Air conditioner

Abstract

The air conditioner comprises a shell, a containing cavity formed by the shell, an evaporator, an electric heating device rotationally arranged in the containing cavity, a draught fan and a controller, and the controller is connected with the draught fan, the electric heating device and the evaporator; the controller is configured to determine an angle of the electric heating device corresponding to a maximum current value of the electric heating device as a first target angle of the electric heating device when the electric heating device is in a starting mode; according to the method, the angle of the electric heating device is adjusted in the set working mode, and the product performance is improved under the condition that the cost of the draught fan and the cost of the electric heating device are not increased.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly relates to, but is not limited to, an air conditioner. Background Art

[0002] Electric heaters are widely used in household air conditioners. The installation angle of the electric heater often affects three indicators: duct noise, duct air volume, and electric heating power. However, these three indicators often cannot reach the optimal values simultaneously in the existing air conditioner control methods.

[0003] In the prior art, the installation angle of the electric heater is often fixed to minimize the duct noise. However, such an installation angle sacrifices the duct air volume and the low-temperature heating capacity of the electric heater, and can only be compensated by increasing the fan speed. As a result, the fan power increases, the efficiency decreases, the cost increases, and the product performance decreases. Summary of the Invention

[0004] An embodiment of the present application discloses an air conditioner, which improves the product performance without increasing the costs of the fan and the electric heating device by adjusting the angle of the electric heating device in a set working mode.

[0005] A first aspect of an embodiment of the present application discloses an air conditioner, including:

[0006] A housing, which forms a receiving cavity;

[0007] An evaporator, which is disposed in the receiving cavity;

[0008] An electric heating device, which is rotatably disposed in the receiving cavity and is used for generating heat;

[0009] A fan, which is disposed in the receiving cavity, is used for promoting air flow to flow through the evaporator, and is used for promoting air flow to flow through the electric heating device to transfer the heat of the electric heating device;

[0010] A controller, which 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, determine 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;

[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 rotate. Since the current of the electric heating device is the largest when the electric heating device is at the first target angle, the heating capacity of the electric heating device is the largest. Therefore, without increasing the rotational speed of the fan, the heating capacity of the electric heating device can be maximally exerted, effectively improving the performance of the product.

[0015] As an alternative implementation, in the 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 the first target angle of the electric heating device, including:

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

[0017] When the fan reaches the target rotational speed and the current of the electric heating device remains unchanged within a preset time period, obtain the current of the electric heating device at different moments during the rotation of the electric heating device at different angles;

[0018] Determine the angle of the electric heating device corresponding to the maximum current among the currents at different moments as the first target angle.

[0019] In the above technical solution, when the electric heating device is in the on mode, it is necessary to first determine that the fan reaches the target rotational speed and that the current of the electric heating device remains unchanged within a preset time period. When the fan reaches the target rotational speed and the current of the electric heating device remains unchanged within a preset time period, the current at different moments is obtained during the rotation of the electric heating device to determine the maximum current. The maximum current of the electric heating device can be obtained in real time according to the actual situation, so as to obtain the optimal installation angle of the electric heating device when the electric heating is in the on mode in real time, which helps to improve the heating efficiency of the electric heating device. In addition, the angular position of the electric heating does not change, the fan rotates at the set speed, and the current of the electric heating obtained within a period of time also does not change, indicating that the current of the electric heating and the angle of the electric heating are in a relatively stable state, providing a stable prerequisite for the change of the current of the electric heating caused by rotating the angle of the electric heating later, thereby enhancing the accuracy of finding the maximum current of the electric heating during the rotation of the electric heating. When the electric heating is in the on mode, the optimal electric heating angle can be found, which not only improves the heating efficiency of the electric heating, but also fully exerts the heating capacity of the electric heating and improves the electric heating power.

[0020] As an alternative embodiment, in the 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 the first target angle of the electric heating device, including:

[0021] When the electric heating device is in the on mode, according to the correspondence between multiple currents of the electric heating device and multiple angles of the electric heating device, determine the angle of the electric heating device corresponding to the maximum current of the electric heating device 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] In the above technical solution, when the electric heating device is in the on mode, the angle of the electric heating device corresponding to the maximum current of the electric heating device can be obtained as the first target angle according to the correspondence between multiple currents of the electric heating device pre-stored in the controller and multiple angles of the electric heating device. In this case, since the electric heating device current 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. Instead, 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 manner, enabling the full exertion of the heating capacity of the electric heating device, and enhancing the power of the electric heating device.

[0023] As an alternative embodiment, in the 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 mode of the first rotational speed, 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. The first rotational speed is the highest rotational speed among a preset number of rotational 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 rotational speed mode, 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 current of the fan is the largest and the rotational speed of the fan is the highest when the electric heating device is at the second target angle, it indicates that the angle of the electric heating device found can reduce the wind resistance in the air duct, thereby increasing the air volume in the air duct.

[0027] As an alternative implementation, in the 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 blower as the second target angle of the electric heating device, including:

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

[0029] When the blower reaches the first rotational speed and the current of the blower remains unchanged within a preset time period, obtain the current of the blower at different times during the rotation of the electric heating device at different angles;

[0030] Determine the angle of the electric heating device corresponding to the maximum current of the blower at different times as the second target angle.

[0031] In the above technical solution, when the electric heating device is in the on mode, it is necessary to first determine that the blower reaches the first rotational speed and determine that the current of the electric heating device remains unchanged within a preset time period. When the blower reaches the first rotational speed and the current of the electric heating device remains unchanged within a preset time period, the current of the blower at different times is obtained during the rotation of the electric heating device to determine the maximum blower current. The maximum current of the blower can be obtained in real time according to the actual situation, so as to obtain the optimal installation angle of the electric heating device in the on mode in real time, which helps to improve the heating efficiency of the electric heating device. In addition, the angular position of the electric heating device does not change, the blower rotates at a set speed, and the current of the blower obtained within a period of time also does not change, indicating that the current of the blower and the angle of the electric heating device are in a relatively stable state, providing a stable prerequisite for the change of the current of the blower caused by rotating the angle of the electric heating device later, thus enhancing the accuracy of finding the maximum current of the blower during the rotation of the electric heating device later. When the electric heating device is in the off mode and the blower reaches the first rotational speed, the optimal angle of the electric heating device can be found. At this time, when the blower current is the largest, it means that finding the optimal angle of the electric heating device can minimize the wind resistance in the air duct, thereby increasing the air volume in the air duct.

