.

[0085] According to an embodiment of the present disclosure, the air supply unit 105 includes a motor 1052 and a fan blade 1051. The fan blade 1051 is provided at the output end of the motor 1052, and the control unit 104 is configured to adjust the speed of the motor 1052 according to the working voltage.

[0086] In some exemplary embodiments, the air supply unit 105 includes but is not limited to having a fan blade 1051, a motor 1052 and a volute 1053. The volute 1053 is connected to the air inlet and the air outlet, and is used to supply air from the air inlet to the air outlet. The fan blade 1051 is arranged in the volute 1053, and the motor 1052 is connected to the fan blade 1051 to drive the fan blade 1051 to rotate. In detail, the air inlet, the volute 1053, the fan blade 1051 and the air outlet form an air supply path for supplying air to the target space. Among them, the motor 1052 drives the fan blade 1051 to rotate, and the air is driven by the fan blade 1051, enters the basket from the air inlet, and after entering the volute 1053 and the fan blade 1051, is blown out to the target space through the air outlet. The fan blades 1051 include but are not limited to centrifugal fan blades 1051. In other embodiments, the fan blades 1051 may also be other types of fan blades 1051, such as axial flow or crossflow. When the fan blades 1051 are other types of fan blades 1051, the volute 1053 may not be provided or other forms of wind path walls may be provided.

[0087] On this basis, in response to the increase in working voltage, the air supply output by the air supply unit 105 can be achieved by adjusting the speed of the motor 1052. For example, the speed of the motor 1052 is configured to be proportional to the working voltage, that is, under the premise that the ventilation area (that is, the total area of ​​the ventilation surface of the heating unit 102 through which air can pass) remains unchanged, it can be considered that the higher the speed of the motor 1052, the greater the air supply.

[0088] Furthermore, since the air supply volume is directly proportional to the ventilation area, that is, assuming the motor speed remains constant, the larger the ventilation area, the greater the air supply volume. Therefore, in other embodiments, if the motor speed remains constant, the air supply unit 105 can also adjust the air supply volume by adjusting the ventilation area (i.e., the total area of ​​the ventilation surface of the heating unit 102 available for airflow). Specifically, movable baffles can be provided on the upstream and / or downstream sides of the ventilation surface of the heating unit 102. In this way, the air supply volume of the air supply unit 105 can be adjusted by adjusting the total area of ​​the ventilation surface of the heating unit 102 blocked by the baffles.

[0089] According to an embodiment of the present disclosure, the air supply unit 105 has a minimum air supply volume, which is positively correlated with the operating voltage. The air supply unit 105 is configured to operate with an air supply volume greater than or equal to the minimum air supply volume. The minimum air supply volume can be understood as the lowest operating air volume of the air supply device 100. When the operating voltage increases, the control unit 104 is further configured to increase the minimum air supply volume accordingly.

[0090] According to an embodiment of the present disclosure, the operating parameters also include the heating power of the heating unit 102. The control unit 104 is configured to control the heating power based on the working voltage, and the heating power is negatively correlated with the working voltage. The negative correlation between the heating power and the working voltage can be understood as, as the working voltage increases, the heating power output by the air supply unit 105 also increases. Among them, the relationship between the heating power and the working voltage can be a linear negative correlation, that is, as the working voltage increases, the heating power also increases in a roughly proportional manner; or, the relationship between the heating power and the working voltage can also be a nonlinear negative correlation, that is, as the working voltage increases, the heating power also shows an increasing trend, but the proportion of the increase will be different from the proportion of the increase in the working voltage.

[0091] According to an embodiment of the present disclosure, the control unit 104 is further configured to obtain a target operating parameter corresponding to the operating voltage based on the operating voltage.

[0092] According to an embodiment of the present disclosure, the control unit 104 is further configured to obtain a target preset voltage corresponding to the operating voltage based on the operating voltage. The control unit 104 has at least two different preset voltages, and the control unit 104 further obtains a target operating parameter corresponding to the target preset voltage based on the target preset voltage.

[0093] In some exemplary embodiments, the storage unit of the control unit 104 stores preset voltages and target operating parameters mapped to the preset voltages. Specifically, the preset voltages and corresponding target operating parameters can form a queryable target operating parameter table. The target operating parameter table should include at least two different preset voltages, specifically 2, 3, 4, 5, 6, 7, 8, 9, 10, or any other number of preset voltages. On this basis, at least one target operating parameter (such as air flow or heating power) or at least one set of target operating parameters (such as air flow and heating power) should be set for each preset voltage.

[0094] In some exemplary embodiments, different preset voltages can be divided into low preset voltages and high preset voltages based on their magnitude, wherein the low preset voltage is less than the high preset voltage. For those with more than two preset voltages, they can be divided into low preset voltages, medium preset voltages, and high preset voltages, wherein the low preset voltage is less than the medium preset voltage and the high preset voltage is less. The low preset voltages, medium preset voltages, and high preset voltages can be stored in a target operating parameter table and arranged according to the voltage values ​​for easy query.

[0095] It should be noted that the above-mentioned low preset voltage, medium preset voltage, and high preset voltage are all relative, and do not mean that there are only three preset voltages. For example, the target operating parameter table may include 110V, 120V, 130V, 140V, 150V, 160V, 170V, 180V, 190V, 200V, 210V, 220V, 230V, 240V, and any other preset voltages. On this basis, corresponding to each of the above-mentioned preset voltage values, the target operating parameter table should also include preset operating parameters corresponding to each preset voltage, specifically, the air volume and / or heating power corresponding to each preset voltage.

[0096] Based on the target operating parameter table, when the first detection unit 101 obtains the operating voltage of the air supply device 100, it can compare it with the preset voltage in the target operating parameter table, select a preset voltage that is substantially the same as the operating voltage, and assign the preset operating parameter corresponding to the preset voltage as the target operating parameter. In this way, the air supply device 100 can operate at the target operating parameter.

[0097] In such an embodiment, when the air supply device 100 is operating, the operating voltage control unit 104 obtains a preset voltage that is the same as the operating voltage as the target operating voltage, and operates with target operating parameters corresponding to the target operating voltage.

[0098] According to another embodiment of the present disclosure, the control unit 104 has at least two control gears, each corresponding to a different preset operating parameter, and at least two control gears corresponding to the same operating voltage. The control unit 104 is further configured to, in response to receiving a gear control signal, determine a target control gear from the at least two control gears, and control the air supply device 100 to operate at the target operating parameters based on the target control gear.

[0099] In some exemplary embodiments, the control unit 104 has at least two control levels. Specifically, each preset voltage can be configured to correspond to at least two target operating parameters (i.e., control levels), thereby forming a queryable target operating parameter table. Specifically, each preset voltage should be associated with at least two different target operating parameters (e.g., air volume or heating power), or at least two different sets of target operating parameters (e.g., air volume and heating power).

