An air conditioner

Abstract

This application discloses an air conditioner including a casing, a cavity formed by the casing, an evaporator, an electric heating device rotatably disposed within the cavity, a fan, and a controller. The controller is connected to the fan, the electric heating device, and the evaporator. The controller is configured to: when the electric heating device is in the on mode, determine the angle of the electric heating device corresponding to the maximum current value of the electric heating device as a first target angle of the electric heating device; and control the electric heating device to rotate to the first target angle. This method improves product performance without increasing the cost of the fan and the electric heating device by adjusting the angle of the electric heating device in a set working mode.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, specifically to, but not limited to, an air conditioner. Background Technology

[0002] Electric heaters are widely used in household air conditioners. The installation angle of electric heaters often affects three indicators: duct noise, duct air volume, and electric heating power. However, these three indicators often cannot be optimized simultaneously using existing air conditioning control methods.

[0003] In existing technologies, the electric heating element is often installed at a fixed angle to minimize duct noise. However, this installation angle sacrifices airflow and the low-temperature heating capacity of the electric heating element, which can only be compensated for by increasing the fan speed. This results in increased fan power, reduced efficiency, increased costs, and decreased product performance. Summary of the Invention

[0004] This application discloses an air conditioner that improves product performance without increasing the cost of the fan and electric heating device by adjusting the angle of the electric heating device in a set working mode.

[0005] The first aspect of this application discloses an air conditioner, comprising:

[0006] An outer casing having a receiving cavity;

[0007] An evaporator, wherein the evaporator is disposed within the accommodating cavity;

[0008] An electric heating device, which is rotatably disposed within the accommodating cavity, is used to generate heat;

[0009] A fan is disposed within the accommodating cavity to facilitate airflow through the evaporator and to facilitate airflow through the electric heating device to transfer heat from the electric heating device.

[0010] The controller is electrically connected to the fan, the electric heating device, and the evaporator, respectively.

[0011] The controller is configured to:

[0012] When the electric heating device is in the on mode, the angle of the electric heating device corresponding to the maximum current value of the electric heating device is determined as the first target angle of the electric heating device.

[0013] Control the electric heating device to rotate to the first target angle.

[0014] In the above technical solution, when the electric heating is in the on mode, the installation angle of the electric heating device corresponding to the maximum current of the electric heating device is taken as the first target angle to which the electric heating device needs to be rotated. Since the current of the electric heating device is the maximum when the electric heating device is at the first target angle, the heating capacity of the electric heating device is the maximum. Therefore, the heating capacity of the electric heating device can be maximized without increasing the speed of the fan, effectively improving the performance of the product.

[0015] As an optional implementation, in a first aspect of this embodiment, the controller is configured to: determine the angle of the electric heating device corresponding to the maximum current of the electric heating device as a first target angle of the electric heating device, including:

[0016] When the electric heating device is in the on mode, it is determined that the fan reaches the target speed and the current of the electric heating device remains unchanged within a preset time period. The target speed is any one of a preset plurality of speeds.

[0017] When the fan reaches the target speed and the current of the electric heating device remains constant within a preset time period, the current of the electric heating device at different times is obtained during the process of the electric heating device rotating at different angles.

[0018] The angle of the electric heating device corresponding to the maximum current of the electric heating device at different times is determined as the first target angle.

[0019] The above technical solution, when the electric heating device is in the on mode, requires first determining that the fan reaches the target speed and that the current of the electric heating device remains constant within a preset time period. Under these conditions, the maximum current is determined by acquiring the current at different moments during the rotation of the electric heating device. This allows for real-time determination of the maximum current of the electric heating device, based on actual conditions, thus providing the optimal installation angle for the electric heating device in the on mode, thereby improving its heating efficiency. Furthermore, even when the angle of the electric heating device remains unchanged and the fan rotates at the set speed, the current remains constant over a period of time, indicating that the current and angle of the electric heating device are in a relatively stable state. This provides a stable prerequisite for subsequent changes in the current caused by rotating the heating device, enhancing the accuracy of finding the maximum current during rotation. This allows for finding the optimal heating angle in the on mode, not only improving heating efficiency but also fully utilizing the heating capacity and increasing the heating power.

[0020] As an optional implementation, in a first aspect of this embodiment, the controller is configured to: determine the angle of the electric heating device corresponding to the maximum current of the electric heating device as a first target angle of the electric heating device, including:

[0021] When the electric heating device is in the on mode, based on the correspondence between multiple currents of the electric heating device and multiple angles of the electric heating device, the angle of the electric heating device corresponding to the maximum current of the electric heating device is determined as the first target angle. The multiple currents of the electric heating device include the maximum current of the electric heating device, and the multiple angles of the electric heating device include the first target angle of the electric heating device.

[0022] The above technical solution, when the electric heating device is in the on mode, can obtain the angle of the electric heating device corresponding to the maximum current of the electric heating device as the first target angle by pre-stored the correspondence between multiple currents of the electric heating device and multiple angles of the electric heating device in the controller. In this case, since the current of the electric heating device includes the maximum current of the electric heating device, and the multiple angles of the electric heating device also include the first target angle of the electric heating device, it is not necessary to conduct experiments again to find the angle of the electric heating device corresponding to the maximum current of the electric heating device. The electric heating device can be rotated to the first target angle according to the optimal electric heating device angle, thereby improving the heat dissipation efficiency of the electric heating device in a more efficient way, so that the heating capacity of the electric heating device can be fully utilized and the power of the electric heating device can be improved.

[0023] As an optional implementation, in a first aspect of this embodiment, the controller is further configured to:

[0024] When the electric heating device is in the off mode and the fan is in the first speed mode, the angle of the electric heating device corresponding to the maximum current of the fan is determined as the second target angle of the electric heating device, and the first speed is the highest speed among a plurality of preset speeds;

[0025] Control the electric heating device to rotate to the second target angle.

[0026] In the above technical solution, when the electric heating device is in the off mode and the fan is in the first speed mode, the installation angle of the electric heating device corresponding to the maximum current of the fan is taken as the second target angle to which the electric heating device needs to be rotated. Since the fan current is the maximum and the fan speed is the maximum when the electric heating device is in the second target angle, it means that the angle of the electric heating device can reduce the wind resistance in the air duct, thereby increasing the air volume of the air duct.

[0027] As an optional implementation, in a first aspect of this embodiment, the controller is configured to: determine the angle of the electric heating device corresponding to the maximum current of the fan as the second target angle of the electric heating device, including:

[0028] When the electric heating device is in the off mode, it is determined that the fan reaches the first speed and the current of the fan remains unchanged within a preset time period;

[0029] When the fan reaches the first speed and the current of the fan remains constant within a preset time period, the current of the fan at different times is obtained during the process of the electric heating device rotating at different angles.

[0030] The angle of the electric heating device corresponding to the maximum current of the fan at different times is determined as the second target angle.

[0031] The above technical solution, when the electric heating device is in the on mode, requires first determining that the fan reaches the first speed and that the current of the electric heating device remains constant within a preset time period. Under the condition that the fan reaches the first speed and the current of the electric heating device remains constant within the preset time period, the maximum fan current is determined by obtaining the fan current at different times during the rotation of the electric heating device. The maximum fan current can be obtained in real time by combining the actual situation, thereby obtaining the optimal installation angle when the electric heating is in the on mode, which helps to improve the heating efficiency of the electric heating device. Furthermore, the angle of the electric heating device remained unchanged, and the fan rotated at the set speed. The fan current also remained constant over a period of time, indicating that the fan current and the angle of the electric heating device were in a relatively stable state. This provides a stable prerequisite for subsequent changes in the fan current caused by rotating the electric heating device, thus enhancing the accuracy of finding the maximum fan current during the rotation of the electric heating device. This allows for finding the optimal electric heating device angle when the electric heating device is in the off mode and the fan reaches its first rotational speed. At this point, the fan current is at its maximum, indicating that finding the optimal electric heating device angle minimizes air resistance within the duct, thereby increasing the airflow.