[0032] As an alternative implementation, in the 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 blower as the second target angle of the electric heating device, including:

[0033] When the electric heating device is in the off mode and the blower is in the mode of the first rotational speed, according to the correspondence between multiple currents of the blower and multiple angles of the electric heating device, determine the angle of the electric heating device corresponding to the maximum current of the blower as the second target angle, where the multiple currents of the blower include the maximum current of the blower, 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 blower is in the mode of the first rotational speed, the angle of the electric heating device corresponding to the maximum current of the blower can be obtained as the second target angle through the correspondence between multiple currents of the blower and multiple angles of the electric heating device pre-stored in the controller. In this case, since the blower current includes the maximum current of the blower 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 blower, and the electric heating device can be rotated to the second target angle according to the optimal angle of the electric heating device, thereby improving and reducing the air duct resistance and increasing the air volume of the air duct in a more efficient manner.

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

[0036] When the electric heating device is in the off mode and the blower is in the mode of the second rotational speed, determine the angle of the electric heating device corresponding to the lowest noise value of the air conditioner as the third target angle of the electric heating device, where the second rotational speed is a rotational speed lower than the highest rotational speed among the preset multiple rotational 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 blower is in the second rotational speed mode, the installation angle of the electric heating device corresponding to the lowest noise value of the air conditioner is used as the third target angle to which the electric heating device needs to rotate. At this time, the noise of the air conditioner is the lowest, improving the performance of the product.

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

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

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

[0042] In the above technical solution, when the air conditioner is powered on for the first time, whether it is at home, in the office or other places, the low noise makes people hardly feel the running sound of the air conditioner when it is turned on, and it will not interfere with people's rest, work, study and daily activities due to the suddenly appearing high noise. It can not only avoid causing bad emotions, but also protect people's hearing health.

[0043] As an alternative implementation, in the 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, control the electric heating device to enter the off mode.

[0045] In the above technical solution, when the electric heating device is in the on mode, if it is detected that the current of the electric heating device is outside the preset range, it indicates that the electric heating device has an abnormality. At this time, controlling the electric heating device to enter the off mode can avoid problems such as overheating, burning out and even short circuit of the electric heating device and other connected devices caused by continuous abnormal current, protect the safety and integrity of the equipment, reduce the maintenance cost and the possibility of equipment replacement, not only can reduce the safety risk, but also can extend the service life of the air conditioner.

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

[0047] A display unit, connected to the controller;

[0048] The controller is further 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, control the display unit to display the fault information of the electric heating device.

[0050] In the above technical solution, the air conditioner further includes a display unit. Therefore, when the electric heating device is in the on mode, if it is detected that the current of the electric heating device is outside the preset range, it indicates that the electric heating device has an abnormality. At this time, controlling the display unit to display the fault information of the electric heating device is convenient for the user to directly master the problem in the first time, and the user can understand the fault situation of the electric heating device without complicated troubleshooting and arrange maintenance in time; it is also convenient for the maintenance personnel to quickly locate the fault, improve the maintenance efficiency, and at the same time reduce the risk of misoperation caused by unclear faults, and improve the user experience and the convenience of air conditioner maintenance. Description of the Drawings

[0051] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

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

[0053] Figure 2 It is a control flow chart of an air conditioner controller disclosed in an embodiment of the present application;

[0054] Figure 3 It is a schematic structural diagram of an air conditioner control system disclosed in an embodiment of the present application;

[0055] Figure 4 It is a control flow chart of another air conditioner controller disclosed in an embodiment of the present application;

[0056] Figure 5 It is a control flow chart of another air conditioner controller disclosed in an embodiment of the present application;

[0057] Figure 6 It is a control flow chart of another air conditioner controller disclosed in an embodiment of the present application;

[0058] Figure 7 It is a control flow chart of another air conditioner controller disclosed in an embodiment of the present application;

[0059] Figure 8 It is an electronic device disclosed in an embodiment of the present application. Detailed implementation manners

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0061] It should be noted that the terms "first / second / third" involved in the embodiments of the present application are used to distinguish similar or different objects, and do not represent a specific order for the objects. It can be understood that "first / second / third" can be interchanged with a specific order or sequence under allowable circumstances, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0062] It should be noted that the terms "include" and "have" and any variations thereof in the embodiments of the present application and the accompanying drawings 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 listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0063] The application of electric heating devices in household air conditioners is becoming increasingly widespread. It is mainly used to provide the heating capacity of the air conditioner in low-temperature environments. Especially in cold seasons, when the conventional heating function of the air conditioner cannot operate efficiently, the electric heating device can provide an additional heat source. The installation angle of the electric heating device is one of the important factors affecting the performance of the air conditioner. Generally, the installation angle of the electric heating device is directly related to three key indicators: duct noise, duct air volume, and the power of the electric heating device. However, in existing air conditioner control methods, it is often difficult to optimize these three indicators simultaneously.

[0064] However, in related technologies, the control method of the air conditioner often fixes the installation angle of the electric heating device during design to minimize duct noise. Although this approach effectively reduces noise, it sacrifices the other two key indicators - duct air volume and the power of the electric heating device. To compensate for the insufficient duct air volume, the air conditioner system usually increases the fan speed. Although this can increase the air volume, it will increase the power consumption of the fan and reduce the overall efficiency of the system. In addition, the low-temperature heating capacity of the electric heating device may also be affected. Therefore, controlling the air conditioner for these three indicators of duct noise, duct air volume, and the power of the electric heating device to improve the overall performance of the air conditioner without increasing the cost of the air conditioner system is still a difficult point in the current technological development.

[0065] To solve the above problems, the embodiments of the present application disclose an air conditioner that improves the product performance without increasing the cost of the fan and the electric heating device by adjusting the installation angle of the electric heating device in different working modes.

[0066] It can be understood that the air conditioner in the embodiments of the present application may include floor-standing air conditioners, ducted air conditioners, and mobile air conditioners in vertical air conditioners, without specific limitations here. It may also include wall-mounted air conditioners, window air conditioners, ceiling-mounted air conditioners, and mobile air conditioners in horizontal air conditioners, without specific limitations here.

[0067] Taking the wall-mounted air conditioner as an example, the internal structure of the air conditioner and the control process of the air conditioner controller proposed in the embodiments of the present application will be introduced in detail in turn.