[0100] For the same preset voltage, the target operating parameters can be divided into low target operating parameters and high target operating parameters based on their magnitude, where the low target operating parameter < the high target operating parameter. For more than two target operating parameters, they can be divided into low target operating parameters, medium target operating parameters, and high target operating parameters, where the low target operating parameter < the medium target operating parameter < the high target operating parameter. The low target operating parameters, medium target operating parameters, and high target operating parameters can be stored in a target operating parameter table for easy query.

[0101] In such an embodiment, when the air supply device 100 is operating, the operating voltage control unit 104 will obtain a preset voltage that is the same as the operating voltage as the target operating voltage. On this basis, since there are multiple control gears corresponding to the target operating voltage. To this end, the user can actively select a certain control gear (corresponding to the target operating voltage) to make the air supply device 100 operate with the target operating parameters corresponding to the control gear. Alternatively, the air supply device 100 can also actively operate at a certain control gear (corresponding to the target operating voltage), or switch between several control gears (corresponding to the target operating voltage) to adapt to different operating modes and / or operating states of the air supply device 100.

[0102] For example, the preset voltage for 110V includes but is not limited to having 3 control gears, wherein the air supply volume configured for the low gear may be 100m 3 / h, the air supply volume configured in the middle gear can be 130m 3 / h, the air supply volume configured for the high-end position can be 150m 3 / h; Similarly, the preset voltage for 120V includes the same 3 gears as the preset voltage of 110, among which the air supply volume configured for the low gear can be 110m 3 / h, the air supply volume configured in the middle gear can be 140m 3 / h, the air supply volume configured for the high-end position can be 165m 3 / h.

[0103] When the operating voltage is 110V, the control unit 104 detects this operating voltage and uses 110V as the target operating voltage. The 110V target operating voltage corresponds to three control levels. Therefore, the user can actively select to operate at the target operating parameters corresponding to a specific control level. Alternatively, since the air supply device 100 is in the on state, the air supply device 100 can first operate at high target operating parameters, and then adjust to medium or low target operating parameters after a preset time period.

[0104] According to an embodiment of the present disclosure, in addition to obtaining the target operating parameters by using the above-mentioned table lookup method, the control unit 104 is further configured to calculate the target operating parameters according to the operating voltage.

[0105] According to an embodiment of the present disclosure, the control unit 104 is further configured to obtain the target operating parameter according to the ratio of the operating voltage to the target preset voltage and the preset operating parameter.

[0106] Figure 4 This is a curve of air supply volume and operating voltage changes under a constant temperature of 59°C.

[0107] According to an embodiment of the present disclosure, the relationship between the target operating parameter and the operating voltage satisfies the following function (i.e., Equation 1 and Equation 2):

[0108] Operating voltage = constant a × target operating parameter² + constant b × target operating parameter + constant c.

[0109] When the target operating parameter is air supply volume, 0.001≤a≤0.01, b<0, 250≤c≤350;

[0110] When the target operating parameter is heating power, -0.1≤a<0, 30≤b≤40, c<0.

[0111] In some exemplary embodiments, referring to Figure 4 As shown, Figure 4 The horizontal axis is the air volume, the vertical axis is the operating voltage, and the dotted line shows the trend of the operating voltage changing with the air volume. Figure 4 In the embodiment shown, the target operating parameters include a target air supply volume, which is obtained by, but not limited to, the following formula 1:

[0112] V=a×x²+b×x+c Formula 1

[0113] In Formula 1, V represents the operating voltage, a represents the first coefficient at the target temperature, b represents the second coefficient at the target temperature, c represents the third coefficient at the target temperature, and x represents the target air supply volume.

[0114] In Equation 1, the first coefficient (a), the second coefficient (b), and the third coefficient (c) can be obtained from the aforementioned airflow rate and operating voltage curve. Based on this, the operating voltage (V) can be obtained by the control unit 104, and the target airflow rate (i.e., the target operating parameter) corresponding to this operating voltage can be calculated.

[0115] For example, under a constant temperature of 59° C., a=0.007, b=-2, and c=255. At this time, the target air supply volume corresponding to the operating voltage can be calculated based on the above formula 1.

[0116] Figure 5 This is a curve diagram of the change of working voltage and heating power under a constant temperature of 59°C.

[0117] In some exemplary embodiments, referring to Figure 5 As shown, Figure 5 The horizontal axis is the working voltage, the vertical axis is the heating power, and the dotted line shows the trend of the working voltage changing with the heating power. Figure 5 In the illustrated embodiment, the target operating parameter includes a target heating power, which is obtained, but not limited to, by the following formula 2:

[0118] W=a×V²+b×V+c Formula 2

[0119] In Formula 2, V represents the operating voltage, a represents the first coefficient at the target temperature, b represents the second coefficient at the target temperature, c represents the third coefficient at the target temperature, and W represents the target heating power.

[0120] In Equation 2, the first coefficient (a), the second coefficient (b), and the third coefficient (c) can be obtained from the operating voltage and heating power curve. Based on this, the operating voltage (V) can be obtained by the control unit 104, and the target heating power (i.e., the target operating parameter) corresponding to this operating voltage can be calculated.

[0121] For example, under a constant temperature condition of 59° C., a=-0.08, b=36, and c=-1490. At this time, the target heating power corresponding to the operating voltage can be calculated based on the above formula 2.

[0122] In addition to using the above-mentioned formula 1 and formula 2 to obtain the target operating parameters, the control unit 104 can also be configured to calculate the operating parameters according to the ratio, a preset operating constant, and a constant k, where k is greater than 0.

[0123] According to an embodiment of the present disclosure, the calculating the target operating parameter according to the operating voltage includes: the target operating parameter=(the operating voltage / the target preset voltage)×the preset operating parameter×k.

[0124] According to an embodiment of the present disclosure, 0.8≤k≤1.6.

[0125] In some exemplary embodiments, the target air supply volume includes but is not limited to being obtained by the following formula 3:

[0126] x1=(V1 / V0)×x0×k Formula 3

[0127] In Formula 3, V1 represents the operating voltage, V0 represents the target preset voltage, x1 represents the air supply volume, x0 represents the preset air supply volume, and k represents a constant, wherein 0.8≤k≤1.6; specifically, when the air supply device is in the high gear, 0.9≤k≤1.3; when the air supply device is in the middle gear, 1.04≤k≤1.4; when the air supply device is in the low gear, 1.17≤k≤1.57.

[0128] In some exemplary embodiments, the target heating power includes but is not limited to being obtained by the following formula 4:

[0129] W1=(V1 / V0)×W0×k Formula 4

[0130] In Formula 4, V1 represents the operating voltage, V0 represents the target preset voltage, W1 represents the target heating power, W0 represents the preset heating power, and k represents a constant.

[0131] Second embodiment

[0132] Figure 6 is a flowchart of a control method according to an exemplary embodiment of the present disclosure.

[0133] Based on the same inventive concept, the present disclosure also provides a control method for the air supply device 100, referring to Figure 6 Shown, including:

[0134] Step S110: obtaining the operating voltage of the air supply device 100;

[0135] Step S120: adjusting the operating parameters of the air supply device 100 according to the operating voltage.