[0032] As an optional implementation, in a first aspect of this embodiment, the controller is configured to: determine the angle of the electric heating device corresponding to the maximum current of the fan as the second target angle of the electric heating device, including:

[0033] When the electric heating device is in the off mode and the fan is in the first speed mode, based on the correspondence between multiple currents of the fan and multiple angles of the electric heating device, the angle of the electric heating device corresponding to the maximum current of the fan is determined as the second target angle. The multiple currents of the fan include the maximum current of the fan, and the multiple angles of the electric heating device include the second target angle.

[0034] In the above technical solution, when the electric heating device is in the off mode and the fan is in the first speed mode, the angle of the electric heating device corresponding to the maximum current of the fan can be obtained as the second target angle by using the correspondence between multiple currents of the fan and multiple angles of the electric heating device stored in the controller. In this case, since the fan current includes the maximum current of the fan and the multiple angles of the electric heating device also include the second target angle of the electric heating device, it is not necessary to conduct experiments again to find the angle of the electric heating device corresponding to the maximum current of the fan. The electric heating device can be rotated to the second target angle according to the optimal electric heating device angle, thereby improving and reducing the wind resistance of the air duct and increasing the air volume of the air duct in a more efficient way.

[0035] As an optional implementation, in a first aspect of this embodiment, the controller is further configured to:

[0036] When the electric heating device is in the off mode and the fan is in the second speed mode, the angle of the electric heating device corresponding to the lowest noise value of the air conditioner is determined as the third target angle of the electric heating device. The second speed is a preset speed that is lower than the highest speed among a plurality of speeds.

[0037] Control the electric heating device to rotate to the third target angle.

[0038] In the above technical solution, when the electric heating device is in the off mode and the fan is in the second speed mode, the installation angle of the electric heating device corresponding to the lowest noise value of the air conditioner is taken as the third target angle to which the electric heating device needs to be rotated. At this time, the noise of the air conditioner is the lowest, thus improving the performance of the product.

[0039] As an optional implementation, in a first aspect of this embodiment, the controller is further configured to:

[0040] When the air conditioner is powered on for the first time, the angle of the electric heating device corresponding to the lowest noise value of the air conditioner is determined as the initial angle of the electric heating device;

[0041] Control the electric heating device to rotate to the initial angle.

[0042] The above-mentioned technical solution ensures that, when the air conditioner is first powered on, whether in a home, office or other place, the low noise level makes it almost imperceptible when the air conditioner is turned on. It will not interfere with people's rest, work, study or daily activities due to sudden high noise levels, thus avoiding negative emotions and protecting people's hearing health.

[0043] As an optional implementation, in a first aspect of this embodiment, the controller is further configured to:

[0044] When the electric heating device is in the on mode and the current of the electric heating device is outside the preset current range, the electric heating device is controlled to enter the off mode.

[0045] The above technical solution, when the electric heating device is in the on mode, if the current of the electric heating device is detected to be outside the preset range, it indicates that the electric heating device has malfunctioned. At this time, controlling the electric heating device to enter the off mode can avoid the problem that the continuous abnormal current may cause the electric heating device and other connected devices to overheat, burn out, or even cause short circuits. This protects the safety and integrity of the equipment, reduces maintenance costs and the possibility of equipment replacement, not only reduces safety risks, but also extends the service life of the air conditioner.

[0046] As an optional implementation, in a first aspect of this embodiment, the air conditioner further includes:

[0047] The display unit is connected to the controller;

[0048] The controller is also configured to:

[0049] When the electric heating device is in the on mode and the current of the electric heating device is outside the preset current range, the display unit is controlled to display the fault information of the electric heating device.

[0050] The above technical solution also includes a display unit in the air conditioner. Therefore, when the electric heating device is in the on mode, if the current of the electric heating device is detected to be outside the preset range, it indicates that the electric heating device has malfunctioned. At this time, the control display unit displays the fault information of the electric heating device, which allows users to intuitively grasp the problem at the first time. They can understand the fault of the electric heating device without complicated troubleshooting and arrange repairs in a timely manner. It also makes it easier for maintenance personnel to quickly locate the fault, improve maintenance efficiency, reduce the risk of misoperation due to unclear faults, and enhance the user experience and the convenience of air conditioner maintenance. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is a structural diagram of a wall-mounted air conditioner disclosed in an embodiment of this application;

[0053] Figure 2 This is a control flowchart of an air conditioner controller disclosed in an embodiment of this application;

[0054] Figure 3 This is a schematic structural diagram of an air conditioning control system disclosed in an embodiment of this application;

[0055] Figure 4 This is a control flowchart of another air conditioner controller disclosed in an embodiment of this application;

[0056] Figure 5 This is a control flowchart of another air conditioner controller disclosed in an embodiment of this application;

[0057] Figure 6 This is a control flowchart of another air conditioner controller disclosed in an embodiment of this application;

[0058] Figure 7 This is a control flowchart of another air conditioner controller disclosed in an embodiment of this application;

[0059] Figure 8 This is an electronic device disclosed in an embodiment of this application. Detailed Implementation

[0060] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0061] It should be noted that the terms "first, second, third" used in the embodiments of this application are used to distinguish similar or different objects and do not represent a specific order of objects. It can be understood that "first, second, third" can be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0062] It should be noted that the terms "comprising" and "having," and any variations thereof, in the embodiments and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0063] Electric heating devices are increasingly used in household air conditioners, primarily to provide heating in low-temperature environments, especially during cold seasons when the air conditioner's regular heating function is inefficient. The installation angle of the electric heating device is a crucial factor affecting air conditioner performance, directly impacting three key indicators: duct noise, airflow, and the device's power. However, in current air conditioning control methods, these three indicators are often difficult to optimize simultaneously.

[0064] However, in related technologies, air conditioning control methods often fix the installation angle of the electric heating device during the design phase to minimize duct noise. While this approach effectively reduces noise, it sacrifices two other key indicators—duct airflow and electric heating device power. To compensate for insufficient duct airflow, air conditioning systems typically increase fan speed. While this increases airflow, it also increases fan power consumption and reduces overall system efficiency. Furthermore, the low-temperature heating capacity of the electric heating device may also be affected. Therefore, controlling air conditioning systems to address these three indicators—duct noise, duct airflow, and electric heating device power—to improve overall performance without increasing system costs remains a challenge for current technological development.

[0065] To address the aforementioned issues, this application discloses an air conditioner that improves product performance without increasing the cost of the fan and electric heating device by adjusting the installation angle of the electric heating device under different operating modes.

[0066] It is understood that the air conditioner in the embodiments of this application may include floor-standing air conditioners, ducted air conditioners, and portable air conditioners, etc., and no specific limitation is made here. It may also include wall-mounted air conditioners, window air conditioners, ceiling-mounted air conditioners, and portable air conditioners, etc., etc., and no specific limitation is made here.

[0067] The following section uses a wall-mounted air conditioner as an example to describe in detail the internal structure of the air conditioner and the control flow of the air conditioner controller proposed in the embodiments of this application.