[0068] Please refer to Figure 1 , Figure 1FIG. 100 is a structural diagram of a wall-mounted air conditioner disclosed in an embodiment of the present application, including a housing 1, an evaporator 12, a blower 14, an electric heating motor 131, and an electric heating device 132. A receiving cavity 10 is formed inside the housing 1, and the evaporator 12, the electric heating device 132, and the blower 14 are all arranged in the receiving cavity. An air return opening 11 and an air outlet 15 communicating with the receiving cavity 10 are provided on the housing 1. The air return opening 11 is located at the rear side of the housing 1, and the air outlet 15 is arranged opposite to the air return opening 11. Among them, a heat exchange air duct can be formed by the housing 1, the receiving cavity 10, the air return opening 11, and the air outlet 15. In the direction of the air flow in the heat exchange air duct, the air return opening 11, the evaporator 12, the electric heating device 132, the blower 14, and the air outlet 15 are arranged in sequence. Among them, the blower 14 includes a fan motor 141, a cross-flow fan 142, and a fan volute 143. It can be understood that in a horizontal household air conditioner, such as a wall-mounted air conditioner, the indoor unit evaporator, the electric heating device, and the blower are all horizontally installed on the heat exchange air duct of the housing. In a vertical air conditioner, such as a floor-standing air conditioner, the indoor unit evaporator, the electric heating device, and the blower are all vertically installed on the heat exchange air duct of the housing. Hereinafter, each component of the air conditioner will be briefly introduced. The air return opening 11 is mainly used to circulate indoor air back to the air conditioning equipment for cooling or heating treatment.

[0069] The air return opening 11 of the wall-mounted air conditioner is usually arranged at the lower part or the side of the air conditioner. It can be understood that for different types of air conditioners, the installation position of the air return opening 11 is also different. For example, for a floor-standing cabinet air conditioner, the air return opening 11 is generally located at the bottom or the middle of the equipment and relies on the natural flow of air to be inhaled. For another example, the air return opening 11 of a central air conditioner is usually installed on the ceiling or on the wall. The design of the air return opening 11 of the central air conditioner is relatively scattered, and there are usually air return openings 11 in multiple rooms. For another example, the air return opening 11 of a window air conditioner is usually located on the back or the side of the air conditioner body and faces out of the window. The air conditioner inhales external air through these air return openings 11 for heating treatment.

[0070] In addition, the shape of the air return opening 11 is usually designed as a large-area grille or grid, which helps the air flow and balance in the whole system and can effectively reduce energy waste at the same time.

[0071] The evaporator 12 is arranged in the receiving cavity 10 and is mainly responsible for absorbing the heat in the room and transferring it to the refrigerant, thereby realizing temperature reduction. In order to ensure that air can effectively flow through the evaporator 12, the evaporator 12 is usually designed to be close to the place where air circulates. For example, the evaporator 12 of the wall-mounted air conditioner will be close to the air outlet 15 of the air conditioner to ensure that air can smoothly flow through the evaporator 12 and be cooled.

[0072] Optionally, there are many shapes of the evaporator 12, which can be selected according to actual needs. For example, coil shapes and fin designs, etc., are not specifically limited here.

[0073] An electric heating device 132, which is rotatably arranged in the accommodation cavity 10 and is used to generate heat. The main function of the electric heating device 132 is to provide heat. Especially in a low-temperature environment when the heating function of the air conditioner is insufficient, the electric heating device 132 converts electrical energy into heat energy, thereby increasing the indoor temperature and enhancing the heating effect of the air conditioner.

[0074] Optionally, the shape of the electric heating device can be various and can be selected according to the actual situation. For example, Figure 1 the shape of the electric heating device 132 of the wall-mounted air conditioner shown is a tubular electric heating tube. In addition, the electric heating device 132 can also be set as a plate-shaped electric heating plate, etc., and no specific limitation is made here. Among them:

[0075] The outer shape of the tubular electric heating tube is usually long strip-shaped or spiral-shaped, which can provide a large surface area and effectively conduct heat. The heating element of the plate-shaped electric heating device 132 is relatively thin and can usually be arranged at an appropriate position inside the air conditioner, which can provide uniform heat.

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

[0077] Optionally, there are many types of the electric heating device 132, which can be selected according to the actual situation. For example, a positive temperature coefficient (PTC) electric heating device 132, electromagnetic heating, ceramic heating, far-infrared heating, etc., and no specific limitation is made here.

[0078] In the air conditioner in the embodiment of the present application, the PTC electric heating device 132 is mainly selected as the electric heating device 132 because the PTC electric heating device 132 is a technology of an electric heating device 132 based on a positive temperature coefficient thermistor material. The characteristic of the PTC material is that its resistance increases with the increase of temperature. Different from the traditional electric heating device 132 element, the resistance of the PTC electric heating device 132 element gradually increases when the temperature rises, resulting in a decrease in current, thereby limiting the excessive temperature and making the heating process safer.

[0079] Optionally, there are also many types of the PTC electric heating device 132, which can be selected according to the actual needs. For example, PTC ceramic heating elements, PTC polymer heating elements, glass fiber heating elements, etc., and no specific limitation is made here.

[0080] The blower 14 is disposed within the accommodation chamber 10. On the one hand, the blower 14 is used to cause air flow to pass through the evaporator, evenly blowing the cooled air from the evaporator 12 into the room to achieve the purpose of cooling. Since the blower 14 can promote air flow, it can avoid the concentration of cold air volume in one area, thus improving comfort. On the other hand, the blower 14 can also evenly blow the air heated by the electric heating device into the room to achieve the purpose of heating and maintaining the temperature. Moreover, since the blower 14 can promote air flow, it can not only avoid the concentration of heat in one area, improving comfort, but also enhance the heating efficiency. In addition, when the electric heating device 132 is operating, it can also prevent the heating element from overheating and avoid damage to the heating element itself due to excessive temperature.

[0081] When the electric heating device is in the on mode, the electric heating device generates heat, and the blower 14 is used to cause air flow to pass 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 blower 14, air flow is inhaled from the return air inlet 11, then passes through the gaps between the heat dissipation aluminum fins and is blown out through the blower to the air outlet 15, completing the heat transfer.

[0082] In the embodiment of the present application, as Figure 1 shown, the position of the blower 14 is set 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 conditioner outlet, but also helps the hot air to be evenly blown out directly from the air conditioner outlet, enhancing the heating speed in the room.

[0083] Optionally, the blower 14 can also be set near the return air inlet 11 to help introduce indoor air and blow it to the heating element for heating.

[0084] Optionally, the shape of the blower 14 has many types and can be selected according to actual situations, such as axial flow blower 14, centrifugal blower 14, diagonal flow blower 14, turbine blower 14, and mixed flow blower 14, etc., which are not specifically limited herein.

[0085] The air outlet 15, the main function of the air outlet 15 is to effectively distribute the cold or hot air of the indoor unit of the air conditioner throughout the room. Its set position and shape are very important. Among them, the appropriate position and shape not only help to form good air flow, make the air distribution uniform, avoid the phenomenon of uneven cold and heat, but also avoid dead corners and air stagnation, enhancing air freshness. The appropriate shape of the air outlet 15 allows the user to control the direction of the air flow to meet different air conditioner requirements. For example, the air flow direction can be adjusted to avoid direct blowing of cold air or to better distribute the air, improving comfort.