[0136] In this embodiment, based on the aforementioned air supply device 100 and employing this control method, the first detection unit 101 of the air supply device 100 obtains the current operating voltage of the air supply device 100 in real time. The control unit 104 intelligently adjusts the operating parameters of the air supply device 100 (for example, at least one of the air volume, heating power, and air temperature) based on the operating voltage provided by the first detection unit 101, ensuring that the air supply device 100 maintains stable and expected heating performance over a wide range of operating voltage conditions.

[0137] Figure 7 yes Figure 6 Flowchart of step S120 in FIG.

[0138] According to some exemplary embodiments of the present disclosure, referring to Figure 7 As shown, step S120 includes:

[0139] Step S121: According to the operating voltage, the air supply volume of the air supply unit 105 and / or the heating power of the heating unit 102 are adjusted. The air supply volume and / or the heating power are negatively correlated with the operating voltage.

[0140] Step S121 includes: obtaining target operating parameters corresponding to the operating voltage according to the operating voltage.

[0141] Specifically, they include:

[0142] Step S1211: obtaining a target preset voltage corresponding to the operating voltage according to the operating voltage;

[0143] Step S1212: obtaining target operating parameters corresponding to the target preset voltage through the target preset voltage;

[0144] Step S1213: The air supply device 100 operates with target operating parameters;

[0145] The air supply device 100 has at least two different preset voltages.

[0146] In the above steps S1211 to S1213 , the target operating parameters are obtained according to the operating voltage in a manner similar to that of the above first embodiment, and are obtained by querying the target operating parameter table.

[0147] For example, the target operating parameter table may sequentially include 110 V, 120 V, 130 V, 140 V, 150 V, 160 V, 170 V, 180 V, 190 V, 200 V, 210 V, 220 V, 230 V, 240 V, and any other preset voltages. Based on this, corresponding to each of the above preset voltage values, the target operating parameter table should also include preset operating parameters corresponding to each preset voltage, specifically, the air volume and / or heating power corresponding to each preset voltage.

[0148] Based on the target operating parameter table, when the first detection unit 101 obtains the operating voltage of the air supply device 100, it can be compared with the preset voltage in the target operating parameter table. If the operating voltage is the same as a preset voltage, the preset operating parameter corresponding to the preset voltage is assigned as the target operating parameter. In this way, the air supply device 100 can be operated at the target operating parameter.

[0149] In such an embodiment, when the air supply device 100 is operating, the operating voltage control unit 104 obtains a preset voltage that is the same as the operating voltage as the target operating voltage, and operates with target operating parameters corresponding to the target operating voltage.

[0150] Because utility voltages vary across regions, the operating voltage of the air supply device 100 varies when used in different regions. When this operating voltage is higher or lower than the standard voltage of the air supply device 100, the heating power of the heating unit 102 increases or decreases accordingly. Even if the air volume of the air supply device 100 remains unchanged, the temperature of the hot air output by the air supply device 102 will also increase or decrease, making it difficult to meet the user's heating needs.

[0151] For example, when the air supply device 100 operates at a certain standard voltage, the heating power of the heating part 102 is 1650W, and the corresponding air supply temperature is 39°C. At this time, it can meet the user's heating needs while providing the user with a comfortable environment.

[0152] However, when the air supply device 100 operates at a voltage higher than a certain standard voltage, the power of the heating unit 102 will also increase accordingly, for example, to 1750W. As a result, the heating unit 102 generates more heat per unit time. If the air supply volume of the air supply unit 105 remains unchanged, some heat will accumulate in the heating unit of the heating unit 102, causing the air supply temperature to rise above 39°C. This will cause the air supply temperature to be too high, causing problems such as overheating of the target space. To this end, the operating parameters of the air supply device 100 should be adjusted to ensure that the air supply device 100 operates at the appropriate target operating parameters.

[0153] To this end, in this second embodiment, when the air supply device 100 is connected to the mains, the first detection unit 101 obtains the operating voltage of the air supply device 100 and adjusts the operating parameters of the air supply device 100 according to the operating voltage, including but not limited to the above-mentioned air supply volume and / or heating power.

[0154] For example, when the standard voltage of the air supply device 100 is 110V, the corresponding target air supply volume (ie, target operating parameter) is 100m 3 / h.

[0155] When the working voltage of the air supply device 100 connected to the mains is 120V, the air supply volume of the air supply device 100 can be increased accordingly, specifically 101m 3 / h、110m 3 / h and other arbitrary values. Thus, by increasing the air flow through the heating unit 102, more heat generated by the heating unit 102 can be removed per unit time, reducing heat accumulation and thus suppressing increases in the air temperature due to increases in the actual input voltage. To this end, while maintaining the heating power of the heating unit 102, the air flow can be increased to lower the air temperature, providing users with warm air that meets their needs.

[0156] Alternatively, in the second embodiment, when the air supply device 100 is connected to a mains power supply with an operating voltage of 120V, the heating power of the heating unit 102 can be reduced, for example, from 1650W to 1600W. This allows the heating unit 102 to generate less heat per unit time. To this end, while maintaining the air supply volume of the air supply unit 105, the air supply temperature can be lowered by reducing the heating power, thereby providing the user with warm air that meets their needs.

[0157] On the contrary, when the working voltage of the mains power supply of the air supply device 100 is lower than a certain standard voltage, the air supply temperature can be increased by reducing the air supply volume and / or increasing the heating power to provide the user with warm air that meets the needs. Of course, the above-mentioned adjustment of the air supply volume and heating power can also be used in conjunction.

[0158] Furthermore, to provide more precise control over the air supply device 100, the air supply device 100 is configured with at least two control gears at corresponding preset voltages. Specifically, each preset voltage can be configured to correspond to at least two target operating parameters (i.e., control gears), thereby forming a queryable target operating parameter table. Specifically, each preset voltage should be associated with at least two different target operating parameters (e.g., air volume or heating power), or at least two different sets of target operating parameters (e.g., air volume and heating power).

[0159] For the same preset voltage, the target operating parameters can be divided into low target operating parameters and high target operating parameters based on their magnitude, where the low target operating parameter < the high target operating parameter. For more than two target operating parameters, they can be divided into low target operating parameters, medium target operating parameters, and high target operating parameters, where the low target operating parameter < the medium target operating parameter < the high target operating parameter. The low target operating parameters, medium target operating parameters, and high target operating parameters can be stored in a target operating parameter table for easy query.

[0160] In such an embodiment, when the air supply device 100 is operating, the operating voltage control unit 104 will obtain a preset voltage that is the same as the operating voltage as the target operating voltage. On this basis, since there are multiple control gears corresponding to the target operating voltage. To this end, the user can actively select a certain control gear (corresponding to the target operating voltage) to make the air supply device 100 operate with the target operating parameters corresponding to the control gear. Alternatively, the air supply device 100 can also actively operate at a certain control gear (corresponding to the target operating voltage), or switch between several control gears (corresponding to the target operating voltage) to adapt to different operating modes and / or operating states of the air supply device 100.