[0068] Please see Figure 1 , Figure 1This application discloses a structural diagram 100 of a wall-mounted air conditioner, including a casing 1, an evaporator 12, a fan 14, an electric heating motor 131, and an electric heating device 132. A receiving cavity 10 is formed within the casing 1, and the evaporator 12, electric heating device 132, and fan 14 are all disposed within the receiving cavity. The casing 1 is provided with a return air inlet 11 and an air outlet 15 communicating with the receiving cavity 10. The return air inlet 11 is located at the rear of the casing 1, and the air outlet 15 is disposed opposite to the return air inlet 11. A heat exchange air duct can be formed through the casing 1, the receiving cavity 10, the return air inlet 11, and the air outlet 15. The return air inlet 11, evaporator 12, electric heating device 132, fan 14, and air outlet 15 are arranged sequentially according to the airflow direction of the heat exchange air duct. The fan 14 includes a fan motor 141, a cross-flow fan 142, and a fan volute 143. It's understandable that in horizontal household air conditioners, such as wall-mounted air conditioners, the indoor unit's evaporator, electric heating device, and fan are all installed horizontally on the heat exchange duct of the casing. In vertical air conditioners, such as floor-standing air conditioners, the indoor unit's evaporator, electric heating device, and fan are installed vertically on the heat exchange duct of the casing. Below is a brief introduction to the various components of the air conditioner. Return air vent 11 is mainly used to circulate indoor air back to the air conditioning equipment for cooling or heating.

[0069] The return air vent 11 of a wall-mounted air conditioner is typically located at the bottom or side of the unit. Understandably, the location of the return air vent 11 varies depending on the type of air conditioner. For example, in a floor-standing unit, the return air vent 11 is generally located at the bottom or middle of the unit, relying on natural airflow for intake. In contrast, the return air vent 11 of a central air conditioning system is usually installed on the ceiling or wall, and its design is relatively dispersed, often present in multiple rooms. Furthermore, the return air vent 11 of a window air conditioner is typically located at the back or side of the unit, facing the window. The air conditioner draws in outside air through these return air vents 11 and heats it.

[0070] In addition, the shape of the return air vent 11 is usually designed as a large-area grille or mesh, which helps the air flow and balance within the entire system, while effectively reducing energy waste.

[0071] The evaporator 12, located within the housing 10, is primarily responsible for absorbing heat from the room and transferring it to the refrigerant, thereby achieving cooling. To ensure efficient airflow through the evaporator 12, it is typically designed to be located near airflow points. For example, in a wall-mounted air conditioner, the evaporator 12 is positioned near the air outlet 15 to ensure smooth airflow and cooling.

[0072] Optionally, the evaporator 12 can be in many shapes and can be selected according to actual needs. For example, the shape of the coil and the design of the fins are not specifically limited here.

[0073] An electric heating device 132 is rotatably disposed within the accommodating cavity 10 and is used to generate heat. The main function of the electric heating device 132 is to provide heat, especially in low-temperature environments when the heating function of the air conditioner is insufficient. The electric heating device 132 converts electrical energy into heat energy, thereby raising the indoor temperature and enhancing the heating effect of the air conditioner.

[0074] Optionally, the electric heating device can come in various shapes, which can be selected according to the actual situation, such as... Figure 1 The electric heating device 132 of the wall-mounted air conditioner shown is in the shape of a tubular heating element. However, it can also be configured as a plate-shaped heating element, etc., without specific limitations.

[0075] Tubular electric heating elements are typically long and narrow or spiral-shaped, providing a large surface area for efficient heat conduction. Plate-type electric heating elements 132 are thinner and can usually be placed in appropriate locations within the air conditioner, providing uniform heat distribution.

[0076] Optionally, the electric heating device 132 can be rotatably installed in the heat exchange duct to ensure that heat can be transferred to the indoor air in a timely manner through the fan 14, providing a uniform heating effect.

[0077] Optionally, there are many types of electric heating devices 132, which can be selected according to the actual situation. For example, positive temperature coefficient (PTC) electric heating devices 132, electromagnetic heating, ceramic heating and far-infrared heating, etc., are not specifically limited here.

[0078] In this embodiment, the air conditioner primarily uses a PTC electric heating device 132 because it is a technology based on a positive temperature coefficient thermistor material. The characteristic of PTC material is that its resistance increases with increasing temperature. Unlike traditional electric heating elements, the resistance of the PTC element gradually increases with rising temperature, leading to a decrease in current and thus limiting excessively high temperatures, making the heating process safer.

[0079] Alternatively, there are many types of PTC electric heating devices 132, which can be selected according to actual needs, such as PTC ceramic heating elements, PTC polymer heating elements, and glass fiber heating elements, etc., without specific limitations.

[0080] A fan 14 is disposed within the accommodating cavity 10. On one hand, the fan 14 promotes airflow through the evaporator, evenly distributing the cooled air from the evaporator 12 into the room to achieve cooling. Because the fan 14 promotes airflow, it prevents the concentration of cooled air in one area, thus improving comfort. On the other hand, the fan 14 can also evenly distribute air heated by the electric heating device into the room to achieve heating and temperature maintenance. Furthermore, because the fan 14 promotes airflow, it not only prevents heat concentration in one area, improving comfort, but also increases heating efficiency. In addition, when the electric heating device 132 is operating, it prevents the heating element from overheating and being damaged due to excessive temperature.

[0081] When the electric heating device is in the on mode, the electric heating device generates heat. The fan 14 is used to promote airflow through the electric heating device 132 to transfer the heat of the electric heating device 132. Specifically, after the electric heating device 132 is powered on, its heat is transferred to the external heat dissipation aluminum fins. During the rotation of the fan 14, the airflow is drawn in from the return air port 11, and then blown through the gaps of the heat dissipation aluminum fins to the air outlet 15 after passing through the fan, thus completing the heat transfer.

[0082] In the embodiments of this application, such as Figure 1 As shown, the fan 14 is positioned between the electric heating device 132 and the air outlet 15, which not only ensures that the heated air can be quickly blown to the air conditioning outlet, but also helps the hot air to be blown out evenly directly from the air conditioning outlet, thereby increasing the heating speed in the room.

[0083] Optionally, the fan 14 can also be located near the return air vent 11 to help draw in indoor air and blow it to the heating element for heating.

[0084] Optionally, the shape of the fan 14 can be varied and can be selected according to the actual situation, such as axial flow fan 14, centrifugal fan 14, mixed flow fan 14, turbine fan 14 and mixed flow fan 14, etc., without specific restrictions.

[0085] The main function of the air outlet 15 is to effectively distribute the cool or hot air from the indoor unit of the air conditioner throughout the room. Its location and shape are very important. A suitable location and shape not only help create good airflow and even air distribution, avoiding uneven heating and cooling, but also prevent dead zones and air stagnation, enhancing air freshness. A suitable shape for the air outlet 15 allows users to control the direction of airflow to adapt to different air conditioning needs. For example, adjusting the airflow direction can prevent direct cold air blowing or better distribute air, improving comfort.

[0086] In the embodiments of this application, such as Figure 1As shown, the air outlet 15 of a wall-mounted air conditioner is located on the front of the unit. It's understandable that the location of the air outlet may vary depending on the type of air conditioner. For example, the air outlet 15 of a floor-standing unit is typically located at the top or middle of the unit, designed as a large, elongated shape or multiple small openings to quickly deliver air to all corners of the room. As another example, the air outlet 15 of a central air conditioning system is usually installed on the ceiling and distributed throughout the room. Yet another example is a window air conditioner, where the air outlet 15 is often located at the front or top of the unit. These air outlets 15 face directly into the room, their purpose being to deliver cool air (or warm air, if it's a heat pump air conditioner) into the room.

[0087] Optionally, the shape of the air outlet 15 can also be varied and can be selected according to actual needs. For example, it can be a circular air outlet 15, a square air outlet 15, a grille-type air outlet 15, or an air outlet 15 without a grille, etc. There are no specific limitations here.

[0088] In the embodiments of this application, the above structural diagrams of the air conditioner can facilitate understanding of the internal structure of the air conditioner disclosed in the embodiments of this application, as well as the functions of each component constituting the air conditioner. It should be understood that the above examples are merely illustrative and should not be construed as limiting the structure of the air conditioner.

[0089] Air conditioners also include a controller, which connects to the fan, electric heating element, and evaporator. The following section details how the air conditioner's controller adjusts the installation angle of the electric heating element according to different operating modes, thereby improving product performance without increasing the cost of the fan and electric heating element.