[0086] In the embodiment of the present application, as Figure 1As shown, the air outlet 15 of the wall-mounted air conditioner is provided on the front of the air conditioner. It can be understood that for different types of air conditioners, the setting position of the air outlet can also be different. For example, the air outlet 15 of a floor-standing cabinet air conditioner is usually set at the upper or middle part of the air conditioner body, and is designed as a long strip with a large area or multiple small openings to quickly send air to all corners of the room. For another example, the air outlet 15 of a central air conditioner is usually installed on the ceiling and distributed at different positions in the room. For another example, the air outlet 15 of a window air conditioner is often located in the front or top of the device. These air outlets 15 directly face the interior of the room, aiming to send cold air (or hot air if it is a heat pump air conditioner) into the room.

[0087] Optionally, there are also many types of shapes of the air outlet 15, which can be selected according to the actual situation. For example, a circular air outlet 15, a square air outlet 15, a grille-type air outlet 15, and a grille-free air outlet 15, etc. are not specifically limited here. Among them:

[0088] In the embodiments of the present application, the above structural schematic diagram of the air conditioner can facilitate understanding of the internal structure of the air conditioner disclosed in the embodiments of the present application and the functions of the components constituting the air conditioner. It should be understood that the above examples are only illustrative and should not limit the structure of the air conditioner.

[0089] The air conditioner further includes a controller, and the controller is connected to the blower, the electric heating device, and the evaporator. Below will introduce in detail how the controller of the air conditioner adjusts the installation angle of the electric heating device according to different working modes of the air conditioner to achieve the effect of improving the product performance without increasing the cost of the blower and the electric heating device.

[0090] In the embodiments of the present 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; 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 used as the first target angle to which the electric heating device needs to rotate. Since the current of the electric heating device is the largest when the electric heating device is at the first target angle, the heating capacity of the electric heating device is the largest. Therefore, without increasing the rotation speed of the blower, the heating capacity of the electric heating device can be maximally exerted, effectively improving the product performance.

[0092] To more clearly understand the control method of the air conditioner controller, please refer to Figure 2 , Figure 2A control flowchart of an air conditioner controller disclosed in an embodiment of the present application, the flowchart at least includes 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, metal alloy heating, carbon fiber heating, electromagnetic heating, ceramic heating, etc., which are not specifically limited herein.

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

[0096] It can be understood that the air conditioner controller is the main control board of the air conditioner indoor unit, a device used to control and adjust the operating state of the air conditioner equipment, and it can be operated through buttons, touch screens or remote controls, which are not specifically limited herein.

[0097] Exemplarily, an embodiment of the present application also discloses a structural schematic diagram of an air conditioner control system. Please refer to Figure 3 , the structural diagram of the air conditioner control system includes a controller 31, a blower 14, an electric heating device 132, and an electric heating motor 131. The main control board of the air conditioner indoor unit is respectively connected to the blower 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 using the remote control, that is, 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, 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 blower 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., which are not specifically limited herein.

[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., which are not specifically limited herein.

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

[0101] The fan motor driving unit 311 is connected to the blower 14 and may include a driving chip, an IPM chip, etc. It is mainly used to control the blower 14 to rotate at a set speed when the controller 31 receives relevant control instructions for the blower 14. The electric heating device 132 control unit 312 is connected to the electric heating device 132 and may include a triode or a Darlington tube, a relay, etc. There is no specific limitation here. 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 relevant control instructions 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 and a differential operational amplifier circuit connected in series to the current loop of the electric heating device 132. There is no specific limitation here. It is mainly used to sample and amplify the current value flowing through the electric heating device 132 when the controller 31 receives the current sampling instruction for the electric heating device 132. The electric heating driving unit 314, which is connected to the electric heating device 132, includes a triode or a Darlington tube and is used to control the rotation of the electric heating motor 131 based on receiving relevant signals from the controller 31, so as to change the installation angle of the electric heating device 132.

[0102] Optionally, the fan motor driving unit 311 drives the blower to rotate, and can adopt DC motor drive, AC motor drive, brushless DC motor drive, stepper motor drive, asynchronous motor drive, and variable frequency drive, etc. There is no specific limitation here. It can be selected according to actual needs.

[0103] Exemplarily, taking a wall-mounted air conditioner controlled by a remote controller as an example, when the user uses the remote controller 44 to select the heating mode, that is, 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 supply of the electric heating device 132, so that the electric heating device 132 is in the on state. Then, it controls the current sampling unit 313 of the electric heating device 132 to sample the current signal of the electric heating device 132 and amplify it. Next, the obtained current signal is sent to the controller 31, and 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 the 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, so that the installation position of the electric heating device 132 rotates to the first target angle. It can be understood that at this time, the blower 14 can rotate at a certain speed according to the signal of the target speed sent by the controller 31 to the blower 14, and evenly blow the air heated by the electric heating device 132 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, metal alloy heating, carbon fiber heating, electromagnetic heating, ceramic heating, etc., which are not specifically limited herein.

[0105] In the above 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, it can be obtained through a plurality of current values of the electric heating device 132 and corresponding angle data of the electric heating device 132 preset and stored in the controller 31. The plurality of current values of the electric heating device 132 and the corresponding angle data of the electric heating device 132 can be obtained through experiments and pre-stored in the storage chip of the controller 31. Among them, the plurality of currents of the electric heating device 132 include the maximum current of the electric heating device 132, and the plurality of angles of the electric heating device 132 include the first target angle of the electric heating device 132. That is, the air conditioner controller 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 of the electric heating device 132 as the first target angle according to the corresponding relationship between the plurality of currents of the electric heating device 132 and the plurality of angles of the electric heating device 132.

[0106] Optionally, the storage chips in the controller may include non-volatile and volatile memories. Among them, the non-volatile memory may include ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), flash memory, etc., without specific limitation here. The volatile memory may include random access memory (RAM), etc., without specific limitation here.

[0107] In this technical solution, when the electric heating device 132 is in the on mode, based on the correspondence between multiple currents of the electric heating device 132 and multiple angles of the electric heating device 132 pre-stored in the controller 31, the angle of the electric heating device 132 corresponding to the maximum current of the electric heating device 132 is obtained as the first target angle. 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. Instead, the electric heating device 132 can be rotated to the first target angle according to the optimal angle of the electric heating device 132, thereby improving the heat dissipation efficiency of the electric heating device 132 in a more efficient manner, enabling the full play of the heating capacity of the electric heating device 132, and enhancing the power of the electric heating device 132.