[0161] For example, the preset voltage for 110V includes but is not limited to having 3 control gears, wherein the air supply volume configured for the low gear may be 100m 3 / h, the air supply volume configured in the middle gear can be 130m 3 / h, the air supply volume configured for the high-end position can be 150m 3 / h; Similarly, the preset voltage for 120V includes the same 3 gears as the preset voltage of 110, among which the air supply volume configured for the low gear can be 110m 3 / h, the air supply volume configured in the middle gear can be 140m 3 / h, the air supply volume configured for the high-end position can be 165m 3 / h.

[0162] When the operating voltage is 110V, the control unit 104 detects this operating voltage and uses 110V as the target operating voltage. The 110V target operating voltage corresponds to three control levels. Therefore, the user can actively select to operate at the target operating parameters corresponding to a specific control level. Alternatively, since the air supply device 100 is in the on state, the air supply device 100 can first operate at high target operating parameters, and then adjust to medium or low target operating parameters after a preset time period.

[0163] Based on the above second embodiment, a corresponding target operating parameter table can be established based on empirical values ​​and / or calculated values, such as the following Table 1:

[0164] Target operating parameter table 1

[0165]

[0166] Based on similar inventive concepts, the second embodiment has similar or identical features to the first embodiment, and also has similar or identical functions based on these features, so they are not described in detail.

[0167] Third embodiment

[0168] According to some other exemplary embodiments of the present disclosure, step S120 further includes:

[0169] Step S122: Calculate target operating parameters according to the operating voltage.

[0170] Specifically, they include:

[0171] Step S1221: Obtain target operating parameters according to the ratio of the operating voltage to the target preset voltage and the preset operating parameters.

[0172] In the above step S1221, the method of calculating the target operating parameter according to the operating voltage can be similar to that of the above first embodiment, and can be calculated by the above formula 1 and / or the above formula 2:

[0173] V=a×x²+b×x+c Formula 1

[0174] In Formula 1, V represents the operating voltage, a represents the first coefficient at the target temperature, b represents the second coefficient at the target temperature, c represents the third coefficient at the target temperature, and x represents the target air supply volume.

[0175] In Equation 1, the first coefficient (a), the second coefficient (b), and the third coefficient (c) can be obtained from the aforementioned airflow rate and operating voltage curve. Based on this, the operating voltage (V) can be obtained by the control unit 104, and the target airflow rate (i.e., the target operating parameter) corresponding to this operating voltage can be calculated.

[0176] In Equation 1, the first coefficient (a), the second coefficient (b), and the third coefficient (c) can be obtained by looking up a table. Based on this, the operating voltage (V) can be obtained by the control unit 104 , and the target airflow rate (i.e., the target operating parameter) corresponding to this operating voltage can be calculated.

[0177] W=a×V²+b×V+c Formula 2

[0178] In Formula 2, V represents the operating voltage, a represents the first coefficient at the target temperature, b represents the second coefficient at the target temperature, c represents the third coefficient at the target temperature, and W represents the target heating power.

[0179] In Equation 2, the first coefficient (a), the second coefficient (b), and the third coefficient (c) can be obtained from the operating voltage and heating power curve. Based on this, the operating voltage (V) can be obtained by the control unit 104, and the target heating power (i.e., the target operating parameter) corresponding to this operating voltage can be calculated.

[0180] In addition, the method for calculating the target operating parameters according to the operating voltage can be similar to that of the first embodiment described above, and can be calculated using the above formula 3 and / or the above formula 4:

[0181] The target air supply volume includes but is not limited to being obtained by the following formula 3:

[0182] x1=(V1 / V0)×x0×k Formula 3

[0183] In Formula 3, V1 represents the operating voltage, V0 represents the target preset voltage, x1 represents the air supply volume, x0 represents the preset air supply volume, and k represents a constant, wherein 0.8≤k≤1.6; specifically, when the air supply device is in high gear, 0.9≤k≤1.3; when the air supply device is in medium gear, 1.04≤k≤1.4; when the air supply device is in low gear, 1.17≤k≤1.57;

[0184] In some exemplary embodiments, the target air supply volume includes but is not limited to being obtained by the following formula 4:

[0185] W1=(V1 / V0)×W0×k Formula 4

[0186] In Formula 4, V1 represents the operating voltage, V0 represents the target preset voltage, W1 represents the target heating power, W0 represents the preset heating power, and k represents a constant.

[0187] In such an embodiment, when the operating voltage of the AC power connected to the air supply device 100 is not the above-mentioned preset voltage (such as other voltages outside the above Table 1), for example, 111V, 125V and any other voltages, the target operating parameters can still be calculated by the above-mentioned Formula 1 and / or Formula 2, thereby enabling the air supply device 100 to provide users with relatively stable or more stable air supply temperatures under more diverse conditions.

[0188] Based on similar inventive concepts, the third embodiment has similar or identical features to the first embodiment and / or the second embodiment, and also has similar or identical functions based on these features, so they are not described in detail.

[0189] Fourth embodiment

[0190] Figure 8 is a flowchart according to the fourth embodiment of the present disclosure.

[0191] According to the control method provided by the present disclosure, referring to Figure 8 As shown, it also includes:

[0192] Step S210: The air supply device 100 operates at a corresponding control gear;

[0193] Step S220: determining whether the operating voltage of the air supply device 100 is within a preset voltage range;

[0194] Step S221: When the operating voltage is outside the preset voltage range, the air supply device 100 is adjusted to stop operating and / or an alarm signal is output;

[0195] Step S222: When the operating voltage is within the preset voltage range, adjust the operating parameters of the air supply device 100.

[0196] In some exemplary embodiments, the preset voltage range in step S220 includes, but is not limited to, 100 V to 240 V. Specifically, when the air supply device 100 is operating, the first detection unit 101 is adapted to detect the operating voltage of the air supply device 100 , and the control unit 104 compares the operating voltage with a lower voltage limit (i.e., 100 V) and an upper voltage limit (i.e., 240 V) of the preset voltage range, respectively.

[0197] On this basis, when the operating voltage is lower than the lower voltage limit or higher than the upper voltage limit, the process proceeds to step S221. If the operating voltage is lower than the lower voltage limit, the air supply device 100 is in an undervoltage state; if the operating voltage is higher than the upper voltage limit, the air supply device 100 is in an overvoltage state. To this end, the control unit 104 controls the air supply device 100 to stop operating, which can be understood as shutting down the air supply device 100. At the same time, the air supply device 100 can also output an alarm signal, which can be output by the alarm unit in the first embodiment described above.

[0198] For example, the alarm unit may use a buzzer to broadcast an alarm signal by sounding a buzzer.

[0199] For example, the alarm unit may use an LED lamp to broadcast the alarm signal through the light displayed by the LED lamp. For another example, the alarm unit may use a display screen to broadcast the alarm signal in the form of images and / or text displayed on the display screen.

[0200] In another exemplary embodiment, the alarm unit may also use a communication device, such as a wired network, a wireless network, Bluetooth or other communication methods to send an alarm signal to an external terminal (such as a mobile phone, a computer, a tablet computer and other terminals with a display function).