[0090] In this embodiment of the application, the controller of the air conditioner is configured to: when the electric heating device 132 is in the on mode, determine the angle of the electric heating device 132 corresponding to the maximum current value of the electric heating device 132 as the first target angle of the electric heating device 132; and control the electric heating device 132 to rotate to the first target angle.

[0091] In this technical solution, when the electric heating is in the on mode, the installation angle of the electric heating device corresponding to the maximum current of the electric heating device is taken as the first target angle to which the electric heating device needs to be rotated. Since the current of the electric heating device is the maximum when the electric heating device is at the first target angle, the heating capacity of the electric heating device is the maximum. Therefore, the heating capacity of the electric heating device can be maximized without increasing the speed of the fan, effectively improving the performance of the product.

[0092] To gain a clearer understanding of the control method of this air conditioner controller, please refer to [link / reference]. Figure 2 , Figure 2This is a control flowchart of an air conditioner controller disclosed in an embodiment of this application. The flowchart includes at least the following steps S101-S102.

[0093] Step S101: When the electric heating device 132 is in the on mode, the controller 31 determines the angle of the electric heating device 132 corresponding to the maximum current value of the electric heating device 132 as the first target angle of the electric heating device 132.

[0094] Optionally, the electric heating device 132 may include a PTC electric heating device 132, a metal alloy heating device, a carbon fiber heating device, an electromagnetic heating device, a ceramic heating device, etc., without specific limitations.

[0095] Step S102: Controller 31 controls the electric heating device 132 to rotate to the first target angle.

[0096] It is understood that the air conditioner controller is the main control board of the indoor unit of the air conditioner, which is used to control and adjust the operating status of the air conditioning equipment. It can be operated by buttons, touch screen or remote control, and no specific restrictions are made here.

[0097] For example, this application also discloses a structural schematic diagram of an air conditioning control system. Please refer to [link / reference]. Figure 3 The air conditioning control system structure diagram includes a controller 31, a fan 14, an electric heating device 132, and an electric heating motor 131. The indoor main control board of the air conditioner is connected to both the fan 14 and the electric heating device 132. Taking a wall-mounted air conditioner controlled by a remote control as an example, when the user selects the heating mode (i.e., the electric heating device 132 is on) using the remote control, the controller 31 determines the angle of the electric heating device 132 corresponding to the maximum current value of the electric heating device 132 as the first target angle of the electric heating device 132, and drives the electric heating motor 131 to rotate the electric heating device 132 to this first target angle. It can be understood that at this time, the fan 14 can evenly blow the air heated by the electric heating device 132 into the room to achieve the purpose of heating and maintaining the temperature.

[0098] Optionally, the electric heating motor 131 may include a 12V four-phase eight-beat electric heating device 132 drive motor, a DC brushless electric heating device 132 drive motor, and a 12V six-phase electric heating device 132 drive motor, etc., without specific limitations.

[0099] Optionally, the connection between the electric heating motor 131 and the electric heating device 132 may include direct coupling, pulse width modulation, mechanical linkage, and electromagnetic control, etc., without specific limitations.

[0100] In some embodiments, please refer to further information. Figure 3The controller 31 may further include a fan motor drive unit 311, an electric heating device 132 control unit 312, an electric heating device 132 current sampling unit 313, and an electric heating drive unit 314. Wherein:

[0101] The fan motor drive unit 311 is connected to the fan 14 and may include a drive chip, an IPM chip, etc. It is mainly used to control the fan 14 to rotate at a set speed when the controller 31 receives a relevant control command for the fan 14. The electric heating device 132 control unit 312 is connected to the electric heating device 132 and may include transistors or Darlington transistors, relays, etc., without specific limitations. It is mainly used to control the electric heating device 132 to rotate to the installation position at the received target angle when the controller 31 receives a relevant control command for the electric heating device 132. The electric heating device 132 current sampling unit 313 is connected to the electric heating device 132 and may include a high-precision, low-resistance sampling resistor connected in series in the current loop of the electric heating device 132, a differential operational amplifier circuit, etc., without specific limitations. It is mainly used to sample and amplify the current value flowing through the electric heating device 132 when the controller 31 receives a current sampling command for the electric heating device 132. The electric heating drive unit 314 is connected to the electric heating device 132 and includes a transistor or Darlington transistor. Based on receiving relevant signals from the controller 31, it controls the electric heating motor 131 to rotate, thereby changing the installation angle of the electric heating device 132.

[0102] Optionally, the fan motor drive unit 311, which drives the fan to rotate, can be a DC motor, AC motor, brushless DC motor, stepper motor, asynchronous motor, or frequency converter, etc., without specific limitations. The appropriate type can be selected based on actual needs.

[0103] For example, taking a wall-mounted air conditioner controlled by a remote control as an example, when the user selects the heating mode (i.e., the electric heating device 132 on mode) using the remote control 44, the controller 31 sends a high-level signal to the electric heating device 132 control unit 312 to turn on the power to the electric heating device 132, thus putting the electric heating device 132 into the on state. Then, the controller controls the electric heating device 132 current sampling unit 313 to sample and amplify the current signal of the electric heating device 132. Next, the acquired current signal is sent to the controller 31. The controller 31 determines the angle of the electric heating device 132 corresponding to the maximum current value of the electric heating device 132 as the first target angle of the electric heating device 132, and sends this first target angle information to the electric heating drive unit 314. The electric heating drive unit 314 drives the electric heating motor 131 to rotate, causing the installation position of the electric heating device 132 to rotate to the first target angle. It is understandable that at this time, the fan 14 can rotate at a certain speed according to the target speed signal sent to the fan 14 by the controller 31, and blow the air heated by the electric heating device 132 evenly into the room to achieve the purpose of heating and maintaining the temperature.

[0104] Optionally, the electric heating device 132 may include a PTC electric heating device 132, a metal alloy heating device, a carbon fiber heating device, an electromagnetic heating device, a ceramic heating device, etc., without specific limitations.

[0105] In the step of determining the angle of the electric heating device corresponding to the maximum current value of the electric heating device as the first target angle of the electric heating device, in some embodiments, this can be obtained by pre-setting multiple current values ​​of the electric heating devices 132 and corresponding multiple angle data of the electric heating devices 132 stored in the controller 31. These multiple current values ​​of the electric heating devices 132 and corresponding multiple angle data of the electric heating devices 132 can be obtained experimentally and pre-stored in the memory chip of the controller 31. The multiple current values ​​of the electric heating devices 132 include the maximum current of the electric heating devices 132, and the multiple angle values ​​of the electric heating devices 132 include the first target angle of the electric heating devices 132. That is, the air conditioner controller is configured to: when the electric heating devices 132 are in the on mode, determine the angle of the electric heating devices 132 corresponding to the maximum current of the electric heating devices 132 as the first target angle based on the correspondence between the multiple current values ​​of the electric heating devices 132 and the multiple angle values ​​of the electric heating devices 132.

[0106] Optionally, the memory chip in the controller may include both non-volatile and volatile memory. Non-volatile memory may include ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), or flash memory, etc., without specific limitations. Volatile memory may include Random Access Memory (RAM), etc., without specific limitations.

[0107] In this technical solution, when the electric heating device 132 is in the on mode, the angle of the electric heating device 132 corresponding to the maximum current is obtained as the first target angle by pre-stored the correspondence between multiple currents and multiple angles of the electric heating device 132 in the controller 31. In this case, since the current of the electric heating device 132 includes the maximum current of the electric heating device 132, and the multiple angles of the electric heating device 132 also include the first target angle of the electric heating device 132, it is not necessary to conduct experiments again to find the angle of the electric heating device 132 corresponding to the maximum current of the electric heating device 132. The electric heating device 132 can be rotated to the first target angle according to the optimal electric heating device 132 angle, thereby improving the heat dissipation efficiency of the electric heating device 132 in a more efficient way, so that the heating capacity of the electric heating device 132 can be fully utilized and the power of the electric heating device 132 can be improved.