[0108] In the above 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 may 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 blower 14 reaches the target speed and the current of the electric heating device 132 remains unchanged within a preset time period, and the target speed is any one of a preset plurality of speeds; when the blower 14 reaches the target speed and the current of the electric heating device 132 remains unchanged within a 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 current of the electric heating device 132 at different times as the first target angle.

[0109] In the above 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 determine that the current of the electric heating device remains unchanged within a preset time period. When the fan reaches the target speed and it is determined that the current of the electric heating device remains unchanged within the preset time period, the maximum current is determined by obtaining the currents at different times during the rotation of the electric heating device. The maximum current of the electric heating device can be obtained in real time according to the actual situation, so as to obtain the optimal installation angle of the electric heating device when it is in the on mode in real time, which helps to improve the heating efficiency of the electric heating device. In addition, the angular position of the electric heating does not change, the fan rotates at the set speed, and the current of the electric heating obtained within a period of time also does not change, indicating that the current of the electric heating and the angle of the electric heating are in a relatively stable state, providing a stable prerequisite for the subsequent rotation of the angle of the electric heating, which causes the current of the electric heating to change, thereby enhancing the accuracy of finding the maximum current of the electric heating during the rotation of the electric heating. When the electric heating is in the on mode, the optimal electric heating angle can be found, which not only improves the heating efficiency of the electric heating, but also gives full play to the heating capacity of the electric heating and improves the electric heating power.

[0110] To understand this method more clearly, please refer to Figure 4 , Figure 4 which is a flowchart of another control method of the air conditioner controller provided by the embodiment of the present application. The flowchart at least includes 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 reaches the target speed and the current of the electric heating device 132 remains unchanged within a preset time period, and the target speed is any one of a plurality of preset speeds;

[0112] Step S202: When the fan 14 reaches the target speed and the current of the electric heating device 132 remains unchanged within a preset time period, the current of the electric heating device 132 at different times is obtained during the rotation of the electric heating device 132 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 with currents at different times as the first target angle.

[0114] Step S204: The 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 Figure 3, the 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., which are not specifically limited herein. 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 rotational speed of the fan 14 according to the periodically changing current amplitude or frequency.

[0116] Optionally, other methods such as Hall elements can also be used for the speed feedback of the fan 14, which are not specifically limited herein.

[0117] Exemplarily, taking a wall-mounted air conditioner controlled by a remote controller 44, and the electric heating motor 131 being a 12V four-phase eight-beat stepper motor as an example, when the user selects the heating mode using the remote controller, that is, 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 supply of the electric heating device 132, so that the electric heating device 132 is in the on state. Moreover, the controller 31 also sends a signal for rotating at a target speed to the fan motor drive unit 311, and the fan motor drive unit 311 controls the blower 14 to rotate at the set target speed according to the signal of the target speed. The target speed is any one of a plurality of preset speeds. Then, the controller 31 controls the current sampling unit 313 of the electric heating device 132 to sample the current signal of the electric heating device 132 and amplify it, and controls the fan speed feedback unit 315 to obtain the current amplitude or frequency of the periodic change of the blower 14. Then, the sampling unit samples the blower 14, and the fan speed feedback unit 315 sends the obtained current signal of the electric heating device 132 and the current amplitude or frequency of the periodic change of the blower 14 to the controller 31. The controller 31 determines whether the current of the electric heating device 132 has changed according to the current of the electric heating device 132 obtained within a period of time. The controller 31 also obtains the speed of the blower 14 according to the obtained current amplitude or frequency of the periodic change, and determines whether the speed of the blower 14 has reached the set target speed. When the controller 31 determines that the current of the electric heating device 132 obtained within a period of time has not changed and the speed of the blower 14 has reached the set target speed. A four-phase eight-beat pulse width modulation signal is sent to the electric heating drive unit 314 of the electric heating device 132, and the electric heating drive unit 314 drives the stepper motor to drive the electric heating device 132 to rotate at different angles. In this case, the controller obtains the current of the electric heating device 132 at the moment when the electric heating device 132 rotates at different angles, and compares the currents of the electric heating device 132 at different moments, so as to obtain the rotation angle of the electric heating device 132 when the current of the electric heating device 132 is the largest 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 the off mode and the blower 14 is in the mode of the first rotation speed, determine the angle of the electric heating device 132 corresponding to the maximum current of the blower 14 as the second target angle of the electric heating device 132, where the first rotation speed is the highest rotation speed among a plurality of preset rotation speeds; control the electric heating device 132 to rotate to the second target angle. In this solution, in the above technical solution, when the electric heating device is in the off mode and the blower is in the first rotation speed mode, the installation angle of the electric heating device corresponding to the maximum current of the blower is used as the second target angle to which the electric heating device needs to rotate. Since the current of the blower is the largest when the electric heating device is at the second target angle and the rotation speed of the blower is the highest, it shows that the angle of the electric heating device found can reduce the wind resistance in the air duct, thereby increasing the air volume in the air duct.

[0119] To understand the control method of the air conditioner controller more clearly, please refer to Figure 5 , Figure 5 which is a control flow chart of an air conditioner controller disclosed in an embodiment of the present application. The flow chart at least includes the following steps S301 - S302.

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

[0121] Among them, the first rotation speed is the highest rotation speed among a plurality of preset rotation speeds.

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

[0123] Exemplarily, please further refer to Figure 3 , taking a wall-mounted air conditioner controlled by the remote controller 44 as an example. When the user uses the remote controller 44 to select the non-heating mode with high wind speed, that is, when the electric heating device 132 is in the off mode and the blower 14 is in the high rotation speed mode, the controller 31 determines the angle of the electric heating device 132 corresponding to the maximum current value of the blower 14 as the second target angle of the electric heating device 132, and drives the electric heating motor 131 to make the electric heating device 132 rotate to the first target angle. It can be understood that at this time, the blower 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 it through a plurality of fan 14 currents preset and stored in the controller 31 and a plurality of angle data of the corresponding electric heating device 132. The plurality of fan 14 currents and the corresponding plurality of angle data of the electric heating device 132 can be obtained through experiments and pre-stored in the storage chip of the controller 31. Among them, the plurality of currents of the fan 14 includes the maximum current of the fan 14, and the plurality of angles of the electric heating device 132 includes the second target angle 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 off mode and the fan 14 is in the first rotation speed mode, according to the correspondence between the plurality of currents of the fan 14 and the plurality of angles of the electric heating device 132, determine the angle of the electric heating device 132 corresponding to the maximum current of the fan 14 as the second target angle. The plurality of currents of the fan 14 includes the maximum current of the fan 14, and the plurality of angles of the electric heating device 132 includes the second target angle.