[0201] In this way, the air supply device 100 can be prevented from being damaged due to overvoltage or undervoltage.

[0202] Furthermore, in step S222 , when the operating voltage of the air supply device 100 is within the preset voltage range and is higher than the lower voltage limit and lower than the upper voltage limit, the operating parameters of the air supply device 100 may be adjusted according to at least one of the first to third embodiments.

[0203] Based on similar inventive concepts, the fourth embodiment has features similar to or identical to at least one of the first to third embodiments described above, and also has similar or identical functions based on these features, so they are not described in detail.

[0204] Fifth embodiment

[0205] Figure 9 is a flowchart according to the fifth embodiment of the present disclosure.

[0206] According to the embodiment of the present disclosure, referring to Figure 9 As shown, the control method further includes:

[0207] Step S310: Acquire the ambient temperature of the target space;

[0208] Step S320: Adjust operating parameters according to the ambient temperature.

[0209] According to an embodiment of the present disclosure, step S320: adjusting operating parameters according to ambient temperature includes:

[0210] Step S321: determining whether the ambient temperature is within a preset temperature range;

[0211] Step S322: When the ambient temperature is within the preset temperature range, the operating parameters of the air supply device 100 are maintained, which can be understood as maintaining the current operating parameters of the air supply device, wherein the ambient temperature includes the return air temperature of the air supply device 100 .

[0212] In step S322, the operating parameters of the air supply device 100 include but are not limited to those obtained according to any one of the first to fourth embodiments described above:

[0213] Step S323: When the ambient temperature is not within the preset temperature range, repeat the determination according to the preset time length until the preset number of determinations is reached;

[0214] Step S324: If the preset number of determinations is not reached, further determining whether the ambient temperature reaches the lower limit of the preset temperature range;

[0215] Step S325: When the ambient temperature is lower than the lower limit of the preset temperature range, the air flow of the air supply unit 105 is increased and / or the heating power of the heating unit 102 is increased until the ambient temperature is within the preset temperature range.

[0216] In some exemplary embodiments, when the ambient temperature is lower than the lower limit of the preset temperature range, it can be understood that the temperature of the current target environment is too low compared to the preset temperature range (the user's comfortable body temperature). Therefore, the air supply temperature and / or air supply volume should be increased to accelerate the increase in the ambient temperature of the target space. Still taking the above-mentioned preset temperature range of 20-35°C as an example, it can be understood that the ambient temperature is lower than 20°C at this time. Then, according to the methods of the first to fourth embodiments described above, the air supply volume of the air supply unit 105 at this time is obtained:

[0217] For example, the working voltage at this time is 120V, and the target operating parameter corresponding to this working voltage is the air supply volume of 110 m 3 / h, the air supply volume can be increased on this basis, wherein the air supply volume increased on the basis of the target operating parameters can be the preset air supply volume (M), such as 30 m 3 / h. At this time, the air supply volume of the air supply device 100 can be adjusted to 140 m 3 / h, the sum of the air volume corresponding to the target operating parameters and the preset air supply volume. In this way, increasing the air supply volume will improve the air circulation efficiency in the target space, thereby accelerating the increase in the ambient temperature of the target space.

[0218] Alternatively, step S326: if the preset number of determinations is not reached, further determining whether the ambient temperature exceeds the upper limit of the preset temperature range;

[0219] Step S327: When the ambient temperature is higher than the upper limit of the preset temperature range, the air flow of the air supply unit 105 is increased and / or the heating power of the heating unit 102 is reduced until the ambient temperature is within the preset temperature range.

[0220] In some exemplary embodiments, when the ambient temperature is higher than the upper limit of a preset temperature range, it can be understood that the temperature of the current target environment is too high compared to the preset temperature range (the user's comfortable body temperature). Therefore, the air supply temperature should be lowered and / or the air supply volume should be adjusted, for example, by increasing the air supply volume or adjusting the air supply volume according to the target operating parameters, to quickly reduce the ambient temperature of the target space. Still taking the above-mentioned preset temperature range of 20-35°C as an example, it can be understood that the ambient temperature is higher than 35°C at this time. At this time, according to the means of the first to fourth embodiments described above, the air supply volume of the air supply unit 105 at this time is obtained, and the heating power of the heating unit 102 is reduced, such as reducing the heating power to 0W, that is, turning off the heating unit 102. At this time, the heating unit 102 is turned off and only the air supply unit 105 is operating. To this end, the air flow rate in the target space is increased to achieve the purpose of rapid temperature reduction.

[0221] In some exemplary embodiments, the lower temperature limit of the preset temperature interval configured in step S324 and the upper temperature limit of the preset temperature interval configured in step S326 are consistent with the preset temperature interval set in step S321. It should be understood that the embodiments of the present disclosure are not limited thereto.

[0222] For example, the lower temperature limit of step S324 and / or the upper temperature limit of step S326 may be different from the preset temperature range of step S321 , but may be obtained through the preset temperature range of step S321 .

[0223] For example, in step S321, in addition to comparing the ambient temperature with the above-mentioned preset temperature range, the ambient temperature can also be compared with a preset temperature, that is, the preset temperature is not an interval range, but a corresponding temperature value; and when the ambient temperature is higher than the preset temperature, step S326 can be performed, and when the ambient temperature is lower than the preset temperature, step S324 can be performed.

[0224] In some exemplary embodiments, after the air supply device 100 executes the above-mentioned step S327 or step S325 for a preset time, it returns to step S321 for the next cycle to again determine whether the ambient temperature is within the preset temperature range. If the ambient temperature is still not within the preset temperature range, it returns to step S323. After reaching the preset number of determinations, it can further execute step S328: the air supply device 100 stops operating and outputs an alarm signal. The preset time includes but is not limited to being configured as 1 minute, 2 minutes, 3 minutes, 4 minutes, 5 minutes, 6 minutes, 7 minutes, 8 minutes, 9 minutes, 10 minutes, and any other time, and the preset number of determinations includes but is not limited to being configured as 1 time, 2 times, 3 times, 4 times, 5 times, 6 times, 7 times, 8 times, 9 times, 10 times, 11 times, 12 times, 13 times, 14 times, 15 times, and any other number.

[0225] In some exemplary embodiments, the preset temperature range can be characterized as a temperature range that meets user requirements. The preset temperature range can be an empirical value and / or a calculated value. Specifically, it should be determined that the user feels comfortable when the return air temperature of the air supply device 100 is within this preset temperature range. The return air temperature can be understood as the air temperature of the air in the target space entering the return air outlet of the air supply device 100. Specifically, it can be obtained by the second detection unit 103 (such as a temperature detection module) in the first embodiment described above. The second detection unit 103 includes but is not limited to being located at at least one of the downstream side of the air outlet, the upstream side of the heating unit 102, and the upstream side of the air inlet.