[0108] In the above-described step of determining the angle of the electric heating device corresponding to the maximum current value of the electric heating device as the first target angle of the electric heating device, in some embodiments, the controller can also obtain the angle of the electric heating device 132 corresponding to the maximum current during the rotation of the electric heating device 132 as the first target angle by controlling the rotation of the electric heating device 132. That is, in some embodiments, the air conditioner controller 31 is configured to: when the electric heating device 132 is in the on mode, determine that the fan 14 reaches the target speed and the current of the electric heating device 132 remains unchanged within a preset time period, the target speed being any one of a preset plurality of speeds; when the fan 14 reaches the target speed and the current of the electric heating device 132 remains unchanged within the preset time period, obtain the current of the electric heating device 132 at different times during the rotation of the electric heating device 132 at different angles; and determine the angle of the electric heating device 132 corresponding to the maximum current of the electric heating device 132 at different times as the first target angle.

[0109] In this technical solution, when the electric heating device is in the on mode, it is necessary to first determine that the fan reaches the target speed and that the current of the electric heating device remains constant within a preset time period. Under these conditions, the maximum current is determined by acquiring the current at different times during the rotation of the electric heating device. This allows for real-time determination of the maximum current of the electric heating device, based on actual conditions, thus providing the optimal installation angle for the electric heating device in the on mode. This helps improve the heating efficiency of the electric heating device. Furthermore, even when the angle of the electric heating device remains unchanged and the fan rotates at the set speed, the current remains constant over a period of time, indicating that the current and angle of the electric heating device are in a relatively stable state. This provides a stable prerequisite for subsequent changes in the current caused by rotating the heating device, enhancing the accuracy of finding the maximum current during rotation. This allows for finding the optimal heating angle in the on mode, not only improving the heating efficiency but also fully utilizing the heating capacity and increasing the heating power.

[0110] For a clearer understanding of this method, please refer to [link / reference]. Figure 4 , Figure 4 The flowchart is a control method for another air conditioner controller provided in an embodiment of this application. The flowchart includes at least the following steps S201-S202.

[0111] Step S201: When the electric heating device 132 is in the on mode, the controller 31 determines that the fan 14 has reached the target speed and the current of the electric heating device 132 remains unchanged within a preset time period. The target speed is any one of a preset number of speeds.

[0112] Step S202: When the fan 14 reaches the target speed and the current of the electric heating device 132 remains constant within a preset time period, the current of the electric heating device 132 at different times is obtained during the process of the electric heating device 132 rotating at different angles.

[0113] Step S203: The controller 31 determines the angle of the electric heating device 132 corresponding to the maximum current of the electric heating device 132 at different times as the first target angle.

[0114] Step S204: Controller 31 controls the electric heating device 132 to rotate to the first target angle.

[0115] In some embodiments, the controller 31 further includes a fan speed feedback unit 315; please refer to further details. Figure 3The fan speed feedback unit 315 is connected to the fan 14 and may include a motor phase current sampling resistor, a differential operational amplifier circuit, etc. There are no specific limitations here. It is mainly used to obtain the periodically changing current amplitude or frequency of the fan 14, so that the controller 31 can determine the rotation speed of the fan 14 based on the periodically changing current amplitude or frequency.

[0116] Alternatively, the speed feedback of the fan 14 can also be achieved using other methods such as Hall effect sensors, without any specific restrictions here.

[0117] For example, taking a wall-mounted air conditioner controlled by remote control 44, and the electric heating motor 131 being a 12V four-phase eight-step stepper motor, when the user selects the heating mode using the remote control (i.e., the electric heating device 132 is in the on mode), the controller 31 sends a high-level signal to the electric heating device 132 control unit 312 to connect the power supply to the electric heating device 132, thus turning the electric heating device 132 on. Furthermore, the controller 31 also sends a target speed rotation signal to the fan motor drive unit 311, which controls the fan 14 to rotate at the set target speed based on this signal. This target speed is any one of a preset set of speeds. Next, the controller 31 controls the electric heating device 132 current sampling unit 313 to sample and amplify the electric heating device 132 current signal, and controls the fan speed feedback unit 315 to obtain the periodically changing current amplitude or frequency of the fan 14. Next, the sampling unit samples the current signal of the electric heating device 132 and the periodically changing current amplitude or frequency of the fan 14, and sends them to the controller 31. The controller 31 determines whether the current of the electric heating device 132 has changed based on the current acquired over a period of time. The controller 31 also obtains the rotational speed of the fan 14 based on the periodically changing current amplitude or frequency, and determines whether the rotational speed of the fan 14 has reached the set target speed. If the controller 31 determines that the current of the electric heating device 132 has not changed over a period of time and that the rotational speed of the fan 14 has reached the set target speed, it sends a four-phase eight-beat pulse width modulation signal to the electric heating drive unit 314 of the electric heating device 132. The electric heating drive unit 314 drives the stepper motor to rotate the electric heating device 132 at different angles. In this case, the controller acquires the current of the electric heating device 132 at different rotation angles and compares the current of the electric heating device 132 at different times to obtain the rotation angle of the electric heating device 132 when the current of the electric heating device 132 is at its maximum as the first target angle. The first target angle is the angle position corresponding to the maximum power of the electric heating device 132 in this mode. The controller 31 controls the stepper motor to drive the electric heating device 132 to rotate to the first target angle and maintain it at the first target angle.

[0118] In some embodiments, the controller is further configured to: when the electric heating device 132 is in a closed mode and the fan 14 is at a first speed, determine the angle of the electric heating device 132 corresponding to the maximum current of the fan 14 as the second target angle of the electric heating device 132, where the first speed is the highest speed among a plurality of preset speeds; and control the electric heating device 132 to rotate to the second target angle. In this solution, when the electric heating device is in a closed mode and the fan is at the first speed, the installation angle of the electric heating device corresponding to the maximum current of the fan is used as the second target angle to which the electric heating device needs to rotate. Since the fan current is at its maximum and the fan speed is at its maximum when the electric heating device is at the second target angle, it indicates that the found angle of the electric heating device can reduce the wind resistance in the duct, thereby increasing the airflow in the duct.

[0119] To gain a clearer understanding of the control method of this air conditioner controller, please refer to [link / reference]. Figure 5 , Figure 5 This is a control flowchart of an air conditioner controller disclosed in an embodiment of this application. The flowchart includes at least the following steps S301-S302.

[0120] Step S301: When the electric heating device 132 is in the off mode and the fan 14 is in the first speed mode, the controller 31 determines the angle of the electric heating device 132 corresponding to the maximum current of the fan 14 as the second target angle of the electric heating device 132.

[0121] The first speed is the highest speed among a set of preset speeds.

[0122] Step S302: Controller 31 controls the electric heating device 132 to rotate to the second target angle.

[0123] For example, please refer to further reading Figure 3 Taking a wall-mounted air conditioner controlled by remote control 44 as an example, when the user selects a high-speed non-heating mode using remote control 44, i.e., the electric heating device 132 is in the off mode and the fan 14 is in the high-speed mode, the controller 31 determines the angle of the electric heating device 132 corresponding to the maximum current value of the fan 14 as the second target angle of the electric heating device 132, and drives the electric heating motor 131 to rotate the electric heating device 132 to this first target angle. It can be understood that at this time, the fan 14 can evenly blow the air heated by the electric heating device 132 into the room to achieve the purpose of heating and maintaining the temperature.