[0125] Optionally, the storage chip in the controller 31 may include a non-volatile and a volatile storage chip. Among them, the non-volatile memory may include ROM, programmable ROM (Programmable ROM, PROM), erasable PROM (Erasable PROM, EPROM), electrically erasable PROM (Electrically Erasable PROM, EEPROM) or flash memory, etc., and no specific limitation is made here. The volatile memory may include random access memory (random access memory, RAM), etc., and no specific limitation is made here.

[0126] In this technical solution, when the electric heating device 132 is in the off mode and the fan 14 is in the first rotation 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 through the correspondence between the plurality of currents of the fan 14 and the plurality of angles of the electric heating device 132 pre-stored in the controller 31. In this case, since the fan 14 current includes the maximum current of the fan 14, and the plurality of angles of the electric heating device 132 also includes 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, and the electric heating device 132 can be rotated to the second target angle according to the optimal angle of the electric heating device 132, thereby reducing the air duct wind resistance and increasing the air duct air volume in a more efficient manner.

[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 other embodiments, the controller can also obtain the angle of the electric heating device 132 corresponding to the maximum current of the blower 14 during the rotation of the electric heating device 132 by controlling the rotation of the electric heating device 132 as the second target angle. That is, the air conditioner controller 31 is configured to: when the electric heating device 132 is in the off mode, determine that the blower 14 reaches the first rotation speed and the current of the blower 14 remains unchanged within a preset time period; when the blower 14 reaches the first rotation speed and the current of the blower 14 remains unchanged within a preset time period, obtain the current of the blower 14 at different times during the rotation of the electric heating device 132 at different angles; determine the angle of the electric heating device 132 corresponding to the maximum current of the blower 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 blower reaches the first rotation speed and determine that the current of the electric heating device remains unchanged within a preset time period. When the blower reaches the first rotation speed and the current of the electric heating device remains unchanged within a preset time period, the maximum blower current is determined by obtaining the blower current at different times during the rotation of the electric heating device, and the maximum current of the blower can be obtained in real time according to the actual situation, so as to obtain the optimal installation angle of the electric heating device in the on mode in real time, which helps to improve the heating efficiency of the electric heating device. In addition, the angular position of the electric heating device does not change, the blower rotates at a set speed, and the current of the blower does not change within a period of time, indicating that the current of the blower and the angle of the electric heating device are in a relatively stable state, providing a stable prerequisite for the change of the blower current caused by rotating the angle of the electric heating device later, thus enhancing the accuracy of finding the maximum current of the blower during the rotation of the electric heating device, so that when the electric heating device is in the off mode and the blower reaches the first rotation speed, the optimal angle of the electric heating device can be found. At this time, when the blower current is the largest, it means that finding the optimal angle of the electric heating device can minimize the wind resistance in the air duct, thereby increasing the air volume in the air duct.

[0128] To understand this method more clearly, please refer to Figure 6 , Figure 6 which is a flowchart of another control method of the air conditioner controller provided by the embodiment of the present application. The flowchart at least includes 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 blower 14 reaches the first rotation speed and the current of the blower 14 remains unchanged within a preset time period;

[0130] Step S402: When the fan 14 reaches the first rotational speed and the current of the fan 14 remains unchanged within a preset time period, obtain the current of the fan 14 at different moments 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 moments as the second target angle.

[0132] Step S404: The 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 further to Figure 3 , which includes a high-precision low-resistance sampling resistor and a differential operational amplifier circuit connected in series to the bus current loop of the fan 14 for sampling and amplifying the bus current value of the fan 14.

[0134] Exemplarily, please refer further to Figure 3, taking a wall-mounted air conditioner controlled by a remote controller and with the electric heating motor 131 being a 12V four-phase eight-step stepper motor as an example, when the user selects the non-heating mode with high wind speed using the remote controller, that is, when the electric heating device 132 is in the off mode and the fan 14 is in the high wind speed mode, at this time, the controller 31 sends a low-level signal to the control unit 312 of the electric heating device 132 to disconnect the power supply of the electric heating device 132, so that the electric heating device 132 is in the off state. And, the controller 31 also sends a signal for high-speed rotation to the fan motor drive unit 311, and the fan motor drive unit 311 controls the fan 14 to rotate at the set high speed according to the signal of the high wind speed rotation. Then, the controller 31 controls the fan 14 current sampling unit to sample and amplify the current signal of the fan 14, and, the controller 31 also controls the fan speed feedback unit 315 to obtain the current amplitude or frequency of the periodic change of the fan 14. Then, the sampling unit samples the fan 14 and the fan speed feedback unit 315 sends the obtained current signal of the fan 14 and the current amplitude or frequency of the periodic change of the fan 14 to the controller 31. The controller 31 judges whether the current changes according to the current of the fan 14 obtained within a period of time. The controller 31 also obtains the rotation speed of the fan 14 according to the obtained current amplitude or frequency of the periodic change, and judges whether the rotation speed of the fan 14 reaches the set target rotation speed. When the controller 31 determines that the current of the fan 14 obtained within a period of time does not change and the rotation speed of the fan 14 reaches the set target rotation speed, it sends a pulse width modulation signal of four-phase eight-step to the electric heating drive unit 314 of the electric heating device 132. The electric heating drive unit 314 drives the stepper motor to drive the electric heating device 132 to rotate at different angles. In this case, the controller 31 obtains the current of the fan 14 at the moment when the electric heating device 132 rotates at different angles, and compares the currents of the fan 14 at different moments, so as to obtain the rotation angle of the electric heating device 132 when the current of the fan 14 is the largest as the second target angle. This second target angle is the angle position of the electric heating device 132 corresponding to the minimum wind resistance and the maximum air volume in the air duct 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 this second target angle and maintain it at this second target angle.

[0135] In some embodiments, the controller 31 is further configured to: when the electric heating device 132 is in the off mode and the blower 14 is in the second rotational 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 rotational speed is a rotational speed lower than the highest rotational speed among a plurality of preset rotational speeds; 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 the off mode and the blower 14 is in the second rotational 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, improving the performance of the product.

[0136] To understand this method more clearly, please refer to Figure 7 , Figure 7 which is a flowchart of another control method of the air conditioner controller provided by the embodiments of the present application. The flowchart at least includes the following steps S501 - S502.

[0137] Step S501: When the electric heating device 132 is in the off mode and the blower 14 is in the second rotational 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] Among them, the second rotational speed is a rotational speed lower than the highest rotational speed among a plurality of preset rotational speeds;

[0139] Optionally, the non - high - speed mode may include a medium rotational speed mode or a low rotational speed mode, and the rotational speeds of both the medium rotational speed mode and the low rotational speed mode are lower than the highest rotational speed.