[0226] In some exemplary embodiments, the ambient temperature detected by the second detection unit 103 can be either the actual temperature value detected for a certain area in the target space, or a virtual temperature value calculated based on the actual detected temperature value and operating conditions. For example, when the second detection unit 103 is located 50 cm downstream of the air outlet, the ambient temperature it detects is approximately 50°C to 60°C. However, this ambient temperature is the temperature in the area a certain distance downstream of the air outlet, not the overall ambient temperature of the target space. Therefore, based on operating conditions, it can be inferred that when the temperature of the area 50 cm downstream of the air outlet is 50°C to 60°C, the overall ambient temperature in the target space will be approximately 35°C to 45°C. Therefore, when the ambient temperature detected by the second detection unit 103 50 cm downstream of the air outlet meets the conditions, it can be reasonably inferred that the overall ambient temperature in the target space is sufficient to provide a comfortable warm air and environment for the user.

[0227] In some exemplary embodiments, the preset temperature range includes, but is not limited to, 38° C. to 45° C. It should be understood that the embodiments of the present disclosure are not limited thereto.

[0228] For example, the preset temperature range may also be 20°C~35°C, 35°C~50°C, 45°C~60°C or other user-friendly body temperature.

[0229] In such an embodiment, when the ambient temperature is within the preset temperature range, it means that the user's perceived temperature is appropriate and comfortable. Therefore, the operating parameters of the air supply device 100 at this time can be maintained. The operating parameters of the air supply device 100 at this time include but are not limited to those obtained through the implementation of the first to fourth embodiments described above.

[0230] Sixth embodiment

[0231] Figure 10 is a flowchart according to the sixth embodiment of the present disclosure.

[0232] According to the embodiment of the present disclosure, continue to refer to Figure 10 As shown, the control method further includes:

[0233] Step S310: Acquire the ambient temperature of the target space;

[0234] Step S320: Adjust operating parameters according to the ambient temperature.

[0235] According to an embodiment of the present disclosure, step S320: adjusting operating parameters according to ambient temperature includes:

[0236] Step S321: determining whether the ambient temperature is within a preset temperature range;

[0237] Step S322: When the ambient temperature is within the preset temperature range, maintaining the operating parameters of the air supply device 100;

[0238] In step S322, the operating parameters of the air supply device 100 include, but are not limited to, those obtained according to any one of the first to fourth embodiments described above:

[0239] For example, the preset temperature range includes but is not limited to being configured as 20~35℃. When the ambient temperature is in the preset temperature range, the air supply device 100 operates with the above-mentioned target operating parameters, that is, the target operating parameters can be obtained through the operating voltage in the above-mentioned first to fourth embodiments.

[0240] It should be noted that the order of the steps of obtaining the target operating parameters based on the aforementioned power supply voltage and adjusting the air supply device 100 based on the target operating parameters, as well as step S322, is adjustable. That is, the target operating parameters can be obtained first, and then, after further determining that the ambient temperature is within a preset temperature range, the air supply device 100 can be adjusted based on the target operating parameters. Alternatively, the ambient temperature can be determined to be within the preset temperature range first, and then the target operating parameters can be obtained and adjusted based on the target operating parameters.

[0241] Step S323: When the ambient temperature is not within the preset temperature range, repeat the determination according to the preset time length until the preset number of determinations is reached;

[0242] Step S324: If the preset number of determinations is not reached, further determining whether the ambient temperature reaches the lower limit of the preset temperature range;

[0243] Step S325: When the ambient temperature is lower than the lower limit of the preset temperature range, the air flow of the air supply unit 105 is increased and / or the heating power of the heating unit 102 is increased until the ambient temperature is within the preset temperature range.

[0244] In some exemplary embodiments, when the ambient temperature is lower than the lower limit of the preset temperature range, it can be understood that the temperature of the current target environment is too low compared to the preset temperature range (the user's comfortable body temperature). Therefore, the air supply temperature and / or air supply volume should be increased to accelerate the increase in the ambient temperature of the target space. Still taking the above-mentioned preset temperature range of 20-35°C as an example, it can be understood that the ambient temperature is lower than 20°C at this time. Then, according to the methods of the first to fourth embodiments described above, the air supply volume of the air supply unit 105 at this time is obtained:

[0245] For example, the working voltage at this time is 120V, and the target operating parameter corresponding to this working voltage is the air supply volume of 110 m 3 / h, the air supply volume can be increased on this basis, wherein the air supply volume increased on the basis of the target operating parameters can be the preset air supply volume (M), such as 30 m 3 / h. At this time, the air supply volume of the air supply device 100 can be adjusted to 140 m 3 / h, the sum of the air volume corresponding to the target operating parameters and the preset air supply volume. In this way, increasing the air supply volume will improve the air circulation efficiency in the target space, thereby accelerating the increase in the ambient temperature of the target space.

[0246] Alternatively, step S326: if the preset number of determinations is not reached, further determining whether the ambient temperature exceeds the upper limit of the preset temperature range;

[0247] Step S327: When the ambient temperature is higher than the upper limit of the preset temperature range, the air flow of the air supply unit 105 is increased and / or the heating power of the heating unit 102 is reduced until the ambient temperature is within the preset temperature range.

[0248] In some exemplary embodiments, when the ambient temperature is higher than the upper limit of a preset temperature range, it can be understood that the temperature of the current target environment is too high compared to the preset temperature range (the user's comfortable body temperature). Therefore, the air supply temperature should be lowered and / or the air supply volume should be adjusted, for example, by increasing the air supply volume or adjusting the air supply volume according to the target operating parameters, to quickly reduce the ambient temperature of the target space. Still taking the above-mentioned preset temperature range of 20-35°C as an example, it can be understood that the ambient temperature is higher than 35°C at this time. At this time, according to the means of the first to fourth embodiments described above, the air supply volume of the air supply unit 105 at this time is obtained, and the heating power of the heating unit 102 is reduced, such as reducing the heating power to 0W, that is, turning off the heating unit 102. At this time, the heating unit 102 is turned off, and only the air supply unit 105 is operating. To this end, the air flow rate in the target space is increased to achieve the purpose of rapid temperature reduction.

[0249] In some exemplary embodiments, the lower temperature limit of the preset temperature interval configured in step S324 and the upper temperature limit of the preset temperature interval configured in step S326 are consistent with the preset temperature interval set in step S321. It should be understood that the embodiments of the present disclosure are not limited thereto.

[0250] For example, the lower temperature limit of step S324 and / or the upper temperature limit of step S326 may be different from the preset temperature range of step S321 , but may be obtained through the preset temperature range of step S321 .

[0251] For example, in step S321, in addition to comparing the ambient temperature with the above-mentioned preset temperature range, the ambient temperature can also be compared with a preset temperature, that is, the preset temperature is not an interval range, but a corresponding temperature value; and when the ambient temperature is higher than the preset temperature, step S326 can be performed, and when the ambient temperature is lower than the preset temperature, step S324 can be performed.