[0124] In the step of determining the angle of the electric heating device corresponding to the maximum current value of the electric heating device as the second target angle of the electric heating device, in some embodiments, the controller can obtain this information by pre-setting multiple fan 14 currents and corresponding multiple angle data of the electric heating device 132 stored in the controller 31. These multiple fan 14 currents and corresponding multiple angle data of the electric heating device 132 can be obtained experimentally and pre-stored in the memory chip of the controller 31. The multiple fan 14 currents include the maximum current of the fan 14, and the multiple angles of the electric heating device 132 include the second target angle of the electric heating device 132. That is, in some embodiments, the air conditioning controller 31 is configured to: when the electric heating device 132 is in the off mode and the fan 14 is in the first speed mode, determine the angle of the electric heating device 132 corresponding to the maximum current of the fan 14 as the second target angle based on the correspondence between the multiple currents of the fan 14 and the multiple angles of the electric heating device 132, where the multiple fan 14 currents include the maximum current of the fan 14 and the multiple angles of the electric heating device 132 include the second target angle.

[0125] Optionally, the memory chip in the controller 31 may include both non-volatile and volatile memory chips. Non-volatile memory may include ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), or flash memory, etc., without specific limitations. Volatile memory may include random access memory (RAM), etc., without specific limitations.

[0126] In this technical solution, when the electric heating device 132 is in the off mode and the fan 14 is in the first speed mode, the angle of the electric heating device 132 corresponding to the maximum current of the fan 14 can be obtained as the second target angle by using the correspondence between multiple currents of the fan 14 and multiple angles of the electric heating device 132 stored in the controller 31. In this case, since the current of the fan 14 includes the maximum current of the fan 14, and the multiple angles of the electric heating device 132 also include the second target angle of the electric heating device 132, it is not necessary to conduct experiments again to find the angle of the electric heating device 132 corresponding to the maximum current of the fan 14. The electric heating device 132 can be rotated to the second target angle according to the optimal electric heating device 132 angle, thereby improving and reducing the wind resistance of the air duct and increasing the air volume of the air duct in a more efficient way.

[0127] In the step of determining the angle of the electric heating device corresponding to the maximum current value of the electric heating device as the second target angle of the electric heating device, in some embodiments, the controller can also obtain the angle of the electric heating device 132 corresponding to the maximum current of the fan 14 during the rotation of the electric heating device 132 as the second target angle by controlling the rotation of the electric heating device 132. That is, the air conditioner controller 31 is configured to: when the electric heating device 132 is in the off mode, determine that the fan 14 reaches a first speed and the current of the fan 14 remains unchanged within a preset time period; when the fan 14 reaches the first speed and the current of the fan 14 remains unchanged within the preset time period, obtain the current of the fan 14 at different times during the rotation of the electric heating device 132 at different angles; and determine the angle of the electric heating device 132 corresponding to the maximum current of the fan 14 at different times as the second target angle. In this method, when the electric heating device is in the on mode, it is necessary to first determine that the fan reaches the first speed and that the current of the electric heating device remains constant within a preset time period. Under these conditions, the maximum fan current is determined by acquiring the fan current at different times during the rotation of the electric heating device. This allows for real-time determination of the maximum fan current in conjunction with actual conditions, thus providing the optimal installation angle for the electric heating device in the on mode, thereby improving its heating efficiency. Furthermore, if the angle of the electric heating device remains unchanged and the fan rotates at the set speed, and the fan current does not change over a period of time, it indicates that the fan current and the angle of the electric heating device are in a relatively stable state. This provides a stable prerequisite for subsequent changes in the fan current caused by rotating the electric heating device, enhancing the accuracy of finding the maximum fan current during the rotation of the electric heating device. This allows for finding the optimal electric heating device angle when the electric heating device is in the off mode and the fan reaches the first speed. At this point, the fan current is at its maximum, indicating that finding the optimal electric heating device angle minimizes air resistance within the duct, thereby increasing airflow.

[0128] For a clearer understanding of this method, please refer to [link / reference]. Figure 6 , Figure 6 The flowchart is a control method for another air conditioner controller provided in the embodiments of this application, which includes at least the following steps S401-S402.

[0129] Step S401: When the electric heating device 132 is in the off mode, the controller 31 determines that the fan 14 has reached the first speed and the current of the fan 14 remains unchanged within a preset time period.

[0130] Step S402: When the fan 14 reaches the first speed and the current of the fan 14 remains unchanged within a preset time period, the current of the fan 14 at different times is obtained during the process of the electric heating device 132 rotating at different angles.

[0131] Step S403: The controller 31 determines the angle of the electric heating device 132 corresponding to the maximum current of the fan 14 at different times as the second target angle.

[0132] Step S404: Controller 31 controls the electric heating device 132 to rotate to the second target angle.

[0133] In some embodiments, the controller 31 further includes a fan current sampling unit 316; please refer to further details. Figure 3 The motor current sampling includes a high-precision, low-resistance sampling resistor and a differential operational amplifier circuit connected in series in the current loop of the fan 14 bus, which is used to sample and amplify the current value of the fan 14 bus.

[0134] For example, please refer to further reading Figure 3Taking a wall-mounted air conditioner controlled by a remote control, with the electric heating motor 131 being a 12V four-phase eight-step stepper motor as an example, when the user selects a high-speed non-heating mode using the remote control (i.e., the electric heating device 132 is in off mode and the fan 14 is in high-speed mode), the controller 31 sends a low-level signal to the electric heating device 132 control unit 312 to disconnect the power supply to the electric heating device 132, thus turning it off. Furthermore, the controller 31 also sends a high-speed rotation signal to the fan motor drive unit 311, which controls the fan 14 to rotate at the set high speed based on this high-speed signal. Next, the controller 31 controls the fan 14 current sampling unit to sample and amplify the fan 14 current signal, and the controller 31 also controls the fan speed feedback unit 315 to obtain the periodically changing current amplitude or frequency of the fan 14. Next, the sampling unit samples the fan 14, and the fan speed feedback unit 315 sends the acquired fan 14 current signal and the periodically changing current amplitude or frequency of the fan 14 to the controller 31. The controller 31 determines whether the fan 14 current has changed based on the acquired fan 14 current over a period of time. The controller 31 also obtains the fan speed based on the acquired periodically changing current amplitude or frequency and determines whether the fan speed has reached the set target speed. If the controller 31 determines that the acquired fan 14 current has not changed over a period of time and that the fan speed has reached the set target speed, it sends a four-phase eight-beat pulse width modulation signal to the electric heating device 132 electric heating drive unit 314. The electric heating drive unit 314 drives the stepper motor to rotate the electric heating device 132 at different angles. In this case, the controller 31 obtains the fan 14 current at different rotation angles of the electric heating device 132 and compares the fan 14 current at different times to obtain the rotation angle of the electric heating device 132 when the fan 14 current is the largest as the second target angle. The second target angle is the angular position of the electric heating device 132 corresponding to the minimum wind resistance and maximum air volume of the duct in this mode. The controller 31 controls the stepper motor to drive the electric heating device 132 to rotate to the second target angle and maintain it according to the second target angle.

[0135] In some embodiments, the controller 31 is further configured to: when the electric heating device 132 is in a closed mode and the fan 14 is in a second speed mode, determine the angle of the electric heating device 132 corresponding to the lowest noise value of the air conditioner as the third target angle of the electric heating device 132, where the second speed is a preset speed that is lower than the highest speed; and control the electric heating device 132 to rotate to the third target angle. In this technical solution, when the electric heating device 132 is in a closed mode and the fan 14 is in the second speed mode, the installation angle of the electric heating device 132 corresponding to the lowest noise value of the air conditioner is used as the third target angle to which the electric heating device 132 needs to rotate. At this time, the noise of the air conditioner is the lowest, thus improving the performance of the product.

[0136] For a clearer understanding of this method, please refer to [link / reference]. Figure 7 , Figure 7 The flowchart is a control method for another air conditioner controller provided in the embodiments of this application, which includes at least the following steps S501-S502.