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

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

[0142] Exemplarily, please further refer to Figure 3, taking a wall-mounted air conditioner controlled by a remote controller as an example, and the electric heating motor 131 is a 12V four-phase eight-step stepper motor. When the user selects the non-heating mode with medium wind speed using the remote controller 44, that is, when the electric heating device 132 is in the off mode and the blower 14 is in the medium wind speed mode, at this time, the controller 31 sends a high-level signal to the control unit 312 of the electric heating device 132 to cut off the power supply of the electric heating device 132, so that the electric heating device 132 is in the off state. And the controller 31 also sends a signal for medium-speed rotation to the fan motor drive unit 311, and the fan motor drive unit 311 controls the blower 14 to rotate at the set medium speed according to the signal of the high wind speed rotation. Then the controller 31 obtains the angle of the electric heating device 132 corresponding to the lowest noise of the preset air conditioner as the third target angle, and this third target angle is the angle position corresponding to the minimum noise in this mode. The controller 31 controls the stepper motor to drive the electric heating device 132 to rotate to this third target angle and maintain it at this third target angle.

[0143] In some embodiments, the controller 31 is further configured to: when the air conditioner is initially powered on, 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] Exemplarily, please further refer to Figure 3 , taking a wall-mounted air conditioner controlled by a remote controller 44 as an example, and the electric heating motor 131 is a 12V four-phase eight-step stepper motor. When the air conditioner is initially powered on, the controller 31 obtains the angle of the electric heating device 132 corresponding to the lowest noise of the preset air conditioner as the initial angle, and 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 initially powered on, whether at home, in the office or other places, the low noise makes people hardly feel its running sound when the air conditioner is turned on, and it will not interfere with people's rest, work, study and daily activities due to the sudden appearance of higher noise. It can not only avoid causing bad emotions, but also protect people's hearing health.

[0146] To avoid harm caused by abnormalities during the operation of the electric heating device 132, in some embodiments, the controller 31 is further configured to: 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 electric heating device 132 to enter the off mode.

[0147] Exemplarily, please further refer to Figure 3 , taking a wall-mounted air conditioner controlled by a remote controller 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 supply of the electric heating device 132, so that the electric heating device 132 is in the on state. The controller 31 controls the current sampling unit of the electric heating device 132 to sample the current signal of the electric heating device 132 and amplify it. Then, the obtained current signal of the electric heating device 132 is sent to the controller 31, and the controller 31 determines whether the current of the electric heating device 132 is outside the preset current magnitude range. When the controller 31 determines that the current of the electric heating device 132 is outside the preset current magnitude range, the controller 31 sends a low-level signal to the control unit 312 of the electric heating device 132 to turn off the power supply of the electric heating device 132, so that the electric heating device 132 is in the off state.

[0148] In this technical solution, when the electric heating device 132 is in the on mode and it is detected that the current of the electric heating device 132 is outside the preset range, it indicates that the electric heating device 132 has an abnormality. At this time, controlling the electric heating device 132 to enter the off mode can avoid problems such as overheating, burning out, and even short-circuiting of the electric heating device 132 and other connected devices caused by continuous abnormal current, protect the safety and integrity of the equipment, reduce the maintenance cost and the possibility of equipment replacement, not only can reduce the safety risk, but also can extend 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., which is not specifically limited here and can be selected according to the actual situation.

[0152] Exemplarily, please further refer to Figure 3, taking a wall-mounted air conditioner controlled by a remote controller 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 supply of the electric heating device 132, so that the electric heating device 132 is in the on state. The controller 31 controls the current sampling unit of the blower 14 to sample and amplify the current signal of the electric heating device 132. Then, the obtained current signal of the electric heating device 132 is sent to the controller 31, and the controller 31 determines whether the current of the electric heating device 132 is outside the preset current magnitude range. When the controller 31 determines that the current of the electric heating device 132 is outside the preset current magnitude 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 further includes a display unit 21. Therefore, when the electric heating device 132 is in the on mode and it is detected that the current of the electric heating device 132 is outside the preset range, it indicates that the electric heating device 132 has an abnormality. At this time, the display unit 21 is controlled to display the fault information of the electric heating device 132, which is convenient for the user to intuitively master the problem in the first time, understand the fault situation of the electric heating device 132 without complex troubleshooting, and arrange maintenance in time; it is also convenient for the maintenance personnel to quickly locate the fault, improve the maintenance efficiency, and at the same time reduce the risk of misoperation caused by unknown faults, enhancing the user experience and the convenience of air conditioner maintenance.

[0154] In some embodiments, please further refer to Figure 3 , the air conditioner may further include a left and right swing stepping motor 41, a temperature detection unit 42, an up and down swing stepping motor 43, a remote controller 44, a sliding panel stepping motor 45, and an outdoor control unit 46, etc., which are not specifically limited here. The left and right swing stepping motor 41, the temperature detection unit 42, the up and down swing stepping motor 43, the remote controller 44, the sliding panel stepping motor 45, and the outdoor control unit 46 are all connected to the controller 31. Among them:

[0155] The left and right swing stepping motor 41 is used to control the left and right swing of the air outlet 15 of the air conditioner. By precisely controlling the rotation of the stepping motor, the air conditioner can achieve the left and right swing of the air outlet 15, evenly distribute cold air or warm air, and avoid a certain area being affected by the concentrated air flow for a long time, thereby improving the air circulation and temperature uniformity.

[0156] The temperature detection unit 42 is mainly responsible for monitoring the temperature in the air conditioner environment. The air conditioner adjusts the operating mode, such as refrigeration, heating, wind speed, etc., according to the real-time temperature data to ensure that the temperature is maintained within the range set by the user. The accuracy of temperature detection directly affects the comfort and energy-saving effect of the air conditioner.

[0157] The up-and-down swing stepping motor 43 is mainly used to control the up-and-down swing of the air outlet 15 of the air conditioner. Similar to the left-and-right swing motor, it helps the air conditioner distribute the air flow to areas at different heights, ensuring a more uniform air-conditioning effect, avoiding the concentration of hot and cold air at a specific position, and enhancing the cooling or heating effect of the air conditioner.

[0158] The 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 wind speed, swing mode (up-and-down or left-and-right swing), and selecting different working modes (such as cooling, heating, dehumidification, etc.). The remote control 44 provides a more convenient operation method for users, avoiding the need to frequently operate near the air conditioner.

[0159] The sliding panel stepping motor 45 is mainly used to adjust the opening and closing of the air conditioner's exterior panel, especially in some air conditioners with a hidden design. It controls the opening and closing of the panel, thereby changing the appearance of the air conditioner or affecting the position where the air flows out. This function is usually used to optimize the appearance of the air conditioner or to close the panel in the non-working state to increase aesthetics.