[0252] In some exemplary embodiments, after the air supply device 100 executes the above-mentioned step S327 or step S325 for a preset time, step S329 may be further executed to again determine whether the ambient temperature is within the preset temperature range. If the ambient temperature is still not within the preset temperature range, the process returns to step S323. After reaching the preset number of determinations, step S328 may be further executed: the air supply device 100 stops operating and outputs an alarm signal. The preset time includes but is not limited to being configured as 1 minute, 2 minutes, 3 minutes, 4 minutes, 5 minutes, 6 minutes, 7 minutes, 8 minutes, 9 minutes, 10 minutes, or any other time, and the preset number of determinations includes but is not limited to being configured as 1 time, 2 times, 3 times, 4 times, 5 times, 6 times, 7 times, 8 times, 9 times, 10 times, 11 times, 12 times, 13 times, 14 times, 15 times, or any other number.

[0253] If, in step S329, the ambient temperature is within the preset temperature range, step S330 is further executed to maintain the air supply device at the current operating parameters, which can be understood as maintaining the current operating parameters adjusted in step S327 or S325.

[0254] Taking the preset duration of 2 minutes as an example, and the preset number of determinations as 10 times, it can be understood that the air supply device 100 can operate for a maximum of 20 minutes when the ambient temperature does not reach the preset temperature range, after which the air supply device 100 stops operating and outputs an alarm signal. If the air supply device 100 still fails to adjust the ambient temperature to the preset temperature range after adjusting the operating parameters and operating for 20 minutes, it means that there is damage or failure in the components of the air supply device 100, such as a failure of the second detection unit 103 resulting in inaccurate detection of the ambient temperature, or damage to the heating unit 102. In this case, the air supply device 100 is controlled to stop operating to reduce the possibility of component damage affecting the service life or safety of the air supply device 100, and an alarm signal is output to remind the user to perform maintenance.

[0255] In such an embodiment, due to variations in the target space, even if the air supply device 100 adjusts the target operating parameters based on the operating voltage, it may not be able to provide the user with the desired warm air when the target space temperature is low or high. For example, when the air temperature in the target space is below 20°C, even if the air supply device 100 adjusts the corresponding operating parameters based on the operating voltage, it will be difficult to heat the air to the user's desired temperature in a short period of time.

[0256] It should be noted that in the fifth and sixth embodiments, steps S310 and S321 may be unified. That is, in step S321, determining whether the ambient temperature is within a predetermined temperature range, if the ambient temperature satisfies the predetermined temperature range, step S322 may be executed as described in the fifth embodiment; otherwise, step S323 and subsequent steps may be executed.

[0257] In this embodiment, the air supply device 100 detects the ambient temperature through a temperature detection unit and compares the ambient temperature with a preset temperature range. When the ambient temperature meets the preset temperature range, that is, within the preset temperature range of 20°C to 35°C, the air supply device 100 can adjust its operating parameters through the control method disclosed in this embodiment to reduce the impact of operating voltage changes on the air supply temperature of the air supply device 100, thereby providing the user with a suitable air supply temperature. In other words, when the ambient temperature meets the preset temperature range, the current ambient temperature can meet the environmental conditions required for the operation of the air supply device 100.

[0258] When the ambient temperature does not meet the preset temperature range, that is, when it is lower than 20°C or higher than 35°C, the air supply temperature requirement cannot be met by adjusting the operating parameters based solely on the operating voltage. At this time, the air supply device 100 is controlled to further adjust the operating parameters of the air supply device 100 based on the relationship between the ambient temperature and the upper or lower temperature limit of the preset temperature range. When the ambient temperature is lower than 20°C, the air supply device 100 is controlled to increase the air supply volume. Thus, although increasing the air supply volume will cause the air supply temperature to drop when the heating power remains unchanged, the increase in air supply volume or wind speed can accelerate the airflow circulation in the target space and blow the heated air to a farther area. By utilizing the rising characteristic of hot air, the heated air can fill the target space more quickly under the action of airflow circulation, thereby improving heating efficiency.

[0259] Because the air supply device 100 increases the air supply volume based on the corresponding operating parameters and maintains operation for a certain period of time, the air temperature in the target space is raised in a short period of time. At this point, the control unit 104 again compares the current ambient temperature with the preset temperature range, executing step S329. If the ambient temperature meets the preset temperature range, the current operating parameters are assigned to the operating parameters. In other words, the air supply volume is increased to 140 m³ / h. When the ambient temperature is within the range of 20-35°C, the current air supply volume is maintained. At this point, since the ambient temperature in the target space has met the requirements, maintaining the target parameters can provide the user with the desired warm air.

[0260] In this way, the corresponding operating parameters can be quickly adjusted to provide users with warm air that meets their requirements while adapting to more target spaces.

[0261] In addition, in this embodiment, the air supply device 100 can also increase the heating amount by increasing the heating power, thereby improving the heating efficiency of the target space.

[0262] When the ambient temperature is higher than 35°C, the air supply device 100 is controlled to increase the air supply volume or reduce the heating power. Specifically, the air supply device 100 may be controlled to reduce the heating power or even stop the operation of the heating unit 102. This can quickly reduce the air temperature in the target space and bring the ambient temperature down to a preset temperature range suitable for the first adjustment step.

[0263] In addition, in this embodiment, after adjusting the operating parameters and running for a certain period of time, the ambient temperature is compared with the preset temperature range again. When the ambient temperature still does not meet the preset temperature range, the preset number of judgments will be calculated. When the number of judgments is equal to or exceeds the preset number of judgments, the air supply device 100 will stop running and output an alarm signal. At this time, it can be considered that the second detection part 103 and / or the heating part 102 and other components are damaged, so that the user can perform maintenance as soon as possible to resolve the fault.

[0264] Similarly, when the total power of the heating portion 102 is lower than the target power, the first heating plate may be replaced with a second heating plate to make the total power of the heating portion 102 close to the target power.

[0265] It should also be noted that directional terms such as "upper," "lower," "front," "back," "left," and "right" mentioned in the embodiments are merely references to the drawings and are not intended to limit the scope of protection of the present disclosure. Throughout the drawings, identical elements are represented by identical or similar reference numerals. Conventional structures or configurations will be omitted where they may cause confusion in understanding the present disclosure.

[0266] The embodiments of the present disclosure are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although each embodiment has been described separately above, this does not mean that the measures in each embodiment cannot be used in combination to advantage. The scope of the present disclosure is defined by the appended claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. An air supply device, characterized in that: include, an air supply unit configured to generate airflow in a directional manner; a heating unit configured to heat the airflow passing through the air supply device; a first detection unit configured to obtain an operating voltage of the air supply device; The control unit is configured to adjust the operating parameters of the air supply device according to the operating voltage.

2. The air supply device according to claim 1, characterized in that: The operating parameters include the air supply volume output by the air supply unit; The control unit is configured to control the air supply volume according to the operating voltage, and the air supply volume is positively correlated with the operating voltage.

3. The air supply device according to claim 2, characterized in that: The air supply unit has a minimum air supply volume, and the minimum air supply volume is positively correlated with the operating voltage; Wherein, the air supply unit is configured to operate in a state where the air supply volume is greater than or equal to the minimum air supply volume.

4. The air supply device according to claim 2 or 3, characterized in that: The air supply unit includes: motor; The fan blades are arranged at the output end of the motor, and the control unit is configured to adjust the rotation speed of the motor according to the working voltage.