[0137] Step S501: When the electric heating device 132 is in the off mode and the fan 14 is in the second speed mode, the controller 31 determines the angle of the electric heating device 132 corresponding to the lowest noise value of the air conditioner as the third target angle of the electric heating device 132.

[0138] The second speed is the speed that is lower than the highest speed among a set of preset speeds;

[0139] Optionally, the non-high-speed mode may include a medium-speed mode or a low-speed mode, where the speed in both medium-speed and low-speed modes is lower than the maximum speed.

[0140] Optionally, the angle of the electric heating device 132 corresponding to the lowest noise value of the air conditioner can be the lowest noise angle obtained in advance through experiments under the same air conditioner configuration.

[0141] Step S502: Controller 31 controls the electric heating device 132 to rotate to the third target angle.

[0142] For example, please refer to further reading Figure 3Taking a wall-mounted air conditioner controlled by a remote control, with the electric heating motor 131 being a 12V four-phase eight-step stepper motor as an example, when the user selects the medium fan speed non-heating mode using the remote control 44 (i.e., the electric heating device 132 is in off mode and the fan 14 is in medium fan speed mode), the controller 31 sends a high-level signal to the electric heating device 132 control unit 312 to disconnect the power supply to the electric heating device 132, thus turning the electric heating device 132 off. Furthermore, the controller 31 sends a medium-speed rotation signal to the fan motor drive unit 311, which controls the fan 14 to rotate at the set medium speed based on this high fan speed signal. Next, the controller 31 obtains the angle of the electric heating device 132 corresponding to the lowest noise level of the air conditioner as the third target angle. This third target angle is the angle position corresponding to the minimum noise in this mode. The controller 31 controls the stepper motor to rotate the electric heating device 132 to this third target angle and maintains it at this third target angle.

[0143] In some embodiments, the controller 31 is further configured to: when the air conditioner is powered on for the first time, the controller 31 determines the angle of the electric heating device 132 corresponding to the lowest noise value of the air conditioner as the initial angle of the electric heating device 132; the controller 31 controls the electric heating device 132 to rotate to the initial angle.

[0144] For example, please refer to further reading Figure 3 Taking a wall-mounted air conditioner controlled by remote control 44, and the electric heating motor 131 being a 12V four-phase eight-step stepper motor as an example, when the air conditioner is first powered on, the controller 31 obtains the angle of the electric heating device 132 corresponding to the lowest noise level of the air conditioner as the initial angle. This initial angle is the angle position corresponding to the minimum noise. The controller 31 controls the stepper motor to drive the electric heating device 132 to rotate to this initial angle and maintain it at this initial angle.

[0145] In this technical solution, when the air conditioner is first powered on, whether in a home, office or other place, the low noise makes it almost impossible for people to hear its operation. It will not interfere with people's rest, work, study or daily activities due to the sudden appearance of high noise. It can not only avoid causing negative emotions, but also protect people's hearing health.

[0146] In order to prevent the electric heating device 132 from causing harm due to abnormality during operation, in some embodiments, the controller 31 is also configured to control the electric heating device 132 to enter the off mode when the electric heating device 132 is in the on mode and the current of the electric heating device 132 is outside the preset current range.

[0147] For example, please refer to further reading Figure 3 Taking a wall-mounted air conditioner controlled by a remote as an example, when the electric heating device 132 is in the on mode, the controller 31 sends a high-level signal to the electric heating device 132 control unit 312 to turn on the power to the electric heating device 132, thus turning the electric heating device 132 on. The controller 31 controls the electric heating device 132 current sampling unit to sample and amplify the current signal of the electric heating device 132. Then, the acquired current signal of the electric heating device 132 is sent to the controller 31. The controller 31 determines whether the current of the electric heating device 132 is outside the preset current range. If the controller 31 determines that the current of the electric heating device 132 is outside the preset current range, the controller 31 sends a low-level signal to the electric heating device 132 control unit 312 to turn off the power to the electric heating device 132, thus turning the electric heating device 132 off.

[0148] In this technical solution, when the electric heating device 132 is in the on mode, if the current of the electric heating device 132 is detected to be outside the preset range, it indicates that the electric heating device 132 has malfunctioned. At this time, controlling the electric heating device 132 to enter the off mode can avoid the problem that the continuous abnormal current may cause the electric heating device 132 and other connected devices to overheat, burn out, or even cause short circuits. This protects the safety and integrity of the equipment, reduces maintenance costs and the possibility of equipment replacement, not only reducing safety risks but also extending the service life of the air conditioner.

[0149] In some embodiments, the air conditioner further includes a display device, and the controller 31 is further configured to:

[0150] When the electric heating device 132 is in the on mode and the current of the electric heating device 132 is outside the preset current range, the controller 31 controls the display unit 21 to display the fault information of the electric heating device 132.

[0151] Optionally, the display device is connected to the controller 31. The display device can be an LED display screen, an LCD display screen, a touch screen display screen, etc. There are no specific restrictions here, and it can be selected according to the actual situation.

[0152] For example, please refer to further reading Figure 3Taking a wall-mounted air conditioner controlled by remote control 44 as an example, when the electric heating device 132 is in the on mode, the controller 31 sends a high-level signal to the control unit 312 of the electric heating device 132 to turn on the power to the electric heating device 132, thus turning the electric heating device 132 on. The controller 31 controls the current sampling unit of the fan 14 to sample and amplify the current signal of the electric heating device 132. Then, the acquired current signal of the electric heating device 132 is sent to the controller 31. The controller 31 determines whether the current of the electric heating device 132 is outside the preset current range. If the controller 31 determines that the current of the electric heating device 132 is outside the preset current range, the controller 31 controls the display device to display the fault information of the electric heating device 132.

[0153] In this technical solution, the air conditioner also includes a display unit 21. Therefore, when the electric heating device 132 is in the on mode, if the current of the electric heating device 132 is detected to be outside the preset range, it indicates that the electric heating device 132 has malfunctioned. At this time, the control display unit 21 displays the fault information of the electric heating device 132, which allows users to intuitively grasp the problem at the first time. They can understand the fault status of the electric heating device 132 without complicated troubleshooting and arrange maintenance in a timely manner. It also makes it easier for maintenance personnel to quickly locate the fault, improve maintenance efficiency, reduce the risk of misoperation due to unknown faults, and enhance the user experience and the convenience of air conditioner maintenance.

[0154] In some embodiments, please refer to further information. Figure 3 The air conditioner may also include a left-right swing stepper motor 41, a temperature detection unit 42, an up-down swing stepper motor 43, a remote control 44, a sliding panel stepper motor 45, and an outdoor control unit 46, etc., without specific limitations. The left-right swing stepper motor 41, the temperature detection unit 42, the up-down swing stepper motor 43, the remote control 44, the sliding panel stepper motor 45, and the outdoor control unit 46 are all connected to the controller 31. Wherein:

[0155] The left-right swing stepper motor 41 is used to control the left-right swing of the air conditioner outlet 15. By precisely controlling the rotation of the stepper motor, the air conditioner can make the outlet 15 swing left and right, evenly distributing cold or warm air, avoiding a certain area being subjected to concentrated airflow for a long time, thereby improving air circulation and temperature uniformity.

[0156] The temperature detection unit 42 is primarily responsible for monitoring the temperature in the air-conditioned environment. The air conditioner adjusts its operating mode, such as cooling, heating, and fan speed, based on real-time temperature data to ensure the temperature remains within the user-set range. The accuracy of temperature detection directly affects the comfort and energy efficiency of the air conditioner.

[0157] The up-and-down swing stepper motor 43 is mainly used to control the up-and-down swing of the air conditioner outlet 15. Similar to the left-and-right swing motor, it helps the air conditioner distribute airflow to areas at different heights, ensuring a more uniform air conditioning effect, preventing hot and cold air from concentrating in a specific location, and improving the cooling or heating effect of the air conditioner.