[0160] The outdoor control unit 46 is mainly responsible for controlling the outdoor unit, including the operation of the condenser, the switching of the compressor, etc. By precisely controlling the operating state of the outdoor unit, it ensures that the air conditioner can work 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 not only to provide a comfortable indoor temperature but also to efficiently and intelligently adjust the wind direction, wind speed, and temperature under different conditions, enhancing the user's comfort experience and optimizing energy efficiency.

[0162] It should be understood that although the steps in the above flowcharts are shown in sequence according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, at least a part of the steps in the above flowcharts may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential either, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps. Additionally, the above multiple embodiments can be implemented independently or in combination with each other, and no limitation is imposed here.

[0163] It should be noted that in the embodiments of the present application, if the above method is implemented in the form of software functional modules and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiments of the present application, in essence, or the part that contributes to the related technology, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing an electronic device to execute all or part of the methods of the various embodiments of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), magnetic disks, or optical discs that can store program codes. In this way, the embodiments of the present application are not limited to any specific combination of hardware and software.

[0164] The embodiments of the present application provide an electronic device, which can be any possible device such as an air conditioner controller, and its internal structure diagram can be as Figure 8 shown. The electronic device includes a processor 502, a memory, and a network interface 503 connected through a system bus 501. Among them, the processor 502 of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes an internal memory 5041 and a non-volatile storage medium 5042. The non-volatile storage medium 5042 stores an operating system, a computer program, and a database. The internal memory 5041 provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium 5042. The database of the electronic device is used to store data. The network interface 503 of the electronic device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor 502, the above method is implemented.

[0165] Based on the above control method and electronic device of the air conditioner controller, the embodiments of the present application also disclose a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned method for generating any introduction video is implemented.

[0166] Those of ordinary skill in the art can understand that all or part of the processes of implementing the methods in the above embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a non-volatile computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above methods. Among them, the storage medium can be a magnetic disk, an optical disc, a ROM, etc.

[0167] Any reference to memory, storage, database, or other media as 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 acts as an external cache. By way of illustration and not limitation, RAM may be of various 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" mentioned throughout the specification means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "in one embodiment" or "in an embodiment" throughout the specification are not necessarily referring to the same embodiment. Additionally, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily essential to the present application.

[0169] In various embodiments of the present application, it should be understood that the magnitudes of the sequence numbers of the above processes do not necessarily imply an inevitable order of execution. The execution order of each process should be determined by its function and internal logic, and should not impose any limitation on the implementation process of the embodiments of the present application.

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

[0171] In addition, in each embodiment of this application, each functional unit can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0172] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three 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 article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

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

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

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

[0177] The air conditioner disclosed in the embodiments of this application has been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. At the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. An air conditioner, characterized in that, Comprising: A housing, which forms a receiving cavity; An evaporator, which is disposed in the receiving cavity; An electric heating device, which is rotatably disposed in the receiving cavity and is used for generating heat; A blower, which is disposed in the receiving cavity and is used for prompting air flow to flow through the evaporator and for prompting air flow to flow through the electric heating device to transfer the heat of the electric heating device; A controller, which is electrically connected to the blower, the electric heating device and the evaporator respectively; 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 of the electric heating device as the first target angle of the electric heating device; Control the electric heating device to rotate to the first 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, including: When the electric heating device is in the on mode, determine that the blower reaches a target speed and the current of the electric heating device remains unchanged within a preset time period, and the target speed is any one of a plurality of preset speeds; When the blower reaches the target speed and the current of the electric heating device remains unchanged within a preset time period, obtain the current of the electric heating device at different moments during the process of the electric heating device rotating at different angles; Determine the angle of the electric heating device corresponding to the maximum current of the current at different moments as the first target angle.

3. The air conditioner according to claim 1, characterized in that, 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, including: When the electric heating device is in the on mode, according to the correspondence between a plurality of currents of the electric heating device and a plurality of angles of the electric heating device, determine the angle of the electric heating device corresponding to the maximum current of the electric heating device as the first target angle, the plurality of currents of the electric heating device include the maximum current of the electric heating device, and the plurality of angles of the electric heating device include the first target angle of the electric heating device.

4. The air conditioner according to any one of claims 1 to 3, characterized in that, The controller is further configured to: When the electric heating device is in the off mode and the blower is in the mode of the first speed, determine the angle of the electric heating device corresponding to the maximum current of the blower as the second target angle of the electric heating device, and the first speed is the highest speed among a plurality of preset speeds; Control the electric heating device to rotate to the second target angle.

5. The air conditioner according to claim 4, characterized in that, The controller is configured to: determine the angle of the electric heating device corresponding to the maximum current of the blower as the second target angle of the electric heating device, including: When the electric heating device is in the off mode, determine that the blower reaches the first speed and the current of the blower remains unchanged within a preset time period; When the fan reaches the first rotational speed and the current of the fan remains unchanged within a preset time period, obtain the current of the fan at different moments during the process of the electric heating device rotating at different angles; Determine the angle of the electric heating device corresponding to the maximum current of the fan at different moments as the second target angle.

6. The air conditioner according to claim 4, 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: When the electric heating device is in the off mode and the fan is in the first rotational speed mode, according to the correspondence between multiple currents of the fan and multiple angles of the electric heating device, determine the angle of the electric heating device corresponding to the maximum current of the fan as the second target angle, where 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.

7. The air conditioner according to any one of claims 1 to 3, characterized in that, The controller is further configured to: When the electric heating device is in the off mode and the fan is in the second rotational speed mode, determine the angle of the electric heating device corresponding to the lowest noise value of the air conditioner as the third target angle of the electric heating device, where the second rotational speed is a rotational speed lower than the highest rotational speed among a preset number of rotational speeds; Control the electric heating device to rotate to the third target angle.

8. The air conditioner according to any one of claims 1 to 3, characterized in that, The controller is further configured to: When the air conditioner is initially powered on, determine the angle of the electric heating device corresponding to the lowest noise value of the air conditioner as the initial angle of the electric heating device; Control the electric heating device to rotate to the initial angle.

9. The air conditioner according to any one of claims 1 to 3, characterized in that, The controller is further configured to: When the electric heating device is in the on mode and the current of the electric heating device is outside the preset current range, control the electric heating device to enter the off mode.

10. The air conditioner according to claim 9, characterized in that, The air conditioner further includes: A display unit, connected to the controller; The controller is further configured to: When the electric heating device is in the on mode and the current of the electric heating device is outside the preset current range, control the display unit to display the fault information of the electric heating device.

Images