5. The air supply device according to claim 1, characterized in that: The heating portion includes a heating plate group, at least a portion of the heating plates in the heating plate group has a first step resistance, and at least another portion of the heating plates in the heating plate group has a second step resistance; Wherein, the first step resistance should be configured to be greater than the second step resistance; And / or, the heating plate group includes a first heating plate group and a second heating plate group, and the first heating plate group and the second heating plate group are arranged side by side along the first direction; And / or, the first heating plate group includes at least one first heating plate, and the second heating plate group includes at least one second heating plate; wherein the first heating plate is adapted to a first rated voltage, the second heating plate is adapted to a second rated voltage, and the first rated voltage is configured to be greater than the second rated voltage; And / or, the first heating plate group comprises at least two first heating plates, and the at least two first heating plates are arranged in sequence along a second direction, and the second direction forms an angle with the first direction.

6. The air supply device according to claim 1, wherein: The heating portion includes a heating plate group, at least a portion of the heating plates in the heating plate group has a first step resistance, and at least another portion of the heating plates in the heating plate group has a second step resistance; Wherein, the first step resistance should be configured to be greater than the second step resistance; And / or, the heating plate group includes a first heating plate group and a second heating plate group, and the first heating plate group and the second heating plate group are arranged side by side along the first direction; And / or, the first heating plate group includes at least one first heating plate, and the second heating plate group includes at least one second heating plate; wherein the first heating plate is adapted to a first rated voltage, the second heating plate is adapted to a second rated voltage, and the first rated voltage is configured to be greater than the second rated voltage; And / or, the first heating plate group further comprises at least one second heating plate, the second heating plate and the first heating plate are arranged sequentially or alternately along a second direction, and the second direction forms an angle with the first direction.

7. The air supply device according to claim 1, characterized in that: The operating parameters also include the heating power of the heating unit; The control unit is configured to control the heating power according to the operating voltage, and the heating power is negatively correlated with the operating voltage.

8. The air supply device according to claim 1, characterized in that: The control unit is further configured to obtain a target operating parameter corresponding to the operating voltage based on the operating voltage.

9. The air supply device according to claim 8, characterized in that: The control unit is further configured to obtain a target preset voltage corresponding to the operating voltage based on the operating voltage; The control unit has at least two different preset voltages, and the control unit further obtains the target operating parameter corresponding to the target preset voltage through the target preset voltage.

10. The air supply device according to claim 8 or 9, characterized in that: The control unit has at least two control gears, each of the at least two control gears corresponds to a different preset operating parameter, and at least two of the control gears correspond to the same operating voltage; The control unit is further configured to determine a target control gear from at least two of the control gears in response to receiving a gear control signal, and control the air supply device to operate with the target operating parameters based on the target control gear.

11. The air supply device according to claim 8, characterized in that: The control unit is further configured to calculate the target operating parameter according to the operating voltage.

12. The air supply device according to claim 11, characterized in that: The control unit is further configured to obtain target operating parameters according to a ratio of the operating voltage to the target preset voltage and preset operating parameters.

13. A control method for the air supply device according to any one of claims 1 to 12, characterized in that: include: Obtaining the operating voltage of the air supply device; Adjust the operating parameters of the air supply device according to the working voltage.

14. The control method according to claim 13, characterized in that: The step of adjusting the operating parameters of the air supply device according to the operating voltage includes: adjusting the air supply volume of the air supply unit and / or adjusting the heating power of the heating unit according to the operating voltage; The air supply volume is positively correlated with the operating voltage, and the heating power is negatively correlated with the operating voltage.

15. The control method according to claim 14, characterized in that: The step of adjusting the operating parameters of the air supply device according to the operating voltage further includes: According to the operating voltage, a target operating parameter corresponding to the operating voltage is obtained.

16. The control method according to claim 15, characterized in that: The acquiring, based on the operating voltage, a target operating parameter corresponding to the operating voltage, includes: According to the operating voltage, obtaining a target preset voltage corresponding to the operating voltage; Obtaining the target operating parameter corresponding to the target preset voltage through the target preset voltage; The air supply device operates with the target operating parameters; Wherein, the air supply device has at least two different preset voltages.

17. The control method according to claim 15, characterized in that: The acquiring, based on the operating voltage, a target operating parameter corresponding to the operating voltage, includes: The target operating parameter is calculated according to the operating voltage.

18. The control method according to claim 17, characterized in that: The calculating the target operating parameter according to the operating voltage includes: Target operating parameters are obtained according to the ratio of the operating voltage to the target preset voltage and the preset operating parameters.

19. The control method according to claim 18, characterized in that: Calculate the operating parameters according to the ratio and the preset operating constant and the constant k, Here, k is greater than 0.

20. The control method according to claim 19, characterized in that: The calculating the target operating parameter according to the operating voltage includes: The target operating parameter=(the operating voltage / the target preset voltage)×the preset operating parameter×k.

21. The control method according to claim 20, characterized in that: 0.8≤k≤1.6。 22. The control method according to claim 17, characterized in that: The calculating the target operating parameter according to the operating voltage includes: The relationship between the target operating parameter and the operating voltage satisfies the following function: The operating voltage = constant a × the target operating parameter² + constant b × the target operating parameter + constant c.

23. The control method according to claim 22, characterized in that: When the target operating parameter is the air supply volume, 0.001≤a≤0.01, b<0, 250≤c≤350; When the target operating parameter is the heating power, -0.1≤a<0, 30≤b≤40, and c<0.

24. The control method according to any one of claims 14 to 23, characterized in that: The step of adjusting the operating parameters of the air supply device according to the operating voltage includes: When the operating voltage is within a preset voltage range, adjusting the operating parameters of the air supply device; When the operating voltage is outside the preset voltage range, the air supply device is adjusted to stop running, and / or an alarm signal is output.

25. The control method according to claim 24, characterized in that: When the operating voltage is within a preset voltage range, adjusting the operating parameters of the air supply device includes: Get the ambient temperature of the target space; The operating parameters are adjusted according to the ambient temperature.

26. The control method according to claim 25, characterized in that: The adjusting the operating parameters according to the ambient temperature includes: When the ambient temperature is within a preset temperature range, the operating parameters of the air supply device are maintained.

27. The control method according to claim 26, characterized in that: The adjusting the operating parameters according to the ambient temperature further includes: When the ambient temperature is lower than the lower limit of the preset temperature range, increasing the air flow of the air supply unit and / or increasing the heating power of the heating unit until the ambient temperature is within the preset temperature range; When the ambient temperature is higher than the upper temperature limit of the preset temperature range, the air output of the air supply unit is increased and / or the heating power of the heating unit is reduced until the ambient temperature is within the preset temperature range.

28. The control method according to claim 26 or 27, characterized in that: The ambient temperature includes the return air temperature of the air supply device.

29. The control method according to claim 26, characterized in that: Maintaining the operating parameters of the air supply device includes: The operating parameters refer to target operating parameters determined according to the operating voltage, or maintain the current operating parameters of the air supply device.

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