[0158] Remote control 44 allows users to remotely control various functions of the air conditioner, such as turning it on and off, adjusting the temperature, adjusting the fan speed, adjusting the swing mode (swinging up and down or left and right), and selecting different operating modes (such as cooling, heating, dehumidifying, etc.). Remote control 44 provides users with a more convenient way to operate the air conditioner, avoiding the need to frequently go to the air conditioner to operate it.

[0159] The sliding panel stepper motor 45 is primarily used to adjust the opening and closing of the air conditioner's exterior panel, especially in some air conditioners with a concealed design. It controls the opening and closing of the control panel, thereby altering the air conditioner's appearance or affecting the direction of airflow. This function is often used to optimize the air conditioner's shape or to close the panel for aesthetic purposes when not in operation.

[0160] The outdoor control unit 46 is primarily responsible for controlling the outdoor unit, including the operation of the condenser and the switching on / off of the compressor. By precisely controlling the operating status of the outdoor unit, it ensures that the air conditioner can operate efficiently under different ambient temperatures. It may also include an outdoor temperature sensor to help the indoor unit make temperature adjustment decisions.

[0161] These components work together to enable the air conditioning system to not only provide a comfortable indoor temperature, but also to efficiently and intelligently adjust airflow direction, speed, and temperature under different conditions, thereby enhancing user comfort and optimizing energy efficiency.

[0162] It should be understood that although the steps in the above flowcharts are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the above flowcharts may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps. In addition, the above embodiments can be implemented independently or in combination with each other, without limitation.

[0163] It should be noted that, in the embodiments of this application, if the above methods are implemented as software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, or the parts that contribute to related technologies, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause an electronic device to execute all or part of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), magnetic disks, or optical disks. Thus, the embodiments of this application are not limited to any specific hardware and software combination.

[0164] This application provides an electronic device, which can be any possible device such as an air conditioner controller, and its internal structure diagram can be as follows: Figure 8 As shown, the electronic device includes a processor 502, a memory, and a network interface 503 connected via a system bus 501. The processor 502 provides computing and control capabilities. The memory includes internal memory 5041 and a non-volatile storage medium 5042. The non-volatile storage medium 5042 stores an operating system, computer programs, and a database. The internal memory 5041 provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium 5042. The database is used to store data. The network interface 503 is used to communicate with external terminals via a network connection. When the computer program is executed by the processor 502, it implements the aforementioned methods.

[0165] Based on the control method and electronic device of the air conditioner controller described above, this application also discloses a computer-readable storage medium storing a computer program that implements any of the above-described video generation methods when the computer program is executed by a processor.

[0166] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a non-volatile computer-readable storage medium. When executed, the program can include the processes of the embodiments of the methods described above. The storage medium can be a magnetic disk, optical disk, ROM, etc.

[0167] Any references to memory, storage, databases, or other media used herein may include non-volatile and / or volatile memory. Suitable non-volatile memory may include ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which is used as an external cache. By way of illustration and not limitation, RAM may take many forms, such as Static RAM (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), Rambus DRAM (RDRAM), and Direct Rambus DRAM (DRDRAM).

[0168] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also recognize that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0169] In the various embodiments of this application, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0170] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; they can be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0171] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0172] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three kinds of relationships. For example, object A and / or object B can represent three situations: object A exists alone, object A and object B exist simultaneously, and object B exists alone.

[0173] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0174] The methods disclosed in the several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0175] The features disclosed in the several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0176] The features disclosed in the several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method or device embodiments.

[0177] The air conditioner disclosed in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An air conditioner characterized by comprising: The application relates to an electric heating device, comprising: a housing formed with a receiving cavity; an evaporator arranged in the receiving cavity; an electric heating device rotatably arranged in the receiving cavity for generating heat; a fan arranged in the receiving cavity for causing airflow to flow through the evaporator and for causing airflow to flow through the electric heating device to transfer heat of the electric heating device; a controller electrically connected with the fan, the electric heating device and the evaporator respectively; the controller is configured to: determine an angle of the electric heating device corresponding to a maximum current of the electric heating device as a first target angle of the electric heating device when the electric heating device is in an open mode; control the electric heating device to rotate to the first target angle; determining the angle of the electric heating device corresponding to the maximum current of the electric heating device as the first target angle of the electric heating device comprises: determining that the fan reaches a target rotating speed and a current of the electric heating device is constant within a preset time period when the electric heating device is in the open mode, the target rotating speed being any one of a plurality of preset rotating speeds; acquiring currents of the electric heating device at different time points in a process in which the electric heating device rotates at different angles when the fan reaches the target rotating speed and the current of the electric heating device is constant within the preset time period; determining the angle of the electric heating device corresponding to the maximum current of the electric heating device at the different time points as the first target angle; determining an angle of the electric heating device corresponding to a maximum current of the fan as a second target angle of the electric heating device when the electric heating device is in a closed mode and the fan is in a first rotating speed mode, the first rotating speed being a rotating speed with the highest speed among a plurality of preset rotating speeds; controlling the electric heating device to rotate to the second target angle.

2. The air conditioner according to claim 1, wherein the controller is configured to determine the angle of the electric heating device corresponding to the maximum current of the electric heating device as the first target angle of the electric heating device, comprising: determining the angle of the electric heating device corresponding to the maximum current of the electric heating device as the first target angle of the electric heating device according to a correspondence between a plurality of currents of the electric heating device and a plurality of angles of the electric heating device when the electric heating device is in the open mode, the plurality of currents of the electric heating device including the maximum current of the electric heating device, and the plurality of angles of the electric heating device including the first target angle of the electric heating device.

3. The air conditioner according to claim 1, wherein the controller is configured to determine the angle of the electric heating device corresponding to the maximum current of the fan as the second target angle of the electric heating device, comprising: determining that the fan reaches the first rotating speed and a current of the fan is constant within a preset time period when the electric heating device is in the closed mode; acquiring currents of the fan at different time points in a process in which the electric heating device rotates at different angles when the fan reaches the first rotating speed and the current of the fan is constant within the preset time period; The angle of the electric heating device corresponding to the maximum current of the fan at the different time is determined as the second target angle of the electric heating device.

4. The air conditioner according to claim 1, wherein The controller is configured to determine the angle of the electric heating device corresponding to the maximum current of the fan as the second target angle of the electric heating device, including: In a case where the electric heating device is in the off mode and the fan is in the first rotating speed mode, the angle of the electric heating device corresponding to the maximum current of the fan is determined as the second target angle of the electric heating device according to the correspondence between the multiple currents of the fan and the multiple angles of the electric heating device, the multiple currents of the fan including the maximum current of the fan, and the multiple angles of the electric heating device including the second target angle.

5. The air conditioner according to any one of claims 1 to 2, characterized by, The controller is further configured to: In a case where the electric heating device is in the off mode and the fan is in the second rotating speed mode, the angle of the electric heating device corresponding to the minimum noise value of the air conditioner is determined as a third target angle of the electric heating device, the second rotating speed being a rotating speed lower than a highest rotating speed in a plurality of preset rotating speeds; The electric heating device is controlled to rotate to the third target angle.

6. The air conditioner according to any one of claims 1 to 2, characterized by The controller is further configured to: In a case where the air conditioner is powered on for the first time, the angle of the electric heating device corresponding to the minimum noise value of the air conditioner is determined as an initial angle of the electric heating device; The electric heating device is controlled to rotate to the initial angle.

7. The air conditioner according to any one of claims 1 to 2, characterized by The controller is further configured to: In a case where the electric heating device is in the on mode and the current of the electric heating device is outside a preset current range, the electric heating device is controlled to enter the off mode.

8. The air conditioner according to claim 7, wherein The air conditioner further includes: a display unit connected with the controller; The controller is further configured to: In a case where the electric heating device is in the on mode and the current of the electric heating device is outside a preset current range, the display unit is controlled to display fault information of the electric heating device.

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